1OpenSSL CHANGES 2=============== 3 4This is a high-level summary of the most important changes. 5For a full list of changes, see the [git commit log][log] and 6pick the appropriate release branch. 7 8 [log]: https://github.com/openssl/openssl/commits/ 9 10OpenSSL Releases 11---------------- 12 13 - [OpenSSL 3.0](#openssl-30) 14 - [OpenSSL 1.1.1](#openssl-111) 15 - [OpenSSL 1.1.0](#openssl-110) 16 - [OpenSSL 1.0.2](#openssl-102) 17 - [OpenSSL 1.0.1](#openssl-101) 18 - [OpenSSL 1.0.0](#openssl-100) 19 - [OpenSSL 0.9.x](#openssl-09x) 20 21OpenSSL 3.0 22----------- 23 24For OpenSSL 3.0 a [Migration guide][] has been added, so the CHANGES entries 25listed here are only a brief description. 26The migration guide contains more detailed information related to new features, 27breaking changes, and mappings for the large list of deprecated functions. 28 29[Migration guide]: https://github.com/openssl/openssl/tree/master/doc/man7/migration_guide.pod 30 31### Changes between 3.0.15 and 3.0.16 [11 Feb 2025] 32 33 * Fixed timing side-channel in ECDSA signature computation. 34 35 There is a timing signal of around 300 nanoseconds when the top word of 36 the inverted ECDSA nonce value is zero. This can happen with significant 37 probability only for some of the supported elliptic curves. In particular 38 the NIST P-521 curve is affected. To be able to measure this leak, the 39 attacker process must either be located in the same physical computer or 40 must have a very fast network connection with low latency. 41 42 ([CVE-2024-13176]) 43 44 *Tomáš Mráz* 45 46 * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic 47 curve parameters. 48 49 Use of the low-level GF(2^m) elliptic curve APIs with untrusted 50 explicit values for the field polynomial can lead to out-of-bounds memory 51 reads or writes. 52 Applications working with "exotic" explicit binary (GF(2^m)) curve 53 parameters, that make it possible to represent invalid field polynomials 54 with a zero constant term, via the above or similar APIs, may terminate 55 abruptly as a result of reading or writing outside of array bounds. Remote 56 code execution cannot easily be ruled out. 57 58 ([CVE-2024-9143]) 59 60 *Viktor Dukhovni* 61 62### Changes between 3.0.14 and 3.0.15 [3 Sep 2024] 63 64 * Fixed possible denial of service in X.509 name checks. 65 66 Applications performing certificate name checks (e.g., TLS clients checking 67 server certificates) may attempt to read an invalid memory address when 68 comparing the expected name with an `otherName` subject alternative name of 69 an X.509 certificate. This may result in an exception that terminates the 70 application program. 71 72 ([CVE-2024-6119]) 73 74 *Viktor Dukhovni* 75 76 * Fixed possible buffer overread in SSL_select_next_proto(). 77 78 Calling the OpenSSL API function SSL_select_next_proto with an empty 79 supported client protocols buffer may cause a crash or memory contents 80 to be sent to the peer. 81 82 ([CVE-2024-5535]) 83 84 *Matt Caswell* 85 86### Changes between 3.0.13 and 3.0.14 [4 Jun 2024] 87 88 * Fixed potential use after free after SSL_free_buffers() is called. 89 90 The SSL_free_buffers function is used to free the internal OpenSSL 91 buffer used when processing an incoming record from the network. 92 The call is only expected to succeed if the buffer is not currently 93 in use. However, two scenarios have been identified where the buffer 94 is freed even when still in use. 95 96 The first scenario occurs where a record header has been received 97 from the network and processed by OpenSSL, but the full record body 98 has not yet arrived. In this case calling SSL_free_buffers will succeed 99 even though a record has only been partially processed and the buffer 100 is still in use. 101 102 The second scenario occurs where a full record containing application 103 data has been received and processed by OpenSSL but the application has 104 only read part of this data. Again a call to SSL_free_buffers will 105 succeed even though the buffer is still in use. 106 107 ([CVE-2024-4741]) 108 109 *Matt Caswell* 110 111 * Fixed an issue where checking excessively long DSA keys or parameters may 112 be very slow. 113 114 Applications that use the functions EVP_PKEY_param_check() or 115 EVP_PKEY_public_check() to check a DSA public key or DSA parameters may 116 experience long delays. Where the key or parameters that are being checked 117 have been obtained from an untrusted source this may lead to a Denial of 118 Service. 119 120 To resolve this issue DSA keys larger than OPENSSL_DSA_MAX_MODULUS_BITS 121 will now fail the check immediately with a DSA_R_MODULUS_TOO_LARGE error 122 reason. 123 124 ([CVE-2024-4603]) 125 126 *Tomáš Mráz* 127 128 * Improved EC/DSA nonce generation routines to avoid bias and timing 129 side channel leaks. 130 131 Thanks to Florian Sieck from Universität zu Lübeck and George Pantelakis 132 and Hubert Kario from Red Hat for reporting the issues. 133 134 *Tomáš Mráz and Paul Dale* 135 136 * Fixed an issue where some non-default TLS server configurations can cause 137 unbounded memory growth when processing TLSv1.3 sessions. An attacker may 138 exploit certain server configurations to trigger unbounded memory growth that 139 would lead to a Denial of Service 140 141 This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option 142 is being used (but not if early_data is also configured and the default 143 anti-replay protection is in use). In this case, under certain conditions, 144 the session cache can get into an incorrect state and it will fail to flush 145 properly as it fills. The session cache will continue to grow in an unbounded 146 manner. A malicious client could deliberately create the scenario for this 147 failure to force a Denial of Service. It may also happen by accident in 148 normal operation. 149 150 ([CVE-2024-2511]) 151 152 *Matt Caswell* 153 154 * New atexit configuration switch, which controls whether the OPENSSL_cleanup 155 is registered when libcrypto is unloaded. This can be used on platforms 156 where using atexit() from shared libraries causes crashes on exit. 157 158 *Randall S. Becker* 159 160### Changes between 3.0.12 and 3.0.13 [30 Jan 2024] 161 162 * A file in PKCS12 format can contain certificates and keys and may come from 163 an untrusted source. The PKCS12 specification allows certain fields to be 164 NULL, but OpenSSL did not correctly check for this case. A fix has been 165 applied to prevent a NULL pointer dereference that results in OpenSSL 166 crashing. If an application processes PKCS12 files from an untrusted source 167 using the OpenSSL APIs then that application will be vulnerable to this 168 issue prior to this fix. 169 170 OpenSSL APIs that were vulnerable to this are: PKCS12_parse(), 171 PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() 172 and PKCS12_newpass(). 173 174 We have also fixed a similar issue in SMIME_write_PKCS7(). However since this 175 function is related to writing data we do not consider it security 176 significant. 177 178 ([CVE-2024-0727]) 179 180 *Matt Caswell* 181 182 * When function EVP_PKEY_public_check() is called on RSA public keys, 183 a computation is done to confirm that the RSA modulus, n, is composite. 184 For valid RSA keys, n is a product of two or more large primes and this 185 computation completes quickly. However, if n is an overly large prime, 186 then this computation would take a long time. 187 188 An application that calls EVP_PKEY_public_check() and supplies an RSA key 189 obtained from an untrusted source could be vulnerable to a Denial of Service 190 attack. 191 192 The function EVP_PKEY_public_check() is not called from other OpenSSL 193 functions however it is called from the OpenSSL pkey command line 194 application. For that reason that application is also vulnerable if used 195 with the "-pubin" and "-check" options on untrusted data. 196 197 To resolve this issue RSA keys larger than OPENSSL_RSA_MAX_MODULUS_BITS will 198 now fail the check immediately with an RSA_R_MODULUS_TOO_LARGE error reason. 199 200 ([CVE-2023-6237]) 201 202 *Tomáš Mráz* 203 204 * Restore the encoding of SM2 PrivateKeyInfo and SubjectPublicKeyInfo to 205 have the contained AlgorithmIdentifier.algorithm set to id-ecPublicKey 206 rather than SM2. 207 208 *Richard Levitte* 209 210 * The POLY1305 MAC (message authentication code) implementation in OpenSSL 211 for PowerPC CPUs saves the contents of vector registers in different 212 order than they are restored. Thus the contents of some of these vector 213 registers is corrupted when returning to the caller. The vulnerable code is 214 used only on newer PowerPC processors supporting the PowerISA 2.07 215 instructions. 216 217 The consequences of this kind of internal application state corruption can 218 be various - from no consequences, if the calling application does not 219 depend on the contents of non-volatile XMM registers at all, to the worst 220 consequences, where the attacker could get complete control of the 221 application process. However unless the compiler uses the vector registers 222 for storing pointers, the most likely consequence, if any, would be an 223 incorrect result of some application dependent calculations or a crash 224 leading to a denial of service. 225 226 ([CVE-2023-6129]) 227 228 *Rohan McLure* 229 230 * Fix excessive time spent in DH check / generation with large Q parameter 231 value. 232 233 Applications that use the functions DH_generate_key() to generate an 234 X9.42 DH key may experience long delays. Likewise, applications that use 235 DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() 236 to check an X9.42 DH key or X9.42 DH parameters may experience long delays. 237 Where the key or parameters that are being checked have been obtained from 238 an untrusted source this may lead to a Denial of Service. 239 240 ([CVE-2023-5678]) 241 242 *Richard Levitte* 243 244### Changes between 3.0.11 and 3.0.12 [24 Oct 2023] 245 246 * Fix incorrect key and IV resizing issues when calling EVP_EncryptInit_ex2(), 247 EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() with OSSL_PARAM parameters 248 that alter the key or IV length ([CVE-2023-5363]). 249 250 *Paul Dale* 251 252### Changes between 3.0.10 and 3.0.11 [19 Sep 2023] 253 254 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 255 256 The POLY1305 MAC (message authentication code) implementation in OpenSSL 257 does not save the contents of non-volatile XMM registers on Windows 64 258 platform when calculating the MAC of data larger than 64 bytes. Before 259 returning to the caller all the XMM registers are set to zero rather than 260 restoring their previous content. The vulnerable code is used only on newer 261 x86_64 processors supporting the AVX512-IFMA instructions. 262 263 The consequences of this kind of internal application state corruption can 264 be various - from no consequences, if the calling application does not 265 depend on the contents of non-volatile XMM registers at all, to the worst 266 consequences, where the attacker could get complete control of the 267 application process. However given the contents of the registers are just 268 zeroized so the attacker cannot put arbitrary values inside, the most likely 269 consequence, if any, would be an incorrect result of some application 270 dependent calculations or a crash leading to a denial of service. 271 272 ([CVE-2023-4807]) 273 274 *Bernd Edlinger* 275 276### Changes between 3.0.9 and 3.0.10 [1 Aug 2023] 277 278 * Fix excessive time spent checking DH q parameter value. 279 280 The function DH_check() performs various checks on DH parameters. After 281 fixing CVE-2023-3446 it was discovered that a large q parameter value can 282 also trigger an overly long computation during some of these checks. 283 A correct q value, if present, cannot be larger than the modulus p 284 parameter, thus it is unnecessary to perform these checks if q is larger 285 than p. 286 287 If DH_check() is called with such q parameter value, 288 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 289 intensive checks are skipped. 290 291 ([CVE-2023-3817]) 292 293 *Tomáš Mráz* 294 295 * Fix DH_check() excessive time with over sized modulus. 296 297 The function DH_check() performs various checks on DH parameters. One of 298 those checks confirms that the modulus ("p" parameter) is not too large. 299 Trying to use a very large modulus is slow and OpenSSL will not normally use 300 a modulus which is over 10,000 bits in length. 301 302 However the DH_check() function checks numerous aspects of the key or 303 parameters that have been supplied. Some of those checks use the supplied 304 modulus value even if it has already been found to be too large. 305 306 A new limit has been added to DH_check of 32,768 bits. Supplying a 307 key/parameters with a modulus over this size will simply cause DH_check() to 308 fail. 309 310 ([CVE-2023-3446]) 311 312 *Matt Caswell* 313 314 * Do not ignore empty associated data entries with AES-SIV. 315 316 The AES-SIV algorithm allows for authentication of multiple associated 317 data entries along with the encryption. To authenticate empty data the 318 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 319 with NULL pointer as the output buffer and 0 as the input buffer length. 320 The AES-SIV implementation in OpenSSL just returns success for such call 321 instead of performing the associated data authentication operation. 322 The empty data thus will not be authenticated. ([CVE-2023-2975]) 323 324 Thanks to Juerg Wullschleger (Google) for discovering the issue. 325 326 The fix changes the authentication tag value and the ciphertext for 327 applications that use empty associated data entries with AES-SIV. 328 To decrypt data encrypted with previous versions of OpenSSL the application 329 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 330 entries. 331 332 *Tomáš Mráz* 333 334### Changes between 3.0.8 and 3.0.9 [30 May 2023] 335 336 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 337 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 338 339 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 340 numeric text form. For gigantic sub-identifiers, this would take a very 341 long time, the time complexity being O(n^2) where n is the size of that 342 sub-identifier. ([CVE-2023-2650]) 343 344 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 345 IDENTIFIER to canonical numeric text form if the size of that OBJECT 346 IDENTIFIER is 586 bytes or less, and fail otherwise. 347 348 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 349 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 350 most 128 sub-identifiers, and that the maximum value that each sub- 351 identifier may have is 2^32-1 (4294967295 decimal). 352 353 For each byte of every sub-identifier, only the 7 lower bits are part of 354 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 355 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 356 bytes. 357 358 *Richard Levitte* 359 360 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 361 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 362 trigger a crash of an application using AES-XTS decryption if the memory 363 just after the buffer being decrypted is not mapped. 364 Thanks to Anton Romanov (Amazon) for discovering the issue. 365 ([CVE-2023-1255]) 366 367 *Nevine Ebeid* 368 369 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 370 The previous fix for this timing side channel turned out to cause 371 a severe 2-3x performance regression in the typical use case 372 compared to 3.0.7. The new fix uses existing constant time 373 code paths, and restores the previous performance level while 374 fully eliminating all existing timing side channels. 375 The fix was developed by Bernd Edlinger with testing support 376 by Hubert Kario. 377 378 *Bernd Edlinger* 379 380 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 381 that it does not enable policy checking. Thanks to David Benjamin for 382 discovering this issue. 383 ([CVE-2023-0466]) 384 385 *Tomáš Mráz* 386 387 * Fixed an issue where invalid certificate policies in leaf certificates are 388 silently ignored by OpenSSL and other certificate policy checks are skipped 389 for that certificate. A malicious CA could use this to deliberately assert 390 invalid certificate policies in order to circumvent policy checking on the 391 certificate altogether. 392 ([CVE-2023-0465]) 393 394 *Matt Caswell* 395 396 * Limited the number of nodes created in a policy tree to mitigate 397 against CVE-2023-0464. The default limit is set to 1000 nodes, which 398 should be sufficient for most installations. If required, the limit 399 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 400 time define to a desired maximum number of nodes or zero to allow 401 unlimited growth. 402 ([CVE-2023-0464]) 403 404 *Paul Dale* 405 406### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 407 408 * Fixed NULL dereference during PKCS7 data verification. 409 410 A NULL pointer can be dereferenced when signatures are being 411 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 412 algorithm used for the signature is known to the OpenSSL library but 413 the implementation of the hash algorithm is not available the digest 414 initialization will fail. There is a missing check for the return 415 value from the initialization function which later leads to invalid 416 usage of the digest API most likely leading to a crash. 417 ([CVE-2023-0401]) 418 419 PKCS7 data is processed by the SMIME library calls and also by the 420 time stamp (TS) library calls. The TLS implementation in OpenSSL does 421 not call these functions however third party applications would be 422 affected if they call these functions to verify signatures on untrusted 423 data. 424 425 *Tomáš Mráz* 426 427 * Fixed X.400 address type confusion in X.509 GeneralName. 428 429 There is a type confusion vulnerability relating to X.400 address processing 430 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 431 but the public structure definition for GENERAL_NAME incorrectly specified 432 the type of the x400Address field as ASN1_TYPE. This field is subsequently 433 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 434 than an ASN1_STRING. 435 436 When CRL checking is enabled (i.e. the application sets the 437 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 438 pass arbitrary pointers to a memcmp call, enabling them to read memory 439 contents or enact a denial of service. 440 ([CVE-2023-0286]) 441 442 *Hugo Landau* 443 444 * Fixed NULL dereference validating DSA public key. 445 446 An invalid pointer dereference on read can be triggered when an 447 application tries to check a malformed DSA public key by the 448 EVP_PKEY_public_check() function. This will most likely lead 449 to an application crash. This function can be called on public 450 keys supplied from untrusted sources which could allow an attacker 451 to cause a denial of service attack. 452 453 The TLS implementation in OpenSSL does not call this function 454 but applications might call the function if there are additional 455 security requirements imposed by standards such as FIPS 140-3. 456 ([CVE-2023-0217]) 457 458 *Shane Lontis, Tomáš Mráz* 459 460 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 461 462 An invalid pointer dereference on read can be triggered when an 463 application tries to load malformed PKCS7 data with the 464 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 465 466 The result of the dereference is an application crash which could 467 lead to a denial of service attack. The TLS implementation in OpenSSL 468 does not call this function however third party applications might 469 call these functions on untrusted data. 470 ([CVE-2023-0216]) 471 472 *Tomáš Mráz* 473 474 * Fixed Use-after-free following BIO_new_NDEF. 475 476 The public API function BIO_new_NDEF is a helper function used for 477 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 478 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 479 be called directly by end user applications. 480 481 The function receives a BIO from the caller, prepends a new BIO_f_asn1 482 filter BIO onto the front of it to form a BIO chain, and then returns 483 the new head of the BIO chain to the caller. Under certain conditions, 484 for example if a CMS recipient public key is invalid, the new filter BIO 485 is freed and the function returns a NULL result indicating a failure. 486 However, in this case, the BIO chain is not properly cleaned up and the 487 BIO passed by the caller still retains internal pointers to the previously 488 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 489 then a use-after-free will occur. This will most likely result in a crash. 490 ([CVE-2023-0215]) 491 492 *Viktor Dukhovni, Matt Caswell* 493 494 * Fixed Double free after calling PEM_read_bio_ex. 495 496 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 497 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 498 data. If the function succeeds then the "name_out", "header" and "data" 499 arguments are populated with pointers to buffers containing the relevant 500 decoded data. The caller is responsible for freeing those buffers. It is 501 possible to construct a PEM file that results in 0 bytes of payload data. 502 In this case PEM_read_bio_ex() will return a failure code but will populate 503 the header argument with a pointer to a buffer that has already been freed. 504 If the caller also frees this buffer then a double free will occur. This 505 will most likely lead to a crash. 506 507 The functions PEM_read_bio() and PEM_read() are simple wrappers around 508 PEM_read_bio_ex() and therefore these functions are also directly affected. 509 510 These functions are also called indirectly by a number of other OpenSSL 511 functions including PEM_X509_INFO_read_bio_ex() and 512 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 513 internal uses of these functions are not vulnerable because the caller does 514 not free the header argument if PEM_read_bio_ex() returns a failure code. 515 ([CVE-2022-4450]) 516 517 *Kurt Roeckx, Matt Caswell* 518 519 * Fixed Timing Oracle in RSA Decryption. 520 521 A timing based side channel exists in the OpenSSL RSA Decryption 522 implementation which could be sufficient to recover a plaintext across 523 a network in a Bleichenbacher style attack. To achieve a successful 524 decryption an attacker would have to be able to send a very large number 525 of trial messages for decryption. The vulnerability affects all RSA padding 526 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 527 ([CVE-2022-4304]) 528 529 *Dmitry Belyavsky, Hubert Kario* 530 531 * Fixed X.509 Name Constraints Read Buffer Overflow. 532 533 A read buffer overrun can be triggered in X.509 certificate verification, 534 specifically in name constraint checking. The read buffer overrun might 535 result in a crash which could lead to a denial of service attack. 536 In a TLS client, this can be triggered by connecting to a malicious 537 server. In a TLS server, this can be triggered if the server requests 538 client authentication and a malicious client connects. 539 ([CVE-2022-4203]) 540 541 *Viktor Dukhovni* 542 543 * Fixed X.509 Policy Constraints Double Locking security issue. 544 545 If an X.509 certificate contains a malformed policy constraint and 546 policy processing is enabled, then a write lock will be taken twice 547 recursively. On some operating systems (most widely: Windows) this 548 results in a denial of service when the affected process hangs. Policy 549 processing being enabled on a publicly facing server is not considered 550 to be a common setup. 551 ([CVE-2022-3996]) 552 553 *Paul Dale* 554 555 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 556 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 557 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 558 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 559 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 560 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 561 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 562 for legacy EC and SM2 keys is also changed similarly to honor the 563 equivalent conversion format flag as specified in the underlying 564 `EC_KEY` object being exported to a provider, when this function is 565 called through `EVP_PKEY_export()`. 566 567 *Nicola Tuveri* 568 569### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 570 571 * Fixed two buffer overflows in punycode decoding functions. 572 573 A buffer overrun can be triggered in X.509 certificate verification, 574 specifically in name constraint checking. Note that this occurs after 575 certificate chain signature verification and requires either a CA to 576 have signed the malicious certificate or for the application to continue 577 certificate verification despite failure to construct a path to a trusted 578 issuer. 579 580 In a TLS client, this can be triggered by connecting to a malicious 581 server. In a TLS server, this can be triggered if the server requests 582 client authentication and a malicious client connects. 583 584 An attacker can craft a malicious email address to overflow 585 an arbitrary number of bytes containing the `.` character (decimal 46) 586 on the stack. This buffer overflow could result in a crash (causing a 587 denial of service). 588 ([CVE-2022-3786]) 589 590 An attacker can craft a malicious email address to overflow four 591 attacker-controlled bytes on the stack. This buffer overflow could 592 result in a crash (causing a denial of service) or potentially remote code 593 execution depending on stack layout for any given platform/compiler. 594 ([CVE-2022-3602]) 595 596 *Paul Dale* 597 598 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 599 parameters in OpenSSL code. 600 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 601 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 602 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 603 Using these invalid names may cause algorithms to use slower methods 604 that ignore the CRT parameters. 605 606 *Shane Lontis* 607 608 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 609 operations. 610 611 *Tomáš Mráz* 612 613 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 614 data to be signed before signing the certificate. 615 616 *Gibeom Gwon* 617 618 * Added RIPEMD160 to the default provider. 619 620 *Paul Dale* 621 622 * Ensured that the key share group sent or accepted for the key exchange 623 is allowed for the protocol version. 624 625 *Matt Caswell* 626 627### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 628 629 * OpenSSL supports creating a custom cipher via the legacy 630 EVP_CIPHER_meth_new() function and associated function calls. This function 631 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 632 to use the new provider mechanism in order to implement custom ciphers. 633 634 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 635 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 636 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 637 and decryption initialisation functions). Instead of using the custom cipher 638 directly it incorrectly tries to fetch an equivalent cipher from the 639 available providers. An equivalent cipher is found based on the NID passed to 640 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 641 given cipher. However it is possible for an application to incorrectly pass 642 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 643 is used in this way the OpenSSL encryption/decryption initialisation function 644 will match the NULL cipher as being equivalent and will fetch this from the 645 available providers. This will succeed if the default provider has been 646 loaded (or if a third party provider has been loaded that offers this 647 cipher). Using the NULL cipher means that the plaintext is emitted as the 648 ciphertext. 649 650 Applications are only affected by this issue if they call 651 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 652 encryption/decryption initialisation function. Applications that only use 653 SSL/TLS are not impacted by this issue. 654 ([CVE-2022-3358]) 655 656 *Matt Caswell* 657 658 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 659 on MacOS 10.11 660 661 *Richard Levitte* 662 663 * Fixed the linux-mips64 Configure target which was missing the 664 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 665 platform. 666 667 *Adam Joseph* 668 669 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 670 ticket 671 672 *Matt Caswell* 673 674 * Correctly handle a retransmitted ClientHello in DTLS 675 676 *Matt Caswell* 677 678 * Fixed detection of ktls support in cross-compile environment on Linux 679 680 *Tomas Mraz* 681 682 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 683 against 3.0.x 684 685 *Paul Dale* 686 687 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 688 report correct results in some cases 689 690 *Matt Caswell* 691 692 * Fix UWP builds by defining VirtualLock 693 694 *Charles Milette* 695 696 * For known safe primes use the minimum key length according to RFC 7919. 697 Longer private key sizes unnecessarily raise the cycles needed to compute the 698 shared secret without any increase of the real security. This fixes a 699 regression from 1.1.1 where these shorter keys were generated for the known 700 safe primes. 701 702 *Tomas Mraz* 703 704 * Added the loongarch64 target 705 706 *Shi Pujin* 707 708 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 709 only passed to the FIPS provider and not to the default or legacy provider. 710 711 *Juergen Christ* 712 713 * Fixed reported performance degradation on aarch64. Restored the 714 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 715 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 716 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 717 The new algorithm is still used for 32 bit targets. 718 719 *Bernd Edlinger* 720 721 * Added a missing header for memcmp that caused compilation failure on some 722 platforms 723 724 *Gregor Jasny* 725 726### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 727 728 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 729 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 730 This issue makes the RSA implementation with 2048 bit private keys 731 incorrect on such machines and memory corruption will happen during 732 the computation. As a consequence of the memory corruption an attacker 733 may be able to trigger a remote code execution on the machine performing 734 the computation. 735 736 SSL/TLS servers or other servers using 2048 bit RSA private keys running 737 on machines supporting AVX512IFMA instructions of the X86_64 architecture 738 are affected by this issue. 739 ([CVE-2022-2274]) 740 741 *Xi Ruoyao* 742 743 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 744 implementation would not encrypt the entirety of the data under some 745 circumstances. This could reveal sixteen bytes of data that was 746 preexisting in the memory that wasn't written. In the special case of 747 "in place" encryption, sixteen bytes of the plaintext would be revealed. 748 749 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 750 they are both unaffected. 751 ([CVE-2022-2097]) 752 753 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 754 755### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 756 757 * In addition to the c_rehash shell command injection identified in 758 CVE-2022-1292, further bugs where the c_rehash script does not 759 properly sanitise shell metacharacters to prevent command injection have been 760 fixed. 761 762 When the CVE-2022-1292 was fixed it was not discovered that there 763 are other places in the script where the file names of certificates 764 being hashed were possibly passed to a command executed through the shell. 765 766 This script is distributed by some operating systems in a manner where 767 it is automatically executed. On such operating systems, an attacker 768 could execute arbitrary commands with the privileges of the script. 769 770 Use of the c_rehash script is considered obsolete and should be replaced 771 by the OpenSSL rehash command line tool. 772 (CVE-2022-2068) 773 774 *Daniel Fiala, Tomáš Mráz* 775 776 * Case insensitive string comparison no longer uses locales. It has instead 777 been directly implemented. 778 779 *Paul Dale* 780 781### Changes between 3.0.2 and 3.0.3 [3 May 2022] 782 783 * Case insensitive string comparison is reimplemented via new locale-agnostic 784 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 785 comparison. The previous implementation had problems when the Turkish locale 786 was used. 787 788 *Dmitry Belyavskiy* 789 790 * Fixed a bug in the c_rehash script which was not properly sanitising shell 791 metacharacters to prevent command injection. This script is distributed by 792 some operating systems in a manner where it is automatically executed. On 793 such operating systems, an attacker could execute arbitrary commands with the 794 privileges of the script. 795 796 Use of the c_rehash script is considered obsolete and should be replaced 797 by the OpenSSL rehash command line tool. 798 (CVE-2022-1292) 799 800 *Tomáš Mráz* 801 802 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 803 certificate on an OCSP response. The bug caused the function in the case 804 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 805 response (meaning a successful verification) even in the case where the 806 response signing certificate fails to verify. 807 808 It is anticipated that most users of `OCSP_basic_verify` will not use the 809 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 810 a negative value (indicating a fatal error) in the case of a certificate 811 verification failure. The normal expected return value in this case would be 812 0. 813 814 This issue also impacts the command line OpenSSL "ocsp" application. When 815 verifying an ocsp response with the "-no_cert_checks" option the command line 816 application will report that the verification is successful even though it 817 has in fact failed. In this case the incorrect successful response will also 818 be accompanied by error messages showing the failure and contradicting the 819 apparently successful result. 820 ([CVE-2022-1343]) 821 822 *Matt Caswell* 823 824 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 825 AAD data as the MAC key. This made the MAC key trivially predictable. 826 827 An attacker could exploit this issue by performing a man-in-the-middle attack 828 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 829 that the modified data would still pass the MAC integrity check. 830 831 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 832 endpoint will always be rejected by the recipient and the connection will 833 fail at that point. Many application protocols require data to be sent from 834 the client to the server first. Therefore, in such a case, only an OpenSSL 835 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 836 837 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 838 sent in both directions. In this case both clients and servers could be 839 affected, regardless of the application protocol. 840 841 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 842 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 843 the handshake when using this ciphersuite. 844 845 The confidentiality of data is not impacted by this issue, i.e. an attacker 846 cannot decrypt data that has been encrypted using this ciphersuite - they can 847 only modify it. 848 849 In order for this attack to work both endpoints must legitimately negotiate 850 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 851 OpenSSL 3.0, and is not available within the default provider or the default 852 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 853 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 854 following must have occurred: 855 856 1) OpenSSL must have been compiled with the (non-default) compile time option 857 enable-weak-ssl-ciphers 858 859 2) OpenSSL must have had the legacy provider explicitly loaded (either 860 through application code or via configuration) 861 862 3) The ciphersuite must have been explicitly added to the ciphersuite list 863 864 4) The libssl security level must have been set to 0 (default is 1) 865 866 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 867 868 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 869 others that both endpoints have in common 870 (CVE-2022-1434) 871 872 *Matt Caswell* 873 874 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 875 occuppied by the removed hash table entries. 876 877 This function is used when decoding certificates or keys. If a long lived 878 process periodically decodes certificates or keys its memory usage will 879 expand without bounds and the process might be terminated by the operating 880 system causing a denial of service. Also traversing the empty hash table 881 entries will take increasingly more time. 882 883 Typically such long lived processes might be TLS clients or TLS servers 884 configured to accept client certificate authentication. 885 (CVE-2022-1473) 886 887 *Hugo Landau, Aliaksei Levin* 888 889 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 890 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 891 statistics are no longer supported. For compatibility, these statistics are 892 still listed in the output but are now always reported as zero. 893 894 *Hugo Landau* 895 896### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 897 898 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 899 for non-prime moduli. 900 901 Internally this function is used when parsing certificates that contain 902 elliptic curve public keys in compressed form or explicit elliptic curve 903 parameters with a base point encoded in compressed form. 904 905 It is possible to trigger the infinite loop by crafting a certificate that 906 has invalid explicit curve parameters. 907 908 Since certificate parsing happens prior to verification of the certificate 909 signature, any process that parses an externally supplied certificate may thus 910 be subject to a denial of service attack. The infinite loop can also be 911 reached when parsing crafted private keys as they can contain explicit 912 elliptic curve parameters. 913 914 Thus vulnerable situations include: 915 916 - TLS clients consuming server certificates 917 - TLS servers consuming client certificates 918 - Hosting providers taking certificates or private keys from customers 919 - Certificate authorities parsing certification requests from subscribers 920 - Anything else which parses ASN.1 elliptic curve parameters 921 922 Also any other applications that use the BN_mod_sqrt() where the attacker 923 can control the parameter values are vulnerable to this DoS issue. 924 ([CVE-2022-0778]) 925 926 *Tomáš Mráz* 927 928 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 929 to the list of ciphersuites providing Perfect Forward Secrecy as 930 required by SECLEVEL >= 3. 931 932 *Dmitry Belyavskiy, Nicola Tuveri* 933 934 * Made the AES constant time code for no-asm configurations 935 optional due to the resulting 95% performance degradation. 936 The AES constant time code can be enabled, for no assembly 937 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 938 939 *Paul Dale* 940 941 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 942 passphrase strings. 943 944 *Darshan Sen* 945 946 * The negative return value handling of the certificate verification callback 947 was reverted. The replacement is to set the verification retry state with 948 the SSL_set_retry_verify() function. 949 950 *Tomáš Mráz* 951 952### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 953 954 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 955 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 956 verify a certificate supplied by a server. That function may return a 957 negative return value to indicate an internal error (for example out of 958 memory). Such a negative return value is mishandled by OpenSSL and will cause 959 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 960 success and a subsequent call to SSL_get_error() to return the value 961 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 962 returned by OpenSSL if the application has previously called 963 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 964 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 965 totally unexpected and applications may not behave correctly as a result. The 966 exact behaviour will depend on the application but it could result in 967 crashes, infinite loops or other similar incorrect responses. 968 969 This issue is made more serious in combination with a separate bug in OpenSSL 970 3.0 that will cause X509_verify_cert() to indicate an internal error when 971 processing a certificate chain. This will occur where a certificate does not 972 include the Subject Alternative Name extension but where a Certificate 973 Authority has enforced name constraints. This issue can occur even with valid 974 chains. 975 ([CVE-2021-4044]) 976 977 *Matt Caswell* 978 979 * Corrected a few file name and file reference bugs in the build, 980 installation and setup scripts, which lead to installation verification 981 failures. Slightly enhanced the installation verification script. 982 983 *Richard Levitte* 984 985 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 986 keys. 987 988 *Richard Levitte* 989 990 * Fixed PVK encoder to properly query for the passphrase. 991 992 *Tomáš Mráz* 993 994 * Multiple fixes in the OSSL_HTTP API functions. 995 996 *David von Oheimb* 997 998 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 999 OSSL_PARAM_INTEGER data type and return error on negative numbers 1000 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 1001 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 1002 1003 *Richard Levitte* 1004 1005 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 1006 1007 *Tomáš Mráz* 1008 1009 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 1010 1011 *Allan Jude* 1012 1013 * Multiple threading fixes. 1014 1015 *Matt Caswell* 1016 1017 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 1018 1019 *Tomáš Mráz* 1020 1021 * Allow fetching an operation from the provider that owns an unexportable key 1022 as a fallback if that is still allowed by the property query. 1023 1024 *Richard Levitte* 1025 1026### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 1027 1028 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 1029 deprecated. 1030 1031 *Matt Caswell* 1032 1033 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 1034 S390X capability vector to zero. This simplifies testing of different code 1035 paths on S390X architecture. 1036 1037 *Patrick Steuer* 1038 1039 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 1040 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 1041 SP 800-38D". The communication will fail at this point. 1042 1043 *Paul Dale* 1044 1045 * The EC_GROUP_clear_free() function is deprecated as there is nothing 1046 confidential in EC_GROUP data. 1047 1048 *Nicola Tuveri* 1049 1050 * The byte order mark (BOM) character is ignored if encountered at the 1051 beginning of a PEM-formatted file. 1052 1053 *Dmitry Belyavskiy* 1054 1055 * Added CMS support for the Russian GOST algorithms. 1056 1057 *Dmitry Belyavskiy* 1058 1059 * Due to move of the implementation of cryptographic operations 1060 to the providers, validation of various operation parameters can 1061 be postponed until the actual operation is executed where previously 1062 it happened immediately when an operation parameter was set. 1063 1064 For example when setting an unsupported curve with 1065 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 1066 fail but later keygen operations with the EVP_PKEY_CTX will fail. 1067 1068 *OpenSSL team members and many third party contributors* 1069 1070 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 1071 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 1072 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 1073 instead to retrieve these algorithms from a provider. 1074 1075 *Shane Lontis* 1076 1077 * On build targets where the multilib postfix is set in the build 1078 configuration the libdir directory was changing based on whether 1079 the lib directory with the multilib postfix exists on the system 1080 or not. This unpredictable behavior was removed and eventual 1081 multilib postfix is now always added to the default libdir. Use 1082 `--libdir=lib` to override the libdir if adding the postfix is 1083 undesirable. 1084 1085 *Jan Lána* 1086 1087 * The triple DES key wrap functionality now conforms to RFC 3217 but is 1088 no longer interoperable with OpenSSL 1.1.1. 1089 1090 *Paul Dale* 1091 1092 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 1093 function codes, this function can only cause problems for calling 1094 applications. 1095 1096 *Paul Dale* 1097 1098 * Add a configurable flag to output date formats as ISO 8601. Does not 1099 change the default date format. 1100 1101 *William Edmisten* 1102 1103 * Version of MSVC earlier than 1300 could get link warnings, which could 1104 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 1105 Support for this flag has been removed. 1106 1107 *Rich Salz* 1108 1109 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 1110 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 1111 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 1112 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 1113 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 1114 1115 *Rich Salz* 1116 1117 * The signatures of the functions to get and set options on SSL and 1118 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 1119 Some source code changes may be required. 1120 1121 *Rich Salz* 1122 1123 * The public definitions of conf_method_st and conf_st have been 1124 deprecated. They will be made opaque in a future release. 1125 1126 *Rich Salz and Tomáš Mráz* 1127 1128 * Client-initiated renegotiation is disabled by default. To allow it, use 1129 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 1130 flag, or the "ClientRenegotiation" config parameter as appropriate. 1131 1132 *Rich Salz* 1133 1134 * Add "abspath" and "includedir" pragma's to config files, to prevent, 1135 or modify relative pathname inclusion. 1136 1137 *Rich Salz* 1138 1139 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 1140 validated. Please consult the README-FIPS and 1141 README-PROVIDERS files, as well as the migration guide. 1142 1143 *OpenSSL team members and many third party contributors* 1144 1145 * For the key types DH and DHX the allowed settable parameters are now different. 1146 1147 *Shane Lontis* 1148 1149 * The openssl commands that read keys, certificates, and CRLs now 1150 automatically detect the PEM or DER format of the input files. 1151 1152 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 1153 1154 * Added enhanced PKCS#12 APIs which accept a library context. 1155 1156 *Jon Spillett* 1157 1158 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 1159 1160 *Matt Caswell* 1161 1162 * Added support for Kernel TLS (KTLS). 1163 1164 *Boris Pismenny, John Baldwin and Andrew Gallatin* 1165 1166 * Support for RFC 5746 secure renegotiation is now required by default for 1167 SSL or TLS connections to succeed. 1168 1169 *Benjamin Kaduk* 1170 1171 * The signature of the `copy` functional parameter of the 1172 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 1173 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 1174 the signature of the `pub_decode` functional parameter of the 1175 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 1176 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 1177 1178 *David von Oheimb* 1179 1180 * The error return values from some control calls (ctrl) have changed. 1181 1182 *Paul Dale* 1183 1184 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 1185 1186 *Shane Lontis* 1187 1188 * Many functions in the EVP_ namespace that are getters of values from 1189 implementations or contexts were renamed to include get or get0 in their 1190 names. Old names are provided as macro aliases for compatibility and 1191 are not deprecated. 1192 1193 *Tomáš Mráz* 1194 1195 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 1196 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 1197 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 1198 are deprecated. 1199 1200 *Tomáš Mráz* 1201 1202 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 1203 more key types. 1204 1205 * The output from the command line applications may have minor 1206 changes. 1207 1208 *Paul Dale* 1209 1210 * The output from numerous "printing" may have minor changes. 1211 1212 *David von Oheimb* 1213 1214 * Windows thread synchronization uses read/write primitives (SRWLock) when 1215 supported by the OS, otherwise CriticalSection continues to be used. 1216 1217 *Vincent Drake* 1218 1219 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 1220 work on read only BIO source/sinks that do not support these functions. 1221 This allows piping or redirection of a file BIO using stdin to be buffered 1222 into memory. This is used internally in OSSL_DECODER_from_bio(). 1223 1224 *Shane Lontis* 1225 1226 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 1227 this function would return one of the values OSSL_STORE_INFO_NAME, 1228 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 1229 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 1230 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 1231 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 1232 using this function should be amended to handle the changed return value. 1233 1234 *Richard Levitte* 1235 1236 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 1237 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 1238 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 1239 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 1240 contains more than one certificate identifier: This means that all 1241 certificates referenced there MUST be part of the validation chain. 1242 1243 *David von Oheimb* 1244 1245 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 1246 RC5, DESX and DES have been moved to the legacy provider. 1247 1248 *Matt Caswell* 1249 1250 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 1251 RIPEMD-160 have been moved to the legacy provider. 1252 1253 *Matt Caswell* 1254 1255 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 1256 provided key. 1257 1258 *Dmitry Belyavskiy* 1259 1260 * The deprecated functions EVP_PKEY_get0_RSA(), 1261 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 1262 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 1263 well as the similarly named "get1" functions behave differently in 1264 OpenSSL 3.0. 1265 1266 *Matt Caswell* 1267 1268 * A number of functions handling low-level keys or engines were deprecated 1269 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 1270 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 1271 EVP_PKEY_get0_siphash(). 1272 1273 *Matt Caswell* 1274 1275 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 1276 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 1277 will need to load the legacy crypto provider. This includes these PBE 1278 algorithms which use this KDF: 1279 - NID_pbeWithMD2AndDES_CBC 1280 - NID_pbeWithMD5AndDES_CBC 1281 - NID_pbeWithSHA1AndRC2_CBC 1282 - NID_pbeWithMD2AndRC2_CBC 1283 - NID_pbeWithMD5AndRC2_CBC 1284 - NID_pbeWithSHA1AndDES_CBC 1285 1286 *Jon Spillett* 1287 1288 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 1289 BIO_debug_callback() functions. 1290 1291 *Tomáš Mráz* 1292 1293 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 1294 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 1295 1296 *Tomáš Mráz* 1297 1298 * The RAND_METHOD APIs have been deprecated. 1299 1300 *Paul Dale* 1301 1302 * The SRP APIs have been deprecated. 1303 1304 *Matt Caswell* 1305 1306 * Add a compile time option to prevent the caching of provider fetched 1307 algorithms. This is enabled by including the no-cached-fetch option 1308 at configuration time. 1309 1310 *Paul Dale* 1311 1312 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 1313 count of PKCS12_DEFAULT_ITER. 1314 1315 *Tomáš Mráz and Sahana Prasad* 1316 1317 * The openssl speed command does not use low-level API calls anymore. 1318 1319 *Tomáš Mráz* 1320 1321 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 1322 capable processors. 1323 1324 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1325 1326 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 1327 1328 *Matt Caswell* 1329 1330 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 1331 providers may supply their own group implementations (using either the "key 1332 exchange" or the "key encapsulation" methods) which will automatically be 1333 detected and used by libssl. 1334 1335 *Matt Caswell, Nicola Tuveri* 1336 1337 * The undocumented function X509_certificate_type() has been deprecated; 1338 1339 *Rich Salz* 1340 1341 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 1342 1343 *Tomáš Mráz* 1344 1345 * Removed RSA padding mode for SSLv23 (which was only used for 1346 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 1347 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 1348 `rsautl` command. 1349 1350 *Rich Salz* 1351 1352 * Deprecated the obsolete X9.31 RSA key generation related functions. 1353 1354 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 1355 is not allowed to return a value > 1, this is no more taken as failure. 1356 1357 *Viktor Dukhovni and David von Oheimb* 1358 1359 * Deprecated the obsolete X9.31 RSA key generation related functions 1360 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 1361 BN_X931_generate_prime_ex(). 1362 1363 *Tomáš Mráz* 1364 1365 * The default key generation method for the regular 2-prime RSA keys was 1366 changed to the FIPS 186-4 B.3.6 method. 1367 1368 *Shane Lontis* 1369 1370 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 1371 1372 *Kurt Roeckx* 1373 1374 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1375 1376 *Rich Salz* 1377 1378 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1379 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1380 1381 *Rich Salz, Richard Levitte, and David von Oheimb* 1382 1383 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1384 1385 *David von Oheimb* 1386 1387 * Deprecated `OCSP_parse_url()`. 1388 1389 *David von Oheimb* 1390 1391 * Validation of SM2 keys has been separated from the validation of regular EC 1392 keys. 1393 1394 *Nicola Tuveri* 1395 1396 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1397 switches: a validation failure triggers an early exit, returning a failure 1398 exit status to the parent process. 1399 1400 *Nicola Tuveri* 1401 1402 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1403 to ignore unknown ciphers. 1404 1405 *Otto Hollmann* 1406 1407 * The `-cipher-commands` and `-digest-commands` options 1408 of the command line utility `list` have been deprecated. 1409 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1410 1411 *Dmitry Belyavskiy* 1412 1413 * Added convenience functions for generating asymmetric key pairs: 1414 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1415 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1416 1417 *David von Oheimb* 1418 1419 * All of the low level EC_KEY functions have been deprecated. 1420 1421 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1422 1423 * Deprecated all the libcrypto and libssl error string loading 1424 functions. 1425 1426 *Richard Levitte* 1427 1428 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1429 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1430 deprecated. 1431 1432 *Matt Caswell* 1433 1434 * The `-crypt` option to the `passwd` command line tool has been removed. 1435 1436 *Paul Dale* 1437 1438 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1439 were removed. 1440 1441 *Rich Salz* 1442 1443 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1444 1445 *Shane Lontis* 1446 1447 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1448 EVP_PKEY_get1_tls_encodedpoint(). 1449 1450 *Matt Caswell* 1451 1452 * The security callback, which can be customised by application code, supports 1453 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1454 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1455 1456 *Matt Caswell* 1457 1458 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1459 interface. Their functionality remains unchanged. 1460 1461 *Jordan Montgomery* 1462 1463 * Added new option for 'openssl list', '-providers', which will display the 1464 list of loaded providers, their names, version and status. It optionally 1465 displays their gettable parameters. 1466 1467 *Paul Dale* 1468 1469 * Removed EVP_PKEY_set_alias_type(). 1470 1471 *Richard Levitte* 1472 1473 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1474 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1475 1476 *Jeremy Walch* 1477 1478 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1479 parameters are still checked for type safety at compile time via helper 1480 inline functions. 1481 1482 *Matt Caswell* 1483 1484 * Remove the RAND_DRBG API 1485 1486 *Paul Dale and Matthias St. Pierre* 1487 1488 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1489 as well as actual hostnames. 1490 1491 *David Woodhouse* 1492 1493 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1494 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1495 conversely, silently ignore DTLS protocol version bounds when configuring 1496 TLS-based contexts. The commands can be repeated to set bounds of both 1497 types. The same applies with the corresponding "min_protocol" and 1498 "max_protocol" command-line switches, in case some application uses both TLS 1499 and DTLS. 1500 1501 SSL_CTX instances that are created for a fixed protocol version (e.g. 1502 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1503 attempts to apply bounds to these protocol versions would result in an 1504 error. Now only the "version-flexible" SSL_CTX instances are subject to 1505 limits in configuration files in command-line options. 1506 1507 *Viktor Dukhovni* 1508 1509 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1510 going forward. 1511 1512 *Paul Dale* 1513 1514 * Reworked the recorded ERR codes to make better space for system errors. 1515 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1516 given code is a system error (true) or an OpenSSL error (false). 1517 1518 *Richard Levitte* 1519 1520 * Reworked the test perl framework to better allow parallel testing. 1521 1522 *Nicola Tuveri and David von Oheimb* 1523 1524 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1525 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1526 1527 *Shane Lontis* 1528 1529 * 'Configure' has been changed to figure out the configuration target if 1530 none is given on the command line. Consequently, the 'config' script is 1531 now only a mere wrapper. All documentation is changed to only mention 1532 'Configure'. 1533 1534 *Rich Salz and Richard Levitte* 1535 1536 * Added a library context `OSSL_LIB_CTX` that applications as well as 1537 other libraries can use to form a separate context within which 1538 libcrypto operations are performed. 1539 1540 *Richard Levitte* 1541 1542 * Added various `_ex` functions to the OpenSSL API that support using 1543 a non-default `OSSL_LIB_CTX`. 1544 1545 *OpenSSL team* 1546 1547 * Handshake now fails if Extended Master Secret extension is dropped 1548 on renegotiation. 1549 1550 *Tomáš Mráz* 1551 1552 * Dropped interactive mode from the `openssl` program. 1553 1554 *Richard Levitte* 1555 1556 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1557 1558 *David von Oheimb and Shane Lontis* 1559 1560 * Deprecated `EC_METHOD_get_field_type()`. 1561 1562 *Billy Bob Brumley* 1563 1564 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1565 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1566 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1567 1568 *Billy Bob Brumley* 1569 1570 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1571 1572 *Billy Bob Brumley* 1573 1574 * Add CAdES-BES signature verification support, mostly derived 1575 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1576 1577 *Filipe Raimundo da Silva* 1578 1579 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1580 1581 *Antonio Iacono* 1582 1583 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1584 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1585 1586 *Jakub Zelenka* 1587 1588 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1589 1590 *Billy Bob Brumley* 1591 1592 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1593 EC_KEY_precompute_mult(). 1594 1595 *Billy Bob Brumley* 1596 1597 * Deprecated EC_POINTs_mul(). 1598 1599 *Billy Bob Brumley* 1600 1601 * Removed FIPS_mode() and FIPS_mode_set(). 1602 1603 *Shane Lontis* 1604 1605 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1606 1607 *Dmitry Belyavskiy* 1608 1609 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1610 EC_POINT_get_Jprojective_coordinates_GFp(). 1611 1612 *Billy Bob Brumley* 1613 1614 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1615 arrays to be more easily constructed via a series of utility functions. 1616 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1617 the various push functions and finally convert to a passable OSSL_PARAM 1618 array using OSSL_PARAM_BLD_to_param(). 1619 1620 *Paul Dale* 1621 1622 * The security strength of SHA1 and MD5 based signatures in TLS has been 1623 reduced. 1624 1625 *Kurt Roeckx* 1626 1627 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1628 contain a provider side internal key. 1629 1630 *Richard Levitte* 1631 1632 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1633 1634 *Richard Levitte* 1635 1636 * Project text documents not yet having a proper file name extension 1637 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1638 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1639 1640 *David von Oheimb* 1641 1642 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1643 have been converted to Markdown with the goal to produce documents 1644 which not only look pretty when viewed online in the browser, but 1645 remain well readable inside a plain text editor. 1646 1647 To achieve this goal, a 'minimalistic' Markdown style has been applied 1648 which avoids formatting elements that interfere too much with the 1649 reading flow in the text file. For example, it 1650 1651 * avoids [ATX headings][] and uses [setext headings][] instead 1652 (which works for `<h1>` and `<h2>` headings only). 1653 * avoids [inline links][] and uses [reference links][] instead. 1654 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1655 1656 [ATX headings]: https://github.github.com/gfm/#atx-headings 1657 [setext headings]: https://github.github.com/gfm/#setext-headings 1658 [inline links]: https://github.github.com/gfm/#inline-link 1659 [reference links]: https://github.github.com/gfm/#reference-link 1660 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1661 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1662 1663 *Matthias St. Pierre* 1664 1665 * The test suite is changed to preserve results of each test recipe. 1666 A new directory test-runs/ with subdirectories named like the 1667 test recipes are created in the build tree for this purpose. 1668 1669 *Richard Levitte* 1670 1671 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1672 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1673 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1674 1675 *David von Oheimb, Martin Peylo* 1676 1677 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1678 It supports arbitrary request and response content types, GET redirection, 1679 TLS, connections via HTTP(S) proxies, connections and exchange via 1680 user-defined BIOs (allowing implicit connections), persistent connections, 1681 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1682 The legacy OCSP-focused (and only partly documented) API 1683 is retained for backward compatibility, while most of it is deprecated. 1684 1685 *David von Oheimb* 1686 1687 * Added `util/check-format.pl`, a tool for checking adherence to the 1688 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1689 The checks performed are incomplete and yield some false positives. 1690 Still the tool should be useful for detecting most typical glitches. 1691 1692 *David von Oheimb* 1693 1694 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1695 If domain name resolution yields multiple IP addresses all of them are tried 1696 after `connect()` failures. 1697 1698 *David von Oheimb* 1699 1700 * All of the low level RSA functions have been deprecated. 1701 1702 *Paul Dale* 1703 1704 * X509 certificates signed using SHA1 are no longer allowed at security 1705 level 1 and above. 1706 1707 *Kurt Roeckx* 1708 1709 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1710 modified to use PKEY APIs. These commands are now in maintenance mode 1711 and no new features will be added to them. 1712 1713 *Paul Dale* 1714 1715 * The command line utility rsautl has been deprecated. 1716 1717 *Paul Dale* 1718 1719 * The command line utilities genrsa and rsa have been modified to use PKEY 1720 APIs. They now write PKCS#8 keys by default. These commands are now in 1721 maintenance mode and no new features will be added to them. 1722 1723 *Paul Dale* 1724 1725 * All of the low level DH functions have been deprecated. 1726 1727 *Paul Dale and Matt Caswell* 1728 1729 * All of the low level DSA functions have been deprecated. 1730 1731 *Paul Dale* 1732 1733 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1734 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1735 1736 *Richard Levitte* 1737 1738 * Deprecated low level ECDH and ECDSA functions. 1739 1740 *Paul Dale* 1741 1742 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1743 1744 *Richard Levitte* 1745 1746 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1747 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1748 a new formulation to include all the things it can be used for, 1749 as well as words of caution. 1750 1751 *Richard Levitte* 1752 1753 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1754 1755 *Paul Dale* 1756 1757 * All of the low level HMAC functions have been deprecated. 1758 1759 *Paul Dale and David von Oheimb* 1760 1761 * Over two thousand fixes were made to the documentation, including: 1762 - Common options (such as -rand/-writerand, TLS version control, etc) 1763 were refactored and point to newly-enhanced descriptions in openssl.pod. 1764 - Added style conformance for all options (with help from Richard Levitte), 1765 documented all reported missing options, added a CI build to check 1766 that all options are documented and that no unimplemented options 1767 are documented. 1768 - Documented some internals, such as all use of environment variables. 1769 - Addressed all internal broken L<> references. 1770 1771 *Rich Salz* 1772 1773 * All of the low level CMAC functions have been deprecated. 1774 1775 *Paul Dale* 1776 1777 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1778 functions have been deprecated. 1779 1780 *Paul Dale and David von Oheimb* 1781 1782 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1783 set of functions. The documentation mentioned negative values for some 1784 errors, but this was never the case, so the mention of negative values 1785 was removed. 1786 1787 Code that followed the documentation and thereby check with something 1788 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1789 1790 *Richard Levitte* 1791 1792 * All of the low level cipher functions have been deprecated. 1793 1794 *Matt Caswell and Paul Dale* 1795 1796 * Removed include/openssl/opensslconf.h.in and replaced it with 1797 include/openssl/configuration.h.in, which differs in not including 1798 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1799 was added to include both. 1800 1801 This allows internal hacks where one might need to modify the set 1802 of configured macros, for example this if deprecated symbols are 1803 still supposed to be available internally: 1804 1805 #include <openssl/configuration.h> 1806 1807 #undef OPENSSL_NO_DEPRECATED 1808 #define OPENSSL_SUPPRESS_DEPRECATED 1809 1810 #include <openssl/macros.h> 1811 1812 This should not be used by applications that use the exported 1813 symbols, as that will lead to linking errors. 1814 1815 *Richard Levitte* 1816 1817 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1818 used in exponentiation with 512-bit moduli. No EC algorithms are 1819 affected. Analysis suggests that attacks against 2-prime RSA1024, 1820 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1821 difficult to perform and are not believed likely. Attacks against DH512 1822 are considered just feasible. However, for an attack the target would 1823 have to re-use the DH512 private key, which is not recommended anyway. 1824 Also applications directly using the low-level API BN_mod_exp may be 1825 affected if they use BN_FLG_CONSTTIME. 1826 ([CVE-2019-1551]) 1827 1828 *Andy Polyakov* 1829 1830 * Most memory-debug features have been deprecated, and the functionality 1831 replaced with no-ops. 1832 1833 *Rich Salz* 1834 1835 * Added documentation for the STACK API. 1836 1837 *Rich Salz* 1838 1839 * Introduced a new method type and API, OSSL_ENCODER, to represent 1840 generic encoders. These do the same sort of job that PEM writers 1841 and d2i functions do, but with support for methods supplied by 1842 providers, and the possibility for providers to support other 1843 formats as well. 1844 1845 *Richard Levitte* 1846 1847 * Introduced a new method type and API, OSSL_DECODER, to represent 1848 generic decoders. These do the same sort of job that PEM readers 1849 and i2d functions do, but with support for methods supplied by 1850 providers, and the possibility for providers to support other 1851 formats as well. 1852 1853 *Richard Levitte* 1854 1855 * Added a .pragma directive to the syntax of configuration files, to 1856 allow varying behavior in a supported and predictable manner. 1857 Currently added pragma: 1858 1859 .pragma dollarid:on 1860 1861 This allows dollar signs to be a keyword character unless it's 1862 followed by a opening brace or parenthesis. This is useful for 1863 platforms where dollar signs are commonly used in names, such as 1864 volume names and system directory names on VMS. 1865 1866 *Richard Levitte* 1867 1868 * Added functionality to create an EVP_PKEY from user data. 1869 1870 *Richard Levitte* 1871 1872 * Change the interpretation of the '--api' configuration option to 1873 mean that this is a desired API compatibility level with no 1874 further meaning. The previous interpretation, that this would 1875 also mean to remove all deprecated symbols up to and including 1876 the given version, no requires that 'no-deprecated' is also used 1877 in the configuration. 1878 1879 When building applications, the desired API compatibility level 1880 can be set with the OPENSSL_API_COMPAT macro like before. For 1881 API compatibility version below 3.0, the old style numerical 1882 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1883 For version 3.0 and on, the value is expected to be the decimal 1884 value calculated from the major and minor version like this: 1885 1886 MAJOR * 10000 + MINOR * 100 1887 1888 Examples: 1889 1890 -DOPENSSL_API_COMPAT=30000 For 3.0 1891 -DOPENSSL_API_COMPAT=30200 For 3.2 1892 1893 To hide declarations that are deprecated up to and including the 1894 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1895 given when building the application as well. 1896 1897 *Richard Levitte* 1898 1899 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1900 access to certificate and CRL stores via URIs and OSSL_STORE 1901 loaders. 1902 1903 This adds the following functions: 1904 1905 - X509_LOOKUP_store() 1906 - X509_STORE_load_file() 1907 - X509_STORE_load_path() 1908 - X509_STORE_load_store() 1909 - SSL_add_store_cert_subjects_to_stack() 1910 - SSL_CTX_set_default_verify_store() 1911 - SSL_CTX_load_verify_file() 1912 - SSL_CTX_load_verify_dir() 1913 - SSL_CTX_load_verify_store() 1914 1915 *Richard Levitte* 1916 1917 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1918 The presence of this system service is determined at run-time. 1919 1920 *Richard Levitte* 1921 1922 * Added functionality to create an EVP_PKEY context based on data 1923 for methods from providers. This takes an algorithm name and a 1924 property query string and simply stores them, with the intent 1925 that any operation that uses this context will use those strings 1926 to fetch the needed methods implicitly, thereby making the port 1927 of application written for pre-3.0 OpenSSL easier. 1928 1929 *Richard Levitte* 1930 1931 * The undocumented function NCONF_WIN32() has been deprecated; for 1932 conversion details see the HISTORY section of doc/man5/config.pod 1933 1934 *Rich Salz* 1935 1936 * Introduced the new functions EVP_DigestSignInit_ex() and 1937 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1938 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1939 pages for further details. 1940 1941 *Matt Caswell* 1942 1943 * Over two thousand fixes were made to the documentation, including: 1944 adding missing command flags, better style conformance, documentation 1945 of internals, etc. 1946 1947 *Rich Salz, Richard Levitte* 1948 1949 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1950 X25519, X448, Ed25519 and Ed448. 1951 1952 *Patrick Steuer* 1953 1954 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1955 the first value. 1956 1957 *Jon Spillett* 1958 1959 * Deprecated the public definition of `ERR_STATE` as well as the function 1960 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1961 opaque type. 1962 1963 *Richard Levitte* 1964 1965 * Added ERR functionality to give callers access to the stored function 1966 names that have replaced the older function code based functions. 1967 1968 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1969 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1970 ERR_peek_error_all() and ERR_peek_last_error_all(). 1971 1972 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1973 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1974 ERR_func_error_string(). 1975 1976 *Richard Levitte* 1977 1978 * Extended testing to be verbose for failing tests only. The make variables 1979 VERBOSE_FAILURE or VF can be used to enable this: 1980 1981 $ make VF=1 test # Unix 1982 $ mms /macro=(VF=1) test ! OpenVMS 1983 $ nmake VF=1 test # Windows 1984 1985 *Richard Levitte* 1986 1987 * Added the `-copy_extensions` option to the `x509` command for use with 1988 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1989 all extensions in the request are copied to the certificate or vice versa. 1990 1991 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1992 1993 * Added the `-copy_extensions` option to the `req` command for use with 1994 `-x509`. When given with the `copy` or `copyall` argument, 1995 all extensions in the certification request are copied to the certificate. 1996 1997 *David von Oheimb* 1998 1999 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 2000 they generate are by default RFC 5280 compliant in the following sense: 2001 There is a subjectKeyIdentifier extension with a hash value of the public key 2002 and for not self-signed certs there is an authorityKeyIdentifier extension 2003 with a keyIdentifier field or issuer information identifying the signing key. 2004 This is done unless some configuration overrides the new default behavior, 2005 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 2006 2007 *David von Oheimb* 2008 2009 * Added several checks to `X509_verify_cert()` according to requirements in 2010 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 2011 (which may be done by using the CLI option `-x509_strict`): 2012 * The basicConstraints of CA certificates must be marked critical. 2013 * CA certificates must explicitly include the keyUsage extension. 2014 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 2015 * The issuer name of any certificate must not be empty. 2016 * The subject name of CA certs, certs with keyUsage crlSign, 2017 and certs without subjectAlternativeName must not be empty. 2018 * If a subjectAlternativeName extension is given it must not be empty. 2019 * The signatureAlgorithm field and the cert signature must be consistent. 2020 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 2021 must not be marked critical. 2022 * The authorityKeyIdentifier must be given for X.509v3 certs 2023 unless they are self-signed. 2024 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 2025 2026 *David von Oheimb* 2027 2028 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 2029 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 2030 2031 *Tomáš Mráz* 2032 2033 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2034 used even when parsing explicit parameters, when loading a encoded key 2035 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2036 `EC_GROUP_new_from_ecparameters()`. 2037 This prevents bypass of security hardening and performance gains, 2038 especially for curves with specialized EC_METHODs. 2039 By default, if a key encoded with explicit parameters is loaded and later 2040 encoded, the output is still encoded with explicit parameters, even if 2041 internally a "named" EC_GROUP is used for computation. 2042 2043 *Nicola Tuveri* 2044 2045 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2046 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2047 NULL. After this change, only the cofactor parameter can be NULL. It also 2048 does some minimal sanity checks on the passed order. 2049 ([CVE-2019-1547]) 2050 2051 *Billy Bob Brumley* 2052 2053 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2054 An attack is simple, if the first CMS_recipientInfo is valid but the 2055 second CMS_recipientInfo is chosen ciphertext. If the second 2056 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2057 encryption key will be replaced by garbage, and the message cannot be 2058 decoded, but if the RSA decryption fails, the correct encryption key is 2059 used and the recipient will not notice the attack. 2060 As a work around for this potential attack the length of the decrypted 2061 key must be equal to the cipher default key length, in case the 2062 certifiate is not given and all recipientInfo are tried out. 2063 The old behaviour can be re-enabled in the CMS code by setting the 2064 CMS_DEBUG_DECRYPT flag. 2065 2066 *Bernd Edlinger* 2067 2068 * Early start up entropy quality from the DEVRANDOM seed source has been 2069 improved for older Linux systems. The RAND subsystem will wait for 2070 /dev/random to be producing output before seeding from /dev/urandom. 2071 The seeded state is stored for future library initialisations using 2072 a system global shared memory segment. The shared memory identifier 2073 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2074 the desired value. The default identifier is 114. 2075 2076 *Paul Dale* 2077 2078 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 2079 when primes for RSA keys are computed. 2080 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2081 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2082 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 2083 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2084 This avoids possible fingerprinting of newly generated RSA modules. 2085 2086 *Bernd Edlinger* 2087 2088 * Correct the extended master secret constant on EBCDIC systems. Without this 2089 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2090 negotiate EMS will fail. Unfortunately this also means that TLS connections 2091 between EBCDIC systems with this fix, and EBCDIC systems without this 2092 fix will fail if they negotiate EMS. 2093 2094 *Matt Caswell* 2095 2096 * Changed the library initialisation so that the config file is now loaded 2097 by default. This was already the case for libssl. It now occurs for both 2098 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 2099 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 2100 2101 *Matt Caswell* 2102 2103 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 2104 where the former acts as a replacement for `ERR_put_error()`, and the 2105 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 2106 `ERR_raise_data()` adds more flexibility by taking a format string and 2107 an arbitrary number of arguments following it, to be processed with 2108 `BIO_snprintf()`. 2109 2110 *Richard Levitte* 2111 2112 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 2113 to check if a named provider is loaded and available. When called, it 2114 will also activate all fallback providers if such are still present. 2115 2116 *Richard Levitte* 2117 2118 * Enforce a minimum DH modulus size of 512 bits. 2119 2120 *Bernd Edlinger* 2121 2122 * Changed DH parameters to generate the order q subgroup instead of 2q. 2123 Previously generated DH parameters are still accepted by DH_check 2124 but DH_generate_key works around that by clearing bit 0 of the 2125 private key for those. This avoids leaking bit 0 of the private key. 2126 2127 *Bernd Edlinger* 2128 2129 * Significantly reduce secure memory usage by the randomness pools. 2130 2131 *Paul Dale* 2132 2133 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 2134 deprecated. 2135 2136 *Rich Salz* 2137 2138 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 2139 algorithms. An implementation of a key exchange algorithm can be obtained 2140 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 2141 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 2142 the older EVP_PKEY_derive_init() function. See the man pages for the new 2143 functions for further details. 2144 2145 *Matt Caswell* 2146 2147 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 2148 2149 *Matt Caswell* 2150 2151 * Removed the function names from error messages and deprecated the 2152 xxx_F_xxx define's. 2153 2154 *Richard Levitte* 2155 2156 * Removed NextStep support and the macro OPENSSL_UNISTD 2157 2158 *Rich Salz* 2159 2160 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 2161 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 2162 Also removed "export var as function" capability; we do not export 2163 variables, only functions. 2164 2165 *Rich Salz* 2166 2167 * RC5_32_set_key has been changed to return an int type, with 0 indicating 2168 an error and 1 indicating success. In previous versions of OpenSSL this 2169 was a void type. If a key was set longer than the maximum possible this 2170 would crash. 2171 2172 *Matt Caswell* 2173 2174 * Support SM2 signing and verification schemes with X509 certificate. 2175 2176 *Paul Yang* 2177 2178 * Use SHA256 as the default digest for TS query in the `ts` app. 2179 2180 *Tomáš Mráz* 2181 2182 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 2183 2184 *Shane Lontis* 2185 2186 * Default cipher lists/suites are now available via a function, the 2187 #defines are deprecated. 2188 2189 *Todd Short* 2190 2191 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 2192 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 2193 for Windows Store apps easier. Also, the "no-uplink" option has been added. 2194 2195 *Kenji Mouri* 2196 2197 * Join the directories crypto/x509 and crypto/x509v3 2198 2199 *Richard Levitte* 2200 2201 * Added command 'openssl kdf' that uses the EVP_KDF API. 2202 2203 *Shane Lontis* 2204 2205 * Added command 'openssl mac' that uses the EVP_MAC API. 2206 2207 *Shane Lontis* 2208 2209 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 2210 as default directories. Also added the command 'openssl info' 2211 for scripting purposes. 2212 2213 *Richard Levitte* 2214 2215 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 2216 deprecated. 2217 2218 *Matt Caswell* 2219 2220 * Add prediction resistance to the DRBG reseeding process. 2221 2222 *Paul Dale* 2223 2224 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 2225 mandated by IEEE Std 1619-2018. 2226 2227 *Paul Dale* 2228 2229 * Added newline escaping functionality to a filename when using openssl dgst. 2230 This output format is to replicate the output format found in the `*sum` 2231 checksum programs. This aims to preserve backward compatibility. 2232 2233 *Matt Eaton, Richard Levitte, and Paul Dale* 2234 2235 * Removed the heartbeat message in DTLS feature, as it has very 2236 little usage and doesn't seem to fulfill a valuable purpose. 2237 The configuration option is now deprecated. 2238 2239 *Richard Levitte* 2240 2241 * Changed the output of 'openssl {digestname} < file' to display the 2242 digest name in its output. 2243 2244 *Richard Levitte* 2245 2246 * Added a new generic trace API which provides support for enabling 2247 instrumentation through trace output. 2248 2249 *Richard Levitte & Matthias St. Pierre* 2250 2251 * Added build tests for C++. These are generated files that only do one 2252 thing, to include one public OpenSSL head file each. This tests that 2253 the public header files can be usefully included in a C++ application. 2254 2255 This test isn't enabled by default. It can be enabled with the option 2256 'enable-buildtest-c++'. 2257 2258 *Richard Levitte* 2259 2260 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 2261 2262 *Robbie Harwood* 2263 2264 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 2265 2266 *Simo Sorce* 2267 2268 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 2269 2270 *Shane Lontis* 2271 2272 * Added KMAC to EVP_MAC. 2273 2274 *Shane Lontis* 2275 2276 * Added property based algorithm implementation selection framework to 2277 the core. 2278 2279 *Paul Dale* 2280 2281 * Added SCA hardening for modular field inversion in EC_GROUP through 2282 a new dedicated field_inv() pointer in EC_METHOD. 2283 This also addresses a leakage affecting conversions from projective 2284 to affine coordinates. 2285 2286 *Billy Bob Brumley, Nicola Tuveri* 2287 2288 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 2289 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 2290 those algorithms that were already supported through the EVP_PKEY API 2291 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 2292 and scrypt are now wrappers that call EVP_KDF. 2293 2294 *David Makepeace* 2295 2296 * Build devcrypto engine as a dynamic engine. 2297 2298 *Eneas U de Queiroz* 2299 2300 * Add keyed BLAKE2 to EVP_MAC. 2301 2302 *Antoine Salon* 2303 2304 * Fix a bug in the computation of the endpoint-pair shared secret used 2305 by DTLS over SCTP. This breaks interoperability with older versions 2306 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 2307 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 2308 interoperability with such broken implementations. However, enabling 2309 this switch breaks interoperability with correct implementations. 2310 2311 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 2312 re-used X509_PUBKEY object if the second PUBKEY is malformed. 2313 2314 *Bernd Edlinger* 2315 2316 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 2317 2318 *Richard Levitte* 2319 2320 * Changed the license to the Apache License v2.0. 2321 2322 *Richard Levitte* 2323 2324 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 2325 2326 - Major releases (indicated by incrementing the MAJOR release number) 2327 may introduce incompatible API/ABI changes. 2328 - Minor releases (indicated by incrementing the MINOR release number) 2329 may introduce new features but retain API/ABI compatibility. 2330 - Patch releases (indicated by incrementing the PATCH number) 2331 are intended for bug fixes and other improvements of existing 2332 features only (like improving performance or adding documentation) 2333 and retain API/ABI compatibility. 2334 2335 *Richard Levitte* 2336 2337 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 2338 2339 *Todd Short* 2340 2341 * Remove the 'dist' target and add a tarball building script. The 2342 'dist' target has fallen out of use, and it shouldn't be 2343 necessary to configure just to create a source distribution. 2344 2345 *Richard Levitte* 2346 2347 * Recreate the OS390-Unix config target. It no longer relies on a 2348 special script like it did for OpenSSL pre-1.1.0. 2349 2350 *Richard Levitte* 2351 2352 * Instead of having the source directories listed in Configure, add 2353 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 2354 look into. 2355 2356 *Richard Levitte* 2357 2358 * Add GMAC to EVP_MAC. 2359 2360 *Paul Dale* 2361 2362 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 2363 2364 *Richard Levitte* 2365 2366 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 2367 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 2368 to facilitate the continued use of MACs through raw private keys in 2369 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 2370 2371 *Richard Levitte* 2372 2373 * Deprecate ECDH_KDF_X9_62(). 2374 2375 *Antoine Salon* 2376 2377 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2378 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2379 are retained for backwards compatibility. 2380 2381 *Antoine Salon* 2382 2383 * AES-XTS mode now enforces that its two keys are different to mitigate 2384 the attacked described in "Efficient Instantiations of Tweakable 2385 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2386 Details of this attack can be obtained from: 2387 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2388 2389 *Paul Dale* 2390 2391 * Rename the object files, i.e. give them other names than in previous 2392 versions. Their names now include the name of the final product, as 2393 well as its type mnemonic (bin, lib, shlib). 2394 2395 *Richard Levitte* 2396 2397 * Added new option for 'openssl list', '-objects', which will display the 2398 list of built in objects, i.e. OIDs with names. 2399 2400 *Richard Levitte* 2401 2402 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2403 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2404 be set explicitly. 2405 2406 *Chris Novakovic* 2407 2408 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2409 improves application performance by removing data copies and providing 2410 applications with zero-copy system calls such as sendfile and splice. 2411 2412 *Boris Pismenny* 2413 2414 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2415 2416 *Martin Elshuber* 2417 2418 * `PKCS12_parse` now maintains the order of the parsed certificates 2419 when outputting them via `*ca` (rather than reversing it). 2420 2421 *David von Oheimb* 2422 2423 * Deprecated pthread fork support methods. 2424 2425 *Randall S. Becker* 2426 2427 * Added support for FFDHE key exchange in TLS 1.3. 2428 2429 *Raja Ashok* 2430 2431 * Added a new concept for OpenSSL plugability: providers. This 2432 functionality is designed to replace the ENGINE API and ENGINE 2433 implementations, and to be much more dynamic, allowing provider 2434 authors to introduce new algorithms among other things, as long as 2435 there's an API that supports the algorithm type. 2436 2437 With this concept comes a new core API for interaction between 2438 libcrypto and provider implementations. Public libcrypto functions 2439 that want to use providers do so through this core API. 2440 2441 The main documentation for this core API is found in 2442 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2443 refer to other manuals describing the API specific for supported 2444 algorithm types (also called operations). 2445 2446 *The OpenSSL team* 2447 2448OpenSSL 1.1.1 2449------------- 2450 2451### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2452 2453 * Avoid loading of a dynamic engine twice. 2454 2455 *Bernd Edlinger* 2456 2457 * Prioritise DANE TLSA issuer certs over peer certs 2458 2459 *Viktor Dukhovni* 2460 2461 * Fixed random API for MacOS prior to 10.12 2462 2463 These MacOS versions don't support the CommonCrypto APIs 2464 2465 *Lenny Primak* 2466 2467### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2468 2469 * Fixed an SM2 Decryption Buffer Overflow. 2470 2471 In order to decrypt SM2 encrypted data an application is expected to 2472 call the API function EVP_PKEY_decrypt(). Typically an application will 2473 call this function twice. The first time, on entry, the "out" parameter 2474 can be NULL and, on exit, the "outlen" parameter is populated with the 2475 buffer size required to hold the decrypted plaintext. The application 2476 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2477 again, but this time passing a non-NULL value for the "out" parameter. 2478 2479 A bug in the implementation of the SM2 decryption code means that the 2480 calculation of the buffer size required to hold the plaintext returned 2481 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2482 size required by the second call. This can lead to a buffer overflow 2483 when EVP_PKEY_decrypt() is called by the application a second time with 2484 a buffer that is too small. 2485 2486 A malicious attacker who is able present SM2 content for decryption to 2487 an application could cause attacker chosen data to overflow the buffer 2488 by up to a maximum of 62 bytes altering the contents of other data held 2489 after the buffer, possibly changing application behaviour or causing 2490 the application to crash. The location of the buffer is application 2491 dependent but is typically heap allocated. 2492 ([CVE-2021-3711]) 2493 2494 *Matt Caswell* 2495 2496 * Fixed various read buffer overruns processing ASN.1 strings 2497 2498 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2499 structure which contains a buffer holding the string data and a field 2500 holding the buffer length. This contrasts with normal C strings which 2501 are repesented as a buffer for the string data which is terminated 2502 with a NUL (0) byte. 2503 2504 Although not a strict requirement, ASN.1 strings that are parsed using 2505 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2506 well as any string whose value has been set with the ASN1_STRING_set() 2507 function will additionally NUL terminate the byte array in the 2508 ASN1_STRING structure. 2509 2510 However, it is possible for applications to directly construct valid 2511 ASN1_STRING structures which do not NUL terminate the byte array by 2512 directly setting the "data" and "length" fields in the ASN1_STRING 2513 array. This can also happen by using the ASN1_STRING_set0() function. 2514 2515 Numerous OpenSSL functions that print ASN.1 data have been found to 2516 assume that the ASN1_STRING byte array will be NUL terminated, even 2517 though this is not guaranteed for strings that have been directly 2518 constructed. Where an application requests an ASN.1 structure to be 2519 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2520 been directly constructed by the application without NUL terminating 2521 the "data" field, then a read buffer overrun can occur. 2522 2523 The same thing can also occur during name constraints processing 2524 of certificates (for example if a certificate has been directly 2525 constructed by the application instead of loading it via the OpenSSL 2526 parsing functions, and the certificate contains non NUL terminated 2527 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2528 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2529 2530 If a malicious actor can cause an application to directly construct an 2531 ASN1_STRING and then process it through one of the affected OpenSSL 2532 functions then this issue could be hit. This might result in a crash 2533 (causing a Denial of Service attack). It could also result in the 2534 disclosure of private memory contents (such as private keys, or 2535 sensitive plaintext). 2536 ([CVE-2021-3712]) 2537 2538 *Matt Caswell* 2539 2540### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2541 2542 * Fixed a problem with verifying a certificate chain when using the 2543 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2544 the certificates present in a certificate chain. It is not set by default. 2545 2546 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2547 the chain that have explicitly encoded elliptic curve parameters was added 2548 as an additional strict check. 2549 2550 An error in the implementation of this check meant that the result of a 2551 previous check to confirm that certificates in the chain are valid CA 2552 certificates was overwritten. This effectively bypasses the check 2553 that non-CA certificates must not be able to issue other certificates. 2554 2555 If a "purpose" has been configured then there is a subsequent opportunity 2556 for checks that the certificate is a valid CA. All of the named "purpose" 2557 values implemented in libcrypto perform this check. Therefore, where 2558 a purpose is set the certificate chain will still be rejected even when the 2559 strict flag has been used. A purpose is set by default in libssl client and 2560 server certificate verification routines, but it can be overridden or 2561 removed by an application. 2562 2563 In order to be affected, an application must explicitly set the 2564 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2565 for the certificate verification or, in the case of TLS client or server 2566 applications, override the default purpose. 2567 ([CVE-2021-3450]) 2568 2569 *Tomáš Mráz* 2570 2571 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2572 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2573 renegotiation ClientHello omits the signature_algorithms extension (where it 2574 was present in the initial ClientHello), but includes a 2575 signature_algorithms_cert extension then a NULL pointer dereference will 2576 result, leading to a crash and a denial of service attack. 2577 2578 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2579 (which is the default configuration). OpenSSL TLS clients are not impacted by 2580 this issue. 2581 ([CVE-2021-3449]) 2582 2583 *Peter Kästle and Samuel Sapalski* 2584 2585### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2586 2587 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2588 create a unique hash value based on the issuer and serial number data 2589 contained within an X509 certificate. However it was failing to correctly 2590 handle any errors that may occur while parsing the issuer field (which might 2591 occur if the issuer field is maliciously constructed). This may subsequently 2592 result in a NULL pointer deref and a crash leading to a potential denial of 2593 service attack. 2594 ([CVE-2021-23841]) 2595 2596 *Matt Caswell* 2597 2598 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2599 padding mode to correctly check for rollback attacks. This is considered a 2600 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2601 CVE-2021-23839. 2602 2603 *Matt Caswell* 2604 2605 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2606 functions. Previously they could overflow the output length argument in some 2607 cases where the input length is close to the maximum permissable length for 2608 an integer on the platform. In such cases the return value from the function 2609 call would be 1 (indicating success), but the output length value would be 2610 negative. This could cause applications to behave incorrectly or crash. 2611 ([CVE-2021-23840]) 2612 2613 *Matt Caswell* 2614 2615 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2616 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2617 could be exploited in a side channel attack to recover the password. Since 2618 the attack is local host only this is outside of the current OpenSSL 2619 threat model and therefore no CVE is assigned. 2620 2621 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2622 issue. 2623 2624 *Matt Caswell* 2625 2626### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2627 2628 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2629 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2630 If an attacker can control both items being compared then this could lead 2631 to a possible denial of service attack. OpenSSL itself uses the 2632 GENERAL_NAME_cmp function for two purposes: 2633 1) Comparing CRL distribution point names between an available CRL and a 2634 CRL distribution point embedded in an X509 certificate 2635 2) When verifying that a timestamp response token signer matches the 2636 timestamp authority name (exposed via the API functions 2637 TS_RESP_verify_response and TS_RESP_verify_token) 2638 ([CVE-2020-1971]) 2639 2640 *Matt Caswell* 2641 2642### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2643 2644 * Certificates with explicit curve parameters are now disallowed in 2645 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2646 2647 *Tomáš Mráz* 2648 2649 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2650 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2651 conversely, silently ignore DTLS protocol version bounds when configuring 2652 TLS-based contexts. The commands can be repeated to set bounds of both 2653 types. The same applies with the corresponding "min_protocol" and 2654 "max_protocol" command-line switches, in case some application uses both TLS 2655 and DTLS. 2656 2657 SSL_CTX instances that are created for a fixed protocol version (e.g. 2658 TLSv1_server_method()) also silently ignore version bounds. Previously 2659 attempts to apply bounds to these protocol versions would result in an 2660 error. Now only the "version-flexible" SSL_CTX instances are subject to 2661 limits in configuration files in command-line options. 2662 2663 *Viktor Dukhovni* 2664 2665 * Handshake now fails if Extended Master Secret extension is dropped 2666 on renegotiation. 2667 2668 *Tomáš Mráz* 2669 2670 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2671 2672### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2673 2674 * Fixed segmentation fault in SSL_check_chain() 2675 Server or client applications that call the SSL_check_chain() function 2676 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2677 dereference as a result of incorrect handling of the 2678 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2679 or unrecognised signature algorithm is received from the peer. This could 2680 be exploited by a malicious peer in a Denial of Service attack. 2681 ([CVE-2020-1967]) 2682 2683 *Benjamin Kaduk* 2684 2685 * Added AES consttime code for no-asm configurations 2686 an optional constant time support for AES was added 2687 when building openssl for no-asm. 2688 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2689 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2690 At this time this feature is by default disabled. 2691 It will be enabled by default in 3.0. 2692 2693 *Bernd Edlinger* 2694 2695### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2696 2697 * Revert the change of EOF detection while reading in libssl to avoid 2698 regressions in applications depending on the current way of reporting 2699 the EOF. As the existing method is not fully accurate the change to 2700 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2701 branch and will be present in the 3.0 release. 2702 2703 *Tomáš Mráz* 2704 2705 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2706 when primes for RSA keys are computed. 2707 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2708 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2709 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2710 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2711 This avoids possible fingerprinting of newly generated RSA modules. 2712 2713 *Bernd Edlinger* 2714 2715### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2716 2717 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2718 while reading in libssl then we would report an error back to the 2719 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2720 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2721 therefore give a hint as to what went wrong. 2722 2723 *Matt Caswell* 2724 2725 * Check that ed25519 and ed448 are allowed by the security level. Previously 2726 signature algorithms not using an MD were not being checked that they were 2727 allowed by the security level. 2728 2729 *Kurt Roeckx* 2730 2731 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2732 was not quite right. The behaviour was not consistent between resumption 2733 and normal handshakes, and also not quite consistent with historical 2734 behaviour. The behaviour in various scenarios has been clarified and 2735 it has been updated to make it match historical behaviour as closely as 2736 possible. 2737 2738 *Matt Caswell* 2739 2740 * *[VMS only]* The header files that the VMS compilers include automatically, 2741 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2742 that the C++ compiler doesn't understand. This is a shortcoming in the 2743 compiler, but can be worked around with `__cplusplus` guards. 2744 2745 C++ applications that use OpenSSL libraries must be compiled using the 2746 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2747 functions. Otherwise, only functions with symbols of less than 31 2748 characters can be used, as the linker will not be able to successfully 2749 resolve symbols with longer names. 2750 2751 *Richard Levitte* 2752 2753 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2754 The presence of this system service is determined at run-time. 2755 2756 *Richard Levitte* 2757 2758 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2759 the first value. 2760 2761 *Jon Spillett* 2762 2763### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2764 2765 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2766 number generator (RNG). This was intended to include protection in the 2767 event of a fork() system call in order to ensure that the parent and child 2768 processes did not share the same RNG state. However this protection was not 2769 being used in the default case. 2770 2771 A partial mitigation for this issue is that the output from a high 2772 precision timer is mixed into the RNG state so the likelihood of a parent 2773 and child process sharing state is significantly reduced. 2774 2775 If an application already calls OPENSSL_init_crypto() explicitly using 2776 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2777 ([CVE-2019-1549]) 2778 2779 *Matthias St. Pierre* 2780 2781 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2782 used even when parsing explicit parameters, when loading a encoded key 2783 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2784 `EC_GROUP_new_from_ecparameters()`. 2785 This prevents bypass of security hardening and performance gains, 2786 especially for curves with specialized EC_METHODs. 2787 By default, if a key encoded with explicit parameters is loaded and later 2788 encoded, the output is still encoded with explicit parameters, even if 2789 internally a "named" EC_GROUP is used for computation. 2790 2791 *Nicola Tuveri* 2792 2793 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2794 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2795 NULL. After this change, only the cofactor parameter can be NULL. It also 2796 does some minimal sanity checks on the passed order. 2797 ([CVE-2019-1547]) 2798 2799 *Billy Bob Brumley* 2800 2801 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2802 An attack is simple, if the first CMS_recipientInfo is valid but the 2803 second CMS_recipientInfo is chosen ciphertext. If the second 2804 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2805 encryption key will be replaced by garbage, and the message cannot be 2806 decoded, but if the RSA decryption fails, the correct encryption key is 2807 used and the recipient will not notice the attack. 2808 As a work around for this potential attack the length of the decrypted 2809 key must be equal to the cipher default key length, in case the 2810 certifiate is not given and all recipientInfo are tried out. 2811 The old behaviour can be re-enabled in the CMS code by setting the 2812 CMS_DEBUG_DECRYPT flag. 2813 ([CVE-2019-1563]) 2814 2815 *Bernd Edlinger* 2816 2817 * Early start up entropy quality from the DEVRANDOM seed source has been 2818 improved for older Linux systems. The RAND subsystem will wait for 2819 /dev/random to be producing output before seeding from /dev/urandom. 2820 The seeded state is stored for future library initialisations using 2821 a system global shared memory segment. The shared memory identifier 2822 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2823 the desired value. The default identifier is 114. 2824 2825 *Paul Dale* 2826 2827 * Correct the extended master secret constant on EBCDIC systems. Without this 2828 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2829 negotiate EMS will fail. Unfortunately this also means that TLS connections 2830 between EBCDIC systems with this fix, and EBCDIC systems without this 2831 fix will fail if they negotiate EMS. 2832 2833 *Matt Caswell* 2834 2835 * Use Windows installation paths in the mingw builds 2836 2837 Mingw isn't a POSIX environment per se, which means that Windows 2838 paths should be used for installation. 2839 ([CVE-2019-1552]) 2840 2841 *Richard Levitte* 2842 2843 * Changed DH_check to accept parameters with order q and 2q subgroups. 2844 With order 2q subgroups the bit 0 of the private key is not secret 2845 but DH_generate_key works around that by clearing bit 0 of the 2846 private key for those. This avoids leaking bit 0 of the private key. 2847 2848 *Bernd Edlinger* 2849 2850 * Significantly reduce secure memory usage by the randomness pools. 2851 2852 *Paul Dale* 2853 2854 * Revert the DEVRANDOM_WAIT feature for Linux systems 2855 2856 The DEVRANDOM_WAIT feature added a select() call to wait for the 2857 /dev/random device to become readable before reading from the 2858 /dev/urandom device. 2859 2860 It turned out that this change had negative side effects on 2861 performance which were not acceptable. After some discussion it 2862 was decided to revert this feature and leave it up to the OS 2863 resp. the platform maintainer to ensure a proper initialization 2864 during early boot time. 2865 2866 *Matthias St. Pierre* 2867 2868### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2869 2870 * Add build tests for C++. These are generated files that only do one 2871 thing, to include one public OpenSSL head file each. This tests that 2872 the public header files can be usefully included in a C++ application. 2873 2874 This test isn't enabled by default. It can be enabled with the option 2875 'enable-buildtest-c++'. 2876 2877 *Richard Levitte* 2878 2879 * Enable SHA3 pre-hashing for ECDSA and DSA. 2880 2881 *Patrick Steuer* 2882 2883 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2884 This changes the size when using the `genpkey` command when no size is given. 2885 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2886 generation commands to use 2048 bits by default. 2887 2888 *Kurt Roeckx* 2889 2890 * Reorganize the manual pages to consistently have RETURN VALUES, 2891 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2892 util/fix-doc-nits accordingly. 2893 2894 *Paul Yang, Joshua Lock* 2895 2896 * Add the missing accessor EVP_PKEY_get0_engine() 2897 2898 *Matt Caswell* 2899 2900 * Have commands like `s_client` and `s_server` output the signature scheme 2901 along with other cipher suite parameters when debugging. 2902 2903 *Lorinczy Zsigmond* 2904 2905 * Make OPENSSL_config() error agnostic again. 2906 2907 *Richard Levitte* 2908 2909 * Do the error handling in RSA decryption constant time. 2910 2911 *Bernd Edlinger* 2912 2913 * Prevent over long nonces in ChaCha20-Poly1305. 2914 2915 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2916 for every encryption operation. RFC 7539 specifies that the nonce value 2917 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2918 and front pads the nonce with 0 bytes if it is less than 12 2919 bytes. However it also incorrectly allows a nonce to be set of up to 16 2920 bytes. In this case only the last 12 bytes are significant and any 2921 additional leading bytes are ignored. 2922 2923 It is a requirement of using this cipher that nonce values are 2924 unique. Messages encrypted using a reused nonce value are susceptible to 2925 serious confidentiality and integrity attacks. If an application changes 2926 the default nonce length to be longer than 12 bytes and then makes a 2927 change to the leading bytes of the nonce expecting the new value to be a 2928 new unique nonce then such an application could inadvertently encrypt 2929 messages with a reused nonce. 2930 2931 Additionally the ignored bytes in a long nonce are not covered by the 2932 integrity guarantee of this cipher. Any application that relies on the 2933 integrity of these ignored leading bytes of a long nonce may be further 2934 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2935 is safe because no such use sets such a long nonce value. However user 2936 applications that use this cipher directly and set a non-default nonce 2937 length to be longer than 12 bytes may be vulnerable. 2938 2939 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2940 Greef of Ronomon. 2941 ([CVE-2019-1543]) 2942 2943 *Matt Caswell* 2944 2945 * Add DEVRANDOM_WAIT feature for Linux systems 2946 2947 On older Linux systems where the getrandom() system call is not available, 2948 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2949 Contrary to getrandom(), the /dev/urandom device will not block during 2950 early boot when the kernel CSPRNG has not been seeded yet. 2951 2952 To mitigate this known weakness, use select() to wait for /dev/random to 2953 become readable before reading from /dev/urandom. 2954 2955 * Ensure that SM2 only uses SM3 as digest algorithm 2956 2957 *Paul Yang* 2958 2959### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2960 2961 * Change the info callback signals for the start and end of a post-handshake 2962 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2963 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2964 confused by this and assume that a TLSv1.2 renegotiation has started. This 2965 can break KeyUpdate handling. Instead we no longer signal the start and end 2966 of a post handshake message exchange (although the messages themselves are 2967 still signalled). This could break some applications that were expecting 2968 the old signals. However without this KeyUpdate is not usable for many 2969 applications. 2970 2971 *Matt Caswell* 2972 2973### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2974 2975 * Timing vulnerability in DSA signature generation 2976 2977 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2978 timing side channel attack. An attacker could use variations in the signing 2979 algorithm to recover the private key. 2980 2981 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2982 ([CVE-2018-0734]) 2983 2984 *Paul Dale* 2985 2986 * Timing vulnerability in ECDSA signature generation 2987 2988 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2989 timing side channel attack. An attacker could use variations in the signing 2990 algorithm to recover the private key. 2991 2992 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2993 ([CVE-2018-0735]) 2994 2995 *Paul Dale* 2996 2997 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2998 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2999 of two gigabytes and the error handling improved. 3000 3001 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 3002 categorized as a normal bug, not a security issue, because the DRBG reseeds 3003 automatically and is fully functional even without additional randomness 3004 provided by the application. 3005 3006### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 3007 3008 * Add a new ClientHello callback. Provides a callback interface that gives 3009 the application the ability to adjust the nascent SSL object at the 3010 earliest stage of ClientHello processing, immediately after extensions have 3011 been collected but before they have been processed. In particular, this 3012 callback can adjust the supported TLS versions in response to the contents 3013 of the ClientHello 3014 3015 *Benjamin Kaduk* 3016 3017 * Add SM2 base algorithm support. 3018 3019 *Jack Lloyd* 3020 3021 * s390x assembly pack: add (improved) hardware-support for the following 3022 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 3023 aes-cfb/cfb8, aes-ecb. 3024 3025 *Patrick Steuer* 3026 3027 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3028 parameter is no longer accepted, as it leads to a corrupt table. NULL 3029 pem_str is reserved for alias entries only. 3030 3031 *Richard Levitte* 3032 3033 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 3034 step for prime curves. The new implementation is based on formulae from 3035 differential addition-and-doubling in homogeneous projective coordinates 3036 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 3037 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 3038 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 3039 to work in projective coordinates. 3040 3041 *Billy Bob Brumley, Nicola Tuveri* 3042 3043 * Change generating and checking of primes so that the error rate of not 3044 being prime depends on the intended use based on the size of the input. 3045 For larger primes this will result in more rounds of Miller-Rabin. 3046 The maximal error rate for primes with more than 1080 bits is lowered 3047 to 2^-128. 3048 3049 *Kurt Roeckx, Annie Yousar* 3050 3051 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3052 3053 *Kurt Roeckx* 3054 3055 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 3056 moving between systems, and to avoid confusion when a Windows build is 3057 done with mingw vs with MSVC. For POSIX installs, there's still a 3058 symlink or copy named 'tsget' to avoid that confusion as well. 3059 3060 *Richard Levitte* 3061 3062 * Revert blinding in ECDSA sign and instead make problematic addition 3063 length-invariant. Switch even to fixed-length Montgomery multiplication. 3064 3065 *Andy Polyakov* 3066 3067 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 3068 step for binary curves. The new implementation is based on formulae from 3069 differential addition-and-doubling in mixed Lopez-Dahab projective 3070 coordinates, modified to independently blind the operands. 3071 3072 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 3073 3074 * Add a scaffold to optionally enhance the Montgomery ladder implementation 3075 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 3076 EC_METHODs to implement their own specialized "ladder step", to take 3077 advantage of more favorable coordinate systems or more efficient 3078 differential addition-and-doubling algorithms. 3079 3080 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 3081 3082 * Modified the random device based seed sources to keep the relevant 3083 file descriptors open rather than reopening them on each access. 3084 This allows such sources to operate in a chroot() jail without 3085 the associated device nodes being available. This behaviour can be 3086 controlled using RAND_keep_random_devices_open(). 3087 3088 *Paul Dale* 3089 3090 * Numerous side-channel attack mitigations have been applied. This may have 3091 performance impacts for some algorithms for the benefit of improved 3092 security. Specific changes are noted in this change log by their respective 3093 authors. 3094 3095 *Matt Caswell* 3096 3097 * AIX shared library support overhaul. Switch to AIX "natural" way of 3098 handling shared libraries, which means collecting shared objects of 3099 different versions and bitnesses in one common archive. This allows to 3100 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 3101 doesn't affect the way 3rd party applications are linked, only how 3102 multi-version installation is managed. 3103 3104 *Andy Polyakov* 3105 3106 * Make ec_group_do_inverse_ord() more robust and available to other 3107 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 3108 mitigations are applied to the fallback BN_mod_inverse(). 3109 When using this function rather than BN_mod_inverse() directly, new 3110 EC cryptosystem implementations are then safer-by-default. 3111 3112 *Billy Bob Brumley* 3113 3114 * Add coordinate blinding for EC_POINT and implement projective 3115 coordinate blinding for generic prime curves as a countermeasure to 3116 chosen point SCA attacks. 3117 3118 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3119 3120 * Add blinding to ECDSA and DSA signatures to protect against side channel 3121 attacks discovered by Keegan Ryan (NCC Group). 3122 3123 *Matt Caswell* 3124 3125 * Enforce checking in the `pkeyutl` command to ensure that the input 3126 length does not exceed the maximum supported digest length when performing 3127 a sign, verify or verifyrecover operation. 3128 3129 *Matt Caswell* 3130 3131 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 3132 I/O in combination with something like select() or poll() will hang. This 3133 can be turned off again using SSL_CTX_clear_mode(). 3134 Many applications do not properly handle non-application data records, and 3135 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 3136 around the problems in those applications, but can also break some. 3137 It's recommended to read the manpages about SSL_read(), SSL_write(), 3138 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 3139 SSL_CTX_set_read_ahead() again. 3140 3141 *Kurt Roeckx* 3142 3143 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3144 now allow empty (zero character) pass phrases. 3145 3146 *Richard Levitte* 3147 3148 * Apply blinding to binary field modular inversion and remove patent 3149 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 3150 3151 *Billy Bob Brumley* 3152 3153 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 3154 binary and prime elliptic curves. 3155 3156 *Billy Bob Brumley* 3157 3158 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 3159 constant time fixed point multiplication. 3160 3161 *Billy Bob Brumley* 3162 3163 * Revise elliptic curve scalar multiplication with timing attack 3164 defenses: ec_wNAF_mul redirects to a constant time implementation 3165 when computing fixed point and variable point multiplication (which 3166 in OpenSSL are mostly used with secret scalars in keygen, sign, 3167 ECDH derive operations). 3168 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 3169 Sohaib ul Hassan* 3170 3171 * Updated CONTRIBUTING 3172 3173 *Rich Salz* 3174 3175 * Updated DRBG / RAND to request nonce and additional low entropy 3176 randomness from the system. 3177 3178 *Matthias St. Pierre* 3179 3180 * Updated 'openssl rehash' to use OpenSSL consistent default. 3181 3182 *Richard Levitte* 3183 3184 * Moved the load of the ssl_conf module to libcrypto, which helps 3185 loading engines that libssl uses before libssl is initialised. 3186 3187 *Matt Caswell* 3188 3189 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 3190 3191 *Matt Caswell* 3192 3193 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 3194 3195 *Ingo Schwarze, Rich Salz* 3196 3197 * Added output of accepting IP address and port for 'openssl s_server' 3198 3199 *Richard Levitte* 3200 3201 * Added a new API for TLSv1.3 ciphersuites: 3202 SSL_CTX_set_ciphersuites() 3203 SSL_set_ciphersuites() 3204 3205 *Matt Caswell* 3206 3207 * Memory allocation failures consistently add an error to the error 3208 stack. 3209 3210 *Rich Salz* 3211 3212 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 3213 in libcrypto when run as setuid/setgid. 3214 3215 *Bernd Edlinger* 3216 3217 * Load any config file by default when libssl is used. 3218 3219 *Matt Caswell* 3220 3221 * Added new public header file <openssl/rand_drbg.h> and documentation 3222 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 3223 3224 *Matthias St. Pierre* 3225 3226 * QNX support removed (cannot find contributors to get their approval 3227 for the license change). 3228 3229 *Rich Salz* 3230 3231 * TLSv1.3 replay protection for early data has been implemented. See the 3232 SSL_read_early_data() man page for further details. 3233 3234 *Matt Caswell* 3235 3236 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 3237 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 3238 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 3239 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 3240 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 3241 configuration has been separated out. See the ciphers man page or the 3242 SSL_CTX_set_ciphersuites() man page for more information. 3243 3244 *Matt Caswell* 3245 3246 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 3247 in responder mode now supports the new "-multi" option, which 3248 spawns the specified number of child processes to handle OCSP 3249 requests. The "-timeout" option now also limits the OCSP 3250 responder's patience to wait to receive the full client request 3251 on a newly accepted connection. Child processes are respawned 3252 as needed, and the CA index file is automatically reloaded 3253 when changed. This makes it possible to run the "ocsp" responder 3254 as a long-running service, making the OpenSSL CA somewhat more 3255 feature-complete. In this mode, most diagnostic messages logged 3256 after entering the event loop are logged via syslog(3) rather than 3257 written to stderr. 3258 3259 *Viktor Dukhovni* 3260 3261 * Added support for X448 and Ed448. Heavily based on original work by 3262 Mike Hamburg. 3263 3264 *Matt Caswell* 3265 3266 * Extend OSSL_STORE with capabilities to search and to narrow the set of 3267 objects loaded. This adds the functions OSSL_STORE_expect() and 3268 OSSL_STORE_find() as well as needed tools to construct searches and 3269 get the search data out of them. 3270 3271 *Richard Levitte* 3272 3273 * Support for TLSv1.3 added. Note that users upgrading from an earlier 3274 version of OpenSSL should review their configuration settings to ensure 3275 that they are still appropriate for TLSv1.3. For further information see: 3276 <https://wiki.openssl.org/index.php/TLS1.3> 3277 3278 *Matt Caswell* 3279 3280 * Grand redesign of the OpenSSL random generator 3281 3282 The default RAND method now utilizes an AES-CTR DRBG according to 3283 NIST standard SP 800-90Ar1. The new random generator is essentially 3284 a port of the default random generator from the OpenSSL FIPS 2.0 3285 object module. It is a hybrid deterministic random bit generator 3286 using an AES-CTR bit stream and which seeds and reseeds itself 3287 automatically using trusted system entropy sources. 3288 3289 Some of its new features are: 3290 - Support for multiple DRBG instances with seed chaining. 3291 - The default RAND method makes use of a DRBG. 3292 - There is a public and private DRBG instance. 3293 - The DRBG instances are fork-safe. 3294 - Keep all global DRBG instances on the secure heap if it is enabled. 3295 - The public and private DRBG instance are per thread for lock free 3296 operation 3297 3298 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 3299 3300 * Changed Configure so it only says what it does and doesn't dump 3301 so much data. Instead, ./configdata.pm should be used as a script 3302 to display all sorts of configuration data. 3303 3304 *Richard Levitte* 3305 3306 * Added processing of "make variables" to Configure. 3307 3308 *Richard Levitte* 3309 3310 * Added SHA512/224 and SHA512/256 algorithm support. 3311 3312 *Paul Dale* 3313 3314 * The last traces of Netware support, first removed in 1.1.0, have 3315 now been removed. 3316 3317 *Rich Salz* 3318 3319 * Get rid of Makefile.shared, and in the process, make the processing 3320 of certain files (rc.obj, or the .def/.map/.opt files produced from 3321 the ordinal files) more visible and hopefully easier to trace and 3322 debug (or make silent). 3323 3324 *Richard Levitte* 3325 3326 * Make it possible to have environment variable assignments as 3327 arguments to config / Configure. 3328 3329 *Richard Levitte* 3330 3331 * Add multi-prime RSA (RFC 8017) support. 3332 3333 *Paul Yang* 3334 3335 * Add SM3 implemented according to GB/T 32905-2016 3336 *Jack Lloyd <jack.lloyd@ribose.com>,* 3337 *Ronald Tse <ronald.tse@ribose.com>,* 3338 *Erick Borsboom <erick.borsboom@ribose.com>* 3339 3340 * Add 'Maximum Fragment Length' TLS extension negotiation and support 3341 as documented in RFC6066. 3342 Based on a patch from Tomasz Moń 3343 3344 *Filipe Raimundo da Silva* 3345 3346 * Add SM4 implemented according to GB/T 32907-2016. 3347 *Jack Lloyd <jack.lloyd@ribose.com>,* 3348 *Ronald Tse <ronald.tse@ribose.com>,* 3349 *Erick Borsboom <erick.borsboom@ribose.com>* 3350 3351 * Reimplement -newreq-nodes and ERR_error_string_n; the 3352 original author does not agree with the license change. 3353 3354 *Rich Salz* 3355 3356 * Add ARIA AEAD TLS support. 3357 3358 *Jon Spillett* 3359 3360 * Some macro definitions to support VS6 have been removed. Visual 3361 Studio 6 has not worked since 1.1.0 3362 3363 *Rich Salz* 3364 3365 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 3366 without clearing the errors. 3367 3368 *Richard Levitte* 3369 3370 * Add "atfork" functions. If building on a system that without 3371 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 3372 requirements. The RAND facility now uses/requires this. 3373 3374 *Rich Salz* 3375 3376 * Add SHA3. 3377 3378 *Andy Polyakov* 3379 3380 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3381 not possible to disable entirely. However, it's still possible to 3382 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3383 as a fallback). 3384 3385 To disable, configure with 'no-ui-console'. 'no-ui' is still 3386 possible to use as an alias. Check at compile time with the 3387 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3388 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3389 3390 *Richard Levitte* 3391 3392 * Add a STORE module, which implements a uniform and URI based reader of 3393 stores that can contain keys, certificates, CRLs and numerous other 3394 objects. The main API is loosely based on a few stdio functions, 3395 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3396 OSSL_STORE_error and OSSL_STORE_close. 3397 The implementation uses backends called "loaders" to implement arbitrary 3398 URI schemes. There is one built in "loader" for the 'file' scheme. 3399 3400 *Richard Levitte* 3401 3402 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3403 then adjusted to work on FreeBSD 8.4 as well. 3404 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3405 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3406 3407 *Richard Levitte* 3408 3409 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3410 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3411 error code calls like this: 3412 3413 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3414 3415 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3416 that can be encoded in C. For the foreseeable future, this will only 3417 affect new modules. 3418 3419 *Richard Levitte and Tim Hudson* 3420 3421 * Removed BSD cryptodev engine. 3422 3423 *Rich Salz* 3424 3425 * Add a build target 'build_all_generated', to build all generated files 3426 and only that. This can be used to prepare everything that requires 3427 things like perl for a system that lacks perl and then move everything 3428 to that system and do the rest of the build there. 3429 3430 *Richard Levitte* 3431 3432 * In the UI interface, make it possible to duplicate the user data. This 3433 can be used by engines that need to retain the data for a longer time 3434 than just the call where this user data is passed. 3435 3436 *Richard Levitte* 3437 3438 * Ignore the '-named_curve auto' value for compatibility of applications 3439 with OpenSSL 1.0.2. 3440 3441 *Tomáš Mráz <tmraz@fedoraproject.org>* 3442 3443 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3444 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3445 alerts across multiple records (some of which could be empty). In practice 3446 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3447 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3448 support this at all. Supporting it adds significant complexity to the 3449 record layer, and its removal is unlikely to cause interoperability 3450 issues. 3451 3452 *Matt Caswell* 3453 3454 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3455 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3456 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3457 in OpenSSL 1.2.0. 3458 3459 *Richard Levitte* 3460 3461 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3462 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3463 3464 *Richard Levitte, Andy Polyakov* 3465 3466 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3467 does for RSA, etc. 3468 3469 *Richard Levitte* 3470 3471 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3472 platform rather than 'mingw'. 3473 3474 *Richard Levitte* 3475 3476 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3477 success if they are asked to add an object which already exists 3478 in the store. This change cascades to other functions which load 3479 certificates and CRLs. 3480 3481 *Paul Dale* 3482 3483 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3484 facilitate stack unwinding even from assembly subroutines. 3485 3486 *Andy Polyakov* 3487 3488 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3489 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3490 3491 *Richard Levitte* 3492 3493 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3494 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3495 which is the minimum version we support. 3496 3497 *Richard Levitte* 3498 3499 * Certificate time validation (X509_cmp_time) enforces stricter 3500 compliance with RFC 5280. Fractional seconds and timezone offsets 3501 are no longer allowed. 3502 3503 *Emilia Käsper* 3504 3505 * Add support for ARIA 3506 3507 *Paul Dale* 3508 3509 * s_client will now send the Server Name Indication (SNI) extension by 3510 default unless the new "-noservername" option is used. The server name is 3511 based on the host provided to the "-connect" option unless overridden by 3512 using "-servername". 3513 3514 *Matt Caswell* 3515 3516 * Add support for SipHash 3517 3518 *Todd Short* 3519 3520 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3521 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3522 prevent issues where no progress is being made and the peer continually 3523 sends unrecognised record types, using up resources processing them. 3524 3525 *Matt Caswell* 3526 3527 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3528 using the algorithm defined in 3529 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3530 3531 *Richard Levitte* 3532 3533 * Heartbeat support has been removed; the ABI is changed for now. 3534 3535 *Richard Levitte, Rich Salz* 3536 3537 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3538 3539 *Emilia Käsper* 3540 3541 * The RSA "null" method, which was partially supported to avoid patent 3542 issues, has been replaced to always returns NULL. 3543 3544 *Rich Salz* 3545 3546OpenSSL 1.1.0 3547------------- 3548 3549### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3550 3551 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3552 used even when parsing explicit parameters, when loading a encoded key 3553 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3554 `EC_GROUP_new_from_ecparameters()`. 3555 This prevents bypass of security hardening and performance gains, 3556 especially for curves with specialized EC_METHODs. 3557 By default, if a key encoded with explicit parameters is loaded and later 3558 encoded, the output is still encoded with explicit parameters, even if 3559 internally a "named" EC_GROUP is used for computation. 3560 3561 *Nicola Tuveri* 3562 3563 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3564 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3565 NULL. After this change, only the cofactor parameter can be NULL. It also 3566 does some minimal sanity checks on the passed order. 3567 ([CVE-2019-1547]) 3568 3569 *Billy Bob Brumley* 3570 3571 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3572 An attack is simple, if the first CMS_recipientInfo is valid but the 3573 second CMS_recipientInfo is chosen ciphertext. If the second 3574 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3575 encryption key will be replaced by garbage, and the message cannot be 3576 decoded, but if the RSA decryption fails, the correct encryption key is 3577 used and the recipient will not notice the attack. 3578 As a work around for this potential attack the length of the decrypted 3579 key must be equal to the cipher default key length, in case the 3580 certifiate is not given and all recipientInfo are tried out. 3581 The old behaviour can be re-enabled in the CMS code by setting the 3582 CMS_DEBUG_DECRYPT flag. 3583 ([CVE-2019-1563]) 3584 3585 *Bernd Edlinger* 3586 3587 * Use Windows installation paths in the mingw builds 3588 3589 Mingw isn't a POSIX environment per se, which means that Windows 3590 paths should be used for installation. 3591 ([CVE-2019-1552]) 3592 3593 *Richard Levitte* 3594 3595### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3596 3597 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3598 This changes the size when using the `genpkey` command when no size is given. 3599 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3600 generation commands to use 2048 bits by default. 3601 3602 *Kurt Roeckx* 3603 3604 * Prevent over long nonces in ChaCha20-Poly1305. 3605 3606 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3607 for every encryption operation. RFC 7539 specifies that the nonce value 3608 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3609 and front pads the nonce with 0 bytes if it is less than 12 3610 bytes. However it also incorrectly allows a nonce to be set of up to 16 3611 bytes. In this case only the last 12 bytes are significant and any 3612 additional leading bytes are ignored. 3613 3614 It is a requirement of using this cipher that nonce values are 3615 unique. Messages encrypted using a reused nonce value are susceptible to 3616 serious confidentiality and integrity attacks. If an application changes 3617 the default nonce length to be longer than 12 bytes and then makes a 3618 change to the leading bytes of the nonce expecting the new value to be a 3619 new unique nonce then such an application could inadvertently encrypt 3620 messages with a reused nonce. 3621 3622 Additionally the ignored bytes in a long nonce are not covered by the 3623 integrity guarantee of this cipher. Any application that relies on the 3624 integrity of these ignored leading bytes of a long nonce may be further 3625 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3626 is safe because no such use sets such a long nonce value. However user 3627 applications that use this cipher directly and set a non-default nonce 3628 length to be longer than 12 bytes may be vulnerable. 3629 3630 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3631 Greef of Ronomon. 3632 ([CVE-2019-1543]) 3633 3634 *Matt Caswell* 3635 3636 * Added SCA hardening for modular field inversion in EC_GROUP through 3637 a new dedicated field_inv() pointer in EC_METHOD. 3638 This also addresses a leakage affecting conversions from projective 3639 to affine coordinates. 3640 3641 *Billy Bob Brumley, Nicola Tuveri* 3642 3643 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3644 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3645 3646 *Bernd Edlinger* 3647 3648 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3649 3650 *Richard Levitte* 3651 3652 * Remove the 'dist' target and add a tarball building script. The 3653 'dist' target has fallen out of use, and it shouldn't be 3654 necessary to configure just to create a source distribution. 3655 3656 *Richard Levitte* 3657 3658### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3659 3660 * Timing vulnerability in DSA signature generation 3661 3662 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3663 timing side channel attack. An attacker could use variations in the signing 3664 algorithm to recover the private key. 3665 3666 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3667 ([CVE-2018-0734]) 3668 3669 *Paul Dale* 3670 3671 * Timing vulnerability in ECDSA signature generation 3672 3673 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3674 timing side channel attack. An attacker could use variations in the signing 3675 algorithm to recover the private key. 3676 3677 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3678 ([CVE-2018-0735]) 3679 3680 *Paul Dale* 3681 3682 * Add coordinate blinding for EC_POINT and implement projective 3683 coordinate blinding for generic prime curves as a countermeasure to 3684 chosen point SCA attacks. 3685 3686 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3687 3688### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3689 3690 * Client DoS due to large DH parameter 3691 3692 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3693 malicious server can send a very large prime value to the client. This will 3694 cause the client to spend an unreasonably long period of time generating a 3695 key for this prime resulting in a hang until the client has finished. This 3696 could be exploited in a Denial Of Service attack. 3697 3698 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3699 ([CVE-2018-0732]) 3700 3701 *Guido Vranken* 3702 3703 * Cache timing vulnerability in RSA Key Generation 3704 3705 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3706 a cache timing side channel attack. An attacker with sufficient access to 3707 mount cache timing attacks during the RSA key generation process could 3708 recover the private key. 3709 3710 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3711 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3712 ([CVE-2018-0737]) 3713 3714 *Billy Brumley* 3715 3716 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3717 parameter is no longer accepted, as it leads to a corrupt table. NULL 3718 pem_str is reserved for alias entries only. 3719 3720 *Richard Levitte* 3721 3722 * Revert blinding in ECDSA sign and instead make problematic addition 3723 length-invariant. Switch even to fixed-length Montgomery multiplication. 3724 3725 *Andy Polyakov* 3726 3727 * Change generating and checking of primes so that the error rate of not 3728 being prime depends on the intended use based on the size of the input. 3729 For larger primes this will result in more rounds of Miller-Rabin. 3730 The maximal error rate for primes with more than 1080 bits is lowered 3731 to 2^-128. 3732 3733 *Kurt Roeckx, Annie Yousar* 3734 3735 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3736 3737 *Kurt Roeckx* 3738 3739 * Add blinding to ECDSA and DSA signatures to protect against side channel 3740 attacks discovered by Keegan Ryan (NCC Group). 3741 3742 *Matt Caswell* 3743 3744 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3745 now allow empty (zero character) pass phrases. 3746 3747 *Richard Levitte* 3748 3749 * Certificate time validation (X509_cmp_time) enforces stricter 3750 compliance with RFC 5280. Fractional seconds and timezone offsets 3751 are no longer allowed. 3752 3753 *Emilia Käsper* 3754 3755 * Fixed a text canonicalisation bug in CMS 3756 3757 Where a CMS detached signature is used with text content the text goes 3758 through a canonicalisation process first prior to signing or verifying a 3759 signature. This process strips trailing space at the end of lines, converts 3760 line terminators to CRLF and removes additional trailing line terminators 3761 at the end of a file. A bug in the canonicalisation process meant that 3762 some characters, such as form-feed, were incorrectly treated as whitespace 3763 and removed. This is contrary to the specification (RFC5485). This fix 3764 could mean that detached text data signed with an earlier version of 3765 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3766 signed with a fixed OpenSSL may fail to verify with an earlier version of 3767 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3768 and use the "-binary" flag (for the "cms" command line application) or set 3769 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3770 3771 *Matt Caswell* 3772 3773### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3774 3775 * Constructed ASN.1 types with a recursive definition could exceed the stack 3776 3777 Constructed ASN.1 types with a recursive definition (such as can be found 3778 in PKCS7) could eventually exceed the stack given malicious input with 3779 excessive recursion. This could result in a Denial Of Service attack. There 3780 are no such structures used within SSL/TLS that come from untrusted sources 3781 so this is considered safe. 3782 3783 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3784 project. 3785 ([CVE-2018-0739]) 3786 3787 *Matt Caswell* 3788 3789 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3790 3791 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3792 effectively reduced to only comparing the least significant bit of each 3793 byte. This allows an attacker to forge messages that would be considered as 3794 authenticated in an amount of tries lower than that guaranteed by the 3795 security claims of the scheme. The module can only be compiled by the 3796 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3797 3798 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3799 (IBM). 3800 ([CVE-2018-0733]) 3801 3802 *Andy Polyakov* 3803 3804 * Add a build target 'build_all_generated', to build all generated files 3805 and only that. This can be used to prepare everything that requires 3806 things like perl for a system that lacks perl and then move everything 3807 to that system and do the rest of the build there. 3808 3809 *Richard Levitte* 3810 3811 * Backport SSL_OP_NO_RENGOTIATION 3812 3813 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3814 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3815 changes this is no longer possible in 1.1.0. Therefore the new 3816 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3817 1.1.0 to provide equivalent functionality. 3818 3819 Note that if an application built against 1.1.0h headers (or above) is run 3820 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3821 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3822 3823 *Matt Caswell* 3824 3825 * Removed the OS390-Unix config target. It relied on a script that doesn't 3826 exist. 3827 3828 *Rich Salz* 3829 3830 * rsaz_1024_mul_avx2 overflow bug on x86_64 3831 3832 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3833 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3834 Analysis suggests that attacks against RSA and DSA as a result of this 3835 defect would be very difficult to perform and are not believed likely. 3836 Attacks against DH1024 are considered just feasible, because most of the 3837 work necessary to deduce information about a private key may be performed 3838 offline. The amount of resources required for such an attack would be 3839 significant. However, for an attack on TLS to be meaningful, the server 3840 would have to share the DH1024 private key among multiple clients, which is 3841 no longer an option since CVE-2016-0701. 3842 3843 This only affects processors that support the AVX2 but not ADX extensions 3844 like Intel Haswell (4th generation). 3845 3846 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3847 was originally found via the OSS-Fuzz project. 3848 ([CVE-2017-3738]) 3849 3850 *Andy Polyakov* 3851 3852### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3853 3854 * bn_sqrx8x_internal carry bug on x86_64 3855 3856 There is a carry propagating bug in the x86_64 Montgomery squaring 3857 procedure. No EC algorithms are affected. Analysis suggests that attacks 3858 against RSA and DSA as a result of this defect would be very difficult to 3859 perform and are not believed likely. Attacks against DH are considered just 3860 feasible (although very difficult) because most of the work necessary to 3861 deduce information about a private key may be performed offline. The amount 3862 of resources required for such an attack would be very significant and 3863 likely only accessible to a limited number of attackers. An attacker would 3864 additionally need online access to an unpatched system using the target 3865 private key in a scenario with persistent DH parameters and a private 3866 key that is shared between multiple clients. 3867 3868 This only affects processors that support the BMI1, BMI2 and ADX extensions 3869 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3870 3871 This issue was reported to OpenSSL by the OSS-Fuzz project. 3872 ([CVE-2017-3736]) 3873 3874 *Andy Polyakov* 3875 3876 * Malformed X.509 IPAddressFamily could cause OOB read 3877 3878 If an X.509 certificate has a malformed IPAddressFamily extension, 3879 OpenSSL could do a one-byte buffer overread. The most likely result 3880 would be an erroneous display of the certificate in text format. 3881 3882 This issue was reported to OpenSSL by the OSS-Fuzz project. 3883 ([CVE-2017-3735]) 3884 3885 *Rich Salz* 3886 3887### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3888 3889 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3890 platform rather than 'mingw'. 3891 3892 *Richard Levitte* 3893 3894 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3895 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3896 which is the minimum version we support. 3897 3898 *Richard Levitte* 3899 3900### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3901 3902 * Encrypt-Then-Mac renegotiation crash 3903 3904 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3905 negotiated where it was not in the original handshake (or vice-versa) then 3906 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3907 and servers are affected. 3908 3909 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3910 ([CVE-2017-3733]) 3911 3912 *Matt Caswell* 3913 3914### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3915 3916 * Truncated packet could crash via OOB read 3917 3918 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3919 cipher is being used, then a truncated packet can cause that host to 3920 perform an out-of-bounds read, usually resulting in a crash. 3921 3922 This issue was reported to OpenSSL by Robert Święcki of Google. 3923 ([CVE-2017-3731]) 3924 3925 *Andy Polyakov* 3926 3927 * Bad (EC)DHE parameters cause a client crash 3928 3929 If a malicious server supplies bad parameters for a DHE or ECDHE key 3930 exchange then this can result in the client attempting to dereference a 3931 NULL pointer leading to a client crash. This could be exploited in a Denial 3932 of Service attack. 3933 3934 This issue was reported to OpenSSL by Guido Vranken. 3935 ([CVE-2017-3730]) 3936 3937 *Matt Caswell* 3938 3939 * BN_mod_exp may produce incorrect results on x86_64 3940 3941 There is a carry propagating bug in the x86_64 Montgomery squaring 3942 procedure. No EC algorithms are affected. Analysis suggests that attacks 3943 against RSA and DSA as a result of this defect would be very difficult to 3944 perform and are not believed likely. Attacks against DH are considered just 3945 feasible (although very difficult) because most of the work necessary to 3946 deduce information about a private key may be performed offline. The amount 3947 of resources required for such an attack would be very significant and 3948 likely only accessible to a limited number of attackers. An attacker would 3949 additionally need online access to an unpatched system using the target 3950 private key in a scenario with persistent DH parameters and a private 3951 key that is shared between multiple clients. For example this can occur by 3952 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3953 similar to CVE-2015-3193 but must be treated as a separate problem. 3954 3955 This issue was reported to OpenSSL by the OSS-Fuzz project. 3956 ([CVE-2017-3732]) 3957 3958 *Andy Polyakov* 3959 3960### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3961 3962 * ChaCha20/Poly1305 heap-buffer-overflow 3963 3964 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3965 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3966 crash. This issue is not considered to be exploitable beyond a DoS. 3967 3968 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3969 ([CVE-2016-7054]) 3970 3971 *Richard Levitte* 3972 3973 * CMS Null dereference 3974 3975 Applications parsing invalid CMS structures can crash with a NULL pointer 3976 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3977 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3978 structure callback if an attempt is made to free certain invalid encodings. 3979 Only CHOICE structures using a callback which do not handle NULL value are 3980 affected. 3981 3982 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3983 ([CVE-2016-7053]) 3984 3985 *Stephen Henson* 3986 3987 * Montgomery multiplication may produce incorrect results 3988 3989 There is a carry propagating bug in the Broadwell-specific Montgomery 3990 multiplication procedure that handles input lengths divisible by, but 3991 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3992 and DH private keys are impossible. This is because the subroutine in 3993 question is not used in operations with the private key itself and an input 3994 of the attacker's direct choice. Otherwise the bug can manifest itself as 3995 transient authentication and key negotiation failures or reproducible 3996 erroneous outcome of public-key operations with specially crafted input. 3997 Among EC algorithms only Brainpool P-512 curves are affected and one 3998 presumably can attack ECDH key negotiation. Impact was not analyzed in 3999 detail, because pre-requisites for attack are considered unlikely. Namely 4000 multiple clients have to choose the curve in question and the server has to 4001 share the private key among them, neither of which is default behaviour. 4002 Even then only clients that chose the curve will be affected. 4003 4004 This issue was publicly reported as transient failures and was not 4005 initially recognized as a security issue. Thanks to Richard Morgan for 4006 providing reproducible case. 4007 ([CVE-2016-7055]) 4008 4009 *Andy Polyakov* 4010 4011 * Removed automatic addition of RPATH in shared libraries and executables, 4012 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 4013 4014 *Richard Levitte* 4015 4016### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 4017 4018 * Fix Use After Free for large message sizes 4019 4020 The patch applied to address CVE-2016-6307 resulted in an issue where if a 4021 message larger than approx 16k is received then the underlying buffer to 4022 store the incoming message is reallocated and moved. Unfortunately a 4023 dangling pointer to the old location is left which results in an attempt to 4024 write to the previously freed location. This is likely to result in a 4025 crash, however it could potentially lead to execution of arbitrary code. 4026 4027 This issue only affects OpenSSL 1.1.0a. 4028 4029 This issue was reported to OpenSSL by Robert Święcki. 4030 ([CVE-2016-6309]) 4031 4032 *Matt Caswell* 4033 4034### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 4035 4036 * OCSP Status Request extension unbounded memory growth 4037 4038 A malicious client can send an excessively large OCSP Status Request 4039 extension. If that client continually requests renegotiation, sending a 4040 large OCSP Status Request extension each time, then there will be unbounded 4041 memory growth on the server. This will eventually lead to a Denial Of 4042 Service attack through memory exhaustion. Servers with a default 4043 configuration are vulnerable even if they do not support OCSP. Builds using 4044 the "no-ocsp" build time option are not affected. 4045 4046 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 4047 ([CVE-2016-6304]) 4048 4049 *Matt Caswell* 4050 4051 * SSL_peek() hang on empty record 4052 4053 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 4054 sends an empty record. This could be exploited by a malicious peer in a 4055 Denial Of Service attack. 4056 4057 This issue was reported to OpenSSL by Alex Gaynor. 4058 ([CVE-2016-6305]) 4059 4060 *Matt Caswell* 4061 4062 * Excessive allocation of memory in tls_get_message_header() and 4063 dtls1_preprocess_fragment() 4064 4065 A (D)TLS message includes 3 bytes for its length in the header for the 4066 message. This would allow for messages up to 16Mb in length. Messages of 4067 this length are excessive and OpenSSL includes a check to ensure that a 4068 peer is sending reasonably sized messages in order to avoid too much memory 4069 being consumed to service a connection. A flaw in the logic of version 4070 1.1.0 means that memory for the message is allocated too early, prior to 4071 the excessive message length check. Due to way memory is allocated in 4072 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 4073 to service a connection. This could lead to a Denial of Service through 4074 memory exhaustion. However, the excessive message length check still takes 4075 place, and this would cause the connection to immediately fail. Assuming 4076 that the application calls SSL_free() on the failed connection in a timely 4077 manner then the 21Mb of allocated memory will then be immediately freed 4078 again. Therefore the excessive memory allocation will be transitory in 4079 nature. This then means that there is only a security impact if: 4080 4081 1) The application does not call SSL_free() in a timely manner in the event 4082 that the connection fails 4083 or 4084 2) The application is working in a constrained environment where there is 4085 very little free memory 4086 or 4087 3) The attacker initiates multiple connection attempts such that there are 4088 multiple connections in a state where memory has been allocated for the 4089 connection; SSL_free() has not yet been called; and there is insufficient 4090 memory to service the multiple requests. 4091 4092 Except in the instance of (1) above any Denial Of Service is likely to be 4093 transitory because as soon as the connection fails the memory is 4094 subsequently freed again in the SSL_free() call. However there is an 4095 increased risk during this period of application crashes due to the lack of 4096 memory - which would then mean a more serious Denial of Service. 4097 4098 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 4099 (CVE-2016-6307 and CVE-2016-6308) 4100 4101 *Matt Caswell* 4102 4103 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 4104 had to be removed. Primary reason is that vendor assembler can't 4105 assemble our modules with -KPIC flag. As result it, assembly 4106 support, was not even available as option. But its lack means 4107 lack of side-channel resistant code, which is incompatible with 4108 security by todays standards. Fortunately gcc is readily available 4109 prepackaged option, which we firmly point at... 4110 4111 *Andy Polyakov* 4112 4113### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 4114 4115 * Windows command-line tool supports UTF-8 opt-in option for arguments 4116 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 4117 (to any value) allows Windows user to access PKCS#12 file generated 4118 with Windows CryptoAPI and protected with non-ASCII password, as well 4119 as files generated under UTF-8 locale on Linux also protected with 4120 non-ASCII password. 4121 4122 *Andy Polyakov* 4123 4124 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 4125 have been disabled by default and removed from DEFAULT, just like RC4. 4126 See the RC4 item below to re-enable both. 4127 4128 *Rich Salz* 4129 4130 * The method for finding the storage location for the Windows RAND seed file 4131 has changed. First we check %RANDFILE%. If that is not set then we check 4132 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 4133 all else fails we fall back to C:\. 4134 4135 *Matt Caswell* 4136 4137 * The EVP_EncryptUpdate() function has had its return type changed from void 4138 to int. A return of 0 indicates and error while a return of 1 indicates 4139 success. 4140 4141 *Matt Caswell* 4142 4143 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 4144 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 4145 off the constant time implementation for RSA, DSA and DH have been made 4146 no-ops and deprecated. 4147 4148 *Matt Caswell* 4149 4150 * Windows RAND implementation was simplified to only get entropy by 4151 calling CryptGenRandom(). Various other RAND-related tickets 4152 were also closed. 4153 4154 *Joseph Wylie Yandle, Rich Salz* 4155 4156 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 4157 and `OPENSSL_LH_`, respectively. The old names are available 4158 with API compatibility. They new names are now completely documented. 4159 4160 *Rich Salz* 4161 4162 * Unify TYPE_up_ref(obj) methods signature. 4163 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 4164 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 4165 int (instead of void) like all others TYPE_up_ref() methods. 4166 So now these methods also check the return value of CRYPTO_atomic_add(), 4167 and the validity of object reference counter. 4168 4169 *fdasilvayy@gmail.com* 4170 4171 * With Windows Visual Studio builds, the .pdb files are installed 4172 alongside the installed libraries and executables. For a static 4173 library installation, ossl_static.pdb is the associate compiler 4174 generated .pdb file to be used when linking programs. 4175 4176 *Richard Levitte* 4177 4178 * Remove openssl.spec. Packaging files belong with the packagers. 4179 4180 *Richard Levitte* 4181 4182 * Automatic Darwin/OSX configuration has had a refresh, it will now 4183 recognise x86_64 architectures automatically. You can still decide 4184 to build for a different bitness with the environment variable 4185 KERNEL_BITS (can be 32 or 64), for example: 4186 4187 KERNEL_BITS=32 ./config 4188 4189 *Richard Levitte* 4190 4191 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 4192 256 bit AES and HMAC with SHA256. 4193 4194 *Steve Henson* 4195 4196 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 4197 4198 *Andy Polyakov* 4199 4200 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 4201 4202 *Rich Salz* 4203 4204 * To enable users to have their own config files and build file templates, 4205 Configure looks in the directory indicated by the environment variable 4206 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 4207 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 4208 name and is used as is. 4209 4210 *Richard Levitte* 4211 4212 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 4213 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 4214 X509_CERT_FILE_CTX was removed. 4215 4216 *Rich Salz* 4217 4218 * "shared" builds are now the default. To create only static libraries use 4219 the "no-shared" Configure option. 4220 4221 *Matt Caswell* 4222 4223 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 4224 All of these option have not worked for some while and are fundamental 4225 algorithms. 4226 4227 *Matt Caswell* 4228 4229 * Make various cleanup routines no-ops and mark them as deprecated. Most 4230 global cleanup functions are no longer required because they are handled 4231 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 4232 Explicitly de-initing can cause problems (e.g. where a library that uses 4233 OpenSSL de-inits, but an application is still using it). The affected 4234 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 4235 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 4236 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 4237 COMP_zlib_cleanup(). 4238 4239 *Matt Caswell* 4240 4241 * --strict-warnings no longer enables runtime debugging options 4242 such as REF_DEBUG. Instead, debug options are automatically 4243 enabled with '--debug' builds. 4244 4245 *Andy Polyakov, Emilia Käsper* 4246 4247 * Made DH and DH_METHOD opaque. The structures for managing DH objects 4248 have been moved out of the public header files. New functions for managing 4249 these have been added. 4250 4251 *Matt Caswell* 4252 4253 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 4254 objects have been moved out of the public header files. New 4255 functions for managing these have been added. 4256 4257 *Richard Levitte* 4258 4259 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 4260 have been moved out of the public header files. New functions for managing 4261 these have been added. 4262 4263 *Matt Caswell* 4264 4265 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 4266 moved out of the public header files. New functions for managing these 4267 have been added. 4268 4269 *Matt Caswell* 4270 4271 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 4272 4273 *Matt Caswell* 4274 4275 * Removed the mk1mf build scripts. 4276 4277 *Richard Levitte* 4278 4279 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 4280 it is always safe to #include a header now. 4281 4282 *Rich Salz* 4283 4284 * Removed the aged BC-32 config and all its supporting scripts 4285 4286 *Richard Levitte* 4287 4288 * Removed support for Ultrix, Netware, and OS/2. 4289 4290 *Rich Salz* 4291 4292 * Add support for HKDF. 4293 4294 *Alessandro Ghedini* 4295 4296 * Add support for blake2b and blake2s 4297 4298 *Bill Cox* 4299 4300 * Added support for "pipelining". Ciphers that have the 4301 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 4302 encryptions/decryptions simultaneously. There are currently no built-in 4303 ciphers with this property but the expectation is that engines will be able 4304 to offer it to significantly improve throughput. Support has been extended 4305 into libssl so that multiple records for a single connection can be 4306 processed in one go (for >=TLS 1.1). 4307 4308 *Matt Caswell* 4309 4310 * Added the AFALG engine. This is an async capable engine which is able to 4311 offload work to the Linux kernel. In this initial version it only supports 4312 AES128-CBC. The kernel must be version 4.1.0 or greater. 4313 4314 *Catriona Lucey* 4315 4316 * OpenSSL now uses a new threading API. It is no longer necessary to 4317 set locking callbacks to use OpenSSL in a multi-threaded environment. There 4318 are two supported threading models: pthreads and windows threads. It is 4319 also possible to configure OpenSSL at compile time for "no-threads". The 4320 old threading API should no longer be used. The functions have been 4321 replaced with "no-op" compatibility macros. 4322 4323 *Alessandro Ghedini, Matt Caswell* 4324 4325 * Modify behavior of ALPN to invoke callback after SNI/servername 4326 callback, such that updates to the SSL_CTX affect ALPN. 4327 4328 *Todd Short* 4329 4330 * Add SSL_CIPHER queries for authentication and key-exchange. 4331 4332 *Todd Short* 4333 4334 * Changes to the DEFAULT cipherlist: 4335 - Prefer (EC)DHE handshakes over plain RSA. 4336 - Prefer AEAD ciphers over legacy ciphers. 4337 - Prefer ECDSA over RSA when both certificates are available. 4338 - Prefer TLSv1.2 ciphers/PRF. 4339 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 4340 default cipherlist. 4341 4342 *Emilia Käsper* 4343 4344 * Change the ECC default curve list to be this, in order: x25519, 4345 secp256r1, secp521r1, secp384r1. 4346 4347 *Rich Salz* 4348 4349 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 4350 disabled by default. They can be re-enabled using the 4351 enable-weak-ssl-ciphers option to Configure. 4352 4353 *Matt Caswell* 4354 4355 * If the server has ALPN configured, but supports no protocols that the 4356 client advertises, send a fatal "no_application_protocol" alert. 4357 This behaviour is SHALL in RFC 7301, though it isn't universally 4358 implemented by other servers. 4359 4360 *Emilia Käsper* 4361 4362 * Add X25519 support. 4363 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 4364 for public and private key encoding using the format documented in 4365 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 4366 key generation and key derivation. 4367 4368 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 4369 X25519(29). 4370 4371 *Steve Henson* 4372 4373 * Deprecate SRP_VBASE_get_by_user. 4374 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4375 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4376 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4377 seed, even if the seed is configured. 4378 4379 Users should use SRP_VBASE_get1_by_user instead. Note that in 4380 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4381 also that even though configuring the SRP seed attempts to hide 4382 invalid usernames by continuing the handshake with fake 4383 credentials, this behaviour is not constant time and no strong 4384 guarantees are made that the handshake is indistinguishable from 4385 that of a valid user. 4386 4387 *Emilia Käsper* 4388 4389 * Configuration change; it's now possible to build dynamic engines 4390 without having to build shared libraries and vice versa. This 4391 only applies to the engines in `engines/`, those in `crypto/engine/` 4392 will always be built into libcrypto (i.e. "static"). 4393 4394 Building dynamic engines is enabled by default; to disable, use 4395 the configuration option "disable-dynamic-engine". 4396 4397 The only requirements for building dynamic engines are the 4398 presence of the DSO module and building with position independent 4399 code, so they will also automatically be disabled if configuring 4400 with "disable-dso" or "disable-pic". 4401 4402 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4403 are also taken away from openssl/opensslconf.h, as they are 4404 irrelevant. 4405 4406 *Richard Levitte* 4407 4408 * Configuration change; if there is a known flag to compile 4409 position independent code, it will always be applied on the 4410 libcrypto and libssl object files, and never on the application 4411 object files. This means other libraries that use routines from 4412 libcrypto / libssl can be made into shared libraries regardless 4413 of how OpenSSL was configured. 4414 4415 If this isn't desirable, the configuration options "disable-pic" 4416 or "no-pic" can be used to disable the use of PIC. This will 4417 also disable building shared libraries and dynamic engines. 4418 4419 *Richard Levitte* 4420 4421 * Removed JPAKE code. It was experimental and has no wide use. 4422 4423 *Rich Salz* 4424 4425 * The INSTALL_PREFIX Makefile variable has been renamed to 4426 DESTDIR. That makes for less confusion on what this variable 4427 is for. Also, the configuration option --install_prefix is 4428 removed. 4429 4430 *Richard Levitte* 4431 4432 * Heartbeat for TLS has been removed and is disabled by default 4433 for DTLS; configure with enable-heartbeats. Code that uses the 4434 old #define's might need to be updated. 4435 4436 *Emilia Käsper, Rich Salz* 4437 4438 * Rename REF_CHECK to REF_DEBUG. 4439 4440 *Rich Salz* 4441 4442 * New "unified" build system 4443 4444 The "unified" build system is aimed to be a common system for all 4445 platforms we support. With it comes new support for VMS. 4446 4447 This system builds supports building in a different directory tree 4448 than the source tree. It produces one Makefile (for unix family 4449 or lookalikes), or one descrip.mms (for VMS). 4450 4451 The source of information to make the Makefile / descrip.mms is 4452 small files called 'build.info', holding the necessary 4453 information for each directory with source to compile, and a 4454 template in Configurations, like unix-Makefile.tmpl or 4455 descrip.mms.tmpl. 4456 4457 With this change, the library names were also renamed on Windows 4458 and on VMS. They now have names that are closer to the standard 4459 on Unix, and include the major version number, and in certain 4460 cases, the architecture they are built for. See "Notes on shared 4461 libraries" in INSTALL. 4462 4463 We rely heavily on the perl module Text::Template. 4464 4465 *Richard Levitte* 4466 4467 * Added support for auto-initialisation and de-initialisation of the library. 4468 OpenSSL no longer requires explicit init or deinit routines to be called, 4469 except in certain circumstances. See the OPENSSL_init_crypto() and 4470 OPENSSL_init_ssl() man pages for further information. 4471 4472 *Matt Caswell* 4473 4474 * The arguments to the DTLSv1_listen function have changed. Specifically the 4475 "peer" argument is now expected to be a BIO_ADDR object. 4476 4477 * Rewrite of BIO networking library. The BIO library lacked consistent 4478 support of IPv6, and adding it required some more extensive 4479 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4480 which hold all types of addresses and chains of address information. 4481 It also introduces a new API, with functions like BIO_socket, 4482 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4483 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4484 have been adapted accordingly. 4485 4486 *Richard Levitte* 4487 4488 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4489 the leading 0-byte. 4490 4491 *Emilia Käsper* 4492 4493 * CRIME protection: disable compression by default, even if OpenSSL is 4494 compiled with zlib enabled. Applications can still enable compression 4495 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4496 using the SSL_CONF library to configure compression. 4497 4498 *Emilia Käsper* 4499 4500 * The signature of the session callback configured with 4501 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4502 was explicitly marked as `const unsigned char*` instead of 4503 `unsigned char*`. 4504 4505 *Emilia Käsper* 4506 4507 * Always DPURIFY. Remove the use of uninitialized memory in the 4508 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4509 4510 *Emilia Käsper* 4511 4512 * Removed many obsolete configuration items, including 4513 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4514 MD2_CHAR, MD2_INT, MD2_LONG 4515 BF_PTR, BF_PTR2 4516 IDEA_SHORT, IDEA_LONG 4517 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4518 4519 *Rich Salz, with advice from Andy Polyakov* 4520 4521 * Many BN internals have been moved to an internal header file. 4522 4523 *Rich Salz with help from Andy Polyakov* 4524 4525 * Configuration and writing out the results from it has changed. 4526 Files such as Makefile include/openssl/opensslconf.h and are now 4527 produced through general templates, such as Makefile.in and 4528 crypto/opensslconf.h.in and some help from the perl module 4529 Text::Template. 4530 4531 Also, the center of configuration information is no longer 4532 Makefile. Instead, Configure produces a perl module in 4533 configdata.pm which holds most of the config data (in the hash 4534 table %config), the target data that comes from the target 4535 configuration in one of the `Configurations/*.conf` files (in 4536 %target). 4537 4538 *Richard Levitte* 4539 4540 * To clarify their intended purposes, the Configure options 4541 --prefix and --openssldir change their semantics, and become more 4542 straightforward and less interdependent. 4543 4544 --prefix shall be used exclusively to give the location INSTALLTOP 4545 where programs, scripts, libraries, include files and manuals are 4546 going to be installed. The default is now /usr/local. 4547 4548 --openssldir shall be used exclusively to give the default 4549 location OPENSSLDIR where certificates, private keys, CRLs are 4550 managed. This is also where the default openssl.cnf gets 4551 installed. 4552 If the directory given with this option is a relative path, the 4553 values of both the --prefix value and the --openssldir value will 4554 be combined to become OPENSSLDIR. 4555 The default for --openssldir is INSTALLTOP/ssl. 4556 4557 Anyone who uses --openssldir to specify where OpenSSL is to be 4558 installed MUST change to use --prefix instead. 4559 4560 *Richard Levitte* 4561 4562 * The GOST engine was out of date and therefore it has been removed. An up 4563 to date GOST engine is now being maintained in an external repository. 4564 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4565 support for GOST ciphersuites (these are only activated if a GOST engine 4566 is present). 4567 4568 *Matt Caswell* 4569 4570 * EGD is no longer supported by default; use enable-egd when 4571 configuring. 4572 4573 *Ben Kaduk and Rich Salz* 4574 4575 * The distribution now has Makefile.in files, which are used to 4576 create Makefile's when Configure is run. *Configure must be run 4577 before trying to build now.* 4578 4579 *Rich Salz* 4580 4581 * The return value for SSL_CIPHER_description() for error conditions 4582 has changed. 4583 4584 *Rich Salz* 4585 4586 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4587 4588 Obtaining and performing DNSSEC validation of TLSA records is 4589 the application's responsibility. The application provides 4590 the TLSA records of its choice to OpenSSL, and these are then 4591 used to authenticate the peer. 4592 4593 The TLSA records need not even come from DNS. They can, for 4594 example, be used to implement local end-entity certificate or 4595 trust-anchor "pinning", where the "pin" data takes the form 4596 of TLSA records, which can augment or replace verification 4597 based on the usual WebPKI public certification authorities. 4598 4599 *Viktor Dukhovni* 4600 4601 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4602 continues to support deprecated interfaces in default builds. 4603 However, applications are strongly advised to compile their 4604 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4605 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4606 or the 1.1.0 releases. 4607 4608 In environments in which all applications have been ported to 4609 not use any deprecated interfaces OpenSSL's Configure script 4610 should be used with the --api=1.1.0 option to entirely remove 4611 support for the deprecated features from the library and 4612 unconditionally disable them in the installed headers. 4613 Essentially the same effect can be achieved with the "no-deprecated" 4614 argument to Configure, except that this will always restrict 4615 the build to just the latest API, rather than a fixed API 4616 version. 4617 4618 As applications are ported to future revisions of the API, 4619 they should update their compile-time OPENSSL_API_COMPAT define 4620 accordingly, but in most cases should be able to continue to 4621 compile with later releases. 4622 4623 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4624 0x10000000L and 0x00908000L, respectively. However those 4625 versions did not support the OPENSSL_API_COMPAT feature, and 4626 so applications are not typically tested for explicit support 4627 of just the undeprecated features of either release. 4628 4629 *Viktor Dukhovni* 4630 4631 * Add support for setting the minimum and maximum supported protocol. 4632 It can bet set via the SSL_set_min_proto_version() and 4633 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4634 MaxProtocol. It's recommended to use the new APIs to disable 4635 protocols instead of disabling individual protocols using 4636 SSL_set_options() or SSL_CONF's Protocol. This change also 4637 removes support for disabling TLS 1.2 in the OpenSSL TLS 4638 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4639 4640 *Kurt Roeckx* 4641 4642 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4643 4644 *Andy Polyakov* 4645 4646 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4647 and integrates ECDSA and ECDH functionality into EC. Implementations can 4648 now redirect key generation and no longer need to convert to or from 4649 ECDSA_SIG format. 4650 4651 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4652 include the ec.h header file instead. 4653 4654 *Steve Henson* 4655 4656 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4657 ciphers who are no longer supported and drops support the ephemeral RSA key 4658 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4659 4660 *Kurt Roeckx* 4661 4662 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4663 opaque. For HMAC_CTX, the following constructors and destructors 4664 were added: 4665 4666 HMAC_CTX *HMAC_CTX_new(void); 4667 void HMAC_CTX_free(HMAC_CTX *ctx); 4668 4669 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4670 destroy such methods has been added. See EVP_MD_meth_new(3) and 4671 EVP_CIPHER_meth_new(3) for documentation. 4672 4673 Additional changes: 4674 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4675 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4676 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4677 an already created structure. 4678 2) For consistency with the majority of our object creators and 4679 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4680 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4681 for deprecated builds. 4682 4683 *Richard Levitte* 4684 4685 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4686 cryptographic operations to be performed asynchronously as long as an 4687 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4688 further details. Libssl has also had this capability integrated with the 4689 introduction of the new mode SSL_MODE_ASYNC and associated error 4690 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4691 pages. This work was developed in partnership with Intel Corp. 4692 4693 *Matt Caswell* 4694 4695 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4696 always enabled now. If you want to disable the support you should 4697 exclude it using the list of supported ciphers. This also means that the 4698 "-no_ecdhe" option has been removed from s_server. 4699 4700 *Kurt Roeckx* 4701 4702 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4703 SSL_{CTX_}set1_curves() which can set a list. 4704 4705 *Kurt Roeckx* 4706 4707 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4708 curve you want to support using SSL_{CTX_}set1_curves(). 4709 4710 *Kurt Roeckx* 4711 4712 * State machine rewrite. The state machine code has been significantly 4713 refactored in order to remove much duplication of code and solve issues 4714 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4715 further details). This change does have some associated API changes. 4716 Notably the SSL_state() function has been removed and replaced by 4717 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4718 SSL_set_state() has been removed altogether. The previous handshake states 4719 defined in ssl.h and ssl3.h have also been removed. 4720 4721 *Matt Caswell* 4722 4723 * All instances of the string "ssleay" in the public API were replaced 4724 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4725 Some error codes related to internal RSA_eay API's were renamed. 4726 4727 *Rich Salz* 4728 4729 * The demo files in crypto/threads were moved to demo/threads. 4730 4731 *Rich Salz* 4732 4733 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4734 sureware and ubsec. 4735 4736 *Matt Caswell, Rich Salz* 4737 4738 * New ASN.1 embed macro. 4739 4740 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4741 structure is not allocated: it is part of the parent. That is instead of 4742 4743 FOO *x; 4744 4745 it must be: 4746 4747 FOO x; 4748 4749 This reduces memory fragmentation and make it impossible to accidentally 4750 set a mandatory field to NULL. 4751 4752 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4753 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4754 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4755 SEQUENCE OF. 4756 4757 *Steve Henson* 4758 4759 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4760 4761 *Emilia Käsper* 4762 4763 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4764 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4765 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4766 DES and RC4 ciphersuites. 4767 4768 *Matt Caswell* 4769 4770 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4771 This changes the decoding behaviour for some invalid messages, 4772 though the change is mostly in the more lenient direction, and 4773 legacy behaviour is preserved as much as possible. 4774 4775 *Emilia Käsper* 4776 4777 * Fix no-stdio build. 4778 *David Woodhouse <David.Woodhouse@intel.com> and also* 4779 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4780 4781 * New testing framework 4782 The testing framework has been largely rewritten and is now using 4783 perl and the perl modules Test::Harness and an extended variant of 4784 Test::More called OpenSSL::Test to do its work. All test scripts in 4785 test/ have been rewritten into test recipes, and all direct calls to 4786 executables in test/Makefile have become individual recipes using the 4787 simplified testing OpenSSL::Test::Simple. 4788 4789 For documentation on our testing modules, do: 4790 4791 perldoc test/testlib/OpenSSL/Test/Simple.pm 4792 perldoc test/testlib/OpenSSL/Test.pm 4793 4794 *Richard Levitte* 4795 4796 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4797 are used; the latter aborts on memory leaks (usually checked on exit). 4798 Some undocumented "set malloc, etc., hooks" functions were removed 4799 and others were changed. All are now documented. 4800 4801 *Rich Salz* 4802 4803 * In DSA_generate_parameters_ex, if the provided seed is too short, 4804 return an error 4805 4806 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4807 4808 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4809 from RFC4279, RFC4785, RFC5487, RFC5489. 4810 4811 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4812 original RSA_PSK patch. 4813 4814 *Steve Henson* 4815 4816 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4817 era flag was never set throughout the codebase (only read). Also removed 4818 SSL3_FLAGS_POP_BUFFER which was only used if 4819 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4820 4821 *Matt Caswell* 4822 4823 * Changed the default name options in the "ca", "crl", "req" and "x509" 4824 to be "oneline" instead of "compat". 4825 4826 *Richard Levitte* 4827 4828 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4829 not aware of clients that still exhibit this bug, and the workaround 4830 hasn't been working properly for a while. 4831 4832 *Emilia Käsper* 4833 4834 * The return type of BIO_number_read() and BIO_number_written() as well as 4835 the corresponding num_read and num_write members in the BIO structure has 4836 changed from unsigned long to uint64_t. On platforms where an unsigned 4837 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4838 transferred. 4839 4840 *Matt Caswell* 4841 4842 * Given the pervasive nature of TLS extensions it is inadvisable to run 4843 OpenSSL without support for them. It also means that maintaining 4844 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4845 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4846 4847 *Matt Caswell* 4848 4849 * Removed support for the two export grade static DH ciphersuites 4850 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4851 were newly added (along with a number of other static DH ciphersuites) to 4852 1.0.2. However the two export ones have *never* worked since they were 4853 introduced. It seems strange in any case to be adding new export 4854 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4855 4856 *Matt Caswell* 4857 4858 * Version negotiation has been rewritten. In particular SSLv23_method(), 4859 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4860 and turned into macros which simply call the new preferred function names 4861 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4862 should use the new names instead. Also as part of this change the ssl23.h 4863 header file has been removed. 4864 4865 *Matt Caswell* 4866 4867 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4868 code and the associated standard is no longer considered fit-for-purpose. 4869 4870 *Matt Caswell* 4871 4872 * RT2547 was closed. When generating a private key, try to make the 4873 output file readable only by the owner. This behavior change might 4874 be noticeable when interacting with other software. 4875 4876 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4877 Added a test. 4878 4879 *Rich Salz* 4880 4881 * Added HTTP GET support to the ocsp command. 4882 4883 *Rich Salz* 4884 4885 * Changed default digest for the dgst and enc commands from MD5 to 4886 sha256 4887 4888 *Rich Salz* 4889 4890 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4891 4892 *Matt Caswell* 4893 4894 * Added support for TLS extended master secret from 4895 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4896 initial patch which was a great help during development. 4897 4898 *Steve Henson* 4899 4900 * All libssl internal structures have been removed from the public header 4901 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4902 now redundant). Users should not attempt to access internal structures 4903 directly. Instead they should use the provided API functions. 4904 4905 *Matt Caswell* 4906 4907 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4908 Access to deprecated functions can be re-enabled by running config with 4909 "enable-deprecated". In addition applications wishing to use deprecated 4910 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4911 will, by default, disable some transitive includes that previously existed 4912 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4913 4914 *Matt Caswell* 4915 4916 * Added support for OCB mode. OpenSSL has been granted a patent license 4917 compatible with the OpenSSL license for use of OCB. Details are available 4918 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4919 for OCB can be removed by calling config with no-ocb. 4920 4921 *Matt Caswell* 4922 4923 * SSLv2 support has been removed. It still supports receiving a SSLv2 4924 compatible client hello. 4925 4926 *Kurt Roeckx* 4927 4928 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4929 done while fixing the error code for the key-too-small case. 4930 4931 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4932 4933 * CA.sh has been removed; use CA.pl instead. 4934 4935 *Rich Salz* 4936 4937 * Removed old DES API. 4938 4939 *Rich Salz* 4940 4941 * Remove various unsupported platforms: 4942 Sony NEWS4 4943 BEOS and BEOS_R5 4944 NeXT 4945 SUNOS 4946 MPE/iX 4947 Sinix/ReliantUNIX RM400 4948 DGUX 4949 NCR 4950 Tandem 4951 Cray 4952 16-bit platforms such as WIN16 4953 4954 *Rich Salz* 4955 4956 * Clean up OPENSSL_NO_xxx #define's 4957 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4958 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4959 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4960 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4961 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4962 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4963 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4964 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4965 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4966 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4967 4968 *Rich Salz* 4969 4970 * Cleaned up dead code 4971 Remove all but one '#ifdef undef' which is to be looked at. 4972 4973 *Rich Salz* 4974 4975 * Clean up calling of xxx_free routines. 4976 Just like free(), fix most of the xxx_free routines to accept 4977 NULL. Remove the non-null checks from callers. Save much code. 4978 4979 *Rich Salz* 4980 4981 * Add secure heap for storage of private keys (when possible). 4982 Add BIO_s_secmem(), CBIGNUM, etc. 4983 Contributed by Akamai Technologies under our Corporate CLA. 4984 4985 *Rich Salz* 4986 4987 * Experimental support for a new, fast, unbiased prime candidate generator, 4988 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4989 4990 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4991 4992 * New output format NSS in the sess_id command line tool. This allows 4993 exporting the session id and the master key in NSS keylog format. 4994 4995 *Martin Kaiser <martin@kaiser.cx>* 4996 4997 * Harmonize version and its documentation. -f flag is used to display 4998 compilation flags. 4999 5000 *mancha <mancha1@zoho.com>* 5001 5002 * Fix eckey_priv_encode so it immediately returns an error upon a failure 5003 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 5004 5005 *mancha <mancha1@zoho.com>* 5006 5007 * Fix some double frees. These are not thought to be exploitable. 5008 5009 *mancha <mancha1@zoho.com>* 5010 5011 * A missing bounds check in the handling of the TLS heartbeat extension 5012 can be used to reveal up to 64k of memory to a connected client or 5013 server. 5014 5015 Thanks for Neel Mehta of Google Security for discovering this bug and to 5016 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 5017 preparing the fix ([CVE-2014-0160]) 5018 5019 *Adam Langley, Bodo Moeller* 5020 5021 * Fix for the attack described in the paper "Recovering OpenSSL 5022 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 5023 by Yuval Yarom and Naomi Benger. Details can be obtained from: 5024 <http://eprint.iacr.org/2014/140> 5025 5026 Thanks to Yuval Yarom and Naomi Benger for discovering this 5027 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 5028 5029 *Yuval Yarom and Naomi Benger* 5030 5031 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 5032 this fixes a limitation in previous versions of OpenSSL. 5033 5034 *Steve Henson* 5035 5036 * Experimental encrypt-then-mac support. 5037 5038 Experimental support for encrypt then mac from 5039 draft-gutmann-tls-encrypt-then-mac-02.txt 5040 5041 To enable it set the appropriate extension number (0x42 for the test 5042 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 5043 5044 For non-compliant peers (i.e. just about everything) this should have no 5045 effect. 5046 5047 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 5048 5049 *Steve Henson* 5050 5051 * Add EVP support for key wrapping algorithms, to avoid problems with 5052 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 5053 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 5054 algorithms and include tests cases. 5055 5056 *Steve Henson* 5057 5058 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 5059 enveloped data. 5060 5061 *Steve Henson* 5062 5063 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 5064 MGF1 digest and OAEP label. 5065 5066 *Steve Henson* 5067 5068 * Make openssl verify return errors. 5069 5070 *Chris Palmer <palmer@google.com> and Ben Laurie* 5071 5072 * New function ASN1_TIME_diff to calculate the difference between two 5073 ASN1_TIME structures or one structure and the current time. 5074 5075 *Steve Henson* 5076 5077 * Update fips_test_suite to support multiple command line options. New 5078 test to induce all self test errors in sequence and check expected 5079 failures. 5080 5081 *Steve Henson* 5082 5083 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 5084 sign or verify all in one operation. 5085 5086 *Steve Henson* 5087 5088 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 5089 test programs and fips_test_suite. Includes functionality to parse 5090 the minimal script output of fipsalgest.pl directly. 5091 5092 *Steve Henson* 5093 5094 * Add authorisation parameter to FIPS_module_mode_set(). 5095 5096 *Steve Henson* 5097 5098 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 5099 5100 *Steve Henson* 5101 5102 * Use separate DRBG fields for internal and external flags. New function 5103 FIPS_drbg_health_check() to perform on demand health checking. Add 5104 generation tests to fips_test_suite with reduced health check interval to 5105 demonstrate periodic health checking. Add "nodh" option to 5106 fips_test_suite to skip very slow DH test. 5107 5108 *Steve Henson* 5109 5110 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 5111 based on NID. 5112 5113 *Steve Henson* 5114 5115 * More extensive health check for DRBG checking many more failure modes. 5116 New function FIPS_selftest_drbg_all() to handle every possible DRBG 5117 combination: call this in fips_test_suite. 5118 5119 *Steve Henson* 5120 5121 * Add support for canonical generation of DSA parameter 'g'. See 5122 FIPS 186-3 A.2.3. 5123 5124 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 5125 POST to handle HMAC cases. 5126 5127 *Steve Henson* 5128 5129 * Add functions FIPS_module_version() and FIPS_module_version_text() 5130 to return numerical and string versions of the FIPS module number. 5131 5132 *Steve Henson* 5133 5134 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 5135 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 5136 outside the validated module in the FIPS capable OpenSSL. 5137 5138 *Steve Henson* 5139 5140 * Minor change to DRBG entropy callback semantics. In some cases 5141 there is no multiple of the block length between min_len and 5142 max_len. Allow the callback to return more than max_len bytes 5143 of entropy but discard any extra: it is the callback's responsibility 5144 to ensure that the extra data discarded does not impact the 5145 requested amount of entropy. 5146 5147 *Steve Henson* 5148 5149 * Add PRNG security strength checks to RSA, DSA and ECDSA using 5150 information in FIPS186-3, SP800-57 and SP800-131A. 5151 5152 *Steve Henson* 5153 5154 * CCM support via EVP. Interface is very similar to GCM case except we 5155 must supply all data in one chunk (i.e. no update, final) and the 5156 message length must be supplied if AAD is used. Add algorithm test 5157 support. 5158 5159 *Steve Henson* 5160 5161 * Initial version of POST overhaul. Add POST callback to allow the status 5162 of POST to be monitored and/or failures induced. Modify fips_test_suite 5163 to use callback. Always run all selftests even if one fails. 5164 5165 *Steve Henson* 5166 5167 * XTS support including algorithm test driver in the fips_gcmtest program. 5168 Note: this does increase the maximum key length from 32 to 64 bytes but 5169 there should be no binary compatibility issues as existing applications 5170 will never use XTS mode. 5171 5172 *Steve Henson* 5173 5174 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 5175 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 5176 performs algorithm blocking for unapproved PRNG types. Also do not 5177 set PRNG type in FIPS_mode_set(): leave this to the application. 5178 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 5179 the standard OpenSSL PRNG: set additional data to a date time vector. 5180 5181 *Steve Henson* 5182 5183 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 5184 This shouldn't present any incompatibility problems because applications 5185 shouldn't be using these directly and any that are will need to rethink 5186 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 5187 5188 *Steve Henson* 5189 5190 * Extensive self tests and health checking required by SP800-90 DRBG. 5191 Remove strength parameter from FIPS_drbg_instantiate and always 5192 instantiate at maximum supported strength. 5193 5194 *Steve Henson* 5195 5196 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 5197 5198 *Steve Henson* 5199 5200 * New algorithm test program fips_dhvs to handle DH primitives only testing. 5201 5202 *Steve Henson* 5203 5204 * New function DH_compute_key_padded() to compute a DH key and pad with 5205 leading zeroes if needed: this complies with SP800-56A et al. 5206 5207 *Steve Henson* 5208 5209 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 5210 anything, incomplete, subject to change and largely untested at present. 5211 5212 *Steve Henson* 5213 5214 * Modify fipscanisteronly build option to only build the necessary object 5215 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 5216 5217 *Steve Henson* 5218 5219 * Add experimental option FIPSSYMS to give all symbols in 5220 fipscanister.o and FIPS or fips prefix. This will avoid 5221 conflicts with future versions of OpenSSL. Add perl script 5222 util/fipsas.pl to preprocess assembly language source files 5223 and rename any affected symbols. 5224 5225 *Steve Henson* 5226 5227 * Add selftest checks and algorithm block of non-fips algorithms in 5228 FIPS mode. Remove DES2 from selftests. 5229 5230 *Steve Henson* 5231 5232 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 5233 return internal method without any ENGINE dependencies. Add new 5234 tiny fips sign and verify functions. 5235 5236 *Steve Henson* 5237 5238 * New build option no-ec2m to disable characteristic 2 code. 5239 5240 *Steve Henson* 5241 5242 * New build option "fipscanisteronly". This only builds fipscanister.o 5243 and (currently) associated fips utilities. Uses the file Makefile.fips 5244 instead of Makefile.org as the prototype. 5245 5246 *Steve Henson* 5247 5248 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 5249 Update fips_gcmtest to use IV generator. 5250 5251 *Steve Henson* 5252 5253 * Initial, experimental EVP support for AES-GCM. AAD can be input by 5254 setting output buffer to NULL. The `*Final` function must be 5255 called although it will not retrieve any additional data. The tag 5256 can be set or retrieved with a ctrl. The IV length is by default 12 5257 bytes (96 bits) but can be set to an alternative value. If the IV 5258 length exceeds the maximum IV length (currently 16 bytes) it cannot be 5259 set before the key. 5260 5261 *Steve Henson* 5262 5263 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 5264 underlying do_cipher function handles all cipher semantics itself 5265 including padding and finalisation. This is useful if (for example) 5266 an ENGINE cipher handles block padding itself. The behaviour of 5267 do_cipher is subtly changed if this flag is set: the return value 5268 is the number of characters written to the output buffer (zero is 5269 no longer an error code) or a negative error code. Also if the 5270 input buffer is NULL and length 0 finalisation should be performed. 5271 5272 *Steve Henson* 5273 5274 * If a candidate issuer certificate is already part of the constructed 5275 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 5276 5277 *Steve Henson* 5278 5279 * Improve forward-security support: add functions 5280 5281 void SSL_CTX_set_not_resumable_session_callback( 5282 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 5283 void SSL_set_not_resumable_session_callback( 5284 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 5285 5286 for use by SSL/TLS servers; the callback function will be called whenever a 5287 new session is created, and gets to decide whether the session may be 5288 cached to make it resumable (return 0) or not (return 1). (As by the 5289 SSL/TLS protocol specifications, the session_id sent by the server will be 5290 empty to indicate that the session is not resumable; also, the server will 5291 not generate RFC 4507 (RFC 5077) session tickets.) 5292 5293 A simple reasonable callback implementation is to return is_forward_secure. 5294 This parameter will be set to 1 or 0 depending on the ciphersuite selected 5295 by the SSL/TLS server library, indicating whether it can provide forward 5296 security. 5297 5298 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 5299 5300 * New -verify_name option in command line utilities to set verification 5301 parameters by name. 5302 5303 *Steve Henson* 5304 5305 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 5306 Add CMAC pkey methods. 5307 5308 *Steve Henson* 5309 5310 * Experimental renegotiation in s_server -www mode. If the client 5311 browses /reneg connection is renegotiated. If /renegcert it is 5312 renegotiated requesting a certificate. 5313 5314 *Steve Henson* 5315 5316 * Add an "external" session cache for debugging purposes to s_server. This 5317 should help trace issues which normally are only apparent in deployed 5318 multi-process servers. 5319 5320 *Steve Henson* 5321 5322 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 5323 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 5324 BIO_set_cipher() and some obscure PEM functions were changed so they 5325 can now return an error. The RAND changes required a change to the 5326 RAND_METHOD structure. 5327 5328 *Steve Henson* 5329 5330 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 5331 a gcc attribute to warn if the result of a function is ignored. This 5332 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 5333 whose return value is often ignored. 5334 5335 *Steve Henson* 5336 5337 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 5338 These allow SCTs (signed certificate timestamps) to be requested and 5339 validated when establishing a connection. 5340 5341 *Rob Percival <robpercival@google.com>* 5342 5343OpenSSL 1.0.2 5344------------- 5345 5346### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 5347 5348 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 5349 used even when parsing explicit parameters, when loading a encoded key 5350 or calling `EC_GROUP_new_from_ecpkparameters()`/ 5351 `EC_GROUP_new_from_ecparameters()`. 5352 This prevents bypass of security hardening and performance gains, 5353 especially for curves with specialized EC_METHODs. 5354 By default, if a key encoded with explicit parameters is loaded and later 5355 encoded, the output is still encoded with explicit parameters, even if 5356 internally a "named" EC_GROUP is used for computation. 5357 5358 *Nicola Tuveri* 5359 5360 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 5361 this change, EC_GROUP_set_generator would accept order and/or cofactor as 5362 NULL. After this change, only the cofactor parameter can be NULL. It also 5363 does some minimal sanity checks on the passed order. 5364 ([CVE-2019-1547]) 5365 5366 *Billy Bob Brumley* 5367 5368 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 5369 An attack is simple, if the first CMS_recipientInfo is valid but the 5370 second CMS_recipientInfo is chosen ciphertext. If the second 5371 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 5372 encryption key will be replaced by garbage, and the message cannot be 5373 decoded, but if the RSA decryption fails, the correct encryption key is 5374 used and the recipient will not notice the attack. 5375 As a work around for this potential attack the length of the decrypted 5376 key must be equal to the cipher default key length, in case the 5377 certifiate is not given and all recipientInfo are tried out. 5378 The old behaviour can be re-enabled in the CMS code by setting the 5379 CMS_DEBUG_DECRYPT flag. 5380 ([CVE-2019-1563]) 5381 5382 *Bernd Edlinger* 5383 5384 * Document issue with installation paths in diverse Windows builds 5385 5386 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5387 binaries and run-time config file. 5388 ([CVE-2019-1552]) 5389 5390 *Richard Levitte* 5391 5392### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5393 5394 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5395 This changes the size when using the `genpkey` command when no size is given. 5396 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5397 generation commands to use 2048 bits by default. 5398 5399 *Kurt Roeckx* 5400 5401 * Add FIPS support for Android Arm 64-bit 5402 5403 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5404 Module in Version 2.0.10. For some reason, the corresponding target 5405 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5406 built with FIPS support on Android Arm 64-bit. This omission has been 5407 fixed. 5408 5409 *Matthias St. Pierre* 5410 5411### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5412 5413 * 0-byte record padding oracle 5414 5415 If an application encounters a fatal protocol error and then calls 5416 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5417 then OpenSSL can respond differently to the calling application if a 0 byte 5418 record is received with invalid padding compared to if a 0 byte record is 5419 received with an invalid MAC. If the application then behaves differently 5420 based on that in a way that is detectable to the remote peer, then this 5421 amounts to a padding oracle that could be used to decrypt data. 5422 5423 In order for this to be exploitable "non-stitched" ciphersuites must be in 5424 use. Stitched ciphersuites are optimised implementations of certain 5425 commonly used ciphersuites. Also the application must call SSL_shutdown() 5426 twice even if a protocol error has occurred (applications should not do 5427 this but some do anyway). 5428 5429 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5430 Aviram, with additional investigation by Steven Collison and Andrew 5431 Hourselt. It was reported to OpenSSL on 10th December 2018. 5432 ([CVE-2019-1559]) 5433 5434 *Matt Caswell* 5435 5436 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5437 5438 *Richard Levitte* 5439 5440### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5441 5442 * Microarchitecture timing vulnerability in ECC scalar multiplication 5443 5444 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5445 shown to be vulnerable to a microarchitecture timing side channel attack. 5446 An attacker with sufficient access to mount local timing attacks during 5447 ECDSA signature generation could recover the private key. 5448 5449 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5450 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5451 Nicola Tuveri. 5452 ([CVE-2018-5407]) 5453 5454 *Billy Brumley* 5455 5456 * Timing vulnerability in DSA signature generation 5457 5458 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5459 timing side channel attack. An attacker could use variations in the signing 5460 algorithm to recover the private key. 5461 5462 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5463 ([CVE-2018-0734]) 5464 5465 *Paul Dale* 5466 5467 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5468 Module, accidentally introduced while backporting security fixes from the 5469 development branch and hindering the use of ECC in FIPS mode. 5470 5471 *Nicola Tuveri* 5472 5473### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5474 5475 * Client DoS due to large DH parameter 5476 5477 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5478 malicious server can send a very large prime value to the client. This will 5479 cause the client to spend an unreasonably long period of time generating a 5480 key for this prime resulting in a hang until the client has finished. This 5481 could be exploited in a Denial Of Service attack. 5482 5483 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5484 ([CVE-2018-0732]) 5485 5486 *Guido Vranken* 5487 5488 * Cache timing vulnerability in RSA Key Generation 5489 5490 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5491 a cache timing side channel attack. An attacker with sufficient access to 5492 mount cache timing attacks during the RSA key generation process could 5493 recover the private key. 5494 5495 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5496 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5497 ([CVE-2018-0737]) 5498 5499 *Billy Brumley* 5500 5501 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5502 parameter is no longer accepted, as it leads to a corrupt table. NULL 5503 pem_str is reserved for alias entries only. 5504 5505 *Richard Levitte* 5506 5507 * Revert blinding in ECDSA sign and instead make problematic addition 5508 length-invariant. Switch even to fixed-length Montgomery multiplication. 5509 5510 *Andy Polyakov* 5511 5512 * Change generating and checking of primes so that the error rate of not 5513 being prime depends on the intended use based on the size of the input. 5514 For larger primes this will result in more rounds of Miller-Rabin. 5515 The maximal error rate for primes with more than 1080 bits is lowered 5516 to 2^-128. 5517 5518 *Kurt Roeckx, Annie Yousar* 5519 5520 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5521 5522 *Kurt Roeckx* 5523 5524 * Add blinding to ECDSA and DSA signatures to protect against side channel 5525 attacks discovered by Keegan Ryan (NCC Group). 5526 5527 *Matt Caswell* 5528 5529 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5530 now allow empty (zero character) pass phrases. 5531 5532 *Richard Levitte* 5533 5534 * Certificate time validation (X509_cmp_time) enforces stricter 5535 compliance with RFC 5280. Fractional seconds and timezone offsets 5536 are no longer allowed. 5537 5538 *Emilia Käsper* 5539 5540### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5541 5542 * Constructed ASN.1 types with a recursive definition could exceed the stack 5543 5544 Constructed ASN.1 types with a recursive definition (such as can be found 5545 in PKCS7) could eventually exceed the stack given malicious input with 5546 excessive recursion. This could result in a Denial Of Service attack. There 5547 are no such structures used within SSL/TLS that come from untrusted sources 5548 so this is considered safe. 5549 5550 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5551 project. 5552 ([CVE-2018-0739]) 5553 5554 *Matt Caswell* 5555 5556### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5557 5558 * Read/write after SSL object in error state 5559 5560 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5561 mechanism. The intent was that if a fatal error occurred during a handshake 5562 then OpenSSL would move into the error state and would immediately fail if 5563 you attempted to continue the handshake. This works as designed for the 5564 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5565 SSL_connect()), however due to a bug it does not work correctly if 5566 SSL_read() or SSL_write() is called directly. In that scenario, if the 5567 handshake fails then a fatal error will be returned in the initial function 5568 call. If SSL_read()/SSL_write() is subsequently called by the application 5569 for the same SSL object then it will succeed and the data is passed without 5570 being decrypted/encrypted directly from the SSL/TLS record layer. 5571 5572 In order to exploit this issue an application bug would have to be present 5573 that resulted in a call to SSL_read()/SSL_write() being issued after having 5574 already received a fatal error. 5575 5576 This issue was reported to OpenSSL by David Benjamin (Google). 5577 ([CVE-2017-3737]) 5578 5579 *Matt Caswell* 5580 5581 * rsaz_1024_mul_avx2 overflow bug on x86_64 5582 5583 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5584 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5585 Analysis suggests that attacks against RSA and DSA as a result of this 5586 defect would be very difficult to perform and are not believed likely. 5587 Attacks against DH1024 are considered just feasible, because most of the 5588 work necessary to deduce information about a private key may be performed 5589 offline. The amount of resources required for such an attack would be 5590 significant. However, for an attack on TLS to be meaningful, the server 5591 would have to share the DH1024 private key among multiple clients, which is 5592 no longer an option since CVE-2016-0701. 5593 5594 This only affects processors that support the AVX2 but not ADX extensions 5595 like Intel Haswell (4th generation). 5596 5597 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5598 was originally found via the OSS-Fuzz project. 5599 ([CVE-2017-3738]) 5600 5601 *Andy Polyakov* 5602 5603### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5604 5605 * bn_sqrx8x_internal carry bug on x86_64 5606 5607 There is a carry propagating bug in the x86_64 Montgomery squaring 5608 procedure. No EC algorithms are affected. Analysis suggests that attacks 5609 against RSA and DSA as a result of this defect would be very difficult to 5610 perform and are not believed likely. Attacks against DH are considered just 5611 feasible (although very difficult) because most of the work necessary to 5612 deduce information about a private key may be performed offline. The amount 5613 of resources required for such an attack would be very significant and 5614 likely only accessible to a limited number of attackers. An attacker would 5615 additionally need online access to an unpatched system using the target 5616 private key in a scenario with persistent DH parameters and a private 5617 key that is shared between multiple clients. 5618 5619 This only affects processors that support the BMI1, BMI2 and ADX extensions 5620 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5621 5622 This issue was reported to OpenSSL by the OSS-Fuzz project. 5623 ([CVE-2017-3736]) 5624 5625 *Andy Polyakov* 5626 5627 * Malformed X.509 IPAddressFamily could cause OOB read 5628 5629 If an X.509 certificate has a malformed IPAddressFamily extension, 5630 OpenSSL could do a one-byte buffer overread. The most likely result 5631 would be an erroneous display of the certificate in text format. 5632 5633 This issue was reported to OpenSSL by the OSS-Fuzz project. 5634 5635 *Rich Salz* 5636 5637### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5638 5639 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5640 platform rather than 'mingw'. 5641 5642 *Richard Levitte* 5643 5644### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5645 5646 * Truncated packet could crash via OOB read 5647 5648 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5649 cipher is being used, then a truncated packet can cause that host to 5650 perform an out-of-bounds read, usually resulting in a crash. 5651 5652 This issue was reported to OpenSSL by Robert Święcki of Google. 5653 ([CVE-2017-3731]) 5654 5655 *Andy Polyakov* 5656 5657 * BN_mod_exp may produce incorrect results on x86_64 5658 5659 There is a carry propagating bug in the x86_64 Montgomery squaring 5660 procedure. No EC algorithms are affected. Analysis suggests that attacks 5661 against RSA and DSA as a result of this defect would be very difficult to 5662 perform and are not believed likely. Attacks against DH are considered just 5663 feasible (although very difficult) because most of the work necessary to 5664 deduce information about a private key may be performed offline. The amount 5665 of resources required for such an attack would be very significant and 5666 likely only accessible to a limited number of attackers. An attacker would 5667 additionally need online access to an unpatched system using the target 5668 private key in a scenario with persistent DH parameters and a private 5669 key that is shared between multiple clients. For example this can occur by 5670 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5671 similar to CVE-2015-3193 but must be treated as a separate problem. 5672 5673 This issue was reported to OpenSSL by the OSS-Fuzz project. 5674 ([CVE-2017-3732]) 5675 5676 *Andy Polyakov* 5677 5678 * Montgomery multiplication may produce incorrect results 5679 5680 There is a carry propagating bug in the Broadwell-specific Montgomery 5681 multiplication procedure that handles input lengths divisible by, but 5682 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5683 and DH private keys are impossible. This is because the subroutine in 5684 question is not used in operations with the private key itself and an input 5685 of the attacker's direct choice. Otherwise the bug can manifest itself as 5686 transient authentication and key negotiation failures or reproducible 5687 erroneous outcome of public-key operations with specially crafted input. 5688 Among EC algorithms only Brainpool P-512 curves are affected and one 5689 presumably can attack ECDH key negotiation. Impact was not analyzed in 5690 detail, because pre-requisites for attack are considered unlikely. Namely 5691 multiple clients have to choose the curve in question and the server has to 5692 share the private key among them, neither of which is default behaviour. 5693 Even then only clients that chose the curve will be affected. 5694 5695 This issue was publicly reported as transient failures and was not 5696 initially recognized as a security issue. Thanks to Richard Morgan for 5697 providing reproducible case. 5698 ([CVE-2016-7055]) 5699 5700 *Andy Polyakov* 5701 5702 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5703 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5704 prevent issues where no progress is being made and the peer continually 5705 sends unrecognised record types, using up resources processing them. 5706 5707 *Matt Caswell* 5708 5709### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5710 5711 * Missing CRL sanity check 5712 5713 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5714 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5715 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5716 5717 This issue only affects the OpenSSL 1.0.2i 5718 ([CVE-2016-7052]) 5719 5720 *Matt Caswell* 5721 5722### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5723 5724 * OCSP Status Request extension unbounded memory growth 5725 5726 A malicious client can send an excessively large OCSP Status Request 5727 extension. If that client continually requests renegotiation, sending a 5728 large OCSP Status Request extension each time, then there will be unbounded 5729 memory growth on the server. This will eventually lead to a Denial Of 5730 Service attack through memory exhaustion. Servers with a default 5731 configuration are vulnerable even if they do not support OCSP. Builds using 5732 the "no-ocsp" build time option are not affected. 5733 5734 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5735 ([CVE-2016-6304]) 5736 5737 *Matt Caswell* 5738 5739 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5740 HIGH to MEDIUM. 5741 5742 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5743 Leurent (INRIA) 5744 ([CVE-2016-2183]) 5745 5746 *Rich Salz* 5747 5748 * OOB write in MDC2_Update() 5749 5750 An overflow can occur in MDC2_Update() either if called directly or 5751 through the EVP_DigestUpdate() function using MDC2. If an attacker 5752 is able to supply very large amounts of input data after a previous 5753 call to EVP_EncryptUpdate() with a partial block then a length check 5754 can overflow resulting in a heap corruption. 5755 5756 The amount of data needed is comparable to SIZE_MAX which is impractical 5757 on most platforms. 5758 5759 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5760 ([CVE-2016-6303]) 5761 5762 *Stephen Henson* 5763 5764 * Malformed SHA512 ticket DoS 5765 5766 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5767 DoS attack where a malformed ticket will result in an OOB read which will 5768 ultimately crash. 5769 5770 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5771 a custom server callback and ticket lookup mechanism. 5772 5773 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5774 ([CVE-2016-6302]) 5775 5776 *Stephen Henson* 5777 5778 * OOB write in BN_bn2dec() 5779 5780 The function BN_bn2dec() does not check the return value of BN_div_word(). 5781 This can cause an OOB write if an application uses this function with an 5782 overly large BIGNUM. This could be a problem if an overly large certificate 5783 or CRL is printed out from an untrusted source. TLS is not affected because 5784 record limits will reject an oversized certificate before it is parsed. 5785 5786 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5787 ([CVE-2016-2182]) 5788 5789 *Stephen Henson* 5790 5791 * OOB read in TS_OBJ_print_bio() 5792 5793 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5794 the total length the OID text representation would use and not the amount 5795 of data written. This will result in OOB reads when large OIDs are 5796 presented. 5797 5798 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5799 ([CVE-2016-2180]) 5800 5801 *Stephen Henson* 5802 5803 * Pointer arithmetic undefined behaviour 5804 5805 Avoid some undefined pointer arithmetic 5806 5807 A common idiom in the codebase is to check limits in the following manner: 5808 "p + len > limit" 5809 5810 Where "p" points to some malloc'd data of SIZE bytes and 5811 limit == p + SIZE 5812 5813 "len" here could be from some externally supplied data (e.g. from a TLS 5814 message). 5815 5816 The rules of C pointer arithmetic are such that "p + len" is only well 5817 defined where len <= SIZE. Therefore the above idiom is actually 5818 undefined behaviour. 5819 5820 For example this could cause problems if some malloc implementation 5821 provides an address for "p" such that "p + len" actually overflows for 5822 values of len that are too big and therefore p + len < limit. 5823 5824 This issue was reported to OpenSSL by Guido Vranken 5825 ([CVE-2016-2177]) 5826 5827 *Matt Caswell* 5828 5829 * Constant time flag not preserved in DSA signing 5830 5831 Operations in the DSA signing algorithm should run in constant time in 5832 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5833 implementation means that a non-constant time codepath is followed for 5834 certain operations. This has been demonstrated through a cache-timing 5835 attack to be sufficient for an attacker to recover the private DSA key. 5836 5837 This issue was reported by César Pereida (Aalto University), Billy Brumley 5838 (Tampere University of Technology), and Yuval Yarom (The University of 5839 Adelaide and NICTA). 5840 ([CVE-2016-2178]) 5841 5842 *César Pereida* 5843 5844 * DTLS buffered message DoS 5845 5846 In a DTLS connection where handshake messages are delivered out-of-order 5847 those messages that OpenSSL is not yet ready to process will be buffered 5848 for later use. Under certain circumstances, a flaw in the logic means that 5849 those messages do not get removed from the buffer even though the handshake 5850 has been completed. An attacker could force up to approx. 15 messages to 5851 remain in the buffer when they are no longer required. These messages will 5852 be cleared when the DTLS connection is closed. The default maximum size for 5853 a message is 100k. Therefore the attacker could force an additional 1500k 5854 to be consumed per connection. By opening many simulataneous connections an 5855 attacker could cause a DoS attack through memory exhaustion. 5856 5857 This issue was reported to OpenSSL by Quan Luo. 5858 ([CVE-2016-2179]) 5859 5860 *Matt Caswell* 5861 5862 * DTLS replay protection DoS 5863 5864 A flaw in the DTLS replay attack protection mechanism means that records 5865 that arrive for future epochs update the replay protection "window" before 5866 the MAC for the record has been validated. This could be exploited by an 5867 attacker by sending a record for the next epoch (which does not have to 5868 decrypt or have a valid MAC), with a very large sequence number. This means 5869 that all subsequent legitimate packets are dropped causing a denial of 5870 service for a specific DTLS connection. 5871 5872 This issue was reported to OpenSSL by the OCAP audit team. 5873 ([CVE-2016-2181]) 5874 5875 *Matt Caswell* 5876 5877 * Certificate message OOB reads 5878 5879 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5880 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5881 theoretical DoS risk but this has not been observed in practice on common 5882 platforms. 5883 5884 The messages affected are client certificate, client certificate request 5885 and server certificate. As a result the attack can only be performed 5886 against a client or a server which enables client authentication. 5887 5888 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5889 ([CVE-2016-6306]) 5890 5891 *Stephen Henson* 5892 5893### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5894 5895 * Prevent padding oracle in AES-NI CBC MAC check 5896 5897 A MITM attacker can use a padding oracle attack to decrypt traffic 5898 when the connection uses an AES CBC cipher and the server support 5899 AES-NI. 5900 5901 This issue was introduced as part of the fix for Lucky 13 padding 5902 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5903 constant time by making sure that always the same bytes are read and 5904 compared against either the MAC or padding bytes. But it no longer 5905 checked that there was enough data to have both the MAC and padding 5906 bytes. 5907 5908 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5909 5910 *Kurt Roeckx* 5911 5912 * Fix EVP_EncodeUpdate overflow 5913 5914 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5915 Base64 encoding of binary data. If an attacker is able to supply very large 5916 amounts of input data then a length check can overflow resulting in a heap 5917 corruption. 5918 5919 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5920 the `PEM_write_bio*` family of functions. These are mainly used within the 5921 OpenSSL command line applications, so any application which processes data 5922 from an untrusted source and outputs it as a PEM file should be considered 5923 vulnerable to this issue. User applications that call these APIs directly 5924 with large amounts of untrusted data may also be vulnerable. 5925 5926 This issue was reported by Guido Vranken. 5927 ([CVE-2016-2105]) 5928 5929 *Matt Caswell* 5930 5931 * Fix EVP_EncryptUpdate overflow 5932 5933 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5934 is able to supply very large amounts of input data after a previous call to 5935 EVP_EncryptUpdate() with a partial block then a length check can overflow 5936 resulting in a heap corruption. Following an analysis of all OpenSSL 5937 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5938 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5939 the first called function after an EVP_EncryptInit(), and therefore that 5940 specific call must be safe. The second form is where the length passed to 5941 EVP_EncryptUpdate() can be seen from the code to be some small value and 5942 therefore there is no possibility of an overflow. Since all instances are 5943 one of these two forms, it is believed that there can be no overflows in 5944 internal code due to this problem. It should be noted that 5945 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5946 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5947 of these calls have also been analysed too and it is believed there are no 5948 instances in internal usage where an overflow could occur. 5949 5950 This issue was reported by Guido Vranken. 5951 ([CVE-2016-2106]) 5952 5953 *Matt Caswell* 5954 5955 * Prevent ASN.1 BIO excessive memory allocation 5956 5957 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5958 a short invalid encoding can cause allocation of large amounts of memory 5959 potentially consuming excessive resources or exhausting memory. 5960 5961 Any application parsing untrusted data through d2i BIO functions is 5962 affected. The memory based functions such as d2i_X509() are *not* affected. 5963 Since the memory based functions are used by the TLS library, TLS 5964 applications are not affected. 5965 5966 This issue was reported by Brian Carpenter. 5967 ([CVE-2016-2109]) 5968 5969 *Stephen Henson* 5970 5971 * EBCDIC overread 5972 5973 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5974 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5975 in arbitrary stack data being returned in the buffer. 5976 5977 This issue was reported by Guido Vranken. 5978 ([CVE-2016-2176]) 5979 5980 *Matt Caswell* 5981 5982 * Modify behavior of ALPN to invoke callback after SNI/servername 5983 callback, such that updates to the SSL_CTX affect ALPN. 5984 5985 *Todd Short* 5986 5987 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5988 default. 5989 5990 *Kurt Roeckx* 5991 5992 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5993 methods are enabled and ssl2 is disabled the methods return NULL. 5994 5995 *Kurt Roeckx* 5996 5997### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5998 5999* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6000 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6001 provide any "EXPORT" or "LOW" strength ciphers. 6002 6003 *Viktor Dukhovni* 6004 6005* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6006 is by default disabled at build-time. Builds that are not configured with 6007 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6008 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6009 will need to explicitly call either of: 6010 6011 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 6012 or 6013 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 6014 6015 as appropriate. Even if either of those is used, or the application 6016 explicitly uses the version-specific SSLv2_method() or its client and 6017 server variants, SSLv2 ciphers vulnerable to exhaustive search key 6018 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 6019 ciphers, and SSLv2 56-bit DES are no longer available. 6020 ([CVE-2016-0800]) 6021 6022 *Viktor Dukhovni* 6023 6024 * Fix a double-free in DSA code 6025 6026 A double free bug was discovered when OpenSSL parses malformed DSA private 6027 keys and could lead to a DoS attack or memory corruption for applications 6028 that receive DSA private keys from untrusted sources. This scenario is 6029 considered rare. 6030 6031 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 6032 libFuzzer. 6033 ([CVE-2016-0705]) 6034 6035 *Stephen Henson* 6036 6037 * Disable SRP fake user seed to address a server memory leak. 6038 6039 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 6040 6041 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 6042 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 6043 was changed to ignore the "fake user" SRP seed, even if the seed 6044 is configured. 6045 6046 Users should use SRP_VBASE_get1_by_user instead. Note that in 6047 SRP_VBASE_get1_by_user, caller must free the returned value. Note 6048 also that even though configuring the SRP seed attempts to hide 6049 invalid usernames by continuing the handshake with fake 6050 credentials, this behaviour is not constant time and no strong 6051 guarantees are made that the handshake is indistinguishable from 6052 that of a valid user. 6053 ([CVE-2016-0798]) 6054 6055 *Emilia Käsper* 6056 6057 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 6058 6059 In the BN_hex2bn function the number of hex digits is calculated using an 6060 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 6061 large values of `i` this can result in `bn_expand` not allocating any 6062 memory because `i * 4` is negative. This can leave the internal BIGNUM data 6063 field as NULL leading to a subsequent NULL ptr deref. For very large values 6064 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 6065 In this case memory is allocated to the internal BIGNUM data field, but it 6066 is insufficiently sized leading to heap corruption. A similar issue exists 6067 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 6068 is ever called by user applications with very large untrusted hex/dec data. 6069 This is anticipated to be a rare occurrence. 6070 6071 All OpenSSL internal usage of these functions use data that is not expected 6072 to be untrusted, e.g. config file data or application command line 6073 arguments. If user developed applications generate config file data based 6074 on untrusted data then it is possible that this could also lead to security 6075 consequences. This is also anticipated to be rare. 6076 6077 This issue was reported to OpenSSL by Guido Vranken. 6078 ([CVE-2016-0797]) 6079 6080 *Matt Caswell* 6081 6082 * Fix memory issues in `BIO_*printf` functions 6083 6084 The internal `fmtstr` function used in processing a "%s" format string in 6085 the `BIO_*printf` functions could overflow while calculating the length of a 6086 string and cause an OOB read when printing very long strings. 6087 6088 Additionally the internal `doapr_outch` function can attempt to write to an 6089 OOB memory location (at an offset from the NULL pointer) in the event of a 6090 memory allocation failure. In 1.0.2 and below this could be caused where 6091 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 6092 could be in processing a very long "%s" format string. Memory leaks can 6093 also occur. 6094 6095 The first issue may mask the second issue dependent on compiler behaviour. 6096 These problems could enable attacks where large amounts of untrusted data 6097 is passed to the `BIO_*printf` functions. If applications use these functions 6098 in this way then they could be vulnerable. OpenSSL itself uses these 6099 functions when printing out human-readable dumps of ASN.1 data. Therefore 6100 applications that print this data could be vulnerable if the data is from 6101 untrusted sources. OpenSSL command line applications could also be 6102 vulnerable where they print out ASN.1 data, or if untrusted data is passed 6103 as command line arguments. 6104 6105 Libssl is not considered directly vulnerable. Additionally certificates etc 6106 received via remote connections via libssl are also unlikely to be able to 6107 trigger these issues because of message size limits enforced within libssl. 6108 6109 This issue was reported to OpenSSL Guido Vranken. 6110 ([CVE-2016-0799]) 6111 6112 *Matt Caswell* 6113 6114 * Side channel attack on modular exponentiation 6115 6116 A side-channel attack was found which makes use of cache-bank conflicts on 6117 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 6118 of RSA keys. The ability to exploit this issue is limited as it relies on 6119 an attacker who has control of code in a thread running on the same 6120 hyper-threaded core as the victim thread which is performing decryptions. 6121 6122 This issue was reported to OpenSSL by Yuval Yarom, The University of 6123 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 6124 Nadia Heninger, University of Pennsylvania with more information at 6125 <http://cachebleed.info>. 6126 ([CVE-2016-0702]) 6127 6128 *Andy Polyakov* 6129 6130 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 6131 if no keysize is specified with default_bits. This fixes an 6132 omission in an earlier change that changed all RSA/DSA key generation 6133 commands to use 2048 bits by default. 6134 6135 *Emilia Käsper* 6136 6137### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 6138 6139 * DH small subgroups 6140 6141 Historically OpenSSL only ever generated DH parameters based on "safe" 6142 primes. More recently (in version 1.0.2) support was provided for 6143 generating X9.42 style parameter files such as those required for RFC 5114 6144 support. The primes used in such files may not be "safe". Where an 6145 application is using DH configured with parameters based on primes that are 6146 not "safe" then an attacker could use this fact to find a peer's private 6147 DH exponent. This attack requires that the attacker complete multiple 6148 handshakes in which the peer uses the same private DH exponent. For example 6149 this could be used to discover a TLS server's private DH exponent if it's 6150 reusing the private DH exponent or it's using a static DH ciphersuite. 6151 6152 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 6153 TLS. It is not on by default. If the option is not set then the server 6154 reuses the same private DH exponent for the life of the server process and 6155 would be vulnerable to this attack. It is believed that many popular 6156 applications do set this option and would therefore not be at risk. 6157 6158 The fix for this issue adds an additional check where a "q" parameter is 6159 available (as is the case in X9.42 based parameters). This detects the 6160 only known attack, and is the only possible defense for static DH 6161 ciphersuites. This could have some performance impact. 6162 6163 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 6164 default and cannot be disabled. This could have some performance impact. 6165 6166 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 6167 ([CVE-2016-0701]) 6168 6169 *Matt Caswell* 6170 6171 * SSLv2 doesn't block disabled ciphers 6172 6173 A malicious client can negotiate SSLv2 ciphers that have been disabled on 6174 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 6175 been disabled, provided that the SSLv2 protocol was not also disabled via 6176 SSL_OP_NO_SSLv2. 6177 6178 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 6179 and Sebastian Schinzel. 6180 ([CVE-2015-3197]) 6181 6182 *Viktor Dukhovni* 6183 6184### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 6185 6186 * BN_mod_exp may produce incorrect results on x86_64 6187 6188 There is a carry propagating bug in the x86_64 Montgomery squaring 6189 procedure. No EC algorithms are affected. Analysis suggests that attacks 6190 against RSA and DSA as a result of this defect would be very difficult to 6191 perform and are not believed likely. Attacks against DH are considered just 6192 feasible (although very difficult) because most of the work necessary to 6193 deduce information about a private key may be performed offline. The amount 6194 of resources required for such an attack would be very significant and 6195 likely only accessible to a limited number of attackers. An attacker would 6196 additionally need online access to an unpatched system using the target 6197 private key in a scenario with persistent DH parameters and a private 6198 key that is shared between multiple clients. For example this can occur by 6199 default in OpenSSL DHE based SSL/TLS ciphersuites. 6200 6201 This issue was reported to OpenSSL by Hanno Böck. 6202 ([CVE-2015-3193]) 6203 6204 *Andy Polyakov* 6205 6206 * Certificate verify crash with missing PSS parameter 6207 6208 The signature verification routines will crash with a NULL pointer 6209 dereference if presented with an ASN.1 signature using the RSA PSS 6210 algorithm and absent mask generation function parameter. Since these 6211 routines are used to verify certificate signature algorithms this can be 6212 used to crash any certificate verification operation and exploited in a 6213 DoS attack. Any application which performs certificate verification is 6214 vulnerable including OpenSSL clients and servers which enable client 6215 authentication. 6216 6217 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 6218 ([CVE-2015-3194]) 6219 6220 *Stephen Henson* 6221 6222 * X509_ATTRIBUTE memory leak 6223 6224 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 6225 memory. This structure is used by the PKCS#7 and CMS routines so any 6226 application which reads PKCS#7 or CMS data from untrusted sources is 6227 affected. SSL/TLS is not affected. 6228 6229 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 6230 libFuzzer. 6231 ([CVE-2015-3195]) 6232 6233 *Stephen Henson* 6234 6235 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 6236 This changes the decoding behaviour for some invalid messages, 6237 though the change is mostly in the more lenient direction, and 6238 legacy behaviour is preserved as much as possible. 6239 6240 *Emilia Käsper* 6241 6242 * In DSA_generate_parameters_ex, if the provided seed is too short, 6243 return an error 6244 6245 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 6246 6247### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6248 6249 * Alternate chains certificate forgery 6250 6251 During certificate verification, OpenSSL will attempt to find an 6252 alternative certificate chain if the first attempt to build such a chain 6253 fails. An error in the implementation of this logic can mean that an 6254 attacker could cause certain checks on untrusted certificates to be 6255 bypassed, such as the CA flag, enabling them to use a valid leaf 6256 certificate to act as a CA and "issue" an invalid certificate. 6257 6258 This issue was reported to OpenSSL by Adam Langley/David Benjamin 6259 (Google/BoringSSL). 6260 6261 *Matt Caswell* 6262 6263### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 6264 6265 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 6266 incompatibility in the handling of HMAC. The previous ABI has now been 6267 restored. 6268 6269 *Matt Caswell* 6270 6271### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 6272 6273 * Malformed ECParameters causes infinite loop 6274 6275 When processing an ECParameters structure OpenSSL enters an infinite loop 6276 if the curve specified is over a specially malformed binary polynomial 6277 field. 6278 6279 This can be used to perform denial of service against any 6280 system which processes public keys, certificate requests or 6281 certificates. This includes TLS clients and TLS servers with 6282 client authentication enabled. 6283 6284 This issue was reported to OpenSSL by Joseph Barr-Pixton. 6285 ([CVE-2015-1788]) 6286 6287 *Andy Polyakov* 6288 6289 * Exploitable out-of-bounds read in X509_cmp_time 6290 6291 X509_cmp_time does not properly check the length of the ASN1_TIME 6292 string and can read a few bytes out of bounds. In addition, 6293 X509_cmp_time accepts an arbitrary number of fractional seconds in the 6294 time string. 6295 6296 An attacker can use this to craft malformed certificates and CRLs of 6297 various sizes and potentially cause a segmentation fault, resulting in 6298 a DoS on applications that verify certificates or CRLs. TLS clients 6299 that verify CRLs are affected. TLS clients and servers with client 6300 authentication enabled may be affected if they use custom verification 6301 callbacks. 6302 6303 This issue was reported to OpenSSL by Robert Swiecki (Google), and 6304 independently by Hanno Böck. 6305 ([CVE-2015-1789]) 6306 6307 *Emilia Käsper* 6308 6309 * PKCS7 crash with missing EnvelopedContent 6310 6311 The PKCS#7 parsing code does not handle missing inner EncryptedContent 6312 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 6313 with missing content and trigger a NULL pointer dereference on parsing. 6314 6315 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 6316 structures from untrusted sources are affected. OpenSSL clients and 6317 servers are not affected. 6318 6319 This issue was reported to OpenSSL by Michal Zalewski (Google). 6320 ([CVE-2015-1790]) 6321 6322 *Emilia Käsper* 6323 6324 * CMS verify infinite loop with unknown hash function 6325 6326 When verifying a signedData message the CMS code can enter an infinite loop 6327 if presented with an unknown hash function OID. This can be used to perform 6328 denial of service against any system which verifies signedData messages using 6329 the CMS code. 6330 This issue was reported to OpenSSL by Johannes Bauer. 6331 ([CVE-2015-1792]) 6332 6333 *Stephen Henson* 6334 6335 * Race condition handling NewSessionTicket 6336 6337 If a NewSessionTicket is received by a multi-threaded client when attempting to 6338 reuse a previous ticket then a race condition can occur potentially leading to 6339 a double free of the ticket data. 6340 ([CVE-2015-1791]) 6341 6342 *Matt Caswell* 6343 6344 * Only support 256-bit or stronger elliptic curves with the 6345 'ecdh_auto' setting (server) or by default (client). Of supported 6346 curves, prefer P-256 (both). 6347 6348 *Emilia Kasper* 6349 6350### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 6351 6352 * ClientHello sigalgs DoS fix 6353 6354 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 6355 invalid signature algorithms extension a NULL pointer dereference will 6356 occur. This can be exploited in a DoS attack against the server. 6357 6358 This issue was was reported to OpenSSL by David Ramos of Stanford 6359 University. 6360 ([CVE-2015-0291]) 6361 6362 *Stephen Henson and Matt Caswell* 6363 6364 * Multiblock corrupted pointer fix 6365 6366 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 6367 feature only applies on 64 bit x86 architecture platforms that support AES 6368 NI instructions. A defect in the implementation of "multiblock" can cause 6369 OpenSSL's internal write buffer to become incorrectly set to NULL when 6370 using non-blocking IO. Typically, when the user application is using a 6371 socket BIO for writing, this will only result in a failed connection. 6372 However if some other BIO is used then it is likely that a segmentation 6373 fault will be triggered, thus enabling a potential DoS attack. 6374 6375 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6376 ([CVE-2015-0290]) 6377 6378 *Matt Caswell* 6379 6380 * Segmentation fault in DTLSv1_listen fix 6381 6382 The DTLSv1_listen function is intended to be stateless and processes the 6383 initial ClientHello from many peers. It is common for user code to loop 6384 over the call to DTLSv1_listen until a valid ClientHello is received with 6385 an associated cookie. A defect in the implementation of DTLSv1_listen means 6386 that state is preserved in the SSL object from one invocation to the next 6387 that can lead to a segmentation fault. Errors processing the initial 6388 ClientHello can trigger this scenario. An example of such an error could be 6389 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6390 server. 6391 6392 This issue was reported to OpenSSL by Per Allansson. 6393 ([CVE-2015-0207]) 6394 6395 *Matt Caswell* 6396 6397 * Segmentation fault in ASN1_TYPE_cmp fix 6398 6399 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6400 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6401 certificate signature algorithm consistency this can be used to crash any 6402 certificate verification operation and exploited in a DoS attack. Any 6403 application which performs certificate verification is vulnerable including 6404 OpenSSL clients and servers which enable client authentication. 6405 ([CVE-2015-0286]) 6406 6407 *Stephen Henson* 6408 6409 * Segmentation fault for invalid PSS parameters fix 6410 6411 The signature verification routines will crash with a NULL pointer 6412 dereference if presented with an ASN.1 signature using the RSA PSS 6413 algorithm and invalid parameters. Since these routines are used to verify 6414 certificate signature algorithms this can be used to crash any 6415 certificate verification operation and exploited in a DoS attack. Any 6416 application which performs certificate verification is vulnerable including 6417 OpenSSL clients and servers which enable client authentication. 6418 6419 This issue was was reported to OpenSSL by Brian Carpenter. 6420 ([CVE-2015-0208]) 6421 6422 *Stephen Henson* 6423 6424 * ASN.1 structure reuse memory corruption fix 6425 6426 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6427 memory corruption via an invalid write. Such reuse is and has been 6428 strongly discouraged and is believed to be rare. 6429 6430 Applications that parse structures containing CHOICE or ANY DEFINED BY 6431 components may be affected. Certificate parsing (d2i_X509 and related 6432 functions) are however not affected. OpenSSL clients and servers are 6433 not affected. 6434 ([CVE-2015-0287]) 6435 6436 *Stephen Henson* 6437 6438 * PKCS7 NULL pointer dereferences fix 6439 6440 The PKCS#7 parsing code does not handle missing outer ContentInfo 6441 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6442 missing content and trigger a NULL pointer dereference on parsing. 6443 6444 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6445 otherwise parse PKCS#7 structures from untrusted sources are 6446 affected. OpenSSL clients and servers are not affected. 6447 6448 This issue was reported to OpenSSL by Michal Zalewski (Google). 6449 ([CVE-2015-0289]) 6450 6451 *Emilia Käsper* 6452 6453 * DoS via reachable assert in SSLv2 servers fix 6454 6455 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6456 servers that both support SSLv2 and enable export cipher suites by sending 6457 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6458 6459 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6460 (OpenSSL development team). 6461 ([CVE-2015-0293]) 6462 6463 *Emilia Käsper* 6464 6465 * Empty CKE with client auth and DHE fix 6466 6467 If client auth is used then a server can seg fault in the event of a DHE 6468 ciphersuite being selected and a zero length ClientKeyExchange message 6469 being sent by the client. This could be exploited in a DoS attack. 6470 ([CVE-2015-1787]) 6471 6472 *Matt Caswell* 6473 6474 * Handshake with unseeded PRNG fix 6475 6476 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6477 with an unseeded PRNG. The conditions are: 6478 - The client is on a platform where the PRNG has not been seeded 6479 automatically, and the user has not seeded manually 6480 - A protocol specific client method version has been used (i.e. not 6481 SSL_client_methodv23) 6482 - A ciphersuite is used that does not require additional random data from 6483 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6484 6485 If the handshake succeeds then the client random that has been used will 6486 have been generated from a PRNG with insufficient entropy and therefore the 6487 output may be predictable. 6488 6489 For example using the following command with an unseeded openssl will 6490 succeed on an unpatched platform: 6491 6492 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6493 ([CVE-2015-0285]) 6494 6495 *Matt Caswell* 6496 6497 * Use After Free following d2i_ECPrivatekey error fix 6498 6499 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6500 could cause a use after free condition. This, in turn, could cause a double 6501 free in several private key parsing functions (such as d2i_PrivateKey 6502 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6503 for applications that receive EC private keys from untrusted 6504 sources. This scenario is considered rare. 6505 6506 This issue was discovered by the BoringSSL project and fixed in their 6507 commit 517073cd4b. 6508 ([CVE-2015-0209]) 6509 6510 *Matt Caswell* 6511 6512 * X509_to_X509_REQ NULL pointer deref fix 6513 6514 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6515 the certificate key is invalid. This function is rarely used in practice. 6516 6517 This issue was discovered by Brian Carpenter. 6518 ([CVE-2015-0288]) 6519 6520 *Stephen Henson* 6521 6522 * Removed the export ciphers from the DEFAULT ciphers 6523 6524 *Kurt Roeckx* 6525 6526### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6527 6528 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6529 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6530 So far those who have to target multiple platforms would compromise 6531 and argue that binary targeting say ARMv5 would still execute on 6532 ARMv8. "Universal" build resolves this compromise by providing 6533 near-optimal performance even on newer platforms. 6534 6535 *Andy Polyakov* 6536 6537 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6538 (other platforms pending). 6539 6540 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6541 6542 * Add support for the SignedCertificateTimestampList certificate and 6543 OCSP response extensions from RFC6962. 6544 6545 *Rob Stradling* 6546 6547 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6548 for corner cases. (Certain input points at infinity could lead to 6549 bogus results, with non-infinity inputs mapped to infinity too.) 6550 6551 *Bodo Moeller* 6552 6553 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6554 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6555 common cases are optimized and there still is room for further 6556 improvements. Vector Permutation AES for Altivec is also added. 6557 6558 *Andy Polyakov* 6559 6560 * Add support for little-endian ppc64 Linux target. 6561 6562 *Marcelo Cerri (IBM)* 6563 6564 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6565 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6566 are optimized and there still is room for further improvements. 6567 Both 32- and 64-bit modes are supported. 6568 6569 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6570 6571 * Improved ARMv7 NEON support. 6572 6573 *Andy Polyakov* 6574 6575 * Support for SPARC Architecture 2011 crypto extensions, first 6576 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6577 SHA256/512, MD5, GHASH and modular exponentiation. 6578 6579 *Andy Polyakov, David Miller* 6580 6581 * Accelerated modular exponentiation for Intel processors, a.k.a. 6582 RSAZ. 6583 6584 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6585 6586 * Support for new and upcoming Intel processors, including AVX2, 6587 BMI and SHA ISA extensions. This includes additional "stitched" 6588 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6589 for TLS encrypt. 6590 6591 This work was sponsored by Intel Corp. 6592 6593 *Andy Polyakov* 6594 6595 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6596 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6597 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6598 6599 *Steve Henson* 6600 6601 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6602 this fixes a limitation in previous versions of OpenSSL. 6603 6604 *Steve Henson* 6605 6606 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6607 MGF1 digest and OAEP label. 6608 6609 *Steve Henson* 6610 6611 * Add EVP support for key wrapping algorithms, to avoid problems with 6612 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6613 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6614 algorithms and include tests cases. 6615 6616 *Steve Henson* 6617 6618 * Add functions to allocate and set the fields of an ECDSA_METHOD 6619 structure. 6620 6621 *Douglas E. Engert, Steve Henson* 6622 6623 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6624 difference in days and seconds between two tm or ASN1_TIME structures. 6625 6626 *Steve Henson* 6627 6628 * Add -rev test option to s_server to just reverse order of characters 6629 received by client and send back to server. Also prints an abbreviated 6630 summary of the connection parameters. 6631 6632 *Steve Henson* 6633 6634 * New option -brief for s_client and s_server to print out a brief summary 6635 of connection parameters. 6636 6637 *Steve Henson* 6638 6639 * Add callbacks for arbitrary TLS extensions. 6640 6641 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6642 6643 * New option -crl_download in several openssl utilities to download CRLs 6644 from CRLDP extension in certificates. 6645 6646 *Steve Henson* 6647 6648 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6649 6650 *Steve Henson* 6651 6652 * New function X509_CRL_diff to generate a delta CRL from the difference 6653 of two full CRLs. Add support to "crl" utility. 6654 6655 *Steve Henson* 6656 6657 * New functions to set lookup_crls function and to retrieve 6658 X509_STORE from X509_STORE_CTX. 6659 6660 *Steve Henson* 6661 6662 * Print out deprecated issuer and subject unique ID fields in 6663 certificates. 6664 6665 *Steve Henson* 6666 6667 * Extend OCSP I/O functions so they can be used for simple general purpose 6668 HTTP as well as OCSP. New wrapper function which can be used to download 6669 CRLs using the OCSP API. 6670 6671 *Steve Henson* 6672 6673 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6674 6675 *Steve Henson* 6676 6677 * `SSL_CONF*` functions. These provide a common framework for application 6678 configuration using configuration files or command lines. 6679 6680 *Steve Henson* 6681 6682 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6683 message callback and prints the results. Needs compile time option 6684 "enable-ssl-trace". New options to s_client and s_server to enable 6685 tracing. 6686 6687 *Steve Henson* 6688 6689 * New ctrl and macro to retrieve supported points extensions. 6690 Print out extension in s_server and s_client. 6691 6692 *Steve Henson* 6693 6694 * New functions to retrieve certificate signature and signature 6695 OID NID. 6696 6697 *Steve Henson* 6698 6699 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6700 client to OpenSSL. 6701 6702 *Steve Henson* 6703 6704 * New Suite B modes for TLS code. These use and enforce the requirements 6705 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6706 only use Suite B curves. The Suite B modes can be set by using the 6707 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6708 6709 *Steve Henson* 6710 6711 * New chain verification flags for Suite B levels of security. Check 6712 algorithms are acceptable when flags are set in X509_verify_cert. 6713 6714 *Steve Henson* 6715 6716 * Make tls1_check_chain return a set of flags indicating checks passed 6717 by a certificate chain. Add additional tests to handle client 6718 certificates: checks for matching certificate type and issuer name 6719 comparison. 6720 6721 *Steve Henson* 6722 6723 * If an attempt is made to use a signature algorithm not in the peer 6724 preference list abort the handshake. If client has no suitable 6725 signature algorithms in response to a certificate request do not 6726 use the certificate. 6727 6728 *Steve Henson* 6729 6730 * If server EC tmp key is not in client preference list abort handshake. 6731 6732 *Steve Henson* 6733 6734 * Add support for certificate stores in CERT structure. This makes it 6735 possible to have different stores per SSL structure or one store in 6736 the parent SSL_CTX. Include distinct stores for certificate chain 6737 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6738 to build and store a certificate chain in CERT structure: returning 6739 an error if the chain cannot be built: this will allow applications 6740 to test if a chain is correctly configured. 6741 6742 Note: if the CERT based stores are not set then the parent SSL_CTX 6743 store is used to retain compatibility with existing behaviour. 6744 6745 *Steve Henson* 6746 6747 * New function ssl_set_client_disabled to set a ciphersuite disabled 6748 mask based on the current session, check mask when sending client 6749 hello and checking the requested ciphersuite. 6750 6751 *Steve Henson* 6752 6753 * New ctrls to retrieve and set certificate types in a certificate 6754 request message. Print out received values in s_client. If certificate 6755 types is not set with custom values set sensible values based on 6756 supported signature algorithms. 6757 6758 *Steve Henson* 6759 6760 * Support for distinct client and server supported signature algorithms. 6761 6762 *Steve Henson* 6763 6764 * Add certificate callback. If set this is called whenever a certificate 6765 is required by client or server. An application can decide which 6766 certificate chain to present based on arbitrary criteria: for example 6767 supported signature algorithms. Add very simple example to s_server. 6768 This fixes many of the problems and restrictions of the existing client 6769 certificate callback: for example you can now clear an existing 6770 certificate and specify the whole chain. 6771 6772 *Steve Henson* 6773 6774 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6775 the certificate can be used for (if anything). Set valid_flags field 6776 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6777 to have similar checks in it. 6778 6779 Add new "cert_flags" field to CERT structure and include a "strict mode". 6780 This enforces some TLS certificate requirements (such as only permitting 6781 certificate signature algorithms contained in the supported algorithms 6782 extension) which some implementations ignore: this option should be used 6783 with caution as it could cause interoperability issues. 6784 6785 *Steve Henson* 6786 6787 * Update and tidy signature algorithm extension processing. Work out 6788 shared signature algorithms based on preferences and peer algorithms 6789 and print them out in s_client and s_server. Abort handshake if no 6790 shared signature algorithms. 6791 6792 *Steve Henson* 6793 6794 * Add new functions to allow customised supported signature algorithms 6795 for SSL and SSL_CTX structures. Add options to s_client and s_server 6796 to support them. 6797 6798 *Steve Henson* 6799 6800 * New function SSL_certs_clear() to delete all references to certificates 6801 from an SSL structure. Before this once a certificate had been added 6802 it couldn't be removed. 6803 6804 *Steve Henson* 6805 6806 * Integrate hostname, email address and IP address checking with certificate 6807 verification. New verify options supporting checking in openssl utility. 6808 6809 *Steve Henson* 6810 6811 * Fixes and wildcard matching support to hostname and email checking 6812 functions. Add manual page. 6813 6814 *Florian Weimer (Red Hat Product Security Team)* 6815 6816 * New functions to check a hostname email or IP address against a 6817 certificate. Add options x509 utility to print results of checks against 6818 a certificate. 6819 6820 *Steve Henson* 6821 6822 * Fix OCSP checking. 6823 6824 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6825 6826 * Initial experimental support for explicitly trusted non-root CAs. 6827 OpenSSL still tries to build a complete chain to a root but if an 6828 intermediate CA has a trust setting included that is used. The first 6829 setting is used: whether to trust (e.g., -addtrust option to the x509 6830 utility) or reject. 6831 6832 *Steve Henson* 6833 6834 * Add -trusted_first option which attempts to find certificates in the 6835 trusted store even if an untrusted chain is also supplied. 6836 6837 *Steve Henson* 6838 6839 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6840 platform support for Linux and Android. 6841 6842 *Andy Polyakov* 6843 6844 * Support for linux-x32, ILP32 environment in x86_64 framework. 6845 6846 *Andy Polyakov* 6847 6848 * Experimental multi-implementation support for FIPS capable OpenSSL. 6849 When in FIPS mode the approved implementations are used as normal, 6850 when not in FIPS mode the internal unapproved versions are used instead. 6851 This means that the FIPS capable OpenSSL isn't forced to use the 6852 (often lower performance) FIPS implementations outside FIPS mode. 6853 6854 *Steve Henson* 6855 6856 * Transparently support X9.42 DH parameters when calling 6857 PEM_read_bio_DHparameters. This means existing applications can handle 6858 the new parameter format automatically. 6859 6860 *Steve Henson* 6861 6862 * Initial experimental support for X9.42 DH parameter format: mainly 6863 to support use of 'q' parameter for RFC5114 parameters. 6864 6865 *Steve Henson* 6866 6867 * Add DH parameters from RFC5114 including test data to dhtest. 6868 6869 *Steve Henson* 6870 6871 * Support for automatic EC temporary key parameter selection. If enabled 6872 the most preferred EC parameters are automatically used instead of 6873 hardcoded fixed parameters. Now a server just has to call: 6874 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6875 support ECDH and use the most appropriate parameters. 6876 6877 *Steve Henson* 6878 6879 * Enhance and tidy EC curve and point format TLS extension code. Use 6880 static structures instead of allocation if default values are used. 6881 New ctrls to set curves we wish to support and to retrieve shared curves. 6882 Print out shared curves in s_server. New options to s_server and s_client 6883 to set list of supported curves. 6884 6885 *Steve Henson* 6886 6887 * New ctrls to retrieve supported signature algorithms and 6888 supported curve values as an array of NIDs. Extend openssl utility 6889 to print out received values. 6890 6891 *Steve Henson* 6892 6893 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6894 between NIDs and the more common NIST names such as "P-256". Enhance 6895 ecparam utility and ECC method to recognise the NIST names for curves. 6896 6897 *Steve Henson* 6898 6899 * Enhance SSL/TLS certificate chain handling to support different 6900 chains for each certificate instead of one chain in the parent SSL_CTX. 6901 6902 *Steve Henson* 6903 6904 * Support for fixed DH ciphersuite client authentication: where both 6905 server and client use DH certificates with common parameters. 6906 6907 *Steve Henson* 6908 6909 * Support for fixed DH ciphersuites: those requiring DH server 6910 certificates. 6911 6912 *Steve Henson* 6913 6914 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6915 the certificate. 6916 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6917 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6918 X509_CINF_get_signature were reverted post internal team review. 6919 6920OpenSSL 1.0.1 6921------------- 6922 6923### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6924 6925 * OCSP Status Request extension unbounded memory growth 6926 6927 A malicious client can send an excessively large OCSP Status Request 6928 extension. If that client continually requests renegotiation, sending a 6929 large OCSP Status Request extension each time, then there will be unbounded 6930 memory growth on the server. This will eventually lead to a Denial Of 6931 Service attack through memory exhaustion. Servers with a default 6932 configuration are vulnerable even if they do not support OCSP. Builds using 6933 the "no-ocsp" build time option are not affected. 6934 6935 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6936 ([CVE-2016-6304]) 6937 6938 *Matt Caswell* 6939 6940 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6941 HIGH to MEDIUM. 6942 6943 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6944 Leurent (INRIA) 6945 ([CVE-2016-2183]) 6946 6947 *Rich Salz* 6948 6949 * OOB write in MDC2_Update() 6950 6951 An overflow can occur in MDC2_Update() either if called directly or 6952 through the EVP_DigestUpdate() function using MDC2. If an attacker 6953 is able to supply very large amounts of input data after a previous 6954 call to EVP_EncryptUpdate() with a partial block then a length check 6955 can overflow resulting in a heap corruption. 6956 6957 The amount of data needed is comparable to SIZE_MAX which is impractical 6958 on most platforms. 6959 6960 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6961 ([CVE-2016-6303]) 6962 6963 *Stephen Henson* 6964 6965 * Malformed SHA512 ticket DoS 6966 6967 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6968 DoS attack where a malformed ticket will result in an OOB read which will 6969 ultimately crash. 6970 6971 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6972 a custom server callback and ticket lookup mechanism. 6973 6974 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6975 ([CVE-2016-6302]) 6976 6977 *Stephen Henson* 6978 6979 * OOB write in BN_bn2dec() 6980 6981 The function BN_bn2dec() does not check the return value of BN_div_word(). 6982 This can cause an OOB write if an application uses this function with an 6983 overly large BIGNUM. This could be a problem if an overly large certificate 6984 or CRL is printed out from an untrusted source. TLS is not affected because 6985 record limits will reject an oversized certificate before it is parsed. 6986 6987 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6988 ([CVE-2016-2182]) 6989 6990 *Stephen Henson* 6991 6992 * OOB read in TS_OBJ_print_bio() 6993 6994 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6995 the total length the OID text representation would use and not the amount 6996 of data written. This will result in OOB reads when large OIDs are 6997 presented. 6998 6999 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7000 ([CVE-2016-2180]) 7001 7002 *Stephen Henson* 7003 7004 * Pointer arithmetic undefined behaviour 7005 7006 Avoid some undefined pointer arithmetic 7007 7008 A common idiom in the codebase is to check limits in the following manner: 7009 "p + len > limit" 7010 7011 Where "p" points to some malloc'd data of SIZE bytes and 7012 limit == p + SIZE 7013 7014 "len" here could be from some externally supplied data (e.g. from a TLS 7015 message). 7016 7017 The rules of C pointer arithmetic are such that "p + len" is only well 7018 defined where len <= SIZE. Therefore the above idiom is actually 7019 undefined behaviour. 7020 7021 For example this could cause problems if some malloc implementation 7022 provides an address for "p" such that "p + len" actually overflows for 7023 values of len that are too big and therefore p + len < limit. 7024 7025 This issue was reported to OpenSSL by Guido Vranken 7026 ([CVE-2016-2177]) 7027 7028 *Matt Caswell* 7029 7030 * Constant time flag not preserved in DSA signing 7031 7032 Operations in the DSA signing algorithm should run in constant time in 7033 order to avoid side channel attacks. A flaw in the OpenSSL DSA 7034 implementation means that a non-constant time codepath is followed for 7035 certain operations. This has been demonstrated through a cache-timing 7036 attack to be sufficient for an attacker to recover the private DSA key. 7037 7038 This issue was reported by César Pereida (Aalto University), Billy Brumley 7039 (Tampere University of Technology), and Yuval Yarom (The University of 7040 Adelaide and NICTA). 7041 ([CVE-2016-2178]) 7042 7043 *César Pereida* 7044 7045 * DTLS buffered message DoS 7046 7047 In a DTLS connection where handshake messages are delivered out-of-order 7048 those messages that OpenSSL is not yet ready to process will be buffered 7049 for later use. Under certain circumstances, a flaw in the logic means that 7050 those messages do not get removed from the buffer even though the handshake 7051 has been completed. An attacker could force up to approx. 15 messages to 7052 remain in the buffer when they are no longer required. These messages will 7053 be cleared when the DTLS connection is closed. The default maximum size for 7054 a message is 100k. Therefore the attacker could force an additional 1500k 7055 to be consumed per connection. By opening many simulataneous connections an 7056 attacker could cause a DoS attack through memory exhaustion. 7057 7058 This issue was reported to OpenSSL by Quan Luo. 7059 ([CVE-2016-2179]) 7060 7061 *Matt Caswell* 7062 7063 * DTLS replay protection DoS 7064 7065 A flaw in the DTLS replay attack protection mechanism means that records 7066 that arrive for future epochs update the replay protection "window" before 7067 the MAC for the record has been validated. This could be exploited by an 7068 attacker by sending a record for the next epoch (which does not have to 7069 decrypt or have a valid MAC), with a very large sequence number. This means 7070 that all subsequent legitimate packets are dropped causing a denial of 7071 service for a specific DTLS connection. 7072 7073 This issue was reported to OpenSSL by the OCAP audit team. 7074 ([CVE-2016-2181]) 7075 7076 *Matt Caswell* 7077 7078 * Certificate message OOB reads 7079 7080 In OpenSSL 1.0.2 and earlier some missing message length checks can result 7081 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 7082 theoretical DoS risk but this has not been observed in practice on common 7083 platforms. 7084 7085 The messages affected are client certificate, client certificate request 7086 and server certificate. As a result the attack can only be performed 7087 against a client or a server which enables client authentication. 7088 7089 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7090 ([CVE-2016-6306]) 7091 7092 *Stephen Henson* 7093 7094### Changes between 1.0.1s and 1.0.1t [3 May 2016] 7095 7096 * Prevent padding oracle in AES-NI CBC MAC check 7097 7098 A MITM attacker can use a padding oracle attack to decrypt traffic 7099 when the connection uses an AES CBC cipher and the server support 7100 AES-NI. 7101 7102 This issue was introduced as part of the fix for Lucky 13 padding 7103 attack ([CVE-2013-0169]). The padding check was rewritten to be in 7104 constant time by making sure that always the same bytes are read and 7105 compared against either the MAC or padding bytes. But it no longer 7106 checked that there was enough data to have both the MAC and padding 7107 bytes. 7108 7109 This issue was reported by Juraj Somorovsky using TLS-Attacker. 7110 ([CVE-2016-2107]) 7111 7112 *Kurt Roeckx* 7113 7114 * Fix EVP_EncodeUpdate overflow 7115 7116 An overflow can occur in the EVP_EncodeUpdate() function which is used for 7117 Base64 encoding of binary data. If an attacker is able to supply very large 7118 amounts of input data then a length check can overflow resulting in a heap 7119 corruption. 7120 7121 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 7122 the `PEM_write_bio*` family of functions. These are mainly used within the 7123 OpenSSL command line applications, so any application which processes data 7124 from an untrusted source and outputs it as a PEM file should be considered 7125 vulnerable to this issue. User applications that call these APIs directly 7126 with large amounts of untrusted data may also be vulnerable. 7127 7128 This issue was reported by Guido Vranken. 7129 ([CVE-2016-2105]) 7130 7131 *Matt Caswell* 7132 7133 * Fix EVP_EncryptUpdate overflow 7134 7135 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 7136 is able to supply very large amounts of input data after a previous call to 7137 EVP_EncryptUpdate() with a partial block then a length check can overflow 7138 resulting in a heap corruption. Following an analysis of all OpenSSL 7139 internal usage of the EVP_EncryptUpdate() function all usage is one of two 7140 forms. The first form is where the EVP_EncryptUpdate() call is known to be 7141 the first called function after an EVP_EncryptInit(), and therefore that 7142 specific call must be safe. The second form is where the length passed to 7143 EVP_EncryptUpdate() can be seen from the code to be some small value and 7144 therefore there is no possibility of an overflow. Since all instances are 7145 one of these two forms, it is believed that there can be no overflows in 7146 internal code due to this problem. It should be noted that 7147 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 7148 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 7149 of these calls have also been analysed too and it is believed there are no 7150 instances in internal usage where an overflow could occur. 7151 7152 This issue was reported by Guido Vranken. 7153 ([CVE-2016-2106]) 7154 7155 *Matt Caswell* 7156 7157 * Prevent ASN.1 BIO excessive memory allocation 7158 7159 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 7160 a short invalid encoding can casuse allocation of large amounts of memory 7161 potentially consuming excessive resources or exhausting memory. 7162 7163 Any application parsing untrusted data through d2i BIO functions is 7164 affected. The memory based functions such as d2i_X509() are *not* affected. 7165 Since the memory based functions are used by the TLS library, TLS 7166 applications are not affected. 7167 7168 This issue was reported by Brian Carpenter. 7169 ([CVE-2016-2109]) 7170 7171 *Stephen Henson* 7172 7173 * EBCDIC overread 7174 7175 ASN1 Strings that are over 1024 bytes can cause an overread in applications 7176 using the X509_NAME_oneline() function on EBCDIC systems. This could result 7177 in arbitrary stack data being returned in the buffer. 7178 7179 This issue was reported by Guido Vranken. 7180 ([CVE-2016-2176]) 7181 7182 *Matt Caswell* 7183 7184 * Modify behavior of ALPN to invoke callback after SNI/servername 7185 callback, such that updates to the SSL_CTX affect ALPN. 7186 7187 *Todd Short* 7188 7189 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 7190 default. 7191 7192 *Kurt Roeckx* 7193 7194 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 7195 methods are enabled and ssl2 is disabled the methods return NULL. 7196 7197 *Kurt Roeckx* 7198 7199### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 7200 7201* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 7202 Builds that are not configured with "enable-weak-ssl-ciphers" will not 7203 provide any "EXPORT" or "LOW" strength ciphers. 7204 7205 *Viktor Dukhovni* 7206 7207* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 7208 is by default disabled at build-time. Builds that are not configured with 7209 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 7210 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 7211 will need to explicitly call either of: 7212 7213 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 7214 or 7215 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 7216 7217 as appropriate. Even if either of those is used, or the application 7218 explicitly uses the version-specific SSLv2_method() or its client and 7219 server variants, SSLv2 ciphers vulnerable to exhaustive search key 7220 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 7221 ciphers, and SSLv2 56-bit DES are no longer available. 7222 ([CVE-2016-0800]) 7223 7224 *Viktor Dukhovni* 7225 7226 * Fix a double-free in DSA code 7227 7228 A double free bug was discovered when OpenSSL parses malformed DSA private 7229 keys and could lead to a DoS attack or memory corruption for applications 7230 that receive DSA private keys from untrusted sources. This scenario is 7231 considered rare. 7232 7233 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 7234 libFuzzer. 7235 ([CVE-2016-0705]) 7236 7237 *Stephen Henson* 7238 7239 * Disable SRP fake user seed to address a server memory leak. 7240 7241 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 7242 7243 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 7244 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7245 was changed to ignore the "fake user" SRP seed, even if the seed 7246 is configured. 7247 7248 Users should use SRP_VBASE_get1_by_user instead. Note that in 7249 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7250 also that even though configuring the SRP seed attempts to hide 7251 invalid usernames by continuing the handshake with fake 7252 credentials, this behaviour is not constant time and no strong 7253 guarantees are made that the handshake is indistinguishable from 7254 that of a valid user. 7255 ([CVE-2016-0798]) 7256 7257 *Emilia Käsper* 7258 7259 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7260 7261 In the BN_hex2bn function the number of hex digits is calculated using an 7262 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7263 large values of `i` this can result in `bn_expand` not allocating any 7264 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7265 field as NULL leading to a subsequent NULL ptr deref. For very large values 7266 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7267 In this case memory is allocated to the internal BIGNUM data field, but it 7268 is insufficiently sized leading to heap corruption. A similar issue exists 7269 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7270 is ever called by user applications with very large untrusted hex/dec data. 7271 This is anticipated to be a rare occurrence. 7272 7273 All OpenSSL internal usage of these functions use data that is not expected 7274 to be untrusted, e.g. config file data or application command line 7275 arguments. If user developed applications generate config file data based 7276 on untrusted data then it is possible that this could also lead to security 7277 consequences. This is also anticipated to be rare. 7278 7279 This issue was reported to OpenSSL by Guido Vranken. 7280 ([CVE-2016-0797]) 7281 7282 *Matt Caswell* 7283 7284 * Fix memory issues in `BIO_*printf` functions 7285 7286 The internal `fmtstr` function used in processing a "%s" format string in 7287 the `BIO_*printf` functions could overflow while calculating the length of a 7288 string and cause an OOB read when printing very long strings. 7289 7290 Additionally the internal `doapr_outch` function can attempt to write to an 7291 OOB memory location (at an offset from the NULL pointer) in the event of a 7292 memory allocation failure. In 1.0.2 and below this could be caused where 7293 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7294 could be in processing a very long "%s" format string. Memory leaks can 7295 also occur. 7296 7297 The first issue may mask the second issue dependent on compiler behaviour. 7298 These problems could enable attacks where large amounts of untrusted data 7299 is passed to the `BIO_*printf` functions. If applications use these functions 7300 in this way then they could be vulnerable. OpenSSL itself uses these 7301 functions when printing out human-readable dumps of ASN.1 data. Therefore 7302 applications that print this data could be vulnerable if the data is from 7303 untrusted sources. OpenSSL command line applications could also be 7304 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7305 as command line arguments. 7306 7307 Libssl is not considered directly vulnerable. Additionally certificates etc 7308 received via remote connections via libssl are also unlikely to be able to 7309 trigger these issues because of message size limits enforced within libssl. 7310 7311 This issue was reported to OpenSSL Guido Vranken. 7312 ([CVE-2016-0799]) 7313 7314 *Matt Caswell* 7315 7316 * Side channel attack on modular exponentiation 7317 7318 A side-channel attack was found which makes use of cache-bank conflicts on 7319 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7320 of RSA keys. The ability to exploit this issue is limited as it relies on 7321 an attacker who has control of code in a thread running on the same 7322 hyper-threaded core as the victim thread which is performing decryptions. 7323 7324 This issue was reported to OpenSSL by Yuval Yarom, The University of 7325 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7326 Nadia Heninger, University of Pennsylvania with more information at 7327 <http://cachebleed.info>. 7328 ([CVE-2016-0702]) 7329 7330 *Andy Polyakov* 7331 7332 * Change the req command to generate a 2048-bit RSA/DSA key by default, 7333 if no keysize is specified with default_bits. This fixes an 7334 omission in an earlier change that changed all RSA/DSA key generation 7335 commands to use 2048 bits by default. 7336 7337 *Emilia Käsper* 7338 7339### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 7340 7341 * Protection for DH small subgroup attacks 7342 7343 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 7344 switched on by default and cannot be disabled. This could have some 7345 performance impact. 7346 7347 *Matt Caswell* 7348 7349 * SSLv2 doesn't block disabled ciphers 7350 7351 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7352 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7353 been disabled, provided that the SSLv2 protocol was not also disabled via 7354 SSL_OP_NO_SSLv2. 7355 7356 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7357 and Sebastian Schinzel. 7358 ([CVE-2015-3197]) 7359 7360 *Viktor Dukhovni* 7361 7362 * Reject DH handshakes with parameters shorter than 1024 bits. 7363 7364 *Kurt Roeckx* 7365 7366### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 7367 7368 * Certificate verify crash with missing PSS parameter 7369 7370 The signature verification routines will crash with a NULL pointer 7371 dereference if presented with an ASN.1 signature using the RSA PSS 7372 algorithm and absent mask generation function parameter. Since these 7373 routines are used to verify certificate signature algorithms this can be 7374 used to crash any certificate verification operation and exploited in a 7375 DoS attack. Any application which performs certificate verification is 7376 vulnerable including OpenSSL clients and servers which enable client 7377 authentication. 7378 7379 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7380 ([CVE-2015-3194]) 7381 7382 *Stephen Henson* 7383 7384 * X509_ATTRIBUTE memory leak 7385 7386 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7387 memory. This structure is used by the PKCS#7 and CMS routines so any 7388 application which reads PKCS#7 or CMS data from untrusted sources is 7389 affected. SSL/TLS is not affected. 7390 7391 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7392 libFuzzer. 7393 ([CVE-2015-3195]) 7394 7395 *Stephen Henson* 7396 7397 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7398 This changes the decoding behaviour for some invalid messages, 7399 though the change is mostly in the more lenient direction, and 7400 legacy behaviour is preserved as much as possible. 7401 7402 *Emilia Käsper* 7403 7404 * In DSA_generate_parameters_ex, if the provided seed is too short, 7405 use a random seed, as already documented. 7406 7407 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7408 7409### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7410 7411 * Alternate chains certificate forgery 7412 7413 During certificate verfification, OpenSSL will attempt to find an 7414 alternative certificate chain if the first attempt to build such a chain 7415 fails. An error in the implementation of this logic can mean that an 7416 attacker could cause certain checks on untrusted certificates to be 7417 bypassed, such as the CA flag, enabling them to use a valid leaf 7418 certificate to act as a CA and "issue" an invalid certificate. 7419 7420 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7421 (Google/BoringSSL). 7422 ([CVE-2015-1793]) 7423 7424 *Matt Caswell* 7425 7426 * Race condition handling PSK identify hint 7427 7428 If PSK identity hints are received by a multi-threaded client then 7429 the values are wrongly updated in the parent SSL_CTX structure. This can 7430 result in a race condition potentially leading to a double free of the 7431 identify hint data. 7432 ([CVE-2015-3196]) 7433 7434 *Stephen Henson* 7435 7436### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7437 7438 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7439 incompatibility in the handling of HMAC. The previous ABI has now been 7440 restored. 7441 7442### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7443 7444 * Malformed ECParameters causes infinite loop 7445 7446 When processing an ECParameters structure OpenSSL enters an infinite loop 7447 if the curve specified is over a specially malformed binary polynomial 7448 field. 7449 7450 This can be used to perform denial of service against any 7451 system which processes public keys, certificate requests or 7452 certificates. This includes TLS clients and TLS servers with 7453 client authentication enabled. 7454 7455 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7456 ([CVE-2015-1788]) 7457 7458 *Andy Polyakov* 7459 7460 * Exploitable out-of-bounds read in X509_cmp_time 7461 7462 X509_cmp_time does not properly check the length of the ASN1_TIME 7463 string and can read a few bytes out of bounds. In addition, 7464 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7465 time string. 7466 7467 An attacker can use this to craft malformed certificates and CRLs of 7468 various sizes and potentially cause a segmentation fault, resulting in 7469 a DoS on applications that verify certificates or CRLs. TLS clients 7470 that verify CRLs are affected. TLS clients and servers with client 7471 authentication enabled may be affected if they use custom verification 7472 callbacks. 7473 7474 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7475 independently by Hanno Böck. 7476 ([CVE-2015-1789]) 7477 7478 *Emilia Käsper* 7479 7480 * PKCS7 crash with missing EnvelopedContent 7481 7482 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7483 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7484 with missing content and trigger a NULL pointer dereference on parsing. 7485 7486 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7487 structures from untrusted sources are affected. OpenSSL clients and 7488 servers are not affected. 7489 7490 This issue was reported to OpenSSL by Michal Zalewski (Google). 7491 ([CVE-2015-1790]) 7492 7493 *Emilia Käsper* 7494 7495 * CMS verify infinite loop with unknown hash function 7496 7497 When verifying a signedData message the CMS code can enter an infinite loop 7498 if presented with an unknown hash function OID. This can be used to perform 7499 denial of service against any system which verifies signedData messages using 7500 the CMS code. 7501 This issue was reported to OpenSSL by Johannes Bauer. 7502 ([CVE-2015-1792]) 7503 7504 *Stephen Henson* 7505 7506 * Race condition handling NewSessionTicket 7507 7508 If a NewSessionTicket is received by a multi-threaded client when attempting to 7509 reuse a previous ticket then a race condition can occur potentially leading to 7510 a double free of the ticket data. 7511 ([CVE-2015-1791]) 7512 7513 *Matt Caswell* 7514 7515 * Reject DH handshakes with parameters shorter than 768 bits. 7516 7517 *Kurt Roeckx and Emilia Kasper* 7518 7519 * dhparam: generate 2048-bit parameters by default. 7520 7521 *Kurt Roeckx and Emilia Kasper* 7522 7523### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7524 7525 * Segmentation fault in ASN1_TYPE_cmp fix 7526 7527 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7528 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7529 certificate signature algorithm consistency this can be used to crash any 7530 certificate verification operation and exploited in a DoS attack. Any 7531 application which performs certificate verification is vulnerable including 7532 OpenSSL clients and servers which enable client authentication. 7533 ([CVE-2015-0286]) 7534 7535 *Stephen Henson* 7536 7537 * ASN.1 structure reuse memory corruption fix 7538 7539 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7540 memory corruption via an invalid write. Such reuse is and has been 7541 strongly discouraged and is believed to be rare. 7542 7543 Applications that parse structures containing CHOICE or ANY DEFINED BY 7544 components may be affected. Certificate parsing (d2i_X509 and related 7545 functions) are however not affected. OpenSSL clients and servers are 7546 not affected. 7547 ([CVE-2015-0287]) 7548 7549 *Stephen Henson* 7550 7551 * PKCS7 NULL pointer dereferences fix 7552 7553 The PKCS#7 parsing code does not handle missing outer ContentInfo 7554 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7555 missing content and trigger a NULL pointer dereference on parsing. 7556 7557 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7558 otherwise parse PKCS#7 structures from untrusted sources are 7559 affected. OpenSSL clients and servers are not affected. 7560 7561 This issue was reported to OpenSSL by Michal Zalewski (Google). 7562 ([CVE-2015-0289]) 7563 7564 *Emilia Käsper* 7565 7566 * DoS via reachable assert in SSLv2 servers fix 7567 7568 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7569 servers that both support SSLv2 and enable export cipher suites by sending 7570 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7571 7572 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7573 (OpenSSL development team). 7574 ([CVE-2015-0293]) 7575 7576 *Emilia Käsper* 7577 7578 * Use After Free following d2i_ECPrivatekey error fix 7579 7580 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7581 could cause a use after free condition. This, in turn, could cause a double 7582 free in several private key parsing functions (such as d2i_PrivateKey 7583 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7584 for applications that receive EC private keys from untrusted 7585 sources. This scenario is considered rare. 7586 7587 This issue was discovered by the BoringSSL project and fixed in their 7588 commit 517073cd4b. 7589 ([CVE-2015-0209]) 7590 7591 *Matt Caswell* 7592 7593 * X509_to_X509_REQ NULL pointer deref fix 7594 7595 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7596 the certificate key is invalid. This function is rarely used in practice. 7597 7598 This issue was discovered by Brian Carpenter. 7599 ([CVE-2015-0288]) 7600 7601 *Stephen Henson* 7602 7603 * Removed the export ciphers from the DEFAULT ciphers 7604 7605 *Kurt Roeckx* 7606 7607### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7608 7609 * Build fixes for the Windows and OpenVMS platforms 7610 7611 *Matt Caswell and Richard Levitte* 7612 7613### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7614 7615 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7616 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7617 dereference. This could lead to a Denial Of Service attack. Thanks to 7618 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7619 ([CVE-2014-3571]) 7620 7621 *Steve Henson* 7622 7623 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7624 dtls1_buffer_record function under certain conditions. In particular this 7625 could occur if an attacker sent repeated DTLS records with the same 7626 sequence number but for the next epoch. The memory leak could be exploited 7627 by an attacker in a Denial of Service attack through memory exhaustion. 7628 Thanks to Chris Mueller for reporting this issue. 7629 ([CVE-2015-0206]) 7630 7631 *Matt Caswell* 7632 7633 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7634 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7635 method would be set to NULL which could later result in a NULL pointer 7636 dereference. Thanks to Frank Schmirler for reporting this issue. 7637 ([CVE-2014-3569]) 7638 7639 *Kurt Roeckx* 7640 7641 * Abort handshake if server key exchange message is omitted for ephemeral 7642 ECDH ciphersuites. 7643 7644 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7645 reporting this issue. 7646 ([CVE-2014-3572]) 7647 7648 *Steve Henson* 7649 7650 * Remove non-export ephemeral RSA code on client and server. This code 7651 violated the TLS standard by allowing the use of temporary RSA keys in 7652 non-export ciphersuites and could be used by a server to effectively 7653 downgrade the RSA key length used to a value smaller than the server 7654 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7655 INRIA or reporting this issue. 7656 ([CVE-2015-0204]) 7657 7658 *Steve Henson* 7659 7660 * Fixed issue where DH client certificates are accepted without verification. 7661 An OpenSSL server will accept a DH certificate for client authentication 7662 without the certificate verify message. This effectively allows a client to 7663 authenticate without the use of a private key. This only affects servers 7664 which trust a client certificate authority which issues certificates 7665 containing DH keys: these are extremely rare and hardly ever encountered. 7666 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7667 this issue. 7668 ([CVE-2015-0205]) 7669 7670 *Steve Henson* 7671 7672 * Ensure that the session ID context of an SSL is updated when its 7673 SSL_CTX is updated via SSL_set_SSL_CTX. 7674 7675 The session ID context is typically set from the parent SSL_CTX, 7676 and can vary with the CTX. 7677 7678 *Adam Langley* 7679 7680 * Fix various certificate fingerprint issues. 7681 7682 By using non-DER or invalid encodings outside the signed portion of a 7683 certificate the fingerprint can be changed without breaking the signature. 7684 Although no details of the signed portion of the certificate can be changed 7685 this can cause problems with some applications: e.g. those using the 7686 certificate fingerprint for blacklists. 7687 7688 1. Reject signatures with non zero unused bits. 7689 7690 If the BIT STRING containing the signature has non zero unused bits reject 7691 the signature. All current signature algorithms require zero unused bits. 7692 7693 2. Check certificate algorithm consistency. 7694 7695 Check the AlgorithmIdentifier inside TBS matches the one in the 7696 certificate signature. NB: this will result in signature failure 7697 errors for some broken certificates. 7698 7699 Thanks to Konrad Kraszewski from Google for reporting this issue. 7700 7701 3. Check DSA/ECDSA signatures use DER. 7702 7703 Re-encode DSA/ECDSA signatures and compare with the original received 7704 signature. Return an error if there is a mismatch. 7705 7706 This will reject various cases including garbage after signature 7707 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7708 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7709 (negative or with leading zeroes). 7710 7711 Further analysis was conducted and fixes were developed by Stephen Henson 7712 of the OpenSSL core team. 7713 7714 ([CVE-2014-8275]) 7715 7716 *Steve Henson* 7717 7718 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7719 results on some platforms, including x86_64. This bug occurs at random 7720 with a very low probability, and is not known to be exploitable in any 7721 way, though its exact impact is difficult to determine. Thanks to Pieter 7722 Wuille (Blockstream) who reported this issue and also suggested an initial 7723 fix. Further analysis was conducted by the OpenSSL development team and 7724 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7725 the OpenSSL core team. 7726 ([CVE-2014-3570]) 7727 7728 *Andy Polyakov* 7729 7730 * Do not resume sessions on the server if the negotiated protocol 7731 version does not match the session's version. Resuming with a different 7732 version, while not strictly forbidden by the RFC, is of questionable 7733 sanity and breaks all known clients. 7734 7735 *David Benjamin, Emilia Käsper* 7736 7737 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7738 early CCS messages during renegotiation. (Note that because 7739 renegotiation is encrypted, this early CCS was not exploitable.) 7740 7741 *Emilia Käsper* 7742 7743 * Tighten client-side session ticket handling during renegotiation: 7744 ensure that the client only accepts a session ticket if the server sends 7745 the extension anew in the ServerHello. Previously, a TLS client would 7746 reuse the old extension state and thus accept a session ticket if one was 7747 announced in the initial ServerHello. 7748 7749 Similarly, ensure that the client requires a session ticket if one 7750 was advertised in the ServerHello. Previously, a TLS client would 7751 ignore a missing NewSessionTicket message. 7752 7753 *Emilia Käsper* 7754 7755### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7756 7757 * SRTP Memory Leak. 7758 7759 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7760 sends a carefully crafted handshake message, to cause OpenSSL to fail 7761 to free up to 64k of memory causing a memory leak. This could be 7762 exploited in a Denial Of Service attack. This issue affects OpenSSL 7763 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7764 whether SRTP is used or configured. Implementations of OpenSSL that 7765 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7766 7767 The fix was developed by the OpenSSL team. 7768 ([CVE-2014-3513]) 7769 7770 *OpenSSL team* 7771 7772 * Session Ticket Memory Leak. 7773 7774 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7775 integrity of that ticket is first verified. In the event of a session 7776 ticket integrity check failing, OpenSSL will fail to free memory 7777 causing a memory leak. By sending a large number of invalid session 7778 tickets an attacker could exploit this issue in a Denial Of Service 7779 attack. 7780 ([CVE-2014-3567]) 7781 7782 *Steve Henson* 7783 7784 * Build option no-ssl3 is incomplete. 7785 7786 When OpenSSL is configured with "no-ssl3" as a build option, servers 7787 could accept and complete a SSL 3.0 handshake, and clients could be 7788 configured to send them. 7789 ([CVE-2014-3568]) 7790 7791 *Akamai and the OpenSSL team* 7792 7793 * Add support for TLS_FALLBACK_SCSV. 7794 Client applications doing fallback retries should call 7795 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7796 ([CVE-2014-3566]) 7797 7798 *Adam Langley, Bodo Moeller* 7799 7800 * Add additional DigestInfo checks. 7801 7802 Re-encode DigestInto in DER and check against the original when 7803 verifying RSA signature: this will reject any improperly encoded 7804 DigestInfo structures. 7805 7806 Note: this is a precautionary measure and no attacks are currently known. 7807 7808 *Steve Henson* 7809 7810### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7811 7812 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7813 SRP code can be overrun an internal buffer. Add sanity check that 7814 g, A, B < N to SRP code. 7815 7816 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7817 Group for discovering this issue. 7818 ([CVE-2014-3512]) 7819 7820 *Steve Henson* 7821 7822 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7823 TLS 1.0 instead of higher protocol versions when the ClientHello message 7824 is badly fragmented. This allows a man-in-the-middle attacker to force a 7825 downgrade to TLS 1.0 even if both the server and the client support a 7826 higher protocol version, by modifying the client's TLS records. 7827 7828 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7829 researching this issue. 7830 ([CVE-2014-3511]) 7831 7832 *David Benjamin* 7833 7834 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7835 to a denial of service attack. A malicious server can crash the client 7836 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7837 ciphersuite and sending carefully crafted handshake messages. 7838 7839 Thanks to Felix Gröbert (Google) for discovering and researching this 7840 issue. 7841 ([CVE-2014-3510]) 7842 7843 *Emilia Käsper* 7844 7845 * By sending carefully crafted DTLS packets an attacker could cause openssl 7846 to leak memory. This can be exploited through a Denial of Service attack. 7847 Thanks to Adam Langley for discovering and researching this issue. 7848 ([CVE-2014-3507]) 7849 7850 *Adam Langley* 7851 7852 * An attacker can force openssl to consume large amounts of memory whilst 7853 processing DTLS handshake messages. This can be exploited through a 7854 Denial of Service attack. 7855 Thanks to Adam Langley for discovering and researching this issue. 7856 ([CVE-2014-3506]) 7857 7858 *Adam Langley* 7859 7860 * An attacker can force an error condition which causes openssl to crash 7861 whilst processing DTLS packets due to memory being freed twice. This 7862 can be exploited through a Denial of Service attack. 7863 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7864 this issue. 7865 ([CVE-2014-3505]) 7866 7867 *Adam Langley* 7868 7869 * If a multithreaded client connects to a malicious server using a resumed 7870 session and the server sends an ec point format extension it could write 7871 up to 255 bytes to freed memory. 7872 7873 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7874 issue. 7875 ([CVE-2014-3509]) 7876 7877 *Gabor Tyukasz* 7878 7879 * A malicious server can crash an OpenSSL client with a null pointer 7880 dereference (read) by specifying an SRP ciphersuite even though it was not 7881 properly negotiated with the client. This can be exploited through a 7882 Denial of Service attack. 7883 7884 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7885 discovering and researching this issue. 7886 ([CVE-2014-5139]) 7887 7888 *Steve Henson* 7889 7890 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7891 X509_name_oneline, X509_name_print_ex et al. to leak some information 7892 from the stack. Applications may be affected if they echo pretty printing 7893 output to the attacker. 7894 7895 Thanks to Ivan Fratric (Google) for discovering this issue. 7896 ([CVE-2014-3508]) 7897 7898 *Emilia Käsper, and Steve Henson* 7899 7900 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7901 for corner cases. (Certain input points at infinity could lead to 7902 bogus results, with non-infinity inputs mapped to infinity too.) 7903 7904 *Bodo Moeller* 7905 7906### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7907 7908 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7909 handshake can force the use of weak keying material in OpenSSL 7910 SSL/TLS clients and servers. 7911 7912 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7913 researching this issue. ([CVE-2014-0224]) 7914 7915 *KIKUCHI Masashi, Steve Henson* 7916 7917 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7918 OpenSSL DTLS client the code can be made to recurse eventually crashing 7919 in a DoS attack. 7920 7921 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7922 ([CVE-2014-0221]) 7923 7924 *Imre Rad, Steve Henson* 7925 7926 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7927 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7928 client or server. This is potentially exploitable to run arbitrary 7929 code on a vulnerable client or server. 7930 7931 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7932 7933 *Jüri Aedla, Steve Henson* 7934 7935 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7936 are subject to a denial of service attack. 7937 7938 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7939 this issue. ([CVE-2014-3470]) 7940 7941 *Felix Gröbert, Ivan Fratric, Steve Henson* 7942 7943 * Harmonize version and its documentation. -f flag is used to display 7944 compilation flags. 7945 7946 *mancha <mancha1@zoho.com>* 7947 7948 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7949 in i2d_ECPrivateKey. 7950 7951 *mancha <mancha1@zoho.com>* 7952 7953 * Fix some double frees. These are not thought to be exploitable. 7954 7955 *mancha <mancha1@zoho.com>* 7956 7957### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7958 7959 * A missing bounds check in the handling of the TLS heartbeat extension 7960 can be used to reveal up to 64k of memory to a connected client or 7961 server. 7962 7963 Thanks for Neel Mehta of Google Security for discovering this bug and to 7964 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7965 preparing the fix ([CVE-2014-0160]) 7966 7967 *Adam Langley, Bodo Moeller* 7968 7969 * Fix for the attack described in the paper "Recovering OpenSSL 7970 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7971 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7972 <http://eprint.iacr.org/2014/140> 7973 7974 Thanks to Yuval Yarom and Naomi Benger for discovering this 7975 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7976 7977 *Yuval Yarom and Naomi Benger* 7978 7979 * TLS pad extension: draft-agl-tls-padding-03 7980 7981 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7982 TLS client Hello record length value would otherwise be > 255 and 7983 less that 512 pad with a dummy extension containing zeroes so it 7984 is at least 512 bytes long. 7985 7986 *Adam Langley, Steve Henson* 7987 7988### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7989 7990 * Fix for TLS record tampering bug. A carefully crafted invalid 7991 handshake could crash OpenSSL with a NULL pointer exception. 7992 Thanks to Anton Johansson for reporting this issues. 7993 ([CVE-2013-4353]) 7994 7995 * Keep original DTLS digest and encryption contexts in retransmission 7996 structures so we can use the previous session parameters if they need 7997 to be resent. ([CVE-2013-6450]) 7998 7999 *Steve Henson* 8000 8001 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8002 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8003 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8004 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8005 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8006 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8007 8008 *Rob Stradling, Adam Langley* 8009 8010### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 8011 8012 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 8013 supporting platforms or when small records were transferred. 8014 8015 *Andy Polyakov, Steve Henson* 8016 8017### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 8018 8019 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8020 8021 This addresses the flaw in CBC record processing discovered by 8022 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8023 at: <http://www.isg.rhul.ac.uk/tls/> 8024 8025 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8026 Security Group at Royal Holloway, University of London 8027 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8028 Emilia Käsper for the initial patch. 8029 ([CVE-2013-0169]) 8030 8031 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8032 8033 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 8034 ciphersuites which can be exploited in a denial of service attack. 8035 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 8036 and detecting this bug and to Wolfgang Ettlinger 8037 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 8038 ([CVE-2012-2686]) 8039 8040 *Adam Langley* 8041 8042 * Return an error when checking OCSP signatures when key is NULL. 8043 This fixes a DoS attack. ([CVE-2013-0166]) 8044 8045 *Steve Henson* 8046 8047 * Make openssl verify return errors. 8048 8049 *Chris Palmer <palmer@google.com> and Ben Laurie* 8050 8051 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8052 the right response is stapled. Also change SSL_get_certificate() 8053 so it returns the certificate actually sent. 8054 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8055 8056 *Rob Stradling <rob.stradling@comodo.com>* 8057 8058 * Fix possible deadlock when decoding public keys. 8059 8060 *Steve Henson* 8061 8062 * Don't use TLS 1.0 record version number in initial client hello 8063 if renegotiating. 8064 8065 *Steve Henson* 8066 8067### Changes between 1.0.1b and 1.0.1c [10 May 2012] 8068 8069 * Sanity check record length before skipping explicit IV in TLS 8070 1.2, 1.1 and DTLS to fix DoS attack. 8071 8072 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8073 fuzzing as a service testing platform. 8074 ([CVE-2012-2333]) 8075 8076 *Steve Henson* 8077 8078 * Initialise tkeylen properly when encrypting CMS messages. 8079 Thanks to Solar Designer of Openwall for reporting this issue. 8080 8081 *Steve Henson* 8082 8083 * In FIPS mode don't try to use composite ciphers as they are not 8084 approved. 8085 8086 *Steve Henson* 8087 8088### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 8089 8090 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 8091 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 8092 mean any application compiled against OpenSSL 1.0.0 headers setting 8093 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 8094 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 8095 0x10000000L Any application which was previously compiled against 8096 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 8097 will need to be recompiled as a result. Letting be results in 8098 inability to disable specifically TLS 1.1 and in client context, 8099 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 8100 8101 *Steve Henson* 8102 8103 * In order to ensure interoperability SSL_OP_NO_protocolX does not 8104 disable just protocol X, but all protocols above X *if* there are 8105 protocols *below* X still enabled. In more practical terms it means 8106 that if application wants to disable TLS1.0 in favor of TLS1.1 and 8107 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 8108 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 8109 client side. 8110 8111 *Andy Polyakov* 8112 8113### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 8114 8115 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8116 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8117 in CRYPTO_realloc_clean. 8118 8119 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8120 issue and to Adam Langley <agl@chromium.org> for fixing it. 8121 ([CVE-2012-2110]) 8122 8123 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8124 8125 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 8126 8127 *Adam Langley* 8128 8129 * Workarounds for some broken servers that "hang" if a client hello 8130 record length exceeds 255 bytes. 8131 8132 1. Do not use record version number > TLS 1.0 in initial client 8133 hello: some (but not all) hanging servers will now work. 8134 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 8135 the number of ciphers sent in the client hello. This should be 8136 set to an even number, such as 50, for example by passing: 8137 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 8138 Most broken servers should now work. 8139 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 8140 TLS 1.2 client support entirely. 8141 8142 *Steve Henson* 8143 8144 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 8145 8146 *Andy Polyakov* 8147 8148### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 8149 8150 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 8151 STRING form instead of a DigestInfo. 8152 8153 *Steve Henson* 8154 8155 * The format used for MDC2 RSA signatures is inconsistent between EVP 8156 and the RSA_sign/RSA_verify functions. This was made more apparent when 8157 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 8158 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 8159 the correct format in RSA_verify so both forms transparently work. 8160 8161 *Steve Henson* 8162 8163 * Some servers which support TLS 1.0 can choke if we initially indicate 8164 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 8165 encrypted premaster secret. As a workaround use the maximum permitted 8166 client version in client hello, this should keep such servers happy 8167 and still work with previous versions of OpenSSL. 8168 8169 *Steve Henson* 8170 8171 * Add support for TLS/DTLS heartbeats. 8172 8173 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8174 8175 * Add support for SCTP. 8176 8177 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8178 8179 * Improved PRNG seeding for VOS. 8180 8181 *Paul Green <Paul.Green@stratus.com>* 8182 8183 * Extensive assembler packs updates, most notably: 8184 8185 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 8186 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 8187 - x86_64: bit-sliced AES implementation; 8188 - ARM: NEON support, contemporary platforms optimizations; 8189 - s390x: z196 support; 8190 - `*`: GHASH and GF(2^m) multiplication implementations; 8191 8192 *Andy Polyakov* 8193 8194 * Make TLS-SRP code conformant with RFC 5054 API cleanup 8195 (removal of unnecessary code) 8196 8197 *Peter Sylvester <peter.sylvester@edelweb.fr>* 8198 8199 * Add TLS key material exporter from RFC 5705. 8200 8201 *Eric Rescorla* 8202 8203 * Add DTLS-SRTP negotiation from RFC 5764. 8204 8205 *Eric Rescorla* 8206 8207 * Add Next Protocol Negotiation, 8208 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 8209 disabled with a no-npn flag to config or Configure. Code donated 8210 by Google. 8211 8212 *Adam Langley <agl@google.com> and Ben Laurie* 8213 8214 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 8215 NIST-P256, NIST-P521, with constant-time single point multiplication on 8216 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 8217 required to use this (present in gcc 4.4 and later, for 64-bit builds). 8218 Code made available under Apache License version 2.0. 8219 8220 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 8221 line to include this in your build of OpenSSL, and run "make depend" (or 8222 "make update"). This enables the following EC_METHODs: 8223 8224 EC_GFp_nistp224_method() 8225 EC_GFp_nistp256_method() 8226 EC_GFp_nistp521_method() 8227 8228 EC_GROUP_new_by_curve_name() will automatically use these (while 8229 EC_GROUP_new_curve_GFp() currently prefers the more flexible 8230 implementations). 8231 8232 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 8233 8234 * Use type ossl_ssize_t instead of ssize_t which isn't available on 8235 all platforms. Move ssize_t definition from e_os.h to the public 8236 header file e_os2.h as it now appears in public header file cms.h 8237 8238 *Steve Henson* 8239 8240 * New -sigopt option to the ca, req and x509 utilities. Additional 8241 signature parameters can be passed using this option and in 8242 particular PSS. 8243 8244 *Steve Henson* 8245 8246 * Add RSA PSS signing function. This will generate and set the 8247 appropriate AlgorithmIdentifiers for PSS based on those in the 8248 corresponding EVP_MD_CTX structure. No application support yet. 8249 8250 *Steve Henson* 8251 8252 * Support for companion algorithm specific ASN1 signing routines. 8253 New function ASN1_item_sign_ctx() signs a pre-initialised 8254 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 8255 the appropriate parameters. 8256 8257 *Steve Henson* 8258 8259 * Add new algorithm specific ASN1 verification initialisation function 8260 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 8261 handling will be the same no matter what EVP_PKEY_METHOD is used. 8262 Add a PSS handler to support verification of PSS signatures: checked 8263 against a number of sample certificates. 8264 8265 *Steve Henson* 8266 8267 * Add signature printing for PSS. Add PSS OIDs. 8268 8269 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 8270 8271 * Add algorithm specific signature printing. An individual ASN1 method 8272 can now print out signatures instead of the standard hex dump. 8273 8274 More complex signatures (e.g. PSS) can print out more meaningful 8275 information. Include DSA version that prints out the signature 8276 parameters r, s. 8277 8278 *Steve Henson* 8279 8280 * Password based recipient info support for CMS library: implementing 8281 RFC3211. 8282 8283 *Steve Henson* 8284 8285 * Split password based encryption into PBES2 and PBKDF2 functions. This 8286 neatly separates the code into cipher and PBE sections and is required 8287 for some algorithms that split PBES2 into separate pieces (such as 8288 password based CMS). 8289 8290 *Steve Henson* 8291 8292 * Session-handling fixes: 8293 - Fix handling of connections that are resuming with a session ID, 8294 but also support Session Tickets. 8295 - Fix a bug that suppressed issuing of a new ticket if the client 8296 presented a ticket with an expired session. 8297 - Try to set the ticket lifetime hint to something reasonable. 8298 - Make tickets shorter by excluding irrelevant information. 8299 - On the client side, don't ignore renewed tickets. 8300 8301 *Adam Langley, Bodo Moeller (Google)* 8302 8303 * Fix PSK session representation. 8304 8305 *Bodo Moeller* 8306 8307 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 8308 8309 This work was sponsored by Intel. 8310 8311 *Andy Polyakov* 8312 8313 * Add GCM support to TLS library. Some custom code is needed to split 8314 the IV between the fixed (from PRF) and explicit (from TLS record) 8315 portions. This adds all GCM ciphersuites supported by RFC5288 and 8316 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 8317 add a special AESGCM string for GCM only. 8318 8319 *Steve Henson* 8320 8321 * Expand range of ctrls for AES GCM. Permit setting invocation 8322 field on decrypt and retrieval of invocation field only on encrypt. 8323 8324 *Steve Henson* 8325 8326 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 8327 As required by RFC5289 these ciphersuites cannot be used if for 8328 versions of TLS earlier than 1.2. 8329 8330 *Steve Henson* 8331 8332 * For FIPS capable OpenSSL interpret a NULL default public key method 8333 as unset and return the appropriate default but do *not* set the default. 8334 This means we can return the appropriate method in applications that 8335 switch between FIPS and non-FIPS modes. 8336 8337 *Steve Henson* 8338 8339 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 8340 ENGINE is used then we cannot handle that in the FIPS module so we 8341 keep original code iff non-FIPS operations are allowed. 8342 8343 *Steve Henson* 8344 8345 * Add -attime option to openssl utilities. 8346 8347 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 8348 8349 * Redirect DSA and DH operations to FIPS module in FIPS mode. 8350 8351 *Steve Henson* 8352 8353 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 8354 FIPS EC methods unconditionally for now. 8355 8356 *Steve Henson* 8357 8358 * New build option no-ec2m to disable characteristic 2 code. 8359 8360 *Steve Henson* 8361 8362 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 8363 all cases can be covered as some introduce binary incompatibilities. 8364 8365 *Steve Henson* 8366 8367 * Redirect RSA operations to FIPS module including keygen, 8368 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 8369 8370 *Steve Henson* 8371 8372 * Add similar low-level API blocking to ciphers. 8373 8374 *Steve Henson* 8375 8376 * low-level digest APIs are not approved in FIPS mode: any attempt 8377 to use these will cause a fatal error. Applications that *really* want 8378 to use them can use the `private_*` version instead. 8379 8380 *Steve Henson* 8381 8382 * Redirect cipher operations to FIPS module for FIPS builds. 8383 8384 *Steve Henson* 8385 8386 * Redirect digest operations to FIPS module for FIPS builds. 8387 8388 *Steve Henson* 8389 8390 * Update build system to add "fips" flag which will link in fipscanister.o 8391 for static and shared library builds embedding a signature if needed. 8392 8393 *Steve Henson* 8394 8395 * Output TLS supported curves in preference order instead of numerical 8396 order. This is currently hardcoded for the highest order curves first. 8397 This should be configurable so applications can judge speed vs strength. 8398 8399 *Steve Henson* 8400 8401 * Add TLS v1.2 server support for client authentication. 8402 8403 *Steve Henson* 8404 8405 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8406 and enable MD5. 8407 8408 *Steve Henson* 8409 8410 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8411 FIPS modules versions. 8412 8413 *Steve Henson* 8414 8415 * Add TLS v1.2 client side support for client authentication. Keep cache 8416 of handshake records longer as we don't know the hash algorithm to use 8417 until after the certificate request message is received. 8418 8419 *Steve Henson* 8420 8421 * Initial TLS v1.2 client support. Add a default signature algorithms 8422 extension including all the algorithms we support. Parse new signature 8423 format in client key exchange. Relax some ECC signing restrictions for 8424 TLS v1.2 as indicated in RFC5246. 8425 8426 *Steve Henson* 8427 8428 * Add server support for TLS v1.2 signature algorithms extension. Switch 8429 to new signature format when needed using client digest preference. 8430 All server ciphersuites should now work correctly in TLS v1.2. No client 8431 support yet and no support for client certificates. 8432 8433 *Steve Henson* 8434 8435 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8436 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8437 ciphersuites. At present only RSA key exchange ciphersuites work with 8438 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8439 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8440 and version checking. 8441 8442 *Steve Henson* 8443 8444 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8445 with this defined it will not be affected by any changes to ssl internal 8446 structures. Add several utility functions to allow openssl application 8447 to work with OPENSSL_NO_SSL_INTERN defined. 8448 8449 *Steve Henson* 8450 8451 * A long standing patch to add support for SRP from EdelWeb (Peter 8452 Sylvester and Christophe Renou) was integrated. 8453 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8454 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8455 Ben Laurie* 8456 8457 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8458 8459 *Steve Henson* 8460 8461 * Permit abbreviated handshakes when renegotiating using the function 8462 SSL_renegotiate_abbreviated(). 8463 8464 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8465 8466 * Add call to ENGINE_register_all_complete() to 8467 ENGINE_load_builtin_engines(), so some implementations get used 8468 automatically instead of needing explicit application support. 8469 8470 *Steve Henson* 8471 8472 * Add support for TLS key exporter as described in RFC5705. 8473 8474 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8475 8476 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8477 a few changes are required: 8478 8479 Add SSL_OP_NO_TLSv1_1 flag. 8480 Add TLSv1_1 methods. 8481 Update version checking logic to handle version 1.1. 8482 Add explicit IV handling (ported from DTLS code). 8483 Add command line options to s_client/s_server. 8484 8485 *Steve Henson* 8486 8487OpenSSL 1.0.0 8488------------- 8489 8490### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8491 8492 * X509_ATTRIBUTE memory leak 8493 8494 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8495 memory. This structure is used by the PKCS#7 and CMS routines so any 8496 application which reads PKCS#7 or CMS data from untrusted sources is 8497 affected. SSL/TLS is not affected. 8498 8499 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8500 libFuzzer. 8501 ([CVE-2015-3195]) 8502 8503 *Stephen Henson* 8504 8505 * Race condition handling PSK identify hint 8506 8507 If PSK identity hints are received by a multi-threaded client then 8508 the values are wrongly updated in the parent SSL_CTX structure. This can 8509 result in a race condition potentially leading to a double free of the 8510 identify hint data. 8511 ([CVE-2015-3196]) 8512 8513 *Stephen Henson* 8514 8515### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8516 8517 * Malformed ECParameters causes infinite loop 8518 8519 When processing an ECParameters structure OpenSSL enters an infinite loop 8520 if the curve specified is over a specially malformed binary polynomial 8521 field. 8522 8523 This can be used to perform denial of service against any 8524 system which processes public keys, certificate requests or 8525 certificates. This includes TLS clients and TLS servers with 8526 client authentication enabled. 8527 8528 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8529 ([CVE-2015-1788]) 8530 8531 *Andy Polyakov* 8532 8533 * Exploitable out-of-bounds read in X509_cmp_time 8534 8535 X509_cmp_time does not properly check the length of the ASN1_TIME 8536 string and can read a few bytes out of bounds. In addition, 8537 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8538 time string. 8539 8540 An attacker can use this to craft malformed certificates and CRLs of 8541 various sizes and potentially cause a segmentation fault, resulting in 8542 a DoS on applications that verify certificates or CRLs. TLS clients 8543 that verify CRLs are affected. TLS clients and servers with client 8544 authentication enabled may be affected if they use custom verification 8545 callbacks. 8546 8547 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8548 independently by Hanno Böck. 8549 ([CVE-2015-1789]) 8550 8551 *Emilia Käsper* 8552 8553 * PKCS7 crash with missing EnvelopedContent 8554 8555 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8556 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8557 with missing content and trigger a NULL pointer dereference on parsing. 8558 8559 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8560 structures from untrusted sources are affected. OpenSSL clients and 8561 servers are not affected. 8562 8563 This issue was reported to OpenSSL by Michal Zalewski (Google). 8564 ([CVE-2015-1790]) 8565 8566 *Emilia Käsper* 8567 8568 * CMS verify infinite loop with unknown hash function 8569 8570 When verifying a signedData message the CMS code can enter an infinite loop 8571 if presented with an unknown hash function OID. This can be used to perform 8572 denial of service against any system which verifies signedData messages using 8573 the CMS code. 8574 This issue was reported to OpenSSL by Johannes Bauer. 8575 ([CVE-2015-1792]) 8576 8577 *Stephen Henson* 8578 8579 * Race condition handling NewSessionTicket 8580 8581 If a NewSessionTicket is received by a multi-threaded client when attempting to 8582 reuse a previous ticket then a race condition can occur potentially leading to 8583 a double free of the ticket data. 8584 ([CVE-2015-1791]) 8585 8586 *Matt Caswell* 8587 8588### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8589 8590 * Segmentation fault in ASN1_TYPE_cmp fix 8591 8592 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8593 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8594 certificate signature algorithm consistency this can be used to crash any 8595 certificate verification operation and exploited in a DoS attack. Any 8596 application which performs certificate verification is vulnerable including 8597 OpenSSL clients and servers which enable client authentication. 8598 ([CVE-2015-0286]) 8599 8600 *Stephen Henson* 8601 8602 * ASN.1 structure reuse memory corruption fix 8603 8604 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8605 memory corruption via an invalid write. Such reuse is and has been 8606 strongly discouraged and is believed to be rare. 8607 8608 Applications that parse structures containing CHOICE or ANY DEFINED BY 8609 components may be affected. Certificate parsing (d2i_X509 and related 8610 functions) are however not affected. OpenSSL clients and servers are 8611 not affected. 8612 ([CVE-2015-0287]) 8613 8614 *Stephen Henson* 8615 8616 * PKCS7 NULL pointer dereferences fix 8617 8618 The PKCS#7 parsing code does not handle missing outer ContentInfo 8619 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8620 missing content and trigger a NULL pointer dereference on parsing. 8621 8622 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8623 otherwise parse PKCS#7 structures from untrusted sources are 8624 affected. OpenSSL clients and servers are not affected. 8625 8626 This issue was reported to OpenSSL by Michal Zalewski (Google). 8627 ([CVE-2015-0289]) 8628 8629 *Emilia Käsper* 8630 8631 * DoS via reachable assert in SSLv2 servers fix 8632 8633 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8634 servers that both support SSLv2 and enable export cipher suites by sending 8635 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8636 8637 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8638 (OpenSSL development team). 8639 ([CVE-2015-0293]) 8640 8641 *Emilia Käsper* 8642 8643 * Use After Free following d2i_ECPrivatekey error fix 8644 8645 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8646 could cause a use after free condition. This, in turn, could cause a double 8647 free in several private key parsing functions (such as d2i_PrivateKey 8648 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8649 for applications that receive EC private keys from untrusted 8650 sources. This scenario is considered rare. 8651 8652 This issue was discovered by the BoringSSL project and fixed in their 8653 commit 517073cd4b. 8654 ([CVE-2015-0209]) 8655 8656 *Matt Caswell* 8657 8658 * X509_to_X509_REQ NULL pointer deref fix 8659 8660 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8661 the certificate key is invalid. This function is rarely used in practice. 8662 8663 This issue was discovered by Brian Carpenter. 8664 ([CVE-2015-0288]) 8665 8666 *Stephen Henson* 8667 8668 * Removed the export ciphers from the DEFAULT ciphers 8669 8670 *Kurt Roeckx* 8671 8672### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8673 8674 * Build fixes for the Windows and OpenVMS platforms 8675 8676 *Matt Caswell and Richard Levitte* 8677 8678### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8679 8680 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8681 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8682 dereference. This could lead to a Denial Of Service attack. Thanks to 8683 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8684 ([CVE-2014-3571]) 8685 8686 *Steve Henson* 8687 8688 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8689 dtls1_buffer_record function under certain conditions. In particular this 8690 could occur if an attacker sent repeated DTLS records with the same 8691 sequence number but for the next epoch. The memory leak could be exploited 8692 by an attacker in a Denial of Service attack through memory exhaustion. 8693 Thanks to Chris Mueller for reporting this issue. 8694 ([CVE-2015-0206]) 8695 8696 *Matt Caswell* 8697 8698 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8699 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8700 method would be set to NULL which could later result in a NULL pointer 8701 dereference. Thanks to Frank Schmirler for reporting this issue. 8702 ([CVE-2014-3569]) 8703 8704 *Kurt Roeckx* 8705 8706 * Abort handshake if server key exchange message is omitted for ephemeral 8707 ECDH ciphersuites. 8708 8709 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8710 reporting this issue. 8711 ([CVE-2014-3572]) 8712 8713 *Steve Henson* 8714 8715 * Remove non-export ephemeral RSA code on client and server. This code 8716 violated the TLS standard by allowing the use of temporary RSA keys in 8717 non-export ciphersuites and could be used by a server to effectively 8718 downgrade the RSA key length used to a value smaller than the server 8719 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8720 INRIA or reporting this issue. 8721 ([CVE-2015-0204]) 8722 8723 *Steve Henson* 8724 8725 * Fixed issue where DH client certificates are accepted without verification. 8726 An OpenSSL server will accept a DH certificate for client authentication 8727 without the certificate verify message. This effectively allows a client to 8728 authenticate without the use of a private key. This only affects servers 8729 which trust a client certificate authority which issues certificates 8730 containing DH keys: these are extremely rare and hardly ever encountered. 8731 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8732 this issue. 8733 ([CVE-2015-0205]) 8734 8735 *Steve Henson* 8736 8737 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8738 results on some platforms, including x86_64. This bug occurs at random 8739 with a very low probability, and is not known to be exploitable in any 8740 way, though its exact impact is difficult to determine. Thanks to Pieter 8741 Wuille (Blockstream) who reported this issue and also suggested an initial 8742 fix. Further analysis was conducted by the OpenSSL development team and 8743 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8744 the OpenSSL core team. 8745 ([CVE-2014-3570]) 8746 8747 *Andy Polyakov* 8748 8749 * Fix various certificate fingerprint issues. 8750 8751 By using non-DER or invalid encodings outside the signed portion of a 8752 certificate the fingerprint can be changed without breaking the signature. 8753 Although no details of the signed portion of the certificate can be changed 8754 this can cause problems with some applications: e.g. those using the 8755 certificate fingerprint for blacklists. 8756 8757 1. Reject signatures with non zero unused bits. 8758 8759 If the BIT STRING containing the signature has non zero unused bits reject 8760 the signature. All current signature algorithms require zero unused bits. 8761 8762 2. Check certificate algorithm consistency. 8763 8764 Check the AlgorithmIdentifier inside TBS matches the one in the 8765 certificate signature. NB: this will result in signature failure 8766 errors for some broken certificates. 8767 8768 Thanks to Konrad Kraszewski from Google for reporting this issue. 8769 8770 3. Check DSA/ECDSA signatures use DER. 8771 8772 Reencode DSA/ECDSA signatures and compare with the original received 8773 signature. Return an error if there is a mismatch. 8774 8775 This will reject various cases including garbage after signature 8776 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8777 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8778 (negative or with leading zeroes). 8779 8780 Further analysis was conducted and fixes were developed by Stephen Henson 8781 of the OpenSSL core team. 8782 8783 ([CVE-2014-8275]) 8784 8785 *Steve Henson* 8786 8787### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8788 8789 * Session Ticket Memory Leak. 8790 8791 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8792 integrity of that ticket is first verified. In the event of a session 8793 ticket integrity check failing, OpenSSL will fail to free memory 8794 causing a memory leak. By sending a large number of invalid session 8795 tickets an attacker could exploit this issue in a Denial Of Service 8796 attack. 8797 ([CVE-2014-3567]) 8798 8799 *Steve Henson* 8800 8801 * Build option no-ssl3 is incomplete. 8802 8803 When OpenSSL is configured with "no-ssl3" as a build option, servers 8804 could accept and complete a SSL 3.0 handshake, and clients could be 8805 configured to send them. 8806 ([CVE-2014-3568]) 8807 8808 *Akamai and the OpenSSL team* 8809 8810 * Add support for TLS_FALLBACK_SCSV. 8811 Client applications doing fallback retries should call 8812 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8813 ([CVE-2014-3566]) 8814 8815 *Adam Langley, Bodo Moeller* 8816 8817 * Add additional DigestInfo checks. 8818 8819 Reencode DigestInto in DER and check against the original when 8820 verifying RSA signature: this will reject any improperly encoded 8821 DigestInfo structures. 8822 8823 Note: this is a precautionary measure and no attacks are currently known. 8824 8825 *Steve Henson* 8826 8827### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8828 8829 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8830 to a denial of service attack. A malicious server can crash the client 8831 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8832 ciphersuite and sending carefully crafted handshake messages. 8833 8834 Thanks to Felix Gröbert (Google) for discovering and researching this 8835 issue. 8836 ([CVE-2014-3510]) 8837 8838 *Emilia Käsper* 8839 8840 * By sending carefully crafted DTLS packets an attacker could cause openssl 8841 to leak memory. This can be exploited through a Denial of Service attack. 8842 Thanks to Adam Langley for discovering and researching this issue. 8843 ([CVE-2014-3507]) 8844 8845 *Adam Langley* 8846 8847 * An attacker can force openssl to consume large amounts of memory whilst 8848 processing DTLS handshake messages. This can be exploited through a 8849 Denial of Service attack. 8850 Thanks to Adam Langley for discovering and researching this issue. 8851 ([CVE-2014-3506]) 8852 8853 *Adam Langley* 8854 8855 * An attacker can force an error condition which causes openssl to crash 8856 whilst processing DTLS packets due to memory being freed twice. This 8857 can be exploited through a Denial of Service attack. 8858 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8859 this issue. 8860 ([CVE-2014-3505]) 8861 8862 *Adam Langley* 8863 8864 * If a multithreaded client connects to a malicious server using a resumed 8865 session and the server sends an ec point format extension it could write 8866 up to 255 bytes to freed memory. 8867 8868 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8869 issue. 8870 ([CVE-2014-3509]) 8871 8872 *Gabor Tyukasz* 8873 8874 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8875 X509_name_oneline, X509_name_print_ex et al. to leak some information 8876 from the stack. Applications may be affected if they echo pretty printing 8877 output to the attacker. 8878 8879 Thanks to Ivan Fratric (Google) for discovering this issue. 8880 ([CVE-2014-3508]) 8881 8882 *Emilia Käsper, and Steve Henson* 8883 8884 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8885 for corner cases. (Certain input points at infinity could lead to 8886 bogus results, with non-infinity inputs mapped to infinity too.) 8887 8888 *Bodo Moeller* 8889 8890### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8891 8892 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8893 handshake can force the use of weak keying material in OpenSSL 8894 SSL/TLS clients and servers. 8895 8896 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8897 researching this issue. ([CVE-2014-0224]) 8898 8899 *KIKUCHI Masashi, Steve Henson* 8900 8901 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8902 OpenSSL DTLS client the code can be made to recurse eventually crashing 8903 in a DoS attack. 8904 8905 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8906 ([CVE-2014-0221]) 8907 8908 *Imre Rad, Steve Henson* 8909 8910 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8911 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8912 client or server. This is potentially exploitable to run arbitrary 8913 code on a vulnerable client or server. 8914 8915 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8916 8917 *Jüri Aedla, Steve Henson* 8918 8919 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8920 are subject to a denial of service attack. 8921 8922 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8923 this issue. ([CVE-2014-3470]) 8924 8925 *Felix Gröbert, Ivan Fratric, Steve Henson* 8926 8927 * Harmonize version and its documentation. -f flag is used to display 8928 compilation flags. 8929 8930 *mancha <mancha1@zoho.com>* 8931 8932 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8933 in i2d_ECPrivateKey. 8934 8935 *mancha <mancha1@zoho.com>* 8936 8937 * Fix some double frees. These are not thought to be exploitable. 8938 8939 *mancha <mancha1@zoho.com>* 8940 8941 * Fix for the attack described in the paper "Recovering OpenSSL 8942 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8943 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8944 <http://eprint.iacr.org/2014/140> 8945 8946 Thanks to Yuval Yarom and Naomi Benger for discovering this 8947 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8948 8949 *Yuval Yarom and Naomi Benger* 8950 8951### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8952 8953 * Keep original DTLS digest and encryption contexts in retransmission 8954 structures so we can use the previous session parameters if they need 8955 to be resent. ([CVE-2013-6450]) 8956 8957 *Steve Henson* 8958 8959 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8960 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8961 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8962 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8963 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8964 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8965 8966 *Rob Stradling, Adam Langley* 8967 8968### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8969 8970 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8971 8972 This addresses the flaw in CBC record processing discovered by 8973 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8974 at: <http://www.isg.rhul.ac.uk/tls/> 8975 8976 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8977 Security Group at Royal Holloway, University of London 8978 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8979 Emilia Käsper for the initial patch. 8980 ([CVE-2013-0169]) 8981 8982 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8983 8984 * Return an error when checking OCSP signatures when key is NULL. 8985 This fixes a DoS attack. ([CVE-2013-0166]) 8986 8987 *Steve Henson* 8988 8989 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8990 the right response is stapled. Also change SSL_get_certificate() 8991 so it returns the certificate actually sent. 8992 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8993 (This is a backport) 8994 8995 *Rob Stradling <rob.stradling@comodo.com>* 8996 8997 * Fix possible deadlock when decoding public keys. 8998 8999 *Steve Henson* 9000 9001### Changes between 1.0.0i and 1.0.0j [10 May 2012] 9002 9003[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 9004OpenSSL 1.0.1.] 9005 9006 * Sanity check record length before skipping explicit IV in DTLS 9007 to fix DoS attack. 9008 9009 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 9010 fuzzing as a service testing platform. 9011 ([CVE-2012-2333]) 9012 9013 *Steve Henson* 9014 9015 * Initialise tkeylen properly when encrypting CMS messages. 9016 Thanks to Solar Designer of Openwall for reporting this issue. 9017 9018 *Steve Henson* 9019 9020### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 9021 9022 * Check for potentially exploitable overflows in asn1_d2i_read_bio 9023 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 9024 in CRYPTO_realloc_clean. 9025 9026 Thanks to Tavis Ormandy, Google Security Team, for discovering this 9027 issue and to Adam Langley <agl@chromium.org> for fixing it. 9028 ([CVE-2012-2110]) 9029 9030 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 9031 9032### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 9033 9034 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 9035 in CMS and PKCS7 code. When RSA decryption fails use a random key for 9036 content decryption and always return the same error. Note: this attack 9037 needs on average 2^20 messages so it only affects automated senders. The 9038 old behaviour can be re-enabled in the CMS code by setting the 9039 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 9040 an MMA defence is not necessary. 9041 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 9042 this issue. ([CVE-2012-0884]) 9043 9044 *Steve Henson* 9045 9046 * Fix CVE-2011-4619: make sure we really are receiving a 9047 client hello before rejecting multiple SGC restarts. Thanks to 9048 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 9049 9050 *Steve Henson* 9051 9052### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 9053 9054 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 9055 Thanks to Antonio Martin, Enterprise Secure Access Research and 9056 Development, Cisco Systems, Inc. for discovering this bug and 9057 preparing a fix. ([CVE-2012-0050]) 9058 9059 *Antonio Martin* 9060 9061### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 9062 9063 * Nadhem Alfardan and Kenny Paterson have discovered an extension 9064 of the Vaudenay padding oracle attack on CBC mode encryption 9065 which enables an efficient plaintext recovery attack against 9066 the OpenSSL implementation of DTLS. Their attack exploits timing 9067 differences arising during decryption processing. A research 9068 paper describing this attack can be found at: 9069 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 9070 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 9071 Security Group at Royal Holloway, University of London 9072 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 9073 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 9074 for preparing the fix. ([CVE-2011-4108]) 9075 9076 *Robin Seggelmann, Michael Tuexen* 9077 9078 * Clear bytes used for block padding of SSL 3.0 records. 9079 ([CVE-2011-4576]) 9080 9081 *Adam Langley (Google)* 9082 9083 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 9084 Kadianakis <desnacked@gmail.com> for discovering this issue and 9085 Adam Langley for preparing the fix. ([CVE-2011-4619]) 9086 9087 *Adam Langley (Google)* 9088 9089 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 9090 9091 *Andrey Kulikov <amdeich@gmail.com>* 9092 9093 * Prevent malformed RFC3779 data triggering an assertion failure. 9094 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 9095 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 9096 9097 *Rob Austein <sra@hactrn.net>* 9098 9099 * Improved PRNG seeding for VOS. 9100 9101 *Paul Green <Paul.Green@stratus.com>* 9102 9103 * Fix ssl_ciph.c set-up race. 9104 9105 *Adam Langley (Google)* 9106 9107 * Fix spurious failures in ecdsatest.c. 9108 9109 *Emilia Käsper (Google)* 9110 9111 * Fix the BIO_f_buffer() implementation (which was mixing different 9112 interpretations of the `..._len` fields). 9113 9114 *Adam Langley (Google)* 9115 9116 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 9117 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 9118 threads won't reuse the same blinding coefficients. 9119 9120 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 9121 lock to call BN_BLINDING_invert_ex, and avoids one use of 9122 BN_BLINDING_update for each BN_BLINDING structure (previously, 9123 the last update always remained unused). 9124 9125 *Emilia Käsper (Google)* 9126 9127 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 9128 9129 *Bob Buckholz (Google)* 9130 9131### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 9132 9133 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 9134 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 9135 9136 *Kaspar Brand <ossl@velox.ch>* 9137 9138 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 9139 for multi-threaded use of ECDH. ([CVE-2011-3210]) 9140 9141 *Adam Langley (Google)* 9142 9143 * Fix x509_name_ex_d2i memory leak on bad inputs. 9144 9145 *Bodo Moeller* 9146 9147 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 9148 signature public key algorithm by using OID xref utilities instead. 9149 Before this you could only use some ECC ciphersuites with SHA1 only. 9150 9151 *Steve Henson* 9152 9153 * Add protection against ECDSA timing attacks as mentioned in the paper 9154 by Billy Bob Brumley and Nicola Tuveri, see: 9155 <http://eprint.iacr.org/2011/232.pdf> 9156 9157 *Billy Bob Brumley and Nicola Tuveri* 9158 9159### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 9160 9161 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 9162 9163 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 9164 9165 * Fix bug in string printing code: if *any* escaping is enabled we must 9166 escape the escape character (backslash) or the resulting string is 9167 ambiguous. 9168 9169 *Steve Henson* 9170 9171### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 9172 9173 * Disable code workaround for ancient and obsolete Netscape browsers 9174 and servers: an attacker can use it in a ciphersuite downgrade attack. 9175 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 9176 9177 *Steve Henson* 9178 9179 * Fixed J-PAKE implementation error, originally discovered by 9180 Sebastien Martini, further info and confirmation from Stefan 9181 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 9182 9183 *Ben Laurie* 9184 9185### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 9186 9187 * Fix extension code to avoid race conditions which can result in a buffer 9188 overrun vulnerability: resumed sessions must not be modified as they can 9189 be shared by multiple threads. CVE-2010-3864 9190 9191 *Steve Henson* 9192 9193 * Fix WIN32 build system to correctly link an ENGINE directory into 9194 a DLL. 9195 9196 *Steve Henson* 9197 9198### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 9199 9200 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 9201 ([CVE-2010-1633]) 9202 9203 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 9204 9205### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 9206 9207 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 9208 context. The operation can be customised via the ctrl mechanism in 9209 case ENGINEs want to include additional functionality. 9210 9211 *Steve Henson* 9212 9213 * Tolerate yet another broken PKCS#8 key format: private key value negative. 9214 9215 *Steve Henson* 9216 9217 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 9218 output hashes compatible with older versions of OpenSSL. 9219 9220 *Willy Weisz <weisz@vcpc.univie.ac.at>* 9221 9222 * Fix compression algorithm handling: if resuming a session use the 9223 compression algorithm of the resumed session instead of determining 9224 it from client hello again. Don't allow server to change algorithm. 9225 9226 *Steve Henson* 9227 9228 * Add load_crls() function to commands tidying load_certs() too. Add option 9229 to verify utility to allow additional CRLs to be included. 9230 9231 *Steve Henson* 9232 9233 * Update OCSP request code to permit adding custom headers to the request: 9234 some responders need this. 9235 9236 *Steve Henson* 9237 9238 * The function EVP_PKEY_sign() returns <=0 on error: check return code 9239 correctly. 9240 9241 *Julia Lawall <julia@diku.dk>* 9242 9243 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 9244 needlessly dereferenced structures, used obsolete functions and 9245 didn't handle all updated verify codes correctly. 9246 9247 *Steve Henson* 9248 9249 * Disable MD2 in the default configuration. 9250 9251 *Steve Henson* 9252 9253 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 9254 indicate the initial BIO being pushed or popped. This makes it possible 9255 to determine whether the BIO is the one explicitly called or as a result 9256 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 9257 it handles reference counts correctly and doesn't zero out the I/O bio 9258 when it is not being explicitly popped. WARNING: applications which 9259 included workarounds for the old buggy behaviour will need to be modified 9260 or they could free up already freed BIOs. 9261 9262 *Steve Henson* 9263 9264 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 9265 renaming to all platforms (within the 0.9.8 branch, this was 9266 done conditionally on Netware platforms to avoid a name clash). 9267 9268 *Guenter <lists@gknw.net>* 9269 9270 * Add ECDHE and PSK support to DTLS. 9271 9272 *Michael Tuexen <tuexen@fh-muenster.de>* 9273 9274 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 9275 be used on C++. 9276 9277 *Steve Henson* 9278 9279 * Add "missing" function EVP_MD_flags() (without this the only way to 9280 retrieve a digest flags is by accessing the structure directly. Update 9281 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 9282 or cipher is registered as in the "from" argument. Print out all 9283 registered digests in the dgst usage message instead of manually 9284 attempting to work them out. 9285 9286 *Steve Henson* 9287 9288 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 9289 this allows the use of compression and extensions. Change default cipher 9290 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 9291 by default unless an application cipher string requests it. 9292 9293 *Steve Henson* 9294 9295 * Alter match criteria in PKCS12_parse(). It used to try to use local 9296 key ids to find matching certificates and keys but some PKCS#12 files 9297 don't follow the (somewhat unwritten) rules and this strategy fails. 9298 Now just gather all certificates together and the first private key 9299 then look for the first certificate that matches the key. 9300 9301 *Steve Henson* 9302 9303 * Support use of registered digest and cipher names for dgst and cipher 9304 commands instead of having to add each one as a special case. So now 9305 you can do: 9306 9307 openssl sha256 foo 9308 9309 as well as: 9310 9311 openssl dgst -sha256 foo 9312 9313 and this works for ENGINE based algorithms too. 9314 9315 *Steve Henson* 9316 9317 * Update Gost ENGINE to support parameter files. 9318 9319 *Victor B. Wagner <vitus@cryptocom.ru>* 9320 9321 * Support GeneralizedTime in ca utility. 9322 9323 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 9324 9325 * Enhance the hash format used for certificate directory links. The new 9326 form uses the canonical encoding (meaning equivalent names will work 9327 even if they aren't identical) and uses SHA1 instead of MD5. This form 9328 is incompatible with the older format and as a result c_rehash should 9329 be used to rebuild symbolic links. 9330 9331 *Steve Henson* 9332 9333 * Make PKCS#8 the default write format for private keys, replacing the 9334 traditional format. This form is standardised, more secure and doesn't 9335 include an implicit MD5 dependency. 9336 9337 *Steve Henson* 9338 9339 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 9340 committed to OpenSSL should pass this lot as a minimum. 9341 9342 *Steve Henson* 9343 9344 * Add session ticket override functionality for use by EAP-FAST. 9345 9346 *Jouni Malinen <j@w1.fi>* 9347 9348 * Modify HMAC functions to return a value. Since these can be implemented 9349 in an ENGINE errors can occur. 9350 9351 *Steve Henson* 9352 9353 * Type-checked OBJ_bsearch_ex. 9354 9355 *Ben Laurie* 9356 9357 * Type-checked OBJ_bsearch. Also some constification necessitated 9358 by type-checking. Still to come: TXT_DB, bsearch(?), 9359 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 9360 CONF_VALUE. 9361 9362 *Ben Laurie* 9363 9364 * New function OPENSSL_gmtime_adj() to add a specific number of days and 9365 seconds to a tm structure directly, instead of going through OS 9366 specific date routines. This avoids any issues with OS routines such 9367 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 9368 and X509_time_adj_ex() to cover the extended range. The existing 9369 X509_time_adj() is still usable and will no longer have any date issues. 9370 9371 *Steve Henson* 9372 9373 * Delta CRL support. New use deltas option which will attempt to locate 9374 and search any appropriate delta CRLs available. 9375 9376 This work was sponsored by Google. 9377 9378 *Steve Henson* 9379 9380 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9381 code and add additional score elements. Validate alternate CRL paths 9382 as part of the CRL checking and indicate a new error "CRL path validation 9383 error" in this case. Applications wanting additional details can use 9384 the verify callback and check the new "parent" field. If this is not 9385 NULL CRL path validation is taking place. Existing applications won't 9386 see this because it requires extended CRL support which is off by 9387 default. 9388 9389 This work was sponsored by Google. 9390 9391 *Steve Henson* 9392 9393 * Support for freshest CRL extension. 9394 9395 This work was sponsored by Google. 9396 9397 *Steve Henson* 9398 9399 * Initial indirect CRL support. Currently only supported in the CRLs 9400 passed directly and not via lookup. Process certificate issuer 9401 CRL entry extension and lookup CRL entries by bother issuer name 9402 and serial number. Check and process CRL issuer entry in IDP extension. 9403 9404 This work was sponsored by Google. 9405 9406 *Steve Henson* 9407 9408 * Add support for distinct certificate and CRL paths. The CRL issuer 9409 certificate is validated separately in this case. Only enabled if 9410 an extended CRL support flag is set: this flag will enable additional 9411 CRL functionality in future. 9412 9413 This work was sponsored by Google. 9414 9415 *Steve Henson* 9416 9417 * Add support for policy mappings extension. 9418 9419 This work was sponsored by Google. 9420 9421 *Steve Henson* 9422 9423 * Fixes to pathlength constraint, self issued certificate handling, 9424 policy processing to align with RFC3280 and PKITS tests. 9425 9426 This work was sponsored by Google. 9427 9428 *Steve Henson* 9429 9430 * Support for name constraints certificate extension. DN, email, DNS 9431 and URI types are currently supported. 9432 9433 This work was sponsored by Google. 9434 9435 *Steve Henson* 9436 9437 * To cater for systems that provide a pointer-based thread ID rather 9438 than numeric, deprecate the current numeric thread ID mechanism and 9439 replace it with a structure and associated callback type. This 9440 mechanism allows a numeric "hash" to be extracted from a thread ID in 9441 either case, and on platforms where pointers are larger than 'long', 9442 mixing is done to help ensure the numeric 'hash' is usable even if it 9443 can't be guaranteed unique. The default mechanism is to use "&errno" 9444 as a pointer-based thread ID to distinguish between threads. 9445 9446 Applications that want to provide their own thread IDs should now use 9447 CRYPTO_THREADID_set_callback() to register a callback that will call 9448 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9449 9450 Note that ERR_remove_state() is now deprecated, because it is tied 9451 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9452 to free the current thread's error state should be replaced by 9453 ERR_remove_thread_state(NULL). 9454 9455 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9456 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9457 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9458 application was previously providing a numeric thread callback that 9459 was inappropriate for distinguishing threads, then uniqueness might 9460 have been obtained with &errno that happened immediately in the 9461 intermediate development versions of OpenSSL; this is no longer the 9462 case, the numeric thread callback will now override the automatic use 9463 of &errno.) 9464 9465 *Geoff Thorpe, with help from Bodo Moeller* 9466 9467 * Initial support for different CRL issuing certificates. This covers a 9468 simple case where the self issued certificates in the chain exist and 9469 the real CRL issuer is higher in the existing chain. 9470 9471 This work was sponsored by Google. 9472 9473 *Steve Henson* 9474 9475 * Removed effectively defunct crypto/store from the build. 9476 9477 *Ben Laurie* 9478 9479 * Revamp of STACK to provide stronger type-checking. Still to come: 9480 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9481 ASN1_STRING, CONF_VALUE. 9482 9483 *Ben Laurie* 9484 9485 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9486 RAM on SSL connections. This option can save about 34k per idle SSL. 9487 9488 *Nick Mathewson* 9489 9490 * Revamp of LHASH to provide stronger type-checking. Still to come: 9491 STACK, TXT_DB, bsearch, qsort. 9492 9493 *Ben Laurie* 9494 9495 * Initial support for Cryptographic Message Syntax (aka CMS) based 9496 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9497 support for data, signedData, compressedData, digestedData and 9498 encryptedData, envelopedData types included. Scripts to check against 9499 RFC4134 examples draft and interop and consistency checks of many 9500 content types and variants. 9501 9502 *Steve Henson* 9503 9504 * Add options to enc utility to support use of zlib compression BIO. 9505 9506 *Steve Henson* 9507 9508 * Extend mk1mf to support importing of options and assembly language 9509 files from Configure script, currently only included in VC-WIN32. 9510 The assembly language rules can now optionally generate the source 9511 files from the associated perl scripts. 9512 9513 *Steve Henson* 9514 9515 * Implement remaining functionality needed to support GOST ciphersuites. 9516 Interop testing has been performed using CryptoPro implementations. 9517 9518 *Victor B. Wagner <vitus@cryptocom.ru>* 9519 9520 * s390x assembler pack. 9521 9522 *Andy Polyakov* 9523 9524 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9525 "family." 9526 9527 *Andy Polyakov* 9528 9529 * Implement Opaque PRF Input TLS extension as specified in 9530 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9531 official specification yet and no extension type assignment by 9532 IANA exists, this extension (for now) will have to be explicitly 9533 enabled when building OpenSSL by providing the extension number 9534 to use. For example, specify an option 9535 9536 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9537 9538 to the "config" or "Configure" script to enable the extension, 9539 assuming extension number 0x9527 (which is a completely arbitrary 9540 and unofficial assignment based on the MD5 hash of the Internet 9541 Draft). Note that by doing so, you potentially lose 9542 interoperability with other TLS implementations since these might 9543 be using the same extension number for other purposes. 9544 9545 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9546 opaque PRF input value to use in the handshake. This will create 9547 an internal copy of the length-'len' string at 'src', and will 9548 return non-zero for success. 9549 9550 To get more control and flexibility, provide a callback function 9551 by using 9552 9553 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9554 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9555 9556 where 9557 9558 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9559 void *arg; 9560 9561 Callback function 'cb' will be called in handshakes, and is 9562 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9563 Argument 'arg' is for application purposes (the value as given to 9564 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9565 be provided to the callback function). The callback function 9566 has to return non-zero to report success: usually 1 to use opaque 9567 PRF input just if possible, or 2 to enforce use of the opaque PRF 9568 input. In the latter case, the library will abort the handshake 9569 if opaque PRF input is not successfully negotiated. 9570 9571 Arguments 'peerinput' and 'len' given to the callback function 9572 will always be NULL and 0 in the case of a client. A server will 9573 see the client's opaque PRF input through these variables if 9574 available (NULL and 0 otherwise). Note that if the server 9575 provides an opaque PRF input, the length must be the same as the 9576 length of the client's opaque PRF input. 9577 9578 Note that the callback function will only be called when creating 9579 a new session (session resumption can resume whatever was 9580 previously negotiated), and will not be called in SSL 2.0 9581 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9582 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9583 for applications that need to enforce opaque PRF input. 9584 9585 *Bodo Moeller* 9586 9587 * Update ssl code to support digests other than SHA1+MD5 for handshake 9588 MAC. 9589 9590 *Victor B. Wagner <vitus@cryptocom.ru>* 9591 9592 * Add RFC4507 support to OpenSSL. This includes the corrections in 9593 RFC4507bis. The encrypted ticket format is an encrypted encoded 9594 SSL_SESSION structure, that way new session features are automatically 9595 supported. 9596 9597 If a client application caches session in an SSL_SESSION structure 9598 support is transparent because tickets are now stored in the encoded 9599 SSL_SESSION. 9600 9601 The SSL_CTX structure automatically generates keys for ticket 9602 protection in servers so again support should be possible 9603 with no application modification. 9604 9605 If a client or server wishes to disable RFC4507 support then the option 9606 SSL_OP_NO_TICKET can be set. 9607 9608 Add a TLS extension debugging callback to allow the contents of any client 9609 or server extensions to be examined. 9610 9611 This work was sponsored by Google. 9612 9613 *Steve Henson* 9614 9615 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9616 OpenSSL should now compile cleanly on gcc 4.2 9617 9618 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9619 9620 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9621 support including streaming MAC support: this is required for GOST 9622 ciphersuite support. 9623 9624 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9625 9626 * Add option -stream to use PKCS#7 streaming in smime utility. New 9627 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9628 to output in BER and PEM format. 9629 9630 *Steve Henson* 9631 9632 * Experimental support for use of HMAC via EVP_PKEY interface. This 9633 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9634 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9635 ENGINE support for HMAC keys which are unextractable. New -mac and 9636 -macopt options to dgst utility. 9637 9638 *Steve Henson* 9639 9640 * New option -sigopt to dgst utility. Update dgst to use 9641 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9642 alternative signing parameters such as X9.31 or PSS in the dgst 9643 utility. 9644 9645 *Steve Henson* 9646 9647 * Change ssl_cipher_apply_rule(), the internal function that does 9648 the work each time a ciphersuite string requests enabling 9649 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9650 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9651 the order of disabled ciphersuites such that those ciphersuites 9652 that most recently went from enabled to disabled not only stay 9653 in order with respect to each other, but also have higher priority 9654 than other disabled ciphersuites the next time ciphersuites are 9655 enabled again. 9656 9657 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9658 the same ciphersuites as with "HIGH" alone, but in a specific 9659 order where the PSK ciphersuites come first (since they are the 9660 most recently disabled ciphersuites when "HIGH" is parsed). 9661 9662 Also, change ssl_create_cipher_list() (using this new 9663 functionality) such that between otherwise identical 9664 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9665 the default order. 9666 9667 *Bodo Moeller* 9668 9669 * Change ssl_create_cipher_list() so that it automatically 9670 arranges the ciphersuites in reasonable order before starting 9671 to process the rule string. Thus, the definition for "DEFAULT" 9672 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9673 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9674 This makes it much easier to arrive at a reasonable default order 9675 in applications for which anonymous ciphers are OK (meaning 9676 that you can't actually use DEFAULT). 9677 9678 *Bodo Moeller; suggested by Victor Duchovni* 9679 9680 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9681 processing) into multiple integers instead of setting 9682 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9683 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9684 (These masks as well as the individual bit definitions are hidden 9685 away into the non-exported interface ssl/ssl_locl.h, so this 9686 change to the definition of the SSL_CIPHER structure shouldn't 9687 affect applications.) This give us more bits for each of these 9688 categories, so there is no longer a need to coagulate AES128 and 9689 AES256 into a single algorithm bit, and to coagulate Camellia128 9690 and Camellia256 into a single algorithm bit, which has led to all 9691 kinds of kludges. 9692 9693 Thus, among other things, the kludge introduced in 0.9.7m and 9694 0.9.8e for masking out AES256 independently of AES128 or masking 9695 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9696 9697 With the change, we also introduce new ciphersuite aliases that 9698 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9699 "CAMELLIA256". 9700 9701 *Bodo Moeller* 9702 9703 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9704 Use the leftmost N bytes of the signature input if the input is 9705 larger than the prime q (with N being the size in bytes of q). 9706 9707 *Nils Larsch* 9708 9709 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9710 it yet and it is largely untested. 9711 9712 *Steve Henson* 9713 9714 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9715 9716 *Nils Larsch* 9717 9718 * Initial incomplete changes to avoid need for function casts in OpenSSL 9719 some compilers (gcc 4.2 and later) reject their use. Safestack is 9720 reimplemented. Update ASN1 to avoid use of legacy functions. 9721 9722 *Steve Henson* 9723 9724 * Win32/64 targets are linked with Winsock2. 9725 9726 *Andy Polyakov* 9727 9728 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9729 to external functions. This can be used to increase CRL handling 9730 efficiency especially when CRLs are very large by (for example) storing 9731 the CRL revoked certificates in a database. 9732 9733 *Steve Henson* 9734 9735 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9736 new CRLs added to a directory can be used. New command line option 9737 -verify_return_error to s_client and s_server. This causes real errors 9738 to be returned by the verify callback instead of carrying on no matter 9739 what. This reflects the way a "real world" verify callback would behave. 9740 9741 *Steve Henson* 9742 9743 * GOST engine, supporting several GOST algorithms and public key formats. 9744 Kindly donated by Cryptocom. 9745 9746 *Cryptocom* 9747 9748 * Partial support for Issuing Distribution Point CRL extension. CRLs 9749 partitioned by DP are handled but no indirect CRL or reason partitioning 9750 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9751 selected via a scoring technique which handles IDP and AKID in CRLs. 9752 9753 *Steve Henson* 9754 9755 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9756 will ultimately be used for all verify operations: this will remove the 9757 X509_STORE dependency on certificate verification and allow alternative 9758 lookup methods. X509_STORE based implementations of these two callbacks. 9759 9760 *Steve Henson* 9761 9762 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9763 Modify get_crl() to find a valid (unexpired) CRL if possible. 9764 9765 *Steve Henson* 9766 9767 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9768 this would be called X509_CRL_cmp() but that name is already used by 9769 a function that just compares CRL issuer names. Cache several CRL 9770 extensions in X509_CRL structure and cache CRLDP in X509. 9771 9772 *Steve Henson* 9773 9774 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9775 this maps equivalent X509_NAME structures into a consistent structure. 9776 Name comparison can then be performed rapidly using memcmp(). 9777 9778 *Steve Henson* 9779 9780 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9781 utility. 9782 9783 *Steve Henson* 9784 9785 * Allow digests to supply their own micalg string for S/MIME type using 9786 the ctrl EVP_MD_CTRL_MICALG. 9787 9788 *Steve Henson* 9789 9790 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9791 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9792 ctrl. It can then customise the structure before and/or after signing 9793 if necessary. 9794 9795 *Steve Henson* 9796 9797 * New function OBJ_add_sigid() to allow application defined signature OIDs 9798 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9799 to free up any added signature OIDs. 9800 9801 *Steve Henson* 9802 9803 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9804 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9805 digest and cipher tables. New options added to openssl utility: 9806 list-message-digest-algorithms and list-cipher-algorithms. 9807 9808 *Steve Henson* 9809 9810 * Change the array representation of binary polynomials: the list 9811 of degrees of non-zero coefficients is now terminated with -1. 9812 Previously it was terminated with 0, which was also part of the 9813 value; thus, the array representation was not applicable to 9814 polynomials where t^0 has coefficient zero. This change makes 9815 the array representation useful in a more general context. 9816 9817 *Douglas Stebila* 9818 9819 * Various modifications and fixes to SSL/TLS cipher string 9820 handling. For ECC, the code now distinguishes between fixed ECDH 9821 with RSA certificates on the one hand and with ECDSA certificates 9822 on the other hand, since these are separate ciphersuites. The 9823 unused code for Fortezza ciphersuites has been removed. 9824 9825 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9826 (not "ECDHE"). For consistency with the code for DH 9827 certificates, use of ECDH certificates is now considered ECDH 9828 authentication, not RSA or ECDSA authentication (the latter is 9829 merely the CA's signing algorithm and not actively used in the 9830 protocol). 9831 9832 The temporary ciphersuite alias "ECCdraft" is no longer 9833 available, and ECC ciphersuites are no longer excluded from "ALL" 9834 and "DEFAULT". The following aliases now exist for RFC 4492 9835 ciphersuites, most of these by analogy with the DH case: 9836 9837 kECDHr - ECDH cert, signed with RSA 9838 kECDHe - ECDH cert, signed with ECDSA 9839 kECDH - ECDH cert (signed with either RSA or ECDSA) 9840 kEECDH - ephemeral ECDH 9841 ECDH - ECDH cert or ephemeral ECDH 9842 9843 aECDH - ECDH cert 9844 aECDSA - ECDSA cert 9845 ECDSA - ECDSA cert 9846 9847 AECDH - anonymous ECDH 9848 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9849 9850 *Bodo Moeller* 9851 9852 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9853 Use correct micalg parameters depending on digest(s) in signed message. 9854 9855 *Steve Henson* 9856 9857 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9858 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9859 9860 *Steve Henson* 9861 9862 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9863 an engine to register a method. Add ENGINE lookups for methods and 9864 functional reference processing. 9865 9866 *Steve Henson* 9867 9868 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9869 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9870 process. 9871 9872 *Steve Henson* 9873 9874 * New -resign option to smime utility. This adds one or more signers 9875 to an existing PKCS#7 signedData structure. Also -md option to use an 9876 alternative message digest algorithm for signing. 9877 9878 *Steve Henson* 9879 9880 * Tidy up PKCS#7 routines and add new functions to make it easier to 9881 create PKCS7 structures containing multiple signers. Update smime 9882 application to support multiple signers. 9883 9884 *Steve Henson* 9885 9886 * New -macalg option to pkcs12 utility to allow setting of an alternative 9887 digest MAC. 9888 9889 *Steve Henson* 9890 9891 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9892 Reorganize PBE internals to lookup from a static table using NIDs, 9893 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9894 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9895 PRF which will be automatically used with PBES2. 9896 9897 *Steve Henson* 9898 9899 * Replace the algorithm specific calls to generate keys in "req" with the 9900 new API. 9901 9902 *Steve Henson* 9903 9904 * Update PKCS#7 enveloped data routines to use new API. This is now 9905 supported by any public key method supporting the encrypt operation. A 9906 ctrl is added to allow the public key algorithm to examine or modify 9907 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9908 a no op. 9909 9910 *Steve Henson* 9911 9912 * Add a ctrl to asn1 method to allow a public key algorithm to express 9913 a default digest type to use. In most cases this will be SHA1 but some 9914 algorithms (such as GOST) need to specify an alternative digest. The 9915 return value indicates how strong the preference is 1 means optional and 9916 2 is mandatory (that is it is the only supported type). Modify 9917 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9918 use the default md. Update openssl utilities to use the default digest 9919 type for signing if it is not explicitly indicated. 9920 9921 *Steve Henson* 9922 9923 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9924 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9925 signing method from the key type. This effectively removes the link 9926 between digests and public key types. 9927 9928 *Steve Henson* 9929 9930 * Add an OID cross reference table and utility functions. Its purpose is to 9931 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9932 rsaEncryption. This will allow some of the algorithm specific hackery 9933 needed to use the correct OID to be removed. 9934 9935 *Steve Henson* 9936 9937 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9938 structures for PKCS7_sign(). They are now set up by the relevant public 9939 key ASN1 method. 9940 9941 *Steve Henson* 9942 9943 * Add provisional EC pkey method with support for ECDSA and ECDH. 9944 9945 *Steve Henson* 9946 9947 * Add support for key derivation (agreement) in the API, DH method and 9948 pkeyutl. 9949 9950 *Steve Henson* 9951 9952 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9953 public and private key formats. As a side effect these add additional 9954 command line functionality not previously available: DSA signatures can be 9955 generated and verified using pkeyutl and DH key support and generation in 9956 pkey, genpkey. 9957 9958 *Steve Henson* 9959 9960 * BeOS support. 9961 9962 *Oliver Tappe <zooey@hirschkaefer.de>* 9963 9964 * New make target "install_html_docs" installs HTML renditions of the 9965 manual pages. 9966 9967 *Oliver Tappe <zooey@hirschkaefer.de>* 9968 9969 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9970 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9971 support key and parameter generation and add initial key generation 9972 functionality for RSA. 9973 9974 *Steve Henson* 9975 9976 * Add functions for main EVP_PKEY_method operations. The undocumented 9977 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9978 `EVP_PKEY_{encrypt,decrypt}_old`. 9979 9980 *Steve Henson* 9981 9982 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9983 key API, doesn't do much yet. 9984 9985 *Steve Henson* 9986 9987 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9988 public key algorithms. New option to openssl utility: 9989 "list-public-key-algorithms" to print out info. 9990 9991 *Steve Henson* 9992 9993 * Implement the Supported Elliptic Curves Extension for 9994 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9995 9996 *Douglas Stebila* 9997 9998 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9999 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 10000 10001 *Steve Henson* 10002 10003 * New utilities pkey and pkeyparam. These are similar to algorithm specific 10004 utilities such as rsa, dsa, dsaparam etc except they process any key 10005 type. 10006 10007 *Steve Henson* 10008 10009 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 10010 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 10011 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 10012 structure. 10013 10014 *Steve Henson* 10015 10016 * Initial support for pluggable public key ASN1. 10017 De-spaghettify the public key ASN1 handling. Move public and private 10018 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 10019 algorithm specific handling to a single module within the relevant 10020 algorithm directory. Add functions to allow (near) opaque processing 10021 of public and private key structures. 10022 10023 *Steve Henson* 10024 10025 * Implement the Supported Point Formats Extension for 10026 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 10027 10028 *Douglas Stebila* 10029 10030 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 10031 for the psk identity [hint] and the psk callback functions to the 10032 SSL_SESSION, SSL and SSL_CTX structure. 10033 10034 New ciphersuites: 10035 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 10036 PSK-AES256-CBC-SHA 10037 10038 New functions: 10039 SSL_CTX_use_psk_identity_hint 10040 SSL_get_psk_identity_hint 10041 SSL_get_psk_identity 10042 SSL_use_psk_identity_hint 10043 10044 *Mika Kousa and Pasi Eronen of Nokia Corporation* 10045 10046 * Add RFC 3161 compliant time stamp request creation, response generation 10047 and response verification functionality. 10048 10049 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 10050 10051 * Add initial support for TLS extensions, specifically for the server_name 10052 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10053 have new members for a host name. The SSL data structure has an 10054 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10055 stored in that context to allow for session resumption, even after the 10056 SSL has been switched to a new SSL_CTX in reaction to a client's 10057 server_name extension. 10058 10059 New functions (subject to change): 10060 10061 SSL_get_servername() 10062 SSL_get_servername_type() 10063 SSL_set_SSL_CTX() 10064 10065 New CTRL codes and macros (subject to change): 10066 10067 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10068 - SSL_CTX_set_tlsext_servername_callback() 10069 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10070 - SSL_CTX_set_tlsext_servername_arg() 10071 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10072 10073 openssl s_client has a new '-servername ...' option. 10074 10075 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10076 '-key2 ...', '-servername_fatal' (subject to change). This allows 10077 testing the HostName extension for a specific single host name ('-cert' 10078 and '-key' remain fallbacks for handshakes without HostName 10079 negotiation). If the unrecognized_name alert has to be sent, this by 10080 default is a warning; it becomes fatal with the '-servername_fatal' 10081 option. 10082 10083 *Peter Sylvester, Remy Allais, Christophe Renou* 10084 10085 * Whirlpool hash implementation is added. 10086 10087 *Andy Polyakov* 10088 10089 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 10090 bn(64,32). Because of instruction set limitations it doesn't have 10091 any negative impact on performance. This was done mostly in order 10092 to make it possible to share assembler modules, such as bn_mul_mont 10093 implementations, between 32- and 64-bit builds without hassle. 10094 10095 *Andy Polyakov* 10096 10097 * Move code previously exiled into file crypto/ec/ec2_smpt.c 10098 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 10099 macro. 10100 10101 *Bodo Moeller* 10102 10103 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 10104 dedicated Montgomery multiplication procedure, is introduced. 10105 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 10106 "64-bit" performance on certain 32-bit targets. 10107 10108 *Andy Polyakov* 10109 10110 * New option SSL_OP_NO_COMP to disable use of compression selectively 10111 in SSL structures. New SSL ctrl to set maximum send fragment size. 10112 Save memory by setting the I/O buffer sizes dynamically instead of 10113 using the maximum available value. 10114 10115 *Steve Henson* 10116 10117 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 10118 in addition to the text details. 10119 10120 *Bodo Moeller* 10121 10122 * Very, very preliminary EXPERIMENTAL support for printing of general 10123 ASN1 structures. This currently produces rather ugly output and doesn't 10124 handle several customised structures at all. 10125 10126 *Steve Henson* 10127 10128 * Integrated support for PVK file format and some related formats such 10129 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 10130 these in the 'rsa' and 'dsa' utilities. 10131 10132 *Steve Henson* 10133 10134 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 10135 10136 *Steve Henson* 10137 10138 * Remove the ancient ASN1_METHOD code. This was only ever used in one 10139 place for the (very old) "NETSCAPE" format certificates which are now 10140 handled using new ASN1 code equivalents. 10141 10142 *Steve Henson* 10143 10144 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 10145 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 10146 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 10147 10148 *Nils Larsch* 10149 10150 * Modify CRL distribution points extension code to print out previously 10151 unsupported fields. Enhance extension setting code to allow setting of 10152 all fields. 10153 10154 *Steve Henson* 10155 10156 * Add print and set support for Issuing Distribution Point CRL extension. 10157 10158 *Steve Henson* 10159 10160 * Change 'Configure' script to enable Camellia by default. 10161 10162 *NTT* 10163 10164OpenSSL 0.9.x 10165------------- 10166 10167### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 10168 10169 * When rejecting SSL/TLS records due to an incorrect version number, never 10170 update s->server with a new major version number. As of 10171 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 10172 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 10173 the previous behavior could result in a read attempt at NULL when 10174 receiving specific incorrect SSL/TLS records once record payload 10175 protection is active. ([CVE-2010-0740]) 10176 10177 *Bodo Moeller, Adam Langley <agl@chromium.org>* 10178 10179 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 10180 could be crashed if the relevant tables were not present (e.g. chrooted). 10181 10182 *Tomas Hoger <thoger@redhat.com>* 10183 10184### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 10185 10186 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 10187 10188 *Martin Olsson, Neel Mehta* 10189 10190 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 10191 accommodate for stack sorting, always a write lock!). 10192 10193 *Bodo Moeller* 10194 10195 * On some versions of WIN32 Heap32Next is very slow. This can cause 10196 excessive delays in the RAND_poll(): over a minute. As a workaround 10197 include a time check in the inner Heap32Next loop too. 10198 10199 *Steve Henson* 10200 10201 * The code that handled flushing of data in SSL/TLS originally used the 10202 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 10203 the problem outlined in PR#1949. The fix suggested there however can 10204 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 10205 of Apache). So instead simplify the code to flush unconditionally. 10206 This should be fine since flushing with no data to flush is a no op. 10207 10208 *Steve Henson* 10209 10210 * Handle TLS versions 2.0 and later properly and correctly use the 10211 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 10212 off ancient servers have a habit of sticking around for a while... 10213 10214 *Steve Henson* 10215 10216 * Modify compression code so it frees up structures without using the 10217 ex_data callbacks. This works around a problem where some applications 10218 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 10219 restarting) then use compression (e.g. SSL with compression) later. 10220 This results in significant per-connection memory leaks and 10221 has caused some security issues including CVE-2008-1678 and 10222 CVE-2009-4355. 10223 10224 *Steve Henson* 10225 10226 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 10227 change when encrypting or decrypting. 10228 10229 *Bodo Moeller* 10230 10231 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 10232 connect and renegotiate with servers which do not support RI. 10233 Until RI is more widely deployed this option is enabled by default. 10234 10235 *Steve Henson* 10236 10237 * Add "missing" ssl ctrls to clear options and mode. 10238 10239 *Steve Henson* 10240 10241 * If client attempts to renegotiate and doesn't support RI respond with 10242 a no_renegotiation alert as required by RFC5746. Some renegotiating 10243 TLS clients will continue a connection gracefully when they receive 10244 the alert. Unfortunately OpenSSL mishandled this alert and would hang 10245 waiting for a server hello which it will never receive. Now we treat a 10246 received no_renegotiation alert as a fatal error. This is because 10247 applications requesting a renegotiation might well expect it to succeed 10248 and would have no code in place to handle the server denying it so the 10249 only safe thing to do is to terminate the connection. 10250 10251 *Steve Henson* 10252 10253 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 10254 peer supports secure renegotiation and 0 otherwise. Print out peer 10255 renegotiation support in s_client/s_server. 10256 10257 *Steve Henson* 10258 10259 * Replace the highly broken and deprecated SPKAC certification method with 10260 the updated NID creation version. This should correctly handle UTF8. 10261 10262 *Steve Henson* 10263 10264 * Implement RFC5746. Re-enable renegotiation but require the extension 10265 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 10266 turns out to be a bad idea. It has been replaced by 10267 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 10268 SSL_CTX_set_options(). This is really not recommended unless you 10269 know what you are doing. 10270 10271 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 10272 10273 * Fixes to stateless session resumption handling. Use initial_ctx when 10274 issuing and attempting to decrypt tickets in case it has changed during 10275 servername handling. Use a non-zero length session ID when attempting 10276 stateless session resumption: this makes it possible to determine if 10277 a resumption has occurred immediately after receiving server hello 10278 (several places in OpenSSL subtly assume this) instead of later in 10279 the handshake. 10280 10281 *Steve Henson* 10282 10283 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 10284 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 10285 fixes for a few places where the return code is not checked 10286 correctly. 10287 10288 *Julia Lawall <julia@diku.dk>* 10289 10290 * Add --strict-warnings option to Configure script to include devteam 10291 warnings in other configurations. 10292 10293 *Steve Henson* 10294 10295 * Add support for --libdir option and LIBDIR variable in makefiles. This 10296 makes it possible to install openssl libraries in locations which 10297 have names other than "lib", for example "/usr/lib64" which some 10298 systems need. 10299 10300 *Steve Henson, based on patch from Jeremy Utley* 10301 10302 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 10303 X690 8.9.12 and can produce some misleading textual output of OIDs. 10304 10305 *Steve Henson, reported by Dan Kaminsky* 10306 10307 * Delete MD2 from algorithm tables. This follows the recommendation in 10308 several standards that it is not used in new applications due to 10309 several cryptographic weaknesses. For binary compatibility reasons 10310 the MD2 API is still compiled in by default. 10311 10312 *Steve Henson* 10313 10314 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 10315 and restored. 10316 10317 *Steve Henson* 10318 10319 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 10320 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 10321 clash. 10322 10323 *Guenter <lists@gknw.net>* 10324 10325 * Fix the server certificate chain building code to use X509_verify_cert(), 10326 it used to have an ad-hoc builder which was unable to cope with anything 10327 other than a simple chain. 10328 10329 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 10330 10331 * Don't check self signed certificate signatures in X509_verify_cert() 10332 by default (a flag can override this): it just wastes time without 10333 adding any security. As a useful side effect self signed root CAs 10334 with non-FIPS digests are now usable in FIPS mode. 10335 10336 *Steve Henson* 10337 10338 * In dtls1_process_out_of_seq_message() the check if the current message 10339 is already buffered was missing. For every new message was memory 10340 allocated, allowing an attacker to perform an denial of service attack 10341 with sending out of seq handshake messages until there is no memory 10342 left. Additionally every future message was buffered, even if the 10343 sequence number made no sense and would be part of another handshake. 10344 So only messages with sequence numbers less than 10 in advance will be 10345 buffered. ([CVE-2009-1378]) 10346 10347 *Robin Seggelmann, discovered by Daniel Mentz* 10348 10349 * Records are buffered if they arrive with a future epoch to be 10350 processed after finishing the corresponding handshake. There is 10351 currently no limitation to this buffer allowing an attacker to perform 10352 a DOS attack with sending records with future epochs until there is no 10353 memory left. This patch adds the pqueue_size() function to determine 10354 the size of a buffer and limits the record buffer to 100 entries. 10355 ([CVE-2009-1377]) 10356 10357 *Robin Seggelmann, discovered by Daniel Mentz* 10358 10359 * Keep a copy of frag->msg_header.frag_len so it can be used after the 10360 parent structure is freed. ([CVE-2009-1379]) 10361 10362 *Daniel Mentz* 10363 10364 * Handle non-blocking I/O properly in SSL_shutdown() call. 10365 10366 *Darryl Miles <darryl-mailinglists@netbauds.net>* 10367 10368 * Add `2.5.4.*` OIDs 10369 10370 *Ilya O. <vrghost@gmail.com>* 10371 10372### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 10373 10374 * Disable renegotiation completely - this fixes a severe security 10375 problem ([CVE-2009-3555]) at the cost of breaking all 10376 renegotiation. Renegotiation can be re-enabled by setting 10377 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10378 run-time. This is really not recommended unless you know what 10379 you're doing. 10380 10381 *Ben Laurie* 10382 10383### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10384 10385 * Don't set val to NULL when freeing up structures, it is freed up by 10386 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10387 zeroing past the valid field. ([CVE-2009-0789]) 10388 10389 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10390 10391 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10392 checked correctly. This would allow some invalid signed attributes to 10393 appear to verify correctly. ([CVE-2009-0591]) 10394 10395 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10396 10397 * Reject UniversalString and BMPString types with invalid lengths. This 10398 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10399 a legal length. ([CVE-2009-0590]) 10400 10401 *Steve Henson* 10402 10403 * Set S/MIME signing as the default purpose rather than setting it 10404 unconditionally. This allows applications to override it at the store 10405 level. 10406 10407 *Steve Henson* 10408 10409 * Permit restricted recursion of ASN1 strings. This is needed in practice 10410 to handle some structures. 10411 10412 *Steve Henson* 10413 10414 * Improve efficiency of mem_gets: don't search whole buffer each time 10415 for a '\n' 10416 10417 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10418 10419 * New -hex option for openssl rand. 10420 10421 *Matthieu Herrb* 10422 10423 * Print out UTF8String and NumericString when parsing ASN1. 10424 10425 *Steve Henson* 10426 10427 * Support NumericString type for name components. 10428 10429 *Steve Henson* 10430 10431 * Allow CC in the environment to override the automatically chosen 10432 compiler. Note that nothing is done to ensure flags work with the 10433 chosen compiler. 10434 10435 *Ben Laurie* 10436 10437### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10438 10439 * Properly check EVP_VerifyFinal() and similar return values 10440 ([CVE-2008-5077]). 10441 10442 *Ben Laurie, Bodo Moeller, Google Security Team* 10443 10444 * Enable TLS extensions by default. 10445 10446 *Ben Laurie* 10447 10448 * Allow the CHIL engine to be loaded, whether the application is 10449 multithreaded or not. (This does not release the developer from the 10450 obligation to set up the dynamic locking callbacks.) 10451 10452 *Sander Temme <sander@temme.net>* 10453 10454 * Use correct exit code if there is an error in dgst command. 10455 10456 *Steve Henson; problem pointed out by Roland Dirlewanger* 10457 10458 * Tweak Configure so that you need to say "experimental-jpake" to enable 10459 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10460 10461 *Bodo Moeller* 10462 10463 * Add experimental JPAKE support, including demo authentication in 10464 s_client and s_server. 10465 10466 *Ben Laurie* 10467 10468 * Set the comparison function in v3_addr_canonize(). 10469 10470 *Rob Austein <sra@hactrn.net>* 10471 10472 * Add support for XMPP STARTTLS in s_client. 10473 10474 *Philip Paeps <philip@freebsd.org>* 10475 10476 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10477 to ensure that even with this option, only ciphersuites in the 10478 server's preference list will be accepted. (Note that the option 10479 applies only when resuming a session, so the earlier behavior was 10480 just about the algorithm choice for symmetric cryptography.) 10481 10482 *Bodo Moeller* 10483 10484### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10485 10486 * Fix NULL pointer dereference if a DTLS server received 10487 ChangeCipherSpec as first record ([CVE-2009-1386]). 10488 10489 *PR #1679* 10490 10491 * Fix a state transition in s3_srvr.c and d1_srvr.c 10492 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10493 10494 *Nagendra Modadugu* 10495 10496 * The fix in 0.9.8c that supposedly got rid of unsafe 10497 double-checked locking was incomplete for RSA blinding, 10498 addressing just one layer of what turns out to have been 10499 doubly unsafe triple-checked locking. 10500 10501 So now fix this for real by retiring the MONT_HELPER macro 10502 in crypto/rsa/rsa_eay.c. 10503 10504 *Bodo Moeller; problem pointed out by Marius Schilder* 10505 10506 * Various precautionary measures: 10507 10508 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10509 10510 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10511 (NB: This would require knowledge of the secret session ticket key 10512 to exploit, in which case you'd be SOL either way.) 10513 10514 - Change bn_nist.c so that it will properly handle input BIGNUMs 10515 outside the expected range. 10516 10517 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10518 builds. 10519 10520 *Neel Mehta, Bodo Moeller* 10521 10522 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10523 the load fails. Useful for distros. 10524 10525 *Ben Laurie and the FreeBSD team* 10526 10527 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10528 10529 *Steve Henson* 10530 10531 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10532 10533 *Huang Ying* 10534 10535 * Expand ENGINE to support engine supplied SSL client certificate functions. 10536 10537 This work was sponsored by Logica. 10538 10539 *Steve Henson* 10540 10541 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10542 keystores. Support for SSL/TLS client authentication too. 10543 Not compiled unless enable-capieng specified to Configure. 10544 10545 This work was sponsored by Logica. 10546 10547 *Steve Henson* 10548 10549 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10550 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10551 attribute creation routines such as certificate requests and PKCS#12 10552 files. 10553 10554 *Steve Henson* 10555 10556### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10557 10558 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10559 handshake which could lead to a client crash as found using the 10560 Codenomicon TLS test suite ([CVE-2008-1672]) 10561 10562 *Steve Henson, Mark Cox* 10563 10564 * Fix double free in TLS server name extensions which could lead to 10565 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10566 10567 *Joe Orton* 10568 10569 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10570 10571 Clear the error queue to ensure that error entries left from 10572 older function calls do not interfere with the correct operation. 10573 10574 *Lutz Jaenicke, Erik de Castro Lopo* 10575 10576 * Remove root CA certificates of commercial CAs: 10577 10578 The OpenSSL project does not recommend any specific CA and does not 10579 have any policy with respect to including or excluding any CA. 10580 Therefore it does not make any sense to ship an arbitrary selection 10581 of root CA certificates with the OpenSSL software. 10582 10583 *Lutz Jaenicke* 10584 10585 * RSA OAEP patches to fix two separate invalid memory reads. 10586 The first one involves inputs when 'lzero' is greater than 10587 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10588 before the beginning of from). The second one involves inputs where 10589 the 'db' section contains nothing but zeroes (there is a one-byte 10590 invalid read after the end of 'db'). 10591 10592 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10593 10594 * Partial backport from 0.9.9-dev: 10595 10596 Introduce bn_mul_mont (dedicated Montgomery multiplication 10597 procedure) as a candidate for BIGNUM assembler implementation. 10598 While 0.9.9-dev uses assembler for various architectures, only 10599 x86_64 is available by default here in the 0.9.8 branch, and 10600 32-bit x86 is available through a compile-time setting. 10601 10602 To try the 32-bit x86 assembler implementation, use Configure 10603 option "enable-montasm" (which exists only for this backport). 10604 10605 As "enable-montasm" for 32-bit x86 disclaims code stability 10606 anyway, in this constellation we activate additional code 10607 backported from 0.9.9-dev for further performance improvements, 10608 namely BN_from_montgomery_word. (To enable this otherwise, 10609 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10610 10611 *Andy Polyakov (backport partially by Bodo Moeller)* 10612 10613 * Add TLS session ticket callback. This allows an application to set 10614 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10615 values. This is useful for key rollover for example where several key 10616 sets may exist with different names. 10617 10618 *Steve Henson* 10619 10620 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10621 This was broken until now in 0.9.8 releases, such that the only way 10622 a registered ENGINE could be used (assuming it initialises 10623 successfully on the host) was to explicitly set it as the default 10624 for the relevant algorithms. This is in contradiction with 0.9.7 10625 behaviour and the documentation. With this fix, when an ENGINE is 10626 registered into a given algorithm's table of implementations, the 10627 'uptodate' flag is reset so that auto-discovery will be used next 10628 time a new context for that algorithm attempts to select an 10629 implementation. 10630 10631 *Ian Lister (tweaked by Geoff Thorpe)* 10632 10633 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10634 implementation in the following ways: 10635 10636 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10637 hard coded. 10638 10639 Lack of BER streaming support means one pass streaming processing is 10640 only supported if data is detached: setting the streaming flag is 10641 ignored for embedded content. 10642 10643 CMS support is disabled by default and must be explicitly enabled 10644 with the enable-cms configuration option. 10645 10646 *Steve Henson* 10647 10648 * Update the GMP engine glue to do direct copies between BIGNUM and 10649 mpz_t when openssl and GMP use the same limb size. Otherwise the 10650 existing "conversion via a text string export" trick is still used. 10651 10652 *Paul Sheer <paulsheer@gmail.com>* 10653 10654 * Zlib compression BIO. This is a filter BIO which compressed and 10655 uncompresses any data passed through it. 10656 10657 *Steve Henson* 10658 10659 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10660 RFC3394 compatible AES key wrapping. 10661 10662 *Steve Henson* 10663 10664 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10665 sets string data without copying. X509_ALGOR_set0() and 10666 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10667 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10668 from an X509_ATTRIBUTE structure optionally checking it occurs only 10669 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10670 data. 10671 10672 *Steve Henson* 10673 10674 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10675 to get the expected BN_FLG_CONSTTIME behavior. 10676 10677 *Bodo Moeller (Google)* 10678 10679 * Netware support: 10680 10681 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10682 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10683 - added some more tests to do_tests.pl 10684 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10685 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10686 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10687 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10688 - various changes to netware.pl to enable gcc-cross builds on Win32 10689 platform 10690 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10691 - various changes to fix missing prototype warnings 10692 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10693 - added AES, WHIRLPOOL and CPUID assembler code to build files 10694 - added missing AES assembler make rules to mk1mf.pl 10695 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10696 10697 *Guenter Knauf <eflash@gmx.net>* 10698 10699 * Implement certificate status request TLS extension defined in RFC3546. 10700 A client can set the appropriate parameters and receive the encoded 10701 OCSP response via a callback. A server can query the supplied parameters 10702 and set the encoded OCSP response in the callback. Add simplified examples 10703 to s_client and s_server. 10704 10705 *Steve Henson* 10706 10707### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10708 10709 * Fix various bugs: 10710 + Binary incompatibility of ssl_ctx_st structure 10711 + DTLS interoperation with non-compliant servers 10712 + Don't call get_session_cb() without proposed session 10713 + Fix ia64 assembler code 10714 10715 *Andy Polyakov, Steve Henson* 10716 10717### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10718 10719 * DTLS Handshake overhaul. There were longstanding issues with 10720 OpenSSL DTLS implementation, which were making it impossible for 10721 RFC 4347 compliant client to communicate with OpenSSL server. 10722 Unfortunately just fixing these incompatibilities would "cut off" 10723 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10724 server keeps tolerating non RFC compliant syntax. The opposite is 10725 not true, 0.9.8f client can not communicate with earlier server. 10726 This update even addresses CVE-2007-4995. 10727 10728 *Andy Polyakov* 10729 10730 * Changes to avoid need for function casts in OpenSSL: some compilers 10731 (gcc 4.2 and later) reject their use. 10732 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10733 Steve Henson* 10734 10735 * Add RFC4507 support to OpenSSL. This includes the corrections in 10736 RFC4507bis. The encrypted ticket format is an encrypted encoded 10737 SSL_SESSION structure, that way new session features are automatically 10738 supported. 10739 10740 If a client application caches session in an SSL_SESSION structure 10741 support is transparent because tickets are now stored in the encoded 10742 SSL_SESSION. 10743 10744 The SSL_CTX structure automatically generates keys for ticket 10745 protection in servers so again support should be possible 10746 with no application modification. 10747 10748 If a client or server wishes to disable RFC4507 support then the option 10749 SSL_OP_NO_TICKET can be set. 10750 10751 Add a TLS extension debugging callback to allow the contents of any client 10752 or server extensions to be examined. 10753 10754 This work was sponsored by Google. 10755 10756 *Steve Henson* 10757 10758 * Add initial support for TLS extensions, specifically for the server_name 10759 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10760 have new members for a host name. The SSL data structure has an 10761 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10762 stored in that context to allow for session resumption, even after the 10763 SSL has been switched to a new SSL_CTX in reaction to a client's 10764 server_name extension. 10765 10766 New functions (subject to change): 10767 10768 SSL_get_servername() 10769 SSL_get_servername_type() 10770 SSL_set_SSL_CTX() 10771 10772 New CTRL codes and macros (subject to change): 10773 10774 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10775 - SSL_CTX_set_tlsext_servername_callback() 10776 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10777 - SSL_CTX_set_tlsext_servername_arg() 10778 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10779 10780 openssl s_client has a new '-servername ...' option. 10781 10782 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10783 '-key2 ...', '-servername_fatal' (subject to change). This allows 10784 testing the HostName extension for a specific single host name ('-cert' 10785 and '-key' remain fallbacks for handshakes without HostName 10786 negotiation). If the unrecognized_name alert has to be sent, this by 10787 default is a warning; it becomes fatal with the '-servername_fatal' 10788 option. 10789 10790 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10791 10792 * Add AES and SSE2 assembly language support to VC++ build. 10793 10794 *Steve Henson* 10795 10796 * Mitigate attack on final subtraction in Montgomery reduction. 10797 10798 *Andy Polyakov* 10799 10800 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10801 (which previously caused an internal error). 10802 10803 *Bodo Moeller* 10804 10805 * Squeeze another 10% out of IGE mode when in != out. 10806 10807 *Ben Laurie* 10808 10809 * AES IGE mode speedup. 10810 10811 *Dean Gaudet (Google)* 10812 10813 * Add the Korean symmetric 128-bit cipher SEED (see 10814 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10815 add SEED ciphersuites from RFC 4162: 10816 10817 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10818 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10819 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10820 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10821 10822 To minimize changes between patchlevels in the OpenSSL 0.9.8 10823 series, SEED remains excluded from compilation unless OpenSSL 10824 is configured with 'enable-seed'. 10825 10826 *KISA, Bodo Moeller* 10827 10828 * Mitigate branch prediction attacks, which can be practical if a 10829 single processor is shared, allowing a spy process to extract 10830 information. For detailed background information, see 10831 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10832 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10833 and Necessary Software Countermeasures"). The core of the change 10834 are new versions BN_div_no_branch() and 10835 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10836 respectively, which are slower, but avoid the security-relevant 10837 conditional branches. These are automatically called by BN_div() 10838 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10839 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10840 remove a conditional branch. 10841 10842 BN_FLG_CONSTTIME is the new name for the previous 10843 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10844 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10845 in the exponent causes BN_mod_exp_mont() to use the alternative 10846 implementation in BN_mod_exp_mont_consttime().) The old name 10847 remains as a deprecated alias. 10848 10849 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10850 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10851 constant-time implementations for more than just exponentiation. 10852 Here too the old name is kept as a deprecated alias. 10853 10854 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10855 the BN_BLINDING structure gets an independent copy of the 10856 modulus. This means that the previous `BIGNUM *m` argument to 10857 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10858 essentially becomes `const BIGNUM *m`, although we can't actually 10859 change this in the header file before 0.9.9. It allows 10860 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10861 enable BN_FLG_CONSTTIME. 10862 10863 *Matthew D Wood (Intel Corp)* 10864 10865 * In the SSL/TLS server implementation, be strict about session ID 10866 context matching (which matters if an application uses a single 10867 external cache for different purposes). Previously, 10868 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10869 set. This did ensure strict client verification, but meant that, 10870 with applications using a single external cache for quite 10871 different requirements, clients could circumvent ciphersuite 10872 restrictions for a given session ID context by starting a session 10873 in a different context. 10874 10875 *Bodo Moeller* 10876 10877 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10878 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10879 authentication-only ciphersuites. 10880 10881 *Bodo Moeller* 10882 10883 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10884 not complete and could lead to a possible single byte overflow 10885 ([CVE-2007-5135]) [Ben Laurie] 10886 10887### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10888 10889 * Since AES128 and AES256 (and similarly Camellia128 and 10890 Camellia256) share a single mask bit in the logic of 10891 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10892 kludge to work properly if AES128 is available and AES256 isn't 10893 (or if Camellia128 is available and Camellia256 isn't). 10894 10895 *Victor Duchovni* 10896 10897 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10898 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10899 When a point or a seed is encoded in a BIT STRING, we need to 10900 prevent the removal of trailing zero bits to get the proper DER 10901 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10902 of a NamedBitList, for which trailing 0 bits need to be removed.) 10903 10904 *Bodo Moeller* 10905 10906 * Have SSL/TLS server implementation tolerate "mismatched" record 10907 protocol version while receiving ClientHello even if the 10908 ClientHello is fragmented. (The server can't insist on the 10909 particular protocol version it has chosen before the ServerHello 10910 message has informed the client about his choice.) 10911 10912 *Bodo Moeller* 10913 10914 * Add RFC 3779 support. 10915 10916 *Rob Austein for ARIN, Ben Laurie* 10917 10918 * Load error codes if they are not already present instead of using a 10919 static variable. This allows them to be cleanly unloaded and reloaded. 10920 Improve header file function name parsing. 10921 10922 *Steve Henson* 10923 10924 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10925 or CAPABILITY handshake as required by RFCs. 10926 10927 *Goetz Babin-Ebell* 10928 10929### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10930 10931 * Introduce limits to prevent malicious keys being able to 10932 cause a denial of service. ([CVE-2006-2940]) 10933 10934 *Steve Henson, Bodo Moeller* 10935 10936 * Fix ASN.1 parsing of certain invalid structures that can result 10937 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10938 10939 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10940 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10941 10942 * Fix SSL client code which could crash if connecting to a 10943 malicious SSLv2 server. ([CVE-2006-4343]) 10944 10945 *Tavis Ormandy and Will Drewry, Google Security Team* 10946 10947 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10948 match only those. Before that, "AES256-SHA" would be interpreted 10949 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10950 the same strength classification in 0.9.7h) as we currently only 10951 have a single AES bit in the ciphersuite description bitmap. 10952 That change, however, also applied to ciphersuite strings such as 10953 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10954 namely, SSL 2.0 ciphersuites in addition to the more common ones 10955 from SSL 3.0/TLS 1.0. 10956 10957 So we change the selection algorithm again: Naming an explicit 10958 ciphersuite selects this one ciphersuite, and any other similar 10959 ciphersuite (same bitmap) from *other* protocol versions. 10960 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10961 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10962 10963 Since SSL 2.0 does not have any ciphersuites for which the 10964 128/256 bit distinction would be relevant, this works for now. 10965 The proper fix will be to use different bits for AES128 and 10966 AES256, which would have avoided the problems from the beginning; 10967 however, bits are scarce, so we can only do this in a new release 10968 (not just a patchlevel) when we can change the SSL_CIPHER 10969 definition to split the single 'unsigned long mask' bitmap into 10970 multiple values to extend the available space. 10971 10972 *Bodo Moeller* 10973 10974### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10975 10976 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10977 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10978 10979 * Add AES IGE and biIGE modes. 10980 10981 *Ben Laurie* 10982 10983 * Change the Unix randomness entropy gathering to use poll() when 10984 possible instead of select(), since the latter has some 10985 undesirable limitations. 10986 10987 *Darryl Miles via Richard Levitte and Bodo Moeller* 10988 10989 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10990 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10991 cannot be implicitly activated as part of, e.g., the "AES" alias. 10992 However, please upgrade to OpenSSL 0.9.9[-dev] for 10993 non-experimental use of the ECC ciphersuites to get TLS extension 10994 support, which is required for curve and point format negotiation 10995 to avoid potential handshake problems. 10996 10997 *Bodo Moeller* 10998 10999 * Disable rogue ciphersuites: 11000 11001 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11002 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11003 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11004 11005 The latter two were purportedly from 11006 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11007 appear there. 11008 11009 Also deactivate the remaining ciphersuites from 11010 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11011 unofficial, and the ID has long expired. 11012 11013 *Bodo Moeller* 11014 11015 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11016 dual-core machines) and other potential thread-safety issues. 11017 11018 *Bodo Moeller* 11019 11020 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 11021 versions), which is now available for royalty-free use 11022 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 11023 Also, add Camellia TLS ciphersuites from RFC 4132. 11024 11025 To minimize changes between patchlevels in the OpenSSL 0.9.8 11026 series, Camellia remains excluded from compilation unless OpenSSL 11027 is configured with 'enable-camellia'. 11028 11029 *NTT* 11030 11031 * Disable the padding bug check when compression is in use. The padding 11032 bug check assumes the first packet is of even length, this is not 11033 necessarily true if compression is enabled and can result in false 11034 positives causing handshake failure. The actual bug test is ancient 11035 code so it is hoped that implementations will either have fixed it by 11036 now or any which still have the bug do not support compression. 11037 11038 *Steve Henson* 11039 11040### Changes between 0.9.8a and 0.9.8b [04 May 2006] 11041 11042 * When applying a cipher rule check to see if string match is an explicit 11043 cipher suite and only match that one cipher suite if it is. 11044 11045 *Steve Henson* 11046 11047 * Link in manifests for VC++ if needed. 11048 11049 *Austin Ziegler <halostatue@gmail.com>* 11050 11051 * Update support for ECC-based TLS ciphersuites according to 11052 draft-ietf-tls-ecc-12.txt with proposed changes (but without 11053 TLS extensions, which are supported starting with the 0.9.9 11054 branch, not in the OpenSSL 0.9.8 branch). 11055 11056 *Douglas Stebila* 11057 11058 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 11059 opaque EVP_CIPHER_CTX handling. 11060 11061 *Steve Henson* 11062 11063 * Fixes and enhancements to zlib compression code. We now only use 11064 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 11065 to conform with the standards mentioned here: 11066 <http://www.zlib.net/DLL_FAQ.txt> 11067 Static zlib linking now works on Windows and the new --with-zlib-include 11068 --with-zlib-lib options to Configure can be used to supply the location 11069 of the headers and library. Gracefully handle case where zlib library 11070 can't be loaded. 11071 11072 *Steve Henson* 11073 11074 * Several fixes and enhancements to the OID generation code. The old code 11075 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 11076 handle numbers larger than ULONG_MAX, truncated printing and had a 11077 non standard OBJ_obj2txt() behaviour. 11078 11079 *Steve Henson* 11080 11081 * Add support for building of engines under engine/ as shared libraries 11082 under VC++ build system. 11083 11084 *Steve Henson* 11085 11086 * Corrected the numerous bugs in the Win32 path splitter in DSO. 11087 Hopefully, we will not see any false combination of paths any more. 11088 11089 *Richard Levitte* 11090 11091### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 11092 11093 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11094 (part of SSL_OP_ALL). This option used to disable the 11095 countermeasure against man-in-the-middle protocol-version 11096 rollback in the SSL 2.0 server implementation, which is a bad 11097 idea. ([CVE-2005-2969]) 11098 11099 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11100 for Information Security, National Institute of Advanced Industrial 11101 Science and Technology [AIST], Japan)* 11102 11103 * Add two function to clear and return the verify parameter flags. 11104 11105 *Steve Henson* 11106 11107 * Keep cipherlists sorted in the source instead of sorting them at 11108 runtime, thus removing the need for a lock. 11109 11110 *Nils Larsch* 11111 11112 * Avoid some small subgroup attacks in Diffie-Hellman. 11113 11114 *Nick Mathewson and Ben Laurie* 11115 11116 * Add functions for well-known primes. 11117 11118 *Nick Mathewson* 11119 11120 * Extended Windows CE support. 11121 11122 *Satoshi Nakamura and Andy Polyakov* 11123 11124 * Initialize SSL_METHOD structures at compile time instead of during 11125 runtime, thus removing the need for a lock. 11126 11127 *Steve Henson* 11128 11129 * Make PKCS7_decrypt() work even if no certificate is supplied by 11130 attempting to decrypt each encrypted key in turn. Add support to 11131 smime utility. 11132 11133 *Steve Henson* 11134 11135### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 11136 11137[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 11138OpenSSL 0.9.8.] 11139 11140 * Add libcrypto.pc and libssl.pc for those who feel they need them. 11141 11142 *Richard Levitte* 11143 11144 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 11145 key into the same file any more. 11146 11147 *Richard Levitte* 11148 11149 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 11150 11151 *Andy Polyakov* 11152 11153 * Add -utf8 command line and config file option to 'ca'. 11154 11155 *Stefan <stf@udoma.org* 11156 11157 * Removed the macro des_crypt(), as it seems to conflict with some 11158 libraries. Use DES_crypt(). 11159 11160 *Richard Levitte* 11161 11162 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 11163 involves renaming the source and generated shared-libs for 11164 both. The engines will accept the corrected or legacy ids 11165 ('ncipher' and '4758_cca' respectively) when binding. NB, 11166 this only applies when building 'shared'. 11167 11168 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 11169 11170 * Add attribute functions to EVP_PKEY structure. Modify 11171 PKCS12_create() to recognize a CSP name attribute and 11172 use it. Make -CSP option work again in pkcs12 utility. 11173 11174 *Steve Henson* 11175 11176 * Add new functionality to the bn blinding code: 11177 - automatic re-creation of the BN_BLINDING parameters after 11178 a fixed number of uses (currently 32) 11179 - add new function for parameter creation 11180 - introduce flags to control the update behaviour of the 11181 BN_BLINDING parameters 11182 - hide BN_BLINDING structure 11183 Add a second BN_BLINDING slot to the RSA structure to improve 11184 performance when a single RSA object is shared among several 11185 threads. 11186 11187 *Nils Larsch* 11188 11189 * Add support for DTLS. 11190 11191 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 11192 11193 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 11194 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 11195 11196 *Walter Goulet* 11197 11198 * Remove buggy and incomplete DH cert support from 11199 ssl/ssl_rsa.c and ssl/s3_both.c 11200 11201 *Nils Larsch* 11202 11203 * Use SHA-1 instead of MD5 as the default digest algorithm for 11204 the `apps/openssl` commands. 11205 11206 *Nils Larsch* 11207 11208 * Compile clean with "-Wall -Wmissing-prototypes 11209 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 11210 DEBUG_SAFESTACK must also be set. 11211 11212 *Ben Laurie* 11213 11214 * Change ./Configure so that certain algorithms can be disabled by default. 11215 The new counterpiece to "no-xxx" is "enable-xxx". 11216 11217 The patented RC5 and MDC2 algorithms will now be disabled unless 11218 "enable-rc5" and "enable-mdc2", respectively, are specified. 11219 11220 (IDEA remains enabled despite being patented. This is because IDEA 11221 is frequently required for interoperability, and there is no license 11222 fee for non-commercial use. As before, "no-idea" can be used to 11223 avoid this algorithm.) 11224 11225 *Bodo Moeller* 11226 11227 * Add processing of proxy certificates (see RFC 3820). This work was 11228 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 11229 EGEE (Enabling Grids for E-science in Europe). 11230 11231 *Richard Levitte* 11232 11233 * RC4 performance overhaul on modern architectures/implementations, such 11234 as Intel P4, IA-64 and AMD64. 11235 11236 *Andy Polyakov* 11237 11238 * New utility extract-section.pl. This can be used specify an alternative 11239 section number in a pod file instead of having to treat each file as 11240 a separate case in Makefile. This can be done by adding two lines to the 11241 pod file: 11242 11243 =for comment openssl_section:XXX 11244 11245 The blank line is mandatory. 11246 11247 *Steve Henson* 11248 11249 * New arguments -certform, -keyform and -pass for s_client and s_server 11250 to allow alternative format key and certificate files and passphrase 11251 sources. 11252 11253 *Steve Henson* 11254 11255 * New structure X509_VERIFY_PARAM which combines current verify parameters, 11256 update associated structures and add various utility functions. 11257 11258 Add new policy related verify parameters, include policy checking in 11259 standard verify code. Enhance 'smime' application with extra parameters 11260 to support policy checking and print out. 11261 11262 *Steve Henson* 11263 11264 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 11265 Nehemiah processors. These extensions support AES encryption in hardware 11266 as well as RNG (though RNG support is currently disabled). 11267 11268 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 11269 11270 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 11271 11272 *Geoff Thorpe* 11273 11274 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 11275 11276 *Andy Polyakov and a number of other people* 11277 11278 * Improved PowerPC platform support. Most notably BIGNUM assembler 11279 implementation contributed by IBM. 11280 11281 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 11282 11283 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 11284 exponent rather than 'unsigned long'. There is a corresponding change to 11285 the new 'rsa_keygen' element of the RSA_METHOD structure. 11286 11287 *Jelte Jansen, Geoff Thorpe* 11288 11289 * Functionality for creating the initial serial number file is now 11290 moved from CA.pl to the 'ca' utility with a new option -create_serial. 11291 11292 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 11293 number file to 1, which is bound to cause problems. To avoid 11294 the problems while respecting compatibility between different 0.9.7 11295 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 11296 CA.pl for serial number initialization. With the new release 0.9.8, 11297 we can fix the problem directly in the 'ca' utility.) 11298 11299 *Steve Henson* 11300 11301 * Reduced header interdependencies by declaring more opaque objects in 11302 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 11303 give fewer recursive includes, which could break lazy source code - so 11304 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 11305 developers should define this symbol when building and using openssl to 11306 ensure they track the recommended behaviour, interfaces, [etc], but 11307 backwards-compatible behaviour prevails when this isn't defined. 11308 11309 *Geoff Thorpe* 11310 11311 * New function X509_POLICY_NODE_print() which prints out policy nodes. 11312 11313 *Steve Henson* 11314 11315 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 11316 This will generate a random key of the appropriate length based on the 11317 cipher context. The EVP_CIPHER can provide its own random key generation 11318 routine to support keys of a specific form. This is used in the des and 11319 3des routines to generate a key of the correct parity. Update S/MIME 11320 code to use new functions and hence generate correct parity DES keys. 11321 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 11322 valid (weak or incorrect parity). 11323 11324 *Steve Henson* 11325 11326 * Add a local set of CRLs that can be used by X509_verify_cert() as well 11327 as looking them up. This is useful when the verified structure may contain 11328 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 11329 present unless the new PKCS7_NO_CRL flag is asserted. 11330 11331 *Steve Henson* 11332 11333 * Extend ASN1 oid configuration module. It now additionally accepts the 11334 syntax: 11335 11336 shortName = some long name, 1.2.3.4 11337 11338 *Steve Henson* 11339 11340 * Reimplemented the BN_CTX implementation. There is now no more static 11341 limitation on the number of variables it can handle nor the depth of the 11342 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 11343 information can now expand as required, and rather than having a single 11344 static array of bignums, BN_CTX now uses a linked-list of such arrays 11345 allowing it to expand on demand whilst maintaining the usefulness of 11346 BN_CTX's "bundling". 11347 11348 *Geoff Thorpe* 11349 11350 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 11351 to allow all RSA operations to function using a single BN_CTX. 11352 11353 *Geoff Thorpe* 11354 11355 * Preliminary support for certificate policy evaluation and checking. This 11356 is initially intended to pass the tests outlined in "Conformance Testing 11357 of Relying Party Client Certificate Path Processing Logic" v1.07. 11358 11359 *Steve Henson* 11360 11361 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 11362 remained unused and not that useful. A variety of other little bignum 11363 tweaks and fixes have also been made continuing on from the audit (see 11364 below). 11365 11366 *Geoff Thorpe* 11367 11368 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 11369 associated ASN1, EVP and SSL functions and old ASN1 macros. 11370 11371 *Richard Levitte* 11372 11373 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 11374 and this should never fail. So the return value from the use of 11375 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11376 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11377 11378 *Geoff Thorpe* 11379 11380 * BN_CTX_get() should return zero-valued bignums, providing the same 11381 initialised value as BN_new(). 11382 11383 *Geoff Thorpe, suggested by Ulf Möller* 11384 11385 * Support for inhibitAnyPolicy certificate extension. 11386 11387 *Steve Henson* 11388 11389 * An audit of the BIGNUM code is underway, for which debugging code is 11390 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11391 is considered valid when processing BIGNUMs, and causes execution to 11392 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11393 further steps are taken to deliberately pollute unused data in BIGNUM 11394 structures to try and expose faulty code further on. For now, openssl will 11395 (in its default mode of operation) continue to tolerate the inconsistent 11396 forms that it has tolerated in the past, but authors and packagers should 11397 consider trying openssl and their own applications when compiled with 11398 these debugging symbols defined. It will help highlight potential bugs in 11399 their own code, and will improve the test coverage for OpenSSL itself. At 11400 some point, these tighter rules will become openssl's default to improve 11401 maintainability, though the assert()s and other overheads will remain only 11402 in debugging configurations. See bn.h for more details. 11403 11404 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11405 11406 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11407 that can only be obtained through BN_CTX_new() (which implicitly 11408 initialises it). The presence of this function only made it possible 11409 to overwrite an existing structure (and cause memory leaks). 11410 11411 *Geoff Thorpe* 11412 11413 * Because of the callback-based approach for implementing LHASH as a 11414 template type, lh_insert() adds opaque objects to hash-tables and 11415 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11416 to clean up those corresponding objects before destroying the hash table 11417 (and losing the object pointers). So some over-zealous constifications in 11418 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11419 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11420 prototyped to have "const" restrictions on the object pointers they are 11421 given (and so aren't required to cast them away any more). 11422 11423 *Geoff Thorpe* 11424 11425 * The tmdiff.h API was so ugly and minimal that our own timing utility 11426 (speed) prefers to use its own implementation. The two implementations 11427 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11428 its object type properly exposed (MS_TM) instead of casting to/from 11429 `char *`. This may still change yet if someone realises MS_TM and 11430 `ms_time_***` 11431 aren't necessarily the greatest nomenclatures - but this is what was used 11432 internally to the implementation so I've used that for now. 11433 11434 *Geoff Thorpe* 11435 11436 * Ensure that deprecated functions do not get compiled when 11437 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11438 the self-tests were still using deprecated key-generation functions so 11439 these have been updated also. 11440 11441 *Geoff Thorpe* 11442 11443 * Reorganise PKCS#7 code to separate the digest location functionality 11444 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11445 New function PKCS7_set_digest() to set the digest type for PKCS#7 11446 digestedData type. Add additional code to correctly generate the 11447 digestedData type and add support for this type in PKCS7 initialization 11448 functions. 11449 11450 *Steve Henson* 11451 11452 * New function PKCS7_set0_type_other() this initializes a PKCS7 11453 structure of type "other". 11454 11455 *Steve Henson* 11456 11457 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11458 sure the loop does correctly stop and breaking ("division by zero") 11459 modulus operations are not performed. The (pre-generated) prime 11460 table crypto/bn/bn_prime.h was already correct, but it could not be 11461 re-generated on some platforms because of the "division by zero" 11462 situation in the script. 11463 11464 *Ralf S. Engelschall* 11465 11466 * Update support for ECC-based TLS ciphersuites according to 11467 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11468 SHA-1 now is only used for "small" curves (where the 11469 representation of a field element takes up to 24 bytes); for 11470 larger curves, the field element resulting from ECDH is directly 11471 used as premaster secret. 11472 11473 *Douglas Stebila (Sun Microsystems Laboratories)* 11474 11475 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11476 curve secp160r1 to the tests. 11477 11478 *Douglas Stebila (Sun Microsystems Laboratories)* 11479 11480 * Add the possibility to load symbols globally with DSO. 11481 11482 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11483 11484 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11485 control of the error stack. 11486 11487 *Richard Levitte* 11488 11489 * Add support for STORE in ENGINE. 11490 11491 *Richard Levitte* 11492 11493 * Add the STORE type. The intention is to provide a common interface 11494 to certificate and key stores, be they simple file-based stores, or 11495 HSM-type store, or LDAP stores, or... 11496 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11497 11498 *Richard Levitte* 11499 11500 * Add a generic structure called OPENSSL_ITEM. This can be used to 11501 pass a list of arguments to any function as well as provide a way 11502 for a function to pass data back to the caller. 11503 11504 *Richard Levitte* 11505 11506 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11507 works like BUF_strdup() but can be used to duplicate a portion of 11508 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11509 a memory area. 11510 11511 *Richard Levitte* 11512 11513 * Add the function sk_find_ex() which works like sk_find(), but will 11514 return an index to an element even if an exact match couldn't be 11515 found. The index is guaranteed to point at the element where the 11516 searched-for key would be inserted to preserve sorting order. 11517 11518 *Richard Levitte* 11519 11520 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11521 takes an extra flags argument for optional functionality. Currently, 11522 the following flags are defined: 11523 11524 OBJ_BSEARCH_VALUE_ON_NOMATCH 11525 This one gets OBJ_bsearch_ex() to return a pointer to the first 11526 element where the comparing function returns a negative or zero 11527 number. 11528 11529 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11530 This one gets OBJ_bsearch_ex() to return a pointer to the first 11531 element where the comparing function returns zero. This is useful 11532 if there are more than one element where the comparing function 11533 returns zero. 11534 11535 *Richard Levitte* 11536 11537 * Make it possible to create self-signed certificates with 'openssl ca' 11538 in such a way that the self-signed certificate becomes part of the 11539 CA database and uses the same mechanisms for serial number generation 11540 as all other certificate signing. The new flag '-selfsign' enables 11541 this functionality. Adapt CA.sh and CA.pl.in. 11542 11543 *Richard Levitte* 11544 11545 * Add functionality to check the public key of a certificate request 11546 against a given private. This is useful to check that a certificate 11547 request can be signed by that key (self-signing). 11548 11549 *Richard Levitte* 11550 11551 * Make it possible to have multiple active certificates with the same 11552 subject in the CA index file. This is done only if the keyword 11553 'unique_subject' is set to 'no' in the main CA section (default 11554 if 'CA_default') of the configuration file. The value is saved 11555 with the database itself in a separate index attribute file, 11556 named like the index file with '.attr' appended to the name. 11557 11558 *Richard Levitte* 11559 11560 * Generate multi-valued AVAs using '+' notation in config files for 11561 req and dirName. 11562 11563 *Steve Henson* 11564 11565 * Support for nameConstraints certificate extension. 11566 11567 *Steve Henson* 11568 11569 * Support for policyConstraints certificate extension. 11570 11571 *Steve Henson* 11572 11573 * Support for policyMappings certificate extension. 11574 11575 *Steve Henson* 11576 11577 * Make sure the default DSA_METHOD implementation only uses its 11578 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11579 and change its own handlers to be NULL so as to remove unnecessary 11580 indirection. This lets alternative implementations fallback to the 11581 default implementation more easily. 11582 11583 *Geoff Thorpe* 11584 11585 * Support for directoryName in GeneralName related extensions 11586 in config files. 11587 11588 *Steve Henson* 11589 11590 * Make it possible to link applications using Makefile.shared. 11591 Make that possible even when linking against static libraries! 11592 11593 *Richard Levitte* 11594 11595 * Support for single pass processing for S/MIME signing. This now 11596 means that S/MIME signing can be done from a pipe, in addition 11597 cleartext signing (multipart/signed type) is effectively streaming 11598 and the signed data does not need to be all held in memory. 11599 11600 This is done with a new flag PKCS7_STREAM. When this flag is set 11601 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11602 is done after the data is output (and digests calculated) in 11603 SMIME_write_PKCS7(). 11604 11605 *Steve Henson* 11606 11607 * Add full support for -rpath/-R, both in shared libraries and 11608 applications, at least on the platforms where it's known how 11609 to do it. 11610 11611 *Richard Levitte* 11612 11613 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11614 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11615 will now compute a table of multiples of the generator that 11616 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11617 faster (notably in the case of a single point multiplication, 11618 scalar * generator). 11619 11620 *Nils Larsch, Bodo Moeller* 11621 11622 * IPv6 support for certificate extensions. The various extensions 11623 which use the IP:a.b.c.d can now take IPv6 addresses using the 11624 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11625 correctly. 11626 11627 *Steve Henson* 11628 11629 * Added an ENGINE that implements RSA by performing private key 11630 exponentiations with the GMP library. The conversions to and from 11631 GMP's mpz_t format aren't optimised nor are any montgomery forms 11632 cached, and on x86 it appears OpenSSL's own performance has caught up. 11633 However there are likely to be other architectures where GMP could 11634 provide a boost. This ENGINE is not built in by default, but it can be 11635 specified at Configure time and should be accompanied by the necessary 11636 linker additions, eg; 11637 ./config -DOPENSSL_USE_GMP -lgmp 11638 11639 *Geoff Thorpe* 11640 11641 * "openssl engine" will not display ENGINE/DSO load failure errors when 11642 testing availability of engines with "-t" - the old behaviour is 11643 produced by increasing the feature's verbosity with "-tt". 11644 11645 *Geoff Thorpe* 11646 11647 * ECDSA routines: under certain error conditions uninitialized BN objects 11648 could be freed. Solution: make sure initialization is performed early 11649 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11650 via PR#459) 11651 11652 *Lutz Jaenicke* 11653 11654 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11655 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11656 software implementations. For DSA and DH, parameter generation can 11657 also be overridden by providing the appropriate method callbacks. 11658 11659 *Geoff Thorpe* 11660 11661 * Change the "progress" mechanism used in key-generation and 11662 primality testing to functions that take a new BN_GENCB pointer in 11663 place of callback/argument pairs. The new API functions have `_ex` 11664 postfixes and the older functions are reimplemented as wrappers for 11665 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11666 declarations of the old functions to help (graceful) attempts to 11667 migrate to the new functions. Also, the new key-generation API 11668 functions operate on a caller-supplied key-structure and return 11669 success/failure rather than returning a key or NULL - this is to 11670 help make "keygen" another member function of RSA_METHOD etc. 11671 11672 Example for using the new callback interface: 11673 11674 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11675 void *my_arg = ...; 11676 BN_GENCB my_cb; 11677 11678 BN_GENCB_set(&my_cb, my_callback, my_arg); 11679 11680 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11681 /* For the meaning of a, b in calls to my_callback(), see the 11682 * documentation of the function that calls the callback. 11683 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11684 * my_callback should return 1 if it wants BN_is_prime_ex() 11685 * to continue, or 0 to stop. 11686 */ 11687 11688 *Geoff Thorpe* 11689 11690 * Change the ZLIB compression method to be stateful, and make it 11691 available to TLS with the number defined in 11692 draft-ietf-tls-compression-04.txt. 11693 11694 *Richard Levitte* 11695 11696 * Add the ASN.1 structures and functions for CertificatePair, which 11697 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11698 11699 CertificatePair ::= SEQUENCE { 11700 forward [0] Certificate OPTIONAL, 11701 reverse [1] Certificate OPTIONAL, 11702 -- at least one of the pair shall be present -- } 11703 11704 Also implement the PEM functions to read and write certificate 11705 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11706 11707 This needed to be defined, mostly for the sake of the LDAP 11708 attribute crossCertificatePair, but may prove useful elsewhere as 11709 well. 11710 11711 *Richard Levitte* 11712 11713 * Make it possible to inhibit symlinking of shared libraries in 11714 Makefile.shared, for Cygwin's sake. 11715 11716 *Richard Levitte* 11717 11718 * Extend the BIGNUM API by creating a function 11719 void BN_set_negative(BIGNUM *a, int neg); 11720 and a macro that behave like 11721 int BN_is_negative(const BIGNUM *a); 11722 11723 to avoid the need to access 'a->neg' directly in applications. 11724 11725 *Nils Larsch* 11726 11727 * Implement fast modular reduction for pseudo-Mersenne primes 11728 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11729 EC_GROUP_new_curve_GFp() will now automatically use this 11730 if applicable. 11731 11732 *Nils Larsch <nla@trustcenter.de>* 11733 11734 * Add new lock type (CRYPTO_LOCK_BN). 11735 11736 *Bodo Moeller* 11737 11738 * Change the ENGINE framework to automatically load engines 11739 dynamically from specific directories unless they could be 11740 found to already be built in or loaded. Move all the 11741 current engines except for the cryptodev one to a new 11742 directory engines/. 11743 The engines in engines/ are built as shared libraries if 11744 the "shared" options was given to ./Configure or ./config. 11745 Otherwise, they are inserted in libcrypto.a. 11746 /usr/local/ssl/engines is the default directory for dynamic 11747 engines, but that can be overridden at configure time through 11748 the usual use of --prefix and/or --openssldir, and at run 11749 time with the environment variable OPENSSL_ENGINES. 11750 11751 *Geoff Thorpe and Richard Levitte* 11752 11753 * Add Makefile.shared, a helper makefile to build shared 11754 libraries. Adapt Makefile.org. 11755 11756 *Richard Levitte* 11757 11758 * Add version info to Win32 DLLs. 11759 11760 *Peter 'Luna' Runestig" <peter@runestig.com>* 11761 11762 * Add new 'medium level' PKCS#12 API. Certificates and keys 11763 can be added using this API to created arbitrary PKCS#12 11764 files while avoiding the low-level API. 11765 11766 New options to PKCS12_create(), key or cert can be NULL and 11767 will then be omitted from the output file. The encryption 11768 algorithm NIDs can be set to -1 for no encryption, the mac 11769 iteration count can be set to 0 to omit the mac. 11770 11771 Enhance pkcs12 utility by making the -nokeys and -nocerts 11772 options work when creating a PKCS#12 file. New option -nomac 11773 to omit the mac, NONE can be set for an encryption algorithm. 11774 New code is modified to use the enhanced PKCS12_create() 11775 instead of the low-level API. 11776 11777 *Steve Henson* 11778 11779 * Extend ASN1 encoder to support indefinite length constructed 11780 encoding. This can output sequences tags and octet strings in 11781 this form. Modify pk7_asn1.c to support indefinite length 11782 encoding. This is experimental and needs additional code to 11783 be useful, such as an ASN1 bio and some enhanced streaming 11784 PKCS#7 code. 11785 11786 Extend template encode functionality so that tagging is passed 11787 down to the template encoder. 11788 11789 *Steve Henson* 11790 11791 * Let 'openssl req' fail if an argument to '-newkey' is not 11792 recognized instead of using RSA as a default. 11793 11794 *Bodo Moeller* 11795 11796 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11797 As these are not official, they are not included in "ALL"; 11798 the "ECCdraft" ciphersuite group alias can be used to select them. 11799 11800 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11801 11802 * Add ECDH engine support. 11803 11804 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11805 11806 * Add ECDH in new directory crypto/ecdh/. 11807 11808 *Douglas Stebila (Sun Microsystems Laboratories)* 11809 11810 * Let BN_rand_range() abort with an error after 100 iterations 11811 without success (which indicates a broken PRNG). 11812 11813 *Bodo Moeller* 11814 11815 * Change BN_mod_sqrt() so that it verifies that the input value 11816 is really the square of the return value. (Previously, 11817 BN_mod_sqrt would show GIGO behaviour.) 11818 11819 *Bodo Moeller* 11820 11821 * Add named elliptic curves over binary fields from X9.62, SECG, 11822 and WAP/WTLS; add OIDs that were still missing. 11823 11824 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11825 11826 * Extend the EC library for elliptic curves over binary fields 11827 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11828 New EC_METHOD: 11829 11830 EC_GF2m_simple_method 11831 11832 New API functions: 11833 11834 EC_GROUP_new_curve_GF2m 11835 EC_GROUP_set_curve_GF2m 11836 EC_GROUP_get_curve_GF2m 11837 EC_POINT_set_affine_coordinates_GF2m 11838 EC_POINT_get_affine_coordinates_GF2m 11839 EC_POINT_set_compressed_coordinates_GF2m 11840 11841 Point compression for binary fields is disabled by default for 11842 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11843 enable it). 11844 11845 As binary polynomials are represented as BIGNUMs, various members 11846 of the EC_GROUP and EC_POINT data structures can be shared 11847 between the implementations for prime fields and binary fields; 11848 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11849 are essentially identical to their `..._GFp` counterparts. 11850 (For simplicity, the `..._GFp` prefix has been dropped from 11851 various internal method names.) 11852 11853 An internal 'field_div' method (similar to 'field_mul' and 11854 'field_sqr') has been added; this is used only for binary fields. 11855 11856 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11857 11858 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11859 through methods ('mul', 'precompute_mult'). 11860 11861 The generic implementations (now internally called 'ec_wNAF_mul' 11862 and 'ec_wNAF_precomputed_mult') remain the default if these 11863 methods are undefined. 11864 11865 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11866 11867 * New function EC_GROUP_get_degree, which is defined through 11868 EC_METHOD. For curves over prime fields, this returns the bit 11869 length of the modulus. 11870 11871 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11872 11873 * New functions EC_GROUP_dup, EC_POINT_dup. 11874 (These simply call ..._new and ..._copy). 11875 11876 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11877 11878 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11879 Polynomials are represented as BIGNUMs (where the sign bit is not 11880 used) in the following functions [macros]: 11881 11882 BN_GF2m_add 11883 BN_GF2m_sub [= BN_GF2m_add] 11884 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11885 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11886 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11887 BN_GF2m_mod_inv 11888 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11889 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11890 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11891 BN_GF2m_cmp [= BN_ucmp] 11892 11893 (Note that only the 'mod' functions are actually for fields GF(2^m). 11894 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11895 11896 For some functions, an the irreducible polynomial defining a 11897 field can be given as an 'unsigned int[]' with strictly 11898 decreasing elements giving the indices of those bits that are set; 11899 i.e., p[] represents the polynomial 11900 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11901 where 11902 p[0] > p[1] > ... > p[k] = 0. 11903 This applies to the following functions: 11904 11905 BN_GF2m_mod_arr 11906 BN_GF2m_mod_mul_arr 11907 BN_GF2m_mod_sqr_arr 11908 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11909 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11910 BN_GF2m_mod_exp_arr 11911 BN_GF2m_mod_sqrt_arr 11912 BN_GF2m_mod_solve_quad_arr 11913 BN_GF2m_poly2arr 11914 BN_GF2m_arr2poly 11915 11916 Conversion can be performed by the following functions: 11917 11918 BN_GF2m_poly2arr 11919 BN_GF2m_arr2poly 11920 11921 bntest.c has additional tests for binary polynomial arithmetic. 11922 11923 Two implementations for BN_GF2m_mod_div() are available. 11924 The default algorithm simply uses BN_GF2m_mod_inv() and 11925 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11926 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11927 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11928 11929 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11930 11931 * Add new error code 'ERR_R_DISABLED' that can be used when some 11932 functionality is disabled at compile-time. 11933 11934 *Douglas Stebila <douglas.stebila@sun.com>* 11935 11936 * Change default behaviour of 'openssl asn1parse' so that more 11937 information is visible when viewing, e.g., a certificate: 11938 11939 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11940 mode the content of non-printable OCTET STRINGs is output in a 11941 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11942 avoid the appearance of a printable string. 11943 11944 *Nils Larsch <nla@trustcenter.de>* 11945 11946 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11947 functions 11948 EC_GROUP_set_asn1_flag() 11949 EC_GROUP_get_asn1_flag() 11950 EC_GROUP_set_point_conversion_form() 11951 EC_GROUP_get_point_conversion_form() 11952 These control ASN1 encoding details: 11953 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11954 has been set to OPENSSL_EC_NAMED_CURVE. 11955 - Points are encoded in uncompressed form by default; options for 11956 asn1_for are as for point2oct, namely 11957 POINT_CONVERSION_COMPRESSED 11958 POINT_CONVERSION_UNCOMPRESSED 11959 POINT_CONVERSION_HYBRID 11960 11961 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11962 functions 11963 EC_GROUP_set_seed() 11964 EC_GROUP_get0_seed() 11965 EC_GROUP_get_seed_len() 11966 This is used only for ASN1 purposes (so far). 11967 11968 *Nils Larsch <nla@trustcenter.de>* 11969 11970 * Add 'field_type' member to EC_METHOD, which holds the NID 11971 of the appropriate field type OID. The new function 11972 EC_METHOD_get_field_type() returns this value. 11973 11974 *Nils Larsch <nla@trustcenter.de>* 11975 11976 * Add functions 11977 EC_POINT_point2bn() 11978 EC_POINT_bn2point() 11979 EC_POINT_point2hex() 11980 EC_POINT_hex2point() 11981 providing useful interfaces to EC_POINT_point2oct() and 11982 EC_POINT_oct2point(). 11983 11984 *Nils Larsch <nla@trustcenter.de>* 11985 11986 * Change internals of the EC library so that the functions 11987 EC_GROUP_set_generator() 11988 EC_GROUP_get_generator() 11989 EC_GROUP_get_order() 11990 EC_GROUP_get_cofactor() 11991 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11992 to methods, which would lead to unnecessary code duplication when 11993 adding different types of curves. 11994 11995 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11996 11997 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11998 arithmetic, and such that modified wNAFs are generated 11999 (which avoid length expansion in many cases). 12000 12001 *Bodo Moeller* 12002 12003 * Add a function EC_GROUP_check_discriminant() (defined via 12004 EC_METHOD) that verifies that the curve discriminant is non-zero. 12005 12006 Add a function EC_GROUP_check() that makes some sanity tests 12007 on a EC_GROUP, its generator and order. This includes 12008 EC_GROUP_check_discriminant(). 12009 12010 *Nils Larsch <nla@trustcenter.de>* 12011 12012 * Add ECDSA in new directory crypto/ecdsa/. 12013 12014 Add applications 'openssl ecparam' and 'openssl ecdsa' 12015 (these are based on 'openssl dsaparam' and 'openssl dsa'). 12016 12017 ECDSA support is also included in various other files across the 12018 library. Most notably, 12019 - 'openssl req' now has a '-newkey ecdsa:file' option; 12020 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 12021 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 12022 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 12023 them suitable for ECDSA where domain parameters must be 12024 extracted before the specific public key; 12025 - ECDSA engine support has been added. 12026 12027 *Nils Larsch <nla@trustcenter.de>* 12028 12029 * Include some named elliptic curves, and add OIDs from X9.62, 12030 SECG, and WAP/WTLS. Each curve can be obtained from the new 12031 function 12032 EC_GROUP_new_by_curve_name(), 12033 and the list of available named curves can be obtained with 12034 EC_get_builtin_curves(). 12035 Also add a 'curve_name' member to EC_GROUP objects, which can be 12036 accessed via 12037 EC_GROUP_set_curve_name() 12038 EC_GROUP_get_curve_name() 12039 12040 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 12041 12042 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 12043 was actually never needed) and in BN_mul(). The removal in BN_mul() 12044 required a small change in bn_mul_part_recursive() and the addition 12045 of the functions bn_cmp_part_words(), bn_sub_part_words() and 12046 bn_add_part_words(), which do the same thing as bn_cmp_words(), 12047 bn_sub_words() and bn_add_words() except they take arrays with 12048 differing sizes. 12049 12050 *Richard Levitte* 12051 12052### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 12053 12054 * Cleanse PEM buffers before freeing them since they may contain 12055 sensitive data. 12056 12057 *Benjamin Bennett <ben@psc.edu>* 12058 12059 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 12060 a ciphersuite string such as "DEFAULT:RSA" cannot enable 12061 authentication-only ciphersuites. 12062 12063 *Bodo Moeller* 12064 12065 * Since AES128 and AES256 share a single mask bit in the logic of 12066 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 12067 kludge to work properly if AES128 is available and AES256 isn't. 12068 12069 *Victor Duchovni* 12070 12071 * Expand security boundary to match 1.1.1 module. 12072 12073 *Steve Henson* 12074 12075 * Remove redundant features: hash file source, editing of test vectors 12076 modify fipsld to use external fips_premain.c signature. 12077 12078 *Steve Henson* 12079 12080 * New perl script mkfipsscr.pl to create shell scripts or batch files to 12081 run algorithm test programs. 12082 12083 *Steve Henson* 12084 12085 * Make algorithm test programs more tolerant of whitespace. 12086 12087 *Steve Henson* 12088 12089 * Have SSL/TLS server implementation tolerate "mismatched" record 12090 protocol version while receiving ClientHello even if the 12091 ClientHello is fragmented. (The server can't insist on the 12092 particular protocol version it has chosen before the ServerHello 12093 message has informed the client about his choice.) 12094 12095 *Bodo Moeller* 12096 12097 * Load error codes if they are not already present instead of using a 12098 static variable. This allows them to be cleanly unloaded and reloaded. 12099 12100 *Steve Henson* 12101 12102### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 12103 12104 * Introduce limits to prevent malicious keys being able to 12105 cause a denial of service. ([CVE-2006-2940]) 12106 12107 *Steve Henson, Bodo Moeller* 12108 12109 * Fix ASN.1 parsing of certain invalid structures that can result 12110 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 12111 12112 * Fix buffer overflow in SSL_get_shared_ciphers() function. 12113 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 12114 12115 * Fix SSL client code which could crash if connecting to a 12116 malicious SSLv2 server. ([CVE-2006-4343]) 12117 12118 *Tavis Ormandy and Will Drewry, Google Security Team* 12119 12120 * Change ciphersuite string processing so that an explicit 12121 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 12122 will no longer include "AES128-SHA"), and any other similar 12123 ciphersuite (same bitmap) from *other* protocol versions (so that 12124 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 12125 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 12126 changes from 0.9.8b and 0.9.8d. 12127 12128 *Bodo Moeller* 12129 12130### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 12131 12132 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 12133 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 12134 12135 * Change the Unix randomness entropy gathering to use poll() when 12136 possible instead of select(), since the latter has some 12137 undesirable limitations. 12138 12139 *Darryl Miles via Richard Levitte and Bodo Moeller* 12140 12141 * Disable rogue ciphersuites: 12142 12143 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 12144 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 12145 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 12146 12147 The latter two were purportedly from 12148 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 12149 appear there. 12150 12151 Also deactivate the remaining ciphersuites from 12152 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 12153 unofficial, and the ID has long expired. 12154 12155 *Bodo Moeller* 12156 12157 * Fix RSA blinding Heisenbug (problems sometimes occurred on 12158 dual-core machines) and other potential thread-safety issues. 12159 12160 *Bodo Moeller* 12161 12162### Changes between 0.9.7i and 0.9.7j [04 May 2006] 12163 12164 * Adapt fipsld and the build system to link against the validated FIPS 12165 module in FIPS mode. 12166 12167 *Steve Henson* 12168 12169 * Fixes for VC++ 2005 build under Windows. 12170 12171 *Steve Henson* 12172 12173 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 12174 from a Windows bash shell such as MSYS. It is autodetected from the 12175 "config" script when run from a VC++ environment. Modify standard VC++ 12176 build to use fipscanister.o from the GNU make build. 12177 12178 *Steve Henson* 12179 12180### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 12181 12182 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 12183 The value now differs depending on if you build for FIPS or not. 12184 BEWARE! A program linked with a shared FIPSed libcrypto can't be 12185 safely run with a non-FIPSed libcrypto, as it may crash because of 12186 the difference induced by this change. 12187 12188 *Andy Polyakov* 12189 12190### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 12191 12192 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 12193 (part of SSL_OP_ALL). This option used to disable the 12194 countermeasure against man-in-the-middle protocol-version 12195 rollback in the SSL 2.0 server implementation, which is a bad 12196 idea. ([CVE-2005-2969]) 12197 12198 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 12199 for Information Security, National Institute of Advanced Industrial 12200 Science and Technology [AIST, Japan)]* 12201 12202 * Minimal support for X9.31 signatures and PSS padding modes. This is 12203 mainly for FIPS compliance and not fully integrated at this stage. 12204 12205 *Steve Henson* 12206 12207 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 12208 the exponentiation using a fixed-length exponent. (Otherwise, 12209 the information leaked through timing could expose the secret key 12210 after many signatures; cf. Bleichenbacher's attack on DSA with 12211 biased k.) 12212 12213 *Bodo Moeller* 12214 12215 * Make a new fixed-window mod_exp implementation the default for 12216 RSA, DSA, and DH private-key operations so that the sequence of 12217 squares and multiplies and the memory access pattern are 12218 independent of the particular secret key. This will mitigate 12219 cache-timing and potential related attacks. 12220 12221 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 12222 and this is automatically used by BN_mod_exp_mont() if the new flag 12223 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 12224 will use this BN flag for private exponents unless the flag 12225 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 12226 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 12227 12228 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 12229 12230 * Change the client implementation for SSLv23_method() and 12231 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 12232 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 12233 (Previously, the SSL 2.0 backwards compatible Client Hello 12234 message format would be used even with SSL_OP_NO_SSLv2.) 12235 12236 *Bodo Moeller* 12237 12238 * Add support for smime-type MIME parameter in S/MIME messages which some 12239 clients need. 12240 12241 *Steve Henson* 12242 12243 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 12244 a threadsafe manner. Modify rsa code to use new function and add calls 12245 to dsa and dh code (which had race conditions before). 12246 12247 *Steve Henson* 12248 12249 * Include the fixed error library code in the C error file definitions 12250 instead of fixing them up at runtime. This keeps the error code 12251 structures constant. 12252 12253 *Steve Henson* 12254 12255### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 12256 12257[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 12258OpenSSL 0.9.8.] 12259 12260 * Fixes for newer kerberos headers. NB: the casts are needed because 12261 the 'length' field is signed on one version and unsigned on another 12262 with no (?) obvious way to tell the difference, without these VC++ 12263 complains. Also the "definition" of FAR (blank) is no longer included 12264 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 12265 some needed definitions. 12266 12267 *Steve Henson* 12268 12269 * Undo Cygwin change. 12270 12271 *Ulf Möller* 12272 12273 * Added support for proxy certificates according to RFC 3820. 12274 Because they may be a security thread to unaware applications, 12275 they must be explicitly allowed in run-time. See 12276 docs/HOWTO/proxy_certificates.txt for further information. 12277 12278 *Richard Levitte* 12279 12280### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 12281 12282 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 12283 server and client random values. Previously 12284 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 12285 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 12286 12287 This change has negligible security impact because: 12288 12289 1. Server and client random values still have 24 bytes of pseudo random 12290 data. 12291 12292 2. Server and client random values are sent in the clear in the initial 12293 handshake. 12294 12295 3. The master secret is derived using the premaster secret (48 bytes in 12296 size for static RSA ciphersuites) as well as client server and random 12297 values. 12298 12299 The OpenSSL team would like to thank the UK NISCC for bringing this issue 12300 to our attention. 12301 12302 *Stephen Henson, reported by UK NISCC* 12303 12304 * Use Windows randomness collection on Cygwin. 12305 12306 *Ulf Möller* 12307 12308 * Fix hang in EGD/PRNGD query when communication socket is closed 12309 prematurely by EGD/PRNGD. 12310 12311 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 12312 12313 * Prompt for pass phrases when appropriate for PKCS12 input format. 12314 12315 *Steve Henson* 12316 12317 * Back-port of selected performance improvements from development 12318 branch, as well as improved support for PowerPC platforms. 12319 12320 *Andy Polyakov* 12321 12322 * Add lots of checks for memory allocation failure, error codes to indicate 12323 failure and freeing up memory if a failure occurs. 12324 12325 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 12326 12327 * Add new -passin argument to dgst. 12328 12329 *Steve Henson* 12330 12331 * Perform some character comparisons of different types in X509_NAME_cmp: 12332 this is needed for some certificates that re-encode DNs into UTF8Strings 12333 (in violation of RFC3280) and can't or won't issue name rollover 12334 certificates. 12335 12336 *Steve Henson* 12337 12338 * Make an explicit check during certificate validation to see that 12339 the CA setting in each certificate on the chain is correct. As a 12340 side effect always do the following basic checks on extensions, 12341 not just when there's an associated purpose to the check: 12342 12343 - if there is an unhandled critical extension (unless the user 12344 has chosen to ignore this fault) 12345 - if the path length has been exceeded (if one is set at all) 12346 - that certain extensions fit the associated purpose (if one has 12347 been given) 12348 12349 *Richard Levitte* 12350 12351### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 12352 12353 * Avoid a race condition when CRLs are checked in a multi threaded 12354 environment. This would happen due to the reordering of the revoked 12355 entries during signature checking and serial number lookup. Now the 12356 encoding is cached and the serial number sort performed under a lock. 12357 Add new STACK function sk_is_sorted(). 12358 12359 *Steve Henson* 12360 12361 * Add Delta CRL to the extension code. 12362 12363 *Steve Henson* 12364 12365 * Various fixes to s3_pkt.c so alerts are sent properly. 12366 12367 *David Holmes <d.holmes@f5.com>* 12368 12369 * Reduce the chances of duplicate issuer name and serial numbers (in 12370 violation of RFC3280) using the OpenSSL certificate creation utilities. 12371 This is done by creating a random 64 bit value for the initial serial 12372 number when a serial number file is created or when a self signed 12373 certificate is created using 'openssl req -x509'. The initial serial 12374 number file is created using 'openssl x509 -next_serial' in CA.pl 12375 rather than being initialized to 1. 12376 12377 *Steve Henson* 12378 12379### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12380 12381 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12382 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12383 12384 *Joe Orton, Steve Henson* 12385 12386 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12387 ([CVE-2004-0112]) 12388 12389 *Joe Orton, Steve Henson* 12390 12391 * Make it possible to have multiple active certificates with the same 12392 subject in the CA index file. This is done only if the keyword 12393 'unique_subject' is set to 'no' in the main CA section (default 12394 if 'CA_default') of the configuration file. The value is saved 12395 with the database itself in a separate index attribute file, 12396 named like the index file with '.attr' appended to the name. 12397 12398 *Richard Levitte* 12399 12400 * X509 verify fixes. Disable broken certificate workarounds when 12401 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12402 keyUsage extension present. Don't accept CRLs with unhandled critical 12403 extensions: since verify currently doesn't process CRL extensions this 12404 rejects a CRL with *any* critical extensions. Add new verify error codes 12405 for these cases. 12406 12407 *Steve Henson* 12408 12409 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12410 A clarification of RFC2560 will require the use of OCTET STRINGs and 12411 some implementations cannot handle the current raw format. Since OpenSSL 12412 copies and compares OCSP nonces as opaque blobs without any attempt at 12413 parsing them this should not create any compatibility issues. 12414 12415 *Steve Henson* 12416 12417 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12418 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12419 this HMAC (and other) operations are several times slower than OpenSSL 12420 < 0.9.7. 12421 12422 *Steve Henson* 12423 12424 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12425 12426 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12427 12428 * Use the correct content when signing type "other". 12429 12430 *Steve Henson* 12431 12432### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12433 12434 * Fix various bugs revealed by running the NISCC test suite: 12435 12436 Stop out of bounds reads in the ASN1 code when presented with 12437 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12438 12439 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12440 12441 If verify callback ignores invalid public key errors don't try to check 12442 certificate signature with the NULL public key. 12443 12444 *Steve Henson* 12445 12446 * New -ignore_err option in ocsp application to stop the server 12447 exiting on the first error in a request. 12448 12449 *Steve Henson* 12450 12451 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12452 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12453 specifications. 12454 12455 *Steve Henson* 12456 12457 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12458 extra data after the compression methods not only for TLS 1.0 12459 but also for SSL 3.0 (as required by the specification). 12460 12461 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12462 12463 * Change X509_certificate_type() to mark the key as exported/exportable 12464 when it's 512 *bits* long, not 512 bytes. 12465 12466 *Richard Levitte* 12467 12468 * Change AES_cbc_encrypt() so it outputs exact multiple of 12469 blocks during encryption. 12470 12471 *Richard Levitte* 12472 12473 * Various fixes to base64 BIO and non blocking I/O. On write 12474 flushes were not handled properly if the BIO retried. On read 12475 data was not being buffered properly and had various logic bugs. 12476 This also affects blocking I/O when the data being decoded is a 12477 certain size. 12478 12479 *Steve Henson* 12480 12481 * Various S/MIME bugfixes and compatibility changes: 12482 output correct application/pkcs7 MIME type if 12483 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12484 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12485 of files as .eml work). Correctly handle very long lines in MIME 12486 parser. 12487 12488 *Steve Henson* 12489 12490### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12491 12492 * Countermeasure against the Klima-Pokorny-Rosa extension of 12493 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12494 a protocol version number mismatch like a decryption error 12495 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12496 12497 *Bodo Moeller* 12498 12499 * Turn on RSA blinding by default in the default implementation 12500 to avoid a timing attack. Applications that don't want it can call 12501 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12502 They would be ill-advised to do so in most cases. 12503 12504 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12505 12506 * Change RSA blinding code so that it works when the PRNG is not 12507 seeded (in this case, the secret RSA exponent is abused as 12508 an unpredictable seed -- if it is not unpredictable, there 12509 is no point in blinding anyway). Make RSA blinding thread-safe 12510 by remembering the creator's thread ID in rsa->blinding and 12511 having all other threads use local one-time blinding factors 12512 (this requires more computation than sharing rsa->blinding, but 12513 avoids excessive locking; and if an RSA object is not shared 12514 between threads, blinding will still be very fast). 12515 12516 *Bodo Moeller* 12517 12518 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12519 ENGINE as defaults for all supported algorithms irrespective of 12520 the 'flags' parameter. 'flags' is now honoured, so applications 12521 should make sure they are passing it correctly. 12522 12523 *Geoff Thorpe* 12524 12525 * Target "mingw" now allows native Windows code to be generated in 12526 the Cygwin environment as well as with the MinGW compiler. 12527 12528 *Ulf Moeller* 12529 12530### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12531 12532 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12533 via timing by performing a MAC computation even if incorrect 12534 block cipher padding has been found. This is a countermeasure 12535 against active attacks where the attacker has to distinguish 12536 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12537 12538 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12539 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12540 Martin Vuagnoux (EPFL, Ilion)* 12541 12542 * Make the no-err option work as intended. The intention with no-err 12543 is not to have the whole error stack handling routines removed from 12544 libcrypto, it's only intended to remove all the function name and 12545 reason texts, thereby removing some of the footprint that may not 12546 be interesting if those errors aren't displayed anyway. 12547 12548 NOTE: it's still possible for any application or module to have its 12549 own set of error texts inserted. The routines are there, just not 12550 used by default when no-err is given. 12551 12552 *Richard Levitte* 12553 12554 * Add support for FreeBSD on IA64. 12555 12556 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12557 12558 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12559 Kerberos function mit_des_cbc_cksum(). Before this change, 12560 the value returned by DES_cbc_cksum() was like the one from 12561 mit_des_cbc_cksum(), except the bytes were swapped. 12562 12563 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12564 12565 * Allow an application to disable the automatic SSL chain building. 12566 Before this a rather primitive chain build was always performed in 12567 ssl3_output_cert_chain(): an application had no way to send the 12568 correct chain if the automatic operation produced an incorrect result. 12569 12570 Now the chain builder is disabled if either: 12571 12572 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12573 12574 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12575 12576 The reasoning behind this is that an application would not want the 12577 auto chain building to take place if extra chain certificates are 12578 present and it might also want a means of sending no additional 12579 certificates (for example the chain has two certificates and the 12580 root is omitted). 12581 12582 *Steve Henson* 12583 12584 * Add the possibility to build without the ENGINE framework. 12585 12586 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12587 12588 * Under Win32 gmtime() can return NULL: check return value in 12589 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12590 12591 *Steve Henson* 12592 12593 * DSA routines: under certain error conditions uninitialized BN objects 12594 could be freed. Solution: make sure initialization is performed early 12595 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12596 Nils Larsch <nla@trustcenter.de> via PR#459) 12597 12598 *Lutz Jaenicke* 12599 12600 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12601 checked on reconnect on the client side, therefore session resumption 12602 could still fail with a "ssl session id is different" error. This 12603 behaviour is masked when SSL_OP_ALL is used due to 12604 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12605 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12606 followup to PR #377. 12607 12608 *Lutz Jaenicke* 12609 12610 * IA-32 assembler support enhancements: unified ELF targets, support 12611 for SCO/Caldera platforms, fix for Cygwin shared build. 12612 12613 *Andy Polyakov* 12614 12615 * Add support for FreeBSD on sparc64. As a consequence, support for 12616 FreeBSD on non-x86 processors is separate from x86 processors on 12617 the config script, much like the NetBSD support. 12618 12619 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12620 12621### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12622 12623[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12624OpenSSL 0.9.7.] 12625 12626 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12627 code (06) was taken as the first octet of the session ID and the last 12628 octet was ignored consequently. As a result SSLv2 client side session 12629 caching could not have worked due to the session ID mismatch between 12630 client and server. 12631 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12632 PR #377. 12633 12634 *Lutz Jaenicke* 12635 12636 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12637 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12638 removed entirely. 12639 12640 *Richard Levitte* 12641 12642 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12643 seems that in spite of existing for more than a year, many application 12644 author have done nothing to provide the necessary callbacks, which 12645 means that this particular engine will not work properly anywhere. 12646 This is a very unfortunate situation which forces us, in the name 12647 of usability, to give the hw_ncipher.c a static lock, which is part 12648 of libcrypto. 12649 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12650 appear in 0.9.8 or later. We EXPECT application authors to have 12651 dealt properly with this when 0.9.8 is released (unless we actually 12652 make such changes in the libcrypto locking code that changes will 12653 have to be made anyway). 12654 12655 *Richard Levitte* 12656 12657 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12658 octets have been read, EOF or an error occurs. Without this change 12659 some truncated ASN1 structures will not produce an error. 12660 12661 *Steve Henson* 12662 12663 * Disable Heimdal support, since it hasn't been fully implemented. 12664 Still give the possibility to force the use of Heimdal, but with 12665 warnings and a request that patches get sent to openssl-dev. 12666 12667 *Richard Levitte* 12668 12669 * Add the VC-CE target, introduce the WINCE sysname, and add 12670 INSTALL.WCE and appropriate conditionals to make it build. 12671 12672 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12673 12674 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12675 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12676 edit numbers of the version. 12677 12678 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12679 12680 * Introduce safe string copy and catenation functions 12681 (BUF_strlcpy() and BUF_strlcat()). 12682 12683 *Ben Laurie (CHATS) and Richard Levitte* 12684 12685 * Avoid using fixed-size buffers for one-line DNs. 12686 12687 *Ben Laurie (CHATS)* 12688 12689 * Add BUF_MEM_grow_clean() to avoid information leakage when 12690 resizing buffers containing secrets, and use where appropriate. 12691 12692 *Ben Laurie (CHATS)* 12693 12694 * Avoid using fixed size buffers for configuration file location. 12695 12696 *Ben Laurie (CHATS)* 12697 12698 * Avoid filename truncation for various CA files. 12699 12700 *Ben Laurie (CHATS)* 12701 12702 * Use sizeof in preference to magic numbers. 12703 12704 *Ben Laurie (CHATS)* 12705 12706 * Avoid filename truncation in cert requests. 12707 12708 *Ben Laurie (CHATS)* 12709 12710 * Add assertions to check for (supposedly impossible) buffer 12711 overflows. 12712 12713 *Ben Laurie (CHATS)* 12714 12715 * Don't cache truncated DNS entries in the local cache (this could 12716 potentially lead to a spoofing attack). 12717 12718 *Ben Laurie (CHATS)* 12719 12720 * Fix various buffers to be large enough for hex/decimal 12721 representations in a platform independent manner. 12722 12723 *Ben Laurie (CHATS)* 12724 12725 * Add CRYPTO_realloc_clean() to avoid information leakage when 12726 resizing buffers containing secrets, and use where appropriate. 12727 12728 *Ben Laurie (CHATS)* 12729 12730 * Add BIO_indent() to avoid much slightly worrying code to do 12731 indents. 12732 12733 *Ben Laurie (CHATS)* 12734 12735 * Convert sprintf()/BIO_puts() to BIO_printf(). 12736 12737 *Ben Laurie (CHATS)* 12738 12739 * buffer_gets() could terminate with the buffer only half 12740 full. Fixed. 12741 12742 *Ben Laurie (CHATS)* 12743 12744 * Add assertions to prevent user-supplied crypto functions from 12745 overflowing internal buffers by having large block sizes, etc. 12746 12747 *Ben Laurie (CHATS)* 12748 12749 * New OPENSSL_assert() macro (similar to assert(), but enabled 12750 unconditionally). 12751 12752 *Ben Laurie (CHATS)* 12753 12754 * Eliminate unused copy of key in RC4. 12755 12756 *Ben Laurie (CHATS)* 12757 12758 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12759 12760 *Ben Laurie (CHATS)* 12761 12762 * Fix off-by-one error in EGD path. 12763 12764 *Ben Laurie (CHATS)* 12765 12766 * If RANDFILE path is too long, ignore instead of truncating. 12767 12768 *Ben Laurie (CHATS)* 12769 12770 * Eliminate unused and incorrectly sized X.509 structure 12771 CBCParameter. 12772 12773 *Ben Laurie (CHATS)* 12774 12775 * Eliminate unused and dangerous function knumber(). 12776 12777 *Ben Laurie (CHATS)* 12778 12779 * Eliminate unused and dangerous structure, KSSL_ERR. 12780 12781 *Ben Laurie (CHATS)* 12782 12783 * Protect against overlong session ID context length in an encoded 12784 session object. Since these are local, this does not appear to be 12785 exploitable. 12786 12787 *Ben Laurie (CHATS)* 12788 12789 * Change from security patch (see 0.9.6e below) that did not affect 12790 the 0.9.6 release series: 12791 12792 Remote buffer overflow in SSL3 protocol - an attacker could 12793 supply an oversized master key in Kerberos-enabled versions. 12794 ([CVE-2002-0657]) 12795 12796 *Ben Laurie (CHATS)* 12797 12798 * Change the SSL kerb5 codes to match RFC 2712. 12799 12800 *Richard Levitte* 12801 12802 * Make -nameopt work fully for req and add -reqopt switch. 12803 12804 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12805 12806 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12807 12808 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12809 12810 * Make sure tests can be performed even if the corresponding algorithms 12811 have been removed entirely. This was also the last step to make 12812 OpenSSL compilable with DJGPP under all reasonable conditions. 12813 12814 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12815 12816 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12817 to allow version independent disabling of normally unselected ciphers, 12818 which may be activated as a side-effect of selecting a single cipher. 12819 12820 (E.g., cipher list string "RSA" enables ciphersuites that are left 12821 out of "ALL" because they do not provide symmetric encryption. 12822 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12823 12824 *Lutz Jaenicke, Bodo Moeller* 12825 12826 * Add appropriate support for separate platform-dependent build 12827 directories. The recommended way to make a platform-dependent 12828 build directory is the following (tested on Linux), maybe with 12829 some local tweaks: 12830 12831 # Place yourself outside of the OpenSSL source tree. In 12832 # this example, the environment variable OPENSSL_SOURCE 12833 # is assumed to contain the absolute OpenSSL source directory. 12834 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12835 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12836 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12837 mkdir -p `dirname $F` 12838 ln -s $OPENSSL_SOURCE/$F $F 12839 done 12840 12841 To be absolutely sure not to disturb the source tree, a "make clean" 12842 is a good thing. If it isn't successful, don't worry about it, 12843 it probably means the source directory is very clean. 12844 12845 *Richard Levitte* 12846 12847 * Make sure any ENGINE control commands make local copies of string 12848 pointers passed to them whenever necessary. Otherwise it is possible 12849 the caller may have overwritten (or deallocated) the original string 12850 data when a later ENGINE operation tries to use the stored values. 12851 12852 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12853 12854 * Improve diagnostics in file reading and command-line digests. 12855 12856 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12857 12858 * Add AES modes CFB and OFB to the object database. Correct an 12859 error in AES-CFB decryption. 12860 12861 *Richard Levitte* 12862 12863 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12864 allows existing EVP_CIPHER_CTX structures to be reused after 12865 calling `EVP_*Final()`. This behaviour is used by encryption 12866 BIOs and some applications. This has the side effect that 12867 applications must explicitly clean up cipher contexts with 12868 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12869 12870 *Steve Henson* 12871 12872 * Check the values of dna and dnb in bn_mul_recursive before calling 12873 bn_mul_comba (a non zero value means the a or b arrays do not contain 12874 n2 elements) and fallback to bn_mul_normal if either is not zero. 12875 12876 *Steve Henson* 12877 12878 * Fix escaping of non-ASCII characters when using the -subj option 12879 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12880 12881 *Lutz Jaenicke* 12882 12883 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12884 form for "surname", serialNumber has no short form. 12885 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12886 therefore remove "mail" short name for "internet 7". 12887 The OID for unique identifiers in X509 certificates is 12888 x500UniqueIdentifier, not uniqueIdentifier. 12889 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12890 12891 *Lutz Jaenicke* 12892 12893 * Add an "init" command to the ENGINE config module and auto initialize 12894 ENGINEs. Without any "init" command the ENGINE will be initialized 12895 after all ctrl commands have been executed on it. If init=1 the 12896 ENGINE is initialized at that point (ctrls before that point are run 12897 on the uninitialized ENGINE and after on the initialized one). If 12898 init=0 then the ENGINE will not be initialized at all. 12899 12900 *Steve Henson* 12901 12902 * Fix the 'app_verify_callback' interface so that the user-defined 12903 argument is actually passed to the callback: In the 12904 SSL_CTX_set_cert_verify_callback() prototype, the callback 12905 declaration has been changed from 12906 int (*cb)() 12907 into 12908 int (*cb)(X509_STORE_CTX *,void *); 12909 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12910 i=s->ctx->app_verify_callback(&ctx) 12911 has been changed into 12912 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12913 12914 To update applications using SSL_CTX_set_cert_verify_callback(), 12915 a dummy argument can be added to their callback functions. 12916 12917 *D. K. Smetters <smetters@parc.xerox.com>* 12918 12919 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12920 12921 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12922 12923 * Add and OPENSSL_LOAD_CONF define which will cause 12924 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12925 This allows older applications to transparently support certain 12926 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12927 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12928 load the config file and OPENSSL_add_all_algorithms_conf() which will 12929 always load it have also been added. 12930 12931 *Steve Henson* 12932 12933 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12934 Adjust NIDs and EVP layer. 12935 12936 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12937 12938 * Config modules support in openssl utility. 12939 12940 Most commands now load modules from the config file, 12941 though in a few (such as version) this isn't done 12942 because it couldn't be used for anything. 12943 12944 In the case of ca and req the config file used is 12945 the same as the utility itself: that is the -config 12946 command line option can be used to specify an 12947 alternative file. 12948 12949 *Steve Henson* 12950 12951 * Move default behaviour from OPENSSL_config(). If appname is NULL 12952 use "openssl_conf" if filename is NULL use default openssl config file. 12953 12954 *Steve Henson* 12955 12956 * Add an argument to OPENSSL_config() to allow the use of an alternative 12957 config section name. Add a new flag to tolerate a missing config file 12958 and move code to CONF_modules_load_file(). 12959 12960 *Steve Henson* 12961 12962 * Support for crypto accelerator cards from Accelerated Encryption 12963 Processing, www.aep.ie. (Use engine 'aep') 12964 The support was copied from 0.9.6c [engine] and adapted/corrected 12965 to work with the new engine framework. 12966 12967 *AEP Inc. and Richard Levitte* 12968 12969 * Support for SureWare crypto accelerator cards from Baltimore 12970 Technologies. (Use engine 'sureware') 12971 The support was copied from 0.9.6c [engine] and adapted 12972 to work with the new engine framework. 12973 12974 *Richard Levitte* 12975 12976 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12977 make the newer ENGINE framework commands for the CHIL engine work. 12978 12979 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12980 12981 * Make it possible to produce shared libraries on ReliantUNIX. 12982 12983 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12984 12985 * Add the configuration target debug-linux-ppro. 12986 Make 'openssl rsa' use the general key loading routines 12987 implemented in `apps.c`, and make those routines able to 12988 handle the key format FORMAT_NETSCAPE and the variant 12989 FORMAT_IISSGC. 12990 12991 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12992 12993 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12994 12995 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12996 12997 * Add -keyform to rsautl, and document -engine. 12998 12999 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 13000 13001 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 13002 BIO_R_NO_SUCH_FILE error code rather than the generic 13003 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 13004 13005 *Ben Laurie* 13006 13007 * Add new functions 13008 ERR_peek_last_error 13009 ERR_peek_last_error_line 13010 ERR_peek_last_error_line_data. 13011 These are similar to 13012 ERR_peek_error 13013 ERR_peek_error_line 13014 ERR_peek_error_line_data, 13015 but report on the latest error recorded rather than the first one 13016 still in the error queue. 13017 13018 *Ben Laurie, Bodo Moeller* 13019 13020 * default_algorithms option in ENGINE config module. This allows things 13021 like: 13022 default_algorithms = ALL 13023 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 13024 13025 *Steve Henson* 13026 13027 * Preliminary ENGINE config module. 13028 13029 *Steve Henson* 13030 13031 * New experimental application configuration code. 13032 13033 *Steve Henson* 13034 13035 * Change the AES code to follow the same name structure as all other 13036 symmetric ciphers, and behave the same way. Move everything to 13037 the directory crypto/aes, thereby obsoleting crypto/rijndael. 13038 13039 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 13040 13041 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 13042 13043 *Ben Laurie and Theo de Raadt* 13044 13045 * Add option to output public keys in req command. 13046 13047 *Massimiliano Pala madwolf@openca.org* 13048 13049 * Use wNAFs in EC_POINTs_mul() for improved efficiency 13050 (up to about 10% better than before for P-192 and P-224). 13051 13052 *Bodo Moeller* 13053 13054 * New functions/macros 13055 13056 SSL_CTX_set_msg_callback(ctx, cb) 13057 SSL_CTX_set_msg_callback_arg(ctx, arg) 13058 SSL_set_msg_callback(ssl, cb) 13059 SSL_set_msg_callback_arg(ssl, arg) 13060 13061 to request calling a callback function 13062 13063 void cb(int write_p, int version, int content_type, 13064 const void *buf, size_t len, SSL *ssl, void *arg) 13065 13066 whenever a protocol message has been completely received 13067 (write_p == 0) or sent (write_p == 1). Here 'version' is the 13068 protocol version according to which the SSL library interprets 13069 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 13070 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 13071 the content type as defined in the SSL 3.0/TLS 1.0 protocol 13072 specification (change_cipher_spec(20), alert(21), handshake(22)). 13073 'buf' and 'len' point to the actual message, 'ssl' to the 13074 SSL object, and 'arg' is the application-defined value set by 13075 SSL[_CTX]_set_msg_callback_arg(). 13076 13077 'openssl s_client' and 'openssl s_server' have new '-msg' options 13078 to enable a callback that displays all protocol messages. 13079 13080 *Bodo Moeller* 13081 13082 * Change the shared library support so shared libraries are built as 13083 soon as the corresponding static library is finished, and thereby get 13084 openssl and the test programs linked against the shared library. 13085 This still only happens when the keyword "shard" has been given to 13086 the configuration scripts. 13087 13088 NOTE: shared library support is still an experimental thing, and 13089 backward binary compatibility is still not guaranteed. 13090 13091 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 13092 13093 * Add support for Subject Information Access extension. 13094 13095 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 13096 13097 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 13098 additional bytes when new memory had to be allocated, not just 13099 when reusing an existing buffer. 13100 13101 *Bodo Moeller* 13102 13103 * New command line and configuration option 'utf8' for the req command. 13104 This allows field values to be specified as UTF8 strings. 13105 13106 *Steve Henson* 13107 13108 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 13109 runs for the former and machine-readable output for the latter. 13110 13111 *Ben Laurie* 13112 13113 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 13114 of the e-mail address in the DN (i.e., it will go into a certificate 13115 extension only). The new configuration file option 'email_in_dn = no' 13116 has the same effect. 13117 13118 *Massimiliano Pala madwolf@openca.org* 13119 13120 * Change all functions with names starting with `des_` to be starting 13121 with `DES_` instead. Add wrappers that are compatible with libdes, 13122 but are named `_ossl_old_des_*`. Finally, add macros that map the 13123 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 13124 compatibility is desired. If OpenSSL 0.9.6c compatibility is 13125 desired, the `des_*` symbols will be mapped to `DES_*`, with one 13126 exception. 13127 13128 Since we provide two compatibility mappings, the user needs to 13129 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 13130 compatibility is desired. The default (i.e., when that macro 13131 isn't defined) is OpenSSL 0.9.6c compatibility. 13132 13133 There are also macros that enable and disable the support of old 13134 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 13135 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 13136 are defined, the default will apply: to support the old des routines. 13137 13138 In either case, one must include openssl/des.h to get the correct 13139 definitions. Do not try to just include openssl/des_old.h, that 13140 won't work. 13141 13142 NOTE: This is a major break of an old API into a new one. Software 13143 authors are encouraged to switch to the `DES_` style functions. Some 13144 time in the future, des_old.h and the libdes compatibility functions 13145 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 13146 default), and then completely removed. 13147 13148 *Richard Levitte* 13149 13150 * Test for certificates which contain unsupported critical extensions. 13151 If such a certificate is found during a verify operation it is 13152 rejected by default: this behaviour can be overridden by either 13153 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 13154 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 13155 X509_supported_extension() has also been added which returns 1 if a 13156 particular extension is supported. 13157 13158 *Steve Henson* 13159 13160 * Modify the behaviour of EVP cipher functions in similar way to digests 13161 to retain compatibility with existing code. 13162 13163 *Steve Henson* 13164 13165 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 13166 compatibility with existing code. In particular the 'ctx' parameter does 13167 not have to be to be initialized before the call to EVP_DigestInit() and 13168 it is tidied up after a call to EVP_DigestFinal(). New function 13169 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 13170 EVP_MD_CTX_copy() changed to not require the destination to be 13171 initialized valid and new function EVP_MD_CTX_copy_ex() added which 13172 requires the destination to be valid. 13173 13174 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 13175 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 13176 13177 *Steve Henson* 13178 13179 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 13180 so that complete 'Handshake' protocol structures are kept in memory 13181 instead of overwriting 'msg_type' and 'length' with 'body' data. 13182 13183 *Bodo Moeller* 13184 13185 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 13186 13187 *Massimo Santin via Richard Levitte* 13188 13189 * Major restructuring to the underlying ENGINE code. This includes 13190 reduction of linker bloat, separation of pure "ENGINE" manipulation 13191 (initialisation, etc) from functionality dealing with implementations 13192 of specific crypto interfaces. This change also introduces integrated 13193 support for symmetric ciphers and digest implementations - so ENGINEs 13194 can now accelerate these by providing EVP_CIPHER and EVP_MD 13195 implementations of their own. This is detailed in 13196 [crypto/engine/README.md](crypto/engine/README.md) 13197 as it couldn't be adequately described here. However, there are a few 13198 API changes worth noting - some RSA, DSA, DH, and RAND functions that 13199 were changed in the original introduction of ENGINE code have now 13200 reverted back - the hooking from this code to ENGINE is now a good 13201 deal more passive and at run-time, operations deal directly with 13202 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 13203 dereferencing through an ENGINE pointer any more. Also, the ENGINE 13204 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 13205 they were not being used by the framework as there is no concept of a 13206 BIGNUM_METHOD and they could not be generalised to the new 13207 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 13208 ENGINE_cpy() has been removed as it cannot be consistently defined in 13209 the new code. 13210 13211 *Geoff Thorpe* 13212 13213 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 13214 13215 *Steve Henson* 13216 13217 * Change mkdef.pl to sort symbols that get the same entry number, 13218 and make sure the automatically generated functions `ERR_load_*` 13219 become part of libeay.num as well. 13220 13221 *Richard Levitte* 13222 13223 * New function SSL_renegotiate_pending(). This returns true once 13224 renegotiation has been requested (either SSL_renegotiate() call 13225 or HelloRequest/ClientHello received from the peer) and becomes 13226 false once a handshake has been completed. 13227 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 13228 sends a HelloRequest, but does not ensure that a handshake takes 13229 place. SSL_renegotiate_pending() is useful for checking if the 13230 client has followed the request.) 13231 13232 *Bodo Moeller* 13233 13234 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 13235 By default, clients may request session resumption even during 13236 renegotiation (if session ID contexts permit); with this option, 13237 session resumption is possible only in the first handshake. 13238 13239 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 13240 more bits available for options that should not be part of 13241 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 13242 13243 *Bodo Moeller* 13244 13245 * Add some demos for certificate and certificate request creation. 13246 13247 *Steve Henson* 13248 13249 * Make maximum certificate chain size accepted from the peer application 13250 settable (`SSL*_get/set_max_cert_list()`), as proposed by 13251 "Douglas E. Engert" <deengert@anl.gov>. 13252 13253 *Lutz Jaenicke* 13254 13255 * Add support for shared libraries for Unixware-7 13256 (Boyd Lynn Gerber <gerberb@zenez.com>). 13257 13258 *Lutz Jaenicke* 13259 13260 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 13261 be done prior to destruction. Use this to unload error strings from 13262 ENGINEs that load their own error strings. NB: This adds two new API 13263 functions to "get" and "set" this destroy handler in an ENGINE. 13264 13265 *Geoff Thorpe* 13266 13267 * Alter all existing ENGINE implementations (except "openssl" and 13268 "openbsd") to dynamically instantiate their own error strings. This 13269 makes them more flexible to be built both as statically-linked ENGINEs 13270 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 13271 Also, add stub code to each that makes building them as self-contained 13272 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 13273 13274 *Geoff Thorpe* 13275 13276 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 13277 implementations into applications that are completely implemented in 13278 self-contained shared-libraries. The "dynamic" ENGINE exposes control 13279 commands that can be used to configure what shared-library to load and 13280 to control aspects of the way it is handled. Also, made an update to 13281 the [README-Engine.md](README-Engine.md) file 13282 that brings its information up-to-date and 13283 provides some information and instructions on the "dynamic" ENGINE 13284 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 13285 13286 *Geoff Thorpe* 13287 13288 * Make it possible to unload ranges of ERR strings with a new 13289 "ERR_unload_strings" function. 13290 13291 *Geoff Thorpe* 13292 13293 * Add a copy() function to EVP_MD. 13294 13295 *Ben Laurie* 13296 13297 * Make EVP_MD routines take a context pointer instead of just the 13298 md_data void pointer. 13299 13300 *Ben Laurie* 13301 13302 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 13303 that the digest can only process a single chunk of data 13304 (typically because it is provided by a piece of 13305 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 13306 is only going to provide a single chunk of data, and hence the 13307 framework needn't accumulate the data for oneshot drivers. 13308 13309 *Ben Laurie* 13310 13311 * As with "ERR", make it possible to replace the underlying "ex_data" 13312 functions. This change also alters the storage and management of global 13313 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 13314 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 13315 index counters. The API functions that use this state have been changed 13316 to take a "class_index" rather than pointers to the class's local STACK 13317 and counter, and there is now an API function to dynamically create new 13318 classes. This centralisation allows us to (a) plug a lot of the 13319 thread-safety problems that existed, and (b) makes it possible to clean 13320 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 13321 such data would previously have always leaked in application code and 13322 workarounds were in place to make the memory debugging turn a blind eye 13323 to it. Application code that doesn't use this new function will still 13324 leak as before, but their memory debugging output will announce it now 13325 rather than letting it slide. 13326 13327 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 13328 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 13329 has a return value to indicate success or failure. 13330 13331 *Geoff Thorpe* 13332 13333 * Make it possible to replace the underlying "ERR" functions such that the 13334 global state (2 LHASH tables and 2 locks) is only used by the "default" 13335 implementation. This change also adds two functions to "get" and "set" 13336 the implementation prior to it being automatically set the first time 13337 any other ERR function takes place. Ie. an application can call "get", 13338 pass the return value to a module it has just loaded, and that module 13339 can call its own "set" function using that value. This means the 13340 module's "ERR" operations will use (and modify) the error state in the 13341 application and not in its own statically linked copy of OpenSSL code. 13342 13343 *Geoff Thorpe* 13344 13345 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 13346 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 13347 the operation, and provides a more encapsulated way for external code 13348 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 13349 to use these functions rather than manually incrementing the counts. 13350 13351 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 13352 13353 *Geoff Thorpe* 13354 13355 * Add EVP test program. 13356 13357 *Ben Laurie* 13358 13359 * Add symmetric cipher support to ENGINE. Expect the API to change! 13360 13361 *Ben Laurie* 13362 13363 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 13364 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 13365 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 13366 These allow a CRL to be built without having to access X509_CRL fields 13367 directly. Modify 'ca' application to use new functions. 13368 13369 *Steve Henson* 13370 13371 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 13372 bug workarounds. Rollback attack detection is a security feature. 13373 The problem will only arise on OpenSSL servers when TLSv1 is not 13374 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13375 Software authors not wanting to support TLSv1 will have special reasons 13376 for their choice and can explicitly enable this option. 13377 13378 *Bodo Moeller, Lutz Jaenicke* 13379 13380 * Rationalise EVP so it can be extended: don't include a union of 13381 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13382 (similar to those existing for EVP_CIPHER_CTX). 13383 Usage example: 13384 13385 EVP_MD_CTX md; 13386 13387 EVP_MD_CTX_init(&md); /* new function call */ 13388 EVP_DigestInit(&md, EVP_sha1()); 13389 EVP_DigestUpdate(&md, in, len); 13390 EVP_DigestFinal(&md, out, NULL); 13391 EVP_MD_CTX_cleanup(&md); /* new function call */ 13392 13393 *Ben Laurie* 13394 13395 * Make DES key schedule conform to the usual scheme, as well as 13396 correcting its structure. This means that calls to DES functions 13397 now have to pass a pointer to a des_key_schedule instead of a 13398 plain des_key_schedule (which was actually always a pointer 13399 anyway): E.g., 13400 13401 des_key_schedule ks; 13402 13403 des_set_key_checked(..., &ks); 13404 des_ncbc_encrypt(..., &ks, ...); 13405 13406 (Note that a later change renames 'des_...' into 'DES_...'.) 13407 13408 *Ben Laurie* 13409 13410 * Initial reduction of linker bloat: the use of some functions, such as 13411 PEM causes large amounts of unused functions to be linked in due to 13412 poor organisation. For example pem_all.c contains every PEM function 13413 which has a knock on effect of linking in large amounts of (unused) 13414 ASN1 code. Grouping together similar functions and splitting unrelated 13415 functions prevents this. 13416 13417 *Steve Henson* 13418 13419 * Cleanup of EVP macros. 13420 13421 *Ben Laurie* 13422 13423 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13424 correct `_ecb suffix`. 13425 13426 *Ben Laurie* 13427 13428 * Add initial OCSP responder support to ocsp application. The 13429 revocation information is handled using the text based index 13430 use by the ca application. The responder can either handle 13431 requests generated internally, supplied in files (for example 13432 via a CGI script) or using an internal minimal server. 13433 13434 *Steve Henson* 13435 13436 * Add configuration choices to get zlib compression for TLS. 13437 13438 *Richard Levitte* 13439 13440 * Changes to Kerberos SSL for RFC 2712 compliance: 13441 1. Implemented real KerberosWrapper, instead of just using 13442 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13443 2. Implemented optional authenticator field of KerberosWrapper. 13444 13445 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13446 and authenticator structs; see crypto/krb5/. 13447 13448 Generalized Kerberos calls to support multiple Kerberos libraries. 13449 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13450 via Richard Levitte* 13451 13452 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13453 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13454 values for each of the key sizes rather than having just 13455 parameters (and 'speed' generating keys each time). 13456 13457 *Geoff Thorpe* 13458 13459 * Speed up EVP routines. 13460 Before: 13461crypt 13462pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13463s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13464s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13465s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13466crypt 13467s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13468s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13469s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13470 After: 13471crypt 13472s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13473crypt 13474s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13475 13476 *Ben Laurie* 13477 13478 * Added the OS2-EMX target. 13479 13480 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13481 13482 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13483 New functions to support `NCONF` routines in extension code. 13484 New function `CONF_set_nconf()` 13485 to allow functions which take an `NCONF` to also handle the old `LHASH` 13486 structure: this means that the old `CONF` compatible routines can be 13487 retained (in particular w.rt. extensions) without having to duplicate the 13488 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13489 13490 *Steve Henson* 13491 13492 * Enhance the general user interface with mechanisms for inner control 13493 and with possibilities to have yes/no kind of prompts. 13494 13495 *Richard Levitte* 13496 13497 * Change all calls to low-level digest routines in the library and 13498 applications to use EVP. Add missing calls to HMAC_cleanup() and 13499 don't assume HMAC_CTX can be copied using memcpy(). 13500 13501 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13502 13503 * Add the possibility to control engines through control names but with 13504 arbitrary arguments instead of just a string. 13505 Change the key loaders to take a UI_METHOD instead of a callback 13506 function pointer. NOTE: this breaks binary compatibility with earlier 13507 versions of OpenSSL [engine]. 13508 Adapt the nCipher code for these new conditions and add a card insertion 13509 callback. 13510 13511 *Richard Levitte* 13512 13513 * Enhance the general user interface with mechanisms to better support 13514 dialog box interfaces, application-defined prompts, the possibility 13515 to use defaults (for example default passwords from somewhere else) 13516 and interrupts/cancellations. 13517 13518 *Richard Levitte* 13519 13520 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13521 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13522 13523 *Steve Henson* 13524 13525 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13526 tidy up some unnecessarily weird code in 'sk_new()'). 13527 13528 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13529 13530 * Change the key loading routines for ENGINEs to use the same kind 13531 callback (pem_password_cb) as all other routines that need this 13532 kind of callback. 13533 13534 *Richard Levitte* 13535 13536 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13537 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13538 than this minimum value is recommended. 13539 13540 *Lutz Jaenicke* 13541 13542 * New random seeder for OpenVMS, using the system process statistics 13543 that are easily reachable. 13544 13545 *Richard Levitte* 13546 13547 * Windows apparently can't transparently handle global 13548 variables defined in DLLs. Initialisations such as: 13549 13550 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13551 13552 won't compile. This is used by the any applications that need to 13553 declare their own ASN1 modules. This was fixed by adding the option 13554 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13555 needed for static libraries under Win32. 13556 13557 *Steve Henson* 13558 13559 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13560 setting of purpose and trust fields. New X509_STORE trust and 13561 purpose functions and tidy up setting in other SSL functions. 13562 13563 *Steve Henson* 13564 13565 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13566 structure. These are inherited by X509_STORE_CTX when it is 13567 initialised. This allows various defaults to be set in the 13568 X509_STORE structure (such as flags for CRL checking and custom 13569 purpose or trust settings) for functions which only use X509_STORE_CTX 13570 internally such as S/MIME. 13571 13572 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13573 trust settings if they are not set in X509_STORE. This allows X509_STORE 13574 purposes and trust (in S/MIME for example) to override any set by default. 13575 13576 Add command line options for CRL checking to smime, s_client and s_server 13577 applications. 13578 13579 *Steve Henson* 13580 13581 * Initial CRL based revocation checking. If the CRL checking flag(s) 13582 are set then the CRL is looked up in the X509_STORE structure and 13583 its validity and signature checked, then if the certificate is found 13584 in the CRL the verify fails with a revoked error. 13585 13586 Various new CRL related callbacks added to X509_STORE_CTX structure. 13587 13588 Command line options added to 'verify' application to support this. 13589 13590 This needs some additional work, such as being able to handle multiple 13591 CRLs with different times, extension based lookup (rather than just 13592 by subject name) and ultimately more complete V2 CRL extension 13593 handling. 13594 13595 *Steve Henson* 13596 13597 * Add a general user interface API (crypto/ui/). This is designed 13598 to replace things like des_read_password and friends (backward 13599 compatibility functions using this new API are provided). 13600 The purpose is to remove prompting functions from the DES code 13601 section as well as provide for prompting through dialog boxes in 13602 a window system and the like. 13603 13604 *Richard Levitte* 13605 13606 * Add "ex_data" support to ENGINE so implementations can add state at a 13607 per-structure level rather than having to store it globally. 13608 13609 *Geoff* 13610 13611 * Make it possible for ENGINE structures to be copied when retrieved by 13612 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13613 This causes the "original" ENGINE structure to act like a template, 13614 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13615 operational state can be localised to each ENGINE structure, despite the 13616 fact they all share the same "methods". New ENGINE structures returned in 13617 this case have no functional references and the return value is the single 13618 structural reference. This matches the single structural reference returned 13619 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13620 ENGINE structure. 13621 13622 *Geoff* 13623 13624 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13625 needs to match any other type at all we need to manually clear the 13626 tag cache. 13627 13628 *Steve Henson* 13629 13630 * Changes to the "openssl engine" utility to include; 13631 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13632 about an ENGINE's available control commands. 13633 - executing control commands from command line arguments using the 13634 '-pre' and '-post' switches. '-post' is only used if '-t' is 13635 specified and the ENGINE is successfully initialised. The syntax for 13636 the individual commands are colon-separated, for example; 13637 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13638 13639 *Geoff* 13640 13641 * New dynamic control command support for ENGINEs. ENGINEs can now 13642 declare their own commands (numbers), names (strings), descriptions, 13643 and input types for run-time discovery by calling applications. A 13644 subset of these commands are implicitly classed as "executable" 13645 depending on their input type, and only these can be invoked through 13646 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13647 can be based on user input, config files, etc). The distinction is 13648 that "executable" commands cannot return anything other than a boolean 13649 result and can only support numeric or string input, whereas some 13650 discoverable commands may only be for direct use through 13651 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13652 pointers, or other custom uses. The "executable" commands are to 13653 support parameterisations of ENGINE behaviour that can be 13654 unambiguously defined by ENGINEs and used consistently across any 13655 OpenSSL-based application. Commands have been added to all the 13656 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13657 control over shared-library paths without source code alterations. 13658 13659 *Geoff* 13660 13661 * Changed all ENGINE implementations to dynamically allocate their 13662 ENGINEs rather than declaring them statically. Apart from this being 13663 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13664 this also allows the implementations to compile without using the 13665 internal engine_int.h header. 13666 13667 *Geoff* 13668 13669 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13670 'const' value. Any code that should be able to modify a RAND_METHOD 13671 should already have non-const pointers to it (ie. they should only 13672 modify their own ones). 13673 13674 *Geoff* 13675 13676 * Made a variety of little tweaks to the ENGINE code. 13677 - "atalla" and "ubsec" string definitions were moved from header files 13678 to C code. "nuron" string definitions were placed in variables 13679 rather than hard-coded - allowing parameterisation of these values 13680 later on via ctrl() commands. 13681 - Removed unused "#if 0"'d code. 13682 - Fixed engine list iteration code so it uses ENGINE_free() to release 13683 structural references. 13684 - Constified the RAND_METHOD element of ENGINE structures. 13685 - Constified various get/set functions as appropriate and added 13686 missing functions (including a catch-all ENGINE_cpy that duplicates 13687 all ENGINE values onto a new ENGINE except reference counts/state). 13688 - Removed NULL parameter checks in get/set functions. Setting a method 13689 or function to NULL is a way of cancelling out a previously set 13690 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13691 and doesn't justify the extra error symbols and code. 13692 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13693 flags from engine_int.h to engine.h. 13694 - Changed prototypes for ENGINE handler functions (init(), finish(), 13695 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13696 13697 *Geoff* 13698 13699 * Implement binary inversion algorithm for BN_mod_inverse in addition 13700 to the algorithm using long division. The binary algorithm can be 13701 used only if the modulus is odd. On 32-bit systems, it is faster 13702 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13703 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13704 up to 450 bits. In 64-bit environments, the binary algorithm 13705 appears to be advantageous for much longer moduli; here we use it 13706 for moduli up to 2048 bits. 13707 13708 *Bodo Moeller* 13709 13710 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13711 could not support the combine flag in choice fields. 13712 13713 *Steve Henson* 13714 13715 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13716 extensions from a certificate request to the certificate. 13717 13718 *Steve Henson* 13719 13720 * Allow multiple 'certopt' and 'nameopt' options to be separated 13721 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13722 file: this allows the display of the certificate about to be 13723 signed to be customised, to allow certain fields to be included 13724 or excluded and extension details. The old system didn't display 13725 multicharacter strings properly, omitted fields not in the policy 13726 and couldn't display additional details such as extensions. 13727 13728 *Steve Henson* 13729 13730 * Function EC_POINTs_mul for multiple scalar multiplication 13731 of an arbitrary number of elliptic curve points 13732 \sum scalars[i]*points[i], 13733 optionally including the generator defined for the EC_GROUP: 13734 scalar*generator + \sum scalars[i]*points[i]. 13735 13736 EC_POINT_mul is a simple wrapper function for the typical case 13737 that the point list has just one item (besides the optional 13738 generator). 13739 13740 *Bodo Moeller* 13741 13742 * First EC_METHODs for curves over GF(p): 13743 13744 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13745 operations and provides various method functions that can also 13746 operate with faster implementations of modular arithmetic. 13747 13748 EC_GFp_mont_method() reuses most functions that are part of 13749 EC_GFp_simple_method, but uses Montgomery arithmetic. 13750 13751 *Bodo Moeller; point addition and point doubling 13752 implementation directly derived from source code provided by 13753 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13754 13755 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13756 crypto/ec/ec_lib.c): 13757 13758 Curves are EC_GROUP objects (with an optional group generator) 13759 based on EC_METHODs that are built into the library. 13760 13761 Points are EC_POINT objects based on EC_GROUP objects. 13762 13763 Most of the framework would be able to handle curves over arbitrary 13764 finite fields, but as there are no obvious types for fields other 13765 than GF(p), some functions are limited to that for now. 13766 13767 *Bodo Moeller* 13768 13769 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13770 that the file contains a complete HTTP response. 13771 13772 *Richard Levitte* 13773 13774 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13775 change the def and num file printf format specifier from "%-40sXXX" 13776 to "%-39s XXX". The latter will always guarantee a space after the 13777 field while the former will cause them to run together if the field 13778 is 40 of more characters long. 13779 13780 *Steve Henson* 13781 13782 * Constify the cipher and digest 'method' functions and structures 13783 and modify related functions to take constant EVP_MD and EVP_CIPHER 13784 pointers. 13785 13786 *Steve Henson* 13787 13788 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13789 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13790 13791 *Bodo Moeller* 13792 13793 * Modify `EVP_Digest*()` routines so they now return values. Although the 13794 internal software routines can never fail additional hardware versions 13795 might. 13796 13797 *Steve Henson* 13798 13799 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13800 13801 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13802 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13803 13804 ASN1 error codes 13805 ERR_R_NESTED_ASN1_ERROR 13806 ... 13807 ERR_R_MISSING_ASN1_EOS 13808 were 4 .. 9, conflicting with 13809 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13810 ... 13811 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13812 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13813 13814 Add new error code 'ERR_R_INTERNAL_ERROR'. 13815 13816 *Bodo Moeller* 13817 13818 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13819 suffices. 13820 13821 *Bodo Moeller* 13822 13823 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13824 sets the subject name for a new request or supersedes the 13825 subject name in a given request. Formats that can be parsed are 13826 'CN=Some Name, OU=myOU, C=IT' 13827 and 13828 'CN=Some Name/OU=myOU/C=IT'. 13829 13830 Add options '-batch' and '-verbose' to 'openssl req'. 13831 13832 *Massimiliano Pala <madwolf@hackmasters.net>* 13833 13834 * Introduce the possibility to access global variables through 13835 functions on platform were that's the best way to handle exporting 13836 global variables in shared libraries. To enable this functionality, 13837 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13838 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13839 is normally done by Configure or something similar). 13840 13841 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13842 in the source file (foo.c) like this: 13843 13844 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13845 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13846 13847 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13848 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13849 13850 OPENSSL_DECLARE_GLOBAL(int,foo); 13851 #define foo OPENSSL_GLOBAL_REF(foo) 13852 OPENSSL_DECLARE_GLOBAL(double,bar); 13853 #define bar OPENSSL_GLOBAL_REF(bar) 13854 13855 The #defines are very important, and therefore so is including the 13856 header file everywhere where the defined globals are used. 13857 13858 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13859 of ASN.1 items, but that structure is a bit different. 13860 13861 The largest change is in util/mkdef.pl which has been enhanced with 13862 better and easier to understand logic to choose which symbols should 13863 go into the Windows .def files as well as a number of fixes and code 13864 cleanup (among others, algorithm keywords are now sorted 13865 lexicographically to avoid constant rewrites). 13866 13867 *Richard Levitte* 13868 13869 * In BN_div() keep a copy of the sign of 'num' before writing the 13870 result to 'rm' because if rm==num the value will be overwritten 13871 and produce the wrong result if 'num' is negative: this caused 13872 problems with BN_mod() and BN_nnmod(). 13873 13874 *Steve Henson* 13875 13876 * Function OCSP_request_verify(). This checks the signature on an 13877 OCSP request and verifies the signer certificate. The signer 13878 certificate is just checked for a generic purpose and OCSP request 13879 trust settings. 13880 13881 *Steve Henson* 13882 13883 * Add OCSP_check_validity() function to check the validity of OCSP 13884 responses. OCSP responses are prepared in real time and may only 13885 be a few seconds old. Simply checking that the current time lies 13886 between thisUpdate and nextUpdate max reject otherwise valid responses 13887 caused by either OCSP responder or client clock inaccuracy. Instead 13888 we allow thisUpdate and nextUpdate to fall within a certain period of 13889 the current time. The age of the response can also optionally be 13890 checked. Two new options -validity_period and -status_age added to 13891 ocsp utility. 13892 13893 *Steve Henson* 13894 13895 * If signature or public key algorithm is unrecognized print out its 13896 OID rather that just UNKNOWN. 13897 13898 *Steve Henson* 13899 13900 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13901 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13902 ID to be generated from the issuer certificate alone which can then be 13903 passed to OCSP_id_issuer_cmp(). 13904 13905 *Steve Henson* 13906 13907 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13908 ASN1 modules to export functions returning ASN1_ITEM pointers 13909 instead of the ASN1_ITEM structures themselves. This adds several 13910 new macros which allow the underlying ASN1 function/structure to 13911 be accessed transparently. As a result code should not use ASN1_ITEM 13912 references directly (such as &X509_it) but instead use the relevant 13913 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13914 use of the new ASN1 code on platforms where exporting structures 13915 is problematical (for example in shared libraries) but exporting 13916 functions returning pointers to structures is not. 13917 13918 *Steve Henson* 13919 13920 * Add support for overriding the generation of SSL/TLS session IDs. 13921 These callbacks can be registered either in an SSL_CTX or per SSL. 13922 The purpose of this is to allow applications to control, if they wish, 13923 the arbitrary values chosen for use as session IDs, particularly as it 13924 can be useful for session caching in multiple-server environments. A 13925 command-line switch for testing this (and any client code that wishes 13926 to use such a feature) has been added to "s_server". 13927 13928 *Geoff Thorpe, Lutz Jaenicke* 13929 13930 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13931 of the form `#if defined(...) || defined(...) || ...` and 13932 `#if !defined(...) && !defined(...) && ...`. This also avoids 13933 the growing number of special cases it was previously handling. 13934 13935 *Richard Levitte* 13936 13937 * Make all configuration macros available for application by making 13938 sure they are available in opensslconf.h, by giving them names starting 13939 with `OPENSSL_` to avoid conflicts with other packages and by making 13940 sure e_os2.h will cover all platform-specific cases together with 13941 opensslconf.h. 13942 Additionally, it is now possible to define configuration/platform- 13943 specific names (called "system identities"). In the C code, these 13944 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13945 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13946 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13947 what is available. 13948 13949 *Richard Levitte* 13950 13951 * New option -set_serial to 'req' and 'x509' this allows the serial 13952 number to use to be specified on the command line. Previously self 13953 signed certificates were hard coded with serial number 0 and the 13954 CA options of 'x509' had to use a serial number in a file which was 13955 auto incremented. 13956 13957 *Steve Henson* 13958 13959 * New options to 'ca' utility to support V2 CRL entry extensions. 13960 Currently CRL reason, invalidity date and hold instruction are 13961 supported. Add new CRL extensions to V3 code and some new objects. 13962 13963 *Steve Henson* 13964 13965 * New function EVP_CIPHER_CTX_set_padding() this is used to 13966 disable standard block padding (aka PKCS#5 padding) in the EVP 13967 API, which was previously mandatory. This means that the data is 13968 not padded in any way and so the total length much be a multiple 13969 of the block size, otherwise an error occurs. 13970 13971 *Steve Henson* 13972 13973 * Initial (incomplete) OCSP SSL support. 13974 13975 *Steve Henson* 13976 13977 * New function OCSP_parse_url(). This splits up a URL into its host, 13978 port and path components: primarily to parse OCSP URLs. New -url 13979 option to ocsp utility. 13980 13981 *Steve Henson* 13982 13983 * New nonce behavior. The return value of OCSP_check_nonce() now 13984 reflects the various checks performed. Applications can decide 13985 whether to tolerate certain situations such as an absent nonce 13986 in a response when one was present in a request: the ocsp application 13987 just prints out a warning. New function OCSP_add1_basic_nonce() 13988 this is to allow responders to include a nonce in a response even if 13989 the request is nonce-less. 13990 13991 *Steve Henson* 13992 13993 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13994 skipped when using openssl x509 multiple times on a single input file, 13995 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13996 13997 *Bodo Moeller* 13998 13999 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 14000 set string type: to handle setting ASN1_TIME structures. Fix ca 14001 utility to correctly initialize revocation date of CRLs. 14002 14003 *Steve Henson* 14004 14005 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 14006 the clients preferred ciphersuites and rather use its own preferences. 14007 Should help to work around M$ SGC (Server Gated Cryptography) bug in 14008 Internet Explorer by ensuring unchanged hash method during stepup. 14009 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 14010 14011 *Lutz Jaenicke* 14012 14013 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 14014 to aes and add a new 'exist' option to print out symbols that don't 14015 appear to exist. 14016 14017 *Steve Henson* 14018 14019 * Additional options to ocsp utility to allow flags to be set and 14020 additional certificates supplied. 14021 14022 *Steve Henson* 14023 14024 * Add the option -VAfile to 'openssl ocsp', so the user can give the 14025 OCSP client a number of certificate to only verify the response 14026 signature against. 14027 14028 *Richard Levitte* 14029 14030 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 14031 handle the new API. Currently only ECB, CBC modes supported. Add new 14032 AES OIDs. 14033 14034 Add TLS AES ciphersuites as described in RFC3268, "Advanced 14035 Encryption Standard (AES) Ciphersuites for Transport Layer 14036 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 14037 not enabled by default and were not part of the "ALL" ciphersuite 14038 alias because they were not yet official; they could be 14039 explicitly requested by specifying the "AESdraft" ciphersuite 14040 group alias. In the final release of OpenSSL 0.9.7, the group 14041 alias is called "AES" and is part of "ALL".) 14042 14043 *Ben Laurie, Steve Henson, Bodo Moeller* 14044 14045 * New function OCSP_copy_nonce() to copy nonce value (if present) from 14046 request to response. 14047 14048 *Steve Henson* 14049 14050 * Functions for OCSP responders. OCSP_request_onereq_count(), 14051 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 14052 extract information from a certificate request. OCSP_response_create() 14053 creates a response and optionally adds a basic response structure. 14054 OCSP_basic_add1_status() adds a complete single response to a basic 14055 response and returns the OCSP_SINGLERESP structure just added (to allow 14056 extensions to be included for example). OCSP_basic_add1_cert() adds a 14057 certificate to a basic response and OCSP_basic_sign() signs a basic 14058 response with various flags. New helper functions ASN1_TIME_check() 14059 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 14060 (converts ASN1_TIME to GeneralizedTime). 14061 14062 *Steve Henson* 14063 14064 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 14065 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 14066 structure from a certificate. X509_pubkey_digest() digests the public_key 14067 contents: this is used in various key identifiers. 14068 14069 *Steve Henson* 14070 14071 * Make sk_sort() tolerate a NULL argument. 14072 14073 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 14074 14075 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 14076 passed by the function are trusted implicitly. If any of them signed the 14077 response then it is assumed to be valid and is not verified. 14078 14079 *Steve Henson* 14080 14081 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 14082 to data. This was previously part of the PKCS7 ASN1 code. This 14083 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 14084 *Steve Henson, reported by Kenneth R. Robinette 14085 <support@securenetterm.com>* 14086 14087 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 14088 routines: without these tracing memory leaks is very painful. 14089 Fix leaks in PKCS12 and PKCS7 routines. 14090 14091 *Steve Henson* 14092 14093 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 14094 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 14095 effectively meant GeneralizedTime would never be used. Now it 14096 is initialised to -1 but X509_time_adj() now has to check the value 14097 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 14098 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 14099 *Steve Henson, reported by Kenneth R. Robinette 14100 <support@securenetterm.com>* 14101 14102 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 14103 result in a zero length in the ASN1_INTEGER structure which was 14104 not consistent with the structure when d2i_ASN1_INTEGER() was used 14105 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 14106 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 14107 where it did not print out a minus for negative ASN1_INTEGER. 14108 14109 *Steve Henson* 14110 14111 * Add summary printout to ocsp utility. The various functions which 14112 convert status values to strings have been renamed to: 14113 OCSP_response_status_str(), OCSP_cert_status_str() and 14114 OCSP_crl_reason_str() and are no longer static. New options 14115 to verify nonce values and to disable verification. OCSP response 14116 printout format cleaned up. 14117 14118 *Steve Henson* 14119 14120 * Add additional OCSP certificate checks. These are those specified 14121 in RFC2560. This consists of two separate checks: the CA of the 14122 certificate being checked must either be the OCSP signer certificate 14123 or the issuer of the OCSP signer certificate. In the latter case the 14124 OCSP signer certificate must contain the OCSP signing extended key 14125 usage. This check is performed by attempting to match the OCSP 14126 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 14127 in the OCSP_CERTID structures of the response. 14128 14129 *Steve Henson* 14130 14131 * Initial OCSP certificate verification added to OCSP_basic_verify() 14132 and related routines. This uses the standard OpenSSL certificate 14133 verify routines to perform initial checks (just CA validity) and 14134 to obtain the certificate chain. Then additional checks will be 14135 performed on the chain. Currently the root CA is checked to see 14136 if it is explicitly trusted for OCSP signing. This is used to set 14137 a root CA as a global signing root: that is any certificate that 14138 chains to that CA is an acceptable OCSP signing certificate. 14139 14140 *Steve Henson* 14141 14142 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 14143 extensions from a separate configuration file. 14144 As when reading extensions from the main configuration file, 14145 the '-extensions ...' option may be used for specifying the 14146 section to use. 14147 14148 *Massimiliano Pala <madwolf@comune.modena.it>* 14149 14150 * New OCSP utility. Allows OCSP requests to be generated or 14151 read. The request can be sent to a responder and the output 14152 parsed, outputted or printed in text form. Not complete yet: 14153 still needs to check the OCSP response validity. 14154 14155 *Steve Henson* 14156 14157 * New subcommands for 'openssl ca': 14158 `openssl ca -status <serial>` prints the status of the cert with 14159 the given serial number (according to the index file). 14160 `openssl ca -updatedb` updates the expiry status of certificates 14161 in the index file. 14162 14163 *Massimiliano Pala <madwolf@comune.modena.it>* 14164 14165 * New '-newreq-nodes' command option to CA.pl. This is like 14166 '-newreq', but calls 'openssl req' with the '-nodes' option 14167 so that the resulting key is not encrypted. 14168 14169 *Damien Miller <djm@mindrot.org>* 14170 14171 * New configuration for the GNU Hurd. 14172 14173 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 14174 14175 * Initial code to implement OCSP basic response verify. This 14176 is currently incomplete. Currently just finds the signer's 14177 certificate and verifies the signature on the response. 14178 14179 *Steve Henson* 14180 14181 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 14182 value of OPENSSLDIR. This is available via the new '-d' option 14183 to 'openssl version', and is also included in 'openssl version -a'. 14184 14185 *Bodo Moeller* 14186 14187 * Allowing defining memory allocation callbacks that will be given 14188 file name and line number information in additional arguments 14189 (a `const char*` and an int). The basic functionality remains, as 14190 well as the original possibility to just replace malloc(), 14191 realloc() and free() by functions that do not know about these 14192 additional arguments. To register and find out the current 14193 settings for extended allocation functions, the following 14194 functions are provided: 14195 14196 CRYPTO_set_mem_ex_functions 14197 CRYPTO_set_locked_mem_ex_functions 14198 CRYPTO_get_mem_ex_functions 14199 CRYPTO_get_locked_mem_ex_functions 14200 14201 These work the same way as CRYPTO_set_mem_functions and friends. 14202 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 14203 extended allocation function is enabled. 14204 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 14205 a conventional allocation function is enabled. 14206 14207 *Richard Levitte, Bodo Moeller* 14208 14209 * Finish off removing the remaining LHASH function pointer casts. 14210 There should no longer be any prototype-casting required when using 14211 the LHASH abstraction, and any casts that remain are "bugs". See 14212 the callback types and macros at the head of lhash.h for details 14213 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 14214 14215 *Geoff Thorpe* 14216 14217 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 14218 If /dev/[u]random devices are not available or do not return enough 14219 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 14220 be queried. 14221 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 14222 /etc/entropy will be queried once each in this sequence, querying stops 14223 when enough entropy was collected without querying more sockets. 14224 14225 *Lutz Jaenicke* 14226 14227 * Change the Unix RAND_poll() variant to be able to poll several 14228 random devices, as specified by DEVRANDOM, until a sufficient amount 14229 of data has been collected. We spend at most 10 ms on each file 14230 (select timeout) and read in non-blocking mode. DEVRANDOM now 14231 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 14232 (previously it was just the string "/dev/urandom"), so on typical 14233 platforms the 10 ms delay will never occur. 14234 Also separate out the Unix variant to its own file, rand_unix.c. 14235 For VMS, there's a currently-empty rand_vms.c. 14236 14237 *Richard Levitte* 14238 14239 * Move OCSP client related routines to ocsp_cl.c. These 14240 provide utility functions which an application needing 14241 to issue a request to an OCSP responder and analyse the 14242 response will typically need: as opposed to those which an 14243 OCSP responder itself would need which will be added later. 14244 14245 OCSP_request_sign() signs an OCSP request with an API similar 14246 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 14247 response. OCSP_response_get1_basic() extracts basic response 14248 from response. OCSP_resp_find_status(): finds and extracts status 14249 information from an OCSP_CERTID structure (which will be created 14250 when the request structure is built). These are built from lower 14251 level functions which work on OCSP_SINGLERESP structures but 14252 won't normally be used unless the application wishes to examine 14253 extensions in the OCSP response for example. 14254 14255 Replace nonce routines with a pair of functions. 14256 OCSP_request_add1_nonce() adds a nonce value and optionally 14257 generates a random value. OCSP_check_nonce() checks the 14258 validity of the nonce in an OCSP response. 14259 14260 *Steve Henson* 14261 14262 * Change function OCSP_request_add() to OCSP_request_add0_id(). 14263 This doesn't copy the supplied OCSP_CERTID and avoids the 14264 need to free up the newly created id. Change return type 14265 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 14266 This can then be used to add extensions to the request. 14267 Deleted OCSP_request_new(), since most of its functionality 14268 is now in OCSP_REQUEST_new() (and the case insensitive name 14269 clash) apart from the ability to set the request name which 14270 will be added elsewhere. 14271 14272 *Steve Henson* 14273 14274 * Update OCSP API. Remove obsolete extensions argument from 14275 various functions. Extensions are now handled using the new 14276 OCSP extension code. New simple OCSP HTTP function which 14277 can be used to send requests and parse the response. 14278 14279 *Steve Henson* 14280 14281 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 14282 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 14283 uses the special reorder version of SET OF to sort the attributes 14284 and reorder them to match the encoded order. This resolves a long 14285 standing problem: a verify on a PKCS7 structure just after signing 14286 it used to fail because the attribute order did not match the 14287 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 14288 it uses the received order. This is necessary to tolerate some broken 14289 software that does not order SET OF. This is handled by encoding 14290 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 14291 to produce the required SET OF. 14292 14293 *Steve Henson* 14294 14295 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 14296 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 14297 files to get correct declarations of the ASN.1 item variables. 14298 14299 *Richard Levitte* 14300 14301 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 14302 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 14303 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 14304 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 14305 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 14306 ASN1_ITEM and no wrapper functions. 14307 14308 *Steve Henson* 14309 14310 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 14311 replace the old function pointer based I/O routines. Change most of 14312 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 14313 14314 *Steve Henson* 14315 14316 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 14317 lines, recognize more "algorithms" that can be deselected, and make 14318 it complain about algorithm deselection that isn't recognised. 14319 14320 *Richard Levitte* 14321 14322 * New ASN1 functions to handle dup, sign, verify, digest, pack and 14323 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 14324 to use new functions. Add NO_ASN1_OLD which can be set to remove 14325 some old style ASN1 functions: this can be used to determine if old 14326 code will still work when these eventually go away. 14327 14328 *Steve Henson* 14329 14330 * New extension functions for OCSP structures, these follow the 14331 same conventions as certificates and CRLs. 14332 14333 *Steve Henson* 14334 14335 * New function X509V3_add1_i2d(). This automatically encodes and 14336 adds an extension. Its behaviour can be customised with various 14337 flags to append, replace or delete. Various wrappers added for 14338 certificates and CRLs. 14339 14340 *Steve Henson* 14341 14342 * Fix to avoid calling the underlying ASN1 print routine when 14343 an extension cannot be parsed. Correct a typo in the 14344 OCSP_SERVICELOC extension. Tidy up print OCSP format. 14345 14346 *Steve Henson* 14347 14348 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 14349 entries for variables. 14350 14351 *Steve Henson* 14352 14353 * Add functionality to `apps/openssl.c` for detecting locking 14354 problems: As the program is single-threaded, all we have 14355 to do is register a locking callback using an array for 14356 storing which locks are currently held by the program. 14357 14358 *Bodo Moeller* 14359 14360 * Use a lock around the call to CRYPTO_get_ex_new_index() in 14361 SSL_get_ex_data_X509_STORE_idx(), which is used in 14362 ssl_verify_cert_chain() and thus can be called at any time 14363 during TLS/SSL handshakes so that thread-safety is essential. 14364 Unfortunately, the ex_data design is not at all suited 14365 for multi-threaded use, so it probably should be abolished. 14366 14367 *Bodo Moeller* 14368 14369 * Added Broadcom "ubsec" ENGINE to OpenSSL. 14370 14371 *Broadcom, tweaked and integrated by Geoff Thorpe* 14372 14373 * Move common extension printing code to new function 14374 X509V3_print_extensions(). Reorganise OCSP print routines and 14375 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14376 14377 *Steve Henson* 14378 14379 * New function X509_signature_print() to remove duplication in some 14380 print routines. 14381 14382 *Steve Henson* 14383 14384 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14385 set (this was treated exactly the same as SET OF previously). This 14386 is used to reorder the STACK representing the structure to match the 14387 encoding. This will be used to get round a problem where a PKCS7 14388 structure which was signed could not be verified because the STACK 14389 order did not reflect the encoded order. 14390 14391 *Steve Henson* 14392 14393 * Reimplement the OCSP ASN1 module using the new code. 14394 14395 *Steve Henson* 14396 14397 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14398 for its ASN1 operations. The old style function pointers still exist 14399 for now but they will eventually go away. 14400 14401 *Steve Henson* 14402 14403 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14404 completely replaces the old ASN1 functionality with a table driven 14405 encoder and decoder which interprets an ASN1_ITEM structure describing 14406 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14407 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14408 has also been converted to the new form. 14409 14410 *Steve Henson* 14411 14412 * Change BN_mod_exp_recp so that negative moduli are tolerated 14413 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14414 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14415 for negative moduli. 14416 14417 *Bodo Moeller* 14418 14419 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14420 of not touching the result's sign bit. 14421 14422 *Bodo Moeller* 14423 14424 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14425 set. 14426 14427 *Bodo Moeller* 14428 14429 * Changed the LHASH code to use prototypes for callbacks, and created 14430 macros to declare and implement thin (optionally static) functions 14431 that provide type-safety and avoid function pointer casting for the 14432 type-specific callbacks. 14433 14434 *Geoff Thorpe* 14435 14436 * Added Kerberos Cipher Suites to be used with TLS, as written in 14437 RFC 2712. 14438 *Veers Staats <staatsvr@asc.hpc.mil>, 14439 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14440 14441 * Reformat the FAQ so the different questions and answers can be divided 14442 in sections depending on the subject. 14443 14444 *Richard Levitte* 14445 14446 * Have the zlib compression code load ZLIB.DLL dynamically under 14447 Windows. 14448 14449 *Richard Levitte* 14450 14451 * New function BN_mod_sqrt for computing square roots modulo a prime 14452 (using the probabilistic Tonelli-Shanks algorithm unless 14453 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14454 be handled deterministically). 14455 14456 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14457 14458 * Make BN_mod_inverse faster by explicitly handling small quotients 14459 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14460 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14461 14462 *Bodo Moeller* 14463 14464 * New function BN_kronecker. 14465 14466 *Bodo Moeller* 14467 14468 * Fix BN_gcd so that it works on negative inputs; the result is 14469 positive unless both parameters are zero. 14470 Previously something reasonably close to an infinite loop was 14471 possible because numbers could be growing instead of shrinking 14472 in the implementation of Euclid's algorithm. 14473 14474 *Bodo Moeller* 14475 14476 * Fix BN_is_word() and BN_is_one() macros to take into account the 14477 sign of the number in question. 14478 14479 Fix BN_is_word(a,w) to work correctly for w == 0. 14480 14481 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14482 because its test if the absolute value of 'a' equals 'w'. 14483 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14484 it exists mostly for use in the implementations of BN_is_zero(), 14485 BN_is_one(), and BN_is_word(). 14486 14487 *Bodo Moeller* 14488 14489 * New function BN_swap. 14490 14491 *Bodo Moeller* 14492 14493 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14494 the exponentiation functions are more likely to produce reasonable 14495 results on negative inputs. 14496 14497 *Bodo Moeller* 14498 14499 * Change BN_mod_mul so that the result is always non-negative. 14500 Previously, it could be negative if one of the factors was negative; 14501 I don't think anyone really wanted that behaviour. 14502 14503 *Bodo Moeller* 14504 14505 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14506 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14507 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14508 and add new functions: 14509 14510 BN_nnmod 14511 BN_mod_sqr 14512 BN_mod_add 14513 BN_mod_add_quick 14514 BN_mod_sub 14515 BN_mod_sub_quick 14516 BN_mod_lshift1 14517 BN_mod_lshift1_quick 14518 BN_mod_lshift 14519 BN_mod_lshift_quick 14520 14521 These functions always generate non-negative results. 14522 14523 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14524 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14525 14526 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14527 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14528 be reduced modulo `m`. 14529 14530 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14531 14532<!-- 14533 The following entry accidentally appeared in the CHANGES file 14534 distributed with OpenSSL 0.9.7. The modifications described in 14535 it do *not* apply to OpenSSL 0.9.7. 14536 14537 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14538 was actually never needed) and in BN_mul(). The removal in BN_mul() 14539 required a small change in bn_mul_part_recursive() and the addition 14540 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14541 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14542 bn_sub_words() and bn_add_words() except they take arrays with 14543 differing sizes. 14544 14545 *Richard Levitte* 14546--> 14547 14548 * In 'openssl passwd', verify passwords read from the terminal 14549 unless the '-salt' option is used (which usually means that 14550 verification would just waste user's time since the resulting 14551 hash is going to be compared with some given password hash) 14552 or the new '-noverify' option is used. 14553 14554 This is an incompatible change, but it does not affect 14555 non-interactive use of 'openssl passwd' (passwords on the command 14556 line, '-stdin' option, '-in ...' option) and thus should not 14557 cause any problems. 14558 14559 *Bodo Moeller* 14560 14561 * Remove all references to RSAref, since there's no more need for it. 14562 14563 *Richard Levitte* 14564 14565 * Make DSO load along a path given through an environment variable 14566 (SHLIB_PATH) with shl_load(). 14567 14568 *Richard Levitte* 14569 14570 * Constify the ENGINE code as a result of BIGNUM constification. 14571 Also constify the RSA code and most things related to it. In a 14572 few places, most notable in the depth of the ASN.1 code, ugly 14573 casts back to non-const were required (to be solved at a later 14574 time) 14575 14576 *Richard Levitte* 14577 14578 * Make it so the openssl application has all engines loaded by default. 14579 14580 *Richard Levitte* 14581 14582 * Constify the BIGNUM routines a little more. 14583 14584 *Richard Levitte* 14585 14586 * Add the following functions: 14587 14588 ENGINE_load_cswift() 14589 ENGINE_load_chil() 14590 ENGINE_load_atalla() 14591 ENGINE_load_nuron() 14592 ENGINE_load_builtin_engines() 14593 14594 That way, an application can itself choose if external engines that 14595 are built-in in OpenSSL shall ever be used or not. The benefit is 14596 that applications won't have to be linked with libdl or other dso 14597 libraries unless it's really needed. 14598 14599 Changed 'openssl engine' to load all engines on demand. 14600 Changed the engine header files to avoid the duplication of some 14601 declarations (they differed!). 14602 14603 *Richard Levitte* 14604 14605 * 'openssl engine' can now list capabilities. 14606 14607 *Richard Levitte* 14608 14609 * Better error reporting in 'openssl engine'. 14610 14611 *Richard Levitte* 14612 14613 * Never call load_dh_param(NULL) in s_server. 14614 14615 *Bodo Moeller* 14616 14617 * Add engine application. It can currently list engines by name and 14618 identity, and test if they are actually available. 14619 14620 *Richard Levitte* 14621 14622 * Improve RPM specification file by forcing symbolic linking and making 14623 sure the installed documentation is also owned by root.root. 14624 14625 *Damien Miller <djm@mindrot.org>* 14626 14627 * Give the OpenSSL applications more possibilities to make use of 14628 keys (public as well as private) handled by engines. 14629 14630 *Richard Levitte* 14631 14632 * Add OCSP code that comes from CertCo. 14633 14634 *Richard Levitte* 14635 14636 * Add VMS support for the Rijndael code. 14637 14638 *Richard Levitte* 14639 14640 * Added untested support for Nuron crypto accelerator. 14641 14642 *Ben Laurie* 14643 14644 * Add support for external cryptographic devices. This code was 14645 previously distributed separately as the "engine" branch. 14646 14647 *Geoff Thorpe, Richard Levitte* 14648 14649 * Rework the filename-translation in the DSO code. It is now possible to 14650 have far greater control over how a "name" is turned into a filename 14651 depending on the operating environment and any oddities about the 14652 different shared library filenames on each system. 14653 14654 *Geoff Thorpe* 14655 14656 * Support threads on FreeBSD-elf in Configure. 14657 14658 *Richard Levitte* 14659 14660 * Fix for SHA1 assembly problem with MASM: it produces 14661 warnings about corrupt line number information when assembling 14662 with debugging information. This is caused by the overlapping 14663 of two sections. 14664 14665 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14666 14667 * NCONF changes. 14668 NCONF_get_number() has no error checking at all. As a replacement, 14669 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14670 promoted strongly. The old NCONF_get_number is kept around for 14671 binary backward compatibility. 14672 Make it possible for methods to load from something other than a BIO, 14673 by providing a function pointer that is given a name instead of a BIO. 14674 For example, this could be used to load configuration data from an 14675 LDAP server. 14676 14677 *Richard Levitte* 14678 14679 * Fix for non blocking accept BIOs. Added new I/O special reason 14680 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14681 with non blocking I/O was not possible because no retry code was 14682 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14683 this case. 14684 14685 *Steve Henson* 14686 14687 * Added the beginnings of Rijndael support. 14688 14689 *Ben Laurie* 14690 14691 * Fix for bug in DirectoryString mask setting. Add support for 14692 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14693 to allow certificate printing to more controllable, additional 14694 'certopt' option to 'x509' to allow new printing options to be 14695 set. 14696 14697 *Steve Henson* 14698 14699 * Clean old EAY MD5 hack from e_os.h. 14700 14701 *Richard Levitte* 14702 14703### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14704 14705 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14706 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14707 14708 *Joe Orton, Steve Henson* 14709 14710### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14711 14712 * Fix additional bug revealed by the NISCC test suite: 14713 14714 Stop bug triggering large recursion when presented with 14715 certain ASN.1 tags ([CVE-2003-0851]) 14716 14717 *Steve Henson* 14718 14719### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14720 14721 * Fix various bugs revealed by running the NISCC test suite: 14722 14723 Stop out of bounds reads in the ASN1 code when presented with 14724 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14725 14726 If verify callback ignores invalid public key errors don't try to check 14727 certificate signature with the NULL public key. 14728 14729 *Steve Henson* 14730 14731 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14732 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14733 specifications. 14734 14735 *Steve Henson* 14736 14737 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14738 extra data after the compression methods not only for TLS 1.0 14739 but also for SSL 3.0 (as required by the specification). 14740 14741 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14742 14743 * Change X509_certificate_type() to mark the key as exported/exportable 14744 when it's 512 *bits* long, not 512 bytes. 14745 14746 *Richard Levitte* 14747 14748### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14749 14750 * Countermeasure against the Klima-Pokorny-Rosa extension of 14751 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14752 a protocol version number mismatch like a decryption error 14753 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14754 14755 *Bodo Moeller* 14756 14757 * Turn on RSA blinding by default in the default implementation 14758 to avoid a timing attack. Applications that don't want it can call 14759 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14760 They would be ill-advised to do so in most cases. 14761 14762 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14763 14764 * Change RSA blinding code so that it works when the PRNG is not 14765 seeded (in this case, the secret RSA exponent is abused as 14766 an unpredictable seed -- if it is not unpredictable, there 14767 is no point in blinding anyway). Make RSA blinding thread-safe 14768 by remembering the creator's thread ID in rsa->blinding and 14769 having all other threads use local one-time blinding factors 14770 (this requires more computation than sharing rsa->blinding, but 14771 avoids excessive locking; and if an RSA object is not shared 14772 between threads, blinding will still be very fast). 14773 14774 *Bodo Moeller* 14775 14776### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14777 14778 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14779 via timing by performing a MAC computation even if incorrect 14780 block cipher padding has been found. This is a countermeasure 14781 against active attacks where the attacker has to distinguish 14782 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14783 14784 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14785 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14786 Martin Vuagnoux (EPFL, Ilion)* 14787 14788### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14789 14790 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14791 memory from its contents. This is done with a counter that will 14792 place alternating values in each byte. This can be used to solve 14793 two issues: 1) the removal of calls to memset() by highly optimizing 14794 compilers, and 2) cleansing with other values than 0, since those can 14795 be read through on certain media, for example a swap space on disk. 14796 14797 *Geoff Thorpe* 14798 14799 * Bugfix: client side session caching did not work with external caching, 14800 because the session->cipher setting was not restored when reloading 14801 from the external cache. This problem was masked, when 14802 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14803 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14804 14805 *Lutz Jaenicke* 14806 14807 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14808 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14809 14810 *Zeev Lieber <zeev-l@yahoo.com>* 14811 14812 * Undo an undocumented change introduced in 0.9.6e which caused 14813 repeated calls to OpenSSL_add_all_ciphers() and 14814 OpenSSL_add_all_digests() to be ignored, even after calling 14815 EVP_cleanup(). 14816 14817 *Richard Levitte* 14818 14819 * Change the default configuration reader to deal with last line not 14820 being properly terminated. 14821 14822 *Richard Levitte* 14823 14824 * Change X509_NAME_cmp() so it applies the special rules on handling 14825 DN values that are of type PrintableString, as well as RDNs of type 14826 emailAddress where the value has the type ia5String. 14827 14828 *stefank@valicert.com via Richard Levitte* 14829 14830 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14831 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14832 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14833 the bitwise-OR of the two for use by the majority of applications 14834 wanting this behaviour, and update the docs. The documented 14835 behaviour and actual behaviour were inconsistent and had been 14836 changing anyway, so this is more a bug-fix than a behavioural 14837 change. 14838 14839 *Geoff Thorpe, diagnosed by Nadav Har'El* 14840 14841 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14842 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14843 14844 *Bodo Moeller* 14845 14846 * Fix initialization code race conditions in 14847 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14848 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14849 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14850 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14851 ssl2_get_cipher_by_char(), 14852 ssl3_get_cipher_by_char(). 14853 14854 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14855 14856 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14857 the cached sessions are flushed, as the remove_cb() might use ex_data 14858 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14859 (see [openssl.org #212]). 14860 14861 *Geoff Thorpe, Lutz Jaenicke* 14862 14863 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14864 length, instead of the encoding length to d2i_ASN1_OBJECT. 14865 14866 *Steve Henson* 14867 14868### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14869 14870 * [In 0.9.6g-engine release:] 14871 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14872 14873 *Lynn Gazis <lgazis@rainbow.com>* 14874 14875### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14876 14877 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14878 and get fix the header length calculation. 14879 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14880 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14881 14882 * Use proper error handling instead of 'assertions' in buffer 14883 overflow checks added in 0.9.6e. This prevents DoS (the 14884 assertions could call abort()). 14885 14886 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14887 14888### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14889 14890 * Add various sanity checks to asn1_get_length() to reject 14891 the ASN1 length bytes if they exceed sizeof(long), will appear 14892 negative or the content length exceeds the length of the 14893 supplied buffer. 14894 14895 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14896 14897 * Fix cipher selection routines: ciphers without encryption had no flags 14898 for the cipher strength set and where therefore not handled correctly 14899 by the selection routines (PR #130). 14900 14901 *Lutz Jaenicke* 14902 14903 * Fix EVP_dsa_sha macro. 14904 14905 *Nils Larsch* 14906 14907 * New option 14908 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14909 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14910 that was added in OpenSSL 0.9.6d. 14911 14912 As the countermeasure turned out to be incompatible with some 14913 broken SSL implementations, the new option is part of SSL_OP_ALL. 14914 SSL_OP_ALL is usually employed when compatibility with weird SSL 14915 implementations is desired (e.g. '-bugs' option to 's_client' and 14916 's_server'), so the new option is automatically set in many 14917 applications. 14918 14919 *Bodo Moeller* 14920 14921 * Changes in security patch: 14922 14923 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14924 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14925 Air Force Materiel Command, USAF, under agreement number 14926 F30602-01-2-0537. 14927 14928 * Add various sanity checks to asn1_get_length() to reject 14929 the ASN1 length bytes if they exceed sizeof(long), will appear 14930 negative or the content length exceeds the length of the 14931 supplied buffer. ([CVE-2002-0659]) 14932 14933 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14934 14935 * Assertions for various potential buffer overflows, not known to 14936 happen in practice. 14937 14938 *Ben Laurie (CHATS)* 14939 14940 * Various temporary buffers to hold ASCII versions of integers were 14941 too small for 64 bit platforms. ([CVE-2002-0655]) 14942 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14943 14944 * Remote buffer overflow in SSL3 protocol - an attacker could 14945 supply an oversized session ID to a client. ([CVE-2002-0656]) 14946 14947 *Ben Laurie (CHATS)* 14948 14949 * Remote buffer overflow in SSL2 protocol - an attacker could 14950 supply an oversized client master key. ([CVE-2002-0656]) 14951 14952 *Ben Laurie (CHATS)* 14953 14954### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14955 14956 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14957 encoded as NULL) with id-dsa-with-sha1. 14958 14959 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14960 14961 * Check various `X509_...()` return values in `apps/req.c`. 14962 14963 *Nils Larsch <nla@trustcenter.de>* 14964 14965 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14966 an end-of-file condition would erroneously be flagged, when the CRLF 14967 was just at the end of a processed block. The bug was discovered when 14968 processing data through a buffering memory BIO handing the data to a 14969 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14970 <ptsekov@syntrex.com> and Nedelcho Stanev. 14971 14972 *Lutz Jaenicke* 14973 14974 * Implement a countermeasure against a vulnerability recently found 14975 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14976 before application data chunks to avoid the use of known IVs 14977 with data potentially chosen by the attacker. 14978 14979 *Bodo Moeller* 14980 14981 * Fix length checks in ssl3_get_client_hello(). 14982 14983 *Bodo Moeller* 14984 14985 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14986 to prevent ssl3_read_internal() from incorrectly assuming that 14987 ssl3_read_bytes() found application data while handshake 14988 processing was enabled when in fact s->s3->in_read_app_data was 14989 merely automatically cleared during the initial handshake. 14990 14991 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14992 14993 * Fix object definitions for Private and Enterprise: they were not 14994 recognized in their shortname (=lowercase) representation. Extend 14995 obj_dat.pl to issue an error when using undefined keywords instead 14996 of silently ignoring the problem (Svenning Sorensen 14997 <sss@sss.dnsalias.net>). 14998 14999 *Lutz Jaenicke* 15000 15001 * Fix DH_generate_parameters() so that it works for 'non-standard' 15002 generators, i.e. generators other than 2 and 5. (Previously, the 15003 code did not properly initialise the 'add' and 'rem' values to 15004 BN_generate_prime().) 15005 15006 In the new general case, we do not insist that 'generator' is 15007 actually a primitive root: This requirement is rather pointless; 15008 a generator of the order-q subgroup is just as good, if not 15009 better. 15010 15011 *Bodo Moeller* 15012 15013 * Map new X509 verification errors to alerts. Discovered and submitted by 15014 Tom Wu <tom@arcot.com>. 15015 15016 *Lutz Jaenicke* 15017 15018 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 15019 returning non-zero before the data has been completely received 15020 when using non-blocking I/O. 15021 15022 *Bodo Moeller; problem pointed out by John Hughes* 15023 15024 * Some of the ciphers missed the strength entry (SSL_LOW etc). 15025 15026 *Ben Laurie, Lutz Jaenicke* 15027 15028 * Fix bug in SSL_clear(): bad sessions were not removed (found by 15029 Yoram Zahavi <YoramZ@gilian.com>). 15030 15031 *Lutz Jaenicke* 15032 15033 * Add information about CygWin 1.3 and on, and preserve proper 15034 configuration for the versions before that. 15035 15036 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 15037 15038 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 15039 check whether we deal with a copy of a session and do not delete from 15040 the cache in this case. Problem reported by "Izhar Shoshani Levi" 15041 <izhar@checkpoint.com>. 15042 15043 *Lutz Jaenicke* 15044 15045 * Do not store session data into the internal session cache, if it 15046 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 15047 flag is set). Proposed by Aslam <aslam@funk.com>. 15048 15049 *Lutz Jaenicke* 15050 15051 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 15052 value is 0. 15053 15054 *Richard Levitte* 15055 15056 * [In 0.9.6d-engine release:] 15057 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 15058 15059 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 15060 15061 * Add the configuration target linux-s390x. 15062 15063 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 15064 15065 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 15066 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 15067 variable as an indication that a ClientHello message has been 15068 received. As the flag value will be lost between multiple 15069 invocations of ssl3_accept when using non-blocking I/O, the 15070 function may not be aware that a handshake has actually taken 15071 place, thus preventing a new session from being added to the 15072 session cache. 15073 15074 To avoid this problem, we now set s->new_session to 2 instead of 15075 using a local variable. 15076 15077 *Lutz Jaenicke, Bodo Moeller* 15078 15079 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 15080 if the SSL_R_LENGTH_MISMATCH error is detected. 15081 15082 *Geoff Thorpe, Bodo Moeller* 15083 15084 * New 'shared_ldflag' column in Configure platform table. 15085 15086 *Richard Levitte* 15087 15088 * Fix EVP_CIPHER_mode macro. 15089 15090 *"Dan S. Camper" <dan@bti.net>* 15091 15092 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 15093 type, we must throw them away by setting rr->length to 0. 15094 15095 *D P Chang <dpc@qualys.com>* 15096 15097### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 15098 15099 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 15100 <Dominikus.Scherkl@biodata.com>. (The previous implementation 15101 worked incorrectly for those cases where range = `10..._2` and 15102 `3*range` is two bits longer than range.) 15103 15104 *Bodo Moeller* 15105 15106 * Only add signing time to PKCS7 structures if it is not already 15107 present. 15108 15109 *Steve Henson* 15110 15111 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 15112 OBJ_ld_ce should be OBJ_id_ce. 15113 Also some ip-pda OIDs in crypto/objects/objects.txt were 15114 incorrect (cf. RFC 3039). 15115 15116 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 15117 15118 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 15119 returns early because it has nothing to do. 15120 15121 *Andy Schneider <andy.schneider@bjss.co.uk>* 15122 15123 * [In 0.9.6c-engine release:] 15124 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 15125 15126 *Andy Schneider <andy.schneider@bjss.co.uk>* 15127 15128 * [In 0.9.6c-engine release:] 15129 Add support for Cryptographic Appliance's keyserver technology. 15130 (Use engine 'keyclient') 15131 15132 *Cryptographic Appliances and Geoff Thorpe* 15133 15134 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 15135 is called via tools/c89.sh because arguments have to be 15136 rearranged (all '-L' options must appear before the first object 15137 modules). 15138 15139 *Richard Shapiro <rshapiro@abinitio.com>* 15140 15141 * [In 0.9.6c-engine release:] 15142 Add support for Broadcom crypto accelerator cards, backported 15143 from 0.9.7. 15144 15145 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 15146 15147 * [In 0.9.6c-engine release:] 15148 Add support for SureWare crypto accelerator cards from 15149 Baltimore Technologies. (Use engine 'sureware') 15150 15151 *Baltimore Technologies and Mark Cox* 15152 15153 * [In 0.9.6c-engine release:] 15154 Add support for crypto accelerator cards from Accelerated 15155 Encryption Processing, www.aep.ie. (Use engine 'aep') 15156 15157 *AEP Inc. and Mark Cox* 15158 15159 * Add a configuration entry for gcc on UnixWare. 15160 15161 *Gary Benson <gbenson@redhat.com>* 15162 15163 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 15164 messages are stored in a single piece (fixed-length part and 15165 variable-length part combined) and fix various bugs found on the way. 15166 15167 *Bodo Moeller* 15168 15169 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 15170 instead. BIO_gethostbyname() does not know what timeouts are 15171 appropriate, so entries would stay in cache even when they have 15172 become invalid. 15173 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 15174 15175 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 15176 faced with a pathologically small ClientHello fragment that does 15177 not contain client_version: Instead of aborting with an error, 15178 simply choose the highest available protocol version (i.e., 15179 TLS 1.0 unless it is disabled). In practice, ClientHello 15180 messages are never sent like this, but this change gives us 15181 strictly correct behaviour at least for TLS. 15182 15183 *Bodo Moeller* 15184 15185 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 15186 never resets s->method to s->ctx->method when called from within 15187 one of the SSL handshake functions. 15188 15189 *Bodo Moeller; problem pointed out by Niko Baric* 15190 15191 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 15192 (sent using the client's version number) if client_version is 15193 smaller than the protocol version in use. Also change 15194 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 15195 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 15196 the client will at least see that alert. 15197 15198 *Bodo Moeller* 15199 15200 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 15201 correctly. 15202 15203 *Bodo Moeller* 15204 15205 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 15206 client receives HelloRequest while in a handshake. 15207 15208 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 15209 15210 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 15211 should end in 'break', not 'goto end' which circumvents various 15212 cleanups done in state SSL_ST_OK. But session related stuff 15213 must be disabled for SSL_ST_OK in the case that we just sent a 15214 HelloRequest. 15215 15216 Also avoid some overhead by not calling ssl_init_wbio_buffer() 15217 before just sending a HelloRequest. 15218 15219 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 15220 15221 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 15222 reveal whether illegal block cipher padding was found or a MAC 15223 verification error occurred. (Neither SSLerr() codes nor alerts 15224 are directly visible to potential attackers, but the information 15225 may leak via logfiles.) 15226 15227 Similar changes are not required for the SSL 2.0 implementation 15228 because the number of padding bytes is sent in clear for SSL 2.0, 15229 and the extra bytes are just ignored. However ssl/s2_pkt.c 15230 failed to verify that the purported number of padding bytes is in 15231 the legal range. 15232 15233 *Bodo Moeller* 15234 15235 * Add OpenUNIX-8 support including shared libraries 15236 (Boyd Lynn Gerber <gerberb@zenez.com>). 15237 15238 *Lutz Jaenicke* 15239 15240 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 15241 'wristwatch attack' using huge encoding parameters (cf. 15242 James H. Manger's CRYPTO 2001 paper). Note that the 15243 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 15244 encoding parameters and hence was not vulnerable. 15245 15246 *Bodo Moeller* 15247 15248 * BN_sqr() bug fix. 15249 15250 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 15251 15252 * Rabin-Miller test analyses assume uniformly distributed witnesses, 15253 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 15254 followed by modular reduction. 15255 15256 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 15257 15258 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 15259 equivalent based on BN_pseudo_rand() instead of BN_rand(). 15260 15261 *Bodo Moeller* 15262 15263 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 15264 This function was broken, as the check for a new client hello message 15265 to handle SGC did not allow these large messages. 15266 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 15267 15268 *Lutz Jaenicke* 15269 15270 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 15271 15272 *Lutz Jaenicke* 15273 15274 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 15275 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 15276 15277 *Lutz Jaenicke* 15278 15279 * Rework the configuration and shared library support for Tru64 Unix. 15280 The configuration part makes use of modern compiler features and 15281 still retains old compiler behavior for those that run older versions 15282 of the OS. The shared library support part includes a variant that 15283 uses the RPATH feature, and is available through the special 15284 configuration target "alpha-cc-rpath", which will never be selected 15285 automatically. 15286 15287 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 15288 15289 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 15290 with the same message size as in ssl3_get_certificate_request(). 15291 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 15292 messages might inadvertently be reject as too long. 15293 15294 *Petr Lampa <lampa@fee.vutbr.cz>* 15295 15296 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 15297 15298 *Andy Polyakov* 15299 15300 * Modified SSL library such that the verify_callback that has been set 15301 specifically for an SSL object with SSL_set_verify() is actually being 15302 used. Before the change, a verify_callback set with this function was 15303 ignored and the verify_callback() set in the SSL_CTX at the time of 15304 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 15305 to allow the necessary settings. 15306 15307 *Lutz Jaenicke* 15308 15309 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 15310 explicitly to NULL, as at least on Solaris 8 this seems not always to be 15311 done automatically (in contradiction to the requirements of the C 15312 standard). This made problems when used from OpenSSH. 15313 15314 *Lutz Jaenicke* 15315 15316 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 15317 dh->length and always used 15318 15319 BN_rand_range(priv_key, dh->p). 15320 15321 BN_rand_range() is not necessary for Diffie-Hellman, and this 15322 specific range makes Diffie-Hellman unnecessarily inefficient if 15323 dh->length (recommended exponent length) is much smaller than the 15324 length of dh->p. We could use BN_rand_range() if the order of 15325 the subgroup was stored in the DH structure, but we only have 15326 dh->length. 15327 15328 So switch back to 15329 15330 BN_rand(priv_key, l, ...) 15331 15332 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 15333 otherwise. 15334 15335 *Bodo Moeller* 15336 15337 * In 15338 15339 RSA_eay_public_encrypt 15340 RSA_eay_private_decrypt 15341 RSA_eay_private_encrypt (signing) 15342 RSA_eay_public_decrypt (signature verification) 15343 15344 (default implementations for RSA_public_encrypt, 15345 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 15346 always reject numbers >= n. 15347 15348 *Bodo Moeller* 15349 15350 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 15351 to synchronize access to 'locking_thread'. This is necessary on 15352 systems where access to 'locking_thread' (an 'unsigned long' 15353 variable) is not atomic. 15354 15355 *Bodo Moeller* 15356 15357 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 15358 *before* setting the 'crypto_lock_rand' flag. The previous code had 15359 a race condition if 0 is a valid thread ID. 15360 15361 *Travis Vitek <vitek@roguewave.com>* 15362 15363 * Add support for shared libraries under Irix. 15364 15365 *Albert Chin-A-Young <china@thewrittenword.com>* 15366 15367 * Add configuration option to build on Linux on both big-endian and 15368 little-endian MIPS. 15369 15370 *Ralf Baechle <ralf@uni-koblenz.de>* 15371 15372 * Add the possibility to create shared libraries on HP-UX. 15373 15374 *Richard Levitte* 15375 15376### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15377 15378 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15379 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15380 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15381 PRNG state recovery was possible based on the output of 15382 one PRNG request appropriately sized to gain knowledge on 15383 'md' followed by enough consecutive 1-byte PRNG requests 15384 to traverse all of 'state'. 15385 15386 1. When updating 'md_local' (the current thread's copy of 'md') 15387 during PRNG output generation, hash all of the previous 15388 'md_local' value, not just the half used for PRNG output. 15389 15390 2. Make the number of bytes from 'state' included into the hash 15391 independent from the number of PRNG bytes requested. 15392 15393 The first measure alone would be sufficient to avoid 15394 Markku-Juhani's attack. (Actually it had never occurred 15395 to me that the half of 'md_local' used for chaining was the 15396 half from which PRNG output bytes were taken -- I had always 15397 assumed that the secret half would be used.) The second 15398 measure makes sure that additional data from 'state' is never 15399 mixed into 'md_local' in small portions; this heuristically 15400 further strengthens the PRNG. 15401 15402 *Bodo Moeller* 15403 15404 * Fix crypto/bn/asm/mips3.s. 15405 15406 *Andy Polyakov* 15407 15408 * When only the key is given to "enc", the IV is undefined. Print out 15409 an error message in this case. 15410 15411 *Lutz Jaenicke* 15412 15413 * Handle special case when X509_NAME is empty in X509 printing routines. 15414 15415 *Steve Henson* 15416 15417 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15418 positive and less than q. 15419 15420 *Bodo Moeller* 15421 15422 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15423 used: it isn't thread safe and the add_lock_callback should handle 15424 that itself. 15425 15426 *Paul Rose <Paul.Rose@bridge.com>* 15427 15428 * Verify that incoming data obeys the block size in 15429 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15430 15431 *Bodo Moeller* 15432 15433 * Fix OAEP check. 15434 15435 *Ulf Möller, Bodo Möller* 15436 15437 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15438 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15439 when fixing the server behaviour for backwards-compatible 'client 15440 hello' messages. (Note that the attack is impractical against 15441 SSL 3.0 and TLS 1.0 anyway because length and version checking 15442 means that the probability of guessing a valid ciphertext is 15443 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15444 paper.) 15445 15446 Before 0.9.5, the countermeasure (hide the error by generating a 15447 random 'decryption result') did not work properly because 15448 ERR_clear_error() was missing, meaning that SSL_get_error() would 15449 detect the supposedly ignored error. 15450 15451 Both problems are now fixed. 15452 15453 *Bodo Moeller* 15454 15455 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15456 (previously it was 1024). 15457 15458 *Bodo Moeller* 15459 15460 * Fix for compatibility mode trust settings: ignore trust settings 15461 unless some valid trust or reject settings are present. 15462 15463 *Steve Henson* 15464 15465 * Fix for blowfish EVP: its a variable length cipher. 15466 15467 *Steve Henson* 15468 15469 * Fix various bugs related to DSA S/MIME verification. Handle missing 15470 parameters in DSA public key structures and return an error in the 15471 DSA routines if parameters are absent. 15472 15473 *Steve Henson* 15474 15475 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15476 in the current directory if neither $RANDFILE nor $HOME was set. 15477 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15478 caused some confusion to Windows users who haven't defined $HOME. 15479 Thus RAND_file_name() is changed again: e_os.h can define a 15480 DEFAULT_HOME, which will be used if $HOME is not set. 15481 For Windows, we use "C:"; on other platforms, we still require 15482 environment variables. 15483 15484 * Move 'if (!initialized) RAND_poll()' into regions protected by 15485 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15486 having multiple threads call RAND_poll() concurrently. 15487 15488 *Bodo Moeller* 15489 15490 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15491 combination of a flag and a thread ID variable. 15492 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15493 flag), *other* threads can enter ssleay_add_bytes without obeying 15494 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15495 that they do not hold after the first thread unsets add_do_not_lock). 15496 15497 *Bodo Moeller* 15498 15499 * Change bctest again: '-x' expressions are not available in all 15500 versions of 'test'. 15501 15502 *Bodo Moeller* 15503 15504### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15505 15506 * Fix a couple of memory leaks in PKCS7_dataDecode() 15507 15508 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15509 15510 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15511 the default extension for executables, if any. Also, make the perl 15512 scripts that use symlink() to test if it really exists and use "cp" 15513 if it doesn't. All this made OpenSSL compilable and installable in 15514 CygWin. 15515 15516 *Richard Levitte* 15517 15518 * Fix for asn1_GetSequence() for indefinite length constructed data. 15519 If SEQUENCE is length is indefinite just set c->slen to the total 15520 amount of data available. 15521 15522 *Steve Henson, reported by shige@FreeBSD.org* 15523 15524 *This change does not apply to 0.9.7.* 15525 15526 * Change bctest to avoid here-documents inside command substitution 15527 (workaround for FreeBSD /bin/sh bug). 15528 For compatibility with Ultrix, avoid shell functions (introduced 15529 in the bctest version that searches along $PATH). 15530 15531 *Bodo Moeller* 15532 15533 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15534 with des_encrypt() defined on some operating systems, like Solaris 15535 and UnixWare. 15536 15537 *Richard Levitte* 15538 15539 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15540 On the Importance of Eliminating Errors in Cryptographic 15541 Computations, J. Cryptology 14 (2001) 2, 101-119, 15542 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15543 15544 *Ulf Moeller* 15545 15546 * MIPS assembler BIGNUM division bug fix. 15547 15548 *Andy Polyakov* 15549 15550 * Disabled incorrect Alpha assembler code. 15551 15552 *Richard Levitte* 15553 15554 * Fix PKCS#7 decode routines so they correctly update the length 15555 after reading an EOC for the EXPLICIT tag. 15556 15557 *Steve Henson* 15558 15559 *This change does not apply to 0.9.7.* 15560 15561 * Fix bug in PKCS#12 key generation routines. This was triggered 15562 if a 3DES key was generated with a 0 initial byte. Include 15563 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15564 (but broken) behaviour. 15565 15566 *Steve Henson* 15567 15568 * Enhance bctest to search for a working bc along $PATH and print 15569 it when found. 15570 15571 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15572 15573 * Fix memory leaks in err.c: free err_data string if necessary; 15574 don't write to the wrong index in ERR_set_error_data. 15575 15576 *Bodo Moeller* 15577 15578 * Implement ssl23_peek (analogous to ssl23_read), which previously 15579 did not exist. 15580 15581 *Bodo Moeller* 15582 15583 * Replace rdtsc with `_emit` statements for VC++ version 5. 15584 15585 *Jeremy Cooper <jeremy@baymoo.org>* 15586 15587 * Make it possible to reuse SSLv2 sessions. 15588 15589 *Richard Levitte* 15590 15591 * In copy_email() check for >= 0 as a return value for 15592 X509_NAME_get_index_by_NID() since 0 is a valid index. 15593 15594 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15595 15596 * Avoid coredump with unsupported or invalid public keys by checking if 15597 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15598 PKCS7_verify() fails with non detached data. 15599 15600 *Steve Henson* 15601 15602 * Don't use getenv in library functions when run as setuid/setgid. 15603 New function OPENSSL_issetugid(). 15604 15605 *Ulf Moeller* 15606 15607 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15608 due to incorrect handling of multi-threading: 15609 15610 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15611 15612 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15613 15614 3. Count how many times MemCheck_off() has been called so that 15615 nested use can be treated correctly. This also avoids 15616 inband-signalling in the previous code (which relied on the 15617 assumption that thread ID 0 is impossible). 15618 15619 *Bodo Moeller* 15620 15621 * Add "-rand" option also to s_client and s_server. 15622 15623 *Lutz Jaenicke* 15624 15625 * Fix CPU detection on Irix 6.x. 15626 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15627 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15628 15629 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15630 was empty. 15631 15632 *Steve Henson* 15633 15634 *This change does not apply to 0.9.7.* 15635 15636 * Use the cached encoding of an X509_NAME structure rather than 15637 copying it. This is apparently the reason for the libsafe "errors" 15638 but the code is actually correct. 15639 15640 *Steve Henson* 15641 15642 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15643 Bleichenbacher's DSA attack. 15644 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15645 to be set and top=0 forces the highest bit to be set; top=-1 is new 15646 and leaves the highest bit random. 15647 15648 *Ulf Moeller, Bodo Moeller* 15649 15650 * In the `NCONF_...`-based implementations for `CONF_...` queries 15651 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15652 a temporary CONF structure with the data component set to NULL 15653 (which gives segmentation faults in lh_retrieve). 15654 Instead, use NULL for the CONF pointer in CONF_get_string and 15655 CONF_get_number (which may use environment variables) and directly 15656 return NULL from CONF_get_section. 15657 15658 *Bodo Moeller* 15659 15660 * Fix potential buffer overrun for EBCDIC. 15661 15662 *Ulf Moeller* 15663 15664 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15665 keyUsage if basicConstraints absent for a CA. 15666 15667 *Steve Henson* 15668 15669 * Make SMIME_write_PKCS7() write mail header values with a format that 15670 is more generally accepted (no spaces before the semicolon), since 15671 some programs can't parse those values properly otherwise. Also make 15672 sure BIO's that break lines after each write do not create invalid 15673 headers. 15674 15675 *Richard Levitte* 15676 15677 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15678 macros previously used would not encode an empty SEQUENCE OF 15679 and break the signature. 15680 15681 *Steve Henson* 15682 15683 *This change does not apply to 0.9.7.* 15684 15685 * Zero the premaster secret after deriving the master secret in 15686 DH ciphersuites. 15687 15688 *Steve Henson* 15689 15690 * Add some EVP_add_digest_alias registrations (as found in 15691 OpenSSL_add_all_digests()) to SSL_library_init() 15692 aka OpenSSL_add_ssl_algorithms(). This provides improved 15693 compatibility with peers using X.509 certificates 15694 with unconventional AlgorithmIdentifier OIDs. 15695 15696 *Bodo Moeller* 15697 15698 * Fix for Irix with NO_ASM. 15699 15700 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15701 15702 * ./config script fixes. 15703 15704 *Ulf Moeller, Richard Levitte* 15705 15706 * Fix 'openssl passwd -1'. 15707 15708 *Bodo Moeller* 15709 15710 * Change PKCS12_key_gen_asc() so it can cope with non null 15711 terminated strings whose length is passed in the passlen 15712 parameter, for example from PEM callbacks. This was done 15713 by adding an extra length parameter to asc2uni(). 15714 15715 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15716 15717 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15718 call failed, free the DSA structure. 15719 15720 *Bodo Moeller* 15721 15722 * Fix to uni2asc() to cope with zero length Unicode strings. 15723 These are present in some PKCS#12 files. 15724 15725 *Steve Henson* 15726 15727 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15728 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15729 when writing a 32767 byte record. 15730 15731 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15732 15733 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15734 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15735 15736 (RSA objects have a reference count access to which is protected 15737 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15738 so they are meant to be shared between threads.) 15739 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15740 "Reddie, Steven" <Steven.Reddie@ca.com>* 15741 15742 * Fix a deadlock in CRYPTO_mem_leaks(). 15743 15744 *Bodo Moeller* 15745 15746 * Use better test patterns in bntest. 15747 15748 *Ulf Möller* 15749 15750 * rand_win.c fix for Borland C. 15751 15752 *Ulf Möller* 15753 15754 * BN_rshift bugfix for n == 0. 15755 15756 *Bodo Moeller* 15757 15758 * Add a 'bctest' script that checks for some known 'bc' bugs 15759 so that 'make test' does not abort just because 'bc' is broken. 15760 15761 *Bodo Moeller* 15762 15763 * Store verify_result within SSL_SESSION also for client side to 15764 avoid potential security hole. (Re-used sessions on the client side 15765 always resulted in verify_result==X509_V_OK, not using the original 15766 result of the server certificate verification.) 15767 15768 *Lutz Jaenicke* 15769 15770 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15771 SSL3_RT_APPLICATION_DATA, return 0. 15772 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15773 15774 *Bodo Moeller* 15775 15776 * Fix SSL_peek: 15777 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15778 releases, have been re-implemented by renaming the previous 15779 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15780 and ssl3_read_internal, respectively, and adding 'peek' parameters 15781 to them. The new ssl[23]_{read,peek} functions are calls to 15782 ssl[23]_read_internal with the 'peek' flag set appropriately. 15783 A 'peek' parameter has also been added to ssl3_read_bytes, which 15784 does the actual work for ssl3_read_internal. 15785 15786 *Bodo Moeller* 15787 15788 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15789 the method-specific "init()" handler. Also clean up ex_data after 15790 calling the method-specific "finish()" handler. Previously, this was 15791 happening the other way round. 15792 15793 *Geoff Thorpe* 15794 15795 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15796 The previous value, 12, was not always sufficient for BN_mod_exp(). 15797 15798 *Bodo Moeller* 15799 15800 * Make sure that shared libraries get the internal name engine with 15801 the full version number and not just 0. This should mark the 15802 shared libraries as not backward compatible. Of course, this should 15803 be changed again when we can guarantee backward binary compatibility. 15804 15805 *Richard Levitte* 15806 15807 * Fix typo in get_cert_by_subject() in by_dir.c 15808 15809 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15810 15811 * Rework the system to generate shared libraries: 15812 15813 - Make note of the expected extension for the shared libraries and 15814 if there is a need for symbolic links from for example libcrypto.so.0 15815 to libcrypto.so.0.9.7. There is extended info in Configure for 15816 that. 15817 15818 - Make as few rebuilds of the shared libraries as possible. 15819 15820 - Still avoid linking the OpenSSL programs with the shared libraries. 15821 15822 - When installing, install the shared libraries separately from the 15823 static ones. 15824 15825 *Richard Levitte* 15826 15827 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15828 15829 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15830 and not in SSL_clear because the latter is also used by the 15831 accept/connect functions; previously, the settings made by 15832 SSL_set_read_ahead would be lost during the handshake. 15833 15834 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15835 15836 * Correct util/mkdef.pl to be selective about disabled algorithms. 15837 Previously, it would create entries for disabled algorithms no 15838 matter what. 15839 15840 *Richard Levitte* 15841 15842 * Added several new manual pages for SSL_* function. 15843 15844 *Lutz Jaenicke* 15845 15846### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15847 15848 * In ssl23_get_client_hello, generate an error message when faced 15849 with an initial SSL 3.0/TLS record that is too small to contain the 15850 first two bytes of the ClientHello message, i.e. client_version. 15851 (Note that this is a pathologic case that probably has never happened 15852 in real life.) The previous approach was to use the version number 15853 from the record header as a substitute; but our protocol choice 15854 should not depend on that one because it is not authenticated 15855 by the Finished messages. 15856 15857 *Bodo Moeller* 15858 15859 * More robust randomness gathering functions for Windows. 15860 15861 *Jeffrey Altman <jaltman@columbia.edu>* 15862 15863 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15864 not set then we don't setup the error code for issuer check errors 15865 to avoid possibly overwriting other errors which the callback does 15866 handle. If an application does set the flag then we assume it knows 15867 what it is doing and can handle the new informational codes 15868 appropriately. 15869 15870 *Steve Henson* 15871 15872 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15873 a general "ANY" type, as such it should be able to decode anything 15874 including tagged types. However it didn't check the class so it would 15875 wrongly interpret tagged types in the same way as their universal 15876 counterpart and unknown types were just rejected. Changed so that the 15877 tagged and unknown types are handled in the same way as a SEQUENCE: 15878 that is the encoding is stored intact. There is also a new type 15879 "V_ASN1_OTHER" which is used when the class is not universal, in this 15880 case we have no idea what the actual type is so we just lump them all 15881 together. 15882 15883 *Steve Henson* 15884 15885 * On VMS, stdout may very well lead to a file that is written to 15886 in a record-oriented fashion. That means that every write() will 15887 write a separate record, which will be read separately by the 15888 programs trying to read from it. This can be very confusing. 15889 15890 The solution is to put a BIO filter in the way that will buffer 15891 text until a linefeed is reached, and then write everything a 15892 line at a time, so every record written will be an actual line, 15893 not chunks of lines and not (usually doesn't happen, but I've 15894 seen it once) several lines in one record. BIO_f_linebuffer() is 15895 the answer. 15896 15897 Currently, it's a VMS-only method, because that's where it has 15898 been tested well enough. 15899 15900 *Richard Levitte* 15901 15902 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15903 it can return incorrect results. 15904 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15905 but it was in 0.9.6-beta[12].) 15906 15907 *Bodo Moeller* 15908 15909 * Disable the check for content being present when verifying detached 15910 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15911 include zero length content when signing messages. 15912 15913 *Steve Henson* 15914 15915 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15916 BIO_ctrl (for BIO pairs). 15917 15918 *Bodo Möller* 15919 15920 * Add DSO method for VMS. 15921 15922 *Richard Levitte* 15923 15924 * Bug fix: Montgomery multiplication could produce results with the 15925 wrong sign. 15926 15927 *Ulf Möller* 15928 15929 * Add RPM specification openssl.spec and modify it to build three 15930 packages. The default package contains applications, application 15931 documentation and run-time libraries. The devel package contains 15932 include files, static libraries and function documentation. The 15933 doc package contains the contents of the doc directory. The original 15934 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15935 15936 *Richard Levitte* 15937 15938 * Add a large number of documentation files for many SSL routines. 15939 15940 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15941 15942 * Add a configuration entry for Sony News 4. 15943 15944 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15945 15946 * Don't set the two most significant bits to one when generating a 15947 random number < q in the DSA library. 15948 15949 *Ulf Möller* 15950 15951 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15952 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15953 the underlying transport is blocking) if a handshake took place. 15954 (The default behaviour is needed by applications such as s_client 15955 and s_server that use select() to determine when to use SSL_read; 15956 but for applications that know in advance when to expect data, it 15957 just makes things more complicated.) 15958 15959 *Bodo Moeller* 15960 15961 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15962 from EGD. 15963 15964 *Ben Laurie* 15965 15966 * Add a few more EBCDIC conditionals that make `req` and `x509` 15967 work better on such systems. 15968 15969 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15970 15971 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15972 Update PKCS12_parse() so it copies the friendlyName and the 15973 keyid to the certificates aux info. 15974 15975 *Steve Henson* 15976 15977 * Fix bug in PKCS7_verify() which caused an infinite loop 15978 if there was more than one signature. 15979 15980 *Sven Uszpelkat <su@celocom.de>* 15981 15982 * Major change in util/mkdef.pl to include extra information 15983 about each symbol, as well as presenting variables as well 15984 as functions. This change means that there's n more need 15985 to rebuild the .num files when some algorithms are excluded. 15986 15987 *Richard Levitte* 15988 15989 * Allow the verify time to be set by an application, 15990 rather than always using the current time. 15991 15992 *Steve Henson* 15993 15994 * Phase 2 verify code reorganisation. The certificate 15995 verify code now looks up an issuer certificate by a 15996 number of criteria: subject name, authority key id 15997 and key usage. It also verifies self signed certificates 15998 by the same criteria. The main comparison function is 15999 X509_check_issued() which performs these checks. 16000 16001 Lot of changes were necessary in order to support this 16002 without completely rewriting the lookup code. 16003 16004 Authority and subject key identifier are now cached. 16005 16006 The LHASH 'certs' is X509_STORE has now been replaced 16007 by a STACK_OF(X509_OBJECT). This is mainly because an 16008 LHASH can't store or retrieve multiple objects with 16009 the same hash value. 16010 16011 As a result various functions (which were all internal 16012 use only) have changed to handle the new X509_STORE 16013 structure. This will break anything that messed round 16014 with X509_STORE internally. 16015 16016 The functions X509_STORE_add_cert() now checks for an 16017 exact match, rather than just subject name. 16018 16019 The X509_STORE API doesn't directly support the retrieval 16020 of multiple certificates matching a given criteria, however 16021 this can be worked round by performing a lookup first 16022 (which will fill the cache with candidate certificates) 16023 and then examining the cache for matches. This is probably 16024 the best we can do without throwing out X509_LOOKUP 16025 entirely (maybe later...). 16026 16027 The X509_VERIFY_CTX structure has been enhanced considerably. 16028 16029 All certificate lookup operations now go via a get_issuer() 16030 callback. Although this currently uses an X509_STORE it 16031 can be replaced by custom lookups. This is a simple way 16032 to bypass the X509_STORE hackery necessary to make this 16033 work and makes it possible to use more efficient techniques 16034 in future. A very simple version which uses a simple 16035 STACK for its trusted certificate store is also provided 16036 using X509_STORE_CTX_trusted_stack(). 16037 16038 The verify_cb() and verify() callbacks now have equivalents 16039 in the X509_STORE_CTX structure. 16040 16041 X509_STORE_CTX also has a 'flags' field which can be used 16042 to customise the verify behaviour. 16043 16044 *Steve Henson* 16045 16046 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 16047 excludes S/MIME capabilities. 16048 16049 *Steve Henson* 16050 16051 * When a certificate request is read in keep a copy of the 16052 original encoding of the signed data and use it when outputting 16053 again. Signatures then use the original encoding rather than 16054 a decoded, encoded version which may cause problems if the 16055 request is improperly encoded. 16056 16057 *Steve Henson* 16058 16059 * For consistency with other BIO_puts implementations, call 16060 buffer_write(b, ...) directly in buffer_puts instead of calling 16061 BIO_write(b, ...). 16062 16063 In BIO_puts, increment b->num_write as in BIO_write. 16064 16065 *Peter.Sylvester@EdelWeb.fr* 16066 16067 * Fix BN_mul_word for the case where the word is 0. (We have to use 16068 BN_zero, we may not return a BIGNUM with an array consisting of 16069 words set to zero.) 16070 16071 *Bodo Moeller* 16072 16073 * Avoid calling abort() from within the library when problems are 16074 detected, except if preprocessor symbols have been defined 16075 (such as REF_CHECK, BN_DEBUG etc.). 16076 16077 *Bodo Moeller* 16078 16079 * New openssl application 'rsautl'. This utility can be 16080 used for low-level RSA operations. DER public key 16081 BIO/fp routines also added. 16082 16083 *Steve Henson* 16084 16085 * New Configure entry and patches for compiling on QNX 4. 16086 16087 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 16088 16089 * A demo state-machine implementation was sponsored by 16090 Nuron (<http://www.nuron.com/>) and is now available in 16091 demos/state_machine. 16092 16093 *Ben Laurie* 16094 16095 * New options added to the 'dgst' utility for signature 16096 generation and verification. 16097 16098 *Steve Henson* 16099 16100 * Unrecognized PKCS#7 content types are now handled via a 16101 catch all ASN1_TYPE structure. This allows unsupported 16102 types to be stored as a "blob" and an application can 16103 encode and decode it manually. 16104 16105 *Steve Henson* 16106 16107 * Fix various signed/unsigned issues to make a_strex.c 16108 compile under VC++. 16109 16110 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 16111 16112 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 16113 length if passed a buffer. ASN1_INTEGER_to_BN failed 16114 if passed a NULL BN and its argument was negative. 16115 16116 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 16117 16118 * Modification to PKCS#7 encoding routines to output definite 16119 length encoding. Since currently the whole structures are in 16120 memory there's not real point in using indefinite length 16121 constructed encoding. However if OpenSSL is compiled with 16122 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 16123 16124 *Steve Henson* 16125 16126 * Added BIO_vprintf() and BIO_vsnprintf(). 16127 16128 *Richard Levitte* 16129 16130 * Added more prefixes to parse for in the strings written 16131 through a logging bio, to cover all the levels that are available 16132 through syslog. The prefixes are now: 16133 16134 PANIC, EMERG, EMR => LOG_EMERG 16135 ALERT, ALR => LOG_ALERT 16136 CRIT, CRI => LOG_CRIT 16137 ERROR, ERR => LOG_ERR 16138 WARNING, WARN, WAR => LOG_WARNING 16139 NOTICE, NOTE, NOT => LOG_NOTICE 16140 INFO, INF => LOG_INFO 16141 DEBUG, DBG => LOG_DEBUG 16142 16143 and as before, if none of those prefixes are present at the 16144 beginning of the string, LOG_ERR is chosen. 16145 16146 On Win32, the `LOG_*` levels are mapped according to this: 16147 16148 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 16149 LOG_WARNING => EVENTLOG_WARNING_TYPE 16150 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 16151 16152 *Richard Levitte* 16153 16154 * Made it possible to reconfigure with just the configuration 16155 argument "reconf" or "reconfigure". The command line arguments 16156 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 16157 and are retrieved from there when reconfiguring. 16158 16159 *Richard Levitte* 16160 16161 * MD4 implemented. 16162 16163 *Assar Westerlund <assar@sics.se>, Richard Levitte* 16164 16165 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 16166 16167 *Richard Levitte* 16168 16169 * The obj_dat.pl script was messing up the sorting of object 16170 names. The reason was that it compared the quoted version 16171 of strings as a result "OCSP" > "OCSP Signing" because 16172 " > SPACE. Changed script to store unquoted versions of 16173 names and add quotes on output. It was also omitting some 16174 names from the lookup table if they were given a default 16175 value (that is if SN is missing it is given the same 16176 value as LN and vice versa), these are now added on the 16177 grounds that if an object has a name we should be able to 16178 look it up. Finally added warning output when duplicate 16179 short or long names are found. 16180 16181 *Steve Henson* 16182 16183 * Changes needed for Tandem NSK. 16184 16185 *Scott Uroff <scott@xypro.com>* 16186 16187 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 16188 RSA_padding_check_SSLv23(), special padding was never detected 16189 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 16190 version rollback attacks was not effective. 16191 16192 In s23_clnt.c, don't use special rollback-attack detection padding 16193 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 16194 client; similarly, in s23_srvr.c, don't do the rollback check if 16195 SSL 2.0 is the only protocol enabled in the server. 16196 16197 *Bodo Moeller* 16198 16199 * Make it possible to get hexdumps of unprintable data with 'openssl 16200 asn1parse'. By implication, the functions ASN1_parse_dump() and 16201 BIO_dump_indent() are added. 16202 16203 *Richard Levitte* 16204 16205 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 16206 these print out strings and name structures based on various 16207 flags including RFC2253 support and proper handling of 16208 multibyte characters. Added options to the 'x509' utility 16209 to allow the various flags to be set. 16210 16211 *Steve Henson* 16212 16213 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 16214 Also change the functions X509_cmp_current_time() and 16215 X509_gmtime_adj() work with an ASN1_TIME structure, 16216 this will enable certificates using GeneralizedTime in validity 16217 dates to be checked. 16218 16219 *Steve Henson* 16220 16221 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 16222 negative public key encodings) on by default, 16223 NO_NEG_PUBKEY_BUG can be set to disable it. 16224 16225 *Steve Henson* 16226 16227 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 16228 content octets. An i2c_ASN1_OBJECT is unnecessary because 16229 the encoding can be trivially obtained from the structure. 16230 16231 *Steve Henson* 16232 16233 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 16234 not read locks (`CRYPTO_r_[un]lock`). 16235 16236 *Bodo Moeller* 16237 16238 * A first attempt at creating official support for shared 16239 libraries through configuration. I've kept it so the 16240 default is static libraries only, and the OpenSSL programs 16241 are always statically linked for now, but there are 16242 preparations for dynamic linking in place. 16243 This has been tested on Linux and Tru64. 16244 16245 *Richard Levitte* 16246 16247 * Randomness polling function for Win9x, as described in: 16248 Peter Gutmann, Software Generation of Practically Strong 16249 Random Numbers. 16250 16251 *Ulf Möller* 16252 16253 * Fix so PRNG is seeded in req if using an already existing 16254 DSA key. 16255 16256 *Steve Henson* 16257 16258 * New options to smime application. -inform and -outform 16259 allow alternative formats for the S/MIME message including 16260 PEM and DER. The -content option allows the content to be 16261 specified separately. This should allow things like Netscape 16262 form signing output easier to verify. 16263 16264 *Steve Henson* 16265 16266 * Fix the ASN1 encoding of tags using the 'long form'. 16267 16268 *Steve Henson* 16269 16270 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 16271 STRING types. These convert content octets to and from the 16272 underlying type. The actual tag and length octets are 16273 already assumed to have been read in and checked. These 16274 are needed because all other string types have virtually 16275 identical handling apart from the tag. By having versions 16276 of the ASN1 functions that just operate on content octets 16277 IMPLICIT tagging can be handled properly. It also allows 16278 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 16279 and ASN1_INTEGER are identical apart from the tag. 16280 16281 *Steve Henson* 16282 16283 * Change the handling of OID objects as follows: 16284 16285 - New object identifiers are inserted in objects.txt, following 16286 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 16287 - objects.pl is used to process obj_mac.num and create a new 16288 obj_mac.h. 16289 - obj_dat.pl is used to create a new obj_dat.h, using the data in 16290 obj_mac.h. 16291 16292 This is currently kind of a hack, and the perl code in objects.pl 16293 isn't very elegant, but it works as I intended. The simplest way 16294 to check that it worked correctly is to look in obj_dat.h and 16295 check the array nid_objs and make sure the objects haven't moved 16296 around (this is important!). Additions are OK, as well as 16297 consistent name changes. 16298 16299 *Richard Levitte* 16300 16301 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 16302 16303 *Bodo Moeller* 16304 16305 * Addition of the command line parameter '-rand file' to 'openssl req'. 16306 The given file adds to whatever has already been seeded into the 16307 random pool through the RANDFILE configuration file option or 16308 environment variable, or the default random state file. 16309 16310 *Richard Levitte* 16311 16312 * mkstack.pl now sorts each macro group into lexical order. 16313 Previously the output order depended on the order the files 16314 appeared in the directory, resulting in needless rewriting 16315 of safestack.h . 16316 16317 *Steve Henson* 16318 16319 * Patches to make OpenSSL compile under Win32 again. Mostly 16320 work arounds for the VC++ problem that it treats func() as 16321 func(void). Also stripped out the parts of mkdef.pl that 16322 added extra typesafe functions: these no longer exist. 16323 16324 *Steve Henson* 16325 16326 * Reorganisation of the stack code. The macros are now all 16327 collected in safestack.h . Each macro is defined in terms of 16328 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 16329 DEBUG_SAFESTACK is now handled in terms of function casts, 16330 this has the advantage of retaining type safety without the 16331 use of additional functions. If DEBUG_SAFESTACK is not defined 16332 then the non typesafe macros are used instead. Also modified the 16333 mkstack.pl script to handle the new form. Needs testing to see 16334 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 16335 the default if no major problems. Similar behaviour for ASN1_SET_OF 16336 and PKCS12_STACK_OF. 16337 16338 *Steve Henson* 16339 16340 * When some versions of IIS use the 'NET' form of private key the 16341 key derivation algorithm is different. Normally MD5(password) is 16342 used as a 128 bit RC4 key. In the modified case 16343 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 16344 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 16345 as the old Netscape_RSA functions except they have an additional 16346 'sgckey' parameter which uses the modified algorithm. Also added 16347 an -sgckey command line option to the rsa utility. Thanks to 16348 Adrian Peck <bertie@ncipher.com> for posting details of the modified 16349 algorithm to openssl-dev. 16350 16351 *Steve Henson* 16352 16353 * The evp_local.h macros were using 'c.##kname' which resulted in 16354 invalid expansion on some systems (SCO 5.0.5 for example). 16355 Corrected to 'c.kname'. 16356 16357 *Phillip Porch <root@theporch.com>* 16358 16359 * New X509_get1_email() and X509_REQ_get1_email() functions that return 16360 a STACK of email addresses from a certificate or request, these look 16361 in the subject name and the subject alternative name extensions and 16362 omit any duplicate addresses. 16363 16364 *Steve Henson* 16365 16366 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 16367 This makes DSA verification about 2 % faster. 16368 16369 *Bodo Moeller* 16370 16371 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 16372 (meaning that now 2^5 values will be precomputed, which is only 4 KB 16373 plus overhead for 1024 bit moduli). 16374 This makes exponentiations about 0.5 % faster for 1024 bit 16375 exponents (as measured by "openssl speed rsa2048"). 16376 16377 *Bodo Moeller* 16378 16379 * Rename memory handling macros to avoid conflicts with other 16380 software: 16381 Malloc => OPENSSL_malloc 16382 Malloc_locked => OPENSSL_malloc_locked 16383 Realloc => OPENSSL_realloc 16384 Free => OPENSSL_free 16385 16386 *Richard Levitte* 16387 16388 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16389 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16390 16391 *Bodo Moeller* 16392 16393 * CygWin32 support. 16394 16395 *John Jarvie <jjarvie@newsguy.com>* 16396 16397 * The type-safe stack code has been rejigged. It is now only compiled 16398 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16399 by default all type-specific stack functions are "#define"d back to 16400 standard stack functions. This results in more streamlined output 16401 but retains the type-safety checking possibilities of the original 16402 approach. 16403 16404 *Geoff Thorpe* 16405 16406 * The STACK code has been cleaned up, and certain type declarations 16407 that didn't make a lot of sense have been brought in line. This has 16408 also involved a cleanup of sorts in safestack.h to more correctly 16409 map type-safe stack functions onto their plain stack counterparts. 16410 This work has also resulted in a variety of "const"ifications of 16411 lots of the code, especially `_cmp` operations which should normally 16412 be prototyped with "const" parameters anyway. 16413 16414 *Geoff Thorpe* 16415 16416 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16417 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16418 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16419 where all of 'md' is used each time the PRNG is used, but 'state' 16420 is used only indexed by a cyclic counter. As entropy may not be 16421 well distributed from the beginning, 'md' is important as a 16422 chaining variable. However, the output function chains only half 16423 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16424 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16425 in all of 'state' being rewritten, with the new values depending 16426 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16427 16428 *Bodo Moeller* 16429 16430 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16431 the handshake is continued after ssl_verify_cert_chain(); 16432 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16433 can lead to 'unexplainable' connection aborts later. 16434 16435 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16436 16437 * Major EVP API cipher revision. 16438 Add hooks for extra EVP features. This allows various cipher 16439 parameters to be set in the EVP interface. Support added for variable 16440 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16441 setting of RC2 and RC5 parameters. 16442 16443 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16444 ciphers. 16445 16446 Remove lots of duplicated code from the EVP library. For example *every* 16447 cipher init() function handles the 'iv' in the same way according to the 16448 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16449 for CFB and OFB modes they zero ctx->num. 16450 16451 New functionality allows removal of S/MIME code RC2 hack. 16452 16453 Most of the routines have the same form and so can be declared in terms 16454 of macros. 16455 16456 By shifting this to the top level EVP_CipherInit() it can be removed from 16457 all individual ciphers. If the cipher wants to handle IVs or keys 16458 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16459 flags. 16460 16461 Change lots of functions like EVP_EncryptUpdate() to now return a 16462 value: although software versions of the algorithms cannot fail 16463 any installed hardware versions can. 16464 16465 *Steve Henson* 16466 16467 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16468 this option is set, tolerate broken clients that send the negotiated 16469 protocol version number instead of the requested protocol version 16470 number. 16471 16472 *Bodo Moeller* 16473 16474 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16475 i.e. non-zero for export ciphersuites, zero otherwise. 16476 Previous versions had this flag inverted, inconsistent with 16477 rsa_tmp_cb (..._TMP_RSA_CB). 16478 16479 *Bodo Moeller; problem reported by Amit Chopra* 16480 16481 * Add missing DSA library text string. Work around for some IIS 16482 key files with invalid SEQUENCE encoding. 16483 16484 *Steve Henson* 16485 16486 * Add a document (doc/standards.txt) that list all kinds of standards 16487 and so on that are implemented in OpenSSL. 16488 16489 *Richard Levitte* 16490 16491 * Enhance c_rehash script. Old version would mishandle certificates 16492 with the same subject name hash and wouldn't handle CRLs at all. 16493 Added -fingerprint option to crl utility, to support new c_rehash 16494 features. 16495 16496 *Steve Henson* 16497 16498 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16499 16500 *Ulf Möller* 16501 16502 * Fix for SSL server purpose checking. Server checking was 16503 rejecting certificates which had extended key usage present 16504 but no ssl client purpose. 16505 16506 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16507 16508 * Make PKCS#12 code work with no password. The PKCS#12 spec 16509 is a little unclear about how a blank password is handled. 16510 Since the password in encoded as a BMPString with terminating 16511 double NULL a zero length password would end up as just the 16512 double NULL. However no password at all is different and is 16513 handled differently in the PKCS#12 key generation code. NS 16514 treats a blank password as zero length. MSIE treats it as no 16515 password on export: but it will try both on import. We now do 16516 the same: PKCS12_parse() tries zero length and no password if 16517 the password is set to "" or NULL (NULL is now a valid password: 16518 it wasn't before) as does the pkcs12 application. 16519 16520 *Steve Henson* 16521 16522 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16523 perror when PEM_read_bio_X509_REQ fails, the error message must 16524 be obtained from the error queue. 16525 16526 *Bodo Moeller* 16527 16528 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16529 it in ERR_remove_state if appropriate, and change ERR_get_state 16530 accordingly to avoid race conditions (this is necessary because 16531 thread_hash is no longer constant once set). 16532 16533 *Bodo Moeller* 16534 16535 * Bugfix for linux-elf makefile.one. 16536 16537 *Ulf Möller* 16538 16539 * RSA_get_default_method() will now cause a default 16540 RSA_METHOD to be chosen if one doesn't exist already. 16541 Previously this was only set during a call to RSA_new() 16542 or RSA_new_method(NULL) meaning it was possible for 16543 RSA_get_default_method() to return NULL. 16544 16545 *Geoff Thorpe* 16546 16547 * Added native name translation to the existing DSO code 16548 that will convert (if the flag to do so is set) filenames 16549 that are sufficiently small and have no path information 16550 into a canonical native form. Eg. "blah" converted to 16551 "libblah.so" or "blah.dll" etc. 16552 16553 *Geoff Thorpe* 16554 16555 * New function ERR_error_string_n(e, buf, len) which is like 16556 ERR_error_string(e, buf), but writes at most 'len' bytes 16557 including the 0 terminator. For ERR_error_string_n, 'buf' 16558 may not be NULL. 16559 16560 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16561 16562 * CONF library reworked to become more general. A new CONF 16563 configuration file reader "class" is implemented as well as a 16564 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16565 old `CONF_*` functions are still there, but are reimplemented to 16566 work in terms of the new functions. Also, a set of functions 16567 to handle the internal storage of the configuration data is 16568 provided to make it easier to write new configuration file 16569 reader "classes" (I can definitely see something reading a 16570 configuration file in XML format, for example), called `_CONF_*`, 16571 or "the configuration storage API"... 16572 16573 The new configuration file reading functions are: 16574 16575 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16576 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16577 16578 NCONF_default, NCONF_WIN32 16579 16580 NCONF_dump_fp, NCONF_dump_bio 16581 16582 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16583 NCONF_new creates a new CONF object. This works in the same way 16584 as other interfaces in OpenSSL, like the BIO interface. 16585 `NCONF_dump_*` dump the internal storage of the configuration file, 16586 which is useful for debugging. All other functions take the same 16587 arguments as the old `CONF_*` functions with the exception of the 16588 first that must be a `CONF *` instead of a `LHASH *`. 16589 16590 To make it easier to use the new classes with the old `CONF_*` functions, 16591 the function CONF_set_default_method is provided. 16592 16593 *Richard Levitte* 16594 16595 * Add '-tls1' option to 'openssl ciphers', which was already 16596 mentioned in the documentation but had not been implemented. 16597 (This option is not yet really useful because even the additional 16598 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16599 16600 *Bodo Moeller* 16601 16602 * Initial DSO code added into libcrypto for letting OpenSSL (and 16603 OpenSSL-based applications) load shared libraries and bind to 16604 them in a portable way. 16605 16606 *Geoff Thorpe, with contributions from Richard Levitte* 16607 16608### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16609 16610 * Make sure _lrotl and _lrotr are only used with MSVC. 16611 16612 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16613 (the default implementation of RAND_status). 16614 16615 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16616 to '-clrext' (= clear extensions), as intended and documented. 16617 *Bodo Moeller; inconsistency pointed out by Michael Attili 16618 <attili@amaxo.com>* 16619 16620 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16621 was larger than the MD block size. 16622 16623 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16624 16625 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16626 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16627 using the passed key: if the passed key was a private key the result 16628 of X509_print(), for example, would be to print out all the private key 16629 components. 16630 16631 *Steve Henson* 16632 16633 * des_quad_cksum() byte order bug fix. 16634 *Ulf Möller, using the problem description in krb4-0.9.7, where 16635 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16636 16637 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16638 discouraged. 16639 16640 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16641 16642 * For easily testing in shell scripts whether some command 16643 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16644 returns with exit code 0 iff no command of the given name is available. 16645 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16646 the output goes to stdout and nothing is printed to stderr. 16647 Additional arguments are always ignored. 16648 16649 Since for each cipher there is a command of the same name, 16650 the 'no-cipher' compilation switches can be tested this way. 16651 16652 ('openssl no-XXX' is not able to detect pseudo-commands such 16653 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16654 16655 *Bodo Moeller* 16656 16657 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16658 16659 *Bodo Moeller* 16660 16661 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16662 is set; it will be thrown away anyway because each handshake creates 16663 its own key. 16664 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16665 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16666 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16667 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16668 16669 *Bodo Moeller* 16670 16671 * New s_client option -ign_eof: EOF at stdin is ignored, and 16672 'Q' and 'R' lose their special meanings (quit/renegotiate). 16673 This is part of what -quiet does; unlike -quiet, -ign_eof 16674 does not suppress any output. 16675 16676 *Richard Levitte* 16677 16678 * Add compatibility options to the purpose and trust code. The 16679 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16680 accepts a certificate or CA, this was the previous behaviour, 16681 with all the associated security issues. 16682 16683 X509_TRUST_COMPAT is the old trust behaviour: only and 16684 automatically trust self signed roots in certificate store. A 16685 new trust setting X509_TRUST_DEFAULT is used to specify that 16686 a purpose has no associated trust setting and it should instead 16687 use the value in the default purpose. 16688 16689 *Steve Henson* 16690 16691 * Fix the PKCS#8 DSA private key code so it decodes keys again 16692 and fix a memory leak. 16693 16694 *Steve Henson* 16695 16696 * In util/mkerr.pl (which implements 'make errors'), preserve 16697 reason strings from the previous version of the .c file, as 16698 the default to have only downcase letters (and digits) in 16699 automatically generated reasons codes is not always appropriate. 16700 16701 *Bodo Moeller* 16702 16703 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16704 using strerror. Previously, ERR_reason_error_string() returned 16705 library names as reason strings for SYSerr; but SYSerr is a special 16706 case where small numbers are errno values, not library numbers. 16707 16708 *Bodo Moeller* 16709 16710 * Add '-dsaparam' option to 'openssl dhparam' application. This 16711 converts DSA parameters into DH parameters. (When creating parameters, 16712 DSA_generate_parameters is used.) 16713 16714 *Bodo Moeller* 16715 16716 * Include 'length' (recommended exponent length) in C code generated 16717 by 'openssl dhparam -C'. 16718 16719 *Bodo Moeller* 16720 16721 * The second argument to set_label in perlasm was already being used 16722 so couldn't be used as a "file scope" flag. Moved to third argument 16723 which was free. 16724 16725 *Steve Henson* 16726 16727 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16728 instead of RAND_bytes for encryption IVs and salts. 16729 16730 *Bodo Moeller* 16731 16732 * Include RAND_status() into RAND_METHOD instead of implementing 16733 it only for md_rand.c Otherwise replacing the PRNG by calling 16734 RAND_set_rand_method would be impossible. 16735 16736 *Bodo Moeller* 16737 16738 * Don't let DSA_generate_key() enter an infinite loop if the random 16739 number generation fails. 16740 16741 *Bodo Moeller* 16742 16743 * New 'rand' application for creating pseudo-random output. 16744 16745 *Bodo Moeller* 16746 16747 * Added configuration support for Linux/IA64 16748 16749 *Rolf Haberrecker <rolf@suse.de>* 16750 16751 * Assembler module support for Mingw32. 16752 16753 *Ulf Möller* 16754 16755 * Shared library support for HPUX (in shlib/). 16756 16757 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16758 16759 * Shared library support for Solaris gcc. 16760 16761 *Lutz Behnke <behnke@trustcenter.de>* 16762 16763### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16764 16765 * PKCS7_encrypt() was adding text MIME headers twice because they 16766 were added manually and by SMIME_crlf_copy(). 16767 16768 *Steve Henson* 16769 16770 * In bntest.c don't call BN_rand with zero bits argument. 16771 16772 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16773 16774 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16775 case was implemented. This caused BN_div_recp() to fail occasionally. 16776 16777 *Ulf Möller* 16778 16779 * Add an optional second argument to the set_label() in the perl 16780 assembly language builder. If this argument exists and is set 16781 to 1 it signals that the assembler should use a symbol whose 16782 scope is the entire file, not just the current function. This 16783 is needed with MASM which uses the format label:: for this scope. 16784 16785 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16786 16787 * Change the ASN1 types so they are typedefs by default. Before 16788 almost all types were #define'd to ASN1_STRING which was causing 16789 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16790 for example. 16791 16792 *Steve Henson* 16793 16794 * Change names of new functions to the new get1/get0 naming 16795 convention: After 'get1', the caller owns a reference count 16796 and has to call `..._free`; 'get0' returns a pointer to some 16797 data structure without incrementing reference counters. 16798 (Some of the existing 'get' functions increment a reference 16799 counter, some don't.) 16800 Similarly, 'set1' and 'add1' functions increase reference 16801 counters or duplicate objects. 16802 16803 *Steve Henson* 16804 16805 * Allow for the possibility of temp RSA key generation failure: 16806 the code used to assume it always worked and crashed on failure. 16807 16808 *Steve Henson* 16809 16810 * Fix potential buffer overrun problem in BIO_printf(). 16811 *Ulf Möller, using public domain code by Patrick Powell; problem 16812 pointed out by David Sacerdote <das33@cornell.edu>* 16813 16814 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16815 RAND_egd() and RAND_status(). In the command line application, 16816 the EGD socket can be specified like a seed file using RANDFILE 16817 or -rand. 16818 16819 *Ulf Möller* 16820 16821 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16822 Some CAs (e.g. Verisign) distribute certificates in this form. 16823 16824 *Steve Henson* 16825 16826 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16827 list to exclude them. This means that no special compilation option 16828 is needed to use anonymous DH: it just needs to be included in the 16829 cipher list. 16830 16831 *Steve Henson* 16832 16833 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16834 EVP_MD_type. The old functionality is available in a new macro called 16835 EVP_MD_md(). Change code that uses it and update docs. 16836 16837 *Steve Henson* 16838 16839 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16840 where the `void *` argument is replaced by a function pointer argument. 16841 Previously `void *` was abused to point to functions, which works on 16842 many platforms, but is not correct. As these functions are usually 16843 called by macros defined in OpenSSL header files, most source code 16844 should work without changes. 16845 16846 *Richard Levitte* 16847 16848 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16849 sections with information on -D... compiler switches used for 16850 compiling the library so that applications can see them. To enable 16851 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16852 must be defined. E.g., 16853 #define OPENSSL_ALGORITHM_DEFINES 16854 #include <openssl/opensslconf.h> 16855 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16856 16857 *Richard Levitte, Ulf and Bodo Möller* 16858 16859 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16860 record layer. 16861 16862 *Bodo Moeller* 16863 16864 * Change the 'other' type in certificate aux info to a STACK_OF 16865 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16866 the required ASN1 format: arbitrary types determined by an OID. 16867 16868 *Steve Henson* 16869 16870 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16871 argument to 'req'. This is not because the function is newer or 16872 better than others it just uses the work 'NEW' in the certificate 16873 request header lines. Some software needs this. 16874 16875 *Steve Henson* 16876 16877 * Reorganise password command line arguments: now passwords can be 16878 obtained from various sources. Delete the PEM_cb function and make 16879 it the default behaviour: i.e. if the callback is NULL and the 16880 usrdata argument is not NULL interpret it as a null terminated pass 16881 phrase. If usrdata and the callback are NULL then the pass phrase 16882 is prompted for as usual. 16883 16884 *Steve Henson* 16885 16886 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16887 the support is automatically enabled. The resulting binaries will 16888 autodetect the card and use it if present. 16889 16890 *Ben Laurie and Compaq Inc.* 16891 16892 * Work around for Netscape hang bug. This sends certificate request 16893 and server done in one record. Since this is perfectly legal in the 16894 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16895 the bugs/SSLv3 entry for more info. 16896 16897 *Steve Henson* 16898 16899 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16900 16901 *Andy Polyakov* 16902 16903 * Add -rand argument to smime and pkcs12 applications and read/write 16904 of seed file. 16905 16906 *Steve Henson* 16907 16908 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16909 16910 *Bodo Moeller* 16911 16912 * Add command line password options to the remaining applications. 16913 16914 *Steve Henson* 16915 16916 * Bug fix for BN_div_recp() for numerators with an even number of 16917 bits. 16918 16919 *Ulf Möller* 16920 16921 * More tests in bntest.c, and changed test_bn output. 16922 16923 *Ulf Möller* 16924 16925 * ./config recognizes MacOS X now. 16926 16927 *Andy Polyakov* 16928 16929 * Bug fix for BN_div() when the first words of num and divisor are 16930 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16931 16932 *Ulf Möller* 16933 16934 * Add support for various broken PKCS#8 formats, and command line 16935 options to produce them. 16936 16937 *Steve Henson* 16938 16939 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16940 get temporary BIGNUMs from a BN_CTX. 16941 16942 *Ulf Möller* 16943 16944 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16945 for p == 0. 16946 16947 *Ulf Möller* 16948 16949 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16950 include a #define from the old name to the new. The original intent 16951 was that statically linked binaries could for example just call 16952 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16953 link with digests. This never worked because SSLeay_add_all_digests() 16954 and SSLeay_add_all_ciphers() were in the same source file so calling 16955 one would link with the other. They are now in separate source files. 16956 16957 *Steve Henson* 16958 16959 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16960 16961 *Steve Henson* 16962 16963 * Use a less unusual form of the Miller-Rabin primality test (it used 16964 a binary algorithm for exponentiation integrated into the Miller-Rabin 16965 loop, our standard modexp algorithms are faster). 16966 16967 *Bodo Moeller* 16968 16969 * Support for the EBCDIC character set completed. 16970 16971 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16972 16973 * Source code cleanups: use const where appropriate, eliminate casts, 16974 use `void *` instead of `char *` in lhash. 16975 16976 *Ulf Möller* 16977 16978 * Bugfix: ssl3_send_server_key_exchange was not restartable 16979 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16980 this the server could overwrite ephemeral keys that the client 16981 has already seen). 16982 16983 *Bodo Moeller* 16984 16985 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16986 using 50 iterations of the Rabin-Miller test. 16987 16988 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16989 iterations of the Rabin-Miller test as required by the appendix 16990 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16991 As BN_is_prime_fasttest includes trial division, DSA parameter 16992 generation becomes much faster. 16993 16994 This implies a change for the callback functions in DSA_is_prime 16995 and DSA_generate_parameters: The callback function is called once 16996 for each positive witness in the Rabin-Miller test, not just 16997 occasionally in the inner loop; and the parameters to the 16998 callback function now provide an iteration count for the outer 16999 loop rather than for the current invocation of the inner loop. 17000 DSA_generate_parameters additionally can call the callback 17001 function with an 'iteration count' of -1, meaning that a 17002 candidate has passed the trial division test (when q is generated 17003 from an application-provided seed, trial division is skipped). 17004 17005 *Bodo Moeller* 17006 17007 * New function BN_is_prime_fasttest that optionally does trial 17008 division before starting the Rabin-Miller test and has 17009 an additional BN_CTX * argument (whereas BN_is_prime always 17010 has to allocate at least one BN_CTX). 17011 'callback(1, -1, cb_arg)' is called when a number has passed the 17012 trial division stage. 17013 17014 *Bodo Moeller* 17015 17016 * Fix for bug in CRL encoding. The validity dates weren't being handled 17017 as ASN1_TIME. 17018 17019 *Steve Henson* 17020 17021 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 17022 17023 *Steve Henson* 17024 17025 * New function BN_pseudo_rand(). 17026 17027 *Ulf Möller* 17028 17029 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 17030 bignum version of BN_from_montgomery() with the working code from 17031 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 17032 the comments. 17033 17034 *Ulf Möller* 17035 17036 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 17037 made it impossible to use the same SSL_SESSION data structure in 17038 SSL2 clients in multiple threads. 17039 17040 *Bodo Moeller* 17041 17042 * The return value of RAND_load_file() no longer counts bytes obtained 17043 by stat(). RAND_load_file(..., -1) is new and uses the complete file 17044 to seed the PRNG (previously an explicit byte count was required). 17045 17046 *Ulf Möller, Bodo Möller* 17047 17048 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 17049 used `char *` instead of `void *` and had casts all over the place. 17050 17051 *Steve Henson* 17052 17053 * Make BN_generate_prime() return NULL on error if ret!=NULL. 17054 17055 *Ulf Möller* 17056 17057 * Retain source code compatibility for BN_prime_checks macro: 17058 BN_is_prime(..., BN_prime_checks, ...) now uses 17059 BN_prime_checks_for_size to determine the appropriate number of 17060 Rabin-Miller iterations. 17061 17062 *Ulf Möller* 17063 17064 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 17065 DH_CHECK_P_NOT_SAFE_PRIME. 17066 (Check if this is true? OpenPGP calls them "strong".) 17067 17068 *Ulf Möller* 17069 17070 * Merge the functionality of "dh" and "gendh" programs into a new program 17071 "dhparam". The old programs are retained for now but will handle DH keys 17072 (instead of parameters) in future. 17073 17074 *Steve Henson* 17075 17076 * Make the ciphers, s_server and s_client programs check the return values 17077 when a new cipher list is set. 17078 17079 *Steve Henson* 17080 17081 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 17082 ciphers. Before when the 56bit ciphers were enabled the sorting was 17083 wrong. 17084 17085 The syntax for the cipher sorting has been extended to support sorting by 17086 cipher-strength (using the strength_bits hard coded in the tables). 17087 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 17088 17089 Fix a bug in the cipher-command parser: when supplying a cipher command 17090 string with an "undefined" symbol (neither command nor alphanumeric 17091 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 17092 an error is flagged. 17093 17094 Due to the strength-sorting extension, the code of the 17095 ssl_create_cipher_list() function was completely rearranged. I hope that 17096 the readability was also increased :-) 17097 17098 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 17099 17100 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 17101 for the first serial number and places 2 in the serial number file. This 17102 avoids problems when the root CA is created with serial number zero and 17103 the first user certificate has the same issuer name and serial number 17104 as the root CA. 17105 17106 *Steve Henson* 17107 17108 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 17109 the new code. Add documentation for this stuff. 17110 17111 *Steve Henson* 17112 17113 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 17114 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 17115 structures and behave in an analogous way to the X509v3 functions: 17116 they shouldn't be called directly but wrapper functions should be used 17117 instead. 17118 17119 So we also now have some wrapper functions that call the X509at functions 17120 when passed certificate requests. (TO DO: similar things can be done with 17121 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 17122 things. Some of these need some d2i or i2d and print functionality 17123 because they handle more complex structures.) 17124 17125 *Steve Henson* 17126 17127 * Add missing #ifndefs that caused missing symbols when building libssl 17128 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 17129 NO_RSA in `ssl/s2*.c`. 17130 17131 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 17132 17133 * Precautions against using the PRNG uninitialized: RAND_bytes() now 17134 has a return value which indicates the quality of the random data 17135 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 17136 error queue. New function RAND_pseudo_bytes() generates output that is 17137 guaranteed to be unique but not unpredictable. RAND_add is like 17138 RAND_seed, but takes an extra argument for an entropy estimate 17139 (RAND_seed always assumes full entropy). 17140 17141 *Ulf Möller* 17142 17143 * Do more iterations of Rabin-Miller probable prime test (specifically, 17144 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 17145 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 17146 in crypto/bn/bn_prime.c for the complete table). This guarantees a 17147 false-positive rate of at most 2^-80 for random input. 17148 17149 *Bodo Moeller* 17150 17151 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 17152 17153 *Bodo Moeller* 17154 17155 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 17156 in the 0.9.5 release), this returns the chain 17157 from an X509_CTX structure with a dup of the stack and all 17158 the X509 reference counts upped: so the stack will exist 17159 after X509_CTX_cleanup() has been called. Modify pkcs12.c 17160 to use this. 17161 17162 Also make SSL_SESSION_print() print out the verify return 17163 code. 17164 17165 *Steve Henson* 17166 17167 * Add manpage for the pkcs12 command. Also change the default 17168 behaviour so MAC iteration counts are used unless the new 17169 -nomaciter option is used. This improves file security and 17170 only older versions of MSIE (4.0 for example) need it. 17171 17172 *Steve Henson* 17173 17174 * Honor the no-xxx Configure options when creating .DEF files. 17175 17176 *Ulf Möller* 17177 17178 * Add PKCS#10 attributes to field table: challengePassword, 17179 unstructuredName and unstructuredAddress. These are taken from 17180 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 17181 international characters are used. 17182 17183 More changes to X509_ATTRIBUTE code: allow the setting of types 17184 based on strings. Remove the 'loc' parameter when adding 17185 attributes because these will be a SET OF encoding which is sorted 17186 in ASN1 order. 17187 17188 *Steve Henson* 17189 17190 * Initial changes to the 'req' utility to allow request generation 17191 automation. This will allow an application to just generate a template 17192 file containing all the field values and have req construct the 17193 request. 17194 17195 Initial support for X509_ATTRIBUTE handling. Stacks of these are 17196 used all over the place including certificate requests and PKCS#7 17197 structures. They are currently handled manually where necessary with 17198 some primitive wrappers for PKCS#7. The new functions behave in a 17199 manner analogous to the X509 extension functions: they allow 17200 attributes to be looked up by NID and added. 17201 17202 Later something similar to the X509V3 code would be desirable to 17203 automatically handle the encoding, decoding and printing of the 17204 more complex types. The string types like challengePassword can 17205 be handled by the string table functions. 17206 17207 Also modified the multi byte string table handling. Now there is 17208 a 'global mask' which masks out certain types. The table itself 17209 can use the flag STABLE_NO_MASK to ignore the mask setting: this 17210 is useful when for example there is only one permissible type 17211 (as in countryName) and using the mask might result in no valid 17212 types at all. 17213 17214 *Steve Henson* 17215 17216 * Clean up 'Finished' handling, and add functions SSL_get_finished and 17217 SSL_get_peer_finished to allow applications to obtain the latest 17218 Finished messages sent to the peer or expected from the peer, 17219 respectively. (SSL_get_peer_finished is usually the Finished message 17220 actually received from the peer, otherwise the protocol will be aborted.) 17221 17222 As the Finished message are message digests of the complete handshake 17223 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 17224 be used for external authentication procedures when the authentication 17225 provided by SSL/TLS is not desired or is not enough. 17226 17227 *Bodo Moeller* 17228 17229 * Enhanced support for Alpha Linux is added. Now ./config checks if 17230 the host supports BWX extension and if Compaq C is present on the 17231 $PATH. Just exploiting of the BWX extension results in 20-30% 17232 performance kick for some algorithms, e.g. DES and RC4 to mention 17233 a couple. Compaq C in turn generates ~20% faster code for MD5 and 17234 SHA1. 17235 17236 *Andy Polyakov* 17237 17238 * Add support for MS "fast SGC". This is arguably a violation of the 17239 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 17240 weak crypto and after checking the certificate is SGC a second one 17241 with strong crypto. MS SGC stops the first handshake after receiving 17242 the server certificate message and sends a second client hello. Since 17243 a server will typically do all the time consuming operations before 17244 expecting any further messages from the client (server key exchange 17245 is the most expensive) there is little difference between the two. 17246 17247 To get OpenSSL to support MS SGC we have to permit a second client 17248 hello message after we have sent server done. In addition we have to 17249 reset the MAC if we do get this second client hello. 17250 17251 *Steve Henson* 17252 17253 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 17254 if a DER encoded private key is RSA or DSA traditional format. Changed 17255 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 17256 format DER encoded private key. Newer code should use PKCS#8 format which 17257 has the key type encoded in the ASN1 structure. Added DER private key 17258 support to pkcs8 application. 17259 17260 *Steve Henson* 17261 17262 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 17263 ciphersuites has been selected (as required by the SSL 3/TLS 1 17264 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 17265 is set, we interpret this as a request to violate the specification 17266 (the worst that can happen is a handshake failure, and 'correct' 17267 behaviour would result in a handshake failure anyway). 17268 17269 *Bodo Moeller* 17270 17271 * In SSL_CTX_add_session, take into account that there might be multiple 17272 SSL_SESSION structures with the same session ID (e.g. when two threads 17273 concurrently obtain them from an external cache). 17274 The internal cache can handle only one SSL_SESSION with a given ID, 17275 so if there's a conflict, we now throw out the old one to achieve 17276 consistency. 17277 17278 *Bodo Moeller* 17279 17280 * Add OIDs for idea and blowfish in CBC mode. This will allow both 17281 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 17282 some routines that use cipher OIDs: some ciphers do not have OIDs 17283 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 17284 example. 17285 17286 *Steve Henson* 17287 17288 * Simplify the trust setting structure and code. Now we just have 17289 two sequences of OIDs for trusted and rejected settings. These will 17290 typically have values the same as the extended key usage extension 17291 and any application specific purposes. 17292 17293 The trust checking code now has a default behaviour: it will just 17294 check for an object with the same NID as the passed id. Functions can 17295 be provided to override either the default behaviour or the behaviour 17296 for a given id. SSL client, server and email already have functions 17297 in place for compatibility: they check the NID and also return "trusted" 17298 if the certificate is self signed. 17299 17300 *Steve Henson* 17301 17302 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 17303 traditional format into an EVP_PKEY structure. 17304 17305 *Steve Henson* 17306 17307 * Add a password callback function PEM_cb() which either prompts for 17308 a password if usr_data is NULL or otherwise assumes it is a null 17309 terminated password. Allow passwords to be passed on command line 17310 environment or config files in a few more utilities. 17311 17312 *Steve Henson* 17313 17314 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 17315 keys. Add some short names for PKCS#8 PBE algorithms and allow them 17316 to be specified on the command line for the pkcs8 and pkcs12 utilities. 17317 Update documentation. 17318 17319 *Steve Henson* 17320 17321 * Support for ASN1 "NULL" type. This could be handled before by using 17322 ASN1_TYPE but there wasn't any function that would try to read a NULL 17323 and produce an error if it couldn't. For compatibility we also have 17324 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 17325 don't allocate anything because they don't need to. 17326 17327 *Steve Henson* 17328 17329 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 17330 for details. 17331 17332 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 17333 17334 * Rebuild of the memory allocation routines used by OpenSSL code and 17335 possibly others as well. The purpose is to make an interface that 17336 provide hooks so anyone can build a separate set of allocation and 17337 deallocation routines to be used by OpenSSL, for example memory 17338 pool implementations, or something else, which was previously hard 17339 since Malloc(), Realloc() and Free() were defined as macros having 17340 the values malloc, realloc and free, respectively (except for Win32 17341 compilations). The same is provided for memory debugging code. 17342 OpenSSL already comes with functionality to find memory leaks, but 17343 this gives people a chance to debug other memory problems. 17344 17345 With these changes, a new set of functions and macros have appeared: 17346 17347 CRYPTO_set_mem_debug_functions() [F] 17348 CRYPTO_get_mem_debug_functions() [F] 17349 CRYPTO_dbg_set_options() [F] 17350 CRYPTO_dbg_get_options() [F] 17351 CRYPTO_malloc_debug_init() [M] 17352 17353 The memory debug functions are NULL by default, unless the library 17354 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 17355 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 17356 gives the standard debugging functions that come with OpenSSL) or 17357 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 17358 provided by the library user) must be used. When the standard 17359 debugging functions are used, CRYPTO_dbg_set_options can be used to 17360 request additional information: 17361 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 17362 the CRYPTO_MDEBUG_xxx macro when compiling the library. 17363 17364 Also, things like CRYPTO_set_mem_functions will always give the 17365 expected result (the new set of functions is used for allocation 17366 and deallocation) at all times, regardless of platform and compiler 17367 options. 17368 17369 To finish it up, some functions that were never use in any other 17370 way than through macros have a new API and new semantic: 17371 17372 CRYPTO_dbg_malloc() 17373 CRYPTO_dbg_realloc() 17374 CRYPTO_dbg_free() 17375 17376 All macros of value have retained their old syntax. 17377 17378 *Richard Levitte and Bodo Moeller* 17379 17380 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17381 ordering of SMIMECapabilities wasn't in "strength order" and there 17382 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17383 algorithm. 17384 17385 *Steve Henson* 17386 17387 * Some ASN1 types with illegal zero length encoding (INTEGER, 17388 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17389 17390 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17391 17392 * Merge in my S/MIME library for OpenSSL. This provides a simple 17393 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17394 functionality to handle multipart/signed properly) and a utility 17395 called 'smime' to call all this stuff. This is based on code I 17396 originally wrote for Celo who have kindly allowed it to be 17397 included in OpenSSL. 17398 17399 *Steve Henson* 17400 17401 * Add variants des_set_key_checked and des_set_key_unchecked of 17402 des_set_key (aka des_key_sched). Global variable des_check_key 17403 decides which of these is called by des_set_key; this way 17404 des_check_key behaves as it always did, but applications and 17405 the library itself, which was buggy for des_check_key == 1, 17406 have a cleaner way to pick the version they need. 17407 17408 *Bodo Moeller* 17409 17410 * New function PKCS12_newpass() which changes the password of a 17411 PKCS12 structure. 17412 17413 *Steve Henson* 17414 17415 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17416 dynamic mix. In both cases the ids can be used as an index into the 17417 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17418 functions so they accept a list of the field values and the 17419 application doesn't need to directly manipulate the X509_TRUST 17420 structure. 17421 17422 *Steve Henson* 17423 17424 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17425 need initialising. 17426 17427 *Steve Henson* 17428 17429 * Modify the way the V3 extension code looks up extensions. This now 17430 works in a similar way to the object code: we have some "standard" 17431 extensions in a static table which is searched with OBJ_bsearch() 17432 and the application can add dynamic ones if needed. The file 17433 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17434 updated whenever a new extension is added to the core code and kept 17435 in ext_nid order. There is a simple program 'tabtest.c' which checks 17436 this. New extensions are not added too often so this file can readily 17437 be maintained manually. 17438 17439 There are two big advantages in doing things this way. The extensions 17440 can be looked up immediately and no longer need to be "added" using 17441 X509V3_add_standard_extensions(): this function now does nothing. 17442 Side note: I get *lots* of email saying the extension code doesn't 17443 work because people forget to call this function. 17444 Also no dynamic allocation is done unless new extensions are added: 17445 so if we don't add custom extensions there is no need to call 17446 X509V3_EXT_cleanup(). 17447 17448 *Steve Henson* 17449 17450 * Modify enc utility's salting as follows: make salting the default. Add a 17451 magic header, so unsalted files fail gracefully instead of just decrypting 17452 to garbage. This is because not salting is a big security hole, so people 17453 should be discouraged from doing it. 17454 17455 *Ben Laurie* 17456 17457 * Fixes and enhancements to the 'x509' utility. It allowed a message 17458 digest to be passed on the command line but it only used this 17459 parameter when signing a certificate. Modified so all relevant 17460 operations are affected by the digest parameter including the 17461 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17462 DSA key was used because it didn't fix the digest. 17463 17464 *Steve Henson* 17465 17466 * Initial certificate chain verify code. Currently tests the untrusted 17467 certificates for consistency with the verify purpose (which is set 17468 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17469 17470 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17471 this is because it will reject chains with invalid extensions whereas 17472 every previous version of OpenSSL and SSLeay made no checks at all. 17473 17474 Trust code: checks the root CA for the relevant trust settings. Trust 17475 settings have an initial value consistent with the verify purpose: e.g. 17476 if the verify purpose is for SSL client use it expects the CA to be 17477 trusted for SSL client use. However the default value can be changed to 17478 permit custom trust settings: one example of this would be to only trust 17479 certificates from a specific "secure" set of CAs. 17480 17481 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17482 which should be used for version portability: especially since the 17483 verify structure is likely to change more often now. 17484 17485 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17486 to set them. If not set then assume SSL clients will verify SSL servers 17487 and vice versa. 17488 17489 Two new options to the verify program: -untrusted allows a set of 17490 untrusted certificates to be passed in and -purpose which sets the 17491 intended purpose of the certificate. If a purpose is set then the 17492 new chain verify code is used to check extension consistency. 17493 17494 *Steve Henson* 17495 17496 * Support for the authority information access extension. 17497 17498 *Steve Henson* 17499 17500 * Modify RSA and DSA PEM read routines to transparently handle 17501 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17502 public keys in a format compatible with certificate 17503 SubjectPublicKeyInfo structures. Unfortunately there were already 17504 functions called *_PublicKey_* which used various odd formats so 17505 these are retained for compatibility: however the DSA variants were 17506 never in a public release so they have been deleted. Changed dsa/rsa 17507 utilities to handle the new format: note no releases ever handled public 17508 keys so we should be OK. 17509 17510 The primary motivation for this change is to avoid the same fiasco 17511 that dogs private keys: there are several incompatible private key 17512 formats some of which are standard and some OpenSSL specific and 17513 require various evil hacks to allow partial transparent handling and 17514 even then it doesn't work with DER formats. Given the option anything 17515 other than PKCS#8 should be dumped: but the other formats have to 17516 stay in the name of compatibility. 17517 17518 With public keys and the benefit of hindsight one standard format 17519 is used which works with EVP_PKEY, RSA or DSA structures: though 17520 it clearly returns an error if you try to read the wrong kind of key. 17521 17522 Added a -pubkey option to the 'x509' utility to output the public key. 17523 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17524 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17525 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17526 that do the same as the `EVP_PKEY_assign_*()` except they up the 17527 reference count of the added key (they don't "swallow" the 17528 supplied key). 17529 17530 *Steve Henson* 17531 17532 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17533 CRLs would fail if the file contained no certificates or no CRLs: 17534 added a new function to read in both types and return the number 17535 read: this means that if none are read it will be an error. The 17536 DER versions of the certificate and CRL reader would always fail 17537 because it isn't possible to mix certificates and CRLs in DER format 17538 without choking one or the other routine. Changed this to just read 17539 a certificate: this is the best we can do. Also modified the code 17540 in `apps/verify.c` to take notice of return codes: it was previously 17541 attempting to read in certificates from NULL pointers and ignoring 17542 any errors: this is one reason why the cert and CRL reader seemed 17543 to work. It doesn't check return codes from the default certificate 17544 routines: these may well fail if the certificates aren't installed. 17545 17546 *Steve Henson* 17547 17548 * Code to support otherName option in GeneralName. 17549 17550 *Steve Henson* 17551 17552 * First update to verify code. Change the verify utility 17553 so it warns if it is passed a self signed certificate: 17554 for consistency with the normal behaviour. X509_verify 17555 has been modified to it will now verify a self signed 17556 certificate if *exactly* the same certificate appears 17557 in the store: it was previously impossible to trust a 17558 single self signed certificate. This means that: 17559 openssl verify ss.pem 17560 now gives a warning about a self signed certificate but 17561 openssl verify -CAfile ss.pem ss.pem 17562 is OK. 17563 17564 *Steve Henson* 17565 17566 * For servers, store verify_result in SSL_SESSION data structure 17567 (and add it to external session representation). 17568 This is needed when client certificate verifications fails, 17569 but an application-provided verification callback (set by 17570 SSL_CTX_set_cert_verify_callback) allows accepting the session 17571 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17572 but returns 1): When the session is reused, we have to set 17573 ssl->verify_result to the appropriate error code to avoid 17574 security holes. 17575 17576 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17577 17578 * Fix a bug in the new PKCS#7 code: it didn't consider the 17579 case in PKCS7_dataInit() where the signed PKCS7 structure 17580 didn't contain any existing data because it was being created. 17581 17582 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17583 17584 * Add a salt to the key derivation routines in enc.c. This 17585 forms the first 8 bytes of the encrypted file. Also add a 17586 -S option to allow a salt to be input on the command line. 17587 17588 *Steve Henson* 17589 17590 * New function X509_cmp(). Oddly enough there wasn't a function 17591 to compare two certificates. We do this by working out the SHA1 17592 hash and comparing that. X509_cmp() will be needed by the trust 17593 code. 17594 17595 *Steve Henson* 17596 17597 * SSL_get1_session() is like SSL_get_session(), but increments 17598 the reference count in the SSL_SESSION returned. 17599 17600 *Geoff Thorpe <geoff@eu.c2.net>* 17601 17602 * Fix for 'req': it was adding a null to request attributes. 17603 Also change the X509_LOOKUP and X509_INFO code to handle 17604 certificate auxiliary information. 17605 17606 *Steve Henson* 17607 17608 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17609 the 'enc' command. 17610 17611 *Steve Henson* 17612 17613 * Add the possibility to add extra information to the memory leak 17614 detecting output, to form tracebacks, showing from where each 17615 allocation was originated: CRYPTO_push_info("constant string") adds 17616 the string plus current file name and line number to a per-thread 17617 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17618 is like calling CYRPTO_pop_info() until the stack is empty. 17619 Also updated memory leak detection code to be multi-thread-safe. 17620 17621 *Richard Levitte* 17622 17623 * Add options -text and -noout to pkcs7 utility and delete the 17624 encryption options which never did anything. Update docs. 17625 17626 *Steve Henson* 17627 17628 * Add options to some of the utilities to allow the pass phrase 17629 to be included on either the command line (not recommended on 17630 OSes like Unix) or read from the environment. Update the 17631 manpages and fix a few bugs. 17632 17633 *Steve Henson* 17634 17635 * Add a few manpages for some of the openssl commands. 17636 17637 *Steve Henson* 17638 17639 * Fix the -revoke option in ca. It was freeing up memory twice, 17640 leaking and not finding already revoked certificates. 17641 17642 *Steve Henson* 17643 17644 * Extensive changes to support certificate auxiliary information. 17645 This involves the use of X509_CERT_AUX structure and X509_AUX 17646 functions. An X509_AUX function such as PEM_read_X509_AUX() 17647 can still read in a certificate file in the usual way but it 17648 will also read in any additional "auxiliary information". By 17649 doing things this way a fair degree of compatibility can be 17650 retained: existing certificates can have this information added 17651 using the new 'x509' options. 17652 17653 Current auxiliary information includes an "alias" and some trust 17654 settings. The trust settings will ultimately be used in enhanced 17655 certificate chain verification routines: currently a certificate 17656 can only be trusted if it is self signed and then it is trusted 17657 for all purposes. 17658 17659 *Steve Henson* 17660 17661 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17662 The problem was that one of the replacement routines had not been working 17663 since SSLeay releases. For now the offending routine has been replaced 17664 with non-optimised assembler. Even so, this now gives around 95% 17665 performance improvement for 1024 bit RSA signs. 17666 17667 *Mark Cox* 17668 17669 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17670 handling. Most clients have the effective key size in bits equal to 17671 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17672 A few however don't do this and instead use the size of the decrypted key 17673 to determine the RC2 key length and the AlgorithmIdentifier to determine 17674 the effective key length. In this case the effective key length can still 17675 be 40 bits but the key length can be 168 bits for example. This is fixed 17676 by manually forcing an RC2 key into the EVP_PKEY structure because the 17677 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17678 the key length and effective key length are equal. 17679 17680 *Steve Henson* 17681 17682 * Add a bunch of functions that should simplify the creation of 17683 X509_NAME structures. Now you should be able to do: 17684 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17685 and have it automatically work out the correct field type and fill in 17686 the structures. The more adventurous can try: 17687 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17688 and it will (hopefully) work out the correct multibyte encoding. 17689 17690 *Steve Henson* 17691 17692 * Change the 'req' utility to use the new field handling and multibyte 17693 copy routines. Before the DN field creation was handled in an ad hoc 17694 way in req, ca, and x509 which was rather broken and didn't support 17695 BMPStrings or UTF8Strings. Since some software doesn't implement 17696 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17697 using the dirstring_type option. See the new comment in the default 17698 openssl.cnf for more info. 17699 17700 *Steve Henson* 17701 17702 * Make crypto/rand/md_rand.c more robust: 17703 - Assure unique random numbers after fork(). 17704 - Make sure that concurrent threads access the global counter and 17705 md serializably so that we never lose entropy in them 17706 or use exactly the same state in multiple threads. 17707 Access to the large state is not always serializable because 17708 the additional locking could be a performance killer, and 17709 md should be large enough anyway. 17710 17711 *Bodo Moeller* 17712 17713 * New file `apps/app_rand.c` with commonly needed functionality 17714 for handling the random seed file. 17715 17716 Use the random seed file in some applications that previously did not: 17717 ca, 17718 dsaparam -genkey (which also ignored its '-rand' option), 17719 s_client, 17720 s_server, 17721 x509 (when signing). 17722 Except on systems with /dev/urandom, it is crucial to have a random 17723 seed file at least for key creation, DSA signing, and for DH exchanges; 17724 for RSA signatures we could do without one. 17725 17726 gendh and gendsa (unlike genrsa) used to read only the first byte 17727 of each file listed in the '-rand' option. The function as previously 17728 found in genrsa is now in app_rand.c and is used by all programs 17729 that support '-rand'. 17730 17731 *Bodo Moeller* 17732 17733 * In RAND_write_file, use mode 0600 for creating files; 17734 don't just chmod when it may be too late. 17735 17736 *Bodo Moeller* 17737 17738 * Report an error from X509_STORE_load_locations 17739 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17740 17741 *Bill Perry* 17742 17743 * New function ASN1_mbstring_copy() this copies a string in either 17744 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17745 into an ASN1_STRING type. A mask of permissible types is passed 17746 and it chooses the "minimal" type to use or an error if not type 17747 is suitable. 17748 17749 *Steve Henson* 17750 17751 * Add function equivalents to the various macros in asn1.h. The old 17752 macros are retained with an `M_` prefix. Code inside the library can 17753 use the `M_` macros. External code (including the openssl utility) 17754 should *NOT* in order to be "shared library friendly". 17755 17756 *Steve Henson* 17757 17758 * Add various functions that can check a certificate's extensions 17759 to see if it usable for various purposes such as SSL client, 17760 server or S/MIME and CAs of these types. This is currently 17761 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17762 verification. Also added a -purpose flag to x509 utility to 17763 print out all the purposes. 17764 17765 *Steve Henson* 17766 17767 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17768 functions. 17769 17770 *Steve Henson* 17771 17772 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17773 for, obtain and decode and extension and obtain its critical flag. 17774 This allows all the necessary extension code to be handled in a 17775 single function call. 17776 17777 *Steve Henson* 17778 17779 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17780 platforms. See crypto/rc4/rc4_enc.c for further details. 17781 17782 *Andy Polyakov* 17783 17784 * New -noout option to asn1parse. This causes no output to be produced 17785 its main use is when combined with -strparse and -out to extract data 17786 from a file (which may not be in ASN.1 format). 17787 17788 *Steve Henson* 17789 17790 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17791 when producing the local key id. 17792 17793 *Richard Levitte <levitte@stacken.kth.se>* 17794 17795 * New option -dhparam in s_server. This allows a DH parameter file to be 17796 stated explicitly. If it is not stated then it tries the first server 17797 certificate file. The previous behaviour hard coded the filename 17798 "server.pem". 17799 17800 *Steve Henson* 17801 17802 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17803 a public key to be input or output. For example: 17804 openssl rsa -in key.pem -pubout -out pubkey.pem 17805 Also added necessary DSA public key functions to handle this. 17806 17807 *Steve Henson* 17808 17809 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17810 in the message. This was handled by allowing 17811 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17812 17813 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17814 17815 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17816 to the end of the strings whereas this didn't. This would cause problems 17817 if strings read with d2i_ASN1_bytes() were later modified. 17818 17819 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17820 17821 * Fix for base64 decode bug. When a base64 bio reads only one line of 17822 data and it contains EOF it will end up returning an error. This is 17823 caused by input 46 bytes long. The cause is due to the way base64 17824 BIOs find the start of base64 encoded data. They do this by trying a 17825 trial decode on each line until they find one that works. When they 17826 do a flag is set and it starts again knowing it can pass all the 17827 data directly through the decoder. Unfortunately it doesn't reset 17828 the context it uses. This means that if EOF is reached an attempt 17829 is made to pass two EOFs through the context and this causes the 17830 resulting error. This can also cause other problems as well. As is 17831 usual with these problems it takes *ages* to find and the fix is 17832 trivial: move one line. 17833 17834 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17835 17836 * Ugly workaround to get s_client and s_server working under Windows. The 17837 old code wouldn't work because it needed to select() on sockets and the 17838 tty (for keypresses and to see if data could be written). Win32 only 17839 supports select() on sockets so we select() with a 1s timeout on the 17840 sockets and then see if any characters are waiting to be read, if none 17841 are present then we retry, we also assume we can always write data to 17842 the tty. This isn't nice because the code then blocks until we've 17843 received a complete line of data and it is effectively polling the 17844 keyboard at 1s intervals: however it's quite a bit better than not 17845 working at all :-) A dedicated Windows application might handle this 17846 with an event loop for example. 17847 17848 *Steve Henson* 17849 17850 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17851 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17852 will be called when RSA_sign() and RSA_verify() are used. This is useful 17853 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17854 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17855 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17856 This necessitated the support of an extra signature type NID_md5_sha1 17857 for SSL signatures and modifications to the SSL library to use it instead 17858 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17859 17860 *Steve Henson* 17861 17862 * Add new -verify -CAfile and -CApath options to the crl program, these 17863 will lookup a CRL issuers certificate and verify the signature in a 17864 similar way to the verify program. Tidy up the crl program so it 17865 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17866 less strict. It will now permit CRL extensions even if it is not 17867 a V2 CRL: this will allow it to tolerate some broken CRLs. 17868 17869 *Steve Henson* 17870 17871 * Initialize all non-automatic variables each time one of the openssl 17872 sub-programs is started (this is necessary as they may be started 17873 multiple times from the "OpenSSL>" prompt). 17874 17875 *Lennart Bang, Bodo Moeller* 17876 17877 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17878 removing all other RSA functionality (this is what NO_RSA does). This 17879 is so (for example) those in the US can disable those operations covered 17880 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17881 key generation. 17882 17883 *Steve Henson* 17884 17885 * Non-copying interface to BIO pairs. 17886 (still largely untested) 17887 17888 *Bodo Moeller* 17889 17890 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17891 ASCII string. This was handled independently in various places before. 17892 17893 *Steve Henson* 17894 17895 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17896 UTF8 strings a character at a time. 17897 17898 *Steve Henson* 17899 17900 * Use client_version from client hello to select the protocol 17901 (s23_srvr.c) and for RSA client key exchange verification 17902 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17903 17904 *Bodo Moeller* 17905 17906 * Add various utility functions to handle SPKACs, these were previously 17907 handled by poking round in the structure internals. Added new function 17908 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17909 print, verify and generate SPKACs. Based on an original idea from 17910 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17911 17912 *Steve Henson* 17913 17914 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17915 17916 *Andy Polyakov* 17917 17918 * Allow the config file extension section to be overwritten on the 17919 command line. Based on an original idea from Massimiliano Pala 17920 <madwolf@comune.modena.it>. The new option is called -extensions 17921 and can be applied to ca, req and x509. Also -reqexts to override 17922 the request extensions in req and -crlexts to override the crl extensions 17923 in ca. 17924 17925 *Steve Henson* 17926 17927 * Add new feature to the SPKAC handling in ca. Now you can include 17928 the same field multiple times by preceding it by "XXXX." for example: 17929 1.OU="Unit name 1" 17930 2.OU="Unit name 2" 17931 this is the same syntax as used in the req config file. 17932 17933 *Steve Henson* 17934 17935 * Allow certificate extensions to be added to certificate requests. These 17936 are specified in a 'req_extensions' option of the req section of the 17937 config file. They can be printed out with the -text option to req but 17938 are otherwise ignored at present. 17939 17940 *Steve Henson* 17941 17942 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17943 data read consists of only the final block it would not decrypted because 17944 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17945 A misplaced 'break' also meant the decrypted final block might not be 17946 copied until the next read. 17947 17948 *Steve Henson* 17949 17950 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17951 a few extra parameters to the DH structure: these will be useful if 17952 for example we want the value of 'q' or implement X9.42 DH. 17953 17954 *Steve Henson* 17955 17956 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17957 provides hooks that allow the default DSA functions or functions on a 17958 "per key" basis to be replaced. This allows hardware acceleration and 17959 hardware key storage to be handled without major modification to the 17960 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17961 associated functions. 17962 17963 *Steve Henson* 17964 17965 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17966 as "read only": it can't be written to and the buffer it points to will 17967 not be freed. Reading from a read only BIO is much more efficient than 17968 a normal memory BIO. This was added because there are several times when 17969 an area of memory needs to be read from a BIO. The previous method was 17970 to create a memory BIO and write the data to it, this results in two 17971 copies of the data and an O(n^2) reading algorithm. There is a new 17972 function BIO_new_mem_buf() which creates a read only memory BIO from 17973 an area of memory. Also modified the PKCS#7 routines to use read only 17974 memory BIOs. 17975 17976 *Steve Henson* 17977 17978 * Bugfix: ssl23_get_client_hello did not work properly when called in 17979 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17980 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17981 but a retry condition occurred while trying to read the rest. 17982 17983 *Bodo Moeller* 17984 17985 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17986 NID_pkcs7_encrypted by default: this was wrong since this should almost 17987 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17988 the encrypted data type: this is a more sensible place to put it and it 17989 allows the PKCS#12 code to be tidied up that duplicated this 17990 functionality. 17991 17992 *Steve Henson* 17993 17994 * Changed obj_dat.pl script so it takes its input and output files on 17995 the command line. This should avoid shell escape redirection problems 17996 under Win32. 17997 17998 *Steve Henson* 17999 18000 * Initial support for certificate extension requests, these are included 18001 in things like Xenroll certificate requests. Included functions to allow 18002 extensions to be obtained and added. 18003 18004 *Steve Henson* 18005 18006 * -crlf option to s_client and s_server for sending newlines as 18007 CRLF (as required by many protocols). 18008 18009 *Bodo Moeller* 18010 18011### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 18012 18013 * Install libRSAglue.a when OpenSSL is built with RSAref. 18014 18015 *Ralf S. Engelschall* 18016 18017 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 18018 18019 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 18020 18021 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 18022 program. 18023 18024 *Steve Henson* 18025 18026 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 18027 DH parameters/keys (q is lost during that conversion, but the resulting 18028 DH parameters contain its length). 18029 18030 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 18031 much faster than DH_generate_parameters (which creates parameters 18032 where `p = 2*q + 1`), and also the smaller q makes DH computations 18033 much more efficient (160-bit exponentiation instead of 1024-bit 18034 exponentiation); so this provides a convenient way to support DHE 18035 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 18036 utter importance to use 18037 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 18038 or 18039 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 18040 when such DH parameters are used, because otherwise small subgroup 18041 attacks may become possible! 18042 18043 *Bodo Moeller* 18044 18045 * Avoid memory leak in i2d_DHparams. 18046 18047 *Bodo Moeller* 18048 18049 * Allow the -k option to be used more than once in the enc program: 18050 this allows the same encrypted message to be read by multiple recipients. 18051 18052 *Steve Henson* 18053 18054 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 18055 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 18056 it will always use the numerical form of the OID, even if it has a short 18057 or long name. 18058 18059 *Steve Henson* 18060 18061 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 18062 method only got called if p,q,dmp1,dmq1,iqmp components were present, 18063 otherwise bn_mod_exp was called. In the case of hardware keys for example 18064 no private key components need be present and it might store extra data 18065 in the RSA structure, which cannot be accessed from bn_mod_exp. 18066 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 18067 private key operations. 18068 18069 *Steve Henson* 18070 18071 * Added support for SPARC Linux. 18072 18073 *Andy Polyakov* 18074 18075 * pem_password_cb function type incompatibly changed from 18076 typedef int pem_password_cb(char *buf, int size, int rwflag); 18077 to 18078 ....(char *buf, int size, int rwflag, void *userdata); 18079 so that applications can pass data to their callbacks: 18080 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 18081 additional void * argument, which is just handed through whenever 18082 the password callback is called. 18083 18084 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 18085 18086 New function SSL_CTX_set_default_passwd_cb_userdata. 18087 18088 Compatibility note: As many C implementations push function arguments 18089 onto the stack in reverse order, the new library version is likely to 18090 interoperate with programs that have been compiled with the old 18091 pem_password_cb definition (PEM_whatever takes some data that 18092 happens to be on the stack as its last argument, and the callback 18093 just ignores this garbage); but there is no guarantee whatsoever that 18094 this will work. 18095 18096 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 18097 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 18098 problems not only on Windows, but also on some Unix platforms. 18099 To avoid problematic command lines, these definitions are now in an 18100 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 18101 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 18102 18103 *Bodo Moeller* 18104 18105 * MIPS III/IV assembler module is reimplemented. 18106 18107 *Andy Polyakov* 18108 18109 * More DES library cleanups: remove references to srand/rand and 18110 delete an unused file. 18111 18112 *Ulf Möller* 18113 18114 * Add support for the free Netwide assembler (NASM) under Win32, 18115 since not many people have MASM (ml) and it can be hard to obtain. 18116 This is currently experimental but it seems to work OK and pass all 18117 the tests. Check out INSTALL.W32 for info. 18118 18119 *Steve Henson* 18120 18121 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 18122 without temporary keys kept an extra copy of the server key, 18123 and connections with temporary keys did not free everything in case 18124 of an error. 18125 18126 *Bodo Moeller* 18127 18128 * New function RSA_check_key and new openssl rsa option -check 18129 for verifying the consistency of RSA keys. 18130 18131 *Ulf Moeller, Bodo Moeller* 18132 18133 * Various changes to make Win32 compile work: 18134 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 18135 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 18136 comparison" warnings. 18137 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 18138 18139 *Steve Henson* 18140 18141 * Add a debugging option to PKCS#5 v2 key generation function: when 18142 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 18143 derived keys are printed to stderr. 18144 18145 *Steve Henson* 18146 18147 * Copy the flags in ASN1_STRING_dup(). 18148 18149 *Roman E. Pavlov <pre@mo.msk.ru>* 18150 18151 * The x509 application mishandled signing requests containing DSA 18152 keys when the signing key was also DSA and the parameters didn't match. 18153 18154 It was supposed to omit the parameters when they matched the signing key: 18155 the verifying software was then supposed to automatically use the CA's 18156 parameters if they were absent from the end user certificate. 18157 18158 Omitting parameters is no longer recommended. The test was also 18159 the wrong way round! This was probably due to unusual behaviour in 18160 EVP_cmp_parameters() which returns 1 if the parameters match. 18161 This meant that parameters were omitted when they *didn't* match and 18162 the certificate was useless. Certificates signed with 'ca' didn't have 18163 this bug. 18164 18165 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 18166 18167 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 18168 The interface is as follows: 18169 Applications can use 18170 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 18171 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 18172 "off" is now the default. 18173 The library internally uses 18174 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 18175 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 18176 to disable memory-checking temporarily. 18177 18178 Some inconsistent states that previously were possible (and were 18179 even the default) are now avoided. 18180 18181 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 18182 with each memory chunk allocated; this is occasionally more helpful 18183 than just having a counter. 18184 18185 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 18186 18187 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 18188 extensions. 18189 18190 *Bodo Moeller* 18191 18192 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 18193 which largely parallels "options", but is for changing API behaviour, 18194 whereas "options" are about protocol behaviour. 18195 Initial "mode" flags are: 18196 18197 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 18198 a single record has been written. 18199 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 18200 retries use the same buffer location. 18201 (But all of the contents must be 18202 copied!) 18203 18204 *Bodo Moeller* 18205 18206 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 18207 worked. 18208 18209 * Fix problems with no-hmac etc. 18210 18211 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 18212 18213 * New functions RSA_get_default_method(), RSA_set_method() and 18214 RSA_get_method(). These allows replacement of RSA_METHODs without having 18215 to mess around with the internals of an RSA structure. 18216 18217 *Steve Henson* 18218 18219 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 18220 Also really enable memory leak checks in openssl.c and in some 18221 test programs. 18222 18223 *Chad C. Mulligan, Bodo Moeller* 18224 18225 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 18226 up the length of negative integers. This has now been simplified to just 18227 store the length when it is first determined and use it later, rather 18228 than trying to keep track of where data is copied and updating it to 18229 point to the end. 18230 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 18231 18232 * Add a new function PKCS7_signatureVerify. This allows the verification 18233 of a PKCS#7 signature but with the signing certificate passed to the 18234 function itself. This contrasts with PKCS7_dataVerify which assumes the 18235 certificate is present in the PKCS#7 structure. This isn't always the 18236 case: certificates can be omitted from a PKCS#7 structure and be 18237 distributed by "out of band" means (such as a certificate database). 18238 18239 *Steve Henson* 18240 18241 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 18242 function prototypes in pem.h, also change util/mkdef.pl to add the 18243 necessary function names. 18244 18245 *Steve Henson* 18246 18247 * mk1mf.pl (used by Windows builds) did not properly read the 18248 options set by Configure in the top level Makefile, and Configure 18249 was not even able to write more than one option correctly. 18250 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 18251 18252 *Bodo Moeller* 18253 18254 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 18255 file to be loaded from a BIO or FILE pointer. The BIO version will 18256 for example allow memory BIOs to contain config info. 18257 18258 *Steve Henson* 18259 18260 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 18261 Whoever hopes to achieve shared-library compatibility across versions 18262 must use this, not the compile-time macro. 18263 (Exercise 0.9.4: Which is the minimum library version required by 18264 such programs?) 18265 Note: All this applies only to multi-threaded programs, others don't 18266 need locks. 18267 18268 *Bodo Moeller* 18269 18270 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 18271 through a BIO pair triggered the default case, i.e. 18272 SSLerr(...,SSL_R_UNKNOWN_STATE). 18273 18274 *Bodo Moeller* 18275 18276 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 18277 can use the SSL library even if none of the specific BIOs is 18278 appropriate. 18279 18280 *Bodo Moeller* 18281 18282 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 18283 for the encoded length. 18284 18285 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 18286 18287 * Add initial documentation of the X509V3 functions. 18288 18289 *Steve Henson* 18290 18291 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 18292 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 18293 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 18294 secure PKCS#8 private key format with a high iteration count. 18295 18296 *Steve Henson* 18297 18298 * Fix determination of Perl interpreter: A perl or perl5 18299 *directory* in $PATH was also accepted as the interpreter. 18300 18301 *Ralf S. Engelschall* 18302 18303 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 18304 wrong with it but it was very old and did things like calling 18305 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 18306 unusual formatting. 18307 18308 *Steve Henson* 18309 18310 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 18311 to use the new extension code. 18312 18313 *Steve Henson* 18314 18315 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 18316 with macros. This should make it easier to change their form, add extra 18317 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 18318 constant. 18319 18320 *Steve Henson* 18321 18322 * Add to configuration table a new entry that can specify an alternative 18323 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 18324 according to Mark Crispin <MRC@Panda.COM>. 18325 18326 *Bodo Moeller* 18327 18328 * DES CBC did not update the IV. Weird. 18329 18330 *Ben Laurie* 18331lse 18332 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 18333 Changing the behaviour of the former might break existing programs -- 18334 where IV updating is needed, des_ncbc_encrypt can be used. 18335ndif 18336 18337 * When bntest is run from "make test" it drives bc to check its 18338 calculations, as well as internally checking them. If an internal check 18339 fails, it needs to cause bc to give a non-zero result or make test carries 18340 on without noticing the failure. Fixed. 18341 18342 *Ben Laurie* 18343 18344 * DES library cleanups. 18345 18346 *Ulf Möller* 18347 18348 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 18349 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 18350 ciphers. NOTE: although the key derivation function has been verified 18351 against some published test vectors it has not been extensively tested 18352 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 18353 of v2.0. 18354 18355 *Steve Henson* 18356 18357 * Instead of "mkdir -p", which is not fully portable, use new 18358 Perl script "util/mkdir-p.pl". 18359 18360 *Bodo Moeller* 18361 18362 * Rewrite the way password based encryption (PBE) is handled. It used to 18363 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 18364 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 18365 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 18366 the 'parameter' field of the AlgorithmIdentifier is passed to the 18367 underlying key generation function so it must do its own ASN1 parsing. 18368 This has also changed the EVP_PBE_CipherInit() function which now has a 18369 'parameter' argument instead of literal salt and iteration count values 18370 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 18371 18372 *Steve Henson* 18373 18374 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18375 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18376 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18377 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18378 value was just used as a "magic string" and not used directly its 18379 value doesn't matter. 18380 18381 *Steve Henson* 18382 18383 * Introduce some semblance of const correctness to BN. Shame C doesn't 18384 support mutable. 18385 18386 *Ben Laurie* 18387 18388 * "linux-sparc64" configuration (ultrapenguin). 18389 18390 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18391 "linux-sparc" configuration. 18392 18393 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18394 18395 * config now generates no-xxx options for missing ciphers. 18396 18397 *Ulf Möller* 18398 18399 * Support the EBCDIC character set (work in progress). 18400 File ebcdic.c not yet included because it has a different license. 18401 18402 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18403 18404 * Support BS2000/OSD-POSIX. 18405 18406 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18407 18408 * Make callbacks for key generation use `void *` instead of `char *`. 18409 18410 *Ben Laurie* 18411 18412 * Make S/MIME samples compile (not yet tested). 18413 18414 *Ben Laurie* 18415 18416 * Additional typesafe stacks. 18417 18418 *Ben Laurie* 18419 18420 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18421 18422 *Bodo Moeller* 18423 18424### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18425 18426 * New configuration variant "sco5-gcc". 18427 18428 * Updated some demos. 18429 18430 *Sean O Riordain, Wade Scholine* 18431 18432 * Add missing BIO_free at exit of pkcs12 application. 18433 18434 *Wu Zhigang* 18435 18436 * Fix memory leak in conf.c. 18437 18438 *Steve Henson* 18439 18440 * Updates for Win32 to assembler version of MD5. 18441 18442 *Steve Henson* 18443 18444 * Set #! path to perl in `apps/der_chop` to where we found it 18445 instead of using a fixed path. 18446 18447 *Bodo Moeller* 18448 18449 * SHA library changes for irix64-mips4-cc. 18450 18451 *Andy Polyakov* 18452 18453 * Improvements for VMS support. 18454 18455 *Richard Levitte* 18456 18457### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18458 18459 * Bignum library bug fix. IRIX 6 passes "make test" now! 18460 This also avoids the problems with SC4.2 and unpatched SC5. 18461 18462 *Andy Polyakov <appro@fy.chalmers.se>* 18463 18464 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18465 These are required because of the typesafe stack would otherwise break 18466 existing code. If old code used a structure member which used to be STACK 18467 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18468 sk_num or sk_value it would produce an error because the num, data members 18469 are not present in STACK_OF. Now it just produces a warning. sk_set 18470 replaces the old method of assigning a value to sk_value 18471 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18472 that does this will no longer work (and should use sk_set instead) but 18473 this could be regarded as a "questionable" behaviour anyway. 18474 18475 *Steve Henson* 18476 18477 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18478 correctly handle encrypted S/MIME data. 18479 18480 *Steve Henson* 18481 18482 * Change type of various DES function arguments from des_cblock 18483 (which means, in function argument declarations, pointer to char) 18484 to des_cblock * (meaning pointer to array with 8 char elements), 18485 which allows the compiler to do more typechecking; it was like 18486 that back in SSLeay, but with lots of ugly casts. 18487 18488 Introduce new type const_des_cblock. 18489 18490 *Bodo Moeller* 18491 18492 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18493 problems: find RecipientInfo structure that matches recipient certificate 18494 and initialise the ASN1 structures properly based on passed cipher. 18495 18496 *Steve Henson* 18497 18498 * Belatedly make the BN tests actually check the results. 18499 18500 *Ben Laurie* 18501 18502 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18503 to and from BNs: it was completely broken. New compilation option 18504 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18505 key elements as negative integers. 18506 18507 *Steve Henson* 18508 18509 * Reorganize and speed up MD5. 18510 18511 *Andy Polyakov <appro@fy.chalmers.se>* 18512 18513 * VMS support. 18514 18515 *Richard Levitte <richard@levitte.org>* 18516 18517 * New option -out to asn1parse to allow the parsed structure to be 18518 output to a file. This is most useful when combined with the -strparse 18519 option to examine the output of things like OCTET STRINGS. 18520 18521 *Steve Henson* 18522 18523 * Make SSL library a little more fool-proof by not requiring any longer 18524 that `SSL_set_{accept,connect}_state` be called before 18525 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18526 in many applications because usually everything *appeared* to work as 18527 intended anyway -- now it really works as intended). 18528 18529 *Bodo Moeller* 18530 18531 * Move openssl.cnf out of lib/. 18532 18533 *Ulf Möller* 18534 18535 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18536 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18537 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18538 18539 *Ralf S. Engelschall* 18540 18541 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18542 handle PKCS#7 enveloped data properly. 18543 18544 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18545 18546 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18547 copying pointers. The cert_st handling is changed by this in 18548 various ways (and thus what used to be known as ctx->default_cert 18549 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18550 any longer when s->cert does not give us what we need). 18551 ssl_cert_instantiate becomes obsolete by this change. 18552 As soon as we've got the new code right (possibly it already is?), 18553 we have solved a couple of bugs of the earlier code where s->cert 18554 was used as if it could not have been shared with other SSL structures. 18555 18556 Note that using the SSL API in certain dirty ways now will result 18557 in different behaviour than observed with earlier library versions: 18558 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18559 does not influence s as it used to. 18560 18561 In order to clean up things more thoroughly, inside SSL_SESSION 18562 we don't use CERT any longer, but a new structure SESS_CERT 18563 that holds per-session data (if available); currently, this is 18564 the peer's certificate chain and, for clients, the server's certificate 18565 and temporary key. CERT holds only those values that can have 18566 meaningful defaults in an SSL_CTX. 18567 18568 *Bodo Moeller* 18569 18570 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18571 from the internal representation. Various PKCS#7 fixes: remove some 18572 evil casts and set the enc_dig_alg field properly based on the signing 18573 key type. 18574 18575 *Steve Henson* 18576 18577 * Allow PKCS#12 password to be set from the command line or the 18578 environment. Let 'ca' get its config file name from the environment 18579 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18580 and 'x509'). 18581 18582 *Steve Henson* 18583 18584 * Allow certificate policies extension to use an IA5STRING for the 18585 organization field. This is contrary to the PKIX definition but 18586 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18587 extension option. 18588 18589 *Steve Henson* 18590 18591 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18592 without disallowing inline assembler and the like for non-pedantic builds. 18593 18594 *Ben Laurie* 18595 18596 * Support Borland C++ builder. 18597 18598 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18599 18600 * Support Mingw32. 18601 18602 *Ulf Möller* 18603 18604 * SHA-1 cleanups and performance enhancements. 18605 18606 *Andy Polyakov <appro@fy.chalmers.se>* 18607 18608 * Sparc v8plus assembler for the bignum library. 18609 18610 *Andy Polyakov <appro@fy.chalmers.se>* 18611 18612 * Accept any -xxx and +xxx compiler options in Configure. 18613 18614 *Ulf Möller* 18615 18616 * Update HPUX configuration. 18617 18618 *Anonymous* 18619 18620 * Add missing `sk_<type>_unshift()` function to safestack.h 18621 18622 *Ralf S. Engelschall* 18623 18624 * New function SSL_CTX_use_certificate_chain_file that sets the 18625 "extra_cert"s in addition to the certificate. (This makes sense 18626 only for "PEM" format files, as chains as a whole are not 18627 DER-encoded.) 18628 18629 *Bodo Moeller* 18630 18631 * Support verify_depth from the SSL API. 18632 x509_vfy.c had what can be considered an off-by-one-error: 18633 Its depth (which was not part of the external interface) 18634 was actually counting the number of certificates in a chain; 18635 now it really counts the depth. 18636 18637 *Bodo Moeller* 18638 18639 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18640 instead of X509err, which often resulted in confusing error 18641 messages since the error codes are not globally unique 18642 (e.g. an alleged error in ssl3_accept when a certificate 18643 didn't match the private key). 18644 18645 * New function SSL_CTX_set_session_id_context that allows to set a default 18646 value (so that you don't need SSL_set_session_id_context for each 18647 connection using the SSL_CTX). 18648 18649 *Bodo Moeller* 18650 18651 * OAEP decoding bug fix. 18652 18653 *Ulf Möller* 18654 18655 * Support INSTALL_PREFIX for package builders, as proposed by 18656 David Harris. 18657 18658 *Bodo Moeller* 18659 18660 * New Configure options "threads" and "no-threads". For systems 18661 where the proper compiler options are known (currently Solaris 18662 and Linux), "threads" is the default. 18663 18664 *Bodo Moeller* 18665 18666 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18667 18668 *Bodo Moeller* 18669 18670 * Install various scripts to $(OPENSSLDIR)/misc, not to 18671 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18672 such as /usr/local/bin. 18673 18674 *Bodo Moeller* 18675 18676 * "make linux-shared" to build shared libraries. 18677 18678 *Niels Poppe <niels@netbox.org>* 18679 18680 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18681 18682 *Ulf Möller* 18683 18684 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18685 extension adding in x509 utility. 18686 18687 *Steve Henson* 18688 18689 * Remove NOPROTO sections and error code comments. 18690 18691 *Ulf Möller* 18692 18693 * Partial rewrite of the DEF file generator to now parse the ANSI 18694 prototypes. 18695 18696 *Steve Henson* 18697 18698 * New Configure options --prefix=DIR and --openssldir=DIR. 18699 18700 *Ulf Möller* 18701 18702 * Complete rewrite of the error code script(s). It is all now handled 18703 by one script at the top level which handles error code gathering, 18704 header rewriting and C source file generation. It should be much better 18705 than the old method: it now uses a modified version of Ulf's parser to 18706 read the ANSI prototypes in all header files (thus the old K&R definitions 18707 aren't needed for error creation any more) and do a better job of 18708 translating function codes into names. The old 'ASN1 error code embedded 18709 in a comment' is no longer necessary and it doesn't use .err files which 18710 have now been deleted. Also the error code call doesn't have to appear all 18711 on one line (which resulted in some large lines...). 18712 18713 *Steve Henson* 18714 18715 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18716 18717 *Bodo Moeller* 18718 18719 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18720 0 (which usually indicates a closed connection), but continue reading. 18721 18722 *Bodo Moeller* 18723 18724 * Fix some race conditions. 18725 18726 *Bodo Moeller* 18727 18728 * Add support for CRL distribution points extension. Add Certificate 18729 Policies and CRL distribution points documentation. 18730 18731 *Steve Henson* 18732 18733 * Move the autogenerated header file parts to crypto/opensslconf.h. 18734 18735 *Ulf Möller* 18736 18737 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18738 8 of keying material. Merlin has also confirmed interop with this fix 18739 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18740 18741 *Merlin Hughes <merlin@baltimore.ie>* 18742 18743 * Fix lots of warnings. 18744 18745 *Richard Levitte <levitte@stacken.kth.se>* 18746 18747 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18748 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18749 18750 *Richard Levitte <levitte@stacken.kth.se>* 18751 18752 * Fix problems with sizeof(long) == 8. 18753 18754 *Andy Polyakov <appro@fy.chalmers.se>* 18755 18756 * Change functions to ANSI C. 18757 18758 *Ulf Möller* 18759 18760 * Fix typos in error codes. 18761 18762 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18763 18764 * Remove defunct assembler files from Configure. 18765 18766 *Ulf Möller* 18767 18768 * SPARC v8 assembler BIGNUM implementation. 18769 18770 *Andy Polyakov <appro@fy.chalmers.se>* 18771 18772 * Support for Certificate Policies extension: both print and set. 18773 Various additions to support the r2i method this uses. 18774 18775 *Steve Henson* 18776 18777 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18778 return a const string when you are expecting an allocated buffer. 18779 18780 *Ben Laurie* 18781 18782 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18783 types DirectoryString and DisplayText. 18784 18785 *Steve Henson* 18786 18787 * Add code to allow r2i extensions to access the configuration database, 18788 add an LHASH database driver and add several ctx helper functions. 18789 18790 *Steve Henson* 18791 18792 * Fix an evil bug in bn_expand2() which caused various BN functions to 18793 fail when they extended the size of a BIGNUM. 18794 18795 *Steve Henson* 18796 18797 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18798 support typesafe stack. 18799 18800 *Steve Henson* 18801 18802 * Fix typo in SSL_[gs]et_options(). 18803 18804 *Nils Frostberg <nils@medcom.se>* 18805 18806 * Delete various functions and files that belonged to the (now obsolete) 18807 old X509V3 handling code. 18808 18809 *Steve Henson* 18810 18811 * New Configure option "rsaref". 18812 18813 *Ulf Möller* 18814 18815 * Don't auto-generate pem.h. 18816 18817 *Bodo Moeller* 18818 18819 * Introduce type-safe ASN.1 SETs. 18820 18821 *Ben Laurie* 18822 18823 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18824 18825 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18826 18827 * Introduce type-safe STACKs. This will almost certainly break lots of code 18828 that links with OpenSSL (well at least cause lots of warnings), but fear 18829 not: the conversion is trivial, and it eliminates loads of evil casts. A 18830 few STACKed things have been converted already. Feel free to convert more. 18831 In the fullness of time, I'll do away with the STACK type altogether. 18832 18833 *Ben Laurie* 18834 18835 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18836 specified in `<certfile>` by updating the entry in the index.txt file. 18837 This way one no longer has to edit the index.txt file manually for 18838 revoking a certificate. The -revoke option does the gory details now. 18839 18840 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18841 18842 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18843 `-text` option at all and this way the `-noout -text` combination was 18844 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18845 18846 *Ralf S. Engelschall* 18847 18848 * Make sure a corresponding plain text error message exists for the 18849 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18850 verify callback function determined that a certificate was revoked. 18851 18852 *Ralf S. Engelschall* 18853 18854 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18855 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18856 all available ciphers including rc5, which was forgotten until now. 18857 In order to let the testing shell script know which algorithms 18858 are available, a new (up to now undocumented) command 18859 `openssl list-cipher-commands` is used. 18860 18861 *Bodo Moeller* 18862 18863 * Bugfix: s_client occasionally would sleep in select() when 18864 it should have checked SSL_pending() first. 18865 18866 *Bodo Moeller* 18867 18868 * New functions DSA_do_sign and DSA_do_verify to provide access to 18869 the raw DSA values prior to ASN.1 encoding. 18870 18871 *Ulf Möller* 18872 18873 * Tweaks to Configure 18874 18875 *Niels Poppe <niels@netbox.org>* 18876 18877 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18878 yet... 18879 18880 *Steve Henson* 18881 18882 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18883 18884 *Ulf Möller* 18885 18886 * New config option to avoid instructions that are illegal on the 80386. 18887 The default code is faster, but requires at least a 486. 18888 18889 *Ulf Möller* 18890 18891 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18892 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18893 same as SSL2_VERSION anyway. 18894 18895 *Bodo Moeller* 18896 18897 * New "-showcerts" option for s_client. 18898 18899 *Bodo Moeller* 18900 18901 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18902 application. Various cleanups and fixes. 18903 18904 *Steve Henson* 18905 18906 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18907 modify error routines to work internally. Add error codes and PBE init 18908 to library startup routines. 18909 18910 *Steve Henson* 18911 18912 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18913 packing functions to asn1 and evp. Changed function names and error 18914 codes along the way. 18915 18916 *Steve Henson* 18917 18918 * PKCS12 integration: and so it begins... First of several patches to 18919 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18920 objects to objects.h 18921 18922 *Steve Henson* 18923 18924 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18925 and display support for Thawte strong extranet extension. 18926 18927 *Steve Henson* 18928 18929 * Add LinuxPPC support. 18930 18931 *Jeff Dubrule <igor@pobox.org>* 18932 18933 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18934 bn_div_words in alpha.s. 18935 18936 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18937 18938 * Make sure the RSA OAEP test is skipped under -DRSAref because 18939 OAEP isn't supported when OpenSSL is built with RSAref. 18940 18941 *Ulf Moeller <ulf@fitug.de>* 18942 18943 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18944 so they no longer are missing under -DNOPROTO. 18945 18946 *Soren S. Jorvang <soren@t.dk>* 18947 18948### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18949 18950 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18951 doesn't work when the session is reused. Coming soon! 18952 18953 *Ben Laurie* 18954 18955 * Fix a security hole, that allows sessions to be reused in the wrong 18956 context thus bypassing client cert protection! All software that uses 18957 client certs and session caches in multiple contexts NEEDS PATCHING to 18958 allow session reuse! A fuller solution is in the works. 18959 18960 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18961 18962 * Some more source tree cleanups (removed obsolete files 18963 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18964 permission on "config" script to be executable) and a fix for the INSTALL 18965 document. 18966 18967 *Ulf Moeller <ulf@fitug.de>* 18968 18969 * Remove some legacy and erroneous uses of malloc, free instead of 18970 Malloc, Free. 18971 18972 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18973 18974 * Make rsa_oaep_test return non-zero on error. 18975 18976 *Ulf Moeller <ulf@fitug.de>* 18977 18978 * Add support for native Solaris shared libraries. Configure 18979 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18980 if someone would make that last step automatic. 18981 18982 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18983 18984 * ctx_size was not built with the right compiler during "make links". Fixed. 18985 18986 *Ben Laurie* 18987 18988 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18989 except NULL ciphers". This means the default cipher list will no longer 18990 enable NULL ciphers. They need to be specifically enabled e.g. with 18991 the string "DEFAULT:eNULL". 18992 18993 *Steve Henson* 18994 18995 * Fix to RSA private encryption routines: if p < q then it would 18996 occasionally produce an invalid result. This will only happen with 18997 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18998 18999 *Steve Henson* 19000 19001 * Be less restrictive and allow also `perl util/perlpath.pl 19002 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 19003 because this way one can also use an interpreter named `perl5` (which is 19004 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 19005 installed as `perl`). 19006 19007 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19008 19009 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 19010 19011 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19012 19013 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 19014 advapi32.lib to Win32 build and change the pem test comparison 19015 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 19016 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 19017 and crypto/des/ede_cbcm_enc.c. 19018 19019 *Steve Henson* 19020 19021 * DES quad checksum was broken on big-endian architectures. Fixed. 19022 19023 *Ben Laurie* 19024 19025 * Comment out two functions in bio.h that aren't implemented. Fix up the 19026 Win32 test batch file so it (might) work again. The Win32 test batch file 19027 is horrible: I feel ill.... 19028 19029 *Steve Henson* 19030 19031 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 19032 in e_os.h. Audit of header files to check ANSI and non ANSI 19033 sections: 10 functions were absent from non ANSI section and not exported 19034 from Windows DLLs. Fixed up libeay.num for new functions. 19035 19036 *Steve Henson* 19037 19038 * Make `openssl version` output lines consistent. 19039 19040 *Ralf S. Engelschall* 19041 19042 * Fix Win32 symbol export lists for BIO functions: Added 19043 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 19044 to ms/libeay{16,32}.def. 19045 19046 *Ralf S. Engelschall* 19047 19048 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 19049 fine under Unix and passes some trivial tests I've now added. But the 19050 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 19051 added to make sure no one expects that this stuff really works in the 19052 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 19053 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 19054 openssl_bio.xs. 19055 19056 *Ralf S. Engelschall* 19057 19058 * Fix the generation of two part addresses in perl. 19059 19060 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 19061 19062 * Add config entry for Linux on MIPS. 19063 19064 *John Tobey <jtobey@channel1.com>* 19065 19066 * Make links whenever Configure is run, unless we are on Windoze. 19067 19068 *Ben Laurie* 19069 19070 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 19071 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 19072 in CRLs. 19073 19074 *Steve Henson* 19075 19076 * Add a useful kludge to allow package maintainers to specify compiler and 19077 other platforms details on the command line without having to patch the 19078 Configure script every time: One now can use 19079 `perl Configure <id>:<details>`, 19080 i.e. platform ids are allowed to have details appended 19081 to them (separated by colons). This is treated as there would be a static 19082 pre-configured entry in Configure's %table under key `<id>` with value 19083 `<details>` and `perl Configure <id>` is called. So, when you want to 19084 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 19085 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 19086 now, which overrides the FreeBSD-elf entry on-the-fly. 19087 19088 *Ralf S. Engelschall* 19089 19090 * Disable new TLS1 ciphersuites by default: they aren't official yet. 19091 19092 *Ben Laurie* 19093 19094 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 19095 on the `perl Configure ...` command line. This way one can compile 19096 OpenSSL libraries with Position Independent Code (PIC) which is needed 19097 for linking it into DSOs. 19098 19099 *Ralf S. Engelschall* 19100 19101 * Remarkably, export ciphers were totally broken and no-one had noticed! 19102 Fixed. 19103 19104 *Ben Laurie* 19105 19106 * Cleaned up the LICENSE document: The official contact for any license 19107 questions now is the OpenSSL core team under openssl-core@openssl.org. 19108 And add a paragraph about the dual-license situation to make sure people 19109 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 19110 to the OpenSSL toolkit. 19111 19112 *Ralf S. Engelschall* 19113 19114 * General source tree makefile cleanups: Made `making xxx in yyy...` 19115 display consistent in the source tree and replaced `/bin/rm` by `rm`. 19116 Additionally cleaned up the `make links` target: Remove unnecessary 19117 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 19118 to speed processing and no longer clutter the display with confusing 19119 stuff. Instead only the actually done links are displayed. 19120 19121 *Ralf S. Engelschall* 19122 19123 * Permit null encryption ciphersuites, used for authentication only. It used 19124 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 19125 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 19126 encryption. 19127 19128 *Ben Laurie* 19129 19130 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 19131 signed attributes when verifying signatures (this would break them), 19132 the detached data encoding was wrong and public keys obtained using 19133 X509_get_pubkey() weren't freed. 19134 19135 *Steve Henson* 19136 19137 * Add text documentation for the BUFFER functions. Also added a work around 19138 to a Win95 console bug. This was triggered by the password read stuff: the 19139 last character typed gets carried over to the next fread(). If you were 19140 generating a new cert request using 'req' for example then the last 19141 character of the passphrase would be CR which would then enter the first 19142 field as blank. 19143 19144 *Steve Henson* 19145 19146 * Added the new 'Includes OpenSSL Cryptography Software' button as 19147 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 19148 button and can be used by applications based on OpenSSL to show the 19149 relationship to the OpenSSL project. 19150 19151 *Ralf S. Engelschall* 19152 19153 * Remove confusing variables in function signatures in files 19154 ssl/ssl_lib.c and ssl/ssl.h. 19155 19156 *Lennart Bong <lob@kulthea.stacken.kth.se>* 19157 19158 * Don't install bss_file.c under PREFIX/include/ 19159 19160 *Lennart Bong <lob@kulthea.stacken.kth.se>* 19161 19162 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 19163 functions that return function pointers and has support for NT specific 19164 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 19165 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 19166 unsigned to signed types: this was killing the Win32 compile. 19167 19168 *Steve Henson* 19169 19170 * Add new certificate file to stack functions, 19171 SSL_add_dir_cert_subjects_to_stack() and 19172 SSL_add_file_cert_subjects_to_stack(). These largely supplant 19173 SSL_load_client_CA_file(), and can be used to add multiple certs easily 19174 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 19175 This means that Apache-SSL and similar packages don't have to mess around 19176 to add as many CAs as they want to the preferred list. 19177 19178 *Ben Laurie* 19179 19180 * Experiment with doxygen documentation. Currently only partially applied to 19181 ssl/ssl_lib.c. 19182 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 19183 openssl.doxy as the configuration file. 19184 19185 *Ben Laurie* 19186 19187 * Get rid of remaining C++-style comments which strict C compilers hate. 19188 19189 *Ralf S. Engelschall, pointed out by Carlos Amengual* 19190 19191 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 19192 compiled in by default: it has problems with large keys. 19193 19194 *Steve Henson* 19195 19196 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 19197 DH private keys and/or callback functions which directly correspond to 19198 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 19199 is needed for applications which have to configure certificates on a 19200 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 19201 (e.g. s_server). 19202 For the RSA certificate situation is makes no difference, but 19203 for the DSA certificate situation this fixes the "no shared cipher" 19204 problem where the OpenSSL cipher selection procedure failed because the 19205 temporary keys were not overtaken from the context and the API provided 19206 no way to reconfigure them. 19207 The new functions now let applications reconfigure the stuff and they 19208 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 19209 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 19210 non-public-API function ssl_cert_instantiate() is used as a helper 19211 function and also to reduce code redundancy inside ssl_rsa.c. 19212 19213 *Ralf S. Engelschall* 19214 19215 * Move s_server -dcert and -dkey options out of the undocumented feature 19216 area because they are useful for the DSA situation and should be 19217 recognized by the users. 19218 19219 *Ralf S. Engelschall* 19220 19221 * Fix the cipher decision scheme for export ciphers: the export bits are 19222 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 19223 SSL_EXP_MASK. So, the original variable has to be used instead of the 19224 already masked variable. 19225 19226 *Richard Levitte <levitte@stacken.kth.se>* 19227 19228 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 19229 19230 *Richard Levitte <levitte@stacken.kth.se>* 19231 19232 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 19233 from `int` to `unsigned int` because it is a length and initialized by 19234 EVP_DigestFinal() which expects an `unsigned int *`. 19235 19236 *Richard Levitte <levitte@stacken.kth.se>* 19237 19238 * Don't hard-code path to Perl interpreter on shebang line of Configure 19239 script. Instead use the usual Shell->Perl transition trick. 19240 19241 *Ralf S. Engelschall* 19242 19243 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 19244 (in addition to RSA certificates) to match the behaviour of `openssl dsa 19245 -noout -modulus` as it's already the case for `openssl rsa -noout 19246 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 19247 currently the public key is printed (a decision which was already done by 19248 `openssl dsa -modulus` in the past) which serves a similar purpose. 19249 Additionally the NO_RSA no longer completely removes the whole -modulus 19250 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 19251 now, too. 19252 19253 *Ralf S. Engelschall* 19254 19255 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 19256 BIO. See the source (crypto/evp/bio_ok.c) for more info. 19257 19258 *Arne Ansper <arne@ats.cyber.ee>* 19259 19260 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 19261 to be added. Now both 'req' and 'ca' can use new objects defined in the 19262 config file. 19263 19264 *Steve Henson* 19265 19266 * Add cool BIO that does syslog (or event log on NT). 19267 19268 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 19269 19270 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 19271 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 19272 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 19273 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 19274 19275 *Ben Laurie* 19276 19277 * Add preliminary config info for new extension code. 19278 19279 *Steve Henson* 19280 19281 * Make RSA_NO_PADDING really use no padding. 19282 19283 *Ulf Moeller <ulf@fitug.de>* 19284 19285 * Generate errors when private/public key check is done. 19286 19287 *Ben Laurie* 19288 19289 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 19290 for some CRL extensions and new objects added. 19291 19292 *Steve Henson* 19293 19294 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 19295 key usage extension and fuller support for authority key id. 19296 19297 *Steve Henson* 19298 19299 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 19300 padding method for RSA, which is recommended for new applications in PKCS 19301 #1 v2.0 (RFC 2437, October 1998). 19302 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 19303 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 19304 against Bleichbacher's attack on RSA. 19305 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 19306 Ben Laurie* 19307 19308 * Updates to the new SSL compression code 19309 19310 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19311 19312 * Fix so that the version number in the master secret, when passed 19313 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 19314 (because the server will not accept higher), that the version number 19315 is 0x03,0x01, not 0x03,0x00 19316 19317 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19318 19319 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 19320 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 19321 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 19322 19323 *Steve Henson* 19324 19325 * Support for RAW extensions where an arbitrary extension can be 19326 created by including its DER encoding. See `apps/openssl.cnf` for 19327 an example. 19328 19329 *Steve Henson* 19330 19331 * Make sure latest Perl versions don't interpret some generated C array 19332 code as Perl array code in the crypto/err/err_genc.pl script. 19333 19334 *Lars Weber <3weber@informatik.uni-hamburg.de>* 19335 19336 * Modify ms/do_ms.bat to not generate assembly language makefiles since 19337 not many people have the assembler. Various Win32 compilation fixes and 19338 update to the INSTALL.W32 file with (hopefully) more accurate Win32 19339 build instructions. 19340 19341 *Steve Henson* 19342 19343 * Modify configure script 'Configure' to automatically create crypto/date.h 19344 file under Win32 and also build pem.h from pem.org. New script 19345 util/mkfiles.pl to create the MINFO file on environments that can't do a 19346 'make files': perl util/mkfiles.pl >MINFO should work. 19347 19348 *Steve Henson* 19349 19350 * Major rework of DES function declarations, in the pursuit of correctness 19351 and purity. As a result, many evil casts evaporated, and some weirdness, 19352 too. You may find this causes warnings in your code. Zapping your evil 19353 casts will probably fix them. Mostly. 19354 19355 *Ben Laurie* 19356 19357 * Fix for a typo in asn1.h. Bug fix to object creation script 19358 obj_dat.pl. It considered a zero in an object definition to mean 19359 "end of object": none of the objects in objects.h have any zeros 19360 so it wasn't spotted. 19361 19362 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 19363 19364 * Add support for Triple DES Cipher Block Chaining with Output Feedback 19365 Masking (CBCM). In the absence of test vectors, the best I have been able 19366 to do is check that the decrypt undoes the encrypt, so far. Send me test 19367 vectors if you have them. 19368 19369 *Ben Laurie* 19370 19371 * Correct calculation of key length for export ciphers (too much space was 19372 allocated for null ciphers). This has not been tested! 19373 19374 *Ben Laurie* 19375 19376 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19377 message is now correct (it understands "crypto" and "ssl" on its 19378 command line). There is also now an "update" option. This will update 19379 the util/ssleay.num and util/libeay.num files with any new functions. 19380 If you do a: 19381 perl util/mkdef.pl crypto ssl update 19382 it will update them. 19383 19384 *Steve Henson* 19385 19386 * Overhauled the Perl interface: 19387 - ported BN stuff to OpenSSL's different BN library 19388 - made the perl/ source tree CVS-aware 19389 - renamed the package from SSLeay to OpenSSL (the files still contain 19390 their history because I've copied them in the repository) 19391 - removed obsolete files (the test scripts will be replaced 19392 by better Test::Harness variants in the future) 19393 19394 *Ralf S. Engelschall* 19395 19396 * First cut for a very conservative source tree cleanup: 19397 1. merge various obsolete readme texts into doc/ssleay.txt 19398 where we collect the old documents and readme texts. 19399 2. remove the first part of files where I'm already sure that we no 19400 longer need them because of three reasons: either they are just temporary 19401 files which were left by Eric or they are preserved original files where 19402 I've verified that the diff is also available in the CVS via "cvs diff 19403 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19404 the crypto/md/ stuff). 19405 19406 *Ralf S. Engelschall* 19407 19408 * More extension code. Incomplete support for subject and issuer alt 19409 name, issuer and authority key id. Change the i2v function parameters 19410 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19411 what that's for :-) Fix to ASN1 macro which messed up 19412 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19413 19414 *Steve Henson* 19415 19416 * Preliminary support for ENUMERATED type. This is largely copied from the 19417 INTEGER code. 19418 19419 *Steve Henson* 19420 19421 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19422 19423 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19424 19425 * Make sure `make rehash` target really finds the `openssl` program. 19426 19427 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19428 19429 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19430 like to hear about it if this slows down other processors. 19431 19432 *Ben Laurie* 19433 19434 * Add CygWin32 platform information to Configure script. 19435 19436 *Alan Batie <batie@aahz.jf.intel.com>* 19437 19438 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19439 19440 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19441 19442 * New program nseq to manipulate netscape certificate sequences 19443 19444 *Steve Henson* 19445 19446 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19447 few typos. 19448 19449 *Steve Henson* 19450 19451 * Fixes to BN code. Previously the default was to define BN_RECURSION 19452 but the BN code had some problems that would cause failures when 19453 doing certificate verification and some other functions. 19454 19455 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19456 19457 * Add ASN1 and PEM code to support netscape certificate sequences. 19458 19459 *Steve Henson* 19460 19461 * Add ASN1 and PEM code to support netscape certificate sequences. 19462 19463 *Steve Henson* 19464 19465 * Add several PKIX and private extended key usage OIDs. 19466 19467 *Steve Henson* 19468 19469 * Modify the 'ca' program to handle the new extension code. Modify 19470 openssl.cnf for new extension format, add comments. 19471 19472 *Steve Henson* 19473 19474 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19475 and add a sample to openssl.cnf so req -x509 now adds appropriate 19476 CA extensions. 19477 19478 *Steve Henson* 19479 19480 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19481 error code, add initial support to X509_print() and x509 application. 19482 19483 *Steve Henson* 19484 19485 * Takes a deep breath and start adding X509 V3 extension support code. Add 19486 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19487 stuff is currently isolated and isn't even compiled yet. 19488 19489 *Steve Henson* 19490 19491 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19492 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19493 Removed the versions check from X509 routines when loading extensions: 19494 this allows certain broken certificates that don't set the version 19495 properly to be processed. 19496 19497 *Steve Henson* 19498 19499 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19500 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19501 can still be regenerated with "make depend". 19502 19503 *Ben Laurie* 19504 19505 * Spelling mistake in C version of CAST-128. 19506 19507 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19508 19509 * Changes to the error generation code. The perl script err-code.pl 19510 now reads in the old error codes and retains the old numbers, only 19511 adding new ones if necessary. It also only changes the .err files if new 19512 codes are added. The makefiles have been modified to only insert errors 19513 when needed (to avoid needlessly modifying header files). This is done 19514 by only inserting errors if the .err file is newer than the auto generated 19515 C file. To rebuild all the error codes from scratch (the old behaviour) 19516 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19517 or delete all the .err files. 19518 19519 *Steve Henson* 19520 19521 * CAST-128 was incorrectly implemented for short keys. The C version has 19522 been fixed, but is untested. The assembler versions are also fixed, but 19523 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19524 to regenerate it if needed. 19525 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19526 Hagino <itojun@kame.net>* 19527 19528 * File was opened incorrectly in randfile.c. 19529 19530 *Ulf Möller <ulf@fitug.de>* 19531 19532 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19533 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19534 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19535 al: it's just almost always a UTCTime. Note this patch adds new error 19536 codes so do a "make errors" if there are problems. 19537 19538 *Steve Henson* 19539 19540 * Correct Linux 1 recognition in config. 19541 19542 *Ulf Möller <ulf@fitug.de>* 19543 19544 * Remove pointless MD5 hash when using DSA keys in ca. 19545 19546 *Anonymous <nobody@replay.com>* 19547 19548 * Generate an error if given an empty string as a cert directory. Also 19549 generate an error if handed NULL (previously returned 0 to indicate an 19550 error, but didn't set one). 19551 19552 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19553 19554 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19555 19556 *Ben Laurie* 19557 19558 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19559 parameters. This was causing a warning which killed off the Win32 compile. 19560 19561 *Steve Henson* 19562 19563 * Remove C++ style comments from crypto/bn/bn_local.h. 19564 19565 *Neil Costigan <neil.costigan@celocom.com>* 19566 19567 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19568 based on a text string, looking up short and long names and finally 19569 "dot" format. The "dot" format stuff didn't work. Added new function 19570 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19571 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19572 OID is not part of the table. 19573 19574 *Steve Henson* 19575 19576 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19577 X509_LOOKUP_by_alias(). 19578 19579 *Ben Laurie* 19580 19581 * Sort openssl functions by name. 19582 19583 *Ben Laurie* 19584 19585 * Get the `gendsa` command working and add it to the `list` command. Remove 19586 encryption from sample DSA keys (in case anyone is interested the password 19587 was "1234"). 19588 19589 *Steve Henson* 19590 19591 * Make *all* `*_free` functions accept a NULL pointer. 19592 19593 *Frans Heymans <fheymans@isaserver.be>* 19594 19595 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19596 NULL pointers. 19597 19598 *Anonymous <nobody@replay.com>* 19599 19600 * s_server should send the CAfile as acceptable CAs, not its own cert. 19601 19602 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19603 19604 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19605 19606 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19607 19608 * Temp key "for export" tests were wrong in s3_srvr.c. 19609 19610 *Anonymous <nobody@replay.com>* 19611 19612 * Add prototype for temp key callback functions 19613 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19614 19615 *Ben Laurie* 19616 19617 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19618 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19619 19620 *Steve Henson* 19621 19622 * X509_name_add_entry() freed the wrong thing after an error. 19623 19624 *Arne Ansper <arne@ats.cyber.ee>* 19625 19626 * rsa_eay.c would attempt to free a NULL context. 19627 19628 *Arne Ansper <arne@ats.cyber.ee>* 19629 19630 * BIO_s_socket() had a broken should_retry() on Windoze. 19631 19632 *Arne Ansper <arne@ats.cyber.ee>* 19633 19634 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19635 19636 *Arne Ansper <arne@ats.cyber.ee>* 19637 19638 * Make sure the already existing X509_STORE->depth variable is initialized 19639 in X509_STORE_new(), but document the fact that this variable is still 19640 unused in the certificate verification process. 19641 19642 *Ralf S. Engelschall* 19643 19644 * Fix the various library and `apps/` files to free up pkeys obtained from 19645 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19646 19647 *Steve Henson* 19648 19649 * Fix reference counting in X509_PUBKEY_get(). This makes 19650 demos/maurice/example2.c work, amongst others, probably. 19651 19652 *Steve Henson and Ben Laurie* 19653 19654 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19655 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19656 are no longer created. This way we have a single and consistent command 19657 line interface `openssl <command>`, similar to `cvs <command>`. 19658 19659 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19660 19661 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19662 BIT STRING wrapper always have zero unused bits. 19663 19664 *Steve Henson* 19665 19666 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19667 19668 *Steve Henson* 19669 19670 * Make the top-level INSTALL documentation easier to understand. 19671 19672 *Paul Sutton* 19673 19674 * Makefiles updated to exit if an error occurs in a sub-directory 19675 make (including if user presses ^C) [Paul Sutton] 19676 19677 * Make Montgomery context stuff explicit in RSA data structure. 19678 19679 *Ben Laurie* 19680 19681 * Fix build order of pem and err to allow for generated pem.h. 19682 19683 *Ben Laurie* 19684 19685 * Fix renumbering bug in X509_NAME_delete_entry(). 19686 19687 *Ben Laurie* 19688 19689 * Enhanced the err-ins.pl script so it makes the error library number 19690 global and can add a library name. This is needed for external ASN1 and 19691 other error libraries. 19692 19693 *Steve Henson* 19694 19695 * Fixed sk_insert which never worked properly. 19696 19697 *Steve Henson* 19698 19699 * Fix ASN1 macros so they can handle indefinite length constructed 19700 EXPLICIT tags. Some non standard certificates use these: they can now 19701 be read in. 19702 19703 *Steve Henson* 19704 19705 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19706 into a single doc/ssleay.txt bundle. This way the information is still 19707 preserved but no longer messes up this directory. Now it's new room for 19708 the new set of documentation files. 19709 19710 *Ralf S. Engelschall* 19711 19712 * SETs were incorrectly DER encoded. This was a major pain, because they 19713 shared code with SEQUENCEs, which aren't coded the same. This means that 19714 almost everything to do with SETs or SEQUENCEs has either changed name or 19715 number of arguments. 19716 19717 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19718 19719 * Fix test data to work with the above. 19720 19721 *Ben Laurie* 19722 19723 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19724 was already fixed by Eric for 0.9.1 it seems. 19725 19726 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19727 19728 * Autodetect FreeBSD3. 19729 19730 *Ben Laurie* 19731 19732 * Fix various bugs in Configure. This affects the following platforms: 19733 nextstep 19734 ncr-scde 19735 unixware-2.0 19736 unixware-2.0-pentium 19737 sco5-cc. 19738 19739 *Ben Laurie* 19740 19741 * Eliminate generated files from CVS. Reorder tests to regenerate files 19742 before they are needed. 19743 19744 *Ben Laurie* 19745 19746 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19747 19748 *Ben Laurie* 19749 19750### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19751 19752 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19753 changed SSLeay to OpenSSL in version strings. 19754 19755 *Ralf S. Engelschall* 19756 19757 * Some fixups to the top-level documents. 19758 19759 *Paul Sutton* 19760 19761 * Fixed the nasty bug where rsaref.h was not found under compile-time 19762 because the symlink to include/ was missing. 19763 19764 *Ralf S. Engelschall* 19765 19766 * Incorporated the popular no-RSA/DSA-only patches 19767 which allow to compile an RSA-free SSLeay. 19768 19769 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19770 19771 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19772 when "ssleay" is still not found. 19773 19774 *Ralf S. Engelschall* 19775 19776 * Added more platforms to Configure: Cray T3E, HPUX 11, 19777 19778 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19779 19780 * Updated the README file. 19781 19782 *Ralf S. Engelschall* 19783 19784 * Added various .cvsignore files in the CVS repository subdirs 19785 to make a "cvs update" really silent. 19786 19787 *Ralf S. Engelschall* 19788 19789 * Recompiled the error-definition header files and added 19790 missing symbols to the Win32 linker tables. 19791 19792 *Ralf S. Engelschall* 19793 19794 * Cleaned up the top-level documents; 19795 o new files: CHANGES and LICENSE 19796 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19797 o merged COPYRIGHT into LICENSE 19798 o removed obsolete TODO file 19799 o renamed MICROSOFT to INSTALL.W32 19800 19801 *Ralf S. Engelschall* 19802 19803 * Removed dummy files from the 0.9.1b source tree: 19804 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19805 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19806 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19807 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19808 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19809 19810 *Ralf S. Engelschall* 19811 19812 * Added various platform portability fixes. 19813 19814 *Mark J. Cox* 19815 19816 * The Genesis of the OpenSSL rpject: 19817 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19818 Young and Tim J. Hudson created while they were working for C2Net until 19819 summer 1998. 19820 19821 *The OpenSSL Project* 19822 19823### Changes between 0.9.0b and 0.9.1b [not released] 19824 19825 * Updated a few CA certificates under certs/ 19826 19827 *Eric A. Young* 19828 19829 * Changed some BIGNUM api stuff. 19830 19831 *Eric A. Young* 19832 19833 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19834 DGUX x86, Linux Alpha, etc. 19835 19836 *Eric A. Young* 19837 19838 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19839 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19840 available). 19841 19842 *Eric A. Young* 19843 19844 * Add -strparse option to asn1pars program which parses nested 19845 binary structures 19846 19847 *Dr Stephen Henson <shenson@bigfoot.com>* 19848 19849 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19850 19851 *Eric A. Young* 19852 19853 * DSA fix for "ca" program. 19854 19855 *Eric A. Young* 19856 19857 * Added "-genkey" option to "dsaparam" program. 19858 19859 *Eric A. Young* 19860 19861 * Added RIPE MD160 (rmd160) message digest. 19862 19863 *Eric A. Young* 19864 19865 * Added -a (all) option to "ssleay version" command. 19866 19867 *Eric A. Young* 19868 19869 * Added PLATFORM define which is the id given to Configure. 19870 19871 *Eric A. Young* 19872 19873 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19874 19875 *Eric A. Young* 19876 19877 * Extended the ASN.1 parser routines. 19878 19879 *Eric A. Young* 19880 19881 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19882 19883 *Eric A. Young* 19884 19885 * Added a BN_CTX to the BN library. 19886 19887 *Eric A. Young* 19888 19889 * Fixed the weak key values in DES library 19890 19891 *Eric A. Young* 19892 19893 * Changed API in EVP library for cipher aliases. 19894 19895 *Eric A. Young* 19896 19897 * Added support for RC2/64bit cipher. 19898 19899 *Eric A. Young* 19900 19901 * Converted the lhash library to the crypto/mem.c functions. 19902 19903 *Eric A. Young* 19904 19905 * Added more recognized ASN.1 object ids. 19906 19907 *Eric A. Young* 19908 19909 * Added more RSA padding checks for SSL/TLS. 19910 19911 *Eric A. Young* 19912 19913 * Added BIO proxy/filter functionality. 19914 19915 *Eric A. Young* 19916 19917 * Added extra_certs to SSL_CTX which can be used 19918 send extra CA certificates to the client in the CA cert chain sending 19919 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19920 19921 *Eric A. Young* 19922 19923 * Now Fortezza is denied in the authentication phase because 19924 this is key exchange mechanism is not supported by SSLeay at all. 19925 19926 *Eric A. Young* 19927 19928 * Additional PKCS1 checks. 19929 19930 *Eric A. Young* 19931 19932 * Support the string "TLSv1" for all TLS v1 ciphers. 19933 19934 *Eric A. Young* 19935 19936 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19937 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19938 19939 *Eric A. Young* 19940 19941 * Fixed a few memory leaks. 19942 19943 *Eric A. Young* 19944 19945 * Fixed various code and comment typos. 19946 19947 *Eric A. Young* 19948 19949 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19950 bytes sent in the client random. 19951 19952 *Edward Bishop <ebishop@spyglass.com>* 19953 19954<!-- Links --> 19955 19956[CVE-2024-13176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-13176 19957[CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143 19958[CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119 19959[CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535 19960[CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741 19961[CVE-2024-4603]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4603 19962[CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511 19963[CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727 19964[CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237 19965[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 19966[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678 19967[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 19968[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807 19969[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 19970[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 19971[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 19972[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 19973[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 19974[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 19975[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 19976[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 19977[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 19978[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19979[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19980[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19981[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19982[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19983[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19984[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19985[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19986[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19987[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19988[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 19989[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19990[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19991[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19992[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19993[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19994[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19995[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19996[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19997[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19998[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19999[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 20000[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 20001[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 20002[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 20003[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 20004[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 20005[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 20006[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 20007[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 20008[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 20009[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 20010[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 20011[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 20012[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 20013[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 20014[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 20015[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 20016[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 20017[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 20018[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 20019[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 20020[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 20021[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 20022[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 20023[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 20024[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 20025[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 20026[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 20027[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 20028[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 20029[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 20030[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 20031[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 20032[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 20033[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 20034[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 20035[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 20036[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 20037[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 20038[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 20039[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 20040[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 20041[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 20042[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 20043[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 20044[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 20045[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 20046[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 20047[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 20048[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 20049[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 20050[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 20051[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 20052[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 20053[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 20054[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 20055[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 20056[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 20057[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 20058[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 20059[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 20060[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 20061[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 20062[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 20063[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 20064[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 20065[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 20066[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 20067[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 20068[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 20069[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 20070[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 20071[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 20072[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 20073[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 20074[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 20075[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 20076[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 20077[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 20078[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 20079[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 20080[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 20081[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 20082[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 20083[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 20084[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 20085[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 20086[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 20087[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 20088[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 20089[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 20090[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 20091[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 20092[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 20093[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 20094[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 20095[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 20096[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 20097[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 20098[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 20099[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 20100[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 20101[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 20102[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 20103[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 20104[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 20105[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 20106[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 20107[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 20108[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 20109[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 20110[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 20111[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 20112[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 20113[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 20114[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 20115[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 20116[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 20117[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 20118[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 20119[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 20120[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 20121[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 20122[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 20123[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 20124[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 20125[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 20126[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 20127[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 20128[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 20129[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 20130[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 20131[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 20132[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 20133[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 20134[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 20135[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 20136[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 20137[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 20138[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 20139[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 20140[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 20141[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 20142[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 20143[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 20144[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 20145[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 20146[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 20147[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 20148[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 20149[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 20150[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 20151