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 3.0.14 and 3.0.15 [3 Sep 2024] 32 33 * Fixed possible denial of service in X.509 name checks. 34 35 Applications performing certificate name checks (e.g., TLS clients checking 36 server certificates) may attempt to read an invalid memory address when 37 comparing the expected name with an `otherName` subject alternative name of 38 an X.509 certificate. This may result in an exception that terminates the 39 application program. 40 41 ([CVE-2024-6119]) 42 43 *Viktor Dukhovni* 44 45 * Fixed possible buffer overread in SSL_select_next_proto(). 46 47 Calling the OpenSSL API function SSL_select_next_proto with an empty 48 supported client protocols buffer may cause a crash or memory contents 49 to be sent to the peer. 50 51 ([CVE-2024-5535]) 52 53 *Matt Caswell* 54 55### Changes between 3.0.13 and 3.0.14 [4 Jun 2024] 56 57 * Fixed potential use after free after SSL_free_buffers() is called. 58 59 The SSL_free_buffers function is used to free the internal OpenSSL 60 buffer used when processing an incoming record from the network. 61 The call is only expected to succeed if the buffer is not currently 62 in use. However, two scenarios have been identified where the buffer 63 is freed even when still in use. 64 65 The first scenario occurs where a record header has been received 66 from the network and processed by OpenSSL, but the full record body 67 has not yet arrived. In this case calling SSL_free_buffers will succeed 68 even though a record has only been partially processed and the buffer 69 is still in use. 70 71 The second scenario occurs where a full record containing application 72 data has been received and processed by OpenSSL but the application has 73 only read part of this data. Again a call to SSL_free_buffers will 74 succeed even though the buffer is still in use. 75 76 ([CVE-2024-4741]) 77 78 *Matt Caswell* 79 80 * Fixed an issue where checking excessively long DSA keys or parameters may 81 be very slow. 82 83 Applications that use the functions EVP_PKEY_param_check() or 84 EVP_PKEY_public_check() to check a DSA public key or DSA parameters may 85 experience long delays. Where the key or parameters that are being checked 86 have been obtained from an untrusted source this may lead to a Denial of 87 Service. 88 89 To resolve this issue DSA keys larger than OPENSSL_DSA_MAX_MODULUS_BITS 90 will now fail the check immediately with a DSA_R_MODULUS_TOO_LARGE error 91 reason. 92 93 ([CVE-2024-4603]) 94 95 *Tomáš Mráz* 96 97 * Improved EC/DSA nonce generation routines to avoid bias and timing 98 side channel leaks. 99 100 Thanks to Florian Sieck from Universität zu Lübeck and George Pantelakis 101 and Hubert Kario from Red Hat for reporting the issues. 102 103 *Tomáš Mráz and Paul Dale* 104 105 * Fixed an issue where some non-default TLS server configurations can cause 106 unbounded memory growth when processing TLSv1.3 sessions. An attacker may 107 exploit certain server configurations to trigger unbounded memory growth that 108 would lead to a Denial of Service 109 110 This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option 111 is being used (but not if early_data is also configured and the default 112 anti-replay protection is in use). In this case, under certain conditions, 113 the session cache can get into an incorrect state and it will fail to flush 114 properly as it fills. The session cache will continue to grow in an unbounded 115 manner. A malicious client could deliberately create the scenario for this 116 failure to force a Denial of Service. It may also happen by accident in 117 normal operation. 118 119 ([CVE-2024-2511]) 120 121 *Matt Caswell* 122 123 * New atexit configuration switch, which controls whether the OPENSSL_cleanup 124 is registered when libcrypto is unloaded. This can be used on platforms 125 where using atexit() from shared libraries causes crashes on exit. 126 127 *Randall S. Becker* 128 129### Changes between 3.0.12 and 3.0.13 [30 Jan 2024] 130 131 * A file in PKCS12 format can contain certificates and keys and may come from 132 an untrusted source. The PKCS12 specification allows certain fields to be 133 NULL, but OpenSSL did not correctly check for this case. A fix has been 134 applied to prevent a NULL pointer dereference that results in OpenSSL 135 crashing. If an application processes PKCS12 files from an untrusted source 136 using the OpenSSL APIs then that application will be vulnerable to this 137 issue prior to this fix. 138 139 OpenSSL APIs that were vulnerable to this are: PKCS12_parse(), 140 PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() 141 and PKCS12_newpass(). 142 143 We have also fixed a similar issue in SMIME_write_PKCS7(). However since this 144 function is related to writing data we do not consider it security 145 significant. 146 147 ([CVE-2024-0727]) 148 149 *Matt Caswell* 150 151 * When function EVP_PKEY_public_check() is called on RSA public keys, 152 a computation is done to confirm that the RSA modulus, n, is composite. 153 For valid RSA keys, n is a product of two or more large primes and this 154 computation completes quickly. However, if n is an overly large prime, 155 then this computation would take a long time. 156 157 An application that calls EVP_PKEY_public_check() and supplies an RSA key 158 obtained from an untrusted source could be vulnerable to a Denial of Service 159 attack. 160 161 The function EVP_PKEY_public_check() is not called from other OpenSSL 162 functions however it is called from the OpenSSL pkey command line 163 application. For that reason that application is also vulnerable if used 164 with the "-pubin" and "-check" options on untrusted data. 165 166 To resolve this issue RSA keys larger than OPENSSL_RSA_MAX_MODULUS_BITS will 167 now fail the check immediately with an RSA_R_MODULUS_TOO_LARGE error reason. 168 169 ([CVE-2023-6237]) 170 171 *Tomáš Mráz* 172 173 * Restore the encoding of SM2 PrivateKeyInfo and SubjectPublicKeyInfo to 174 have the contained AlgorithmIdentifier.algorithm set to id-ecPublicKey 175 rather than SM2. 176 177 *Richard Levitte* 178 179 * The POLY1305 MAC (message authentication code) implementation in OpenSSL 180 for PowerPC CPUs saves the contents of vector registers in different 181 order than they are restored. Thus the contents of some of these vector 182 registers is corrupted when returning to the caller. The vulnerable code is 183 used only on newer PowerPC processors supporting the PowerISA 2.07 184 instructions. 185 186 The consequences of this kind of internal application state corruption can 187 be various - from no consequences, if the calling application does not 188 depend on the contents of non-volatile XMM registers at all, to the worst 189 consequences, where the attacker could get complete control of the 190 application process. However unless the compiler uses the vector registers 191 for storing pointers, the most likely consequence, if any, would be an 192 incorrect result of some application dependent calculations or a crash 193 leading to a denial of service. 194 195 ([CVE-2023-6129]) 196 197 *Rohan McLure* 198 199 * Fix excessive time spent in DH check / generation with large Q parameter 200 value. 201 202 Applications that use the functions DH_generate_key() to generate an 203 X9.42 DH key may experience long delays. Likewise, applications that use 204 DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() 205 to check an X9.42 DH key or X9.42 DH parameters may experience long delays. 206 Where the key or parameters that are being checked have been obtained from 207 an untrusted source this may lead to a Denial of Service. 208 209 ([CVE-2023-5678]) 210 211 *Richard Levitte* 212 213### Changes between 3.0.11 and 3.0.12 [24 Oct 2023] 214 215 * Fix incorrect key and IV resizing issues when calling EVP_EncryptInit_ex2(), 216 EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() with OSSL_PARAM parameters 217 that alter the key or IV length ([CVE-2023-5363]). 218 219 *Paul Dale* 220 221### Changes between 3.0.10 and 3.0.11 [19 Sep 2023] 222 223 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 224 225 The POLY1305 MAC (message authentication code) implementation in OpenSSL 226 does not save the contents of non-volatile XMM registers on Windows 64 227 platform when calculating the MAC of data larger than 64 bytes. Before 228 returning to the caller all the XMM registers are set to zero rather than 229 restoring their previous content. The vulnerable code is used only on newer 230 x86_64 processors supporting the AVX512-IFMA instructions. 231 232 The consequences of this kind of internal application state corruption can 233 be various - from no consequences, if the calling application does not 234 depend on the contents of non-volatile XMM registers at all, to the worst 235 consequences, where the attacker could get complete control of the 236 application process. However given the contents of the registers are just 237 zeroized so the attacker cannot put arbitrary values inside, the most likely 238 consequence, if any, would be an incorrect result of some application 239 dependent calculations or a crash leading to a denial of service. 240 241 ([CVE-2023-4807]) 242 243 *Bernd Edlinger* 244 245### Changes between 3.0.9 and 3.0.10 [1 Aug 2023] 246 247 * Fix excessive time spent checking DH q parameter value. 248 249 The function DH_check() performs various checks on DH parameters. After 250 fixing CVE-2023-3446 it was discovered that a large q parameter value can 251 also trigger an overly long computation during some of these checks. 252 A correct q value, if present, cannot be larger than the modulus p 253 parameter, thus it is unnecessary to perform these checks if q is larger 254 than p. 255 256 If DH_check() is called with such q parameter value, 257 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 258 intensive checks are skipped. 259 260 ([CVE-2023-3817]) 261 262 *Tomáš Mráz* 263 264 * Fix DH_check() excessive time with over sized modulus. 265 266 The function DH_check() performs various checks on DH parameters. One of 267 those checks confirms that the modulus ("p" parameter) is not too large. 268 Trying to use a very large modulus is slow and OpenSSL will not normally use 269 a modulus which is over 10,000 bits in length. 270 271 However the DH_check() function checks numerous aspects of the key or 272 parameters that have been supplied. Some of those checks use the supplied 273 modulus value even if it has already been found to be too large. 274 275 A new limit has been added to DH_check of 32,768 bits. Supplying a 276 key/parameters with a modulus over this size will simply cause DH_check() to 277 fail. 278 279 ([CVE-2023-3446]) 280 281 *Matt Caswell* 282 283 * Do not ignore empty associated data entries with AES-SIV. 284 285 The AES-SIV algorithm allows for authentication of multiple associated 286 data entries along with the encryption. To authenticate empty data the 287 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 288 with NULL pointer as the output buffer and 0 as the input buffer length. 289 The AES-SIV implementation in OpenSSL just returns success for such call 290 instead of performing the associated data authentication operation. 291 The empty data thus will not be authenticated. ([CVE-2023-2975]) 292 293 Thanks to Juerg Wullschleger (Google) for discovering the issue. 294 295 The fix changes the authentication tag value and the ciphertext for 296 applications that use empty associated data entries with AES-SIV. 297 To decrypt data encrypted with previous versions of OpenSSL the application 298 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 299 entries. 300 301 *Tomáš Mráz* 302 303### Changes between 3.0.8 and 3.0.9 [30 May 2023] 304 305 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 306 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 307 308 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 309 numeric text form. For gigantic sub-identifiers, this would take a very 310 long time, the time complexity being O(n^2) where n is the size of that 311 sub-identifier. ([CVE-2023-2650]) 312 313 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 314 IDENTIFIER to canonical numeric text form if the size of that OBJECT 315 IDENTIFIER is 586 bytes or less, and fail otherwise. 316 317 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 318 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 319 most 128 sub-identifiers, and that the maximum value that each sub- 320 identifier may have is 2^32-1 (4294967295 decimal). 321 322 For each byte of every sub-identifier, only the 7 lower bits are part of 323 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 324 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 325 bytes. 326 327 *Richard Levitte* 328 329 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 330 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 331 trigger a crash of an application using AES-XTS decryption if the memory 332 just after the buffer being decrypted is not mapped. 333 Thanks to Anton Romanov (Amazon) for discovering the issue. 334 ([CVE-2023-1255]) 335 336 *Nevine Ebeid* 337 338 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 339 The previous fix for this timing side channel turned out to cause 340 a severe 2-3x performance regression in the typical use case 341 compared to 3.0.7. The new fix uses existing constant time 342 code paths, and restores the previous performance level while 343 fully eliminating all existing timing side channels. 344 The fix was developed by Bernd Edlinger with testing support 345 by Hubert Kario. 346 347 *Bernd Edlinger* 348 349 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 350 that it does not enable policy checking. Thanks to David Benjamin for 351 discovering this issue. 352 ([CVE-2023-0466]) 353 354 *Tomáš Mráz* 355 356 * Fixed an issue where invalid certificate policies in leaf certificates are 357 silently ignored by OpenSSL and other certificate policy checks are skipped 358 for that certificate. A malicious CA could use this to deliberately assert 359 invalid certificate policies in order to circumvent policy checking on the 360 certificate altogether. 361 ([CVE-2023-0465]) 362 363 *Matt Caswell* 364 365 * Limited the number of nodes created in a policy tree to mitigate 366 against CVE-2023-0464. The default limit is set to 1000 nodes, which 367 should be sufficient for most installations. If required, the limit 368 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 369 time define to a desired maximum number of nodes or zero to allow 370 unlimited growth. 371 ([CVE-2023-0464]) 372 373 *Paul Dale* 374 375### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 376 377 * Fixed NULL dereference during PKCS7 data verification. 378 379 A NULL pointer can be dereferenced when signatures are being 380 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 381 algorithm used for the signature is known to the OpenSSL library but 382 the implementation of the hash algorithm is not available the digest 383 initialization will fail. There is a missing check for the return 384 value from the initialization function which later leads to invalid 385 usage of the digest API most likely leading to a crash. 386 ([CVE-2023-0401]) 387 388 PKCS7 data is processed by the SMIME library calls and also by the 389 time stamp (TS) library calls. The TLS implementation in OpenSSL does 390 not call these functions however third party applications would be 391 affected if they call these functions to verify signatures on untrusted 392 data. 393 394 *Tomáš Mráz* 395 396 * Fixed X.400 address type confusion in X.509 GeneralName. 397 398 There is a type confusion vulnerability relating to X.400 address processing 399 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 400 but the public structure definition for GENERAL_NAME incorrectly specified 401 the type of the x400Address field as ASN1_TYPE. This field is subsequently 402 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 403 than an ASN1_STRING. 404 405 When CRL checking is enabled (i.e. the application sets the 406 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 407 pass arbitrary pointers to a memcmp call, enabling them to read memory 408 contents or enact a denial of service. 409 ([CVE-2023-0286]) 410 411 *Hugo Landau* 412 413 * Fixed NULL dereference validating DSA public key. 414 415 An invalid pointer dereference on read can be triggered when an 416 application tries to check a malformed DSA public key by the 417 EVP_PKEY_public_check() function. This will most likely lead 418 to an application crash. This function can be called on public 419 keys supplied from untrusted sources which could allow an attacker 420 to cause a denial of service attack. 421 422 The TLS implementation in OpenSSL does not call this function 423 but applications might call the function if there are additional 424 security requirements imposed by standards such as FIPS 140-3. 425 ([CVE-2023-0217]) 426 427 *Shane Lontis, Tomáš Mráz* 428 429 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 430 431 An invalid pointer dereference on read can be triggered when an 432 application tries to load malformed PKCS7 data with the 433 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 434 435 The result of the dereference is an application crash which could 436 lead to a denial of service attack. The TLS implementation in OpenSSL 437 does not call this function however third party applications might 438 call these functions on untrusted data. 439 ([CVE-2023-0216]) 440 441 *Tomáš Mráz* 442 443 * Fixed Use-after-free following BIO_new_NDEF. 444 445 The public API function BIO_new_NDEF is a helper function used for 446 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 447 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 448 be called directly by end user applications. 449 450 The function receives a BIO from the caller, prepends a new BIO_f_asn1 451 filter BIO onto the front of it to form a BIO chain, and then returns 452 the new head of the BIO chain to the caller. Under certain conditions, 453 for example if a CMS recipient public key is invalid, the new filter BIO 454 is freed and the function returns a NULL result indicating a failure. 455 However, in this case, the BIO chain is not properly cleaned up and the 456 BIO passed by the caller still retains internal pointers to the previously 457 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 458 then a use-after-free will occur. This will most likely result in a crash. 459 ([CVE-2023-0215]) 460 461 *Viktor Dukhovni, Matt Caswell* 462 463 * Fixed Double free after calling PEM_read_bio_ex. 464 465 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 466 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 467 data. If the function succeeds then the "name_out", "header" and "data" 468 arguments are populated with pointers to buffers containing the relevant 469 decoded data. The caller is responsible for freeing those buffers. It is 470 possible to construct a PEM file that results in 0 bytes of payload data. 471 In this case PEM_read_bio_ex() will return a failure code but will populate 472 the header argument with a pointer to a buffer that has already been freed. 473 If the caller also frees this buffer then a double free will occur. This 474 will most likely lead to a crash. 475 476 The functions PEM_read_bio() and PEM_read() are simple wrappers around 477 PEM_read_bio_ex() and therefore these functions are also directly affected. 478 479 These functions are also called indirectly by a number of other OpenSSL 480 functions including PEM_X509_INFO_read_bio_ex() and 481 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 482 internal uses of these functions are not vulnerable because the caller does 483 not free the header argument if PEM_read_bio_ex() returns a failure code. 484 ([CVE-2022-4450]) 485 486 *Kurt Roeckx, Matt Caswell* 487 488 * Fixed Timing Oracle in RSA Decryption. 489 490 A timing based side channel exists in the OpenSSL RSA Decryption 491 implementation which could be sufficient to recover a plaintext across 492 a network in a Bleichenbacher style attack. To achieve a successful 493 decryption an attacker would have to be able to send a very large number 494 of trial messages for decryption. The vulnerability affects all RSA padding 495 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 496 ([CVE-2022-4304]) 497 498 *Dmitry Belyavsky, Hubert Kario* 499 500 * Fixed X.509 Name Constraints Read Buffer Overflow. 501 502 A read buffer overrun can be triggered in X.509 certificate verification, 503 specifically in name constraint checking. The read buffer overrun might 504 result in a crash which could lead to a denial of service attack. 505 In a TLS client, this can be triggered by connecting to a malicious 506 server. In a TLS server, this can be triggered if the server requests 507 client authentication and a malicious client connects. 508 ([CVE-2022-4203]) 509 510 *Viktor Dukhovni* 511 512 * Fixed X.509 Policy Constraints Double Locking security issue. 513 514 If an X.509 certificate contains a malformed policy constraint and 515 policy processing is enabled, then a write lock will be taken twice 516 recursively. On some operating systems (most widely: Windows) this 517 results in a denial of service when the affected process hangs. Policy 518 processing being enabled on a publicly facing server is not considered 519 to be a common setup. 520 ([CVE-2022-3996]) 521 522 *Paul Dale* 523 524 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 525 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 526 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 527 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 528 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 529 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 530 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 531 for legacy EC and SM2 keys is also changed similarly to honor the 532 equivalent conversion format flag as specified in the underlying 533 `EC_KEY` object being exported to a provider, when this function is 534 called through `EVP_PKEY_export()`. 535 536 *Nicola Tuveri* 537 538### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 539 540 * Fixed two buffer overflows in punycode decoding functions. 541 542 A buffer overrun can be triggered in X.509 certificate verification, 543 specifically in name constraint checking. Note that this occurs after 544 certificate chain signature verification and requires either a CA to 545 have signed the malicious certificate or for the application to continue 546 certificate verification despite failure to construct a path to a trusted 547 issuer. 548 549 In a TLS client, this can be triggered by connecting to a malicious 550 server. In a TLS server, this can be triggered if the server requests 551 client authentication and a malicious client connects. 552 553 An attacker can craft a malicious email address to overflow 554 an arbitrary number of bytes containing the `.` character (decimal 46) 555 on the stack. This buffer overflow could result in a crash (causing a 556 denial of service). 557 ([CVE-2022-3786]) 558 559 An attacker can craft a malicious email address to overflow four 560 attacker-controlled bytes on the stack. This buffer overflow could 561 result in a crash (causing a denial of service) or potentially remote code 562 execution depending on stack layout for any given platform/compiler. 563 ([CVE-2022-3602]) 564 565 *Paul Dale* 566 567 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 568 parameters in OpenSSL code. 569 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 570 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 571 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 572 Using these invalid names may cause algorithms to use slower methods 573 that ignore the CRT parameters. 574 575 *Shane Lontis* 576 577 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 578 operations. 579 580 *Tomáš Mráz* 581 582 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 583 data to be signed before signing the certificate. 584 585 *Gibeom Gwon* 586 587 * Added RIPEMD160 to the default provider. 588 589 *Paul Dale* 590 591 * Ensured that the key share group sent or accepted for the key exchange 592 is allowed for the protocol version. 593 594 *Matt Caswell* 595 596### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 597 598 * OpenSSL supports creating a custom cipher via the legacy 599 EVP_CIPHER_meth_new() function and associated function calls. This function 600 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 601 to use the new provider mechanism in order to implement custom ciphers. 602 603 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 604 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 605 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 606 and decryption initialisation functions). Instead of using the custom cipher 607 directly it incorrectly tries to fetch an equivalent cipher from the 608 available providers. An equivalent cipher is found based on the NID passed to 609 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 610 given cipher. However it is possible for an application to incorrectly pass 611 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 612 is used in this way the OpenSSL encryption/decryption initialisation function 613 will match the NULL cipher as being equivalent and will fetch this from the 614 available providers. This will succeed if the default provider has been 615 loaded (or if a third party provider has been loaded that offers this 616 cipher). Using the NULL cipher means that the plaintext is emitted as the 617 ciphertext. 618 619 Applications are only affected by this issue if they call 620 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 621 encryption/decryption initialisation function. Applications that only use 622 SSL/TLS are not impacted by this issue. 623 ([CVE-2022-3358]) 624 625 *Matt Caswell* 626 627 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 628 on MacOS 10.11 629 630 *Richard Levitte* 631 632 * Fixed the linux-mips64 Configure target which was missing the 633 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 634 platform. 635 636 *Adam Joseph* 637 638 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 639 ticket 640 641 *Matt Caswell* 642 643 * Correctly handle a retransmitted ClientHello in DTLS 644 645 *Matt Caswell* 646 647 * Fixed detection of ktls support in cross-compile environment on Linux 648 649 *Tomas Mraz* 650 651 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 652 against 3.0.x 653 654 *Paul Dale* 655 656 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 657 report correct results in some cases 658 659 *Matt Caswell* 660 661 * Fix UWP builds by defining VirtualLock 662 663 *Charles Milette* 664 665 * For known safe primes use the minimum key length according to RFC 7919. 666 Longer private key sizes unnecessarily raise the cycles needed to compute the 667 shared secret without any increase of the real security. This fixes a 668 regression from 1.1.1 where these shorter keys were generated for the known 669 safe primes. 670 671 *Tomas Mraz* 672 673 * Added the loongarch64 target 674 675 *Shi Pujin* 676 677 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 678 only passed to the FIPS provider and not to the default or legacy provider. 679 680 *Juergen Christ* 681 682 * Fixed reported performance degradation on aarch64. Restored the 683 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 684 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 685 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 686 The new algorithm is still used for 32 bit targets. 687 688 *Bernd Edlinger* 689 690 * Added a missing header for memcmp that caused compilation failure on some 691 platforms 692 693 *Gregor Jasny* 694 695### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 696 697 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 698 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 699 This issue makes the RSA implementation with 2048 bit private keys 700 incorrect on such machines and memory corruption will happen during 701 the computation. As a consequence of the memory corruption an attacker 702 may be able to trigger a remote code execution on the machine performing 703 the computation. 704 705 SSL/TLS servers or other servers using 2048 bit RSA private keys running 706 on machines supporting AVX512IFMA instructions of the X86_64 architecture 707 are affected by this issue. 708 ([CVE-2022-2274]) 709 710 *Xi Ruoyao* 711 712 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 713 implementation would not encrypt the entirety of the data under some 714 circumstances. This could reveal sixteen bytes of data that was 715 preexisting in the memory that wasn't written. In the special case of 716 "in place" encryption, sixteen bytes of the plaintext would be revealed. 717 718 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 719 they are both unaffected. 720 ([CVE-2022-2097]) 721 722 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 723 724### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 725 726 * In addition to the c_rehash shell command injection identified in 727 CVE-2022-1292, further bugs where the c_rehash script does not 728 properly sanitise shell metacharacters to prevent command injection have been 729 fixed. 730 731 When the CVE-2022-1292 was fixed it was not discovered that there 732 are other places in the script where the file names of certificates 733 being hashed were possibly passed to a command executed through the shell. 734 735 This script is distributed by some operating systems in a manner where 736 it is automatically executed. On such operating systems, an attacker 737 could execute arbitrary commands with the privileges of the script. 738 739 Use of the c_rehash script is considered obsolete and should be replaced 740 by the OpenSSL rehash command line tool. 741 (CVE-2022-2068) 742 743 *Daniel Fiala, Tomáš Mráz* 744 745 * Case insensitive string comparison no longer uses locales. It has instead 746 been directly implemented. 747 748 *Paul Dale* 749 750### Changes between 3.0.2 and 3.0.3 [3 May 2022] 751 752 * Case insensitive string comparison is reimplemented via new locale-agnostic 753 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 754 comparison. The previous implementation had problems when the Turkish locale 755 was used. 756 757 *Dmitry Belyavskiy* 758 759 * Fixed a bug in the c_rehash script which was not properly sanitising shell 760 metacharacters to prevent command injection. This script is distributed by 761 some operating systems in a manner where it is automatically executed. On 762 such operating systems, an attacker could execute arbitrary commands with the 763 privileges of the script. 764 765 Use of the c_rehash script is considered obsolete and should be replaced 766 by the OpenSSL rehash command line tool. 767 (CVE-2022-1292) 768 769 *Tomáš Mráz* 770 771 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 772 certificate on an OCSP response. The bug caused the function in the case 773 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 774 response (meaning a successful verification) even in the case where the 775 response signing certificate fails to verify. 776 777 It is anticipated that most users of `OCSP_basic_verify` will not use the 778 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 779 a negative value (indicating a fatal error) in the case of a certificate 780 verification failure. The normal expected return value in this case would be 781 0. 782 783 This issue also impacts the command line OpenSSL "ocsp" application. When 784 verifying an ocsp response with the "-no_cert_checks" option the command line 785 application will report that the verification is successful even though it 786 has in fact failed. In this case the incorrect successful response will also 787 be accompanied by error messages showing the failure and contradicting the 788 apparently successful result. 789 ([CVE-2022-1343]) 790 791 *Matt Caswell* 792 793 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 794 AAD data as the MAC key. This made the MAC key trivially predictable. 795 796 An attacker could exploit this issue by performing a man-in-the-middle attack 797 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 798 that the modified data would still pass the MAC integrity check. 799 800 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 801 endpoint will always be rejected by the recipient and the connection will 802 fail at that point. Many application protocols require data to be sent from 803 the client to the server first. Therefore, in such a case, only an OpenSSL 804 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 805 806 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 807 sent in both directions. In this case both clients and servers could be 808 affected, regardless of the application protocol. 809 810 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 811 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 812 the handshake when using this ciphersuite. 813 814 The confidentiality of data is not impacted by this issue, i.e. an attacker 815 cannot decrypt data that has been encrypted using this ciphersuite - they can 816 only modify it. 817 818 In order for this attack to work both endpoints must legitimately negotiate 819 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 820 OpenSSL 3.0, and is not available within the default provider or the default 821 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 822 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 823 following must have occurred: 824 825 1) OpenSSL must have been compiled with the (non-default) compile time option 826 enable-weak-ssl-ciphers 827 828 2) OpenSSL must have had the legacy provider explicitly loaded (either 829 through application code or via configuration) 830 831 3) The ciphersuite must have been explicitly added to the ciphersuite list 832 833 4) The libssl security level must have been set to 0 (default is 1) 834 835 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 836 837 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 838 others that both endpoints have in common 839 (CVE-2022-1434) 840 841 *Matt Caswell* 842 843 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 844 occuppied by the removed hash table entries. 845 846 This function is used when decoding certificates or keys. If a long lived 847 process periodically decodes certificates or keys its memory usage will 848 expand without bounds and the process might be terminated by the operating 849 system causing a denial of service. Also traversing the empty hash table 850 entries will take increasingly more time. 851 852 Typically such long lived processes might be TLS clients or TLS servers 853 configured to accept client certificate authentication. 854 (CVE-2022-1473) 855 856 *Hugo Landau, Aliaksei Levin* 857 858 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 859 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 860 statistics are no longer supported. For compatibility, these statistics are 861 still listed in the output but are now always reported as zero. 862 863 *Hugo Landau* 864 865### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 866 867 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 868 for non-prime moduli. 869 870 Internally this function is used when parsing certificates that contain 871 elliptic curve public keys in compressed form or explicit elliptic curve 872 parameters with a base point encoded in compressed form. 873 874 It is possible to trigger the infinite loop by crafting a certificate that 875 has invalid explicit curve parameters. 876 877 Since certificate parsing happens prior to verification of the certificate 878 signature, any process that parses an externally supplied certificate may thus 879 be subject to a denial of service attack. The infinite loop can also be 880 reached when parsing crafted private keys as they can contain explicit 881 elliptic curve parameters. 882 883 Thus vulnerable situations include: 884 885 - TLS clients consuming server certificates 886 - TLS servers consuming client certificates 887 - Hosting providers taking certificates or private keys from customers 888 - Certificate authorities parsing certification requests from subscribers 889 - Anything else which parses ASN.1 elliptic curve parameters 890 891 Also any other applications that use the BN_mod_sqrt() where the attacker 892 can control the parameter values are vulnerable to this DoS issue. 893 ([CVE-2022-0778]) 894 895 *Tomáš Mráz* 896 897 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 898 to the list of ciphersuites providing Perfect Forward Secrecy as 899 required by SECLEVEL >= 3. 900 901 *Dmitry Belyavskiy, Nicola Tuveri* 902 903 * Made the AES constant time code for no-asm configurations 904 optional due to the resulting 95% performance degradation. 905 The AES constant time code can be enabled, for no assembly 906 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 907 908 *Paul Dale* 909 910 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 911 passphrase strings. 912 913 *Darshan Sen* 914 915 * The negative return value handling of the certificate verification callback 916 was reverted. The replacement is to set the verification retry state with 917 the SSL_set_retry_verify() function. 918 919 *Tomáš Mráz* 920 921### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 922 923 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 924 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 925 verify a certificate supplied by a server. That function may return a 926 negative return value to indicate an internal error (for example out of 927 memory). Such a negative return value is mishandled by OpenSSL and will cause 928 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 929 success and a subsequent call to SSL_get_error() to return the value 930 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 931 returned by OpenSSL if the application has previously called 932 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 933 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 934 totally unexpected and applications may not behave correctly as a result. The 935 exact behaviour will depend on the application but it could result in 936 crashes, infinite loops or other similar incorrect responses. 937 938 This issue is made more serious in combination with a separate bug in OpenSSL 939 3.0 that will cause X509_verify_cert() to indicate an internal error when 940 processing a certificate chain. This will occur where a certificate does not 941 include the Subject Alternative Name extension but where a Certificate 942 Authority has enforced name constraints. This issue can occur even with valid 943 chains. 944 ([CVE-2021-4044]) 945 946 *Matt Caswell* 947 948 * Corrected a few file name and file reference bugs in the build, 949 installation and setup scripts, which lead to installation verification 950 failures. Slightly enhanced the installation verification script. 951 952 *Richard Levitte* 953 954 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 955 keys. 956 957 *Richard Levitte* 958 959 * Fixed PVK encoder to properly query for the passphrase. 960 961 *Tomáš Mráz* 962 963 * Multiple fixes in the OSSL_HTTP API functions. 964 965 *David von Oheimb* 966 967 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 968 OSSL_PARAM_INTEGER data type and return error on negative numbers 969 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 970 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 971 972 *Richard Levitte* 973 974 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 975 976 *Tomáš Mráz* 977 978 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 979 980 *Allan Jude* 981 982 * Multiple threading fixes. 983 984 *Matt Caswell* 985 986 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 987 988 *Tomáš Mráz* 989 990 * Allow fetching an operation from the provider that owns an unexportable key 991 as a fallback if that is still allowed by the property query. 992 993 *Richard Levitte* 994 995### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 996 997 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 998 deprecated. 999 1000 *Matt Caswell* 1001 1002 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 1003 S390X capability vector to zero. This simplifies testing of different code 1004 paths on S390X architecture. 1005 1006 *Patrick Steuer* 1007 1008 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 1009 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 1010 SP 800-38D". The communication will fail at this point. 1011 1012 *Paul Dale* 1013 1014 * The EC_GROUP_clear_free() function is deprecated as there is nothing 1015 confidential in EC_GROUP data. 1016 1017 *Nicola Tuveri* 1018 1019 * The byte order mark (BOM) character is ignored if encountered at the 1020 beginning of a PEM-formatted file. 1021 1022 *Dmitry Belyavskiy* 1023 1024 * Added CMS support for the Russian GOST algorithms. 1025 1026 *Dmitry Belyavskiy* 1027 1028 * Due to move of the implementation of cryptographic operations 1029 to the providers, validation of various operation parameters can 1030 be postponed until the actual operation is executed where previously 1031 it happened immediately when an operation parameter was set. 1032 1033 For example when setting an unsupported curve with 1034 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 1035 fail but later keygen operations with the EVP_PKEY_CTX will fail. 1036 1037 *OpenSSL team members and many third party contributors* 1038 1039 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 1040 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 1041 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 1042 instead to retrieve these algorithms from a provider. 1043 1044 *Shane Lontis* 1045 1046 * On build targets where the multilib postfix is set in the build 1047 configuration the libdir directory was changing based on whether 1048 the lib directory with the multilib postfix exists on the system 1049 or not. This unpredictable behavior was removed and eventual 1050 multilib postfix is now always added to the default libdir. Use 1051 `--libdir=lib` to override the libdir if adding the postfix is 1052 undesirable. 1053 1054 *Jan Lána* 1055 1056 * The triple DES key wrap functionality now conforms to RFC 3217 but is 1057 no longer interoperable with OpenSSL 1.1.1. 1058 1059 *Paul Dale* 1060 1061 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 1062 function codes, this function can only cause problems for calling 1063 applications. 1064 1065 *Paul Dale* 1066 1067 * Add a configurable flag to output date formats as ISO 8601. Does not 1068 change the default date format. 1069 1070 *William Edmisten* 1071 1072 * Version of MSVC earlier than 1300 could get link warnings, which could 1073 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 1074 Support for this flag has been removed. 1075 1076 *Rich Salz* 1077 1078 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 1079 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 1080 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 1081 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 1082 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 1083 1084 *Rich Salz* 1085 1086 * The signatures of the functions to get and set options on SSL and 1087 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 1088 Some source code changes may be required. 1089 1090 *Rich Salz* 1091 1092 * The public definitions of conf_method_st and conf_st have been 1093 deprecated. They will be made opaque in a future release. 1094 1095 *Rich Salz and Tomáš Mráz* 1096 1097 * Client-initiated renegotiation is disabled by default. To allow it, use 1098 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 1099 flag, or the "ClientRenegotiation" config parameter as appropriate. 1100 1101 *Rich Salz* 1102 1103 * Add "abspath" and "includedir" pragma's to config files, to prevent, 1104 or modify relative pathname inclusion. 1105 1106 *Rich Salz* 1107 1108 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 1109 validated. Please consult the README-FIPS and 1110 README-PROVIDERS files, as well as the migration guide. 1111 1112 *OpenSSL team members and many third party contributors* 1113 1114 * For the key types DH and DHX the allowed settable parameters are now different. 1115 1116 *Shane Lontis* 1117 1118 * The openssl commands that read keys, certificates, and CRLs now 1119 automatically detect the PEM or DER format of the input files. 1120 1121 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 1122 1123 * Added enhanced PKCS#12 APIs which accept a library context. 1124 1125 *Jon Spillett* 1126 1127 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 1128 1129 *Matt Caswell* 1130 1131 * Added support for Kernel TLS (KTLS). 1132 1133 *Boris Pismenny, John Baldwin and Andrew Gallatin* 1134 1135 * Support for RFC 5746 secure renegotiation is now required by default for 1136 SSL or TLS connections to succeed. 1137 1138 *Benjamin Kaduk* 1139 1140 * The signature of the `copy` functional parameter of the 1141 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 1142 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 1143 the signature of the `pub_decode` functional parameter of the 1144 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 1145 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 1146 1147 *David von Oheimb* 1148 1149 * The error return values from some control calls (ctrl) have changed. 1150 1151 *Paul Dale* 1152 1153 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 1154 1155 *Shane Lontis* 1156 1157 * Many functions in the EVP_ namespace that are getters of values from 1158 implementations or contexts were renamed to include get or get0 in their 1159 names. Old names are provided as macro aliases for compatibility and 1160 are not deprecated. 1161 1162 *Tomáš Mráz* 1163 1164 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 1165 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 1166 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 1167 are deprecated. 1168 1169 *Tomáš Mráz* 1170 1171 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 1172 more key types. 1173 1174 * The output from the command line applications may have minor 1175 changes. 1176 1177 *Paul Dale* 1178 1179 * The output from numerous "printing" may have minor changes. 1180 1181 *David von Oheimb* 1182 1183 * Windows thread synchronization uses read/write primitives (SRWLock) when 1184 supported by the OS, otherwise CriticalSection continues to be used. 1185 1186 *Vincent Drake* 1187 1188 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 1189 work on read only BIO source/sinks that do not support these functions. 1190 This allows piping or redirection of a file BIO using stdin to be buffered 1191 into memory. This is used internally in OSSL_DECODER_from_bio(). 1192 1193 *Shane Lontis* 1194 1195 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 1196 this function would return one of the values OSSL_STORE_INFO_NAME, 1197 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 1198 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 1199 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 1200 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 1201 using this function should be amended to handle the changed return value. 1202 1203 *Richard Levitte* 1204 1205 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 1206 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 1207 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 1208 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 1209 contains more than one certificate identifier: This means that all 1210 certificates referenced there MUST be part of the validation chain. 1211 1212 *David von Oheimb* 1213 1214 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 1215 RC5, DESX and DES have been moved to the legacy provider. 1216 1217 *Matt Caswell* 1218 1219 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 1220 RIPEMD-160 have been moved to the legacy provider. 1221 1222 *Matt Caswell* 1223 1224 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 1225 provided key. 1226 1227 *Dmitry Belyavskiy* 1228 1229 * The deprecated functions EVP_PKEY_get0_RSA(), 1230 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 1231 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 1232 well as the similarly named "get1" functions behave differently in 1233 OpenSSL 3.0. 1234 1235 *Matt Caswell* 1236 1237 * A number of functions handling low-level keys or engines were deprecated 1238 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 1239 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 1240 EVP_PKEY_get0_siphash(). 1241 1242 *Matt Caswell* 1243 1244 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 1245 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 1246 will need to load the legacy crypto provider. This includes these PBE 1247 algorithms which use this KDF: 1248 - NID_pbeWithMD2AndDES_CBC 1249 - NID_pbeWithMD5AndDES_CBC 1250 - NID_pbeWithSHA1AndRC2_CBC 1251 - NID_pbeWithMD2AndRC2_CBC 1252 - NID_pbeWithMD5AndRC2_CBC 1253 - NID_pbeWithSHA1AndDES_CBC 1254 1255 *Jon Spillett* 1256 1257 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 1258 BIO_debug_callback() functions. 1259 1260 *Tomáš Mráz* 1261 1262 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 1263 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 1264 1265 *Tomáš Mráz* 1266 1267 * The RAND_METHOD APIs have been deprecated. 1268 1269 *Paul Dale* 1270 1271 * The SRP APIs have been deprecated. 1272 1273 *Matt Caswell* 1274 1275 * Add a compile time option to prevent the caching of provider fetched 1276 algorithms. This is enabled by including the no-cached-fetch option 1277 at configuration time. 1278 1279 *Paul Dale* 1280 1281 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 1282 count of PKCS12_DEFAULT_ITER. 1283 1284 *Tomáš Mráz and Sahana Prasad* 1285 1286 * The openssl speed command does not use low-level API calls anymore. 1287 1288 *Tomáš Mráz* 1289 1290 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 1291 capable processors. 1292 1293 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1294 1295 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 1296 1297 *Matt Caswell* 1298 1299 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 1300 providers may supply their own group implementations (using either the "key 1301 exchange" or the "key encapsulation" methods) which will automatically be 1302 detected and used by libssl. 1303 1304 *Matt Caswell, Nicola Tuveri* 1305 1306 * The undocumented function X509_certificate_type() has been deprecated; 1307 1308 *Rich Salz* 1309 1310 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 1311 1312 *Tomáš Mráz* 1313 1314 * Removed RSA padding mode for SSLv23 (which was only used for 1315 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 1316 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 1317 `rsautl` command. 1318 1319 *Rich Salz* 1320 1321 * Deprecated the obsolete X9.31 RSA key generation related functions. 1322 1323 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 1324 is not allowed to return a value > 1, this is no more taken as failure. 1325 1326 *Viktor Dukhovni and David von Oheimb* 1327 1328 * Deprecated the obsolete X9.31 RSA key generation related functions 1329 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 1330 BN_X931_generate_prime_ex(). 1331 1332 *Tomáš Mráz* 1333 1334 * The default key generation method for the regular 2-prime RSA keys was 1335 changed to the FIPS 186-4 B.3.6 method. 1336 1337 *Shane Lontis* 1338 1339 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 1340 1341 *Kurt Roeckx* 1342 1343 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1344 1345 *Rich Salz* 1346 1347 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1348 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1349 1350 *Rich Salz, Richard Levitte, and David von Oheimb* 1351 1352 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1353 1354 *David von Oheimb* 1355 1356 * Deprecated `OCSP_parse_url()`. 1357 1358 *David von Oheimb* 1359 1360 * Validation of SM2 keys has been separated from the validation of regular EC 1361 keys. 1362 1363 *Nicola Tuveri* 1364 1365 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1366 switches: a validation failure triggers an early exit, returning a failure 1367 exit status to the parent process. 1368 1369 *Nicola Tuveri* 1370 1371 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1372 to ignore unknown ciphers. 1373 1374 *Otto Hollmann* 1375 1376 * The `-cipher-commands` and `-digest-commands` options 1377 of the command line utility `list` have been deprecated. 1378 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1379 1380 *Dmitry Belyavskiy* 1381 1382 * Added convenience functions for generating asymmetric key pairs: 1383 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1384 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1385 1386 *David von Oheimb* 1387 1388 * All of the low level EC_KEY functions have been deprecated. 1389 1390 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1391 1392 * Deprecated all the libcrypto and libssl error string loading 1393 functions. 1394 1395 *Richard Levitte* 1396 1397 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1398 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1399 deprecated. 1400 1401 *Matt Caswell* 1402 1403 * The `-crypt` option to the `passwd` command line tool has been removed. 1404 1405 *Paul Dale* 1406 1407 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1408 were removed. 1409 1410 *Rich Salz* 1411 1412 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1413 1414 *Shane Lontis* 1415 1416 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1417 EVP_PKEY_get1_tls_encodedpoint(). 1418 1419 *Matt Caswell* 1420 1421 * The security callback, which can be customised by application code, supports 1422 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1423 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1424 1425 *Matt Caswell* 1426 1427 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1428 interface. Their functionality remains unchanged. 1429 1430 *Jordan Montgomery* 1431 1432 * Added new option for 'openssl list', '-providers', which will display the 1433 list of loaded providers, their names, version and status. It optionally 1434 displays their gettable parameters. 1435 1436 *Paul Dale* 1437 1438 * Removed EVP_PKEY_set_alias_type(). 1439 1440 *Richard Levitte* 1441 1442 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1443 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1444 1445 *Jeremy Walch* 1446 1447 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1448 parameters are still checked for type safety at compile time via helper 1449 inline functions. 1450 1451 *Matt Caswell* 1452 1453 * Remove the RAND_DRBG API 1454 1455 *Paul Dale and Matthias St. Pierre* 1456 1457 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1458 as well as actual hostnames. 1459 1460 *David Woodhouse* 1461 1462 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1463 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1464 conversely, silently ignore DTLS protocol version bounds when configuring 1465 TLS-based contexts. The commands can be repeated to set bounds of both 1466 types. The same applies with the corresponding "min_protocol" and 1467 "max_protocol" command-line switches, in case some application uses both TLS 1468 and DTLS. 1469 1470 SSL_CTX instances that are created for a fixed protocol version (e.g. 1471 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1472 attempts to apply bounds to these protocol versions would result in an 1473 error. Now only the "version-flexible" SSL_CTX instances are subject to 1474 limits in configuration files in command-line options. 1475 1476 *Viktor Dukhovni* 1477 1478 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1479 going forward. 1480 1481 *Paul Dale* 1482 1483 * Reworked the recorded ERR codes to make better space for system errors. 1484 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1485 given code is a system error (true) or an OpenSSL error (false). 1486 1487 *Richard Levitte* 1488 1489 * Reworked the test perl framework to better allow parallel testing. 1490 1491 *Nicola Tuveri and David von Oheimb* 1492 1493 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1494 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1495 1496 *Shane Lontis* 1497 1498 * 'Configure' has been changed to figure out the configuration target if 1499 none is given on the command line. Consequently, the 'config' script is 1500 now only a mere wrapper. All documentation is changed to only mention 1501 'Configure'. 1502 1503 *Rich Salz and Richard Levitte* 1504 1505 * Added a library context `OSSL_LIB_CTX` that applications as well as 1506 other libraries can use to form a separate context within which 1507 libcrypto operations are performed. 1508 1509 *Richard Levitte* 1510 1511 * Added various `_ex` functions to the OpenSSL API that support using 1512 a non-default `OSSL_LIB_CTX`. 1513 1514 *OpenSSL team* 1515 1516 * Handshake now fails if Extended Master Secret extension is dropped 1517 on renegotiation. 1518 1519 *Tomáš Mráz* 1520 1521 * Dropped interactive mode from the `openssl` program. 1522 1523 *Richard Levitte* 1524 1525 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1526 1527 *David von Oheimb and Shane Lontis* 1528 1529 * Deprecated `EC_METHOD_get_field_type()`. 1530 1531 *Billy Bob Brumley* 1532 1533 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1534 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1535 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1536 1537 *Billy Bob Brumley* 1538 1539 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1540 1541 *Billy Bob Brumley* 1542 1543 * Add CAdES-BES signature verification support, mostly derived 1544 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1545 1546 *Filipe Raimundo da Silva* 1547 1548 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1549 1550 *Antonio Iacono* 1551 1552 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1553 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1554 1555 *Jakub Zelenka* 1556 1557 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1558 1559 *Billy Bob Brumley* 1560 1561 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1562 EC_KEY_precompute_mult(). 1563 1564 *Billy Bob Brumley* 1565 1566 * Deprecated EC_POINTs_mul(). 1567 1568 *Billy Bob Brumley* 1569 1570 * Removed FIPS_mode() and FIPS_mode_set(). 1571 1572 *Shane Lontis* 1573 1574 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1575 1576 *Dmitry Belyavskiy* 1577 1578 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1579 EC_POINT_get_Jprojective_coordinates_GFp(). 1580 1581 *Billy Bob Brumley* 1582 1583 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1584 arrays to be more easily constructed via a series of utility functions. 1585 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1586 the various push functions and finally convert to a passable OSSL_PARAM 1587 array using OSSL_PARAM_BLD_to_param(). 1588 1589 *Paul Dale* 1590 1591 * The security strength of SHA1 and MD5 based signatures in TLS has been 1592 reduced. 1593 1594 *Kurt Roeckx* 1595 1596 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1597 contain a provider side internal key. 1598 1599 *Richard Levitte* 1600 1601 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1602 1603 *Richard Levitte* 1604 1605 * Project text documents not yet having a proper file name extension 1606 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1607 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1608 1609 *David von Oheimb* 1610 1611 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1612 have been converted to Markdown with the goal to produce documents 1613 which not only look pretty when viewed online in the browser, but 1614 remain well readable inside a plain text editor. 1615 1616 To achieve this goal, a 'minimalistic' Markdown style has been applied 1617 which avoids formatting elements that interfere too much with the 1618 reading flow in the text file. For example, it 1619 1620 * avoids [ATX headings][] and uses [setext headings][] instead 1621 (which works for `<h1>` and `<h2>` headings only). 1622 * avoids [inline links][] and uses [reference links][] instead. 1623 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1624 1625 [ATX headings]: https://github.github.com/gfm/#atx-headings 1626 [setext headings]: https://github.github.com/gfm/#setext-headings 1627 [inline links]: https://github.github.com/gfm/#inline-link 1628 [reference links]: https://github.github.com/gfm/#reference-link 1629 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1630 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1631 1632 *Matthias St. Pierre* 1633 1634 * The test suite is changed to preserve results of each test recipe. 1635 A new directory test-runs/ with subdirectories named like the 1636 test recipes are created in the build tree for this purpose. 1637 1638 *Richard Levitte* 1639 1640 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1641 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1642 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1643 1644 *David von Oheimb, Martin Peylo* 1645 1646 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1647 It supports arbitrary request and response content types, GET redirection, 1648 TLS, connections via HTTP(S) proxies, connections and exchange via 1649 user-defined BIOs (allowing implicit connections), persistent connections, 1650 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1651 The legacy OCSP-focused (and only partly documented) API 1652 is retained for backward compatibility, while most of it is deprecated. 1653 1654 *David von Oheimb* 1655 1656 * Added `util/check-format.pl`, a tool for checking adherence to the 1657 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1658 The checks performed are incomplete and yield some false positives. 1659 Still the tool should be useful for detecting most typical glitches. 1660 1661 *David von Oheimb* 1662 1663 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1664 If domain name resolution yields multiple IP addresses all of them are tried 1665 after `connect()` failures. 1666 1667 *David von Oheimb* 1668 1669 * All of the low level RSA functions have been deprecated. 1670 1671 *Paul Dale* 1672 1673 * X509 certificates signed using SHA1 are no longer allowed at security 1674 level 1 and above. 1675 1676 *Kurt Roeckx* 1677 1678 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1679 modified to use PKEY APIs. These commands are now in maintenance mode 1680 and no new features will be added to them. 1681 1682 *Paul Dale* 1683 1684 * The command line utility rsautl has been deprecated. 1685 1686 *Paul Dale* 1687 1688 * The command line utilities genrsa and rsa have been modified to use PKEY 1689 APIs. They now write PKCS#8 keys by default. These commands are now in 1690 maintenance mode and no new features will be added to them. 1691 1692 *Paul Dale* 1693 1694 * All of the low level DH functions have been deprecated. 1695 1696 *Paul Dale and Matt Caswell* 1697 1698 * All of the low level DSA functions have been deprecated. 1699 1700 *Paul Dale* 1701 1702 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1703 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1704 1705 *Richard Levitte* 1706 1707 * Deprecated low level ECDH and ECDSA functions. 1708 1709 *Paul Dale* 1710 1711 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1712 1713 *Richard Levitte* 1714 1715 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1716 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1717 a new formulation to include all the things it can be used for, 1718 as well as words of caution. 1719 1720 *Richard Levitte* 1721 1722 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1723 1724 *Paul Dale* 1725 1726 * All of the low level HMAC functions have been deprecated. 1727 1728 *Paul Dale and David von Oheimb* 1729 1730 * Over two thousand fixes were made to the documentation, including: 1731 - Common options (such as -rand/-writerand, TLS version control, etc) 1732 were refactored and point to newly-enhanced descriptions in openssl.pod. 1733 - Added style conformance for all options (with help from Richard Levitte), 1734 documented all reported missing options, added a CI build to check 1735 that all options are documented and that no unimplemented options 1736 are documented. 1737 - Documented some internals, such as all use of environment variables. 1738 - Addressed all internal broken L<> references. 1739 1740 *Rich Salz* 1741 1742 * All of the low level CMAC functions have been deprecated. 1743 1744 *Paul Dale* 1745 1746 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1747 functions have been deprecated. 1748 1749 *Paul Dale and David von Oheimb* 1750 1751 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1752 set of functions. The documentation mentioned negative values for some 1753 errors, but this was never the case, so the mention of negative values 1754 was removed. 1755 1756 Code that followed the documentation and thereby check with something 1757 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1758 1759 *Richard Levitte* 1760 1761 * All of the low level cipher functions have been deprecated. 1762 1763 *Matt Caswell and Paul Dale* 1764 1765 * Removed include/openssl/opensslconf.h.in and replaced it with 1766 include/openssl/configuration.h.in, which differs in not including 1767 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1768 was added to include both. 1769 1770 This allows internal hacks where one might need to modify the set 1771 of configured macros, for example this if deprecated symbols are 1772 still supposed to be available internally: 1773 1774 #include <openssl/configuration.h> 1775 1776 #undef OPENSSL_NO_DEPRECATED 1777 #define OPENSSL_SUPPRESS_DEPRECATED 1778 1779 #include <openssl/macros.h> 1780 1781 This should not be used by applications that use the exported 1782 symbols, as that will lead to linking errors. 1783 1784 *Richard Levitte* 1785 1786 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1787 used in exponentiation with 512-bit moduli. No EC algorithms are 1788 affected. Analysis suggests that attacks against 2-prime RSA1024, 1789 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1790 difficult to perform and are not believed likely. Attacks against DH512 1791 are considered just feasible. However, for an attack the target would 1792 have to re-use the DH512 private key, which is not recommended anyway. 1793 Also applications directly using the low-level API BN_mod_exp may be 1794 affected if they use BN_FLG_CONSTTIME. 1795 ([CVE-2019-1551]) 1796 1797 *Andy Polyakov* 1798 1799 * Most memory-debug features have been deprecated, and the functionality 1800 replaced with no-ops. 1801 1802 *Rich Salz* 1803 1804 * Added documentation for the STACK API. 1805 1806 *Rich Salz* 1807 1808 * Introduced a new method type and API, OSSL_ENCODER, to represent 1809 generic encoders. These do the same sort of job that PEM writers 1810 and d2i functions do, but with support for methods supplied by 1811 providers, and the possibility for providers to support other 1812 formats as well. 1813 1814 *Richard Levitte* 1815 1816 * Introduced a new method type and API, OSSL_DECODER, to represent 1817 generic decoders. These do the same sort of job that PEM readers 1818 and i2d functions do, but with support for methods supplied by 1819 providers, and the possibility for providers to support other 1820 formats as well. 1821 1822 *Richard Levitte* 1823 1824 * Added a .pragma directive to the syntax of configuration files, to 1825 allow varying behavior in a supported and predictable manner. 1826 Currently added pragma: 1827 1828 .pragma dollarid:on 1829 1830 This allows dollar signs to be a keyword character unless it's 1831 followed by a opening brace or parenthesis. This is useful for 1832 platforms where dollar signs are commonly used in names, such as 1833 volume names and system directory names on VMS. 1834 1835 *Richard Levitte* 1836 1837 * Added functionality to create an EVP_PKEY from user data. 1838 1839 *Richard Levitte* 1840 1841 * Change the interpretation of the '--api' configuration option to 1842 mean that this is a desired API compatibility level with no 1843 further meaning. The previous interpretation, that this would 1844 also mean to remove all deprecated symbols up to and including 1845 the given version, no requires that 'no-deprecated' is also used 1846 in the configuration. 1847 1848 When building applications, the desired API compatibility level 1849 can be set with the OPENSSL_API_COMPAT macro like before. For 1850 API compatibility version below 3.0, the old style numerical 1851 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1852 For version 3.0 and on, the value is expected to be the decimal 1853 value calculated from the major and minor version like this: 1854 1855 MAJOR * 10000 + MINOR * 100 1856 1857 Examples: 1858 1859 -DOPENSSL_API_COMPAT=30000 For 3.0 1860 -DOPENSSL_API_COMPAT=30200 For 3.2 1861 1862 To hide declarations that are deprecated up to and including the 1863 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1864 given when building the application as well. 1865 1866 *Richard Levitte* 1867 1868 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1869 access to certificate and CRL stores via URIs and OSSL_STORE 1870 loaders. 1871 1872 This adds the following functions: 1873 1874 - X509_LOOKUP_store() 1875 - X509_STORE_load_file() 1876 - X509_STORE_load_path() 1877 - X509_STORE_load_store() 1878 - SSL_add_store_cert_subjects_to_stack() 1879 - SSL_CTX_set_default_verify_store() 1880 - SSL_CTX_load_verify_file() 1881 - SSL_CTX_load_verify_dir() 1882 - SSL_CTX_load_verify_store() 1883 1884 *Richard Levitte* 1885 1886 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1887 The presence of this system service is determined at run-time. 1888 1889 *Richard Levitte* 1890 1891 * Added functionality to create an EVP_PKEY context based on data 1892 for methods from providers. This takes an algorithm name and a 1893 property query string and simply stores them, with the intent 1894 that any operation that uses this context will use those strings 1895 to fetch the needed methods implicitly, thereby making the port 1896 of application written for pre-3.0 OpenSSL easier. 1897 1898 *Richard Levitte* 1899 1900 * The undocumented function NCONF_WIN32() has been deprecated; for 1901 conversion details see the HISTORY section of doc/man5/config.pod 1902 1903 *Rich Salz* 1904 1905 * Introduced the new functions EVP_DigestSignInit_ex() and 1906 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1907 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1908 pages for further details. 1909 1910 *Matt Caswell* 1911 1912 * Over two thousand fixes were made to the documentation, including: 1913 adding missing command flags, better style conformance, documentation 1914 of internals, etc. 1915 1916 *Rich Salz, Richard Levitte* 1917 1918 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1919 X25519, X448, Ed25519 and Ed448. 1920 1921 *Patrick Steuer* 1922 1923 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1924 the first value. 1925 1926 *Jon Spillett* 1927 1928 * Deprecated the public definition of `ERR_STATE` as well as the function 1929 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1930 opaque type. 1931 1932 *Richard Levitte* 1933 1934 * Added ERR functionality to give callers access to the stored function 1935 names that have replaced the older function code based functions. 1936 1937 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1938 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1939 ERR_peek_error_all() and ERR_peek_last_error_all(). 1940 1941 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1942 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1943 ERR_func_error_string(). 1944 1945 *Richard Levitte* 1946 1947 * Extended testing to be verbose for failing tests only. The make variables 1948 VERBOSE_FAILURE or VF can be used to enable this: 1949 1950 $ make VF=1 test # Unix 1951 $ mms /macro=(VF=1) test ! OpenVMS 1952 $ nmake VF=1 test # Windows 1953 1954 *Richard Levitte* 1955 1956 * Added the `-copy_extensions` option to the `x509` command for use with 1957 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1958 all extensions in the request are copied to the certificate or vice versa. 1959 1960 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1961 1962 * Added the `-copy_extensions` option to the `req` command for use with 1963 `-x509`. When given with the `copy` or `copyall` argument, 1964 all extensions in the certification request are copied to the certificate. 1965 1966 *David von Oheimb* 1967 1968 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 1969 they generate are by default RFC 5280 compliant in the following sense: 1970 There is a subjectKeyIdentifier extension with a hash value of the public key 1971 and for not self-signed certs there is an authorityKeyIdentifier extension 1972 with a keyIdentifier field or issuer information identifying the signing key. 1973 This is done unless some configuration overrides the new default behavior, 1974 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 1975 1976 *David von Oheimb* 1977 1978 * Added several checks to `X509_verify_cert()` according to requirements in 1979 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 1980 (which may be done by using the CLI option `-x509_strict`): 1981 * The basicConstraints of CA certificates must be marked critical. 1982 * CA certificates must explicitly include the keyUsage extension. 1983 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 1984 * The issuer name of any certificate must not be empty. 1985 * The subject name of CA certs, certs with keyUsage crlSign, 1986 and certs without subjectAlternativeName must not be empty. 1987 * If a subjectAlternativeName extension is given it must not be empty. 1988 * The signatureAlgorithm field and the cert signature must be consistent. 1989 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 1990 must not be marked critical. 1991 * The authorityKeyIdentifier must be given for X.509v3 certs 1992 unless they are self-signed. 1993 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 1994 1995 *David von Oheimb* 1996 1997 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 1998 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 1999 2000 *Tomáš Mráz* 2001 2002 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2003 used even when parsing explicit parameters, when loading a encoded key 2004 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2005 `EC_GROUP_new_from_ecparameters()`. 2006 This prevents bypass of security hardening and performance gains, 2007 especially for curves with specialized EC_METHODs. 2008 By default, if a key encoded with explicit parameters is loaded and later 2009 encoded, the output is still encoded with explicit parameters, even if 2010 internally a "named" EC_GROUP is used for computation. 2011 2012 *Nicola Tuveri* 2013 2014 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2015 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2016 NULL. After this change, only the cofactor parameter can be NULL. It also 2017 does some minimal sanity checks on the passed order. 2018 ([CVE-2019-1547]) 2019 2020 *Billy Bob Brumley* 2021 2022 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2023 An attack is simple, if the first CMS_recipientInfo is valid but the 2024 second CMS_recipientInfo is chosen ciphertext. If the second 2025 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2026 encryption key will be replaced by garbage, and the message cannot be 2027 decoded, but if the RSA decryption fails, the correct encryption key is 2028 used and the recipient will not notice the attack. 2029 As a work around for this potential attack the length of the decrypted 2030 key must be equal to the cipher default key length, in case the 2031 certifiate is not given and all recipientInfo are tried out. 2032 The old behaviour can be re-enabled in the CMS code by setting the 2033 CMS_DEBUG_DECRYPT flag. 2034 2035 *Bernd Edlinger* 2036 2037 * Early start up entropy quality from the DEVRANDOM seed source has been 2038 improved for older Linux systems. The RAND subsystem will wait for 2039 /dev/random to be producing output before seeding from /dev/urandom. 2040 The seeded state is stored for future library initialisations using 2041 a system global shared memory segment. The shared memory identifier 2042 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2043 the desired value. The default identifier is 114. 2044 2045 *Paul Dale* 2046 2047 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 2048 when primes for RSA keys are computed. 2049 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2050 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2051 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 2052 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2053 This avoids possible fingerprinting of newly generated RSA modules. 2054 2055 *Bernd Edlinger* 2056 2057 * Correct the extended master secret constant on EBCDIC systems. Without this 2058 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2059 negotiate EMS will fail. Unfortunately this also means that TLS connections 2060 between EBCDIC systems with this fix, and EBCDIC systems without this 2061 fix will fail if they negotiate EMS. 2062 2063 *Matt Caswell* 2064 2065 * Changed the library initialisation so that the config file is now loaded 2066 by default. This was already the case for libssl. It now occurs for both 2067 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 2068 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 2069 2070 *Matt Caswell* 2071 2072 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 2073 where the former acts as a replacement for `ERR_put_error()`, and the 2074 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 2075 `ERR_raise_data()` adds more flexibility by taking a format string and 2076 an arbitrary number of arguments following it, to be processed with 2077 `BIO_snprintf()`. 2078 2079 *Richard Levitte* 2080 2081 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 2082 to check if a named provider is loaded and available. When called, it 2083 will also activate all fallback providers if such are still present. 2084 2085 *Richard Levitte* 2086 2087 * Enforce a minimum DH modulus size of 512 bits. 2088 2089 *Bernd Edlinger* 2090 2091 * Changed DH parameters to generate the order q subgroup instead of 2q. 2092 Previously generated DH parameters are still accepted by DH_check 2093 but DH_generate_key works around that by clearing bit 0 of the 2094 private key for those. This avoids leaking bit 0 of the private key. 2095 2096 *Bernd Edlinger* 2097 2098 * Significantly reduce secure memory usage by the randomness pools. 2099 2100 *Paul Dale* 2101 2102 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 2103 deprecated. 2104 2105 *Rich Salz* 2106 2107 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 2108 algorithms. An implementation of a key exchange algorithm can be obtained 2109 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 2110 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 2111 the older EVP_PKEY_derive_init() function. See the man pages for the new 2112 functions for further details. 2113 2114 *Matt Caswell* 2115 2116 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 2117 2118 *Matt Caswell* 2119 2120 * Removed the function names from error messages and deprecated the 2121 xxx_F_xxx define's. 2122 2123 *Richard Levitte* 2124 2125 * Removed NextStep support and the macro OPENSSL_UNISTD 2126 2127 *Rich Salz* 2128 2129 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 2130 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 2131 Also removed "export var as function" capability; we do not export 2132 variables, only functions. 2133 2134 *Rich Salz* 2135 2136 * RC5_32_set_key has been changed to return an int type, with 0 indicating 2137 an error and 1 indicating success. In previous versions of OpenSSL this 2138 was a void type. If a key was set longer than the maximum possible this 2139 would crash. 2140 2141 *Matt Caswell* 2142 2143 * Support SM2 signing and verification schemes with X509 certificate. 2144 2145 *Paul Yang* 2146 2147 * Use SHA256 as the default digest for TS query in the `ts` app. 2148 2149 *Tomáš Mráz* 2150 2151 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 2152 2153 *Shane Lontis* 2154 2155 * Default cipher lists/suites are now available via a function, the 2156 #defines are deprecated. 2157 2158 *Todd Short* 2159 2160 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 2161 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 2162 for Windows Store apps easier. Also, the "no-uplink" option has been added. 2163 2164 *Kenji Mouri* 2165 2166 * Join the directories crypto/x509 and crypto/x509v3 2167 2168 *Richard Levitte* 2169 2170 * Added command 'openssl kdf' that uses the EVP_KDF API. 2171 2172 *Shane Lontis* 2173 2174 * Added command 'openssl mac' that uses the EVP_MAC API. 2175 2176 *Shane Lontis* 2177 2178 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 2179 as default directories. Also added the command 'openssl info' 2180 for scripting purposes. 2181 2182 *Richard Levitte* 2183 2184 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 2185 deprecated. 2186 2187 *Matt Caswell* 2188 2189 * Add prediction resistance to the DRBG reseeding process. 2190 2191 *Paul Dale* 2192 2193 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 2194 mandated by IEEE Std 1619-2018. 2195 2196 *Paul Dale* 2197 2198 * Added newline escaping functionality to a filename when using openssl dgst. 2199 This output format is to replicate the output format found in the `*sum` 2200 checksum programs. This aims to preserve backward compatibility. 2201 2202 *Matt Eaton, Richard Levitte, and Paul Dale* 2203 2204 * Removed the heartbeat message in DTLS feature, as it has very 2205 little usage and doesn't seem to fulfill a valuable purpose. 2206 The configuration option is now deprecated. 2207 2208 *Richard Levitte* 2209 2210 * Changed the output of 'openssl {digestname} < file' to display the 2211 digest name in its output. 2212 2213 *Richard Levitte* 2214 2215 * Added a new generic trace API which provides support for enabling 2216 instrumentation through trace output. 2217 2218 *Richard Levitte & Matthias St. Pierre* 2219 2220 * Added build tests for C++. These are generated files that only do one 2221 thing, to include one public OpenSSL head file each. This tests that 2222 the public header files can be usefully included in a C++ application. 2223 2224 This test isn't enabled by default. It can be enabled with the option 2225 'enable-buildtest-c++'. 2226 2227 *Richard Levitte* 2228 2229 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 2230 2231 *Robbie Harwood* 2232 2233 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 2234 2235 *Simo Sorce* 2236 2237 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 2238 2239 *Shane Lontis* 2240 2241 * Added KMAC to EVP_MAC. 2242 2243 *Shane Lontis* 2244 2245 * Added property based algorithm implementation selection framework to 2246 the core. 2247 2248 *Paul Dale* 2249 2250 * Added SCA hardening for modular field inversion in EC_GROUP through 2251 a new dedicated field_inv() pointer in EC_METHOD. 2252 This also addresses a leakage affecting conversions from projective 2253 to affine coordinates. 2254 2255 *Billy Bob Brumley, Nicola Tuveri* 2256 2257 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 2258 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 2259 those algorithms that were already supported through the EVP_PKEY API 2260 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 2261 and scrypt are now wrappers that call EVP_KDF. 2262 2263 *David Makepeace* 2264 2265 * Build devcrypto engine as a dynamic engine. 2266 2267 *Eneas U de Queiroz* 2268 2269 * Add keyed BLAKE2 to EVP_MAC. 2270 2271 *Antoine Salon* 2272 2273 * Fix a bug in the computation of the endpoint-pair shared secret used 2274 by DTLS over SCTP. This breaks interoperability with older versions 2275 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 2276 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 2277 interoperability with such broken implementations. However, enabling 2278 this switch breaks interoperability with correct implementations. 2279 2280 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 2281 re-used X509_PUBKEY object if the second PUBKEY is malformed. 2282 2283 *Bernd Edlinger* 2284 2285 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 2286 2287 *Richard Levitte* 2288 2289 * Changed the license to the Apache License v2.0. 2290 2291 *Richard Levitte* 2292 2293 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 2294 2295 - Major releases (indicated by incrementing the MAJOR release number) 2296 may introduce incompatible API/ABI changes. 2297 - Minor releases (indicated by incrementing the MINOR release number) 2298 may introduce new features but retain API/ABI compatibility. 2299 - Patch releases (indicated by incrementing the PATCH number) 2300 are intended for bug fixes and other improvements of existing 2301 features only (like improving performance or adding documentation) 2302 and retain API/ABI compatibility. 2303 2304 *Richard Levitte* 2305 2306 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 2307 2308 *Todd Short* 2309 2310 * Remove the 'dist' target and add a tarball building script. The 2311 'dist' target has fallen out of use, and it shouldn't be 2312 necessary to configure just to create a source distribution. 2313 2314 *Richard Levitte* 2315 2316 * Recreate the OS390-Unix config target. It no longer relies on a 2317 special script like it did for OpenSSL pre-1.1.0. 2318 2319 *Richard Levitte* 2320 2321 * Instead of having the source directories listed in Configure, add 2322 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 2323 look into. 2324 2325 *Richard Levitte* 2326 2327 * Add GMAC to EVP_MAC. 2328 2329 *Paul Dale* 2330 2331 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 2332 2333 *Richard Levitte* 2334 2335 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 2336 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 2337 to facilitate the continued use of MACs through raw private keys in 2338 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 2339 2340 *Richard Levitte* 2341 2342 * Deprecate ECDH_KDF_X9_62(). 2343 2344 *Antoine Salon* 2345 2346 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2347 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2348 are retained for backwards compatibility. 2349 2350 *Antoine Salon* 2351 2352 * AES-XTS mode now enforces that its two keys are different to mitigate 2353 the attacked described in "Efficient Instantiations of Tweakable 2354 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2355 Details of this attack can be obtained from: 2356 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2357 2358 *Paul Dale* 2359 2360 * Rename the object files, i.e. give them other names than in previous 2361 versions. Their names now include the name of the final product, as 2362 well as its type mnemonic (bin, lib, shlib). 2363 2364 *Richard Levitte* 2365 2366 * Added new option for 'openssl list', '-objects', which will display the 2367 list of built in objects, i.e. OIDs with names. 2368 2369 *Richard Levitte* 2370 2371 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2372 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2373 be set explicitly. 2374 2375 *Chris Novakovic* 2376 2377 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2378 improves application performance by removing data copies and providing 2379 applications with zero-copy system calls such as sendfile and splice. 2380 2381 *Boris Pismenny* 2382 2383 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2384 2385 *Martin Elshuber* 2386 2387 * `PKCS12_parse` now maintains the order of the parsed certificates 2388 when outputting them via `*ca` (rather than reversing it). 2389 2390 *David von Oheimb* 2391 2392 * Deprecated pthread fork support methods. 2393 2394 *Randall S. Becker* 2395 2396 * Added support for FFDHE key exchange in TLS 1.3. 2397 2398 *Raja Ashok* 2399 2400 * Added a new concept for OpenSSL plugability: providers. This 2401 functionality is designed to replace the ENGINE API and ENGINE 2402 implementations, and to be much more dynamic, allowing provider 2403 authors to introduce new algorithms among other things, as long as 2404 there's an API that supports the algorithm type. 2405 2406 With this concept comes a new core API for interaction between 2407 libcrypto and provider implementations. Public libcrypto functions 2408 that want to use providers do so through this core API. 2409 2410 The main documentation for this core API is found in 2411 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2412 refer to other manuals describing the API specific for supported 2413 algorithm types (also called operations). 2414 2415 *The OpenSSL team* 2416 2417OpenSSL 1.1.1 2418------------- 2419 2420### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2421 2422 * Avoid loading of a dynamic engine twice. 2423 2424 *Bernd Edlinger* 2425 2426 * Prioritise DANE TLSA issuer certs over peer certs 2427 2428 *Viktor Dukhovni* 2429 2430 * Fixed random API for MacOS prior to 10.12 2431 2432 These MacOS versions don't support the CommonCrypto APIs 2433 2434 *Lenny Primak* 2435 2436### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2437 2438 * Fixed an SM2 Decryption Buffer Overflow. 2439 2440 In order to decrypt SM2 encrypted data an application is expected to 2441 call the API function EVP_PKEY_decrypt(). Typically an application will 2442 call this function twice. The first time, on entry, the "out" parameter 2443 can be NULL and, on exit, the "outlen" parameter is populated with the 2444 buffer size required to hold the decrypted plaintext. The application 2445 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2446 again, but this time passing a non-NULL value for the "out" parameter. 2447 2448 A bug in the implementation of the SM2 decryption code means that the 2449 calculation of the buffer size required to hold the plaintext returned 2450 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2451 size required by the second call. This can lead to a buffer overflow 2452 when EVP_PKEY_decrypt() is called by the application a second time with 2453 a buffer that is too small. 2454 2455 A malicious attacker who is able present SM2 content for decryption to 2456 an application could cause attacker chosen data to overflow the buffer 2457 by up to a maximum of 62 bytes altering the contents of other data held 2458 after the buffer, possibly changing application behaviour or causing 2459 the application to crash. The location of the buffer is application 2460 dependent but is typically heap allocated. 2461 ([CVE-2021-3711]) 2462 2463 *Matt Caswell* 2464 2465 * Fixed various read buffer overruns processing ASN.1 strings 2466 2467 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2468 structure which contains a buffer holding the string data and a field 2469 holding the buffer length. This contrasts with normal C strings which 2470 are repesented as a buffer for the string data which is terminated 2471 with a NUL (0) byte. 2472 2473 Although not a strict requirement, ASN.1 strings that are parsed using 2474 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2475 well as any string whose value has been set with the ASN1_STRING_set() 2476 function will additionally NUL terminate the byte array in the 2477 ASN1_STRING structure. 2478 2479 However, it is possible for applications to directly construct valid 2480 ASN1_STRING structures which do not NUL terminate the byte array by 2481 directly setting the "data" and "length" fields in the ASN1_STRING 2482 array. This can also happen by using the ASN1_STRING_set0() function. 2483 2484 Numerous OpenSSL functions that print ASN.1 data have been found to 2485 assume that the ASN1_STRING byte array will be NUL terminated, even 2486 though this is not guaranteed for strings that have been directly 2487 constructed. Where an application requests an ASN.1 structure to be 2488 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2489 been directly constructed by the application without NUL terminating 2490 the "data" field, then a read buffer overrun can occur. 2491 2492 The same thing can also occur during name constraints processing 2493 of certificates (for example if a certificate has been directly 2494 constructed by the application instead of loading it via the OpenSSL 2495 parsing functions, and the certificate contains non NUL terminated 2496 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2497 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2498 2499 If a malicious actor can cause an application to directly construct an 2500 ASN1_STRING and then process it through one of the affected OpenSSL 2501 functions then this issue could be hit. This might result in a crash 2502 (causing a Denial of Service attack). It could also result in the 2503 disclosure of private memory contents (such as private keys, or 2504 sensitive plaintext). 2505 ([CVE-2021-3712]) 2506 2507 *Matt Caswell* 2508 2509### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2510 2511 * Fixed a problem with verifying a certificate chain when using the 2512 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2513 the certificates present in a certificate chain. It is not set by default. 2514 2515 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2516 the chain that have explicitly encoded elliptic curve parameters was added 2517 as an additional strict check. 2518 2519 An error in the implementation of this check meant that the result of a 2520 previous check to confirm that certificates in the chain are valid CA 2521 certificates was overwritten. This effectively bypasses the check 2522 that non-CA certificates must not be able to issue other certificates. 2523 2524 If a "purpose" has been configured then there is a subsequent opportunity 2525 for checks that the certificate is a valid CA. All of the named "purpose" 2526 values implemented in libcrypto perform this check. Therefore, where 2527 a purpose is set the certificate chain will still be rejected even when the 2528 strict flag has been used. A purpose is set by default in libssl client and 2529 server certificate verification routines, but it can be overridden or 2530 removed by an application. 2531 2532 In order to be affected, an application must explicitly set the 2533 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2534 for the certificate verification or, in the case of TLS client or server 2535 applications, override the default purpose. 2536 ([CVE-2021-3450]) 2537 2538 *Tomáš Mráz* 2539 2540 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2541 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2542 renegotiation ClientHello omits the signature_algorithms extension (where it 2543 was present in the initial ClientHello), but includes a 2544 signature_algorithms_cert extension then a NULL pointer dereference will 2545 result, leading to a crash and a denial of service attack. 2546 2547 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2548 (which is the default configuration). OpenSSL TLS clients are not impacted by 2549 this issue. 2550 ([CVE-2021-3449]) 2551 2552 *Peter Kästle and Samuel Sapalski* 2553 2554### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2555 2556 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2557 create a unique hash value based on the issuer and serial number data 2558 contained within an X509 certificate. However it was failing to correctly 2559 handle any errors that may occur while parsing the issuer field (which might 2560 occur if the issuer field is maliciously constructed). This may subsequently 2561 result in a NULL pointer deref and a crash leading to a potential denial of 2562 service attack. 2563 ([CVE-2021-23841]) 2564 2565 *Matt Caswell* 2566 2567 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2568 padding mode to correctly check for rollback attacks. This is considered a 2569 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2570 CVE-2021-23839. 2571 2572 *Matt Caswell* 2573 2574 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2575 functions. Previously they could overflow the output length argument in some 2576 cases where the input length is close to the maximum permissable length for 2577 an integer on the platform. In such cases the return value from the function 2578 call would be 1 (indicating success), but the output length value would be 2579 negative. This could cause applications to behave incorrectly or crash. 2580 ([CVE-2021-23840]) 2581 2582 *Matt Caswell* 2583 2584 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2585 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2586 could be exploited in a side channel attack to recover the password. Since 2587 the attack is local host only this is outside of the current OpenSSL 2588 threat model and therefore no CVE is assigned. 2589 2590 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2591 issue. 2592 2593 *Matt Caswell* 2594 2595### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2596 2597 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2598 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2599 If an attacker can control both items being compared then this could lead 2600 to a possible denial of service attack. OpenSSL itself uses the 2601 GENERAL_NAME_cmp function for two purposes: 2602 1) Comparing CRL distribution point names between an available CRL and a 2603 CRL distribution point embedded in an X509 certificate 2604 2) When verifying that a timestamp response token signer matches the 2605 timestamp authority name (exposed via the API functions 2606 TS_RESP_verify_response and TS_RESP_verify_token) 2607 ([CVE-2020-1971]) 2608 2609 *Matt Caswell* 2610 2611### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2612 2613 * Certificates with explicit curve parameters are now disallowed in 2614 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2615 2616 *Tomáš Mráz* 2617 2618 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2619 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2620 conversely, silently ignore DTLS protocol version bounds when configuring 2621 TLS-based contexts. The commands can be repeated to set bounds of both 2622 types. The same applies with the corresponding "min_protocol" and 2623 "max_protocol" command-line switches, in case some application uses both TLS 2624 and DTLS. 2625 2626 SSL_CTX instances that are created for a fixed protocol version (e.g. 2627 TLSv1_server_method()) also silently ignore version bounds. Previously 2628 attempts to apply bounds to these protocol versions would result in an 2629 error. Now only the "version-flexible" SSL_CTX instances are subject to 2630 limits in configuration files in command-line options. 2631 2632 *Viktor Dukhovni* 2633 2634 * Handshake now fails if Extended Master Secret extension is dropped 2635 on renegotiation. 2636 2637 *Tomáš Mráz* 2638 2639 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2640 2641### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2642 2643 * Fixed segmentation fault in SSL_check_chain() 2644 Server or client applications that call the SSL_check_chain() function 2645 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2646 dereference as a result of incorrect handling of the 2647 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2648 or unrecognised signature algorithm is received from the peer. This could 2649 be exploited by a malicious peer in a Denial of Service attack. 2650 ([CVE-2020-1967]) 2651 2652 *Benjamin Kaduk* 2653 2654 * Added AES consttime code for no-asm configurations 2655 an optional constant time support for AES was added 2656 when building openssl for no-asm. 2657 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2658 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2659 At this time this feature is by default disabled. 2660 It will be enabled by default in 3.0. 2661 2662 *Bernd Edlinger* 2663 2664### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2665 2666 * Revert the change of EOF detection while reading in libssl to avoid 2667 regressions in applications depending on the current way of reporting 2668 the EOF. As the existing method is not fully accurate the change to 2669 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2670 branch and will be present in the 3.0 release. 2671 2672 *Tomáš Mráz* 2673 2674 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2675 when primes for RSA keys are computed. 2676 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2677 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2678 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2679 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2680 This avoids possible fingerprinting of newly generated RSA modules. 2681 2682 *Bernd Edlinger* 2683 2684### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2685 2686 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2687 while reading in libssl then we would report an error back to the 2688 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2689 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2690 therefore give a hint as to what went wrong. 2691 2692 *Matt Caswell* 2693 2694 * Check that ed25519 and ed448 are allowed by the security level. Previously 2695 signature algorithms not using an MD were not being checked that they were 2696 allowed by the security level. 2697 2698 *Kurt Roeckx* 2699 2700 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2701 was not quite right. The behaviour was not consistent between resumption 2702 and normal handshakes, and also not quite consistent with historical 2703 behaviour. The behaviour in various scenarios has been clarified and 2704 it has been updated to make it match historical behaviour as closely as 2705 possible. 2706 2707 *Matt Caswell* 2708 2709 * *[VMS only]* The header files that the VMS compilers include automatically, 2710 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2711 that the C++ compiler doesn't understand. This is a shortcoming in the 2712 compiler, but can be worked around with `__cplusplus` guards. 2713 2714 C++ applications that use OpenSSL libraries must be compiled using the 2715 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2716 functions. Otherwise, only functions with symbols of less than 31 2717 characters can be used, as the linker will not be able to successfully 2718 resolve symbols with longer names. 2719 2720 *Richard Levitte* 2721 2722 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2723 The presence of this system service is determined at run-time. 2724 2725 *Richard Levitte* 2726 2727 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2728 the first value. 2729 2730 *Jon Spillett* 2731 2732### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2733 2734 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2735 number generator (RNG). This was intended to include protection in the 2736 event of a fork() system call in order to ensure that the parent and child 2737 processes did not share the same RNG state. However this protection was not 2738 being used in the default case. 2739 2740 A partial mitigation for this issue is that the output from a high 2741 precision timer is mixed into the RNG state so the likelihood of a parent 2742 and child process sharing state is significantly reduced. 2743 2744 If an application already calls OPENSSL_init_crypto() explicitly using 2745 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2746 ([CVE-2019-1549]) 2747 2748 *Matthias St. Pierre* 2749 2750 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2751 used even when parsing explicit parameters, when loading a encoded key 2752 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2753 `EC_GROUP_new_from_ecparameters()`. 2754 This prevents bypass of security hardening and performance gains, 2755 especially for curves with specialized EC_METHODs. 2756 By default, if a key encoded with explicit parameters is loaded and later 2757 encoded, the output is still encoded with explicit parameters, even if 2758 internally a "named" EC_GROUP is used for computation. 2759 2760 *Nicola Tuveri* 2761 2762 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2763 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2764 NULL. After this change, only the cofactor parameter can be NULL. It also 2765 does some minimal sanity checks on the passed order. 2766 ([CVE-2019-1547]) 2767 2768 *Billy Bob Brumley* 2769 2770 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2771 An attack is simple, if the first CMS_recipientInfo is valid but the 2772 second CMS_recipientInfo is chosen ciphertext. If the second 2773 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2774 encryption key will be replaced by garbage, and the message cannot be 2775 decoded, but if the RSA decryption fails, the correct encryption key is 2776 used and the recipient will not notice the attack. 2777 As a work around for this potential attack the length of the decrypted 2778 key must be equal to the cipher default key length, in case the 2779 certifiate is not given and all recipientInfo are tried out. 2780 The old behaviour can be re-enabled in the CMS code by setting the 2781 CMS_DEBUG_DECRYPT flag. 2782 ([CVE-2019-1563]) 2783 2784 *Bernd Edlinger* 2785 2786 * Early start up entropy quality from the DEVRANDOM seed source has been 2787 improved for older Linux systems. The RAND subsystem will wait for 2788 /dev/random to be producing output before seeding from /dev/urandom. 2789 The seeded state is stored for future library initialisations using 2790 a system global shared memory segment. The shared memory identifier 2791 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2792 the desired value. The default identifier is 114. 2793 2794 *Paul Dale* 2795 2796 * Correct the extended master secret constant on EBCDIC systems. Without this 2797 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2798 negotiate EMS will fail. Unfortunately this also means that TLS connections 2799 between EBCDIC systems with this fix, and EBCDIC systems without this 2800 fix will fail if they negotiate EMS. 2801 2802 *Matt Caswell* 2803 2804 * Use Windows installation paths in the mingw builds 2805 2806 Mingw isn't a POSIX environment per se, which means that Windows 2807 paths should be used for installation. 2808 ([CVE-2019-1552]) 2809 2810 *Richard Levitte* 2811 2812 * Changed DH_check to accept parameters with order q and 2q subgroups. 2813 With order 2q subgroups the bit 0 of the private key is not secret 2814 but DH_generate_key works around that by clearing bit 0 of the 2815 private key for those. This avoids leaking bit 0 of the private key. 2816 2817 *Bernd Edlinger* 2818 2819 * Significantly reduce secure memory usage by the randomness pools. 2820 2821 *Paul Dale* 2822 2823 * Revert the DEVRANDOM_WAIT feature for Linux systems 2824 2825 The DEVRANDOM_WAIT feature added a select() call to wait for the 2826 /dev/random device to become readable before reading from the 2827 /dev/urandom device. 2828 2829 It turned out that this change had negative side effects on 2830 performance which were not acceptable. After some discussion it 2831 was decided to revert this feature and leave it up to the OS 2832 resp. the platform maintainer to ensure a proper initialization 2833 during early boot time. 2834 2835 *Matthias St. Pierre* 2836 2837### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2838 2839 * Add build tests for C++. These are generated files that only do one 2840 thing, to include one public OpenSSL head file each. This tests that 2841 the public header files can be usefully included in a C++ application. 2842 2843 This test isn't enabled by default. It can be enabled with the option 2844 'enable-buildtest-c++'. 2845 2846 *Richard Levitte* 2847 2848 * Enable SHA3 pre-hashing for ECDSA and DSA. 2849 2850 *Patrick Steuer* 2851 2852 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2853 This changes the size when using the `genpkey` command when no size is given. 2854 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2855 generation commands to use 2048 bits by default. 2856 2857 *Kurt Roeckx* 2858 2859 * Reorganize the manual pages to consistently have RETURN VALUES, 2860 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2861 util/fix-doc-nits accordingly. 2862 2863 *Paul Yang, Joshua Lock* 2864 2865 * Add the missing accessor EVP_PKEY_get0_engine() 2866 2867 *Matt Caswell* 2868 2869 * Have commands like `s_client` and `s_server` output the signature scheme 2870 along with other cipher suite parameters when debugging. 2871 2872 *Lorinczy Zsigmond* 2873 2874 * Make OPENSSL_config() error agnostic again. 2875 2876 *Richard Levitte* 2877 2878 * Do the error handling in RSA decryption constant time. 2879 2880 *Bernd Edlinger* 2881 2882 * Prevent over long nonces in ChaCha20-Poly1305. 2883 2884 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2885 for every encryption operation. RFC 7539 specifies that the nonce value 2886 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2887 and front pads the nonce with 0 bytes if it is less than 12 2888 bytes. However it also incorrectly allows a nonce to be set of up to 16 2889 bytes. In this case only the last 12 bytes are significant and any 2890 additional leading bytes are ignored. 2891 2892 It is a requirement of using this cipher that nonce values are 2893 unique. Messages encrypted using a reused nonce value are susceptible to 2894 serious confidentiality and integrity attacks. If an application changes 2895 the default nonce length to be longer than 12 bytes and then makes a 2896 change to the leading bytes of the nonce expecting the new value to be a 2897 new unique nonce then such an application could inadvertently encrypt 2898 messages with a reused nonce. 2899 2900 Additionally the ignored bytes in a long nonce are not covered by the 2901 integrity guarantee of this cipher. Any application that relies on the 2902 integrity of these ignored leading bytes of a long nonce may be further 2903 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2904 is safe because no such use sets such a long nonce value. However user 2905 applications that use this cipher directly and set a non-default nonce 2906 length to be longer than 12 bytes may be vulnerable. 2907 2908 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2909 Greef of Ronomon. 2910 ([CVE-2019-1543]) 2911 2912 *Matt Caswell* 2913 2914 * Add DEVRANDOM_WAIT feature for Linux systems 2915 2916 On older Linux systems where the getrandom() system call is not available, 2917 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2918 Contrary to getrandom(), the /dev/urandom device will not block during 2919 early boot when the kernel CSPRNG has not been seeded yet. 2920 2921 To mitigate this known weakness, use select() to wait for /dev/random to 2922 become readable before reading from /dev/urandom. 2923 2924 * Ensure that SM2 only uses SM3 as digest algorithm 2925 2926 *Paul Yang* 2927 2928### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2929 2930 * Change the info callback signals for the start and end of a post-handshake 2931 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2932 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2933 confused by this and assume that a TLSv1.2 renegotiation has started. This 2934 can break KeyUpdate handling. Instead we no longer signal the start and end 2935 of a post handshake message exchange (although the messages themselves are 2936 still signalled). This could break some applications that were expecting 2937 the old signals. However without this KeyUpdate is not usable for many 2938 applications. 2939 2940 *Matt Caswell* 2941 2942### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2943 2944 * Timing vulnerability in DSA signature generation 2945 2946 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2947 timing side channel attack. An attacker could use variations in the signing 2948 algorithm to recover the private key. 2949 2950 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2951 ([CVE-2018-0734]) 2952 2953 *Paul Dale* 2954 2955 * Timing vulnerability in ECDSA signature generation 2956 2957 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2958 timing side channel attack. An attacker could use variations in the signing 2959 algorithm to recover the private key. 2960 2961 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2962 ([CVE-2018-0735]) 2963 2964 *Paul Dale* 2965 2966 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2967 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2968 of two gigabytes and the error handling improved. 2969 2970 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 2971 categorized as a normal bug, not a security issue, because the DRBG reseeds 2972 automatically and is fully functional even without additional randomness 2973 provided by the application. 2974 2975### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 2976 2977 * Add a new ClientHello callback. Provides a callback interface that gives 2978 the application the ability to adjust the nascent SSL object at the 2979 earliest stage of ClientHello processing, immediately after extensions have 2980 been collected but before they have been processed. In particular, this 2981 callback can adjust the supported TLS versions in response to the contents 2982 of the ClientHello 2983 2984 *Benjamin Kaduk* 2985 2986 * Add SM2 base algorithm support. 2987 2988 *Jack Lloyd* 2989 2990 * s390x assembly pack: add (improved) hardware-support for the following 2991 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 2992 aes-cfb/cfb8, aes-ecb. 2993 2994 *Patrick Steuer* 2995 2996 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 2997 parameter is no longer accepted, as it leads to a corrupt table. NULL 2998 pem_str is reserved for alias entries only. 2999 3000 *Richard Levitte* 3001 3002 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 3003 step for prime curves. The new implementation is based on formulae from 3004 differential addition-and-doubling in homogeneous projective coordinates 3005 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 3006 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 3007 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 3008 to work in projective coordinates. 3009 3010 *Billy Bob Brumley, Nicola Tuveri* 3011 3012 * Change generating and checking of primes so that the error rate of not 3013 being prime depends on the intended use based on the size of the input. 3014 For larger primes this will result in more rounds of Miller-Rabin. 3015 The maximal error rate for primes with more than 1080 bits is lowered 3016 to 2^-128. 3017 3018 *Kurt Roeckx, Annie Yousar* 3019 3020 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3021 3022 *Kurt Roeckx* 3023 3024 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 3025 moving between systems, and to avoid confusion when a Windows build is 3026 done with mingw vs with MSVC. For POSIX installs, there's still a 3027 symlink or copy named 'tsget' to avoid that confusion as well. 3028 3029 *Richard Levitte* 3030 3031 * Revert blinding in ECDSA sign and instead make problematic addition 3032 length-invariant. Switch even to fixed-length Montgomery multiplication. 3033 3034 *Andy Polyakov* 3035 3036 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 3037 step for binary curves. The new implementation is based on formulae from 3038 differential addition-and-doubling in mixed Lopez-Dahab projective 3039 coordinates, modified to independently blind the operands. 3040 3041 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 3042 3043 * Add a scaffold to optionally enhance the Montgomery ladder implementation 3044 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 3045 EC_METHODs to implement their own specialized "ladder step", to take 3046 advantage of more favorable coordinate systems or more efficient 3047 differential addition-and-doubling algorithms. 3048 3049 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 3050 3051 * Modified the random device based seed sources to keep the relevant 3052 file descriptors open rather than reopening them on each access. 3053 This allows such sources to operate in a chroot() jail without 3054 the associated device nodes being available. This behaviour can be 3055 controlled using RAND_keep_random_devices_open(). 3056 3057 *Paul Dale* 3058 3059 * Numerous side-channel attack mitigations have been applied. This may have 3060 performance impacts for some algorithms for the benefit of improved 3061 security. Specific changes are noted in this change log by their respective 3062 authors. 3063 3064 *Matt Caswell* 3065 3066 * AIX shared library support overhaul. Switch to AIX "natural" way of 3067 handling shared libraries, which means collecting shared objects of 3068 different versions and bitnesses in one common archive. This allows to 3069 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 3070 doesn't affect the way 3rd party applications are linked, only how 3071 multi-version installation is managed. 3072 3073 *Andy Polyakov* 3074 3075 * Make ec_group_do_inverse_ord() more robust and available to other 3076 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 3077 mitigations are applied to the fallback BN_mod_inverse(). 3078 When using this function rather than BN_mod_inverse() directly, new 3079 EC cryptosystem implementations are then safer-by-default. 3080 3081 *Billy Bob Brumley* 3082 3083 * Add coordinate blinding for EC_POINT and implement projective 3084 coordinate blinding for generic prime curves as a countermeasure to 3085 chosen point SCA attacks. 3086 3087 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3088 3089 * Add blinding to ECDSA and DSA signatures to protect against side channel 3090 attacks discovered by Keegan Ryan (NCC Group). 3091 3092 *Matt Caswell* 3093 3094 * Enforce checking in the `pkeyutl` command to ensure that the input 3095 length does not exceed the maximum supported digest length when performing 3096 a sign, verify or verifyrecover operation. 3097 3098 *Matt Caswell* 3099 3100 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 3101 I/O in combination with something like select() or poll() will hang. This 3102 can be turned off again using SSL_CTX_clear_mode(). 3103 Many applications do not properly handle non-application data records, and 3104 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 3105 around the problems in those applications, but can also break some. 3106 It's recommended to read the manpages about SSL_read(), SSL_write(), 3107 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 3108 SSL_CTX_set_read_ahead() again. 3109 3110 *Kurt Roeckx* 3111 3112 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3113 now allow empty (zero character) pass phrases. 3114 3115 *Richard Levitte* 3116 3117 * Apply blinding to binary field modular inversion and remove patent 3118 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 3119 3120 *Billy Bob Brumley* 3121 3122 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 3123 binary and prime elliptic curves. 3124 3125 *Billy Bob Brumley* 3126 3127 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 3128 constant time fixed point multiplication. 3129 3130 *Billy Bob Brumley* 3131 3132 * Revise elliptic curve scalar multiplication with timing attack 3133 defenses: ec_wNAF_mul redirects to a constant time implementation 3134 when computing fixed point and variable point multiplication (which 3135 in OpenSSL are mostly used with secret scalars in keygen, sign, 3136 ECDH derive operations). 3137 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 3138 Sohaib ul Hassan* 3139 3140 * Updated CONTRIBUTING 3141 3142 *Rich Salz* 3143 3144 * Updated DRBG / RAND to request nonce and additional low entropy 3145 randomness from the system. 3146 3147 *Matthias St. Pierre* 3148 3149 * Updated 'openssl rehash' to use OpenSSL consistent default. 3150 3151 *Richard Levitte* 3152 3153 * Moved the load of the ssl_conf module to libcrypto, which helps 3154 loading engines that libssl uses before libssl is initialised. 3155 3156 *Matt Caswell* 3157 3158 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 3159 3160 *Matt Caswell* 3161 3162 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 3163 3164 *Ingo Schwarze, Rich Salz* 3165 3166 * Added output of accepting IP address and port for 'openssl s_server' 3167 3168 *Richard Levitte* 3169 3170 * Added a new API for TLSv1.3 ciphersuites: 3171 SSL_CTX_set_ciphersuites() 3172 SSL_set_ciphersuites() 3173 3174 *Matt Caswell* 3175 3176 * Memory allocation failures consistently add an error to the error 3177 stack. 3178 3179 *Rich Salz* 3180 3181 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 3182 in libcrypto when run as setuid/setgid. 3183 3184 *Bernd Edlinger* 3185 3186 * Load any config file by default when libssl is used. 3187 3188 *Matt Caswell* 3189 3190 * Added new public header file <openssl/rand_drbg.h> and documentation 3191 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 3192 3193 *Matthias St. Pierre* 3194 3195 * QNX support removed (cannot find contributors to get their approval 3196 for the license change). 3197 3198 *Rich Salz* 3199 3200 * TLSv1.3 replay protection for early data has been implemented. See the 3201 SSL_read_early_data() man page for further details. 3202 3203 *Matt Caswell* 3204 3205 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 3206 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 3207 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 3208 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 3209 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 3210 configuration has been separated out. See the ciphers man page or the 3211 SSL_CTX_set_ciphersuites() man page for more information. 3212 3213 *Matt Caswell* 3214 3215 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 3216 in responder mode now supports the new "-multi" option, which 3217 spawns the specified number of child processes to handle OCSP 3218 requests. The "-timeout" option now also limits the OCSP 3219 responder's patience to wait to receive the full client request 3220 on a newly accepted connection. Child processes are respawned 3221 as needed, and the CA index file is automatically reloaded 3222 when changed. This makes it possible to run the "ocsp" responder 3223 as a long-running service, making the OpenSSL CA somewhat more 3224 feature-complete. In this mode, most diagnostic messages logged 3225 after entering the event loop are logged via syslog(3) rather than 3226 written to stderr. 3227 3228 *Viktor Dukhovni* 3229 3230 * Added support for X448 and Ed448. Heavily based on original work by 3231 Mike Hamburg. 3232 3233 *Matt Caswell* 3234 3235 * Extend OSSL_STORE with capabilities to search and to narrow the set of 3236 objects loaded. This adds the functions OSSL_STORE_expect() and 3237 OSSL_STORE_find() as well as needed tools to construct searches and 3238 get the search data out of them. 3239 3240 *Richard Levitte* 3241 3242 * Support for TLSv1.3 added. Note that users upgrading from an earlier 3243 version of OpenSSL should review their configuration settings to ensure 3244 that they are still appropriate for TLSv1.3. For further information see: 3245 <https://wiki.openssl.org/index.php/TLS1.3> 3246 3247 *Matt Caswell* 3248 3249 * Grand redesign of the OpenSSL random generator 3250 3251 The default RAND method now utilizes an AES-CTR DRBG according to 3252 NIST standard SP 800-90Ar1. The new random generator is essentially 3253 a port of the default random generator from the OpenSSL FIPS 2.0 3254 object module. It is a hybrid deterministic random bit generator 3255 using an AES-CTR bit stream and which seeds and reseeds itself 3256 automatically using trusted system entropy sources. 3257 3258 Some of its new features are: 3259 - Support for multiple DRBG instances with seed chaining. 3260 - The default RAND method makes use of a DRBG. 3261 - There is a public and private DRBG instance. 3262 - The DRBG instances are fork-safe. 3263 - Keep all global DRBG instances on the secure heap if it is enabled. 3264 - The public and private DRBG instance are per thread for lock free 3265 operation 3266 3267 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 3268 3269 * Changed Configure so it only says what it does and doesn't dump 3270 so much data. Instead, ./configdata.pm should be used as a script 3271 to display all sorts of configuration data. 3272 3273 *Richard Levitte* 3274 3275 * Added processing of "make variables" to Configure. 3276 3277 *Richard Levitte* 3278 3279 * Added SHA512/224 and SHA512/256 algorithm support. 3280 3281 *Paul Dale* 3282 3283 * The last traces of Netware support, first removed in 1.1.0, have 3284 now been removed. 3285 3286 *Rich Salz* 3287 3288 * Get rid of Makefile.shared, and in the process, make the processing 3289 of certain files (rc.obj, or the .def/.map/.opt files produced from 3290 the ordinal files) more visible and hopefully easier to trace and 3291 debug (or make silent). 3292 3293 *Richard Levitte* 3294 3295 * Make it possible to have environment variable assignments as 3296 arguments to config / Configure. 3297 3298 *Richard Levitte* 3299 3300 * Add multi-prime RSA (RFC 8017) support. 3301 3302 *Paul Yang* 3303 3304 * Add SM3 implemented according to GB/T 32905-2016 3305 *Jack Lloyd <jack.lloyd@ribose.com>,* 3306 *Ronald Tse <ronald.tse@ribose.com>,* 3307 *Erick Borsboom <erick.borsboom@ribose.com>* 3308 3309 * Add 'Maximum Fragment Length' TLS extension negotiation and support 3310 as documented in RFC6066. 3311 Based on a patch from Tomasz Moń 3312 3313 *Filipe Raimundo da Silva* 3314 3315 * Add SM4 implemented according to GB/T 32907-2016. 3316 *Jack Lloyd <jack.lloyd@ribose.com>,* 3317 *Ronald Tse <ronald.tse@ribose.com>,* 3318 *Erick Borsboom <erick.borsboom@ribose.com>* 3319 3320 * Reimplement -newreq-nodes and ERR_error_string_n; the 3321 original author does not agree with the license change. 3322 3323 *Rich Salz* 3324 3325 * Add ARIA AEAD TLS support. 3326 3327 *Jon Spillett* 3328 3329 * Some macro definitions to support VS6 have been removed. Visual 3330 Studio 6 has not worked since 1.1.0 3331 3332 *Rich Salz* 3333 3334 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 3335 without clearing the errors. 3336 3337 *Richard Levitte* 3338 3339 * Add "atfork" functions. If building on a system that without 3340 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 3341 requirements. The RAND facility now uses/requires this. 3342 3343 *Rich Salz* 3344 3345 * Add SHA3. 3346 3347 *Andy Polyakov* 3348 3349 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3350 not possible to disable entirely. However, it's still possible to 3351 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3352 as a fallback). 3353 3354 To disable, configure with 'no-ui-console'. 'no-ui' is still 3355 possible to use as an alias. Check at compile time with the 3356 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3357 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3358 3359 *Richard Levitte* 3360 3361 * Add a STORE module, which implements a uniform and URI based reader of 3362 stores that can contain keys, certificates, CRLs and numerous other 3363 objects. The main API is loosely based on a few stdio functions, 3364 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3365 OSSL_STORE_error and OSSL_STORE_close. 3366 The implementation uses backends called "loaders" to implement arbitrary 3367 URI schemes. There is one built in "loader" for the 'file' scheme. 3368 3369 *Richard Levitte* 3370 3371 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3372 then adjusted to work on FreeBSD 8.4 as well. 3373 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3374 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3375 3376 *Richard Levitte* 3377 3378 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3379 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3380 error code calls like this: 3381 3382 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3383 3384 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3385 that can be encoded in C. For the foreseeable future, this will only 3386 affect new modules. 3387 3388 *Richard Levitte and Tim Hudson* 3389 3390 * Removed BSD cryptodev engine. 3391 3392 *Rich Salz* 3393 3394 * Add a build target 'build_all_generated', to build all generated files 3395 and only that. This can be used to prepare everything that requires 3396 things like perl for a system that lacks perl and then move everything 3397 to that system and do the rest of the build there. 3398 3399 *Richard Levitte* 3400 3401 * In the UI interface, make it possible to duplicate the user data. This 3402 can be used by engines that need to retain the data for a longer time 3403 than just the call where this user data is passed. 3404 3405 *Richard Levitte* 3406 3407 * Ignore the '-named_curve auto' value for compatibility of applications 3408 with OpenSSL 1.0.2. 3409 3410 *Tomáš Mráz <tmraz@fedoraproject.org>* 3411 3412 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3413 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3414 alerts across multiple records (some of which could be empty). In practice 3415 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3416 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3417 support this at all. Supporting it adds significant complexity to the 3418 record layer, and its removal is unlikely to cause interoperability 3419 issues. 3420 3421 *Matt Caswell* 3422 3423 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3424 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3425 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3426 in OpenSSL 1.2.0. 3427 3428 *Richard Levitte* 3429 3430 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3431 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3432 3433 *Richard Levitte, Andy Polyakov* 3434 3435 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3436 does for RSA, etc. 3437 3438 *Richard Levitte* 3439 3440 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3441 platform rather than 'mingw'. 3442 3443 *Richard Levitte* 3444 3445 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3446 success if they are asked to add an object which already exists 3447 in the store. This change cascades to other functions which load 3448 certificates and CRLs. 3449 3450 *Paul Dale* 3451 3452 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3453 facilitate stack unwinding even from assembly subroutines. 3454 3455 *Andy Polyakov* 3456 3457 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3458 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3459 3460 *Richard Levitte* 3461 3462 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3463 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3464 which is the minimum version we support. 3465 3466 *Richard Levitte* 3467 3468 * Certificate time validation (X509_cmp_time) enforces stricter 3469 compliance with RFC 5280. Fractional seconds and timezone offsets 3470 are no longer allowed. 3471 3472 *Emilia Käsper* 3473 3474 * Add support for ARIA 3475 3476 *Paul Dale* 3477 3478 * s_client will now send the Server Name Indication (SNI) extension by 3479 default unless the new "-noservername" option is used. The server name is 3480 based on the host provided to the "-connect" option unless overridden by 3481 using "-servername". 3482 3483 *Matt Caswell* 3484 3485 * Add support for SipHash 3486 3487 *Todd Short* 3488 3489 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3490 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3491 prevent issues where no progress is being made and the peer continually 3492 sends unrecognised record types, using up resources processing them. 3493 3494 *Matt Caswell* 3495 3496 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3497 using the algorithm defined in 3498 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3499 3500 *Richard Levitte* 3501 3502 * Heartbeat support has been removed; the ABI is changed for now. 3503 3504 *Richard Levitte, Rich Salz* 3505 3506 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3507 3508 *Emilia Käsper* 3509 3510 * The RSA "null" method, which was partially supported to avoid patent 3511 issues, has been replaced to always returns NULL. 3512 3513 *Rich Salz* 3514 3515OpenSSL 1.1.0 3516------------- 3517 3518### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3519 3520 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3521 used even when parsing explicit parameters, when loading a encoded key 3522 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3523 `EC_GROUP_new_from_ecparameters()`. 3524 This prevents bypass of security hardening and performance gains, 3525 especially for curves with specialized EC_METHODs. 3526 By default, if a key encoded with explicit parameters is loaded and later 3527 encoded, the output is still encoded with explicit parameters, even if 3528 internally a "named" EC_GROUP is used for computation. 3529 3530 *Nicola Tuveri* 3531 3532 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3533 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3534 NULL. After this change, only the cofactor parameter can be NULL. It also 3535 does some minimal sanity checks on the passed order. 3536 ([CVE-2019-1547]) 3537 3538 *Billy Bob Brumley* 3539 3540 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3541 An attack is simple, if the first CMS_recipientInfo is valid but the 3542 second CMS_recipientInfo is chosen ciphertext. If the second 3543 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3544 encryption key will be replaced by garbage, and the message cannot be 3545 decoded, but if the RSA decryption fails, the correct encryption key is 3546 used and the recipient will not notice the attack. 3547 As a work around for this potential attack the length of the decrypted 3548 key must be equal to the cipher default key length, in case the 3549 certifiate is not given and all recipientInfo are tried out. 3550 The old behaviour can be re-enabled in the CMS code by setting the 3551 CMS_DEBUG_DECRYPT flag. 3552 ([CVE-2019-1563]) 3553 3554 *Bernd Edlinger* 3555 3556 * Use Windows installation paths in the mingw builds 3557 3558 Mingw isn't a POSIX environment per se, which means that Windows 3559 paths should be used for installation. 3560 ([CVE-2019-1552]) 3561 3562 *Richard Levitte* 3563 3564### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3565 3566 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3567 This changes the size when using the `genpkey` command when no size is given. 3568 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3569 generation commands to use 2048 bits by default. 3570 3571 *Kurt Roeckx* 3572 3573 * Prevent over long nonces in ChaCha20-Poly1305. 3574 3575 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3576 for every encryption operation. RFC 7539 specifies that the nonce value 3577 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3578 and front pads the nonce with 0 bytes if it is less than 12 3579 bytes. However it also incorrectly allows a nonce to be set of up to 16 3580 bytes. In this case only the last 12 bytes are significant and any 3581 additional leading bytes are ignored. 3582 3583 It is a requirement of using this cipher that nonce values are 3584 unique. Messages encrypted using a reused nonce value are susceptible to 3585 serious confidentiality and integrity attacks. If an application changes 3586 the default nonce length to be longer than 12 bytes and then makes a 3587 change to the leading bytes of the nonce expecting the new value to be a 3588 new unique nonce then such an application could inadvertently encrypt 3589 messages with a reused nonce. 3590 3591 Additionally the ignored bytes in a long nonce are not covered by the 3592 integrity guarantee of this cipher. Any application that relies on the 3593 integrity of these ignored leading bytes of a long nonce may be further 3594 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3595 is safe because no such use sets such a long nonce value. However user 3596 applications that use this cipher directly and set a non-default nonce 3597 length to be longer than 12 bytes may be vulnerable. 3598 3599 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3600 Greef of Ronomon. 3601 ([CVE-2019-1543]) 3602 3603 *Matt Caswell* 3604 3605 * Added SCA hardening for modular field inversion in EC_GROUP through 3606 a new dedicated field_inv() pointer in EC_METHOD. 3607 This also addresses a leakage affecting conversions from projective 3608 to affine coordinates. 3609 3610 *Billy Bob Brumley, Nicola Tuveri* 3611 3612 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3613 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3614 3615 *Bernd Edlinger* 3616 3617 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3618 3619 *Richard Levitte* 3620 3621 * Remove the 'dist' target and add a tarball building script. The 3622 'dist' target has fallen out of use, and it shouldn't be 3623 necessary to configure just to create a source distribution. 3624 3625 *Richard Levitte* 3626 3627### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3628 3629 * Timing vulnerability in DSA signature generation 3630 3631 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3632 timing side channel attack. An attacker could use variations in the signing 3633 algorithm to recover the private key. 3634 3635 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3636 ([CVE-2018-0734]) 3637 3638 *Paul Dale* 3639 3640 * Timing vulnerability in ECDSA signature generation 3641 3642 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3643 timing side channel attack. An attacker could use variations in the signing 3644 algorithm to recover the private key. 3645 3646 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3647 ([CVE-2018-0735]) 3648 3649 *Paul Dale* 3650 3651 * Add coordinate blinding for EC_POINT and implement projective 3652 coordinate blinding for generic prime curves as a countermeasure to 3653 chosen point SCA attacks. 3654 3655 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3656 3657### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3658 3659 * Client DoS due to large DH parameter 3660 3661 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3662 malicious server can send a very large prime value to the client. This will 3663 cause the client to spend an unreasonably long period of time generating a 3664 key for this prime resulting in a hang until the client has finished. This 3665 could be exploited in a Denial Of Service attack. 3666 3667 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3668 ([CVE-2018-0732]) 3669 3670 *Guido Vranken* 3671 3672 * Cache timing vulnerability in RSA Key Generation 3673 3674 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3675 a cache timing side channel attack. An attacker with sufficient access to 3676 mount cache timing attacks during the RSA key generation process could 3677 recover the private key. 3678 3679 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3680 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3681 ([CVE-2018-0737]) 3682 3683 *Billy Brumley* 3684 3685 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3686 parameter is no longer accepted, as it leads to a corrupt table. NULL 3687 pem_str is reserved for alias entries only. 3688 3689 *Richard Levitte* 3690 3691 * Revert blinding in ECDSA sign and instead make problematic addition 3692 length-invariant. Switch even to fixed-length Montgomery multiplication. 3693 3694 *Andy Polyakov* 3695 3696 * Change generating and checking of primes so that the error rate of not 3697 being prime depends on the intended use based on the size of the input. 3698 For larger primes this will result in more rounds of Miller-Rabin. 3699 The maximal error rate for primes with more than 1080 bits is lowered 3700 to 2^-128. 3701 3702 *Kurt Roeckx, Annie Yousar* 3703 3704 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3705 3706 *Kurt Roeckx* 3707 3708 * Add blinding to ECDSA and DSA signatures to protect against side channel 3709 attacks discovered by Keegan Ryan (NCC Group). 3710 3711 *Matt Caswell* 3712 3713 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3714 now allow empty (zero character) pass phrases. 3715 3716 *Richard Levitte* 3717 3718 * Certificate time validation (X509_cmp_time) enforces stricter 3719 compliance with RFC 5280. Fractional seconds and timezone offsets 3720 are no longer allowed. 3721 3722 *Emilia Käsper* 3723 3724 * Fixed a text canonicalisation bug in CMS 3725 3726 Where a CMS detached signature is used with text content the text goes 3727 through a canonicalisation process first prior to signing or verifying a 3728 signature. This process strips trailing space at the end of lines, converts 3729 line terminators to CRLF and removes additional trailing line terminators 3730 at the end of a file. A bug in the canonicalisation process meant that 3731 some characters, such as form-feed, were incorrectly treated as whitespace 3732 and removed. This is contrary to the specification (RFC5485). This fix 3733 could mean that detached text data signed with an earlier version of 3734 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3735 signed with a fixed OpenSSL may fail to verify with an earlier version of 3736 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3737 and use the "-binary" flag (for the "cms" command line application) or set 3738 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3739 3740 *Matt Caswell* 3741 3742### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3743 3744 * Constructed ASN.1 types with a recursive definition could exceed the stack 3745 3746 Constructed ASN.1 types with a recursive definition (such as can be found 3747 in PKCS7) could eventually exceed the stack given malicious input with 3748 excessive recursion. This could result in a Denial Of Service attack. There 3749 are no such structures used within SSL/TLS that come from untrusted sources 3750 so this is considered safe. 3751 3752 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3753 project. 3754 ([CVE-2018-0739]) 3755 3756 *Matt Caswell* 3757 3758 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3759 3760 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3761 effectively reduced to only comparing the least significant bit of each 3762 byte. This allows an attacker to forge messages that would be considered as 3763 authenticated in an amount of tries lower than that guaranteed by the 3764 security claims of the scheme. The module can only be compiled by the 3765 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3766 3767 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3768 (IBM). 3769 ([CVE-2018-0733]) 3770 3771 *Andy Polyakov* 3772 3773 * Add a build target 'build_all_generated', to build all generated files 3774 and only that. This can be used to prepare everything that requires 3775 things like perl for a system that lacks perl and then move everything 3776 to that system and do the rest of the build there. 3777 3778 *Richard Levitte* 3779 3780 * Backport SSL_OP_NO_RENGOTIATION 3781 3782 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3783 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3784 changes this is no longer possible in 1.1.0. Therefore the new 3785 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3786 1.1.0 to provide equivalent functionality. 3787 3788 Note that if an application built against 1.1.0h headers (or above) is run 3789 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3790 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3791 3792 *Matt Caswell* 3793 3794 * Removed the OS390-Unix config target. It relied on a script that doesn't 3795 exist. 3796 3797 *Rich Salz* 3798 3799 * rsaz_1024_mul_avx2 overflow bug on x86_64 3800 3801 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3802 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3803 Analysis suggests that attacks against RSA and DSA as a result of this 3804 defect would be very difficult to perform and are not believed likely. 3805 Attacks against DH1024 are considered just feasible, because most of the 3806 work necessary to deduce information about a private key may be performed 3807 offline. The amount of resources required for such an attack would be 3808 significant. However, for an attack on TLS to be meaningful, the server 3809 would have to share the DH1024 private key among multiple clients, which is 3810 no longer an option since CVE-2016-0701. 3811 3812 This only affects processors that support the AVX2 but not ADX extensions 3813 like Intel Haswell (4th generation). 3814 3815 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3816 was originally found via the OSS-Fuzz project. 3817 ([CVE-2017-3738]) 3818 3819 *Andy Polyakov* 3820 3821### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3822 3823 * bn_sqrx8x_internal carry bug on x86_64 3824 3825 There is a carry propagating bug in the x86_64 Montgomery squaring 3826 procedure. No EC algorithms are affected. Analysis suggests that attacks 3827 against RSA and DSA as a result of this defect would be very difficult to 3828 perform and are not believed likely. Attacks against DH are considered just 3829 feasible (although very difficult) because most of the work necessary to 3830 deduce information about a private key may be performed offline. The amount 3831 of resources required for such an attack would be very significant and 3832 likely only accessible to a limited number of attackers. An attacker would 3833 additionally need online access to an unpatched system using the target 3834 private key in a scenario with persistent DH parameters and a private 3835 key that is shared between multiple clients. 3836 3837 This only affects processors that support the BMI1, BMI2 and ADX extensions 3838 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3839 3840 This issue was reported to OpenSSL by the OSS-Fuzz project. 3841 ([CVE-2017-3736]) 3842 3843 *Andy Polyakov* 3844 3845 * Malformed X.509 IPAddressFamily could cause OOB read 3846 3847 If an X.509 certificate has a malformed IPAddressFamily extension, 3848 OpenSSL could do a one-byte buffer overread. The most likely result 3849 would be an erroneous display of the certificate in text format. 3850 3851 This issue was reported to OpenSSL by the OSS-Fuzz project. 3852 ([CVE-2017-3735]) 3853 3854 *Rich Salz* 3855 3856### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3857 3858 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3859 platform rather than 'mingw'. 3860 3861 *Richard Levitte* 3862 3863 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3864 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3865 which is the minimum version we support. 3866 3867 *Richard Levitte* 3868 3869### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3870 3871 * Encrypt-Then-Mac renegotiation crash 3872 3873 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3874 negotiated where it was not in the original handshake (or vice-versa) then 3875 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3876 and servers are affected. 3877 3878 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3879 ([CVE-2017-3733]) 3880 3881 *Matt Caswell* 3882 3883### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3884 3885 * Truncated packet could crash via OOB read 3886 3887 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3888 cipher is being used, then a truncated packet can cause that host to 3889 perform an out-of-bounds read, usually resulting in a crash. 3890 3891 This issue was reported to OpenSSL by Robert Święcki of Google. 3892 ([CVE-2017-3731]) 3893 3894 *Andy Polyakov* 3895 3896 * Bad (EC)DHE parameters cause a client crash 3897 3898 If a malicious server supplies bad parameters for a DHE or ECDHE key 3899 exchange then this can result in the client attempting to dereference a 3900 NULL pointer leading to a client crash. This could be exploited in a Denial 3901 of Service attack. 3902 3903 This issue was reported to OpenSSL by Guido Vranken. 3904 ([CVE-2017-3730]) 3905 3906 *Matt Caswell* 3907 3908 * BN_mod_exp may produce incorrect results on x86_64 3909 3910 There is a carry propagating bug in the x86_64 Montgomery squaring 3911 procedure. No EC algorithms are affected. Analysis suggests that attacks 3912 against RSA and DSA as a result of this defect would be very difficult to 3913 perform and are not believed likely. Attacks against DH are considered just 3914 feasible (although very difficult) because most of the work necessary to 3915 deduce information about a private key may be performed offline. The amount 3916 of resources required for such an attack would be very significant and 3917 likely only accessible to a limited number of attackers. An attacker would 3918 additionally need online access to an unpatched system using the target 3919 private key in a scenario with persistent DH parameters and a private 3920 key that is shared between multiple clients. For example this can occur by 3921 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3922 similar to CVE-2015-3193 but must be treated as a separate problem. 3923 3924 This issue was reported to OpenSSL by the OSS-Fuzz project. 3925 ([CVE-2017-3732]) 3926 3927 *Andy Polyakov* 3928 3929### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3930 3931 * ChaCha20/Poly1305 heap-buffer-overflow 3932 3933 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3934 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3935 crash. This issue is not considered to be exploitable beyond a DoS. 3936 3937 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3938 ([CVE-2016-7054]) 3939 3940 *Richard Levitte* 3941 3942 * CMS Null dereference 3943 3944 Applications parsing invalid CMS structures can crash with a NULL pointer 3945 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3946 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3947 structure callback if an attempt is made to free certain invalid encodings. 3948 Only CHOICE structures using a callback which do not handle NULL value are 3949 affected. 3950 3951 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3952 ([CVE-2016-7053]) 3953 3954 *Stephen Henson* 3955 3956 * Montgomery multiplication may produce incorrect results 3957 3958 There is a carry propagating bug in the Broadwell-specific Montgomery 3959 multiplication procedure that handles input lengths divisible by, but 3960 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3961 and DH private keys are impossible. This is because the subroutine in 3962 question is not used in operations with the private key itself and an input 3963 of the attacker's direct choice. Otherwise the bug can manifest itself as 3964 transient authentication and key negotiation failures or reproducible 3965 erroneous outcome of public-key operations with specially crafted input. 3966 Among EC algorithms only Brainpool P-512 curves are affected and one 3967 presumably can attack ECDH key negotiation. Impact was not analyzed in 3968 detail, because pre-requisites for attack are considered unlikely. Namely 3969 multiple clients have to choose the curve in question and the server has to 3970 share the private key among them, neither of which is default behaviour. 3971 Even then only clients that chose the curve will be affected. 3972 3973 This issue was publicly reported as transient failures and was not 3974 initially recognized as a security issue. Thanks to Richard Morgan for 3975 providing reproducible case. 3976 ([CVE-2016-7055]) 3977 3978 *Andy Polyakov* 3979 3980 * Removed automatic addition of RPATH in shared libraries and executables, 3981 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 3982 3983 *Richard Levitte* 3984 3985### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 3986 3987 * Fix Use After Free for large message sizes 3988 3989 The patch applied to address CVE-2016-6307 resulted in an issue where if a 3990 message larger than approx 16k is received then the underlying buffer to 3991 store the incoming message is reallocated and moved. Unfortunately a 3992 dangling pointer to the old location is left which results in an attempt to 3993 write to the previously freed location. This is likely to result in a 3994 crash, however it could potentially lead to execution of arbitrary code. 3995 3996 This issue only affects OpenSSL 1.1.0a. 3997 3998 This issue was reported to OpenSSL by Robert Święcki. 3999 ([CVE-2016-6309]) 4000 4001 *Matt Caswell* 4002 4003### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 4004 4005 * OCSP Status Request extension unbounded memory growth 4006 4007 A malicious client can send an excessively large OCSP Status Request 4008 extension. If that client continually requests renegotiation, sending a 4009 large OCSP Status Request extension each time, then there will be unbounded 4010 memory growth on the server. This will eventually lead to a Denial Of 4011 Service attack through memory exhaustion. Servers with a default 4012 configuration are vulnerable even if they do not support OCSP. Builds using 4013 the "no-ocsp" build time option are not affected. 4014 4015 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 4016 ([CVE-2016-6304]) 4017 4018 *Matt Caswell* 4019 4020 * SSL_peek() hang on empty record 4021 4022 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 4023 sends an empty record. This could be exploited by a malicious peer in a 4024 Denial Of Service attack. 4025 4026 This issue was reported to OpenSSL by Alex Gaynor. 4027 ([CVE-2016-6305]) 4028 4029 *Matt Caswell* 4030 4031 * Excessive allocation of memory in tls_get_message_header() and 4032 dtls1_preprocess_fragment() 4033 4034 A (D)TLS message includes 3 bytes for its length in the header for the 4035 message. This would allow for messages up to 16Mb in length. Messages of 4036 this length are excessive and OpenSSL includes a check to ensure that a 4037 peer is sending reasonably sized messages in order to avoid too much memory 4038 being consumed to service a connection. A flaw in the logic of version 4039 1.1.0 means that memory for the message is allocated too early, prior to 4040 the excessive message length check. Due to way memory is allocated in 4041 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 4042 to service a connection. This could lead to a Denial of Service through 4043 memory exhaustion. However, the excessive message length check still takes 4044 place, and this would cause the connection to immediately fail. Assuming 4045 that the application calls SSL_free() on the failed connection in a timely 4046 manner then the 21Mb of allocated memory will then be immediately freed 4047 again. Therefore the excessive memory allocation will be transitory in 4048 nature. This then means that there is only a security impact if: 4049 4050 1) The application does not call SSL_free() in a timely manner in the event 4051 that the connection fails 4052 or 4053 2) The application is working in a constrained environment where there is 4054 very little free memory 4055 or 4056 3) The attacker initiates multiple connection attempts such that there are 4057 multiple connections in a state where memory has been allocated for the 4058 connection; SSL_free() has not yet been called; and there is insufficient 4059 memory to service the multiple requests. 4060 4061 Except in the instance of (1) above any Denial Of Service is likely to be 4062 transitory because as soon as the connection fails the memory is 4063 subsequently freed again in the SSL_free() call. However there is an 4064 increased risk during this period of application crashes due to the lack of 4065 memory - which would then mean a more serious Denial of Service. 4066 4067 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 4068 (CVE-2016-6307 and CVE-2016-6308) 4069 4070 *Matt Caswell* 4071 4072 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 4073 had to be removed. Primary reason is that vendor assembler can't 4074 assemble our modules with -KPIC flag. As result it, assembly 4075 support, was not even available as option. But its lack means 4076 lack of side-channel resistant code, which is incompatible with 4077 security by todays standards. Fortunately gcc is readily available 4078 prepackaged option, which we firmly point at... 4079 4080 *Andy Polyakov* 4081 4082### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 4083 4084 * Windows command-line tool supports UTF-8 opt-in option for arguments 4085 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 4086 (to any value) allows Windows user to access PKCS#12 file generated 4087 with Windows CryptoAPI and protected with non-ASCII password, as well 4088 as files generated under UTF-8 locale on Linux also protected with 4089 non-ASCII password. 4090 4091 *Andy Polyakov* 4092 4093 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 4094 have been disabled by default and removed from DEFAULT, just like RC4. 4095 See the RC4 item below to re-enable both. 4096 4097 *Rich Salz* 4098 4099 * The method for finding the storage location for the Windows RAND seed file 4100 has changed. First we check %RANDFILE%. If that is not set then we check 4101 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 4102 all else fails we fall back to C:\. 4103 4104 *Matt Caswell* 4105 4106 * The EVP_EncryptUpdate() function has had its return type changed from void 4107 to int. A return of 0 indicates and error while a return of 1 indicates 4108 success. 4109 4110 *Matt Caswell* 4111 4112 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 4113 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 4114 off the constant time implementation for RSA, DSA and DH have been made 4115 no-ops and deprecated. 4116 4117 *Matt Caswell* 4118 4119 * Windows RAND implementation was simplified to only get entropy by 4120 calling CryptGenRandom(). Various other RAND-related tickets 4121 were also closed. 4122 4123 *Joseph Wylie Yandle, Rich Salz* 4124 4125 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 4126 and `OPENSSL_LH_`, respectively. The old names are available 4127 with API compatibility. They new names are now completely documented. 4128 4129 *Rich Salz* 4130 4131 * Unify TYPE_up_ref(obj) methods signature. 4132 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 4133 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 4134 int (instead of void) like all others TYPE_up_ref() methods. 4135 So now these methods also check the return value of CRYPTO_atomic_add(), 4136 and the validity of object reference counter. 4137 4138 *fdasilvayy@gmail.com* 4139 4140 * With Windows Visual Studio builds, the .pdb files are installed 4141 alongside the installed libraries and executables. For a static 4142 library installation, ossl_static.pdb is the associate compiler 4143 generated .pdb file to be used when linking programs. 4144 4145 *Richard Levitte* 4146 4147 * Remove openssl.spec. Packaging files belong with the packagers. 4148 4149 *Richard Levitte* 4150 4151 * Automatic Darwin/OSX configuration has had a refresh, it will now 4152 recognise x86_64 architectures automatically. You can still decide 4153 to build for a different bitness with the environment variable 4154 KERNEL_BITS (can be 32 or 64), for example: 4155 4156 KERNEL_BITS=32 ./config 4157 4158 *Richard Levitte* 4159 4160 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 4161 256 bit AES and HMAC with SHA256. 4162 4163 *Steve Henson* 4164 4165 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 4166 4167 *Andy Polyakov* 4168 4169 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 4170 4171 *Rich Salz* 4172 4173 * To enable users to have their own config files and build file templates, 4174 Configure looks in the directory indicated by the environment variable 4175 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 4176 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 4177 name and is used as is. 4178 4179 *Richard Levitte* 4180 4181 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 4182 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 4183 X509_CERT_FILE_CTX was removed. 4184 4185 *Rich Salz* 4186 4187 * "shared" builds are now the default. To create only static libraries use 4188 the "no-shared" Configure option. 4189 4190 *Matt Caswell* 4191 4192 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 4193 All of these option have not worked for some while and are fundamental 4194 algorithms. 4195 4196 *Matt Caswell* 4197 4198 * Make various cleanup routines no-ops and mark them as deprecated. Most 4199 global cleanup functions are no longer required because they are handled 4200 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 4201 Explicitly de-initing can cause problems (e.g. where a library that uses 4202 OpenSSL de-inits, but an application is still using it). The affected 4203 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 4204 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 4205 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 4206 COMP_zlib_cleanup(). 4207 4208 *Matt Caswell* 4209 4210 * --strict-warnings no longer enables runtime debugging options 4211 such as REF_DEBUG. Instead, debug options are automatically 4212 enabled with '--debug' builds. 4213 4214 *Andy Polyakov, Emilia Käsper* 4215 4216 * Made DH and DH_METHOD opaque. The structures for managing DH objects 4217 have been moved out of the public header files. New functions for managing 4218 these have been added. 4219 4220 *Matt Caswell* 4221 4222 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 4223 objects have been moved out of the public header files. New 4224 functions for managing these have been added. 4225 4226 *Richard Levitte* 4227 4228 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 4229 have been moved out of the public header files. New functions for managing 4230 these have been added. 4231 4232 *Matt Caswell* 4233 4234 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 4235 moved out of the public header files. New functions for managing these 4236 have been added. 4237 4238 *Matt Caswell* 4239 4240 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 4241 4242 *Matt Caswell* 4243 4244 * Removed the mk1mf build scripts. 4245 4246 *Richard Levitte* 4247 4248 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 4249 it is always safe to #include a header now. 4250 4251 *Rich Salz* 4252 4253 * Removed the aged BC-32 config and all its supporting scripts 4254 4255 *Richard Levitte* 4256 4257 * Removed support for Ultrix, Netware, and OS/2. 4258 4259 *Rich Salz* 4260 4261 * Add support for HKDF. 4262 4263 *Alessandro Ghedini* 4264 4265 * Add support for blake2b and blake2s 4266 4267 *Bill Cox* 4268 4269 * Added support for "pipelining". Ciphers that have the 4270 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 4271 encryptions/decryptions simultaneously. There are currently no built-in 4272 ciphers with this property but the expectation is that engines will be able 4273 to offer it to significantly improve throughput. Support has been extended 4274 into libssl so that multiple records for a single connection can be 4275 processed in one go (for >=TLS 1.1). 4276 4277 *Matt Caswell* 4278 4279 * Added the AFALG engine. This is an async capable engine which is able to 4280 offload work to the Linux kernel. In this initial version it only supports 4281 AES128-CBC. The kernel must be version 4.1.0 or greater. 4282 4283 *Catriona Lucey* 4284 4285 * OpenSSL now uses a new threading API. It is no longer necessary to 4286 set locking callbacks to use OpenSSL in a multi-threaded environment. There 4287 are two supported threading models: pthreads and windows threads. It is 4288 also possible to configure OpenSSL at compile time for "no-threads". The 4289 old threading API should no longer be used. The functions have been 4290 replaced with "no-op" compatibility macros. 4291 4292 *Alessandro Ghedini, Matt Caswell* 4293 4294 * Modify behavior of ALPN to invoke callback after SNI/servername 4295 callback, such that updates to the SSL_CTX affect ALPN. 4296 4297 *Todd Short* 4298 4299 * Add SSL_CIPHER queries for authentication and key-exchange. 4300 4301 *Todd Short* 4302 4303 * Changes to the DEFAULT cipherlist: 4304 - Prefer (EC)DHE handshakes over plain RSA. 4305 - Prefer AEAD ciphers over legacy ciphers. 4306 - Prefer ECDSA over RSA when both certificates are available. 4307 - Prefer TLSv1.2 ciphers/PRF. 4308 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 4309 default cipherlist. 4310 4311 *Emilia Käsper* 4312 4313 * Change the ECC default curve list to be this, in order: x25519, 4314 secp256r1, secp521r1, secp384r1. 4315 4316 *Rich Salz* 4317 4318 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 4319 disabled by default. They can be re-enabled using the 4320 enable-weak-ssl-ciphers option to Configure. 4321 4322 *Matt Caswell* 4323 4324 * If the server has ALPN configured, but supports no protocols that the 4325 client advertises, send a fatal "no_application_protocol" alert. 4326 This behaviour is SHALL in RFC 7301, though it isn't universally 4327 implemented by other servers. 4328 4329 *Emilia Käsper* 4330 4331 * Add X25519 support. 4332 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 4333 for public and private key encoding using the format documented in 4334 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 4335 key generation and key derivation. 4336 4337 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 4338 X25519(29). 4339 4340 *Steve Henson* 4341 4342 * Deprecate SRP_VBASE_get_by_user. 4343 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4344 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4345 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4346 seed, even if the seed is configured. 4347 4348 Users should use SRP_VBASE_get1_by_user instead. Note that in 4349 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4350 also that even though configuring the SRP seed attempts to hide 4351 invalid usernames by continuing the handshake with fake 4352 credentials, this behaviour is not constant time and no strong 4353 guarantees are made that the handshake is indistinguishable from 4354 that of a valid user. 4355 4356 *Emilia Käsper* 4357 4358 * Configuration change; it's now possible to build dynamic engines 4359 without having to build shared libraries and vice versa. This 4360 only applies to the engines in `engines/`, those in `crypto/engine/` 4361 will always be built into libcrypto (i.e. "static"). 4362 4363 Building dynamic engines is enabled by default; to disable, use 4364 the configuration option "disable-dynamic-engine". 4365 4366 The only requirements for building dynamic engines are the 4367 presence of the DSO module and building with position independent 4368 code, so they will also automatically be disabled if configuring 4369 with "disable-dso" or "disable-pic". 4370 4371 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4372 are also taken away from openssl/opensslconf.h, as they are 4373 irrelevant. 4374 4375 *Richard Levitte* 4376 4377 * Configuration change; if there is a known flag to compile 4378 position independent code, it will always be applied on the 4379 libcrypto and libssl object files, and never on the application 4380 object files. This means other libraries that use routines from 4381 libcrypto / libssl can be made into shared libraries regardless 4382 of how OpenSSL was configured. 4383 4384 If this isn't desirable, the configuration options "disable-pic" 4385 or "no-pic" can be used to disable the use of PIC. This will 4386 also disable building shared libraries and dynamic engines. 4387 4388 *Richard Levitte* 4389 4390 * Removed JPAKE code. It was experimental and has no wide use. 4391 4392 *Rich Salz* 4393 4394 * The INSTALL_PREFIX Makefile variable has been renamed to 4395 DESTDIR. That makes for less confusion on what this variable 4396 is for. Also, the configuration option --install_prefix is 4397 removed. 4398 4399 *Richard Levitte* 4400 4401 * Heartbeat for TLS has been removed and is disabled by default 4402 for DTLS; configure with enable-heartbeats. Code that uses the 4403 old #define's might need to be updated. 4404 4405 *Emilia Käsper, Rich Salz* 4406 4407 * Rename REF_CHECK to REF_DEBUG. 4408 4409 *Rich Salz* 4410 4411 * New "unified" build system 4412 4413 The "unified" build system is aimed to be a common system for all 4414 platforms we support. With it comes new support for VMS. 4415 4416 This system builds supports building in a different directory tree 4417 than the source tree. It produces one Makefile (for unix family 4418 or lookalikes), or one descrip.mms (for VMS). 4419 4420 The source of information to make the Makefile / descrip.mms is 4421 small files called 'build.info', holding the necessary 4422 information for each directory with source to compile, and a 4423 template in Configurations, like unix-Makefile.tmpl or 4424 descrip.mms.tmpl. 4425 4426 With this change, the library names were also renamed on Windows 4427 and on VMS. They now have names that are closer to the standard 4428 on Unix, and include the major version number, and in certain 4429 cases, the architecture they are built for. See "Notes on shared 4430 libraries" in INSTALL. 4431 4432 We rely heavily on the perl module Text::Template. 4433 4434 *Richard Levitte* 4435 4436 * Added support for auto-initialisation and de-initialisation of the library. 4437 OpenSSL no longer requires explicit init or deinit routines to be called, 4438 except in certain circumstances. See the OPENSSL_init_crypto() and 4439 OPENSSL_init_ssl() man pages for further information. 4440 4441 *Matt Caswell* 4442 4443 * The arguments to the DTLSv1_listen function have changed. Specifically the 4444 "peer" argument is now expected to be a BIO_ADDR object. 4445 4446 * Rewrite of BIO networking library. The BIO library lacked consistent 4447 support of IPv6, and adding it required some more extensive 4448 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4449 which hold all types of addresses and chains of address information. 4450 It also introduces a new API, with functions like BIO_socket, 4451 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4452 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4453 have been adapted accordingly. 4454 4455 *Richard Levitte* 4456 4457 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4458 the leading 0-byte. 4459 4460 *Emilia Käsper* 4461 4462 * CRIME protection: disable compression by default, even if OpenSSL is 4463 compiled with zlib enabled. Applications can still enable compression 4464 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4465 using the SSL_CONF library to configure compression. 4466 4467 *Emilia Käsper* 4468 4469 * The signature of the session callback configured with 4470 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4471 was explicitly marked as `const unsigned char*` instead of 4472 `unsigned char*`. 4473 4474 *Emilia Käsper* 4475 4476 * Always DPURIFY. Remove the use of uninitialized memory in the 4477 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4478 4479 *Emilia Käsper* 4480 4481 * Removed many obsolete configuration items, including 4482 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4483 MD2_CHAR, MD2_INT, MD2_LONG 4484 BF_PTR, BF_PTR2 4485 IDEA_SHORT, IDEA_LONG 4486 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4487 4488 *Rich Salz, with advice from Andy Polyakov* 4489 4490 * Many BN internals have been moved to an internal header file. 4491 4492 *Rich Salz with help from Andy Polyakov* 4493 4494 * Configuration and writing out the results from it has changed. 4495 Files such as Makefile include/openssl/opensslconf.h and are now 4496 produced through general templates, such as Makefile.in and 4497 crypto/opensslconf.h.in and some help from the perl module 4498 Text::Template. 4499 4500 Also, the center of configuration information is no longer 4501 Makefile. Instead, Configure produces a perl module in 4502 configdata.pm which holds most of the config data (in the hash 4503 table %config), the target data that comes from the target 4504 configuration in one of the `Configurations/*.conf` files (in 4505 %target). 4506 4507 *Richard Levitte* 4508 4509 * To clarify their intended purposes, the Configure options 4510 --prefix and --openssldir change their semantics, and become more 4511 straightforward and less interdependent. 4512 4513 --prefix shall be used exclusively to give the location INSTALLTOP 4514 where programs, scripts, libraries, include files and manuals are 4515 going to be installed. The default is now /usr/local. 4516 4517 --openssldir shall be used exclusively to give the default 4518 location OPENSSLDIR where certificates, private keys, CRLs are 4519 managed. This is also where the default openssl.cnf gets 4520 installed. 4521 If the directory given with this option is a relative path, the 4522 values of both the --prefix value and the --openssldir value will 4523 be combined to become OPENSSLDIR. 4524 The default for --openssldir is INSTALLTOP/ssl. 4525 4526 Anyone who uses --openssldir to specify where OpenSSL is to be 4527 installed MUST change to use --prefix instead. 4528 4529 *Richard Levitte* 4530 4531 * The GOST engine was out of date and therefore it has been removed. An up 4532 to date GOST engine is now being maintained in an external repository. 4533 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4534 support for GOST ciphersuites (these are only activated if a GOST engine 4535 is present). 4536 4537 *Matt Caswell* 4538 4539 * EGD is no longer supported by default; use enable-egd when 4540 configuring. 4541 4542 *Ben Kaduk and Rich Salz* 4543 4544 * The distribution now has Makefile.in files, which are used to 4545 create Makefile's when Configure is run. *Configure must be run 4546 before trying to build now.* 4547 4548 *Rich Salz* 4549 4550 * The return value for SSL_CIPHER_description() for error conditions 4551 has changed. 4552 4553 *Rich Salz* 4554 4555 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4556 4557 Obtaining and performing DNSSEC validation of TLSA records is 4558 the application's responsibility. The application provides 4559 the TLSA records of its choice to OpenSSL, and these are then 4560 used to authenticate the peer. 4561 4562 The TLSA records need not even come from DNS. They can, for 4563 example, be used to implement local end-entity certificate or 4564 trust-anchor "pinning", where the "pin" data takes the form 4565 of TLSA records, which can augment or replace verification 4566 based on the usual WebPKI public certification authorities. 4567 4568 *Viktor Dukhovni* 4569 4570 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4571 continues to support deprecated interfaces in default builds. 4572 However, applications are strongly advised to compile their 4573 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4574 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4575 or the 1.1.0 releases. 4576 4577 In environments in which all applications have been ported to 4578 not use any deprecated interfaces OpenSSL's Configure script 4579 should be used with the --api=1.1.0 option to entirely remove 4580 support for the deprecated features from the library and 4581 unconditionally disable them in the installed headers. 4582 Essentially the same effect can be achieved with the "no-deprecated" 4583 argument to Configure, except that this will always restrict 4584 the build to just the latest API, rather than a fixed API 4585 version. 4586 4587 As applications are ported to future revisions of the API, 4588 they should update their compile-time OPENSSL_API_COMPAT define 4589 accordingly, but in most cases should be able to continue to 4590 compile with later releases. 4591 4592 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4593 0x10000000L and 0x00908000L, respectively. However those 4594 versions did not support the OPENSSL_API_COMPAT feature, and 4595 so applications are not typically tested for explicit support 4596 of just the undeprecated features of either release. 4597 4598 *Viktor Dukhovni* 4599 4600 * Add support for setting the minimum and maximum supported protocol. 4601 It can bet set via the SSL_set_min_proto_version() and 4602 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4603 MaxProtocol. It's recommended to use the new APIs to disable 4604 protocols instead of disabling individual protocols using 4605 SSL_set_options() or SSL_CONF's Protocol. This change also 4606 removes support for disabling TLS 1.2 in the OpenSSL TLS 4607 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4608 4609 *Kurt Roeckx* 4610 4611 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4612 4613 *Andy Polyakov* 4614 4615 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4616 and integrates ECDSA and ECDH functionality into EC. Implementations can 4617 now redirect key generation and no longer need to convert to or from 4618 ECDSA_SIG format. 4619 4620 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4621 include the ec.h header file instead. 4622 4623 *Steve Henson* 4624 4625 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4626 ciphers who are no longer supported and drops support the ephemeral RSA key 4627 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4628 4629 *Kurt Roeckx* 4630 4631 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4632 opaque. For HMAC_CTX, the following constructors and destructors 4633 were added: 4634 4635 HMAC_CTX *HMAC_CTX_new(void); 4636 void HMAC_CTX_free(HMAC_CTX *ctx); 4637 4638 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4639 destroy such methods has been added. See EVP_MD_meth_new(3) and 4640 EVP_CIPHER_meth_new(3) for documentation. 4641 4642 Additional changes: 4643 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4644 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4645 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4646 an already created structure. 4647 2) For consistency with the majority of our object creators and 4648 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4649 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4650 for deprecated builds. 4651 4652 *Richard Levitte* 4653 4654 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4655 cryptographic operations to be performed asynchronously as long as an 4656 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4657 further details. Libssl has also had this capability integrated with the 4658 introduction of the new mode SSL_MODE_ASYNC and associated error 4659 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4660 pages. This work was developed in partnership with Intel Corp. 4661 4662 *Matt Caswell* 4663 4664 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4665 always enabled now. If you want to disable the support you should 4666 exclude it using the list of supported ciphers. This also means that the 4667 "-no_ecdhe" option has been removed from s_server. 4668 4669 *Kurt Roeckx* 4670 4671 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4672 SSL_{CTX_}set1_curves() which can set a list. 4673 4674 *Kurt Roeckx* 4675 4676 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4677 curve you want to support using SSL_{CTX_}set1_curves(). 4678 4679 *Kurt Roeckx* 4680 4681 * State machine rewrite. The state machine code has been significantly 4682 refactored in order to remove much duplication of code and solve issues 4683 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4684 further details). This change does have some associated API changes. 4685 Notably the SSL_state() function has been removed and replaced by 4686 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4687 SSL_set_state() has been removed altogether. The previous handshake states 4688 defined in ssl.h and ssl3.h have also been removed. 4689 4690 *Matt Caswell* 4691 4692 * All instances of the string "ssleay" in the public API were replaced 4693 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4694 Some error codes related to internal RSA_eay API's were renamed. 4695 4696 *Rich Salz* 4697 4698 * The demo files in crypto/threads were moved to demo/threads. 4699 4700 *Rich Salz* 4701 4702 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4703 sureware and ubsec. 4704 4705 *Matt Caswell, Rich Salz* 4706 4707 * New ASN.1 embed macro. 4708 4709 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4710 structure is not allocated: it is part of the parent. That is instead of 4711 4712 FOO *x; 4713 4714 it must be: 4715 4716 FOO x; 4717 4718 This reduces memory fragmentation and make it impossible to accidentally 4719 set a mandatory field to NULL. 4720 4721 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4722 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4723 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4724 SEQUENCE OF. 4725 4726 *Steve Henson* 4727 4728 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4729 4730 *Emilia Käsper* 4731 4732 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4733 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4734 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4735 DES and RC4 ciphersuites. 4736 4737 *Matt Caswell* 4738 4739 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4740 This changes the decoding behaviour for some invalid messages, 4741 though the change is mostly in the more lenient direction, and 4742 legacy behaviour is preserved as much as possible. 4743 4744 *Emilia Käsper* 4745 4746 * Fix no-stdio build. 4747 *David Woodhouse <David.Woodhouse@intel.com> and also* 4748 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4749 4750 * New testing framework 4751 The testing framework has been largely rewritten and is now using 4752 perl and the perl modules Test::Harness and an extended variant of 4753 Test::More called OpenSSL::Test to do its work. All test scripts in 4754 test/ have been rewritten into test recipes, and all direct calls to 4755 executables in test/Makefile have become individual recipes using the 4756 simplified testing OpenSSL::Test::Simple. 4757 4758 For documentation on our testing modules, do: 4759 4760 perldoc test/testlib/OpenSSL/Test/Simple.pm 4761 perldoc test/testlib/OpenSSL/Test.pm 4762 4763 *Richard Levitte* 4764 4765 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4766 are used; the latter aborts on memory leaks (usually checked on exit). 4767 Some undocumented "set malloc, etc., hooks" functions were removed 4768 and others were changed. All are now documented. 4769 4770 *Rich Salz* 4771 4772 * In DSA_generate_parameters_ex, if the provided seed is too short, 4773 return an error 4774 4775 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4776 4777 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4778 from RFC4279, RFC4785, RFC5487, RFC5489. 4779 4780 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4781 original RSA_PSK patch. 4782 4783 *Steve Henson* 4784 4785 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4786 era flag was never set throughout the codebase (only read). Also removed 4787 SSL3_FLAGS_POP_BUFFER which was only used if 4788 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4789 4790 *Matt Caswell* 4791 4792 * Changed the default name options in the "ca", "crl", "req" and "x509" 4793 to be "oneline" instead of "compat". 4794 4795 *Richard Levitte* 4796 4797 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4798 not aware of clients that still exhibit this bug, and the workaround 4799 hasn't been working properly for a while. 4800 4801 *Emilia Käsper* 4802 4803 * The return type of BIO_number_read() and BIO_number_written() as well as 4804 the corresponding num_read and num_write members in the BIO structure has 4805 changed from unsigned long to uint64_t. On platforms where an unsigned 4806 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4807 transferred. 4808 4809 *Matt Caswell* 4810 4811 * Given the pervasive nature of TLS extensions it is inadvisable to run 4812 OpenSSL without support for them. It also means that maintaining 4813 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4814 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4815 4816 *Matt Caswell* 4817 4818 * Removed support for the two export grade static DH ciphersuites 4819 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4820 were newly added (along with a number of other static DH ciphersuites) to 4821 1.0.2. However the two export ones have *never* worked since they were 4822 introduced. It seems strange in any case to be adding new export 4823 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4824 4825 *Matt Caswell* 4826 4827 * Version negotiation has been rewritten. In particular SSLv23_method(), 4828 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4829 and turned into macros which simply call the new preferred function names 4830 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4831 should use the new names instead. Also as part of this change the ssl23.h 4832 header file has been removed. 4833 4834 *Matt Caswell* 4835 4836 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4837 code and the associated standard is no longer considered fit-for-purpose. 4838 4839 *Matt Caswell* 4840 4841 * RT2547 was closed. When generating a private key, try to make the 4842 output file readable only by the owner. This behavior change might 4843 be noticeable when interacting with other software. 4844 4845 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4846 Added a test. 4847 4848 *Rich Salz* 4849 4850 * Added HTTP GET support to the ocsp command. 4851 4852 *Rich Salz* 4853 4854 * Changed default digest for the dgst and enc commands from MD5 to 4855 sha256 4856 4857 *Rich Salz* 4858 4859 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4860 4861 *Matt Caswell* 4862 4863 * Added support for TLS extended master secret from 4864 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4865 initial patch which was a great help during development. 4866 4867 *Steve Henson* 4868 4869 * All libssl internal structures have been removed from the public header 4870 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4871 now redundant). Users should not attempt to access internal structures 4872 directly. Instead they should use the provided API functions. 4873 4874 *Matt Caswell* 4875 4876 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4877 Access to deprecated functions can be re-enabled by running config with 4878 "enable-deprecated". In addition applications wishing to use deprecated 4879 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4880 will, by default, disable some transitive includes that previously existed 4881 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4882 4883 *Matt Caswell* 4884 4885 * Added support for OCB mode. OpenSSL has been granted a patent license 4886 compatible with the OpenSSL license for use of OCB. Details are available 4887 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4888 for OCB can be removed by calling config with no-ocb. 4889 4890 *Matt Caswell* 4891 4892 * SSLv2 support has been removed. It still supports receiving a SSLv2 4893 compatible client hello. 4894 4895 *Kurt Roeckx* 4896 4897 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4898 done while fixing the error code for the key-too-small case. 4899 4900 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4901 4902 * CA.sh has been removed; use CA.pl instead. 4903 4904 *Rich Salz* 4905 4906 * Removed old DES API. 4907 4908 *Rich Salz* 4909 4910 * Remove various unsupported platforms: 4911 Sony NEWS4 4912 BEOS and BEOS_R5 4913 NeXT 4914 SUNOS 4915 MPE/iX 4916 Sinix/ReliantUNIX RM400 4917 DGUX 4918 NCR 4919 Tandem 4920 Cray 4921 16-bit platforms such as WIN16 4922 4923 *Rich Salz* 4924 4925 * Clean up OPENSSL_NO_xxx #define's 4926 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4927 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4928 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4929 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4930 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4931 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4932 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4933 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4934 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4935 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4936 4937 *Rich Salz* 4938 4939 * Cleaned up dead code 4940 Remove all but one '#ifdef undef' which is to be looked at. 4941 4942 *Rich Salz* 4943 4944 * Clean up calling of xxx_free routines. 4945 Just like free(), fix most of the xxx_free routines to accept 4946 NULL. Remove the non-null checks from callers. Save much code. 4947 4948 *Rich Salz* 4949 4950 * Add secure heap for storage of private keys (when possible). 4951 Add BIO_s_secmem(), CBIGNUM, etc. 4952 Contributed by Akamai Technologies under our Corporate CLA. 4953 4954 *Rich Salz* 4955 4956 * Experimental support for a new, fast, unbiased prime candidate generator, 4957 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4958 4959 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4960 4961 * New output format NSS in the sess_id command line tool. This allows 4962 exporting the session id and the master key in NSS keylog format. 4963 4964 *Martin Kaiser <martin@kaiser.cx>* 4965 4966 * Harmonize version and its documentation. -f flag is used to display 4967 compilation flags. 4968 4969 *mancha <mancha1@zoho.com>* 4970 4971 * Fix eckey_priv_encode so it immediately returns an error upon a failure 4972 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 4973 4974 *mancha <mancha1@zoho.com>* 4975 4976 * Fix some double frees. These are not thought to be exploitable. 4977 4978 *mancha <mancha1@zoho.com>* 4979 4980 * A missing bounds check in the handling of the TLS heartbeat extension 4981 can be used to reveal up to 64k of memory to a connected client or 4982 server. 4983 4984 Thanks for Neel Mehta of Google Security for discovering this bug and to 4985 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4986 preparing the fix ([CVE-2014-0160]) 4987 4988 *Adam Langley, Bodo Moeller* 4989 4990 * Fix for the attack described in the paper "Recovering OpenSSL 4991 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4992 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4993 <http://eprint.iacr.org/2014/140> 4994 4995 Thanks to Yuval Yarom and Naomi Benger for discovering this 4996 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 4997 4998 *Yuval Yarom and Naomi Benger* 4999 5000 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 5001 this fixes a limitation in previous versions of OpenSSL. 5002 5003 *Steve Henson* 5004 5005 * Experimental encrypt-then-mac support. 5006 5007 Experimental support for encrypt then mac from 5008 draft-gutmann-tls-encrypt-then-mac-02.txt 5009 5010 To enable it set the appropriate extension number (0x42 for the test 5011 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 5012 5013 For non-compliant peers (i.e. just about everything) this should have no 5014 effect. 5015 5016 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 5017 5018 *Steve Henson* 5019 5020 * Add EVP support for key wrapping algorithms, to avoid problems with 5021 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 5022 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 5023 algorithms and include tests cases. 5024 5025 *Steve Henson* 5026 5027 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 5028 enveloped data. 5029 5030 *Steve Henson* 5031 5032 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 5033 MGF1 digest and OAEP label. 5034 5035 *Steve Henson* 5036 5037 * Make openssl verify return errors. 5038 5039 *Chris Palmer <palmer@google.com> and Ben Laurie* 5040 5041 * New function ASN1_TIME_diff to calculate the difference between two 5042 ASN1_TIME structures or one structure and the current time. 5043 5044 *Steve Henson* 5045 5046 * Update fips_test_suite to support multiple command line options. New 5047 test to induce all self test errors in sequence and check expected 5048 failures. 5049 5050 *Steve Henson* 5051 5052 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 5053 sign or verify all in one operation. 5054 5055 *Steve Henson* 5056 5057 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 5058 test programs and fips_test_suite. Includes functionality to parse 5059 the minimal script output of fipsalgest.pl directly. 5060 5061 *Steve Henson* 5062 5063 * Add authorisation parameter to FIPS_module_mode_set(). 5064 5065 *Steve Henson* 5066 5067 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 5068 5069 *Steve Henson* 5070 5071 * Use separate DRBG fields for internal and external flags. New function 5072 FIPS_drbg_health_check() to perform on demand health checking. Add 5073 generation tests to fips_test_suite with reduced health check interval to 5074 demonstrate periodic health checking. Add "nodh" option to 5075 fips_test_suite to skip very slow DH test. 5076 5077 *Steve Henson* 5078 5079 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 5080 based on NID. 5081 5082 *Steve Henson* 5083 5084 * More extensive health check for DRBG checking many more failure modes. 5085 New function FIPS_selftest_drbg_all() to handle every possible DRBG 5086 combination: call this in fips_test_suite. 5087 5088 *Steve Henson* 5089 5090 * Add support for canonical generation of DSA parameter 'g'. See 5091 FIPS 186-3 A.2.3. 5092 5093 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 5094 POST to handle HMAC cases. 5095 5096 *Steve Henson* 5097 5098 * Add functions FIPS_module_version() and FIPS_module_version_text() 5099 to return numerical and string versions of the FIPS module number. 5100 5101 *Steve Henson* 5102 5103 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 5104 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 5105 outside the validated module in the FIPS capable OpenSSL. 5106 5107 *Steve Henson* 5108 5109 * Minor change to DRBG entropy callback semantics. In some cases 5110 there is no multiple of the block length between min_len and 5111 max_len. Allow the callback to return more than max_len bytes 5112 of entropy but discard any extra: it is the callback's responsibility 5113 to ensure that the extra data discarded does not impact the 5114 requested amount of entropy. 5115 5116 *Steve Henson* 5117 5118 * Add PRNG security strength checks to RSA, DSA and ECDSA using 5119 information in FIPS186-3, SP800-57 and SP800-131A. 5120 5121 *Steve Henson* 5122 5123 * CCM support via EVP. Interface is very similar to GCM case except we 5124 must supply all data in one chunk (i.e. no update, final) and the 5125 message length must be supplied if AAD is used. Add algorithm test 5126 support. 5127 5128 *Steve Henson* 5129 5130 * Initial version of POST overhaul. Add POST callback to allow the status 5131 of POST to be monitored and/or failures induced. Modify fips_test_suite 5132 to use callback. Always run all selftests even if one fails. 5133 5134 *Steve Henson* 5135 5136 * XTS support including algorithm test driver in the fips_gcmtest program. 5137 Note: this does increase the maximum key length from 32 to 64 bytes but 5138 there should be no binary compatibility issues as existing applications 5139 will never use XTS mode. 5140 5141 *Steve Henson* 5142 5143 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 5144 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 5145 performs algorithm blocking for unapproved PRNG types. Also do not 5146 set PRNG type in FIPS_mode_set(): leave this to the application. 5147 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 5148 the standard OpenSSL PRNG: set additional data to a date time vector. 5149 5150 *Steve Henson* 5151 5152 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 5153 This shouldn't present any incompatibility problems because applications 5154 shouldn't be using these directly and any that are will need to rethink 5155 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 5156 5157 *Steve Henson* 5158 5159 * Extensive self tests and health checking required by SP800-90 DRBG. 5160 Remove strength parameter from FIPS_drbg_instantiate and always 5161 instantiate at maximum supported strength. 5162 5163 *Steve Henson* 5164 5165 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 5166 5167 *Steve Henson* 5168 5169 * New algorithm test program fips_dhvs to handle DH primitives only testing. 5170 5171 *Steve Henson* 5172 5173 * New function DH_compute_key_padded() to compute a DH key and pad with 5174 leading zeroes if needed: this complies with SP800-56A et al. 5175 5176 *Steve Henson* 5177 5178 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 5179 anything, incomplete, subject to change and largely untested at present. 5180 5181 *Steve Henson* 5182 5183 * Modify fipscanisteronly build option to only build the necessary object 5184 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 5185 5186 *Steve Henson* 5187 5188 * Add experimental option FIPSSYMS to give all symbols in 5189 fipscanister.o and FIPS or fips prefix. This will avoid 5190 conflicts with future versions of OpenSSL. Add perl script 5191 util/fipsas.pl to preprocess assembly language source files 5192 and rename any affected symbols. 5193 5194 *Steve Henson* 5195 5196 * Add selftest checks and algorithm block of non-fips algorithms in 5197 FIPS mode. Remove DES2 from selftests. 5198 5199 *Steve Henson* 5200 5201 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 5202 return internal method without any ENGINE dependencies. Add new 5203 tiny fips sign and verify functions. 5204 5205 *Steve Henson* 5206 5207 * New build option no-ec2m to disable characteristic 2 code. 5208 5209 *Steve Henson* 5210 5211 * New build option "fipscanisteronly". This only builds fipscanister.o 5212 and (currently) associated fips utilities. Uses the file Makefile.fips 5213 instead of Makefile.org as the prototype. 5214 5215 *Steve Henson* 5216 5217 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 5218 Update fips_gcmtest to use IV generator. 5219 5220 *Steve Henson* 5221 5222 * Initial, experimental EVP support for AES-GCM. AAD can be input by 5223 setting output buffer to NULL. The `*Final` function must be 5224 called although it will not retrieve any additional data. The tag 5225 can be set or retrieved with a ctrl. The IV length is by default 12 5226 bytes (96 bits) but can be set to an alternative value. If the IV 5227 length exceeds the maximum IV length (currently 16 bytes) it cannot be 5228 set before the key. 5229 5230 *Steve Henson* 5231 5232 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 5233 underlying do_cipher function handles all cipher semantics itself 5234 including padding and finalisation. This is useful if (for example) 5235 an ENGINE cipher handles block padding itself. The behaviour of 5236 do_cipher is subtly changed if this flag is set: the return value 5237 is the number of characters written to the output buffer (zero is 5238 no longer an error code) or a negative error code. Also if the 5239 input buffer is NULL and length 0 finalisation should be performed. 5240 5241 *Steve Henson* 5242 5243 * If a candidate issuer certificate is already part of the constructed 5244 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 5245 5246 *Steve Henson* 5247 5248 * Improve forward-security support: add functions 5249 5250 void SSL_CTX_set_not_resumable_session_callback( 5251 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 5252 void SSL_set_not_resumable_session_callback( 5253 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 5254 5255 for use by SSL/TLS servers; the callback function will be called whenever a 5256 new session is created, and gets to decide whether the session may be 5257 cached to make it resumable (return 0) or not (return 1). (As by the 5258 SSL/TLS protocol specifications, the session_id sent by the server will be 5259 empty to indicate that the session is not resumable; also, the server will 5260 not generate RFC 4507 (RFC 5077) session tickets.) 5261 5262 A simple reasonable callback implementation is to return is_forward_secure. 5263 This parameter will be set to 1 or 0 depending on the ciphersuite selected 5264 by the SSL/TLS server library, indicating whether it can provide forward 5265 security. 5266 5267 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 5268 5269 * New -verify_name option in command line utilities to set verification 5270 parameters by name. 5271 5272 *Steve Henson* 5273 5274 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 5275 Add CMAC pkey methods. 5276 5277 *Steve Henson* 5278 5279 * Experimental renegotiation in s_server -www mode. If the client 5280 browses /reneg connection is renegotiated. If /renegcert it is 5281 renegotiated requesting a certificate. 5282 5283 *Steve Henson* 5284 5285 * Add an "external" session cache for debugging purposes to s_server. This 5286 should help trace issues which normally are only apparent in deployed 5287 multi-process servers. 5288 5289 *Steve Henson* 5290 5291 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 5292 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 5293 BIO_set_cipher() and some obscure PEM functions were changed so they 5294 can now return an error. The RAND changes required a change to the 5295 RAND_METHOD structure. 5296 5297 *Steve Henson* 5298 5299 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 5300 a gcc attribute to warn if the result of a function is ignored. This 5301 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 5302 whose return value is often ignored. 5303 5304 *Steve Henson* 5305 5306 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 5307 These allow SCTs (signed certificate timestamps) to be requested and 5308 validated when establishing a connection. 5309 5310 *Rob Percival <robpercival@google.com>* 5311 5312OpenSSL 1.0.2 5313------------- 5314 5315### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 5316 5317 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 5318 used even when parsing explicit parameters, when loading a encoded key 5319 or calling `EC_GROUP_new_from_ecpkparameters()`/ 5320 `EC_GROUP_new_from_ecparameters()`. 5321 This prevents bypass of security hardening and performance gains, 5322 especially for curves with specialized EC_METHODs. 5323 By default, if a key encoded with explicit parameters is loaded and later 5324 encoded, the output is still encoded with explicit parameters, even if 5325 internally a "named" EC_GROUP is used for computation. 5326 5327 *Nicola Tuveri* 5328 5329 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 5330 this change, EC_GROUP_set_generator would accept order and/or cofactor as 5331 NULL. After this change, only the cofactor parameter can be NULL. It also 5332 does some minimal sanity checks on the passed order. 5333 ([CVE-2019-1547]) 5334 5335 *Billy Bob Brumley* 5336 5337 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 5338 An attack is simple, if the first CMS_recipientInfo is valid but the 5339 second CMS_recipientInfo is chosen ciphertext. If the second 5340 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 5341 encryption key will be replaced by garbage, and the message cannot be 5342 decoded, but if the RSA decryption fails, the correct encryption key is 5343 used and the recipient will not notice the attack. 5344 As a work around for this potential attack the length of the decrypted 5345 key must be equal to the cipher default key length, in case the 5346 certifiate is not given and all recipientInfo are tried out. 5347 The old behaviour can be re-enabled in the CMS code by setting the 5348 CMS_DEBUG_DECRYPT flag. 5349 ([CVE-2019-1563]) 5350 5351 *Bernd Edlinger* 5352 5353 * Document issue with installation paths in diverse Windows builds 5354 5355 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5356 binaries and run-time config file. 5357 ([CVE-2019-1552]) 5358 5359 *Richard Levitte* 5360 5361### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5362 5363 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5364 This changes the size when using the `genpkey` command when no size is given. 5365 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5366 generation commands to use 2048 bits by default. 5367 5368 *Kurt Roeckx* 5369 5370 * Add FIPS support for Android Arm 64-bit 5371 5372 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5373 Module in Version 2.0.10. For some reason, the corresponding target 5374 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5375 built with FIPS support on Android Arm 64-bit. This omission has been 5376 fixed. 5377 5378 *Matthias St. Pierre* 5379 5380### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5381 5382 * 0-byte record padding oracle 5383 5384 If an application encounters a fatal protocol error and then calls 5385 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5386 then OpenSSL can respond differently to the calling application if a 0 byte 5387 record is received with invalid padding compared to if a 0 byte record is 5388 received with an invalid MAC. If the application then behaves differently 5389 based on that in a way that is detectable to the remote peer, then this 5390 amounts to a padding oracle that could be used to decrypt data. 5391 5392 In order for this to be exploitable "non-stitched" ciphersuites must be in 5393 use. Stitched ciphersuites are optimised implementations of certain 5394 commonly used ciphersuites. Also the application must call SSL_shutdown() 5395 twice even if a protocol error has occurred (applications should not do 5396 this but some do anyway). 5397 5398 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5399 Aviram, with additional investigation by Steven Collison and Andrew 5400 Hourselt. It was reported to OpenSSL on 10th December 2018. 5401 ([CVE-2019-1559]) 5402 5403 *Matt Caswell* 5404 5405 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5406 5407 *Richard Levitte* 5408 5409### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5410 5411 * Microarchitecture timing vulnerability in ECC scalar multiplication 5412 5413 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5414 shown to be vulnerable to a microarchitecture timing side channel attack. 5415 An attacker with sufficient access to mount local timing attacks during 5416 ECDSA signature generation could recover the private key. 5417 5418 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5419 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5420 Nicola Tuveri. 5421 ([CVE-2018-5407]) 5422 5423 *Billy Brumley* 5424 5425 * Timing vulnerability in DSA signature generation 5426 5427 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5428 timing side channel attack. An attacker could use variations in the signing 5429 algorithm to recover the private key. 5430 5431 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5432 ([CVE-2018-0734]) 5433 5434 *Paul Dale* 5435 5436 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5437 Module, accidentally introduced while backporting security fixes from the 5438 development branch and hindering the use of ECC in FIPS mode. 5439 5440 *Nicola Tuveri* 5441 5442### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5443 5444 * Client DoS due to large DH parameter 5445 5446 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5447 malicious server can send a very large prime value to the client. This will 5448 cause the client to spend an unreasonably long period of time generating a 5449 key for this prime resulting in a hang until the client has finished. This 5450 could be exploited in a Denial Of Service attack. 5451 5452 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5453 ([CVE-2018-0732]) 5454 5455 *Guido Vranken* 5456 5457 * Cache timing vulnerability in RSA Key Generation 5458 5459 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5460 a cache timing side channel attack. An attacker with sufficient access to 5461 mount cache timing attacks during the RSA key generation process could 5462 recover the private key. 5463 5464 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5465 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5466 ([CVE-2018-0737]) 5467 5468 *Billy Brumley* 5469 5470 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5471 parameter is no longer accepted, as it leads to a corrupt table. NULL 5472 pem_str is reserved for alias entries only. 5473 5474 *Richard Levitte* 5475 5476 * Revert blinding in ECDSA sign and instead make problematic addition 5477 length-invariant. Switch even to fixed-length Montgomery multiplication. 5478 5479 *Andy Polyakov* 5480 5481 * Change generating and checking of primes so that the error rate of not 5482 being prime depends on the intended use based on the size of the input. 5483 For larger primes this will result in more rounds of Miller-Rabin. 5484 The maximal error rate for primes with more than 1080 bits is lowered 5485 to 2^-128. 5486 5487 *Kurt Roeckx, Annie Yousar* 5488 5489 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5490 5491 *Kurt Roeckx* 5492 5493 * Add blinding to ECDSA and DSA signatures to protect against side channel 5494 attacks discovered by Keegan Ryan (NCC Group). 5495 5496 *Matt Caswell* 5497 5498 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5499 now allow empty (zero character) pass phrases. 5500 5501 *Richard Levitte* 5502 5503 * Certificate time validation (X509_cmp_time) enforces stricter 5504 compliance with RFC 5280. Fractional seconds and timezone offsets 5505 are no longer allowed. 5506 5507 *Emilia Käsper* 5508 5509### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5510 5511 * Constructed ASN.1 types with a recursive definition could exceed the stack 5512 5513 Constructed ASN.1 types with a recursive definition (such as can be found 5514 in PKCS7) could eventually exceed the stack given malicious input with 5515 excessive recursion. This could result in a Denial Of Service attack. There 5516 are no such structures used within SSL/TLS that come from untrusted sources 5517 so this is considered safe. 5518 5519 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5520 project. 5521 ([CVE-2018-0739]) 5522 5523 *Matt Caswell* 5524 5525### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5526 5527 * Read/write after SSL object in error state 5528 5529 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5530 mechanism. The intent was that if a fatal error occurred during a handshake 5531 then OpenSSL would move into the error state and would immediately fail if 5532 you attempted to continue the handshake. This works as designed for the 5533 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5534 SSL_connect()), however due to a bug it does not work correctly if 5535 SSL_read() or SSL_write() is called directly. In that scenario, if the 5536 handshake fails then a fatal error will be returned in the initial function 5537 call. If SSL_read()/SSL_write() is subsequently called by the application 5538 for the same SSL object then it will succeed and the data is passed without 5539 being decrypted/encrypted directly from the SSL/TLS record layer. 5540 5541 In order to exploit this issue an application bug would have to be present 5542 that resulted in a call to SSL_read()/SSL_write() being issued after having 5543 already received a fatal error. 5544 5545 This issue was reported to OpenSSL by David Benjamin (Google). 5546 ([CVE-2017-3737]) 5547 5548 *Matt Caswell* 5549 5550 * rsaz_1024_mul_avx2 overflow bug on x86_64 5551 5552 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5553 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5554 Analysis suggests that attacks against RSA and DSA as a result of this 5555 defect would be very difficult to perform and are not believed likely. 5556 Attacks against DH1024 are considered just feasible, because most of the 5557 work necessary to deduce information about a private key may be performed 5558 offline. The amount of resources required for such an attack would be 5559 significant. However, for an attack on TLS to be meaningful, the server 5560 would have to share the DH1024 private key among multiple clients, which is 5561 no longer an option since CVE-2016-0701. 5562 5563 This only affects processors that support the AVX2 but not ADX extensions 5564 like Intel Haswell (4th generation). 5565 5566 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5567 was originally found via the OSS-Fuzz project. 5568 ([CVE-2017-3738]) 5569 5570 *Andy Polyakov* 5571 5572### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5573 5574 * bn_sqrx8x_internal carry bug on x86_64 5575 5576 There is a carry propagating bug in the x86_64 Montgomery squaring 5577 procedure. No EC algorithms are affected. Analysis suggests that attacks 5578 against RSA and DSA as a result of this defect would be very difficult to 5579 perform and are not believed likely. Attacks against DH are considered just 5580 feasible (although very difficult) because most of the work necessary to 5581 deduce information about a private key may be performed offline. The amount 5582 of resources required for such an attack would be very significant and 5583 likely only accessible to a limited number of attackers. An attacker would 5584 additionally need online access to an unpatched system using the target 5585 private key in a scenario with persistent DH parameters and a private 5586 key that is shared between multiple clients. 5587 5588 This only affects processors that support the BMI1, BMI2 and ADX extensions 5589 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5590 5591 This issue was reported to OpenSSL by the OSS-Fuzz project. 5592 ([CVE-2017-3736]) 5593 5594 *Andy Polyakov* 5595 5596 * Malformed X.509 IPAddressFamily could cause OOB read 5597 5598 If an X.509 certificate has a malformed IPAddressFamily extension, 5599 OpenSSL could do a one-byte buffer overread. The most likely result 5600 would be an erroneous display of the certificate in text format. 5601 5602 This issue was reported to OpenSSL by the OSS-Fuzz project. 5603 5604 *Rich Salz* 5605 5606### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5607 5608 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5609 platform rather than 'mingw'. 5610 5611 *Richard Levitte* 5612 5613### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5614 5615 * Truncated packet could crash via OOB read 5616 5617 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5618 cipher is being used, then a truncated packet can cause that host to 5619 perform an out-of-bounds read, usually resulting in a crash. 5620 5621 This issue was reported to OpenSSL by Robert Święcki of Google. 5622 ([CVE-2017-3731]) 5623 5624 *Andy Polyakov* 5625 5626 * BN_mod_exp may produce incorrect results on x86_64 5627 5628 There is a carry propagating bug in the x86_64 Montgomery squaring 5629 procedure. No EC algorithms are affected. Analysis suggests that attacks 5630 against RSA and DSA as a result of this defect would be very difficult to 5631 perform and are not believed likely. Attacks against DH are considered just 5632 feasible (although very difficult) because most of the work necessary to 5633 deduce information about a private key may be performed offline. The amount 5634 of resources required for such an attack would be very significant and 5635 likely only accessible to a limited number of attackers. An attacker would 5636 additionally need online access to an unpatched system using the target 5637 private key in a scenario with persistent DH parameters and a private 5638 key that is shared between multiple clients. For example this can occur by 5639 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5640 similar to CVE-2015-3193 but must be treated as a separate problem. 5641 5642 This issue was reported to OpenSSL by the OSS-Fuzz project. 5643 ([CVE-2017-3732]) 5644 5645 *Andy Polyakov* 5646 5647 * Montgomery multiplication may produce incorrect results 5648 5649 There is a carry propagating bug in the Broadwell-specific Montgomery 5650 multiplication procedure that handles input lengths divisible by, but 5651 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5652 and DH private keys are impossible. This is because the subroutine in 5653 question is not used in operations with the private key itself and an input 5654 of the attacker's direct choice. Otherwise the bug can manifest itself as 5655 transient authentication and key negotiation failures or reproducible 5656 erroneous outcome of public-key operations with specially crafted input. 5657 Among EC algorithms only Brainpool P-512 curves are affected and one 5658 presumably can attack ECDH key negotiation. Impact was not analyzed in 5659 detail, because pre-requisites for attack are considered unlikely. Namely 5660 multiple clients have to choose the curve in question and the server has to 5661 share the private key among them, neither of which is default behaviour. 5662 Even then only clients that chose the curve will be affected. 5663 5664 This issue was publicly reported as transient failures and was not 5665 initially recognized as a security issue. Thanks to Richard Morgan for 5666 providing reproducible case. 5667 ([CVE-2016-7055]) 5668 5669 *Andy Polyakov* 5670 5671 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5672 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5673 prevent issues where no progress is being made and the peer continually 5674 sends unrecognised record types, using up resources processing them. 5675 5676 *Matt Caswell* 5677 5678### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5679 5680 * Missing CRL sanity check 5681 5682 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5683 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5684 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5685 5686 This issue only affects the OpenSSL 1.0.2i 5687 ([CVE-2016-7052]) 5688 5689 *Matt Caswell* 5690 5691### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5692 5693 * OCSP Status Request extension unbounded memory growth 5694 5695 A malicious client can send an excessively large OCSP Status Request 5696 extension. If that client continually requests renegotiation, sending a 5697 large OCSP Status Request extension each time, then there will be unbounded 5698 memory growth on the server. This will eventually lead to a Denial Of 5699 Service attack through memory exhaustion. Servers with a default 5700 configuration are vulnerable even if they do not support OCSP. Builds using 5701 the "no-ocsp" build time option are not affected. 5702 5703 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5704 ([CVE-2016-6304]) 5705 5706 *Matt Caswell* 5707 5708 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5709 HIGH to MEDIUM. 5710 5711 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5712 Leurent (INRIA) 5713 ([CVE-2016-2183]) 5714 5715 *Rich Salz* 5716 5717 * OOB write in MDC2_Update() 5718 5719 An overflow can occur in MDC2_Update() either if called directly or 5720 through the EVP_DigestUpdate() function using MDC2. If an attacker 5721 is able to supply very large amounts of input data after a previous 5722 call to EVP_EncryptUpdate() with a partial block then a length check 5723 can overflow resulting in a heap corruption. 5724 5725 The amount of data needed is comparable to SIZE_MAX which is impractical 5726 on most platforms. 5727 5728 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5729 ([CVE-2016-6303]) 5730 5731 *Stephen Henson* 5732 5733 * Malformed SHA512 ticket DoS 5734 5735 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5736 DoS attack where a malformed ticket will result in an OOB read which will 5737 ultimately crash. 5738 5739 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5740 a custom server callback and ticket lookup mechanism. 5741 5742 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5743 ([CVE-2016-6302]) 5744 5745 *Stephen Henson* 5746 5747 * OOB write in BN_bn2dec() 5748 5749 The function BN_bn2dec() does not check the return value of BN_div_word(). 5750 This can cause an OOB write if an application uses this function with an 5751 overly large BIGNUM. This could be a problem if an overly large certificate 5752 or CRL is printed out from an untrusted source. TLS is not affected because 5753 record limits will reject an oversized certificate before it is parsed. 5754 5755 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5756 ([CVE-2016-2182]) 5757 5758 *Stephen Henson* 5759 5760 * OOB read in TS_OBJ_print_bio() 5761 5762 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5763 the total length the OID text representation would use and not the amount 5764 of data written. This will result in OOB reads when large OIDs are 5765 presented. 5766 5767 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5768 ([CVE-2016-2180]) 5769 5770 *Stephen Henson* 5771 5772 * Pointer arithmetic undefined behaviour 5773 5774 Avoid some undefined pointer arithmetic 5775 5776 A common idiom in the codebase is to check limits in the following manner: 5777 "p + len > limit" 5778 5779 Where "p" points to some malloc'd data of SIZE bytes and 5780 limit == p + SIZE 5781 5782 "len" here could be from some externally supplied data (e.g. from a TLS 5783 message). 5784 5785 The rules of C pointer arithmetic are such that "p + len" is only well 5786 defined where len <= SIZE. Therefore the above idiom is actually 5787 undefined behaviour. 5788 5789 For example this could cause problems if some malloc implementation 5790 provides an address for "p" such that "p + len" actually overflows for 5791 values of len that are too big and therefore p + len < limit. 5792 5793 This issue was reported to OpenSSL by Guido Vranken 5794 ([CVE-2016-2177]) 5795 5796 *Matt Caswell* 5797 5798 * Constant time flag not preserved in DSA signing 5799 5800 Operations in the DSA signing algorithm should run in constant time in 5801 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5802 implementation means that a non-constant time codepath is followed for 5803 certain operations. This has been demonstrated through a cache-timing 5804 attack to be sufficient for an attacker to recover the private DSA key. 5805 5806 This issue was reported by César Pereida (Aalto University), Billy Brumley 5807 (Tampere University of Technology), and Yuval Yarom (The University of 5808 Adelaide and NICTA). 5809 ([CVE-2016-2178]) 5810 5811 *César Pereida* 5812 5813 * DTLS buffered message DoS 5814 5815 In a DTLS connection where handshake messages are delivered out-of-order 5816 those messages that OpenSSL is not yet ready to process will be buffered 5817 for later use. Under certain circumstances, a flaw in the logic means that 5818 those messages do not get removed from the buffer even though the handshake 5819 has been completed. An attacker could force up to approx. 15 messages to 5820 remain in the buffer when they are no longer required. These messages will 5821 be cleared when the DTLS connection is closed. The default maximum size for 5822 a message is 100k. Therefore the attacker could force an additional 1500k 5823 to be consumed per connection. By opening many simulataneous connections an 5824 attacker could cause a DoS attack through memory exhaustion. 5825 5826 This issue was reported to OpenSSL by Quan Luo. 5827 ([CVE-2016-2179]) 5828 5829 *Matt Caswell* 5830 5831 * DTLS replay protection DoS 5832 5833 A flaw in the DTLS replay attack protection mechanism means that records 5834 that arrive for future epochs update the replay protection "window" before 5835 the MAC for the record has been validated. This could be exploited by an 5836 attacker by sending a record for the next epoch (which does not have to 5837 decrypt or have a valid MAC), with a very large sequence number. This means 5838 that all subsequent legitimate packets are dropped causing a denial of 5839 service for a specific DTLS connection. 5840 5841 This issue was reported to OpenSSL by the OCAP audit team. 5842 ([CVE-2016-2181]) 5843 5844 *Matt Caswell* 5845 5846 * Certificate message OOB reads 5847 5848 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5849 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5850 theoretical DoS risk but this has not been observed in practice on common 5851 platforms. 5852 5853 The messages affected are client certificate, client certificate request 5854 and server certificate. As a result the attack can only be performed 5855 against a client or a server which enables client authentication. 5856 5857 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5858 ([CVE-2016-6306]) 5859 5860 *Stephen Henson* 5861 5862### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5863 5864 * Prevent padding oracle in AES-NI CBC MAC check 5865 5866 A MITM attacker can use a padding oracle attack to decrypt traffic 5867 when the connection uses an AES CBC cipher and the server support 5868 AES-NI. 5869 5870 This issue was introduced as part of the fix for Lucky 13 padding 5871 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5872 constant time by making sure that always the same bytes are read and 5873 compared against either the MAC or padding bytes. But it no longer 5874 checked that there was enough data to have both the MAC and padding 5875 bytes. 5876 5877 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5878 5879 *Kurt Roeckx* 5880 5881 * Fix EVP_EncodeUpdate overflow 5882 5883 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5884 Base64 encoding of binary data. If an attacker is able to supply very large 5885 amounts of input data then a length check can overflow resulting in a heap 5886 corruption. 5887 5888 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5889 the `PEM_write_bio*` family of functions. These are mainly used within the 5890 OpenSSL command line applications, so any application which processes data 5891 from an untrusted source and outputs it as a PEM file should be considered 5892 vulnerable to this issue. User applications that call these APIs directly 5893 with large amounts of untrusted data may also be vulnerable. 5894 5895 This issue was reported by Guido Vranken. 5896 ([CVE-2016-2105]) 5897 5898 *Matt Caswell* 5899 5900 * Fix EVP_EncryptUpdate overflow 5901 5902 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5903 is able to supply very large amounts of input data after a previous call to 5904 EVP_EncryptUpdate() with a partial block then a length check can overflow 5905 resulting in a heap corruption. Following an analysis of all OpenSSL 5906 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5907 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5908 the first called function after an EVP_EncryptInit(), and therefore that 5909 specific call must be safe. The second form is where the length passed to 5910 EVP_EncryptUpdate() can be seen from the code to be some small value and 5911 therefore there is no possibility of an overflow. Since all instances are 5912 one of these two forms, it is believed that there can be no overflows in 5913 internal code due to this problem. It should be noted that 5914 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5915 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5916 of these calls have also been analysed too and it is believed there are no 5917 instances in internal usage where an overflow could occur. 5918 5919 This issue was reported by Guido Vranken. 5920 ([CVE-2016-2106]) 5921 5922 *Matt Caswell* 5923 5924 * Prevent ASN.1 BIO excessive memory allocation 5925 5926 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5927 a short invalid encoding can cause allocation of large amounts of memory 5928 potentially consuming excessive resources or exhausting memory. 5929 5930 Any application parsing untrusted data through d2i BIO functions is 5931 affected. The memory based functions such as d2i_X509() are *not* affected. 5932 Since the memory based functions are used by the TLS library, TLS 5933 applications are not affected. 5934 5935 This issue was reported by Brian Carpenter. 5936 ([CVE-2016-2109]) 5937 5938 *Stephen Henson* 5939 5940 * EBCDIC overread 5941 5942 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5943 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5944 in arbitrary stack data being returned in the buffer. 5945 5946 This issue was reported by Guido Vranken. 5947 ([CVE-2016-2176]) 5948 5949 *Matt Caswell* 5950 5951 * Modify behavior of ALPN to invoke callback after SNI/servername 5952 callback, such that updates to the SSL_CTX affect ALPN. 5953 5954 *Todd Short* 5955 5956 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5957 default. 5958 5959 *Kurt Roeckx* 5960 5961 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5962 methods are enabled and ssl2 is disabled the methods return NULL. 5963 5964 *Kurt Roeckx* 5965 5966### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5967 5968* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 5969 Builds that are not configured with "enable-weak-ssl-ciphers" will not 5970 provide any "EXPORT" or "LOW" strength ciphers. 5971 5972 *Viktor Dukhovni* 5973 5974* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 5975 is by default disabled at build-time. Builds that are not configured with 5976 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 5977 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 5978 will need to explicitly call either of: 5979 5980 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 5981 or 5982 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 5983 5984 as appropriate. Even if either of those is used, or the application 5985 explicitly uses the version-specific SSLv2_method() or its client and 5986 server variants, SSLv2 ciphers vulnerable to exhaustive search key 5987 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 5988 ciphers, and SSLv2 56-bit DES are no longer available. 5989 ([CVE-2016-0800]) 5990 5991 *Viktor Dukhovni* 5992 5993 * Fix a double-free in DSA code 5994 5995 A double free bug was discovered when OpenSSL parses malformed DSA private 5996 keys and could lead to a DoS attack or memory corruption for applications 5997 that receive DSA private keys from untrusted sources. This scenario is 5998 considered rare. 5999 6000 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 6001 libFuzzer. 6002 ([CVE-2016-0705]) 6003 6004 *Stephen Henson* 6005 6006 * Disable SRP fake user seed to address a server memory leak. 6007 6008 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 6009 6010 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 6011 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 6012 was changed to ignore the "fake user" SRP seed, even if the seed 6013 is configured. 6014 6015 Users should use SRP_VBASE_get1_by_user instead. Note that in 6016 SRP_VBASE_get1_by_user, caller must free the returned value. Note 6017 also that even though configuring the SRP seed attempts to hide 6018 invalid usernames by continuing the handshake with fake 6019 credentials, this behaviour is not constant time and no strong 6020 guarantees are made that the handshake is indistinguishable from 6021 that of a valid user. 6022 ([CVE-2016-0798]) 6023 6024 *Emilia Käsper* 6025 6026 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 6027 6028 In the BN_hex2bn function the number of hex digits is calculated using an 6029 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 6030 large values of `i` this can result in `bn_expand` not allocating any 6031 memory because `i * 4` is negative. This can leave the internal BIGNUM data 6032 field as NULL leading to a subsequent NULL ptr deref. For very large values 6033 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 6034 In this case memory is allocated to the internal BIGNUM data field, but it 6035 is insufficiently sized leading to heap corruption. A similar issue exists 6036 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 6037 is ever called by user applications with very large untrusted hex/dec data. 6038 This is anticipated to be a rare occurrence. 6039 6040 All OpenSSL internal usage of these functions use data that is not expected 6041 to be untrusted, e.g. config file data or application command line 6042 arguments. If user developed applications generate config file data based 6043 on untrusted data then it is possible that this could also lead to security 6044 consequences. This is also anticipated to be rare. 6045 6046 This issue was reported to OpenSSL by Guido Vranken. 6047 ([CVE-2016-0797]) 6048 6049 *Matt Caswell* 6050 6051 * Fix memory issues in `BIO_*printf` functions 6052 6053 The internal `fmtstr` function used in processing a "%s" format string in 6054 the `BIO_*printf` functions could overflow while calculating the length of a 6055 string and cause an OOB read when printing very long strings. 6056 6057 Additionally the internal `doapr_outch` function can attempt to write to an 6058 OOB memory location (at an offset from the NULL pointer) in the event of a 6059 memory allocation failure. In 1.0.2 and below this could be caused where 6060 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 6061 could be in processing a very long "%s" format string. Memory leaks can 6062 also occur. 6063 6064 The first issue may mask the second issue dependent on compiler behaviour. 6065 These problems could enable attacks where large amounts of untrusted data 6066 is passed to the `BIO_*printf` functions. If applications use these functions 6067 in this way then they could be vulnerable. OpenSSL itself uses these 6068 functions when printing out human-readable dumps of ASN.1 data. Therefore 6069 applications that print this data could be vulnerable if the data is from 6070 untrusted sources. OpenSSL command line applications could also be 6071 vulnerable where they print out ASN.1 data, or if untrusted data is passed 6072 as command line arguments. 6073 6074 Libssl is not considered directly vulnerable. Additionally certificates etc 6075 received via remote connections via libssl are also unlikely to be able to 6076 trigger these issues because of message size limits enforced within libssl. 6077 6078 This issue was reported to OpenSSL Guido Vranken. 6079 ([CVE-2016-0799]) 6080 6081 *Matt Caswell* 6082 6083 * Side channel attack on modular exponentiation 6084 6085 A side-channel attack was found which makes use of cache-bank conflicts on 6086 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 6087 of RSA keys. The ability to exploit this issue is limited as it relies on 6088 an attacker who has control of code in a thread running on the same 6089 hyper-threaded core as the victim thread which is performing decryptions. 6090 6091 This issue was reported to OpenSSL by Yuval Yarom, The University of 6092 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 6093 Nadia Heninger, University of Pennsylvania with more information at 6094 <http://cachebleed.info>. 6095 ([CVE-2016-0702]) 6096 6097 *Andy Polyakov* 6098 6099 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 6100 if no keysize is specified with default_bits. This fixes an 6101 omission in an earlier change that changed all RSA/DSA key generation 6102 commands to use 2048 bits by default. 6103 6104 *Emilia Käsper* 6105 6106### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 6107 6108 * DH small subgroups 6109 6110 Historically OpenSSL only ever generated DH parameters based on "safe" 6111 primes. More recently (in version 1.0.2) support was provided for 6112 generating X9.42 style parameter files such as those required for RFC 5114 6113 support. The primes used in such files may not be "safe". Where an 6114 application is using DH configured with parameters based on primes that are 6115 not "safe" then an attacker could use this fact to find a peer's private 6116 DH exponent. This attack requires that the attacker complete multiple 6117 handshakes in which the peer uses the same private DH exponent. For example 6118 this could be used to discover a TLS server's private DH exponent if it's 6119 reusing the private DH exponent or it's using a static DH ciphersuite. 6120 6121 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 6122 TLS. It is not on by default. If the option is not set then the server 6123 reuses the same private DH exponent for the life of the server process and 6124 would be vulnerable to this attack. It is believed that many popular 6125 applications do set this option and would therefore not be at risk. 6126 6127 The fix for this issue adds an additional check where a "q" parameter is 6128 available (as is the case in X9.42 based parameters). This detects the 6129 only known attack, and is the only possible defense for static DH 6130 ciphersuites. This could have some performance impact. 6131 6132 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 6133 default and cannot be disabled. This could have some performance impact. 6134 6135 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 6136 ([CVE-2016-0701]) 6137 6138 *Matt Caswell* 6139 6140 * SSLv2 doesn't block disabled ciphers 6141 6142 A malicious client can negotiate SSLv2 ciphers that have been disabled on 6143 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 6144 been disabled, provided that the SSLv2 protocol was not also disabled via 6145 SSL_OP_NO_SSLv2. 6146 6147 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 6148 and Sebastian Schinzel. 6149 ([CVE-2015-3197]) 6150 6151 *Viktor Dukhovni* 6152 6153### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 6154 6155 * BN_mod_exp may produce incorrect results on x86_64 6156 6157 There is a carry propagating bug in the x86_64 Montgomery squaring 6158 procedure. No EC algorithms are affected. Analysis suggests that attacks 6159 against RSA and DSA as a result of this defect would be very difficult to 6160 perform and are not believed likely. Attacks against DH are considered just 6161 feasible (although very difficult) because most of the work necessary to 6162 deduce information about a private key may be performed offline. The amount 6163 of resources required for such an attack would be very significant and 6164 likely only accessible to a limited number of attackers. An attacker would 6165 additionally need online access to an unpatched system using the target 6166 private key in a scenario with persistent DH parameters and a private 6167 key that is shared between multiple clients. For example this can occur by 6168 default in OpenSSL DHE based SSL/TLS ciphersuites. 6169 6170 This issue was reported to OpenSSL by Hanno Böck. 6171 ([CVE-2015-3193]) 6172 6173 *Andy Polyakov* 6174 6175 * Certificate verify crash with missing PSS parameter 6176 6177 The signature verification routines will crash with a NULL pointer 6178 dereference if presented with an ASN.1 signature using the RSA PSS 6179 algorithm and absent mask generation function parameter. Since these 6180 routines are used to verify certificate signature algorithms this can be 6181 used to crash any certificate verification operation and exploited in a 6182 DoS attack. Any application which performs certificate verification is 6183 vulnerable including OpenSSL clients and servers which enable client 6184 authentication. 6185 6186 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 6187 ([CVE-2015-3194]) 6188 6189 *Stephen Henson* 6190 6191 * X509_ATTRIBUTE memory leak 6192 6193 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 6194 memory. This structure is used by the PKCS#7 and CMS routines so any 6195 application which reads PKCS#7 or CMS data from untrusted sources is 6196 affected. SSL/TLS is not affected. 6197 6198 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 6199 libFuzzer. 6200 ([CVE-2015-3195]) 6201 6202 *Stephen Henson* 6203 6204 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 6205 This changes the decoding behaviour for some invalid messages, 6206 though the change is mostly in the more lenient direction, and 6207 legacy behaviour is preserved as much as possible. 6208 6209 *Emilia Käsper* 6210 6211 * In DSA_generate_parameters_ex, if the provided seed is too short, 6212 return an error 6213 6214 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 6215 6216### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6217 6218 * Alternate chains certificate forgery 6219 6220 During certificate verification, OpenSSL will attempt to find an 6221 alternative certificate chain if the first attempt to build such a chain 6222 fails. An error in the implementation of this logic can mean that an 6223 attacker could cause certain checks on untrusted certificates to be 6224 bypassed, such as the CA flag, enabling them to use a valid leaf 6225 certificate to act as a CA and "issue" an invalid certificate. 6226 6227 This issue was reported to OpenSSL by Adam Langley/David Benjamin 6228 (Google/BoringSSL). 6229 6230 *Matt Caswell* 6231 6232### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 6233 6234 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 6235 incompatibility in the handling of HMAC. The previous ABI has now been 6236 restored. 6237 6238 *Matt Caswell* 6239 6240### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 6241 6242 * Malformed ECParameters causes infinite loop 6243 6244 When processing an ECParameters structure OpenSSL enters an infinite loop 6245 if the curve specified is over a specially malformed binary polynomial 6246 field. 6247 6248 This can be used to perform denial of service against any 6249 system which processes public keys, certificate requests or 6250 certificates. This includes TLS clients and TLS servers with 6251 client authentication enabled. 6252 6253 This issue was reported to OpenSSL by Joseph Barr-Pixton. 6254 ([CVE-2015-1788]) 6255 6256 *Andy Polyakov* 6257 6258 * Exploitable out-of-bounds read in X509_cmp_time 6259 6260 X509_cmp_time does not properly check the length of the ASN1_TIME 6261 string and can read a few bytes out of bounds. In addition, 6262 X509_cmp_time accepts an arbitrary number of fractional seconds in the 6263 time string. 6264 6265 An attacker can use this to craft malformed certificates and CRLs of 6266 various sizes and potentially cause a segmentation fault, resulting in 6267 a DoS on applications that verify certificates or CRLs. TLS clients 6268 that verify CRLs are affected. TLS clients and servers with client 6269 authentication enabled may be affected if they use custom verification 6270 callbacks. 6271 6272 This issue was reported to OpenSSL by Robert Swiecki (Google), and 6273 independently by Hanno Böck. 6274 ([CVE-2015-1789]) 6275 6276 *Emilia Käsper* 6277 6278 * PKCS7 crash with missing EnvelopedContent 6279 6280 The PKCS#7 parsing code does not handle missing inner EncryptedContent 6281 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 6282 with missing content and trigger a NULL pointer dereference on parsing. 6283 6284 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 6285 structures from untrusted sources are affected. OpenSSL clients and 6286 servers are not affected. 6287 6288 This issue was reported to OpenSSL by Michal Zalewski (Google). 6289 ([CVE-2015-1790]) 6290 6291 *Emilia Käsper* 6292 6293 * CMS verify infinite loop with unknown hash function 6294 6295 When verifying a signedData message the CMS code can enter an infinite loop 6296 if presented with an unknown hash function OID. This can be used to perform 6297 denial of service against any system which verifies signedData messages using 6298 the CMS code. 6299 This issue was reported to OpenSSL by Johannes Bauer. 6300 ([CVE-2015-1792]) 6301 6302 *Stephen Henson* 6303 6304 * Race condition handling NewSessionTicket 6305 6306 If a NewSessionTicket is received by a multi-threaded client when attempting to 6307 reuse a previous ticket then a race condition can occur potentially leading to 6308 a double free of the ticket data. 6309 ([CVE-2015-1791]) 6310 6311 *Matt Caswell* 6312 6313 * Only support 256-bit or stronger elliptic curves with the 6314 'ecdh_auto' setting (server) or by default (client). Of supported 6315 curves, prefer P-256 (both). 6316 6317 *Emilia Kasper* 6318 6319### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 6320 6321 * ClientHello sigalgs DoS fix 6322 6323 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 6324 invalid signature algorithms extension a NULL pointer dereference will 6325 occur. This can be exploited in a DoS attack against the server. 6326 6327 This issue was was reported to OpenSSL by David Ramos of Stanford 6328 University. 6329 ([CVE-2015-0291]) 6330 6331 *Stephen Henson and Matt Caswell* 6332 6333 * Multiblock corrupted pointer fix 6334 6335 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 6336 feature only applies on 64 bit x86 architecture platforms that support AES 6337 NI instructions. A defect in the implementation of "multiblock" can cause 6338 OpenSSL's internal write buffer to become incorrectly set to NULL when 6339 using non-blocking IO. Typically, when the user application is using a 6340 socket BIO for writing, this will only result in a failed connection. 6341 However if some other BIO is used then it is likely that a segmentation 6342 fault will be triggered, thus enabling a potential DoS attack. 6343 6344 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6345 ([CVE-2015-0290]) 6346 6347 *Matt Caswell* 6348 6349 * Segmentation fault in DTLSv1_listen fix 6350 6351 The DTLSv1_listen function is intended to be stateless and processes the 6352 initial ClientHello from many peers. It is common for user code to loop 6353 over the call to DTLSv1_listen until a valid ClientHello is received with 6354 an associated cookie. A defect in the implementation of DTLSv1_listen means 6355 that state is preserved in the SSL object from one invocation to the next 6356 that can lead to a segmentation fault. Errors processing the initial 6357 ClientHello can trigger this scenario. An example of such an error could be 6358 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6359 server. 6360 6361 This issue was reported to OpenSSL by Per Allansson. 6362 ([CVE-2015-0207]) 6363 6364 *Matt Caswell* 6365 6366 * Segmentation fault in ASN1_TYPE_cmp fix 6367 6368 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6369 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6370 certificate signature algorithm consistency this can be used to crash any 6371 certificate verification operation and exploited in a DoS attack. Any 6372 application which performs certificate verification is vulnerable including 6373 OpenSSL clients and servers which enable client authentication. 6374 ([CVE-2015-0286]) 6375 6376 *Stephen Henson* 6377 6378 * Segmentation fault for invalid PSS parameters fix 6379 6380 The signature verification routines will crash with a NULL pointer 6381 dereference if presented with an ASN.1 signature using the RSA PSS 6382 algorithm and invalid parameters. Since these routines are used to verify 6383 certificate signature algorithms this can be used to crash any 6384 certificate verification operation and exploited in a DoS attack. Any 6385 application which performs certificate verification is vulnerable including 6386 OpenSSL clients and servers which enable client authentication. 6387 6388 This issue was was reported to OpenSSL by Brian Carpenter. 6389 ([CVE-2015-0208]) 6390 6391 *Stephen Henson* 6392 6393 * ASN.1 structure reuse memory corruption fix 6394 6395 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6396 memory corruption via an invalid write. Such reuse is and has been 6397 strongly discouraged and is believed to be rare. 6398 6399 Applications that parse structures containing CHOICE or ANY DEFINED BY 6400 components may be affected. Certificate parsing (d2i_X509 and related 6401 functions) are however not affected. OpenSSL clients and servers are 6402 not affected. 6403 ([CVE-2015-0287]) 6404 6405 *Stephen Henson* 6406 6407 * PKCS7 NULL pointer dereferences fix 6408 6409 The PKCS#7 parsing code does not handle missing outer ContentInfo 6410 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6411 missing content and trigger a NULL pointer dereference on parsing. 6412 6413 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6414 otherwise parse PKCS#7 structures from untrusted sources are 6415 affected. OpenSSL clients and servers are not affected. 6416 6417 This issue was reported to OpenSSL by Michal Zalewski (Google). 6418 ([CVE-2015-0289]) 6419 6420 *Emilia Käsper* 6421 6422 * DoS via reachable assert in SSLv2 servers fix 6423 6424 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6425 servers that both support SSLv2 and enable export cipher suites by sending 6426 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6427 6428 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6429 (OpenSSL development team). 6430 ([CVE-2015-0293]) 6431 6432 *Emilia Käsper* 6433 6434 * Empty CKE with client auth and DHE fix 6435 6436 If client auth is used then a server can seg fault in the event of a DHE 6437 ciphersuite being selected and a zero length ClientKeyExchange message 6438 being sent by the client. This could be exploited in a DoS attack. 6439 ([CVE-2015-1787]) 6440 6441 *Matt Caswell* 6442 6443 * Handshake with unseeded PRNG fix 6444 6445 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6446 with an unseeded PRNG. The conditions are: 6447 - The client is on a platform where the PRNG has not been seeded 6448 automatically, and the user has not seeded manually 6449 - A protocol specific client method version has been used (i.e. not 6450 SSL_client_methodv23) 6451 - A ciphersuite is used that does not require additional random data from 6452 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6453 6454 If the handshake succeeds then the client random that has been used will 6455 have been generated from a PRNG with insufficient entropy and therefore the 6456 output may be predictable. 6457 6458 For example using the following command with an unseeded openssl will 6459 succeed on an unpatched platform: 6460 6461 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6462 ([CVE-2015-0285]) 6463 6464 *Matt Caswell* 6465 6466 * Use After Free following d2i_ECPrivatekey error fix 6467 6468 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6469 could cause a use after free condition. This, in turn, could cause a double 6470 free in several private key parsing functions (such as d2i_PrivateKey 6471 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6472 for applications that receive EC private keys from untrusted 6473 sources. This scenario is considered rare. 6474 6475 This issue was discovered by the BoringSSL project and fixed in their 6476 commit 517073cd4b. 6477 ([CVE-2015-0209]) 6478 6479 *Matt Caswell* 6480 6481 * X509_to_X509_REQ NULL pointer deref fix 6482 6483 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6484 the certificate key is invalid. This function is rarely used in practice. 6485 6486 This issue was discovered by Brian Carpenter. 6487 ([CVE-2015-0288]) 6488 6489 *Stephen Henson* 6490 6491 * Removed the export ciphers from the DEFAULT ciphers 6492 6493 *Kurt Roeckx* 6494 6495### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6496 6497 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6498 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6499 So far those who have to target multiple platforms would compromise 6500 and argue that binary targeting say ARMv5 would still execute on 6501 ARMv8. "Universal" build resolves this compromise by providing 6502 near-optimal performance even on newer platforms. 6503 6504 *Andy Polyakov* 6505 6506 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6507 (other platforms pending). 6508 6509 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6510 6511 * Add support for the SignedCertificateTimestampList certificate and 6512 OCSP response extensions from RFC6962. 6513 6514 *Rob Stradling* 6515 6516 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6517 for corner cases. (Certain input points at infinity could lead to 6518 bogus results, with non-infinity inputs mapped to infinity too.) 6519 6520 *Bodo Moeller* 6521 6522 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6523 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6524 common cases are optimized and there still is room for further 6525 improvements. Vector Permutation AES for Altivec is also added. 6526 6527 *Andy Polyakov* 6528 6529 * Add support for little-endian ppc64 Linux target. 6530 6531 *Marcelo Cerri (IBM)* 6532 6533 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6534 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6535 are optimized and there still is room for further improvements. 6536 Both 32- and 64-bit modes are supported. 6537 6538 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6539 6540 * Improved ARMv7 NEON support. 6541 6542 *Andy Polyakov* 6543 6544 * Support for SPARC Architecture 2011 crypto extensions, first 6545 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6546 SHA256/512, MD5, GHASH and modular exponentiation. 6547 6548 *Andy Polyakov, David Miller* 6549 6550 * Accelerated modular exponentiation for Intel processors, a.k.a. 6551 RSAZ. 6552 6553 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6554 6555 * Support for new and upcoming Intel processors, including AVX2, 6556 BMI and SHA ISA extensions. This includes additional "stitched" 6557 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6558 for TLS encrypt. 6559 6560 This work was sponsored by Intel Corp. 6561 6562 *Andy Polyakov* 6563 6564 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6565 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6566 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6567 6568 *Steve Henson* 6569 6570 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6571 this fixes a limitation in previous versions of OpenSSL. 6572 6573 *Steve Henson* 6574 6575 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6576 MGF1 digest and OAEP label. 6577 6578 *Steve Henson* 6579 6580 * Add EVP support for key wrapping algorithms, to avoid problems with 6581 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6582 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6583 algorithms and include tests cases. 6584 6585 *Steve Henson* 6586 6587 * Add functions to allocate and set the fields of an ECDSA_METHOD 6588 structure. 6589 6590 *Douglas E. Engert, Steve Henson* 6591 6592 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6593 difference in days and seconds between two tm or ASN1_TIME structures. 6594 6595 *Steve Henson* 6596 6597 * Add -rev test option to s_server to just reverse order of characters 6598 received by client and send back to server. Also prints an abbreviated 6599 summary of the connection parameters. 6600 6601 *Steve Henson* 6602 6603 * New option -brief for s_client and s_server to print out a brief summary 6604 of connection parameters. 6605 6606 *Steve Henson* 6607 6608 * Add callbacks for arbitrary TLS extensions. 6609 6610 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6611 6612 * New option -crl_download in several openssl utilities to download CRLs 6613 from CRLDP extension in certificates. 6614 6615 *Steve Henson* 6616 6617 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6618 6619 *Steve Henson* 6620 6621 * New function X509_CRL_diff to generate a delta CRL from the difference 6622 of two full CRLs. Add support to "crl" utility. 6623 6624 *Steve Henson* 6625 6626 * New functions to set lookup_crls function and to retrieve 6627 X509_STORE from X509_STORE_CTX. 6628 6629 *Steve Henson* 6630 6631 * Print out deprecated issuer and subject unique ID fields in 6632 certificates. 6633 6634 *Steve Henson* 6635 6636 * Extend OCSP I/O functions so they can be used for simple general purpose 6637 HTTP as well as OCSP. New wrapper function which can be used to download 6638 CRLs using the OCSP API. 6639 6640 *Steve Henson* 6641 6642 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6643 6644 *Steve Henson* 6645 6646 * `SSL_CONF*` functions. These provide a common framework for application 6647 configuration using configuration files or command lines. 6648 6649 *Steve Henson* 6650 6651 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6652 message callback and prints the results. Needs compile time option 6653 "enable-ssl-trace". New options to s_client and s_server to enable 6654 tracing. 6655 6656 *Steve Henson* 6657 6658 * New ctrl and macro to retrieve supported points extensions. 6659 Print out extension in s_server and s_client. 6660 6661 *Steve Henson* 6662 6663 * New functions to retrieve certificate signature and signature 6664 OID NID. 6665 6666 *Steve Henson* 6667 6668 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6669 client to OpenSSL. 6670 6671 *Steve Henson* 6672 6673 * New Suite B modes for TLS code. These use and enforce the requirements 6674 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6675 only use Suite B curves. The Suite B modes can be set by using the 6676 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6677 6678 *Steve Henson* 6679 6680 * New chain verification flags for Suite B levels of security. Check 6681 algorithms are acceptable when flags are set in X509_verify_cert. 6682 6683 *Steve Henson* 6684 6685 * Make tls1_check_chain return a set of flags indicating checks passed 6686 by a certificate chain. Add additional tests to handle client 6687 certificates: checks for matching certificate type and issuer name 6688 comparison. 6689 6690 *Steve Henson* 6691 6692 * If an attempt is made to use a signature algorithm not in the peer 6693 preference list abort the handshake. If client has no suitable 6694 signature algorithms in response to a certificate request do not 6695 use the certificate. 6696 6697 *Steve Henson* 6698 6699 * If server EC tmp key is not in client preference list abort handshake. 6700 6701 *Steve Henson* 6702 6703 * Add support for certificate stores in CERT structure. This makes it 6704 possible to have different stores per SSL structure or one store in 6705 the parent SSL_CTX. Include distinct stores for certificate chain 6706 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6707 to build and store a certificate chain in CERT structure: returning 6708 an error if the chain cannot be built: this will allow applications 6709 to test if a chain is correctly configured. 6710 6711 Note: if the CERT based stores are not set then the parent SSL_CTX 6712 store is used to retain compatibility with existing behaviour. 6713 6714 *Steve Henson* 6715 6716 * New function ssl_set_client_disabled to set a ciphersuite disabled 6717 mask based on the current session, check mask when sending client 6718 hello and checking the requested ciphersuite. 6719 6720 *Steve Henson* 6721 6722 * New ctrls to retrieve and set certificate types in a certificate 6723 request message. Print out received values in s_client. If certificate 6724 types is not set with custom values set sensible values based on 6725 supported signature algorithms. 6726 6727 *Steve Henson* 6728 6729 * Support for distinct client and server supported signature algorithms. 6730 6731 *Steve Henson* 6732 6733 * Add certificate callback. If set this is called whenever a certificate 6734 is required by client or server. An application can decide which 6735 certificate chain to present based on arbitrary criteria: for example 6736 supported signature algorithms. Add very simple example to s_server. 6737 This fixes many of the problems and restrictions of the existing client 6738 certificate callback: for example you can now clear an existing 6739 certificate and specify the whole chain. 6740 6741 *Steve Henson* 6742 6743 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6744 the certificate can be used for (if anything). Set valid_flags field 6745 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6746 to have similar checks in it. 6747 6748 Add new "cert_flags" field to CERT structure and include a "strict mode". 6749 This enforces some TLS certificate requirements (such as only permitting 6750 certificate signature algorithms contained in the supported algorithms 6751 extension) which some implementations ignore: this option should be used 6752 with caution as it could cause interoperability issues. 6753 6754 *Steve Henson* 6755 6756 * Update and tidy signature algorithm extension processing. Work out 6757 shared signature algorithms based on preferences and peer algorithms 6758 and print them out in s_client and s_server. Abort handshake if no 6759 shared signature algorithms. 6760 6761 *Steve Henson* 6762 6763 * Add new functions to allow customised supported signature algorithms 6764 for SSL and SSL_CTX structures. Add options to s_client and s_server 6765 to support them. 6766 6767 *Steve Henson* 6768 6769 * New function SSL_certs_clear() to delete all references to certificates 6770 from an SSL structure. Before this once a certificate had been added 6771 it couldn't be removed. 6772 6773 *Steve Henson* 6774 6775 * Integrate hostname, email address and IP address checking with certificate 6776 verification. New verify options supporting checking in openssl utility. 6777 6778 *Steve Henson* 6779 6780 * Fixes and wildcard matching support to hostname and email checking 6781 functions. Add manual page. 6782 6783 *Florian Weimer (Red Hat Product Security Team)* 6784 6785 * New functions to check a hostname email or IP address against a 6786 certificate. Add options x509 utility to print results of checks against 6787 a certificate. 6788 6789 *Steve Henson* 6790 6791 * Fix OCSP checking. 6792 6793 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6794 6795 * Initial experimental support for explicitly trusted non-root CAs. 6796 OpenSSL still tries to build a complete chain to a root but if an 6797 intermediate CA has a trust setting included that is used. The first 6798 setting is used: whether to trust (e.g., -addtrust option to the x509 6799 utility) or reject. 6800 6801 *Steve Henson* 6802 6803 * Add -trusted_first option which attempts to find certificates in the 6804 trusted store even if an untrusted chain is also supplied. 6805 6806 *Steve Henson* 6807 6808 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6809 platform support for Linux and Android. 6810 6811 *Andy Polyakov* 6812 6813 * Support for linux-x32, ILP32 environment in x86_64 framework. 6814 6815 *Andy Polyakov* 6816 6817 * Experimental multi-implementation support for FIPS capable OpenSSL. 6818 When in FIPS mode the approved implementations are used as normal, 6819 when not in FIPS mode the internal unapproved versions are used instead. 6820 This means that the FIPS capable OpenSSL isn't forced to use the 6821 (often lower performance) FIPS implementations outside FIPS mode. 6822 6823 *Steve Henson* 6824 6825 * Transparently support X9.42 DH parameters when calling 6826 PEM_read_bio_DHparameters. This means existing applications can handle 6827 the new parameter format automatically. 6828 6829 *Steve Henson* 6830 6831 * Initial experimental support for X9.42 DH parameter format: mainly 6832 to support use of 'q' parameter for RFC5114 parameters. 6833 6834 *Steve Henson* 6835 6836 * Add DH parameters from RFC5114 including test data to dhtest. 6837 6838 *Steve Henson* 6839 6840 * Support for automatic EC temporary key parameter selection. If enabled 6841 the most preferred EC parameters are automatically used instead of 6842 hardcoded fixed parameters. Now a server just has to call: 6843 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6844 support ECDH and use the most appropriate parameters. 6845 6846 *Steve Henson* 6847 6848 * Enhance and tidy EC curve and point format TLS extension code. Use 6849 static structures instead of allocation if default values are used. 6850 New ctrls to set curves we wish to support and to retrieve shared curves. 6851 Print out shared curves in s_server. New options to s_server and s_client 6852 to set list of supported curves. 6853 6854 *Steve Henson* 6855 6856 * New ctrls to retrieve supported signature algorithms and 6857 supported curve values as an array of NIDs. Extend openssl utility 6858 to print out received values. 6859 6860 *Steve Henson* 6861 6862 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6863 between NIDs and the more common NIST names such as "P-256". Enhance 6864 ecparam utility and ECC method to recognise the NIST names for curves. 6865 6866 *Steve Henson* 6867 6868 * Enhance SSL/TLS certificate chain handling to support different 6869 chains for each certificate instead of one chain in the parent SSL_CTX. 6870 6871 *Steve Henson* 6872 6873 * Support for fixed DH ciphersuite client authentication: where both 6874 server and client use DH certificates with common parameters. 6875 6876 *Steve Henson* 6877 6878 * Support for fixed DH ciphersuites: those requiring DH server 6879 certificates. 6880 6881 *Steve Henson* 6882 6883 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6884 the certificate. 6885 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6886 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6887 X509_CINF_get_signature were reverted post internal team review. 6888 6889OpenSSL 1.0.1 6890------------- 6891 6892### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6893 6894 * OCSP Status Request extension unbounded memory growth 6895 6896 A malicious client can send an excessively large OCSP Status Request 6897 extension. If that client continually requests renegotiation, sending a 6898 large OCSP Status Request extension each time, then there will be unbounded 6899 memory growth on the server. This will eventually lead to a Denial Of 6900 Service attack through memory exhaustion. Servers with a default 6901 configuration are vulnerable even if they do not support OCSP. Builds using 6902 the "no-ocsp" build time option are not affected. 6903 6904 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6905 ([CVE-2016-6304]) 6906 6907 *Matt Caswell* 6908 6909 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6910 HIGH to MEDIUM. 6911 6912 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6913 Leurent (INRIA) 6914 ([CVE-2016-2183]) 6915 6916 *Rich Salz* 6917 6918 * OOB write in MDC2_Update() 6919 6920 An overflow can occur in MDC2_Update() either if called directly or 6921 through the EVP_DigestUpdate() function using MDC2. If an attacker 6922 is able to supply very large amounts of input data after a previous 6923 call to EVP_EncryptUpdate() with a partial block then a length check 6924 can overflow resulting in a heap corruption. 6925 6926 The amount of data needed is comparable to SIZE_MAX which is impractical 6927 on most platforms. 6928 6929 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6930 ([CVE-2016-6303]) 6931 6932 *Stephen Henson* 6933 6934 * Malformed SHA512 ticket DoS 6935 6936 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6937 DoS attack where a malformed ticket will result in an OOB read which will 6938 ultimately crash. 6939 6940 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6941 a custom server callback and ticket lookup mechanism. 6942 6943 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6944 ([CVE-2016-6302]) 6945 6946 *Stephen Henson* 6947 6948 * OOB write in BN_bn2dec() 6949 6950 The function BN_bn2dec() does not check the return value of BN_div_word(). 6951 This can cause an OOB write if an application uses this function with an 6952 overly large BIGNUM. This could be a problem if an overly large certificate 6953 or CRL is printed out from an untrusted source. TLS is not affected because 6954 record limits will reject an oversized certificate before it is parsed. 6955 6956 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6957 ([CVE-2016-2182]) 6958 6959 *Stephen Henson* 6960 6961 * OOB read in TS_OBJ_print_bio() 6962 6963 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6964 the total length the OID text representation would use and not the amount 6965 of data written. This will result in OOB reads when large OIDs are 6966 presented. 6967 6968 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6969 ([CVE-2016-2180]) 6970 6971 *Stephen Henson* 6972 6973 * Pointer arithmetic undefined behaviour 6974 6975 Avoid some undefined pointer arithmetic 6976 6977 A common idiom in the codebase is to check limits in the following manner: 6978 "p + len > limit" 6979 6980 Where "p" points to some malloc'd data of SIZE bytes and 6981 limit == p + SIZE 6982 6983 "len" here could be from some externally supplied data (e.g. from a TLS 6984 message). 6985 6986 The rules of C pointer arithmetic are such that "p + len" is only well 6987 defined where len <= SIZE. Therefore the above idiom is actually 6988 undefined behaviour. 6989 6990 For example this could cause problems if some malloc implementation 6991 provides an address for "p" such that "p + len" actually overflows for 6992 values of len that are too big and therefore p + len < limit. 6993 6994 This issue was reported to OpenSSL by Guido Vranken 6995 ([CVE-2016-2177]) 6996 6997 *Matt Caswell* 6998 6999 * Constant time flag not preserved in DSA signing 7000 7001 Operations in the DSA signing algorithm should run in constant time in 7002 order to avoid side channel attacks. A flaw in the OpenSSL DSA 7003 implementation means that a non-constant time codepath is followed for 7004 certain operations. This has been demonstrated through a cache-timing 7005 attack to be sufficient for an attacker to recover the private DSA key. 7006 7007 This issue was reported by César Pereida (Aalto University), Billy Brumley 7008 (Tampere University of Technology), and Yuval Yarom (The University of 7009 Adelaide and NICTA). 7010 ([CVE-2016-2178]) 7011 7012 *César Pereida* 7013 7014 * DTLS buffered message DoS 7015 7016 In a DTLS connection where handshake messages are delivered out-of-order 7017 those messages that OpenSSL is not yet ready to process will be buffered 7018 for later use. Under certain circumstances, a flaw in the logic means that 7019 those messages do not get removed from the buffer even though the handshake 7020 has been completed. An attacker could force up to approx. 15 messages to 7021 remain in the buffer when they are no longer required. These messages will 7022 be cleared when the DTLS connection is closed. The default maximum size for 7023 a message is 100k. Therefore the attacker could force an additional 1500k 7024 to be consumed per connection. By opening many simulataneous connections an 7025 attacker could cause a DoS attack through memory exhaustion. 7026 7027 This issue was reported to OpenSSL by Quan Luo. 7028 ([CVE-2016-2179]) 7029 7030 *Matt Caswell* 7031 7032 * DTLS replay protection DoS 7033 7034 A flaw in the DTLS replay attack protection mechanism means that records 7035 that arrive for future epochs update the replay protection "window" before 7036 the MAC for the record has been validated. This could be exploited by an 7037 attacker by sending a record for the next epoch (which does not have to 7038 decrypt or have a valid MAC), with a very large sequence number. This means 7039 that all subsequent legitimate packets are dropped causing a denial of 7040 service for a specific DTLS connection. 7041 7042 This issue was reported to OpenSSL by the OCAP audit team. 7043 ([CVE-2016-2181]) 7044 7045 *Matt Caswell* 7046 7047 * Certificate message OOB reads 7048 7049 In OpenSSL 1.0.2 and earlier some missing message length checks can result 7050 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 7051 theoretical DoS risk but this has not been observed in practice on common 7052 platforms. 7053 7054 The messages affected are client certificate, client certificate request 7055 and server certificate. As a result the attack can only be performed 7056 against a client or a server which enables client authentication. 7057 7058 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 7059 ([CVE-2016-6306]) 7060 7061 *Stephen Henson* 7062 7063### Changes between 1.0.1s and 1.0.1t [3 May 2016] 7064 7065 * Prevent padding oracle in AES-NI CBC MAC check 7066 7067 A MITM attacker can use a padding oracle attack to decrypt traffic 7068 when the connection uses an AES CBC cipher and the server support 7069 AES-NI. 7070 7071 This issue was introduced as part of the fix for Lucky 13 padding 7072 attack ([CVE-2013-0169]). The padding check was rewritten to be in 7073 constant time by making sure that always the same bytes are read and 7074 compared against either the MAC or padding bytes. But it no longer 7075 checked that there was enough data to have both the MAC and padding 7076 bytes. 7077 7078 This issue was reported by Juraj Somorovsky using TLS-Attacker. 7079 ([CVE-2016-2107]) 7080 7081 *Kurt Roeckx* 7082 7083 * Fix EVP_EncodeUpdate overflow 7084 7085 An overflow can occur in the EVP_EncodeUpdate() function which is used for 7086 Base64 encoding of binary data. If an attacker is able to supply very large 7087 amounts of input data then a length check can overflow resulting in a heap 7088 corruption. 7089 7090 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 7091 the `PEM_write_bio*` family of functions. These are mainly used within the 7092 OpenSSL command line applications, so any application which processes data 7093 from an untrusted source and outputs it as a PEM file should be considered 7094 vulnerable to this issue. User applications that call these APIs directly 7095 with large amounts of untrusted data may also be vulnerable. 7096 7097 This issue was reported by Guido Vranken. 7098 ([CVE-2016-2105]) 7099 7100 *Matt Caswell* 7101 7102 * Fix EVP_EncryptUpdate overflow 7103 7104 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 7105 is able to supply very large amounts of input data after a previous call to 7106 EVP_EncryptUpdate() with a partial block then a length check can overflow 7107 resulting in a heap corruption. Following an analysis of all OpenSSL 7108 internal usage of the EVP_EncryptUpdate() function all usage is one of two 7109 forms. The first form is where the EVP_EncryptUpdate() call is known to be 7110 the first called function after an EVP_EncryptInit(), and therefore that 7111 specific call must be safe. The second form is where the length passed to 7112 EVP_EncryptUpdate() can be seen from the code to be some small value and 7113 therefore there is no possibility of an overflow. Since all instances are 7114 one of these two forms, it is believed that there can be no overflows in 7115 internal code due to this problem. It should be noted that 7116 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 7117 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 7118 of these calls have also been analysed too and it is believed there are no 7119 instances in internal usage where an overflow could occur. 7120 7121 This issue was reported by Guido Vranken. 7122 ([CVE-2016-2106]) 7123 7124 *Matt Caswell* 7125 7126 * Prevent ASN.1 BIO excessive memory allocation 7127 7128 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 7129 a short invalid encoding can casuse allocation of large amounts of memory 7130 potentially consuming excessive resources or exhausting memory. 7131 7132 Any application parsing untrusted data through d2i BIO functions is 7133 affected. The memory based functions such as d2i_X509() are *not* affected. 7134 Since the memory based functions are used by the TLS library, TLS 7135 applications are not affected. 7136 7137 This issue was reported by Brian Carpenter. 7138 ([CVE-2016-2109]) 7139 7140 *Stephen Henson* 7141 7142 * EBCDIC overread 7143 7144 ASN1 Strings that are over 1024 bytes can cause an overread in applications 7145 using the X509_NAME_oneline() function on EBCDIC systems. This could result 7146 in arbitrary stack data being returned in the buffer. 7147 7148 This issue was reported by Guido Vranken. 7149 ([CVE-2016-2176]) 7150 7151 *Matt Caswell* 7152 7153 * Modify behavior of ALPN to invoke callback after SNI/servername 7154 callback, such that updates to the SSL_CTX affect ALPN. 7155 7156 *Todd Short* 7157 7158 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 7159 default. 7160 7161 *Kurt Roeckx* 7162 7163 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 7164 methods are enabled and ssl2 is disabled the methods return NULL. 7165 7166 *Kurt Roeckx* 7167 7168### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 7169 7170* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 7171 Builds that are not configured with "enable-weak-ssl-ciphers" will not 7172 provide any "EXPORT" or "LOW" strength ciphers. 7173 7174 *Viktor Dukhovni* 7175 7176* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 7177 is by default disabled at build-time. Builds that are not configured with 7178 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 7179 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 7180 will need to explicitly call either of: 7181 7182 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 7183 or 7184 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 7185 7186 as appropriate. Even if either of those is used, or the application 7187 explicitly uses the version-specific SSLv2_method() or its client and 7188 server variants, SSLv2 ciphers vulnerable to exhaustive search key 7189 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 7190 ciphers, and SSLv2 56-bit DES are no longer available. 7191 ([CVE-2016-0800]) 7192 7193 *Viktor Dukhovni* 7194 7195 * Fix a double-free in DSA code 7196 7197 A double free bug was discovered when OpenSSL parses malformed DSA private 7198 keys and could lead to a DoS attack or memory corruption for applications 7199 that receive DSA private keys from untrusted sources. This scenario is 7200 considered rare. 7201 7202 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 7203 libFuzzer. 7204 ([CVE-2016-0705]) 7205 7206 *Stephen Henson* 7207 7208 * Disable SRP fake user seed to address a server memory leak. 7209 7210 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 7211 7212 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 7213 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7214 was changed to ignore the "fake user" SRP seed, even if the seed 7215 is configured. 7216 7217 Users should use SRP_VBASE_get1_by_user instead. Note that in 7218 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7219 also that even though configuring the SRP seed attempts to hide 7220 invalid usernames by continuing the handshake with fake 7221 credentials, this behaviour is not constant time and no strong 7222 guarantees are made that the handshake is indistinguishable from 7223 that of a valid user. 7224 ([CVE-2016-0798]) 7225 7226 *Emilia Käsper* 7227 7228 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7229 7230 In the BN_hex2bn function the number of hex digits is calculated using an 7231 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7232 large values of `i` this can result in `bn_expand` not allocating any 7233 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7234 field as NULL leading to a subsequent NULL ptr deref. For very large values 7235 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7236 In this case memory is allocated to the internal BIGNUM data field, but it 7237 is insufficiently sized leading to heap corruption. A similar issue exists 7238 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7239 is ever called by user applications with very large untrusted hex/dec data. 7240 This is anticipated to be a rare occurrence. 7241 7242 All OpenSSL internal usage of these functions use data that is not expected 7243 to be untrusted, e.g. config file data or application command line 7244 arguments. If user developed applications generate config file data based 7245 on untrusted data then it is possible that this could also lead to security 7246 consequences. This is also anticipated to be rare. 7247 7248 This issue was reported to OpenSSL by Guido Vranken. 7249 ([CVE-2016-0797]) 7250 7251 *Matt Caswell* 7252 7253 * Fix memory issues in `BIO_*printf` functions 7254 7255 The internal `fmtstr` function used in processing a "%s" format string in 7256 the `BIO_*printf` functions could overflow while calculating the length of a 7257 string and cause an OOB read when printing very long strings. 7258 7259 Additionally the internal `doapr_outch` function can attempt to write to an 7260 OOB memory location (at an offset from the NULL pointer) in the event of a 7261 memory allocation failure. In 1.0.2 and below this could be caused where 7262 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7263 could be in processing a very long "%s" format string. Memory leaks can 7264 also occur. 7265 7266 The first issue may mask the second issue dependent on compiler behaviour. 7267 These problems could enable attacks where large amounts of untrusted data 7268 is passed to the `BIO_*printf` functions. If applications use these functions 7269 in this way then they could be vulnerable. OpenSSL itself uses these 7270 functions when printing out human-readable dumps of ASN.1 data. Therefore 7271 applications that print this data could be vulnerable if the data is from 7272 untrusted sources. OpenSSL command line applications could also be 7273 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7274 as command line arguments. 7275 7276 Libssl is not considered directly vulnerable. Additionally certificates etc 7277 received via remote connections via libssl are also unlikely to be able to 7278 trigger these issues because of message size limits enforced within libssl. 7279 7280 This issue was reported to OpenSSL Guido Vranken. 7281 ([CVE-2016-0799]) 7282 7283 *Matt Caswell* 7284 7285 * Side channel attack on modular exponentiation 7286 7287 A side-channel attack was found which makes use of cache-bank conflicts on 7288 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7289 of RSA keys. The ability to exploit this issue is limited as it relies on 7290 an attacker who has control of code in a thread running on the same 7291 hyper-threaded core as the victim thread which is performing decryptions. 7292 7293 This issue was reported to OpenSSL by Yuval Yarom, The University of 7294 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7295 Nadia Heninger, University of Pennsylvania with more information at 7296 <http://cachebleed.info>. 7297 ([CVE-2016-0702]) 7298 7299 *Andy Polyakov* 7300 7301 * Change the req command to generate a 2048-bit RSA/DSA key by default, 7302 if no keysize is specified with default_bits. This fixes an 7303 omission in an earlier change that changed all RSA/DSA key generation 7304 commands to use 2048 bits by default. 7305 7306 *Emilia Käsper* 7307 7308### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 7309 7310 * Protection for DH small subgroup attacks 7311 7312 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 7313 switched on by default and cannot be disabled. This could have some 7314 performance impact. 7315 7316 *Matt Caswell* 7317 7318 * SSLv2 doesn't block disabled ciphers 7319 7320 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7321 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7322 been disabled, provided that the SSLv2 protocol was not also disabled via 7323 SSL_OP_NO_SSLv2. 7324 7325 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7326 and Sebastian Schinzel. 7327 ([CVE-2015-3197]) 7328 7329 *Viktor Dukhovni* 7330 7331 * Reject DH handshakes with parameters shorter than 1024 bits. 7332 7333 *Kurt Roeckx* 7334 7335### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 7336 7337 * Certificate verify crash with missing PSS parameter 7338 7339 The signature verification routines will crash with a NULL pointer 7340 dereference if presented with an ASN.1 signature using the RSA PSS 7341 algorithm and absent mask generation function parameter. Since these 7342 routines are used to verify certificate signature algorithms this can be 7343 used to crash any certificate verification operation and exploited in a 7344 DoS attack. Any application which performs certificate verification is 7345 vulnerable including OpenSSL clients and servers which enable client 7346 authentication. 7347 7348 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7349 ([CVE-2015-3194]) 7350 7351 *Stephen Henson* 7352 7353 * X509_ATTRIBUTE memory leak 7354 7355 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7356 memory. This structure is used by the PKCS#7 and CMS routines so any 7357 application which reads PKCS#7 or CMS data from untrusted sources is 7358 affected. SSL/TLS is not affected. 7359 7360 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7361 libFuzzer. 7362 ([CVE-2015-3195]) 7363 7364 *Stephen Henson* 7365 7366 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7367 This changes the decoding behaviour for some invalid messages, 7368 though the change is mostly in the more lenient direction, and 7369 legacy behaviour is preserved as much as possible. 7370 7371 *Emilia Käsper* 7372 7373 * In DSA_generate_parameters_ex, if the provided seed is too short, 7374 use a random seed, as already documented. 7375 7376 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7377 7378### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7379 7380 * Alternate chains certificate forgery 7381 7382 During certificate verfification, OpenSSL will attempt to find an 7383 alternative certificate chain if the first attempt to build such a chain 7384 fails. An error in the implementation of this logic can mean that an 7385 attacker could cause certain checks on untrusted certificates to be 7386 bypassed, such as the CA flag, enabling them to use a valid leaf 7387 certificate to act as a CA and "issue" an invalid certificate. 7388 7389 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7390 (Google/BoringSSL). 7391 ([CVE-2015-1793]) 7392 7393 *Matt Caswell* 7394 7395 * Race condition handling PSK identify hint 7396 7397 If PSK identity hints are received by a multi-threaded client then 7398 the values are wrongly updated in the parent SSL_CTX structure. This can 7399 result in a race condition potentially leading to a double free of the 7400 identify hint data. 7401 ([CVE-2015-3196]) 7402 7403 *Stephen Henson* 7404 7405### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7406 7407 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7408 incompatibility in the handling of HMAC. The previous ABI has now been 7409 restored. 7410 7411### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7412 7413 * Malformed ECParameters causes infinite loop 7414 7415 When processing an ECParameters structure OpenSSL enters an infinite loop 7416 if the curve specified is over a specially malformed binary polynomial 7417 field. 7418 7419 This can be used to perform denial of service against any 7420 system which processes public keys, certificate requests or 7421 certificates. This includes TLS clients and TLS servers with 7422 client authentication enabled. 7423 7424 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7425 ([CVE-2015-1788]) 7426 7427 *Andy Polyakov* 7428 7429 * Exploitable out-of-bounds read in X509_cmp_time 7430 7431 X509_cmp_time does not properly check the length of the ASN1_TIME 7432 string and can read a few bytes out of bounds. In addition, 7433 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7434 time string. 7435 7436 An attacker can use this to craft malformed certificates and CRLs of 7437 various sizes and potentially cause a segmentation fault, resulting in 7438 a DoS on applications that verify certificates or CRLs. TLS clients 7439 that verify CRLs are affected. TLS clients and servers with client 7440 authentication enabled may be affected if they use custom verification 7441 callbacks. 7442 7443 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7444 independently by Hanno Böck. 7445 ([CVE-2015-1789]) 7446 7447 *Emilia Käsper* 7448 7449 * PKCS7 crash with missing EnvelopedContent 7450 7451 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7452 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7453 with missing content and trigger a NULL pointer dereference on parsing. 7454 7455 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7456 structures from untrusted sources are affected. OpenSSL clients and 7457 servers are not affected. 7458 7459 This issue was reported to OpenSSL by Michal Zalewski (Google). 7460 ([CVE-2015-1790]) 7461 7462 *Emilia Käsper* 7463 7464 * CMS verify infinite loop with unknown hash function 7465 7466 When verifying a signedData message the CMS code can enter an infinite loop 7467 if presented with an unknown hash function OID. This can be used to perform 7468 denial of service against any system which verifies signedData messages using 7469 the CMS code. 7470 This issue was reported to OpenSSL by Johannes Bauer. 7471 ([CVE-2015-1792]) 7472 7473 *Stephen Henson* 7474 7475 * Race condition handling NewSessionTicket 7476 7477 If a NewSessionTicket is received by a multi-threaded client when attempting to 7478 reuse a previous ticket then a race condition can occur potentially leading to 7479 a double free of the ticket data. 7480 ([CVE-2015-1791]) 7481 7482 *Matt Caswell* 7483 7484 * Reject DH handshakes with parameters shorter than 768 bits. 7485 7486 *Kurt Roeckx and Emilia Kasper* 7487 7488 * dhparam: generate 2048-bit parameters by default. 7489 7490 *Kurt Roeckx and Emilia Kasper* 7491 7492### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7493 7494 * Segmentation fault in ASN1_TYPE_cmp fix 7495 7496 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7497 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7498 certificate signature algorithm consistency this can be used to crash any 7499 certificate verification operation and exploited in a DoS attack. Any 7500 application which performs certificate verification is vulnerable including 7501 OpenSSL clients and servers which enable client authentication. 7502 ([CVE-2015-0286]) 7503 7504 *Stephen Henson* 7505 7506 * ASN.1 structure reuse memory corruption fix 7507 7508 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7509 memory corruption via an invalid write. Such reuse is and has been 7510 strongly discouraged and is believed to be rare. 7511 7512 Applications that parse structures containing CHOICE or ANY DEFINED BY 7513 components may be affected. Certificate parsing (d2i_X509 and related 7514 functions) are however not affected. OpenSSL clients and servers are 7515 not affected. 7516 ([CVE-2015-0287]) 7517 7518 *Stephen Henson* 7519 7520 * PKCS7 NULL pointer dereferences fix 7521 7522 The PKCS#7 parsing code does not handle missing outer ContentInfo 7523 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7524 missing content and trigger a NULL pointer dereference on parsing. 7525 7526 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7527 otherwise parse PKCS#7 structures from untrusted sources are 7528 affected. OpenSSL clients and servers are not affected. 7529 7530 This issue was reported to OpenSSL by Michal Zalewski (Google). 7531 ([CVE-2015-0289]) 7532 7533 *Emilia Käsper* 7534 7535 * DoS via reachable assert in SSLv2 servers fix 7536 7537 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7538 servers that both support SSLv2 and enable export cipher suites by sending 7539 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7540 7541 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7542 (OpenSSL development team). 7543 ([CVE-2015-0293]) 7544 7545 *Emilia Käsper* 7546 7547 * Use After Free following d2i_ECPrivatekey error fix 7548 7549 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7550 could cause a use after free condition. This, in turn, could cause a double 7551 free in several private key parsing functions (such as d2i_PrivateKey 7552 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7553 for applications that receive EC private keys from untrusted 7554 sources. This scenario is considered rare. 7555 7556 This issue was discovered by the BoringSSL project and fixed in their 7557 commit 517073cd4b. 7558 ([CVE-2015-0209]) 7559 7560 *Matt Caswell* 7561 7562 * X509_to_X509_REQ NULL pointer deref fix 7563 7564 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7565 the certificate key is invalid. This function is rarely used in practice. 7566 7567 This issue was discovered by Brian Carpenter. 7568 ([CVE-2015-0288]) 7569 7570 *Stephen Henson* 7571 7572 * Removed the export ciphers from the DEFAULT ciphers 7573 7574 *Kurt Roeckx* 7575 7576### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7577 7578 * Build fixes for the Windows and OpenVMS platforms 7579 7580 *Matt Caswell and Richard Levitte* 7581 7582### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7583 7584 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7585 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7586 dereference. This could lead to a Denial Of Service attack. Thanks to 7587 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7588 ([CVE-2014-3571]) 7589 7590 *Steve Henson* 7591 7592 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7593 dtls1_buffer_record function under certain conditions. In particular this 7594 could occur if an attacker sent repeated DTLS records with the same 7595 sequence number but for the next epoch. The memory leak could be exploited 7596 by an attacker in a Denial of Service attack through memory exhaustion. 7597 Thanks to Chris Mueller for reporting this issue. 7598 ([CVE-2015-0206]) 7599 7600 *Matt Caswell* 7601 7602 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7603 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7604 method would be set to NULL which could later result in a NULL pointer 7605 dereference. Thanks to Frank Schmirler for reporting this issue. 7606 ([CVE-2014-3569]) 7607 7608 *Kurt Roeckx* 7609 7610 * Abort handshake if server key exchange message is omitted for ephemeral 7611 ECDH ciphersuites. 7612 7613 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7614 reporting this issue. 7615 ([CVE-2014-3572]) 7616 7617 *Steve Henson* 7618 7619 * Remove non-export ephemeral RSA code on client and server. This code 7620 violated the TLS standard by allowing the use of temporary RSA keys in 7621 non-export ciphersuites and could be used by a server to effectively 7622 downgrade the RSA key length used to a value smaller than the server 7623 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7624 INRIA or reporting this issue. 7625 ([CVE-2015-0204]) 7626 7627 *Steve Henson* 7628 7629 * Fixed issue where DH client certificates are accepted without verification. 7630 An OpenSSL server will accept a DH certificate for client authentication 7631 without the certificate verify message. This effectively allows a client to 7632 authenticate without the use of a private key. This only affects servers 7633 which trust a client certificate authority which issues certificates 7634 containing DH keys: these are extremely rare and hardly ever encountered. 7635 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7636 this issue. 7637 ([CVE-2015-0205]) 7638 7639 *Steve Henson* 7640 7641 * Ensure that the session ID context of an SSL is updated when its 7642 SSL_CTX is updated via SSL_set_SSL_CTX. 7643 7644 The session ID context is typically set from the parent SSL_CTX, 7645 and can vary with the CTX. 7646 7647 *Adam Langley* 7648 7649 * Fix various certificate fingerprint issues. 7650 7651 By using non-DER or invalid encodings outside the signed portion of a 7652 certificate the fingerprint can be changed without breaking the signature. 7653 Although no details of the signed portion of the certificate can be changed 7654 this can cause problems with some applications: e.g. those using the 7655 certificate fingerprint for blacklists. 7656 7657 1. Reject signatures with non zero unused bits. 7658 7659 If the BIT STRING containing the signature has non zero unused bits reject 7660 the signature. All current signature algorithms require zero unused bits. 7661 7662 2. Check certificate algorithm consistency. 7663 7664 Check the AlgorithmIdentifier inside TBS matches the one in the 7665 certificate signature. NB: this will result in signature failure 7666 errors for some broken certificates. 7667 7668 Thanks to Konrad Kraszewski from Google for reporting this issue. 7669 7670 3. Check DSA/ECDSA signatures use DER. 7671 7672 Re-encode DSA/ECDSA signatures and compare with the original received 7673 signature. Return an error if there is a mismatch. 7674 7675 This will reject various cases including garbage after signature 7676 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7677 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7678 (negative or with leading zeroes). 7679 7680 Further analysis was conducted and fixes were developed by Stephen Henson 7681 of the OpenSSL core team. 7682 7683 ([CVE-2014-8275]) 7684 7685 *Steve Henson* 7686 7687 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7688 results on some platforms, including x86_64. This bug occurs at random 7689 with a very low probability, and is not known to be exploitable in any 7690 way, though its exact impact is difficult to determine. Thanks to Pieter 7691 Wuille (Blockstream) who reported this issue and also suggested an initial 7692 fix. Further analysis was conducted by the OpenSSL development team and 7693 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7694 the OpenSSL core team. 7695 ([CVE-2014-3570]) 7696 7697 *Andy Polyakov* 7698 7699 * Do not resume sessions on the server if the negotiated protocol 7700 version does not match the session's version. Resuming with a different 7701 version, while not strictly forbidden by the RFC, is of questionable 7702 sanity and breaks all known clients. 7703 7704 *David Benjamin, Emilia Käsper* 7705 7706 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7707 early CCS messages during renegotiation. (Note that because 7708 renegotiation is encrypted, this early CCS was not exploitable.) 7709 7710 *Emilia Käsper* 7711 7712 * Tighten client-side session ticket handling during renegotiation: 7713 ensure that the client only accepts a session ticket if the server sends 7714 the extension anew in the ServerHello. Previously, a TLS client would 7715 reuse the old extension state and thus accept a session ticket if one was 7716 announced in the initial ServerHello. 7717 7718 Similarly, ensure that the client requires a session ticket if one 7719 was advertised in the ServerHello. Previously, a TLS client would 7720 ignore a missing NewSessionTicket message. 7721 7722 *Emilia Käsper* 7723 7724### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7725 7726 * SRTP Memory Leak. 7727 7728 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7729 sends a carefully crafted handshake message, to cause OpenSSL to fail 7730 to free up to 64k of memory causing a memory leak. This could be 7731 exploited in a Denial Of Service attack. This issue affects OpenSSL 7732 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7733 whether SRTP is used or configured. Implementations of OpenSSL that 7734 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7735 7736 The fix was developed by the OpenSSL team. 7737 ([CVE-2014-3513]) 7738 7739 *OpenSSL team* 7740 7741 * Session Ticket Memory Leak. 7742 7743 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7744 integrity of that ticket is first verified. In the event of a session 7745 ticket integrity check failing, OpenSSL will fail to free memory 7746 causing a memory leak. By sending a large number of invalid session 7747 tickets an attacker could exploit this issue in a Denial Of Service 7748 attack. 7749 ([CVE-2014-3567]) 7750 7751 *Steve Henson* 7752 7753 * Build option no-ssl3 is incomplete. 7754 7755 When OpenSSL is configured with "no-ssl3" as a build option, servers 7756 could accept and complete a SSL 3.0 handshake, and clients could be 7757 configured to send them. 7758 ([CVE-2014-3568]) 7759 7760 *Akamai and the OpenSSL team* 7761 7762 * Add support for TLS_FALLBACK_SCSV. 7763 Client applications doing fallback retries should call 7764 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7765 ([CVE-2014-3566]) 7766 7767 *Adam Langley, Bodo Moeller* 7768 7769 * Add additional DigestInfo checks. 7770 7771 Re-encode DigestInto in DER and check against the original when 7772 verifying RSA signature: this will reject any improperly encoded 7773 DigestInfo structures. 7774 7775 Note: this is a precautionary measure and no attacks are currently known. 7776 7777 *Steve Henson* 7778 7779### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7780 7781 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7782 SRP code can be overrun an internal buffer. Add sanity check that 7783 g, A, B < N to SRP code. 7784 7785 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7786 Group for discovering this issue. 7787 ([CVE-2014-3512]) 7788 7789 *Steve Henson* 7790 7791 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7792 TLS 1.0 instead of higher protocol versions when the ClientHello message 7793 is badly fragmented. This allows a man-in-the-middle attacker to force a 7794 downgrade to TLS 1.0 even if both the server and the client support a 7795 higher protocol version, by modifying the client's TLS records. 7796 7797 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7798 researching this issue. 7799 ([CVE-2014-3511]) 7800 7801 *David Benjamin* 7802 7803 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7804 to a denial of service attack. A malicious server can crash the client 7805 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7806 ciphersuite and sending carefully crafted handshake messages. 7807 7808 Thanks to Felix Gröbert (Google) for discovering and researching this 7809 issue. 7810 ([CVE-2014-3510]) 7811 7812 *Emilia Käsper* 7813 7814 * By sending carefully crafted DTLS packets an attacker could cause openssl 7815 to leak memory. This can be exploited through a Denial of Service attack. 7816 Thanks to Adam Langley for discovering and researching this issue. 7817 ([CVE-2014-3507]) 7818 7819 *Adam Langley* 7820 7821 * An attacker can force openssl to consume large amounts of memory whilst 7822 processing DTLS handshake messages. This can be exploited through a 7823 Denial of Service attack. 7824 Thanks to Adam Langley for discovering and researching this issue. 7825 ([CVE-2014-3506]) 7826 7827 *Adam Langley* 7828 7829 * An attacker can force an error condition which causes openssl to crash 7830 whilst processing DTLS packets due to memory being freed twice. This 7831 can be exploited through a Denial of Service attack. 7832 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7833 this issue. 7834 ([CVE-2014-3505]) 7835 7836 *Adam Langley* 7837 7838 * If a multithreaded client connects to a malicious server using a resumed 7839 session and the server sends an ec point format extension it could write 7840 up to 255 bytes to freed memory. 7841 7842 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7843 issue. 7844 ([CVE-2014-3509]) 7845 7846 *Gabor Tyukasz* 7847 7848 * A malicious server can crash an OpenSSL client with a null pointer 7849 dereference (read) by specifying an SRP ciphersuite even though it was not 7850 properly negotiated with the client. This can be exploited through a 7851 Denial of Service attack. 7852 7853 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7854 discovering and researching this issue. 7855 ([CVE-2014-5139]) 7856 7857 *Steve Henson* 7858 7859 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7860 X509_name_oneline, X509_name_print_ex et al. to leak some information 7861 from the stack. Applications may be affected if they echo pretty printing 7862 output to the attacker. 7863 7864 Thanks to Ivan Fratric (Google) for discovering this issue. 7865 ([CVE-2014-3508]) 7866 7867 *Emilia Käsper, and Steve Henson* 7868 7869 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7870 for corner cases. (Certain input points at infinity could lead to 7871 bogus results, with non-infinity inputs mapped to infinity too.) 7872 7873 *Bodo Moeller* 7874 7875### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7876 7877 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7878 handshake can force the use of weak keying material in OpenSSL 7879 SSL/TLS clients and servers. 7880 7881 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7882 researching this issue. ([CVE-2014-0224]) 7883 7884 *KIKUCHI Masashi, Steve Henson* 7885 7886 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7887 OpenSSL DTLS client the code can be made to recurse eventually crashing 7888 in a DoS attack. 7889 7890 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7891 ([CVE-2014-0221]) 7892 7893 *Imre Rad, Steve Henson* 7894 7895 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7896 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7897 client or server. This is potentially exploitable to run arbitrary 7898 code on a vulnerable client or server. 7899 7900 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7901 7902 *Jüri Aedla, Steve Henson* 7903 7904 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7905 are subject to a denial of service attack. 7906 7907 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7908 this issue. ([CVE-2014-3470]) 7909 7910 *Felix Gröbert, Ivan Fratric, Steve Henson* 7911 7912 * Harmonize version and its documentation. -f flag is used to display 7913 compilation flags. 7914 7915 *mancha <mancha1@zoho.com>* 7916 7917 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7918 in i2d_ECPrivateKey. 7919 7920 *mancha <mancha1@zoho.com>* 7921 7922 * Fix some double frees. These are not thought to be exploitable. 7923 7924 *mancha <mancha1@zoho.com>* 7925 7926### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7927 7928 * A missing bounds check in the handling of the TLS heartbeat extension 7929 can be used to reveal up to 64k of memory to a connected client or 7930 server. 7931 7932 Thanks for Neel Mehta of Google Security for discovering this bug and to 7933 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7934 preparing the fix ([CVE-2014-0160]) 7935 7936 *Adam Langley, Bodo Moeller* 7937 7938 * Fix for the attack described in the paper "Recovering OpenSSL 7939 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7940 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7941 <http://eprint.iacr.org/2014/140> 7942 7943 Thanks to Yuval Yarom and Naomi Benger for discovering this 7944 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7945 7946 *Yuval Yarom and Naomi Benger* 7947 7948 * TLS pad extension: draft-agl-tls-padding-03 7949 7950 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7951 TLS client Hello record length value would otherwise be > 255 and 7952 less that 512 pad with a dummy extension containing zeroes so it 7953 is at least 512 bytes long. 7954 7955 *Adam Langley, Steve Henson* 7956 7957### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7958 7959 * Fix for TLS record tampering bug. A carefully crafted invalid 7960 handshake could crash OpenSSL with a NULL pointer exception. 7961 Thanks to Anton Johansson for reporting this issues. 7962 ([CVE-2013-4353]) 7963 7964 * Keep original DTLS digest and encryption contexts in retransmission 7965 structures so we can use the previous session parameters if they need 7966 to be resent. ([CVE-2013-6450]) 7967 7968 *Steve Henson* 7969 7970 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 7971 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 7972 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 7973 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 7974 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 7975 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 7976 7977 *Rob Stradling, Adam Langley* 7978 7979### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 7980 7981 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 7982 supporting platforms or when small records were transferred. 7983 7984 *Andy Polyakov, Steve Henson* 7985 7986### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 7987 7988 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 7989 7990 This addresses the flaw in CBC record processing discovered by 7991 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 7992 at: <http://www.isg.rhul.ac.uk/tls/> 7993 7994 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 7995 Security Group at Royal Holloway, University of London 7996 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 7997 Emilia Käsper for the initial patch. 7998 ([CVE-2013-0169]) 7999 8000 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8001 8002 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 8003 ciphersuites which can be exploited in a denial of service attack. 8004 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 8005 and detecting this bug and to Wolfgang Ettlinger 8006 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 8007 ([CVE-2012-2686]) 8008 8009 *Adam Langley* 8010 8011 * Return an error when checking OCSP signatures when key is NULL. 8012 This fixes a DoS attack. ([CVE-2013-0166]) 8013 8014 *Steve Henson* 8015 8016 * Make openssl verify return errors. 8017 8018 *Chris Palmer <palmer@google.com> and Ben Laurie* 8019 8020 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8021 the right response is stapled. Also change SSL_get_certificate() 8022 so it returns the certificate actually sent. 8023 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8024 8025 *Rob Stradling <rob.stradling@comodo.com>* 8026 8027 * Fix possible deadlock when decoding public keys. 8028 8029 *Steve Henson* 8030 8031 * Don't use TLS 1.0 record version number in initial client hello 8032 if renegotiating. 8033 8034 *Steve Henson* 8035 8036### Changes between 1.0.1b and 1.0.1c [10 May 2012] 8037 8038 * Sanity check record length before skipping explicit IV in TLS 8039 1.2, 1.1 and DTLS to fix DoS attack. 8040 8041 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8042 fuzzing as a service testing platform. 8043 ([CVE-2012-2333]) 8044 8045 *Steve Henson* 8046 8047 * Initialise tkeylen properly when encrypting CMS messages. 8048 Thanks to Solar Designer of Openwall for reporting this issue. 8049 8050 *Steve Henson* 8051 8052 * In FIPS mode don't try to use composite ciphers as they are not 8053 approved. 8054 8055 *Steve Henson* 8056 8057### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 8058 8059 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 8060 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 8061 mean any application compiled against OpenSSL 1.0.0 headers setting 8062 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 8063 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 8064 0x10000000L Any application which was previously compiled against 8065 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 8066 will need to be recompiled as a result. Letting be results in 8067 inability to disable specifically TLS 1.1 and in client context, 8068 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 8069 8070 *Steve Henson* 8071 8072 * In order to ensure interoperability SSL_OP_NO_protocolX does not 8073 disable just protocol X, but all protocols above X *if* there are 8074 protocols *below* X still enabled. In more practical terms it means 8075 that if application wants to disable TLS1.0 in favor of TLS1.1 and 8076 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 8077 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 8078 client side. 8079 8080 *Andy Polyakov* 8081 8082### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 8083 8084 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8085 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8086 in CRYPTO_realloc_clean. 8087 8088 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8089 issue and to Adam Langley <agl@chromium.org> for fixing it. 8090 ([CVE-2012-2110]) 8091 8092 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8093 8094 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 8095 8096 *Adam Langley* 8097 8098 * Workarounds for some broken servers that "hang" if a client hello 8099 record length exceeds 255 bytes. 8100 8101 1. Do not use record version number > TLS 1.0 in initial client 8102 hello: some (but not all) hanging servers will now work. 8103 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 8104 the number of ciphers sent in the client hello. This should be 8105 set to an even number, such as 50, for example by passing: 8106 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 8107 Most broken servers should now work. 8108 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 8109 TLS 1.2 client support entirely. 8110 8111 *Steve Henson* 8112 8113 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 8114 8115 *Andy Polyakov* 8116 8117### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 8118 8119 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 8120 STRING form instead of a DigestInfo. 8121 8122 *Steve Henson* 8123 8124 * The format used for MDC2 RSA signatures is inconsistent between EVP 8125 and the RSA_sign/RSA_verify functions. This was made more apparent when 8126 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 8127 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 8128 the correct format in RSA_verify so both forms transparently work. 8129 8130 *Steve Henson* 8131 8132 * Some servers which support TLS 1.0 can choke if we initially indicate 8133 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 8134 encrypted premaster secret. As a workaround use the maximum permitted 8135 client version in client hello, this should keep such servers happy 8136 and still work with previous versions of OpenSSL. 8137 8138 *Steve Henson* 8139 8140 * Add support for TLS/DTLS heartbeats. 8141 8142 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8143 8144 * Add support for SCTP. 8145 8146 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8147 8148 * Improved PRNG seeding for VOS. 8149 8150 *Paul Green <Paul.Green@stratus.com>* 8151 8152 * Extensive assembler packs updates, most notably: 8153 8154 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 8155 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 8156 - x86_64: bit-sliced AES implementation; 8157 - ARM: NEON support, contemporary platforms optimizations; 8158 - s390x: z196 support; 8159 - `*`: GHASH and GF(2^m) multiplication implementations; 8160 8161 *Andy Polyakov* 8162 8163 * Make TLS-SRP code conformant with RFC 5054 API cleanup 8164 (removal of unnecessary code) 8165 8166 *Peter Sylvester <peter.sylvester@edelweb.fr>* 8167 8168 * Add TLS key material exporter from RFC 5705. 8169 8170 *Eric Rescorla* 8171 8172 * Add DTLS-SRTP negotiation from RFC 5764. 8173 8174 *Eric Rescorla* 8175 8176 * Add Next Protocol Negotiation, 8177 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 8178 disabled with a no-npn flag to config or Configure. Code donated 8179 by Google. 8180 8181 *Adam Langley <agl@google.com> and Ben Laurie* 8182 8183 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 8184 NIST-P256, NIST-P521, with constant-time single point multiplication on 8185 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 8186 required to use this (present in gcc 4.4 and later, for 64-bit builds). 8187 Code made available under Apache License version 2.0. 8188 8189 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 8190 line to include this in your build of OpenSSL, and run "make depend" (or 8191 "make update"). This enables the following EC_METHODs: 8192 8193 EC_GFp_nistp224_method() 8194 EC_GFp_nistp256_method() 8195 EC_GFp_nistp521_method() 8196 8197 EC_GROUP_new_by_curve_name() will automatically use these (while 8198 EC_GROUP_new_curve_GFp() currently prefers the more flexible 8199 implementations). 8200 8201 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 8202 8203 * Use type ossl_ssize_t instead of ssize_t which isn't available on 8204 all platforms. Move ssize_t definition from e_os.h to the public 8205 header file e_os2.h as it now appears in public header file cms.h 8206 8207 *Steve Henson* 8208 8209 * New -sigopt option to the ca, req and x509 utilities. Additional 8210 signature parameters can be passed using this option and in 8211 particular PSS. 8212 8213 *Steve Henson* 8214 8215 * Add RSA PSS signing function. This will generate and set the 8216 appropriate AlgorithmIdentifiers for PSS based on those in the 8217 corresponding EVP_MD_CTX structure. No application support yet. 8218 8219 *Steve Henson* 8220 8221 * Support for companion algorithm specific ASN1 signing routines. 8222 New function ASN1_item_sign_ctx() signs a pre-initialised 8223 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 8224 the appropriate parameters. 8225 8226 *Steve Henson* 8227 8228 * Add new algorithm specific ASN1 verification initialisation function 8229 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 8230 handling will be the same no matter what EVP_PKEY_METHOD is used. 8231 Add a PSS handler to support verification of PSS signatures: checked 8232 against a number of sample certificates. 8233 8234 *Steve Henson* 8235 8236 * Add signature printing for PSS. Add PSS OIDs. 8237 8238 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 8239 8240 * Add algorithm specific signature printing. An individual ASN1 method 8241 can now print out signatures instead of the standard hex dump. 8242 8243 More complex signatures (e.g. PSS) can print out more meaningful 8244 information. Include DSA version that prints out the signature 8245 parameters r, s. 8246 8247 *Steve Henson* 8248 8249 * Password based recipient info support for CMS library: implementing 8250 RFC3211. 8251 8252 *Steve Henson* 8253 8254 * Split password based encryption into PBES2 and PBKDF2 functions. This 8255 neatly separates the code into cipher and PBE sections and is required 8256 for some algorithms that split PBES2 into separate pieces (such as 8257 password based CMS). 8258 8259 *Steve Henson* 8260 8261 * Session-handling fixes: 8262 - Fix handling of connections that are resuming with a session ID, 8263 but also support Session Tickets. 8264 - Fix a bug that suppressed issuing of a new ticket if the client 8265 presented a ticket with an expired session. 8266 - Try to set the ticket lifetime hint to something reasonable. 8267 - Make tickets shorter by excluding irrelevant information. 8268 - On the client side, don't ignore renewed tickets. 8269 8270 *Adam Langley, Bodo Moeller (Google)* 8271 8272 * Fix PSK session representation. 8273 8274 *Bodo Moeller* 8275 8276 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 8277 8278 This work was sponsored by Intel. 8279 8280 *Andy Polyakov* 8281 8282 * Add GCM support to TLS library. Some custom code is needed to split 8283 the IV between the fixed (from PRF) and explicit (from TLS record) 8284 portions. This adds all GCM ciphersuites supported by RFC5288 and 8285 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 8286 add a special AESGCM string for GCM only. 8287 8288 *Steve Henson* 8289 8290 * Expand range of ctrls for AES GCM. Permit setting invocation 8291 field on decrypt and retrieval of invocation field only on encrypt. 8292 8293 *Steve Henson* 8294 8295 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 8296 As required by RFC5289 these ciphersuites cannot be used if for 8297 versions of TLS earlier than 1.2. 8298 8299 *Steve Henson* 8300 8301 * For FIPS capable OpenSSL interpret a NULL default public key method 8302 as unset and return the appropriate default but do *not* set the default. 8303 This means we can return the appropriate method in applications that 8304 switch between FIPS and non-FIPS modes. 8305 8306 *Steve Henson* 8307 8308 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 8309 ENGINE is used then we cannot handle that in the FIPS module so we 8310 keep original code iff non-FIPS operations are allowed. 8311 8312 *Steve Henson* 8313 8314 * Add -attime option to openssl utilities. 8315 8316 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 8317 8318 * Redirect DSA and DH operations to FIPS module in FIPS mode. 8319 8320 *Steve Henson* 8321 8322 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 8323 FIPS EC methods unconditionally for now. 8324 8325 *Steve Henson* 8326 8327 * New build option no-ec2m to disable characteristic 2 code. 8328 8329 *Steve Henson* 8330 8331 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 8332 all cases can be covered as some introduce binary incompatibilities. 8333 8334 *Steve Henson* 8335 8336 * Redirect RSA operations to FIPS module including keygen, 8337 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 8338 8339 *Steve Henson* 8340 8341 * Add similar low-level API blocking to ciphers. 8342 8343 *Steve Henson* 8344 8345 * low-level digest APIs are not approved in FIPS mode: any attempt 8346 to use these will cause a fatal error. Applications that *really* want 8347 to use them can use the `private_*` version instead. 8348 8349 *Steve Henson* 8350 8351 * Redirect cipher operations to FIPS module for FIPS builds. 8352 8353 *Steve Henson* 8354 8355 * Redirect digest operations to FIPS module for FIPS builds. 8356 8357 *Steve Henson* 8358 8359 * Update build system to add "fips" flag which will link in fipscanister.o 8360 for static and shared library builds embedding a signature if needed. 8361 8362 *Steve Henson* 8363 8364 * Output TLS supported curves in preference order instead of numerical 8365 order. This is currently hardcoded for the highest order curves first. 8366 This should be configurable so applications can judge speed vs strength. 8367 8368 *Steve Henson* 8369 8370 * Add TLS v1.2 server support for client authentication. 8371 8372 *Steve Henson* 8373 8374 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8375 and enable MD5. 8376 8377 *Steve Henson* 8378 8379 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8380 FIPS modules versions. 8381 8382 *Steve Henson* 8383 8384 * Add TLS v1.2 client side support for client authentication. Keep cache 8385 of handshake records longer as we don't know the hash algorithm to use 8386 until after the certificate request message is received. 8387 8388 *Steve Henson* 8389 8390 * Initial TLS v1.2 client support. Add a default signature algorithms 8391 extension including all the algorithms we support. Parse new signature 8392 format in client key exchange. Relax some ECC signing restrictions for 8393 TLS v1.2 as indicated in RFC5246. 8394 8395 *Steve Henson* 8396 8397 * Add server support for TLS v1.2 signature algorithms extension. Switch 8398 to new signature format when needed using client digest preference. 8399 All server ciphersuites should now work correctly in TLS v1.2. No client 8400 support yet and no support for client certificates. 8401 8402 *Steve Henson* 8403 8404 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8405 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8406 ciphersuites. At present only RSA key exchange ciphersuites work with 8407 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8408 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8409 and version checking. 8410 8411 *Steve Henson* 8412 8413 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8414 with this defined it will not be affected by any changes to ssl internal 8415 structures. Add several utility functions to allow openssl application 8416 to work with OPENSSL_NO_SSL_INTERN defined. 8417 8418 *Steve Henson* 8419 8420 * A long standing patch to add support for SRP from EdelWeb (Peter 8421 Sylvester and Christophe Renou) was integrated. 8422 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8423 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8424 Ben Laurie* 8425 8426 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8427 8428 *Steve Henson* 8429 8430 * Permit abbreviated handshakes when renegotiating using the function 8431 SSL_renegotiate_abbreviated(). 8432 8433 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8434 8435 * Add call to ENGINE_register_all_complete() to 8436 ENGINE_load_builtin_engines(), so some implementations get used 8437 automatically instead of needing explicit application support. 8438 8439 *Steve Henson* 8440 8441 * Add support for TLS key exporter as described in RFC5705. 8442 8443 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8444 8445 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8446 a few changes are required: 8447 8448 Add SSL_OP_NO_TLSv1_1 flag. 8449 Add TLSv1_1 methods. 8450 Update version checking logic to handle version 1.1. 8451 Add explicit IV handling (ported from DTLS code). 8452 Add command line options to s_client/s_server. 8453 8454 *Steve Henson* 8455 8456OpenSSL 1.0.0 8457------------- 8458 8459### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8460 8461 * X509_ATTRIBUTE memory leak 8462 8463 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8464 memory. This structure is used by the PKCS#7 and CMS routines so any 8465 application which reads PKCS#7 or CMS data from untrusted sources is 8466 affected. SSL/TLS is not affected. 8467 8468 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8469 libFuzzer. 8470 ([CVE-2015-3195]) 8471 8472 *Stephen Henson* 8473 8474 * Race condition handling PSK identify hint 8475 8476 If PSK identity hints are received by a multi-threaded client then 8477 the values are wrongly updated in the parent SSL_CTX structure. This can 8478 result in a race condition potentially leading to a double free of the 8479 identify hint data. 8480 ([CVE-2015-3196]) 8481 8482 *Stephen Henson* 8483 8484### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8485 8486 * Malformed ECParameters causes infinite loop 8487 8488 When processing an ECParameters structure OpenSSL enters an infinite loop 8489 if the curve specified is over a specially malformed binary polynomial 8490 field. 8491 8492 This can be used to perform denial of service against any 8493 system which processes public keys, certificate requests or 8494 certificates. This includes TLS clients and TLS servers with 8495 client authentication enabled. 8496 8497 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8498 ([CVE-2015-1788]) 8499 8500 *Andy Polyakov* 8501 8502 * Exploitable out-of-bounds read in X509_cmp_time 8503 8504 X509_cmp_time does not properly check the length of the ASN1_TIME 8505 string and can read a few bytes out of bounds. In addition, 8506 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8507 time string. 8508 8509 An attacker can use this to craft malformed certificates and CRLs of 8510 various sizes and potentially cause a segmentation fault, resulting in 8511 a DoS on applications that verify certificates or CRLs. TLS clients 8512 that verify CRLs are affected. TLS clients and servers with client 8513 authentication enabled may be affected if they use custom verification 8514 callbacks. 8515 8516 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8517 independently by Hanno Böck. 8518 ([CVE-2015-1789]) 8519 8520 *Emilia Käsper* 8521 8522 * PKCS7 crash with missing EnvelopedContent 8523 8524 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8525 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8526 with missing content and trigger a NULL pointer dereference on parsing. 8527 8528 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8529 structures from untrusted sources are affected. OpenSSL clients and 8530 servers are not affected. 8531 8532 This issue was reported to OpenSSL by Michal Zalewski (Google). 8533 ([CVE-2015-1790]) 8534 8535 *Emilia Käsper* 8536 8537 * CMS verify infinite loop with unknown hash function 8538 8539 When verifying a signedData message the CMS code can enter an infinite loop 8540 if presented with an unknown hash function OID. This can be used to perform 8541 denial of service against any system which verifies signedData messages using 8542 the CMS code. 8543 This issue was reported to OpenSSL by Johannes Bauer. 8544 ([CVE-2015-1792]) 8545 8546 *Stephen Henson* 8547 8548 * Race condition handling NewSessionTicket 8549 8550 If a NewSessionTicket is received by a multi-threaded client when attempting to 8551 reuse a previous ticket then a race condition can occur potentially leading to 8552 a double free of the ticket data. 8553 ([CVE-2015-1791]) 8554 8555 *Matt Caswell* 8556 8557### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8558 8559 * Segmentation fault in ASN1_TYPE_cmp fix 8560 8561 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8562 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8563 certificate signature algorithm consistency this can be used to crash any 8564 certificate verification operation and exploited in a DoS attack. Any 8565 application which performs certificate verification is vulnerable including 8566 OpenSSL clients and servers which enable client authentication. 8567 ([CVE-2015-0286]) 8568 8569 *Stephen Henson* 8570 8571 * ASN.1 structure reuse memory corruption fix 8572 8573 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8574 memory corruption via an invalid write. Such reuse is and has been 8575 strongly discouraged and is believed to be rare. 8576 8577 Applications that parse structures containing CHOICE or ANY DEFINED BY 8578 components may be affected. Certificate parsing (d2i_X509 and related 8579 functions) are however not affected. OpenSSL clients and servers are 8580 not affected. 8581 ([CVE-2015-0287]) 8582 8583 *Stephen Henson* 8584 8585 * PKCS7 NULL pointer dereferences fix 8586 8587 The PKCS#7 parsing code does not handle missing outer ContentInfo 8588 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8589 missing content and trigger a NULL pointer dereference on parsing. 8590 8591 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8592 otherwise parse PKCS#7 structures from untrusted sources are 8593 affected. OpenSSL clients and servers are not affected. 8594 8595 This issue was reported to OpenSSL by Michal Zalewski (Google). 8596 ([CVE-2015-0289]) 8597 8598 *Emilia Käsper* 8599 8600 * DoS via reachable assert in SSLv2 servers fix 8601 8602 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8603 servers that both support SSLv2 and enable export cipher suites by sending 8604 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8605 8606 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8607 (OpenSSL development team). 8608 ([CVE-2015-0293]) 8609 8610 *Emilia Käsper* 8611 8612 * Use After Free following d2i_ECPrivatekey error fix 8613 8614 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8615 could cause a use after free condition. This, in turn, could cause a double 8616 free in several private key parsing functions (such as d2i_PrivateKey 8617 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8618 for applications that receive EC private keys from untrusted 8619 sources. This scenario is considered rare. 8620 8621 This issue was discovered by the BoringSSL project and fixed in their 8622 commit 517073cd4b. 8623 ([CVE-2015-0209]) 8624 8625 *Matt Caswell* 8626 8627 * X509_to_X509_REQ NULL pointer deref fix 8628 8629 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8630 the certificate key is invalid. This function is rarely used in practice. 8631 8632 This issue was discovered by Brian Carpenter. 8633 ([CVE-2015-0288]) 8634 8635 *Stephen Henson* 8636 8637 * Removed the export ciphers from the DEFAULT ciphers 8638 8639 *Kurt Roeckx* 8640 8641### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8642 8643 * Build fixes for the Windows and OpenVMS platforms 8644 8645 *Matt Caswell and Richard Levitte* 8646 8647### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8648 8649 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8650 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8651 dereference. This could lead to a Denial Of Service attack. Thanks to 8652 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8653 ([CVE-2014-3571]) 8654 8655 *Steve Henson* 8656 8657 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8658 dtls1_buffer_record function under certain conditions. In particular this 8659 could occur if an attacker sent repeated DTLS records with the same 8660 sequence number but for the next epoch. The memory leak could be exploited 8661 by an attacker in a Denial of Service attack through memory exhaustion. 8662 Thanks to Chris Mueller for reporting this issue. 8663 ([CVE-2015-0206]) 8664 8665 *Matt Caswell* 8666 8667 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8668 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8669 method would be set to NULL which could later result in a NULL pointer 8670 dereference. Thanks to Frank Schmirler for reporting this issue. 8671 ([CVE-2014-3569]) 8672 8673 *Kurt Roeckx* 8674 8675 * Abort handshake if server key exchange message is omitted for ephemeral 8676 ECDH ciphersuites. 8677 8678 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8679 reporting this issue. 8680 ([CVE-2014-3572]) 8681 8682 *Steve Henson* 8683 8684 * Remove non-export ephemeral RSA code on client and server. This code 8685 violated the TLS standard by allowing the use of temporary RSA keys in 8686 non-export ciphersuites and could be used by a server to effectively 8687 downgrade the RSA key length used to a value smaller than the server 8688 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8689 INRIA or reporting this issue. 8690 ([CVE-2015-0204]) 8691 8692 *Steve Henson* 8693 8694 * Fixed issue where DH client certificates are accepted without verification. 8695 An OpenSSL server will accept a DH certificate for client authentication 8696 without the certificate verify message. This effectively allows a client to 8697 authenticate without the use of a private key. This only affects servers 8698 which trust a client certificate authority which issues certificates 8699 containing DH keys: these are extremely rare and hardly ever encountered. 8700 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8701 this issue. 8702 ([CVE-2015-0205]) 8703 8704 *Steve Henson* 8705 8706 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8707 results on some platforms, including x86_64. This bug occurs at random 8708 with a very low probability, and is not known to be exploitable in any 8709 way, though its exact impact is difficult to determine. Thanks to Pieter 8710 Wuille (Blockstream) who reported this issue and also suggested an initial 8711 fix. Further analysis was conducted by the OpenSSL development team and 8712 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8713 the OpenSSL core team. 8714 ([CVE-2014-3570]) 8715 8716 *Andy Polyakov* 8717 8718 * Fix various certificate fingerprint issues. 8719 8720 By using non-DER or invalid encodings outside the signed portion of a 8721 certificate the fingerprint can be changed without breaking the signature. 8722 Although no details of the signed portion of the certificate can be changed 8723 this can cause problems with some applications: e.g. those using the 8724 certificate fingerprint for blacklists. 8725 8726 1. Reject signatures with non zero unused bits. 8727 8728 If the BIT STRING containing the signature has non zero unused bits reject 8729 the signature. All current signature algorithms require zero unused bits. 8730 8731 2. Check certificate algorithm consistency. 8732 8733 Check the AlgorithmIdentifier inside TBS matches the one in the 8734 certificate signature. NB: this will result in signature failure 8735 errors for some broken certificates. 8736 8737 Thanks to Konrad Kraszewski from Google for reporting this issue. 8738 8739 3. Check DSA/ECDSA signatures use DER. 8740 8741 Reencode DSA/ECDSA signatures and compare with the original received 8742 signature. Return an error if there is a mismatch. 8743 8744 This will reject various cases including garbage after signature 8745 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8746 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8747 (negative or with leading zeroes). 8748 8749 Further analysis was conducted and fixes were developed by Stephen Henson 8750 of the OpenSSL core team. 8751 8752 ([CVE-2014-8275]) 8753 8754 *Steve Henson* 8755 8756### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8757 8758 * Session Ticket Memory Leak. 8759 8760 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8761 integrity of that ticket is first verified. In the event of a session 8762 ticket integrity check failing, OpenSSL will fail to free memory 8763 causing a memory leak. By sending a large number of invalid session 8764 tickets an attacker could exploit this issue in a Denial Of Service 8765 attack. 8766 ([CVE-2014-3567]) 8767 8768 *Steve Henson* 8769 8770 * Build option no-ssl3 is incomplete. 8771 8772 When OpenSSL is configured with "no-ssl3" as a build option, servers 8773 could accept and complete a SSL 3.0 handshake, and clients could be 8774 configured to send them. 8775 ([CVE-2014-3568]) 8776 8777 *Akamai and the OpenSSL team* 8778 8779 * Add support for TLS_FALLBACK_SCSV. 8780 Client applications doing fallback retries should call 8781 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8782 ([CVE-2014-3566]) 8783 8784 *Adam Langley, Bodo Moeller* 8785 8786 * Add additional DigestInfo checks. 8787 8788 Reencode DigestInto in DER and check against the original when 8789 verifying RSA signature: this will reject any improperly encoded 8790 DigestInfo structures. 8791 8792 Note: this is a precautionary measure and no attacks are currently known. 8793 8794 *Steve Henson* 8795 8796### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8797 8798 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8799 to a denial of service attack. A malicious server can crash the client 8800 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8801 ciphersuite and sending carefully crafted handshake messages. 8802 8803 Thanks to Felix Gröbert (Google) for discovering and researching this 8804 issue. 8805 ([CVE-2014-3510]) 8806 8807 *Emilia Käsper* 8808 8809 * By sending carefully crafted DTLS packets an attacker could cause openssl 8810 to leak memory. This can be exploited through a Denial of Service attack. 8811 Thanks to Adam Langley for discovering and researching this issue. 8812 ([CVE-2014-3507]) 8813 8814 *Adam Langley* 8815 8816 * An attacker can force openssl to consume large amounts of memory whilst 8817 processing DTLS handshake messages. This can be exploited through a 8818 Denial of Service attack. 8819 Thanks to Adam Langley for discovering and researching this issue. 8820 ([CVE-2014-3506]) 8821 8822 *Adam Langley* 8823 8824 * An attacker can force an error condition which causes openssl to crash 8825 whilst processing DTLS packets due to memory being freed twice. This 8826 can be exploited through a Denial of Service attack. 8827 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8828 this issue. 8829 ([CVE-2014-3505]) 8830 8831 *Adam Langley* 8832 8833 * If a multithreaded client connects to a malicious server using a resumed 8834 session and the server sends an ec point format extension it could write 8835 up to 255 bytes to freed memory. 8836 8837 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8838 issue. 8839 ([CVE-2014-3509]) 8840 8841 *Gabor Tyukasz* 8842 8843 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8844 X509_name_oneline, X509_name_print_ex et al. to leak some information 8845 from the stack. Applications may be affected if they echo pretty printing 8846 output to the attacker. 8847 8848 Thanks to Ivan Fratric (Google) for discovering this issue. 8849 ([CVE-2014-3508]) 8850 8851 *Emilia Käsper, and Steve Henson* 8852 8853 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8854 for corner cases. (Certain input points at infinity could lead to 8855 bogus results, with non-infinity inputs mapped to infinity too.) 8856 8857 *Bodo Moeller* 8858 8859### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8860 8861 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8862 handshake can force the use of weak keying material in OpenSSL 8863 SSL/TLS clients and servers. 8864 8865 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8866 researching this issue. ([CVE-2014-0224]) 8867 8868 *KIKUCHI Masashi, Steve Henson* 8869 8870 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8871 OpenSSL DTLS client the code can be made to recurse eventually crashing 8872 in a DoS attack. 8873 8874 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8875 ([CVE-2014-0221]) 8876 8877 *Imre Rad, Steve Henson* 8878 8879 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8880 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8881 client or server. This is potentially exploitable to run arbitrary 8882 code on a vulnerable client or server. 8883 8884 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8885 8886 *Jüri Aedla, Steve Henson* 8887 8888 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8889 are subject to a denial of service attack. 8890 8891 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8892 this issue. ([CVE-2014-3470]) 8893 8894 *Felix Gröbert, Ivan Fratric, Steve Henson* 8895 8896 * Harmonize version and its documentation. -f flag is used to display 8897 compilation flags. 8898 8899 *mancha <mancha1@zoho.com>* 8900 8901 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8902 in i2d_ECPrivateKey. 8903 8904 *mancha <mancha1@zoho.com>* 8905 8906 * Fix some double frees. These are not thought to be exploitable. 8907 8908 *mancha <mancha1@zoho.com>* 8909 8910 * Fix for the attack described in the paper "Recovering OpenSSL 8911 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8912 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8913 <http://eprint.iacr.org/2014/140> 8914 8915 Thanks to Yuval Yarom and Naomi Benger for discovering this 8916 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8917 8918 *Yuval Yarom and Naomi Benger* 8919 8920### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8921 8922 * Keep original DTLS digest and encryption contexts in retransmission 8923 structures so we can use the previous session parameters if they need 8924 to be resent. ([CVE-2013-6450]) 8925 8926 *Steve Henson* 8927 8928 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8929 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8930 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8931 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8932 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8933 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8934 8935 *Rob Stradling, Adam Langley* 8936 8937### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8938 8939 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8940 8941 This addresses the flaw in CBC record processing discovered by 8942 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8943 at: <http://www.isg.rhul.ac.uk/tls/> 8944 8945 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8946 Security Group at Royal Holloway, University of London 8947 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8948 Emilia Käsper for the initial patch. 8949 ([CVE-2013-0169]) 8950 8951 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8952 8953 * Return an error when checking OCSP signatures when key is NULL. 8954 This fixes a DoS attack. ([CVE-2013-0166]) 8955 8956 *Steve Henson* 8957 8958 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8959 the right response is stapled. Also change SSL_get_certificate() 8960 so it returns the certificate actually sent. 8961 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8962 (This is a backport) 8963 8964 *Rob Stradling <rob.stradling@comodo.com>* 8965 8966 * Fix possible deadlock when decoding public keys. 8967 8968 *Steve Henson* 8969 8970### Changes between 1.0.0i and 1.0.0j [10 May 2012] 8971 8972[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 8973OpenSSL 1.0.1.] 8974 8975 * Sanity check record length before skipping explicit IV in DTLS 8976 to fix DoS attack. 8977 8978 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8979 fuzzing as a service testing platform. 8980 ([CVE-2012-2333]) 8981 8982 *Steve Henson* 8983 8984 * Initialise tkeylen properly when encrypting CMS messages. 8985 Thanks to Solar Designer of Openwall for reporting this issue. 8986 8987 *Steve Henson* 8988 8989### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 8990 8991 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8992 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8993 in CRYPTO_realloc_clean. 8994 8995 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8996 issue and to Adam Langley <agl@chromium.org> for fixing it. 8997 ([CVE-2012-2110]) 8998 8999 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 9000 9001### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 9002 9003 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 9004 in CMS and PKCS7 code. When RSA decryption fails use a random key for 9005 content decryption and always return the same error. Note: this attack 9006 needs on average 2^20 messages so it only affects automated senders. The 9007 old behaviour can be re-enabled in the CMS code by setting the 9008 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 9009 an MMA defence is not necessary. 9010 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 9011 this issue. ([CVE-2012-0884]) 9012 9013 *Steve Henson* 9014 9015 * Fix CVE-2011-4619: make sure we really are receiving a 9016 client hello before rejecting multiple SGC restarts. Thanks to 9017 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 9018 9019 *Steve Henson* 9020 9021### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 9022 9023 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 9024 Thanks to Antonio Martin, Enterprise Secure Access Research and 9025 Development, Cisco Systems, Inc. for discovering this bug and 9026 preparing a fix. ([CVE-2012-0050]) 9027 9028 *Antonio Martin* 9029 9030### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 9031 9032 * Nadhem Alfardan and Kenny Paterson have discovered an extension 9033 of the Vaudenay padding oracle attack on CBC mode encryption 9034 which enables an efficient plaintext recovery attack against 9035 the OpenSSL implementation of DTLS. Their attack exploits timing 9036 differences arising during decryption processing. A research 9037 paper describing this attack can be found at: 9038 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 9039 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 9040 Security Group at Royal Holloway, University of London 9041 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 9042 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 9043 for preparing the fix. ([CVE-2011-4108]) 9044 9045 *Robin Seggelmann, Michael Tuexen* 9046 9047 * Clear bytes used for block padding of SSL 3.0 records. 9048 ([CVE-2011-4576]) 9049 9050 *Adam Langley (Google)* 9051 9052 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 9053 Kadianakis <desnacked@gmail.com> for discovering this issue and 9054 Adam Langley for preparing the fix. ([CVE-2011-4619]) 9055 9056 *Adam Langley (Google)* 9057 9058 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 9059 9060 *Andrey Kulikov <amdeich@gmail.com>* 9061 9062 * Prevent malformed RFC3779 data triggering an assertion failure. 9063 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 9064 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 9065 9066 *Rob Austein <sra@hactrn.net>* 9067 9068 * Improved PRNG seeding for VOS. 9069 9070 *Paul Green <Paul.Green@stratus.com>* 9071 9072 * Fix ssl_ciph.c set-up race. 9073 9074 *Adam Langley (Google)* 9075 9076 * Fix spurious failures in ecdsatest.c. 9077 9078 *Emilia Käsper (Google)* 9079 9080 * Fix the BIO_f_buffer() implementation (which was mixing different 9081 interpretations of the `..._len` fields). 9082 9083 *Adam Langley (Google)* 9084 9085 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 9086 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 9087 threads won't reuse the same blinding coefficients. 9088 9089 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 9090 lock to call BN_BLINDING_invert_ex, and avoids one use of 9091 BN_BLINDING_update for each BN_BLINDING structure (previously, 9092 the last update always remained unused). 9093 9094 *Emilia Käsper (Google)* 9095 9096 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 9097 9098 *Bob Buckholz (Google)* 9099 9100### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 9101 9102 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 9103 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 9104 9105 *Kaspar Brand <ossl@velox.ch>* 9106 9107 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 9108 for multi-threaded use of ECDH. ([CVE-2011-3210]) 9109 9110 *Adam Langley (Google)* 9111 9112 * Fix x509_name_ex_d2i memory leak on bad inputs. 9113 9114 *Bodo Moeller* 9115 9116 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 9117 signature public key algorithm by using OID xref utilities instead. 9118 Before this you could only use some ECC ciphersuites with SHA1 only. 9119 9120 *Steve Henson* 9121 9122 * Add protection against ECDSA timing attacks as mentioned in the paper 9123 by Billy Bob Brumley and Nicola Tuveri, see: 9124 <http://eprint.iacr.org/2011/232.pdf> 9125 9126 *Billy Bob Brumley and Nicola Tuveri* 9127 9128### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 9129 9130 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 9131 9132 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 9133 9134 * Fix bug in string printing code: if *any* escaping is enabled we must 9135 escape the escape character (backslash) or the resulting string is 9136 ambiguous. 9137 9138 *Steve Henson* 9139 9140### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 9141 9142 * Disable code workaround for ancient and obsolete Netscape browsers 9143 and servers: an attacker can use it in a ciphersuite downgrade attack. 9144 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 9145 9146 *Steve Henson* 9147 9148 * Fixed J-PAKE implementation error, originally discovered by 9149 Sebastien Martini, further info and confirmation from Stefan 9150 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 9151 9152 *Ben Laurie* 9153 9154### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 9155 9156 * Fix extension code to avoid race conditions which can result in a buffer 9157 overrun vulnerability: resumed sessions must not be modified as they can 9158 be shared by multiple threads. CVE-2010-3864 9159 9160 *Steve Henson* 9161 9162 * Fix WIN32 build system to correctly link an ENGINE directory into 9163 a DLL. 9164 9165 *Steve Henson* 9166 9167### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 9168 9169 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 9170 ([CVE-2010-1633]) 9171 9172 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 9173 9174### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 9175 9176 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 9177 context. The operation can be customised via the ctrl mechanism in 9178 case ENGINEs want to include additional functionality. 9179 9180 *Steve Henson* 9181 9182 * Tolerate yet another broken PKCS#8 key format: private key value negative. 9183 9184 *Steve Henson* 9185 9186 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 9187 output hashes compatible with older versions of OpenSSL. 9188 9189 *Willy Weisz <weisz@vcpc.univie.ac.at>* 9190 9191 * Fix compression algorithm handling: if resuming a session use the 9192 compression algorithm of the resumed session instead of determining 9193 it from client hello again. Don't allow server to change algorithm. 9194 9195 *Steve Henson* 9196 9197 * Add load_crls() function to commands tidying load_certs() too. Add option 9198 to verify utility to allow additional CRLs to be included. 9199 9200 *Steve Henson* 9201 9202 * Update OCSP request code to permit adding custom headers to the request: 9203 some responders need this. 9204 9205 *Steve Henson* 9206 9207 * The function EVP_PKEY_sign() returns <=0 on error: check return code 9208 correctly. 9209 9210 *Julia Lawall <julia@diku.dk>* 9211 9212 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 9213 needlessly dereferenced structures, used obsolete functions and 9214 didn't handle all updated verify codes correctly. 9215 9216 *Steve Henson* 9217 9218 * Disable MD2 in the default configuration. 9219 9220 *Steve Henson* 9221 9222 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 9223 indicate the initial BIO being pushed or popped. This makes it possible 9224 to determine whether the BIO is the one explicitly called or as a result 9225 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 9226 it handles reference counts correctly and doesn't zero out the I/O bio 9227 when it is not being explicitly popped. WARNING: applications which 9228 included workarounds for the old buggy behaviour will need to be modified 9229 or they could free up already freed BIOs. 9230 9231 *Steve Henson* 9232 9233 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 9234 renaming to all platforms (within the 0.9.8 branch, this was 9235 done conditionally on Netware platforms to avoid a name clash). 9236 9237 *Guenter <lists@gknw.net>* 9238 9239 * Add ECDHE and PSK support to DTLS. 9240 9241 *Michael Tuexen <tuexen@fh-muenster.de>* 9242 9243 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 9244 be used on C++. 9245 9246 *Steve Henson* 9247 9248 * Add "missing" function EVP_MD_flags() (without this the only way to 9249 retrieve a digest flags is by accessing the structure directly. Update 9250 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 9251 or cipher is registered as in the "from" argument. Print out all 9252 registered digests in the dgst usage message instead of manually 9253 attempting to work them out. 9254 9255 *Steve Henson* 9256 9257 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 9258 this allows the use of compression and extensions. Change default cipher 9259 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 9260 by default unless an application cipher string requests it. 9261 9262 *Steve Henson* 9263 9264 * Alter match criteria in PKCS12_parse(). It used to try to use local 9265 key ids to find matching certificates and keys but some PKCS#12 files 9266 don't follow the (somewhat unwritten) rules and this strategy fails. 9267 Now just gather all certificates together and the first private key 9268 then look for the first certificate that matches the key. 9269 9270 *Steve Henson* 9271 9272 * Support use of registered digest and cipher names for dgst and cipher 9273 commands instead of having to add each one as a special case. So now 9274 you can do: 9275 9276 openssl sha256 foo 9277 9278 as well as: 9279 9280 openssl dgst -sha256 foo 9281 9282 and this works for ENGINE based algorithms too. 9283 9284 *Steve Henson* 9285 9286 * Update Gost ENGINE to support parameter files. 9287 9288 *Victor B. Wagner <vitus@cryptocom.ru>* 9289 9290 * Support GeneralizedTime in ca utility. 9291 9292 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 9293 9294 * Enhance the hash format used for certificate directory links. The new 9295 form uses the canonical encoding (meaning equivalent names will work 9296 even if they aren't identical) and uses SHA1 instead of MD5. This form 9297 is incompatible with the older format and as a result c_rehash should 9298 be used to rebuild symbolic links. 9299 9300 *Steve Henson* 9301 9302 * Make PKCS#8 the default write format for private keys, replacing the 9303 traditional format. This form is standardised, more secure and doesn't 9304 include an implicit MD5 dependency. 9305 9306 *Steve Henson* 9307 9308 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 9309 committed to OpenSSL should pass this lot as a minimum. 9310 9311 *Steve Henson* 9312 9313 * Add session ticket override functionality for use by EAP-FAST. 9314 9315 *Jouni Malinen <j@w1.fi>* 9316 9317 * Modify HMAC functions to return a value. Since these can be implemented 9318 in an ENGINE errors can occur. 9319 9320 *Steve Henson* 9321 9322 * Type-checked OBJ_bsearch_ex. 9323 9324 *Ben Laurie* 9325 9326 * Type-checked OBJ_bsearch. Also some constification necessitated 9327 by type-checking. Still to come: TXT_DB, bsearch(?), 9328 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 9329 CONF_VALUE. 9330 9331 *Ben Laurie* 9332 9333 * New function OPENSSL_gmtime_adj() to add a specific number of days and 9334 seconds to a tm structure directly, instead of going through OS 9335 specific date routines. This avoids any issues with OS routines such 9336 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 9337 and X509_time_adj_ex() to cover the extended range. The existing 9338 X509_time_adj() is still usable and will no longer have any date issues. 9339 9340 *Steve Henson* 9341 9342 * Delta CRL support. New use deltas option which will attempt to locate 9343 and search any appropriate delta CRLs available. 9344 9345 This work was sponsored by Google. 9346 9347 *Steve Henson* 9348 9349 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9350 code and add additional score elements. Validate alternate CRL paths 9351 as part of the CRL checking and indicate a new error "CRL path validation 9352 error" in this case. Applications wanting additional details can use 9353 the verify callback and check the new "parent" field. If this is not 9354 NULL CRL path validation is taking place. Existing applications won't 9355 see this because it requires extended CRL support which is off by 9356 default. 9357 9358 This work was sponsored by Google. 9359 9360 *Steve Henson* 9361 9362 * Support for freshest CRL extension. 9363 9364 This work was sponsored by Google. 9365 9366 *Steve Henson* 9367 9368 * Initial indirect CRL support. Currently only supported in the CRLs 9369 passed directly and not via lookup. Process certificate issuer 9370 CRL entry extension and lookup CRL entries by bother issuer name 9371 and serial number. Check and process CRL issuer entry in IDP extension. 9372 9373 This work was sponsored by Google. 9374 9375 *Steve Henson* 9376 9377 * Add support for distinct certificate and CRL paths. The CRL issuer 9378 certificate is validated separately in this case. Only enabled if 9379 an extended CRL support flag is set: this flag will enable additional 9380 CRL functionality in future. 9381 9382 This work was sponsored by Google. 9383 9384 *Steve Henson* 9385 9386 * Add support for policy mappings extension. 9387 9388 This work was sponsored by Google. 9389 9390 *Steve Henson* 9391 9392 * Fixes to pathlength constraint, self issued certificate handling, 9393 policy processing to align with RFC3280 and PKITS tests. 9394 9395 This work was sponsored by Google. 9396 9397 *Steve Henson* 9398 9399 * Support for name constraints certificate extension. DN, email, DNS 9400 and URI types are currently supported. 9401 9402 This work was sponsored by Google. 9403 9404 *Steve Henson* 9405 9406 * To cater for systems that provide a pointer-based thread ID rather 9407 than numeric, deprecate the current numeric thread ID mechanism and 9408 replace it with a structure and associated callback type. This 9409 mechanism allows a numeric "hash" to be extracted from a thread ID in 9410 either case, and on platforms where pointers are larger than 'long', 9411 mixing is done to help ensure the numeric 'hash' is usable even if it 9412 can't be guaranteed unique. The default mechanism is to use "&errno" 9413 as a pointer-based thread ID to distinguish between threads. 9414 9415 Applications that want to provide their own thread IDs should now use 9416 CRYPTO_THREADID_set_callback() to register a callback that will call 9417 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9418 9419 Note that ERR_remove_state() is now deprecated, because it is tied 9420 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9421 to free the current thread's error state should be replaced by 9422 ERR_remove_thread_state(NULL). 9423 9424 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9425 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9426 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9427 application was previously providing a numeric thread callback that 9428 was inappropriate for distinguishing threads, then uniqueness might 9429 have been obtained with &errno that happened immediately in the 9430 intermediate development versions of OpenSSL; this is no longer the 9431 case, the numeric thread callback will now override the automatic use 9432 of &errno.) 9433 9434 *Geoff Thorpe, with help from Bodo Moeller* 9435 9436 * Initial support for different CRL issuing certificates. This covers a 9437 simple case where the self issued certificates in the chain exist and 9438 the real CRL issuer is higher in the existing chain. 9439 9440 This work was sponsored by Google. 9441 9442 *Steve Henson* 9443 9444 * Removed effectively defunct crypto/store from the build. 9445 9446 *Ben Laurie* 9447 9448 * Revamp of STACK to provide stronger type-checking. Still to come: 9449 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9450 ASN1_STRING, CONF_VALUE. 9451 9452 *Ben Laurie* 9453 9454 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9455 RAM on SSL connections. This option can save about 34k per idle SSL. 9456 9457 *Nick Mathewson* 9458 9459 * Revamp of LHASH to provide stronger type-checking. Still to come: 9460 STACK, TXT_DB, bsearch, qsort. 9461 9462 *Ben Laurie* 9463 9464 * Initial support for Cryptographic Message Syntax (aka CMS) based 9465 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9466 support for data, signedData, compressedData, digestedData and 9467 encryptedData, envelopedData types included. Scripts to check against 9468 RFC4134 examples draft and interop and consistency checks of many 9469 content types and variants. 9470 9471 *Steve Henson* 9472 9473 * Add options to enc utility to support use of zlib compression BIO. 9474 9475 *Steve Henson* 9476 9477 * Extend mk1mf to support importing of options and assembly language 9478 files from Configure script, currently only included in VC-WIN32. 9479 The assembly language rules can now optionally generate the source 9480 files from the associated perl scripts. 9481 9482 *Steve Henson* 9483 9484 * Implement remaining functionality needed to support GOST ciphersuites. 9485 Interop testing has been performed using CryptoPro implementations. 9486 9487 *Victor B. Wagner <vitus@cryptocom.ru>* 9488 9489 * s390x assembler pack. 9490 9491 *Andy Polyakov* 9492 9493 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9494 "family." 9495 9496 *Andy Polyakov* 9497 9498 * Implement Opaque PRF Input TLS extension as specified in 9499 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9500 official specification yet and no extension type assignment by 9501 IANA exists, this extension (for now) will have to be explicitly 9502 enabled when building OpenSSL by providing the extension number 9503 to use. For example, specify an option 9504 9505 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9506 9507 to the "config" or "Configure" script to enable the extension, 9508 assuming extension number 0x9527 (which is a completely arbitrary 9509 and unofficial assignment based on the MD5 hash of the Internet 9510 Draft). Note that by doing so, you potentially lose 9511 interoperability with other TLS implementations since these might 9512 be using the same extension number for other purposes. 9513 9514 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9515 opaque PRF input value to use in the handshake. This will create 9516 an internal copy of the length-'len' string at 'src', and will 9517 return non-zero for success. 9518 9519 To get more control and flexibility, provide a callback function 9520 by using 9521 9522 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9523 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9524 9525 where 9526 9527 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9528 void *arg; 9529 9530 Callback function 'cb' will be called in handshakes, and is 9531 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9532 Argument 'arg' is for application purposes (the value as given to 9533 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9534 be provided to the callback function). The callback function 9535 has to return non-zero to report success: usually 1 to use opaque 9536 PRF input just if possible, or 2 to enforce use of the opaque PRF 9537 input. In the latter case, the library will abort the handshake 9538 if opaque PRF input is not successfully negotiated. 9539 9540 Arguments 'peerinput' and 'len' given to the callback function 9541 will always be NULL and 0 in the case of a client. A server will 9542 see the client's opaque PRF input through these variables if 9543 available (NULL and 0 otherwise). Note that if the server 9544 provides an opaque PRF input, the length must be the same as the 9545 length of the client's opaque PRF input. 9546 9547 Note that the callback function will only be called when creating 9548 a new session (session resumption can resume whatever was 9549 previously negotiated), and will not be called in SSL 2.0 9550 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9551 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9552 for applications that need to enforce opaque PRF input. 9553 9554 *Bodo Moeller* 9555 9556 * Update ssl code to support digests other than SHA1+MD5 for handshake 9557 MAC. 9558 9559 *Victor B. Wagner <vitus@cryptocom.ru>* 9560 9561 * Add RFC4507 support to OpenSSL. This includes the corrections in 9562 RFC4507bis. The encrypted ticket format is an encrypted encoded 9563 SSL_SESSION structure, that way new session features are automatically 9564 supported. 9565 9566 If a client application caches session in an SSL_SESSION structure 9567 support is transparent because tickets are now stored in the encoded 9568 SSL_SESSION. 9569 9570 The SSL_CTX structure automatically generates keys for ticket 9571 protection in servers so again support should be possible 9572 with no application modification. 9573 9574 If a client or server wishes to disable RFC4507 support then the option 9575 SSL_OP_NO_TICKET can be set. 9576 9577 Add a TLS extension debugging callback to allow the contents of any client 9578 or server extensions to be examined. 9579 9580 This work was sponsored by Google. 9581 9582 *Steve Henson* 9583 9584 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9585 OpenSSL should now compile cleanly on gcc 4.2 9586 9587 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9588 9589 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9590 support including streaming MAC support: this is required for GOST 9591 ciphersuite support. 9592 9593 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9594 9595 * Add option -stream to use PKCS#7 streaming in smime utility. New 9596 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9597 to output in BER and PEM format. 9598 9599 *Steve Henson* 9600 9601 * Experimental support for use of HMAC via EVP_PKEY interface. This 9602 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9603 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9604 ENGINE support for HMAC keys which are unextractable. New -mac and 9605 -macopt options to dgst utility. 9606 9607 *Steve Henson* 9608 9609 * New option -sigopt to dgst utility. Update dgst to use 9610 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9611 alternative signing parameters such as X9.31 or PSS in the dgst 9612 utility. 9613 9614 *Steve Henson* 9615 9616 * Change ssl_cipher_apply_rule(), the internal function that does 9617 the work each time a ciphersuite string requests enabling 9618 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9619 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9620 the order of disabled ciphersuites such that those ciphersuites 9621 that most recently went from enabled to disabled not only stay 9622 in order with respect to each other, but also have higher priority 9623 than other disabled ciphersuites the next time ciphersuites are 9624 enabled again. 9625 9626 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9627 the same ciphersuites as with "HIGH" alone, but in a specific 9628 order where the PSK ciphersuites come first (since they are the 9629 most recently disabled ciphersuites when "HIGH" is parsed). 9630 9631 Also, change ssl_create_cipher_list() (using this new 9632 functionality) such that between otherwise identical 9633 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9634 the default order. 9635 9636 *Bodo Moeller* 9637 9638 * Change ssl_create_cipher_list() so that it automatically 9639 arranges the ciphersuites in reasonable order before starting 9640 to process the rule string. Thus, the definition for "DEFAULT" 9641 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9642 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9643 This makes it much easier to arrive at a reasonable default order 9644 in applications for which anonymous ciphers are OK (meaning 9645 that you can't actually use DEFAULT). 9646 9647 *Bodo Moeller; suggested by Victor Duchovni* 9648 9649 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9650 processing) into multiple integers instead of setting 9651 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9652 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9653 (These masks as well as the individual bit definitions are hidden 9654 away into the non-exported interface ssl/ssl_locl.h, so this 9655 change to the definition of the SSL_CIPHER structure shouldn't 9656 affect applications.) This give us more bits for each of these 9657 categories, so there is no longer a need to coagulate AES128 and 9658 AES256 into a single algorithm bit, and to coagulate Camellia128 9659 and Camellia256 into a single algorithm bit, which has led to all 9660 kinds of kludges. 9661 9662 Thus, among other things, the kludge introduced in 0.9.7m and 9663 0.9.8e for masking out AES256 independently of AES128 or masking 9664 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9665 9666 With the change, we also introduce new ciphersuite aliases that 9667 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9668 "CAMELLIA256". 9669 9670 *Bodo Moeller* 9671 9672 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9673 Use the leftmost N bytes of the signature input if the input is 9674 larger than the prime q (with N being the size in bytes of q). 9675 9676 *Nils Larsch* 9677 9678 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9679 it yet and it is largely untested. 9680 9681 *Steve Henson* 9682 9683 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9684 9685 *Nils Larsch* 9686 9687 * Initial incomplete changes to avoid need for function casts in OpenSSL 9688 some compilers (gcc 4.2 and later) reject their use. Safestack is 9689 reimplemented. Update ASN1 to avoid use of legacy functions. 9690 9691 *Steve Henson* 9692 9693 * Win32/64 targets are linked with Winsock2. 9694 9695 *Andy Polyakov* 9696 9697 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9698 to external functions. This can be used to increase CRL handling 9699 efficiency especially when CRLs are very large by (for example) storing 9700 the CRL revoked certificates in a database. 9701 9702 *Steve Henson* 9703 9704 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9705 new CRLs added to a directory can be used. New command line option 9706 -verify_return_error to s_client and s_server. This causes real errors 9707 to be returned by the verify callback instead of carrying on no matter 9708 what. This reflects the way a "real world" verify callback would behave. 9709 9710 *Steve Henson* 9711 9712 * GOST engine, supporting several GOST algorithms and public key formats. 9713 Kindly donated by Cryptocom. 9714 9715 *Cryptocom* 9716 9717 * Partial support for Issuing Distribution Point CRL extension. CRLs 9718 partitioned by DP are handled but no indirect CRL or reason partitioning 9719 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9720 selected via a scoring technique which handles IDP and AKID in CRLs. 9721 9722 *Steve Henson* 9723 9724 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9725 will ultimately be used for all verify operations: this will remove the 9726 X509_STORE dependency on certificate verification and allow alternative 9727 lookup methods. X509_STORE based implementations of these two callbacks. 9728 9729 *Steve Henson* 9730 9731 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9732 Modify get_crl() to find a valid (unexpired) CRL if possible. 9733 9734 *Steve Henson* 9735 9736 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9737 this would be called X509_CRL_cmp() but that name is already used by 9738 a function that just compares CRL issuer names. Cache several CRL 9739 extensions in X509_CRL structure and cache CRLDP in X509. 9740 9741 *Steve Henson* 9742 9743 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9744 this maps equivalent X509_NAME structures into a consistent structure. 9745 Name comparison can then be performed rapidly using memcmp(). 9746 9747 *Steve Henson* 9748 9749 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9750 utility. 9751 9752 *Steve Henson* 9753 9754 * Allow digests to supply their own micalg string for S/MIME type using 9755 the ctrl EVP_MD_CTRL_MICALG. 9756 9757 *Steve Henson* 9758 9759 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9760 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9761 ctrl. It can then customise the structure before and/or after signing 9762 if necessary. 9763 9764 *Steve Henson* 9765 9766 * New function OBJ_add_sigid() to allow application defined signature OIDs 9767 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9768 to free up any added signature OIDs. 9769 9770 *Steve Henson* 9771 9772 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9773 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9774 digest and cipher tables. New options added to openssl utility: 9775 list-message-digest-algorithms and list-cipher-algorithms. 9776 9777 *Steve Henson* 9778 9779 * Change the array representation of binary polynomials: the list 9780 of degrees of non-zero coefficients is now terminated with -1. 9781 Previously it was terminated with 0, which was also part of the 9782 value; thus, the array representation was not applicable to 9783 polynomials where t^0 has coefficient zero. This change makes 9784 the array representation useful in a more general context. 9785 9786 *Douglas Stebila* 9787 9788 * Various modifications and fixes to SSL/TLS cipher string 9789 handling. For ECC, the code now distinguishes between fixed ECDH 9790 with RSA certificates on the one hand and with ECDSA certificates 9791 on the other hand, since these are separate ciphersuites. The 9792 unused code for Fortezza ciphersuites has been removed. 9793 9794 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9795 (not "ECDHE"). For consistency with the code for DH 9796 certificates, use of ECDH certificates is now considered ECDH 9797 authentication, not RSA or ECDSA authentication (the latter is 9798 merely the CA's signing algorithm and not actively used in the 9799 protocol). 9800 9801 The temporary ciphersuite alias "ECCdraft" is no longer 9802 available, and ECC ciphersuites are no longer excluded from "ALL" 9803 and "DEFAULT". The following aliases now exist for RFC 4492 9804 ciphersuites, most of these by analogy with the DH case: 9805 9806 kECDHr - ECDH cert, signed with RSA 9807 kECDHe - ECDH cert, signed with ECDSA 9808 kECDH - ECDH cert (signed with either RSA or ECDSA) 9809 kEECDH - ephemeral ECDH 9810 ECDH - ECDH cert or ephemeral ECDH 9811 9812 aECDH - ECDH cert 9813 aECDSA - ECDSA cert 9814 ECDSA - ECDSA cert 9815 9816 AECDH - anonymous ECDH 9817 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9818 9819 *Bodo Moeller* 9820 9821 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9822 Use correct micalg parameters depending on digest(s) in signed message. 9823 9824 *Steve Henson* 9825 9826 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9827 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9828 9829 *Steve Henson* 9830 9831 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9832 an engine to register a method. Add ENGINE lookups for methods and 9833 functional reference processing. 9834 9835 *Steve Henson* 9836 9837 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9838 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9839 process. 9840 9841 *Steve Henson* 9842 9843 * New -resign option to smime utility. This adds one or more signers 9844 to an existing PKCS#7 signedData structure. Also -md option to use an 9845 alternative message digest algorithm for signing. 9846 9847 *Steve Henson* 9848 9849 * Tidy up PKCS#7 routines and add new functions to make it easier to 9850 create PKCS7 structures containing multiple signers. Update smime 9851 application to support multiple signers. 9852 9853 *Steve Henson* 9854 9855 * New -macalg option to pkcs12 utility to allow setting of an alternative 9856 digest MAC. 9857 9858 *Steve Henson* 9859 9860 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9861 Reorganize PBE internals to lookup from a static table using NIDs, 9862 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9863 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9864 PRF which will be automatically used with PBES2. 9865 9866 *Steve Henson* 9867 9868 * Replace the algorithm specific calls to generate keys in "req" with the 9869 new API. 9870 9871 *Steve Henson* 9872 9873 * Update PKCS#7 enveloped data routines to use new API. This is now 9874 supported by any public key method supporting the encrypt operation. A 9875 ctrl is added to allow the public key algorithm to examine or modify 9876 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9877 a no op. 9878 9879 *Steve Henson* 9880 9881 * Add a ctrl to asn1 method to allow a public key algorithm to express 9882 a default digest type to use. In most cases this will be SHA1 but some 9883 algorithms (such as GOST) need to specify an alternative digest. The 9884 return value indicates how strong the preference is 1 means optional and 9885 2 is mandatory (that is it is the only supported type). Modify 9886 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9887 use the default md. Update openssl utilities to use the default digest 9888 type for signing if it is not explicitly indicated. 9889 9890 *Steve Henson* 9891 9892 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9893 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9894 signing method from the key type. This effectively removes the link 9895 between digests and public key types. 9896 9897 *Steve Henson* 9898 9899 * Add an OID cross reference table and utility functions. Its purpose is to 9900 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9901 rsaEncryption. This will allow some of the algorithm specific hackery 9902 needed to use the correct OID to be removed. 9903 9904 *Steve Henson* 9905 9906 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9907 structures for PKCS7_sign(). They are now set up by the relevant public 9908 key ASN1 method. 9909 9910 *Steve Henson* 9911 9912 * Add provisional EC pkey method with support for ECDSA and ECDH. 9913 9914 *Steve Henson* 9915 9916 * Add support for key derivation (agreement) in the API, DH method and 9917 pkeyutl. 9918 9919 *Steve Henson* 9920 9921 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9922 public and private key formats. As a side effect these add additional 9923 command line functionality not previously available: DSA signatures can be 9924 generated and verified using pkeyutl and DH key support and generation in 9925 pkey, genpkey. 9926 9927 *Steve Henson* 9928 9929 * BeOS support. 9930 9931 *Oliver Tappe <zooey@hirschkaefer.de>* 9932 9933 * New make target "install_html_docs" installs HTML renditions of the 9934 manual pages. 9935 9936 *Oliver Tappe <zooey@hirschkaefer.de>* 9937 9938 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9939 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9940 support key and parameter generation and add initial key generation 9941 functionality for RSA. 9942 9943 *Steve Henson* 9944 9945 * Add functions for main EVP_PKEY_method operations. The undocumented 9946 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9947 `EVP_PKEY_{encrypt,decrypt}_old`. 9948 9949 *Steve Henson* 9950 9951 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9952 key API, doesn't do much yet. 9953 9954 *Steve Henson* 9955 9956 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9957 public key algorithms. New option to openssl utility: 9958 "list-public-key-algorithms" to print out info. 9959 9960 *Steve Henson* 9961 9962 * Implement the Supported Elliptic Curves Extension for 9963 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9964 9965 *Douglas Stebila* 9966 9967 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9968 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 9969 9970 *Steve Henson* 9971 9972 * New utilities pkey and pkeyparam. These are similar to algorithm specific 9973 utilities such as rsa, dsa, dsaparam etc except they process any key 9974 type. 9975 9976 *Steve Henson* 9977 9978 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 9979 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 9980 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 9981 structure. 9982 9983 *Steve Henson* 9984 9985 * Initial support for pluggable public key ASN1. 9986 De-spaghettify the public key ASN1 handling. Move public and private 9987 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 9988 algorithm specific handling to a single module within the relevant 9989 algorithm directory. Add functions to allow (near) opaque processing 9990 of public and private key structures. 9991 9992 *Steve Henson* 9993 9994 * Implement the Supported Point Formats Extension for 9995 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9996 9997 *Douglas Stebila* 9998 9999 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 10000 for the psk identity [hint] and the psk callback functions to the 10001 SSL_SESSION, SSL and SSL_CTX structure. 10002 10003 New ciphersuites: 10004 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 10005 PSK-AES256-CBC-SHA 10006 10007 New functions: 10008 SSL_CTX_use_psk_identity_hint 10009 SSL_get_psk_identity_hint 10010 SSL_get_psk_identity 10011 SSL_use_psk_identity_hint 10012 10013 *Mika Kousa and Pasi Eronen of Nokia Corporation* 10014 10015 * Add RFC 3161 compliant time stamp request creation, response generation 10016 and response verification functionality. 10017 10018 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 10019 10020 * Add initial support for TLS extensions, specifically for the server_name 10021 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10022 have new members for a host name. The SSL data structure has an 10023 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10024 stored in that context to allow for session resumption, even after the 10025 SSL has been switched to a new SSL_CTX in reaction to a client's 10026 server_name extension. 10027 10028 New functions (subject to change): 10029 10030 SSL_get_servername() 10031 SSL_get_servername_type() 10032 SSL_set_SSL_CTX() 10033 10034 New CTRL codes and macros (subject to change): 10035 10036 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10037 - SSL_CTX_set_tlsext_servername_callback() 10038 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10039 - SSL_CTX_set_tlsext_servername_arg() 10040 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10041 10042 openssl s_client has a new '-servername ...' option. 10043 10044 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10045 '-key2 ...', '-servername_fatal' (subject to change). This allows 10046 testing the HostName extension for a specific single host name ('-cert' 10047 and '-key' remain fallbacks for handshakes without HostName 10048 negotiation). If the unrecognized_name alert has to be sent, this by 10049 default is a warning; it becomes fatal with the '-servername_fatal' 10050 option. 10051 10052 *Peter Sylvester, Remy Allais, Christophe Renou* 10053 10054 * Whirlpool hash implementation is added. 10055 10056 *Andy Polyakov* 10057 10058 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 10059 bn(64,32). Because of instruction set limitations it doesn't have 10060 any negative impact on performance. This was done mostly in order 10061 to make it possible to share assembler modules, such as bn_mul_mont 10062 implementations, between 32- and 64-bit builds without hassle. 10063 10064 *Andy Polyakov* 10065 10066 * Move code previously exiled into file crypto/ec/ec2_smpt.c 10067 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 10068 macro. 10069 10070 *Bodo Moeller* 10071 10072 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 10073 dedicated Montgomery multiplication procedure, is introduced. 10074 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 10075 "64-bit" performance on certain 32-bit targets. 10076 10077 *Andy Polyakov* 10078 10079 * New option SSL_OP_NO_COMP to disable use of compression selectively 10080 in SSL structures. New SSL ctrl to set maximum send fragment size. 10081 Save memory by setting the I/O buffer sizes dynamically instead of 10082 using the maximum available value. 10083 10084 *Steve Henson* 10085 10086 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 10087 in addition to the text details. 10088 10089 *Bodo Moeller* 10090 10091 * Very, very preliminary EXPERIMENTAL support for printing of general 10092 ASN1 structures. This currently produces rather ugly output and doesn't 10093 handle several customised structures at all. 10094 10095 *Steve Henson* 10096 10097 * Integrated support for PVK file format and some related formats such 10098 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 10099 these in the 'rsa' and 'dsa' utilities. 10100 10101 *Steve Henson* 10102 10103 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 10104 10105 *Steve Henson* 10106 10107 * Remove the ancient ASN1_METHOD code. This was only ever used in one 10108 place for the (very old) "NETSCAPE" format certificates which are now 10109 handled using new ASN1 code equivalents. 10110 10111 *Steve Henson* 10112 10113 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 10114 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 10115 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 10116 10117 *Nils Larsch* 10118 10119 * Modify CRL distribution points extension code to print out previously 10120 unsupported fields. Enhance extension setting code to allow setting of 10121 all fields. 10122 10123 *Steve Henson* 10124 10125 * Add print and set support for Issuing Distribution Point CRL extension. 10126 10127 *Steve Henson* 10128 10129 * Change 'Configure' script to enable Camellia by default. 10130 10131 *NTT* 10132 10133OpenSSL 0.9.x 10134------------- 10135 10136### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 10137 10138 * When rejecting SSL/TLS records due to an incorrect version number, never 10139 update s->server with a new major version number. As of 10140 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 10141 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 10142 the previous behavior could result in a read attempt at NULL when 10143 receiving specific incorrect SSL/TLS records once record payload 10144 protection is active. ([CVE-2010-0740]) 10145 10146 *Bodo Moeller, Adam Langley <agl@chromium.org>* 10147 10148 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 10149 could be crashed if the relevant tables were not present (e.g. chrooted). 10150 10151 *Tomas Hoger <thoger@redhat.com>* 10152 10153### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 10154 10155 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 10156 10157 *Martin Olsson, Neel Mehta* 10158 10159 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 10160 accommodate for stack sorting, always a write lock!). 10161 10162 *Bodo Moeller* 10163 10164 * On some versions of WIN32 Heap32Next is very slow. This can cause 10165 excessive delays in the RAND_poll(): over a minute. As a workaround 10166 include a time check in the inner Heap32Next loop too. 10167 10168 *Steve Henson* 10169 10170 * The code that handled flushing of data in SSL/TLS originally used the 10171 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 10172 the problem outlined in PR#1949. The fix suggested there however can 10173 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 10174 of Apache). So instead simplify the code to flush unconditionally. 10175 This should be fine since flushing with no data to flush is a no op. 10176 10177 *Steve Henson* 10178 10179 * Handle TLS versions 2.0 and later properly and correctly use the 10180 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 10181 off ancient servers have a habit of sticking around for a while... 10182 10183 *Steve Henson* 10184 10185 * Modify compression code so it frees up structures without using the 10186 ex_data callbacks. This works around a problem where some applications 10187 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 10188 restarting) then use compression (e.g. SSL with compression) later. 10189 This results in significant per-connection memory leaks and 10190 has caused some security issues including CVE-2008-1678 and 10191 CVE-2009-4355. 10192 10193 *Steve Henson* 10194 10195 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 10196 change when encrypting or decrypting. 10197 10198 *Bodo Moeller* 10199 10200 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 10201 connect and renegotiate with servers which do not support RI. 10202 Until RI is more widely deployed this option is enabled by default. 10203 10204 *Steve Henson* 10205 10206 * Add "missing" ssl ctrls to clear options and mode. 10207 10208 *Steve Henson* 10209 10210 * If client attempts to renegotiate and doesn't support RI respond with 10211 a no_renegotiation alert as required by RFC5746. Some renegotiating 10212 TLS clients will continue a connection gracefully when they receive 10213 the alert. Unfortunately OpenSSL mishandled this alert and would hang 10214 waiting for a server hello which it will never receive. Now we treat a 10215 received no_renegotiation alert as a fatal error. This is because 10216 applications requesting a renegotiation might well expect it to succeed 10217 and would have no code in place to handle the server denying it so the 10218 only safe thing to do is to terminate the connection. 10219 10220 *Steve Henson* 10221 10222 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 10223 peer supports secure renegotiation and 0 otherwise. Print out peer 10224 renegotiation support in s_client/s_server. 10225 10226 *Steve Henson* 10227 10228 * Replace the highly broken and deprecated SPKAC certification method with 10229 the updated NID creation version. This should correctly handle UTF8. 10230 10231 *Steve Henson* 10232 10233 * Implement RFC5746. Re-enable renegotiation but require the extension 10234 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 10235 turns out to be a bad idea. It has been replaced by 10236 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 10237 SSL_CTX_set_options(). This is really not recommended unless you 10238 know what you are doing. 10239 10240 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 10241 10242 * Fixes to stateless session resumption handling. Use initial_ctx when 10243 issuing and attempting to decrypt tickets in case it has changed during 10244 servername handling. Use a non-zero length session ID when attempting 10245 stateless session resumption: this makes it possible to determine if 10246 a resumption has occurred immediately after receiving server hello 10247 (several places in OpenSSL subtly assume this) instead of later in 10248 the handshake. 10249 10250 *Steve Henson* 10251 10252 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 10253 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 10254 fixes for a few places where the return code is not checked 10255 correctly. 10256 10257 *Julia Lawall <julia@diku.dk>* 10258 10259 * Add --strict-warnings option to Configure script to include devteam 10260 warnings in other configurations. 10261 10262 *Steve Henson* 10263 10264 * Add support for --libdir option and LIBDIR variable in makefiles. This 10265 makes it possible to install openssl libraries in locations which 10266 have names other than "lib", for example "/usr/lib64" which some 10267 systems need. 10268 10269 *Steve Henson, based on patch from Jeremy Utley* 10270 10271 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 10272 X690 8.9.12 and can produce some misleading textual output of OIDs. 10273 10274 *Steve Henson, reported by Dan Kaminsky* 10275 10276 * Delete MD2 from algorithm tables. This follows the recommendation in 10277 several standards that it is not used in new applications due to 10278 several cryptographic weaknesses. For binary compatibility reasons 10279 the MD2 API is still compiled in by default. 10280 10281 *Steve Henson* 10282 10283 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 10284 and restored. 10285 10286 *Steve Henson* 10287 10288 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 10289 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 10290 clash. 10291 10292 *Guenter <lists@gknw.net>* 10293 10294 * Fix the server certificate chain building code to use X509_verify_cert(), 10295 it used to have an ad-hoc builder which was unable to cope with anything 10296 other than a simple chain. 10297 10298 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 10299 10300 * Don't check self signed certificate signatures in X509_verify_cert() 10301 by default (a flag can override this): it just wastes time without 10302 adding any security. As a useful side effect self signed root CAs 10303 with non-FIPS digests are now usable in FIPS mode. 10304 10305 *Steve Henson* 10306 10307 * In dtls1_process_out_of_seq_message() the check if the current message 10308 is already buffered was missing. For every new message was memory 10309 allocated, allowing an attacker to perform an denial of service attack 10310 with sending out of seq handshake messages until there is no memory 10311 left. Additionally every future message was buffered, even if the 10312 sequence number made no sense and would be part of another handshake. 10313 So only messages with sequence numbers less than 10 in advance will be 10314 buffered. ([CVE-2009-1378]) 10315 10316 *Robin Seggelmann, discovered by Daniel Mentz* 10317 10318 * Records are buffered if they arrive with a future epoch to be 10319 processed after finishing the corresponding handshake. There is 10320 currently no limitation to this buffer allowing an attacker to perform 10321 a DOS attack with sending records with future epochs until there is no 10322 memory left. This patch adds the pqueue_size() function to determine 10323 the size of a buffer and limits the record buffer to 100 entries. 10324 ([CVE-2009-1377]) 10325 10326 *Robin Seggelmann, discovered by Daniel Mentz* 10327 10328 * Keep a copy of frag->msg_header.frag_len so it can be used after the 10329 parent structure is freed. ([CVE-2009-1379]) 10330 10331 *Daniel Mentz* 10332 10333 * Handle non-blocking I/O properly in SSL_shutdown() call. 10334 10335 *Darryl Miles <darryl-mailinglists@netbauds.net>* 10336 10337 * Add `2.5.4.*` OIDs 10338 10339 *Ilya O. <vrghost@gmail.com>* 10340 10341### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 10342 10343 * Disable renegotiation completely - this fixes a severe security 10344 problem ([CVE-2009-3555]) at the cost of breaking all 10345 renegotiation. Renegotiation can be re-enabled by setting 10346 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10347 run-time. This is really not recommended unless you know what 10348 you're doing. 10349 10350 *Ben Laurie* 10351 10352### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10353 10354 * Don't set val to NULL when freeing up structures, it is freed up by 10355 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10356 zeroing past the valid field. ([CVE-2009-0789]) 10357 10358 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10359 10360 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10361 checked correctly. This would allow some invalid signed attributes to 10362 appear to verify correctly. ([CVE-2009-0591]) 10363 10364 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10365 10366 * Reject UniversalString and BMPString types with invalid lengths. This 10367 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10368 a legal length. ([CVE-2009-0590]) 10369 10370 *Steve Henson* 10371 10372 * Set S/MIME signing as the default purpose rather than setting it 10373 unconditionally. This allows applications to override it at the store 10374 level. 10375 10376 *Steve Henson* 10377 10378 * Permit restricted recursion of ASN1 strings. This is needed in practice 10379 to handle some structures. 10380 10381 *Steve Henson* 10382 10383 * Improve efficiency of mem_gets: don't search whole buffer each time 10384 for a '\n' 10385 10386 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10387 10388 * New -hex option for openssl rand. 10389 10390 *Matthieu Herrb* 10391 10392 * Print out UTF8String and NumericString when parsing ASN1. 10393 10394 *Steve Henson* 10395 10396 * Support NumericString type for name components. 10397 10398 *Steve Henson* 10399 10400 * Allow CC in the environment to override the automatically chosen 10401 compiler. Note that nothing is done to ensure flags work with the 10402 chosen compiler. 10403 10404 *Ben Laurie* 10405 10406### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10407 10408 * Properly check EVP_VerifyFinal() and similar return values 10409 ([CVE-2008-5077]). 10410 10411 *Ben Laurie, Bodo Moeller, Google Security Team* 10412 10413 * Enable TLS extensions by default. 10414 10415 *Ben Laurie* 10416 10417 * Allow the CHIL engine to be loaded, whether the application is 10418 multithreaded or not. (This does not release the developer from the 10419 obligation to set up the dynamic locking callbacks.) 10420 10421 *Sander Temme <sander@temme.net>* 10422 10423 * Use correct exit code if there is an error in dgst command. 10424 10425 *Steve Henson; problem pointed out by Roland Dirlewanger* 10426 10427 * Tweak Configure so that you need to say "experimental-jpake" to enable 10428 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10429 10430 *Bodo Moeller* 10431 10432 * Add experimental JPAKE support, including demo authentication in 10433 s_client and s_server. 10434 10435 *Ben Laurie* 10436 10437 * Set the comparison function in v3_addr_canonize(). 10438 10439 *Rob Austein <sra@hactrn.net>* 10440 10441 * Add support for XMPP STARTTLS in s_client. 10442 10443 *Philip Paeps <philip@freebsd.org>* 10444 10445 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10446 to ensure that even with this option, only ciphersuites in the 10447 server's preference list will be accepted. (Note that the option 10448 applies only when resuming a session, so the earlier behavior was 10449 just about the algorithm choice for symmetric cryptography.) 10450 10451 *Bodo Moeller* 10452 10453### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10454 10455 * Fix NULL pointer dereference if a DTLS server received 10456 ChangeCipherSpec as first record ([CVE-2009-1386]). 10457 10458 *PR #1679* 10459 10460 * Fix a state transition in s3_srvr.c and d1_srvr.c 10461 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10462 10463 *Nagendra Modadugu* 10464 10465 * The fix in 0.9.8c that supposedly got rid of unsafe 10466 double-checked locking was incomplete for RSA blinding, 10467 addressing just one layer of what turns out to have been 10468 doubly unsafe triple-checked locking. 10469 10470 So now fix this for real by retiring the MONT_HELPER macro 10471 in crypto/rsa/rsa_eay.c. 10472 10473 *Bodo Moeller; problem pointed out by Marius Schilder* 10474 10475 * Various precautionary measures: 10476 10477 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10478 10479 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10480 (NB: This would require knowledge of the secret session ticket key 10481 to exploit, in which case you'd be SOL either way.) 10482 10483 - Change bn_nist.c so that it will properly handle input BIGNUMs 10484 outside the expected range. 10485 10486 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10487 builds. 10488 10489 *Neel Mehta, Bodo Moeller* 10490 10491 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10492 the load fails. Useful for distros. 10493 10494 *Ben Laurie and the FreeBSD team* 10495 10496 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10497 10498 *Steve Henson* 10499 10500 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10501 10502 *Huang Ying* 10503 10504 * Expand ENGINE to support engine supplied SSL client certificate functions. 10505 10506 This work was sponsored by Logica. 10507 10508 *Steve Henson* 10509 10510 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10511 keystores. Support for SSL/TLS client authentication too. 10512 Not compiled unless enable-capieng specified to Configure. 10513 10514 This work was sponsored by Logica. 10515 10516 *Steve Henson* 10517 10518 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10519 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10520 attribute creation routines such as certificate requests and PKCS#12 10521 files. 10522 10523 *Steve Henson* 10524 10525### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10526 10527 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10528 handshake which could lead to a client crash as found using the 10529 Codenomicon TLS test suite ([CVE-2008-1672]) 10530 10531 *Steve Henson, Mark Cox* 10532 10533 * Fix double free in TLS server name extensions which could lead to 10534 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10535 10536 *Joe Orton* 10537 10538 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10539 10540 Clear the error queue to ensure that error entries left from 10541 older function calls do not interfere with the correct operation. 10542 10543 *Lutz Jaenicke, Erik de Castro Lopo* 10544 10545 * Remove root CA certificates of commercial CAs: 10546 10547 The OpenSSL project does not recommend any specific CA and does not 10548 have any policy with respect to including or excluding any CA. 10549 Therefore it does not make any sense to ship an arbitrary selection 10550 of root CA certificates with the OpenSSL software. 10551 10552 *Lutz Jaenicke* 10553 10554 * RSA OAEP patches to fix two separate invalid memory reads. 10555 The first one involves inputs when 'lzero' is greater than 10556 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10557 before the beginning of from). The second one involves inputs where 10558 the 'db' section contains nothing but zeroes (there is a one-byte 10559 invalid read after the end of 'db'). 10560 10561 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10562 10563 * Partial backport from 0.9.9-dev: 10564 10565 Introduce bn_mul_mont (dedicated Montgomery multiplication 10566 procedure) as a candidate for BIGNUM assembler implementation. 10567 While 0.9.9-dev uses assembler for various architectures, only 10568 x86_64 is available by default here in the 0.9.8 branch, and 10569 32-bit x86 is available through a compile-time setting. 10570 10571 To try the 32-bit x86 assembler implementation, use Configure 10572 option "enable-montasm" (which exists only for this backport). 10573 10574 As "enable-montasm" for 32-bit x86 disclaims code stability 10575 anyway, in this constellation we activate additional code 10576 backported from 0.9.9-dev for further performance improvements, 10577 namely BN_from_montgomery_word. (To enable this otherwise, 10578 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10579 10580 *Andy Polyakov (backport partially by Bodo Moeller)* 10581 10582 * Add TLS session ticket callback. This allows an application to set 10583 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10584 values. This is useful for key rollover for example where several key 10585 sets may exist with different names. 10586 10587 *Steve Henson* 10588 10589 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10590 This was broken until now in 0.9.8 releases, such that the only way 10591 a registered ENGINE could be used (assuming it initialises 10592 successfully on the host) was to explicitly set it as the default 10593 for the relevant algorithms. This is in contradiction with 0.9.7 10594 behaviour and the documentation. With this fix, when an ENGINE is 10595 registered into a given algorithm's table of implementations, the 10596 'uptodate' flag is reset so that auto-discovery will be used next 10597 time a new context for that algorithm attempts to select an 10598 implementation. 10599 10600 *Ian Lister (tweaked by Geoff Thorpe)* 10601 10602 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10603 implementation in the following ways: 10604 10605 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10606 hard coded. 10607 10608 Lack of BER streaming support means one pass streaming processing is 10609 only supported if data is detached: setting the streaming flag is 10610 ignored for embedded content. 10611 10612 CMS support is disabled by default and must be explicitly enabled 10613 with the enable-cms configuration option. 10614 10615 *Steve Henson* 10616 10617 * Update the GMP engine glue to do direct copies between BIGNUM and 10618 mpz_t when openssl and GMP use the same limb size. Otherwise the 10619 existing "conversion via a text string export" trick is still used. 10620 10621 *Paul Sheer <paulsheer@gmail.com>* 10622 10623 * Zlib compression BIO. This is a filter BIO which compressed and 10624 uncompresses any data passed through it. 10625 10626 *Steve Henson* 10627 10628 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10629 RFC3394 compatible AES key wrapping. 10630 10631 *Steve Henson* 10632 10633 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10634 sets string data without copying. X509_ALGOR_set0() and 10635 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10636 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10637 from an X509_ATTRIBUTE structure optionally checking it occurs only 10638 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10639 data. 10640 10641 *Steve Henson* 10642 10643 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10644 to get the expected BN_FLG_CONSTTIME behavior. 10645 10646 *Bodo Moeller (Google)* 10647 10648 * Netware support: 10649 10650 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10651 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10652 - added some more tests to do_tests.pl 10653 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10654 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10655 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10656 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10657 - various changes to netware.pl to enable gcc-cross builds on Win32 10658 platform 10659 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10660 - various changes to fix missing prototype warnings 10661 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10662 - added AES, WHIRLPOOL and CPUID assembler code to build files 10663 - added missing AES assembler make rules to mk1mf.pl 10664 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10665 10666 *Guenter Knauf <eflash@gmx.net>* 10667 10668 * Implement certificate status request TLS extension defined in RFC3546. 10669 A client can set the appropriate parameters and receive the encoded 10670 OCSP response via a callback. A server can query the supplied parameters 10671 and set the encoded OCSP response in the callback. Add simplified examples 10672 to s_client and s_server. 10673 10674 *Steve Henson* 10675 10676### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10677 10678 * Fix various bugs: 10679 + Binary incompatibility of ssl_ctx_st structure 10680 + DTLS interoperation with non-compliant servers 10681 + Don't call get_session_cb() without proposed session 10682 + Fix ia64 assembler code 10683 10684 *Andy Polyakov, Steve Henson* 10685 10686### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10687 10688 * DTLS Handshake overhaul. There were longstanding issues with 10689 OpenSSL DTLS implementation, which were making it impossible for 10690 RFC 4347 compliant client to communicate with OpenSSL server. 10691 Unfortunately just fixing these incompatibilities would "cut off" 10692 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10693 server keeps tolerating non RFC compliant syntax. The opposite is 10694 not true, 0.9.8f client can not communicate with earlier server. 10695 This update even addresses CVE-2007-4995. 10696 10697 *Andy Polyakov* 10698 10699 * Changes to avoid need for function casts in OpenSSL: some compilers 10700 (gcc 4.2 and later) reject their use. 10701 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10702 Steve Henson* 10703 10704 * Add RFC4507 support to OpenSSL. This includes the corrections in 10705 RFC4507bis. The encrypted ticket format is an encrypted encoded 10706 SSL_SESSION structure, that way new session features are automatically 10707 supported. 10708 10709 If a client application caches session in an SSL_SESSION structure 10710 support is transparent because tickets are now stored in the encoded 10711 SSL_SESSION. 10712 10713 The SSL_CTX structure automatically generates keys for ticket 10714 protection in servers so again support should be possible 10715 with no application modification. 10716 10717 If a client or server wishes to disable RFC4507 support then the option 10718 SSL_OP_NO_TICKET can be set. 10719 10720 Add a TLS extension debugging callback to allow the contents of any client 10721 or server extensions to be examined. 10722 10723 This work was sponsored by Google. 10724 10725 *Steve Henson* 10726 10727 * Add initial support for TLS extensions, specifically for the server_name 10728 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10729 have new members for a host name. The SSL data structure has an 10730 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10731 stored in that context to allow for session resumption, even after the 10732 SSL has been switched to a new SSL_CTX in reaction to a client's 10733 server_name extension. 10734 10735 New functions (subject to change): 10736 10737 SSL_get_servername() 10738 SSL_get_servername_type() 10739 SSL_set_SSL_CTX() 10740 10741 New CTRL codes and macros (subject to change): 10742 10743 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10744 - SSL_CTX_set_tlsext_servername_callback() 10745 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10746 - SSL_CTX_set_tlsext_servername_arg() 10747 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10748 10749 openssl s_client has a new '-servername ...' option. 10750 10751 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10752 '-key2 ...', '-servername_fatal' (subject to change). This allows 10753 testing the HostName extension for a specific single host name ('-cert' 10754 and '-key' remain fallbacks for handshakes without HostName 10755 negotiation). If the unrecognized_name alert has to be sent, this by 10756 default is a warning; it becomes fatal with the '-servername_fatal' 10757 option. 10758 10759 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10760 10761 * Add AES and SSE2 assembly language support to VC++ build. 10762 10763 *Steve Henson* 10764 10765 * Mitigate attack on final subtraction in Montgomery reduction. 10766 10767 *Andy Polyakov* 10768 10769 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10770 (which previously caused an internal error). 10771 10772 *Bodo Moeller* 10773 10774 * Squeeze another 10% out of IGE mode when in != out. 10775 10776 *Ben Laurie* 10777 10778 * AES IGE mode speedup. 10779 10780 *Dean Gaudet (Google)* 10781 10782 * Add the Korean symmetric 128-bit cipher SEED (see 10783 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10784 add SEED ciphersuites from RFC 4162: 10785 10786 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10787 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10788 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10789 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10790 10791 To minimize changes between patchlevels in the OpenSSL 0.9.8 10792 series, SEED remains excluded from compilation unless OpenSSL 10793 is configured with 'enable-seed'. 10794 10795 *KISA, Bodo Moeller* 10796 10797 * Mitigate branch prediction attacks, which can be practical if a 10798 single processor is shared, allowing a spy process to extract 10799 information. For detailed background information, see 10800 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10801 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10802 and Necessary Software Countermeasures"). The core of the change 10803 are new versions BN_div_no_branch() and 10804 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10805 respectively, which are slower, but avoid the security-relevant 10806 conditional branches. These are automatically called by BN_div() 10807 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10808 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10809 remove a conditional branch. 10810 10811 BN_FLG_CONSTTIME is the new name for the previous 10812 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10813 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10814 in the exponent causes BN_mod_exp_mont() to use the alternative 10815 implementation in BN_mod_exp_mont_consttime().) The old name 10816 remains as a deprecated alias. 10817 10818 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10819 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10820 constant-time implementations for more than just exponentiation. 10821 Here too the old name is kept as a deprecated alias. 10822 10823 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10824 the BN_BLINDING structure gets an independent copy of the 10825 modulus. This means that the previous `BIGNUM *m` argument to 10826 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10827 essentially becomes `const BIGNUM *m`, although we can't actually 10828 change this in the header file before 0.9.9. It allows 10829 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10830 enable BN_FLG_CONSTTIME. 10831 10832 *Matthew D Wood (Intel Corp)* 10833 10834 * In the SSL/TLS server implementation, be strict about session ID 10835 context matching (which matters if an application uses a single 10836 external cache for different purposes). Previously, 10837 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10838 set. This did ensure strict client verification, but meant that, 10839 with applications using a single external cache for quite 10840 different requirements, clients could circumvent ciphersuite 10841 restrictions for a given session ID context by starting a session 10842 in a different context. 10843 10844 *Bodo Moeller* 10845 10846 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10847 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10848 authentication-only ciphersuites. 10849 10850 *Bodo Moeller* 10851 10852 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10853 not complete and could lead to a possible single byte overflow 10854 ([CVE-2007-5135]) [Ben Laurie] 10855 10856### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10857 10858 * Since AES128 and AES256 (and similarly Camellia128 and 10859 Camellia256) share a single mask bit in the logic of 10860 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10861 kludge to work properly if AES128 is available and AES256 isn't 10862 (or if Camellia128 is available and Camellia256 isn't). 10863 10864 *Victor Duchovni* 10865 10866 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10867 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10868 When a point or a seed is encoded in a BIT STRING, we need to 10869 prevent the removal of trailing zero bits to get the proper DER 10870 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10871 of a NamedBitList, for which trailing 0 bits need to be removed.) 10872 10873 *Bodo Moeller* 10874 10875 * Have SSL/TLS server implementation tolerate "mismatched" record 10876 protocol version while receiving ClientHello even if the 10877 ClientHello is fragmented. (The server can't insist on the 10878 particular protocol version it has chosen before the ServerHello 10879 message has informed the client about his choice.) 10880 10881 *Bodo Moeller* 10882 10883 * Add RFC 3779 support. 10884 10885 *Rob Austein for ARIN, Ben Laurie* 10886 10887 * Load error codes if they are not already present instead of using a 10888 static variable. This allows them to be cleanly unloaded and reloaded. 10889 Improve header file function name parsing. 10890 10891 *Steve Henson* 10892 10893 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10894 or CAPABILITY handshake as required by RFCs. 10895 10896 *Goetz Babin-Ebell* 10897 10898### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10899 10900 * Introduce limits to prevent malicious keys being able to 10901 cause a denial of service. ([CVE-2006-2940]) 10902 10903 *Steve Henson, Bodo Moeller* 10904 10905 * Fix ASN.1 parsing of certain invalid structures that can result 10906 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10907 10908 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10909 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10910 10911 * Fix SSL client code which could crash if connecting to a 10912 malicious SSLv2 server. ([CVE-2006-4343]) 10913 10914 *Tavis Ormandy and Will Drewry, Google Security Team* 10915 10916 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10917 match only those. Before that, "AES256-SHA" would be interpreted 10918 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10919 the same strength classification in 0.9.7h) as we currently only 10920 have a single AES bit in the ciphersuite description bitmap. 10921 That change, however, also applied to ciphersuite strings such as 10922 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10923 namely, SSL 2.0 ciphersuites in addition to the more common ones 10924 from SSL 3.0/TLS 1.0. 10925 10926 So we change the selection algorithm again: Naming an explicit 10927 ciphersuite selects this one ciphersuite, and any other similar 10928 ciphersuite (same bitmap) from *other* protocol versions. 10929 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10930 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10931 10932 Since SSL 2.0 does not have any ciphersuites for which the 10933 128/256 bit distinction would be relevant, this works for now. 10934 The proper fix will be to use different bits for AES128 and 10935 AES256, which would have avoided the problems from the beginning; 10936 however, bits are scarce, so we can only do this in a new release 10937 (not just a patchlevel) when we can change the SSL_CIPHER 10938 definition to split the single 'unsigned long mask' bitmap into 10939 multiple values to extend the available space. 10940 10941 *Bodo Moeller* 10942 10943### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10944 10945 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10946 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10947 10948 * Add AES IGE and biIGE modes. 10949 10950 *Ben Laurie* 10951 10952 * Change the Unix randomness entropy gathering to use poll() when 10953 possible instead of select(), since the latter has some 10954 undesirable limitations. 10955 10956 *Darryl Miles via Richard Levitte and Bodo Moeller* 10957 10958 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10959 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10960 cannot be implicitly activated as part of, e.g., the "AES" alias. 10961 However, please upgrade to OpenSSL 0.9.9[-dev] for 10962 non-experimental use of the ECC ciphersuites to get TLS extension 10963 support, which is required for curve and point format negotiation 10964 to avoid potential handshake problems. 10965 10966 *Bodo Moeller* 10967 10968 * Disable rogue ciphersuites: 10969 10970 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 10971 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 10972 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 10973 10974 The latter two were purportedly from 10975 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 10976 appear there. 10977 10978 Also deactivate the remaining ciphersuites from 10979 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 10980 unofficial, and the ID has long expired. 10981 10982 *Bodo Moeller* 10983 10984 * Fix RSA blinding Heisenbug (problems sometimes occurred on 10985 dual-core machines) and other potential thread-safety issues. 10986 10987 *Bodo Moeller* 10988 10989 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 10990 versions), which is now available for royalty-free use 10991 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 10992 Also, add Camellia TLS ciphersuites from RFC 4132. 10993 10994 To minimize changes between patchlevels in the OpenSSL 0.9.8 10995 series, Camellia remains excluded from compilation unless OpenSSL 10996 is configured with 'enable-camellia'. 10997 10998 *NTT* 10999 11000 * Disable the padding bug check when compression is in use. The padding 11001 bug check assumes the first packet is of even length, this is not 11002 necessarily true if compression is enabled and can result in false 11003 positives causing handshake failure. The actual bug test is ancient 11004 code so it is hoped that implementations will either have fixed it by 11005 now or any which still have the bug do not support compression. 11006 11007 *Steve Henson* 11008 11009### Changes between 0.9.8a and 0.9.8b [04 May 2006] 11010 11011 * When applying a cipher rule check to see if string match is an explicit 11012 cipher suite and only match that one cipher suite if it is. 11013 11014 *Steve Henson* 11015 11016 * Link in manifests for VC++ if needed. 11017 11018 *Austin Ziegler <halostatue@gmail.com>* 11019 11020 * Update support for ECC-based TLS ciphersuites according to 11021 draft-ietf-tls-ecc-12.txt with proposed changes (but without 11022 TLS extensions, which are supported starting with the 0.9.9 11023 branch, not in the OpenSSL 0.9.8 branch). 11024 11025 *Douglas Stebila* 11026 11027 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 11028 opaque EVP_CIPHER_CTX handling. 11029 11030 *Steve Henson* 11031 11032 * Fixes and enhancements to zlib compression code. We now only use 11033 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 11034 to conform with the standards mentioned here: 11035 <http://www.zlib.net/DLL_FAQ.txt> 11036 Static zlib linking now works on Windows and the new --with-zlib-include 11037 --with-zlib-lib options to Configure can be used to supply the location 11038 of the headers and library. Gracefully handle case where zlib library 11039 can't be loaded. 11040 11041 *Steve Henson* 11042 11043 * Several fixes and enhancements to the OID generation code. The old code 11044 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 11045 handle numbers larger than ULONG_MAX, truncated printing and had a 11046 non standard OBJ_obj2txt() behaviour. 11047 11048 *Steve Henson* 11049 11050 * Add support for building of engines under engine/ as shared libraries 11051 under VC++ build system. 11052 11053 *Steve Henson* 11054 11055 * Corrected the numerous bugs in the Win32 path splitter in DSO. 11056 Hopefully, we will not see any false combination of paths any more. 11057 11058 *Richard Levitte* 11059 11060### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 11061 11062 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11063 (part of SSL_OP_ALL). This option used to disable the 11064 countermeasure against man-in-the-middle protocol-version 11065 rollback in the SSL 2.0 server implementation, which is a bad 11066 idea. ([CVE-2005-2969]) 11067 11068 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11069 for Information Security, National Institute of Advanced Industrial 11070 Science and Technology [AIST], Japan)* 11071 11072 * Add two function to clear and return the verify parameter flags. 11073 11074 *Steve Henson* 11075 11076 * Keep cipherlists sorted in the source instead of sorting them at 11077 runtime, thus removing the need for a lock. 11078 11079 *Nils Larsch* 11080 11081 * Avoid some small subgroup attacks in Diffie-Hellman. 11082 11083 *Nick Mathewson and Ben Laurie* 11084 11085 * Add functions for well-known primes. 11086 11087 *Nick Mathewson* 11088 11089 * Extended Windows CE support. 11090 11091 *Satoshi Nakamura and Andy Polyakov* 11092 11093 * Initialize SSL_METHOD structures at compile time instead of during 11094 runtime, thus removing the need for a lock. 11095 11096 *Steve Henson* 11097 11098 * Make PKCS7_decrypt() work even if no certificate is supplied by 11099 attempting to decrypt each encrypted key in turn. Add support to 11100 smime utility. 11101 11102 *Steve Henson* 11103 11104### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 11105 11106[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 11107OpenSSL 0.9.8.] 11108 11109 * Add libcrypto.pc and libssl.pc for those who feel they need them. 11110 11111 *Richard Levitte* 11112 11113 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 11114 key into the same file any more. 11115 11116 *Richard Levitte* 11117 11118 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 11119 11120 *Andy Polyakov* 11121 11122 * Add -utf8 command line and config file option to 'ca'. 11123 11124 *Stefan <stf@udoma.org* 11125 11126 * Removed the macro des_crypt(), as it seems to conflict with some 11127 libraries. Use DES_crypt(). 11128 11129 *Richard Levitte* 11130 11131 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 11132 involves renaming the source and generated shared-libs for 11133 both. The engines will accept the corrected or legacy ids 11134 ('ncipher' and '4758_cca' respectively) when binding. NB, 11135 this only applies when building 'shared'. 11136 11137 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 11138 11139 * Add attribute functions to EVP_PKEY structure. Modify 11140 PKCS12_create() to recognize a CSP name attribute and 11141 use it. Make -CSP option work again in pkcs12 utility. 11142 11143 *Steve Henson* 11144 11145 * Add new functionality to the bn blinding code: 11146 - automatic re-creation of the BN_BLINDING parameters after 11147 a fixed number of uses (currently 32) 11148 - add new function for parameter creation 11149 - introduce flags to control the update behaviour of the 11150 BN_BLINDING parameters 11151 - hide BN_BLINDING structure 11152 Add a second BN_BLINDING slot to the RSA structure to improve 11153 performance when a single RSA object is shared among several 11154 threads. 11155 11156 *Nils Larsch* 11157 11158 * Add support for DTLS. 11159 11160 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 11161 11162 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 11163 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 11164 11165 *Walter Goulet* 11166 11167 * Remove buggy and incomplete DH cert support from 11168 ssl/ssl_rsa.c and ssl/s3_both.c 11169 11170 *Nils Larsch* 11171 11172 * Use SHA-1 instead of MD5 as the default digest algorithm for 11173 the `apps/openssl` commands. 11174 11175 *Nils Larsch* 11176 11177 * Compile clean with "-Wall -Wmissing-prototypes 11178 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 11179 DEBUG_SAFESTACK must also be set. 11180 11181 *Ben Laurie* 11182 11183 * Change ./Configure so that certain algorithms can be disabled by default. 11184 The new counterpiece to "no-xxx" is "enable-xxx". 11185 11186 The patented RC5 and MDC2 algorithms will now be disabled unless 11187 "enable-rc5" and "enable-mdc2", respectively, are specified. 11188 11189 (IDEA remains enabled despite being patented. This is because IDEA 11190 is frequently required for interoperability, and there is no license 11191 fee for non-commercial use. As before, "no-idea" can be used to 11192 avoid this algorithm.) 11193 11194 *Bodo Moeller* 11195 11196 * Add processing of proxy certificates (see RFC 3820). This work was 11197 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 11198 EGEE (Enabling Grids for E-science in Europe). 11199 11200 *Richard Levitte* 11201 11202 * RC4 performance overhaul on modern architectures/implementations, such 11203 as Intel P4, IA-64 and AMD64. 11204 11205 *Andy Polyakov* 11206 11207 * New utility extract-section.pl. This can be used specify an alternative 11208 section number in a pod file instead of having to treat each file as 11209 a separate case in Makefile. This can be done by adding two lines to the 11210 pod file: 11211 11212 =for comment openssl_section:XXX 11213 11214 The blank line is mandatory. 11215 11216 *Steve Henson* 11217 11218 * New arguments -certform, -keyform and -pass for s_client and s_server 11219 to allow alternative format key and certificate files and passphrase 11220 sources. 11221 11222 *Steve Henson* 11223 11224 * New structure X509_VERIFY_PARAM which combines current verify parameters, 11225 update associated structures and add various utility functions. 11226 11227 Add new policy related verify parameters, include policy checking in 11228 standard verify code. Enhance 'smime' application with extra parameters 11229 to support policy checking and print out. 11230 11231 *Steve Henson* 11232 11233 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 11234 Nehemiah processors. These extensions support AES encryption in hardware 11235 as well as RNG (though RNG support is currently disabled). 11236 11237 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 11238 11239 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 11240 11241 *Geoff Thorpe* 11242 11243 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 11244 11245 *Andy Polyakov and a number of other people* 11246 11247 * Improved PowerPC platform support. Most notably BIGNUM assembler 11248 implementation contributed by IBM. 11249 11250 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 11251 11252 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 11253 exponent rather than 'unsigned long'. There is a corresponding change to 11254 the new 'rsa_keygen' element of the RSA_METHOD structure. 11255 11256 *Jelte Jansen, Geoff Thorpe* 11257 11258 * Functionality for creating the initial serial number file is now 11259 moved from CA.pl to the 'ca' utility with a new option -create_serial. 11260 11261 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 11262 number file to 1, which is bound to cause problems. To avoid 11263 the problems while respecting compatibility between different 0.9.7 11264 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 11265 CA.pl for serial number initialization. With the new release 0.9.8, 11266 we can fix the problem directly in the 'ca' utility.) 11267 11268 *Steve Henson* 11269 11270 * Reduced header interdependencies by declaring more opaque objects in 11271 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 11272 give fewer recursive includes, which could break lazy source code - so 11273 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 11274 developers should define this symbol when building and using openssl to 11275 ensure they track the recommended behaviour, interfaces, [etc], but 11276 backwards-compatible behaviour prevails when this isn't defined. 11277 11278 *Geoff Thorpe* 11279 11280 * New function X509_POLICY_NODE_print() which prints out policy nodes. 11281 11282 *Steve Henson* 11283 11284 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 11285 This will generate a random key of the appropriate length based on the 11286 cipher context. The EVP_CIPHER can provide its own random key generation 11287 routine to support keys of a specific form. This is used in the des and 11288 3des routines to generate a key of the correct parity. Update S/MIME 11289 code to use new functions and hence generate correct parity DES keys. 11290 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 11291 valid (weak or incorrect parity). 11292 11293 *Steve Henson* 11294 11295 * Add a local set of CRLs that can be used by X509_verify_cert() as well 11296 as looking them up. This is useful when the verified structure may contain 11297 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 11298 present unless the new PKCS7_NO_CRL flag is asserted. 11299 11300 *Steve Henson* 11301 11302 * Extend ASN1 oid configuration module. It now additionally accepts the 11303 syntax: 11304 11305 shortName = some long name, 1.2.3.4 11306 11307 *Steve Henson* 11308 11309 * Reimplemented the BN_CTX implementation. There is now no more static 11310 limitation on the number of variables it can handle nor the depth of the 11311 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 11312 information can now expand as required, and rather than having a single 11313 static array of bignums, BN_CTX now uses a linked-list of such arrays 11314 allowing it to expand on demand whilst maintaining the usefulness of 11315 BN_CTX's "bundling". 11316 11317 *Geoff Thorpe* 11318 11319 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 11320 to allow all RSA operations to function using a single BN_CTX. 11321 11322 *Geoff Thorpe* 11323 11324 * Preliminary support for certificate policy evaluation and checking. This 11325 is initially intended to pass the tests outlined in "Conformance Testing 11326 of Relying Party Client Certificate Path Processing Logic" v1.07. 11327 11328 *Steve Henson* 11329 11330 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 11331 remained unused and not that useful. A variety of other little bignum 11332 tweaks and fixes have also been made continuing on from the audit (see 11333 below). 11334 11335 *Geoff Thorpe* 11336 11337 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 11338 associated ASN1, EVP and SSL functions and old ASN1 macros. 11339 11340 *Richard Levitte* 11341 11342 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 11343 and this should never fail. So the return value from the use of 11344 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11345 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11346 11347 *Geoff Thorpe* 11348 11349 * BN_CTX_get() should return zero-valued bignums, providing the same 11350 initialised value as BN_new(). 11351 11352 *Geoff Thorpe, suggested by Ulf Möller* 11353 11354 * Support for inhibitAnyPolicy certificate extension. 11355 11356 *Steve Henson* 11357 11358 * An audit of the BIGNUM code is underway, for which debugging code is 11359 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11360 is considered valid when processing BIGNUMs, and causes execution to 11361 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11362 further steps are taken to deliberately pollute unused data in BIGNUM 11363 structures to try and expose faulty code further on. For now, openssl will 11364 (in its default mode of operation) continue to tolerate the inconsistent 11365 forms that it has tolerated in the past, but authors and packagers should 11366 consider trying openssl and their own applications when compiled with 11367 these debugging symbols defined. It will help highlight potential bugs in 11368 their own code, and will improve the test coverage for OpenSSL itself. At 11369 some point, these tighter rules will become openssl's default to improve 11370 maintainability, though the assert()s and other overheads will remain only 11371 in debugging configurations. See bn.h for more details. 11372 11373 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11374 11375 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11376 that can only be obtained through BN_CTX_new() (which implicitly 11377 initialises it). The presence of this function only made it possible 11378 to overwrite an existing structure (and cause memory leaks). 11379 11380 *Geoff Thorpe* 11381 11382 * Because of the callback-based approach for implementing LHASH as a 11383 template type, lh_insert() adds opaque objects to hash-tables and 11384 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11385 to clean up those corresponding objects before destroying the hash table 11386 (and losing the object pointers). So some over-zealous constifications in 11387 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11388 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11389 prototyped to have "const" restrictions on the object pointers they are 11390 given (and so aren't required to cast them away any more). 11391 11392 *Geoff Thorpe* 11393 11394 * The tmdiff.h API was so ugly and minimal that our own timing utility 11395 (speed) prefers to use its own implementation. The two implementations 11396 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11397 its object type properly exposed (MS_TM) instead of casting to/from 11398 `char *`. This may still change yet if someone realises MS_TM and 11399 `ms_time_***` 11400 aren't necessarily the greatest nomenclatures - but this is what was used 11401 internally to the implementation so I've used that for now. 11402 11403 *Geoff Thorpe* 11404 11405 * Ensure that deprecated functions do not get compiled when 11406 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11407 the self-tests were still using deprecated key-generation functions so 11408 these have been updated also. 11409 11410 *Geoff Thorpe* 11411 11412 * Reorganise PKCS#7 code to separate the digest location functionality 11413 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11414 New function PKCS7_set_digest() to set the digest type for PKCS#7 11415 digestedData type. Add additional code to correctly generate the 11416 digestedData type and add support for this type in PKCS7 initialization 11417 functions. 11418 11419 *Steve Henson* 11420 11421 * New function PKCS7_set0_type_other() this initializes a PKCS7 11422 structure of type "other". 11423 11424 *Steve Henson* 11425 11426 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11427 sure the loop does correctly stop and breaking ("division by zero") 11428 modulus operations are not performed. The (pre-generated) prime 11429 table crypto/bn/bn_prime.h was already correct, but it could not be 11430 re-generated on some platforms because of the "division by zero" 11431 situation in the script. 11432 11433 *Ralf S. Engelschall* 11434 11435 * Update support for ECC-based TLS ciphersuites according to 11436 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11437 SHA-1 now is only used for "small" curves (where the 11438 representation of a field element takes up to 24 bytes); for 11439 larger curves, the field element resulting from ECDH is directly 11440 used as premaster secret. 11441 11442 *Douglas Stebila (Sun Microsystems Laboratories)* 11443 11444 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11445 curve secp160r1 to the tests. 11446 11447 *Douglas Stebila (Sun Microsystems Laboratories)* 11448 11449 * Add the possibility to load symbols globally with DSO. 11450 11451 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11452 11453 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11454 control of the error stack. 11455 11456 *Richard Levitte* 11457 11458 * Add support for STORE in ENGINE. 11459 11460 *Richard Levitte* 11461 11462 * Add the STORE type. The intention is to provide a common interface 11463 to certificate and key stores, be they simple file-based stores, or 11464 HSM-type store, or LDAP stores, or... 11465 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11466 11467 *Richard Levitte* 11468 11469 * Add a generic structure called OPENSSL_ITEM. This can be used to 11470 pass a list of arguments to any function as well as provide a way 11471 for a function to pass data back to the caller. 11472 11473 *Richard Levitte* 11474 11475 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11476 works like BUF_strdup() but can be used to duplicate a portion of 11477 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11478 a memory area. 11479 11480 *Richard Levitte* 11481 11482 * Add the function sk_find_ex() which works like sk_find(), but will 11483 return an index to an element even if an exact match couldn't be 11484 found. The index is guaranteed to point at the element where the 11485 searched-for key would be inserted to preserve sorting order. 11486 11487 *Richard Levitte* 11488 11489 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11490 takes an extra flags argument for optional functionality. Currently, 11491 the following flags are defined: 11492 11493 OBJ_BSEARCH_VALUE_ON_NOMATCH 11494 This one gets OBJ_bsearch_ex() to return a pointer to the first 11495 element where the comparing function returns a negative or zero 11496 number. 11497 11498 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11499 This one gets OBJ_bsearch_ex() to return a pointer to the first 11500 element where the comparing function returns zero. This is useful 11501 if there are more than one element where the comparing function 11502 returns zero. 11503 11504 *Richard Levitte* 11505 11506 * Make it possible to create self-signed certificates with 'openssl ca' 11507 in such a way that the self-signed certificate becomes part of the 11508 CA database and uses the same mechanisms for serial number generation 11509 as all other certificate signing. The new flag '-selfsign' enables 11510 this functionality. Adapt CA.sh and CA.pl.in. 11511 11512 *Richard Levitte* 11513 11514 * Add functionality to check the public key of a certificate request 11515 against a given private. This is useful to check that a certificate 11516 request can be signed by that key (self-signing). 11517 11518 *Richard Levitte* 11519 11520 * Make it possible to have multiple active certificates with the same 11521 subject in the CA index file. This is done only if the keyword 11522 'unique_subject' is set to 'no' in the main CA section (default 11523 if 'CA_default') of the configuration file. The value is saved 11524 with the database itself in a separate index attribute file, 11525 named like the index file with '.attr' appended to the name. 11526 11527 *Richard Levitte* 11528 11529 * Generate multi-valued AVAs using '+' notation in config files for 11530 req and dirName. 11531 11532 *Steve Henson* 11533 11534 * Support for nameConstraints certificate extension. 11535 11536 *Steve Henson* 11537 11538 * Support for policyConstraints certificate extension. 11539 11540 *Steve Henson* 11541 11542 * Support for policyMappings certificate extension. 11543 11544 *Steve Henson* 11545 11546 * Make sure the default DSA_METHOD implementation only uses its 11547 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11548 and change its own handlers to be NULL so as to remove unnecessary 11549 indirection. This lets alternative implementations fallback to the 11550 default implementation more easily. 11551 11552 *Geoff Thorpe* 11553 11554 * Support for directoryName in GeneralName related extensions 11555 in config files. 11556 11557 *Steve Henson* 11558 11559 * Make it possible to link applications using Makefile.shared. 11560 Make that possible even when linking against static libraries! 11561 11562 *Richard Levitte* 11563 11564 * Support for single pass processing for S/MIME signing. This now 11565 means that S/MIME signing can be done from a pipe, in addition 11566 cleartext signing (multipart/signed type) is effectively streaming 11567 and the signed data does not need to be all held in memory. 11568 11569 This is done with a new flag PKCS7_STREAM. When this flag is set 11570 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11571 is done after the data is output (and digests calculated) in 11572 SMIME_write_PKCS7(). 11573 11574 *Steve Henson* 11575 11576 * Add full support for -rpath/-R, both in shared libraries and 11577 applications, at least on the platforms where it's known how 11578 to do it. 11579 11580 *Richard Levitte* 11581 11582 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11583 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11584 will now compute a table of multiples of the generator that 11585 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11586 faster (notably in the case of a single point multiplication, 11587 scalar * generator). 11588 11589 *Nils Larsch, Bodo Moeller* 11590 11591 * IPv6 support for certificate extensions. The various extensions 11592 which use the IP:a.b.c.d can now take IPv6 addresses using the 11593 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11594 correctly. 11595 11596 *Steve Henson* 11597 11598 * Added an ENGINE that implements RSA by performing private key 11599 exponentiations with the GMP library. The conversions to and from 11600 GMP's mpz_t format aren't optimised nor are any montgomery forms 11601 cached, and on x86 it appears OpenSSL's own performance has caught up. 11602 However there are likely to be other architectures where GMP could 11603 provide a boost. This ENGINE is not built in by default, but it can be 11604 specified at Configure time and should be accompanied by the necessary 11605 linker additions, eg; 11606 ./config -DOPENSSL_USE_GMP -lgmp 11607 11608 *Geoff Thorpe* 11609 11610 * "openssl engine" will not display ENGINE/DSO load failure errors when 11611 testing availability of engines with "-t" - the old behaviour is 11612 produced by increasing the feature's verbosity with "-tt". 11613 11614 *Geoff Thorpe* 11615 11616 * ECDSA routines: under certain error conditions uninitialized BN objects 11617 could be freed. Solution: make sure initialization is performed early 11618 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11619 via PR#459) 11620 11621 *Lutz Jaenicke* 11622 11623 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11624 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11625 software implementations. For DSA and DH, parameter generation can 11626 also be overridden by providing the appropriate method callbacks. 11627 11628 *Geoff Thorpe* 11629 11630 * Change the "progress" mechanism used in key-generation and 11631 primality testing to functions that take a new BN_GENCB pointer in 11632 place of callback/argument pairs. The new API functions have `_ex` 11633 postfixes and the older functions are reimplemented as wrappers for 11634 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11635 declarations of the old functions to help (graceful) attempts to 11636 migrate to the new functions. Also, the new key-generation API 11637 functions operate on a caller-supplied key-structure and return 11638 success/failure rather than returning a key or NULL - this is to 11639 help make "keygen" another member function of RSA_METHOD etc. 11640 11641 Example for using the new callback interface: 11642 11643 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11644 void *my_arg = ...; 11645 BN_GENCB my_cb; 11646 11647 BN_GENCB_set(&my_cb, my_callback, my_arg); 11648 11649 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11650 /* For the meaning of a, b in calls to my_callback(), see the 11651 * documentation of the function that calls the callback. 11652 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11653 * my_callback should return 1 if it wants BN_is_prime_ex() 11654 * to continue, or 0 to stop. 11655 */ 11656 11657 *Geoff Thorpe* 11658 11659 * Change the ZLIB compression method to be stateful, and make it 11660 available to TLS with the number defined in 11661 draft-ietf-tls-compression-04.txt. 11662 11663 *Richard Levitte* 11664 11665 * Add the ASN.1 structures and functions for CertificatePair, which 11666 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11667 11668 CertificatePair ::= SEQUENCE { 11669 forward [0] Certificate OPTIONAL, 11670 reverse [1] Certificate OPTIONAL, 11671 -- at least one of the pair shall be present -- } 11672 11673 Also implement the PEM functions to read and write certificate 11674 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11675 11676 This needed to be defined, mostly for the sake of the LDAP 11677 attribute crossCertificatePair, but may prove useful elsewhere as 11678 well. 11679 11680 *Richard Levitte* 11681 11682 * Make it possible to inhibit symlinking of shared libraries in 11683 Makefile.shared, for Cygwin's sake. 11684 11685 *Richard Levitte* 11686 11687 * Extend the BIGNUM API by creating a function 11688 void BN_set_negative(BIGNUM *a, int neg); 11689 and a macro that behave like 11690 int BN_is_negative(const BIGNUM *a); 11691 11692 to avoid the need to access 'a->neg' directly in applications. 11693 11694 *Nils Larsch* 11695 11696 * Implement fast modular reduction for pseudo-Mersenne primes 11697 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11698 EC_GROUP_new_curve_GFp() will now automatically use this 11699 if applicable. 11700 11701 *Nils Larsch <nla@trustcenter.de>* 11702 11703 * Add new lock type (CRYPTO_LOCK_BN). 11704 11705 *Bodo Moeller* 11706 11707 * Change the ENGINE framework to automatically load engines 11708 dynamically from specific directories unless they could be 11709 found to already be built in or loaded. Move all the 11710 current engines except for the cryptodev one to a new 11711 directory engines/. 11712 The engines in engines/ are built as shared libraries if 11713 the "shared" options was given to ./Configure or ./config. 11714 Otherwise, they are inserted in libcrypto.a. 11715 /usr/local/ssl/engines is the default directory for dynamic 11716 engines, but that can be overridden at configure time through 11717 the usual use of --prefix and/or --openssldir, and at run 11718 time with the environment variable OPENSSL_ENGINES. 11719 11720 *Geoff Thorpe and Richard Levitte* 11721 11722 * Add Makefile.shared, a helper makefile to build shared 11723 libraries. Adapt Makefile.org. 11724 11725 *Richard Levitte* 11726 11727 * Add version info to Win32 DLLs. 11728 11729 *Peter 'Luna' Runestig" <peter@runestig.com>* 11730 11731 * Add new 'medium level' PKCS#12 API. Certificates and keys 11732 can be added using this API to created arbitrary PKCS#12 11733 files while avoiding the low-level API. 11734 11735 New options to PKCS12_create(), key or cert can be NULL and 11736 will then be omitted from the output file. The encryption 11737 algorithm NIDs can be set to -1 for no encryption, the mac 11738 iteration count can be set to 0 to omit the mac. 11739 11740 Enhance pkcs12 utility by making the -nokeys and -nocerts 11741 options work when creating a PKCS#12 file. New option -nomac 11742 to omit the mac, NONE can be set for an encryption algorithm. 11743 New code is modified to use the enhanced PKCS12_create() 11744 instead of the low-level API. 11745 11746 *Steve Henson* 11747 11748 * Extend ASN1 encoder to support indefinite length constructed 11749 encoding. This can output sequences tags and octet strings in 11750 this form. Modify pk7_asn1.c to support indefinite length 11751 encoding. This is experimental and needs additional code to 11752 be useful, such as an ASN1 bio and some enhanced streaming 11753 PKCS#7 code. 11754 11755 Extend template encode functionality so that tagging is passed 11756 down to the template encoder. 11757 11758 *Steve Henson* 11759 11760 * Let 'openssl req' fail if an argument to '-newkey' is not 11761 recognized instead of using RSA as a default. 11762 11763 *Bodo Moeller* 11764 11765 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11766 As these are not official, they are not included in "ALL"; 11767 the "ECCdraft" ciphersuite group alias can be used to select them. 11768 11769 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11770 11771 * Add ECDH engine support. 11772 11773 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11774 11775 * Add ECDH in new directory crypto/ecdh/. 11776 11777 *Douglas Stebila (Sun Microsystems Laboratories)* 11778 11779 * Let BN_rand_range() abort with an error after 100 iterations 11780 without success (which indicates a broken PRNG). 11781 11782 *Bodo Moeller* 11783 11784 * Change BN_mod_sqrt() so that it verifies that the input value 11785 is really the square of the return value. (Previously, 11786 BN_mod_sqrt would show GIGO behaviour.) 11787 11788 *Bodo Moeller* 11789 11790 * Add named elliptic curves over binary fields from X9.62, SECG, 11791 and WAP/WTLS; add OIDs that were still missing. 11792 11793 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11794 11795 * Extend the EC library for elliptic curves over binary fields 11796 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11797 New EC_METHOD: 11798 11799 EC_GF2m_simple_method 11800 11801 New API functions: 11802 11803 EC_GROUP_new_curve_GF2m 11804 EC_GROUP_set_curve_GF2m 11805 EC_GROUP_get_curve_GF2m 11806 EC_POINT_set_affine_coordinates_GF2m 11807 EC_POINT_get_affine_coordinates_GF2m 11808 EC_POINT_set_compressed_coordinates_GF2m 11809 11810 Point compression for binary fields is disabled by default for 11811 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11812 enable it). 11813 11814 As binary polynomials are represented as BIGNUMs, various members 11815 of the EC_GROUP and EC_POINT data structures can be shared 11816 between the implementations for prime fields and binary fields; 11817 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11818 are essentially identical to their `..._GFp` counterparts. 11819 (For simplicity, the `..._GFp` prefix has been dropped from 11820 various internal method names.) 11821 11822 An internal 'field_div' method (similar to 'field_mul' and 11823 'field_sqr') has been added; this is used only for binary fields. 11824 11825 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11826 11827 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11828 through methods ('mul', 'precompute_mult'). 11829 11830 The generic implementations (now internally called 'ec_wNAF_mul' 11831 and 'ec_wNAF_precomputed_mult') remain the default if these 11832 methods are undefined. 11833 11834 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11835 11836 * New function EC_GROUP_get_degree, which is defined through 11837 EC_METHOD. For curves over prime fields, this returns the bit 11838 length of the modulus. 11839 11840 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11841 11842 * New functions EC_GROUP_dup, EC_POINT_dup. 11843 (These simply call ..._new and ..._copy). 11844 11845 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11846 11847 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11848 Polynomials are represented as BIGNUMs (where the sign bit is not 11849 used) in the following functions [macros]: 11850 11851 BN_GF2m_add 11852 BN_GF2m_sub [= BN_GF2m_add] 11853 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11854 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11855 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11856 BN_GF2m_mod_inv 11857 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11858 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11859 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11860 BN_GF2m_cmp [= BN_ucmp] 11861 11862 (Note that only the 'mod' functions are actually for fields GF(2^m). 11863 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11864 11865 For some functions, an the irreducible polynomial defining a 11866 field can be given as an 'unsigned int[]' with strictly 11867 decreasing elements giving the indices of those bits that are set; 11868 i.e., p[] represents the polynomial 11869 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11870 where 11871 p[0] > p[1] > ... > p[k] = 0. 11872 This applies to the following functions: 11873 11874 BN_GF2m_mod_arr 11875 BN_GF2m_mod_mul_arr 11876 BN_GF2m_mod_sqr_arr 11877 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11878 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11879 BN_GF2m_mod_exp_arr 11880 BN_GF2m_mod_sqrt_arr 11881 BN_GF2m_mod_solve_quad_arr 11882 BN_GF2m_poly2arr 11883 BN_GF2m_arr2poly 11884 11885 Conversion can be performed by the following functions: 11886 11887 BN_GF2m_poly2arr 11888 BN_GF2m_arr2poly 11889 11890 bntest.c has additional tests for binary polynomial arithmetic. 11891 11892 Two implementations for BN_GF2m_mod_div() are available. 11893 The default algorithm simply uses BN_GF2m_mod_inv() and 11894 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11895 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11896 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11897 11898 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11899 11900 * Add new error code 'ERR_R_DISABLED' that can be used when some 11901 functionality is disabled at compile-time. 11902 11903 *Douglas Stebila <douglas.stebila@sun.com>* 11904 11905 * Change default behaviour of 'openssl asn1parse' so that more 11906 information is visible when viewing, e.g., a certificate: 11907 11908 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11909 mode the content of non-printable OCTET STRINGs is output in a 11910 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11911 avoid the appearance of a printable string. 11912 11913 *Nils Larsch <nla@trustcenter.de>* 11914 11915 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11916 functions 11917 EC_GROUP_set_asn1_flag() 11918 EC_GROUP_get_asn1_flag() 11919 EC_GROUP_set_point_conversion_form() 11920 EC_GROUP_get_point_conversion_form() 11921 These control ASN1 encoding details: 11922 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11923 has been set to OPENSSL_EC_NAMED_CURVE. 11924 - Points are encoded in uncompressed form by default; options for 11925 asn1_for are as for point2oct, namely 11926 POINT_CONVERSION_COMPRESSED 11927 POINT_CONVERSION_UNCOMPRESSED 11928 POINT_CONVERSION_HYBRID 11929 11930 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11931 functions 11932 EC_GROUP_set_seed() 11933 EC_GROUP_get0_seed() 11934 EC_GROUP_get_seed_len() 11935 This is used only for ASN1 purposes (so far). 11936 11937 *Nils Larsch <nla@trustcenter.de>* 11938 11939 * Add 'field_type' member to EC_METHOD, which holds the NID 11940 of the appropriate field type OID. The new function 11941 EC_METHOD_get_field_type() returns this value. 11942 11943 *Nils Larsch <nla@trustcenter.de>* 11944 11945 * Add functions 11946 EC_POINT_point2bn() 11947 EC_POINT_bn2point() 11948 EC_POINT_point2hex() 11949 EC_POINT_hex2point() 11950 providing useful interfaces to EC_POINT_point2oct() and 11951 EC_POINT_oct2point(). 11952 11953 *Nils Larsch <nla@trustcenter.de>* 11954 11955 * Change internals of the EC library so that the functions 11956 EC_GROUP_set_generator() 11957 EC_GROUP_get_generator() 11958 EC_GROUP_get_order() 11959 EC_GROUP_get_cofactor() 11960 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11961 to methods, which would lead to unnecessary code duplication when 11962 adding different types of curves. 11963 11964 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11965 11966 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11967 arithmetic, and such that modified wNAFs are generated 11968 (which avoid length expansion in many cases). 11969 11970 *Bodo Moeller* 11971 11972 * Add a function EC_GROUP_check_discriminant() (defined via 11973 EC_METHOD) that verifies that the curve discriminant is non-zero. 11974 11975 Add a function EC_GROUP_check() that makes some sanity tests 11976 on a EC_GROUP, its generator and order. This includes 11977 EC_GROUP_check_discriminant(). 11978 11979 *Nils Larsch <nla@trustcenter.de>* 11980 11981 * Add ECDSA in new directory crypto/ecdsa/. 11982 11983 Add applications 'openssl ecparam' and 'openssl ecdsa' 11984 (these are based on 'openssl dsaparam' and 'openssl dsa'). 11985 11986 ECDSA support is also included in various other files across the 11987 library. Most notably, 11988 - 'openssl req' now has a '-newkey ecdsa:file' option; 11989 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 11990 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 11991 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 11992 them suitable for ECDSA where domain parameters must be 11993 extracted before the specific public key; 11994 - ECDSA engine support has been added. 11995 11996 *Nils Larsch <nla@trustcenter.de>* 11997 11998 * Include some named elliptic curves, and add OIDs from X9.62, 11999 SECG, and WAP/WTLS. Each curve can be obtained from the new 12000 function 12001 EC_GROUP_new_by_curve_name(), 12002 and the list of available named curves can be obtained with 12003 EC_get_builtin_curves(). 12004 Also add a 'curve_name' member to EC_GROUP objects, which can be 12005 accessed via 12006 EC_GROUP_set_curve_name() 12007 EC_GROUP_get_curve_name() 12008 12009 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 12010 12011 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 12012 was actually never needed) and in BN_mul(). The removal in BN_mul() 12013 required a small change in bn_mul_part_recursive() and the addition 12014 of the functions bn_cmp_part_words(), bn_sub_part_words() and 12015 bn_add_part_words(), which do the same thing as bn_cmp_words(), 12016 bn_sub_words() and bn_add_words() except they take arrays with 12017 differing sizes. 12018 12019 *Richard Levitte* 12020 12021### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 12022 12023 * Cleanse PEM buffers before freeing them since they may contain 12024 sensitive data. 12025 12026 *Benjamin Bennett <ben@psc.edu>* 12027 12028 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 12029 a ciphersuite string such as "DEFAULT:RSA" cannot enable 12030 authentication-only ciphersuites. 12031 12032 *Bodo Moeller* 12033 12034 * Since AES128 and AES256 share a single mask bit in the logic of 12035 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 12036 kludge to work properly if AES128 is available and AES256 isn't. 12037 12038 *Victor Duchovni* 12039 12040 * Expand security boundary to match 1.1.1 module. 12041 12042 *Steve Henson* 12043 12044 * Remove redundant features: hash file source, editing of test vectors 12045 modify fipsld to use external fips_premain.c signature. 12046 12047 *Steve Henson* 12048 12049 * New perl script mkfipsscr.pl to create shell scripts or batch files to 12050 run algorithm test programs. 12051 12052 *Steve Henson* 12053 12054 * Make algorithm test programs more tolerant of whitespace. 12055 12056 *Steve Henson* 12057 12058 * Have SSL/TLS server implementation tolerate "mismatched" record 12059 protocol version while receiving ClientHello even if the 12060 ClientHello is fragmented. (The server can't insist on the 12061 particular protocol version it has chosen before the ServerHello 12062 message has informed the client about his choice.) 12063 12064 *Bodo Moeller* 12065 12066 * Load error codes if they are not already present instead of using a 12067 static variable. This allows them to be cleanly unloaded and reloaded. 12068 12069 *Steve Henson* 12070 12071### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 12072 12073 * Introduce limits to prevent malicious keys being able to 12074 cause a denial of service. ([CVE-2006-2940]) 12075 12076 *Steve Henson, Bodo Moeller* 12077 12078 * Fix ASN.1 parsing of certain invalid structures that can result 12079 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 12080 12081 * Fix buffer overflow in SSL_get_shared_ciphers() function. 12082 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 12083 12084 * Fix SSL client code which could crash if connecting to a 12085 malicious SSLv2 server. ([CVE-2006-4343]) 12086 12087 *Tavis Ormandy and Will Drewry, Google Security Team* 12088 12089 * Change ciphersuite string processing so that an explicit 12090 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 12091 will no longer include "AES128-SHA"), and any other similar 12092 ciphersuite (same bitmap) from *other* protocol versions (so that 12093 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 12094 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 12095 changes from 0.9.8b and 0.9.8d. 12096 12097 *Bodo Moeller* 12098 12099### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 12100 12101 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 12102 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 12103 12104 * Change the Unix randomness entropy gathering to use poll() when 12105 possible instead of select(), since the latter has some 12106 undesirable limitations. 12107 12108 *Darryl Miles via Richard Levitte and Bodo Moeller* 12109 12110 * Disable rogue ciphersuites: 12111 12112 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 12113 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 12114 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 12115 12116 The latter two were purportedly from 12117 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 12118 appear there. 12119 12120 Also deactivate the remaining ciphersuites from 12121 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 12122 unofficial, and the ID has long expired. 12123 12124 *Bodo Moeller* 12125 12126 * Fix RSA blinding Heisenbug (problems sometimes occurred on 12127 dual-core machines) and other potential thread-safety issues. 12128 12129 *Bodo Moeller* 12130 12131### Changes between 0.9.7i and 0.9.7j [04 May 2006] 12132 12133 * Adapt fipsld and the build system to link against the validated FIPS 12134 module in FIPS mode. 12135 12136 *Steve Henson* 12137 12138 * Fixes for VC++ 2005 build under Windows. 12139 12140 *Steve Henson* 12141 12142 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 12143 from a Windows bash shell such as MSYS. It is autodetected from the 12144 "config" script when run from a VC++ environment. Modify standard VC++ 12145 build to use fipscanister.o from the GNU make build. 12146 12147 *Steve Henson* 12148 12149### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 12150 12151 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 12152 The value now differs depending on if you build for FIPS or not. 12153 BEWARE! A program linked with a shared FIPSed libcrypto can't be 12154 safely run with a non-FIPSed libcrypto, as it may crash because of 12155 the difference induced by this change. 12156 12157 *Andy Polyakov* 12158 12159### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 12160 12161 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 12162 (part of SSL_OP_ALL). This option used to disable the 12163 countermeasure against man-in-the-middle protocol-version 12164 rollback in the SSL 2.0 server implementation, which is a bad 12165 idea. ([CVE-2005-2969]) 12166 12167 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 12168 for Information Security, National Institute of Advanced Industrial 12169 Science and Technology [AIST, Japan)]* 12170 12171 * Minimal support for X9.31 signatures and PSS padding modes. This is 12172 mainly for FIPS compliance and not fully integrated at this stage. 12173 12174 *Steve Henson* 12175 12176 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 12177 the exponentiation using a fixed-length exponent. (Otherwise, 12178 the information leaked through timing could expose the secret key 12179 after many signatures; cf. Bleichenbacher's attack on DSA with 12180 biased k.) 12181 12182 *Bodo Moeller* 12183 12184 * Make a new fixed-window mod_exp implementation the default for 12185 RSA, DSA, and DH private-key operations so that the sequence of 12186 squares and multiplies and the memory access pattern are 12187 independent of the particular secret key. This will mitigate 12188 cache-timing and potential related attacks. 12189 12190 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 12191 and this is automatically used by BN_mod_exp_mont() if the new flag 12192 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 12193 will use this BN flag for private exponents unless the flag 12194 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 12195 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 12196 12197 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 12198 12199 * Change the client implementation for SSLv23_method() and 12200 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 12201 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 12202 (Previously, the SSL 2.0 backwards compatible Client Hello 12203 message format would be used even with SSL_OP_NO_SSLv2.) 12204 12205 *Bodo Moeller* 12206 12207 * Add support for smime-type MIME parameter in S/MIME messages which some 12208 clients need. 12209 12210 *Steve Henson* 12211 12212 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 12213 a threadsafe manner. Modify rsa code to use new function and add calls 12214 to dsa and dh code (which had race conditions before). 12215 12216 *Steve Henson* 12217 12218 * Include the fixed error library code in the C error file definitions 12219 instead of fixing them up at runtime. This keeps the error code 12220 structures constant. 12221 12222 *Steve Henson* 12223 12224### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 12225 12226[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 12227OpenSSL 0.9.8.] 12228 12229 * Fixes for newer kerberos headers. NB: the casts are needed because 12230 the 'length' field is signed on one version and unsigned on another 12231 with no (?) obvious way to tell the difference, without these VC++ 12232 complains. Also the "definition" of FAR (blank) is no longer included 12233 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 12234 some needed definitions. 12235 12236 *Steve Henson* 12237 12238 * Undo Cygwin change. 12239 12240 *Ulf Möller* 12241 12242 * Added support for proxy certificates according to RFC 3820. 12243 Because they may be a security thread to unaware applications, 12244 they must be explicitly allowed in run-time. See 12245 docs/HOWTO/proxy_certificates.txt for further information. 12246 12247 *Richard Levitte* 12248 12249### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 12250 12251 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 12252 server and client random values. Previously 12253 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 12254 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 12255 12256 This change has negligible security impact because: 12257 12258 1. Server and client random values still have 24 bytes of pseudo random 12259 data. 12260 12261 2. Server and client random values are sent in the clear in the initial 12262 handshake. 12263 12264 3. The master secret is derived using the premaster secret (48 bytes in 12265 size for static RSA ciphersuites) as well as client server and random 12266 values. 12267 12268 The OpenSSL team would like to thank the UK NISCC for bringing this issue 12269 to our attention. 12270 12271 *Stephen Henson, reported by UK NISCC* 12272 12273 * Use Windows randomness collection on Cygwin. 12274 12275 *Ulf Möller* 12276 12277 * Fix hang in EGD/PRNGD query when communication socket is closed 12278 prematurely by EGD/PRNGD. 12279 12280 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 12281 12282 * Prompt for pass phrases when appropriate for PKCS12 input format. 12283 12284 *Steve Henson* 12285 12286 * Back-port of selected performance improvements from development 12287 branch, as well as improved support for PowerPC platforms. 12288 12289 *Andy Polyakov* 12290 12291 * Add lots of checks for memory allocation failure, error codes to indicate 12292 failure and freeing up memory if a failure occurs. 12293 12294 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 12295 12296 * Add new -passin argument to dgst. 12297 12298 *Steve Henson* 12299 12300 * Perform some character comparisons of different types in X509_NAME_cmp: 12301 this is needed for some certificates that re-encode DNs into UTF8Strings 12302 (in violation of RFC3280) and can't or won't issue name rollover 12303 certificates. 12304 12305 *Steve Henson* 12306 12307 * Make an explicit check during certificate validation to see that 12308 the CA setting in each certificate on the chain is correct. As a 12309 side effect always do the following basic checks on extensions, 12310 not just when there's an associated purpose to the check: 12311 12312 - if there is an unhandled critical extension (unless the user 12313 has chosen to ignore this fault) 12314 - if the path length has been exceeded (if one is set at all) 12315 - that certain extensions fit the associated purpose (if one has 12316 been given) 12317 12318 *Richard Levitte* 12319 12320### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 12321 12322 * Avoid a race condition when CRLs are checked in a multi threaded 12323 environment. This would happen due to the reordering of the revoked 12324 entries during signature checking and serial number lookup. Now the 12325 encoding is cached and the serial number sort performed under a lock. 12326 Add new STACK function sk_is_sorted(). 12327 12328 *Steve Henson* 12329 12330 * Add Delta CRL to the extension code. 12331 12332 *Steve Henson* 12333 12334 * Various fixes to s3_pkt.c so alerts are sent properly. 12335 12336 *David Holmes <d.holmes@f5.com>* 12337 12338 * Reduce the chances of duplicate issuer name and serial numbers (in 12339 violation of RFC3280) using the OpenSSL certificate creation utilities. 12340 This is done by creating a random 64 bit value for the initial serial 12341 number when a serial number file is created or when a self signed 12342 certificate is created using 'openssl req -x509'. The initial serial 12343 number file is created using 'openssl x509 -next_serial' in CA.pl 12344 rather than being initialized to 1. 12345 12346 *Steve Henson* 12347 12348### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12349 12350 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12351 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12352 12353 *Joe Orton, Steve Henson* 12354 12355 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12356 ([CVE-2004-0112]) 12357 12358 *Joe Orton, Steve Henson* 12359 12360 * Make it possible to have multiple active certificates with the same 12361 subject in the CA index file. This is done only if the keyword 12362 'unique_subject' is set to 'no' in the main CA section (default 12363 if 'CA_default') of the configuration file. The value is saved 12364 with the database itself in a separate index attribute file, 12365 named like the index file with '.attr' appended to the name. 12366 12367 *Richard Levitte* 12368 12369 * X509 verify fixes. Disable broken certificate workarounds when 12370 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12371 keyUsage extension present. Don't accept CRLs with unhandled critical 12372 extensions: since verify currently doesn't process CRL extensions this 12373 rejects a CRL with *any* critical extensions. Add new verify error codes 12374 for these cases. 12375 12376 *Steve Henson* 12377 12378 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12379 A clarification of RFC2560 will require the use of OCTET STRINGs and 12380 some implementations cannot handle the current raw format. Since OpenSSL 12381 copies and compares OCSP nonces as opaque blobs without any attempt at 12382 parsing them this should not create any compatibility issues. 12383 12384 *Steve Henson* 12385 12386 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12387 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12388 this HMAC (and other) operations are several times slower than OpenSSL 12389 < 0.9.7. 12390 12391 *Steve Henson* 12392 12393 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12394 12395 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12396 12397 * Use the correct content when signing type "other". 12398 12399 *Steve Henson* 12400 12401### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12402 12403 * Fix various bugs revealed by running the NISCC test suite: 12404 12405 Stop out of bounds reads in the ASN1 code when presented with 12406 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12407 12408 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12409 12410 If verify callback ignores invalid public key errors don't try to check 12411 certificate signature with the NULL public key. 12412 12413 *Steve Henson* 12414 12415 * New -ignore_err option in ocsp application to stop the server 12416 exiting on the first error in a request. 12417 12418 *Steve Henson* 12419 12420 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12421 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12422 specifications. 12423 12424 *Steve Henson* 12425 12426 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12427 extra data after the compression methods not only for TLS 1.0 12428 but also for SSL 3.0 (as required by the specification). 12429 12430 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12431 12432 * Change X509_certificate_type() to mark the key as exported/exportable 12433 when it's 512 *bits* long, not 512 bytes. 12434 12435 *Richard Levitte* 12436 12437 * Change AES_cbc_encrypt() so it outputs exact multiple of 12438 blocks during encryption. 12439 12440 *Richard Levitte* 12441 12442 * Various fixes to base64 BIO and non blocking I/O. On write 12443 flushes were not handled properly if the BIO retried. On read 12444 data was not being buffered properly and had various logic bugs. 12445 This also affects blocking I/O when the data being decoded is a 12446 certain size. 12447 12448 *Steve Henson* 12449 12450 * Various S/MIME bugfixes and compatibility changes: 12451 output correct application/pkcs7 MIME type if 12452 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12453 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12454 of files as .eml work). Correctly handle very long lines in MIME 12455 parser. 12456 12457 *Steve Henson* 12458 12459### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12460 12461 * Countermeasure against the Klima-Pokorny-Rosa extension of 12462 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12463 a protocol version number mismatch like a decryption error 12464 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12465 12466 *Bodo Moeller* 12467 12468 * Turn on RSA blinding by default in the default implementation 12469 to avoid a timing attack. Applications that don't want it can call 12470 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12471 They would be ill-advised to do so in most cases. 12472 12473 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12474 12475 * Change RSA blinding code so that it works when the PRNG is not 12476 seeded (in this case, the secret RSA exponent is abused as 12477 an unpredictable seed -- if it is not unpredictable, there 12478 is no point in blinding anyway). Make RSA blinding thread-safe 12479 by remembering the creator's thread ID in rsa->blinding and 12480 having all other threads use local one-time blinding factors 12481 (this requires more computation than sharing rsa->blinding, but 12482 avoids excessive locking; and if an RSA object is not shared 12483 between threads, blinding will still be very fast). 12484 12485 *Bodo Moeller* 12486 12487 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12488 ENGINE as defaults for all supported algorithms irrespective of 12489 the 'flags' parameter. 'flags' is now honoured, so applications 12490 should make sure they are passing it correctly. 12491 12492 *Geoff Thorpe* 12493 12494 * Target "mingw" now allows native Windows code to be generated in 12495 the Cygwin environment as well as with the MinGW compiler. 12496 12497 *Ulf Moeller* 12498 12499### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12500 12501 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12502 via timing by performing a MAC computation even if incorrect 12503 block cipher padding has been found. This is a countermeasure 12504 against active attacks where the attacker has to distinguish 12505 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12506 12507 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12508 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12509 Martin Vuagnoux (EPFL, Ilion)* 12510 12511 * Make the no-err option work as intended. The intention with no-err 12512 is not to have the whole error stack handling routines removed from 12513 libcrypto, it's only intended to remove all the function name and 12514 reason texts, thereby removing some of the footprint that may not 12515 be interesting if those errors aren't displayed anyway. 12516 12517 NOTE: it's still possible for any application or module to have its 12518 own set of error texts inserted. The routines are there, just not 12519 used by default when no-err is given. 12520 12521 *Richard Levitte* 12522 12523 * Add support for FreeBSD on IA64. 12524 12525 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12526 12527 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12528 Kerberos function mit_des_cbc_cksum(). Before this change, 12529 the value returned by DES_cbc_cksum() was like the one from 12530 mit_des_cbc_cksum(), except the bytes were swapped. 12531 12532 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12533 12534 * Allow an application to disable the automatic SSL chain building. 12535 Before this a rather primitive chain build was always performed in 12536 ssl3_output_cert_chain(): an application had no way to send the 12537 correct chain if the automatic operation produced an incorrect result. 12538 12539 Now the chain builder is disabled if either: 12540 12541 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12542 12543 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12544 12545 The reasoning behind this is that an application would not want the 12546 auto chain building to take place if extra chain certificates are 12547 present and it might also want a means of sending no additional 12548 certificates (for example the chain has two certificates and the 12549 root is omitted). 12550 12551 *Steve Henson* 12552 12553 * Add the possibility to build without the ENGINE framework. 12554 12555 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12556 12557 * Under Win32 gmtime() can return NULL: check return value in 12558 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12559 12560 *Steve Henson* 12561 12562 * DSA routines: under certain error conditions uninitialized BN objects 12563 could be freed. Solution: make sure initialization is performed early 12564 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12565 Nils Larsch <nla@trustcenter.de> via PR#459) 12566 12567 *Lutz Jaenicke* 12568 12569 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12570 checked on reconnect on the client side, therefore session resumption 12571 could still fail with a "ssl session id is different" error. This 12572 behaviour is masked when SSL_OP_ALL is used due to 12573 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12574 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12575 followup to PR #377. 12576 12577 *Lutz Jaenicke* 12578 12579 * IA-32 assembler support enhancements: unified ELF targets, support 12580 for SCO/Caldera platforms, fix for Cygwin shared build. 12581 12582 *Andy Polyakov* 12583 12584 * Add support for FreeBSD on sparc64. As a consequence, support for 12585 FreeBSD on non-x86 processors is separate from x86 processors on 12586 the config script, much like the NetBSD support. 12587 12588 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12589 12590### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12591 12592[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12593OpenSSL 0.9.7.] 12594 12595 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12596 code (06) was taken as the first octet of the session ID and the last 12597 octet was ignored consequently. As a result SSLv2 client side session 12598 caching could not have worked due to the session ID mismatch between 12599 client and server. 12600 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12601 PR #377. 12602 12603 *Lutz Jaenicke* 12604 12605 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12606 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12607 removed entirely. 12608 12609 *Richard Levitte* 12610 12611 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12612 seems that in spite of existing for more than a year, many application 12613 author have done nothing to provide the necessary callbacks, which 12614 means that this particular engine will not work properly anywhere. 12615 This is a very unfortunate situation which forces us, in the name 12616 of usability, to give the hw_ncipher.c a static lock, which is part 12617 of libcrypto. 12618 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12619 appear in 0.9.8 or later. We EXPECT application authors to have 12620 dealt properly with this when 0.9.8 is released (unless we actually 12621 make such changes in the libcrypto locking code that changes will 12622 have to be made anyway). 12623 12624 *Richard Levitte* 12625 12626 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12627 octets have been read, EOF or an error occurs. Without this change 12628 some truncated ASN1 structures will not produce an error. 12629 12630 *Steve Henson* 12631 12632 * Disable Heimdal support, since it hasn't been fully implemented. 12633 Still give the possibility to force the use of Heimdal, but with 12634 warnings and a request that patches get sent to openssl-dev. 12635 12636 *Richard Levitte* 12637 12638 * Add the VC-CE target, introduce the WINCE sysname, and add 12639 INSTALL.WCE and appropriate conditionals to make it build. 12640 12641 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12642 12643 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12644 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12645 edit numbers of the version. 12646 12647 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12648 12649 * Introduce safe string copy and catenation functions 12650 (BUF_strlcpy() and BUF_strlcat()). 12651 12652 *Ben Laurie (CHATS) and Richard Levitte* 12653 12654 * Avoid using fixed-size buffers for one-line DNs. 12655 12656 *Ben Laurie (CHATS)* 12657 12658 * Add BUF_MEM_grow_clean() to avoid information leakage when 12659 resizing buffers containing secrets, and use where appropriate. 12660 12661 *Ben Laurie (CHATS)* 12662 12663 * Avoid using fixed size buffers for configuration file location. 12664 12665 *Ben Laurie (CHATS)* 12666 12667 * Avoid filename truncation for various CA files. 12668 12669 *Ben Laurie (CHATS)* 12670 12671 * Use sizeof in preference to magic numbers. 12672 12673 *Ben Laurie (CHATS)* 12674 12675 * Avoid filename truncation in cert requests. 12676 12677 *Ben Laurie (CHATS)* 12678 12679 * Add assertions to check for (supposedly impossible) buffer 12680 overflows. 12681 12682 *Ben Laurie (CHATS)* 12683 12684 * Don't cache truncated DNS entries in the local cache (this could 12685 potentially lead to a spoofing attack). 12686 12687 *Ben Laurie (CHATS)* 12688 12689 * Fix various buffers to be large enough for hex/decimal 12690 representations in a platform independent manner. 12691 12692 *Ben Laurie (CHATS)* 12693 12694 * Add CRYPTO_realloc_clean() to avoid information leakage when 12695 resizing buffers containing secrets, and use where appropriate. 12696 12697 *Ben Laurie (CHATS)* 12698 12699 * Add BIO_indent() to avoid much slightly worrying code to do 12700 indents. 12701 12702 *Ben Laurie (CHATS)* 12703 12704 * Convert sprintf()/BIO_puts() to BIO_printf(). 12705 12706 *Ben Laurie (CHATS)* 12707 12708 * buffer_gets() could terminate with the buffer only half 12709 full. Fixed. 12710 12711 *Ben Laurie (CHATS)* 12712 12713 * Add assertions to prevent user-supplied crypto functions from 12714 overflowing internal buffers by having large block sizes, etc. 12715 12716 *Ben Laurie (CHATS)* 12717 12718 * New OPENSSL_assert() macro (similar to assert(), but enabled 12719 unconditionally). 12720 12721 *Ben Laurie (CHATS)* 12722 12723 * Eliminate unused copy of key in RC4. 12724 12725 *Ben Laurie (CHATS)* 12726 12727 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12728 12729 *Ben Laurie (CHATS)* 12730 12731 * Fix off-by-one error in EGD path. 12732 12733 *Ben Laurie (CHATS)* 12734 12735 * If RANDFILE path is too long, ignore instead of truncating. 12736 12737 *Ben Laurie (CHATS)* 12738 12739 * Eliminate unused and incorrectly sized X.509 structure 12740 CBCParameter. 12741 12742 *Ben Laurie (CHATS)* 12743 12744 * Eliminate unused and dangerous function knumber(). 12745 12746 *Ben Laurie (CHATS)* 12747 12748 * Eliminate unused and dangerous structure, KSSL_ERR. 12749 12750 *Ben Laurie (CHATS)* 12751 12752 * Protect against overlong session ID context length in an encoded 12753 session object. Since these are local, this does not appear to be 12754 exploitable. 12755 12756 *Ben Laurie (CHATS)* 12757 12758 * Change from security patch (see 0.9.6e below) that did not affect 12759 the 0.9.6 release series: 12760 12761 Remote buffer overflow in SSL3 protocol - an attacker could 12762 supply an oversized master key in Kerberos-enabled versions. 12763 ([CVE-2002-0657]) 12764 12765 *Ben Laurie (CHATS)* 12766 12767 * Change the SSL kerb5 codes to match RFC 2712. 12768 12769 *Richard Levitte* 12770 12771 * Make -nameopt work fully for req and add -reqopt switch. 12772 12773 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12774 12775 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12776 12777 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12778 12779 * Make sure tests can be performed even if the corresponding algorithms 12780 have been removed entirely. This was also the last step to make 12781 OpenSSL compilable with DJGPP under all reasonable conditions. 12782 12783 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12784 12785 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12786 to allow version independent disabling of normally unselected ciphers, 12787 which may be activated as a side-effect of selecting a single cipher. 12788 12789 (E.g., cipher list string "RSA" enables ciphersuites that are left 12790 out of "ALL" because they do not provide symmetric encryption. 12791 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12792 12793 *Lutz Jaenicke, Bodo Moeller* 12794 12795 * Add appropriate support for separate platform-dependent build 12796 directories. The recommended way to make a platform-dependent 12797 build directory is the following (tested on Linux), maybe with 12798 some local tweaks: 12799 12800 # Place yourself outside of the OpenSSL source tree. In 12801 # this example, the environment variable OPENSSL_SOURCE 12802 # is assumed to contain the absolute OpenSSL source directory. 12803 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12804 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12805 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12806 mkdir -p `dirname $F` 12807 ln -s $OPENSSL_SOURCE/$F $F 12808 done 12809 12810 To be absolutely sure not to disturb the source tree, a "make clean" 12811 is a good thing. If it isn't successful, don't worry about it, 12812 it probably means the source directory is very clean. 12813 12814 *Richard Levitte* 12815 12816 * Make sure any ENGINE control commands make local copies of string 12817 pointers passed to them whenever necessary. Otherwise it is possible 12818 the caller may have overwritten (or deallocated) the original string 12819 data when a later ENGINE operation tries to use the stored values. 12820 12821 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12822 12823 * Improve diagnostics in file reading and command-line digests. 12824 12825 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12826 12827 * Add AES modes CFB and OFB to the object database. Correct an 12828 error in AES-CFB decryption. 12829 12830 *Richard Levitte* 12831 12832 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12833 allows existing EVP_CIPHER_CTX structures to be reused after 12834 calling `EVP_*Final()`. This behaviour is used by encryption 12835 BIOs and some applications. This has the side effect that 12836 applications must explicitly clean up cipher contexts with 12837 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12838 12839 *Steve Henson* 12840 12841 * Check the values of dna and dnb in bn_mul_recursive before calling 12842 bn_mul_comba (a non zero value means the a or b arrays do not contain 12843 n2 elements) and fallback to bn_mul_normal if either is not zero. 12844 12845 *Steve Henson* 12846 12847 * Fix escaping of non-ASCII characters when using the -subj option 12848 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12849 12850 *Lutz Jaenicke* 12851 12852 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12853 form for "surname", serialNumber has no short form. 12854 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12855 therefore remove "mail" short name for "internet 7". 12856 The OID for unique identifiers in X509 certificates is 12857 x500UniqueIdentifier, not uniqueIdentifier. 12858 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12859 12860 *Lutz Jaenicke* 12861 12862 * Add an "init" command to the ENGINE config module and auto initialize 12863 ENGINEs. Without any "init" command the ENGINE will be initialized 12864 after all ctrl commands have been executed on it. If init=1 the 12865 ENGINE is initialized at that point (ctrls before that point are run 12866 on the uninitialized ENGINE and after on the initialized one). If 12867 init=0 then the ENGINE will not be initialized at all. 12868 12869 *Steve Henson* 12870 12871 * Fix the 'app_verify_callback' interface so that the user-defined 12872 argument is actually passed to the callback: In the 12873 SSL_CTX_set_cert_verify_callback() prototype, the callback 12874 declaration has been changed from 12875 int (*cb)() 12876 into 12877 int (*cb)(X509_STORE_CTX *,void *); 12878 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12879 i=s->ctx->app_verify_callback(&ctx) 12880 has been changed into 12881 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12882 12883 To update applications using SSL_CTX_set_cert_verify_callback(), 12884 a dummy argument can be added to their callback functions. 12885 12886 *D. K. Smetters <smetters@parc.xerox.com>* 12887 12888 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12889 12890 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12891 12892 * Add and OPENSSL_LOAD_CONF define which will cause 12893 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12894 This allows older applications to transparently support certain 12895 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12896 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12897 load the config file and OPENSSL_add_all_algorithms_conf() which will 12898 always load it have also been added. 12899 12900 *Steve Henson* 12901 12902 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12903 Adjust NIDs and EVP layer. 12904 12905 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12906 12907 * Config modules support in openssl utility. 12908 12909 Most commands now load modules from the config file, 12910 though in a few (such as version) this isn't done 12911 because it couldn't be used for anything. 12912 12913 In the case of ca and req the config file used is 12914 the same as the utility itself: that is the -config 12915 command line option can be used to specify an 12916 alternative file. 12917 12918 *Steve Henson* 12919 12920 * Move default behaviour from OPENSSL_config(). If appname is NULL 12921 use "openssl_conf" if filename is NULL use default openssl config file. 12922 12923 *Steve Henson* 12924 12925 * Add an argument to OPENSSL_config() to allow the use of an alternative 12926 config section name. Add a new flag to tolerate a missing config file 12927 and move code to CONF_modules_load_file(). 12928 12929 *Steve Henson* 12930 12931 * Support for crypto accelerator cards from Accelerated Encryption 12932 Processing, www.aep.ie. (Use engine 'aep') 12933 The support was copied from 0.9.6c [engine] and adapted/corrected 12934 to work with the new engine framework. 12935 12936 *AEP Inc. and Richard Levitte* 12937 12938 * Support for SureWare crypto accelerator cards from Baltimore 12939 Technologies. (Use engine 'sureware') 12940 The support was copied from 0.9.6c [engine] and adapted 12941 to work with the new engine framework. 12942 12943 *Richard Levitte* 12944 12945 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12946 make the newer ENGINE framework commands for the CHIL engine work. 12947 12948 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12949 12950 * Make it possible to produce shared libraries on ReliantUNIX. 12951 12952 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12953 12954 * Add the configuration target debug-linux-ppro. 12955 Make 'openssl rsa' use the general key loading routines 12956 implemented in `apps.c`, and make those routines able to 12957 handle the key format FORMAT_NETSCAPE and the variant 12958 FORMAT_IISSGC. 12959 12960 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12961 12962 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12963 12964 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12965 12966 * Add -keyform to rsautl, and document -engine. 12967 12968 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 12969 12970 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 12971 BIO_R_NO_SUCH_FILE error code rather than the generic 12972 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 12973 12974 *Ben Laurie* 12975 12976 * Add new functions 12977 ERR_peek_last_error 12978 ERR_peek_last_error_line 12979 ERR_peek_last_error_line_data. 12980 These are similar to 12981 ERR_peek_error 12982 ERR_peek_error_line 12983 ERR_peek_error_line_data, 12984 but report on the latest error recorded rather than the first one 12985 still in the error queue. 12986 12987 *Ben Laurie, Bodo Moeller* 12988 12989 * default_algorithms option in ENGINE config module. This allows things 12990 like: 12991 default_algorithms = ALL 12992 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 12993 12994 *Steve Henson* 12995 12996 * Preliminary ENGINE config module. 12997 12998 *Steve Henson* 12999 13000 * New experimental application configuration code. 13001 13002 *Steve Henson* 13003 13004 * Change the AES code to follow the same name structure as all other 13005 symmetric ciphers, and behave the same way. Move everything to 13006 the directory crypto/aes, thereby obsoleting crypto/rijndael. 13007 13008 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 13009 13010 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 13011 13012 *Ben Laurie and Theo de Raadt* 13013 13014 * Add option to output public keys in req command. 13015 13016 *Massimiliano Pala madwolf@openca.org* 13017 13018 * Use wNAFs in EC_POINTs_mul() for improved efficiency 13019 (up to about 10% better than before for P-192 and P-224). 13020 13021 *Bodo Moeller* 13022 13023 * New functions/macros 13024 13025 SSL_CTX_set_msg_callback(ctx, cb) 13026 SSL_CTX_set_msg_callback_arg(ctx, arg) 13027 SSL_set_msg_callback(ssl, cb) 13028 SSL_set_msg_callback_arg(ssl, arg) 13029 13030 to request calling a callback function 13031 13032 void cb(int write_p, int version, int content_type, 13033 const void *buf, size_t len, SSL *ssl, void *arg) 13034 13035 whenever a protocol message has been completely received 13036 (write_p == 0) or sent (write_p == 1). Here 'version' is the 13037 protocol version according to which the SSL library interprets 13038 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 13039 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 13040 the content type as defined in the SSL 3.0/TLS 1.0 protocol 13041 specification (change_cipher_spec(20), alert(21), handshake(22)). 13042 'buf' and 'len' point to the actual message, 'ssl' to the 13043 SSL object, and 'arg' is the application-defined value set by 13044 SSL[_CTX]_set_msg_callback_arg(). 13045 13046 'openssl s_client' and 'openssl s_server' have new '-msg' options 13047 to enable a callback that displays all protocol messages. 13048 13049 *Bodo Moeller* 13050 13051 * Change the shared library support so shared libraries are built as 13052 soon as the corresponding static library is finished, and thereby get 13053 openssl and the test programs linked against the shared library. 13054 This still only happens when the keyword "shard" has been given to 13055 the configuration scripts. 13056 13057 NOTE: shared library support is still an experimental thing, and 13058 backward binary compatibility is still not guaranteed. 13059 13060 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 13061 13062 * Add support for Subject Information Access extension. 13063 13064 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 13065 13066 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 13067 additional bytes when new memory had to be allocated, not just 13068 when reusing an existing buffer. 13069 13070 *Bodo Moeller* 13071 13072 * New command line and configuration option 'utf8' for the req command. 13073 This allows field values to be specified as UTF8 strings. 13074 13075 *Steve Henson* 13076 13077 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 13078 runs for the former and machine-readable output for the latter. 13079 13080 *Ben Laurie* 13081 13082 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 13083 of the e-mail address in the DN (i.e., it will go into a certificate 13084 extension only). The new configuration file option 'email_in_dn = no' 13085 has the same effect. 13086 13087 *Massimiliano Pala madwolf@openca.org* 13088 13089 * Change all functions with names starting with `des_` to be starting 13090 with `DES_` instead. Add wrappers that are compatible with libdes, 13091 but are named `_ossl_old_des_*`. Finally, add macros that map the 13092 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 13093 compatibility is desired. If OpenSSL 0.9.6c compatibility is 13094 desired, the `des_*` symbols will be mapped to `DES_*`, with one 13095 exception. 13096 13097 Since we provide two compatibility mappings, the user needs to 13098 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 13099 compatibility is desired. The default (i.e., when that macro 13100 isn't defined) is OpenSSL 0.9.6c compatibility. 13101 13102 There are also macros that enable and disable the support of old 13103 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 13104 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 13105 are defined, the default will apply: to support the old des routines. 13106 13107 In either case, one must include openssl/des.h to get the correct 13108 definitions. Do not try to just include openssl/des_old.h, that 13109 won't work. 13110 13111 NOTE: This is a major break of an old API into a new one. Software 13112 authors are encouraged to switch to the `DES_` style functions. Some 13113 time in the future, des_old.h and the libdes compatibility functions 13114 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 13115 default), and then completely removed. 13116 13117 *Richard Levitte* 13118 13119 * Test for certificates which contain unsupported critical extensions. 13120 If such a certificate is found during a verify operation it is 13121 rejected by default: this behaviour can be overridden by either 13122 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 13123 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 13124 X509_supported_extension() has also been added which returns 1 if a 13125 particular extension is supported. 13126 13127 *Steve Henson* 13128 13129 * Modify the behaviour of EVP cipher functions in similar way to digests 13130 to retain compatibility with existing code. 13131 13132 *Steve Henson* 13133 13134 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 13135 compatibility with existing code. In particular the 'ctx' parameter does 13136 not have to be to be initialized before the call to EVP_DigestInit() and 13137 it is tidied up after a call to EVP_DigestFinal(). New function 13138 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 13139 EVP_MD_CTX_copy() changed to not require the destination to be 13140 initialized valid and new function EVP_MD_CTX_copy_ex() added which 13141 requires the destination to be valid. 13142 13143 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 13144 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 13145 13146 *Steve Henson* 13147 13148 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 13149 so that complete 'Handshake' protocol structures are kept in memory 13150 instead of overwriting 'msg_type' and 'length' with 'body' data. 13151 13152 *Bodo Moeller* 13153 13154 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 13155 13156 *Massimo Santin via Richard Levitte* 13157 13158 * Major restructuring to the underlying ENGINE code. This includes 13159 reduction of linker bloat, separation of pure "ENGINE" manipulation 13160 (initialisation, etc) from functionality dealing with implementations 13161 of specific crypto interfaces. This change also introduces integrated 13162 support for symmetric ciphers and digest implementations - so ENGINEs 13163 can now accelerate these by providing EVP_CIPHER and EVP_MD 13164 implementations of their own. This is detailed in 13165 [crypto/engine/README.md](crypto/engine/README.md) 13166 as it couldn't be adequately described here. However, there are a few 13167 API changes worth noting - some RSA, DSA, DH, and RAND functions that 13168 were changed in the original introduction of ENGINE code have now 13169 reverted back - the hooking from this code to ENGINE is now a good 13170 deal more passive and at run-time, operations deal directly with 13171 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 13172 dereferencing through an ENGINE pointer any more. Also, the ENGINE 13173 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 13174 they were not being used by the framework as there is no concept of a 13175 BIGNUM_METHOD and they could not be generalised to the new 13176 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 13177 ENGINE_cpy() has been removed as it cannot be consistently defined in 13178 the new code. 13179 13180 *Geoff Thorpe* 13181 13182 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 13183 13184 *Steve Henson* 13185 13186 * Change mkdef.pl to sort symbols that get the same entry number, 13187 and make sure the automatically generated functions `ERR_load_*` 13188 become part of libeay.num as well. 13189 13190 *Richard Levitte* 13191 13192 * New function SSL_renegotiate_pending(). This returns true once 13193 renegotiation has been requested (either SSL_renegotiate() call 13194 or HelloRequest/ClientHello received from the peer) and becomes 13195 false once a handshake has been completed. 13196 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 13197 sends a HelloRequest, but does not ensure that a handshake takes 13198 place. SSL_renegotiate_pending() is useful for checking if the 13199 client has followed the request.) 13200 13201 *Bodo Moeller* 13202 13203 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 13204 By default, clients may request session resumption even during 13205 renegotiation (if session ID contexts permit); with this option, 13206 session resumption is possible only in the first handshake. 13207 13208 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 13209 more bits available for options that should not be part of 13210 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 13211 13212 *Bodo Moeller* 13213 13214 * Add some demos for certificate and certificate request creation. 13215 13216 *Steve Henson* 13217 13218 * Make maximum certificate chain size accepted from the peer application 13219 settable (`SSL*_get/set_max_cert_list()`), as proposed by 13220 "Douglas E. Engert" <deengert@anl.gov>. 13221 13222 *Lutz Jaenicke* 13223 13224 * Add support for shared libraries for Unixware-7 13225 (Boyd Lynn Gerber <gerberb@zenez.com>). 13226 13227 *Lutz Jaenicke* 13228 13229 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 13230 be done prior to destruction. Use this to unload error strings from 13231 ENGINEs that load their own error strings. NB: This adds two new API 13232 functions to "get" and "set" this destroy handler in an ENGINE. 13233 13234 *Geoff Thorpe* 13235 13236 * Alter all existing ENGINE implementations (except "openssl" and 13237 "openbsd") to dynamically instantiate their own error strings. This 13238 makes them more flexible to be built both as statically-linked ENGINEs 13239 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 13240 Also, add stub code to each that makes building them as self-contained 13241 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 13242 13243 *Geoff Thorpe* 13244 13245 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 13246 implementations into applications that are completely implemented in 13247 self-contained shared-libraries. The "dynamic" ENGINE exposes control 13248 commands that can be used to configure what shared-library to load and 13249 to control aspects of the way it is handled. Also, made an update to 13250 the [README-Engine.md](README-Engine.md) file 13251 that brings its information up-to-date and 13252 provides some information and instructions on the "dynamic" ENGINE 13253 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 13254 13255 *Geoff Thorpe* 13256 13257 * Make it possible to unload ranges of ERR strings with a new 13258 "ERR_unload_strings" function. 13259 13260 *Geoff Thorpe* 13261 13262 * Add a copy() function to EVP_MD. 13263 13264 *Ben Laurie* 13265 13266 * Make EVP_MD routines take a context pointer instead of just the 13267 md_data void pointer. 13268 13269 *Ben Laurie* 13270 13271 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 13272 that the digest can only process a single chunk of data 13273 (typically because it is provided by a piece of 13274 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 13275 is only going to provide a single chunk of data, and hence the 13276 framework needn't accumulate the data for oneshot drivers. 13277 13278 *Ben Laurie* 13279 13280 * As with "ERR", make it possible to replace the underlying "ex_data" 13281 functions. This change also alters the storage and management of global 13282 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 13283 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 13284 index counters. The API functions that use this state have been changed 13285 to take a "class_index" rather than pointers to the class's local STACK 13286 and counter, and there is now an API function to dynamically create new 13287 classes. This centralisation allows us to (a) plug a lot of the 13288 thread-safety problems that existed, and (b) makes it possible to clean 13289 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 13290 such data would previously have always leaked in application code and 13291 workarounds were in place to make the memory debugging turn a blind eye 13292 to it. Application code that doesn't use this new function will still 13293 leak as before, but their memory debugging output will announce it now 13294 rather than letting it slide. 13295 13296 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 13297 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 13298 has a return value to indicate success or failure. 13299 13300 *Geoff Thorpe* 13301 13302 * Make it possible to replace the underlying "ERR" functions such that the 13303 global state (2 LHASH tables and 2 locks) is only used by the "default" 13304 implementation. This change also adds two functions to "get" and "set" 13305 the implementation prior to it being automatically set the first time 13306 any other ERR function takes place. Ie. an application can call "get", 13307 pass the return value to a module it has just loaded, and that module 13308 can call its own "set" function using that value. This means the 13309 module's "ERR" operations will use (and modify) the error state in the 13310 application and not in its own statically linked copy of OpenSSL code. 13311 13312 *Geoff Thorpe* 13313 13314 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 13315 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 13316 the operation, and provides a more encapsulated way for external code 13317 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 13318 to use these functions rather than manually incrementing the counts. 13319 13320 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 13321 13322 *Geoff Thorpe* 13323 13324 * Add EVP test program. 13325 13326 *Ben Laurie* 13327 13328 * Add symmetric cipher support to ENGINE. Expect the API to change! 13329 13330 *Ben Laurie* 13331 13332 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 13333 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 13334 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 13335 These allow a CRL to be built without having to access X509_CRL fields 13336 directly. Modify 'ca' application to use new functions. 13337 13338 *Steve Henson* 13339 13340 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 13341 bug workarounds. Rollback attack detection is a security feature. 13342 The problem will only arise on OpenSSL servers when TLSv1 is not 13343 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13344 Software authors not wanting to support TLSv1 will have special reasons 13345 for their choice and can explicitly enable this option. 13346 13347 *Bodo Moeller, Lutz Jaenicke* 13348 13349 * Rationalise EVP so it can be extended: don't include a union of 13350 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13351 (similar to those existing for EVP_CIPHER_CTX). 13352 Usage example: 13353 13354 EVP_MD_CTX md; 13355 13356 EVP_MD_CTX_init(&md); /* new function call */ 13357 EVP_DigestInit(&md, EVP_sha1()); 13358 EVP_DigestUpdate(&md, in, len); 13359 EVP_DigestFinal(&md, out, NULL); 13360 EVP_MD_CTX_cleanup(&md); /* new function call */ 13361 13362 *Ben Laurie* 13363 13364 * Make DES key schedule conform to the usual scheme, as well as 13365 correcting its structure. This means that calls to DES functions 13366 now have to pass a pointer to a des_key_schedule instead of a 13367 plain des_key_schedule (which was actually always a pointer 13368 anyway): E.g., 13369 13370 des_key_schedule ks; 13371 13372 des_set_key_checked(..., &ks); 13373 des_ncbc_encrypt(..., &ks, ...); 13374 13375 (Note that a later change renames 'des_...' into 'DES_...'.) 13376 13377 *Ben Laurie* 13378 13379 * Initial reduction of linker bloat: the use of some functions, such as 13380 PEM causes large amounts of unused functions to be linked in due to 13381 poor organisation. For example pem_all.c contains every PEM function 13382 which has a knock on effect of linking in large amounts of (unused) 13383 ASN1 code. Grouping together similar functions and splitting unrelated 13384 functions prevents this. 13385 13386 *Steve Henson* 13387 13388 * Cleanup of EVP macros. 13389 13390 *Ben Laurie* 13391 13392 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13393 correct `_ecb suffix`. 13394 13395 *Ben Laurie* 13396 13397 * Add initial OCSP responder support to ocsp application. The 13398 revocation information is handled using the text based index 13399 use by the ca application. The responder can either handle 13400 requests generated internally, supplied in files (for example 13401 via a CGI script) or using an internal minimal server. 13402 13403 *Steve Henson* 13404 13405 * Add configuration choices to get zlib compression for TLS. 13406 13407 *Richard Levitte* 13408 13409 * Changes to Kerberos SSL for RFC 2712 compliance: 13410 1. Implemented real KerberosWrapper, instead of just using 13411 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13412 2. Implemented optional authenticator field of KerberosWrapper. 13413 13414 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13415 and authenticator structs; see crypto/krb5/. 13416 13417 Generalized Kerberos calls to support multiple Kerberos libraries. 13418 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13419 via Richard Levitte* 13420 13421 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13422 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13423 values for each of the key sizes rather than having just 13424 parameters (and 'speed' generating keys each time). 13425 13426 *Geoff Thorpe* 13427 13428 * Speed up EVP routines. 13429 Before: 13430crypt 13431pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13432s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13433s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13434s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13435crypt 13436s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13437s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13438s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13439 After: 13440crypt 13441s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13442crypt 13443s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13444 13445 *Ben Laurie* 13446 13447 * Added the OS2-EMX target. 13448 13449 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13450 13451 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13452 New functions to support `NCONF` routines in extension code. 13453 New function `CONF_set_nconf()` 13454 to allow functions which take an `NCONF` to also handle the old `LHASH` 13455 structure: this means that the old `CONF` compatible routines can be 13456 retained (in particular w.rt. extensions) without having to duplicate the 13457 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13458 13459 *Steve Henson* 13460 13461 * Enhance the general user interface with mechanisms for inner control 13462 and with possibilities to have yes/no kind of prompts. 13463 13464 *Richard Levitte* 13465 13466 * Change all calls to low-level digest routines in the library and 13467 applications to use EVP. Add missing calls to HMAC_cleanup() and 13468 don't assume HMAC_CTX can be copied using memcpy(). 13469 13470 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13471 13472 * Add the possibility to control engines through control names but with 13473 arbitrary arguments instead of just a string. 13474 Change the key loaders to take a UI_METHOD instead of a callback 13475 function pointer. NOTE: this breaks binary compatibility with earlier 13476 versions of OpenSSL [engine]. 13477 Adapt the nCipher code for these new conditions and add a card insertion 13478 callback. 13479 13480 *Richard Levitte* 13481 13482 * Enhance the general user interface with mechanisms to better support 13483 dialog box interfaces, application-defined prompts, the possibility 13484 to use defaults (for example default passwords from somewhere else) 13485 and interrupts/cancellations. 13486 13487 *Richard Levitte* 13488 13489 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13490 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13491 13492 *Steve Henson* 13493 13494 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13495 tidy up some unnecessarily weird code in 'sk_new()'). 13496 13497 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13498 13499 * Change the key loading routines for ENGINEs to use the same kind 13500 callback (pem_password_cb) as all other routines that need this 13501 kind of callback. 13502 13503 *Richard Levitte* 13504 13505 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13506 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13507 than this minimum value is recommended. 13508 13509 *Lutz Jaenicke* 13510 13511 * New random seeder for OpenVMS, using the system process statistics 13512 that are easily reachable. 13513 13514 *Richard Levitte* 13515 13516 * Windows apparently can't transparently handle global 13517 variables defined in DLLs. Initialisations such as: 13518 13519 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13520 13521 won't compile. This is used by the any applications that need to 13522 declare their own ASN1 modules. This was fixed by adding the option 13523 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13524 needed for static libraries under Win32. 13525 13526 *Steve Henson* 13527 13528 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13529 setting of purpose and trust fields. New X509_STORE trust and 13530 purpose functions and tidy up setting in other SSL functions. 13531 13532 *Steve Henson* 13533 13534 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13535 structure. These are inherited by X509_STORE_CTX when it is 13536 initialised. This allows various defaults to be set in the 13537 X509_STORE structure (such as flags for CRL checking and custom 13538 purpose or trust settings) for functions which only use X509_STORE_CTX 13539 internally such as S/MIME. 13540 13541 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13542 trust settings if they are not set in X509_STORE. This allows X509_STORE 13543 purposes and trust (in S/MIME for example) to override any set by default. 13544 13545 Add command line options for CRL checking to smime, s_client and s_server 13546 applications. 13547 13548 *Steve Henson* 13549 13550 * Initial CRL based revocation checking. If the CRL checking flag(s) 13551 are set then the CRL is looked up in the X509_STORE structure and 13552 its validity and signature checked, then if the certificate is found 13553 in the CRL the verify fails with a revoked error. 13554 13555 Various new CRL related callbacks added to X509_STORE_CTX structure. 13556 13557 Command line options added to 'verify' application to support this. 13558 13559 This needs some additional work, such as being able to handle multiple 13560 CRLs with different times, extension based lookup (rather than just 13561 by subject name) and ultimately more complete V2 CRL extension 13562 handling. 13563 13564 *Steve Henson* 13565 13566 * Add a general user interface API (crypto/ui/). This is designed 13567 to replace things like des_read_password and friends (backward 13568 compatibility functions using this new API are provided). 13569 The purpose is to remove prompting functions from the DES code 13570 section as well as provide for prompting through dialog boxes in 13571 a window system and the like. 13572 13573 *Richard Levitte* 13574 13575 * Add "ex_data" support to ENGINE so implementations can add state at a 13576 per-structure level rather than having to store it globally. 13577 13578 *Geoff* 13579 13580 * Make it possible for ENGINE structures to be copied when retrieved by 13581 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13582 This causes the "original" ENGINE structure to act like a template, 13583 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13584 operational state can be localised to each ENGINE structure, despite the 13585 fact they all share the same "methods". New ENGINE structures returned in 13586 this case have no functional references and the return value is the single 13587 structural reference. This matches the single structural reference returned 13588 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13589 ENGINE structure. 13590 13591 *Geoff* 13592 13593 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13594 needs to match any other type at all we need to manually clear the 13595 tag cache. 13596 13597 *Steve Henson* 13598 13599 * Changes to the "openssl engine" utility to include; 13600 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13601 about an ENGINE's available control commands. 13602 - executing control commands from command line arguments using the 13603 '-pre' and '-post' switches. '-post' is only used if '-t' is 13604 specified and the ENGINE is successfully initialised. The syntax for 13605 the individual commands are colon-separated, for example; 13606 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13607 13608 *Geoff* 13609 13610 * New dynamic control command support for ENGINEs. ENGINEs can now 13611 declare their own commands (numbers), names (strings), descriptions, 13612 and input types for run-time discovery by calling applications. A 13613 subset of these commands are implicitly classed as "executable" 13614 depending on their input type, and only these can be invoked through 13615 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13616 can be based on user input, config files, etc). The distinction is 13617 that "executable" commands cannot return anything other than a boolean 13618 result and can only support numeric or string input, whereas some 13619 discoverable commands may only be for direct use through 13620 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13621 pointers, or other custom uses. The "executable" commands are to 13622 support parameterisations of ENGINE behaviour that can be 13623 unambiguously defined by ENGINEs and used consistently across any 13624 OpenSSL-based application. Commands have been added to all the 13625 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13626 control over shared-library paths without source code alterations. 13627 13628 *Geoff* 13629 13630 * Changed all ENGINE implementations to dynamically allocate their 13631 ENGINEs rather than declaring them statically. Apart from this being 13632 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13633 this also allows the implementations to compile without using the 13634 internal engine_int.h header. 13635 13636 *Geoff* 13637 13638 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13639 'const' value. Any code that should be able to modify a RAND_METHOD 13640 should already have non-const pointers to it (ie. they should only 13641 modify their own ones). 13642 13643 *Geoff* 13644 13645 * Made a variety of little tweaks to the ENGINE code. 13646 - "atalla" and "ubsec" string definitions were moved from header files 13647 to C code. "nuron" string definitions were placed in variables 13648 rather than hard-coded - allowing parameterisation of these values 13649 later on via ctrl() commands. 13650 - Removed unused "#if 0"'d code. 13651 - Fixed engine list iteration code so it uses ENGINE_free() to release 13652 structural references. 13653 - Constified the RAND_METHOD element of ENGINE structures. 13654 - Constified various get/set functions as appropriate and added 13655 missing functions (including a catch-all ENGINE_cpy that duplicates 13656 all ENGINE values onto a new ENGINE except reference counts/state). 13657 - Removed NULL parameter checks in get/set functions. Setting a method 13658 or function to NULL is a way of cancelling out a previously set 13659 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13660 and doesn't justify the extra error symbols and code. 13661 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13662 flags from engine_int.h to engine.h. 13663 - Changed prototypes for ENGINE handler functions (init(), finish(), 13664 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13665 13666 *Geoff* 13667 13668 * Implement binary inversion algorithm for BN_mod_inverse in addition 13669 to the algorithm using long division. The binary algorithm can be 13670 used only if the modulus is odd. On 32-bit systems, it is faster 13671 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13672 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13673 up to 450 bits. In 64-bit environments, the binary algorithm 13674 appears to be advantageous for much longer moduli; here we use it 13675 for moduli up to 2048 bits. 13676 13677 *Bodo Moeller* 13678 13679 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13680 could not support the combine flag in choice fields. 13681 13682 *Steve Henson* 13683 13684 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13685 extensions from a certificate request to the certificate. 13686 13687 *Steve Henson* 13688 13689 * Allow multiple 'certopt' and 'nameopt' options to be separated 13690 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13691 file: this allows the display of the certificate about to be 13692 signed to be customised, to allow certain fields to be included 13693 or excluded and extension details. The old system didn't display 13694 multicharacter strings properly, omitted fields not in the policy 13695 and couldn't display additional details such as extensions. 13696 13697 *Steve Henson* 13698 13699 * Function EC_POINTs_mul for multiple scalar multiplication 13700 of an arbitrary number of elliptic curve points 13701 \sum scalars[i]*points[i], 13702 optionally including the generator defined for the EC_GROUP: 13703 scalar*generator + \sum scalars[i]*points[i]. 13704 13705 EC_POINT_mul is a simple wrapper function for the typical case 13706 that the point list has just one item (besides the optional 13707 generator). 13708 13709 *Bodo Moeller* 13710 13711 * First EC_METHODs for curves over GF(p): 13712 13713 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13714 operations and provides various method functions that can also 13715 operate with faster implementations of modular arithmetic. 13716 13717 EC_GFp_mont_method() reuses most functions that are part of 13718 EC_GFp_simple_method, but uses Montgomery arithmetic. 13719 13720 *Bodo Moeller; point addition and point doubling 13721 implementation directly derived from source code provided by 13722 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13723 13724 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13725 crypto/ec/ec_lib.c): 13726 13727 Curves are EC_GROUP objects (with an optional group generator) 13728 based on EC_METHODs that are built into the library. 13729 13730 Points are EC_POINT objects based on EC_GROUP objects. 13731 13732 Most of the framework would be able to handle curves over arbitrary 13733 finite fields, but as there are no obvious types for fields other 13734 than GF(p), some functions are limited to that for now. 13735 13736 *Bodo Moeller* 13737 13738 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13739 that the file contains a complete HTTP response. 13740 13741 *Richard Levitte* 13742 13743 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13744 change the def and num file printf format specifier from "%-40sXXX" 13745 to "%-39s XXX". The latter will always guarantee a space after the 13746 field while the former will cause them to run together if the field 13747 is 40 of more characters long. 13748 13749 *Steve Henson* 13750 13751 * Constify the cipher and digest 'method' functions and structures 13752 and modify related functions to take constant EVP_MD and EVP_CIPHER 13753 pointers. 13754 13755 *Steve Henson* 13756 13757 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13758 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13759 13760 *Bodo Moeller* 13761 13762 * Modify `EVP_Digest*()` routines so they now return values. Although the 13763 internal software routines can never fail additional hardware versions 13764 might. 13765 13766 *Steve Henson* 13767 13768 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13769 13770 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13771 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13772 13773 ASN1 error codes 13774 ERR_R_NESTED_ASN1_ERROR 13775 ... 13776 ERR_R_MISSING_ASN1_EOS 13777 were 4 .. 9, conflicting with 13778 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13779 ... 13780 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13781 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13782 13783 Add new error code 'ERR_R_INTERNAL_ERROR'. 13784 13785 *Bodo Moeller* 13786 13787 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13788 suffices. 13789 13790 *Bodo Moeller* 13791 13792 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13793 sets the subject name for a new request or supersedes the 13794 subject name in a given request. Formats that can be parsed are 13795 'CN=Some Name, OU=myOU, C=IT' 13796 and 13797 'CN=Some Name/OU=myOU/C=IT'. 13798 13799 Add options '-batch' and '-verbose' to 'openssl req'. 13800 13801 *Massimiliano Pala <madwolf@hackmasters.net>* 13802 13803 * Introduce the possibility to access global variables through 13804 functions on platform were that's the best way to handle exporting 13805 global variables in shared libraries. To enable this functionality, 13806 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13807 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13808 is normally done by Configure or something similar). 13809 13810 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13811 in the source file (foo.c) like this: 13812 13813 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13814 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13815 13816 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13817 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13818 13819 OPENSSL_DECLARE_GLOBAL(int,foo); 13820 #define foo OPENSSL_GLOBAL_REF(foo) 13821 OPENSSL_DECLARE_GLOBAL(double,bar); 13822 #define bar OPENSSL_GLOBAL_REF(bar) 13823 13824 The #defines are very important, and therefore so is including the 13825 header file everywhere where the defined globals are used. 13826 13827 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13828 of ASN.1 items, but that structure is a bit different. 13829 13830 The largest change is in util/mkdef.pl which has been enhanced with 13831 better and easier to understand logic to choose which symbols should 13832 go into the Windows .def files as well as a number of fixes and code 13833 cleanup (among others, algorithm keywords are now sorted 13834 lexicographically to avoid constant rewrites). 13835 13836 *Richard Levitte* 13837 13838 * In BN_div() keep a copy of the sign of 'num' before writing the 13839 result to 'rm' because if rm==num the value will be overwritten 13840 and produce the wrong result if 'num' is negative: this caused 13841 problems with BN_mod() and BN_nnmod(). 13842 13843 *Steve Henson* 13844 13845 * Function OCSP_request_verify(). This checks the signature on an 13846 OCSP request and verifies the signer certificate. The signer 13847 certificate is just checked for a generic purpose and OCSP request 13848 trust settings. 13849 13850 *Steve Henson* 13851 13852 * Add OCSP_check_validity() function to check the validity of OCSP 13853 responses. OCSP responses are prepared in real time and may only 13854 be a few seconds old. Simply checking that the current time lies 13855 between thisUpdate and nextUpdate max reject otherwise valid responses 13856 caused by either OCSP responder or client clock inaccuracy. Instead 13857 we allow thisUpdate and nextUpdate to fall within a certain period of 13858 the current time. The age of the response can also optionally be 13859 checked. Two new options -validity_period and -status_age added to 13860 ocsp utility. 13861 13862 *Steve Henson* 13863 13864 * If signature or public key algorithm is unrecognized print out its 13865 OID rather that just UNKNOWN. 13866 13867 *Steve Henson* 13868 13869 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13870 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13871 ID to be generated from the issuer certificate alone which can then be 13872 passed to OCSP_id_issuer_cmp(). 13873 13874 *Steve Henson* 13875 13876 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13877 ASN1 modules to export functions returning ASN1_ITEM pointers 13878 instead of the ASN1_ITEM structures themselves. This adds several 13879 new macros which allow the underlying ASN1 function/structure to 13880 be accessed transparently. As a result code should not use ASN1_ITEM 13881 references directly (such as &X509_it) but instead use the relevant 13882 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13883 use of the new ASN1 code on platforms where exporting structures 13884 is problematical (for example in shared libraries) but exporting 13885 functions returning pointers to structures is not. 13886 13887 *Steve Henson* 13888 13889 * Add support for overriding the generation of SSL/TLS session IDs. 13890 These callbacks can be registered either in an SSL_CTX or per SSL. 13891 The purpose of this is to allow applications to control, if they wish, 13892 the arbitrary values chosen for use as session IDs, particularly as it 13893 can be useful for session caching in multiple-server environments. A 13894 command-line switch for testing this (and any client code that wishes 13895 to use such a feature) has been added to "s_server". 13896 13897 *Geoff Thorpe, Lutz Jaenicke* 13898 13899 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13900 of the form `#if defined(...) || defined(...) || ...` and 13901 `#if !defined(...) && !defined(...) && ...`. This also avoids 13902 the growing number of special cases it was previously handling. 13903 13904 *Richard Levitte* 13905 13906 * Make all configuration macros available for application by making 13907 sure they are available in opensslconf.h, by giving them names starting 13908 with `OPENSSL_` to avoid conflicts with other packages and by making 13909 sure e_os2.h will cover all platform-specific cases together with 13910 opensslconf.h. 13911 Additionally, it is now possible to define configuration/platform- 13912 specific names (called "system identities"). In the C code, these 13913 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13914 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13915 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13916 what is available. 13917 13918 *Richard Levitte* 13919 13920 * New option -set_serial to 'req' and 'x509' this allows the serial 13921 number to use to be specified on the command line. Previously self 13922 signed certificates were hard coded with serial number 0 and the 13923 CA options of 'x509' had to use a serial number in a file which was 13924 auto incremented. 13925 13926 *Steve Henson* 13927 13928 * New options to 'ca' utility to support V2 CRL entry extensions. 13929 Currently CRL reason, invalidity date and hold instruction are 13930 supported. Add new CRL extensions to V3 code and some new objects. 13931 13932 *Steve Henson* 13933 13934 * New function EVP_CIPHER_CTX_set_padding() this is used to 13935 disable standard block padding (aka PKCS#5 padding) in the EVP 13936 API, which was previously mandatory. This means that the data is 13937 not padded in any way and so the total length much be a multiple 13938 of the block size, otherwise an error occurs. 13939 13940 *Steve Henson* 13941 13942 * Initial (incomplete) OCSP SSL support. 13943 13944 *Steve Henson* 13945 13946 * New function OCSP_parse_url(). This splits up a URL into its host, 13947 port and path components: primarily to parse OCSP URLs. New -url 13948 option to ocsp utility. 13949 13950 *Steve Henson* 13951 13952 * New nonce behavior. The return value of OCSP_check_nonce() now 13953 reflects the various checks performed. Applications can decide 13954 whether to tolerate certain situations such as an absent nonce 13955 in a response when one was present in a request: the ocsp application 13956 just prints out a warning. New function OCSP_add1_basic_nonce() 13957 this is to allow responders to include a nonce in a response even if 13958 the request is nonce-less. 13959 13960 *Steve Henson* 13961 13962 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13963 skipped when using openssl x509 multiple times on a single input file, 13964 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13965 13966 *Bodo Moeller* 13967 13968 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 13969 set string type: to handle setting ASN1_TIME structures. Fix ca 13970 utility to correctly initialize revocation date of CRLs. 13971 13972 *Steve Henson* 13973 13974 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 13975 the clients preferred ciphersuites and rather use its own preferences. 13976 Should help to work around M$ SGC (Server Gated Cryptography) bug in 13977 Internet Explorer by ensuring unchanged hash method during stepup. 13978 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 13979 13980 *Lutz Jaenicke* 13981 13982 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 13983 to aes and add a new 'exist' option to print out symbols that don't 13984 appear to exist. 13985 13986 *Steve Henson* 13987 13988 * Additional options to ocsp utility to allow flags to be set and 13989 additional certificates supplied. 13990 13991 *Steve Henson* 13992 13993 * Add the option -VAfile to 'openssl ocsp', so the user can give the 13994 OCSP client a number of certificate to only verify the response 13995 signature against. 13996 13997 *Richard Levitte* 13998 13999 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 14000 handle the new API. Currently only ECB, CBC modes supported. Add new 14001 AES OIDs. 14002 14003 Add TLS AES ciphersuites as described in RFC3268, "Advanced 14004 Encryption Standard (AES) Ciphersuites for Transport Layer 14005 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 14006 not enabled by default and were not part of the "ALL" ciphersuite 14007 alias because they were not yet official; they could be 14008 explicitly requested by specifying the "AESdraft" ciphersuite 14009 group alias. In the final release of OpenSSL 0.9.7, the group 14010 alias is called "AES" and is part of "ALL".) 14011 14012 *Ben Laurie, Steve Henson, Bodo Moeller* 14013 14014 * New function OCSP_copy_nonce() to copy nonce value (if present) from 14015 request to response. 14016 14017 *Steve Henson* 14018 14019 * Functions for OCSP responders. OCSP_request_onereq_count(), 14020 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 14021 extract information from a certificate request. OCSP_response_create() 14022 creates a response and optionally adds a basic response structure. 14023 OCSP_basic_add1_status() adds a complete single response to a basic 14024 response and returns the OCSP_SINGLERESP structure just added (to allow 14025 extensions to be included for example). OCSP_basic_add1_cert() adds a 14026 certificate to a basic response and OCSP_basic_sign() signs a basic 14027 response with various flags. New helper functions ASN1_TIME_check() 14028 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 14029 (converts ASN1_TIME to GeneralizedTime). 14030 14031 *Steve Henson* 14032 14033 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 14034 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 14035 structure from a certificate. X509_pubkey_digest() digests the public_key 14036 contents: this is used in various key identifiers. 14037 14038 *Steve Henson* 14039 14040 * Make sk_sort() tolerate a NULL argument. 14041 14042 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 14043 14044 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 14045 passed by the function are trusted implicitly. If any of them signed the 14046 response then it is assumed to be valid and is not verified. 14047 14048 *Steve Henson* 14049 14050 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 14051 to data. This was previously part of the PKCS7 ASN1 code. This 14052 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 14053 *Steve Henson, reported by Kenneth R. Robinette 14054 <support@securenetterm.com>* 14055 14056 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 14057 routines: without these tracing memory leaks is very painful. 14058 Fix leaks in PKCS12 and PKCS7 routines. 14059 14060 *Steve Henson* 14061 14062 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 14063 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 14064 effectively meant GeneralizedTime would never be used. Now it 14065 is initialised to -1 but X509_time_adj() now has to check the value 14066 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 14067 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 14068 *Steve Henson, reported by Kenneth R. Robinette 14069 <support@securenetterm.com>* 14070 14071 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 14072 result in a zero length in the ASN1_INTEGER structure which was 14073 not consistent with the structure when d2i_ASN1_INTEGER() was used 14074 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 14075 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 14076 where it did not print out a minus for negative ASN1_INTEGER. 14077 14078 *Steve Henson* 14079 14080 * Add summary printout to ocsp utility. The various functions which 14081 convert status values to strings have been renamed to: 14082 OCSP_response_status_str(), OCSP_cert_status_str() and 14083 OCSP_crl_reason_str() and are no longer static. New options 14084 to verify nonce values and to disable verification. OCSP response 14085 printout format cleaned up. 14086 14087 *Steve Henson* 14088 14089 * Add additional OCSP certificate checks. These are those specified 14090 in RFC2560. This consists of two separate checks: the CA of the 14091 certificate being checked must either be the OCSP signer certificate 14092 or the issuer of the OCSP signer certificate. In the latter case the 14093 OCSP signer certificate must contain the OCSP signing extended key 14094 usage. This check is performed by attempting to match the OCSP 14095 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 14096 in the OCSP_CERTID structures of the response. 14097 14098 *Steve Henson* 14099 14100 * Initial OCSP certificate verification added to OCSP_basic_verify() 14101 and related routines. This uses the standard OpenSSL certificate 14102 verify routines to perform initial checks (just CA validity) and 14103 to obtain the certificate chain. Then additional checks will be 14104 performed on the chain. Currently the root CA is checked to see 14105 if it is explicitly trusted for OCSP signing. This is used to set 14106 a root CA as a global signing root: that is any certificate that 14107 chains to that CA is an acceptable OCSP signing certificate. 14108 14109 *Steve Henson* 14110 14111 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 14112 extensions from a separate configuration file. 14113 As when reading extensions from the main configuration file, 14114 the '-extensions ...' option may be used for specifying the 14115 section to use. 14116 14117 *Massimiliano Pala <madwolf@comune.modena.it>* 14118 14119 * New OCSP utility. Allows OCSP requests to be generated or 14120 read. The request can be sent to a responder and the output 14121 parsed, outputted or printed in text form. Not complete yet: 14122 still needs to check the OCSP response validity. 14123 14124 *Steve Henson* 14125 14126 * New subcommands for 'openssl ca': 14127 `openssl ca -status <serial>` prints the status of the cert with 14128 the given serial number (according to the index file). 14129 `openssl ca -updatedb` updates the expiry status of certificates 14130 in the index file. 14131 14132 *Massimiliano Pala <madwolf@comune.modena.it>* 14133 14134 * New '-newreq-nodes' command option to CA.pl. This is like 14135 '-newreq', but calls 'openssl req' with the '-nodes' option 14136 so that the resulting key is not encrypted. 14137 14138 *Damien Miller <djm@mindrot.org>* 14139 14140 * New configuration for the GNU Hurd. 14141 14142 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 14143 14144 * Initial code to implement OCSP basic response verify. This 14145 is currently incomplete. Currently just finds the signer's 14146 certificate and verifies the signature on the response. 14147 14148 *Steve Henson* 14149 14150 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 14151 value of OPENSSLDIR. This is available via the new '-d' option 14152 to 'openssl version', and is also included in 'openssl version -a'. 14153 14154 *Bodo Moeller* 14155 14156 * Allowing defining memory allocation callbacks that will be given 14157 file name and line number information in additional arguments 14158 (a `const char*` and an int). The basic functionality remains, as 14159 well as the original possibility to just replace malloc(), 14160 realloc() and free() by functions that do not know about these 14161 additional arguments. To register and find out the current 14162 settings for extended allocation functions, the following 14163 functions are provided: 14164 14165 CRYPTO_set_mem_ex_functions 14166 CRYPTO_set_locked_mem_ex_functions 14167 CRYPTO_get_mem_ex_functions 14168 CRYPTO_get_locked_mem_ex_functions 14169 14170 These work the same way as CRYPTO_set_mem_functions and friends. 14171 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 14172 extended allocation function is enabled. 14173 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 14174 a conventional allocation function is enabled. 14175 14176 *Richard Levitte, Bodo Moeller* 14177 14178 * Finish off removing the remaining LHASH function pointer casts. 14179 There should no longer be any prototype-casting required when using 14180 the LHASH abstraction, and any casts that remain are "bugs". See 14181 the callback types and macros at the head of lhash.h for details 14182 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 14183 14184 *Geoff Thorpe* 14185 14186 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 14187 If /dev/[u]random devices are not available or do not return enough 14188 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 14189 be queried. 14190 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 14191 /etc/entropy will be queried once each in this sequence, querying stops 14192 when enough entropy was collected without querying more sockets. 14193 14194 *Lutz Jaenicke* 14195 14196 * Change the Unix RAND_poll() variant to be able to poll several 14197 random devices, as specified by DEVRANDOM, until a sufficient amount 14198 of data has been collected. We spend at most 10 ms on each file 14199 (select timeout) and read in non-blocking mode. DEVRANDOM now 14200 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 14201 (previously it was just the string "/dev/urandom"), so on typical 14202 platforms the 10 ms delay will never occur. 14203 Also separate out the Unix variant to its own file, rand_unix.c. 14204 For VMS, there's a currently-empty rand_vms.c. 14205 14206 *Richard Levitte* 14207 14208 * Move OCSP client related routines to ocsp_cl.c. These 14209 provide utility functions which an application needing 14210 to issue a request to an OCSP responder and analyse the 14211 response will typically need: as opposed to those which an 14212 OCSP responder itself would need which will be added later. 14213 14214 OCSP_request_sign() signs an OCSP request with an API similar 14215 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 14216 response. OCSP_response_get1_basic() extracts basic response 14217 from response. OCSP_resp_find_status(): finds and extracts status 14218 information from an OCSP_CERTID structure (which will be created 14219 when the request structure is built). These are built from lower 14220 level functions which work on OCSP_SINGLERESP structures but 14221 won't normally be used unless the application wishes to examine 14222 extensions in the OCSP response for example. 14223 14224 Replace nonce routines with a pair of functions. 14225 OCSP_request_add1_nonce() adds a nonce value and optionally 14226 generates a random value. OCSP_check_nonce() checks the 14227 validity of the nonce in an OCSP response. 14228 14229 *Steve Henson* 14230 14231 * Change function OCSP_request_add() to OCSP_request_add0_id(). 14232 This doesn't copy the supplied OCSP_CERTID and avoids the 14233 need to free up the newly created id. Change return type 14234 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 14235 This can then be used to add extensions to the request. 14236 Deleted OCSP_request_new(), since most of its functionality 14237 is now in OCSP_REQUEST_new() (and the case insensitive name 14238 clash) apart from the ability to set the request name which 14239 will be added elsewhere. 14240 14241 *Steve Henson* 14242 14243 * Update OCSP API. Remove obsolete extensions argument from 14244 various functions. Extensions are now handled using the new 14245 OCSP extension code. New simple OCSP HTTP function which 14246 can be used to send requests and parse the response. 14247 14248 *Steve Henson* 14249 14250 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 14251 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 14252 uses the special reorder version of SET OF to sort the attributes 14253 and reorder them to match the encoded order. This resolves a long 14254 standing problem: a verify on a PKCS7 structure just after signing 14255 it used to fail because the attribute order did not match the 14256 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 14257 it uses the received order. This is necessary to tolerate some broken 14258 software that does not order SET OF. This is handled by encoding 14259 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 14260 to produce the required SET OF. 14261 14262 *Steve Henson* 14263 14264 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 14265 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 14266 files to get correct declarations of the ASN.1 item variables. 14267 14268 *Richard Levitte* 14269 14270 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 14271 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 14272 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 14273 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 14274 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 14275 ASN1_ITEM and no wrapper functions. 14276 14277 *Steve Henson* 14278 14279 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 14280 replace the old function pointer based I/O routines. Change most of 14281 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 14282 14283 *Steve Henson* 14284 14285 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 14286 lines, recognize more "algorithms" that can be deselected, and make 14287 it complain about algorithm deselection that isn't recognised. 14288 14289 *Richard Levitte* 14290 14291 * New ASN1 functions to handle dup, sign, verify, digest, pack and 14292 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 14293 to use new functions. Add NO_ASN1_OLD which can be set to remove 14294 some old style ASN1 functions: this can be used to determine if old 14295 code will still work when these eventually go away. 14296 14297 *Steve Henson* 14298 14299 * New extension functions for OCSP structures, these follow the 14300 same conventions as certificates and CRLs. 14301 14302 *Steve Henson* 14303 14304 * New function X509V3_add1_i2d(). This automatically encodes and 14305 adds an extension. Its behaviour can be customised with various 14306 flags to append, replace or delete. Various wrappers added for 14307 certificates and CRLs. 14308 14309 *Steve Henson* 14310 14311 * Fix to avoid calling the underlying ASN1 print routine when 14312 an extension cannot be parsed. Correct a typo in the 14313 OCSP_SERVICELOC extension. Tidy up print OCSP format. 14314 14315 *Steve Henson* 14316 14317 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 14318 entries for variables. 14319 14320 *Steve Henson* 14321 14322 * Add functionality to `apps/openssl.c` for detecting locking 14323 problems: As the program is single-threaded, all we have 14324 to do is register a locking callback using an array for 14325 storing which locks are currently held by the program. 14326 14327 *Bodo Moeller* 14328 14329 * Use a lock around the call to CRYPTO_get_ex_new_index() in 14330 SSL_get_ex_data_X509_STORE_idx(), which is used in 14331 ssl_verify_cert_chain() and thus can be called at any time 14332 during TLS/SSL handshakes so that thread-safety is essential. 14333 Unfortunately, the ex_data design is not at all suited 14334 for multi-threaded use, so it probably should be abolished. 14335 14336 *Bodo Moeller* 14337 14338 * Added Broadcom "ubsec" ENGINE to OpenSSL. 14339 14340 *Broadcom, tweaked and integrated by Geoff Thorpe* 14341 14342 * Move common extension printing code to new function 14343 X509V3_print_extensions(). Reorganise OCSP print routines and 14344 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14345 14346 *Steve Henson* 14347 14348 * New function X509_signature_print() to remove duplication in some 14349 print routines. 14350 14351 *Steve Henson* 14352 14353 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14354 set (this was treated exactly the same as SET OF previously). This 14355 is used to reorder the STACK representing the structure to match the 14356 encoding. This will be used to get round a problem where a PKCS7 14357 structure which was signed could not be verified because the STACK 14358 order did not reflect the encoded order. 14359 14360 *Steve Henson* 14361 14362 * Reimplement the OCSP ASN1 module using the new code. 14363 14364 *Steve Henson* 14365 14366 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14367 for its ASN1 operations. The old style function pointers still exist 14368 for now but they will eventually go away. 14369 14370 *Steve Henson* 14371 14372 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14373 completely replaces the old ASN1 functionality with a table driven 14374 encoder and decoder which interprets an ASN1_ITEM structure describing 14375 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14376 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14377 has also been converted to the new form. 14378 14379 *Steve Henson* 14380 14381 * Change BN_mod_exp_recp so that negative moduli are tolerated 14382 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14383 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14384 for negative moduli. 14385 14386 *Bodo Moeller* 14387 14388 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14389 of not touching the result's sign bit. 14390 14391 *Bodo Moeller* 14392 14393 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14394 set. 14395 14396 *Bodo Moeller* 14397 14398 * Changed the LHASH code to use prototypes for callbacks, and created 14399 macros to declare and implement thin (optionally static) functions 14400 that provide type-safety and avoid function pointer casting for the 14401 type-specific callbacks. 14402 14403 *Geoff Thorpe* 14404 14405 * Added Kerberos Cipher Suites to be used with TLS, as written in 14406 RFC 2712. 14407 *Veers Staats <staatsvr@asc.hpc.mil>, 14408 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14409 14410 * Reformat the FAQ so the different questions and answers can be divided 14411 in sections depending on the subject. 14412 14413 *Richard Levitte* 14414 14415 * Have the zlib compression code load ZLIB.DLL dynamically under 14416 Windows. 14417 14418 *Richard Levitte* 14419 14420 * New function BN_mod_sqrt for computing square roots modulo a prime 14421 (using the probabilistic Tonelli-Shanks algorithm unless 14422 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14423 be handled deterministically). 14424 14425 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14426 14427 * Make BN_mod_inverse faster by explicitly handling small quotients 14428 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14429 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14430 14431 *Bodo Moeller* 14432 14433 * New function BN_kronecker. 14434 14435 *Bodo Moeller* 14436 14437 * Fix BN_gcd so that it works on negative inputs; the result is 14438 positive unless both parameters are zero. 14439 Previously something reasonably close to an infinite loop was 14440 possible because numbers could be growing instead of shrinking 14441 in the implementation of Euclid's algorithm. 14442 14443 *Bodo Moeller* 14444 14445 * Fix BN_is_word() and BN_is_one() macros to take into account the 14446 sign of the number in question. 14447 14448 Fix BN_is_word(a,w) to work correctly for w == 0. 14449 14450 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14451 because its test if the absolute value of 'a' equals 'w'. 14452 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14453 it exists mostly for use in the implementations of BN_is_zero(), 14454 BN_is_one(), and BN_is_word(). 14455 14456 *Bodo Moeller* 14457 14458 * New function BN_swap. 14459 14460 *Bodo Moeller* 14461 14462 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14463 the exponentiation functions are more likely to produce reasonable 14464 results on negative inputs. 14465 14466 *Bodo Moeller* 14467 14468 * Change BN_mod_mul so that the result is always non-negative. 14469 Previously, it could be negative if one of the factors was negative; 14470 I don't think anyone really wanted that behaviour. 14471 14472 *Bodo Moeller* 14473 14474 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14475 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14476 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14477 and add new functions: 14478 14479 BN_nnmod 14480 BN_mod_sqr 14481 BN_mod_add 14482 BN_mod_add_quick 14483 BN_mod_sub 14484 BN_mod_sub_quick 14485 BN_mod_lshift1 14486 BN_mod_lshift1_quick 14487 BN_mod_lshift 14488 BN_mod_lshift_quick 14489 14490 These functions always generate non-negative results. 14491 14492 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14493 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14494 14495 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14496 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14497 be reduced modulo `m`. 14498 14499 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14500 14501<!-- 14502 The following entry accidentally appeared in the CHANGES file 14503 distributed with OpenSSL 0.9.7. The modifications described in 14504 it do *not* apply to OpenSSL 0.9.7. 14505 14506 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14507 was actually never needed) and in BN_mul(). The removal in BN_mul() 14508 required a small change in bn_mul_part_recursive() and the addition 14509 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14510 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14511 bn_sub_words() and bn_add_words() except they take arrays with 14512 differing sizes. 14513 14514 *Richard Levitte* 14515--> 14516 14517 * In 'openssl passwd', verify passwords read from the terminal 14518 unless the '-salt' option is used (which usually means that 14519 verification would just waste user's time since the resulting 14520 hash is going to be compared with some given password hash) 14521 or the new '-noverify' option is used. 14522 14523 This is an incompatible change, but it does not affect 14524 non-interactive use of 'openssl passwd' (passwords on the command 14525 line, '-stdin' option, '-in ...' option) and thus should not 14526 cause any problems. 14527 14528 *Bodo Moeller* 14529 14530 * Remove all references to RSAref, since there's no more need for it. 14531 14532 *Richard Levitte* 14533 14534 * Make DSO load along a path given through an environment variable 14535 (SHLIB_PATH) with shl_load(). 14536 14537 *Richard Levitte* 14538 14539 * Constify the ENGINE code as a result of BIGNUM constification. 14540 Also constify the RSA code and most things related to it. In a 14541 few places, most notable in the depth of the ASN.1 code, ugly 14542 casts back to non-const were required (to be solved at a later 14543 time) 14544 14545 *Richard Levitte* 14546 14547 * Make it so the openssl application has all engines loaded by default. 14548 14549 *Richard Levitte* 14550 14551 * Constify the BIGNUM routines a little more. 14552 14553 *Richard Levitte* 14554 14555 * Add the following functions: 14556 14557 ENGINE_load_cswift() 14558 ENGINE_load_chil() 14559 ENGINE_load_atalla() 14560 ENGINE_load_nuron() 14561 ENGINE_load_builtin_engines() 14562 14563 That way, an application can itself choose if external engines that 14564 are built-in in OpenSSL shall ever be used or not. The benefit is 14565 that applications won't have to be linked with libdl or other dso 14566 libraries unless it's really needed. 14567 14568 Changed 'openssl engine' to load all engines on demand. 14569 Changed the engine header files to avoid the duplication of some 14570 declarations (they differed!). 14571 14572 *Richard Levitte* 14573 14574 * 'openssl engine' can now list capabilities. 14575 14576 *Richard Levitte* 14577 14578 * Better error reporting in 'openssl engine'. 14579 14580 *Richard Levitte* 14581 14582 * Never call load_dh_param(NULL) in s_server. 14583 14584 *Bodo Moeller* 14585 14586 * Add engine application. It can currently list engines by name and 14587 identity, and test if they are actually available. 14588 14589 *Richard Levitte* 14590 14591 * Improve RPM specification file by forcing symbolic linking and making 14592 sure the installed documentation is also owned by root.root. 14593 14594 *Damien Miller <djm@mindrot.org>* 14595 14596 * Give the OpenSSL applications more possibilities to make use of 14597 keys (public as well as private) handled by engines. 14598 14599 *Richard Levitte* 14600 14601 * Add OCSP code that comes from CertCo. 14602 14603 *Richard Levitte* 14604 14605 * Add VMS support for the Rijndael code. 14606 14607 *Richard Levitte* 14608 14609 * Added untested support for Nuron crypto accelerator. 14610 14611 *Ben Laurie* 14612 14613 * Add support for external cryptographic devices. This code was 14614 previously distributed separately as the "engine" branch. 14615 14616 *Geoff Thorpe, Richard Levitte* 14617 14618 * Rework the filename-translation in the DSO code. It is now possible to 14619 have far greater control over how a "name" is turned into a filename 14620 depending on the operating environment and any oddities about the 14621 different shared library filenames on each system. 14622 14623 *Geoff Thorpe* 14624 14625 * Support threads on FreeBSD-elf in Configure. 14626 14627 *Richard Levitte* 14628 14629 * Fix for SHA1 assembly problem with MASM: it produces 14630 warnings about corrupt line number information when assembling 14631 with debugging information. This is caused by the overlapping 14632 of two sections. 14633 14634 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14635 14636 * NCONF changes. 14637 NCONF_get_number() has no error checking at all. As a replacement, 14638 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14639 promoted strongly. The old NCONF_get_number is kept around for 14640 binary backward compatibility. 14641 Make it possible for methods to load from something other than a BIO, 14642 by providing a function pointer that is given a name instead of a BIO. 14643 For example, this could be used to load configuration data from an 14644 LDAP server. 14645 14646 *Richard Levitte* 14647 14648 * Fix for non blocking accept BIOs. Added new I/O special reason 14649 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14650 with non blocking I/O was not possible because no retry code was 14651 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14652 this case. 14653 14654 *Steve Henson* 14655 14656 * Added the beginnings of Rijndael support. 14657 14658 *Ben Laurie* 14659 14660 * Fix for bug in DirectoryString mask setting. Add support for 14661 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14662 to allow certificate printing to more controllable, additional 14663 'certopt' option to 'x509' to allow new printing options to be 14664 set. 14665 14666 *Steve Henson* 14667 14668 * Clean old EAY MD5 hack from e_os.h. 14669 14670 *Richard Levitte* 14671 14672### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14673 14674 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14675 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14676 14677 *Joe Orton, Steve Henson* 14678 14679### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14680 14681 * Fix additional bug revealed by the NISCC test suite: 14682 14683 Stop bug triggering large recursion when presented with 14684 certain ASN.1 tags ([CVE-2003-0851]) 14685 14686 *Steve Henson* 14687 14688### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14689 14690 * Fix various bugs revealed by running the NISCC test suite: 14691 14692 Stop out of bounds reads in the ASN1 code when presented with 14693 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14694 14695 If verify callback ignores invalid public key errors don't try to check 14696 certificate signature with the NULL public key. 14697 14698 *Steve Henson* 14699 14700 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14701 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14702 specifications. 14703 14704 *Steve Henson* 14705 14706 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14707 extra data after the compression methods not only for TLS 1.0 14708 but also for SSL 3.0 (as required by the specification). 14709 14710 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14711 14712 * Change X509_certificate_type() to mark the key as exported/exportable 14713 when it's 512 *bits* long, not 512 bytes. 14714 14715 *Richard Levitte* 14716 14717### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14718 14719 * Countermeasure against the Klima-Pokorny-Rosa extension of 14720 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14721 a protocol version number mismatch like a decryption error 14722 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14723 14724 *Bodo Moeller* 14725 14726 * Turn on RSA blinding by default in the default implementation 14727 to avoid a timing attack. Applications that don't want it can call 14728 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14729 They would be ill-advised to do so in most cases. 14730 14731 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14732 14733 * Change RSA blinding code so that it works when the PRNG is not 14734 seeded (in this case, the secret RSA exponent is abused as 14735 an unpredictable seed -- if it is not unpredictable, there 14736 is no point in blinding anyway). Make RSA blinding thread-safe 14737 by remembering the creator's thread ID in rsa->blinding and 14738 having all other threads use local one-time blinding factors 14739 (this requires more computation than sharing rsa->blinding, but 14740 avoids excessive locking; and if an RSA object is not shared 14741 between threads, blinding will still be very fast). 14742 14743 *Bodo Moeller* 14744 14745### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14746 14747 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14748 via timing by performing a MAC computation even if incorrect 14749 block cipher padding has been found. This is a countermeasure 14750 against active attacks where the attacker has to distinguish 14751 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14752 14753 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14754 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14755 Martin Vuagnoux (EPFL, Ilion)* 14756 14757### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14758 14759 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14760 memory from its contents. This is done with a counter that will 14761 place alternating values in each byte. This can be used to solve 14762 two issues: 1) the removal of calls to memset() by highly optimizing 14763 compilers, and 2) cleansing with other values than 0, since those can 14764 be read through on certain media, for example a swap space on disk. 14765 14766 *Geoff Thorpe* 14767 14768 * Bugfix: client side session caching did not work with external caching, 14769 because the session->cipher setting was not restored when reloading 14770 from the external cache. This problem was masked, when 14771 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14772 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14773 14774 *Lutz Jaenicke* 14775 14776 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14777 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14778 14779 *Zeev Lieber <zeev-l@yahoo.com>* 14780 14781 * Undo an undocumented change introduced in 0.9.6e which caused 14782 repeated calls to OpenSSL_add_all_ciphers() and 14783 OpenSSL_add_all_digests() to be ignored, even after calling 14784 EVP_cleanup(). 14785 14786 *Richard Levitte* 14787 14788 * Change the default configuration reader to deal with last line not 14789 being properly terminated. 14790 14791 *Richard Levitte* 14792 14793 * Change X509_NAME_cmp() so it applies the special rules on handling 14794 DN values that are of type PrintableString, as well as RDNs of type 14795 emailAddress where the value has the type ia5String. 14796 14797 *stefank@valicert.com via Richard Levitte* 14798 14799 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14800 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14801 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14802 the bitwise-OR of the two for use by the majority of applications 14803 wanting this behaviour, and update the docs. The documented 14804 behaviour and actual behaviour were inconsistent and had been 14805 changing anyway, so this is more a bug-fix than a behavioural 14806 change. 14807 14808 *Geoff Thorpe, diagnosed by Nadav Har'El* 14809 14810 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14811 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14812 14813 *Bodo Moeller* 14814 14815 * Fix initialization code race conditions in 14816 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14817 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14818 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14819 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14820 ssl2_get_cipher_by_char(), 14821 ssl3_get_cipher_by_char(). 14822 14823 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14824 14825 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14826 the cached sessions are flushed, as the remove_cb() might use ex_data 14827 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14828 (see [openssl.org #212]). 14829 14830 *Geoff Thorpe, Lutz Jaenicke* 14831 14832 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14833 length, instead of the encoding length to d2i_ASN1_OBJECT. 14834 14835 *Steve Henson* 14836 14837### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14838 14839 * [In 0.9.6g-engine release:] 14840 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14841 14842 *Lynn Gazis <lgazis@rainbow.com>* 14843 14844### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14845 14846 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14847 and get fix the header length calculation. 14848 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14849 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14850 14851 * Use proper error handling instead of 'assertions' in buffer 14852 overflow checks added in 0.9.6e. This prevents DoS (the 14853 assertions could call abort()). 14854 14855 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14856 14857### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14858 14859 * Add various sanity checks to asn1_get_length() to reject 14860 the ASN1 length bytes if they exceed sizeof(long), will appear 14861 negative or the content length exceeds the length of the 14862 supplied buffer. 14863 14864 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14865 14866 * Fix cipher selection routines: ciphers without encryption had no flags 14867 for the cipher strength set and where therefore not handled correctly 14868 by the selection routines (PR #130). 14869 14870 *Lutz Jaenicke* 14871 14872 * Fix EVP_dsa_sha macro. 14873 14874 *Nils Larsch* 14875 14876 * New option 14877 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14878 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14879 that was added in OpenSSL 0.9.6d. 14880 14881 As the countermeasure turned out to be incompatible with some 14882 broken SSL implementations, the new option is part of SSL_OP_ALL. 14883 SSL_OP_ALL is usually employed when compatibility with weird SSL 14884 implementations is desired (e.g. '-bugs' option to 's_client' and 14885 's_server'), so the new option is automatically set in many 14886 applications. 14887 14888 *Bodo Moeller* 14889 14890 * Changes in security patch: 14891 14892 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14893 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14894 Air Force Materiel Command, USAF, under agreement number 14895 F30602-01-2-0537. 14896 14897 * Add various sanity checks to asn1_get_length() to reject 14898 the ASN1 length bytes if they exceed sizeof(long), will appear 14899 negative or the content length exceeds the length of the 14900 supplied buffer. ([CVE-2002-0659]) 14901 14902 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14903 14904 * Assertions for various potential buffer overflows, not known to 14905 happen in practice. 14906 14907 *Ben Laurie (CHATS)* 14908 14909 * Various temporary buffers to hold ASCII versions of integers were 14910 too small for 64 bit platforms. ([CVE-2002-0655]) 14911 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14912 14913 * Remote buffer overflow in SSL3 protocol - an attacker could 14914 supply an oversized session ID to a client. ([CVE-2002-0656]) 14915 14916 *Ben Laurie (CHATS)* 14917 14918 * Remote buffer overflow in SSL2 protocol - an attacker could 14919 supply an oversized client master key. ([CVE-2002-0656]) 14920 14921 *Ben Laurie (CHATS)* 14922 14923### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14924 14925 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14926 encoded as NULL) with id-dsa-with-sha1. 14927 14928 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14929 14930 * Check various `X509_...()` return values in `apps/req.c`. 14931 14932 *Nils Larsch <nla@trustcenter.de>* 14933 14934 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14935 an end-of-file condition would erroneously be flagged, when the CRLF 14936 was just at the end of a processed block. The bug was discovered when 14937 processing data through a buffering memory BIO handing the data to a 14938 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14939 <ptsekov@syntrex.com> and Nedelcho Stanev. 14940 14941 *Lutz Jaenicke* 14942 14943 * Implement a countermeasure against a vulnerability recently found 14944 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14945 before application data chunks to avoid the use of known IVs 14946 with data potentially chosen by the attacker. 14947 14948 *Bodo Moeller* 14949 14950 * Fix length checks in ssl3_get_client_hello(). 14951 14952 *Bodo Moeller* 14953 14954 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14955 to prevent ssl3_read_internal() from incorrectly assuming that 14956 ssl3_read_bytes() found application data while handshake 14957 processing was enabled when in fact s->s3->in_read_app_data was 14958 merely automatically cleared during the initial handshake. 14959 14960 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14961 14962 * Fix object definitions for Private and Enterprise: they were not 14963 recognized in their shortname (=lowercase) representation. Extend 14964 obj_dat.pl to issue an error when using undefined keywords instead 14965 of silently ignoring the problem (Svenning Sorensen 14966 <sss@sss.dnsalias.net>). 14967 14968 *Lutz Jaenicke* 14969 14970 * Fix DH_generate_parameters() so that it works for 'non-standard' 14971 generators, i.e. generators other than 2 and 5. (Previously, the 14972 code did not properly initialise the 'add' and 'rem' values to 14973 BN_generate_prime().) 14974 14975 In the new general case, we do not insist that 'generator' is 14976 actually a primitive root: This requirement is rather pointless; 14977 a generator of the order-q subgroup is just as good, if not 14978 better. 14979 14980 *Bodo Moeller* 14981 14982 * Map new X509 verification errors to alerts. Discovered and submitted by 14983 Tom Wu <tom@arcot.com>. 14984 14985 *Lutz Jaenicke* 14986 14987 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 14988 returning non-zero before the data has been completely received 14989 when using non-blocking I/O. 14990 14991 *Bodo Moeller; problem pointed out by John Hughes* 14992 14993 * Some of the ciphers missed the strength entry (SSL_LOW etc). 14994 14995 *Ben Laurie, Lutz Jaenicke* 14996 14997 * Fix bug in SSL_clear(): bad sessions were not removed (found by 14998 Yoram Zahavi <YoramZ@gilian.com>). 14999 15000 *Lutz Jaenicke* 15001 15002 * Add information about CygWin 1.3 and on, and preserve proper 15003 configuration for the versions before that. 15004 15005 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 15006 15007 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 15008 check whether we deal with a copy of a session and do not delete from 15009 the cache in this case. Problem reported by "Izhar Shoshani Levi" 15010 <izhar@checkpoint.com>. 15011 15012 *Lutz Jaenicke* 15013 15014 * Do not store session data into the internal session cache, if it 15015 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 15016 flag is set). Proposed by Aslam <aslam@funk.com>. 15017 15018 *Lutz Jaenicke* 15019 15020 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 15021 value is 0. 15022 15023 *Richard Levitte* 15024 15025 * [In 0.9.6d-engine release:] 15026 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 15027 15028 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 15029 15030 * Add the configuration target linux-s390x. 15031 15032 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 15033 15034 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 15035 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 15036 variable as an indication that a ClientHello message has been 15037 received. As the flag value will be lost between multiple 15038 invocations of ssl3_accept when using non-blocking I/O, the 15039 function may not be aware that a handshake has actually taken 15040 place, thus preventing a new session from being added to the 15041 session cache. 15042 15043 To avoid this problem, we now set s->new_session to 2 instead of 15044 using a local variable. 15045 15046 *Lutz Jaenicke, Bodo Moeller* 15047 15048 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 15049 if the SSL_R_LENGTH_MISMATCH error is detected. 15050 15051 *Geoff Thorpe, Bodo Moeller* 15052 15053 * New 'shared_ldflag' column in Configure platform table. 15054 15055 *Richard Levitte* 15056 15057 * Fix EVP_CIPHER_mode macro. 15058 15059 *"Dan S. Camper" <dan@bti.net>* 15060 15061 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 15062 type, we must throw them away by setting rr->length to 0. 15063 15064 *D P Chang <dpc@qualys.com>* 15065 15066### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 15067 15068 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 15069 <Dominikus.Scherkl@biodata.com>. (The previous implementation 15070 worked incorrectly for those cases where range = `10..._2` and 15071 `3*range` is two bits longer than range.) 15072 15073 *Bodo Moeller* 15074 15075 * Only add signing time to PKCS7 structures if it is not already 15076 present. 15077 15078 *Steve Henson* 15079 15080 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 15081 OBJ_ld_ce should be OBJ_id_ce. 15082 Also some ip-pda OIDs in crypto/objects/objects.txt were 15083 incorrect (cf. RFC 3039). 15084 15085 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 15086 15087 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 15088 returns early because it has nothing to do. 15089 15090 *Andy Schneider <andy.schneider@bjss.co.uk>* 15091 15092 * [In 0.9.6c-engine release:] 15093 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 15094 15095 *Andy Schneider <andy.schneider@bjss.co.uk>* 15096 15097 * [In 0.9.6c-engine release:] 15098 Add support for Cryptographic Appliance's keyserver technology. 15099 (Use engine 'keyclient') 15100 15101 *Cryptographic Appliances and Geoff Thorpe* 15102 15103 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 15104 is called via tools/c89.sh because arguments have to be 15105 rearranged (all '-L' options must appear before the first object 15106 modules). 15107 15108 *Richard Shapiro <rshapiro@abinitio.com>* 15109 15110 * [In 0.9.6c-engine release:] 15111 Add support for Broadcom crypto accelerator cards, backported 15112 from 0.9.7. 15113 15114 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 15115 15116 * [In 0.9.6c-engine release:] 15117 Add support for SureWare crypto accelerator cards from 15118 Baltimore Technologies. (Use engine 'sureware') 15119 15120 *Baltimore Technologies and Mark Cox* 15121 15122 * [In 0.9.6c-engine release:] 15123 Add support for crypto accelerator cards from Accelerated 15124 Encryption Processing, www.aep.ie. (Use engine 'aep') 15125 15126 *AEP Inc. and Mark Cox* 15127 15128 * Add a configuration entry for gcc on UnixWare. 15129 15130 *Gary Benson <gbenson@redhat.com>* 15131 15132 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 15133 messages are stored in a single piece (fixed-length part and 15134 variable-length part combined) and fix various bugs found on the way. 15135 15136 *Bodo Moeller* 15137 15138 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 15139 instead. BIO_gethostbyname() does not know what timeouts are 15140 appropriate, so entries would stay in cache even when they have 15141 become invalid. 15142 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 15143 15144 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 15145 faced with a pathologically small ClientHello fragment that does 15146 not contain client_version: Instead of aborting with an error, 15147 simply choose the highest available protocol version (i.e., 15148 TLS 1.0 unless it is disabled). In practice, ClientHello 15149 messages are never sent like this, but this change gives us 15150 strictly correct behaviour at least for TLS. 15151 15152 *Bodo Moeller* 15153 15154 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 15155 never resets s->method to s->ctx->method when called from within 15156 one of the SSL handshake functions. 15157 15158 *Bodo Moeller; problem pointed out by Niko Baric* 15159 15160 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 15161 (sent using the client's version number) if client_version is 15162 smaller than the protocol version in use. Also change 15163 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 15164 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 15165 the client will at least see that alert. 15166 15167 *Bodo Moeller* 15168 15169 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 15170 correctly. 15171 15172 *Bodo Moeller* 15173 15174 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 15175 client receives HelloRequest while in a handshake. 15176 15177 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 15178 15179 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 15180 should end in 'break', not 'goto end' which circumvents various 15181 cleanups done in state SSL_ST_OK. But session related stuff 15182 must be disabled for SSL_ST_OK in the case that we just sent a 15183 HelloRequest. 15184 15185 Also avoid some overhead by not calling ssl_init_wbio_buffer() 15186 before just sending a HelloRequest. 15187 15188 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 15189 15190 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 15191 reveal whether illegal block cipher padding was found or a MAC 15192 verification error occurred. (Neither SSLerr() codes nor alerts 15193 are directly visible to potential attackers, but the information 15194 may leak via logfiles.) 15195 15196 Similar changes are not required for the SSL 2.0 implementation 15197 because the number of padding bytes is sent in clear for SSL 2.0, 15198 and the extra bytes are just ignored. However ssl/s2_pkt.c 15199 failed to verify that the purported number of padding bytes is in 15200 the legal range. 15201 15202 *Bodo Moeller* 15203 15204 * Add OpenUNIX-8 support including shared libraries 15205 (Boyd Lynn Gerber <gerberb@zenez.com>). 15206 15207 *Lutz Jaenicke* 15208 15209 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 15210 'wristwatch attack' using huge encoding parameters (cf. 15211 James H. Manger's CRYPTO 2001 paper). Note that the 15212 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 15213 encoding parameters and hence was not vulnerable. 15214 15215 *Bodo Moeller* 15216 15217 * BN_sqr() bug fix. 15218 15219 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 15220 15221 * Rabin-Miller test analyses assume uniformly distributed witnesses, 15222 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 15223 followed by modular reduction. 15224 15225 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 15226 15227 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 15228 equivalent based on BN_pseudo_rand() instead of BN_rand(). 15229 15230 *Bodo Moeller* 15231 15232 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 15233 This function was broken, as the check for a new client hello message 15234 to handle SGC did not allow these large messages. 15235 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 15236 15237 *Lutz Jaenicke* 15238 15239 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 15240 15241 *Lutz Jaenicke* 15242 15243 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 15244 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 15245 15246 *Lutz Jaenicke* 15247 15248 * Rework the configuration and shared library support for Tru64 Unix. 15249 The configuration part makes use of modern compiler features and 15250 still retains old compiler behavior for those that run older versions 15251 of the OS. The shared library support part includes a variant that 15252 uses the RPATH feature, and is available through the special 15253 configuration target "alpha-cc-rpath", which will never be selected 15254 automatically. 15255 15256 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 15257 15258 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 15259 with the same message size as in ssl3_get_certificate_request(). 15260 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 15261 messages might inadvertently be reject as too long. 15262 15263 *Petr Lampa <lampa@fee.vutbr.cz>* 15264 15265 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 15266 15267 *Andy Polyakov* 15268 15269 * Modified SSL library such that the verify_callback that has been set 15270 specifically for an SSL object with SSL_set_verify() is actually being 15271 used. Before the change, a verify_callback set with this function was 15272 ignored and the verify_callback() set in the SSL_CTX at the time of 15273 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 15274 to allow the necessary settings. 15275 15276 *Lutz Jaenicke* 15277 15278 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 15279 explicitly to NULL, as at least on Solaris 8 this seems not always to be 15280 done automatically (in contradiction to the requirements of the C 15281 standard). This made problems when used from OpenSSH. 15282 15283 *Lutz Jaenicke* 15284 15285 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 15286 dh->length and always used 15287 15288 BN_rand_range(priv_key, dh->p). 15289 15290 BN_rand_range() is not necessary for Diffie-Hellman, and this 15291 specific range makes Diffie-Hellman unnecessarily inefficient if 15292 dh->length (recommended exponent length) is much smaller than the 15293 length of dh->p. We could use BN_rand_range() if the order of 15294 the subgroup was stored in the DH structure, but we only have 15295 dh->length. 15296 15297 So switch back to 15298 15299 BN_rand(priv_key, l, ...) 15300 15301 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 15302 otherwise. 15303 15304 *Bodo Moeller* 15305 15306 * In 15307 15308 RSA_eay_public_encrypt 15309 RSA_eay_private_decrypt 15310 RSA_eay_private_encrypt (signing) 15311 RSA_eay_public_decrypt (signature verification) 15312 15313 (default implementations for RSA_public_encrypt, 15314 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 15315 always reject numbers >= n. 15316 15317 *Bodo Moeller* 15318 15319 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 15320 to synchronize access to 'locking_thread'. This is necessary on 15321 systems where access to 'locking_thread' (an 'unsigned long' 15322 variable) is not atomic. 15323 15324 *Bodo Moeller* 15325 15326 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 15327 *before* setting the 'crypto_lock_rand' flag. The previous code had 15328 a race condition if 0 is a valid thread ID. 15329 15330 *Travis Vitek <vitek@roguewave.com>* 15331 15332 * Add support for shared libraries under Irix. 15333 15334 *Albert Chin-A-Young <china@thewrittenword.com>* 15335 15336 * Add configuration option to build on Linux on both big-endian and 15337 little-endian MIPS. 15338 15339 *Ralf Baechle <ralf@uni-koblenz.de>* 15340 15341 * Add the possibility to create shared libraries on HP-UX. 15342 15343 *Richard Levitte* 15344 15345### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15346 15347 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15348 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15349 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15350 PRNG state recovery was possible based on the output of 15351 one PRNG request appropriately sized to gain knowledge on 15352 'md' followed by enough consecutive 1-byte PRNG requests 15353 to traverse all of 'state'. 15354 15355 1. When updating 'md_local' (the current thread's copy of 'md') 15356 during PRNG output generation, hash all of the previous 15357 'md_local' value, not just the half used for PRNG output. 15358 15359 2. Make the number of bytes from 'state' included into the hash 15360 independent from the number of PRNG bytes requested. 15361 15362 The first measure alone would be sufficient to avoid 15363 Markku-Juhani's attack. (Actually it had never occurred 15364 to me that the half of 'md_local' used for chaining was the 15365 half from which PRNG output bytes were taken -- I had always 15366 assumed that the secret half would be used.) The second 15367 measure makes sure that additional data from 'state' is never 15368 mixed into 'md_local' in small portions; this heuristically 15369 further strengthens the PRNG. 15370 15371 *Bodo Moeller* 15372 15373 * Fix crypto/bn/asm/mips3.s. 15374 15375 *Andy Polyakov* 15376 15377 * When only the key is given to "enc", the IV is undefined. Print out 15378 an error message in this case. 15379 15380 *Lutz Jaenicke* 15381 15382 * Handle special case when X509_NAME is empty in X509 printing routines. 15383 15384 *Steve Henson* 15385 15386 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15387 positive and less than q. 15388 15389 *Bodo Moeller* 15390 15391 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15392 used: it isn't thread safe and the add_lock_callback should handle 15393 that itself. 15394 15395 *Paul Rose <Paul.Rose@bridge.com>* 15396 15397 * Verify that incoming data obeys the block size in 15398 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15399 15400 *Bodo Moeller* 15401 15402 * Fix OAEP check. 15403 15404 *Ulf Möller, Bodo Möller* 15405 15406 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15407 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15408 when fixing the server behaviour for backwards-compatible 'client 15409 hello' messages. (Note that the attack is impractical against 15410 SSL 3.0 and TLS 1.0 anyway because length and version checking 15411 means that the probability of guessing a valid ciphertext is 15412 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15413 paper.) 15414 15415 Before 0.9.5, the countermeasure (hide the error by generating a 15416 random 'decryption result') did not work properly because 15417 ERR_clear_error() was missing, meaning that SSL_get_error() would 15418 detect the supposedly ignored error. 15419 15420 Both problems are now fixed. 15421 15422 *Bodo Moeller* 15423 15424 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15425 (previously it was 1024). 15426 15427 *Bodo Moeller* 15428 15429 * Fix for compatibility mode trust settings: ignore trust settings 15430 unless some valid trust or reject settings are present. 15431 15432 *Steve Henson* 15433 15434 * Fix for blowfish EVP: its a variable length cipher. 15435 15436 *Steve Henson* 15437 15438 * Fix various bugs related to DSA S/MIME verification. Handle missing 15439 parameters in DSA public key structures and return an error in the 15440 DSA routines if parameters are absent. 15441 15442 *Steve Henson* 15443 15444 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15445 in the current directory if neither $RANDFILE nor $HOME was set. 15446 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15447 caused some confusion to Windows users who haven't defined $HOME. 15448 Thus RAND_file_name() is changed again: e_os.h can define a 15449 DEFAULT_HOME, which will be used if $HOME is not set. 15450 For Windows, we use "C:"; on other platforms, we still require 15451 environment variables. 15452 15453 * Move 'if (!initialized) RAND_poll()' into regions protected by 15454 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15455 having multiple threads call RAND_poll() concurrently. 15456 15457 *Bodo Moeller* 15458 15459 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15460 combination of a flag and a thread ID variable. 15461 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15462 flag), *other* threads can enter ssleay_add_bytes without obeying 15463 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15464 that they do not hold after the first thread unsets add_do_not_lock). 15465 15466 *Bodo Moeller* 15467 15468 * Change bctest again: '-x' expressions are not available in all 15469 versions of 'test'. 15470 15471 *Bodo Moeller* 15472 15473### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15474 15475 * Fix a couple of memory leaks in PKCS7_dataDecode() 15476 15477 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15478 15479 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15480 the default extension for executables, if any. Also, make the perl 15481 scripts that use symlink() to test if it really exists and use "cp" 15482 if it doesn't. All this made OpenSSL compilable and installable in 15483 CygWin. 15484 15485 *Richard Levitte* 15486 15487 * Fix for asn1_GetSequence() for indefinite length constructed data. 15488 If SEQUENCE is length is indefinite just set c->slen to the total 15489 amount of data available. 15490 15491 *Steve Henson, reported by shige@FreeBSD.org* 15492 15493 *This change does not apply to 0.9.7.* 15494 15495 * Change bctest to avoid here-documents inside command substitution 15496 (workaround for FreeBSD /bin/sh bug). 15497 For compatibility with Ultrix, avoid shell functions (introduced 15498 in the bctest version that searches along $PATH). 15499 15500 *Bodo Moeller* 15501 15502 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15503 with des_encrypt() defined on some operating systems, like Solaris 15504 and UnixWare. 15505 15506 *Richard Levitte* 15507 15508 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15509 On the Importance of Eliminating Errors in Cryptographic 15510 Computations, J. Cryptology 14 (2001) 2, 101-119, 15511 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15512 15513 *Ulf Moeller* 15514 15515 * MIPS assembler BIGNUM division bug fix. 15516 15517 *Andy Polyakov* 15518 15519 * Disabled incorrect Alpha assembler code. 15520 15521 *Richard Levitte* 15522 15523 * Fix PKCS#7 decode routines so they correctly update the length 15524 after reading an EOC for the EXPLICIT tag. 15525 15526 *Steve Henson* 15527 15528 *This change does not apply to 0.9.7.* 15529 15530 * Fix bug in PKCS#12 key generation routines. This was triggered 15531 if a 3DES key was generated with a 0 initial byte. Include 15532 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15533 (but broken) behaviour. 15534 15535 *Steve Henson* 15536 15537 * Enhance bctest to search for a working bc along $PATH and print 15538 it when found. 15539 15540 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15541 15542 * Fix memory leaks in err.c: free err_data string if necessary; 15543 don't write to the wrong index in ERR_set_error_data. 15544 15545 *Bodo Moeller* 15546 15547 * Implement ssl23_peek (analogous to ssl23_read), which previously 15548 did not exist. 15549 15550 *Bodo Moeller* 15551 15552 * Replace rdtsc with `_emit` statements for VC++ version 5. 15553 15554 *Jeremy Cooper <jeremy@baymoo.org>* 15555 15556 * Make it possible to reuse SSLv2 sessions. 15557 15558 *Richard Levitte* 15559 15560 * In copy_email() check for >= 0 as a return value for 15561 X509_NAME_get_index_by_NID() since 0 is a valid index. 15562 15563 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15564 15565 * Avoid coredump with unsupported or invalid public keys by checking if 15566 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15567 PKCS7_verify() fails with non detached data. 15568 15569 *Steve Henson* 15570 15571 * Don't use getenv in library functions when run as setuid/setgid. 15572 New function OPENSSL_issetugid(). 15573 15574 *Ulf Moeller* 15575 15576 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15577 due to incorrect handling of multi-threading: 15578 15579 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15580 15581 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15582 15583 3. Count how many times MemCheck_off() has been called so that 15584 nested use can be treated correctly. This also avoids 15585 inband-signalling in the previous code (which relied on the 15586 assumption that thread ID 0 is impossible). 15587 15588 *Bodo Moeller* 15589 15590 * Add "-rand" option also to s_client and s_server. 15591 15592 *Lutz Jaenicke* 15593 15594 * Fix CPU detection on Irix 6.x. 15595 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15596 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15597 15598 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15599 was empty. 15600 15601 *Steve Henson* 15602 15603 *This change does not apply to 0.9.7.* 15604 15605 * Use the cached encoding of an X509_NAME structure rather than 15606 copying it. This is apparently the reason for the libsafe "errors" 15607 but the code is actually correct. 15608 15609 *Steve Henson* 15610 15611 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15612 Bleichenbacher's DSA attack. 15613 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15614 to be set and top=0 forces the highest bit to be set; top=-1 is new 15615 and leaves the highest bit random. 15616 15617 *Ulf Moeller, Bodo Moeller* 15618 15619 * In the `NCONF_...`-based implementations for `CONF_...` queries 15620 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15621 a temporary CONF structure with the data component set to NULL 15622 (which gives segmentation faults in lh_retrieve). 15623 Instead, use NULL for the CONF pointer in CONF_get_string and 15624 CONF_get_number (which may use environment variables) and directly 15625 return NULL from CONF_get_section. 15626 15627 *Bodo Moeller* 15628 15629 * Fix potential buffer overrun for EBCDIC. 15630 15631 *Ulf Moeller* 15632 15633 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15634 keyUsage if basicConstraints absent for a CA. 15635 15636 *Steve Henson* 15637 15638 * Make SMIME_write_PKCS7() write mail header values with a format that 15639 is more generally accepted (no spaces before the semicolon), since 15640 some programs can't parse those values properly otherwise. Also make 15641 sure BIO's that break lines after each write do not create invalid 15642 headers. 15643 15644 *Richard Levitte* 15645 15646 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15647 macros previously used would not encode an empty SEQUENCE OF 15648 and break the signature. 15649 15650 *Steve Henson* 15651 15652 *This change does not apply to 0.9.7.* 15653 15654 * Zero the premaster secret after deriving the master secret in 15655 DH ciphersuites. 15656 15657 *Steve Henson* 15658 15659 * Add some EVP_add_digest_alias registrations (as found in 15660 OpenSSL_add_all_digests()) to SSL_library_init() 15661 aka OpenSSL_add_ssl_algorithms(). This provides improved 15662 compatibility with peers using X.509 certificates 15663 with unconventional AlgorithmIdentifier OIDs. 15664 15665 *Bodo Moeller* 15666 15667 * Fix for Irix with NO_ASM. 15668 15669 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15670 15671 * ./config script fixes. 15672 15673 *Ulf Moeller, Richard Levitte* 15674 15675 * Fix 'openssl passwd -1'. 15676 15677 *Bodo Moeller* 15678 15679 * Change PKCS12_key_gen_asc() so it can cope with non null 15680 terminated strings whose length is passed in the passlen 15681 parameter, for example from PEM callbacks. This was done 15682 by adding an extra length parameter to asc2uni(). 15683 15684 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15685 15686 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15687 call failed, free the DSA structure. 15688 15689 *Bodo Moeller* 15690 15691 * Fix to uni2asc() to cope with zero length Unicode strings. 15692 These are present in some PKCS#12 files. 15693 15694 *Steve Henson* 15695 15696 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15697 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15698 when writing a 32767 byte record. 15699 15700 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15701 15702 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15703 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15704 15705 (RSA objects have a reference count access to which is protected 15706 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15707 so they are meant to be shared between threads.) 15708 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15709 "Reddie, Steven" <Steven.Reddie@ca.com>* 15710 15711 * Fix a deadlock in CRYPTO_mem_leaks(). 15712 15713 *Bodo Moeller* 15714 15715 * Use better test patterns in bntest. 15716 15717 *Ulf Möller* 15718 15719 * rand_win.c fix for Borland C. 15720 15721 *Ulf Möller* 15722 15723 * BN_rshift bugfix for n == 0. 15724 15725 *Bodo Moeller* 15726 15727 * Add a 'bctest' script that checks for some known 'bc' bugs 15728 so that 'make test' does not abort just because 'bc' is broken. 15729 15730 *Bodo Moeller* 15731 15732 * Store verify_result within SSL_SESSION also for client side to 15733 avoid potential security hole. (Re-used sessions on the client side 15734 always resulted in verify_result==X509_V_OK, not using the original 15735 result of the server certificate verification.) 15736 15737 *Lutz Jaenicke* 15738 15739 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15740 SSL3_RT_APPLICATION_DATA, return 0. 15741 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15742 15743 *Bodo Moeller* 15744 15745 * Fix SSL_peek: 15746 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15747 releases, have been re-implemented by renaming the previous 15748 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15749 and ssl3_read_internal, respectively, and adding 'peek' parameters 15750 to them. The new ssl[23]_{read,peek} functions are calls to 15751 ssl[23]_read_internal with the 'peek' flag set appropriately. 15752 A 'peek' parameter has also been added to ssl3_read_bytes, which 15753 does the actual work for ssl3_read_internal. 15754 15755 *Bodo Moeller* 15756 15757 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15758 the method-specific "init()" handler. Also clean up ex_data after 15759 calling the method-specific "finish()" handler. Previously, this was 15760 happening the other way round. 15761 15762 *Geoff Thorpe* 15763 15764 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15765 The previous value, 12, was not always sufficient for BN_mod_exp(). 15766 15767 *Bodo Moeller* 15768 15769 * Make sure that shared libraries get the internal name engine with 15770 the full version number and not just 0. This should mark the 15771 shared libraries as not backward compatible. Of course, this should 15772 be changed again when we can guarantee backward binary compatibility. 15773 15774 *Richard Levitte* 15775 15776 * Fix typo in get_cert_by_subject() in by_dir.c 15777 15778 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15779 15780 * Rework the system to generate shared libraries: 15781 15782 - Make note of the expected extension for the shared libraries and 15783 if there is a need for symbolic links from for example libcrypto.so.0 15784 to libcrypto.so.0.9.7. There is extended info in Configure for 15785 that. 15786 15787 - Make as few rebuilds of the shared libraries as possible. 15788 15789 - Still avoid linking the OpenSSL programs with the shared libraries. 15790 15791 - When installing, install the shared libraries separately from the 15792 static ones. 15793 15794 *Richard Levitte* 15795 15796 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15797 15798 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15799 and not in SSL_clear because the latter is also used by the 15800 accept/connect functions; previously, the settings made by 15801 SSL_set_read_ahead would be lost during the handshake. 15802 15803 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15804 15805 * Correct util/mkdef.pl to be selective about disabled algorithms. 15806 Previously, it would create entries for disabled algorithms no 15807 matter what. 15808 15809 *Richard Levitte* 15810 15811 * Added several new manual pages for SSL_* function. 15812 15813 *Lutz Jaenicke* 15814 15815### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15816 15817 * In ssl23_get_client_hello, generate an error message when faced 15818 with an initial SSL 3.0/TLS record that is too small to contain the 15819 first two bytes of the ClientHello message, i.e. client_version. 15820 (Note that this is a pathologic case that probably has never happened 15821 in real life.) The previous approach was to use the version number 15822 from the record header as a substitute; but our protocol choice 15823 should not depend on that one because it is not authenticated 15824 by the Finished messages. 15825 15826 *Bodo Moeller* 15827 15828 * More robust randomness gathering functions for Windows. 15829 15830 *Jeffrey Altman <jaltman@columbia.edu>* 15831 15832 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15833 not set then we don't setup the error code for issuer check errors 15834 to avoid possibly overwriting other errors which the callback does 15835 handle. If an application does set the flag then we assume it knows 15836 what it is doing and can handle the new informational codes 15837 appropriately. 15838 15839 *Steve Henson* 15840 15841 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15842 a general "ANY" type, as such it should be able to decode anything 15843 including tagged types. However it didn't check the class so it would 15844 wrongly interpret tagged types in the same way as their universal 15845 counterpart and unknown types were just rejected. Changed so that the 15846 tagged and unknown types are handled in the same way as a SEQUENCE: 15847 that is the encoding is stored intact. There is also a new type 15848 "V_ASN1_OTHER" which is used when the class is not universal, in this 15849 case we have no idea what the actual type is so we just lump them all 15850 together. 15851 15852 *Steve Henson* 15853 15854 * On VMS, stdout may very well lead to a file that is written to 15855 in a record-oriented fashion. That means that every write() will 15856 write a separate record, which will be read separately by the 15857 programs trying to read from it. This can be very confusing. 15858 15859 The solution is to put a BIO filter in the way that will buffer 15860 text until a linefeed is reached, and then write everything a 15861 line at a time, so every record written will be an actual line, 15862 not chunks of lines and not (usually doesn't happen, but I've 15863 seen it once) several lines in one record. BIO_f_linebuffer() is 15864 the answer. 15865 15866 Currently, it's a VMS-only method, because that's where it has 15867 been tested well enough. 15868 15869 *Richard Levitte* 15870 15871 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15872 it can return incorrect results. 15873 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15874 but it was in 0.9.6-beta[12].) 15875 15876 *Bodo Moeller* 15877 15878 * Disable the check for content being present when verifying detached 15879 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15880 include zero length content when signing messages. 15881 15882 *Steve Henson* 15883 15884 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15885 BIO_ctrl (for BIO pairs). 15886 15887 *Bodo Möller* 15888 15889 * Add DSO method for VMS. 15890 15891 *Richard Levitte* 15892 15893 * Bug fix: Montgomery multiplication could produce results with the 15894 wrong sign. 15895 15896 *Ulf Möller* 15897 15898 * Add RPM specification openssl.spec and modify it to build three 15899 packages. The default package contains applications, application 15900 documentation and run-time libraries. The devel package contains 15901 include files, static libraries and function documentation. The 15902 doc package contains the contents of the doc directory. The original 15903 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15904 15905 *Richard Levitte* 15906 15907 * Add a large number of documentation files for many SSL routines. 15908 15909 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15910 15911 * Add a configuration entry for Sony News 4. 15912 15913 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15914 15915 * Don't set the two most significant bits to one when generating a 15916 random number < q in the DSA library. 15917 15918 *Ulf Möller* 15919 15920 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15921 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15922 the underlying transport is blocking) if a handshake took place. 15923 (The default behaviour is needed by applications such as s_client 15924 and s_server that use select() to determine when to use SSL_read; 15925 but for applications that know in advance when to expect data, it 15926 just makes things more complicated.) 15927 15928 *Bodo Moeller* 15929 15930 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15931 from EGD. 15932 15933 *Ben Laurie* 15934 15935 * Add a few more EBCDIC conditionals that make `req` and `x509` 15936 work better on such systems. 15937 15938 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15939 15940 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15941 Update PKCS12_parse() so it copies the friendlyName and the 15942 keyid to the certificates aux info. 15943 15944 *Steve Henson* 15945 15946 * Fix bug in PKCS7_verify() which caused an infinite loop 15947 if there was more than one signature. 15948 15949 *Sven Uszpelkat <su@celocom.de>* 15950 15951 * Major change in util/mkdef.pl to include extra information 15952 about each symbol, as well as presenting variables as well 15953 as functions. This change means that there's n more need 15954 to rebuild the .num files when some algorithms are excluded. 15955 15956 *Richard Levitte* 15957 15958 * Allow the verify time to be set by an application, 15959 rather than always using the current time. 15960 15961 *Steve Henson* 15962 15963 * Phase 2 verify code reorganisation. The certificate 15964 verify code now looks up an issuer certificate by a 15965 number of criteria: subject name, authority key id 15966 and key usage. It also verifies self signed certificates 15967 by the same criteria. The main comparison function is 15968 X509_check_issued() which performs these checks. 15969 15970 Lot of changes were necessary in order to support this 15971 without completely rewriting the lookup code. 15972 15973 Authority and subject key identifier are now cached. 15974 15975 The LHASH 'certs' is X509_STORE has now been replaced 15976 by a STACK_OF(X509_OBJECT). This is mainly because an 15977 LHASH can't store or retrieve multiple objects with 15978 the same hash value. 15979 15980 As a result various functions (which were all internal 15981 use only) have changed to handle the new X509_STORE 15982 structure. This will break anything that messed round 15983 with X509_STORE internally. 15984 15985 The functions X509_STORE_add_cert() now checks for an 15986 exact match, rather than just subject name. 15987 15988 The X509_STORE API doesn't directly support the retrieval 15989 of multiple certificates matching a given criteria, however 15990 this can be worked round by performing a lookup first 15991 (which will fill the cache with candidate certificates) 15992 and then examining the cache for matches. This is probably 15993 the best we can do without throwing out X509_LOOKUP 15994 entirely (maybe later...). 15995 15996 The X509_VERIFY_CTX structure has been enhanced considerably. 15997 15998 All certificate lookup operations now go via a get_issuer() 15999 callback. Although this currently uses an X509_STORE it 16000 can be replaced by custom lookups. This is a simple way 16001 to bypass the X509_STORE hackery necessary to make this 16002 work and makes it possible to use more efficient techniques 16003 in future. A very simple version which uses a simple 16004 STACK for its trusted certificate store is also provided 16005 using X509_STORE_CTX_trusted_stack(). 16006 16007 The verify_cb() and verify() callbacks now have equivalents 16008 in the X509_STORE_CTX structure. 16009 16010 X509_STORE_CTX also has a 'flags' field which can be used 16011 to customise the verify behaviour. 16012 16013 *Steve Henson* 16014 16015 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 16016 excludes S/MIME capabilities. 16017 16018 *Steve Henson* 16019 16020 * When a certificate request is read in keep a copy of the 16021 original encoding of the signed data and use it when outputting 16022 again. Signatures then use the original encoding rather than 16023 a decoded, encoded version which may cause problems if the 16024 request is improperly encoded. 16025 16026 *Steve Henson* 16027 16028 * For consistency with other BIO_puts implementations, call 16029 buffer_write(b, ...) directly in buffer_puts instead of calling 16030 BIO_write(b, ...). 16031 16032 In BIO_puts, increment b->num_write as in BIO_write. 16033 16034 *Peter.Sylvester@EdelWeb.fr* 16035 16036 * Fix BN_mul_word for the case where the word is 0. (We have to use 16037 BN_zero, we may not return a BIGNUM with an array consisting of 16038 words set to zero.) 16039 16040 *Bodo Moeller* 16041 16042 * Avoid calling abort() from within the library when problems are 16043 detected, except if preprocessor symbols have been defined 16044 (such as REF_CHECK, BN_DEBUG etc.). 16045 16046 *Bodo Moeller* 16047 16048 * New openssl application 'rsautl'. This utility can be 16049 used for low-level RSA operations. DER public key 16050 BIO/fp routines also added. 16051 16052 *Steve Henson* 16053 16054 * New Configure entry and patches for compiling on QNX 4. 16055 16056 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 16057 16058 * A demo state-machine implementation was sponsored by 16059 Nuron (<http://www.nuron.com/>) and is now available in 16060 demos/state_machine. 16061 16062 *Ben Laurie* 16063 16064 * New options added to the 'dgst' utility for signature 16065 generation and verification. 16066 16067 *Steve Henson* 16068 16069 * Unrecognized PKCS#7 content types are now handled via a 16070 catch all ASN1_TYPE structure. This allows unsupported 16071 types to be stored as a "blob" and an application can 16072 encode and decode it manually. 16073 16074 *Steve Henson* 16075 16076 * Fix various signed/unsigned issues to make a_strex.c 16077 compile under VC++. 16078 16079 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 16080 16081 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 16082 length if passed a buffer. ASN1_INTEGER_to_BN failed 16083 if passed a NULL BN and its argument was negative. 16084 16085 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 16086 16087 * Modification to PKCS#7 encoding routines to output definite 16088 length encoding. Since currently the whole structures are in 16089 memory there's not real point in using indefinite length 16090 constructed encoding. However if OpenSSL is compiled with 16091 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 16092 16093 *Steve Henson* 16094 16095 * Added BIO_vprintf() and BIO_vsnprintf(). 16096 16097 *Richard Levitte* 16098 16099 * Added more prefixes to parse for in the strings written 16100 through a logging bio, to cover all the levels that are available 16101 through syslog. The prefixes are now: 16102 16103 PANIC, EMERG, EMR => LOG_EMERG 16104 ALERT, ALR => LOG_ALERT 16105 CRIT, CRI => LOG_CRIT 16106 ERROR, ERR => LOG_ERR 16107 WARNING, WARN, WAR => LOG_WARNING 16108 NOTICE, NOTE, NOT => LOG_NOTICE 16109 INFO, INF => LOG_INFO 16110 DEBUG, DBG => LOG_DEBUG 16111 16112 and as before, if none of those prefixes are present at the 16113 beginning of the string, LOG_ERR is chosen. 16114 16115 On Win32, the `LOG_*` levels are mapped according to this: 16116 16117 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 16118 LOG_WARNING => EVENTLOG_WARNING_TYPE 16119 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 16120 16121 *Richard Levitte* 16122 16123 * Made it possible to reconfigure with just the configuration 16124 argument "reconf" or "reconfigure". The command line arguments 16125 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 16126 and are retrieved from there when reconfiguring. 16127 16128 *Richard Levitte* 16129 16130 * MD4 implemented. 16131 16132 *Assar Westerlund <assar@sics.se>, Richard Levitte* 16133 16134 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 16135 16136 *Richard Levitte* 16137 16138 * The obj_dat.pl script was messing up the sorting of object 16139 names. The reason was that it compared the quoted version 16140 of strings as a result "OCSP" > "OCSP Signing" because 16141 " > SPACE. Changed script to store unquoted versions of 16142 names and add quotes on output. It was also omitting some 16143 names from the lookup table if they were given a default 16144 value (that is if SN is missing it is given the same 16145 value as LN and vice versa), these are now added on the 16146 grounds that if an object has a name we should be able to 16147 look it up. Finally added warning output when duplicate 16148 short or long names are found. 16149 16150 *Steve Henson* 16151 16152 * Changes needed for Tandem NSK. 16153 16154 *Scott Uroff <scott@xypro.com>* 16155 16156 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 16157 RSA_padding_check_SSLv23(), special padding was never detected 16158 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 16159 version rollback attacks was not effective. 16160 16161 In s23_clnt.c, don't use special rollback-attack detection padding 16162 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 16163 client; similarly, in s23_srvr.c, don't do the rollback check if 16164 SSL 2.0 is the only protocol enabled in the server. 16165 16166 *Bodo Moeller* 16167 16168 * Make it possible to get hexdumps of unprintable data with 'openssl 16169 asn1parse'. By implication, the functions ASN1_parse_dump() and 16170 BIO_dump_indent() are added. 16171 16172 *Richard Levitte* 16173 16174 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 16175 these print out strings and name structures based on various 16176 flags including RFC2253 support and proper handling of 16177 multibyte characters. Added options to the 'x509' utility 16178 to allow the various flags to be set. 16179 16180 *Steve Henson* 16181 16182 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 16183 Also change the functions X509_cmp_current_time() and 16184 X509_gmtime_adj() work with an ASN1_TIME structure, 16185 this will enable certificates using GeneralizedTime in validity 16186 dates to be checked. 16187 16188 *Steve Henson* 16189 16190 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 16191 negative public key encodings) on by default, 16192 NO_NEG_PUBKEY_BUG can be set to disable it. 16193 16194 *Steve Henson* 16195 16196 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 16197 content octets. An i2c_ASN1_OBJECT is unnecessary because 16198 the encoding can be trivially obtained from the structure. 16199 16200 *Steve Henson* 16201 16202 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 16203 not read locks (`CRYPTO_r_[un]lock`). 16204 16205 *Bodo Moeller* 16206 16207 * A first attempt at creating official support for shared 16208 libraries through configuration. I've kept it so the 16209 default is static libraries only, and the OpenSSL programs 16210 are always statically linked for now, but there are 16211 preparations for dynamic linking in place. 16212 This has been tested on Linux and Tru64. 16213 16214 *Richard Levitte* 16215 16216 * Randomness polling function for Win9x, as described in: 16217 Peter Gutmann, Software Generation of Practically Strong 16218 Random Numbers. 16219 16220 *Ulf Möller* 16221 16222 * Fix so PRNG is seeded in req if using an already existing 16223 DSA key. 16224 16225 *Steve Henson* 16226 16227 * New options to smime application. -inform and -outform 16228 allow alternative formats for the S/MIME message including 16229 PEM and DER. The -content option allows the content to be 16230 specified separately. This should allow things like Netscape 16231 form signing output easier to verify. 16232 16233 *Steve Henson* 16234 16235 * Fix the ASN1 encoding of tags using the 'long form'. 16236 16237 *Steve Henson* 16238 16239 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 16240 STRING types. These convert content octets to and from the 16241 underlying type. The actual tag and length octets are 16242 already assumed to have been read in and checked. These 16243 are needed because all other string types have virtually 16244 identical handling apart from the tag. By having versions 16245 of the ASN1 functions that just operate on content octets 16246 IMPLICIT tagging can be handled properly. It also allows 16247 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 16248 and ASN1_INTEGER are identical apart from the tag. 16249 16250 *Steve Henson* 16251 16252 * Change the handling of OID objects as follows: 16253 16254 - New object identifiers are inserted in objects.txt, following 16255 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 16256 - objects.pl is used to process obj_mac.num and create a new 16257 obj_mac.h. 16258 - obj_dat.pl is used to create a new obj_dat.h, using the data in 16259 obj_mac.h. 16260 16261 This is currently kind of a hack, and the perl code in objects.pl 16262 isn't very elegant, but it works as I intended. The simplest way 16263 to check that it worked correctly is to look in obj_dat.h and 16264 check the array nid_objs and make sure the objects haven't moved 16265 around (this is important!). Additions are OK, as well as 16266 consistent name changes. 16267 16268 *Richard Levitte* 16269 16270 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 16271 16272 *Bodo Moeller* 16273 16274 * Addition of the command line parameter '-rand file' to 'openssl req'. 16275 The given file adds to whatever has already been seeded into the 16276 random pool through the RANDFILE configuration file option or 16277 environment variable, or the default random state file. 16278 16279 *Richard Levitte* 16280 16281 * mkstack.pl now sorts each macro group into lexical order. 16282 Previously the output order depended on the order the files 16283 appeared in the directory, resulting in needless rewriting 16284 of safestack.h . 16285 16286 *Steve Henson* 16287 16288 * Patches to make OpenSSL compile under Win32 again. Mostly 16289 work arounds for the VC++ problem that it treats func() as 16290 func(void). Also stripped out the parts of mkdef.pl that 16291 added extra typesafe functions: these no longer exist. 16292 16293 *Steve Henson* 16294 16295 * Reorganisation of the stack code. The macros are now all 16296 collected in safestack.h . Each macro is defined in terms of 16297 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 16298 DEBUG_SAFESTACK is now handled in terms of function casts, 16299 this has the advantage of retaining type safety without the 16300 use of additional functions. If DEBUG_SAFESTACK is not defined 16301 then the non typesafe macros are used instead. Also modified the 16302 mkstack.pl script to handle the new form. Needs testing to see 16303 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 16304 the default if no major problems. Similar behaviour for ASN1_SET_OF 16305 and PKCS12_STACK_OF. 16306 16307 *Steve Henson* 16308 16309 * When some versions of IIS use the 'NET' form of private key the 16310 key derivation algorithm is different. Normally MD5(password) is 16311 used as a 128 bit RC4 key. In the modified case 16312 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 16313 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 16314 as the old Netscape_RSA functions except they have an additional 16315 'sgckey' parameter which uses the modified algorithm. Also added 16316 an -sgckey command line option to the rsa utility. Thanks to 16317 Adrian Peck <bertie@ncipher.com> for posting details of the modified 16318 algorithm to openssl-dev. 16319 16320 *Steve Henson* 16321 16322 * The evp_local.h macros were using 'c.##kname' which resulted in 16323 invalid expansion on some systems (SCO 5.0.5 for example). 16324 Corrected to 'c.kname'. 16325 16326 *Phillip Porch <root@theporch.com>* 16327 16328 * New X509_get1_email() and X509_REQ_get1_email() functions that return 16329 a STACK of email addresses from a certificate or request, these look 16330 in the subject name and the subject alternative name extensions and 16331 omit any duplicate addresses. 16332 16333 *Steve Henson* 16334 16335 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 16336 This makes DSA verification about 2 % faster. 16337 16338 *Bodo Moeller* 16339 16340 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 16341 (meaning that now 2^5 values will be precomputed, which is only 4 KB 16342 plus overhead for 1024 bit moduli). 16343 This makes exponentiations about 0.5 % faster for 1024 bit 16344 exponents (as measured by "openssl speed rsa2048"). 16345 16346 *Bodo Moeller* 16347 16348 * Rename memory handling macros to avoid conflicts with other 16349 software: 16350 Malloc => OPENSSL_malloc 16351 Malloc_locked => OPENSSL_malloc_locked 16352 Realloc => OPENSSL_realloc 16353 Free => OPENSSL_free 16354 16355 *Richard Levitte* 16356 16357 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16358 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16359 16360 *Bodo Moeller* 16361 16362 * CygWin32 support. 16363 16364 *John Jarvie <jjarvie@newsguy.com>* 16365 16366 * The type-safe stack code has been rejigged. It is now only compiled 16367 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16368 by default all type-specific stack functions are "#define"d back to 16369 standard stack functions. This results in more streamlined output 16370 but retains the type-safety checking possibilities of the original 16371 approach. 16372 16373 *Geoff Thorpe* 16374 16375 * The STACK code has been cleaned up, and certain type declarations 16376 that didn't make a lot of sense have been brought in line. This has 16377 also involved a cleanup of sorts in safestack.h to more correctly 16378 map type-safe stack functions onto their plain stack counterparts. 16379 This work has also resulted in a variety of "const"ifications of 16380 lots of the code, especially `_cmp` operations which should normally 16381 be prototyped with "const" parameters anyway. 16382 16383 *Geoff Thorpe* 16384 16385 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16386 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16387 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16388 where all of 'md' is used each time the PRNG is used, but 'state' 16389 is used only indexed by a cyclic counter. As entropy may not be 16390 well distributed from the beginning, 'md' is important as a 16391 chaining variable. However, the output function chains only half 16392 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16393 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16394 in all of 'state' being rewritten, with the new values depending 16395 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16396 16397 *Bodo Moeller* 16398 16399 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16400 the handshake is continued after ssl_verify_cert_chain(); 16401 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16402 can lead to 'unexplainable' connection aborts later. 16403 16404 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16405 16406 * Major EVP API cipher revision. 16407 Add hooks for extra EVP features. This allows various cipher 16408 parameters to be set in the EVP interface. Support added for variable 16409 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16410 setting of RC2 and RC5 parameters. 16411 16412 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16413 ciphers. 16414 16415 Remove lots of duplicated code from the EVP library. For example *every* 16416 cipher init() function handles the 'iv' in the same way according to the 16417 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16418 for CFB and OFB modes they zero ctx->num. 16419 16420 New functionality allows removal of S/MIME code RC2 hack. 16421 16422 Most of the routines have the same form and so can be declared in terms 16423 of macros. 16424 16425 By shifting this to the top level EVP_CipherInit() it can be removed from 16426 all individual ciphers. If the cipher wants to handle IVs or keys 16427 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16428 flags. 16429 16430 Change lots of functions like EVP_EncryptUpdate() to now return a 16431 value: although software versions of the algorithms cannot fail 16432 any installed hardware versions can. 16433 16434 *Steve Henson* 16435 16436 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16437 this option is set, tolerate broken clients that send the negotiated 16438 protocol version number instead of the requested protocol version 16439 number. 16440 16441 *Bodo Moeller* 16442 16443 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16444 i.e. non-zero for export ciphersuites, zero otherwise. 16445 Previous versions had this flag inverted, inconsistent with 16446 rsa_tmp_cb (..._TMP_RSA_CB). 16447 16448 *Bodo Moeller; problem reported by Amit Chopra* 16449 16450 * Add missing DSA library text string. Work around for some IIS 16451 key files with invalid SEQUENCE encoding. 16452 16453 *Steve Henson* 16454 16455 * Add a document (doc/standards.txt) that list all kinds of standards 16456 and so on that are implemented in OpenSSL. 16457 16458 *Richard Levitte* 16459 16460 * Enhance c_rehash script. Old version would mishandle certificates 16461 with the same subject name hash and wouldn't handle CRLs at all. 16462 Added -fingerprint option to crl utility, to support new c_rehash 16463 features. 16464 16465 *Steve Henson* 16466 16467 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16468 16469 *Ulf Möller* 16470 16471 * Fix for SSL server purpose checking. Server checking was 16472 rejecting certificates which had extended key usage present 16473 but no ssl client purpose. 16474 16475 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16476 16477 * Make PKCS#12 code work with no password. The PKCS#12 spec 16478 is a little unclear about how a blank password is handled. 16479 Since the password in encoded as a BMPString with terminating 16480 double NULL a zero length password would end up as just the 16481 double NULL. However no password at all is different and is 16482 handled differently in the PKCS#12 key generation code. NS 16483 treats a blank password as zero length. MSIE treats it as no 16484 password on export: but it will try both on import. We now do 16485 the same: PKCS12_parse() tries zero length and no password if 16486 the password is set to "" or NULL (NULL is now a valid password: 16487 it wasn't before) as does the pkcs12 application. 16488 16489 *Steve Henson* 16490 16491 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16492 perror when PEM_read_bio_X509_REQ fails, the error message must 16493 be obtained from the error queue. 16494 16495 *Bodo Moeller* 16496 16497 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16498 it in ERR_remove_state if appropriate, and change ERR_get_state 16499 accordingly to avoid race conditions (this is necessary because 16500 thread_hash is no longer constant once set). 16501 16502 *Bodo Moeller* 16503 16504 * Bugfix for linux-elf makefile.one. 16505 16506 *Ulf Möller* 16507 16508 * RSA_get_default_method() will now cause a default 16509 RSA_METHOD to be chosen if one doesn't exist already. 16510 Previously this was only set during a call to RSA_new() 16511 or RSA_new_method(NULL) meaning it was possible for 16512 RSA_get_default_method() to return NULL. 16513 16514 *Geoff Thorpe* 16515 16516 * Added native name translation to the existing DSO code 16517 that will convert (if the flag to do so is set) filenames 16518 that are sufficiently small and have no path information 16519 into a canonical native form. Eg. "blah" converted to 16520 "libblah.so" or "blah.dll" etc. 16521 16522 *Geoff Thorpe* 16523 16524 * New function ERR_error_string_n(e, buf, len) which is like 16525 ERR_error_string(e, buf), but writes at most 'len' bytes 16526 including the 0 terminator. For ERR_error_string_n, 'buf' 16527 may not be NULL. 16528 16529 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16530 16531 * CONF library reworked to become more general. A new CONF 16532 configuration file reader "class" is implemented as well as a 16533 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16534 old `CONF_*` functions are still there, but are reimplemented to 16535 work in terms of the new functions. Also, a set of functions 16536 to handle the internal storage of the configuration data is 16537 provided to make it easier to write new configuration file 16538 reader "classes" (I can definitely see something reading a 16539 configuration file in XML format, for example), called `_CONF_*`, 16540 or "the configuration storage API"... 16541 16542 The new configuration file reading functions are: 16543 16544 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16545 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16546 16547 NCONF_default, NCONF_WIN32 16548 16549 NCONF_dump_fp, NCONF_dump_bio 16550 16551 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16552 NCONF_new creates a new CONF object. This works in the same way 16553 as other interfaces in OpenSSL, like the BIO interface. 16554 `NCONF_dump_*` dump the internal storage of the configuration file, 16555 which is useful for debugging. All other functions take the same 16556 arguments as the old `CONF_*` functions with the exception of the 16557 first that must be a `CONF *` instead of a `LHASH *`. 16558 16559 To make it easier to use the new classes with the old `CONF_*` functions, 16560 the function CONF_set_default_method is provided. 16561 16562 *Richard Levitte* 16563 16564 * Add '-tls1' option to 'openssl ciphers', which was already 16565 mentioned in the documentation but had not been implemented. 16566 (This option is not yet really useful because even the additional 16567 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16568 16569 *Bodo Moeller* 16570 16571 * Initial DSO code added into libcrypto for letting OpenSSL (and 16572 OpenSSL-based applications) load shared libraries and bind to 16573 them in a portable way. 16574 16575 *Geoff Thorpe, with contributions from Richard Levitte* 16576 16577### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16578 16579 * Make sure _lrotl and _lrotr are only used with MSVC. 16580 16581 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16582 (the default implementation of RAND_status). 16583 16584 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16585 to '-clrext' (= clear extensions), as intended and documented. 16586 *Bodo Moeller; inconsistency pointed out by Michael Attili 16587 <attili@amaxo.com>* 16588 16589 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16590 was larger than the MD block size. 16591 16592 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16593 16594 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16595 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16596 using the passed key: if the passed key was a private key the result 16597 of X509_print(), for example, would be to print out all the private key 16598 components. 16599 16600 *Steve Henson* 16601 16602 * des_quad_cksum() byte order bug fix. 16603 *Ulf Möller, using the problem description in krb4-0.9.7, where 16604 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16605 16606 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16607 discouraged. 16608 16609 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16610 16611 * For easily testing in shell scripts whether some command 16612 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16613 returns with exit code 0 iff no command of the given name is available. 16614 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16615 the output goes to stdout and nothing is printed to stderr. 16616 Additional arguments are always ignored. 16617 16618 Since for each cipher there is a command of the same name, 16619 the 'no-cipher' compilation switches can be tested this way. 16620 16621 ('openssl no-XXX' is not able to detect pseudo-commands such 16622 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16623 16624 *Bodo Moeller* 16625 16626 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16627 16628 *Bodo Moeller* 16629 16630 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16631 is set; it will be thrown away anyway because each handshake creates 16632 its own key. 16633 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16634 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16635 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16636 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16637 16638 *Bodo Moeller* 16639 16640 * New s_client option -ign_eof: EOF at stdin is ignored, and 16641 'Q' and 'R' lose their special meanings (quit/renegotiate). 16642 This is part of what -quiet does; unlike -quiet, -ign_eof 16643 does not suppress any output. 16644 16645 *Richard Levitte* 16646 16647 * Add compatibility options to the purpose and trust code. The 16648 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16649 accepts a certificate or CA, this was the previous behaviour, 16650 with all the associated security issues. 16651 16652 X509_TRUST_COMPAT is the old trust behaviour: only and 16653 automatically trust self signed roots in certificate store. A 16654 new trust setting X509_TRUST_DEFAULT is used to specify that 16655 a purpose has no associated trust setting and it should instead 16656 use the value in the default purpose. 16657 16658 *Steve Henson* 16659 16660 * Fix the PKCS#8 DSA private key code so it decodes keys again 16661 and fix a memory leak. 16662 16663 *Steve Henson* 16664 16665 * In util/mkerr.pl (which implements 'make errors'), preserve 16666 reason strings from the previous version of the .c file, as 16667 the default to have only downcase letters (and digits) in 16668 automatically generated reasons codes is not always appropriate. 16669 16670 *Bodo Moeller* 16671 16672 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16673 using strerror. Previously, ERR_reason_error_string() returned 16674 library names as reason strings for SYSerr; but SYSerr is a special 16675 case where small numbers are errno values, not library numbers. 16676 16677 *Bodo Moeller* 16678 16679 * Add '-dsaparam' option to 'openssl dhparam' application. This 16680 converts DSA parameters into DH parameters. (When creating parameters, 16681 DSA_generate_parameters is used.) 16682 16683 *Bodo Moeller* 16684 16685 * Include 'length' (recommended exponent length) in C code generated 16686 by 'openssl dhparam -C'. 16687 16688 *Bodo Moeller* 16689 16690 * The second argument to set_label in perlasm was already being used 16691 so couldn't be used as a "file scope" flag. Moved to third argument 16692 which was free. 16693 16694 *Steve Henson* 16695 16696 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16697 instead of RAND_bytes for encryption IVs and salts. 16698 16699 *Bodo Moeller* 16700 16701 * Include RAND_status() into RAND_METHOD instead of implementing 16702 it only for md_rand.c Otherwise replacing the PRNG by calling 16703 RAND_set_rand_method would be impossible. 16704 16705 *Bodo Moeller* 16706 16707 * Don't let DSA_generate_key() enter an infinite loop if the random 16708 number generation fails. 16709 16710 *Bodo Moeller* 16711 16712 * New 'rand' application for creating pseudo-random output. 16713 16714 *Bodo Moeller* 16715 16716 * Added configuration support for Linux/IA64 16717 16718 *Rolf Haberrecker <rolf@suse.de>* 16719 16720 * Assembler module support for Mingw32. 16721 16722 *Ulf Möller* 16723 16724 * Shared library support for HPUX (in shlib/). 16725 16726 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16727 16728 * Shared library support for Solaris gcc. 16729 16730 *Lutz Behnke <behnke@trustcenter.de>* 16731 16732### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16733 16734 * PKCS7_encrypt() was adding text MIME headers twice because they 16735 were added manually and by SMIME_crlf_copy(). 16736 16737 *Steve Henson* 16738 16739 * In bntest.c don't call BN_rand with zero bits argument. 16740 16741 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16742 16743 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16744 case was implemented. This caused BN_div_recp() to fail occasionally. 16745 16746 *Ulf Möller* 16747 16748 * Add an optional second argument to the set_label() in the perl 16749 assembly language builder. If this argument exists and is set 16750 to 1 it signals that the assembler should use a symbol whose 16751 scope is the entire file, not just the current function. This 16752 is needed with MASM which uses the format label:: for this scope. 16753 16754 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16755 16756 * Change the ASN1 types so they are typedefs by default. Before 16757 almost all types were #define'd to ASN1_STRING which was causing 16758 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16759 for example. 16760 16761 *Steve Henson* 16762 16763 * Change names of new functions to the new get1/get0 naming 16764 convention: After 'get1', the caller owns a reference count 16765 and has to call `..._free`; 'get0' returns a pointer to some 16766 data structure without incrementing reference counters. 16767 (Some of the existing 'get' functions increment a reference 16768 counter, some don't.) 16769 Similarly, 'set1' and 'add1' functions increase reference 16770 counters or duplicate objects. 16771 16772 *Steve Henson* 16773 16774 * Allow for the possibility of temp RSA key generation failure: 16775 the code used to assume it always worked and crashed on failure. 16776 16777 *Steve Henson* 16778 16779 * Fix potential buffer overrun problem in BIO_printf(). 16780 *Ulf Möller, using public domain code by Patrick Powell; problem 16781 pointed out by David Sacerdote <das33@cornell.edu>* 16782 16783 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16784 RAND_egd() and RAND_status(). In the command line application, 16785 the EGD socket can be specified like a seed file using RANDFILE 16786 or -rand. 16787 16788 *Ulf Möller* 16789 16790 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16791 Some CAs (e.g. Verisign) distribute certificates in this form. 16792 16793 *Steve Henson* 16794 16795 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16796 list to exclude them. This means that no special compilation option 16797 is needed to use anonymous DH: it just needs to be included in the 16798 cipher list. 16799 16800 *Steve Henson* 16801 16802 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16803 EVP_MD_type. The old functionality is available in a new macro called 16804 EVP_MD_md(). Change code that uses it and update docs. 16805 16806 *Steve Henson* 16807 16808 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16809 where the `void *` argument is replaced by a function pointer argument. 16810 Previously `void *` was abused to point to functions, which works on 16811 many platforms, but is not correct. As these functions are usually 16812 called by macros defined in OpenSSL header files, most source code 16813 should work without changes. 16814 16815 *Richard Levitte* 16816 16817 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16818 sections with information on -D... compiler switches used for 16819 compiling the library so that applications can see them. To enable 16820 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16821 must be defined. E.g., 16822 #define OPENSSL_ALGORITHM_DEFINES 16823 #include <openssl/opensslconf.h> 16824 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16825 16826 *Richard Levitte, Ulf and Bodo Möller* 16827 16828 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16829 record layer. 16830 16831 *Bodo Moeller* 16832 16833 * Change the 'other' type in certificate aux info to a STACK_OF 16834 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16835 the required ASN1 format: arbitrary types determined by an OID. 16836 16837 *Steve Henson* 16838 16839 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16840 argument to 'req'. This is not because the function is newer or 16841 better than others it just uses the work 'NEW' in the certificate 16842 request header lines. Some software needs this. 16843 16844 *Steve Henson* 16845 16846 * Reorganise password command line arguments: now passwords can be 16847 obtained from various sources. Delete the PEM_cb function and make 16848 it the default behaviour: i.e. if the callback is NULL and the 16849 usrdata argument is not NULL interpret it as a null terminated pass 16850 phrase. If usrdata and the callback are NULL then the pass phrase 16851 is prompted for as usual. 16852 16853 *Steve Henson* 16854 16855 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16856 the support is automatically enabled. The resulting binaries will 16857 autodetect the card and use it if present. 16858 16859 *Ben Laurie and Compaq Inc.* 16860 16861 * Work around for Netscape hang bug. This sends certificate request 16862 and server done in one record. Since this is perfectly legal in the 16863 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16864 the bugs/SSLv3 entry for more info. 16865 16866 *Steve Henson* 16867 16868 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16869 16870 *Andy Polyakov* 16871 16872 * Add -rand argument to smime and pkcs12 applications and read/write 16873 of seed file. 16874 16875 *Steve Henson* 16876 16877 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16878 16879 *Bodo Moeller* 16880 16881 * Add command line password options to the remaining applications. 16882 16883 *Steve Henson* 16884 16885 * Bug fix for BN_div_recp() for numerators with an even number of 16886 bits. 16887 16888 *Ulf Möller* 16889 16890 * More tests in bntest.c, and changed test_bn output. 16891 16892 *Ulf Möller* 16893 16894 * ./config recognizes MacOS X now. 16895 16896 *Andy Polyakov* 16897 16898 * Bug fix for BN_div() when the first words of num and divisor are 16899 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16900 16901 *Ulf Möller* 16902 16903 * Add support for various broken PKCS#8 formats, and command line 16904 options to produce them. 16905 16906 *Steve Henson* 16907 16908 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16909 get temporary BIGNUMs from a BN_CTX. 16910 16911 *Ulf Möller* 16912 16913 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16914 for p == 0. 16915 16916 *Ulf Möller* 16917 16918 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16919 include a #define from the old name to the new. The original intent 16920 was that statically linked binaries could for example just call 16921 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16922 link with digests. This never worked because SSLeay_add_all_digests() 16923 and SSLeay_add_all_ciphers() were in the same source file so calling 16924 one would link with the other. They are now in separate source files. 16925 16926 *Steve Henson* 16927 16928 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16929 16930 *Steve Henson* 16931 16932 * Use a less unusual form of the Miller-Rabin primality test (it used 16933 a binary algorithm for exponentiation integrated into the Miller-Rabin 16934 loop, our standard modexp algorithms are faster). 16935 16936 *Bodo Moeller* 16937 16938 * Support for the EBCDIC character set completed. 16939 16940 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16941 16942 * Source code cleanups: use const where appropriate, eliminate casts, 16943 use `void *` instead of `char *` in lhash. 16944 16945 *Ulf Möller* 16946 16947 * Bugfix: ssl3_send_server_key_exchange was not restartable 16948 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16949 this the server could overwrite ephemeral keys that the client 16950 has already seen). 16951 16952 *Bodo Moeller* 16953 16954 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16955 using 50 iterations of the Rabin-Miller test. 16956 16957 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16958 iterations of the Rabin-Miller test as required by the appendix 16959 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16960 As BN_is_prime_fasttest includes trial division, DSA parameter 16961 generation becomes much faster. 16962 16963 This implies a change for the callback functions in DSA_is_prime 16964 and DSA_generate_parameters: The callback function is called once 16965 for each positive witness in the Rabin-Miller test, not just 16966 occasionally in the inner loop; and the parameters to the 16967 callback function now provide an iteration count for the outer 16968 loop rather than for the current invocation of the inner loop. 16969 DSA_generate_parameters additionally can call the callback 16970 function with an 'iteration count' of -1, meaning that a 16971 candidate has passed the trial division test (when q is generated 16972 from an application-provided seed, trial division is skipped). 16973 16974 *Bodo Moeller* 16975 16976 * New function BN_is_prime_fasttest that optionally does trial 16977 division before starting the Rabin-Miller test and has 16978 an additional BN_CTX * argument (whereas BN_is_prime always 16979 has to allocate at least one BN_CTX). 16980 'callback(1, -1, cb_arg)' is called when a number has passed the 16981 trial division stage. 16982 16983 *Bodo Moeller* 16984 16985 * Fix for bug in CRL encoding. The validity dates weren't being handled 16986 as ASN1_TIME. 16987 16988 *Steve Henson* 16989 16990 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 16991 16992 *Steve Henson* 16993 16994 * New function BN_pseudo_rand(). 16995 16996 *Ulf Möller* 16997 16998 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 16999 bignum version of BN_from_montgomery() with the working code from 17000 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 17001 the comments. 17002 17003 *Ulf Möller* 17004 17005 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 17006 made it impossible to use the same SSL_SESSION data structure in 17007 SSL2 clients in multiple threads. 17008 17009 *Bodo Moeller* 17010 17011 * The return value of RAND_load_file() no longer counts bytes obtained 17012 by stat(). RAND_load_file(..., -1) is new and uses the complete file 17013 to seed the PRNG (previously an explicit byte count was required). 17014 17015 *Ulf Möller, Bodo Möller* 17016 17017 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 17018 used `char *` instead of `void *` and had casts all over the place. 17019 17020 *Steve Henson* 17021 17022 * Make BN_generate_prime() return NULL on error if ret!=NULL. 17023 17024 *Ulf Möller* 17025 17026 * Retain source code compatibility for BN_prime_checks macro: 17027 BN_is_prime(..., BN_prime_checks, ...) now uses 17028 BN_prime_checks_for_size to determine the appropriate number of 17029 Rabin-Miller iterations. 17030 17031 *Ulf Möller* 17032 17033 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 17034 DH_CHECK_P_NOT_SAFE_PRIME. 17035 (Check if this is true? OpenPGP calls them "strong".) 17036 17037 *Ulf Möller* 17038 17039 * Merge the functionality of "dh" and "gendh" programs into a new program 17040 "dhparam". The old programs are retained for now but will handle DH keys 17041 (instead of parameters) in future. 17042 17043 *Steve Henson* 17044 17045 * Make the ciphers, s_server and s_client programs check the return values 17046 when a new cipher list is set. 17047 17048 *Steve Henson* 17049 17050 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 17051 ciphers. Before when the 56bit ciphers were enabled the sorting was 17052 wrong. 17053 17054 The syntax for the cipher sorting has been extended to support sorting by 17055 cipher-strength (using the strength_bits hard coded in the tables). 17056 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 17057 17058 Fix a bug in the cipher-command parser: when supplying a cipher command 17059 string with an "undefined" symbol (neither command nor alphanumeric 17060 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 17061 an error is flagged. 17062 17063 Due to the strength-sorting extension, the code of the 17064 ssl_create_cipher_list() function was completely rearranged. I hope that 17065 the readability was also increased :-) 17066 17067 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 17068 17069 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 17070 for the first serial number and places 2 in the serial number file. This 17071 avoids problems when the root CA is created with serial number zero and 17072 the first user certificate has the same issuer name and serial number 17073 as the root CA. 17074 17075 *Steve Henson* 17076 17077 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 17078 the new code. Add documentation for this stuff. 17079 17080 *Steve Henson* 17081 17082 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 17083 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 17084 structures and behave in an analogous way to the X509v3 functions: 17085 they shouldn't be called directly but wrapper functions should be used 17086 instead. 17087 17088 So we also now have some wrapper functions that call the X509at functions 17089 when passed certificate requests. (TO DO: similar things can be done with 17090 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 17091 things. Some of these need some d2i or i2d and print functionality 17092 because they handle more complex structures.) 17093 17094 *Steve Henson* 17095 17096 * Add missing #ifndefs that caused missing symbols when building libssl 17097 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 17098 NO_RSA in `ssl/s2*.c`. 17099 17100 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 17101 17102 * Precautions against using the PRNG uninitialized: RAND_bytes() now 17103 has a return value which indicates the quality of the random data 17104 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 17105 error queue. New function RAND_pseudo_bytes() generates output that is 17106 guaranteed to be unique but not unpredictable. RAND_add is like 17107 RAND_seed, but takes an extra argument for an entropy estimate 17108 (RAND_seed always assumes full entropy). 17109 17110 *Ulf Möller* 17111 17112 * Do more iterations of Rabin-Miller probable prime test (specifically, 17113 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 17114 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 17115 in crypto/bn/bn_prime.c for the complete table). This guarantees a 17116 false-positive rate of at most 2^-80 for random input. 17117 17118 *Bodo Moeller* 17119 17120 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 17121 17122 *Bodo Moeller* 17123 17124 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 17125 in the 0.9.5 release), this returns the chain 17126 from an X509_CTX structure with a dup of the stack and all 17127 the X509 reference counts upped: so the stack will exist 17128 after X509_CTX_cleanup() has been called. Modify pkcs12.c 17129 to use this. 17130 17131 Also make SSL_SESSION_print() print out the verify return 17132 code. 17133 17134 *Steve Henson* 17135 17136 * Add manpage for the pkcs12 command. Also change the default 17137 behaviour so MAC iteration counts are used unless the new 17138 -nomaciter option is used. This improves file security and 17139 only older versions of MSIE (4.0 for example) need it. 17140 17141 *Steve Henson* 17142 17143 * Honor the no-xxx Configure options when creating .DEF files. 17144 17145 *Ulf Möller* 17146 17147 * Add PKCS#10 attributes to field table: challengePassword, 17148 unstructuredName and unstructuredAddress. These are taken from 17149 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 17150 international characters are used. 17151 17152 More changes to X509_ATTRIBUTE code: allow the setting of types 17153 based on strings. Remove the 'loc' parameter when adding 17154 attributes because these will be a SET OF encoding which is sorted 17155 in ASN1 order. 17156 17157 *Steve Henson* 17158 17159 * Initial changes to the 'req' utility to allow request generation 17160 automation. This will allow an application to just generate a template 17161 file containing all the field values and have req construct the 17162 request. 17163 17164 Initial support for X509_ATTRIBUTE handling. Stacks of these are 17165 used all over the place including certificate requests and PKCS#7 17166 structures. They are currently handled manually where necessary with 17167 some primitive wrappers for PKCS#7. The new functions behave in a 17168 manner analogous to the X509 extension functions: they allow 17169 attributes to be looked up by NID and added. 17170 17171 Later something similar to the X509V3 code would be desirable to 17172 automatically handle the encoding, decoding and printing of the 17173 more complex types. The string types like challengePassword can 17174 be handled by the string table functions. 17175 17176 Also modified the multi byte string table handling. Now there is 17177 a 'global mask' which masks out certain types. The table itself 17178 can use the flag STABLE_NO_MASK to ignore the mask setting: this 17179 is useful when for example there is only one permissible type 17180 (as in countryName) and using the mask might result in no valid 17181 types at all. 17182 17183 *Steve Henson* 17184 17185 * Clean up 'Finished' handling, and add functions SSL_get_finished and 17186 SSL_get_peer_finished to allow applications to obtain the latest 17187 Finished messages sent to the peer or expected from the peer, 17188 respectively. (SSL_get_peer_finished is usually the Finished message 17189 actually received from the peer, otherwise the protocol will be aborted.) 17190 17191 As the Finished message are message digests of the complete handshake 17192 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 17193 be used for external authentication procedures when the authentication 17194 provided by SSL/TLS is not desired or is not enough. 17195 17196 *Bodo Moeller* 17197 17198 * Enhanced support for Alpha Linux is added. Now ./config checks if 17199 the host supports BWX extension and if Compaq C is present on the 17200 $PATH. Just exploiting of the BWX extension results in 20-30% 17201 performance kick for some algorithms, e.g. DES and RC4 to mention 17202 a couple. Compaq C in turn generates ~20% faster code for MD5 and 17203 SHA1. 17204 17205 *Andy Polyakov* 17206 17207 * Add support for MS "fast SGC". This is arguably a violation of the 17208 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 17209 weak crypto and after checking the certificate is SGC a second one 17210 with strong crypto. MS SGC stops the first handshake after receiving 17211 the server certificate message and sends a second client hello. Since 17212 a server will typically do all the time consuming operations before 17213 expecting any further messages from the client (server key exchange 17214 is the most expensive) there is little difference between the two. 17215 17216 To get OpenSSL to support MS SGC we have to permit a second client 17217 hello message after we have sent server done. In addition we have to 17218 reset the MAC if we do get this second client hello. 17219 17220 *Steve Henson* 17221 17222 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 17223 if a DER encoded private key is RSA or DSA traditional format. Changed 17224 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 17225 format DER encoded private key. Newer code should use PKCS#8 format which 17226 has the key type encoded in the ASN1 structure. Added DER private key 17227 support to pkcs8 application. 17228 17229 *Steve Henson* 17230 17231 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 17232 ciphersuites has been selected (as required by the SSL 3/TLS 1 17233 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 17234 is set, we interpret this as a request to violate the specification 17235 (the worst that can happen is a handshake failure, and 'correct' 17236 behaviour would result in a handshake failure anyway). 17237 17238 *Bodo Moeller* 17239 17240 * In SSL_CTX_add_session, take into account that there might be multiple 17241 SSL_SESSION structures with the same session ID (e.g. when two threads 17242 concurrently obtain them from an external cache). 17243 The internal cache can handle only one SSL_SESSION with a given ID, 17244 so if there's a conflict, we now throw out the old one to achieve 17245 consistency. 17246 17247 *Bodo Moeller* 17248 17249 * Add OIDs for idea and blowfish in CBC mode. This will allow both 17250 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 17251 some routines that use cipher OIDs: some ciphers do not have OIDs 17252 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 17253 example. 17254 17255 *Steve Henson* 17256 17257 * Simplify the trust setting structure and code. Now we just have 17258 two sequences of OIDs for trusted and rejected settings. These will 17259 typically have values the same as the extended key usage extension 17260 and any application specific purposes. 17261 17262 The trust checking code now has a default behaviour: it will just 17263 check for an object with the same NID as the passed id. Functions can 17264 be provided to override either the default behaviour or the behaviour 17265 for a given id. SSL client, server and email already have functions 17266 in place for compatibility: they check the NID and also return "trusted" 17267 if the certificate is self signed. 17268 17269 *Steve Henson* 17270 17271 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 17272 traditional format into an EVP_PKEY structure. 17273 17274 *Steve Henson* 17275 17276 * Add a password callback function PEM_cb() which either prompts for 17277 a password if usr_data is NULL or otherwise assumes it is a null 17278 terminated password. Allow passwords to be passed on command line 17279 environment or config files in a few more utilities. 17280 17281 *Steve Henson* 17282 17283 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 17284 keys. Add some short names for PKCS#8 PBE algorithms and allow them 17285 to be specified on the command line for the pkcs8 and pkcs12 utilities. 17286 Update documentation. 17287 17288 *Steve Henson* 17289 17290 * Support for ASN1 "NULL" type. This could be handled before by using 17291 ASN1_TYPE but there wasn't any function that would try to read a NULL 17292 and produce an error if it couldn't. For compatibility we also have 17293 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 17294 don't allocate anything because they don't need to. 17295 17296 *Steve Henson* 17297 17298 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 17299 for details. 17300 17301 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 17302 17303 * Rebuild of the memory allocation routines used by OpenSSL code and 17304 possibly others as well. The purpose is to make an interface that 17305 provide hooks so anyone can build a separate set of allocation and 17306 deallocation routines to be used by OpenSSL, for example memory 17307 pool implementations, or something else, which was previously hard 17308 since Malloc(), Realloc() and Free() were defined as macros having 17309 the values malloc, realloc and free, respectively (except for Win32 17310 compilations). The same is provided for memory debugging code. 17311 OpenSSL already comes with functionality to find memory leaks, but 17312 this gives people a chance to debug other memory problems. 17313 17314 With these changes, a new set of functions and macros have appeared: 17315 17316 CRYPTO_set_mem_debug_functions() [F] 17317 CRYPTO_get_mem_debug_functions() [F] 17318 CRYPTO_dbg_set_options() [F] 17319 CRYPTO_dbg_get_options() [F] 17320 CRYPTO_malloc_debug_init() [M] 17321 17322 The memory debug functions are NULL by default, unless the library 17323 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 17324 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 17325 gives the standard debugging functions that come with OpenSSL) or 17326 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 17327 provided by the library user) must be used. When the standard 17328 debugging functions are used, CRYPTO_dbg_set_options can be used to 17329 request additional information: 17330 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 17331 the CRYPTO_MDEBUG_xxx macro when compiling the library. 17332 17333 Also, things like CRYPTO_set_mem_functions will always give the 17334 expected result (the new set of functions is used for allocation 17335 and deallocation) at all times, regardless of platform and compiler 17336 options. 17337 17338 To finish it up, some functions that were never use in any other 17339 way than through macros have a new API and new semantic: 17340 17341 CRYPTO_dbg_malloc() 17342 CRYPTO_dbg_realloc() 17343 CRYPTO_dbg_free() 17344 17345 All macros of value have retained their old syntax. 17346 17347 *Richard Levitte and Bodo Moeller* 17348 17349 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17350 ordering of SMIMECapabilities wasn't in "strength order" and there 17351 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17352 algorithm. 17353 17354 *Steve Henson* 17355 17356 * Some ASN1 types with illegal zero length encoding (INTEGER, 17357 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17358 17359 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17360 17361 * Merge in my S/MIME library for OpenSSL. This provides a simple 17362 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17363 functionality to handle multipart/signed properly) and a utility 17364 called 'smime' to call all this stuff. This is based on code I 17365 originally wrote for Celo who have kindly allowed it to be 17366 included in OpenSSL. 17367 17368 *Steve Henson* 17369 17370 * Add variants des_set_key_checked and des_set_key_unchecked of 17371 des_set_key (aka des_key_sched). Global variable des_check_key 17372 decides which of these is called by des_set_key; this way 17373 des_check_key behaves as it always did, but applications and 17374 the library itself, which was buggy for des_check_key == 1, 17375 have a cleaner way to pick the version they need. 17376 17377 *Bodo Moeller* 17378 17379 * New function PKCS12_newpass() which changes the password of a 17380 PKCS12 structure. 17381 17382 *Steve Henson* 17383 17384 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17385 dynamic mix. In both cases the ids can be used as an index into the 17386 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17387 functions so they accept a list of the field values and the 17388 application doesn't need to directly manipulate the X509_TRUST 17389 structure. 17390 17391 *Steve Henson* 17392 17393 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17394 need initialising. 17395 17396 *Steve Henson* 17397 17398 * Modify the way the V3 extension code looks up extensions. This now 17399 works in a similar way to the object code: we have some "standard" 17400 extensions in a static table which is searched with OBJ_bsearch() 17401 and the application can add dynamic ones if needed. The file 17402 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17403 updated whenever a new extension is added to the core code and kept 17404 in ext_nid order. There is a simple program 'tabtest.c' which checks 17405 this. New extensions are not added too often so this file can readily 17406 be maintained manually. 17407 17408 There are two big advantages in doing things this way. The extensions 17409 can be looked up immediately and no longer need to be "added" using 17410 X509V3_add_standard_extensions(): this function now does nothing. 17411 Side note: I get *lots* of email saying the extension code doesn't 17412 work because people forget to call this function. 17413 Also no dynamic allocation is done unless new extensions are added: 17414 so if we don't add custom extensions there is no need to call 17415 X509V3_EXT_cleanup(). 17416 17417 *Steve Henson* 17418 17419 * Modify enc utility's salting as follows: make salting the default. Add a 17420 magic header, so unsalted files fail gracefully instead of just decrypting 17421 to garbage. This is because not salting is a big security hole, so people 17422 should be discouraged from doing it. 17423 17424 *Ben Laurie* 17425 17426 * Fixes and enhancements to the 'x509' utility. It allowed a message 17427 digest to be passed on the command line but it only used this 17428 parameter when signing a certificate. Modified so all relevant 17429 operations are affected by the digest parameter including the 17430 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17431 DSA key was used because it didn't fix the digest. 17432 17433 *Steve Henson* 17434 17435 * Initial certificate chain verify code. Currently tests the untrusted 17436 certificates for consistency with the verify purpose (which is set 17437 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17438 17439 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17440 this is because it will reject chains with invalid extensions whereas 17441 every previous version of OpenSSL and SSLeay made no checks at all. 17442 17443 Trust code: checks the root CA for the relevant trust settings. Trust 17444 settings have an initial value consistent with the verify purpose: e.g. 17445 if the verify purpose is for SSL client use it expects the CA to be 17446 trusted for SSL client use. However the default value can be changed to 17447 permit custom trust settings: one example of this would be to only trust 17448 certificates from a specific "secure" set of CAs. 17449 17450 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17451 which should be used for version portability: especially since the 17452 verify structure is likely to change more often now. 17453 17454 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17455 to set them. If not set then assume SSL clients will verify SSL servers 17456 and vice versa. 17457 17458 Two new options to the verify program: -untrusted allows a set of 17459 untrusted certificates to be passed in and -purpose which sets the 17460 intended purpose of the certificate. If a purpose is set then the 17461 new chain verify code is used to check extension consistency. 17462 17463 *Steve Henson* 17464 17465 * Support for the authority information access extension. 17466 17467 *Steve Henson* 17468 17469 * Modify RSA and DSA PEM read routines to transparently handle 17470 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17471 public keys in a format compatible with certificate 17472 SubjectPublicKeyInfo structures. Unfortunately there were already 17473 functions called *_PublicKey_* which used various odd formats so 17474 these are retained for compatibility: however the DSA variants were 17475 never in a public release so they have been deleted. Changed dsa/rsa 17476 utilities to handle the new format: note no releases ever handled public 17477 keys so we should be OK. 17478 17479 The primary motivation for this change is to avoid the same fiasco 17480 that dogs private keys: there are several incompatible private key 17481 formats some of which are standard and some OpenSSL specific and 17482 require various evil hacks to allow partial transparent handling and 17483 even then it doesn't work with DER formats. Given the option anything 17484 other than PKCS#8 should be dumped: but the other formats have to 17485 stay in the name of compatibility. 17486 17487 With public keys and the benefit of hindsight one standard format 17488 is used which works with EVP_PKEY, RSA or DSA structures: though 17489 it clearly returns an error if you try to read the wrong kind of key. 17490 17491 Added a -pubkey option to the 'x509' utility to output the public key. 17492 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17493 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17494 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17495 that do the same as the `EVP_PKEY_assign_*()` except they up the 17496 reference count of the added key (they don't "swallow" the 17497 supplied key). 17498 17499 *Steve Henson* 17500 17501 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17502 CRLs would fail if the file contained no certificates or no CRLs: 17503 added a new function to read in both types and return the number 17504 read: this means that if none are read it will be an error. The 17505 DER versions of the certificate and CRL reader would always fail 17506 because it isn't possible to mix certificates and CRLs in DER format 17507 without choking one or the other routine. Changed this to just read 17508 a certificate: this is the best we can do. Also modified the code 17509 in `apps/verify.c` to take notice of return codes: it was previously 17510 attempting to read in certificates from NULL pointers and ignoring 17511 any errors: this is one reason why the cert and CRL reader seemed 17512 to work. It doesn't check return codes from the default certificate 17513 routines: these may well fail if the certificates aren't installed. 17514 17515 *Steve Henson* 17516 17517 * Code to support otherName option in GeneralName. 17518 17519 *Steve Henson* 17520 17521 * First update to verify code. Change the verify utility 17522 so it warns if it is passed a self signed certificate: 17523 for consistency with the normal behaviour. X509_verify 17524 has been modified to it will now verify a self signed 17525 certificate if *exactly* the same certificate appears 17526 in the store: it was previously impossible to trust a 17527 single self signed certificate. This means that: 17528 openssl verify ss.pem 17529 now gives a warning about a self signed certificate but 17530 openssl verify -CAfile ss.pem ss.pem 17531 is OK. 17532 17533 *Steve Henson* 17534 17535 * For servers, store verify_result in SSL_SESSION data structure 17536 (and add it to external session representation). 17537 This is needed when client certificate verifications fails, 17538 but an application-provided verification callback (set by 17539 SSL_CTX_set_cert_verify_callback) allows accepting the session 17540 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17541 but returns 1): When the session is reused, we have to set 17542 ssl->verify_result to the appropriate error code to avoid 17543 security holes. 17544 17545 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17546 17547 * Fix a bug in the new PKCS#7 code: it didn't consider the 17548 case in PKCS7_dataInit() where the signed PKCS7 structure 17549 didn't contain any existing data because it was being created. 17550 17551 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17552 17553 * Add a salt to the key derivation routines in enc.c. This 17554 forms the first 8 bytes of the encrypted file. Also add a 17555 -S option to allow a salt to be input on the command line. 17556 17557 *Steve Henson* 17558 17559 * New function X509_cmp(). Oddly enough there wasn't a function 17560 to compare two certificates. We do this by working out the SHA1 17561 hash and comparing that. X509_cmp() will be needed by the trust 17562 code. 17563 17564 *Steve Henson* 17565 17566 * SSL_get1_session() is like SSL_get_session(), but increments 17567 the reference count in the SSL_SESSION returned. 17568 17569 *Geoff Thorpe <geoff@eu.c2.net>* 17570 17571 * Fix for 'req': it was adding a null to request attributes. 17572 Also change the X509_LOOKUP and X509_INFO code to handle 17573 certificate auxiliary information. 17574 17575 *Steve Henson* 17576 17577 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17578 the 'enc' command. 17579 17580 *Steve Henson* 17581 17582 * Add the possibility to add extra information to the memory leak 17583 detecting output, to form tracebacks, showing from where each 17584 allocation was originated: CRYPTO_push_info("constant string") adds 17585 the string plus current file name and line number to a per-thread 17586 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17587 is like calling CYRPTO_pop_info() until the stack is empty. 17588 Also updated memory leak detection code to be multi-thread-safe. 17589 17590 *Richard Levitte* 17591 17592 * Add options -text and -noout to pkcs7 utility and delete the 17593 encryption options which never did anything. Update docs. 17594 17595 *Steve Henson* 17596 17597 * Add options to some of the utilities to allow the pass phrase 17598 to be included on either the command line (not recommended on 17599 OSes like Unix) or read from the environment. Update the 17600 manpages and fix a few bugs. 17601 17602 *Steve Henson* 17603 17604 * Add a few manpages for some of the openssl commands. 17605 17606 *Steve Henson* 17607 17608 * Fix the -revoke option in ca. It was freeing up memory twice, 17609 leaking and not finding already revoked certificates. 17610 17611 *Steve Henson* 17612 17613 * Extensive changes to support certificate auxiliary information. 17614 This involves the use of X509_CERT_AUX structure and X509_AUX 17615 functions. An X509_AUX function such as PEM_read_X509_AUX() 17616 can still read in a certificate file in the usual way but it 17617 will also read in any additional "auxiliary information". By 17618 doing things this way a fair degree of compatibility can be 17619 retained: existing certificates can have this information added 17620 using the new 'x509' options. 17621 17622 Current auxiliary information includes an "alias" and some trust 17623 settings. The trust settings will ultimately be used in enhanced 17624 certificate chain verification routines: currently a certificate 17625 can only be trusted if it is self signed and then it is trusted 17626 for all purposes. 17627 17628 *Steve Henson* 17629 17630 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17631 The problem was that one of the replacement routines had not been working 17632 since SSLeay releases. For now the offending routine has been replaced 17633 with non-optimised assembler. Even so, this now gives around 95% 17634 performance improvement for 1024 bit RSA signs. 17635 17636 *Mark Cox* 17637 17638 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17639 handling. Most clients have the effective key size in bits equal to 17640 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17641 A few however don't do this and instead use the size of the decrypted key 17642 to determine the RC2 key length and the AlgorithmIdentifier to determine 17643 the effective key length. In this case the effective key length can still 17644 be 40 bits but the key length can be 168 bits for example. This is fixed 17645 by manually forcing an RC2 key into the EVP_PKEY structure because the 17646 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17647 the key length and effective key length are equal. 17648 17649 *Steve Henson* 17650 17651 * Add a bunch of functions that should simplify the creation of 17652 X509_NAME structures. Now you should be able to do: 17653 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17654 and have it automatically work out the correct field type and fill in 17655 the structures. The more adventurous can try: 17656 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17657 and it will (hopefully) work out the correct multibyte encoding. 17658 17659 *Steve Henson* 17660 17661 * Change the 'req' utility to use the new field handling and multibyte 17662 copy routines. Before the DN field creation was handled in an ad hoc 17663 way in req, ca, and x509 which was rather broken and didn't support 17664 BMPStrings or UTF8Strings. Since some software doesn't implement 17665 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17666 using the dirstring_type option. See the new comment in the default 17667 openssl.cnf for more info. 17668 17669 *Steve Henson* 17670 17671 * Make crypto/rand/md_rand.c more robust: 17672 - Assure unique random numbers after fork(). 17673 - Make sure that concurrent threads access the global counter and 17674 md serializably so that we never lose entropy in them 17675 or use exactly the same state in multiple threads. 17676 Access to the large state is not always serializable because 17677 the additional locking could be a performance killer, and 17678 md should be large enough anyway. 17679 17680 *Bodo Moeller* 17681 17682 * New file `apps/app_rand.c` with commonly needed functionality 17683 for handling the random seed file. 17684 17685 Use the random seed file in some applications that previously did not: 17686 ca, 17687 dsaparam -genkey (which also ignored its '-rand' option), 17688 s_client, 17689 s_server, 17690 x509 (when signing). 17691 Except on systems with /dev/urandom, it is crucial to have a random 17692 seed file at least for key creation, DSA signing, and for DH exchanges; 17693 for RSA signatures we could do without one. 17694 17695 gendh and gendsa (unlike genrsa) used to read only the first byte 17696 of each file listed in the '-rand' option. The function as previously 17697 found in genrsa is now in app_rand.c and is used by all programs 17698 that support '-rand'. 17699 17700 *Bodo Moeller* 17701 17702 * In RAND_write_file, use mode 0600 for creating files; 17703 don't just chmod when it may be too late. 17704 17705 *Bodo Moeller* 17706 17707 * Report an error from X509_STORE_load_locations 17708 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17709 17710 *Bill Perry* 17711 17712 * New function ASN1_mbstring_copy() this copies a string in either 17713 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17714 into an ASN1_STRING type. A mask of permissible types is passed 17715 and it chooses the "minimal" type to use or an error if not type 17716 is suitable. 17717 17718 *Steve Henson* 17719 17720 * Add function equivalents to the various macros in asn1.h. The old 17721 macros are retained with an `M_` prefix. Code inside the library can 17722 use the `M_` macros. External code (including the openssl utility) 17723 should *NOT* in order to be "shared library friendly". 17724 17725 *Steve Henson* 17726 17727 * Add various functions that can check a certificate's extensions 17728 to see if it usable for various purposes such as SSL client, 17729 server or S/MIME and CAs of these types. This is currently 17730 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17731 verification. Also added a -purpose flag to x509 utility to 17732 print out all the purposes. 17733 17734 *Steve Henson* 17735 17736 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17737 functions. 17738 17739 *Steve Henson* 17740 17741 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17742 for, obtain and decode and extension and obtain its critical flag. 17743 This allows all the necessary extension code to be handled in a 17744 single function call. 17745 17746 *Steve Henson* 17747 17748 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17749 platforms. See crypto/rc4/rc4_enc.c for further details. 17750 17751 *Andy Polyakov* 17752 17753 * New -noout option to asn1parse. This causes no output to be produced 17754 its main use is when combined with -strparse and -out to extract data 17755 from a file (which may not be in ASN.1 format). 17756 17757 *Steve Henson* 17758 17759 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17760 when producing the local key id. 17761 17762 *Richard Levitte <levitte@stacken.kth.se>* 17763 17764 * New option -dhparam in s_server. This allows a DH parameter file to be 17765 stated explicitly. If it is not stated then it tries the first server 17766 certificate file. The previous behaviour hard coded the filename 17767 "server.pem". 17768 17769 *Steve Henson* 17770 17771 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17772 a public key to be input or output. For example: 17773 openssl rsa -in key.pem -pubout -out pubkey.pem 17774 Also added necessary DSA public key functions to handle this. 17775 17776 *Steve Henson* 17777 17778 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17779 in the message. This was handled by allowing 17780 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17781 17782 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17783 17784 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17785 to the end of the strings whereas this didn't. This would cause problems 17786 if strings read with d2i_ASN1_bytes() were later modified. 17787 17788 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17789 17790 * Fix for base64 decode bug. When a base64 bio reads only one line of 17791 data and it contains EOF it will end up returning an error. This is 17792 caused by input 46 bytes long. The cause is due to the way base64 17793 BIOs find the start of base64 encoded data. They do this by trying a 17794 trial decode on each line until they find one that works. When they 17795 do a flag is set and it starts again knowing it can pass all the 17796 data directly through the decoder. Unfortunately it doesn't reset 17797 the context it uses. This means that if EOF is reached an attempt 17798 is made to pass two EOFs through the context and this causes the 17799 resulting error. This can also cause other problems as well. As is 17800 usual with these problems it takes *ages* to find and the fix is 17801 trivial: move one line. 17802 17803 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17804 17805 * Ugly workaround to get s_client and s_server working under Windows. The 17806 old code wouldn't work because it needed to select() on sockets and the 17807 tty (for keypresses and to see if data could be written). Win32 only 17808 supports select() on sockets so we select() with a 1s timeout on the 17809 sockets and then see if any characters are waiting to be read, if none 17810 are present then we retry, we also assume we can always write data to 17811 the tty. This isn't nice because the code then blocks until we've 17812 received a complete line of data and it is effectively polling the 17813 keyboard at 1s intervals: however it's quite a bit better than not 17814 working at all :-) A dedicated Windows application might handle this 17815 with an event loop for example. 17816 17817 *Steve Henson* 17818 17819 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17820 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17821 will be called when RSA_sign() and RSA_verify() are used. This is useful 17822 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17823 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17824 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17825 This necessitated the support of an extra signature type NID_md5_sha1 17826 for SSL signatures and modifications to the SSL library to use it instead 17827 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17828 17829 *Steve Henson* 17830 17831 * Add new -verify -CAfile and -CApath options to the crl program, these 17832 will lookup a CRL issuers certificate and verify the signature in a 17833 similar way to the verify program. Tidy up the crl program so it 17834 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17835 less strict. It will now permit CRL extensions even if it is not 17836 a V2 CRL: this will allow it to tolerate some broken CRLs. 17837 17838 *Steve Henson* 17839 17840 * Initialize all non-automatic variables each time one of the openssl 17841 sub-programs is started (this is necessary as they may be started 17842 multiple times from the "OpenSSL>" prompt). 17843 17844 *Lennart Bang, Bodo Moeller* 17845 17846 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17847 removing all other RSA functionality (this is what NO_RSA does). This 17848 is so (for example) those in the US can disable those operations covered 17849 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17850 key generation. 17851 17852 *Steve Henson* 17853 17854 * Non-copying interface to BIO pairs. 17855 (still largely untested) 17856 17857 *Bodo Moeller* 17858 17859 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17860 ASCII string. This was handled independently in various places before. 17861 17862 *Steve Henson* 17863 17864 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17865 UTF8 strings a character at a time. 17866 17867 *Steve Henson* 17868 17869 * Use client_version from client hello to select the protocol 17870 (s23_srvr.c) and for RSA client key exchange verification 17871 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17872 17873 *Bodo Moeller* 17874 17875 * Add various utility functions to handle SPKACs, these were previously 17876 handled by poking round in the structure internals. Added new function 17877 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17878 print, verify and generate SPKACs. Based on an original idea from 17879 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17880 17881 *Steve Henson* 17882 17883 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17884 17885 *Andy Polyakov* 17886 17887 * Allow the config file extension section to be overwritten on the 17888 command line. Based on an original idea from Massimiliano Pala 17889 <madwolf@comune.modena.it>. The new option is called -extensions 17890 and can be applied to ca, req and x509. Also -reqexts to override 17891 the request extensions in req and -crlexts to override the crl extensions 17892 in ca. 17893 17894 *Steve Henson* 17895 17896 * Add new feature to the SPKAC handling in ca. Now you can include 17897 the same field multiple times by preceding it by "XXXX." for example: 17898 1.OU="Unit name 1" 17899 2.OU="Unit name 2" 17900 this is the same syntax as used in the req config file. 17901 17902 *Steve Henson* 17903 17904 * Allow certificate extensions to be added to certificate requests. These 17905 are specified in a 'req_extensions' option of the req section of the 17906 config file. They can be printed out with the -text option to req but 17907 are otherwise ignored at present. 17908 17909 *Steve Henson* 17910 17911 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17912 data read consists of only the final block it would not decrypted because 17913 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17914 A misplaced 'break' also meant the decrypted final block might not be 17915 copied until the next read. 17916 17917 *Steve Henson* 17918 17919 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17920 a few extra parameters to the DH structure: these will be useful if 17921 for example we want the value of 'q' or implement X9.42 DH. 17922 17923 *Steve Henson* 17924 17925 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17926 provides hooks that allow the default DSA functions or functions on a 17927 "per key" basis to be replaced. This allows hardware acceleration and 17928 hardware key storage to be handled without major modification to the 17929 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17930 associated functions. 17931 17932 *Steve Henson* 17933 17934 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17935 as "read only": it can't be written to and the buffer it points to will 17936 not be freed. Reading from a read only BIO is much more efficient than 17937 a normal memory BIO. This was added because there are several times when 17938 an area of memory needs to be read from a BIO. The previous method was 17939 to create a memory BIO and write the data to it, this results in two 17940 copies of the data and an O(n^2) reading algorithm. There is a new 17941 function BIO_new_mem_buf() which creates a read only memory BIO from 17942 an area of memory. Also modified the PKCS#7 routines to use read only 17943 memory BIOs. 17944 17945 *Steve Henson* 17946 17947 * Bugfix: ssl23_get_client_hello did not work properly when called in 17948 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17949 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17950 but a retry condition occurred while trying to read the rest. 17951 17952 *Bodo Moeller* 17953 17954 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17955 NID_pkcs7_encrypted by default: this was wrong since this should almost 17956 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17957 the encrypted data type: this is a more sensible place to put it and it 17958 allows the PKCS#12 code to be tidied up that duplicated this 17959 functionality. 17960 17961 *Steve Henson* 17962 17963 * Changed obj_dat.pl script so it takes its input and output files on 17964 the command line. This should avoid shell escape redirection problems 17965 under Win32. 17966 17967 *Steve Henson* 17968 17969 * Initial support for certificate extension requests, these are included 17970 in things like Xenroll certificate requests. Included functions to allow 17971 extensions to be obtained and added. 17972 17973 *Steve Henson* 17974 17975 * -crlf option to s_client and s_server for sending newlines as 17976 CRLF (as required by many protocols). 17977 17978 *Bodo Moeller* 17979 17980### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 17981 17982 * Install libRSAglue.a when OpenSSL is built with RSAref. 17983 17984 *Ralf S. Engelschall* 17985 17986 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 17987 17988 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 17989 17990 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 17991 program. 17992 17993 *Steve Henson* 17994 17995 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 17996 DH parameters/keys (q is lost during that conversion, but the resulting 17997 DH parameters contain its length). 17998 17999 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 18000 much faster than DH_generate_parameters (which creates parameters 18001 where `p = 2*q + 1`), and also the smaller q makes DH computations 18002 much more efficient (160-bit exponentiation instead of 1024-bit 18003 exponentiation); so this provides a convenient way to support DHE 18004 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 18005 utter importance to use 18006 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 18007 or 18008 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 18009 when such DH parameters are used, because otherwise small subgroup 18010 attacks may become possible! 18011 18012 *Bodo Moeller* 18013 18014 * Avoid memory leak in i2d_DHparams. 18015 18016 *Bodo Moeller* 18017 18018 * Allow the -k option to be used more than once in the enc program: 18019 this allows the same encrypted message to be read by multiple recipients. 18020 18021 *Steve Henson* 18022 18023 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 18024 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 18025 it will always use the numerical form of the OID, even if it has a short 18026 or long name. 18027 18028 *Steve Henson* 18029 18030 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 18031 method only got called if p,q,dmp1,dmq1,iqmp components were present, 18032 otherwise bn_mod_exp was called. In the case of hardware keys for example 18033 no private key components need be present and it might store extra data 18034 in the RSA structure, which cannot be accessed from bn_mod_exp. 18035 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 18036 private key operations. 18037 18038 *Steve Henson* 18039 18040 * Added support for SPARC Linux. 18041 18042 *Andy Polyakov* 18043 18044 * pem_password_cb function type incompatibly changed from 18045 typedef int pem_password_cb(char *buf, int size, int rwflag); 18046 to 18047 ....(char *buf, int size, int rwflag, void *userdata); 18048 so that applications can pass data to their callbacks: 18049 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 18050 additional void * argument, which is just handed through whenever 18051 the password callback is called. 18052 18053 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 18054 18055 New function SSL_CTX_set_default_passwd_cb_userdata. 18056 18057 Compatibility note: As many C implementations push function arguments 18058 onto the stack in reverse order, the new library version is likely to 18059 interoperate with programs that have been compiled with the old 18060 pem_password_cb definition (PEM_whatever takes some data that 18061 happens to be on the stack as its last argument, and the callback 18062 just ignores this garbage); but there is no guarantee whatsoever that 18063 this will work. 18064 18065 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 18066 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 18067 problems not only on Windows, but also on some Unix platforms. 18068 To avoid problematic command lines, these definitions are now in an 18069 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 18070 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 18071 18072 *Bodo Moeller* 18073 18074 * MIPS III/IV assembler module is reimplemented. 18075 18076 *Andy Polyakov* 18077 18078 * More DES library cleanups: remove references to srand/rand and 18079 delete an unused file. 18080 18081 *Ulf Möller* 18082 18083 * Add support for the free Netwide assembler (NASM) under Win32, 18084 since not many people have MASM (ml) and it can be hard to obtain. 18085 This is currently experimental but it seems to work OK and pass all 18086 the tests. Check out INSTALL.W32 for info. 18087 18088 *Steve Henson* 18089 18090 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 18091 without temporary keys kept an extra copy of the server key, 18092 and connections with temporary keys did not free everything in case 18093 of an error. 18094 18095 *Bodo Moeller* 18096 18097 * New function RSA_check_key and new openssl rsa option -check 18098 for verifying the consistency of RSA keys. 18099 18100 *Ulf Moeller, Bodo Moeller* 18101 18102 * Various changes to make Win32 compile work: 18103 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 18104 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 18105 comparison" warnings. 18106 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 18107 18108 *Steve Henson* 18109 18110 * Add a debugging option to PKCS#5 v2 key generation function: when 18111 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 18112 derived keys are printed to stderr. 18113 18114 *Steve Henson* 18115 18116 * Copy the flags in ASN1_STRING_dup(). 18117 18118 *Roman E. Pavlov <pre@mo.msk.ru>* 18119 18120 * The x509 application mishandled signing requests containing DSA 18121 keys when the signing key was also DSA and the parameters didn't match. 18122 18123 It was supposed to omit the parameters when they matched the signing key: 18124 the verifying software was then supposed to automatically use the CA's 18125 parameters if they were absent from the end user certificate. 18126 18127 Omitting parameters is no longer recommended. The test was also 18128 the wrong way round! This was probably due to unusual behaviour in 18129 EVP_cmp_parameters() which returns 1 if the parameters match. 18130 This meant that parameters were omitted when they *didn't* match and 18131 the certificate was useless. Certificates signed with 'ca' didn't have 18132 this bug. 18133 18134 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 18135 18136 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 18137 The interface is as follows: 18138 Applications can use 18139 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 18140 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 18141 "off" is now the default. 18142 The library internally uses 18143 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 18144 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 18145 to disable memory-checking temporarily. 18146 18147 Some inconsistent states that previously were possible (and were 18148 even the default) are now avoided. 18149 18150 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 18151 with each memory chunk allocated; this is occasionally more helpful 18152 than just having a counter. 18153 18154 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 18155 18156 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 18157 extensions. 18158 18159 *Bodo Moeller* 18160 18161 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 18162 which largely parallels "options", but is for changing API behaviour, 18163 whereas "options" are about protocol behaviour. 18164 Initial "mode" flags are: 18165 18166 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 18167 a single record has been written. 18168 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 18169 retries use the same buffer location. 18170 (But all of the contents must be 18171 copied!) 18172 18173 *Bodo Moeller* 18174 18175 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 18176 worked. 18177 18178 * Fix problems with no-hmac etc. 18179 18180 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 18181 18182 * New functions RSA_get_default_method(), RSA_set_method() and 18183 RSA_get_method(). These allows replacement of RSA_METHODs without having 18184 to mess around with the internals of an RSA structure. 18185 18186 *Steve Henson* 18187 18188 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 18189 Also really enable memory leak checks in openssl.c and in some 18190 test programs. 18191 18192 *Chad C. Mulligan, Bodo Moeller* 18193 18194 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 18195 up the length of negative integers. This has now been simplified to just 18196 store the length when it is first determined and use it later, rather 18197 than trying to keep track of where data is copied and updating it to 18198 point to the end. 18199 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 18200 18201 * Add a new function PKCS7_signatureVerify. This allows the verification 18202 of a PKCS#7 signature but with the signing certificate passed to the 18203 function itself. This contrasts with PKCS7_dataVerify which assumes the 18204 certificate is present in the PKCS#7 structure. This isn't always the 18205 case: certificates can be omitted from a PKCS#7 structure and be 18206 distributed by "out of band" means (such as a certificate database). 18207 18208 *Steve Henson* 18209 18210 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 18211 function prototypes in pem.h, also change util/mkdef.pl to add the 18212 necessary function names. 18213 18214 *Steve Henson* 18215 18216 * mk1mf.pl (used by Windows builds) did not properly read the 18217 options set by Configure in the top level Makefile, and Configure 18218 was not even able to write more than one option correctly. 18219 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 18220 18221 *Bodo Moeller* 18222 18223 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 18224 file to be loaded from a BIO or FILE pointer. The BIO version will 18225 for example allow memory BIOs to contain config info. 18226 18227 *Steve Henson* 18228 18229 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 18230 Whoever hopes to achieve shared-library compatibility across versions 18231 must use this, not the compile-time macro. 18232 (Exercise 0.9.4: Which is the minimum library version required by 18233 such programs?) 18234 Note: All this applies only to multi-threaded programs, others don't 18235 need locks. 18236 18237 *Bodo Moeller* 18238 18239 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 18240 through a BIO pair triggered the default case, i.e. 18241 SSLerr(...,SSL_R_UNKNOWN_STATE). 18242 18243 *Bodo Moeller* 18244 18245 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 18246 can use the SSL library even if none of the specific BIOs is 18247 appropriate. 18248 18249 *Bodo Moeller* 18250 18251 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 18252 for the encoded length. 18253 18254 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 18255 18256 * Add initial documentation of the X509V3 functions. 18257 18258 *Steve Henson* 18259 18260 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 18261 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 18262 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 18263 secure PKCS#8 private key format with a high iteration count. 18264 18265 *Steve Henson* 18266 18267 * Fix determination of Perl interpreter: A perl or perl5 18268 *directory* in $PATH was also accepted as the interpreter. 18269 18270 *Ralf S. Engelschall* 18271 18272 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 18273 wrong with it but it was very old and did things like calling 18274 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 18275 unusual formatting. 18276 18277 *Steve Henson* 18278 18279 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 18280 to use the new extension code. 18281 18282 *Steve Henson* 18283 18284 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 18285 with macros. This should make it easier to change their form, add extra 18286 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 18287 constant. 18288 18289 *Steve Henson* 18290 18291 * Add to configuration table a new entry that can specify an alternative 18292 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 18293 according to Mark Crispin <MRC@Panda.COM>. 18294 18295 *Bodo Moeller* 18296 18297 * DES CBC did not update the IV. Weird. 18298 18299 *Ben Laurie* 18300lse 18301 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 18302 Changing the behaviour of the former might break existing programs -- 18303 where IV updating is needed, des_ncbc_encrypt can be used. 18304ndif 18305 18306 * When bntest is run from "make test" it drives bc to check its 18307 calculations, as well as internally checking them. If an internal check 18308 fails, it needs to cause bc to give a non-zero result or make test carries 18309 on without noticing the failure. Fixed. 18310 18311 *Ben Laurie* 18312 18313 * DES library cleanups. 18314 18315 *Ulf Möller* 18316 18317 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 18318 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 18319 ciphers. NOTE: although the key derivation function has been verified 18320 against some published test vectors it has not been extensively tested 18321 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 18322 of v2.0. 18323 18324 *Steve Henson* 18325 18326 * Instead of "mkdir -p", which is not fully portable, use new 18327 Perl script "util/mkdir-p.pl". 18328 18329 *Bodo Moeller* 18330 18331 * Rewrite the way password based encryption (PBE) is handled. It used to 18332 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 18333 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 18334 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 18335 the 'parameter' field of the AlgorithmIdentifier is passed to the 18336 underlying key generation function so it must do its own ASN1 parsing. 18337 This has also changed the EVP_PBE_CipherInit() function which now has a 18338 'parameter' argument instead of literal salt and iteration count values 18339 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 18340 18341 *Steve Henson* 18342 18343 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18344 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18345 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18346 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18347 value was just used as a "magic string" and not used directly its 18348 value doesn't matter. 18349 18350 *Steve Henson* 18351 18352 * Introduce some semblance of const correctness to BN. Shame C doesn't 18353 support mutable. 18354 18355 *Ben Laurie* 18356 18357 * "linux-sparc64" configuration (ultrapenguin). 18358 18359 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18360 "linux-sparc" configuration. 18361 18362 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18363 18364 * config now generates no-xxx options for missing ciphers. 18365 18366 *Ulf Möller* 18367 18368 * Support the EBCDIC character set (work in progress). 18369 File ebcdic.c not yet included because it has a different license. 18370 18371 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18372 18373 * Support BS2000/OSD-POSIX. 18374 18375 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18376 18377 * Make callbacks for key generation use `void *` instead of `char *`. 18378 18379 *Ben Laurie* 18380 18381 * Make S/MIME samples compile (not yet tested). 18382 18383 *Ben Laurie* 18384 18385 * Additional typesafe stacks. 18386 18387 *Ben Laurie* 18388 18389 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18390 18391 *Bodo Moeller* 18392 18393### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18394 18395 * New configuration variant "sco5-gcc". 18396 18397 * Updated some demos. 18398 18399 *Sean O Riordain, Wade Scholine* 18400 18401 * Add missing BIO_free at exit of pkcs12 application. 18402 18403 *Wu Zhigang* 18404 18405 * Fix memory leak in conf.c. 18406 18407 *Steve Henson* 18408 18409 * Updates for Win32 to assembler version of MD5. 18410 18411 *Steve Henson* 18412 18413 * Set #! path to perl in `apps/der_chop` to where we found it 18414 instead of using a fixed path. 18415 18416 *Bodo Moeller* 18417 18418 * SHA library changes for irix64-mips4-cc. 18419 18420 *Andy Polyakov* 18421 18422 * Improvements for VMS support. 18423 18424 *Richard Levitte* 18425 18426### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18427 18428 * Bignum library bug fix. IRIX 6 passes "make test" now! 18429 This also avoids the problems with SC4.2 and unpatched SC5. 18430 18431 *Andy Polyakov <appro@fy.chalmers.se>* 18432 18433 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18434 These are required because of the typesafe stack would otherwise break 18435 existing code. If old code used a structure member which used to be STACK 18436 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18437 sk_num or sk_value it would produce an error because the num, data members 18438 are not present in STACK_OF. Now it just produces a warning. sk_set 18439 replaces the old method of assigning a value to sk_value 18440 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18441 that does this will no longer work (and should use sk_set instead) but 18442 this could be regarded as a "questionable" behaviour anyway. 18443 18444 *Steve Henson* 18445 18446 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18447 correctly handle encrypted S/MIME data. 18448 18449 *Steve Henson* 18450 18451 * Change type of various DES function arguments from des_cblock 18452 (which means, in function argument declarations, pointer to char) 18453 to des_cblock * (meaning pointer to array with 8 char elements), 18454 which allows the compiler to do more typechecking; it was like 18455 that back in SSLeay, but with lots of ugly casts. 18456 18457 Introduce new type const_des_cblock. 18458 18459 *Bodo Moeller* 18460 18461 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18462 problems: find RecipientInfo structure that matches recipient certificate 18463 and initialise the ASN1 structures properly based on passed cipher. 18464 18465 *Steve Henson* 18466 18467 * Belatedly make the BN tests actually check the results. 18468 18469 *Ben Laurie* 18470 18471 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18472 to and from BNs: it was completely broken. New compilation option 18473 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18474 key elements as negative integers. 18475 18476 *Steve Henson* 18477 18478 * Reorganize and speed up MD5. 18479 18480 *Andy Polyakov <appro@fy.chalmers.se>* 18481 18482 * VMS support. 18483 18484 *Richard Levitte <richard@levitte.org>* 18485 18486 * New option -out to asn1parse to allow the parsed structure to be 18487 output to a file. This is most useful when combined with the -strparse 18488 option to examine the output of things like OCTET STRINGS. 18489 18490 *Steve Henson* 18491 18492 * Make SSL library a little more fool-proof by not requiring any longer 18493 that `SSL_set_{accept,connect}_state` be called before 18494 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18495 in many applications because usually everything *appeared* to work as 18496 intended anyway -- now it really works as intended). 18497 18498 *Bodo Moeller* 18499 18500 * Move openssl.cnf out of lib/. 18501 18502 *Ulf Möller* 18503 18504 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18505 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18506 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18507 18508 *Ralf S. Engelschall* 18509 18510 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18511 handle PKCS#7 enveloped data properly. 18512 18513 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18514 18515 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18516 copying pointers. The cert_st handling is changed by this in 18517 various ways (and thus what used to be known as ctx->default_cert 18518 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18519 any longer when s->cert does not give us what we need). 18520 ssl_cert_instantiate becomes obsolete by this change. 18521 As soon as we've got the new code right (possibly it already is?), 18522 we have solved a couple of bugs of the earlier code where s->cert 18523 was used as if it could not have been shared with other SSL structures. 18524 18525 Note that using the SSL API in certain dirty ways now will result 18526 in different behaviour than observed with earlier library versions: 18527 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18528 does not influence s as it used to. 18529 18530 In order to clean up things more thoroughly, inside SSL_SESSION 18531 we don't use CERT any longer, but a new structure SESS_CERT 18532 that holds per-session data (if available); currently, this is 18533 the peer's certificate chain and, for clients, the server's certificate 18534 and temporary key. CERT holds only those values that can have 18535 meaningful defaults in an SSL_CTX. 18536 18537 *Bodo Moeller* 18538 18539 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18540 from the internal representation. Various PKCS#7 fixes: remove some 18541 evil casts and set the enc_dig_alg field properly based on the signing 18542 key type. 18543 18544 *Steve Henson* 18545 18546 * Allow PKCS#12 password to be set from the command line or the 18547 environment. Let 'ca' get its config file name from the environment 18548 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18549 and 'x509'). 18550 18551 *Steve Henson* 18552 18553 * Allow certificate policies extension to use an IA5STRING for the 18554 organization field. This is contrary to the PKIX definition but 18555 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18556 extension option. 18557 18558 *Steve Henson* 18559 18560 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18561 without disallowing inline assembler and the like for non-pedantic builds. 18562 18563 *Ben Laurie* 18564 18565 * Support Borland C++ builder. 18566 18567 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18568 18569 * Support Mingw32. 18570 18571 *Ulf Möller* 18572 18573 * SHA-1 cleanups and performance enhancements. 18574 18575 *Andy Polyakov <appro@fy.chalmers.se>* 18576 18577 * Sparc v8plus assembler for the bignum library. 18578 18579 *Andy Polyakov <appro@fy.chalmers.se>* 18580 18581 * Accept any -xxx and +xxx compiler options in Configure. 18582 18583 *Ulf Möller* 18584 18585 * Update HPUX configuration. 18586 18587 *Anonymous* 18588 18589 * Add missing `sk_<type>_unshift()` function to safestack.h 18590 18591 *Ralf S. Engelschall* 18592 18593 * New function SSL_CTX_use_certificate_chain_file that sets the 18594 "extra_cert"s in addition to the certificate. (This makes sense 18595 only for "PEM" format files, as chains as a whole are not 18596 DER-encoded.) 18597 18598 *Bodo Moeller* 18599 18600 * Support verify_depth from the SSL API. 18601 x509_vfy.c had what can be considered an off-by-one-error: 18602 Its depth (which was not part of the external interface) 18603 was actually counting the number of certificates in a chain; 18604 now it really counts the depth. 18605 18606 *Bodo Moeller* 18607 18608 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18609 instead of X509err, which often resulted in confusing error 18610 messages since the error codes are not globally unique 18611 (e.g. an alleged error in ssl3_accept when a certificate 18612 didn't match the private key). 18613 18614 * New function SSL_CTX_set_session_id_context that allows to set a default 18615 value (so that you don't need SSL_set_session_id_context for each 18616 connection using the SSL_CTX). 18617 18618 *Bodo Moeller* 18619 18620 * OAEP decoding bug fix. 18621 18622 *Ulf Möller* 18623 18624 * Support INSTALL_PREFIX for package builders, as proposed by 18625 David Harris. 18626 18627 *Bodo Moeller* 18628 18629 * New Configure options "threads" and "no-threads". For systems 18630 where the proper compiler options are known (currently Solaris 18631 and Linux), "threads" is the default. 18632 18633 *Bodo Moeller* 18634 18635 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18636 18637 *Bodo Moeller* 18638 18639 * Install various scripts to $(OPENSSLDIR)/misc, not to 18640 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18641 such as /usr/local/bin. 18642 18643 *Bodo Moeller* 18644 18645 * "make linux-shared" to build shared libraries. 18646 18647 *Niels Poppe <niels@netbox.org>* 18648 18649 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18650 18651 *Ulf Möller* 18652 18653 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18654 extension adding in x509 utility. 18655 18656 *Steve Henson* 18657 18658 * Remove NOPROTO sections and error code comments. 18659 18660 *Ulf Möller* 18661 18662 * Partial rewrite of the DEF file generator to now parse the ANSI 18663 prototypes. 18664 18665 *Steve Henson* 18666 18667 * New Configure options --prefix=DIR and --openssldir=DIR. 18668 18669 *Ulf Möller* 18670 18671 * Complete rewrite of the error code script(s). It is all now handled 18672 by one script at the top level which handles error code gathering, 18673 header rewriting and C source file generation. It should be much better 18674 than the old method: it now uses a modified version of Ulf's parser to 18675 read the ANSI prototypes in all header files (thus the old K&R definitions 18676 aren't needed for error creation any more) and do a better job of 18677 translating function codes into names. The old 'ASN1 error code embedded 18678 in a comment' is no longer necessary and it doesn't use .err files which 18679 have now been deleted. Also the error code call doesn't have to appear all 18680 on one line (which resulted in some large lines...). 18681 18682 *Steve Henson* 18683 18684 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18685 18686 *Bodo Moeller* 18687 18688 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18689 0 (which usually indicates a closed connection), but continue reading. 18690 18691 *Bodo Moeller* 18692 18693 * Fix some race conditions. 18694 18695 *Bodo Moeller* 18696 18697 * Add support for CRL distribution points extension. Add Certificate 18698 Policies and CRL distribution points documentation. 18699 18700 *Steve Henson* 18701 18702 * Move the autogenerated header file parts to crypto/opensslconf.h. 18703 18704 *Ulf Möller* 18705 18706 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18707 8 of keying material. Merlin has also confirmed interop with this fix 18708 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18709 18710 *Merlin Hughes <merlin@baltimore.ie>* 18711 18712 * Fix lots of warnings. 18713 18714 *Richard Levitte <levitte@stacken.kth.se>* 18715 18716 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18717 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18718 18719 *Richard Levitte <levitte@stacken.kth.se>* 18720 18721 * Fix problems with sizeof(long) == 8. 18722 18723 *Andy Polyakov <appro@fy.chalmers.se>* 18724 18725 * Change functions to ANSI C. 18726 18727 *Ulf Möller* 18728 18729 * Fix typos in error codes. 18730 18731 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18732 18733 * Remove defunct assembler files from Configure. 18734 18735 *Ulf Möller* 18736 18737 * SPARC v8 assembler BIGNUM implementation. 18738 18739 *Andy Polyakov <appro@fy.chalmers.se>* 18740 18741 * Support for Certificate Policies extension: both print and set. 18742 Various additions to support the r2i method this uses. 18743 18744 *Steve Henson* 18745 18746 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18747 return a const string when you are expecting an allocated buffer. 18748 18749 *Ben Laurie* 18750 18751 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18752 types DirectoryString and DisplayText. 18753 18754 *Steve Henson* 18755 18756 * Add code to allow r2i extensions to access the configuration database, 18757 add an LHASH database driver and add several ctx helper functions. 18758 18759 *Steve Henson* 18760 18761 * Fix an evil bug in bn_expand2() which caused various BN functions to 18762 fail when they extended the size of a BIGNUM. 18763 18764 *Steve Henson* 18765 18766 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18767 support typesafe stack. 18768 18769 *Steve Henson* 18770 18771 * Fix typo in SSL_[gs]et_options(). 18772 18773 *Nils Frostberg <nils@medcom.se>* 18774 18775 * Delete various functions and files that belonged to the (now obsolete) 18776 old X509V3 handling code. 18777 18778 *Steve Henson* 18779 18780 * New Configure option "rsaref". 18781 18782 *Ulf Möller* 18783 18784 * Don't auto-generate pem.h. 18785 18786 *Bodo Moeller* 18787 18788 * Introduce type-safe ASN.1 SETs. 18789 18790 *Ben Laurie* 18791 18792 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18793 18794 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18795 18796 * Introduce type-safe STACKs. This will almost certainly break lots of code 18797 that links with OpenSSL (well at least cause lots of warnings), but fear 18798 not: the conversion is trivial, and it eliminates loads of evil casts. A 18799 few STACKed things have been converted already. Feel free to convert more. 18800 In the fullness of time, I'll do away with the STACK type altogether. 18801 18802 *Ben Laurie* 18803 18804 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18805 specified in `<certfile>` by updating the entry in the index.txt file. 18806 This way one no longer has to edit the index.txt file manually for 18807 revoking a certificate. The -revoke option does the gory details now. 18808 18809 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18810 18811 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18812 `-text` option at all and this way the `-noout -text` combination was 18813 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18814 18815 *Ralf S. Engelschall* 18816 18817 * Make sure a corresponding plain text error message exists for the 18818 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18819 verify callback function determined that a certificate was revoked. 18820 18821 *Ralf S. Engelschall* 18822 18823 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18824 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18825 all available ciphers including rc5, which was forgotten until now. 18826 In order to let the testing shell script know which algorithms 18827 are available, a new (up to now undocumented) command 18828 `openssl list-cipher-commands` is used. 18829 18830 *Bodo Moeller* 18831 18832 * Bugfix: s_client occasionally would sleep in select() when 18833 it should have checked SSL_pending() first. 18834 18835 *Bodo Moeller* 18836 18837 * New functions DSA_do_sign and DSA_do_verify to provide access to 18838 the raw DSA values prior to ASN.1 encoding. 18839 18840 *Ulf Möller* 18841 18842 * Tweaks to Configure 18843 18844 *Niels Poppe <niels@netbox.org>* 18845 18846 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18847 yet... 18848 18849 *Steve Henson* 18850 18851 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18852 18853 *Ulf Möller* 18854 18855 * New config option to avoid instructions that are illegal on the 80386. 18856 The default code is faster, but requires at least a 486. 18857 18858 *Ulf Möller* 18859 18860 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18861 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18862 same as SSL2_VERSION anyway. 18863 18864 *Bodo Moeller* 18865 18866 * New "-showcerts" option for s_client. 18867 18868 *Bodo Moeller* 18869 18870 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18871 application. Various cleanups and fixes. 18872 18873 *Steve Henson* 18874 18875 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18876 modify error routines to work internally. Add error codes and PBE init 18877 to library startup routines. 18878 18879 *Steve Henson* 18880 18881 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18882 packing functions to asn1 and evp. Changed function names and error 18883 codes along the way. 18884 18885 *Steve Henson* 18886 18887 * PKCS12 integration: and so it begins... First of several patches to 18888 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18889 objects to objects.h 18890 18891 *Steve Henson* 18892 18893 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18894 and display support for Thawte strong extranet extension. 18895 18896 *Steve Henson* 18897 18898 * Add LinuxPPC support. 18899 18900 *Jeff Dubrule <igor@pobox.org>* 18901 18902 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18903 bn_div_words in alpha.s. 18904 18905 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18906 18907 * Make sure the RSA OAEP test is skipped under -DRSAref because 18908 OAEP isn't supported when OpenSSL is built with RSAref. 18909 18910 *Ulf Moeller <ulf@fitug.de>* 18911 18912 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18913 so they no longer are missing under -DNOPROTO. 18914 18915 *Soren S. Jorvang <soren@t.dk>* 18916 18917### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18918 18919 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18920 doesn't work when the session is reused. Coming soon! 18921 18922 *Ben Laurie* 18923 18924 * Fix a security hole, that allows sessions to be reused in the wrong 18925 context thus bypassing client cert protection! All software that uses 18926 client certs and session caches in multiple contexts NEEDS PATCHING to 18927 allow session reuse! A fuller solution is in the works. 18928 18929 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18930 18931 * Some more source tree cleanups (removed obsolete files 18932 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18933 permission on "config" script to be executable) and a fix for the INSTALL 18934 document. 18935 18936 *Ulf Moeller <ulf@fitug.de>* 18937 18938 * Remove some legacy and erroneous uses of malloc, free instead of 18939 Malloc, Free. 18940 18941 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18942 18943 * Make rsa_oaep_test return non-zero on error. 18944 18945 *Ulf Moeller <ulf@fitug.de>* 18946 18947 * Add support for native Solaris shared libraries. Configure 18948 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18949 if someone would make that last step automatic. 18950 18951 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18952 18953 * ctx_size was not built with the right compiler during "make links". Fixed. 18954 18955 *Ben Laurie* 18956 18957 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18958 except NULL ciphers". This means the default cipher list will no longer 18959 enable NULL ciphers. They need to be specifically enabled e.g. with 18960 the string "DEFAULT:eNULL". 18961 18962 *Steve Henson* 18963 18964 * Fix to RSA private encryption routines: if p < q then it would 18965 occasionally produce an invalid result. This will only happen with 18966 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18967 18968 *Steve Henson* 18969 18970 * Be less restrictive and allow also `perl util/perlpath.pl 18971 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 18972 because this way one can also use an interpreter named `perl5` (which is 18973 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 18974 installed as `perl`). 18975 18976 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18977 18978 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 18979 18980 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18981 18982 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 18983 advapi32.lib to Win32 build and change the pem test comparison 18984 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 18985 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 18986 and crypto/des/ede_cbcm_enc.c. 18987 18988 *Steve Henson* 18989 18990 * DES quad checksum was broken on big-endian architectures. Fixed. 18991 18992 *Ben Laurie* 18993 18994 * Comment out two functions in bio.h that aren't implemented. Fix up the 18995 Win32 test batch file so it (might) work again. The Win32 test batch file 18996 is horrible: I feel ill.... 18997 18998 *Steve Henson* 18999 19000 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 19001 in e_os.h. Audit of header files to check ANSI and non ANSI 19002 sections: 10 functions were absent from non ANSI section and not exported 19003 from Windows DLLs. Fixed up libeay.num for new functions. 19004 19005 *Steve Henson* 19006 19007 * Make `openssl version` output lines consistent. 19008 19009 *Ralf S. Engelschall* 19010 19011 * Fix Win32 symbol export lists for BIO functions: Added 19012 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 19013 to ms/libeay{16,32}.def. 19014 19015 *Ralf S. Engelschall* 19016 19017 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 19018 fine under Unix and passes some trivial tests I've now added. But the 19019 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 19020 added to make sure no one expects that this stuff really works in the 19021 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 19022 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 19023 openssl_bio.xs. 19024 19025 *Ralf S. Engelschall* 19026 19027 * Fix the generation of two part addresses in perl. 19028 19029 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 19030 19031 * Add config entry for Linux on MIPS. 19032 19033 *John Tobey <jtobey@channel1.com>* 19034 19035 * Make links whenever Configure is run, unless we are on Windoze. 19036 19037 *Ben Laurie* 19038 19039 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 19040 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 19041 in CRLs. 19042 19043 *Steve Henson* 19044 19045 * Add a useful kludge to allow package maintainers to specify compiler and 19046 other platforms details on the command line without having to patch the 19047 Configure script every time: One now can use 19048 `perl Configure <id>:<details>`, 19049 i.e. platform ids are allowed to have details appended 19050 to them (separated by colons). This is treated as there would be a static 19051 pre-configured entry in Configure's %table under key `<id>` with value 19052 `<details>` and `perl Configure <id>` is called. So, when you want to 19053 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 19054 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 19055 now, which overrides the FreeBSD-elf entry on-the-fly. 19056 19057 *Ralf S. Engelschall* 19058 19059 * Disable new TLS1 ciphersuites by default: they aren't official yet. 19060 19061 *Ben Laurie* 19062 19063 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 19064 on the `perl Configure ...` command line. This way one can compile 19065 OpenSSL libraries with Position Independent Code (PIC) which is needed 19066 for linking it into DSOs. 19067 19068 *Ralf S. Engelschall* 19069 19070 * Remarkably, export ciphers were totally broken and no-one had noticed! 19071 Fixed. 19072 19073 *Ben Laurie* 19074 19075 * Cleaned up the LICENSE document: The official contact for any license 19076 questions now is the OpenSSL core team under openssl-core@openssl.org. 19077 And add a paragraph about the dual-license situation to make sure people 19078 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 19079 to the OpenSSL toolkit. 19080 19081 *Ralf S. Engelschall* 19082 19083 * General source tree makefile cleanups: Made `making xxx in yyy...` 19084 display consistent in the source tree and replaced `/bin/rm` by `rm`. 19085 Additionally cleaned up the `make links` target: Remove unnecessary 19086 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 19087 to speed processing and no longer clutter the display with confusing 19088 stuff. Instead only the actually done links are displayed. 19089 19090 *Ralf S. Engelschall* 19091 19092 * Permit null encryption ciphersuites, used for authentication only. It used 19093 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 19094 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 19095 encryption. 19096 19097 *Ben Laurie* 19098 19099 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 19100 signed attributes when verifying signatures (this would break them), 19101 the detached data encoding was wrong and public keys obtained using 19102 X509_get_pubkey() weren't freed. 19103 19104 *Steve Henson* 19105 19106 * Add text documentation for the BUFFER functions. Also added a work around 19107 to a Win95 console bug. This was triggered by the password read stuff: the 19108 last character typed gets carried over to the next fread(). If you were 19109 generating a new cert request using 'req' for example then the last 19110 character of the passphrase would be CR which would then enter the first 19111 field as blank. 19112 19113 *Steve Henson* 19114 19115 * Added the new 'Includes OpenSSL Cryptography Software' button as 19116 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 19117 button and can be used by applications based on OpenSSL to show the 19118 relationship to the OpenSSL project. 19119 19120 *Ralf S. Engelschall* 19121 19122 * Remove confusing variables in function signatures in files 19123 ssl/ssl_lib.c and ssl/ssl.h. 19124 19125 *Lennart Bong <lob@kulthea.stacken.kth.se>* 19126 19127 * Don't install bss_file.c under PREFIX/include/ 19128 19129 *Lennart Bong <lob@kulthea.stacken.kth.se>* 19130 19131 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 19132 functions that return function pointers and has support for NT specific 19133 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 19134 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 19135 unsigned to signed types: this was killing the Win32 compile. 19136 19137 *Steve Henson* 19138 19139 * Add new certificate file to stack functions, 19140 SSL_add_dir_cert_subjects_to_stack() and 19141 SSL_add_file_cert_subjects_to_stack(). These largely supplant 19142 SSL_load_client_CA_file(), and can be used to add multiple certs easily 19143 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 19144 This means that Apache-SSL and similar packages don't have to mess around 19145 to add as many CAs as they want to the preferred list. 19146 19147 *Ben Laurie* 19148 19149 * Experiment with doxygen documentation. Currently only partially applied to 19150 ssl/ssl_lib.c. 19151 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 19152 openssl.doxy as the configuration file. 19153 19154 *Ben Laurie* 19155 19156 * Get rid of remaining C++-style comments which strict C compilers hate. 19157 19158 *Ralf S. Engelschall, pointed out by Carlos Amengual* 19159 19160 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 19161 compiled in by default: it has problems with large keys. 19162 19163 *Steve Henson* 19164 19165 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 19166 DH private keys and/or callback functions which directly correspond to 19167 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 19168 is needed for applications which have to configure certificates on a 19169 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 19170 (e.g. s_server). 19171 For the RSA certificate situation is makes no difference, but 19172 for the DSA certificate situation this fixes the "no shared cipher" 19173 problem where the OpenSSL cipher selection procedure failed because the 19174 temporary keys were not overtaken from the context and the API provided 19175 no way to reconfigure them. 19176 The new functions now let applications reconfigure the stuff and they 19177 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 19178 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 19179 non-public-API function ssl_cert_instantiate() is used as a helper 19180 function and also to reduce code redundancy inside ssl_rsa.c. 19181 19182 *Ralf S. Engelschall* 19183 19184 * Move s_server -dcert and -dkey options out of the undocumented feature 19185 area because they are useful for the DSA situation and should be 19186 recognized by the users. 19187 19188 *Ralf S. Engelschall* 19189 19190 * Fix the cipher decision scheme for export ciphers: the export bits are 19191 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 19192 SSL_EXP_MASK. So, the original variable has to be used instead of the 19193 already masked variable. 19194 19195 *Richard Levitte <levitte@stacken.kth.se>* 19196 19197 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 19198 19199 *Richard Levitte <levitte@stacken.kth.se>* 19200 19201 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 19202 from `int` to `unsigned int` because it is a length and initialized by 19203 EVP_DigestFinal() which expects an `unsigned int *`. 19204 19205 *Richard Levitte <levitte@stacken.kth.se>* 19206 19207 * Don't hard-code path to Perl interpreter on shebang line of Configure 19208 script. Instead use the usual Shell->Perl transition trick. 19209 19210 *Ralf S. Engelschall* 19211 19212 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 19213 (in addition to RSA certificates) to match the behaviour of `openssl dsa 19214 -noout -modulus` as it's already the case for `openssl rsa -noout 19215 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 19216 currently the public key is printed (a decision which was already done by 19217 `openssl dsa -modulus` in the past) which serves a similar purpose. 19218 Additionally the NO_RSA no longer completely removes the whole -modulus 19219 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 19220 now, too. 19221 19222 *Ralf S. Engelschall* 19223 19224 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 19225 BIO. See the source (crypto/evp/bio_ok.c) for more info. 19226 19227 *Arne Ansper <arne@ats.cyber.ee>* 19228 19229 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 19230 to be added. Now both 'req' and 'ca' can use new objects defined in the 19231 config file. 19232 19233 *Steve Henson* 19234 19235 * Add cool BIO that does syslog (or event log on NT). 19236 19237 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 19238 19239 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 19240 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 19241 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 19242 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 19243 19244 *Ben Laurie* 19245 19246 * Add preliminary config info for new extension code. 19247 19248 *Steve Henson* 19249 19250 * Make RSA_NO_PADDING really use no padding. 19251 19252 *Ulf Moeller <ulf@fitug.de>* 19253 19254 * Generate errors when private/public key check is done. 19255 19256 *Ben Laurie* 19257 19258 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 19259 for some CRL extensions and new objects added. 19260 19261 *Steve Henson* 19262 19263 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 19264 key usage extension and fuller support for authority key id. 19265 19266 *Steve Henson* 19267 19268 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 19269 padding method for RSA, which is recommended for new applications in PKCS 19270 #1 v2.0 (RFC 2437, October 1998). 19271 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 19272 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 19273 against Bleichbacher's attack on RSA. 19274 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 19275 Ben Laurie* 19276 19277 * Updates to the new SSL compression code 19278 19279 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19280 19281 * Fix so that the version number in the master secret, when passed 19282 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 19283 (because the server will not accept higher), that the version number 19284 is 0x03,0x01, not 0x03,0x00 19285 19286 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19287 19288 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 19289 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 19290 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 19291 19292 *Steve Henson* 19293 19294 * Support for RAW extensions where an arbitrary extension can be 19295 created by including its DER encoding. See `apps/openssl.cnf` for 19296 an example. 19297 19298 *Steve Henson* 19299 19300 * Make sure latest Perl versions don't interpret some generated C array 19301 code as Perl array code in the crypto/err/err_genc.pl script. 19302 19303 *Lars Weber <3weber@informatik.uni-hamburg.de>* 19304 19305 * Modify ms/do_ms.bat to not generate assembly language makefiles since 19306 not many people have the assembler. Various Win32 compilation fixes and 19307 update to the INSTALL.W32 file with (hopefully) more accurate Win32 19308 build instructions. 19309 19310 *Steve Henson* 19311 19312 * Modify configure script 'Configure' to automatically create crypto/date.h 19313 file under Win32 and also build pem.h from pem.org. New script 19314 util/mkfiles.pl to create the MINFO file on environments that can't do a 19315 'make files': perl util/mkfiles.pl >MINFO should work. 19316 19317 *Steve Henson* 19318 19319 * Major rework of DES function declarations, in the pursuit of correctness 19320 and purity. As a result, many evil casts evaporated, and some weirdness, 19321 too. You may find this causes warnings in your code. Zapping your evil 19322 casts will probably fix them. Mostly. 19323 19324 *Ben Laurie* 19325 19326 * Fix for a typo in asn1.h. Bug fix to object creation script 19327 obj_dat.pl. It considered a zero in an object definition to mean 19328 "end of object": none of the objects in objects.h have any zeros 19329 so it wasn't spotted. 19330 19331 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 19332 19333 * Add support for Triple DES Cipher Block Chaining with Output Feedback 19334 Masking (CBCM). In the absence of test vectors, the best I have been able 19335 to do is check that the decrypt undoes the encrypt, so far. Send me test 19336 vectors if you have them. 19337 19338 *Ben Laurie* 19339 19340 * Correct calculation of key length for export ciphers (too much space was 19341 allocated for null ciphers). This has not been tested! 19342 19343 *Ben Laurie* 19344 19345 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19346 message is now correct (it understands "crypto" and "ssl" on its 19347 command line). There is also now an "update" option. This will update 19348 the util/ssleay.num and util/libeay.num files with any new functions. 19349 If you do a: 19350 perl util/mkdef.pl crypto ssl update 19351 it will update them. 19352 19353 *Steve Henson* 19354 19355 * Overhauled the Perl interface: 19356 - ported BN stuff to OpenSSL's different BN library 19357 - made the perl/ source tree CVS-aware 19358 - renamed the package from SSLeay to OpenSSL (the files still contain 19359 their history because I've copied them in the repository) 19360 - removed obsolete files (the test scripts will be replaced 19361 by better Test::Harness variants in the future) 19362 19363 *Ralf S. Engelschall* 19364 19365 * First cut for a very conservative source tree cleanup: 19366 1. merge various obsolete readme texts into doc/ssleay.txt 19367 where we collect the old documents and readme texts. 19368 2. remove the first part of files where I'm already sure that we no 19369 longer need them because of three reasons: either they are just temporary 19370 files which were left by Eric or they are preserved original files where 19371 I've verified that the diff is also available in the CVS via "cvs diff 19372 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19373 the crypto/md/ stuff). 19374 19375 *Ralf S. Engelschall* 19376 19377 * More extension code. Incomplete support for subject and issuer alt 19378 name, issuer and authority key id. Change the i2v function parameters 19379 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19380 what that's for :-) Fix to ASN1 macro which messed up 19381 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19382 19383 *Steve Henson* 19384 19385 * Preliminary support for ENUMERATED type. This is largely copied from the 19386 INTEGER code. 19387 19388 *Steve Henson* 19389 19390 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19391 19392 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19393 19394 * Make sure `make rehash` target really finds the `openssl` program. 19395 19396 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19397 19398 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19399 like to hear about it if this slows down other processors. 19400 19401 *Ben Laurie* 19402 19403 * Add CygWin32 platform information to Configure script. 19404 19405 *Alan Batie <batie@aahz.jf.intel.com>* 19406 19407 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19408 19409 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19410 19411 * New program nseq to manipulate netscape certificate sequences 19412 19413 *Steve Henson* 19414 19415 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19416 few typos. 19417 19418 *Steve Henson* 19419 19420 * Fixes to BN code. Previously the default was to define BN_RECURSION 19421 but the BN code had some problems that would cause failures when 19422 doing certificate verification and some other functions. 19423 19424 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19425 19426 * Add ASN1 and PEM code to support netscape certificate sequences. 19427 19428 *Steve Henson* 19429 19430 * Add ASN1 and PEM code to support netscape certificate sequences. 19431 19432 *Steve Henson* 19433 19434 * Add several PKIX and private extended key usage OIDs. 19435 19436 *Steve Henson* 19437 19438 * Modify the 'ca' program to handle the new extension code. Modify 19439 openssl.cnf for new extension format, add comments. 19440 19441 *Steve Henson* 19442 19443 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19444 and add a sample to openssl.cnf so req -x509 now adds appropriate 19445 CA extensions. 19446 19447 *Steve Henson* 19448 19449 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19450 error code, add initial support to X509_print() and x509 application. 19451 19452 *Steve Henson* 19453 19454 * Takes a deep breath and start adding X509 V3 extension support code. Add 19455 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19456 stuff is currently isolated and isn't even compiled yet. 19457 19458 *Steve Henson* 19459 19460 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19461 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19462 Removed the versions check from X509 routines when loading extensions: 19463 this allows certain broken certificates that don't set the version 19464 properly to be processed. 19465 19466 *Steve Henson* 19467 19468 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19469 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19470 can still be regenerated with "make depend". 19471 19472 *Ben Laurie* 19473 19474 * Spelling mistake in C version of CAST-128. 19475 19476 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19477 19478 * Changes to the error generation code. The perl script err-code.pl 19479 now reads in the old error codes and retains the old numbers, only 19480 adding new ones if necessary. It also only changes the .err files if new 19481 codes are added. The makefiles have been modified to only insert errors 19482 when needed (to avoid needlessly modifying header files). This is done 19483 by only inserting errors if the .err file is newer than the auto generated 19484 C file. To rebuild all the error codes from scratch (the old behaviour) 19485 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19486 or delete all the .err files. 19487 19488 *Steve Henson* 19489 19490 * CAST-128 was incorrectly implemented for short keys. The C version has 19491 been fixed, but is untested. The assembler versions are also fixed, but 19492 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19493 to regenerate it if needed. 19494 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19495 Hagino <itojun@kame.net>* 19496 19497 * File was opened incorrectly in randfile.c. 19498 19499 *Ulf Möller <ulf@fitug.de>* 19500 19501 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19502 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19503 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19504 al: it's just almost always a UTCTime. Note this patch adds new error 19505 codes so do a "make errors" if there are problems. 19506 19507 *Steve Henson* 19508 19509 * Correct Linux 1 recognition in config. 19510 19511 *Ulf Möller <ulf@fitug.de>* 19512 19513 * Remove pointless MD5 hash when using DSA keys in ca. 19514 19515 *Anonymous <nobody@replay.com>* 19516 19517 * Generate an error if given an empty string as a cert directory. Also 19518 generate an error if handed NULL (previously returned 0 to indicate an 19519 error, but didn't set one). 19520 19521 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19522 19523 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19524 19525 *Ben Laurie* 19526 19527 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19528 parameters. This was causing a warning which killed off the Win32 compile. 19529 19530 *Steve Henson* 19531 19532 * Remove C++ style comments from crypto/bn/bn_local.h. 19533 19534 *Neil Costigan <neil.costigan@celocom.com>* 19535 19536 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19537 based on a text string, looking up short and long names and finally 19538 "dot" format. The "dot" format stuff didn't work. Added new function 19539 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19540 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19541 OID is not part of the table. 19542 19543 *Steve Henson* 19544 19545 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19546 X509_LOOKUP_by_alias(). 19547 19548 *Ben Laurie* 19549 19550 * Sort openssl functions by name. 19551 19552 *Ben Laurie* 19553 19554 * Get the `gendsa` command working and add it to the `list` command. Remove 19555 encryption from sample DSA keys (in case anyone is interested the password 19556 was "1234"). 19557 19558 *Steve Henson* 19559 19560 * Make *all* `*_free` functions accept a NULL pointer. 19561 19562 *Frans Heymans <fheymans@isaserver.be>* 19563 19564 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19565 NULL pointers. 19566 19567 *Anonymous <nobody@replay.com>* 19568 19569 * s_server should send the CAfile as acceptable CAs, not its own cert. 19570 19571 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19572 19573 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19574 19575 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19576 19577 * Temp key "for export" tests were wrong in s3_srvr.c. 19578 19579 *Anonymous <nobody@replay.com>* 19580 19581 * Add prototype for temp key callback functions 19582 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19583 19584 *Ben Laurie* 19585 19586 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19587 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19588 19589 *Steve Henson* 19590 19591 * X509_name_add_entry() freed the wrong thing after an error. 19592 19593 *Arne Ansper <arne@ats.cyber.ee>* 19594 19595 * rsa_eay.c would attempt to free a NULL context. 19596 19597 *Arne Ansper <arne@ats.cyber.ee>* 19598 19599 * BIO_s_socket() had a broken should_retry() on Windoze. 19600 19601 *Arne Ansper <arne@ats.cyber.ee>* 19602 19603 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19604 19605 *Arne Ansper <arne@ats.cyber.ee>* 19606 19607 * Make sure the already existing X509_STORE->depth variable is initialized 19608 in X509_STORE_new(), but document the fact that this variable is still 19609 unused in the certificate verification process. 19610 19611 *Ralf S. Engelschall* 19612 19613 * Fix the various library and `apps/` files to free up pkeys obtained from 19614 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19615 19616 *Steve Henson* 19617 19618 * Fix reference counting in X509_PUBKEY_get(). This makes 19619 demos/maurice/example2.c work, amongst others, probably. 19620 19621 *Steve Henson and Ben Laurie* 19622 19623 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19624 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19625 are no longer created. This way we have a single and consistent command 19626 line interface `openssl <command>`, similar to `cvs <command>`. 19627 19628 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19629 19630 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19631 BIT STRING wrapper always have zero unused bits. 19632 19633 *Steve Henson* 19634 19635 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19636 19637 *Steve Henson* 19638 19639 * Make the top-level INSTALL documentation easier to understand. 19640 19641 *Paul Sutton* 19642 19643 * Makefiles updated to exit if an error occurs in a sub-directory 19644 make (including if user presses ^C) [Paul Sutton] 19645 19646 * Make Montgomery context stuff explicit in RSA data structure. 19647 19648 *Ben Laurie* 19649 19650 * Fix build order of pem and err to allow for generated pem.h. 19651 19652 *Ben Laurie* 19653 19654 * Fix renumbering bug in X509_NAME_delete_entry(). 19655 19656 *Ben Laurie* 19657 19658 * Enhanced the err-ins.pl script so it makes the error library number 19659 global and can add a library name. This is needed for external ASN1 and 19660 other error libraries. 19661 19662 *Steve Henson* 19663 19664 * Fixed sk_insert which never worked properly. 19665 19666 *Steve Henson* 19667 19668 * Fix ASN1 macros so they can handle indefinite length constructed 19669 EXPLICIT tags. Some non standard certificates use these: they can now 19670 be read in. 19671 19672 *Steve Henson* 19673 19674 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19675 into a single doc/ssleay.txt bundle. This way the information is still 19676 preserved but no longer messes up this directory. Now it's new room for 19677 the new set of documentation files. 19678 19679 *Ralf S. Engelschall* 19680 19681 * SETs were incorrectly DER encoded. This was a major pain, because they 19682 shared code with SEQUENCEs, which aren't coded the same. This means that 19683 almost everything to do with SETs or SEQUENCEs has either changed name or 19684 number of arguments. 19685 19686 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19687 19688 * Fix test data to work with the above. 19689 19690 *Ben Laurie* 19691 19692 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19693 was already fixed by Eric for 0.9.1 it seems. 19694 19695 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19696 19697 * Autodetect FreeBSD3. 19698 19699 *Ben Laurie* 19700 19701 * Fix various bugs in Configure. This affects the following platforms: 19702 nextstep 19703 ncr-scde 19704 unixware-2.0 19705 unixware-2.0-pentium 19706 sco5-cc. 19707 19708 *Ben Laurie* 19709 19710 * Eliminate generated files from CVS. Reorder tests to regenerate files 19711 before they are needed. 19712 19713 *Ben Laurie* 19714 19715 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19716 19717 *Ben Laurie* 19718 19719### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19720 19721 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19722 changed SSLeay to OpenSSL in version strings. 19723 19724 *Ralf S. Engelschall* 19725 19726 * Some fixups to the top-level documents. 19727 19728 *Paul Sutton* 19729 19730 * Fixed the nasty bug where rsaref.h was not found under compile-time 19731 because the symlink to include/ was missing. 19732 19733 *Ralf S. Engelschall* 19734 19735 * Incorporated the popular no-RSA/DSA-only patches 19736 which allow to compile an RSA-free SSLeay. 19737 19738 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19739 19740 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19741 when "ssleay" is still not found. 19742 19743 *Ralf S. Engelschall* 19744 19745 * Added more platforms to Configure: Cray T3E, HPUX 11, 19746 19747 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19748 19749 * Updated the README file. 19750 19751 *Ralf S. Engelschall* 19752 19753 * Added various .cvsignore files in the CVS repository subdirs 19754 to make a "cvs update" really silent. 19755 19756 *Ralf S. Engelschall* 19757 19758 * Recompiled the error-definition header files and added 19759 missing symbols to the Win32 linker tables. 19760 19761 *Ralf S. Engelschall* 19762 19763 * Cleaned up the top-level documents; 19764 o new files: CHANGES and LICENSE 19765 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19766 o merged COPYRIGHT into LICENSE 19767 o removed obsolete TODO file 19768 o renamed MICROSOFT to INSTALL.W32 19769 19770 *Ralf S. Engelschall* 19771 19772 * Removed dummy files from the 0.9.1b source tree: 19773 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19774 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19775 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19776 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19777 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19778 19779 *Ralf S. Engelschall* 19780 19781 * Added various platform portability fixes. 19782 19783 *Mark J. Cox* 19784 19785 * The Genesis of the OpenSSL rpject: 19786 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19787 Young and Tim J. Hudson created while they were working for C2Net until 19788 summer 1998. 19789 19790 *The OpenSSL Project* 19791 19792### Changes between 0.9.0b and 0.9.1b [not released] 19793 19794 * Updated a few CA certificates under certs/ 19795 19796 *Eric A. Young* 19797 19798 * Changed some BIGNUM api stuff. 19799 19800 *Eric A. Young* 19801 19802 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19803 DGUX x86, Linux Alpha, etc. 19804 19805 *Eric A. Young* 19806 19807 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19808 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19809 available). 19810 19811 *Eric A. Young* 19812 19813 * Add -strparse option to asn1pars program which parses nested 19814 binary structures 19815 19816 *Dr Stephen Henson <shenson@bigfoot.com>* 19817 19818 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19819 19820 *Eric A. Young* 19821 19822 * DSA fix for "ca" program. 19823 19824 *Eric A. Young* 19825 19826 * Added "-genkey" option to "dsaparam" program. 19827 19828 *Eric A. Young* 19829 19830 * Added RIPE MD160 (rmd160) message digest. 19831 19832 *Eric A. Young* 19833 19834 * Added -a (all) option to "ssleay version" command. 19835 19836 *Eric A. Young* 19837 19838 * Added PLATFORM define which is the id given to Configure. 19839 19840 *Eric A. Young* 19841 19842 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19843 19844 *Eric A. Young* 19845 19846 * Extended the ASN.1 parser routines. 19847 19848 *Eric A. Young* 19849 19850 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19851 19852 *Eric A. Young* 19853 19854 * Added a BN_CTX to the BN library. 19855 19856 *Eric A. Young* 19857 19858 * Fixed the weak key values in DES library 19859 19860 *Eric A. Young* 19861 19862 * Changed API in EVP library for cipher aliases. 19863 19864 *Eric A. Young* 19865 19866 * Added support for RC2/64bit cipher. 19867 19868 *Eric A. Young* 19869 19870 * Converted the lhash library to the crypto/mem.c functions. 19871 19872 *Eric A. Young* 19873 19874 * Added more recognized ASN.1 object ids. 19875 19876 *Eric A. Young* 19877 19878 * Added more RSA padding checks for SSL/TLS. 19879 19880 *Eric A. Young* 19881 19882 * Added BIO proxy/filter functionality. 19883 19884 *Eric A. Young* 19885 19886 * Added extra_certs to SSL_CTX which can be used 19887 send extra CA certificates to the client in the CA cert chain sending 19888 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19889 19890 *Eric A. Young* 19891 19892 * Now Fortezza is denied in the authentication phase because 19893 this is key exchange mechanism is not supported by SSLeay at all. 19894 19895 *Eric A. Young* 19896 19897 * Additional PKCS1 checks. 19898 19899 *Eric A. Young* 19900 19901 * Support the string "TLSv1" for all TLS v1 ciphers. 19902 19903 *Eric A. Young* 19904 19905 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19906 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19907 19908 *Eric A. Young* 19909 19910 * Fixed a few memory leaks. 19911 19912 *Eric A. Young* 19913 19914 * Fixed various code and comment typos. 19915 19916 *Eric A. Young* 19917 19918 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19919 bytes sent in the client random. 19920 19921 *Edward Bishop <ebishop@spyglass.com>* 19922 19923<!-- Links --> 19924 19925[CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119 19926[CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535 19927[CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741 19928[CVE-2024-4603]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4603 19929[CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511 19930[CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727 19931[CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237 19932[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 19933[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678 19934[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 19935[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807 19936[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 19937[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 19938[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 19939[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 19940[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 19941[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 19942[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 19943[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 19944[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 19945[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19946[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19947[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19948[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19949[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19950[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19951[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19952[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19953[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19954[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19955[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 19956[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19957[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19958[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19959[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19960[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19961[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19962[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19963[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19964[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19965[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19966[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 19967[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 19968[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 19969[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 19970[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 19971[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 19972[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 19973[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 19974[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 19975[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 19976[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 19977[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 19978[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 19979[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 19980[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 19981[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 19982[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 19983[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 19984[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 19985[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 19986[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 19987[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 19988[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 19989[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 19990[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 19991[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 19992[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 19993[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 19994[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 19995[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 19996[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 19997[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 19998[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 19999[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 20000[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 20001[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 20002[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 20003[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 20004[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 20005[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 20006[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 20007[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 20008[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 20009[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 20010[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 20011[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 20012[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 20013[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 20014[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 20015[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 20016[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 20017[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 20018[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 20019[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 20020[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 20021[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 20022[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 20023[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 20024[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 20025[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 20026[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 20027[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 20028[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 20029[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 20030[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 20031[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 20032[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 20033[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 20034[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 20035[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 20036[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 20037[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 20038[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 20039[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 20040[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 20041[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 20042[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 20043[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 20044[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 20045[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 20046[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 20047[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 20048[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 20049[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 20050[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 20051[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 20052[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 20053[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 20054[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 20055[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 20056[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 20057[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 20058[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 20059[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 20060[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 20061[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 20062[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 20063[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 20064[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 20065[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 20066[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 20067[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 20068[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 20069[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 20070[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 20071[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 20072[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 20073[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 20074[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 20075[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 20076[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 20077[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 20078[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 20079[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 20080[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 20081[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 20082[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 20083[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 20084[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 20085[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 20086[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 20087[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 20088[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 20089[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 20090[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 20091[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 20092[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 20093[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 20094[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 20095[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 20096[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 20097[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 20098[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 20099[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 20100[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 20101[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 20102[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 20103[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 20104[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 20105[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 20106[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 20107[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 20108[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 20109[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 20110[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 20111[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 20112[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 20113[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 20114[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 20115[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 20116[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 20117[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 20118