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 3.0.11 and 3.0.12 [24 Oct 2023] 32 33 * Fix incorrect key and IV resizing issues when calling EVP_EncryptInit_ex2(), 34 EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() with OSSL_PARAM parameters 35 that alter the key or IV length ([CVE-2023-5363]). 36 37 *Paul Dale* 38 39### Changes between 3.0.10 and 3.0.11 [19 Sep 2023] 40 41 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 42 43 The POLY1305 MAC (message authentication code) implementation in OpenSSL 44 does not save the contents of non-volatile XMM registers on Windows 64 45 platform when calculating the MAC of data larger than 64 bytes. Before 46 returning to the caller all the XMM registers are set to zero rather than 47 restoring their previous content. The vulnerable code is used only on newer 48 x86_64 processors supporting the AVX512-IFMA instructions. 49 50 The consequences of this kind of internal application state corruption can 51 be various - from no consequences, if the calling application does not 52 depend on the contents of non-volatile XMM registers at all, to the worst 53 consequences, where the attacker could get complete control of the 54 application process. However given the contents of the registers are just 55 zeroized so the attacker cannot put arbitrary values inside, the most likely 56 consequence, if any, would be an incorrect result of some application 57 dependent calculations or a crash leading to a denial of service. 58 59 ([CVE-2023-4807]) 60 61 *Bernd Edlinger* 62 63### Changes between 3.0.9 and 3.0.10 [1 Aug 2023] 64 65 * Fix excessive time spent checking DH q parameter value. 66 67 The function DH_check() performs various checks on DH parameters. After 68 fixing CVE-2023-3446 it was discovered that a large q parameter value can 69 also trigger an overly long computation during some of these checks. 70 A correct q value, if present, cannot be larger than the modulus p 71 parameter, thus it is unnecessary to perform these checks if q is larger 72 than p. 73 74 If DH_check() is called with such q parameter value, 75 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 76 intensive checks are skipped. 77 78 ([CVE-2023-3817]) 79 80 *Tomáš Mráz* 81 82 * Fix DH_check() excessive time with over sized modulus. 83 84 The function DH_check() performs various checks on DH parameters. One of 85 those checks confirms that the modulus ("p" parameter) is not too large. 86 Trying to use a very large modulus is slow and OpenSSL will not normally use 87 a modulus which is over 10,000 bits in length. 88 89 However the DH_check() function checks numerous aspects of the key or 90 parameters that have been supplied. Some of those checks use the supplied 91 modulus value even if it has already been found to be too large. 92 93 A new limit has been added to DH_check of 32,768 bits. Supplying a 94 key/parameters with a modulus over this size will simply cause DH_check() to 95 fail. 96 97 ([CVE-2023-3446]) 98 99 *Matt Caswell* 100 101 * Do not ignore empty associated data entries with AES-SIV. 102 103 The AES-SIV algorithm allows for authentication of multiple associated 104 data entries along with the encryption. To authenticate empty data the 105 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 106 with NULL pointer as the output buffer and 0 as the input buffer length. 107 The AES-SIV implementation in OpenSSL just returns success for such call 108 instead of performing the associated data authentication operation. 109 The empty data thus will not be authenticated. ([CVE-2023-2975]) 110 111 Thanks to Juerg Wullschleger (Google) for discovering the issue. 112 113 The fix changes the authentication tag value and the ciphertext for 114 applications that use empty associated data entries with AES-SIV. 115 To decrypt data encrypted with previous versions of OpenSSL the application 116 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 117 entries. 118 119 *Tomáš Mráz* 120 121### Changes between 3.0.8 and 3.0.9 [30 May 2023] 122 123 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 124 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 125 126 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 127 numeric text form. For gigantic sub-identifiers, this would take a very 128 long time, the time complexity being O(n^2) where n is the size of that 129 sub-identifier. ([CVE-2023-2650]) 130 131 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 132 IDENTIFIER to canonical numeric text form if the size of that OBJECT 133 IDENTIFIER is 586 bytes or less, and fail otherwise. 134 135 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 136 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 137 most 128 sub-identifiers, and that the maximum value that each sub- 138 identifier may have is 2^32-1 (4294967295 decimal). 139 140 For each byte of every sub-identifier, only the 7 lower bits are part of 141 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 142 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 143 bytes. 144 145 *Richard Levitte* 146 147 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 148 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 149 trigger a crash of an application using AES-XTS decryption if the memory 150 just after the buffer being decrypted is not mapped. 151 Thanks to Anton Romanov (Amazon) for discovering the issue. 152 ([CVE-2023-1255]) 153 154 *Nevine Ebeid* 155 156 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 157 The previous fix for this timing side channel turned out to cause 158 a severe 2-3x performance regression in the typical use case 159 compared to 3.0.7. The new fix uses existing constant time 160 code paths, and restores the previous performance level while 161 fully eliminating all existing timing side channels. 162 The fix was developed by Bernd Edlinger with testing support 163 by Hubert Kario. 164 165 *Bernd Edlinger* 166 167 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 168 that it does not enable policy checking. Thanks to David Benjamin for 169 discovering this issue. 170 ([CVE-2023-0466]) 171 172 *Tomáš Mráz* 173 174 * Fixed an issue where invalid certificate policies in leaf certificates are 175 silently ignored by OpenSSL and other certificate policy checks are skipped 176 for that certificate. A malicious CA could use this to deliberately assert 177 invalid certificate policies in order to circumvent policy checking on the 178 certificate altogether. 179 ([CVE-2023-0465]) 180 181 *Matt Caswell* 182 183 * Limited the number of nodes created in a policy tree to mitigate 184 against CVE-2023-0464. The default limit is set to 1000 nodes, which 185 should be sufficient for most installations. If required, the limit 186 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 187 time define to a desired maximum number of nodes or zero to allow 188 unlimited growth. 189 ([CVE-2023-0464]) 190 191 *Paul Dale* 192 193### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 194 195 * Fixed NULL dereference during PKCS7 data verification. 196 197 A NULL pointer can be dereferenced when signatures are being 198 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 199 algorithm used for the signature is known to the OpenSSL library but 200 the implementation of the hash algorithm is not available the digest 201 initialization will fail. There is a missing check for the return 202 value from the initialization function which later leads to invalid 203 usage of the digest API most likely leading to a crash. 204 ([CVE-2023-0401]) 205 206 PKCS7 data is processed by the SMIME library calls and also by the 207 time stamp (TS) library calls. The TLS implementation in OpenSSL does 208 not call these functions however third party applications would be 209 affected if they call these functions to verify signatures on untrusted 210 data. 211 212 *Tomáš Mráz* 213 214 * Fixed X.400 address type confusion in X.509 GeneralName. 215 216 There is a type confusion vulnerability relating to X.400 address processing 217 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 218 but the public structure definition for GENERAL_NAME incorrectly specified 219 the type of the x400Address field as ASN1_TYPE. This field is subsequently 220 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 221 than an ASN1_STRING. 222 223 When CRL checking is enabled (i.e. the application sets the 224 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 225 pass arbitrary pointers to a memcmp call, enabling them to read memory 226 contents or enact a denial of service. 227 ([CVE-2023-0286]) 228 229 *Hugo Landau* 230 231 * Fixed NULL dereference validating DSA public key. 232 233 An invalid pointer dereference on read can be triggered when an 234 application tries to check a malformed DSA public key by the 235 EVP_PKEY_public_check() function. This will most likely lead 236 to an application crash. This function can be called on public 237 keys supplied from untrusted sources which could allow an attacker 238 to cause a denial of service attack. 239 240 The TLS implementation in OpenSSL does not call this function 241 but applications might call the function if there are additional 242 security requirements imposed by standards such as FIPS 140-3. 243 ([CVE-2023-0217]) 244 245 *Shane Lontis, Tomáš Mráz* 246 247 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 248 249 An invalid pointer dereference on read can be triggered when an 250 application tries to load malformed PKCS7 data with the 251 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 252 253 The result of the dereference is an application crash which could 254 lead to a denial of service attack. The TLS implementation in OpenSSL 255 does not call this function however third party applications might 256 call these functions on untrusted data. 257 ([CVE-2023-0216]) 258 259 *Tomáš Mráz* 260 261 * Fixed Use-after-free following BIO_new_NDEF. 262 263 The public API function BIO_new_NDEF is a helper function used for 264 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 265 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 266 be called directly by end user applications. 267 268 The function receives a BIO from the caller, prepends a new BIO_f_asn1 269 filter BIO onto the front of it to form a BIO chain, and then returns 270 the new head of the BIO chain to the caller. Under certain conditions, 271 for example if a CMS recipient public key is invalid, the new filter BIO 272 is freed and the function returns a NULL result indicating a failure. 273 However, in this case, the BIO chain is not properly cleaned up and the 274 BIO passed by the caller still retains internal pointers to the previously 275 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 276 then a use-after-free will occur. This will most likely result in a crash. 277 ([CVE-2023-0215]) 278 279 *Viktor Dukhovni, Matt Caswell* 280 281 * Fixed Double free after calling PEM_read_bio_ex. 282 283 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 284 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 285 data. If the function succeeds then the "name_out", "header" and "data" 286 arguments are populated with pointers to buffers containing the relevant 287 decoded data. The caller is responsible for freeing those buffers. It is 288 possible to construct a PEM file that results in 0 bytes of payload data. 289 In this case PEM_read_bio_ex() will return a failure code but will populate 290 the header argument with a pointer to a buffer that has already been freed. 291 If the caller also frees this buffer then a double free will occur. This 292 will most likely lead to a crash. 293 294 The functions PEM_read_bio() and PEM_read() are simple wrappers around 295 PEM_read_bio_ex() and therefore these functions are also directly affected. 296 297 These functions are also called indirectly by a number of other OpenSSL 298 functions including PEM_X509_INFO_read_bio_ex() and 299 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 300 internal uses of these functions are not vulnerable because the caller does 301 not free the header argument if PEM_read_bio_ex() returns a failure code. 302 ([CVE-2022-4450]) 303 304 *Kurt Roeckx, Matt Caswell* 305 306 * Fixed Timing Oracle in RSA Decryption. 307 308 A timing based side channel exists in the OpenSSL RSA Decryption 309 implementation which could be sufficient to recover a plaintext across 310 a network in a Bleichenbacher style attack. To achieve a successful 311 decryption an attacker would have to be able to send a very large number 312 of trial messages for decryption. The vulnerability affects all RSA padding 313 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 314 ([CVE-2022-4304]) 315 316 *Dmitry Belyavsky, Hubert Kario* 317 318 * Fixed X.509 Name Constraints Read Buffer Overflow. 319 320 A read buffer overrun can be triggered in X.509 certificate verification, 321 specifically in name constraint checking. The read buffer overrun might 322 result in a crash which could lead to a denial of service attack. 323 In a TLS client, this can be triggered by connecting to a malicious 324 server. In a TLS server, this can be triggered if the server requests 325 client authentication and a malicious client connects. 326 ([CVE-2022-4203]) 327 328 *Viktor Dukhovni* 329 330 * Fixed X.509 Policy Constraints Double Locking security issue. 331 332 If an X.509 certificate contains a malformed policy constraint and 333 policy processing is enabled, then a write lock will be taken twice 334 recursively. On some operating systems (most widely: Windows) this 335 results in a denial of service when the affected process hangs. Policy 336 processing being enabled on a publicly facing server is not considered 337 to be a common setup. 338 ([CVE-2022-3996]) 339 340 *Paul Dale* 341 342 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 343 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 344 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 345 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 346 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 347 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 348 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 349 for legacy EC and SM2 keys is also changed similarly to honor the 350 equivalent conversion format flag as specified in the underlying 351 `EC_KEY` object being exported to a provider, when this function is 352 called through `EVP_PKEY_export()`. 353 354 *Nicola Tuveri* 355 356### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 357 358 * Fixed two buffer overflows in punycode decoding functions. 359 360 A buffer overrun can be triggered in X.509 certificate verification, 361 specifically in name constraint checking. Note that this occurs after 362 certificate chain signature verification and requires either a CA to 363 have signed the malicious certificate or for the application to continue 364 certificate verification despite failure to construct a path to a trusted 365 issuer. 366 367 In a TLS client, this can be triggered by connecting to a malicious 368 server. In a TLS server, this can be triggered if the server requests 369 client authentication and a malicious client connects. 370 371 An attacker can craft a malicious email address to overflow 372 an arbitrary number of bytes containing the `.` character (decimal 46) 373 on the stack. This buffer overflow could result in a crash (causing a 374 denial of service). 375 ([CVE-2022-3786]) 376 377 An attacker can craft a malicious email address to overflow four 378 attacker-controlled bytes on the stack. This buffer overflow could 379 result in a crash (causing a denial of service) or potentially remote code 380 execution depending on stack layout for any given platform/compiler. 381 ([CVE-2022-3602]) 382 383 *Paul Dale* 384 385 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 386 parameters in OpenSSL code. 387 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 388 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 389 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 390 Using these invalid names may cause algorithms to use slower methods 391 that ignore the CRT parameters. 392 393 *Shane Lontis* 394 395 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 396 operations. 397 398 *Tomáš Mráz* 399 400 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 401 data to be signed before signing the certificate. 402 403 *Gibeom Gwon* 404 405 * Added RIPEMD160 to the default provider. 406 407 *Paul Dale* 408 409 * Ensured that the key share group sent or accepted for the key exchange 410 is allowed for the protocol version. 411 412 *Matt Caswell* 413 414### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 415 416 * OpenSSL supports creating a custom cipher via the legacy 417 EVP_CIPHER_meth_new() function and associated function calls. This function 418 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 419 to use the new provider mechanism in order to implement custom ciphers. 420 421 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 422 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 423 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 424 and decryption initialisation functions). Instead of using the custom cipher 425 directly it incorrectly tries to fetch an equivalent cipher from the 426 available providers. An equivalent cipher is found based on the NID passed to 427 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 428 given cipher. However it is possible for an application to incorrectly pass 429 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 430 is used in this way the OpenSSL encryption/decryption initialisation function 431 will match the NULL cipher as being equivalent and will fetch this from the 432 available providers. This will succeed if the default provider has been 433 loaded (or if a third party provider has been loaded that offers this 434 cipher). Using the NULL cipher means that the plaintext is emitted as the 435 ciphertext. 436 437 Applications are only affected by this issue if they call 438 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 439 encryption/decryption initialisation function. Applications that only use 440 SSL/TLS are not impacted by this issue. 441 ([CVE-2022-3358]) 442 443 *Matt Caswell* 444 445 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 446 on MacOS 10.11 447 448 *Richard Levitte* 449 450 * Fixed the linux-mips64 Configure target which was missing the 451 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 452 platform. 453 454 *Adam Joseph* 455 456 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 457 ticket 458 459 *Matt Caswell* 460 461 * Correctly handle a retransmitted ClientHello in DTLS 462 463 *Matt Caswell* 464 465 * Fixed detection of ktls support in cross-compile environment on Linux 466 467 *Tomas Mraz* 468 469 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 470 against 3.0.x 471 472 *Paul Dale* 473 474 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 475 report correct results in some cases 476 477 *Matt Caswell* 478 479 * Fix UWP builds by defining VirtualLock 480 481 *Charles Milette* 482 483 * For known safe primes use the minimum key length according to RFC 7919. 484 Longer private key sizes unnecessarily raise the cycles needed to compute the 485 shared secret without any increase of the real security. This fixes a 486 regression from 1.1.1 where these shorter keys were generated for the known 487 safe primes. 488 489 *Tomas Mraz* 490 491 * Added the loongarch64 target 492 493 *Shi Pujin* 494 495 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 496 only passed to the FIPS provider and not to the default or legacy provider. 497 498 *Juergen Christ* 499 500 * Fixed reported performance degradation on aarch64. Restored the 501 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 502 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 503 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 504 The new algorithm is still used for 32 bit targets. 505 506 *Bernd Edlinger* 507 508 * Added a missing header for memcmp that caused compilation failure on some 509 platforms 510 511 *Gregor Jasny* 512 513### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 514 515 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 516 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 517 This issue makes the RSA implementation with 2048 bit private keys 518 incorrect on such machines and memory corruption will happen during 519 the computation. As a consequence of the memory corruption an attacker 520 may be able to trigger a remote code execution on the machine performing 521 the computation. 522 523 SSL/TLS servers or other servers using 2048 bit RSA private keys running 524 on machines supporting AVX512IFMA instructions of the X86_64 architecture 525 are affected by this issue. 526 ([CVE-2022-2274]) 527 528 *Xi Ruoyao* 529 530 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 531 implementation would not encrypt the entirety of the data under some 532 circumstances. This could reveal sixteen bytes of data that was 533 preexisting in the memory that wasn't written. In the special case of 534 "in place" encryption, sixteen bytes of the plaintext would be revealed. 535 536 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 537 they are both unaffected. 538 ([CVE-2022-2097]) 539 540 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 541 542### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 543 544 * In addition to the c_rehash shell command injection identified in 545 CVE-2022-1292, further bugs where the c_rehash script does not 546 properly sanitise shell metacharacters to prevent command injection have been 547 fixed. 548 549 When the CVE-2022-1292 was fixed it was not discovered that there 550 are other places in the script where the file names of certificates 551 being hashed were possibly passed to a command executed through the shell. 552 553 This script is distributed by some operating systems in a manner where 554 it is automatically executed. On such operating systems, an attacker 555 could execute arbitrary commands with the privileges of the script. 556 557 Use of the c_rehash script is considered obsolete and should be replaced 558 by the OpenSSL rehash command line tool. 559 (CVE-2022-2068) 560 561 *Daniel Fiala, Tomáš Mráz* 562 563 * Case insensitive string comparison no longer uses locales. It has instead 564 been directly implemented. 565 566 *Paul Dale* 567 568### Changes between 3.0.2 and 3.0.3 [3 May 2022] 569 570 * Case insensitive string comparison is reimplemented via new locale-agnostic 571 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 572 comparison. The previous implementation had problems when the Turkish locale 573 was used. 574 575 *Dmitry Belyavskiy* 576 577 * Fixed a bug in the c_rehash script which was not properly sanitising shell 578 metacharacters to prevent command injection. This script is distributed by 579 some operating systems in a manner where it is automatically executed. On 580 such operating systems, an attacker could execute arbitrary commands with the 581 privileges of the script. 582 583 Use of the c_rehash script is considered obsolete and should be replaced 584 by the OpenSSL rehash command line tool. 585 (CVE-2022-1292) 586 587 *Tomáš Mráz* 588 589 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 590 certificate on an OCSP response. The bug caused the function in the case 591 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 592 response (meaning a successful verification) even in the case where the 593 response signing certificate fails to verify. 594 595 It is anticipated that most users of `OCSP_basic_verify` will not use the 596 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 597 a negative value (indicating a fatal error) in the case of a certificate 598 verification failure. The normal expected return value in this case would be 599 0. 600 601 This issue also impacts the command line OpenSSL "ocsp" application. When 602 verifying an ocsp response with the "-no_cert_checks" option the command line 603 application will report that the verification is successful even though it 604 has in fact failed. In this case the incorrect successful response will also 605 be accompanied by error messages showing the failure and contradicting the 606 apparently successful result. 607 ([CVE-2022-1343]) 608 609 *Matt Caswell* 610 611 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 612 AAD data as the MAC key. This made the MAC key trivially predictable. 613 614 An attacker could exploit this issue by performing a man-in-the-middle attack 615 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 616 that the modified data would still pass the MAC integrity check. 617 618 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 619 endpoint will always be rejected by the recipient and the connection will 620 fail at that point. Many application protocols require data to be sent from 621 the client to the server first. Therefore, in such a case, only an OpenSSL 622 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 623 624 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 625 sent in both directions. In this case both clients and servers could be 626 affected, regardless of the application protocol. 627 628 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 629 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 630 the handshake when using this ciphersuite. 631 632 The confidentiality of data is not impacted by this issue, i.e. an attacker 633 cannot decrypt data that has been encrypted using this ciphersuite - they can 634 only modify it. 635 636 In order for this attack to work both endpoints must legitimately negotiate 637 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 638 OpenSSL 3.0, and is not available within the default provider or the default 639 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 640 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 641 following must have occurred: 642 643 1) OpenSSL must have been compiled with the (non-default) compile time option 644 enable-weak-ssl-ciphers 645 646 2) OpenSSL must have had the legacy provider explicitly loaded (either 647 through application code or via configuration) 648 649 3) The ciphersuite must have been explicitly added to the ciphersuite list 650 651 4) The libssl security level must have been set to 0 (default is 1) 652 653 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 654 655 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 656 others that both endpoints have in common 657 (CVE-2022-1434) 658 659 *Matt Caswell* 660 661 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 662 occuppied by the removed hash table entries. 663 664 This function is used when decoding certificates or keys. If a long lived 665 process periodically decodes certificates or keys its memory usage will 666 expand without bounds and the process might be terminated by the operating 667 system causing a denial of service. Also traversing the empty hash table 668 entries will take increasingly more time. 669 670 Typically such long lived processes might be TLS clients or TLS servers 671 configured to accept client certificate authentication. 672 (CVE-2022-1473) 673 674 *Hugo Landau, Aliaksei Levin* 675 676 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 677 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 678 statistics are no longer supported. For compatibility, these statistics are 679 still listed in the output but are now always reported as zero. 680 681 *Hugo Landau* 682 683### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 684 685 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 686 for non-prime moduli. 687 688 Internally this function is used when parsing certificates that contain 689 elliptic curve public keys in compressed form or explicit elliptic curve 690 parameters with a base point encoded in compressed form. 691 692 It is possible to trigger the infinite loop by crafting a certificate that 693 has invalid explicit curve parameters. 694 695 Since certificate parsing happens prior to verification of the certificate 696 signature, any process that parses an externally supplied certificate may thus 697 be subject to a denial of service attack. The infinite loop can also be 698 reached when parsing crafted private keys as they can contain explicit 699 elliptic curve parameters. 700 701 Thus vulnerable situations include: 702 703 - TLS clients consuming server certificates 704 - TLS servers consuming client certificates 705 - Hosting providers taking certificates or private keys from customers 706 - Certificate authorities parsing certification requests from subscribers 707 - Anything else which parses ASN.1 elliptic curve parameters 708 709 Also any other applications that use the BN_mod_sqrt() where the attacker 710 can control the parameter values are vulnerable to this DoS issue. 711 ([CVE-2022-0778]) 712 713 *Tomáš Mráz* 714 715 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 716 to the list of ciphersuites providing Perfect Forward Secrecy as 717 required by SECLEVEL >= 3. 718 719 *Dmitry Belyavskiy, Nicola Tuveri* 720 721 * Made the AES constant time code for no-asm configurations 722 optional due to the resulting 95% performance degradation. 723 The AES constant time code can be enabled, for no assembly 724 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 725 726 *Paul Dale* 727 728 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 729 passphrase strings. 730 731 *Darshan Sen* 732 733 * The negative return value handling of the certificate verification callback 734 was reverted. The replacement is to set the verification retry state with 735 the SSL_set_retry_verify() function. 736 737 *Tomáš Mráz* 738 739### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 740 741 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 742 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 743 verify a certificate supplied by a server. That function may return a 744 negative return value to indicate an internal error (for example out of 745 memory). Such a negative return value is mishandled by OpenSSL and will cause 746 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 747 success and a subsequent call to SSL_get_error() to return the value 748 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 749 returned by OpenSSL if the application has previously called 750 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 751 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 752 totally unexpected and applications may not behave correctly as a result. The 753 exact behaviour will depend on the application but it could result in 754 crashes, infinite loops or other similar incorrect responses. 755 756 This issue is made more serious in combination with a separate bug in OpenSSL 757 3.0 that will cause X509_verify_cert() to indicate an internal error when 758 processing a certificate chain. This will occur where a certificate does not 759 include the Subject Alternative Name extension but where a Certificate 760 Authority has enforced name constraints. This issue can occur even with valid 761 chains. 762 ([CVE-2021-4044]) 763 764 *Matt Caswell* 765 766 * Corrected a few file name and file reference bugs in the build, 767 installation and setup scripts, which lead to installation verification 768 failures. Slightly enhanced the installation verification script. 769 770 *Richard Levitte* 771 772 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 773 keys. 774 775 *Richard Levitte* 776 777 * Fixed PVK encoder to properly query for the passphrase. 778 779 *Tomáš Mráz* 780 781 * Multiple fixes in the OSSL_HTTP API functions. 782 783 *David von Oheimb* 784 785 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 786 OSSL_PARAM_INTEGER data type and return error on negative numbers 787 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 788 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 789 790 *Richard Levitte* 791 792 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 793 794 *Tomáš Mráz* 795 796 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 797 798 *Allan Jude* 799 800 * Multiple threading fixes. 801 802 *Matt Caswell* 803 804 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 805 806 *Tomáš Mráz* 807 808 * Allow fetching an operation from the provider that owns an unexportable key 809 as a fallback if that is still allowed by the property query. 810 811 *Richard Levitte* 812 813### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 814 815 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 816 deprecated. 817 818 *Matt Caswell* 819 820 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 821 S390X capability vector to zero. This simplifies testing of different code 822 paths on S390X architecture. 823 824 *Patrick Steuer* 825 826 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 827 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 828 SP 800-38D". The communication will fail at this point. 829 830 *Paul Dale* 831 832 * The EC_GROUP_clear_free() function is deprecated as there is nothing 833 confidential in EC_GROUP data. 834 835 *Nicola Tuveri* 836 837 * The byte order mark (BOM) character is ignored if encountered at the 838 beginning of a PEM-formatted file. 839 840 *Dmitry Belyavskiy* 841 842 * Added CMS support for the Russian GOST algorithms. 843 844 *Dmitry Belyavskiy* 845 846 * Due to move of the implementation of cryptographic operations 847 to the providers, validation of various operation parameters can 848 be postponed until the actual operation is executed where previously 849 it happened immediately when an operation parameter was set. 850 851 For example when setting an unsupported curve with 852 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 853 fail but later keygen operations with the EVP_PKEY_CTX will fail. 854 855 *OpenSSL team members and many third party contributors* 856 857 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 858 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 859 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 860 instead to retrieve these algorithms from a provider. 861 862 *Shane Lontis* 863 864 * On build targets where the multilib postfix is set in the build 865 configuration the libdir directory was changing based on whether 866 the lib directory with the multilib postfix exists on the system 867 or not. This unpredictable behavior was removed and eventual 868 multilib postfix is now always added to the default libdir. Use 869 `--libdir=lib` to override the libdir if adding the postfix is 870 undesirable. 871 872 *Jan Lána* 873 874 * The triple DES key wrap functionality now conforms to RFC 3217 but is 875 no longer interoperable with OpenSSL 1.1.1. 876 877 *Paul Dale* 878 879 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 880 function codes, this function can only cause problems for calling 881 applications. 882 883 *Paul Dale* 884 885 * Add a configurable flag to output date formats as ISO 8601. Does not 886 change the default date format. 887 888 *William Edmisten* 889 890 * Version of MSVC earlier than 1300 could get link warnings, which could 891 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 892 Support for this flag has been removed. 893 894 *Rich Salz* 895 896 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 897 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 898 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 899 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 900 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 901 902 *Rich Salz* 903 904 * The signatures of the functions to get and set options on SSL and 905 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 906 Some source code changes may be required. 907 908 *Rich Salz* 909 910 * The public definitions of conf_method_st and conf_st have been 911 deprecated. They will be made opaque in a future release. 912 913 *Rich Salz and Tomáš Mráz* 914 915 * Client-initiated renegotiation is disabled by default. To allow it, use 916 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 917 flag, or the "ClientRenegotiation" config parameter as appropriate. 918 919 *Rich Salz* 920 921 * Add "abspath" and "includedir" pragma's to config files, to prevent, 922 or modify relative pathname inclusion. 923 924 *Rich Salz* 925 926 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 927 validated. Please consult the README-FIPS and 928 README-PROVIDERS files, as well as the migration guide. 929 930 *OpenSSL team members and many third party contributors* 931 932 * For the key types DH and DHX the allowed settable parameters are now different. 933 934 *Shane Lontis* 935 936 * The openssl commands that read keys, certificates, and CRLs now 937 automatically detect the PEM or DER format of the input files. 938 939 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 940 941 * Added enhanced PKCS#12 APIs which accept a library context. 942 943 *Jon Spillett* 944 945 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 946 947 *Matt Caswell* 948 949 * Added support for Kernel TLS (KTLS). 950 951 *Boris Pismenny, John Baldwin and Andrew Gallatin* 952 953 * Support for RFC 5746 secure renegotiation is now required by default for 954 SSL or TLS connections to succeed. 955 956 *Benjamin Kaduk* 957 958 * The signature of the `copy` functional parameter of the 959 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 960 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 961 the signature of the `pub_decode` functional parameter of the 962 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 963 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 964 965 *David von Oheimb* 966 967 * The error return values from some control calls (ctrl) have changed. 968 969 *Paul Dale* 970 971 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 972 973 *Shane Lontis* 974 975 * Many functions in the EVP_ namespace that are getters of values from 976 implementations or contexts were renamed to include get or get0 in their 977 names. Old names are provided as macro aliases for compatibility and 978 are not deprecated. 979 980 *Tomáš Mráz* 981 982 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 983 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 984 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 985 are deprecated. 986 987 *Tomáš Mráz* 988 989 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 990 more key types. 991 992 * The output from the command line applications may have minor 993 changes. 994 995 *Paul Dale* 996 997 * The output from numerous "printing" may have minor changes. 998 999 *David von Oheimb* 1000 1001 * Windows thread synchronization uses read/write primitives (SRWLock) when 1002 supported by the OS, otherwise CriticalSection continues to be used. 1003 1004 *Vincent Drake* 1005 1006 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 1007 work on read only BIO source/sinks that do not support these functions. 1008 This allows piping or redirection of a file BIO using stdin to be buffered 1009 into memory. This is used internally in OSSL_DECODER_from_bio(). 1010 1011 *Shane Lontis* 1012 1013 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 1014 this function would return one of the values OSSL_STORE_INFO_NAME, 1015 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 1016 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 1017 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 1018 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 1019 using this function should be amended to handle the changed return value. 1020 1021 *Richard Levitte* 1022 1023 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 1024 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 1025 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 1026 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 1027 contains more than one certificate identifier: This means that all 1028 certificates referenced there MUST be part of the validation chain. 1029 1030 *David von Oheimb* 1031 1032 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 1033 RC5, DESX and DES have been moved to the legacy provider. 1034 1035 *Matt Caswell* 1036 1037 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 1038 RIPEMD-160 have been moved to the legacy provider. 1039 1040 *Matt Caswell* 1041 1042 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 1043 provided key. 1044 1045 *Dmitry Belyavskiy* 1046 1047 * The deprecated functions EVP_PKEY_get0_RSA(), 1048 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 1049 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 1050 well as the similarly named "get1" functions behave differently in 1051 OpenSSL 3.0. 1052 1053 *Matt Caswell* 1054 1055 * A number of functions handling low-level keys or engines were deprecated 1056 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 1057 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 1058 EVP_PKEY_get0_siphash(). 1059 1060 *Matt Caswell* 1061 1062 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 1063 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 1064 will need to load the legacy crypto provider. This includes these PBE 1065 algorithms which use this KDF: 1066 - NID_pbeWithMD2AndDES_CBC 1067 - NID_pbeWithMD5AndDES_CBC 1068 - NID_pbeWithSHA1AndRC2_CBC 1069 - NID_pbeWithMD2AndRC2_CBC 1070 - NID_pbeWithMD5AndRC2_CBC 1071 - NID_pbeWithSHA1AndDES_CBC 1072 1073 *Jon Spillett* 1074 1075 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 1076 BIO_debug_callback() functions. 1077 1078 *Tomáš Mráz* 1079 1080 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 1081 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 1082 1083 *Tomáš Mráz* 1084 1085 * The RAND_METHOD APIs have been deprecated. 1086 1087 *Paul Dale* 1088 1089 * The SRP APIs have been deprecated. 1090 1091 *Matt Caswell* 1092 1093 * Add a compile time option to prevent the caching of provider fetched 1094 algorithms. This is enabled by including the no-cached-fetch option 1095 at configuration time. 1096 1097 *Paul Dale* 1098 1099 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 1100 count of PKCS12_DEFAULT_ITER. 1101 1102 *Tomáš Mráz and Sahana Prasad* 1103 1104 * The openssl speed command does not use low-level API calls anymore. 1105 1106 *Tomáš Mráz* 1107 1108 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 1109 capable processors. 1110 1111 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1112 1113 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 1114 1115 *Matt Caswell* 1116 1117 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 1118 providers may supply their own group implementations (using either the "key 1119 exchange" or the "key encapsulation" methods) which will automatically be 1120 detected and used by libssl. 1121 1122 *Matt Caswell, Nicola Tuveri* 1123 1124 * The undocumented function X509_certificate_type() has been deprecated; 1125 1126 *Rich Salz* 1127 1128 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 1129 1130 *Tomáš Mráz* 1131 1132 * Removed RSA padding mode for SSLv23 (which was only used for 1133 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 1134 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 1135 `rsautl` command. 1136 1137 *Rich Salz* 1138 1139 * Deprecated the obsolete X9.31 RSA key generation related functions. 1140 1141 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 1142 is not allowed to return a value > 1, this is no more taken as failure. 1143 1144 *Viktor Dukhovni and David von Oheimb* 1145 1146 * Deprecated the obsolete X9.31 RSA key generation related functions 1147 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 1148 BN_X931_generate_prime_ex(). 1149 1150 *Tomáš Mráz* 1151 1152 * The default key generation method for the regular 2-prime RSA keys was 1153 changed to the FIPS 186-4 B.3.6 method. 1154 1155 *Shane Lontis* 1156 1157 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 1158 1159 *Kurt Roeckx* 1160 1161 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1162 1163 *Rich Salz* 1164 1165 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1166 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1167 1168 *Rich Salz, Richard Levitte, and David von Oheimb* 1169 1170 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1171 1172 *David von Oheimb* 1173 1174 * Deprecated `OCSP_parse_url()`. 1175 1176 *David von Oheimb* 1177 1178 * Validation of SM2 keys has been separated from the validation of regular EC 1179 keys. 1180 1181 *Nicola Tuveri* 1182 1183 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1184 switches: a validation failure triggers an early exit, returning a failure 1185 exit status to the parent process. 1186 1187 *Nicola Tuveri* 1188 1189 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1190 to ignore unknown ciphers. 1191 1192 *Otto Hollmann* 1193 1194 * The `-cipher-commands` and `-digest-commands` options 1195 of the command line utility `list` have been deprecated. 1196 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1197 1198 *Dmitry Belyavskiy* 1199 1200 * Added convenience functions for generating asymmetric key pairs: 1201 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1202 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1203 1204 *David von Oheimb* 1205 1206 * All of the low level EC_KEY functions have been deprecated. 1207 1208 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1209 1210 * Deprecated all the libcrypto and libssl error string loading 1211 functions. 1212 1213 *Richard Levitte* 1214 1215 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1216 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1217 deprecated. 1218 1219 *Matt Caswell* 1220 1221 * The `-crypt` option to the `passwd` command line tool has been removed. 1222 1223 *Paul Dale* 1224 1225 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1226 were removed. 1227 1228 *Rich Salz* 1229 1230 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1231 1232 *Shane Lontis* 1233 1234 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1235 EVP_PKEY_get1_tls_encodedpoint(). 1236 1237 *Matt Caswell* 1238 1239 * The security callback, which can be customised by application code, supports 1240 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1241 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1242 1243 *Matt Caswell* 1244 1245 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1246 interface. Their functionality remains unchanged. 1247 1248 *Jordan Montgomery* 1249 1250 * Added new option for 'openssl list', '-providers', which will display the 1251 list of loaded providers, their names, version and status. It optionally 1252 displays their gettable parameters. 1253 1254 *Paul Dale* 1255 1256 * Removed EVP_PKEY_set_alias_type(). 1257 1258 *Richard Levitte* 1259 1260 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1261 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1262 1263 *Jeremy Walch* 1264 1265 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1266 parameters are still checked for type safety at compile time via helper 1267 inline functions. 1268 1269 *Matt Caswell* 1270 1271 * Remove the RAND_DRBG API 1272 1273 *Paul Dale and Matthias St. Pierre* 1274 1275 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1276 as well as actual hostnames. 1277 1278 *David Woodhouse* 1279 1280 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1281 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1282 conversely, silently ignore DTLS protocol version bounds when configuring 1283 TLS-based contexts. The commands can be repeated to set bounds of both 1284 types. The same applies with the corresponding "min_protocol" and 1285 "max_protocol" command-line switches, in case some application uses both TLS 1286 and DTLS. 1287 1288 SSL_CTX instances that are created for a fixed protocol version (e.g. 1289 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1290 attempts to apply bounds to these protocol versions would result in an 1291 error. Now only the "version-flexible" SSL_CTX instances are subject to 1292 limits in configuration files in command-line options. 1293 1294 *Viktor Dukhovni* 1295 1296 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1297 going forward. 1298 1299 *Paul Dale* 1300 1301 * Reworked the recorded ERR codes to make better space for system errors. 1302 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1303 given code is a system error (true) or an OpenSSL error (false). 1304 1305 *Richard Levitte* 1306 1307 * Reworked the test perl framework to better allow parallel testing. 1308 1309 *Nicola Tuveri and David von Oheimb* 1310 1311 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1312 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1313 1314 *Shane Lontis* 1315 1316 * 'Configure' has been changed to figure out the configuration target if 1317 none is given on the command line. Consequently, the 'config' script is 1318 now only a mere wrapper. All documentation is changed to only mention 1319 'Configure'. 1320 1321 *Rich Salz and Richard Levitte* 1322 1323 * Added a library context `OSSL_LIB_CTX` that applications as well as 1324 other libraries can use to form a separate context within which 1325 libcrypto operations are performed. 1326 1327 *Richard Levitte* 1328 1329 * Added various `_ex` functions to the OpenSSL API that support using 1330 a non-default `OSSL_LIB_CTX`. 1331 1332 *OpenSSL team* 1333 1334 * Handshake now fails if Extended Master Secret extension is dropped 1335 on renegotiation. 1336 1337 *Tomáš Mráz* 1338 1339 * Dropped interactive mode from the `openssl` program. 1340 1341 *Richard Levitte* 1342 1343 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1344 1345 *David von Oheimb and Shane Lontis* 1346 1347 * Deprecated `EC_METHOD_get_field_type()`. 1348 1349 *Billy Bob Brumley* 1350 1351 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1352 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1353 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1354 1355 *Billy Bob Brumley* 1356 1357 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1358 1359 *Billy Bob Brumley* 1360 1361 * Add CAdES-BES signature verification support, mostly derived 1362 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1363 1364 *Filipe Raimundo da Silva* 1365 1366 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1367 1368 *Antonio Iacono* 1369 1370 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1371 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1372 1373 *Jakub Zelenka* 1374 1375 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1376 1377 *Billy Bob Brumley* 1378 1379 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1380 EC_KEY_precompute_mult(). 1381 1382 *Billy Bob Brumley* 1383 1384 * Deprecated EC_POINTs_mul(). 1385 1386 *Billy Bob Brumley* 1387 1388 * Removed FIPS_mode() and FIPS_mode_set(). 1389 1390 *Shane Lontis* 1391 1392 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1393 1394 *Dmitry Belyavskiy* 1395 1396 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1397 EC_POINT_get_Jprojective_coordinates_GFp(). 1398 1399 *Billy Bob Brumley* 1400 1401 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1402 arrays to be more easily constructed via a series of utility functions. 1403 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1404 the various push functions and finally convert to a passable OSSL_PARAM 1405 array using OSSL_PARAM_BLD_to_param(). 1406 1407 *Paul Dale* 1408 1409 * The security strength of SHA1 and MD5 based signatures in TLS has been 1410 reduced. 1411 1412 *Kurt Roeckx* 1413 1414 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1415 contain a provider side internal key. 1416 1417 *Richard Levitte* 1418 1419 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1420 1421 *Richard Levitte* 1422 1423 * Project text documents not yet having a proper file name extension 1424 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1425 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1426 1427 *David von Oheimb* 1428 1429 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1430 have been converted to Markdown with the goal to produce documents 1431 which not only look pretty when viewed online in the browser, but 1432 remain well readable inside a plain text editor. 1433 1434 To achieve this goal, a 'minimalistic' Markdown style has been applied 1435 which avoids formatting elements that interfere too much with the 1436 reading flow in the text file. For example, it 1437 1438 * avoids [ATX headings][] and uses [setext headings][] instead 1439 (which works for `<h1>` and `<h2>` headings only). 1440 * avoids [inline links][] and uses [reference links][] instead. 1441 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1442 1443 [ATX headings]: https://github.github.com/gfm/#atx-headings 1444 [setext headings]: https://github.github.com/gfm/#setext-headings 1445 [inline links]: https://github.github.com/gfm/#inline-link 1446 [reference links]: https://github.github.com/gfm/#reference-link 1447 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1448 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1449 1450 *Matthias St. Pierre* 1451 1452 * The test suite is changed to preserve results of each test recipe. 1453 A new directory test-runs/ with subdirectories named like the 1454 test recipes are created in the build tree for this purpose. 1455 1456 *Richard Levitte* 1457 1458 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1459 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1460 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1461 1462 *David von Oheimb, Martin Peylo* 1463 1464 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1465 It supports arbitrary request and response content types, GET redirection, 1466 TLS, connections via HTTP(S) proxies, connections and exchange via 1467 user-defined BIOs (allowing implicit connections), persistent connections, 1468 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1469 The legacy OCSP-focused (and only partly documented) API 1470 is retained for backward compatibility, while most of it is deprecated. 1471 1472 *David von Oheimb* 1473 1474 * Added `util/check-format.pl`, a tool for checking adherence to the 1475 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1476 The checks performed are incomplete and yield some false positives. 1477 Still the tool should be useful for detecting most typical glitches. 1478 1479 *David von Oheimb* 1480 1481 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1482 If domain name resolution yields multiple IP addresses all of them are tried 1483 after `connect()` failures. 1484 1485 *David von Oheimb* 1486 1487 * All of the low level RSA functions have been deprecated. 1488 1489 *Paul Dale* 1490 1491 * X509 certificates signed using SHA1 are no longer allowed at security 1492 level 1 and above. 1493 1494 *Kurt Roeckx* 1495 1496 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1497 modified to use PKEY APIs. These commands are now in maintenance mode 1498 and no new features will be added to them. 1499 1500 *Paul Dale* 1501 1502 * The command line utility rsautl has been deprecated. 1503 1504 *Paul Dale* 1505 1506 * The command line utilities genrsa and rsa have been modified to use PKEY 1507 APIs. They now write PKCS#8 keys by default. These commands are now in 1508 maintenance mode and no new features will be added to them. 1509 1510 *Paul Dale* 1511 1512 * All of the low level DH functions have been deprecated. 1513 1514 *Paul Dale and Matt Caswell* 1515 1516 * All of the low level DSA functions have been deprecated. 1517 1518 *Paul Dale* 1519 1520 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1521 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1522 1523 *Richard Levitte* 1524 1525 * Deprecated low level ECDH and ECDSA functions. 1526 1527 *Paul Dale* 1528 1529 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1530 1531 *Richard Levitte* 1532 1533 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1534 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1535 a new formulation to include all the things it can be used for, 1536 as well as words of caution. 1537 1538 *Richard Levitte* 1539 1540 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1541 1542 *Paul Dale* 1543 1544 * All of the low level HMAC functions have been deprecated. 1545 1546 *Paul Dale and David von Oheimb* 1547 1548 * Over two thousand fixes were made to the documentation, including: 1549 - Common options (such as -rand/-writerand, TLS version control, etc) 1550 were refactored and point to newly-enhanced descriptions in openssl.pod. 1551 - Added style conformance for all options (with help from Richard Levitte), 1552 documented all reported missing options, added a CI build to check 1553 that all options are documented and that no unimplemented options 1554 are documented. 1555 - Documented some internals, such as all use of environment variables. 1556 - Addressed all internal broken L<> references. 1557 1558 *Rich Salz* 1559 1560 * All of the low level CMAC functions have been deprecated. 1561 1562 *Paul Dale* 1563 1564 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1565 functions have been deprecated. 1566 1567 *Paul Dale and David von Oheimb* 1568 1569 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1570 set of functions. The documentation mentioned negative values for some 1571 errors, but this was never the case, so the mention of negative values 1572 was removed. 1573 1574 Code that followed the documentation and thereby check with something 1575 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1576 1577 *Richard Levitte* 1578 1579 * All of the low level cipher functions have been deprecated. 1580 1581 *Matt Caswell and Paul Dale* 1582 1583 * Removed include/openssl/opensslconf.h.in and replaced it with 1584 include/openssl/configuration.h.in, which differs in not including 1585 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1586 was added to include both. 1587 1588 This allows internal hacks where one might need to modify the set 1589 of configured macros, for example this if deprecated symbols are 1590 still supposed to be available internally: 1591 1592 #include <openssl/configuration.h> 1593 1594 #undef OPENSSL_NO_DEPRECATED 1595 #define OPENSSL_SUPPRESS_DEPRECATED 1596 1597 #include <openssl/macros.h> 1598 1599 This should not be used by applications that use the exported 1600 symbols, as that will lead to linking errors. 1601 1602 *Richard Levitte* 1603 1604 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1605 used in exponentiation with 512-bit moduli. No EC algorithms are 1606 affected. Analysis suggests that attacks against 2-prime RSA1024, 1607 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1608 difficult to perform and are not believed likely. Attacks against DH512 1609 are considered just feasible. However, for an attack the target would 1610 have to re-use the DH512 private key, which is not recommended anyway. 1611 Also applications directly using the low-level API BN_mod_exp may be 1612 affected if they use BN_FLG_CONSTTIME. 1613 ([CVE-2019-1551]) 1614 1615 *Andy Polyakov* 1616 1617 * Most memory-debug features have been deprecated, and the functionality 1618 replaced with no-ops. 1619 1620 *Rich Salz* 1621 1622 * Added documentation for the STACK API. 1623 1624 *Rich Salz* 1625 1626 * Introduced a new method type and API, OSSL_ENCODER, to represent 1627 generic encoders. These do the same sort of job that PEM writers 1628 and d2i functions do, but with support for methods supplied by 1629 providers, and the possibility for providers to support other 1630 formats as well. 1631 1632 *Richard Levitte* 1633 1634 * Introduced a new method type and API, OSSL_DECODER, to represent 1635 generic decoders. These do the same sort of job that PEM readers 1636 and i2d functions do, but with support for methods supplied by 1637 providers, and the possibility for providers to support other 1638 formats as well. 1639 1640 *Richard Levitte* 1641 1642 * Added a .pragma directive to the syntax of configuration files, to 1643 allow varying behavior in a supported and predictable manner. 1644 Currently added pragma: 1645 1646 .pragma dollarid:on 1647 1648 This allows dollar signs to be a keyword character unless it's 1649 followed by a opening brace or parenthesis. This is useful for 1650 platforms where dollar signs are commonly used in names, such as 1651 volume names and system directory names on VMS. 1652 1653 *Richard Levitte* 1654 1655 * Added functionality to create an EVP_PKEY from user data. 1656 1657 *Richard Levitte* 1658 1659 * Change the interpretation of the '--api' configuration option to 1660 mean that this is a desired API compatibility level with no 1661 further meaning. The previous interpretation, that this would 1662 also mean to remove all deprecated symbols up to and including 1663 the given version, no requires that 'no-deprecated' is also used 1664 in the configuration. 1665 1666 When building applications, the desired API compatibility level 1667 can be set with the OPENSSL_API_COMPAT macro like before. For 1668 API compatibility version below 3.0, the old style numerical 1669 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1670 For version 3.0 and on, the value is expected to be the decimal 1671 value calculated from the major and minor version like this: 1672 1673 MAJOR * 10000 + MINOR * 100 1674 1675 Examples: 1676 1677 -DOPENSSL_API_COMPAT=30000 For 3.0 1678 -DOPENSSL_API_COMPAT=30200 For 3.2 1679 1680 To hide declarations that are deprecated up to and including the 1681 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1682 given when building the application as well. 1683 1684 *Richard Levitte* 1685 1686 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1687 access to certificate and CRL stores via URIs and OSSL_STORE 1688 loaders. 1689 1690 This adds the following functions: 1691 1692 - X509_LOOKUP_store() 1693 - X509_STORE_load_file() 1694 - X509_STORE_load_path() 1695 - X509_STORE_load_store() 1696 - SSL_add_store_cert_subjects_to_stack() 1697 - SSL_CTX_set_default_verify_store() 1698 - SSL_CTX_load_verify_file() 1699 - SSL_CTX_load_verify_dir() 1700 - SSL_CTX_load_verify_store() 1701 1702 *Richard Levitte* 1703 1704 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1705 The presence of this system service is determined at run-time. 1706 1707 *Richard Levitte* 1708 1709 * Added functionality to create an EVP_PKEY context based on data 1710 for methods from providers. This takes an algorithm name and a 1711 property query string and simply stores them, with the intent 1712 that any operation that uses this context will use those strings 1713 to fetch the needed methods implicitly, thereby making the port 1714 of application written for pre-3.0 OpenSSL easier. 1715 1716 *Richard Levitte* 1717 1718 * The undocumented function NCONF_WIN32() has been deprecated; for 1719 conversion details see the HISTORY section of doc/man5/config.pod 1720 1721 *Rich Salz* 1722 1723 * Introduced the new functions EVP_DigestSignInit_ex() and 1724 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1725 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1726 pages for further details. 1727 1728 *Matt Caswell* 1729 1730 * Over two thousand fixes were made to the documentation, including: 1731 adding missing command flags, better style conformance, documentation 1732 of internals, etc. 1733 1734 *Rich Salz, Richard Levitte* 1735 1736 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1737 X25519, X448, Ed25519 and Ed448. 1738 1739 *Patrick Steuer* 1740 1741 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1742 the first value. 1743 1744 *Jon Spillett* 1745 1746 * Deprecated the public definition of `ERR_STATE` as well as the function 1747 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1748 opaque type. 1749 1750 *Richard Levitte* 1751 1752 * Added ERR functionality to give callers access to the stored function 1753 names that have replaced the older function code based functions. 1754 1755 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1756 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1757 ERR_peek_error_all() and ERR_peek_last_error_all(). 1758 1759 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1760 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1761 ERR_func_error_string(). 1762 1763 *Richard Levitte* 1764 1765 * Extended testing to be verbose for failing tests only. The make variables 1766 VERBOSE_FAILURE or VF can be used to enable this: 1767 1768 $ make VF=1 test # Unix 1769 $ mms /macro=(VF=1) test ! OpenVMS 1770 $ nmake VF=1 test # Windows 1771 1772 *Richard Levitte* 1773 1774 * Added the `-copy_extensions` option to the `x509` command for use with 1775 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1776 all extensions in the request are copied to the certificate or vice versa. 1777 1778 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1779 1780 * Added the `-copy_extensions` option to the `req` command for use with 1781 `-x509`. When given with the `copy` or `copyall` argument, 1782 all extensions in the certification request are copied to the certificate. 1783 1784 *David von Oheimb* 1785 1786 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 1787 they generate are by default RFC 5280 compliant in the following sense: 1788 There is a subjectKeyIdentifier extension with a hash value of the public key 1789 and for not self-signed certs there is an authorityKeyIdentifier extension 1790 with a keyIdentifier field or issuer information identifying the signing key. 1791 This is done unless some configuration overrides the new default behavior, 1792 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 1793 1794 *David von Oheimb* 1795 1796 * Added several checks to `X509_verify_cert()` according to requirements in 1797 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 1798 (which may be done by using the CLI option `-x509_strict`): 1799 * The basicConstraints of CA certificates must be marked critical. 1800 * CA certificates must explicitly include the keyUsage extension. 1801 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 1802 * The issuer name of any certificate must not be empty. 1803 * The subject name of CA certs, certs with keyUsage crlSign, 1804 and certs without subjectAlternativeName must not be empty. 1805 * If a subjectAlternativeName extension is given it must not be empty. 1806 * The signatureAlgorithm field and the cert signature must be consistent. 1807 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 1808 must not be marked critical. 1809 * The authorityKeyIdentifier must be given for X.509v3 certs 1810 unless they are self-signed. 1811 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 1812 1813 *David von Oheimb* 1814 1815 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 1816 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 1817 1818 *Tomáš Mráz* 1819 1820 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 1821 used even when parsing explicit parameters, when loading a encoded key 1822 or calling `EC_GROUP_new_from_ecpkparameters()`/ 1823 `EC_GROUP_new_from_ecparameters()`. 1824 This prevents bypass of security hardening and performance gains, 1825 especially for curves with specialized EC_METHODs. 1826 By default, if a key encoded with explicit parameters is loaded and later 1827 encoded, the output is still encoded with explicit parameters, even if 1828 internally a "named" EC_GROUP is used for computation. 1829 1830 *Nicola Tuveri* 1831 1832 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 1833 this change, EC_GROUP_set_generator would accept order and/or cofactor as 1834 NULL. After this change, only the cofactor parameter can be NULL. It also 1835 does some minimal sanity checks on the passed order. 1836 ([CVE-2019-1547]) 1837 1838 *Billy Bob Brumley* 1839 1840 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 1841 An attack is simple, if the first CMS_recipientInfo is valid but the 1842 second CMS_recipientInfo is chosen ciphertext. If the second 1843 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 1844 encryption key will be replaced by garbage, and the message cannot be 1845 decoded, but if the RSA decryption fails, the correct encryption key is 1846 used and the recipient will not notice the attack. 1847 As a work around for this potential attack the length of the decrypted 1848 key must be equal to the cipher default key length, in case the 1849 certifiate is not given and all recipientInfo are tried out. 1850 The old behaviour can be re-enabled in the CMS code by setting the 1851 CMS_DEBUG_DECRYPT flag. 1852 1853 *Bernd Edlinger* 1854 1855 * Early start up entropy quality from the DEVRANDOM seed source has been 1856 improved for older Linux systems. The RAND subsystem will wait for 1857 /dev/random to be producing output before seeding from /dev/urandom. 1858 The seeded state is stored for future library initialisations using 1859 a system global shared memory segment. The shared memory identifier 1860 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 1861 the desired value. The default identifier is 114. 1862 1863 *Paul Dale* 1864 1865 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 1866 when primes for RSA keys are computed. 1867 Since we previously always generated primes == 2 (mod 3) for RSA keys, 1868 the 2-prime and 3-prime RSA modules were easy to distinguish, since 1869 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 1870 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 1871 This avoids possible fingerprinting of newly generated RSA modules. 1872 1873 *Bernd Edlinger* 1874 1875 * Correct the extended master secret constant on EBCDIC systems. Without this 1876 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 1877 negotiate EMS will fail. Unfortunately this also means that TLS connections 1878 between EBCDIC systems with this fix, and EBCDIC systems without this 1879 fix will fail if they negotiate EMS. 1880 1881 *Matt Caswell* 1882 1883 * Changed the library initialisation so that the config file is now loaded 1884 by default. This was already the case for libssl. It now occurs for both 1885 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 1886 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 1887 1888 *Matt Caswell* 1889 1890 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 1891 where the former acts as a replacement for `ERR_put_error()`, and the 1892 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 1893 `ERR_raise_data()` adds more flexibility by taking a format string and 1894 an arbitrary number of arguments following it, to be processed with 1895 `BIO_snprintf()`. 1896 1897 *Richard Levitte* 1898 1899 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 1900 to check if a named provider is loaded and available. When called, it 1901 will also activate all fallback providers if such are still present. 1902 1903 *Richard Levitte* 1904 1905 * Enforce a minimum DH modulus size of 512 bits. 1906 1907 *Bernd Edlinger* 1908 1909 * Changed DH parameters to generate the order q subgroup instead of 2q. 1910 Previously generated DH parameters are still accepted by DH_check 1911 but DH_generate_key works around that by clearing bit 0 of the 1912 private key for those. This avoids leaking bit 0 of the private key. 1913 1914 *Bernd Edlinger* 1915 1916 * Significantly reduce secure memory usage by the randomness pools. 1917 1918 *Paul Dale* 1919 1920 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 1921 deprecated. 1922 1923 *Rich Salz* 1924 1925 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 1926 algorithms. An implementation of a key exchange algorithm can be obtained 1927 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 1928 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 1929 the older EVP_PKEY_derive_init() function. See the man pages for the new 1930 functions for further details. 1931 1932 *Matt Caswell* 1933 1934 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 1935 1936 *Matt Caswell* 1937 1938 * Removed the function names from error messages and deprecated the 1939 xxx_F_xxx define's. 1940 1941 *Richard Levitte* 1942 1943 * Removed NextStep support and the macro OPENSSL_UNISTD 1944 1945 *Rich Salz* 1946 1947 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 1948 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 1949 Also removed "export var as function" capability; we do not export 1950 variables, only functions. 1951 1952 *Rich Salz* 1953 1954 * RC5_32_set_key has been changed to return an int type, with 0 indicating 1955 an error and 1 indicating success. In previous versions of OpenSSL this 1956 was a void type. If a key was set longer than the maximum possible this 1957 would crash. 1958 1959 *Matt Caswell* 1960 1961 * Support SM2 signing and verification schemes with X509 certificate. 1962 1963 *Paul Yang* 1964 1965 * Use SHA256 as the default digest for TS query in the `ts` app. 1966 1967 *Tomáš Mráz* 1968 1969 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 1970 1971 *Shane Lontis* 1972 1973 * Default cipher lists/suites are now available via a function, the 1974 #defines are deprecated. 1975 1976 *Todd Short* 1977 1978 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 1979 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 1980 for Windows Store apps easier. Also, the "no-uplink" option has been added. 1981 1982 *Kenji Mouri* 1983 1984 * Join the directories crypto/x509 and crypto/x509v3 1985 1986 *Richard Levitte* 1987 1988 * Added command 'openssl kdf' that uses the EVP_KDF API. 1989 1990 *Shane Lontis* 1991 1992 * Added command 'openssl mac' that uses the EVP_MAC API. 1993 1994 *Shane Lontis* 1995 1996 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 1997 as default directories. Also added the command 'openssl info' 1998 for scripting purposes. 1999 2000 *Richard Levitte* 2001 2002 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 2003 deprecated. 2004 2005 *Matt Caswell* 2006 2007 * Add prediction resistance to the DRBG reseeding process. 2008 2009 *Paul Dale* 2010 2011 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 2012 mandated by IEEE Std 1619-2018. 2013 2014 *Paul Dale* 2015 2016 * Added newline escaping functionality to a filename when using openssl dgst. 2017 This output format is to replicate the output format found in the `*sum` 2018 checksum programs. This aims to preserve backward compatibility. 2019 2020 *Matt Eaton, Richard Levitte, and Paul Dale* 2021 2022 * Removed the heartbeat message in DTLS feature, as it has very 2023 little usage and doesn't seem to fulfill a valuable purpose. 2024 The configuration option is now deprecated. 2025 2026 *Richard Levitte* 2027 2028 * Changed the output of 'openssl {digestname} < file' to display the 2029 digest name in its output. 2030 2031 *Richard Levitte* 2032 2033 * Added a new generic trace API which provides support for enabling 2034 instrumentation through trace output. 2035 2036 *Richard Levitte & Matthias St. Pierre* 2037 2038 * Added build tests for C++. These are generated files that only do one 2039 thing, to include one public OpenSSL head file each. This tests that 2040 the public header files can be usefully included in a C++ application. 2041 2042 This test isn't enabled by default. It can be enabled with the option 2043 'enable-buildtest-c++'. 2044 2045 *Richard Levitte* 2046 2047 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 2048 2049 *Robbie Harwood* 2050 2051 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 2052 2053 *Simo Sorce* 2054 2055 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 2056 2057 *Shane Lontis* 2058 2059 * Added KMAC to EVP_MAC. 2060 2061 *Shane Lontis* 2062 2063 * Added property based algorithm implementation selection framework to 2064 the core. 2065 2066 *Paul Dale* 2067 2068 * Added SCA hardening for modular field inversion in EC_GROUP through 2069 a new dedicated field_inv() pointer in EC_METHOD. 2070 This also addresses a leakage affecting conversions from projective 2071 to affine coordinates. 2072 2073 *Billy Bob Brumley, Nicola Tuveri* 2074 2075 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 2076 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 2077 those algorithms that were already supported through the EVP_PKEY API 2078 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 2079 and scrypt are now wrappers that call EVP_KDF. 2080 2081 *David Makepeace* 2082 2083 * Build devcrypto engine as a dynamic engine. 2084 2085 *Eneas U de Queiroz* 2086 2087 * Add keyed BLAKE2 to EVP_MAC. 2088 2089 *Antoine Salon* 2090 2091 * Fix a bug in the computation of the endpoint-pair shared secret used 2092 by DTLS over SCTP. This breaks interoperability with older versions 2093 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 2094 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 2095 interoperability with such broken implementations. However, enabling 2096 this switch breaks interoperability with correct implementations. 2097 2098 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 2099 re-used X509_PUBKEY object if the second PUBKEY is malformed. 2100 2101 *Bernd Edlinger* 2102 2103 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 2104 2105 *Richard Levitte* 2106 2107 * Changed the license to the Apache License v2.0. 2108 2109 *Richard Levitte* 2110 2111 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 2112 2113 - Major releases (indicated by incrementing the MAJOR release number) 2114 may introduce incompatible API/ABI changes. 2115 - Minor releases (indicated by incrementing the MINOR release number) 2116 may introduce new features but retain API/ABI compatibility. 2117 - Patch releases (indicated by incrementing the PATCH number) 2118 are intended for bug fixes and other improvements of existing 2119 features only (like improving performance or adding documentation) 2120 and retain API/ABI compatibility. 2121 2122 *Richard Levitte* 2123 2124 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 2125 2126 *Todd Short* 2127 2128 * Remove the 'dist' target and add a tarball building script. The 2129 'dist' target has fallen out of use, and it shouldn't be 2130 necessary to configure just to create a source distribution. 2131 2132 *Richard Levitte* 2133 2134 * Recreate the OS390-Unix config target. It no longer relies on a 2135 special script like it did for OpenSSL pre-1.1.0. 2136 2137 *Richard Levitte* 2138 2139 * Instead of having the source directories listed in Configure, add 2140 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 2141 look into. 2142 2143 *Richard Levitte* 2144 2145 * Add GMAC to EVP_MAC. 2146 2147 *Paul Dale* 2148 2149 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 2150 2151 *Richard Levitte* 2152 2153 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 2154 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 2155 to facilitate the continued use of MACs through raw private keys in 2156 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 2157 2158 *Richard Levitte* 2159 2160 * Deprecate ECDH_KDF_X9_62(). 2161 2162 *Antoine Salon* 2163 2164 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2165 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2166 are retained for backwards compatibility. 2167 2168 *Antoine Salon* 2169 2170 * AES-XTS mode now enforces that its two keys are different to mitigate 2171 the attacked described in "Efficient Instantiations of Tweakable 2172 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2173 Details of this attack can be obtained from: 2174 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2175 2176 *Paul Dale* 2177 2178 * Rename the object files, i.e. give them other names than in previous 2179 versions. Their names now include the name of the final product, as 2180 well as its type mnemonic (bin, lib, shlib). 2181 2182 *Richard Levitte* 2183 2184 * Added new option for 'openssl list', '-objects', which will display the 2185 list of built in objects, i.e. OIDs with names. 2186 2187 *Richard Levitte* 2188 2189 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2190 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2191 be set explicitly. 2192 2193 *Chris Novakovic* 2194 2195 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2196 improves application performance by removing data copies and providing 2197 applications with zero-copy system calls such as sendfile and splice. 2198 2199 *Boris Pismenny* 2200 2201 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2202 2203 *Martin Elshuber* 2204 2205 * `PKCS12_parse` now maintains the order of the parsed certificates 2206 when outputting them via `*ca` (rather than reversing it). 2207 2208 *David von Oheimb* 2209 2210 * Deprecated pthread fork support methods. 2211 2212 *Randall S. Becker* 2213 2214 * Added support for FFDHE key exchange in TLS 1.3. 2215 2216 *Raja Ashok* 2217 2218 * Added a new concept for OpenSSL plugability: providers. This 2219 functionality is designed to replace the ENGINE API and ENGINE 2220 implementations, and to be much more dynamic, allowing provider 2221 authors to introduce new algorithms among other things, as long as 2222 there's an API that supports the algorithm type. 2223 2224 With this concept comes a new core API for interaction between 2225 libcrypto and provider implementations. Public libcrypto functions 2226 that want to use providers do so through this core API. 2227 2228 The main documentation for this core API is found in 2229 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2230 refer to other manuals describing the API specific for supported 2231 algorithm types (also called operations). 2232 2233 *The OpenSSL team* 2234 2235OpenSSL 1.1.1 2236------------- 2237 2238### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2239 2240 * Avoid loading of a dynamic engine twice. 2241 2242 *Bernd Edlinger* 2243 2244 * Prioritise DANE TLSA issuer certs over peer certs 2245 2246 *Viktor Dukhovni* 2247 2248 * Fixed random API for MacOS prior to 10.12 2249 2250 These MacOS versions don't support the CommonCrypto APIs 2251 2252 *Lenny Primak* 2253 2254### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2255 2256 * Fixed an SM2 Decryption Buffer Overflow. 2257 2258 In order to decrypt SM2 encrypted data an application is expected to 2259 call the API function EVP_PKEY_decrypt(). Typically an application will 2260 call this function twice. The first time, on entry, the "out" parameter 2261 can be NULL and, on exit, the "outlen" parameter is populated with the 2262 buffer size required to hold the decrypted plaintext. The application 2263 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2264 again, but this time passing a non-NULL value for the "out" parameter. 2265 2266 A bug in the implementation of the SM2 decryption code means that the 2267 calculation of the buffer size required to hold the plaintext returned 2268 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2269 size required by the second call. This can lead to a buffer overflow 2270 when EVP_PKEY_decrypt() is called by the application a second time with 2271 a buffer that is too small. 2272 2273 A malicious attacker who is able present SM2 content for decryption to 2274 an application could cause attacker chosen data to overflow the buffer 2275 by up to a maximum of 62 bytes altering the contents of other data held 2276 after the buffer, possibly changing application behaviour or causing 2277 the application to crash. The location of the buffer is application 2278 dependent but is typically heap allocated. 2279 ([CVE-2021-3711]) 2280 2281 *Matt Caswell* 2282 2283 * Fixed various read buffer overruns processing ASN.1 strings 2284 2285 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2286 structure which contains a buffer holding the string data and a field 2287 holding the buffer length. This contrasts with normal C strings which 2288 are repesented as a buffer for the string data which is terminated 2289 with a NUL (0) byte. 2290 2291 Although not a strict requirement, ASN.1 strings that are parsed using 2292 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2293 well as any string whose value has been set with the ASN1_STRING_set() 2294 function will additionally NUL terminate the byte array in the 2295 ASN1_STRING structure. 2296 2297 However, it is possible for applications to directly construct valid 2298 ASN1_STRING structures which do not NUL terminate the byte array by 2299 directly setting the "data" and "length" fields in the ASN1_STRING 2300 array. This can also happen by using the ASN1_STRING_set0() function. 2301 2302 Numerous OpenSSL functions that print ASN.1 data have been found to 2303 assume that the ASN1_STRING byte array will be NUL terminated, even 2304 though this is not guaranteed for strings that have been directly 2305 constructed. Where an application requests an ASN.1 structure to be 2306 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2307 been directly constructed by the application without NUL terminating 2308 the "data" field, then a read buffer overrun can occur. 2309 2310 The same thing can also occur during name constraints processing 2311 of certificates (for example if a certificate has been directly 2312 constructed by the application instead of loading it via the OpenSSL 2313 parsing functions, and the certificate contains non NUL terminated 2314 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2315 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2316 2317 If a malicious actor can cause an application to directly construct an 2318 ASN1_STRING and then process it through one of the affected OpenSSL 2319 functions then this issue could be hit. This might result in a crash 2320 (causing a Denial of Service attack). It could also result in the 2321 disclosure of private memory contents (such as private keys, or 2322 sensitive plaintext). 2323 ([CVE-2021-3712]) 2324 2325 *Matt Caswell* 2326 2327### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2328 2329 * Fixed a problem with verifying a certificate chain when using the 2330 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2331 the certificates present in a certificate chain. It is not set by default. 2332 2333 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2334 the chain that have explicitly encoded elliptic curve parameters was added 2335 as an additional strict check. 2336 2337 An error in the implementation of this check meant that the result of a 2338 previous check to confirm that certificates in the chain are valid CA 2339 certificates was overwritten. This effectively bypasses the check 2340 that non-CA certificates must not be able to issue other certificates. 2341 2342 If a "purpose" has been configured then there is a subsequent opportunity 2343 for checks that the certificate is a valid CA. All of the named "purpose" 2344 values implemented in libcrypto perform this check. Therefore, where 2345 a purpose is set the certificate chain will still be rejected even when the 2346 strict flag has been used. A purpose is set by default in libssl client and 2347 server certificate verification routines, but it can be overridden or 2348 removed by an application. 2349 2350 In order to be affected, an application must explicitly set the 2351 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2352 for the certificate verification or, in the case of TLS client or server 2353 applications, override the default purpose. 2354 ([CVE-2021-3450]) 2355 2356 *Tomáš Mráz* 2357 2358 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2359 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2360 renegotiation ClientHello omits the signature_algorithms extension (where it 2361 was present in the initial ClientHello), but includes a 2362 signature_algorithms_cert extension then a NULL pointer dereference will 2363 result, leading to a crash and a denial of service attack. 2364 2365 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2366 (which is the default configuration). OpenSSL TLS clients are not impacted by 2367 this issue. 2368 ([CVE-2021-3449]) 2369 2370 *Peter Kästle and Samuel Sapalski* 2371 2372### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2373 2374 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2375 create a unique hash value based on the issuer and serial number data 2376 contained within an X509 certificate. However it was failing to correctly 2377 handle any errors that may occur while parsing the issuer field (which might 2378 occur if the issuer field is maliciously constructed). This may subsequently 2379 result in a NULL pointer deref and a crash leading to a potential denial of 2380 service attack. 2381 ([CVE-2021-23841]) 2382 2383 *Matt Caswell* 2384 2385 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2386 padding mode to correctly check for rollback attacks. This is considered a 2387 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2388 CVE-2021-23839. 2389 2390 *Matt Caswell* 2391 2392 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2393 functions. Previously they could overflow the output length argument in some 2394 cases where the input length is close to the maximum permissable length for 2395 an integer on the platform. In such cases the return value from the function 2396 call would be 1 (indicating success), but the output length value would be 2397 negative. This could cause applications to behave incorrectly or crash. 2398 ([CVE-2021-23840]) 2399 2400 *Matt Caswell* 2401 2402 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2403 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2404 could be exploited in a side channel attack to recover the password. Since 2405 the attack is local host only this is outside of the current OpenSSL 2406 threat model and therefore no CVE is assigned. 2407 2408 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2409 issue. 2410 2411 *Matt Caswell* 2412 2413### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2414 2415 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2416 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2417 If an attacker can control both items being compared then this could lead 2418 to a possible denial of service attack. OpenSSL itself uses the 2419 GENERAL_NAME_cmp function for two purposes: 2420 1) Comparing CRL distribution point names between an available CRL and a 2421 CRL distribution point embedded in an X509 certificate 2422 2) When verifying that a timestamp response token signer matches the 2423 timestamp authority name (exposed via the API functions 2424 TS_RESP_verify_response and TS_RESP_verify_token) 2425 ([CVE-2020-1971]) 2426 2427 *Matt Caswell* 2428 2429### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2430 2431 * Certificates with explicit curve parameters are now disallowed in 2432 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2433 2434 *Tomáš Mráz* 2435 2436 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2437 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2438 conversely, silently ignore DTLS protocol version bounds when configuring 2439 TLS-based contexts. The commands can be repeated to set bounds of both 2440 types. The same applies with the corresponding "min_protocol" and 2441 "max_protocol" command-line switches, in case some application uses both TLS 2442 and DTLS. 2443 2444 SSL_CTX instances that are created for a fixed protocol version (e.g. 2445 TLSv1_server_method()) also silently ignore version bounds. Previously 2446 attempts to apply bounds to these protocol versions would result in an 2447 error. Now only the "version-flexible" SSL_CTX instances are subject to 2448 limits in configuration files in command-line options. 2449 2450 *Viktor Dukhovni* 2451 2452 * Handshake now fails if Extended Master Secret extension is dropped 2453 on renegotiation. 2454 2455 *Tomáš Mráz* 2456 2457 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2458 2459### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2460 2461 * Fixed segmentation fault in SSL_check_chain() 2462 Server or client applications that call the SSL_check_chain() function 2463 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2464 dereference as a result of incorrect handling of the 2465 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2466 or unrecognised signature algorithm is received from the peer. This could 2467 be exploited by a malicious peer in a Denial of Service attack. 2468 ([CVE-2020-1967]) 2469 2470 *Benjamin Kaduk* 2471 2472 * Added AES consttime code for no-asm configurations 2473 an optional constant time support for AES was added 2474 when building openssl for no-asm. 2475 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2476 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2477 At this time this feature is by default disabled. 2478 It will be enabled by default in 3.0. 2479 2480 *Bernd Edlinger* 2481 2482### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2483 2484 * Revert the change of EOF detection while reading in libssl to avoid 2485 regressions in applications depending on the current way of reporting 2486 the EOF. As the existing method is not fully accurate the change to 2487 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2488 branch and will be present in the 3.0 release. 2489 2490 *Tomáš Mráz* 2491 2492 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2493 when primes for RSA keys are computed. 2494 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2495 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2496 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2497 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2498 This avoids possible fingerprinting of newly generated RSA modules. 2499 2500 *Bernd Edlinger* 2501 2502### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2503 2504 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2505 while reading in libssl then we would report an error back to the 2506 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2507 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2508 therefore give a hint as to what went wrong. 2509 2510 *Matt Caswell* 2511 2512 * Check that ed25519 and ed448 are allowed by the security level. Previously 2513 signature algorithms not using an MD were not being checked that they were 2514 allowed by the security level. 2515 2516 *Kurt Roeckx* 2517 2518 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2519 was not quite right. The behaviour was not consistent between resumption 2520 and normal handshakes, and also not quite consistent with historical 2521 behaviour. The behaviour in various scenarios has been clarified and 2522 it has been updated to make it match historical behaviour as closely as 2523 possible. 2524 2525 *Matt Caswell* 2526 2527 * *[VMS only]* The header files that the VMS compilers include automatically, 2528 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2529 that the C++ compiler doesn't understand. This is a shortcoming in the 2530 compiler, but can be worked around with `__cplusplus` guards. 2531 2532 C++ applications that use OpenSSL libraries must be compiled using the 2533 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2534 functions. Otherwise, only functions with symbols of less than 31 2535 characters can be used, as the linker will not be able to successfully 2536 resolve symbols with longer names. 2537 2538 *Richard Levitte* 2539 2540 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2541 The presence of this system service is determined at run-time. 2542 2543 *Richard Levitte* 2544 2545 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2546 the first value. 2547 2548 *Jon Spillett* 2549 2550### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2551 2552 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2553 number generator (RNG). This was intended to include protection in the 2554 event of a fork() system call in order to ensure that the parent and child 2555 processes did not share the same RNG state. However this protection was not 2556 being used in the default case. 2557 2558 A partial mitigation for this issue is that the output from a high 2559 precision timer is mixed into the RNG state so the likelihood of a parent 2560 and child process sharing state is significantly reduced. 2561 2562 If an application already calls OPENSSL_init_crypto() explicitly using 2563 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2564 ([CVE-2019-1549]) 2565 2566 *Matthias St. Pierre* 2567 2568 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2569 used even when parsing explicit parameters, when loading a encoded key 2570 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2571 `EC_GROUP_new_from_ecparameters()`. 2572 This prevents bypass of security hardening and performance gains, 2573 especially for curves with specialized EC_METHODs. 2574 By default, if a key encoded with explicit parameters is loaded and later 2575 encoded, the output is still encoded with explicit parameters, even if 2576 internally a "named" EC_GROUP is used for computation. 2577 2578 *Nicola Tuveri* 2579 2580 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2581 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2582 NULL. After this change, only the cofactor parameter can be NULL. It also 2583 does some minimal sanity checks on the passed order. 2584 ([CVE-2019-1547]) 2585 2586 *Billy Bob Brumley* 2587 2588 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2589 An attack is simple, if the first CMS_recipientInfo is valid but the 2590 second CMS_recipientInfo is chosen ciphertext. If the second 2591 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2592 encryption key will be replaced by garbage, and the message cannot be 2593 decoded, but if the RSA decryption fails, the correct encryption key is 2594 used and the recipient will not notice the attack. 2595 As a work around for this potential attack the length of the decrypted 2596 key must be equal to the cipher default key length, in case the 2597 certifiate is not given and all recipientInfo are tried out. 2598 The old behaviour can be re-enabled in the CMS code by setting the 2599 CMS_DEBUG_DECRYPT flag. 2600 ([CVE-2019-1563]) 2601 2602 *Bernd Edlinger* 2603 2604 * Early start up entropy quality from the DEVRANDOM seed source has been 2605 improved for older Linux systems. The RAND subsystem will wait for 2606 /dev/random to be producing output before seeding from /dev/urandom. 2607 The seeded state is stored for future library initialisations using 2608 a system global shared memory segment. The shared memory identifier 2609 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2610 the desired value. The default identifier is 114. 2611 2612 *Paul Dale* 2613 2614 * Correct the extended master secret constant on EBCDIC systems. Without this 2615 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2616 negotiate EMS will fail. Unfortunately this also means that TLS connections 2617 between EBCDIC systems with this fix, and EBCDIC systems without this 2618 fix will fail if they negotiate EMS. 2619 2620 *Matt Caswell* 2621 2622 * Use Windows installation paths in the mingw builds 2623 2624 Mingw isn't a POSIX environment per se, which means that Windows 2625 paths should be used for installation. 2626 ([CVE-2019-1552]) 2627 2628 *Richard Levitte* 2629 2630 * Changed DH_check to accept parameters with order q and 2q subgroups. 2631 With order 2q subgroups the bit 0 of the private key is not secret 2632 but DH_generate_key works around that by clearing bit 0 of the 2633 private key for those. This avoids leaking bit 0 of the private key. 2634 2635 *Bernd Edlinger* 2636 2637 * Significantly reduce secure memory usage by the randomness pools. 2638 2639 *Paul Dale* 2640 2641 * Revert the DEVRANDOM_WAIT feature for Linux systems 2642 2643 The DEVRANDOM_WAIT feature added a select() call to wait for the 2644 /dev/random device to become readable before reading from the 2645 /dev/urandom device. 2646 2647 It turned out that this change had negative side effects on 2648 performance which were not acceptable. After some discussion it 2649 was decided to revert this feature and leave it up to the OS 2650 resp. the platform maintainer to ensure a proper initialization 2651 during early boot time. 2652 2653 *Matthias St. Pierre* 2654 2655### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2656 2657 * Add build tests for C++. These are generated files that only do one 2658 thing, to include one public OpenSSL head file each. This tests that 2659 the public header files can be usefully included in a C++ application. 2660 2661 This test isn't enabled by default. It can be enabled with the option 2662 'enable-buildtest-c++'. 2663 2664 *Richard Levitte* 2665 2666 * Enable SHA3 pre-hashing for ECDSA and DSA. 2667 2668 *Patrick Steuer* 2669 2670 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2671 This changes the size when using the `genpkey` command when no size is given. 2672 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2673 generation commands to use 2048 bits by default. 2674 2675 *Kurt Roeckx* 2676 2677 * Reorganize the manual pages to consistently have RETURN VALUES, 2678 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2679 util/fix-doc-nits accordingly. 2680 2681 *Paul Yang, Joshua Lock* 2682 2683 * Add the missing accessor EVP_PKEY_get0_engine() 2684 2685 *Matt Caswell* 2686 2687 * Have commands like `s_client` and `s_server` output the signature scheme 2688 along with other cipher suite parameters when debugging. 2689 2690 *Lorinczy Zsigmond* 2691 2692 * Make OPENSSL_config() error agnostic again. 2693 2694 *Richard Levitte* 2695 2696 * Do the error handling in RSA decryption constant time. 2697 2698 *Bernd Edlinger* 2699 2700 * Prevent over long nonces in ChaCha20-Poly1305. 2701 2702 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2703 for every encryption operation. RFC 7539 specifies that the nonce value 2704 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2705 and front pads the nonce with 0 bytes if it is less than 12 2706 bytes. However it also incorrectly allows a nonce to be set of up to 16 2707 bytes. In this case only the last 12 bytes are significant and any 2708 additional leading bytes are ignored. 2709 2710 It is a requirement of using this cipher that nonce values are 2711 unique. Messages encrypted using a reused nonce value are susceptible to 2712 serious confidentiality and integrity attacks. If an application changes 2713 the default nonce length to be longer than 12 bytes and then makes a 2714 change to the leading bytes of the nonce expecting the new value to be a 2715 new unique nonce then such an application could inadvertently encrypt 2716 messages with a reused nonce. 2717 2718 Additionally the ignored bytes in a long nonce are not covered by the 2719 integrity guarantee of this cipher. Any application that relies on the 2720 integrity of these ignored leading bytes of a long nonce may be further 2721 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2722 is safe because no such use sets such a long nonce value. However user 2723 applications that use this cipher directly and set a non-default nonce 2724 length to be longer than 12 bytes may be vulnerable. 2725 2726 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2727 Greef of Ronomon. 2728 ([CVE-2019-1543]) 2729 2730 *Matt Caswell* 2731 2732 * Add DEVRANDOM_WAIT feature for Linux systems 2733 2734 On older Linux systems where the getrandom() system call is not available, 2735 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2736 Contrary to getrandom(), the /dev/urandom device will not block during 2737 early boot when the kernel CSPRNG has not been seeded yet. 2738 2739 To mitigate this known weakness, use select() to wait for /dev/random to 2740 become readable before reading from /dev/urandom. 2741 2742 * Ensure that SM2 only uses SM3 as digest algorithm 2743 2744 *Paul Yang* 2745 2746### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2747 2748 * Change the info callback signals for the start and end of a post-handshake 2749 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2750 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2751 confused by this and assume that a TLSv1.2 renegotiation has started. This 2752 can break KeyUpdate handling. Instead we no longer signal the start and end 2753 of a post handshake message exchange (although the messages themselves are 2754 still signalled). This could break some applications that were expecting 2755 the old signals. However without this KeyUpdate is not usable for many 2756 applications. 2757 2758 *Matt Caswell* 2759 2760### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2761 2762 * Timing vulnerability in DSA signature generation 2763 2764 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2765 timing side channel attack. An attacker could use variations in the signing 2766 algorithm to recover the private key. 2767 2768 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2769 ([CVE-2018-0734]) 2770 2771 *Paul Dale* 2772 2773 * Timing vulnerability in ECDSA signature generation 2774 2775 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2776 timing side channel attack. An attacker could use variations in the signing 2777 algorithm to recover the private key. 2778 2779 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2780 ([CVE-2018-0735]) 2781 2782 *Paul Dale* 2783 2784 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2785 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2786 of two gigabytes and the error handling improved. 2787 2788 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 2789 categorized as a normal bug, not a security issue, because the DRBG reseeds 2790 automatically and is fully functional even without additional randomness 2791 provided by the application. 2792 2793### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 2794 2795 * Add a new ClientHello callback. Provides a callback interface that gives 2796 the application the ability to adjust the nascent SSL object at the 2797 earliest stage of ClientHello processing, immediately after extensions have 2798 been collected but before they have been processed. In particular, this 2799 callback can adjust the supported TLS versions in response to the contents 2800 of the ClientHello 2801 2802 *Benjamin Kaduk* 2803 2804 * Add SM2 base algorithm support. 2805 2806 *Jack Lloyd* 2807 2808 * s390x assembly pack: add (improved) hardware-support for the following 2809 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 2810 aes-cfb/cfb8, aes-ecb. 2811 2812 *Patrick Steuer* 2813 2814 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 2815 parameter is no longer accepted, as it leads to a corrupt table. NULL 2816 pem_str is reserved for alias entries only. 2817 2818 *Richard Levitte* 2819 2820 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2821 step for prime curves. The new implementation is based on formulae from 2822 differential addition-and-doubling in homogeneous projective coordinates 2823 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 2824 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 2825 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 2826 to work in projective coordinates. 2827 2828 *Billy Bob Brumley, Nicola Tuveri* 2829 2830 * Change generating and checking of primes so that the error rate of not 2831 being prime depends on the intended use based on the size of the input. 2832 For larger primes this will result in more rounds of Miller-Rabin. 2833 The maximal error rate for primes with more than 1080 bits is lowered 2834 to 2^-128. 2835 2836 *Kurt Roeckx, Annie Yousar* 2837 2838 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 2839 2840 *Kurt Roeckx* 2841 2842 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 2843 moving between systems, and to avoid confusion when a Windows build is 2844 done with mingw vs with MSVC. For POSIX installs, there's still a 2845 symlink or copy named 'tsget' to avoid that confusion as well. 2846 2847 *Richard Levitte* 2848 2849 * Revert blinding in ECDSA sign and instead make problematic addition 2850 length-invariant. Switch even to fixed-length Montgomery multiplication. 2851 2852 *Andy Polyakov* 2853 2854 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2855 step for binary curves. The new implementation is based on formulae from 2856 differential addition-and-doubling in mixed Lopez-Dahab projective 2857 coordinates, modified to independently blind the operands. 2858 2859 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2860 2861 * Add a scaffold to optionally enhance the Montgomery ladder implementation 2862 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 2863 EC_METHODs to implement their own specialized "ladder step", to take 2864 advantage of more favorable coordinate systems or more efficient 2865 differential addition-and-doubling algorithms. 2866 2867 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2868 2869 * Modified the random device based seed sources to keep the relevant 2870 file descriptors open rather than reopening them on each access. 2871 This allows such sources to operate in a chroot() jail without 2872 the associated device nodes being available. This behaviour can be 2873 controlled using RAND_keep_random_devices_open(). 2874 2875 *Paul Dale* 2876 2877 * Numerous side-channel attack mitigations have been applied. This may have 2878 performance impacts for some algorithms for the benefit of improved 2879 security. Specific changes are noted in this change log by their respective 2880 authors. 2881 2882 *Matt Caswell* 2883 2884 * AIX shared library support overhaul. Switch to AIX "natural" way of 2885 handling shared libraries, which means collecting shared objects of 2886 different versions and bitnesses in one common archive. This allows to 2887 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 2888 doesn't affect the way 3rd party applications are linked, only how 2889 multi-version installation is managed. 2890 2891 *Andy Polyakov* 2892 2893 * Make ec_group_do_inverse_ord() more robust and available to other 2894 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 2895 mitigations are applied to the fallback BN_mod_inverse(). 2896 When using this function rather than BN_mod_inverse() directly, new 2897 EC cryptosystem implementations are then safer-by-default. 2898 2899 *Billy Bob Brumley* 2900 2901 * Add coordinate blinding for EC_POINT and implement projective 2902 coordinate blinding for generic prime curves as a countermeasure to 2903 chosen point SCA attacks. 2904 2905 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 2906 2907 * Add blinding to ECDSA and DSA signatures to protect against side channel 2908 attacks discovered by Keegan Ryan (NCC Group). 2909 2910 *Matt Caswell* 2911 2912 * Enforce checking in the `pkeyutl` command to ensure that the input 2913 length does not exceed the maximum supported digest length when performing 2914 a sign, verify or verifyrecover operation. 2915 2916 *Matt Caswell* 2917 2918 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 2919 I/O in combination with something like select() or poll() will hang. This 2920 can be turned off again using SSL_CTX_clear_mode(). 2921 Many applications do not properly handle non-application data records, and 2922 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 2923 around the problems in those applications, but can also break some. 2924 It's recommended to read the manpages about SSL_read(), SSL_write(), 2925 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 2926 SSL_CTX_set_read_ahead() again. 2927 2928 *Kurt Roeckx* 2929 2930 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 2931 now allow empty (zero character) pass phrases. 2932 2933 *Richard Levitte* 2934 2935 * Apply blinding to binary field modular inversion and remove patent 2936 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 2937 2938 *Billy Bob Brumley* 2939 2940 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 2941 binary and prime elliptic curves. 2942 2943 *Billy Bob Brumley* 2944 2945 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 2946 constant time fixed point multiplication. 2947 2948 *Billy Bob Brumley* 2949 2950 * Revise elliptic curve scalar multiplication with timing attack 2951 defenses: ec_wNAF_mul redirects to a constant time implementation 2952 when computing fixed point and variable point multiplication (which 2953 in OpenSSL are mostly used with secret scalars in keygen, sign, 2954 ECDH derive operations). 2955 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 2956 Sohaib ul Hassan* 2957 2958 * Updated CONTRIBUTING 2959 2960 *Rich Salz* 2961 2962 * Updated DRBG / RAND to request nonce and additional low entropy 2963 randomness from the system. 2964 2965 *Matthias St. Pierre* 2966 2967 * Updated 'openssl rehash' to use OpenSSL consistent default. 2968 2969 *Richard Levitte* 2970 2971 * Moved the load of the ssl_conf module to libcrypto, which helps 2972 loading engines that libssl uses before libssl is initialised. 2973 2974 *Matt Caswell* 2975 2976 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 2977 2978 *Matt Caswell* 2979 2980 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 2981 2982 *Ingo Schwarze, Rich Salz* 2983 2984 * Added output of accepting IP address and port for 'openssl s_server' 2985 2986 *Richard Levitte* 2987 2988 * Added a new API for TLSv1.3 ciphersuites: 2989 SSL_CTX_set_ciphersuites() 2990 SSL_set_ciphersuites() 2991 2992 *Matt Caswell* 2993 2994 * Memory allocation failures consistently add an error to the error 2995 stack. 2996 2997 *Rich Salz* 2998 2999 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 3000 in libcrypto when run as setuid/setgid. 3001 3002 *Bernd Edlinger* 3003 3004 * Load any config file by default when libssl is used. 3005 3006 *Matt Caswell* 3007 3008 * Added new public header file <openssl/rand_drbg.h> and documentation 3009 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 3010 3011 *Matthias St. Pierre* 3012 3013 * QNX support removed (cannot find contributors to get their approval 3014 for the license change). 3015 3016 *Rich Salz* 3017 3018 * TLSv1.3 replay protection for early data has been implemented. See the 3019 SSL_read_early_data() man page for further details. 3020 3021 *Matt Caswell* 3022 3023 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 3024 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 3025 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 3026 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 3027 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 3028 configuration has been separated out. See the ciphers man page or the 3029 SSL_CTX_set_ciphersuites() man page for more information. 3030 3031 *Matt Caswell* 3032 3033 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 3034 in responder mode now supports the new "-multi" option, which 3035 spawns the specified number of child processes to handle OCSP 3036 requests. The "-timeout" option now also limits the OCSP 3037 responder's patience to wait to receive the full client request 3038 on a newly accepted connection. Child processes are respawned 3039 as needed, and the CA index file is automatically reloaded 3040 when changed. This makes it possible to run the "ocsp" responder 3041 as a long-running service, making the OpenSSL CA somewhat more 3042 feature-complete. In this mode, most diagnostic messages logged 3043 after entering the event loop are logged via syslog(3) rather than 3044 written to stderr. 3045 3046 *Viktor Dukhovni* 3047 3048 * Added support for X448 and Ed448. Heavily based on original work by 3049 Mike Hamburg. 3050 3051 *Matt Caswell* 3052 3053 * Extend OSSL_STORE with capabilities to search and to narrow the set of 3054 objects loaded. This adds the functions OSSL_STORE_expect() and 3055 OSSL_STORE_find() as well as needed tools to construct searches and 3056 get the search data out of them. 3057 3058 *Richard Levitte* 3059 3060 * Support for TLSv1.3 added. Note that users upgrading from an earlier 3061 version of OpenSSL should review their configuration settings to ensure 3062 that they are still appropriate for TLSv1.3. For further information see: 3063 <https://wiki.openssl.org/index.php/TLS1.3> 3064 3065 *Matt Caswell* 3066 3067 * Grand redesign of the OpenSSL random generator 3068 3069 The default RAND method now utilizes an AES-CTR DRBG according to 3070 NIST standard SP 800-90Ar1. The new random generator is essentially 3071 a port of the default random generator from the OpenSSL FIPS 2.0 3072 object module. It is a hybrid deterministic random bit generator 3073 using an AES-CTR bit stream and which seeds and reseeds itself 3074 automatically using trusted system entropy sources. 3075 3076 Some of its new features are: 3077 - Support for multiple DRBG instances with seed chaining. 3078 - The default RAND method makes use of a DRBG. 3079 - There is a public and private DRBG instance. 3080 - The DRBG instances are fork-safe. 3081 - Keep all global DRBG instances on the secure heap if it is enabled. 3082 - The public and private DRBG instance are per thread for lock free 3083 operation 3084 3085 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 3086 3087 * Changed Configure so it only says what it does and doesn't dump 3088 so much data. Instead, ./configdata.pm should be used as a script 3089 to display all sorts of configuration data. 3090 3091 *Richard Levitte* 3092 3093 * Added processing of "make variables" to Configure. 3094 3095 *Richard Levitte* 3096 3097 * Added SHA512/224 and SHA512/256 algorithm support. 3098 3099 *Paul Dale* 3100 3101 * The last traces of Netware support, first removed in 1.1.0, have 3102 now been removed. 3103 3104 *Rich Salz* 3105 3106 * Get rid of Makefile.shared, and in the process, make the processing 3107 of certain files (rc.obj, or the .def/.map/.opt files produced from 3108 the ordinal files) more visible and hopefully easier to trace and 3109 debug (or make silent). 3110 3111 *Richard Levitte* 3112 3113 * Make it possible to have environment variable assignments as 3114 arguments to config / Configure. 3115 3116 *Richard Levitte* 3117 3118 * Add multi-prime RSA (RFC 8017) support. 3119 3120 *Paul Yang* 3121 3122 * Add SM3 implemented according to GB/T 32905-2016 3123 *Jack Lloyd <jack.lloyd@ribose.com>,* 3124 *Ronald Tse <ronald.tse@ribose.com>,* 3125 *Erick Borsboom <erick.borsboom@ribose.com>* 3126 3127 * Add 'Maximum Fragment Length' TLS extension negotiation and support 3128 as documented in RFC6066. 3129 Based on a patch from Tomasz Moń 3130 3131 *Filipe Raimundo da Silva* 3132 3133 * Add SM4 implemented according to GB/T 32907-2016. 3134 *Jack Lloyd <jack.lloyd@ribose.com>,* 3135 *Ronald Tse <ronald.tse@ribose.com>,* 3136 *Erick Borsboom <erick.borsboom@ribose.com>* 3137 3138 * Reimplement -newreq-nodes and ERR_error_string_n; the 3139 original author does not agree with the license change. 3140 3141 *Rich Salz* 3142 3143 * Add ARIA AEAD TLS support. 3144 3145 *Jon Spillett* 3146 3147 * Some macro definitions to support VS6 have been removed. Visual 3148 Studio 6 has not worked since 1.1.0 3149 3150 *Rich Salz* 3151 3152 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 3153 without clearing the errors. 3154 3155 *Richard Levitte* 3156 3157 * Add "atfork" functions. If building on a system that without 3158 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 3159 requirements. The RAND facility now uses/requires this. 3160 3161 *Rich Salz* 3162 3163 * Add SHA3. 3164 3165 *Andy Polyakov* 3166 3167 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3168 not possible to disable entirely. However, it's still possible to 3169 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3170 as a fallback). 3171 3172 To disable, configure with 'no-ui-console'. 'no-ui' is still 3173 possible to use as an alias. Check at compile time with the 3174 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3175 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3176 3177 *Richard Levitte* 3178 3179 * Add a STORE module, which implements a uniform and URI based reader of 3180 stores that can contain keys, certificates, CRLs and numerous other 3181 objects. The main API is loosely based on a few stdio functions, 3182 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3183 OSSL_STORE_error and OSSL_STORE_close. 3184 The implementation uses backends called "loaders" to implement arbitrary 3185 URI schemes. There is one built in "loader" for the 'file' scheme. 3186 3187 *Richard Levitte* 3188 3189 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3190 then adjusted to work on FreeBSD 8.4 as well. 3191 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3192 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3193 3194 *Richard Levitte* 3195 3196 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3197 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3198 error code calls like this: 3199 3200 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3201 3202 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3203 that can be encoded in C. For the foreseeable future, this will only 3204 affect new modules. 3205 3206 *Richard Levitte and Tim Hudson* 3207 3208 * Removed BSD cryptodev engine. 3209 3210 *Rich Salz* 3211 3212 * Add a build target 'build_all_generated', to build all generated files 3213 and only that. This can be used to prepare everything that requires 3214 things like perl for a system that lacks perl and then move everything 3215 to that system and do the rest of the build there. 3216 3217 *Richard Levitte* 3218 3219 * In the UI interface, make it possible to duplicate the user data. This 3220 can be used by engines that need to retain the data for a longer time 3221 than just the call where this user data is passed. 3222 3223 *Richard Levitte* 3224 3225 * Ignore the '-named_curve auto' value for compatibility of applications 3226 with OpenSSL 1.0.2. 3227 3228 *Tomáš Mráz <tmraz@fedoraproject.org>* 3229 3230 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3231 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3232 alerts across multiple records (some of which could be empty). In practice 3233 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3234 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3235 support this at all. Supporting it adds significant complexity to the 3236 record layer, and its removal is unlikely to cause interoperability 3237 issues. 3238 3239 *Matt Caswell* 3240 3241 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3242 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3243 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3244 in OpenSSL 1.2.0. 3245 3246 *Richard Levitte* 3247 3248 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3249 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3250 3251 *Richard Levitte, Andy Polyakov* 3252 3253 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3254 does for RSA, etc. 3255 3256 *Richard Levitte* 3257 3258 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3259 platform rather than 'mingw'. 3260 3261 *Richard Levitte* 3262 3263 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3264 success if they are asked to add an object which already exists 3265 in the store. This change cascades to other functions which load 3266 certificates and CRLs. 3267 3268 *Paul Dale* 3269 3270 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3271 facilitate stack unwinding even from assembly subroutines. 3272 3273 *Andy Polyakov* 3274 3275 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3276 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3277 3278 *Richard Levitte* 3279 3280 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3281 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3282 which is the minimum version we support. 3283 3284 *Richard Levitte* 3285 3286 * Certificate time validation (X509_cmp_time) enforces stricter 3287 compliance with RFC 5280. Fractional seconds and timezone offsets 3288 are no longer allowed. 3289 3290 *Emilia Käsper* 3291 3292 * Add support for ARIA 3293 3294 *Paul Dale* 3295 3296 * s_client will now send the Server Name Indication (SNI) extension by 3297 default unless the new "-noservername" option is used. The server name is 3298 based on the host provided to the "-connect" option unless overridden by 3299 using "-servername". 3300 3301 *Matt Caswell* 3302 3303 * Add support for SipHash 3304 3305 *Todd Short* 3306 3307 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3308 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3309 prevent issues where no progress is being made and the peer continually 3310 sends unrecognised record types, using up resources processing them. 3311 3312 *Matt Caswell* 3313 3314 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3315 using the algorithm defined in 3316 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3317 3318 *Richard Levitte* 3319 3320 * Heartbeat support has been removed; the ABI is changed for now. 3321 3322 *Richard Levitte, Rich Salz* 3323 3324 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3325 3326 *Emilia Käsper* 3327 3328 * The RSA "null" method, which was partially supported to avoid patent 3329 issues, has been replaced to always returns NULL. 3330 3331 *Rich Salz* 3332 3333OpenSSL 1.1.0 3334------------- 3335 3336### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3337 3338 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3339 used even when parsing explicit parameters, when loading a encoded key 3340 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3341 `EC_GROUP_new_from_ecparameters()`. 3342 This prevents bypass of security hardening and performance gains, 3343 especially for curves with specialized EC_METHODs. 3344 By default, if a key encoded with explicit parameters is loaded and later 3345 encoded, the output is still encoded with explicit parameters, even if 3346 internally a "named" EC_GROUP is used for computation. 3347 3348 *Nicola Tuveri* 3349 3350 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3351 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3352 NULL. After this change, only the cofactor parameter can be NULL. It also 3353 does some minimal sanity checks on the passed order. 3354 ([CVE-2019-1547]) 3355 3356 *Billy Bob Brumley* 3357 3358 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3359 An attack is simple, if the first CMS_recipientInfo is valid but the 3360 second CMS_recipientInfo is chosen ciphertext. If the second 3361 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3362 encryption key will be replaced by garbage, and the message cannot be 3363 decoded, but if the RSA decryption fails, the correct encryption key is 3364 used and the recipient will not notice the attack. 3365 As a work around for this potential attack the length of the decrypted 3366 key must be equal to the cipher default key length, in case the 3367 certifiate is not given and all recipientInfo are tried out. 3368 The old behaviour can be re-enabled in the CMS code by setting the 3369 CMS_DEBUG_DECRYPT flag. 3370 ([CVE-2019-1563]) 3371 3372 *Bernd Edlinger* 3373 3374 * Use Windows installation paths in the mingw builds 3375 3376 Mingw isn't a POSIX environment per se, which means that Windows 3377 paths should be used for installation. 3378 ([CVE-2019-1552]) 3379 3380 *Richard Levitte* 3381 3382### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3383 3384 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3385 This changes the size when using the `genpkey` command when no size is given. 3386 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3387 generation commands to use 2048 bits by default. 3388 3389 *Kurt Roeckx* 3390 3391 * Prevent over long nonces in ChaCha20-Poly1305. 3392 3393 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3394 for every encryption operation. RFC 7539 specifies that the nonce value 3395 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3396 and front pads the nonce with 0 bytes if it is less than 12 3397 bytes. However it also incorrectly allows a nonce to be set of up to 16 3398 bytes. In this case only the last 12 bytes are significant and any 3399 additional leading bytes are ignored. 3400 3401 It is a requirement of using this cipher that nonce values are 3402 unique. Messages encrypted using a reused nonce value are susceptible to 3403 serious confidentiality and integrity attacks. If an application changes 3404 the default nonce length to be longer than 12 bytes and then makes a 3405 change to the leading bytes of the nonce expecting the new value to be a 3406 new unique nonce then such an application could inadvertently encrypt 3407 messages with a reused nonce. 3408 3409 Additionally the ignored bytes in a long nonce are not covered by the 3410 integrity guarantee of this cipher. Any application that relies on the 3411 integrity of these ignored leading bytes of a long nonce may be further 3412 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3413 is safe because no such use sets such a long nonce value. However user 3414 applications that use this cipher directly and set a non-default nonce 3415 length to be longer than 12 bytes may be vulnerable. 3416 3417 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3418 Greef of Ronomon. 3419 ([CVE-2019-1543]) 3420 3421 *Matt Caswell* 3422 3423 * Added SCA hardening for modular field inversion in EC_GROUP through 3424 a new dedicated field_inv() pointer in EC_METHOD. 3425 This also addresses a leakage affecting conversions from projective 3426 to affine coordinates. 3427 3428 *Billy Bob Brumley, Nicola Tuveri* 3429 3430 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3431 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3432 3433 *Bernd Edlinger* 3434 3435 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3436 3437 *Richard Levitte* 3438 3439 * Remove the 'dist' target and add a tarball building script. The 3440 'dist' target has fallen out of use, and it shouldn't be 3441 necessary to configure just to create a source distribution. 3442 3443 *Richard Levitte* 3444 3445### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3446 3447 * Timing vulnerability in DSA signature generation 3448 3449 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3450 timing side channel attack. An attacker could use variations in the signing 3451 algorithm to recover the private key. 3452 3453 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3454 ([CVE-2018-0734]) 3455 3456 *Paul Dale* 3457 3458 * Timing vulnerability in ECDSA signature generation 3459 3460 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3461 timing side channel attack. An attacker could use variations in the signing 3462 algorithm to recover the private key. 3463 3464 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3465 ([CVE-2018-0735]) 3466 3467 *Paul Dale* 3468 3469 * Add coordinate blinding for EC_POINT and implement projective 3470 coordinate blinding for generic prime curves as a countermeasure to 3471 chosen point SCA attacks. 3472 3473 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3474 3475### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3476 3477 * Client DoS due to large DH parameter 3478 3479 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3480 malicious server can send a very large prime value to the client. This will 3481 cause the client to spend an unreasonably long period of time generating a 3482 key for this prime resulting in a hang until the client has finished. This 3483 could be exploited in a Denial Of Service attack. 3484 3485 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3486 ([CVE-2018-0732]) 3487 3488 *Guido Vranken* 3489 3490 * Cache timing vulnerability in RSA Key Generation 3491 3492 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3493 a cache timing side channel attack. An attacker with sufficient access to 3494 mount cache timing attacks during the RSA key generation process could 3495 recover the private key. 3496 3497 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3498 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3499 ([CVE-2018-0737]) 3500 3501 *Billy Brumley* 3502 3503 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3504 parameter is no longer accepted, as it leads to a corrupt table. NULL 3505 pem_str is reserved for alias entries only. 3506 3507 *Richard Levitte* 3508 3509 * Revert blinding in ECDSA sign and instead make problematic addition 3510 length-invariant. Switch even to fixed-length Montgomery multiplication. 3511 3512 *Andy Polyakov* 3513 3514 * Change generating and checking of primes so that the error rate of not 3515 being prime depends on the intended use based on the size of the input. 3516 For larger primes this will result in more rounds of Miller-Rabin. 3517 The maximal error rate for primes with more than 1080 bits is lowered 3518 to 2^-128. 3519 3520 *Kurt Roeckx, Annie Yousar* 3521 3522 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3523 3524 *Kurt Roeckx* 3525 3526 * Add blinding to ECDSA and DSA signatures to protect against side channel 3527 attacks discovered by Keegan Ryan (NCC Group). 3528 3529 *Matt Caswell* 3530 3531 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3532 now allow empty (zero character) pass phrases. 3533 3534 *Richard Levitte* 3535 3536 * Certificate time validation (X509_cmp_time) enforces stricter 3537 compliance with RFC 5280. Fractional seconds and timezone offsets 3538 are no longer allowed. 3539 3540 *Emilia Käsper* 3541 3542 * Fixed a text canonicalisation bug in CMS 3543 3544 Where a CMS detached signature is used with text content the text goes 3545 through a canonicalisation process first prior to signing or verifying a 3546 signature. This process strips trailing space at the end of lines, converts 3547 line terminators to CRLF and removes additional trailing line terminators 3548 at the end of a file. A bug in the canonicalisation process meant that 3549 some characters, such as form-feed, were incorrectly treated as whitespace 3550 and removed. This is contrary to the specification (RFC5485). This fix 3551 could mean that detached text data signed with an earlier version of 3552 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3553 signed with a fixed OpenSSL may fail to verify with an earlier version of 3554 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3555 and use the "-binary" flag (for the "cms" command line application) or set 3556 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3557 3558 *Matt Caswell* 3559 3560### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3561 3562 * Constructed ASN.1 types with a recursive definition could exceed the stack 3563 3564 Constructed ASN.1 types with a recursive definition (such as can be found 3565 in PKCS7) could eventually exceed the stack given malicious input with 3566 excessive recursion. This could result in a Denial Of Service attack. There 3567 are no such structures used within SSL/TLS that come from untrusted sources 3568 so this is considered safe. 3569 3570 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3571 project. 3572 ([CVE-2018-0739]) 3573 3574 *Matt Caswell* 3575 3576 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3577 3578 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3579 effectively reduced to only comparing the least significant bit of each 3580 byte. This allows an attacker to forge messages that would be considered as 3581 authenticated in an amount of tries lower than that guaranteed by the 3582 security claims of the scheme. The module can only be compiled by the 3583 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3584 3585 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3586 (IBM). 3587 ([CVE-2018-0733]) 3588 3589 *Andy Polyakov* 3590 3591 * Add a build target 'build_all_generated', to build all generated files 3592 and only that. This can be used to prepare everything that requires 3593 things like perl for a system that lacks perl and then move everything 3594 to that system and do the rest of the build there. 3595 3596 *Richard Levitte* 3597 3598 * Backport SSL_OP_NO_RENGOTIATION 3599 3600 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3601 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3602 changes this is no longer possible in 1.1.0. Therefore the new 3603 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3604 1.1.0 to provide equivalent functionality. 3605 3606 Note that if an application built against 1.1.0h headers (or above) is run 3607 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3608 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3609 3610 *Matt Caswell* 3611 3612 * Removed the OS390-Unix config target. It relied on a script that doesn't 3613 exist. 3614 3615 *Rich Salz* 3616 3617 * rsaz_1024_mul_avx2 overflow bug on x86_64 3618 3619 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3620 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3621 Analysis suggests that attacks against RSA and DSA as a result of this 3622 defect would be very difficult to perform and are not believed likely. 3623 Attacks against DH1024 are considered just feasible, because most of the 3624 work necessary to deduce information about a private key may be performed 3625 offline. The amount of resources required for such an attack would be 3626 significant. However, for an attack on TLS to be meaningful, the server 3627 would have to share the DH1024 private key among multiple clients, which is 3628 no longer an option since CVE-2016-0701. 3629 3630 This only affects processors that support the AVX2 but not ADX extensions 3631 like Intel Haswell (4th generation). 3632 3633 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3634 was originally found via the OSS-Fuzz project. 3635 ([CVE-2017-3738]) 3636 3637 *Andy Polyakov* 3638 3639### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3640 3641 * bn_sqrx8x_internal carry bug on x86_64 3642 3643 There is a carry propagating bug in the x86_64 Montgomery squaring 3644 procedure. No EC algorithms are affected. Analysis suggests that attacks 3645 against RSA and DSA as a result of this defect would be very difficult to 3646 perform and are not believed likely. Attacks against DH are considered just 3647 feasible (although very difficult) because most of the work necessary to 3648 deduce information about a private key may be performed offline. The amount 3649 of resources required for such an attack would be very significant and 3650 likely only accessible to a limited number of attackers. An attacker would 3651 additionally need online access to an unpatched system using the target 3652 private key in a scenario with persistent DH parameters and a private 3653 key that is shared between multiple clients. 3654 3655 This only affects processors that support the BMI1, BMI2 and ADX extensions 3656 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3657 3658 This issue was reported to OpenSSL by the OSS-Fuzz project. 3659 ([CVE-2017-3736]) 3660 3661 *Andy Polyakov* 3662 3663 * Malformed X.509 IPAddressFamily could cause OOB read 3664 3665 If an X.509 certificate has a malformed IPAddressFamily extension, 3666 OpenSSL could do a one-byte buffer overread. The most likely result 3667 would be an erroneous display of the certificate in text format. 3668 3669 This issue was reported to OpenSSL by the OSS-Fuzz project. 3670 ([CVE-2017-3735]) 3671 3672 *Rich Salz* 3673 3674### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3675 3676 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3677 platform rather than 'mingw'. 3678 3679 *Richard Levitte* 3680 3681 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3682 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3683 which is the minimum version we support. 3684 3685 *Richard Levitte* 3686 3687### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3688 3689 * Encrypt-Then-Mac renegotiation crash 3690 3691 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3692 negotiated where it was not in the original handshake (or vice-versa) then 3693 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3694 and servers are affected. 3695 3696 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3697 ([CVE-2017-3733]) 3698 3699 *Matt Caswell* 3700 3701### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3702 3703 * Truncated packet could crash via OOB read 3704 3705 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3706 cipher is being used, then a truncated packet can cause that host to 3707 perform an out-of-bounds read, usually resulting in a crash. 3708 3709 This issue was reported to OpenSSL by Robert Święcki of Google. 3710 ([CVE-2017-3731]) 3711 3712 *Andy Polyakov* 3713 3714 * Bad (EC)DHE parameters cause a client crash 3715 3716 If a malicious server supplies bad parameters for a DHE or ECDHE key 3717 exchange then this can result in the client attempting to dereference a 3718 NULL pointer leading to a client crash. This could be exploited in a Denial 3719 of Service attack. 3720 3721 This issue was reported to OpenSSL by Guido Vranken. 3722 ([CVE-2017-3730]) 3723 3724 *Matt Caswell* 3725 3726 * BN_mod_exp may produce incorrect results on x86_64 3727 3728 There is a carry propagating bug in the x86_64 Montgomery squaring 3729 procedure. No EC algorithms are affected. Analysis suggests that attacks 3730 against RSA and DSA as a result of this defect would be very difficult to 3731 perform and are not believed likely. Attacks against DH are considered just 3732 feasible (although very difficult) because most of the work necessary to 3733 deduce information about a private key may be performed offline. The amount 3734 of resources required for such an attack would be very significant and 3735 likely only accessible to a limited number of attackers. An attacker would 3736 additionally need online access to an unpatched system using the target 3737 private key in a scenario with persistent DH parameters and a private 3738 key that is shared between multiple clients. For example this can occur by 3739 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3740 similar to CVE-2015-3193 but must be treated as a separate problem. 3741 3742 This issue was reported to OpenSSL by the OSS-Fuzz project. 3743 ([CVE-2017-3732]) 3744 3745 *Andy Polyakov* 3746 3747### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3748 3749 * ChaCha20/Poly1305 heap-buffer-overflow 3750 3751 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3752 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3753 crash. This issue is not considered to be exploitable beyond a DoS. 3754 3755 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3756 ([CVE-2016-7054]) 3757 3758 *Richard Levitte* 3759 3760 * CMS Null dereference 3761 3762 Applications parsing invalid CMS structures can crash with a NULL pointer 3763 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3764 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3765 structure callback if an attempt is made to free certain invalid encodings. 3766 Only CHOICE structures using a callback which do not handle NULL value are 3767 affected. 3768 3769 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3770 ([CVE-2016-7053]) 3771 3772 *Stephen Henson* 3773 3774 * Montgomery multiplication may produce incorrect results 3775 3776 There is a carry propagating bug in the Broadwell-specific Montgomery 3777 multiplication procedure that handles input lengths divisible by, but 3778 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3779 and DH private keys are impossible. This is because the subroutine in 3780 question is not used in operations with the private key itself and an input 3781 of the attacker's direct choice. Otherwise the bug can manifest itself as 3782 transient authentication and key negotiation failures or reproducible 3783 erroneous outcome of public-key operations with specially crafted input. 3784 Among EC algorithms only Brainpool P-512 curves are affected and one 3785 presumably can attack ECDH key negotiation. Impact was not analyzed in 3786 detail, because pre-requisites for attack are considered unlikely. Namely 3787 multiple clients have to choose the curve in question and the server has to 3788 share the private key among them, neither of which is default behaviour. 3789 Even then only clients that chose the curve will be affected. 3790 3791 This issue was publicly reported as transient failures and was not 3792 initially recognized as a security issue. Thanks to Richard Morgan for 3793 providing reproducible case. 3794 ([CVE-2016-7055]) 3795 3796 *Andy Polyakov* 3797 3798 * Removed automatic addition of RPATH in shared libraries and executables, 3799 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 3800 3801 *Richard Levitte* 3802 3803### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 3804 3805 * Fix Use After Free for large message sizes 3806 3807 The patch applied to address CVE-2016-6307 resulted in an issue where if a 3808 message larger than approx 16k is received then the underlying buffer to 3809 store the incoming message is reallocated and moved. Unfortunately a 3810 dangling pointer to the old location is left which results in an attempt to 3811 write to the previously freed location. This is likely to result in a 3812 crash, however it could potentially lead to execution of arbitrary code. 3813 3814 This issue only affects OpenSSL 1.1.0a. 3815 3816 This issue was reported to OpenSSL by Robert Święcki. 3817 ([CVE-2016-6309]) 3818 3819 *Matt Caswell* 3820 3821### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 3822 3823 * OCSP Status Request extension unbounded memory growth 3824 3825 A malicious client can send an excessively large OCSP Status Request 3826 extension. If that client continually requests renegotiation, sending a 3827 large OCSP Status Request extension each time, then there will be unbounded 3828 memory growth on the server. This will eventually lead to a Denial Of 3829 Service attack through memory exhaustion. Servers with a default 3830 configuration are vulnerable even if they do not support OCSP. Builds using 3831 the "no-ocsp" build time option are not affected. 3832 3833 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3834 ([CVE-2016-6304]) 3835 3836 *Matt Caswell* 3837 3838 * SSL_peek() hang on empty record 3839 3840 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 3841 sends an empty record. This could be exploited by a malicious peer in a 3842 Denial Of Service attack. 3843 3844 This issue was reported to OpenSSL by Alex Gaynor. 3845 ([CVE-2016-6305]) 3846 3847 *Matt Caswell* 3848 3849 * Excessive allocation of memory in tls_get_message_header() and 3850 dtls1_preprocess_fragment() 3851 3852 A (D)TLS message includes 3 bytes for its length in the header for the 3853 message. This would allow for messages up to 16Mb in length. Messages of 3854 this length are excessive and OpenSSL includes a check to ensure that a 3855 peer is sending reasonably sized messages in order to avoid too much memory 3856 being consumed to service a connection. A flaw in the logic of version 3857 1.1.0 means that memory for the message is allocated too early, prior to 3858 the excessive message length check. Due to way memory is allocated in 3859 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 3860 to service a connection. This could lead to a Denial of Service through 3861 memory exhaustion. However, the excessive message length check still takes 3862 place, and this would cause the connection to immediately fail. Assuming 3863 that the application calls SSL_free() on the failed connection in a timely 3864 manner then the 21Mb of allocated memory will then be immediately freed 3865 again. Therefore the excessive memory allocation will be transitory in 3866 nature. This then means that there is only a security impact if: 3867 3868 1) The application does not call SSL_free() in a timely manner in the event 3869 that the connection fails 3870 or 3871 2) The application is working in a constrained environment where there is 3872 very little free memory 3873 or 3874 3) The attacker initiates multiple connection attempts such that there are 3875 multiple connections in a state where memory has been allocated for the 3876 connection; SSL_free() has not yet been called; and there is insufficient 3877 memory to service the multiple requests. 3878 3879 Except in the instance of (1) above any Denial Of Service is likely to be 3880 transitory because as soon as the connection fails the memory is 3881 subsequently freed again in the SSL_free() call. However there is an 3882 increased risk during this period of application crashes due to the lack of 3883 memory - which would then mean a more serious Denial of Service. 3884 3885 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3886 (CVE-2016-6307 and CVE-2016-6308) 3887 3888 *Matt Caswell* 3889 3890 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 3891 had to be removed. Primary reason is that vendor assembler can't 3892 assemble our modules with -KPIC flag. As result it, assembly 3893 support, was not even available as option. But its lack means 3894 lack of side-channel resistant code, which is incompatible with 3895 security by todays standards. Fortunately gcc is readily available 3896 prepackaged option, which we firmly point at... 3897 3898 *Andy Polyakov* 3899 3900### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 3901 3902 * Windows command-line tool supports UTF-8 opt-in option for arguments 3903 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 3904 (to any value) allows Windows user to access PKCS#12 file generated 3905 with Windows CryptoAPI and protected with non-ASCII password, as well 3906 as files generated under UTF-8 locale on Linux also protected with 3907 non-ASCII password. 3908 3909 *Andy Polyakov* 3910 3911 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 3912 have been disabled by default and removed from DEFAULT, just like RC4. 3913 See the RC4 item below to re-enable both. 3914 3915 *Rich Salz* 3916 3917 * The method for finding the storage location for the Windows RAND seed file 3918 has changed. First we check %RANDFILE%. If that is not set then we check 3919 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 3920 all else fails we fall back to C:\. 3921 3922 *Matt Caswell* 3923 3924 * The EVP_EncryptUpdate() function has had its return type changed from void 3925 to int. A return of 0 indicates and error while a return of 1 indicates 3926 success. 3927 3928 *Matt Caswell* 3929 3930 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 3931 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 3932 off the constant time implementation for RSA, DSA and DH have been made 3933 no-ops and deprecated. 3934 3935 *Matt Caswell* 3936 3937 * Windows RAND implementation was simplified to only get entropy by 3938 calling CryptGenRandom(). Various other RAND-related tickets 3939 were also closed. 3940 3941 *Joseph Wylie Yandle, Rich Salz* 3942 3943 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 3944 and `OPENSSL_LH_`, respectively. The old names are available 3945 with API compatibility. They new names are now completely documented. 3946 3947 *Rich Salz* 3948 3949 * Unify TYPE_up_ref(obj) methods signature. 3950 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 3951 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 3952 int (instead of void) like all others TYPE_up_ref() methods. 3953 So now these methods also check the return value of CRYPTO_atomic_add(), 3954 and the validity of object reference counter. 3955 3956 *fdasilvayy@gmail.com* 3957 3958 * With Windows Visual Studio builds, the .pdb files are installed 3959 alongside the installed libraries and executables. For a static 3960 library installation, ossl_static.pdb is the associate compiler 3961 generated .pdb file to be used when linking programs. 3962 3963 *Richard Levitte* 3964 3965 * Remove openssl.spec. Packaging files belong with the packagers. 3966 3967 *Richard Levitte* 3968 3969 * Automatic Darwin/OSX configuration has had a refresh, it will now 3970 recognise x86_64 architectures automatically. You can still decide 3971 to build for a different bitness with the environment variable 3972 KERNEL_BITS (can be 32 or 64), for example: 3973 3974 KERNEL_BITS=32 ./config 3975 3976 *Richard Levitte* 3977 3978 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 3979 256 bit AES and HMAC with SHA256. 3980 3981 *Steve Henson* 3982 3983 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 3984 3985 *Andy Polyakov* 3986 3987 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 3988 3989 *Rich Salz* 3990 3991 * To enable users to have their own config files and build file templates, 3992 Configure looks in the directory indicated by the environment variable 3993 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 3994 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 3995 name and is used as is. 3996 3997 *Richard Levitte* 3998 3999 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 4000 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 4001 X509_CERT_FILE_CTX was removed. 4002 4003 *Rich Salz* 4004 4005 * "shared" builds are now the default. To create only static libraries use 4006 the "no-shared" Configure option. 4007 4008 *Matt Caswell* 4009 4010 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 4011 All of these option have not worked for some while and are fundamental 4012 algorithms. 4013 4014 *Matt Caswell* 4015 4016 * Make various cleanup routines no-ops and mark them as deprecated. Most 4017 global cleanup functions are no longer required because they are handled 4018 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 4019 Explicitly de-initing can cause problems (e.g. where a library that uses 4020 OpenSSL de-inits, but an application is still using it). The affected 4021 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 4022 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 4023 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 4024 COMP_zlib_cleanup(). 4025 4026 *Matt Caswell* 4027 4028 * --strict-warnings no longer enables runtime debugging options 4029 such as REF_DEBUG. Instead, debug options are automatically 4030 enabled with '--debug' builds. 4031 4032 *Andy Polyakov, Emilia Käsper* 4033 4034 * Made DH and DH_METHOD opaque. The structures for managing DH objects 4035 have been moved out of the public header files. New functions for managing 4036 these have been added. 4037 4038 *Matt Caswell* 4039 4040 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 4041 objects have been moved out of the public header files. New 4042 functions for managing these have been added. 4043 4044 *Richard Levitte* 4045 4046 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 4047 have been moved out of the public header files. New functions for managing 4048 these have been added. 4049 4050 *Matt Caswell* 4051 4052 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 4053 moved out of the public header files. New functions for managing these 4054 have been added. 4055 4056 *Matt Caswell* 4057 4058 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 4059 4060 *Matt Caswell* 4061 4062 * Removed the mk1mf build scripts. 4063 4064 *Richard Levitte* 4065 4066 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 4067 it is always safe to #include a header now. 4068 4069 *Rich Salz* 4070 4071 * Removed the aged BC-32 config and all its supporting scripts 4072 4073 *Richard Levitte* 4074 4075 * Removed support for Ultrix, Netware, and OS/2. 4076 4077 *Rich Salz* 4078 4079 * Add support for HKDF. 4080 4081 *Alessandro Ghedini* 4082 4083 * Add support for blake2b and blake2s 4084 4085 *Bill Cox* 4086 4087 * Added support for "pipelining". Ciphers that have the 4088 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 4089 encryptions/decryptions simultaneously. There are currently no built-in 4090 ciphers with this property but the expectation is that engines will be able 4091 to offer it to significantly improve throughput. Support has been extended 4092 into libssl so that multiple records for a single connection can be 4093 processed in one go (for >=TLS 1.1). 4094 4095 *Matt Caswell* 4096 4097 * Added the AFALG engine. This is an async capable engine which is able to 4098 offload work to the Linux kernel. In this initial version it only supports 4099 AES128-CBC. The kernel must be version 4.1.0 or greater. 4100 4101 *Catriona Lucey* 4102 4103 * OpenSSL now uses a new threading API. It is no longer necessary to 4104 set locking callbacks to use OpenSSL in a multi-threaded environment. There 4105 are two supported threading models: pthreads and windows threads. It is 4106 also possible to configure OpenSSL at compile time for "no-threads". The 4107 old threading API should no longer be used. The functions have been 4108 replaced with "no-op" compatibility macros. 4109 4110 *Alessandro Ghedini, Matt Caswell* 4111 4112 * Modify behavior of ALPN to invoke callback after SNI/servername 4113 callback, such that updates to the SSL_CTX affect ALPN. 4114 4115 *Todd Short* 4116 4117 * Add SSL_CIPHER queries for authentication and key-exchange. 4118 4119 *Todd Short* 4120 4121 * Changes to the DEFAULT cipherlist: 4122 - Prefer (EC)DHE handshakes over plain RSA. 4123 - Prefer AEAD ciphers over legacy ciphers. 4124 - Prefer ECDSA over RSA when both certificates are available. 4125 - Prefer TLSv1.2 ciphers/PRF. 4126 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 4127 default cipherlist. 4128 4129 *Emilia Käsper* 4130 4131 * Change the ECC default curve list to be this, in order: x25519, 4132 secp256r1, secp521r1, secp384r1. 4133 4134 *Rich Salz* 4135 4136 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 4137 disabled by default. They can be re-enabled using the 4138 enable-weak-ssl-ciphers option to Configure. 4139 4140 *Matt Caswell* 4141 4142 * If the server has ALPN configured, but supports no protocols that the 4143 client advertises, send a fatal "no_application_protocol" alert. 4144 This behaviour is SHALL in RFC 7301, though it isn't universally 4145 implemented by other servers. 4146 4147 *Emilia Käsper* 4148 4149 * Add X25519 support. 4150 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 4151 for public and private key encoding using the format documented in 4152 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 4153 key generation and key derivation. 4154 4155 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 4156 X25519(29). 4157 4158 *Steve Henson* 4159 4160 * Deprecate SRP_VBASE_get_by_user. 4161 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4162 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4163 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4164 seed, even if the seed is configured. 4165 4166 Users should use SRP_VBASE_get1_by_user instead. Note that in 4167 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4168 also that even though configuring the SRP seed attempts to hide 4169 invalid usernames by continuing the handshake with fake 4170 credentials, this behaviour is not constant time and no strong 4171 guarantees are made that the handshake is indistinguishable from 4172 that of a valid user. 4173 4174 *Emilia Käsper* 4175 4176 * Configuration change; it's now possible to build dynamic engines 4177 without having to build shared libraries and vice versa. This 4178 only applies to the engines in `engines/`, those in `crypto/engine/` 4179 will always be built into libcrypto (i.e. "static"). 4180 4181 Building dynamic engines is enabled by default; to disable, use 4182 the configuration option "disable-dynamic-engine". 4183 4184 The only requirements for building dynamic engines are the 4185 presence of the DSO module and building with position independent 4186 code, so they will also automatically be disabled if configuring 4187 with "disable-dso" or "disable-pic". 4188 4189 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4190 are also taken away from openssl/opensslconf.h, as they are 4191 irrelevant. 4192 4193 *Richard Levitte* 4194 4195 * Configuration change; if there is a known flag to compile 4196 position independent code, it will always be applied on the 4197 libcrypto and libssl object files, and never on the application 4198 object files. This means other libraries that use routines from 4199 libcrypto / libssl can be made into shared libraries regardless 4200 of how OpenSSL was configured. 4201 4202 If this isn't desirable, the configuration options "disable-pic" 4203 or "no-pic" can be used to disable the use of PIC. This will 4204 also disable building shared libraries and dynamic engines. 4205 4206 *Richard Levitte* 4207 4208 * Removed JPAKE code. It was experimental and has no wide use. 4209 4210 *Rich Salz* 4211 4212 * The INSTALL_PREFIX Makefile variable has been renamed to 4213 DESTDIR. That makes for less confusion on what this variable 4214 is for. Also, the configuration option --install_prefix is 4215 removed. 4216 4217 *Richard Levitte* 4218 4219 * Heartbeat for TLS has been removed and is disabled by default 4220 for DTLS; configure with enable-heartbeats. Code that uses the 4221 old #define's might need to be updated. 4222 4223 *Emilia Käsper, Rich Salz* 4224 4225 * Rename REF_CHECK to REF_DEBUG. 4226 4227 *Rich Salz* 4228 4229 * New "unified" build system 4230 4231 The "unified" build system is aimed to be a common system for all 4232 platforms we support. With it comes new support for VMS. 4233 4234 This system builds supports building in a different directory tree 4235 than the source tree. It produces one Makefile (for unix family 4236 or lookalikes), or one descrip.mms (for VMS). 4237 4238 The source of information to make the Makefile / descrip.mms is 4239 small files called 'build.info', holding the necessary 4240 information for each directory with source to compile, and a 4241 template in Configurations, like unix-Makefile.tmpl or 4242 descrip.mms.tmpl. 4243 4244 With this change, the library names were also renamed on Windows 4245 and on VMS. They now have names that are closer to the standard 4246 on Unix, and include the major version number, and in certain 4247 cases, the architecture they are built for. See "Notes on shared 4248 libraries" in INSTALL. 4249 4250 We rely heavily on the perl module Text::Template. 4251 4252 *Richard Levitte* 4253 4254 * Added support for auto-initialisation and de-initialisation of the library. 4255 OpenSSL no longer requires explicit init or deinit routines to be called, 4256 except in certain circumstances. See the OPENSSL_init_crypto() and 4257 OPENSSL_init_ssl() man pages for further information. 4258 4259 *Matt Caswell* 4260 4261 * The arguments to the DTLSv1_listen function have changed. Specifically the 4262 "peer" argument is now expected to be a BIO_ADDR object. 4263 4264 * Rewrite of BIO networking library. The BIO library lacked consistent 4265 support of IPv6, and adding it required some more extensive 4266 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4267 which hold all types of addresses and chains of address information. 4268 It also introduces a new API, with functions like BIO_socket, 4269 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4270 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4271 have been adapted accordingly. 4272 4273 *Richard Levitte* 4274 4275 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4276 the leading 0-byte. 4277 4278 *Emilia Käsper* 4279 4280 * CRIME protection: disable compression by default, even if OpenSSL is 4281 compiled with zlib enabled. Applications can still enable compression 4282 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4283 using the SSL_CONF library to configure compression. 4284 4285 *Emilia Käsper* 4286 4287 * The signature of the session callback configured with 4288 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4289 was explicitly marked as `const unsigned char*` instead of 4290 `unsigned char*`. 4291 4292 *Emilia Käsper* 4293 4294 * Always DPURIFY. Remove the use of uninitialized memory in the 4295 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4296 4297 *Emilia Käsper* 4298 4299 * Removed many obsolete configuration items, including 4300 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4301 MD2_CHAR, MD2_INT, MD2_LONG 4302 BF_PTR, BF_PTR2 4303 IDEA_SHORT, IDEA_LONG 4304 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4305 4306 *Rich Salz, with advice from Andy Polyakov* 4307 4308 * Many BN internals have been moved to an internal header file. 4309 4310 *Rich Salz with help from Andy Polyakov* 4311 4312 * Configuration and writing out the results from it has changed. 4313 Files such as Makefile include/openssl/opensslconf.h and are now 4314 produced through general templates, such as Makefile.in and 4315 crypto/opensslconf.h.in and some help from the perl module 4316 Text::Template. 4317 4318 Also, the center of configuration information is no longer 4319 Makefile. Instead, Configure produces a perl module in 4320 configdata.pm which holds most of the config data (in the hash 4321 table %config), the target data that comes from the target 4322 configuration in one of the `Configurations/*.conf` files (in 4323 %target). 4324 4325 *Richard Levitte* 4326 4327 * To clarify their intended purposes, the Configure options 4328 --prefix and --openssldir change their semantics, and become more 4329 straightforward and less interdependent. 4330 4331 --prefix shall be used exclusively to give the location INSTALLTOP 4332 where programs, scripts, libraries, include files and manuals are 4333 going to be installed. The default is now /usr/local. 4334 4335 --openssldir shall be used exclusively to give the default 4336 location OPENSSLDIR where certificates, private keys, CRLs are 4337 managed. This is also where the default openssl.cnf gets 4338 installed. 4339 If the directory given with this option is a relative path, the 4340 values of both the --prefix value and the --openssldir value will 4341 be combined to become OPENSSLDIR. 4342 The default for --openssldir is INSTALLTOP/ssl. 4343 4344 Anyone who uses --openssldir to specify where OpenSSL is to be 4345 installed MUST change to use --prefix instead. 4346 4347 *Richard Levitte* 4348 4349 * The GOST engine was out of date and therefore it has been removed. An up 4350 to date GOST engine is now being maintained in an external repository. 4351 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4352 support for GOST ciphersuites (these are only activated if a GOST engine 4353 is present). 4354 4355 *Matt Caswell* 4356 4357 * EGD is no longer supported by default; use enable-egd when 4358 configuring. 4359 4360 *Ben Kaduk and Rich Salz* 4361 4362 * The distribution now has Makefile.in files, which are used to 4363 create Makefile's when Configure is run. *Configure must be run 4364 before trying to build now.* 4365 4366 *Rich Salz* 4367 4368 * The return value for SSL_CIPHER_description() for error conditions 4369 has changed. 4370 4371 *Rich Salz* 4372 4373 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4374 4375 Obtaining and performing DNSSEC validation of TLSA records is 4376 the application's responsibility. The application provides 4377 the TLSA records of its choice to OpenSSL, and these are then 4378 used to authenticate the peer. 4379 4380 The TLSA records need not even come from DNS. They can, for 4381 example, be used to implement local end-entity certificate or 4382 trust-anchor "pinning", where the "pin" data takes the form 4383 of TLSA records, which can augment or replace verification 4384 based on the usual WebPKI public certification authorities. 4385 4386 *Viktor Dukhovni* 4387 4388 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4389 continues to support deprecated interfaces in default builds. 4390 However, applications are strongly advised to compile their 4391 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4392 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4393 or the 1.1.0 releases. 4394 4395 In environments in which all applications have been ported to 4396 not use any deprecated interfaces OpenSSL's Configure script 4397 should be used with the --api=1.1.0 option to entirely remove 4398 support for the deprecated features from the library and 4399 unconditionally disable them in the installed headers. 4400 Essentially the same effect can be achieved with the "no-deprecated" 4401 argument to Configure, except that this will always restrict 4402 the build to just the latest API, rather than a fixed API 4403 version. 4404 4405 As applications are ported to future revisions of the API, 4406 they should update their compile-time OPENSSL_API_COMPAT define 4407 accordingly, but in most cases should be able to continue to 4408 compile with later releases. 4409 4410 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4411 0x10000000L and 0x00908000L, respectively. However those 4412 versions did not support the OPENSSL_API_COMPAT feature, and 4413 so applications are not typically tested for explicit support 4414 of just the undeprecated features of either release. 4415 4416 *Viktor Dukhovni* 4417 4418 * Add support for setting the minimum and maximum supported protocol. 4419 It can bet set via the SSL_set_min_proto_version() and 4420 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4421 MaxProtocol. It's recommended to use the new APIs to disable 4422 protocols instead of disabling individual protocols using 4423 SSL_set_options() or SSL_CONF's Protocol. This change also 4424 removes support for disabling TLS 1.2 in the OpenSSL TLS 4425 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4426 4427 *Kurt Roeckx* 4428 4429 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4430 4431 *Andy Polyakov* 4432 4433 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4434 and integrates ECDSA and ECDH functionality into EC. Implementations can 4435 now redirect key generation and no longer need to convert to or from 4436 ECDSA_SIG format. 4437 4438 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4439 include the ec.h header file instead. 4440 4441 *Steve Henson* 4442 4443 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4444 ciphers who are no longer supported and drops support the ephemeral RSA key 4445 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4446 4447 *Kurt Roeckx* 4448 4449 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4450 opaque. For HMAC_CTX, the following constructors and destructors 4451 were added: 4452 4453 HMAC_CTX *HMAC_CTX_new(void); 4454 void HMAC_CTX_free(HMAC_CTX *ctx); 4455 4456 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4457 destroy such methods has been added. See EVP_MD_meth_new(3) and 4458 EVP_CIPHER_meth_new(3) for documentation. 4459 4460 Additional changes: 4461 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4462 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4463 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4464 an already created structure. 4465 2) For consistency with the majority of our object creators and 4466 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4467 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4468 for deprecated builds. 4469 4470 *Richard Levitte* 4471 4472 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4473 cryptographic operations to be performed asynchronously as long as an 4474 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4475 further details. Libssl has also had this capability integrated with the 4476 introduction of the new mode SSL_MODE_ASYNC and associated error 4477 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4478 pages. This work was developed in partnership with Intel Corp. 4479 4480 *Matt Caswell* 4481 4482 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4483 always enabled now. If you want to disable the support you should 4484 exclude it using the list of supported ciphers. This also means that the 4485 "-no_ecdhe" option has been removed from s_server. 4486 4487 *Kurt Roeckx* 4488 4489 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4490 SSL_{CTX_}set1_curves() which can set a list. 4491 4492 *Kurt Roeckx* 4493 4494 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4495 curve you want to support using SSL_{CTX_}set1_curves(). 4496 4497 *Kurt Roeckx* 4498 4499 * State machine rewrite. The state machine code has been significantly 4500 refactored in order to remove much duplication of code and solve issues 4501 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4502 further details). This change does have some associated API changes. 4503 Notably the SSL_state() function has been removed and replaced by 4504 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4505 SSL_set_state() has been removed altogether. The previous handshake states 4506 defined in ssl.h and ssl3.h have also been removed. 4507 4508 *Matt Caswell* 4509 4510 * All instances of the string "ssleay" in the public API were replaced 4511 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4512 Some error codes related to internal RSA_eay API's were renamed. 4513 4514 *Rich Salz* 4515 4516 * The demo files in crypto/threads were moved to demo/threads. 4517 4518 *Rich Salz* 4519 4520 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4521 sureware and ubsec. 4522 4523 *Matt Caswell, Rich Salz* 4524 4525 * New ASN.1 embed macro. 4526 4527 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4528 structure is not allocated: it is part of the parent. That is instead of 4529 4530 FOO *x; 4531 4532 it must be: 4533 4534 FOO x; 4535 4536 This reduces memory fragmentation and make it impossible to accidentally 4537 set a mandatory field to NULL. 4538 4539 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4540 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4541 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4542 SEQUENCE OF. 4543 4544 *Steve Henson* 4545 4546 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4547 4548 *Emilia Käsper* 4549 4550 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4551 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4552 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4553 DES and RC4 ciphersuites. 4554 4555 *Matt Caswell* 4556 4557 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4558 This changes the decoding behaviour for some invalid messages, 4559 though the change is mostly in the more lenient direction, and 4560 legacy behaviour is preserved as much as possible. 4561 4562 *Emilia Käsper* 4563 4564 * Fix no-stdio build. 4565 *David Woodhouse <David.Woodhouse@intel.com> and also* 4566 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4567 4568 * New testing framework 4569 The testing framework has been largely rewritten and is now using 4570 perl and the perl modules Test::Harness and an extended variant of 4571 Test::More called OpenSSL::Test to do its work. All test scripts in 4572 test/ have been rewritten into test recipes, and all direct calls to 4573 executables in test/Makefile have become individual recipes using the 4574 simplified testing OpenSSL::Test::Simple. 4575 4576 For documentation on our testing modules, do: 4577 4578 perldoc test/testlib/OpenSSL/Test/Simple.pm 4579 perldoc test/testlib/OpenSSL/Test.pm 4580 4581 *Richard Levitte* 4582 4583 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4584 are used; the latter aborts on memory leaks (usually checked on exit). 4585 Some undocumented "set malloc, etc., hooks" functions were removed 4586 and others were changed. All are now documented. 4587 4588 *Rich Salz* 4589 4590 * In DSA_generate_parameters_ex, if the provided seed is too short, 4591 return an error 4592 4593 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4594 4595 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4596 from RFC4279, RFC4785, RFC5487, RFC5489. 4597 4598 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4599 original RSA_PSK patch. 4600 4601 *Steve Henson* 4602 4603 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4604 era flag was never set throughout the codebase (only read). Also removed 4605 SSL3_FLAGS_POP_BUFFER which was only used if 4606 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4607 4608 *Matt Caswell* 4609 4610 * Changed the default name options in the "ca", "crl", "req" and "x509" 4611 to be "oneline" instead of "compat". 4612 4613 *Richard Levitte* 4614 4615 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4616 not aware of clients that still exhibit this bug, and the workaround 4617 hasn't been working properly for a while. 4618 4619 *Emilia Käsper* 4620 4621 * The return type of BIO_number_read() and BIO_number_written() as well as 4622 the corresponding num_read and num_write members in the BIO structure has 4623 changed from unsigned long to uint64_t. On platforms where an unsigned 4624 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4625 transferred. 4626 4627 *Matt Caswell* 4628 4629 * Given the pervasive nature of TLS extensions it is inadvisable to run 4630 OpenSSL without support for them. It also means that maintaining 4631 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4632 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4633 4634 *Matt Caswell* 4635 4636 * Removed support for the two export grade static DH ciphersuites 4637 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4638 were newly added (along with a number of other static DH ciphersuites) to 4639 1.0.2. However the two export ones have *never* worked since they were 4640 introduced. It seems strange in any case to be adding new export 4641 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4642 4643 *Matt Caswell* 4644 4645 * Version negotiation has been rewritten. In particular SSLv23_method(), 4646 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4647 and turned into macros which simply call the new preferred function names 4648 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4649 should use the new names instead. Also as part of this change the ssl23.h 4650 header file has been removed. 4651 4652 *Matt Caswell* 4653 4654 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4655 code and the associated standard is no longer considered fit-for-purpose. 4656 4657 *Matt Caswell* 4658 4659 * RT2547 was closed. When generating a private key, try to make the 4660 output file readable only by the owner. This behavior change might 4661 be noticeable when interacting with other software. 4662 4663 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4664 Added a test. 4665 4666 *Rich Salz* 4667 4668 * Added HTTP GET support to the ocsp command. 4669 4670 *Rich Salz* 4671 4672 * Changed default digest for the dgst and enc commands from MD5 to 4673 sha256 4674 4675 *Rich Salz* 4676 4677 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4678 4679 *Matt Caswell* 4680 4681 * Added support for TLS extended master secret from 4682 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4683 initial patch which was a great help during development. 4684 4685 *Steve Henson* 4686 4687 * All libssl internal structures have been removed from the public header 4688 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4689 now redundant). Users should not attempt to access internal structures 4690 directly. Instead they should use the provided API functions. 4691 4692 *Matt Caswell* 4693 4694 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4695 Access to deprecated functions can be re-enabled by running config with 4696 "enable-deprecated". In addition applications wishing to use deprecated 4697 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4698 will, by default, disable some transitive includes that previously existed 4699 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4700 4701 *Matt Caswell* 4702 4703 * Added support for OCB mode. OpenSSL has been granted a patent license 4704 compatible with the OpenSSL license for use of OCB. Details are available 4705 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4706 for OCB can be removed by calling config with no-ocb. 4707 4708 *Matt Caswell* 4709 4710 * SSLv2 support has been removed. It still supports receiving a SSLv2 4711 compatible client hello. 4712 4713 *Kurt Roeckx* 4714 4715 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4716 done while fixing the error code for the key-too-small case. 4717 4718 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4719 4720 * CA.sh has been removed; use CA.pl instead. 4721 4722 *Rich Salz* 4723 4724 * Removed old DES API. 4725 4726 *Rich Salz* 4727 4728 * Remove various unsupported platforms: 4729 Sony NEWS4 4730 BEOS and BEOS_R5 4731 NeXT 4732 SUNOS 4733 MPE/iX 4734 Sinix/ReliantUNIX RM400 4735 DGUX 4736 NCR 4737 Tandem 4738 Cray 4739 16-bit platforms such as WIN16 4740 4741 *Rich Salz* 4742 4743 * Clean up OPENSSL_NO_xxx #define's 4744 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4745 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4746 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4747 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4748 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4749 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4750 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4751 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4752 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4753 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4754 4755 *Rich Salz* 4756 4757 * Cleaned up dead code 4758 Remove all but one '#ifdef undef' which is to be looked at. 4759 4760 *Rich Salz* 4761 4762 * Clean up calling of xxx_free routines. 4763 Just like free(), fix most of the xxx_free routines to accept 4764 NULL. Remove the non-null checks from callers. Save much code. 4765 4766 *Rich Salz* 4767 4768 * Add secure heap for storage of private keys (when possible). 4769 Add BIO_s_secmem(), CBIGNUM, etc. 4770 Contributed by Akamai Technologies under our Corporate CLA. 4771 4772 *Rich Salz* 4773 4774 * Experimental support for a new, fast, unbiased prime candidate generator, 4775 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4776 4777 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4778 4779 * New output format NSS in the sess_id command line tool. This allows 4780 exporting the session id and the master key in NSS keylog format. 4781 4782 *Martin Kaiser <martin@kaiser.cx>* 4783 4784 * Harmonize version and its documentation. -f flag is used to display 4785 compilation flags. 4786 4787 *mancha <mancha1@zoho.com>* 4788 4789 * Fix eckey_priv_encode so it immediately returns an error upon a failure 4790 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 4791 4792 *mancha <mancha1@zoho.com>* 4793 4794 * Fix some double frees. These are not thought to be exploitable. 4795 4796 *mancha <mancha1@zoho.com>* 4797 4798 * A missing bounds check in the handling of the TLS heartbeat extension 4799 can be used to reveal up to 64k of memory to a connected client or 4800 server. 4801 4802 Thanks for Neel Mehta of Google Security for discovering this bug and to 4803 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4804 preparing the fix ([CVE-2014-0160]) 4805 4806 *Adam Langley, Bodo Moeller* 4807 4808 * Fix for the attack described in the paper "Recovering OpenSSL 4809 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4810 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4811 <http://eprint.iacr.org/2014/140> 4812 4813 Thanks to Yuval Yarom and Naomi Benger for discovering this 4814 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 4815 4816 *Yuval Yarom and Naomi Benger* 4817 4818 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 4819 this fixes a limitation in previous versions of OpenSSL. 4820 4821 *Steve Henson* 4822 4823 * Experimental encrypt-then-mac support. 4824 4825 Experimental support for encrypt then mac from 4826 draft-gutmann-tls-encrypt-then-mac-02.txt 4827 4828 To enable it set the appropriate extension number (0x42 for the test 4829 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 4830 4831 For non-compliant peers (i.e. just about everything) this should have no 4832 effect. 4833 4834 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 4835 4836 *Steve Henson* 4837 4838 * Add EVP support for key wrapping algorithms, to avoid problems with 4839 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 4840 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 4841 algorithms and include tests cases. 4842 4843 *Steve Henson* 4844 4845 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 4846 enveloped data. 4847 4848 *Steve Henson* 4849 4850 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 4851 MGF1 digest and OAEP label. 4852 4853 *Steve Henson* 4854 4855 * Make openssl verify return errors. 4856 4857 *Chris Palmer <palmer@google.com> and Ben Laurie* 4858 4859 * New function ASN1_TIME_diff to calculate the difference between two 4860 ASN1_TIME structures or one structure and the current time. 4861 4862 *Steve Henson* 4863 4864 * Update fips_test_suite to support multiple command line options. New 4865 test to induce all self test errors in sequence and check expected 4866 failures. 4867 4868 *Steve Henson* 4869 4870 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 4871 sign or verify all in one operation. 4872 4873 *Steve Henson* 4874 4875 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 4876 test programs and fips_test_suite. Includes functionality to parse 4877 the minimal script output of fipsalgest.pl directly. 4878 4879 *Steve Henson* 4880 4881 * Add authorisation parameter to FIPS_module_mode_set(). 4882 4883 *Steve Henson* 4884 4885 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 4886 4887 *Steve Henson* 4888 4889 * Use separate DRBG fields for internal and external flags. New function 4890 FIPS_drbg_health_check() to perform on demand health checking. Add 4891 generation tests to fips_test_suite with reduced health check interval to 4892 demonstrate periodic health checking. Add "nodh" option to 4893 fips_test_suite to skip very slow DH test. 4894 4895 *Steve Henson* 4896 4897 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 4898 based on NID. 4899 4900 *Steve Henson* 4901 4902 * More extensive health check for DRBG checking many more failure modes. 4903 New function FIPS_selftest_drbg_all() to handle every possible DRBG 4904 combination: call this in fips_test_suite. 4905 4906 *Steve Henson* 4907 4908 * Add support for canonical generation of DSA parameter 'g'. See 4909 FIPS 186-3 A.2.3. 4910 4911 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 4912 POST to handle HMAC cases. 4913 4914 *Steve Henson* 4915 4916 * Add functions FIPS_module_version() and FIPS_module_version_text() 4917 to return numerical and string versions of the FIPS module number. 4918 4919 *Steve Henson* 4920 4921 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 4922 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 4923 outside the validated module in the FIPS capable OpenSSL. 4924 4925 *Steve Henson* 4926 4927 * Minor change to DRBG entropy callback semantics. In some cases 4928 there is no multiple of the block length between min_len and 4929 max_len. Allow the callback to return more than max_len bytes 4930 of entropy but discard any extra: it is the callback's responsibility 4931 to ensure that the extra data discarded does not impact the 4932 requested amount of entropy. 4933 4934 *Steve Henson* 4935 4936 * Add PRNG security strength checks to RSA, DSA and ECDSA using 4937 information in FIPS186-3, SP800-57 and SP800-131A. 4938 4939 *Steve Henson* 4940 4941 * CCM support via EVP. Interface is very similar to GCM case except we 4942 must supply all data in one chunk (i.e. no update, final) and the 4943 message length must be supplied if AAD is used. Add algorithm test 4944 support. 4945 4946 *Steve Henson* 4947 4948 * Initial version of POST overhaul. Add POST callback to allow the status 4949 of POST to be monitored and/or failures induced. Modify fips_test_suite 4950 to use callback. Always run all selftests even if one fails. 4951 4952 *Steve Henson* 4953 4954 * XTS support including algorithm test driver in the fips_gcmtest program. 4955 Note: this does increase the maximum key length from 32 to 64 bytes but 4956 there should be no binary compatibility issues as existing applications 4957 will never use XTS mode. 4958 4959 *Steve Henson* 4960 4961 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 4962 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 4963 performs algorithm blocking for unapproved PRNG types. Also do not 4964 set PRNG type in FIPS_mode_set(): leave this to the application. 4965 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 4966 the standard OpenSSL PRNG: set additional data to a date time vector. 4967 4968 *Steve Henson* 4969 4970 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 4971 This shouldn't present any incompatibility problems because applications 4972 shouldn't be using these directly and any that are will need to rethink 4973 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 4974 4975 *Steve Henson* 4976 4977 * Extensive self tests and health checking required by SP800-90 DRBG. 4978 Remove strength parameter from FIPS_drbg_instantiate and always 4979 instantiate at maximum supported strength. 4980 4981 *Steve Henson* 4982 4983 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 4984 4985 *Steve Henson* 4986 4987 * New algorithm test program fips_dhvs to handle DH primitives only testing. 4988 4989 *Steve Henson* 4990 4991 * New function DH_compute_key_padded() to compute a DH key and pad with 4992 leading zeroes if needed: this complies with SP800-56A et al. 4993 4994 *Steve Henson* 4995 4996 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 4997 anything, incomplete, subject to change and largely untested at present. 4998 4999 *Steve Henson* 5000 5001 * Modify fipscanisteronly build option to only build the necessary object 5002 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 5003 5004 *Steve Henson* 5005 5006 * Add experimental option FIPSSYMS to give all symbols in 5007 fipscanister.o and FIPS or fips prefix. This will avoid 5008 conflicts with future versions of OpenSSL. Add perl script 5009 util/fipsas.pl to preprocess assembly language source files 5010 and rename any affected symbols. 5011 5012 *Steve Henson* 5013 5014 * Add selftest checks and algorithm block of non-fips algorithms in 5015 FIPS mode. Remove DES2 from selftests. 5016 5017 *Steve Henson* 5018 5019 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 5020 return internal method without any ENGINE dependencies. Add new 5021 tiny fips sign and verify functions. 5022 5023 *Steve Henson* 5024 5025 * New build option no-ec2m to disable characteristic 2 code. 5026 5027 *Steve Henson* 5028 5029 * New build option "fipscanisteronly". This only builds fipscanister.o 5030 and (currently) associated fips utilities. Uses the file Makefile.fips 5031 instead of Makefile.org as the prototype. 5032 5033 *Steve Henson* 5034 5035 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 5036 Update fips_gcmtest to use IV generator. 5037 5038 *Steve Henson* 5039 5040 * Initial, experimental EVP support for AES-GCM. AAD can be input by 5041 setting output buffer to NULL. The `*Final` function must be 5042 called although it will not retrieve any additional data. The tag 5043 can be set or retrieved with a ctrl. The IV length is by default 12 5044 bytes (96 bits) but can be set to an alternative value. If the IV 5045 length exceeds the maximum IV length (currently 16 bytes) it cannot be 5046 set before the key. 5047 5048 *Steve Henson* 5049 5050 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 5051 underlying do_cipher function handles all cipher semantics itself 5052 including padding and finalisation. This is useful if (for example) 5053 an ENGINE cipher handles block padding itself. The behaviour of 5054 do_cipher is subtly changed if this flag is set: the return value 5055 is the number of characters written to the output buffer (zero is 5056 no longer an error code) or a negative error code. Also if the 5057 input buffer is NULL and length 0 finalisation should be performed. 5058 5059 *Steve Henson* 5060 5061 * If a candidate issuer certificate is already part of the constructed 5062 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 5063 5064 *Steve Henson* 5065 5066 * Improve forward-security support: add functions 5067 5068 void SSL_CTX_set_not_resumable_session_callback( 5069 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 5070 void SSL_set_not_resumable_session_callback( 5071 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 5072 5073 for use by SSL/TLS servers; the callback function will be called whenever a 5074 new session is created, and gets to decide whether the session may be 5075 cached to make it resumable (return 0) or not (return 1). (As by the 5076 SSL/TLS protocol specifications, the session_id sent by the server will be 5077 empty to indicate that the session is not resumable; also, the server will 5078 not generate RFC 4507 (RFC 5077) session tickets.) 5079 5080 A simple reasonable callback implementation is to return is_forward_secure. 5081 This parameter will be set to 1 or 0 depending on the ciphersuite selected 5082 by the SSL/TLS server library, indicating whether it can provide forward 5083 security. 5084 5085 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 5086 5087 * New -verify_name option in command line utilities to set verification 5088 parameters by name. 5089 5090 *Steve Henson* 5091 5092 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 5093 Add CMAC pkey methods. 5094 5095 *Steve Henson* 5096 5097 * Experimental renegotiation in s_server -www mode. If the client 5098 browses /reneg connection is renegotiated. If /renegcert it is 5099 renegotiated requesting a certificate. 5100 5101 *Steve Henson* 5102 5103 * Add an "external" session cache for debugging purposes to s_server. This 5104 should help trace issues which normally are only apparent in deployed 5105 multi-process servers. 5106 5107 *Steve Henson* 5108 5109 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 5110 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 5111 BIO_set_cipher() and some obscure PEM functions were changed so they 5112 can now return an error. The RAND changes required a change to the 5113 RAND_METHOD structure. 5114 5115 *Steve Henson* 5116 5117 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 5118 a gcc attribute to warn if the result of a function is ignored. This 5119 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 5120 whose return value is often ignored. 5121 5122 *Steve Henson* 5123 5124 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 5125 These allow SCTs (signed certificate timestamps) to be requested and 5126 validated when establishing a connection. 5127 5128 *Rob Percival <robpercival@google.com>* 5129 5130OpenSSL 1.0.2 5131------------- 5132 5133### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 5134 5135 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 5136 used even when parsing explicit parameters, when loading a encoded key 5137 or calling `EC_GROUP_new_from_ecpkparameters()`/ 5138 `EC_GROUP_new_from_ecparameters()`. 5139 This prevents bypass of security hardening and performance gains, 5140 especially for curves with specialized EC_METHODs. 5141 By default, if a key encoded with explicit parameters is loaded and later 5142 encoded, the output is still encoded with explicit parameters, even if 5143 internally a "named" EC_GROUP is used for computation. 5144 5145 *Nicola Tuveri* 5146 5147 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 5148 this change, EC_GROUP_set_generator would accept order and/or cofactor as 5149 NULL. After this change, only the cofactor parameter can be NULL. It also 5150 does some minimal sanity checks on the passed order. 5151 ([CVE-2019-1547]) 5152 5153 *Billy Bob Brumley* 5154 5155 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 5156 An attack is simple, if the first CMS_recipientInfo is valid but the 5157 second CMS_recipientInfo is chosen ciphertext. If the second 5158 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 5159 encryption key will be replaced by garbage, and the message cannot be 5160 decoded, but if the RSA decryption fails, the correct encryption key is 5161 used and the recipient will not notice the attack. 5162 As a work around for this potential attack the length of the decrypted 5163 key must be equal to the cipher default key length, in case the 5164 certifiate is not given and all recipientInfo are tried out. 5165 The old behaviour can be re-enabled in the CMS code by setting the 5166 CMS_DEBUG_DECRYPT flag. 5167 ([CVE-2019-1563]) 5168 5169 *Bernd Edlinger* 5170 5171 * Document issue with installation paths in diverse Windows builds 5172 5173 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5174 binaries and run-time config file. 5175 ([CVE-2019-1552]) 5176 5177 *Richard Levitte* 5178 5179### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5180 5181 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5182 This changes the size when using the `genpkey` command when no size is given. 5183 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5184 generation commands to use 2048 bits by default. 5185 5186 *Kurt Roeckx* 5187 5188 * Add FIPS support for Android Arm 64-bit 5189 5190 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5191 Module in Version 2.0.10. For some reason, the corresponding target 5192 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5193 built with FIPS support on Android Arm 64-bit. This omission has been 5194 fixed. 5195 5196 *Matthias St. Pierre* 5197 5198### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5199 5200 * 0-byte record padding oracle 5201 5202 If an application encounters a fatal protocol error and then calls 5203 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5204 then OpenSSL can respond differently to the calling application if a 0 byte 5205 record is received with invalid padding compared to if a 0 byte record is 5206 received with an invalid MAC. If the application then behaves differently 5207 based on that in a way that is detectable to the remote peer, then this 5208 amounts to a padding oracle that could be used to decrypt data. 5209 5210 In order for this to be exploitable "non-stitched" ciphersuites must be in 5211 use. Stitched ciphersuites are optimised implementations of certain 5212 commonly used ciphersuites. Also the application must call SSL_shutdown() 5213 twice even if a protocol error has occurred (applications should not do 5214 this but some do anyway). 5215 5216 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5217 Aviram, with additional investigation by Steven Collison and Andrew 5218 Hourselt. It was reported to OpenSSL on 10th December 2018. 5219 ([CVE-2019-1559]) 5220 5221 *Matt Caswell* 5222 5223 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5224 5225 *Richard Levitte* 5226 5227### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5228 5229 * Microarchitecture timing vulnerability in ECC scalar multiplication 5230 5231 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5232 shown to be vulnerable to a microarchitecture timing side channel attack. 5233 An attacker with sufficient access to mount local timing attacks during 5234 ECDSA signature generation could recover the private key. 5235 5236 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5237 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5238 Nicola Tuveri. 5239 ([CVE-2018-5407]) 5240 5241 *Billy Brumley* 5242 5243 * Timing vulnerability in DSA signature generation 5244 5245 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5246 timing side channel attack. An attacker could use variations in the signing 5247 algorithm to recover the private key. 5248 5249 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5250 ([CVE-2018-0734]) 5251 5252 *Paul Dale* 5253 5254 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5255 Module, accidentally introduced while backporting security fixes from the 5256 development branch and hindering the use of ECC in FIPS mode. 5257 5258 *Nicola Tuveri* 5259 5260### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5261 5262 * Client DoS due to large DH parameter 5263 5264 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5265 malicious server can send a very large prime value to the client. This will 5266 cause the client to spend an unreasonably long period of time generating a 5267 key for this prime resulting in a hang until the client has finished. This 5268 could be exploited in a Denial Of Service attack. 5269 5270 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5271 ([CVE-2018-0732]) 5272 5273 *Guido Vranken* 5274 5275 * Cache timing vulnerability in RSA Key Generation 5276 5277 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5278 a cache timing side channel attack. An attacker with sufficient access to 5279 mount cache timing attacks during the RSA key generation process could 5280 recover the private key. 5281 5282 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5283 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5284 ([CVE-2018-0737]) 5285 5286 *Billy Brumley* 5287 5288 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5289 parameter is no longer accepted, as it leads to a corrupt table. NULL 5290 pem_str is reserved for alias entries only. 5291 5292 *Richard Levitte* 5293 5294 * Revert blinding in ECDSA sign and instead make problematic addition 5295 length-invariant. Switch even to fixed-length Montgomery multiplication. 5296 5297 *Andy Polyakov* 5298 5299 * Change generating and checking of primes so that the error rate of not 5300 being prime depends on the intended use based on the size of the input. 5301 For larger primes this will result in more rounds of Miller-Rabin. 5302 The maximal error rate for primes with more than 1080 bits is lowered 5303 to 2^-128. 5304 5305 *Kurt Roeckx, Annie Yousar* 5306 5307 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5308 5309 *Kurt Roeckx* 5310 5311 * Add blinding to ECDSA and DSA signatures to protect against side channel 5312 attacks discovered by Keegan Ryan (NCC Group). 5313 5314 *Matt Caswell* 5315 5316 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5317 now allow empty (zero character) pass phrases. 5318 5319 *Richard Levitte* 5320 5321 * Certificate time validation (X509_cmp_time) enforces stricter 5322 compliance with RFC 5280. Fractional seconds and timezone offsets 5323 are no longer allowed. 5324 5325 *Emilia Käsper* 5326 5327### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5328 5329 * Constructed ASN.1 types with a recursive definition could exceed the stack 5330 5331 Constructed ASN.1 types with a recursive definition (such as can be found 5332 in PKCS7) could eventually exceed the stack given malicious input with 5333 excessive recursion. This could result in a Denial Of Service attack. There 5334 are no such structures used within SSL/TLS that come from untrusted sources 5335 so this is considered safe. 5336 5337 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5338 project. 5339 ([CVE-2018-0739]) 5340 5341 *Matt Caswell* 5342 5343### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5344 5345 * Read/write after SSL object in error state 5346 5347 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5348 mechanism. The intent was that if a fatal error occurred during a handshake 5349 then OpenSSL would move into the error state and would immediately fail if 5350 you attempted to continue the handshake. This works as designed for the 5351 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5352 SSL_connect()), however due to a bug it does not work correctly if 5353 SSL_read() or SSL_write() is called directly. In that scenario, if the 5354 handshake fails then a fatal error will be returned in the initial function 5355 call. If SSL_read()/SSL_write() is subsequently called by the application 5356 for the same SSL object then it will succeed and the data is passed without 5357 being decrypted/encrypted directly from the SSL/TLS record layer. 5358 5359 In order to exploit this issue an application bug would have to be present 5360 that resulted in a call to SSL_read()/SSL_write() being issued after having 5361 already received a fatal error. 5362 5363 This issue was reported to OpenSSL by David Benjamin (Google). 5364 ([CVE-2017-3737]) 5365 5366 *Matt Caswell* 5367 5368 * rsaz_1024_mul_avx2 overflow bug on x86_64 5369 5370 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5371 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5372 Analysis suggests that attacks against RSA and DSA as a result of this 5373 defect would be very difficult to perform and are not believed likely. 5374 Attacks against DH1024 are considered just feasible, because most of the 5375 work necessary to deduce information about a private key may be performed 5376 offline. The amount of resources required for such an attack would be 5377 significant. However, for an attack on TLS to be meaningful, the server 5378 would have to share the DH1024 private key among multiple clients, which is 5379 no longer an option since CVE-2016-0701. 5380 5381 This only affects processors that support the AVX2 but not ADX extensions 5382 like Intel Haswell (4th generation). 5383 5384 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5385 was originally found via the OSS-Fuzz project. 5386 ([CVE-2017-3738]) 5387 5388 *Andy Polyakov* 5389 5390### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5391 5392 * bn_sqrx8x_internal carry bug on x86_64 5393 5394 There is a carry propagating bug in the x86_64 Montgomery squaring 5395 procedure. No EC algorithms are affected. Analysis suggests that attacks 5396 against RSA and DSA as a result of this defect would be very difficult to 5397 perform and are not believed likely. Attacks against DH are considered just 5398 feasible (although very difficult) because most of the work necessary to 5399 deduce information about a private key may be performed offline. The amount 5400 of resources required for such an attack would be very significant and 5401 likely only accessible to a limited number of attackers. An attacker would 5402 additionally need online access to an unpatched system using the target 5403 private key in a scenario with persistent DH parameters and a private 5404 key that is shared between multiple clients. 5405 5406 This only affects processors that support the BMI1, BMI2 and ADX extensions 5407 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5408 5409 This issue was reported to OpenSSL by the OSS-Fuzz project. 5410 ([CVE-2017-3736]) 5411 5412 *Andy Polyakov* 5413 5414 * Malformed X.509 IPAddressFamily could cause OOB read 5415 5416 If an X.509 certificate has a malformed IPAddressFamily extension, 5417 OpenSSL could do a one-byte buffer overread. The most likely result 5418 would be an erroneous display of the certificate in text format. 5419 5420 This issue was reported to OpenSSL by the OSS-Fuzz project. 5421 5422 *Rich Salz* 5423 5424### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5425 5426 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5427 platform rather than 'mingw'. 5428 5429 *Richard Levitte* 5430 5431### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5432 5433 * Truncated packet could crash via OOB read 5434 5435 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5436 cipher is being used, then a truncated packet can cause that host to 5437 perform an out-of-bounds read, usually resulting in a crash. 5438 5439 This issue was reported to OpenSSL by Robert Święcki of Google. 5440 ([CVE-2017-3731]) 5441 5442 *Andy Polyakov* 5443 5444 * BN_mod_exp may produce incorrect results on x86_64 5445 5446 There is a carry propagating bug in the x86_64 Montgomery squaring 5447 procedure. No EC algorithms are affected. Analysis suggests that attacks 5448 against RSA and DSA as a result of this defect would be very difficult to 5449 perform and are not believed likely. Attacks against DH are considered just 5450 feasible (although very difficult) because most of the work necessary to 5451 deduce information about a private key may be performed offline. The amount 5452 of resources required for such an attack would be very significant and 5453 likely only accessible to a limited number of attackers. An attacker would 5454 additionally need online access to an unpatched system using the target 5455 private key in a scenario with persistent DH parameters and a private 5456 key that is shared between multiple clients. For example this can occur by 5457 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5458 similar to CVE-2015-3193 but must be treated as a separate problem. 5459 5460 This issue was reported to OpenSSL by the OSS-Fuzz project. 5461 ([CVE-2017-3732]) 5462 5463 *Andy Polyakov* 5464 5465 * Montgomery multiplication may produce incorrect results 5466 5467 There is a carry propagating bug in the Broadwell-specific Montgomery 5468 multiplication procedure that handles input lengths divisible by, but 5469 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5470 and DH private keys are impossible. This is because the subroutine in 5471 question is not used in operations with the private key itself and an input 5472 of the attacker's direct choice. Otherwise the bug can manifest itself as 5473 transient authentication and key negotiation failures or reproducible 5474 erroneous outcome of public-key operations with specially crafted input. 5475 Among EC algorithms only Brainpool P-512 curves are affected and one 5476 presumably can attack ECDH key negotiation. Impact was not analyzed in 5477 detail, because pre-requisites for attack are considered unlikely. Namely 5478 multiple clients have to choose the curve in question and the server has to 5479 share the private key among them, neither of which is default behaviour. 5480 Even then only clients that chose the curve will be affected. 5481 5482 This issue was publicly reported as transient failures and was not 5483 initially recognized as a security issue. Thanks to Richard Morgan for 5484 providing reproducible case. 5485 ([CVE-2016-7055]) 5486 5487 *Andy Polyakov* 5488 5489 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5490 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5491 prevent issues where no progress is being made and the peer continually 5492 sends unrecognised record types, using up resources processing them. 5493 5494 *Matt Caswell* 5495 5496### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5497 5498 * Missing CRL sanity check 5499 5500 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5501 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5502 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5503 5504 This issue only affects the OpenSSL 1.0.2i 5505 ([CVE-2016-7052]) 5506 5507 *Matt Caswell* 5508 5509### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5510 5511 * OCSP Status Request extension unbounded memory growth 5512 5513 A malicious client can send an excessively large OCSP Status Request 5514 extension. If that client continually requests renegotiation, sending a 5515 large OCSP Status Request extension each time, then there will be unbounded 5516 memory growth on the server. This will eventually lead to a Denial Of 5517 Service attack through memory exhaustion. Servers with a default 5518 configuration are vulnerable even if they do not support OCSP. Builds using 5519 the "no-ocsp" build time option are not affected. 5520 5521 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5522 ([CVE-2016-6304]) 5523 5524 *Matt Caswell* 5525 5526 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5527 HIGH to MEDIUM. 5528 5529 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5530 Leurent (INRIA) 5531 ([CVE-2016-2183]) 5532 5533 *Rich Salz* 5534 5535 * OOB write in MDC2_Update() 5536 5537 An overflow can occur in MDC2_Update() either if called directly or 5538 through the EVP_DigestUpdate() function using MDC2. If an attacker 5539 is able to supply very large amounts of input data after a previous 5540 call to EVP_EncryptUpdate() with a partial block then a length check 5541 can overflow resulting in a heap corruption. 5542 5543 The amount of data needed is comparable to SIZE_MAX which is impractical 5544 on most platforms. 5545 5546 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5547 ([CVE-2016-6303]) 5548 5549 *Stephen Henson* 5550 5551 * Malformed SHA512 ticket DoS 5552 5553 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5554 DoS attack where a malformed ticket will result in an OOB read which will 5555 ultimately crash. 5556 5557 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5558 a custom server callback and ticket lookup mechanism. 5559 5560 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5561 ([CVE-2016-6302]) 5562 5563 *Stephen Henson* 5564 5565 * OOB write in BN_bn2dec() 5566 5567 The function BN_bn2dec() does not check the return value of BN_div_word(). 5568 This can cause an OOB write if an application uses this function with an 5569 overly large BIGNUM. This could be a problem if an overly large certificate 5570 or CRL is printed out from an untrusted source. TLS is not affected because 5571 record limits will reject an oversized certificate before it is parsed. 5572 5573 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5574 ([CVE-2016-2182]) 5575 5576 *Stephen Henson* 5577 5578 * OOB read in TS_OBJ_print_bio() 5579 5580 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5581 the total length the OID text representation would use and not the amount 5582 of data written. This will result in OOB reads when large OIDs are 5583 presented. 5584 5585 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5586 ([CVE-2016-2180]) 5587 5588 *Stephen Henson* 5589 5590 * Pointer arithmetic undefined behaviour 5591 5592 Avoid some undefined pointer arithmetic 5593 5594 A common idiom in the codebase is to check limits in the following manner: 5595 "p + len > limit" 5596 5597 Where "p" points to some malloc'd data of SIZE bytes and 5598 limit == p + SIZE 5599 5600 "len" here could be from some externally supplied data (e.g. from a TLS 5601 message). 5602 5603 The rules of C pointer arithmetic are such that "p + len" is only well 5604 defined where len <= SIZE. Therefore the above idiom is actually 5605 undefined behaviour. 5606 5607 For example this could cause problems if some malloc implementation 5608 provides an address for "p" such that "p + len" actually overflows for 5609 values of len that are too big and therefore p + len < limit. 5610 5611 This issue was reported to OpenSSL by Guido Vranken 5612 ([CVE-2016-2177]) 5613 5614 *Matt Caswell* 5615 5616 * Constant time flag not preserved in DSA signing 5617 5618 Operations in the DSA signing algorithm should run in constant time in 5619 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5620 implementation means that a non-constant time codepath is followed for 5621 certain operations. This has been demonstrated through a cache-timing 5622 attack to be sufficient for an attacker to recover the private DSA key. 5623 5624 This issue was reported by César Pereida (Aalto University), Billy Brumley 5625 (Tampere University of Technology), and Yuval Yarom (The University of 5626 Adelaide and NICTA). 5627 ([CVE-2016-2178]) 5628 5629 *César Pereida* 5630 5631 * DTLS buffered message DoS 5632 5633 In a DTLS connection where handshake messages are delivered out-of-order 5634 those messages that OpenSSL is not yet ready to process will be buffered 5635 for later use. Under certain circumstances, a flaw in the logic means that 5636 those messages do not get removed from the buffer even though the handshake 5637 has been completed. An attacker could force up to approx. 15 messages to 5638 remain in the buffer when they are no longer required. These messages will 5639 be cleared when the DTLS connection is closed. The default maximum size for 5640 a message is 100k. Therefore the attacker could force an additional 1500k 5641 to be consumed per connection. By opening many simulataneous connections an 5642 attacker could cause a DoS attack through memory exhaustion. 5643 5644 This issue was reported to OpenSSL by Quan Luo. 5645 ([CVE-2016-2179]) 5646 5647 *Matt Caswell* 5648 5649 * DTLS replay protection DoS 5650 5651 A flaw in the DTLS replay attack protection mechanism means that records 5652 that arrive for future epochs update the replay protection "window" before 5653 the MAC for the record has been validated. This could be exploited by an 5654 attacker by sending a record for the next epoch (which does not have to 5655 decrypt or have a valid MAC), with a very large sequence number. This means 5656 that all subsequent legitimate packets are dropped causing a denial of 5657 service for a specific DTLS connection. 5658 5659 This issue was reported to OpenSSL by the OCAP audit team. 5660 ([CVE-2016-2181]) 5661 5662 *Matt Caswell* 5663 5664 * Certificate message OOB reads 5665 5666 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5667 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5668 theoretical DoS risk but this has not been observed in practice on common 5669 platforms. 5670 5671 The messages affected are client certificate, client certificate request 5672 and server certificate. As a result the attack can only be performed 5673 against a client or a server which enables client authentication. 5674 5675 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5676 ([CVE-2016-6306]) 5677 5678 *Stephen Henson* 5679 5680### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5681 5682 * Prevent padding oracle in AES-NI CBC MAC check 5683 5684 A MITM attacker can use a padding oracle attack to decrypt traffic 5685 when the connection uses an AES CBC cipher and the server support 5686 AES-NI. 5687 5688 This issue was introduced as part of the fix for Lucky 13 padding 5689 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5690 constant time by making sure that always the same bytes are read and 5691 compared against either the MAC or padding bytes. But it no longer 5692 checked that there was enough data to have both the MAC and padding 5693 bytes. 5694 5695 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5696 5697 *Kurt Roeckx* 5698 5699 * Fix EVP_EncodeUpdate overflow 5700 5701 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5702 Base64 encoding of binary data. If an attacker is able to supply very large 5703 amounts of input data then a length check can overflow resulting in a heap 5704 corruption. 5705 5706 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5707 the `PEM_write_bio*` family of functions. These are mainly used within the 5708 OpenSSL command line applications, so any application which processes data 5709 from an untrusted source and outputs it as a PEM file should be considered 5710 vulnerable to this issue. User applications that call these APIs directly 5711 with large amounts of untrusted data may also be vulnerable. 5712 5713 This issue was reported by Guido Vranken. 5714 ([CVE-2016-2105]) 5715 5716 *Matt Caswell* 5717 5718 * Fix EVP_EncryptUpdate overflow 5719 5720 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5721 is able to supply very large amounts of input data after a previous call to 5722 EVP_EncryptUpdate() with a partial block then a length check can overflow 5723 resulting in a heap corruption. Following an analysis of all OpenSSL 5724 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5725 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5726 the first called function after an EVP_EncryptInit(), and therefore that 5727 specific call must be safe. The second form is where the length passed to 5728 EVP_EncryptUpdate() can be seen from the code to be some small value and 5729 therefore there is no possibility of an overflow. Since all instances are 5730 one of these two forms, it is believed that there can be no overflows in 5731 internal code due to this problem. It should be noted that 5732 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5733 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5734 of these calls have also been analysed too and it is believed there are no 5735 instances in internal usage where an overflow could occur. 5736 5737 This issue was reported by Guido Vranken. 5738 ([CVE-2016-2106]) 5739 5740 *Matt Caswell* 5741 5742 * Prevent ASN.1 BIO excessive memory allocation 5743 5744 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5745 a short invalid encoding can cause allocation of large amounts of memory 5746 potentially consuming excessive resources or exhausting memory. 5747 5748 Any application parsing untrusted data through d2i BIO functions is 5749 affected. The memory based functions such as d2i_X509() are *not* affected. 5750 Since the memory based functions are used by the TLS library, TLS 5751 applications are not affected. 5752 5753 This issue was reported by Brian Carpenter. 5754 ([CVE-2016-2109]) 5755 5756 *Stephen Henson* 5757 5758 * EBCDIC overread 5759 5760 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5761 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5762 in arbitrary stack data being returned in the buffer. 5763 5764 This issue was reported by Guido Vranken. 5765 ([CVE-2016-2176]) 5766 5767 *Matt Caswell* 5768 5769 * Modify behavior of ALPN to invoke callback after SNI/servername 5770 callback, such that updates to the SSL_CTX affect ALPN. 5771 5772 *Todd Short* 5773 5774 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5775 default. 5776 5777 *Kurt Roeckx* 5778 5779 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5780 methods are enabled and ssl2 is disabled the methods return NULL. 5781 5782 *Kurt Roeckx* 5783 5784### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5785 5786* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 5787 Builds that are not configured with "enable-weak-ssl-ciphers" will not 5788 provide any "EXPORT" or "LOW" strength ciphers. 5789 5790 *Viktor Dukhovni* 5791 5792* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 5793 is by default disabled at build-time. Builds that are not configured with 5794 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 5795 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 5796 will need to explicitly call either of: 5797 5798 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 5799 or 5800 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 5801 5802 as appropriate. Even if either of those is used, or the application 5803 explicitly uses the version-specific SSLv2_method() or its client and 5804 server variants, SSLv2 ciphers vulnerable to exhaustive search key 5805 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 5806 ciphers, and SSLv2 56-bit DES are no longer available. 5807 ([CVE-2016-0800]) 5808 5809 *Viktor Dukhovni* 5810 5811 * Fix a double-free in DSA code 5812 5813 A double free bug was discovered when OpenSSL parses malformed DSA private 5814 keys and could lead to a DoS attack or memory corruption for applications 5815 that receive DSA private keys from untrusted sources. This scenario is 5816 considered rare. 5817 5818 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 5819 libFuzzer. 5820 ([CVE-2016-0705]) 5821 5822 *Stephen Henson* 5823 5824 * Disable SRP fake user seed to address a server memory leak. 5825 5826 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 5827 5828 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 5829 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 5830 was changed to ignore the "fake user" SRP seed, even if the seed 5831 is configured. 5832 5833 Users should use SRP_VBASE_get1_by_user instead. Note that in 5834 SRP_VBASE_get1_by_user, caller must free the returned value. Note 5835 also that even though configuring the SRP seed attempts to hide 5836 invalid usernames by continuing the handshake with fake 5837 credentials, this behaviour is not constant time and no strong 5838 guarantees are made that the handshake is indistinguishable from 5839 that of a valid user. 5840 ([CVE-2016-0798]) 5841 5842 *Emilia Käsper* 5843 5844 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 5845 5846 In the BN_hex2bn function the number of hex digits is calculated using an 5847 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 5848 large values of `i` this can result in `bn_expand` not allocating any 5849 memory because `i * 4` is negative. This can leave the internal BIGNUM data 5850 field as NULL leading to a subsequent NULL ptr deref. For very large values 5851 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 5852 In this case memory is allocated to the internal BIGNUM data field, but it 5853 is insufficiently sized leading to heap corruption. A similar issue exists 5854 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 5855 is ever called by user applications with very large untrusted hex/dec data. 5856 This is anticipated to be a rare occurrence. 5857 5858 All OpenSSL internal usage of these functions use data that is not expected 5859 to be untrusted, e.g. config file data or application command line 5860 arguments. If user developed applications generate config file data based 5861 on untrusted data then it is possible that this could also lead to security 5862 consequences. This is also anticipated to be rare. 5863 5864 This issue was reported to OpenSSL by Guido Vranken. 5865 ([CVE-2016-0797]) 5866 5867 *Matt Caswell* 5868 5869 * Fix memory issues in `BIO_*printf` functions 5870 5871 The internal `fmtstr` function used in processing a "%s" format string in 5872 the `BIO_*printf` functions could overflow while calculating the length of a 5873 string and cause an OOB read when printing very long strings. 5874 5875 Additionally the internal `doapr_outch` function can attempt to write to an 5876 OOB memory location (at an offset from the NULL pointer) in the event of a 5877 memory allocation failure. In 1.0.2 and below this could be caused where 5878 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 5879 could be in processing a very long "%s" format string. Memory leaks can 5880 also occur. 5881 5882 The first issue may mask the second issue dependent on compiler behaviour. 5883 These problems could enable attacks where large amounts of untrusted data 5884 is passed to the `BIO_*printf` functions. If applications use these functions 5885 in this way then they could be vulnerable. OpenSSL itself uses these 5886 functions when printing out human-readable dumps of ASN.1 data. Therefore 5887 applications that print this data could be vulnerable if the data is from 5888 untrusted sources. OpenSSL command line applications could also be 5889 vulnerable where they print out ASN.1 data, or if untrusted data is passed 5890 as command line arguments. 5891 5892 Libssl is not considered directly vulnerable. Additionally certificates etc 5893 received via remote connections via libssl are also unlikely to be able to 5894 trigger these issues because of message size limits enforced within libssl. 5895 5896 This issue was reported to OpenSSL Guido Vranken. 5897 ([CVE-2016-0799]) 5898 5899 *Matt Caswell* 5900 5901 * Side channel attack on modular exponentiation 5902 5903 A side-channel attack was found which makes use of cache-bank conflicts on 5904 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 5905 of RSA keys. The ability to exploit this issue is limited as it relies on 5906 an attacker who has control of code in a thread running on the same 5907 hyper-threaded core as the victim thread which is performing decryptions. 5908 5909 This issue was reported to OpenSSL by Yuval Yarom, The University of 5910 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 5911 Nadia Heninger, University of Pennsylvania with more information at 5912 <http://cachebleed.info>. 5913 ([CVE-2016-0702]) 5914 5915 *Andy Polyakov* 5916 5917 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 5918 if no keysize is specified with default_bits. This fixes an 5919 omission in an earlier change that changed all RSA/DSA key generation 5920 commands to use 2048 bits by default. 5921 5922 *Emilia Käsper* 5923 5924### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 5925 5926 * DH small subgroups 5927 5928 Historically OpenSSL only ever generated DH parameters based on "safe" 5929 primes. More recently (in version 1.0.2) support was provided for 5930 generating X9.42 style parameter files such as those required for RFC 5114 5931 support. The primes used in such files may not be "safe". Where an 5932 application is using DH configured with parameters based on primes that are 5933 not "safe" then an attacker could use this fact to find a peer's private 5934 DH exponent. This attack requires that the attacker complete multiple 5935 handshakes in which the peer uses the same private DH exponent. For example 5936 this could be used to discover a TLS server's private DH exponent if it's 5937 reusing the private DH exponent or it's using a static DH ciphersuite. 5938 5939 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 5940 TLS. It is not on by default. If the option is not set then the server 5941 reuses the same private DH exponent for the life of the server process and 5942 would be vulnerable to this attack. It is believed that many popular 5943 applications do set this option and would therefore not be at risk. 5944 5945 The fix for this issue adds an additional check where a "q" parameter is 5946 available (as is the case in X9.42 based parameters). This detects the 5947 only known attack, and is the only possible defense for static DH 5948 ciphersuites. This could have some performance impact. 5949 5950 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 5951 default and cannot be disabled. This could have some performance impact. 5952 5953 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 5954 ([CVE-2016-0701]) 5955 5956 *Matt Caswell* 5957 5958 * SSLv2 doesn't block disabled ciphers 5959 5960 A malicious client can negotiate SSLv2 ciphers that have been disabled on 5961 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 5962 been disabled, provided that the SSLv2 protocol was not also disabled via 5963 SSL_OP_NO_SSLv2. 5964 5965 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 5966 and Sebastian Schinzel. 5967 ([CVE-2015-3197]) 5968 5969 *Viktor Dukhovni* 5970 5971### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 5972 5973 * BN_mod_exp may produce incorrect results on x86_64 5974 5975 There is a carry propagating bug in the x86_64 Montgomery squaring 5976 procedure. No EC algorithms are affected. Analysis suggests that attacks 5977 against RSA and DSA as a result of this defect would be very difficult to 5978 perform and are not believed likely. Attacks against DH are considered just 5979 feasible (although very difficult) because most of the work necessary to 5980 deduce information about a private key may be performed offline. The amount 5981 of resources required for such an attack would be very significant and 5982 likely only accessible to a limited number of attackers. An attacker would 5983 additionally need online access to an unpatched system using the target 5984 private key in a scenario with persistent DH parameters and a private 5985 key that is shared between multiple clients. For example this can occur by 5986 default in OpenSSL DHE based SSL/TLS ciphersuites. 5987 5988 This issue was reported to OpenSSL by Hanno Böck. 5989 ([CVE-2015-3193]) 5990 5991 *Andy Polyakov* 5992 5993 * Certificate verify crash with missing PSS parameter 5994 5995 The signature verification routines will crash with a NULL pointer 5996 dereference if presented with an ASN.1 signature using the RSA PSS 5997 algorithm and absent mask generation function parameter. Since these 5998 routines are used to verify certificate signature algorithms this can be 5999 used to crash any certificate verification operation and exploited in a 6000 DoS attack. Any application which performs certificate verification is 6001 vulnerable including OpenSSL clients and servers which enable client 6002 authentication. 6003 6004 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 6005 ([CVE-2015-3194]) 6006 6007 *Stephen Henson* 6008 6009 * X509_ATTRIBUTE memory leak 6010 6011 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 6012 memory. This structure is used by the PKCS#7 and CMS routines so any 6013 application which reads PKCS#7 or CMS data from untrusted sources is 6014 affected. SSL/TLS is not affected. 6015 6016 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 6017 libFuzzer. 6018 ([CVE-2015-3195]) 6019 6020 *Stephen Henson* 6021 6022 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 6023 This changes the decoding behaviour for some invalid messages, 6024 though the change is mostly in the more lenient direction, and 6025 legacy behaviour is preserved as much as possible. 6026 6027 *Emilia Käsper* 6028 6029 * In DSA_generate_parameters_ex, if the provided seed is too short, 6030 return an error 6031 6032 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 6033 6034### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6035 6036 * Alternate chains certificate forgery 6037 6038 During certificate verification, OpenSSL will attempt to find an 6039 alternative certificate chain if the first attempt to build such a chain 6040 fails. An error in the implementation of this logic can mean that an 6041 attacker could cause certain checks on untrusted certificates to be 6042 bypassed, such as the CA flag, enabling them to use a valid leaf 6043 certificate to act as a CA and "issue" an invalid certificate. 6044 6045 This issue was reported to OpenSSL by Adam Langley/David Benjamin 6046 (Google/BoringSSL). 6047 6048 *Matt Caswell* 6049 6050### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 6051 6052 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 6053 incompatibility in the handling of HMAC. The previous ABI has now been 6054 restored. 6055 6056 *Matt Caswell* 6057 6058### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 6059 6060 * Malformed ECParameters causes infinite loop 6061 6062 When processing an ECParameters structure OpenSSL enters an infinite loop 6063 if the curve specified is over a specially malformed binary polynomial 6064 field. 6065 6066 This can be used to perform denial of service against any 6067 system which processes public keys, certificate requests or 6068 certificates. This includes TLS clients and TLS servers with 6069 client authentication enabled. 6070 6071 This issue was reported to OpenSSL by Joseph Barr-Pixton. 6072 ([CVE-2015-1788]) 6073 6074 *Andy Polyakov* 6075 6076 * Exploitable out-of-bounds read in X509_cmp_time 6077 6078 X509_cmp_time does not properly check the length of the ASN1_TIME 6079 string and can read a few bytes out of bounds. In addition, 6080 X509_cmp_time accepts an arbitrary number of fractional seconds in the 6081 time string. 6082 6083 An attacker can use this to craft malformed certificates and CRLs of 6084 various sizes and potentially cause a segmentation fault, resulting in 6085 a DoS on applications that verify certificates or CRLs. TLS clients 6086 that verify CRLs are affected. TLS clients and servers with client 6087 authentication enabled may be affected if they use custom verification 6088 callbacks. 6089 6090 This issue was reported to OpenSSL by Robert Swiecki (Google), and 6091 independently by Hanno Böck. 6092 ([CVE-2015-1789]) 6093 6094 *Emilia Käsper* 6095 6096 * PKCS7 crash with missing EnvelopedContent 6097 6098 The PKCS#7 parsing code does not handle missing inner EncryptedContent 6099 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 6100 with missing content and trigger a NULL pointer dereference on parsing. 6101 6102 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 6103 structures from untrusted sources are affected. OpenSSL clients and 6104 servers are not affected. 6105 6106 This issue was reported to OpenSSL by Michal Zalewski (Google). 6107 ([CVE-2015-1790]) 6108 6109 *Emilia Käsper* 6110 6111 * CMS verify infinite loop with unknown hash function 6112 6113 When verifying a signedData message the CMS code can enter an infinite loop 6114 if presented with an unknown hash function OID. This can be used to perform 6115 denial of service against any system which verifies signedData messages using 6116 the CMS code. 6117 This issue was reported to OpenSSL by Johannes Bauer. 6118 ([CVE-2015-1792]) 6119 6120 *Stephen Henson* 6121 6122 * Race condition handling NewSessionTicket 6123 6124 If a NewSessionTicket is received by a multi-threaded client when attempting to 6125 reuse a previous ticket then a race condition can occur potentially leading to 6126 a double free of the ticket data. 6127 ([CVE-2015-1791]) 6128 6129 *Matt Caswell* 6130 6131 * Only support 256-bit or stronger elliptic curves with the 6132 'ecdh_auto' setting (server) or by default (client). Of supported 6133 curves, prefer P-256 (both). 6134 6135 *Emilia Kasper* 6136 6137### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 6138 6139 * ClientHello sigalgs DoS fix 6140 6141 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 6142 invalid signature algorithms extension a NULL pointer dereference will 6143 occur. This can be exploited in a DoS attack against the server. 6144 6145 This issue was was reported to OpenSSL by David Ramos of Stanford 6146 University. 6147 ([CVE-2015-0291]) 6148 6149 *Stephen Henson and Matt Caswell* 6150 6151 * Multiblock corrupted pointer fix 6152 6153 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 6154 feature only applies on 64 bit x86 architecture platforms that support AES 6155 NI instructions. A defect in the implementation of "multiblock" can cause 6156 OpenSSL's internal write buffer to become incorrectly set to NULL when 6157 using non-blocking IO. Typically, when the user application is using a 6158 socket BIO for writing, this will only result in a failed connection. 6159 However if some other BIO is used then it is likely that a segmentation 6160 fault will be triggered, thus enabling a potential DoS attack. 6161 6162 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6163 ([CVE-2015-0290]) 6164 6165 *Matt Caswell* 6166 6167 * Segmentation fault in DTLSv1_listen fix 6168 6169 The DTLSv1_listen function is intended to be stateless and processes the 6170 initial ClientHello from many peers. It is common for user code to loop 6171 over the call to DTLSv1_listen until a valid ClientHello is received with 6172 an associated cookie. A defect in the implementation of DTLSv1_listen means 6173 that state is preserved in the SSL object from one invocation to the next 6174 that can lead to a segmentation fault. Errors processing the initial 6175 ClientHello can trigger this scenario. An example of such an error could be 6176 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6177 server. 6178 6179 This issue was reported to OpenSSL by Per Allansson. 6180 ([CVE-2015-0207]) 6181 6182 *Matt Caswell* 6183 6184 * Segmentation fault in ASN1_TYPE_cmp fix 6185 6186 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6187 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6188 certificate signature algorithm consistency this can be used to crash any 6189 certificate verification operation and exploited in a DoS attack. Any 6190 application which performs certificate verification is vulnerable including 6191 OpenSSL clients and servers which enable client authentication. 6192 ([CVE-2015-0286]) 6193 6194 *Stephen Henson* 6195 6196 * Segmentation fault for invalid PSS parameters fix 6197 6198 The signature verification routines will crash with a NULL pointer 6199 dereference if presented with an ASN.1 signature using the RSA PSS 6200 algorithm and invalid parameters. Since these routines are used to verify 6201 certificate signature algorithms this can be used to crash any 6202 certificate verification operation and exploited in a DoS attack. Any 6203 application which performs certificate verification is vulnerable including 6204 OpenSSL clients and servers which enable client authentication. 6205 6206 This issue was was reported to OpenSSL by Brian Carpenter. 6207 ([CVE-2015-0208]) 6208 6209 *Stephen Henson* 6210 6211 * ASN.1 structure reuse memory corruption fix 6212 6213 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6214 memory corruption via an invalid write. Such reuse is and has been 6215 strongly discouraged and is believed to be rare. 6216 6217 Applications that parse structures containing CHOICE or ANY DEFINED BY 6218 components may be affected. Certificate parsing (d2i_X509 and related 6219 functions) are however not affected. OpenSSL clients and servers are 6220 not affected. 6221 ([CVE-2015-0287]) 6222 6223 *Stephen Henson* 6224 6225 * PKCS7 NULL pointer dereferences fix 6226 6227 The PKCS#7 parsing code does not handle missing outer ContentInfo 6228 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6229 missing content and trigger a NULL pointer dereference on parsing. 6230 6231 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6232 otherwise parse PKCS#7 structures from untrusted sources are 6233 affected. OpenSSL clients and servers are not affected. 6234 6235 This issue was reported to OpenSSL by Michal Zalewski (Google). 6236 ([CVE-2015-0289]) 6237 6238 *Emilia Käsper* 6239 6240 * DoS via reachable assert in SSLv2 servers fix 6241 6242 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6243 servers that both support SSLv2 and enable export cipher suites by sending 6244 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6245 6246 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6247 (OpenSSL development team). 6248 ([CVE-2015-0293]) 6249 6250 *Emilia Käsper* 6251 6252 * Empty CKE with client auth and DHE fix 6253 6254 If client auth is used then a server can seg fault in the event of a DHE 6255 ciphersuite being selected and a zero length ClientKeyExchange message 6256 being sent by the client. This could be exploited in a DoS attack. 6257 ([CVE-2015-1787]) 6258 6259 *Matt Caswell* 6260 6261 * Handshake with unseeded PRNG fix 6262 6263 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6264 with an unseeded PRNG. The conditions are: 6265 - The client is on a platform where the PRNG has not been seeded 6266 automatically, and the user has not seeded manually 6267 - A protocol specific client method version has been used (i.e. not 6268 SSL_client_methodv23) 6269 - A ciphersuite is used that does not require additional random data from 6270 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6271 6272 If the handshake succeeds then the client random that has been used will 6273 have been generated from a PRNG with insufficient entropy and therefore the 6274 output may be predictable. 6275 6276 For example using the following command with an unseeded openssl will 6277 succeed on an unpatched platform: 6278 6279 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6280 ([CVE-2015-0285]) 6281 6282 *Matt Caswell* 6283 6284 * Use After Free following d2i_ECPrivatekey error fix 6285 6286 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6287 could cause a use after free condition. This, in turn, could cause a double 6288 free in several private key parsing functions (such as d2i_PrivateKey 6289 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6290 for applications that receive EC private keys from untrusted 6291 sources. This scenario is considered rare. 6292 6293 This issue was discovered by the BoringSSL project and fixed in their 6294 commit 517073cd4b. 6295 ([CVE-2015-0209]) 6296 6297 *Matt Caswell* 6298 6299 * X509_to_X509_REQ NULL pointer deref fix 6300 6301 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6302 the certificate key is invalid. This function is rarely used in practice. 6303 6304 This issue was discovered by Brian Carpenter. 6305 ([CVE-2015-0288]) 6306 6307 *Stephen Henson* 6308 6309 * Removed the export ciphers from the DEFAULT ciphers 6310 6311 *Kurt Roeckx* 6312 6313### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6314 6315 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6316 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6317 So far those who have to target multiple platforms would compromise 6318 and argue that binary targeting say ARMv5 would still execute on 6319 ARMv8. "Universal" build resolves this compromise by providing 6320 near-optimal performance even on newer platforms. 6321 6322 *Andy Polyakov* 6323 6324 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6325 (other platforms pending). 6326 6327 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6328 6329 * Add support for the SignedCertificateTimestampList certificate and 6330 OCSP response extensions from RFC6962. 6331 6332 *Rob Stradling* 6333 6334 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6335 for corner cases. (Certain input points at infinity could lead to 6336 bogus results, with non-infinity inputs mapped to infinity too.) 6337 6338 *Bodo Moeller* 6339 6340 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6341 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6342 common cases are optimized and there still is room for further 6343 improvements. Vector Permutation AES for Altivec is also added. 6344 6345 *Andy Polyakov* 6346 6347 * Add support for little-endian ppc64 Linux target. 6348 6349 *Marcelo Cerri (IBM)* 6350 6351 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6352 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6353 are optimized and there still is room for further improvements. 6354 Both 32- and 64-bit modes are supported. 6355 6356 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6357 6358 * Improved ARMv7 NEON support. 6359 6360 *Andy Polyakov* 6361 6362 * Support for SPARC Architecture 2011 crypto extensions, first 6363 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6364 SHA256/512, MD5, GHASH and modular exponentiation. 6365 6366 *Andy Polyakov, David Miller* 6367 6368 * Accelerated modular exponentiation for Intel processors, a.k.a. 6369 RSAZ. 6370 6371 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6372 6373 * Support for new and upcoming Intel processors, including AVX2, 6374 BMI and SHA ISA extensions. This includes additional "stitched" 6375 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6376 for TLS encrypt. 6377 6378 This work was sponsored by Intel Corp. 6379 6380 *Andy Polyakov* 6381 6382 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6383 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6384 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6385 6386 *Steve Henson* 6387 6388 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6389 this fixes a limitation in previous versions of OpenSSL. 6390 6391 *Steve Henson* 6392 6393 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6394 MGF1 digest and OAEP label. 6395 6396 *Steve Henson* 6397 6398 * Add EVP support for key wrapping algorithms, to avoid problems with 6399 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6400 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6401 algorithms and include tests cases. 6402 6403 *Steve Henson* 6404 6405 * Add functions to allocate and set the fields of an ECDSA_METHOD 6406 structure. 6407 6408 *Douglas E. Engert, Steve Henson* 6409 6410 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6411 difference in days and seconds between two tm or ASN1_TIME structures. 6412 6413 *Steve Henson* 6414 6415 * Add -rev test option to s_server to just reverse order of characters 6416 received by client and send back to server. Also prints an abbreviated 6417 summary of the connection parameters. 6418 6419 *Steve Henson* 6420 6421 * New option -brief for s_client and s_server to print out a brief summary 6422 of connection parameters. 6423 6424 *Steve Henson* 6425 6426 * Add callbacks for arbitrary TLS extensions. 6427 6428 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6429 6430 * New option -crl_download in several openssl utilities to download CRLs 6431 from CRLDP extension in certificates. 6432 6433 *Steve Henson* 6434 6435 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6436 6437 *Steve Henson* 6438 6439 * New function X509_CRL_diff to generate a delta CRL from the difference 6440 of two full CRLs. Add support to "crl" utility. 6441 6442 *Steve Henson* 6443 6444 * New functions to set lookup_crls function and to retrieve 6445 X509_STORE from X509_STORE_CTX. 6446 6447 *Steve Henson* 6448 6449 * Print out deprecated issuer and subject unique ID fields in 6450 certificates. 6451 6452 *Steve Henson* 6453 6454 * Extend OCSP I/O functions so they can be used for simple general purpose 6455 HTTP as well as OCSP. New wrapper function which can be used to download 6456 CRLs using the OCSP API. 6457 6458 *Steve Henson* 6459 6460 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6461 6462 *Steve Henson* 6463 6464 * `SSL_CONF*` functions. These provide a common framework for application 6465 configuration using configuration files or command lines. 6466 6467 *Steve Henson* 6468 6469 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6470 message callback and prints the results. Needs compile time option 6471 "enable-ssl-trace". New options to s_client and s_server to enable 6472 tracing. 6473 6474 *Steve Henson* 6475 6476 * New ctrl and macro to retrieve supported points extensions. 6477 Print out extension in s_server and s_client. 6478 6479 *Steve Henson* 6480 6481 * New functions to retrieve certificate signature and signature 6482 OID NID. 6483 6484 *Steve Henson* 6485 6486 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6487 client to OpenSSL. 6488 6489 *Steve Henson* 6490 6491 * New Suite B modes for TLS code. These use and enforce the requirements 6492 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6493 only use Suite B curves. The Suite B modes can be set by using the 6494 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6495 6496 *Steve Henson* 6497 6498 * New chain verification flags for Suite B levels of security. Check 6499 algorithms are acceptable when flags are set in X509_verify_cert. 6500 6501 *Steve Henson* 6502 6503 * Make tls1_check_chain return a set of flags indicating checks passed 6504 by a certificate chain. Add additional tests to handle client 6505 certificates: checks for matching certificate type and issuer name 6506 comparison. 6507 6508 *Steve Henson* 6509 6510 * If an attempt is made to use a signature algorithm not in the peer 6511 preference list abort the handshake. If client has no suitable 6512 signature algorithms in response to a certificate request do not 6513 use the certificate. 6514 6515 *Steve Henson* 6516 6517 * If server EC tmp key is not in client preference list abort handshake. 6518 6519 *Steve Henson* 6520 6521 * Add support for certificate stores in CERT structure. This makes it 6522 possible to have different stores per SSL structure or one store in 6523 the parent SSL_CTX. Include distinct stores for certificate chain 6524 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6525 to build and store a certificate chain in CERT structure: returning 6526 an error if the chain cannot be built: this will allow applications 6527 to test if a chain is correctly configured. 6528 6529 Note: if the CERT based stores are not set then the parent SSL_CTX 6530 store is used to retain compatibility with existing behaviour. 6531 6532 *Steve Henson* 6533 6534 * New function ssl_set_client_disabled to set a ciphersuite disabled 6535 mask based on the current session, check mask when sending client 6536 hello and checking the requested ciphersuite. 6537 6538 *Steve Henson* 6539 6540 * New ctrls to retrieve and set certificate types in a certificate 6541 request message. Print out received values in s_client. If certificate 6542 types is not set with custom values set sensible values based on 6543 supported signature algorithms. 6544 6545 *Steve Henson* 6546 6547 * Support for distinct client and server supported signature algorithms. 6548 6549 *Steve Henson* 6550 6551 * Add certificate callback. If set this is called whenever a certificate 6552 is required by client or server. An application can decide which 6553 certificate chain to present based on arbitrary criteria: for example 6554 supported signature algorithms. Add very simple example to s_server. 6555 This fixes many of the problems and restrictions of the existing client 6556 certificate callback: for example you can now clear an existing 6557 certificate and specify the whole chain. 6558 6559 *Steve Henson* 6560 6561 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6562 the certificate can be used for (if anything). Set valid_flags field 6563 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6564 to have similar checks in it. 6565 6566 Add new "cert_flags" field to CERT structure and include a "strict mode". 6567 This enforces some TLS certificate requirements (such as only permitting 6568 certificate signature algorithms contained in the supported algorithms 6569 extension) which some implementations ignore: this option should be used 6570 with caution as it could cause interoperability issues. 6571 6572 *Steve Henson* 6573 6574 * Update and tidy signature algorithm extension processing. Work out 6575 shared signature algorithms based on preferences and peer algorithms 6576 and print them out in s_client and s_server. Abort handshake if no 6577 shared signature algorithms. 6578 6579 *Steve Henson* 6580 6581 * Add new functions to allow customised supported signature algorithms 6582 for SSL and SSL_CTX structures. Add options to s_client and s_server 6583 to support them. 6584 6585 *Steve Henson* 6586 6587 * New function SSL_certs_clear() to delete all references to certificates 6588 from an SSL structure. Before this once a certificate had been added 6589 it couldn't be removed. 6590 6591 *Steve Henson* 6592 6593 * Integrate hostname, email address and IP address checking with certificate 6594 verification. New verify options supporting checking in openssl utility. 6595 6596 *Steve Henson* 6597 6598 * Fixes and wildcard matching support to hostname and email checking 6599 functions. Add manual page. 6600 6601 *Florian Weimer (Red Hat Product Security Team)* 6602 6603 * New functions to check a hostname email or IP address against a 6604 certificate. Add options x509 utility to print results of checks against 6605 a certificate. 6606 6607 *Steve Henson* 6608 6609 * Fix OCSP checking. 6610 6611 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6612 6613 * Initial experimental support for explicitly trusted non-root CAs. 6614 OpenSSL still tries to build a complete chain to a root but if an 6615 intermediate CA has a trust setting included that is used. The first 6616 setting is used: whether to trust (e.g., -addtrust option to the x509 6617 utility) or reject. 6618 6619 *Steve Henson* 6620 6621 * Add -trusted_first option which attempts to find certificates in the 6622 trusted store even if an untrusted chain is also supplied. 6623 6624 *Steve Henson* 6625 6626 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6627 platform support for Linux and Android. 6628 6629 *Andy Polyakov* 6630 6631 * Support for linux-x32, ILP32 environment in x86_64 framework. 6632 6633 *Andy Polyakov* 6634 6635 * Experimental multi-implementation support for FIPS capable OpenSSL. 6636 When in FIPS mode the approved implementations are used as normal, 6637 when not in FIPS mode the internal unapproved versions are used instead. 6638 This means that the FIPS capable OpenSSL isn't forced to use the 6639 (often lower performance) FIPS implementations outside FIPS mode. 6640 6641 *Steve Henson* 6642 6643 * Transparently support X9.42 DH parameters when calling 6644 PEM_read_bio_DHparameters. This means existing applications can handle 6645 the new parameter format automatically. 6646 6647 *Steve Henson* 6648 6649 * Initial experimental support for X9.42 DH parameter format: mainly 6650 to support use of 'q' parameter for RFC5114 parameters. 6651 6652 *Steve Henson* 6653 6654 * Add DH parameters from RFC5114 including test data to dhtest. 6655 6656 *Steve Henson* 6657 6658 * Support for automatic EC temporary key parameter selection. If enabled 6659 the most preferred EC parameters are automatically used instead of 6660 hardcoded fixed parameters. Now a server just has to call: 6661 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6662 support ECDH and use the most appropriate parameters. 6663 6664 *Steve Henson* 6665 6666 * Enhance and tidy EC curve and point format TLS extension code. Use 6667 static structures instead of allocation if default values are used. 6668 New ctrls to set curves we wish to support and to retrieve shared curves. 6669 Print out shared curves in s_server. New options to s_server and s_client 6670 to set list of supported curves. 6671 6672 *Steve Henson* 6673 6674 * New ctrls to retrieve supported signature algorithms and 6675 supported curve values as an array of NIDs. Extend openssl utility 6676 to print out received values. 6677 6678 *Steve Henson* 6679 6680 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6681 between NIDs and the more common NIST names such as "P-256". Enhance 6682 ecparam utility and ECC method to recognise the NIST names for curves. 6683 6684 *Steve Henson* 6685 6686 * Enhance SSL/TLS certificate chain handling to support different 6687 chains for each certificate instead of one chain in the parent SSL_CTX. 6688 6689 *Steve Henson* 6690 6691 * Support for fixed DH ciphersuite client authentication: where both 6692 server and client use DH certificates with common parameters. 6693 6694 *Steve Henson* 6695 6696 * Support for fixed DH ciphersuites: those requiring DH server 6697 certificates. 6698 6699 *Steve Henson* 6700 6701 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6702 the certificate. 6703 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6704 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6705 X509_CINF_get_signature were reverted post internal team review. 6706 6707OpenSSL 1.0.1 6708------------- 6709 6710### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6711 6712 * OCSP Status Request extension unbounded memory growth 6713 6714 A malicious client can send an excessively large OCSP Status Request 6715 extension. If that client continually requests renegotiation, sending a 6716 large OCSP Status Request extension each time, then there will be unbounded 6717 memory growth on the server. This will eventually lead to a Denial Of 6718 Service attack through memory exhaustion. Servers with a default 6719 configuration are vulnerable even if they do not support OCSP. Builds using 6720 the "no-ocsp" build time option are not affected. 6721 6722 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6723 ([CVE-2016-6304]) 6724 6725 *Matt Caswell* 6726 6727 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6728 HIGH to MEDIUM. 6729 6730 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6731 Leurent (INRIA) 6732 ([CVE-2016-2183]) 6733 6734 *Rich Salz* 6735 6736 * OOB write in MDC2_Update() 6737 6738 An overflow can occur in MDC2_Update() either if called directly or 6739 through the EVP_DigestUpdate() function using MDC2. If an attacker 6740 is able to supply very large amounts of input data after a previous 6741 call to EVP_EncryptUpdate() with a partial block then a length check 6742 can overflow resulting in a heap corruption. 6743 6744 The amount of data needed is comparable to SIZE_MAX which is impractical 6745 on most platforms. 6746 6747 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6748 ([CVE-2016-6303]) 6749 6750 *Stephen Henson* 6751 6752 * Malformed SHA512 ticket DoS 6753 6754 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6755 DoS attack where a malformed ticket will result in an OOB read which will 6756 ultimately crash. 6757 6758 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6759 a custom server callback and ticket lookup mechanism. 6760 6761 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6762 ([CVE-2016-6302]) 6763 6764 *Stephen Henson* 6765 6766 * OOB write in BN_bn2dec() 6767 6768 The function BN_bn2dec() does not check the return value of BN_div_word(). 6769 This can cause an OOB write if an application uses this function with an 6770 overly large BIGNUM. This could be a problem if an overly large certificate 6771 or CRL is printed out from an untrusted source. TLS is not affected because 6772 record limits will reject an oversized certificate before it is parsed. 6773 6774 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6775 ([CVE-2016-2182]) 6776 6777 *Stephen Henson* 6778 6779 * OOB read in TS_OBJ_print_bio() 6780 6781 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6782 the total length the OID text representation would use and not the amount 6783 of data written. This will result in OOB reads when large OIDs are 6784 presented. 6785 6786 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6787 ([CVE-2016-2180]) 6788 6789 *Stephen Henson* 6790 6791 * Pointer arithmetic undefined behaviour 6792 6793 Avoid some undefined pointer arithmetic 6794 6795 A common idiom in the codebase is to check limits in the following manner: 6796 "p + len > limit" 6797 6798 Where "p" points to some malloc'd data of SIZE bytes and 6799 limit == p + SIZE 6800 6801 "len" here could be from some externally supplied data (e.g. from a TLS 6802 message). 6803 6804 The rules of C pointer arithmetic are such that "p + len" is only well 6805 defined where len <= SIZE. Therefore the above idiom is actually 6806 undefined behaviour. 6807 6808 For example this could cause problems if some malloc implementation 6809 provides an address for "p" such that "p + len" actually overflows for 6810 values of len that are too big and therefore p + len < limit. 6811 6812 This issue was reported to OpenSSL by Guido Vranken 6813 ([CVE-2016-2177]) 6814 6815 *Matt Caswell* 6816 6817 * Constant time flag not preserved in DSA signing 6818 6819 Operations in the DSA signing algorithm should run in constant time in 6820 order to avoid side channel attacks. A flaw in the OpenSSL DSA 6821 implementation means that a non-constant time codepath is followed for 6822 certain operations. This has been demonstrated through a cache-timing 6823 attack to be sufficient for an attacker to recover the private DSA key. 6824 6825 This issue was reported by César Pereida (Aalto University), Billy Brumley 6826 (Tampere University of Technology), and Yuval Yarom (The University of 6827 Adelaide and NICTA). 6828 ([CVE-2016-2178]) 6829 6830 *César Pereida* 6831 6832 * DTLS buffered message DoS 6833 6834 In a DTLS connection where handshake messages are delivered out-of-order 6835 those messages that OpenSSL is not yet ready to process will be buffered 6836 for later use. Under certain circumstances, a flaw in the logic means that 6837 those messages do not get removed from the buffer even though the handshake 6838 has been completed. An attacker could force up to approx. 15 messages to 6839 remain in the buffer when they are no longer required. These messages will 6840 be cleared when the DTLS connection is closed. The default maximum size for 6841 a message is 100k. Therefore the attacker could force an additional 1500k 6842 to be consumed per connection. By opening many simulataneous connections an 6843 attacker could cause a DoS attack through memory exhaustion. 6844 6845 This issue was reported to OpenSSL by Quan Luo. 6846 ([CVE-2016-2179]) 6847 6848 *Matt Caswell* 6849 6850 * DTLS replay protection DoS 6851 6852 A flaw in the DTLS replay attack protection mechanism means that records 6853 that arrive for future epochs update the replay protection "window" before 6854 the MAC for the record has been validated. This could be exploited by an 6855 attacker by sending a record for the next epoch (which does not have to 6856 decrypt or have a valid MAC), with a very large sequence number. This means 6857 that all subsequent legitimate packets are dropped causing a denial of 6858 service for a specific DTLS connection. 6859 6860 This issue was reported to OpenSSL by the OCAP audit team. 6861 ([CVE-2016-2181]) 6862 6863 *Matt Caswell* 6864 6865 * Certificate message OOB reads 6866 6867 In OpenSSL 1.0.2 and earlier some missing message length checks can result 6868 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 6869 theoretical DoS risk but this has not been observed in practice on common 6870 platforms. 6871 6872 The messages affected are client certificate, client certificate request 6873 and server certificate. As a result the attack can only be performed 6874 against a client or a server which enables client authentication. 6875 6876 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6877 ([CVE-2016-6306]) 6878 6879 *Stephen Henson* 6880 6881### Changes between 1.0.1s and 1.0.1t [3 May 2016] 6882 6883 * Prevent padding oracle in AES-NI CBC MAC check 6884 6885 A MITM attacker can use a padding oracle attack to decrypt traffic 6886 when the connection uses an AES CBC cipher and the server support 6887 AES-NI. 6888 6889 This issue was introduced as part of the fix for Lucky 13 padding 6890 attack ([CVE-2013-0169]). The padding check was rewritten to be in 6891 constant time by making sure that always the same bytes are read and 6892 compared against either the MAC or padding bytes. But it no longer 6893 checked that there was enough data to have both the MAC and padding 6894 bytes. 6895 6896 This issue was reported by Juraj Somorovsky using TLS-Attacker. 6897 ([CVE-2016-2107]) 6898 6899 *Kurt Roeckx* 6900 6901 * Fix EVP_EncodeUpdate overflow 6902 6903 An overflow can occur in the EVP_EncodeUpdate() function which is used for 6904 Base64 encoding of binary data. If an attacker is able to supply very large 6905 amounts of input data then a length check can overflow resulting in a heap 6906 corruption. 6907 6908 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 6909 the `PEM_write_bio*` family of functions. These are mainly used within the 6910 OpenSSL command line applications, so any application which processes data 6911 from an untrusted source and outputs it as a PEM file should be considered 6912 vulnerable to this issue. User applications that call these APIs directly 6913 with large amounts of untrusted data may also be vulnerable. 6914 6915 This issue was reported by Guido Vranken. 6916 ([CVE-2016-2105]) 6917 6918 *Matt Caswell* 6919 6920 * Fix EVP_EncryptUpdate overflow 6921 6922 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 6923 is able to supply very large amounts of input data after a previous call to 6924 EVP_EncryptUpdate() with a partial block then a length check can overflow 6925 resulting in a heap corruption. Following an analysis of all OpenSSL 6926 internal usage of the EVP_EncryptUpdate() function all usage is one of two 6927 forms. The first form is where the EVP_EncryptUpdate() call is known to be 6928 the first called function after an EVP_EncryptInit(), and therefore that 6929 specific call must be safe. The second form is where the length passed to 6930 EVP_EncryptUpdate() can be seen from the code to be some small value and 6931 therefore there is no possibility of an overflow. Since all instances are 6932 one of these two forms, it is believed that there can be no overflows in 6933 internal code due to this problem. It should be noted that 6934 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 6935 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 6936 of these calls have also been analysed too and it is believed there are no 6937 instances in internal usage where an overflow could occur. 6938 6939 This issue was reported by Guido Vranken. 6940 ([CVE-2016-2106]) 6941 6942 *Matt Caswell* 6943 6944 * Prevent ASN.1 BIO excessive memory allocation 6945 6946 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 6947 a short invalid encoding can casuse allocation of large amounts of memory 6948 potentially consuming excessive resources or exhausting memory. 6949 6950 Any application parsing untrusted data through d2i BIO functions is 6951 affected. The memory based functions such as d2i_X509() are *not* affected. 6952 Since the memory based functions are used by the TLS library, TLS 6953 applications are not affected. 6954 6955 This issue was reported by Brian Carpenter. 6956 ([CVE-2016-2109]) 6957 6958 *Stephen Henson* 6959 6960 * EBCDIC overread 6961 6962 ASN1 Strings that are over 1024 bytes can cause an overread in applications 6963 using the X509_NAME_oneline() function on EBCDIC systems. This could result 6964 in arbitrary stack data being returned in the buffer. 6965 6966 This issue was reported by Guido Vranken. 6967 ([CVE-2016-2176]) 6968 6969 *Matt Caswell* 6970 6971 * Modify behavior of ALPN to invoke callback after SNI/servername 6972 callback, such that updates to the SSL_CTX affect ALPN. 6973 6974 *Todd Short* 6975 6976 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 6977 default. 6978 6979 *Kurt Roeckx* 6980 6981 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 6982 methods are enabled and ssl2 is disabled the methods return NULL. 6983 6984 *Kurt Roeckx* 6985 6986### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 6987 6988* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6989 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6990 provide any "EXPORT" or "LOW" strength ciphers. 6991 6992 *Viktor Dukhovni* 6993 6994* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6995 is by default disabled at build-time. Builds that are not configured with 6996 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6997 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6998 will need to explicitly call either of: 6999 7000 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 7001 or 7002 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 7003 7004 as appropriate. Even if either of those is used, or the application 7005 explicitly uses the version-specific SSLv2_method() or its client and 7006 server variants, SSLv2 ciphers vulnerable to exhaustive search key 7007 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 7008 ciphers, and SSLv2 56-bit DES are no longer available. 7009 ([CVE-2016-0800]) 7010 7011 *Viktor Dukhovni* 7012 7013 * Fix a double-free in DSA code 7014 7015 A double free bug was discovered when OpenSSL parses malformed DSA private 7016 keys and could lead to a DoS attack or memory corruption for applications 7017 that receive DSA private keys from untrusted sources. This scenario is 7018 considered rare. 7019 7020 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 7021 libFuzzer. 7022 ([CVE-2016-0705]) 7023 7024 *Stephen Henson* 7025 7026 * Disable SRP fake user seed to address a server memory leak. 7027 7028 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 7029 7030 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 7031 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7032 was changed to ignore the "fake user" SRP seed, even if the seed 7033 is configured. 7034 7035 Users should use SRP_VBASE_get1_by_user instead. Note that in 7036 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7037 also that even though configuring the SRP seed attempts to hide 7038 invalid usernames by continuing the handshake with fake 7039 credentials, this behaviour is not constant time and no strong 7040 guarantees are made that the handshake is indistinguishable from 7041 that of a valid user. 7042 ([CVE-2016-0798]) 7043 7044 *Emilia Käsper* 7045 7046 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7047 7048 In the BN_hex2bn function the number of hex digits is calculated using an 7049 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7050 large values of `i` this can result in `bn_expand` not allocating any 7051 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7052 field as NULL leading to a subsequent NULL ptr deref. For very large values 7053 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7054 In this case memory is allocated to the internal BIGNUM data field, but it 7055 is insufficiently sized leading to heap corruption. A similar issue exists 7056 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7057 is ever called by user applications with very large untrusted hex/dec data. 7058 This is anticipated to be a rare occurrence. 7059 7060 All OpenSSL internal usage of these functions use data that is not expected 7061 to be untrusted, e.g. config file data or application command line 7062 arguments. If user developed applications generate config file data based 7063 on untrusted data then it is possible that this could also lead to security 7064 consequences. This is also anticipated to be rare. 7065 7066 This issue was reported to OpenSSL by Guido Vranken. 7067 ([CVE-2016-0797]) 7068 7069 *Matt Caswell* 7070 7071 * Fix memory issues in `BIO_*printf` functions 7072 7073 The internal `fmtstr` function used in processing a "%s" format string in 7074 the `BIO_*printf` functions could overflow while calculating the length of a 7075 string and cause an OOB read when printing very long strings. 7076 7077 Additionally the internal `doapr_outch` function can attempt to write to an 7078 OOB memory location (at an offset from the NULL pointer) in the event of a 7079 memory allocation failure. In 1.0.2 and below this could be caused where 7080 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7081 could be in processing a very long "%s" format string. Memory leaks can 7082 also occur. 7083 7084 The first issue may mask the second issue dependent on compiler behaviour. 7085 These problems could enable attacks where large amounts of untrusted data 7086 is passed to the `BIO_*printf` functions. If applications use these functions 7087 in this way then they could be vulnerable. OpenSSL itself uses these 7088 functions when printing out human-readable dumps of ASN.1 data. Therefore 7089 applications that print this data could be vulnerable if the data is from 7090 untrusted sources. OpenSSL command line applications could also be 7091 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7092 as command line arguments. 7093 7094 Libssl is not considered directly vulnerable. Additionally certificates etc 7095 received via remote connections via libssl are also unlikely to be able to 7096 trigger these issues because of message size limits enforced within libssl. 7097 7098 This issue was reported to OpenSSL Guido Vranken. 7099 ([CVE-2016-0799]) 7100 7101 *Matt Caswell* 7102 7103 * Side channel attack on modular exponentiation 7104 7105 A side-channel attack was found which makes use of cache-bank conflicts on 7106 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7107 of RSA keys. The ability to exploit this issue is limited as it relies on 7108 an attacker who has control of code in a thread running on the same 7109 hyper-threaded core as the victim thread which is performing decryptions. 7110 7111 This issue was reported to OpenSSL by Yuval Yarom, The University of 7112 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7113 Nadia Heninger, University of Pennsylvania with more information at 7114 <http://cachebleed.info>. 7115 ([CVE-2016-0702]) 7116 7117 *Andy Polyakov* 7118 7119 * Change the req command to generate a 2048-bit RSA/DSA key by default, 7120 if no keysize is specified with default_bits. This fixes an 7121 omission in an earlier change that changed all RSA/DSA key generation 7122 commands to use 2048 bits by default. 7123 7124 *Emilia Käsper* 7125 7126### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 7127 7128 * Protection for DH small subgroup attacks 7129 7130 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 7131 switched on by default and cannot be disabled. This could have some 7132 performance impact. 7133 7134 *Matt Caswell* 7135 7136 * SSLv2 doesn't block disabled ciphers 7137 7138 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7139 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7140 been disabled, provided that the SSLv2 protocol was not also disabled via 7141 SSL_OP_NO_SSLv2. 7142 7143 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7144 and Sebastian Schinzel. 7145 ([CVE-2015-3197]) 7146 7147 *Viktor Dukhovni* 7148 7149 * Reject DH handshakes with parameters shorter than 1024 bits. 7150 7151 *Kurt Roeckx* 7152 7153### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 7154 7155 * Certificate verify crash with missing PSS parameter 7156 7157 The signature verification routines will crash with a NULL pointer 7158 dereference if presented with an ASN.1 signature using the RSA PSS 7159 algorithm and absent mask generation function parameter. Since these 7160 routines are used to verify certificate signature algorithms this can be 7161 used to crash any certificate verification operation and exploited in a 7162 DoS attack. Any application which performs certificate verification is 7163 vulnerable including OpenSSL clients and servers which enable client 7164 authentication. 7165 7166 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7167 ([CVE-2015-3194]) 7168 7169 *Stephen Henson* 7170 7171 * X509_ATTRIBUTE memory leak 7172 7173 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7174 memory. This structure is used by the PKCS#7 and CMS routines so any 7175 application which reads PKCS#7 or CMS data from untrusted sources is 7176 affected. SSL/TLS is not affected. 7177 7178 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7179 libFuzzer. 7180 ([CVE-2015-3195]) 7181 7182 *Stephen Henson* 7183 7184 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7185 This changes the decoding behaviour for some invalid messages, 7186 though the change is mostly in the more lenient direction, and 7187 legacy behaviour is preserved as much as possible. 7188 7189 *Emilia Käsper* 7190 7191 * In DSA_generate_parameters_ex, if the provided seed is too short, 7192 use a random seed, as already documented. 7193 7194 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7195 7196### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7197 7198 * Alternate chains certificate forgery 7199 7200 During certificate verfification, OpenSSL will attempt to find an 7201 alternative certificate chain if the first attempt to build such a chain 7202 fails. An error in the implementation of this logic can mean that an 7203 attacker could cause certain checks on untrusted certificates to be 7204 bypassed, such as the CA flag, enabling them to use a valid leaf 7205 certificate to act as a CA and "issue" an invalid certificate. 7206 7207 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7208 (Google/BoringSSL). 7209 ([CVE-2015-1793]) 7210 7211 *Matt Caswell* 7212 7213 * Race condition handling PSK identify hint 7214 7215 If PSK identity hints are received by a multi-threaded client then 7216 the values are wrongly updated in the parent SSL_CTX structure. This can 7217 result in a race condition potentially leading to a double free of the 7218 identify hint data. 7219 ([CVE-2015-3196]) 7220 7221 *Stephen Henson* 7222 7223### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7224 7225 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7226 incompatibility in the handling of HMAC. The previous ABI has now been 7227 restored. 7228 7229### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7230 7231 * Malformed ECParameters causes infinite loop 7232 7233 When processing an ECParameters structure OpenSSL enters an infinite loop 7234 if the curve specified is over a specially malformed binary polynomial 7235 field. 7236 7237 This can be used to perform denial of service against any 7238 system which processes public keys, certificate requests or 7239 certificates. This includes TLS clients and TLS servers with 7240 client authentication enabled. 7241 7242 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7243 ([CVE-2015-1788]) 7244 7245 *Andy Polyakov* 7246 7247 * Exploitable out-of-bounds read in X509_cmp_time 7248 7249 X509_cmp_time does not properly check the length of the ASN1_TIME 7250 string and can read a few bytes out of bounds. In addition, 7251 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7252 time string. 7253 7254 An attacker can use this to craft malformed certificates and CRLs of 7255 various sizes and potentially cause a segmentation fault, resulting in 7256 a DoS on applications that verify certificates or CRLs. TLS clients 7257 that verify CRLs are affected. TLS clients and servers with client 7258 authentication enabled may be affected if they use custom verification 7259 callbacks. 7260 7261 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7262 independently by Hanno Böck. 7263 ([CVE-2015-1789]) 7264 7265 *Emilia Käsper* 7266 7267 * PKCS7 crash with missing EnvelopedContent 7268 7269 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7270 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7271 with missing content and trigger a NULL pointer dereference on parsing. 7272 7273 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7274 structures from untrusted sources are affected. OpenSSL clients and 7275 servers are not affected. 7276 7277 This issue was reported to OpenSSL by Michal Zalewski (Google). 7278 ([CVE-2015-1790]) 7279 7280 *Emilia Käsper* 7281 7282 * CMS verify infinite loop with unknown hash function 7283 7284 When verifying a signedData message the CMS code can enter an infinite loop 7285 if presented with an unknown hash function OID. This can be used to perform 7286 denial of service against any system which verifies signedData messages using 7287 the CMS code. 7288 This issue was reported to OpenSSL by Johannes Bauer. 7289 ([CVE-2015-1792]) 7290 7291 *Stephen Henson* 7292 7293 * Race condition handling NewSessionTicket 7294 7295 If a NewSessionTicket is received by a multi-threaded client when attempting to 7296 reuse a previous ticket then a race condition can occur potentially leading to 7297 a double free of the ticket data. 7298 ([CVE-2015-1791]) 7299 7300 *Matt Caswell* 7301 7302 * Reject DH handshakes with parameters shorter than 768 bits. 7303 7304 *Kurt Roeckx and Emilia Kasper* 7305 7306 * dhparam: generate 2048-bit parameters by default. 7307 7308 *Kurt Roeckx and Emilia Kasper* 7309 7310### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7311 7312 * Segmentation fault in ASN1_TYPE_cmp fix 7313 7314 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7315 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7316 certificate signature algorithm consistency this can be used to crash any 7317 certificate verification operation and exploited in a DoS attack. Any 7318 application which performs certificate verification is vulnerable including 7319 OpenSSL clients and servers which enable client authentication. 7320 ([CVE-2015-0286]) 7321 7322 *Stephen Henson* 7323 7324 * ASN.1 structure reuse memory corruption fix 7325 7326 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7327 memory corruption via an invalid write. Such reuse is and has been 7328 strongly discouraged and is believed to be rare. 7329 7330 Applications that parse structures containing CHOICE or ANY DEFINED BY 7331 components may be affected. Certificate parsing (d2i_X509 and related 7332 functions) are however not affected. OpenSSL clients and servers are 7333 not affected. 7334 ([CVE-2015-0287]) 7335 7336 *Stephen Henson* 7337 7338 * PKCS7 NULL pointer dereferences fix 7339 7340 The PKCS#7 parsing code does not handle missing outer ContentInfo 7341 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7342 missing content and trigger a NULL pointer dereference on parsing. 7343 7344 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7345 otherwise parse PKCS#7 structures from untrusted sources are 7346 affected. OpenSSL clients and servers are not affected. 7347 7348 This issue was reported to OpenSSL by Michal Zalewski (Google). 7349 ([CVE-2015-0289]) 7350 7351 *Emilia Käsper* 7352 7353 * DoS via reachable assert in SSLv2 servers fix 7354 7355 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7356 servers that both support SSLv2 and enable export cipher suites by sending 7357 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7358 7359 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7360 (OpenSSL development team). 7361 ([CVE-2015-0293]) 7362 7363 *Emilia Käsper* 7364 7365 * Use After Free following d2i_ECPrivatekey error fix 7366 7367 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7368 could cause a use after free condition. This, in turn, could cause a double 7369 free in several private key parsing functions (such as d2i_PrivateKey 7370 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7371 for applications that receive EC private keys from untrusted 7372 sources. This scenario is considered rare. 7373 7374 This issue was discovered by the BoringSSL project and fixed in their 7375 commit 517073cd4b. 7376 ([CVE-2015-0209]) 7377 7378 *Matt Caswell* 7379 7380 * X509_to_X509_REQ NULL pointer deref fix 7381 7382 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7383 the certificate key is invalid. This function is rarely used in practice. 7384 7385 This issue was discovered by Brian Carpenter. 7386 ([CVE-2015-0288]) 7387 7388 *Stephen Henson* 7389 7390 * Removed the export ciphers from the DEFAULT ciphers 7391 7392 *Kurt Roeckx* 7393 7394### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7395 7396 * Build fixes for the Windows and OpenVMS platforms 7397 7398 *Matt Caswell and Richard Levitte* 7399 7400### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7401 7402 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7403 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7404 dereference. This could lead to a Denial Of Service attack. Thanks to 7405 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7406 ([CVE-2014-3571]) 7407 7408 *Steve Henson* 7409 7410 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7411 dtls1_buffer_record function under certain conditions. In particular this 7412 could occur if an attacker sent repeated DTLS records with the same 7413 sequence number but for the next epoch. The memory leak could be exploited 7414 by an attacker in a Denial of Service attack through memory exhaustion. 7415 Thanks to Chris Mueller for reporting this issue. 7416 ([CVE-2015-0206]) 7417 7418 *Matt Caswell* 7419 7420 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7421 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7422 method would be set to NULL which could later result in a NULL pointer 7423 dereference. Thanks to Frank Schmirler for reporting this issue. 7424 ([CVE-2014-3569]) 7425 7426 *Kurt Roeckx* 7427 7428 * Abort handshake if server key exchange message is omitted for ephemeral 7429 ECDH ciphersuites. 7430 7431 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7432 reporting this issue. 7433 ([CVE-2014-3572]) 7434 7435 *Steve Henson* 7436 7437 * Remove non-export ephemeral RSA code on client and server. This code 7438 violated the TLS standard by allowing the use of temporary RSA keys in 7439 non-export ciphersuites and could be used by a server to effectively 7440 downgrade the RSA key length used to a value smaller than the server 7441 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7442 INRIA or reporting this issue. 7443 ([CVE-2015-0204]) 7444 7445 *Steve Henson* 7446 7447 * Fixed issue where DH client certificates are accepted without verification. 7448 An OpenSSL server will accept a DH certificate for client authentication 7449 without the certificate verify message. This effectively allows a client to 7450 authenticate without the use of a private key. This only affects servers 7451 which trust a client certificate authority which issues certificates 7452 containing DH keys: these are extremely rare and hardly ever encountered. 7453 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7454 this issue. 7455 ([CVE-2015-0205]) 7456 7457 *Steve Henson* 7458 7459 * Ensure that the session ID context of an SSL is updated when its 7460 SSL_CTX is updated via SSL_set_SSL_CTX. 7461 7462 The session ID context is typically set from the parent SSL_CTX, 7463 and can vary with the CTX. 7464 7465 *Adam Langley* 7466 7467 * Fix various certificate fingerprint issues. 7468 7469 By using non-DER or invalid encodings outside the signed portion of a 7470 certificate the fingerprint can be changed without breaking the signature. 7471 Although no details of the signed portion of the certificate can be changed 7472 this can cause problems with some applications: e.g. those using the 7473 certificate fingerprint for blacklists. 7474 7475 1. Reject signatures with non zero unused bits. 7476 7477 If the BIT STRING containing the signature has non zero unused bits reject 7478 the signature. All current signature algorithms require zero unused bits. 7479 7480 2. Check certificate algorithm consistency. 7481 7482 Check the AlgorithmIdentifier inside TBS matches the one in the 7483 certificate signature. NB: this will result in signature failure 7484 errors for some broken certificates. 7485 7486 Thanks to Konrad Kraszewski from Google for reporting this issue. 7487 7488 3. Check DSA/ECDSA signatures use DER. 7489 7490 Re-encode DSA/ECDSA signatures and compare with the original received 7491 signature. Return an error if there is a mismatch. 7492 7493 This will reject various cases including garbage after signature 7494 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7495 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7496 (negative or with leading zeroes). 7497 7498 Further analysis was conducted and fixes were developed by Stephen Henson 7499 of the OpenSSL core team. 7500 7501 ([CVE-2014-8275]) 7502 7503 *Steve Henson* 7504 7505 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7506 results on some platforms, including x86_64. This bug occurs at random 7507 with a very low probability, and is not known to be exploitable in any 7508 way, though its exact impact is difficult to determine. Thanks to Pieter 7509 Wuille (Blockstream) who reported this issue and also suggested an initial 7510 fix. Further analysis was conducted by the OpenSSL development team and 7511 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7512 the OpenSSL core team. 7513 ([CVE-2014-3570]) 7514 7515 *Andy Polyakov* 7516 7517 * Do not resume sessions on the server if the negotiated protocol 7518 version does not match the session's version. Resuming with a different 7519 version, while not strictly forbidden by the RFC, is of questionable 7520 sanity and breaks all known clients. 7521 7522 *David Benjamin, Emilia Käsper* 7523 7524 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7525 early CCS messages during renegotiation. (Note that because 7526 renegotiation is encrypted, this early CCS was not exploitable.) 7527 7528 *Emilia Käsper* 7529 7530 * Tighten client-side session ticket handling during renegotiation: 7531 ensure that the client only accepts a session ticket if the server sends 7532 the extension anew in the ServerHello. Previously, a TLS client would 7533 reuse the old extension state and thus accept a session ticket if one was 7534 announced in the initial ServerHello. 7535 7536 Similarly, ensure that the client requires a session ticket if one 7537 was advertised in the ServerHello. Previously, a TLS client would 7538 ignore a missing NewSessionTicket message. 7539 7540 *Emilia Käsper* 7541 7542### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7543 7544 * SRTP Memory Leak. 7545 7546 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7547 sends a carefully crafted handshake message, to cause OpenSSL to fail 7548 to free up to 64k of memory causing a memory leak. This could be 7549 exploited in a Denial Of Service attack. This issue affects OpenSSL 7550 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7551 whether SRTP is used or configured. Implementations of OpenSSL that 7552 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7553 7554 The fix was developed by the OpenSSL team. 7555 ([CVE-2014-3513]) 7556 7557 *OpenSSL team* 7558 7559 * Session Ticket Memory Leak. 7560 7561 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7562 integrity of that ticket is first verified. In the event of a session 7563 ticket integrity check failing, OpenSSL will fail to free memory 7564 causing a memory leak. By sending a large number of invalid session 7565 tickets an attacker could exploit this issue in a Denial Of Service 7566 attack. 7567 ([CVE-2014-3567]) 7568 7569 *Steve Henson* 7570 7571 * Build option no-ssl3 is incomplete. 7572 7573 When OpenSSL is configured with "no-ssl3" as a build option, servers 7574 could accept and complete a SSL 3.0 handshake, and clients could be 7575 configured to send them. 7576 ([CVE-2014-3568]) 7577 7578 *Akamai and the OpenSSL team* 7579 7580 * Add support for TLS_FALLBACK_SCSV. 7581 Client applications doing fallback retries should call 7582 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7583 ([CVE-2014-3566]) 7584 7585 *Adam Langley, Bodo Moeller* 7586 7587 * Add additional DigestInfo checks. 7588 7589 Re-encode DigestInto in DER and check against the original when 7590 verifying RSA signature: this will reject any improperly encoded 7591 DigestInfo structures. 7592 7593 Note: this is a precautionary measure and no attacks are currently known. 7594 7595 *Steve Henson* 7596 7597### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7598 7599 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7600 SRP code can be overrun an internal buffer. Add sanity check that 7601 g, A, B < N to SRP code. 7602 7603 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7604 Group for discovering this issue. 7605 ([CVE-2014-3512]) 7606 7607 *Steve Henson* 7608 7609 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7610 TLS 1.0 instead of higher protocol versions when the ClientHello message 7611 is badly fragmented. This allows a man-in-the-middle attacker to force a 7612 downgrade to TLS 1.0 even if both the server and the client support a 7613 higher protocol version, by modifying the client's TLS records. 7614 7615 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7616 researching this issue. 7617 ([CVE-2014-3511]) 7618 7619 *David Benjamin* 7620 7621 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7622 to a denial of service attack. A malicious server can crash the client 7623 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7624 ciphersuite and sending carefully crafted handshake messages. 7625 7626 Thanks to Felix Gröbert (Google) for discovering and researching this 7627 issue. 7628 ([CVE-2014-3510]) 7629 7630 *Emilia Käsper* 7631 7632 * By sending carefully crafted DTLS packets an attacker could cause openssl 7633 to leak memory. This can be exploited through a Denial of Service attack. 7634 Thanks to Adam Langley for discovering and researching this issue. 7635 ([CVE-2014-3507]) 7636 7637 *Adam Langley* 7638 7639 * An attacker can force openssl to consume large amounts of memory whilst 7640 processing DTLS handshake messages. This can be exploited through a 7641 Denial of Service attack. 7642 Thanks to Adam Langley for discovering and researching this issue. 7643 ([CVE-2014-3506]) 7644 7645 *Adam Langley* 7646 7647 * An attacker can force an error condition which causes openssl to crash 7648 whilst processing DTLS packets due to memory being freed twice. This 7649 can be exploited through a Denial of Service attack. 7650 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7651 this issue. 7652 ([CVE-2014-3505]) 7653 7654 *Adam Langley* 7655 7656 * If a multithreaded client connects to a malicious server using a resumed 7657 session and the server sends an ec point format extension it could write 7658 up to 255 bytes to freed memory. 7659 7660 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7661 issue. 7662 ([CVE-2014-3509]) 7663 7664 *Gabor Tyukasz* 7665 7666 * A malicious server can crash an OpenSSL client with a null pointer 7667 dereference (read) by specifying an SRP ciphersuite even though it was not 7668 properly negotiated with the client. This can be exploited through a 7669 Denial of Service attack. 7670 7671 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7672 discovering and researching this issue. 7673 ([CVE-2014-5139]) 7674 7675 *Steve Henson* 7676 7677 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7678 X509_name_oneline, X509_name_print_ex et al. to leak some information 7679 from the stack. Applications may be affected if they echo pretty printing 7680 output to the attacker. 7681 7682 Thanks to Ivan Fratric (Google) for discovering this issue. 7683 ([CVE-2014-3508]) 7684 7685 *Emilia Käsper, and Steve Henson* 7686 7687 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7688 for corner cases. (Certain input points at infinity could lead to 7689 bogus results, with non-infinity inputs mapped to infinity too.) 7690 7691 *Bodo Moeller* 7692 7693### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7694 7695 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7696 handshake can force the use of weak keying material in OpenSSL 7697 SSL/TLS clients and servers. 7698 7699 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7700 researching this issue. ([CVE-2014-0224]) 7701 7702 *KIKUCHI Masashi, Steve Henson* 7703 7704 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7705 OpenSSL DTLS client the code can be made to recurse eventually crashing 7706 in a DoS attack. 7707 7708 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7709 ([CVE-2014-0221]) 7710 7711 *Imre Rad, Steve Henson* 7712 7713 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7714 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7715 client or server. This is potentially exploitable to run arbitrary 7716 code on a vulnerable client or server. 7717 7718 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7719 7720 *Jüri Aedla, Steve Henson* 7721 7722 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7723 are subject to a denial of service attack. 7724 7725 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7726 this issue. ([CVE-2014-3470]) 7727 7728 *Felix Gröbert, Ivan Fratric, Steve Henson* 7729 7730 * Harmonize version and its documentation. -f flag is used to display 7731 compilation flags. 7732 7733 *mancha <mancha1@zoho.com>* 7734 7735 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7736 in i2d_ECPrivateKey. 7737 7738 *mancha <mancha1@zoho.com>* 7739 7740 * Fix some double frees. These are not thought to be exploitable. 7741 7742 *mancha <mancha1@zoho.com>* 7743 7744### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7745 7746 * A missing bounds check in the handling of the TLS heartbeat extension 7747 can be used to reveal up to 64k of memory to a connected client or 7748 server. 7749 7750 Thanks for Neel Mehta of Google Security for discovering this bug and to 7751 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7752 preparing the fix ([CVE-2014-0160]) 7753 7754 *Adam Langley, Bodo Moeller* 7755 7756 * Fix for the attack described in the paper "Recovering OpenSSL 7757 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7758 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7759 <http://eprint.iacr.org/2014/140> 7760 7761 Thanks to Yuval Yarom and Naomi Benger for discovering this 7762 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7763 7764 *Yuval Yarom and Naomi Benger* 7765 7766 * TLS pad extension: draft-agl-tls-padding-03 7767 7768 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7769 TLS client Hello record length value would otherwise be > 255 and 7770 less that 512 pad with a dummy extension containing zeroes so it 7771 is at least 512 bytes long. 7772 7773 *Adam Langley, Steve Henson* 7774 7775### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7776 7777 * Fix for TLS record tampering bug. A carefully crafted invalid 7778 handshake could crash OpenSSL with a NULL pointer exception. 7779 Thanks to Anton Johansson for reporting this issues. 7780 ([CVE-2013-4353]) 7781 7782 * Keep original DTLS digest and encryption contexts in retransmission 7783 structures so we can use the previous session parameters if they need 7784 to be resent. ([CVE-2013-6450]) 7785 7786 *Steve Henson* 7787 7788 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 7789 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 7790 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 7791 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 7792 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 7793 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 7794 7795 *Rob Stradling, Adam Langley* 7796 7797### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 7798 7799 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 7800 supporting platforms or when small records were transferred. 7801 7802 *Andy Polyakov, Steve Henson* 7803 7804### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 7805 7806 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 7807 7808 This addresses the flaw in CBC record processing discovered by 7809 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 7810 at: <http://www.isg.rhul.ac.uk/tls/> 7811 7812 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 7813 Security Group at Royal Holloway, University of London 7814 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 7815 Emilia Käsper for the initial patch. 7816 ([CVE-2013-0169]) 7817 7818 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 7819 7820 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 7821 ciphersuites which can be exploited in a denial of service attack. 7822 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 7823 and detecting this bug and to Wolfgang Ettlinger 7824 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 7825 ([CVE-2012-2686]) 7826 7827 *Adam Langley* 7828 7829 * Return an error when checking OCSP signatures when key is NULL. 7830 This fixes a DoS attack. ([CVE-2013-0166]) 7831 7832 *Steve Henson* 7833 7834 * Make openssl verify return errors. 7835 7836 *Chris Palmer <palmer@google.com> and Ben Laurie* 7837 7838 * Call OCSP Stapling callback after ciphersuite has been chosen, so 7839 the right response is stapled. Also change SSL_get_certificate() 7840 so it returns the certificate actually sent. 7841 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 7842 7843 *Rob Stradling <rob.stradling@comodo.com>* 7844 7845 * Fix possible deadlock when decoding public keys. 7846 7847 *Steve Henson* 7848 7849 * Don't use TLS 1.0 record version number in initial client hello 7850 if renegotiating. 7851 7852 *Steve Henson* 7853 7854### Changes between 1.0.1b and 1.0.1c [10 May 2012] 7855 7856 * Sanity check record length before skipping explicit IV in TLS 7857 1.2, 1.1 and DTLS to fix DoS attack. 7858 7859 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 7860 fuzzing as a service testing platform. 7861 ([CVE-2012-2333]) 7862 7863 *Steve Henson* 7864 7865 * Initialise tkeylen properly when encrypting CMS messages. 7866 Thanks to Solar Designer of Openwall for reporting this issue. 7867 7868 *Steve Henson* 7869 7870 * In FIPS mode don't try to use composite ciphers as they are not 7871 approved. 7872 7873 *Steve Henson* 7874 7875### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 7876 7877 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 7878 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 7879 mean any application compiled against OpenSSL 1.0.0 headers setting 7880 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 7881 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 7882 0x10000000L Any application which was previously compiled against 7883 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 7884 will need to be recompiled as a result. Letting be results in 7885 inability to disable specifically TLS 1.1 and in client context, 7886 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 7887 7888 *Steve Henson* 7889 7890 * In order to ensure interoperability SSL_OP_NO_protocolX does not 7891 disable just protocol X, but all protocols above X *if* there are 7892 protocols *below* X still enabled. In more practical terms it means 7893 that if application wants to disable TLS1.0 in favor of TLS1.1 and 7894 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 7895 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 7896 client side. 7897 7898 *Andy Polyakov* 7899 7900### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 7901 7902 * Check for potentially exploitable overflows in asn1_d2i_read_bio 7903 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 7904 in CRYPTO_realloc_clean. 7905 7906 Thanks to Tavis Ormandy, Google Security Team, for discovering this 7907 issue and to Adam Langley <agl@chromium.org> for fixing it. 7908 ([CVE-2012-2110]) 7909 7910 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 7911 7912 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 7913 7914 *Adam Langley* 7915 7916 * Workarounds for some broken servers that "hang" if a client hello 7917 record length exceeds 255 bytes. 7918 7919 1. Do not use record version number > TLS 1.0 in initial client 7920 hello: some (but not all) hanging servers will now work. 7921 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 7922 the number of ciphers sent in the client hello. This should be 7923 set to an even number, such as 50, for example by passing: 7924 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 7925 Most broken servers should now work. 7926 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 7927 TLS 1.2 client support entirely. 7928 7929 *Steve Henson* 7930 7931 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 7932 7933 *Andy Polyakov* 7934 7935### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 7936 7937 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 7938 STRING form instead of a DigestInfo. 7939 7940 *Steve Henson* 7941 7942 * The format used for MDC2 RSA signatures is inconsistent between EVP 7943 and the RSA_sign/RSA_verify functions. This was made more apparent when 7944 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 7945 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 7946 the correct format in RSA_verify so both forms transparently work. 7947 7948 *Steve Henson* 7949 7950 * Some servers which support TLS 1.0 can choke if we initially indicate 7951 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 7952 encrypted premaster secret. As a workaround use the maximum permitted 7953 client version in client hello, this should keep such servers happy 7954 and still work with previous versions of OpenSSL. 7955 7956 *Steve Henson* 7957 7958 * Add support for TLS/DTLS heartbeats. 7959 7960 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7961 7962 * Add support for SCTP. 7963 7964 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7965 7966 * Improved PRNG seeding for VOS. 7967 7968 *Paul Green <Paul.Green@stratus.com>* 7969 7970 * Extensive assembler packs updates, most notably: 7971 7972 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 7973 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 7974 - x86_64: bit-sliced AES implementation; 7975 - ARM: NEON support, contemporary platforms optimizations; 7976 - s390x: z196 support; 7977 - `*`: GHASH and GF(2^m) multiplication implementations; 7978 7979 *Andy Polyakov* 7980 7981 * Make TLS-SRP code conformant with RFC 5054 API cleanup 7982 (removal of unnecessary code) 7983 7984 *Peter Sylvester <peter.sylvester@edelweb.fr>* 7985 7986 * Add TLS key material exporter from RFC 5705. 7987 7988 *Eric Rescorla* 7989 7990 * Add DTLS-SRTP negotiation from RFC 5764. 7991 7992 *Eric Rescorla* 7993 7994 * Add Next Protocol Negotiation, 7995 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 7996 disabled with a no-npn flag to config or Configure. Code donated 7997 by Google. 7998 7999 *Adam Langley <agl@google.com> and Ben Laurie* 8000 8001 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 8002 NIST-P256, NIST-P521, with constant-time single point multiplication on 8003 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 8004 required to use this (present in gcc 4.4 and later, for 64-bit builds). 8005 Code made available under Apache License version 2.0. 8006 8007 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 8008 line to include this in your build of OpenSSL, and run "make depend" (or 8009 "make update"). This enables the following EC_METHODs: 8010 8011 EC_GFp_nistp224_method() 8012 EC_GFp_nistp256_method() 8013 EC_GFp_nistp521_method() 8014 8015 EC_GROUP_new_by_curve_name() will automatically use these (while 8016 EC_GROUP_new_curve_GFp() currently prefers the more flexible 8017 implementations). 8018 8019 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 8020 8021 * Use type ossl_ssize_t instead of ssize_t which isn't available on 8022 all platforms. Move ssize_t definition from e_os.h to the public 8023 header file e_os2.h as it now appears in public header file cms.h 8024 8025 *Steve Henson* 8026 8027 * New -sigopt option to the ca, req and x509 utilities. Additional 8028 signature parameters can be passed using this option and in 8029 particular PSS. 8030 8031 *Steve Henson* 8032 8033 * Add RSA PSS signing function. This will generate and set the 8034 appropriate AlgorithmIdentifiers for PSS based on those in the 8035 corresponding EVP_MD_CTX structure. No application support yet. 8036 8037 *Steve Henson* 8038 8039 * Support for companion algorithm specific ASN1 signing routines. 8040 New function ASN1_item_sign_ctx() signs a pre-initialised 8041 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 8042 the appropriate parameters. 8043 8044 *Steve Henson* 8045 8046 * Add new algorithm specific ASN1 verification initialisation function 8047 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 8048 handling will be the same no matter what EVP_PKEY_METHOD is used. 8049 Add a PSS handler to support verification of PSS signatures: checked 8050 against a number of sample certificates. 8051 8052 *Steve Henson* 8053 8054 * Add signature printing for PSS. Add PSS OIDs. 8055 8056 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 8057 8058 * Add algorithm specific signature printing. An individual ASN1 method 8059 can now print out signatures instead of the standard hex dump. 8060 8061 More complex signatures (e.g. PSS) can print out more meaningful 8062 information. Include DSA version that prints out the signature 8063 parameters r, s. 8064 8065 *Steve Henson* 8066 8067 * Password based recipient info support for CMS library: implementing 8068 RFC3211. 8069 8070 *Steve Henson* 8071 8072 * Split password based encryption into PBES2 and PBKDF2 functions. This 8073 neatly separates the code into cipher and PBE sections and is required 8074 for some algorithms that split PBES2 into separate pieces (such as 8075 password based CMS). 8076 8077 *Steve Henson* 8078 8079 * Session-handling fixes: 8080 - Fix handling of connections that are resuming with a session ID, 8081 but also support Session Tickets. 8082 - Fix a bug that suppressed issuing of a new ticket if the client 8083 presented a ticket with an expired session. 8084 - Try to set the ticket lifetime hint to something reasonable. 8085 - Make tickets shorter by excluding irrelevant information. 8086 - On the client side, don't ignore renewed tickets. 8087 8088 *Adam Langley, Bodo Moeller (Google)* 8089 8090 * Fix PSK session representation. 8091 8092 *Bodo Moeller* 8093 8094 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 8095 8096 This work was sponsored by Intel. 8097 8098 *Andy Polyakov* 8099 8100 * Add GCM support to TLS library. Some custom code is needed to split 8101 the IV between the fixed (from PRF) and explicit (from TLS record) 8102 portions. This adds all GCM ciphersuites supported by RFC5288 and 8103 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 8104 add a special AESGCM string for GCM only. 8105 8106 *Steve Henson* 8107 8108 * Expand range of ctrls for AES GCM. Permit setting invocation 8109 field on decrypt and retrieval of invocation field only on encrypt. 8110 8111 *Steve Henson* 8112 8113 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 8114 As required by RFC5289 these ciphersuites cannot be used if for 8115 versions of TLS earlier than 1.2. 8116 8117 *Steve Henson* 8118 8119 * For FIPS capable OpenSSL interpret a NULL default public key method 8120 as unset and return the appropriate default but do *not* set the default. 8121 This means we can return the appropriate method in applications that 8122 switch between FIPS and non-FIPS modes. 8123 8124 *Steve Henson* 8125 8126 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 8127 ENGINE is used then we cannot handle that in the FIPS module so we 8128 keep original code iff non-FIPS operations are allowed. 8129 8130 *Steve Henson* 8131 8132 * Add -attime option to openssl utilities. 8133 8134 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 8135 8136 * Redirect DSA and DH operations to FIPS module in FIPS mode. 8137 8138 *Steve Henson* 8139 8140 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 8141 FIPS EC methods unconditionally for now. 8142 8143 *Steve Henson* 8144 8145 * New build option no-ec2m to disable characteristic 2 code. 8146 8147 *Steve Henson* 8148 8149 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 8150 all cases can be covered as some introduce binary incompatibilities. 8151 8152 *Steve Henson* 8153 8154 * Redirect RSA operations to FIPS module including keygen, 8155 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 8156 8157 *Steve Henson* 8158 8159 * Add similar low-level API blocking to ciphers. 8160 8161 *Steve Henson* 8162 8163 * low-level digest APIs are not approved in FIPS mode: any attempt 8164 to use these will cause a fatal error. Applications that *really* want 8165 to use them can use the `private_*` version instead. 8166 8167 *Steve Henson* 8168 8169 * Redirect cipher operations to FIPS module for FIPS builds. 8170 8171 *Steve Henson* 8172 8173 * Redirect digest operations to FIPS module for FIPS builds. 8174 8175 *Steve Henson* 8176 8177 * Update build system to add "fips" flag which will link in fipscanister.o 8178 for static and shared library builds embedding a signature if needed. 8179 8180 *Steve Henson* 8181 8182 * Output TLS supported curves in preference order instead of numerical 8183 order. This is currently hardcoded for the highest order curves first. 8184 This should be configurable so applications can judge speed vs strength. 8185 8186 *Steve Henson* 8187 8188 * Add TLS v1.2 server support for client authentication. 8189 8190 *Steve Henson* 8191 8192 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8193 and enable MD5. 8194 8195 *Steve Henson* 8196 8197 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8198 FIPS modules versions. 8199 8200 *Steve Henson* 8201 8202 * Add TLS v1.2 client side support for client authentication. Keep cache 8203 of handshake records longer as we don't know the hash algorithm to use 8204 until after the certificate request message is received. 8205 8206 *Steve Henson* 8207 8208 * Initial TLS v1.2 client support. Add a default signature algorithms 8209 extension including all the algorithms we support. Parse new signature 8210 format in client key exchange. Relax some ECC signing restrictions for 8211 TLS v1.2 as indicated in RFC5246. 8212 8213 *Steve Henson* 8214 8215 * Add server support for TLS v1.2 signature algorithms extension. Switch 8216 to new signature format when needed using client digest preference. 8217 All server ciphersuites should now work correctly in TLS v1.2. No client 8218 support yet and no support for client certificates. 8219 8220 *Steve Henson* 8221 8222 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8223 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8224 ciphersuites. At present only RSA key exchange ciphersuites work with 8225 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8226 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8227 and version checking. 8228 8229 *Steve Henson* 8230 8231 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8232 with this defined it will not be affected by any changes to ssl internal 8233 structures. Add several utility functions to allow openssl application 8234 to work with OPENSSL_NO_SSL_INTERN defined. 8235 8236 *Steve Henson* 8237 8238 * A long standing patch to add support for SRP from EdelWeb (Peter 8239 Sylvester and Christophe Renou) was integrated. 8240 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8241 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8242 Ben Laurie* 8243 8244 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8245 8246 *Steve Henson* 8247 8248 * Permit abbreviated handshakes when renegotiating using the function 8249 SSL_renegotiate_abbreviated(). 8250 8251 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8252 8253 * Add call to ENGINE_register_all_complete() to 8254 ENGINE_load_builtin_engines(), so some implementations get used 8255 automatically instead of needing explicit application support. 8256 8257 *Steve Henson* 8258 8259 * Add support for TLS key exporter as described in RFC5705. 8260 8261 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8262 8263 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8264 a few changes are required: 8265 8266 Add SSL_OP_NO_TLSv1_1 flag. 8267 Add TLSv1_1 methods. 8268 Update version checking logic to handle version 1.1. 8269 Add explicit IV handling (ported from DTLS code). 8270 Add command line options to s_client/s_server. 8271 8272 *Steve Henson* 8273 8274OpenSSL 1.0.0 8275------------- 8276 8277### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8278 8279 * X509_ATTRIBUTE memory leak 8280 8281 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8282 memory. This structure is used by the PKCS#7 and CMS routines so any 8283 application which reads PKCS#7 or CMS data from untrusted sources is 8284 affected. SSL/TLS is not affected. 8285 8286 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8287 libFuzzer. 8288 ([CVE-2015-3195]) 8289 8290 *Stephen Henson* 8291 8292 * Race condition handling PSK identify hint 8293 8294 If PSK identity hints are received by a multi-threaded client then 8295 the values are wrongly updated in the parent SSL_CTX structure. This can 8296 result in a race condition potentially leading to a double free of the 8297 identify hint data. 8298 ([CVE-2015-3196]) 8299 8300 *Stephen Henson* 8301 8302### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8303 8304 * Malformed ECParameters causes infinite loop 8305 8306 When processing an ECParameters structure OpenSSL enters an infinite loop 8307 if the curve specified is over a specially malformed binary polynomial 8308 field. 8309 8310 This can be used to perform denial of service against any 8311 system which processes public keys, certificate requests or 8312 certificates. This includes TLS clients and TLS servers with 8313 client authentication enabled. 8314 8315 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8316 ([CVE-2015-1788]) 8317 8318 *Andy Polyakov* 8319 8320 * Exploitable out-of-bounds read in X509_cmp_time 8321 8322 X509_cmp_time does not properly check the length of the ASN1_TIME 8323 string and can read a few bytes out of bounds. In addition, 8324 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8325 time string. 8326 8327 An attacker can use this to craft malformed certificates and CRLs of 8328 various sizes and potentially cause a segmentation fault, resulting in 8329 a DoS on applications that verify certificates or CRLs. TLS clients 8330 that verify CRLs are affected. TLS clients and servers with client 8331 authentication enabled may be affected if they use custom verification 8332 callbacks. 8333 8334 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8335 independently by Hanno Böck. 8336 ([CVE-2015-1789]) 8337 8338 *Emilia Käsper* 8339 8340 * PKCS7 crash with missing EnvelopedContent 8341 8342 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8343 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8344 with missing content and trigger a NULL pointer dereference on parsing. 8345 8346 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8347 structures from untrusted sources are affected. OpenSSL clients and 8348 servers are not affected. 8349 8350 This issue was reported to OpenSSL by Michal Zalewski (Google). 8351 ([CVE-2015-1790]) 8352 8353 *Emilia Käsper* 8354 8355 * CMS verify infinite loop with unknown hash function 8356 8357 When verifying a signedData message the CMS code can enter an infinite loop 8358 if presented with an unknown hash function OID. This can be used to perform 8359 denial of service against any system which verifies signedData messages using 8360 the CMS code. 8361 This issue was reported to OpenSSL by Johannes Bauer. 8362 ([CVE-2015-1792]) 8363 8364 *Stephen Henson* 8365 8366 * Race condition handling NewSessionTicket 8367 8368 If a NewSessionTicket is received by a multi-threaded client when attempting to 8369 reuse a previous ticket then a race condition can occur potentially leading to 8370 a double free of the ticket data. 8371 ([CVE-2015-1791]) 8372 8373 *Matt Caswell* 8374 8375### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8376 8377 * Segmentation fault in ASN1_TYPE_cmp fix 8378 8379 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8380 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8381 certificate signature algorithm consistency this can be used to crash any 8382 certificate verification operation and exploited in a DoS attack. Any 8383 application which performs certificate verification is vulnerable including 8384 OpenSSL clients and servers which enable client authentication. 8385 ([CVE-2015-0286]) 8386 8387 *Stephen Henson* 8388 8389 * ASN.1 structure reuse memory corruption fix 8390 8391 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8392 memory corruption via an invalid write. Such reuse is and has been 8393 strongly discouraged and is believed to be rare. 8394 8395 Applications that parse structures containing CHOICE or ANY DEFINED BY 8396 components may be affected. Certificate parsing (d2i_X509 and related 8397 functions) are however not affected. OpenSSL clients and servers are 8398 not affected. 8399 ([CVE-2015-0287]) 8400 8401 *Stephen Henson* 8402 8403 * PKCS7 NULL pointer dereferences fix 8404 8405 The PKCS#7 parsing code does not handle missing outer ContentInfo 8406 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8407 missing content and trigger a NULL pointer dereference on parsing. 8408 8409 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8410 otherwise parse PKCS#7 structures from untrusted sources are 8411 affected. OpenSSL clients and servers are not affected. 8412 8413 This issue was reported to OpenSSL by Michal Zalewski (Google). 8414 ([CVE-2015-0289]) 8415 8416 *Emilia Käsper* 8417 8418 * DoS via reachable assert in SSLv2 servers fix 8419 8420 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8421 servers that both support SSLv2 and enable export cipher suites by sending 8422 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8423 8424 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8425 (OpenSSL development team). 8426 ([CVE-2015-0293]) 8427 8428 *Emilia Käsper* 8429 8430 * Use After Free following d2i_ECPrivatekey error fix 8431 8432 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8433 could cause a use after free condition. This, in turn, could cause a double 8434 free in several private key parsing functions (such as d2i_PrivateKey 8435 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8436 for applications that receive EC private keys from untrusted 8437 sources. This scenario is considered rare. 8438 8439 This issue was discovered by the BoringSSL project and fixed in their 8440 commit 517073cd4b. 8441 ([CVE-2015-0209]) 8442 8443 *Matt Caswell* 8444 8445 * X509_to_X509_REQ NULL pointer deref fix 8446 8447 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8448 the certificate key is invalid. This function is rarely used in practice. 8449 8450 This issue was discovered by Brian Carpenter. 8451 ([CVE-2015-0288]) 8452 8453 *Stephen Henson* 8454 8455 * Removed the export ciphers from the DEFAULT ciphers 8456 8457 *Kurt Roeckx* 8458 8459### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8460 8461 * Build fixes for the Windows and OpenVMS platforms 8462 8463 *Matt Caswell and Richard Levitte* 8464 8465### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8466 8467 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8468 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8469 dereference. This could lead to a Denial Of Service attack. Thanks to 8470 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8471 ([CVE-2014-3571]) 8472 8473 *Steve Henson* 8474 8475 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8476 dtls1_buffer_record function under certain conditions. In particular this 8477 could occur if an attacker sent repeated DTLS records with the same 8478 sequence number but for the next epoch. The memory leak could be exploited 8479 by an attacker in a Denial of Service attack through memory exhaustion. 8480 Thanks to Chris Mueller for reporting this issue. 8481 ([CVE-2015-0206]) 8482 8483 *Matt Caswell* 8484 8485 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8486 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8487 method would be set to NULL which could later result in a NULL pointer 8488 dereference. Thanks to Frank Schmirler for reporting this issue. 8489 ([CVE-2014-3569]) 8490 8491 *Kurt Roeckx* 8492 8493 * Abort handshake if server key exchange message is omitted for ephemeral 8494 ECDH ciphersuites. 8495 8496 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8497 reporting this issue. 8498 ([CVE-2014-3572]) 8499 8500 *Steve Henson* 8501 8502 * Remove non-export ephemeral RSA code on client and server. This code 8503 violated the TLS standard by allowing the use of temporary RSA keys in 8504 non-export ciphersuites and could be used by a server to effectively 8505 downgrade the RSA key length used to a value smaller than the server 8506 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8507 INRIA or reporting this issue. 8508 ([CVE-2015-0204]) 8509 8510 *Steve Henson* 8511 8512 * Fixed issue where DH client certificates are accepted without verification. 8513 An OpenSSL server will accept a DH certificate for client authentication 8514 without the certificate verify message. This effectively allows a client to 8515 authenticate without the use of a private key. This only affects servers 8516 which trust a client certificate authority which issues certificates 8517 containing DH keys: these are extremely rare and hardly ever encountered. 8518 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8519 this issue. 8520 ([CVE-2015-0205]) 8521 8522 *Steve Henson* 8523 8524 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8525 results on some platforms, including x86_64. This bug occurs at random 8526 with a very low probability, and is not known to be exploitable in any 8527 way, though its exact impact is difficult to determine. Thanks to Pieter 8528 Wuille (Blockstream) who reported this issue and also suggested an initial 8529 fix. Further analysis was conducted by the OpenSSL development team and 8530 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8531 the OpenSSL core team. 8532 ([CVE-2014-3570]) 8533 8534 *Andy Polyakov* 8535 8536 * Fix various certificate fingerprint issues. 8537 8538 By using non-DER or invalid encodings outside the signed portion of a 8539 certificate the fingerprint can be changed without breaking the signature. 8540 Although no details of the signed portion of the certificate can be changed 8541 this can cause problems with some applications: e.g. those using the 8542 certificate fingerprint for blacklists. 8543 8544 1. Reject signatures with non zero unused bits. 8545 8546 If the BIT STRING containing the signature has non zero unused bits reject 8547 the signature. All current signature algorithms require zero unused bits. 8548 8549 2. Check certificate algorithm consistency. 8550 8551 Check the AlgorithmIdentifier inside TBS matches the one in the 8552 certificate signature. NB: this will result in signature failure 8553 errors for some broken certificates. 8554 8555 Thanks to Konrad Kraszewski from Google for reporting this issue. 8556 8557 3. Check DSA/ECDSA signatures use DER. 8558 8559 Reencode DSA/ECDSA signatures and compare with the original received 8560 signature. Return an error if there is a mismatch. 8561 8562 This will reject various cases including garbage after signature 8563 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8564 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8565 (negative or with leading zeroes). 8566 8567 Further analysis was conducted and fixes were developed by Stephen Henson 8568 of the OpenSSL core team. 8569 8570 ([CVE-2014-8275]) 8571 8572 *Steve Henson* 8573 8574### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8575 8576 * Session Ticket Memory Leak. 8577 8578 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8579 integrity of that ticket is first verified. In the event of a session 8580 ticket integrity check failing, OpenSSL will fail to free memory 8581 causing a memory leak. By sending a large number of invalid session 8582 tickets an attacker could exploit this issue in a Denial Of Service 8583 attack. 8584 ([CVE-2014-3567]) 8585 8586 *Steve Henson* 8587 8588 * Build option no-ssl3 is incomplete. 8589 8590 When OpenSSL is configured with "no-ssl3" as a build option, servers 8591 could accept and complete a SSL 3.0 handshake, and clients could be 8592 configured to send them. 8593 ([CVE-2014-3568]) 8594 8595 *Akamai and the OpenSSL team* 8596 8597 * Add support for TLS_FALLBACK_SCSV. 8598 Client applications doing fallback retries should call 8599 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8600 ([CVE-2014-3566]) 8601 8602 *Adam Langley, Bodo Moeller* 8603 8604 * Add additional DigestInfo checks. 8605 8606 Reencode DigestInto in DER and check against the original when 8607 verifying RSA signature: this will reject any improperly encoded 8608 DigestInfo structures. 8609 8610 Note: this is a precautionary measure and no attacks are currently known. 8611 8612 *Steve Henson* 8613 8614### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8615 8616 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8617 to a denial of service attack. A malicious server can crash the client 8618 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8619 ciphersuite and sending carefully crafted handshake messages. 8620 8621 Thanks to Felix Gröbert (Google) for discovering and researching this 8622 issue. 8623 ([CVE-2014-3510]) 8624 8625 *Emilia Käsper* 8626 8627 * By sending carefully crafted DTLS packets an attacker could cause openssl 8628 to leak memory. This can be exploited through a Denial of Service attack. 8629 Thanks to Adam Langley for discovering and researching this issue. 8630 ([CVE-2014-3507]) 8631 8632 *Adam Langley* 8633 8634 * An attacker can force openssl to consume large amounts of memory whilst 8635 processing DTLS handshake messages. This can be exploited through a 8636 Denial of Service attack. 8637 Thanks to Adam Langley for discovering and researching this issue. 8638 ([CVE-2014-3506]) 8639 8640 *Adam Langley* 8641 8642 * An attacker can force an error condition which causes openssl to crash 8643 whilst processing DTLS packets due to memory being freed twice. This 8644 can be exploited through a Denial of Service attack. 8645 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8646 this issue. 8647 ([CVE-2014-3505]) 8648 8649 *Adam Langley* 8650 8651 * If a multithreaded client connects to a malicious server using a resumed 8652 session and the server sends an ec point format extension it could write 8653 up to 255 bytes to freed memory. 8654 8655 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8656 issue. 8657 ([CVE-2014-3509]) 8658 8659 *Gabor Tyukasz* 8660 8661 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8662 X509_name_oneline, X509_name_print_ex et al. to leak some information 8663 from the stack. Applications may be affected if they echo pretty printing 8664 output to the attacker. 8665 8666 Thanks to Ivan Fratric (Google) for discovering this issue. 8667 ([CVE-2014-3508]) 8668 8669 *Emilia Käsper, and Steve Henson* 8670 8671 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8672 for corner cases. (Certain input points at infinity could lead to 8673 bogus results, with non-infinity inputs mapped to infinity too.) 8674 8675 *Bodo Moeller* 8676 8677### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8678 8679 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8680 handshake can force the use of weak keying material in OpenSSL 8681 SSL/TLS clients and servers. 8682 8683 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8684 researching this issue. ([CVE-2014-0224]) 8685 8686 *KIKUCHI Masashi, Steve Henson* 8687 8688 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8689 OpenSSL DTLS client the code can be made to recurse eventually crashing 8690 in a DoS attack. 8691 8692 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8693 ([CVE-2014-0221]) 8694 8695 *Imre Rad, Steve Henson* 8696 8697 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8698 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8699 client or server. This is potentially exploitable to run arbitrary 8700 code on a vulnerable client or server. 8701 8702 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8703 8704 *Jüri Aedla, Steve Henson* 8705 8706 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8707 are subject to a denial of service attack. 8708 8709 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8710 this issue. ([CVE-2014-3470]) 8711 8712 *Felix Gröbert, Ivan Fratric, Steve Henson* 8713 8714 * Harmonize version and its documentation. -f flag is used to display 8715 compilation flags. 8716 8717 *mancha <mancha1@zoho.com>* 8718 8719 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8720 in i2d_ECPrivateKey. 8721 8722 *mancha <mancha1@zoho.com>* 8723 8724 * Fix some double frees. These are not thought to be exploitable. 8725 8726 *mancha <mancha1@zoho.com>* 8727 8728 * Fix for the attack described in the paper "Recovering OpenSSL 8729 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8730 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8731 <http://eprint.iacr.org/2014/140> 8732 8733 Thanks to Yuval Yarom and Naomi Benger for discovering this 8734 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8735 8736 *Yuval Yarom and Naomi Benger* 8737 8738### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8739 8740 * Keep original DTLS digest and encryption contexts in retransmission 8741 structures so we can use the previous session parameters if they need 8742 to be resent. ([CVE-2013-6450]) 8743 8744 *Steve Henson* 8745 8746 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8747 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8748 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8749 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8750 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8751 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8752 8753 *Rob Stradling, Adam Langley* 8754 8755### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8756 8757 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8758 8759 This addresses the flaw in CBC record processing discovered by 8760 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8761 at: <http://www.isg.rhul.ac.uk/tls/> 8762 8763 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8764 Security Group at Royal Holloway, University of London 8765 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8766 Emilia Käsper for the initial patch. 8767 ([CVE-2013-0169]) 8768 8769 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8770 8771 * Return an error when checking OCSP signatures when key is NULL. 8772 This fixes a DoS attack. ([CVE-2013-0166]) 8773 8774 *Steve Henson* 8775 8776 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8777 the right response is stapled. Also change SSL_get_certificate() 8778 so it returns the certificate actually sent. 8779 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8780 (This is a backport) 8781 8782 *Rob Stradling <rob.stradling@comodo.com>* 8783 8784 * Fix possible deadlock when decoding public keys. 8785 8786 *Steve Henson* 8787 8788### Changes between 1.0.0i and 1.0.0j [10 May 2012] 8789 8790[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 8791OpenSSL 1.0.1.] 8792 8793 * Sanity check record length before skipping explicit IV in DTLS 8794 to fix DoS attack. 8795 8796 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8797 fuzzing as a service testing platform. 8798 ([CVE-2012-2333]) 8799 8800 *Steve Henson* 8801 8802 * Initialise tkeylen properly when encrypting CMS messages. 8803 Thanks to Solar Designer of Openwall for reporting this issue. 8804 8805 *Steve Henson* 8806 8807### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 8808 8809 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8810 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8811 in CRYPTO_realloc_clean. 8812 8813 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8814 issue and to Adam Langley <agl@chromium.org> for fixing it. 8815 ([CVE-2012-2110]) 8816 8817 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8818 8819### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 8820 8821 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 8822 in CMS and PKCS7 code. When RSA decryption fails use a random key for 8823 content decryption and always return the same error. Note: this attack 8824 needs on average 2^20 messages so it only affects automated senders. The 8825 old behaviour can be re-enabled in the CMS code by setting the 8826 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 8827 an MMA defence is not necessary. 8828 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 8829 this issue. ([CVE-2012-0884]) 8830 8831 *Steve Henson* 8832 8833 * Fix CVE-2011-4619: make sure we really are receiving a 8834 client hello before rejecting multiple SGC restarts. Thanks to 8835 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 8836 8837 *Steve Henson* 8838 8839### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 8840 8841 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 8842 Thanks to Antonio Martin, Enterprise Secure Access Research and 8843 Development, Cisco Systems, Inc. for discovering this bug and 8844 preparing a fix. ([CVE-2012-0050]) 8845 8846 *Antonio Martin* 8847 8848### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 8849 8850 * Nadhem Alfardan and Kenny Paterson have discovered an extension 8851 of the Vaudenay padding oracle attack on CBC mode encryption 8852 which enables an efficient plaintext recovery attack against 8853 the OpenSSL implementation of DTLS. Their attack exploits timing 8854 differences arising during decryption processing. A research 8855 paper describing this attack can be found at: 8856 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 8857 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8858 Security Group at Royal Holloway, University of London 8859 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 8860 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 8861 for preparing the fix. ([CVE-2011-4108]) 8862 8863 *Robin Seggelmann, Michael Tuexen* 8864 8865 * Clear bytes used for block padding of SSL 3.0 records. 8866 ([CVE-2011-4576]) 8867 8868 *Adam Langley (Google)* 8869 8870 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 8871 Kadianakis <desnacked@gmail.com> for discovering this issue and 8872 Adam Langley for preparing the fix. ([CVE-2011-4619]) 8873 8874 *Adam Langley (Google)* 8875 8876 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 8877 8878 *Andrey Kulikov <amdeich@gmail.com>* 8879 8880 * Prevent malformed RFC3779 data triggering an assertion failure. 8881 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 8882 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 8883 8884 *Rob Austein <sra@hactrn.net>* 8885 8886 * Improved PRNG seeding for VOS. 8887 8888 *Paul Green <Paul.Green@stratus.com>* 8889 8890 * Fix ssl_ciph.c set-up race. 8891 8892 *Adam Langley (Google)* 8893 8894 * Fix spurious failures in ecdsatest.c. 8895 8896 *Emilia Käsper (Google)* 8897 8898 * Fix the BIO_f_buffer() implementation (which was mixing different 8899 interpretations of the `..._len` fields). 8900 8901 *Adam Langley (Google)* 8902 8903 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 8904 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 8905 threads won't reuse the same blinding coefficients. 8906 8907 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 8908 lock to call BN_BLINDING_invert_ex, and avoids one use of 8909 BN_BLINDING_update for each BN_BLINDING structure (previously, 8910 the last update always remained unused). 8911 8912 *Emilia Käsper (Google)* 8913 8914 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 8915 8916 *Bob Buckholz (Google)* 8917 8918### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 8919 8920 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 8921 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 8922 8923 *Kaspar Brand <ossl@velox.ch>* 8924 8925 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 8926 for multi-threaded use of ECDH. ([CVE-2011-3210]) 8927 8928 *Adam Langley (Google)* 8929 8930 * Fix x509_name_ex_d2i memory leak on bad inputs. 8931 8932 *Bodo Moeller* 8933 8934 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 8935 signature public key algorithm by using OID xref utilities instead. 8936 Before this you could only use some ECC ciphersuites with SHA1 only. 8937 8938 *Steve Henson* 8939 8940 * Add protection against ECDSA timing attacks as mentioned in the paper 8941 by Billy Bob Brumley and Nicola Tuveri, see: 8942 <http://eprint.iacr.org/2011/232.pdf> 8943 8944 *Billy Bob Brumley and Nicola Tuveri* 8945 8946### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 8947 8948 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 8949 8950 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 8951 8952 * Fix bug in string printing code: if *any* escaping is enabled we must 8953 escape the escape character (backslash) or the resulting string is 8954 ambiguous. 8955 8956 *Steve Henson* 8957 8958### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 8959 8960 * Disable code workaround for ancient and obsolete Netscape browsers 8961 and servers: an attacker can use it in a ciphersuite downgrade attack. 8962 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 8963 8964 *Steve Henson* 8965 8966 * Fixed J-PAKE implementation error, originally discovered by 8967 Sebastien Martini, further info and confirmation from Stefan 8968 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 8969 8970 *Ben Laurie* 8971 8972### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 8973 8974 * Fix extension code to avoid race conditions which can result in a buffer 8975 overrun vulnerability: resumed sessions must not be modified as they can 8976 be shared by multiple threads. CVE-2010-3864 8977 8978 *Steve Henson* 8979 8980 * Fix WIN32 build system to correctly link an ENGINE directory into 8981 a DLL. 8982 8983 *Steve Henson* 8984 8985### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 8986 8987 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 8988 ([CVE-2010-1633]) 8989 8990 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 8991 8992### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 8993 8994 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 8995 context. The operation can be customised via the ctrl mechanism in 8996 case ENGINEs want to include additional functionality. 8997 8998 *Steve Henson* 8999 9000 * Tolerate yet another broken PKCS#8 key format: private key value negative. 9001 9002 *Steve Henson* 9003 9004 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 9005 output hashes compatible with older versions of OpenSSL. 9006 9007 *Willy Weisz <weisz@vcpc.univie.ac.at>* 9008 9009 * Fix compression algorithm handling: if resuming a session use the 9010 compression algorithm of the resumed session instead of determining 9011 it from client hello again. Don't allow server to change algorithm. 9012 9013 *Steve Henson* 9014 9015 * Add load_crls() function to commands tidying load_certs() too. Add option 9016 to verify utility to allow additional CRLs to be included. 9017 9018 *Steve Henson* 9019 9020 * Update OCSP request code to permit adding custom headers to the request: 9021 some responders need this. 9022 9023 *Steve Henson* 9024 9025 * The function EVP_PKEY_sign() returns <=0 on error: check return code 9026 correctly. 9027 9028 *Julia Lawall <julia@diku.dk>* 9029 9030 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 9031 needlessly dereferenced structures, used obsolete functions and 9032 didn't handle all updated verify codes correctly. 9033 9034 *Steve Henson* 9035 9036 * Disable MD2 in the default configuration. 9037 9038 *Steve Henson* 9039 9040 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 9041 indicate the initial BIO being pushed or popped. This makes it possible 9042 to determine whether the BIO is the one explicitly called or as a result 9043 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 9044 it handles reference counts correctly and doesn't zero out the I/O bio 9045 when it is not being explicitly popped. WARNING: applications which 9046 included workarounds for the old buggy behaviour will need to be modified 9047 or they could free up already freed BIOs. 9048 9049 *Steve Henson* 9050 9051 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 9052 renaming to all platforms (within the 0.9.8 branch, this was 9053 done conditionally on Netware platforms to avoid a name clash). 9054 9055 *Guenter <lists@gknw.net>* 9056 9057 * Add ECDHE and PSK support to DTLS. 9058 9059 *Michael Tuexen <tuexen@fh-muenster.de>* 9060 9061 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 9062 be used on C++. 9063 9064 *Steve Henson* 9065 9066 * Add "missing" function EVP_MD_flags() (without this the only way to 9067 retrieve a digest flags is by accessing the structure directly. Update 9068 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 9069 or cipher is registered as in the "from" argument. Print out all 9070 registered digests in the dgst usage message instead of manually 9071 attempting to work them out. 9072 9073 *Steve Henson* 9074 9075 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 9076 this allows the use of compression and extensions. Change default cipher 9077 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 9078 by default unless an application cipher string requests it. 9079 9080 *Steve Henson* 9081 9082 * Alter match criteria in PKCS12_parse(). It used to try to use local 9083 key ids to find matching certificates and keys but some PKCS#12 files 9084 don't follow the (somewhat unwritten) rules and this strategy fails. 9085 Now just gather all certificates together and the first private key 9086 then look for the first certificate that matches the key. 9087 9088 *Steve Henson* 9089 9090 * Support use of registered digest and cipher names for dgst and cipher 9091 commands instead of having to add each one as a special case. So now 9092 you can do: 9093 9094 openssl sha256 foo 9095 9096 as well as: 9097 9098 openssl dgst -sha256 foo 9099 9100 and this works for ENGINE based algorithms too. 9101 9102 *Steve Henson* 9103 9104 * Update Gost ENGINE to support parameter files. 9105 9106 *Victor B. Wagner <vitus@cryptocom.ru>* 9107 9108 * Support GeneralizedTime in ca utility. 9109 9110 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 9111 9112 * Enhance the hash format used for certificate directory links. The new 9113 form uses the canonical encoding (meaning equivalent names will work 9114 even if they aren't identical) and uses SHA1 instead of MD5. This form 9115 is incompatible with the older format and as a result c_rehash should 9116 be used to rebuild symbolic links. 9117 9118 *Steve Henson* 9119 9120 * Make PKCS#8 the default write format for private keys, replacing the 9121 traditional format. This form is standardised, more secure and doesn't 9122 include an implicit MD5 dependency. 9123 9124 *Steve Henson* 9125 9126 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 9127 committed to OpenSSL should pass this lot as a minimum. 9128 9129 *Steve Henson* 9130 9131 * Add session ticket override functionality for use by EAP-FAST. 9132 9133 *Jouni Malinen <j@w1.fi>* 9134 9135 * Modify HMAC functions to return a value. Since these can be implemented 9136 in an ENGINE errors can occur. 9137 9138 *Steve Henson* 9139 9140 * Type-checked OBJ_bsearch_ex. 9141 9142 *Ben Laurie* 9143 9144 * Type-checked OBJ_bsearch. Also some constification necessitated 9145 by type-checking. Still to come: TXT_DB, bsearch(?), 9146 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 9147 CONF_VALUE. 9148 9149 *Ben Laurie* 9150 9151 * New function OPENSSL_gmtime_adj() to add a specific number of days and 9152 seconds to a tm structure directly, instead of going through OS 9153 specific date routines. This avoids any issues with OS routines such 9154 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 9155 and X509_time_adj_ex() to cover the extended range. The existing 9156 X509_time_adj() is still usable and will no longer have any date issues. 9157 9158 *Steve Henson* 9159 9160 * Delta CRL support. New use deltas option which will attempt to locate 9161 and search any appropriate delta CRLs available. 9162 9163 This work was sponsored by Google. 9164 9165 *Steve Henson* 9166 9167 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9168 code and add additional score elements. Validate alternate CRL paths 9169 as part of the CRL checking and indicate a new error "CRL path validation 9170 error" in this case. Applications wanting additional details can use 9171 the verify callback and check the new "parent" field. If this is not 9172 NULL CRL path validation is taking place. Existing applications won't 9173 see this because it requires extended CRL support which is off by 9174 default. 9175 9176 This work was sponsored by Google. 9177 9178 *Steve Henson* 9179 9180 * Support for freshest CRL extension. 9181 9182 This work was sponsored by Google. 9183 9184 *Steve Henson* 9185 9186 * Initial indirect CRL support. Currently only supported in the CRLs 9187 passed directly and not via lookup. Process certificate issuer 9188 CRL entry extension and lookup CRL entries by bother issuer name 9189 and serial number. Check and process CRL issuer entry in IDP extension. 9190 9191 This work was sponsored by Google. 9192 9193 *Steve Henson* 9194 9195 * Add support for distinct certificate and CRL paths. The CRL issuer 9196 certificate is validated separately in this case. Only enabled if 9197 an extended CRL support flag is set: this flag will enable additional 9198 CRL functionality in future. 9199 9200 This work was sponsored by Google. 9201 9202 *Steve Henson* 9203 9204 * Add support for policy mappings extension. 9205 9206 This work was sponsored by Google. 9207 9208 *Steve Henson* 9209 9210 * Fixes to pathlength constraint, self issued certificate handling, 9211 policy processing to align with RFC3280 and PKITS tests. 9212 9213 This work was sponsored by Google. 9214 9215 *Steve Henson* 9216 9217 * Support for name constraints certificate extension. DN, email, DNS 9218 and URI types are currently supported. 9219 9220 This work was sponsored by Google. 9221 9222 *Steve Henson* 9223 9224 * To cater for systems that provide a pointer-based thread ID rather 9225 than numeric, deprecate the current numeric thread ID mechanism and 9226 replace it with a structure and associated callback type. This 9227 mechanism allows a numeric "hash" to be extracted from a thread ID in 9228 either case, and on platforms where pointers are larger than 'long', 9229 mixing is done to help ensure the numeric 'hash' is usable even if it 9230 can't be guaranteed unique. The default mechanism is to use "&errno" 9231 as a pointer-based thread ID to distinguish between threads. 9232 9233 Applications that want to provide their own thread IDs should now use 9234 CRYPTO_THREADID_set_callback() to register a callback that will call 9235 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9236 9237 Note that ERR_remove_state() is now deprecated, because it is tied 9238 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9239 to free the current thread's error state should be replaced by 9240 ERR_remove_thread_state(NULL). 9241 9242 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9243 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9244 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9245 application was previously providing a numeric thread callback that 9246 was inappropriate for distinguishing threads, then uniqueness might 9247 have been obtained with &errno that happened immediately in the 9248 intermediate development versions of OpenSSL; this is no longer the 9249 case, the numeric thread callback will now override the automatic use 9250 of &errno.) 9251 9252 *Geoff Thorpe, with help from Bodo Moeller* 9253 9254 * Initial support for different CRL issuing certificates. This covers a 9255 simple case where the self issued certificates in the chain exist and 9256 the real CRL issuer is higher in the existing chain. 9257 9258 This work was sponsored by Google. 9259 9260 *Steve Henson* 9261 9262 * Removed effectively defunct crypto/store from the build. 9263 9264 *Ben Laurie* 9265 9266 * Revamp of STACK to provide stronger type-checking. Still to come: 9267 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9268 ASN1_STRING, CONF_VALUE. 9269 9270 *Ben Laurie* 9271 9272 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9273 RAM on SSL connections. This option can save about 34k per idle SSL. 9274 9275 *Nick Mathewson* 9276 9277 * Revamp of LHASH to provide stronger type-checking. Still to come: 9278 STACK, TXT_DB, bsearch, qsort. 9279 9280 *Ben Laurie* 9281 9282 * Initial support for Cryptographic Message Syntax (aka CMS) based 9283 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9284 support for data, signedData, compressedData, digestedData and 9285 encryptedData, envelopedData types included. Scripts to check against 9286 RFC4134 examples draft and interop and consistency checks of many 9287 content types and variants. 9288 9289 *Steve Henson* 9290 9291 * Add options to enc utility to support use of zlib compression BIO. 9292 9293 *Steve Henson* 9294 9295 * Extend mk1mf to support importing of options and assembly language 9296 files from Configure script, currently only included in VC-WIN32. 9297 The assembly language rules can now optionally generate the source 9298 files from the associated perl scripts. 9299 9300 *Steve Henson* 9301 9302 * Implement remaining functionality needed to support GOST ciphersuites. 9303 Interop testing has been performed using CryptoPro implementations. 9304 9305 *Victor B. Wagner <vitus@cryptocom.ru>* 9306 9307 * s390x assembler pack. 9308 9309 *Andy Polyakov* 9310 9311 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9312 "family." 9313 9314 *Andy Polyakov* 9315 9316 * Implement Opaque PRF Input TLS extension as specified in 9317 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9318 official specification yet and no extension type assignment by 9319 IANA exists, this extension (for now) will have to be explicitly 9320 enabled when building OpenSSL by providing the extension number 9321 to use. For example, specify an option 9322 9323 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9324 9325 to the "config" or "Configure" script to enable the extension, 9326 assuming extension number 0x9527 (which is a completely arbitrary 9327 and unofficial assignment based on the MD5 hash of the Internet 9328 Draft). Note that by doing so, you potentially lose 9329 interoperability with other TLS implementations since these might 9330 be using the same extension number for other purposes. 9331 9332 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9333 opaque PRF input value to use in the handshake. This will create 9334 an internal copy of the length-'len' string at 'src', and will 9335 return non-zero for success. 9336 9337 To get more control and flexibility, provide a callback function 9338 by using 9339 9340 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9341 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9342 9343 where 9344 9345 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9346 void *arg; 9347 9348 Callback function 'cb' will be called in handshakes, and is 9349 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9350 Argument 'arg' is for application purposes (the value as given to 9351 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9352 be provided to the callback function). The callback function 9353 has to return non-zero to report success: usually 1 to use opaque 9354 PRF input just if possible, or 2 to enforce use of the opaque PRF 9355 input. In the latter case, the library will abort the handshake 9356 if opaque PRF input is not successfully negotiated. 9357 9358 Arguments 'peerinput' and 'len' given to the callback function 9359 will always be NULL and 0 in the case of a client. A server will 9360 see the client's opaque PRF input through these variables if 9361 available (NULL and 0 otherwise). Note that if the server 9362 provides an opaque PRF input, the length must be the same as the 9363 length of the client's opaque PRF input. 9364 9365 Note that the callback function will only be called when creating 9366 a new session (session resumption can resume whatever was 9367 previously negotiated), and will not be called in SSL 2.0 9368 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9369 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9370 for applications that need to enforce opaque PRF input. 9371 9372 *Bodo Moeller* 9373 9374 * Update ssl code to support digests other than SHA1+MD5 for handshake 9375 MAC. 9376 9377 *Victor B. Wagner <vitus@cryptocom.ru>* 9378 9379 * Add RFC4507 support to OpenSSL. This includes the corrections in 9380 RFC4507bis. The encrypted ticket format is an encrypted encoded 9381 SSL_SESSION structure, that way new session features are automatically 9382 supported. 9383 9384 If a client application caches session in an SSL_SESSION structure 9385 support is transparent because tickets are now stored in the encoded 9386 SSL_SESSION. 9387 9388 The SSL_CTX structure automatically generates keys for ticket 9389 protection in servers so again support should be possible 9390 with no application modification. 9391 9392 If a client or server wishes to disable RFC4507 support then the option 9393 SSL_OP_NO_TICKET can be set. 9394 9395 Add a TLS extension debugging callback to allow the contents of any client 9396 or server extensions to be examined. 9397 9398 This work was sponsored by Google. 9399 9400 *Steve Henson* 9401 9402 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9403 OpenSSL should now compile cleanly on gcc 4.2 9404 9405 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9406 9407 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9408 support including streaming MAC support: this is required for GOST 9409 ciphersuite support. 9410 9411 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9412 9413 * Add option -stream to use PKCS#7 streaming in smime utility. New 9414 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9415 to output in BER and PEM format. 9416 9417 *Steve Henson* 9418 9419 * Experimental support for use of HMAC via EVP_PKEY interface. This 9420 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9421 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9422 ENGINE support for HMAC keys which are unextractable. New -mac and 9423 -macopt options to dgst utility. 9424 9425 *Steve Henson* 9426 9427 * New option -sigopt to dgst utility. Update dgst to use 9428 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9429 alternative signing parameters such as X9.31 or PSS in the dgst 9430 utility. 9431 9432 *Steve Henson* 9433 9434 * Change ssl_cipher_apply_rule(), the internal function that does 9435 the work each time a ciphersuite string requests enabling 9436 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9437 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9438 the order of disabled ciphersuites such that those ciphersuites 9439 that most recently went from enabled to disabled not only stay 9440 in order with respect to each other, but also have higher priority 9441 than other disabled ciphersuites the next time ciphersuites are 9442 enabled again. 9443 9444 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9445 the same ciphersuites as with "HIGH" alone, but in a specific 9446 order where the PSK ciphersuites come first (since they are the 9447 most recently disabled ciphersuites when "HIGH" is parsed). 9448 9449 Also, change ssl_create_cipher_list() (using this new 9450 functionality) such that between otherwise identical 9451 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9452 the default order. 9453 9454 *Bodo Moeller* 9455 9456 * Change ssl_create_cipher_list() so that it automatically 9457 arranges the ciphersuites in reasonable order before starting 9458 to process the rule string. Thus, the definition for "DEFAULT" 9459 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9460 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9461 This makes it much easier to arrive at a reasonable default order 9462 in applications for which anonymous ciphers are OK (meaning 9463 that you can't actually use DEFAULT). 9464 9465 *Bodo Moeller; suggested by Victor Duchovni* 9466 9467 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9468 processing) into multiple integers instead of setting 9469 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9470 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9471 (These masks as well as the individual bit definitions are hidden 9472 away into the non-exported interface ssl/ssl_locl.h, so this 9473 change to the definition of the SSL_CIPHER structure shouldn't 9474 affect applications.) This give us more bits for each of these 9475 categories, so there is no longer a need to coagulate AES128 and 9476 AES256 into a single algorithm bit, and to coagulate Camellia128 9477 and Camellia256 into a single algorithm bit, which has led to all 9478 kinds of kludges. 9479 9480 Thus, among other things, the kludge introduced in 0.9.7m and 9481 0.9.8e for masking out AES256 independently of AES128 or masking 9482 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9483 9484 With the change, we also introduce new ciphersuite aliases that 9485 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9486 "CAMELLIA256". 9487 9488 *Bodo Moeller* 9489 9490 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9491 Use the leftmost N bytes of the signature input if the input is 9492 larger than the prime q (with N being the size in bytes of q). 9493 9494 *Nils Larsch* 9495 9496 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9497 it yet and it is largely untested. 9498 9499 *Steve Henson* 9500 9501 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9502 9503 *Nils Larsch* 9504 9505 * Initial incomplete changes to avoid need for function casts in OpenSSL 9506 some compilers (gcc 4.2 and later) reject their use. Safestack is 9507 reimplemented. Update ASN1 to avoid use of legacy functions. 9508 9509 *Steve Henson* 9510 9511 * Win32/64 targets are linked with Winsock2. 9512 9513 *Andy Polyakov* 9514 9515 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9516 to external functions. This can be used to increase CRL handling 9517 efficiency especially when CRLs are very large by (for example) storing 9518 the CRL revoked certificates in a database. 9519 9520 *Steve Henson* 9521 9522 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9523 new CRLs added to a directory can be used. New command line option 9524 -verify_return_error to s_client and s_server. This causes real errors 9525 to be returned by the verify callback instead of carrying on no matter 9526 what. This reflects the way a "real world" verify callback would behave. 9527 9528 *Steve Henson* 9529 9530 * GOST engine, supporting several GOST algorithms and public key formats. 9531 Kindly donated by Cryptocom. 9532 9533 *Cryptocom* 9534 9535 * Partial support for Issuing Distribution Point CRL extension. CRLs 9536 partitioned by DP are handled but no indirect CRL or reason partitioning 9537 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9538 selected via a scoring technique which handles IDP and AKID in CRLs. 9539 9540 *Steve Henson* 9541 9542 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9543 will ultimately be used for all verify operations: this will remove the 9544 X509_STORE dependency on certificate verification and allow alternative 9545 lookup methods. X509_STORE based implementations of these two callbacks. 9546 9547 *Steve Henson* 9548 9549 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9550 Modify get_crl() to find a valid (unexpired) CRL if possible. 9551 9552 *Steve Henson* 9553 9554 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9555 this would be called X509_CRL_cmp() but that name is already used by 9556 a function that just compares CRL issuer names. Cache several CRL 9557 extensions in X509_CRL structure and cache CRLDP in X509. 9558 9559 *Steve Henson* 9560 9561 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9562 this maps equivalent X509_NAME structures into a consistent structure. 9563 Name comparison can then be performed rapidly using memcmp(). 9564 9565 *Steve Henson* 9566 9567 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9568 utility. 9569 9570 *Steve Henson* 9571 9572 * Allow digests to supply their own micalg string for S/MIME type using 9573 the ctrl EVP_MD_CTRL_MICALG. 9574 9575 *Steve Henson* 9576 9577 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9578 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9579 ctrl. It can then customise the structure before and/or after signing 9580 if necessary. 9581 9582 *Steve Henson* 9583 9584 * New function OBJ_add_sigid() to allow application defined signature OIDs 9585 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9586 to free up any added signature OIDs. 9587 9588 *Steve Henson* 9589 9590 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9591 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9592 digest and cipher tables. New options added to openssl utility: 9593 list-message-digest-algorithms and list-cipher-algorithms. 9594 9595 *Steve Henson* 9596 9597 * Change the array representation of binary polynomials: the list 9598 of degrees of non-zero coefficients is now terminated with -1. 9599 Previously it was terminated with 0, which was also part of the 9600 value; thus, the array representation was not applicable to 9601 polynomials where t^0 has coefficient zero. This change makes 9602 the array representation useful in a more general context. 9603 9604 *Douglas Stebila* 9605 9606 * Various modifications and fixes to SSL/TLS cipher string 9607 handling. For ECC, the code now distinguishes between fixed ECDH 9608 with RSA certificates on the one hand and with ECDSA certificates 9609 on the other hand, since these are separate ciphersuites. The 9610 unused code for Fortezza ciphersuites has been removed. 9611 9612 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9613 (not "ECDHE"). For consistency with the code for DH 9614 certificates, use of ECDH certificates is now considered ECDH 9615 authentication, not RSA or ECDSA authentication (the latter is 9616 merely the CA's signing algorithm and not actively used in the 9617 protocol). 9618 9619 The temporary ciphersuite alias "ECCdraft" is no longer 9620 available, and ECC ciphersuites are no longer excluded from "ALL" 9621 and "DEFAULT". The following aliases now exist for RFC 4492 9622 ciphersuites, most of these by analogy with the DH case: 9623 9624 kECDHr - ECDH cert, signed with RSA 9625 kECDHe - ECDH cert, signed with ECDSA 9626 kECDH - ECDH cert (signed with either RSA or ECDSA) 9627 kEECDH - ephemeral ECDH 9628 ECDH - ECDH cert or ephemeral ECDH 9629 9630 aECDH - ECDH cert 9631 aECDSA - ECDSA cert 9632 ECDSA - ECDSA cert 9633 9634 AECDH - anonymous ECDH 9635 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9636 9637 *Bodo Moeller* 9638 9639 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9640 Use correct micalg parameters depending on digest(s) in signed message. 9641 9642 *Steve Henson* 9643 9644 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9645 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9646 9647 *Steve Henson* 9648 9649 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9650 an engine to register a method. Add ENGINE lookups for methods and 9651 functional reference processing. 9652 9653 *Steve Henson* 9654 9655 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9656 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9657 process. 9658 9659 *Steve Henson* 9660 9661 * New -resign option to smime utility. This adds one or more signers 9662 to an existing PKCS#7 signedData structure. Also -md option to use an 9663 alternative message digest algorithm for signing. 9664 9665 *Steve Henson* 9666 9667 * Tidy up PKCS#7 routines and add new functions to make it easier to 9668 create PKCS7 structures containing multiple signers. Update smime 9669 application to support multiple signers. 9670 9671 *Steve Henson* 9672 9673 * New -macalg option to pkcs12 utility to allow setting of an alternative 9674 digest MAC. 9675 9676 *Steve Henson* 9677 9678 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9679 Reorganize PBE internals to lookup from a static table using NIDs, 9680 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9681 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9682 PRF which will be automatically used with PBES2. 9683 9684 *Steve Henson* 9685 9686 * Replace the algorithm specific calls to generate keys in "req" with the 9687 new API. 9688 9689 *Steve Henson* 9690 9691 * Update PKCS#7 enveloped data routines to use new API. This is now 9692 supported by any public key method supporting the encrypt operation. A 9693 ctrl is added to allow the public key algorithm to examine or modify 9694 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9695 a no op. 9696 9697 *Steve Henson* 9698 9699 * Add a ctrl to asn1 method to allow a public key algorithm to express 9700 a default digest type to use. In most cases this will be SHA1 but some 9701 algorithms (such as GOST) need to specify an alternative digest. The 9702 return value indicates how strong the preference is 1 means optional and 9703 2 is mandatory (that is it is the only supported type). Modify 9704 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9705 use the default md. Update openssl utilities to use the default digest 9706 type for signing if it is not explicitly indicated. 9707 9708 *Steve Henson* 9709 9710 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9711 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9712 signing method from the key type. This effectively removes the link 9713 between digests and public key types. 9714 9715 *Steve Henson* 9716 9717 * Add an OID cross reference table and utility functions. Its purpose is to 9718 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9719 rsaEncryption. This will allow some of the algorithm specific hackery 9720 needed to use the correct OID to be removed. 9721 9722 *Steve Henson* 9723 9724 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9725 structures for PKCS7_sign(). They are now set up by the relevant public 9726 key ASN1 method. 9727 9728 *Steve Henson* 9729 9730 * Add provisional EC pkey method with support for ECDSA and ECDH. 9731 9732 *Steve Henson* 9733 9734 * Add support for key derivation (agreement) in the API, DH method and 9735 pkeyutl. 9736 9737 *Steve Henson* 9738 9739 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9740 public and private key formats. As a side effect these add additional 9741 command line functionality not previously available: DSA signatures can be 9742 generated and verified using pkeyutl and DH key support and generation in 9743 pkey, genpkey. 9744 9745 *Steve Henson* 9746 9747 * BeOS support. 9748 9749 *Oliver Tappe <zooey@hirschkaefer.de>* 9750 9751 * New make target "install_html_docs" installs HTML renditions of the 9752 manual pages. 9753 9754 *Oliver Tappe <zooey@hirschkaefer.de>* 9755 9756 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9757 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9758 support key and parameter generation and add initial key generation 9759 functionality for RSA. 9760 9761 *Steve Henson* 9762 9763 * Add functions for main EVP_PKEY_method operations. The undocumented 9764 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9765 `EVP_PKEY_{encrypt,decrypt}_old`. 9766 9767 *Steve Henson* 9768 9769 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9770 key API, doesn't do much yet. 9771 9772 *Steve Henson* 9773 9774 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9775 public key algorithms. New option to openssl utility: 9776 "list-public-key-algorithms" to print out info. 9777 9778 *Steve Henson* 9779 9780 * Implement the Supported Elliptic Curves Extension for 9781 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9782 9783 *Douglas Stebila* 9784 9785 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9786 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 9787 9788 *Steve Henson* 9789 9790 * New utilities pkey and pkeyparam. These are similar to algorithm specific 9791 utilities such as rsa, dsa, dsaparam etc except they process any key 9792 type. 9793 9794 *Steve Henson* 9795 9796 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 9797 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 9798 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 9799 structure. 9800 9801 *Steve Henson* 9802 9803 * Initial support for pluggable public key ASN1. 9804 De-spaghettify the public key ASN1 handling. Move public and private 9805 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 9806 algorithm specific handling to a single module within the relevant 9807 algorithm directory. Add functions to allow (near) opaque processing 9808 of public and private key structures. 9809 9810 *Steve Henson* 9811 9812 * Implement the Supported Point Formats Extension for 9813 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9814 9815 *Douglas Stebila* 9816 9817 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 9818 for the psk identity [hint] and the psk callback functions to the 9819 SSL_SESSION, SSL and SSL_CTX structure. 9820 9821 New ciphersuites: 9822 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 9823 PSK-AES256-CBC-SHA 9824 9825 New functions: 9826 SSL_CTX_use_psk_identity_hint 9827 SSL_get_psk_identity_hint 9828 SSL_get_psk_identity 9829 SSL_use_psk_identity_hint 9830 9831 *Mika Kousa and Pasi Eronen of Nokia Corporation* 9832 9833 * Add RFC 3161 compliant time stamp request creation, response generation 9834 and response verification functionality. 9835 9836 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 9837 9838 * Add initial support for TLS extensions, specifically for the server_name 9839 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 9840 have new members for a host name. The SSL data structure has an 9841 additional member `SSL_CTX *initial_ctx` so that new sessions can be 9842 stored in that context to allow for session resumption, even after the 9843 SSL has been switched to a new SSL_CTX in reaction to a client's 9844 server_name extension. 9845 9846 New functions (subject to change): 9847 9848 SSL_get_servername() 9849 SSL_get_servername_type() 9850 SSL_set_SSL_CTX() 9851 9852 New CTRL codes and macros (subject to change): 9853 9854 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 9855 - SSL_CTX_set_tlsext_servername_callback() 9856 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 9857 - SSL_CTX_set_tlsext_servername_arg() 9858 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 9859 9860 openssl s_client has a new '-servername ...' option. 9861 9862 openssl s_server has new options '-servername_host ...', '-cert2 ...', 9863 '-key2 ...', '-servername_fatal' (subject to change). This allows 9864 testing the HostName extension for a specific single host name ('-cert' 9865 and '-key' remain fallbacks for handshakes without HostName 9866 negotiation). If the unrecognized_name alert has to be sent, this by 9867 default is a warning; it becomes fatal with the '-servername_fatal' 9868 option. 9869 9870 *Peter Sylvester, Remy Allais, Christophe Renou* 9871 9872 * Whirlpool hash implementation is added. 9873 9874 *Andy Polyakov* 9875 9876 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 9877 bn(64,32). Because of instruction set limitations it doesn't have 9878 any negative impact on performance. This was done mostly in order 9879 to make it possible to share assembler modules, such as bn_mul_mont 9880 implementations, between 32- and 64-bit builds without hassle. 9881 9882 *Andy Polyakov* 9883 9884 * Move code previously exiled into file crypto/ec/ec2_smpt.c 9885 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 9886 macro. 9887 9888 *Bodo Moeller* 9889 9890 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 9891 dedicated Montgomery multiplication procedure, is introduced. 9892 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 9893 "64-bit" performance on certain 32-bit targets. 9894 9895 *Andy Polyakov* 9896 9897 * New option SSL_OP_NO_COMP to disable use of compression selectively 9898 in SSL structures. New SSL ctrl to set maximum send fragment size. 9899 Save memory by setting the I/O buffer sizes dynamically instead of 9900 using the maximum available value. 9901 9902 *Steve Henson* 9903 9904 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 9905 in addition to the text details. 9906 9907 *Bodo Moeller* 9908 9909 * Very, very preliminary EXPERIMENTAL support for printing of general 9910 ASN1 structures. This currently produces rather ugly output and doesn't 9911 handle several customised structures at all. 9912 9913 *Steve Henson* 9914 9915 * Integrated support for PVK file format and some related formats such 9916 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 9917 these in the 'rsa' and 'dsa' utilities. 9918 9919 *Steve Henson* 9920 9921 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 9922 9923 *Steve Henson* 9924 9925 * Remove the ancient ASN1_METHOD code. This was only ever used in one 9926 place for the (very old) "NETSCAPE" format certificates which are now 9927 handled using new ASN1 code equivalents. 9928 9929 *Steve Henson* 9930 9931 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 9932 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 9933 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 9934 9935 *Nils Larsch* 9936 9937 * Modify CRL distribution points extension code to print out previously 9938 unsupported fields. Enhance extension setting code to allow setting of 9939 all fields. 9940 9941 *Steve Henson* 9942 9943 * Add print and set support for Issuing Distribution Point CRL extension. 9944 9945 *Steve Henson* 9946 9947 * Change 'Configure' script to enable Camellia by default. 9948 9949 *NTT* 9950 9951OpenSSL 0.9.x 9952------------- 9953 9954### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 9955 9956 * When rejecting SSL/TLS records due to an incorrect version number, never 9957 update s->server with a new major version number. As of 9958 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 9959 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 9960 the previous behavior could result in a read attempt at NULL when 9961 receiving specific incorrect SSL/TLS records once record payload 9962 protection is active. ([CVE-2010-0740]) 9963 9964 *Bodo Moeller, Adam Langley <agl@chromium.org>* 9965 9966 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 9967 could be crashed if the relevant tables were not present (e.g. chrooted). 9968 9969 *Tomas Hoger <thoger@redhat.com>* 9970 9971### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 9972 9973 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 9974 9975 *Martin Olsson, Neel Mehta* 9976 9977 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 9978 accommodate for stack sorting, always a write lock!). 9979 9980 *Bodo Moeller* 9981 9982 * On some versions of WIN32 Heap32Next is very slow. This can cause 9983 excessive delays in the RAND_poll(): over a minute. As a workaround 9984 include a time check in the inner Heap32Next loop too. 9985 9986 *Steve Henson* 9987 9988 * The code that handled flushing of data in SSL/TLS originally used the 9989 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 9990 the problem outlined in PR#1949. The fix suggested there however can 9991 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 9992 of Apache). So instead simplify the code to flush unconditionally. 9993 This should be fine since flushing with no data to flush is a no op. 9994 9995 *Steve Henson* 9996 9997 * Handle TLS versions 2.0 and later properly and correctly use the 9998 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 9999 off ancient servers have a habit of sticking around for a while... 10000 10001 *Steve Henson* 10002 10003 * Modify compression code so it frees up structures without using the 10004 ex_data callbacks. This works around a problem where some applications 10005 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 10006 restarting) then use compression (e.g. SSL with compression) later. 10007 This results in significant per-connection memory leaks and 10008 has caused some security issues including CVE-2008-1678 and 10009 CVE-2009-4355. 10010 10011 *Steve Henson* 10012 10013 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 10014 change when encrypting or decrypting. 10015 10016 *Bodo Moeller* 10017 10018 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 10019 connect and renegotiate with servers which do not support RI. 10020 Until RI is more widely deployed this option is enabled by default. 10021 10022 *Steve Henson* 10023 10024 * Add "missing" ssl ctrls to clear options and mode. 10025 10026 *Steve Henson* 10027 10028 * If client attempts to renegotiate and doesn't support RI respond with 10029 a no_renegotiation alert as required by RFC5746. Some renegotiating 10030 TLS clients will continue a connection gracefully when they receive 10031 the alert. Unfortunately OpenSSL mishandled this alert and would hang 10032 waiting for a server hello which it will never receive. Now we treat a 10033 received no_renegotiation alert as a fatal error. This is because 10034 applications requesting a renegotiation might well expect it to succeed 10035 and would have no code in place to handle the server denying it so the 10036 only safe thing to do is to terminate the connection. 10037 10038 *Steve Henson* 10039 10040 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 10041 peer supports secure renegotiation and 0 otherwise. Print out peer 10042 renegotiation support in s_client/s_server. 10043 10044 *Steve Henson* 10045 10046 * Replace the highly broken and deprecated SPKAC certification method with 10047 the updated NID creation version. This should correctly handle UTF8. 10048 10049 *Steve Henson* 10050 10051 * Implement RFC5746. Re-enable renegotiation but require the extension 10052 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 10053 turns out to be a bad idea. It has been replaced by 10054 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 10055 SSL_CTX_set_options(). This is really not recommended unless you 10056 know what you are doing. 10057 10058 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 10059 10060 * Fixes to stateless session resumption handling. Use initial_ctx when 10061 issuing and attempting to decrypt tickets in case it has changed during 10062 servername handling. Use a non-zero length session ID when attempting 10063 stateless session resumption: this makes it possible to determine if 10064 a resumption has occurred immediately after receiving server hello 10065 (several places in OpenSSL subtly assume this) instead of later in 10066 the handshake. 10067 10068 *Steve Henson* 10069 10070 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 10071 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 10072 fixes for a few places where the return code is not checked 10073 correctly. 10074 10075 *Julia Lawall <julia@diku.dk>* 10076 10077 * Add --strict-warnings option to Configure script to include devteam 10078 warnings in other configurations. 10079 10080 *Steve Henson* 10081 10082 * Add support for --libdir option and LIBDIR variable in makefiles. This 10083 makes it possible to install openssl libraries in locations which 10084 have names other than "lib", for example "/usr/lib64" which some 10085 systems need. 10086 10087 *Steve Henson, based on patch from Jeremy Utley* 10088 10089 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 10090 X690 8.9.12 and can produce some misleading textual output of OIDs. 10091 10092 *Steve Henson, reported by Dan Kaminsky* 10093 10094 * Delete MD2 from algorithm tables. This follows the recommendation in 10095 several standards that it is not used in new applications due to 10096 several cryptographic weaknesses. For binary compatibility reasons 10097 the MD2 API is still compiled in by default. 10098 10099 *Steve Henson* 10100 10101 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 10102 and restored. 10103 10104 *Steve Henson* 10105 10106 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 10107 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 10108 clash. 10109 10110 *Guenter <lists@gknw.net>* 10111 10112 * Fix the server certificate chain building code to use X509_verify_cert(), 10113 it used to have an ad-hoc builder which was unable to cope with anything 10114 other than a simple chain. 10115 10116 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 10117 10118 * Don't check self signed certificate signatures in X509_verify_cert() 10119 by default (a flag can override this): it just wastes time without 10120 adding any security. As a useful side effect self signed root CAs 10121 with non-FIPS digests are now usable in FIPS mode. 10122 10123 *Steve Henson* 10124 10125 * In dtls1_process_out_of_seq_message() the check if the current message 10126 is already buffered was missing. For every new message was memory 10127 allocated, allowing an attacker to perform an denial of service attack 10128 with sending out of seq handshake messages until there is no memory 10129 left. Additionally every future message was buffered, even if the 10130 sequence number made no sense and would be part of another handshake. 10131 So only messages with sequence numbers less than 10 in advance will be 10132 buffered. ([CVE-2009-1378]) 10133 10134 *Robin Seggelmann, discovered by Daniel Mentz* 10135 10136 * Records are buffered if they arrive with a future epoch to be 10137 processed after finishing the corresponding handshake. There is 10138 currently no limitation to this buffer allowing an attacker to perform 10139 a DOS attack with sending records with future epochs until there is no 10140 memory left. This patch adds the pqueue_size() function to determine 10141 the size of a buffer and limits the record buffer to 100 entries. 10142 ([CVE-2009-1377]) 10143 10144 *Robin Seggelmann, discovered by Daniel Mentz* 10145 10146 * Keep a copy of frag->msg_header.frag_len so it can be used after the 10147 parent structure is freed. ([CVE-2009-1379]) 10148 10149 *Daniel Mentz* 10150 10151 * Handle non-blocking I/O properly in SSL_shutdown() call. 10152 10153 *Darryl Miles <darryl-mailinglists@netbauds.net>* 10154 10155 * Add `2.5.4.*` OIDs 10156 10157 *Ilya O. <vrghost@gmail.com>* 10158 10159### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 10160 10161 * Disable renegotiation completely - this fixes a severe security 10162 problem ([CVE-2009-3555]) at the cost of breaking all 10163 renegotiation. Renegotiation can be re-enabled by setting 10164 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10165 run-time. This is really not recommended unless you know what 10166 you're doing. 10167 10168 *Ben Laurie* 10169 10170### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10171 10172 * Don't set val to NULL when freeing up structures, it is freed up by 10173 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10174 zeroing past the valid field. ([CVE-2009-0789]) 10175 10176 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10177 10178 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10179 checked correctly. This would allow some invalid signed attributes to 10180 appear to verify correctly. ([CVE-2009-0591]) 10181 10182 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10183 10184 * Reject UniversalString and BMPString types with invalid lengths. This 10185 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10186 a legal length. ([CVE-2009-0590]) 10187 10188 *Steve Henson* 10189 10190 * Set S/MIME signing as the default purpose rather than setting it 10191 unconditionally. This allows applications to override it at the store 10192 level. 10193 10194 *Steve Henson* 10195 10196 * Permit restricted recursion of ASN1 strings. This is needed in practice 10197 to handle some structures. 10198 10199 *Steve Henson* 10200 10201 * Improve efficiency of mem_gets: don't search whole buffer each time 10202 for a '\n' 10203 10204 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10205 10206 * New -hex option for openssl rand. 10207 10208 *Matthieu Herrb* 10209 10210 * Print out UTF8String and NumericString when parsing ASN1. 10211 10212 *Steve Henson* 10213 10214 * Support NumericString type for name components. 10215 10216 *Steve Henson* 10217 10218 * Allow CC in the environment to override the automatically chosen 10219 compiler. Note that nothing is done to ensure flags work with the 10220 chosen compiler. 10221 10222 *Ben Laurie* 10223 10224### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10225 10226 * Properly check EVP_VerifyFinal() and similar return values 10227 ([CVE-2008-5077]). 10228 10229 *Ben Laurie, Bodo Moeller, Google Security Team* 10230 10231 * Enable TLS extensions by default. 10232 10233 *Ben Laurie* 10234 10235 * Allow the CHIL engine to be loaded, whether the application is 10236 multithreaded or not. (This does not release the developer from the 10237 obligation to set up the dynamic locking callbacks.) 10238 10239 *Sander Temme <sander@temme.net>* 10240 10241 * Use correct exit code if there is an error in dgst command. 10242 10243 *Steve Henson; problem pointed out by Roland Dirlewanger* 10244 10245 * Tweak Configure so that you need to say "experimental-jpake" to enable 10246 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10247 10248 *Bodo Moeller* 10249 10250 * Add experimental JPAKE support, including demo authentication in 10251 s_client and s_server. 10252 10253 *Ben Laurie* 10254 10255 * Set the comparison function in v3_addr_canonize(). 10256 10257 *Rob Austein <sra@hactrn.net>* 10258 10259 * Add support for XMPP STARTTLS in s_client. 10260 10261 *Philip Paeps <philip@freebsd.org>* 10262 10263 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10264 to ensure that even with this option, only ciphersuites in the 10265 server's preference list will be accepted. (Note that the option 10266 applies only when resuming a session, so the earlier behavior was 10267 just about the algorithm choice for symmetric cryptography.) 10268 10269 *Bodo Moeller* 10270 10271### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10272 10273 * Fix NULL pointer dereference if a DTLS server received 10274 ChangeCipherSpec as first record ([CVE-2009-1386]). 10275 10276 *PR #1679* 10277 10278 * Fix a state transition in s3_srvr.c and d1_srvr.c 10279 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10280 10281 *Nagendra Modadugu* 10282 10283 * The fix in 0.9.8c that supposedly got rid of unsafe 10284 double-checked locking was incomplete for RSA blinding, 10285 addressing just one layer of what turns out to have been 10286 doubly unsafe triple-checked locking. 10287 10288 So now fix this for real by retiring the MONT_HELPER macro 10289 in crypto/rsa/rsa_eay.c. 10290 10291 *Bodo Moeller; problem pointed out by Marius Schilder* 10292 10293 * Various precautionary measures: 10294 10295 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10296 10297 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10298 (NB: This would require knowledge of the secret session ticket key 10299 to exploit, in which case you'd be SOL either way.) 10300 10301 - Change bn_nist.c so that it will properly handle input BIGNUMs 10302 outside the expected range. 10303 10304 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10305 builds. 10306 10307 *Neel Mehta, Bodo Moeller* 10308 10309 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10310 the load fails. Useful for distros. 10311 10312 *Ben Laurie and the FreeBSD team* 10313 10314 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10315 10316 *Steve Henson* 10317 10318 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10319 10320 *Huang Ying* 10321 10322 * Expand ENGINE to support engine supplied SSL client certificate functions. 10323 10324 This work was sponsored by Logica. 10325 10326 *Steve Henson* 10327 10328 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10329 keystores. Support for SSL/TLS client authentication too. 10330 Not compiled unless enable-capieng specified to Configure. 10331 10332 This work was sponsored by Logica. 10333 10334 *Steve Henson* 10335 10336 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10337 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10338 attribute creation routines such as certificate requests and PKCS#12 10339 files. 10340 10341 *Steve Henson* 10342 10343### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10344 10345 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10346 handshake which could lead to a client crash as found using the 10347 Codenomicon TLS test suite ([CVE-2008-1672]) 10348 10349 *Steve Henson, Mark Cox* 10350 10351 * Fix double free in TLS server name extensions which could lead to 10352 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10353 10354 *Joe Orton* 10355 10356 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10357 10358 Clear the error queue to ensure that error entries left from 10359 older function calls do not interfere with the correct operation. 10360 10361 *Lutz Jaenicke, Erik de Castro Lopo* 10362 10363 * Remove root CA certificates of commercial CAs: 10364 10365 The OpenSSL project does not recommend any specific CA and does not 10366 have any policy with respect to including or excluding any CA. 10367 Therefore it does not make any sense to ship an arbitrary selection 10368 of root CA certificates with the OpenSSL software. 10369 10370 *Lutz Jaenicke* 10371 10372 * RSA OAEP patches to fix two separate invalid memory reads. 10373 The first one involves inputs when 'lzero' is greater than 10374 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10375 before the beginning of from). The second one involves inputs where 10376 the 'db' section contains nothing but zeroes (there is a one-byte 10377 invalid read after the end of 'db'). 10378 10379 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10380 10381 * Partial backport from 0.9.9-dev: 10382 10383 Introduce bn_mul_mont (dedicated Montgomery multiplication 10384 procedure) as a candidate for BIGNUM assembler implementation. 10385 While 0.9.9-dev uses assembler for various architectures, only 10386 x86_64 is available by default here in the 0.9.8 branch, and 10387 32-bit x86 is available through a compile-time setting. 10388 10389 To try the 32-bit x86 assembler implementation, use Configure 10390 option "enable-montasm" (which exists only for this backport). 10391 10392 As "enable-montasm" for 32-bit x86 disclaims code stability 10393 anyway, in this constellation we activate additional code 10394 backported from 0.9.9-dev for further performance improvements, 10395 namely BN_from_montgomery_word. (To enable this otherwise, 10396 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10397 10398 *Andy Polyakov (backport partially by Bodo Moeller)* 10399 10400 * Add TLS session ticket callback. This allows an application to set 10401 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10402 values. This is useful for key rollover for example where several key 10403 sets may exist with different names. 10404 10405 *Steve Henson* 10406 10407 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10408 This was broken until now in 0.9.8 releases, such that the only way 10409 a registered ENGINE could be used (assuming it initialises 10410 successfully on the host) was to explicitly set it as the default 10411 for the relevant algorithms. This is in contradiction with 0.9.7 10412 behaviour and the documentation. With this fix, when an ENGINE is 10413 registered into a given algorithm's table of implementations, the 10414 'uptodate' flag is reset so that auto-discovery will be used next 10415 time a new context for that algorithm attempts to select an 10416 implementation. 10417 10418 *Ian Lister (tweaked by Geoff Thorpe)* 10419 10420 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10421 implementation in the following ways: 10422 10423 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10424 hard coded. 10425 10426 Lack of BER streaming support means one pass streaming processing is 10427 only supported if data is detached: setting the streaming flag is 10428 ignored for embedded content. 10429 10430 CMS support is disabled by default and must be explicitly enabled 10431 with the enable-cms configuration option. 10432 10433 *Steve Henson* 10434 10435 * Update the GMP engine glue to do direct copies between BIGNUM and 10436 mpz_t when openssl and GMP use the same limb size. Otherwise the 10437 existing "conversion via a text string export" trick is still used. 10438 10439 *Paul Sheer <paulsheer@gmail.com>* 10440 10441 * Zlib compression BIO. This is a filter BIO which compressed and 10442 uncompresses any data passed through it. 10443 10444 *Steve Henson* 10445 10446 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10447 RFC3394 compatible AES key wrapping. 10448 10449 *Steve Henson* 10450 10451 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10452 sets string data without copying. X509_ALGOR_set0() and 10453 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10454 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10455 from an X509_ATTRIBUTE structure optionally checking it occurs only 10456 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10457 data. 10458 10459 *Steve Henson* 10460 10461 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10462 to get the expected BN_FLG_CONSTTIME behavior. 10463 10464 *Bodo Moeller (Google)* 10465 10466 * Netware support: 10467 10468 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10469 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10470 - added some more tests to do_tests.pl 10471 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10472 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10473 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10474 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10475 - various changes to netware.pl to enable gcc-cross builds on Win32 10476 platform 10477 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10478 - various changes to fix missing prototype warnings 10479 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10480 - added AES, WHIRLPOOL and CPUID assembler code to build files 10481 - added missing AES assembler make rules to mk1mf.pl 10482 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10483 10484 *Guenter Knauf <eflash@gmx.net>* 10485 10486 * Implement certificate status request TLS extension defined in RFC3546. 10487 A client can set the appropriate parameters and receive the encoded 10488 OCSP response via a callback. A server can query the supplied parameters 10489 and set the encoded OCSP response in the callback. Add simplified examples 10490 to s_client and s_server. 10491 10492 *Steve Henson* 10493 10494### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10495 10496 * Fix various bugs: 10497 + Binary incompatibility of ssl_ctx_st structure 10498 + DTLS interoperation with non-compliant servers 10499 + Don't call get_session_cb() without proposed session 10500 + Fix ia64 assembler code 10501 10502 *Andy Polyakov, Steve Henson* 10503 10504### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10505 10506 * DTLS Handshake overhaul. There were longstanding issues with 10507 OpenSSL DTLS implementation, which were making it impossible for 10508 RFC 4347 compliant client to communicate with OpenSSL server. 10509 Unfortunately just fixing these incompatibilities would "cut off" 10510 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10511 server keeps tolerating non RFC compliant syntax. The opposite is 10512 not true, 0.9.8f client can not communicate with earlier server. 10513 This update even addresses CVE-2007-4995. 10514 10515 *Andy Polyakov* 10516 10517 * Changes to avoid need for function casts in OpenSSL: some compilers 10518 (gcc 4.2 and later) reject their use. 10519 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10520 Steve Henson* 10521 10522 * Add RFC4507 support to OpenSSL. This includes the corrections in 10523 RFC4507bis. The encrypted ticket format is an encrypted encoded 10524 SSL_SESSION structure, that way new session features are automatically 10525 supported. 10526 10527 If a client application caches session in an SSL_SESSION structure 10528 support is transparent because tickets are now stored in the encoded 10529 SSL_SESSION. 10530 10531 The SSL_CTX structure automatically generates keys for ticket 10532 protection in servers so again support should be possible 10533 with no application modification. 10534 10535 If a client or server wishes to disable RFC4507 support then the option 10536 SSL_OP_NO_TICKET can be set. 10537 10538 Add a TLS extension debugging callback to allow the contents of any client 10539 or server extensions to be examined. 10540 10541 This work was sponsored by Google. 10542 10543 *Steve Henson* 10544 10545 * Add initial support for TLS extensions, specifically for the server_name 10546 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10547 have new members for a host name. The SSL data structure has an 10548 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10549 stored in that context to allow for session resumption, even after the 10550 SSL has been switched to a new SSL_CTX in reaction to a client's 10551 server_name extension. 10552 10553 New functions (subject to change): 10554 10555 SSL_get_servername() 10556 SSL_get_servername_type() 10557 SSL_set_SSL_CTX() 10558 10559 New CTRL codes and macros (subject to change): 10560 10561 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10562 - SSL_CTX_set_tlsext_servername_callback() 10563 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10564 - SSL_CTX_set_tlsext_servername_arg() 10565 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10566 10567 openssl s_client has a new '-servername ...' option. 10568 10569 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10570 '-key2 ...', '-servername_fatal' (subject to change). This allows 10571 testing the HostName extension for a specific single host name ('-cert' 10572 and '-key' remain fallbacks for handshakes without HostName 10573 negotiation). If the unrecognized_name alert has to be sent, this by 10574 default is a warning; it becomes fatal with the '-servername_fatal' 10575 option. 10576 10577 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10578 10579 * Add AES and SSE2 assembly language support to VC++ build. 10580 10581 *Steve Henson* 10582 10583 * Mitigate attack on final subtraction in Montgomery reduction. 10584 10585 *Andy Polyakov* 10586 10587 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10588 (which previously caused an internal error). 10589 10590 *Bodo Moeller* 10591 10592 * Squeeze another 10% out of IGE mode when in != out. 10593 10594 *Ben Laurie* 10595 10596 * AES IGE mode speedup. 10597 10598 *Dean Gaudet (Google)* 10599 10600 * Add the Korean symmetric 128-bit cipher SEED (see 10601 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10602 add SEED ciphersuites from RFC 4162: 10603 10604 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10605 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10606 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10607 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10608 10609 To minimize changes between patchlevels in the OpenSSL 0.9.8 10610 series, SEED remains excluded from compilation unless OpenSSL 10611 is configured with 'enable-seed'. 10612 10613 *KISA, Bodo Moeller* 10614 10615 * Mitigate branch prediction attacks, which can be practical if a 10616 single processor is shared, allowing a spy process to extract 10617 information. For detailed background information, see 10618 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10619 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10620 and Necessary Software Countermeasures"). The core of the change 10621 are new versions BN_div_no_branch() and 10622 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10623 respectively, which are slower, but avoid the security-relevant 10624 conditional branches. These are automatically called by BN_div() 10625 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10626 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10627 remove a conditional branch. 10628 10629 BN_FLG_CONSTTIME is the new name for the previous 10630 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10631 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10632 in the exponent causes BN_mod_exp_mont() to use the alternative 10633 implementation in BN_mod_exp_mont_consttime().) The old name 10634 remains as a deprecated alias. 10635 10636 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10637 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10638 constant-time implementations for more than just exponentiation. 10639 Here too the old name is kept as a deprecated alias. 10640 10641 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10642 the BN_BLINDING structure gets an independent copy of the 10643 modulus. This means that the previous `BIGNUM *m` argument to 10644 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10645 essentially becomes `const BIGNUM *m`, although we can't actually 10646 change this in the header file before 0.9.9. It allows 10647 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10648 enable BN_FLG_CONSTTIME. 10649 10650 *Matthew D Wood (Intel Corp)* 10651 10652 * In the SSL/TLS server implementation, be strict about session ID 10653 context matching (which matters if an application uses a single 10654 external cache for different purposes). Previously, 10655 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10656 set. This did ensure strict client verification, but meant that, 10657 with applications using a single external cache for quite 10658 different requirements, clients could circumvent ciphersuite 10659 restrictions for a given session ID context by starting a session 10660 in a different context. 10661 10662 *Bodo Moeller* 10663 10664 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10665 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10666 authentication-only ciphersuites. 10667 10668 *Bodo Moeller* 10669 10670 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10671 not complete and could lead to a possible single byte overflow 10672 ([CVE-2007-5135]) [Ben Laurie] 10673 10674### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10675 10676 * Since AES128 and AES256 (and similarly Camellia128 and 10677 Camellia256) share a single mask bit in the logic of 10678 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10679 kludge to work properly if AES128 is available and AES256 isn't 10680 (or if Camellia128 is available and Camellia256 isn't). 10681 10682 *Victor Duchovni* 10683 10684 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10685 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10686 When a point or a seed is encoded in a BIT STRING, we need to 10687 prevent the removal of trailing zero bits to get the proper DER 10688 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10689 of a NamedBitList, for which trailing 0 bits need to be removed.) 10690 10691 *Bodo Moeller* 10692 10693 * Have SSL/TLS server implementation tolerate "mismatched" record 10694 protocol version while receiving ClientHello even if the 10695 ClientHello is fragmented. (The server can't insist on the 10696 particular protocol version it has chosen before the ServerHello 10697 message has informed the client about his choice.) 10698 10699 *Bodo Moeller* 10700 10701 * Add RFC 3779 support. 10702 10703 *Rob Austein for ARIN, Ben Laurie* 10704 10705 * Load error codes if they are not already present instead of using a 10706 static variable. This allows them to be cleanly unloaded and reloaded. 10707 Improve header file function name parsing. 10708 10709 *Steve Henson* 10710 10711 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10712 or CAPABILITY handshake as required by RFCs. 10713 10714 *Goetz Babin-Ebell* 10715 10716### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10717 10718 * Introduce limits to prevent malicious keys being able to 10719 cause a denial of service. ([CVE-2006-2940]) 10720 10721 *Steve Henson, Bodo Moeller* 10722 10723 * Fix ASN.1 parsing of certain invalid structures that can result 10724 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10725 10726 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10727 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10728 10729 * Fix SSL client code which could crash if connecting to a 10730 malicious SSLv2 server. ([CVE-2006-4343]) 10731 10732 *Tavis Ormandy and Will Drewry, Google Security Team* 10733 10734 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10735 match only those. Before that, "AES256-SHA" would be interpreted 10736 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10737 the same strength classification in 0.9.7h) as we currently only 10738 have a single AES bit in the ciphersuite description bitmap. 10739 That change, however, also applied to ciphersuite strings such as 10740 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10741 namely, SSL 2.0 ciphersuites in addition to the more common ones 10742 from SSL 3.0/TLS 1.0. 10743 10744 So we change the selection algorithm again: Naming an explicit 10745 ciphersuite selects this one ciphersuite, and any other similar 10746 ciphersuite (same bitmap) from *other* protocol versions. 10747 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10748 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10749 10750 Since SSL 2.0 does not have any ciphersuites for which the 10751 128/256 bit distinction would be relevant, this works for now. 10752 The proper fix will be to use different bits for AES128 and 10753 AES256, which would have avoided the problems from the beginning; 10754 however, bits are scarce, so we can only do this in a new release 10755 (not just a patchlevel) when we can change the SSL_CIPHER 10756 definition to split the single 'unsigned long mask' bitmap into 10757 multiple values to extend the available space. 10758 10759 *Bodo Moeller* 10760 10761### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10762 10763 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10764 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10765 10766 * Add AES IGE and biIGE modes. 10767 10768 *Ben Laurie* 10769 10770 * Change the Unix randomness entropy gathering to use poll() when 10771 possible instead of select(), since the latter has some 10772 undesirable limitations. 10773 10774 *Darryl Miles via Richard Levitte and Bodo Moeller* 10775 10776 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10777 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10778 cannot be implicitly activated as part of, e.g., the "AES" alias. 10779 However, please upgrade to OpenSSL 0.9.9[-dev] for 10780 non-experimental use of the ECC ciphersuites to get TLS extension 10781 support, which is required for curve and point format negotiation 10782 to avoid potential handshake problems. 10783 10784 *Bodo Moeller* 10785 10786 * Disable rogue ciphersuites: 10787 10788 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 10789 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 10790 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 10791 10792 The latter two were purportedly from 10793 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 10794 appear there. 10795 10796 Also deactivate the remaining ciphersuites from 10797 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 10798 unofficial, and the ID has long expired. 10799 10800 *Bodo Moeller* 10801 10802 * Fix RSA blinding Heisenbug (problems sometimes occurred on 10803 dual-core machines) and other potential thread-safety issues. 10804 10805 *Bodo Moeller* 10806 10807 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 10808 versions), which is now available for royalty-free use 10809 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 10810 Also, add Camellia TLS ciphersuites from RFC 4132. 10811 10812 To minimize changes between patchlevels in the OpenSSL 0.9.8 10813 series, Camellia remains excluded from compilation unless OpenSSL 10814 is configured with 'enable-camellia'. 10815 10816 *NTT* 10817 10818 * Disable the padding bug check when compression is in use. The padding 10819 bug check assumes the first packet is of even length, this is not 10820 necessarily true if compression is enabled and can result in false 10821 positives causing handshake failure. The actual bug test is ancient 10822 code so it is hoped that implementations will either have fixed it by 10823 now or any which still have the bug do not support compression. 10824 10825 *Steve Henson* 10826 10827### Changes between 0.9.8a and 0.9.8b [04 May 2006] 10828 10829 * When applying a cipher rule check to see if string match is an explicit 10830 cipher suite and only match that one cipher suite if it is. 10831 10832 *Steve Henson* 10833 10834 * Link in manifests for VC++ if needed. 10835 10836 *Austin Ziegler <halostatue@gmail.com>* 10837 10838 * Update support for ECC-based TLS ciphersuites according to 10839 draft-ietf-tls-ecc-12.txt with proposed changes (but without 10840 TLS extensions, which are supported starting with the 0.9.9 10841 branch, not in the OpenSSL 0.9.8 branch). 10842 10843 *Douglas Stebila* 10844 10845 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 10846 opaque EVP_CIPHER_CTX handling. 10847 10848 *Steve Henson* 10849 10850 * Fixes and enhancements to zlib compression code. We now only use 10851 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 10852 to conform with the standards mentioned here: 10853 <http://www.zlib.net/DLL_FAQ.txt> 10854 Static zlib linking now works on Windows and the new --with-zlib-include 10855 --with-zlib-lib options to Configure can be used to supply the location 10856 of the headers and library. Gracefully handle case where zlib library 10857 can't be loaded. 10858 10859 *Steve Henson* 10860 10861 * Several fixes and enhancements to the OID generation code. The old code 10862 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 10863 handle numbers larger than ULONG_MAX, truncated printing and had a 10864 non standard OBJ_obj2txt() behaviour. 10865 10866 *Steve Henson* 10867 10868 * Add support for building of engines under engine/ as shared libraries 10869 under VC++ build system. 10870 10871 *Steve Henson* 10872 10873 * Corrected the numerous bugs in the Win32 path splitter in DSO. 10874 Hopefully, we will not see any false combination of paths any more. 10875 10876 *Richard Levitte* 10877 10878### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 10879 10880 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 10881 (part of SSL_OP_ALL). This option used to disable the 10882 countermeasure against man-in-the-middle protocol-version 10883 rollback in the SSL 2.0 server implementation, which is a bad 10884 idea. ([CVE-2005-2969]) 10885 10886 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 10887 for Information Security, National Institute of Advanced Industrial 10888 Science and Technology [AIST], Japan)* 10889 10890 * Add two function to clear and return the verify parameter flags. 10891 10892 *Steve Henson* 10893 10894 * Keep cipherlists sorted in the source instead of sorting them at 10895 runtime, thus removing the need for a lock. 10896 10897 *Nils Larsch* 10898 10899 * Avoid some small subgroup attacks in Diffie-Hellman. 10900 10901 *Nick Mathewson and Ben Laurie* 10902 10903 * Add functions for well-known primes. 10904 10905 *Nick Mathewson* 10906 10907 * Extended Windows CE support. 10908 10909 *Satoshi Nakamura and Andy Polyakov* 10910 10911 * Initialize SSL_METHOD structures at compile time instead of during 10912 runtime, thus removing the need for a lock. 10913 10914 *Steve Henson* 10915 10916 * Make PKCS7_decrypt() work even if no certificate is supplied by 10917 attempting to decrypt each encrypted key in turn. Add support to 10918 smime utility. 10919 10920 *Steve Henson* 10921 10922### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 10923 10924[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 10925OpenSSL 0.9.8.] 10926 10927 * Add libcrypto.pc and libssl.pc for those who feel they need them. 10928 10929 *Richard Levitte* 10930 10931 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 10932 key into the same file any more. 10933 10934 *Richard Levitte* 10935 10936 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 10937 10938 *Andy Polyakov* 10939 10940 * Add -utf8 command line and config file option to 'ca'. 10941 10942 *Stefan <stf@udoma.org* 10943 10944 * Removed the macro des_crypt(), as it seems to conflict with some 10945 libraries. Use DES_crypt(). 10946 10947 *Richard Levitte* 10948 10949 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 10950 involves renaming the source and generated shared-libs for 10951 both. The engines will accept the corrected or legacy ids 10952 ('ncipher' and '4758_cca' respectively) when binding. NB, 10953 this only applies when building 'shared'. 10954 10955 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 10956 10957 * Add attribute functions to EVP_PKEY structure. Modify 10958 PKCS12_create() to recognize a CSP name attribute and 10959 use it. Make -CSP option work again in pkcs12 utility. 10960 10961 *Steve Henson* 10962 10963 * Add new functionality to the bn blinding code: 10964 - automatic re-creation of the BN_BLINDING parameters after 10965 a fixed number of uses (currently 32) 10966 - add new function for parameter creation 10967 - introduce flags to control the update behaviour of the 10968 BN_BLINDING parameters 10969 - hide BN_BLINDING structure 10970 Add a second BN_BLINDING slot to the RSA structure to improve 10971 performance when a single RSA object is shared among several 10972 threads. 10973 10974 *Nils Larsch* 10975 10976 * Add support for DTLS. 10977 10978 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 10979 10980 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 10981 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 10982 10983 *Walter Goulet* 10984 10985 * Remove buggy and incomplete DH cert support from 10986 ssl/ssl_rsa.c and ssl/s3_both.c 10987 10988 *Nils Larsch* 10989 10990 * Use SHA-1 instead of MD5 as the default digest algorithm for 10991 the `apps/openssl` commands. 10992 10993 *Nils Larsch* 10994 10995 * Compile clean with "-Wall -Wmissing-prototypes 10996 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 10997 DEBUG_SAFESTACK must also be set. 10998 10999 *Ben Laurie* 11000 11001 * Change ./Configure so that certain algorithms can be disabled by default. 11002 The new counterpiece to "no-xxx" is "enable-xxx". 11003 11004 The patented RC5 and MDC2 algorithms will now be disabled unless 11005 "enable-rc5" and "enable-mdc2", respectively, are specified. 11006 11007 (IDEA remains enabled despite being patented. This is because IDEA 11008 is frequently required for interoperability, and there is no license 11009 fee for non-commercial use. As before, "no-idea" can be used to 11010 avoid this algorithm.) 11011 11012 *Bodo Moeller* 11013 11014 * Add processing of proxy certificates (see RFC 3820). This work was 11015 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 11016 EGEE (Enabling Grids for E-science in Europe). 11017 11018 *Richard Levitte* 11019 11020 * RC4 performance overhaul on modern architectures/implementations, such 11021 as Intel P4, IA-64 and AMD64. 11022 11023 *Andy Polyakov* 11024 11025 * New utility extract-section.pl. This can be used specify an alternative 11026 section number in a pod file instead of having to treat each file as 11027 a separate case in Makefile. This can be done by adding two lines to the 11028 pod file: 11029 11030 =for comment openssl_section:XXX 11031 11032 The blank line is mandatory. 11033 11034 *Steve Henson* 11035 11036 * New arguments -certform, -keyform and -pass for s_client and s_server 11037 to allow alternative format key and certificate files and passphrase 11038 sources. 11039 11040 *Steve Henson* 11041 11042 * New structure X509_VERIFY_PARAM which combines current verify parameters, 11043 update associated structures and add various utility functions. 11044 11045 Add new policy related verify parameters, include policy checking in 11046 standard verify code. Enhance 'smime' application with extra parameters 11047 to support policy checking and print out. 11048 11049 *Steve Henson* 11050 11051 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 11052 Nehemiah processors. These extensions support AES encryption in hardware 11053 as well as RNG (though RNG support is currently disabled). 11054 11055 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 11056 11057 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 11058 11059 *Geoff Thorpe* 11060 11061 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 11062 11063 *Andy Polyakov and a number of other people* 11064 11065 * Improved PowerPC platform support. Most notably BIGNUM assembler 11066 implementation contributed by IBM. 11067 11068 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 11069 11070 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 11071 exponent rather than 'unsigned long'. There is a corresponding change to 11072 the new 'rsa_keygen' element of the RSA_METHOD structure. 11073 11074 *Jelte Jansen, Geoff Thorpe* 11075 11076 * Functionality for creating the initial serial number file is now 11077 moved from CA.pl to the 'ca' utility with a new option -create_serial. 11078 11079 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 11080 number file to 1, which is bound to cause problems. To avoid 11081 the problems while respecting compatibility between different 0.9.7 11082 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 11083 CA.pl for serial number initialization. With the new release 0.9.8, 11084 we can fix the problem directly in the 'ca' utility.) 11085 11086 *Steve Henson* 11087 11088 * Reduced header interdependencies by declaring more opaque objects in 11089 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 11090 give fewer recursive includes, which could break lazy source code - so 11091 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 11092 developers should define this symbol when building and using openssl to 11093 ensure they track the recommended behaviour, interfaces, [etc], but 11094 backwards-compatible behaviour prevails when this isn't defined. 11095 11096 *Geoff Thorpe* 11097 11098 * New function X509_POLICY_NODE_print() which prints out policy nodes. 11099 11100 *Steve Henson* 11101 11102 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 11103 This will generate a random key of the appropriate length based on the 11104 cipher context. The EVP_CIPHER can provide its own random key generation 11105 routine to support keys of a specific form. This is used in the des and 11106 3des routines to generate a key of the correct parity. Update S/MIME 11107 code to use new functions and hence generate correct parity DES keys. 11108 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 11109 valid (weak or incorrect parity). 11110 11111 *Steve Henson* 11112 11113 * Add a local set of CRLs that can be used by X509_verify_cert() as well 11114 as looking them up. This is useful when the verified structure may contain 11115 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 11116 present unless the new PKCS7_NO_CRL flag is asserted. 11117 11118 *Steve Henson* 11119 11120 * Extend ASN1 oid configuration module. It now additionally accepts the 11121 syntax: 11122 11123 shortName = some long name, 1.2.3.4 11124 11125 *Steve Henson* 11126 11127 * Reimplemented the BN_CTX implementation. There is now no more static 11128 limitation on the number of variables it can handle nor the depth of the 11129 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 11130 information can now expand as required, and rather than having a single 11131 static array of bignums, BN_CTX now uses a linked-list of such arrays 11132 allowing it to expand on demand whilst maintaining the usefulness of 11133 BN_CTX's "bundling". 11134 11135 *Geoff Thorpe* 11136 11137 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 11138 to allow all RSA operations to function using a single BN_CTX. 11139 11140 *Geoff Thorpe* 11141 11142 * Preliminary support for certificate policy evaluation and checking. This 11143 is initially intended to pass the tests outlined in "Conformance Testing 11144 of Relying Party Client Certificate Path Processing Logic" v1.07. 11145 11146 *Steve Henson* 11147 11148 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 11149 remained unused and not that useful. A variety of other little bignum 11150 tweaks and fixes have also been made continuing on from the audit (see 11151 below). 11152 11153 *Geoff Thorpe* 11154 11155 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 11156 associated ASN1, EVP and SSL functions and old ASN1 macros. 11157 11158 *Richard Levitte* 11159 11160 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 11161 and this should never fail. So the return value from the use of 11162 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11163 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11164 11165 *Geoff Thorpe* 11166 11167 * BN_CTX_get() should return zero-valued bignums, providing the same 11168 initialised value as BN_new(). 11169 11170 *Geoff Thorpe, suggested by Ulf Möller* 11171 11172 * Support for inhibitAnyPolicy certificate extension. 11173 11174 *Steve Henson* 11175 11176 * An audit of the BIGNUM code is underway, for which debugging code is 11177 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11178 is considered valid when processing BIGNUMs, and causes execution to 11179 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11180 further steps are taken to deliberately pollute unused data in BIGNUM 11181 structures to try and expose faulty code further on. For now, openssl will 11182 (in its default mode of operation) continue to tolerate the inconsistent 11183 forms that it has tolerated in the past, but authors and packagers should 11184 consider trying openssl and their own applications when compiled with 11185 these debugging symbols defined. It will help highlight potential bugs in 11186 their own code, and will improve the test coverage for OpenSSL itself. At 11187 some point, these tighter rules will become openssl's default to improve 11188 maintainability, though the assert()s and other overheads will remain only 11189 in debugging configurations. See bn.h for more details. 11190 11191 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11192 11193 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11194 that can only be obtained through BN_CTX_new() (which implicitly 11195 initialises it). The presence of this function only made it possible 11196 to overwrite an existing structure (and cause memory leaks). 11197 11198 *Geoff Thorpe* 11199 11200 * Because of the callback-based approach for implementing LHASH as a 11201 template type, lh_insert() adds opaque objects to hash-tables and 11202 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11203 to clean up those corresponding objects before destroying the hash table 11204 (and losing the object pointers). So some over-zealous constifications in 11205 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11206 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11207 prototyped to have "const" restrictions on the object pointers they are 11208 given (and so aren't required to cast them away any more). 11209 11210 *Geoff Thorpe* 11211 11212 * The tmdiff.h API was so ugly and minimal that our own timing utility 11213 (speed) prefers to use its own implementation. The two implementations 11214 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11215 its object type properly exposed (MS_TM) instead of casting to/from 11216 `char *`. This may still change yet if someone realises MS_TM and 11217 `ms_time_***` 11218 aren't necessarily the greatest nomenclatures - but this is what was used 11219 internally to the implementation so I've used that for now. 11220 11221 *Geoff Thorpe* 11222 11223 * Ensure that deprecated functions do not get compiled when 11224 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11225 the self-tests were still using deprecated key-generation functions so 11226 these have been updated also. 11227 11228 *Geoff Thorpe* 11229 11230 * Reorganise PKCS#7 code to separate the digest location functionality 11231 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11232 New function PKCS7_set_digest() to set the digest type for PKCS#7 11233 digestedData type. Add additional code to correctly generate the 11234 digestedData type and add support for this type in PKCS7 initialization 11235 functions. 11236 11237 *Steve Henson* 11238 11239 * New function PKCS7_set0_type_other() this initializes a PKCS7 11240 structure of type "other". 11241 11242 *Steve Henson* 11243 11244 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11245 sure the loop does correctly stop and breaking ("division by zero") 11246 modulus operations are not performed. The (pre-generated) prime 11247 table crypto/bn/bn_prime.h was already correct, but it could not be 11248 re-generated on some platforms because of the "division by zero" 11249 situation in the script. 11250 11251 *Ralf S. Engelschall* 11252 11253 * Update support for ECC-based TLS ciphersuites according to 11254 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11255 SHA-1 now is only used for "small" curves (where the 11256 representation of a field element takes up to 24 bytes); for 11257 larger curves, the field element resulting from ECDH is directly 11258 used as premaster secret. 11259 11260 *Douglas Stebila (Sun Microsystems Laboratories)* 11261 11262 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11263 curve secp160r1 to the tests. 11264 11265 *Douglas Stebila (Sun Microsystems Laboratories)* 11266 11267 * Add the possibility to load symbols globally with DSO. 11268 11269 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11270 11271 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11272 control of the error stack. 11273 11274 *Richard Levitte* 11275 11276 * Add support for STORE in ENGINE. 11277 11278 *Richard Levitte* 11279 11280 * Add the STORE type. The intention is to provide a common interface 11281 to certificate and key stores, be they simple file-based stores, or 11282 HSM-type store, or LDAP stores, or... 11283 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11284 11285 *Richard Levitte* 11286 11287 * Add a generic structure called OPENSSL_ITEM. This can be used to 11288 pass a list of arguments to any function as well as provide a way 11289 for a function to pass data back to the caller. 11290 11291 *Richard Levitte* 11292 11293 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11294 works like BUF_strdup() but can be used to duplicate a portion of 11295 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11296 a memory area. 11297 11298 *Richard Levitte* 11299 11300 * Add the function sk_find_ex() which works like sk_find(), but will 11301 return an index to an element even if an exact match couldn't be 11302 found. The index is guaranteed to point at the element where the 11303 searched-for key would be inserted to preserve sorting order. 11304 11305 *Richard Levitte* 11306 11307 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11308 takes an extra flags argument for optional functionality. Currently, 11309 the following flags are defined: 11310 11311 OBJ_BSEARCH_VALUE_ON_NOMATCH 11312 This one gets OBJ_bsearch_ex() to return a pointer to the first 11313 element where the comparing function returns a negative or zero 11314 number. 11315 11316 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11317 This one gets OBJ_bsearch_ex() to return a pointer to the first 11318 element where the comparing function returns zero. This is useful 11319 if there are more than one element where the comparing function 11320 returns zero. 11321 11322 *Richard Levitte* 11323 11324 * Make it possible to create self-signed certificates with 'openssl ca' 11325 in such a way that the self-signed certificate becomes part of the 11326 CA database and uses the same mechanisms for serial number generation 11327 as all other certificate signing. The new flag '-selfsign' enables 11328 this functionality. Adapt CA.sh and CA.pl.in. 11329 11330 *Richard Levitte* 11331 11332 * Add functionality to check the public key of a certificate request 11333 against a given private. This is useful to check that a certificate 11334 request can be signed by that key (self-signing). 11335 11336 *Richard Levitte* 11337 11338 * Make it possible to have multiple active certificates with the same 11339 subject in the CA index file. This is done only if the keyword 11340 'unique_subject' is set to 'no' in the main CA section (default 11341 if 'CA_default') of the configuration file. The value is saved 11342 with the database itself in a separate index attribute file, 11343 named like the index file with '.attr' appended to the name. 11344 11345 *Richard Levitte* 11346 11347 * Generate multi-valued AVAs using '+' notation in config files for 11348 req and dirName. 11349 11350 *Steve Henson* 11351 11352 * Support for nameConstraints certificate extension. 11353 11354 *Steve Henson* 11355 11356 * Support for policyConstraints certificate extension. 11357 11358 *Steve Henson* 11359 11360 * Support for policyMappings certificate extension. 11361 11362 *Steve Henson* 11363 11364 * Make sure the default DSA_METHOD implementation only uses its 11365 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11366 and change its own handlers to be NULL so as to remove unnecessary 11367 indirection. This lets alternative implementations fallback to the 11368 default implementation more easily. 11369 11370 *Geoff Thorpe* 11371 11372 * Support for directoryName in GeneralName related extensions 11373 in config files. 11374 11375 *Steve Henson* 11376 11377 * Make it possible to link applications using Makefile.shared. 11378 Make that possible even when linking against static libraries! 11379 11380 *Richard Levitte* 11381 11382 * Support for single pass processing for S/MIME signing. This now 11383 means that S/MIME signing can be done from a pipe, in addition 11384 cleartext signing (multipart/signed type) is effectively streaming 11385 and the signed data does not need to be all held in memory. 11386 11387 This is done with a new flag PKCS7_STREAM. When this flag is set 11388 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11389 is done after the data is output (and digests calculated) in 11390 SMIME_write_PKCS7(). 11391 11392 *Steve Henson* 11393 11394 * Add full support for -rpath/-R, both in shared libraries and 11395 applications, at least on the platforms where it's known how 11396 to do it. 11397 11398 *Richard Levitte* 11399 11400 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11401 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11402 will now compute a table of multiples of the generator that 11403 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11404 faster (notably in the case of a single point multiplication, 11405 scalar * generator). 11406 11407 *Nils Larsch, Bodo Moeller* 11408 11409 * IPv6 support for certificate extensions. The various extensions 11410 which use the IP:a.b.c.d can now take IPv6 addresses using the 11411 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11412 correctly. 11413 11414 *Steve Henson* 11415 11416 * Added an ENGINE that implements RSA by performing private key 11417 exponentiations with the GMP library. The conversions to and from 11418 GMP's mpz_t format aren't optimised nor are any montgomery forms 11419 cached, and on x86 it appears OpenSSL's own performance has caught up. 11420 However there are likely to be other architectures where GMP could 11421 provide a boost. This ENGINE is not built in by default, but it can be 11422 specified at Configure time and should be accompanied by the necessary 11423 linker additions, eg; 11424 ./config -DOPENSSL_USE_GMP -lgmp 11425 11426 *Geoff Thorpe* 11427 11428 * "openssl engine" will not display ENGINE/DSO load failure errors when 11429 testing availability of engines with "-t" - the old behaviour is 11430 produced by increasing the feature's verbosity with "-tt". 11431 11432 *Geoff Thorpe* 11433 11434 * ECDSA routines: under certain error conditions uninitialized BN objects 11435 could be freed. Solution: make sure initialization is performed early 11436 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11437 via PR#459) 11438 11439 *Lutz Jaenicke* 11440 11441 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11442 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11443 software implementations. For DSA and DH, parameter generation can 11444 also be overridden by providing the appropriate method callbacks. 11445 11446 *Geoff Thorpe* 11447 11448 * Change the "progress" mechanism used in key-generation and 11449 primality testing to functions that take a new BN_GENCB pointer in 11450 place of callback/argument pairs. The new API functions have `_ex` 11451 postfixes and the older functions are reimplemented as wrappers for 11452 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11453 declarations of the old functions to help (graceful) attempts to 11454 migrate to the new functions. Also, the new key-generation API 11455 functions operate on a caller-supplied key-structure and return 11456 success/failure rather than returning a key or NULL - this is to 11457 help make "keygen" another member function of RSA_METHOD etc. 11458 11459 Example for using the new callback interface: 11460 11461 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11462 void *my_arg = ...; 11463 BN_GENCB my_cb; 11464 11465 BN_GENCB_set(&my_cb, my_callback, my_arg); 11466 11467 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11468 /* For the meaning of a, b in calls to my_callback(), see the 11469 * documentation of the function that calls the callback. 11470 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11471 * my_callback should return 1 if it wants BN_is_prime_ex() 11472 * to continue, or 0 to stop. 11473 */ 11474 11475 *Geoff Thorpe* 11476 11477 * Change the ZLIB compression method to be stateful, and make it 11478 available to TLS with the number defined in 11479 draft-ietf-tls-compression-04.txt. 11480 11481 *Richard Levitte* 11482 11483 * Add the ASN.1 structures and functions for CertificatePair, which 11484 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11485 11486 CertificatePair ::= SEQUENCE { 11487 forward [0] Certificate OPTIONAL, 11488 reverse [1] Certificate OPTIONAL, 11489 -- at least one of the pair shall be present -- } 11490 11491 Also implement the PEM functions to read and write certificate 11492 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11493 11494 This needed to be defined, mostly for the sake of the LDAP 11495 attribute crossCertificatePair, but may prove useful elsewhere as 11496 well. 11497 11498 *Richard Levitte* 11499 11500 * Make it possible to inhibit symlinking of shared libraries in 11501 Makefile.shared, for Cygwin's sake. 11502 11503 *Richard Levitte* 11504 11505 * Extend the BIGNUM API by creating a function 11506 void BN_set_negative(BIGNUM *a, int neg); 11507 and a macro that behave like 11508 int BN_is_negative(const BIGNUM *a); 11509 11510 to avoid the need to access 'a->neg' directly in applications. 11511 11512 *Nils Larsch* 11513 11514 * Implement fast modular reduction for pseudo-Mersenne primes 11515 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11516 EC_GROUP_new_curve_GFp() will now automatically use this 11517 if applicable. 11518 11519 *Nils Larsch <nla@trustcenter.de>* 11520 11521 * Add new lock type (CRYPTO_LOCK_BN). 11522 11523 *Bodo Moeller* 11524 11525 * Change the ENGINE framework to automatically load engines 11526 dynamically from specific directories unless they could be 11527 found to already be built in or loaded. Move all the 11528 current engines except for the cryptodev one to a new 11529 directory engines/. 11530 The engines in engines/ are built as shared libraries if 11531 the "shared" options was given to ./Configure or ./config. 11532 Otherwise, they are inserted in libcrypto.a. 11533 /usr/local/ssl/engines is the default directory for dynamic 11534 engines, but that can be overridden at configure time through 11535 the usual use of --prefix and/or --openssldir, and at run 11536 time with the environment variable OPENSSL_ENGINES. 11537 11538 *Geoff Thorpe and Richard Levitte* 11539 11540 * Add Makefile.shared, a helper makefile to build shared 11541 libraries. Adapt Makefile.org. 11542 11543 *Richard Levitte* 11544 11545 * Add version info to Win32 DLLs. 11546 11547 *Peter 'Luna' Runestig" <peter@runestig.com>* 11548 11549 * Add new 'medium level' PKCS#12 API. Certificates and keys 11550 can be added using this API to created arbitrary PKCS#12 11551 files while avoiding the low-level API. 11552 11553 New options to PKCS12_create(), key or cert can be NULL and 11554 will then be omitted from the output file. The encryption 11555 algorithm NIDs can be set to -1 for no encryption, the mac 11556 iteration count can be set to 0 to omit the mac. 11557 11558 Enhance pkcs12 utility by making the -nokeys and -nocerts 11559 options work when creating a PKCS#12 file. New option -nomac 11560 to omit the mac, NONE can be set for an encryption algorithm. 11561 New code is modified to use the enhanced PKCS12_create() 11562 instead of the low-level API. 11563 11564 *Steve Henson* 11565 11566 * Extend ASN1 encoder to support indefinite length constructed 11567 encoding. This can output sequences tags and octet strings in 11568 this form. Modify pk7_asn1.c to support indefinite length 11569 encoding. This is experimental and needs additional code to 11570 be useful, such as an ASN1 bio and some enhanced streaming 11571 PKCS#7 code. 11572 11573 Extend template encode functionality so that tagging is passed 11574 down to the template encoder. 11575 11576 *Steve Henson* 11577 11578 * Let 'openssl req' fail if an argument to '-newkey' is not 11579 recognized instead of using RSA as a default. 11580 11581 *Bodo Moeller* 11582 11583 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11584 As these are not official, they are not included in "ALL"; 11585 the "ECCdraft" ciphersuite group alias can be used to select them. 11586 11587 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11588 11589 * Add ECDH engine support. 11590 11591 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11592 11593 * Add ECDH in new directory crypto/ecdh/. 11594 11595 *Douglas Stebila (Sun Microsystems Laboratories)* 11596 11597 * Let BN_rand_range() abort with an error after 100 iterations 11598 without success (which indicates a broken PRNG). 11599 11600 *Bodo Moeller* 11601 11602 * Change BN_mod_sqrt() so that it verifies that the input value 11603 is really the square of the return value. (Previously, 11604 BN_mod_sqrt would show GIGO behaviour.) 11605 11606 *Bodo Moeller* 11607 11608 * Add named elliptic curves over binary fields from X9.62, SECG, 11609 and WAP/WTLS; add OIDs that were still missing. 11610 11611 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11612 11613 * Extend the EC library for elliptic curves over binary fields 11614 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11615 New EC_METHOD: 11616 11617 EC_GF2m_simple_method 11618 11619 New API functions: 11620 11621 EC_GROUP_new_curve_GF2m 11622 EC_GROUP_set_curve_GF2m 11623 EC_GROUP_get_curve_GF2m 11624 EC_POINT_set_affine_coordinates_GF2m 11625 EC_POINT_get_affine_coordinates_GF2m 11626 EC_POINT_set_compressed_coordinates_GF2m 11627 11628 Point compression for binary fields is disabled by default for 11629 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11630 enable it). 11631 11632 As binary polynomials are represented as BIGNUMs, various members 11633 of the EC_GROUP and EC_POINT data structures can be shared 11634 between the implementations for prime fields and binary fields; 11635 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11636 are essentially identical to their `..._GFp` counterparts. 11637 (For simplicity, the `..._GFp` prefix has been dropped from 11638 various internal method names.) 11639 11640 An internal 'field_div' method (similar to 'field_mul' and 11641 'field_sqr') has been added; this is used only for binary fields. 11642 11643 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11644 11645 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11646 through methods ('mul', 'precompute_mult'). 11647 11648 The generic implementations (now internally called 'ec_wNAF_mul' 11649 and 'ec_wNAF_precomputed_mult') remain the default if these 11650 methods are undefined. 11651 11652 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11653 11654 * New function EC_GROUP_get_degree, which is defined through 11655 EC_METHOD. For curves over prime fields, this returns the bit 11656 length of the modulus. 11657 11658 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11659 11660 * New functions EC_GROUP_dup, EC_POINT_dup. 11661 (These simply call ..._new and ..._copy). 11662 11663 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11664 11665 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11666 Polynomials are represented as BIGNUMs (where the sign bit is not 11667 used) in the following functions [macros]: 11668 11669 BN_GF2m_add 11670 BN_GF2m_sub [= BN_GF2m_add] 11671 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11672 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11673 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11674 BN_GF2m_mod_inv 11675 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11676 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11677 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11678 BN_GF2m_cmp [= BN_ucmp] 11679 11680 (Note that only the 'mod' functions are actually for fields GF(2^m). 11681 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11682 11683 For some functions, an the irreducible polynomial defining a 11684 field can be given as an 'unsigned int[]' with strictly 11685 decreasing elements giving the indices of those bits that are set; 11686 i.e., p[] represents the polynomial 11687 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11688 where 11689 p[0] > p[1] > ... > p[k] = 0. 11690 This applies to the following functions: 11691 11692 BN_GF2m_mod_arr 11693 BN_GF2m_mod_mul_arr 11694 BN_GF2m_mod_sqr_arr 11695 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11696 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11697 BN_GF2m_mod_exp_arr 11698 BN_GF2m_mod_sqrt_arr 11699 BN_GF2m_mod_solve_quad_arr 11700 BN_GF2m_poly2arr 11701 BN_GF2m_arr2poly 11702 11703 Conversion can be performed by the following functions: 11704 11705 BN_GF2m_poly2arr 11706 BN_GF2m_arr2poly 11707 11708 bntest.c has additional tests for binary polynomial arithmetic. 11709 11710 Two implementations for BN_GF2m_mod_div() are available. 11711 The default algorithm simply uses BN_GF2m_mod_inv() and 11712 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11713 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11714 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11715 11716 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11717 11718 * Add new error code 'ERR_R_DISABLED' that can be used when some 11719 functionality is disabled at compile-time. 11720 11721 *Douglas Stebila <douglas.stebila@sun.com>* 11722 11723 * Change default behaviour of 'openssl asn1parse' so that more 11724 information is visible when viewing, e.g., a certificate: 11725 11726 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11727 mode the content of non-printable OCTET STRINGs is output in a 11728 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11729 avoid the appearance of a printable string. 11730 11731 *Nils Larsch <nla@trustcenter.de>* 11732 11733 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11734 functions 11735 EC_GROUP_set_asn1_flag() 11736 EC_GROUP_get_asn1_flag() 11737 EC_GROUP_set_point_conversion_form() 11738 EC_GROUP_get_point_conversion_form() 11739 These control ASN1 encoding details: 11740 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11741 has been set to OPENSSL_EC_NAMED_CURVE. 11742 - Points are encoded in uncompressed form by default; options for 11743 asn1_for are as for point2oct, namely 11744 POINT_CONVERSION_COMPRESSED 11745 POINT_CONVERSION_UNCOMPRESSED 11746 POINT_CONVERSION_HYBRID 11747 11748 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11749 functions 11750 EC_GROUP_set_seed() 11751 EC_GROUP_get0_seed() 11752 EC_GROUP_get_seed_len() 11753 This is used only for ASN1 purposes (so far). 11754 11755 *Nils Larsch <nla@trustcenter.de>* 11756 11757 * Add 'field_type' member to EC_METHOD, which holds the NID 11758 of the appropriate field type OID. The new function 11759 EC_METHOD_get_field_type() returns this value. 11760 11761 *Nils Larsch <nla@trustcenter.de>* 11762 11763 * Add functions 11764 EC_POINT_point2bn() 11765 EC_POINT_bn2point() 11766 EC_POINT_point2hex() 11767 EC_POINT_hex2point() 11768 providing useful interfaces to EC_POINT_point2oct() and 11769 EC_POINT_oct2point(). 11770 11771 *Nils Larsch <nla@trustcenter.de>* 11772 11773 * Change internals of the EC library so that the functions 11774 EC_GROUP_set_generator() 11775 EC_GROUP_get_generator() 11776 EC_GROUP_get_order() 11777 EC_GROUP_get_cofactor() 11778 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11779 to methods, which would lead to unnecessary code duplication when 11780 adding different types of curves. 11781 11782 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11783 11784 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11785 arithmetic, and such that modified wNAFs are generated 11786 (which avoid length expansion in many cases). 11787 11788 *Bodo Moeller* 11789 11790 * Add a function EC_GROUP_check_discriminant() (defined via 11791 EC_METHOD) that verifies that the curve discriminant is non-zero. 11792 11793 Add a function EC_GROUP_check() that makes some sanity tests 11794 on a EC_GROUP, its generator and order. This includes 11795 EC_GROUP_check_discriminant(). 11796 11797 *Nils Larsch <nla@trustcenter.de>* 11798 11799 * Add ECDSA in new directory crypto/ecdsa/. 11800 11801 Add applications 'openssl ecparam' and 'openssl ecdsa' 11802 (these are based on 'openssl dsaparam' and 'openssl dsa'). 11803 11804 ECDSA support is also included in various other files across the 11805 library. Most notably, 11806 - 'openssl req' now has a '-newkey ecdsa:file' option; 11807 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 11808 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 11809 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 11810 them suitable for ECDSA where domain parameters must be 11811 extracted before the specific public key; 11812 - ECDSA engine support has been added. 11813 11814 *Nils Larsch <nla@trustcenter.de>* 11815 11816 * Include some named elliptic curves, and add OIDs from X9.62, 11817 SECG, and WAP/WTLS. Each curve can be obtained from the new 11818 function 11819 EC_GROUP_new_by_curve_name(), 11820 and the list of available named curves can be obtained with 11821 EC_get_builtin_curves(). 11822 Also add a 'curve_name' member to EC_GROUP objects, which can be 11823 accessed via 11824 EC_GROUP_set_curve_name() 11825 EC_GROUP_get_curve_name() 11826 11827 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 11828 11829 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 11830 was actually never needed) and in BN_mul(). The removal in BN_mul() 11831 required a small change in bn_mul_part_recursive() and the addition 11832 of the functions bn_cmp_part_words(), bn_sub_part_words() and 11833 bn_add_part_words(), which do the same thing as bn_cmp_words(), 11834 bn_sub_words() and bn_add_words() except they take arrays with 11835 differing sizes. 11836 11837 *Richard Levitte* 11838 11839### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 11840 11841 * Cleanse PEM buffers before freeing them since they may contain 11842 sensitive data. 11843 11844 *Benjamin Bennett <ben@psc.edu>* 11845 11846 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 11847 a ciphersuite string such as "DEFAULT:RSA" cannot enable 11848 authentication-only ciphersuites. 11849 11850 *Bodo Moeller* 11851 11852 * Since AES128 and AES256 share a single mask bit in the logic of 11853 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 11854 kludge to work properly if AES128 is available and AES256 isn't. 11855 11856 *Victor Duchovni* 11857 11858 * Expand security boundary to match 1.1.1 module. 11859 11860 *Steve Henson* 11861 11862 * Remove redundant features: hash file source, editing of test vectors 11863 modify fipsld to use external fips_premain.c signature. 11864 11865 *Steve Henson* 11866 11867 * New perl script mkfipsscr.pl to create shell scripts or batch files to 11868 run algorithm test programs. 11869 11870 *Steve Henson* 11871 11872 * Make algorithm test programs more tolerant of whitespace. 11873 11874 *Steve Henson* 11875 11876 * Have SSL/TLS server implementation tolerate "mismatched" record 11877 protocol version while receiving ClientHello even if the 11878 ClientHello is fragmented. (The server can't insist on the 11879 particular protocol version it has chosen before the ServerHello 11880 message has informed the client about his choice.) 11881 11882 *Bodo Moeller* 11883 11884 * Load error codes if they are not already present instead of using a 11885 static variable. This allows them to be cleanly unloaded and reloaded. 11886 11887 *Steve Henson* 11888 11889### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 11890 11891 * Introduce limits to prevent malicious keys being able to 11892 cause a denial of service. ([CVE-2006-2940]) 11893 11894 *Steve Henson, Bodo Moeller* 11895 11896 * Fix ASN.1 parsing of certain invalid structures that can result 11897 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 11898 11899 * Fix buffer overflow in SSL_get_shared_ciphers() function. 11900 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 11901 11902 * Fix SSL client code which could crash if connecting to a 11903 malicious SSLv2 server. ([CVE-2006-4343]) 11904 11905 *Tavis Ormandy and Will Drewry, Google Security Team* 11906 11907 * Change ciphersuite string processing so that an explicit 11908 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 11909 will no longer include "AES128-SHA"), and any other similar 11910 ciphersuite (same bitmap) from *other* protocol versions (so that 11911 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 11912 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 11913 changes from 0.9.8b and 0.9.8d. 11914 11915 *Bodo Moeller* 11916 11917### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 11918 11919 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 11920 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 11921 11922 * Change the Unix randomness entropy gathering to use poll() when 11923 possible instead of select(), since the latter has some 11924 undesirable limitations. 11925 11926 *Darryl Miles via Richard Levitte and Bodo Moeller* 11927 11928 * Disable rogue ciphersuites: 11929 11930 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11931 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11932 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11933 11934 The latter two were purportedly from 11935 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11936 appear there. 11937 11938 Also deactivate the remaining ciphersuites from 11939 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11940 unofficial, and the ID has long expired. 11941 11942 *Bodo Moeller* 11943 11944 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11945 dual-core machines) and other potential thread-safety issues. 11946 11947 *Bodo Moeller* 11948 11949### Changes between 0.9.7i and 0.9.7j [04 May 2006] 11950 11951 * Adapt fipsld and the build system to link against the validated FIPS 11952 module in FIPS mode. 11953 11954 *Steve Henson* 11955 11956 * Fixes for VC++ 2005 build under Windows. 11957 11958 *Steve Henson* 11959 11960 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 11961 from a Windows bash shell such as MSYS. It is autodetected from the 11962 "config" script when run from a VC++ environment. Modify standard VC++ 11963 build to use fipscanister.o from the GNU make build. 11964 11965 *Steve Henson* 11966 11967### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 11968 11969 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 11970 The value now differs depending on if you build for FIPS or not. 11971 BEWARE! A program linked with a shared FIPSed libcrypto can't be 11972 safely run with a non-FIPSed libcrypto, as it may crash because of 11973 the difference induced by this change. 11974 11975 *Andy Polyakov* 11976 11977### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 11978 11979 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11980 (part of SSL_OP_ALL). This option used to disable the 11981 countermeasure against man-in-the-middle protocol-version 11982 rollback in the SSL 2.0 server implementation, which is a bad 11983 idea. ([CVE-2005-2969]) 11984 11985 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11986 for Information Security, National Institute of Advanced Industrial 11987 Science and Technology [AIST, Japan)]* 11988 11989 * Minimal support for X9.31 signatures and PSS padding modes. This is 11990 mainly for FIPS compliance and not fully integrated at this stage. 11991 11992 *Steve Henson* 11993 11994 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 11995 the exponentiation using a fixed-length exponent. (Otherwise, 11996 the information leaked through timing could expose the secret key 11997 after many signatures; cf. Bleichenbacher's attack on DSA with 11998 biased k.) 11999 12000 *Bodo Moeller* 12001 12002 * Make a new fixed-window mod_exp implementation the default for 12003 RSA, DSA, and DH private-key operations so that the sequence of 12004 squares and multiplies and the memory access pattern are 12005 independent of the particular secret key. This will mitigate 12006 cache-timing and potential related attacks. 12007 12008 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 12009 and this is automatically used by BN_mod_exp_mont() if the new flag 12010 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 12011 will use this BN flag for private exponents unless the flag 12012 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 12013 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 12014 12015 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 12016 12017 * Change the client implementation for SSLv23_method() and 12018 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 12019 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 12020 (Previously, the SSL 2.0 backwards compatible Client Hello 12021 message format would be used even with SSL_OP_NO_SSLv2.) 12022 12023 *Bodo Moeller* 12024 12025 * Add support for smime-type MIME parameter in S/MIME messages which some 12026 clients need. 12027 12028 *Steve Henson* 12029 12030 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 12031 a threadsafe manner. Modify rsa code to use new function and add calls 12032 to dsa and dh code (which had race conditions before). 12033 12034 *Steve Henson* 12035 12036 * Include the fixed error library code in the C error file definitions 12037 instead of fixing them up at runtime. This keeps the error code 12038 structures constant. 12039 12040 *Steve Henson* 12041 12042### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 12043 12044[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 12045OpenSSL 0.9.8.] 12046 12047 * Fixes for newer kerberos headers. NB: the casts are needed because 12048 the 'length' field is signed on one version and unsigned on another 12049 with no (?) obvious way to tell the difference, without these VC++ 12050 complains. Also the "definition" of FAR (blank) is no longer included 12051 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 12052 some needed definitions. 12053 12054 *Steve Henson* 12055 12056 * Undo Cygwin change. 12057 12058 *Ulf Möller* 12059 12060 * Added support for proxy certificates according to RFC 3820. 12061 Because they may be a security thread to unaware applications, 12062 they must be explicitly allowed in run-time. See 12063 docs/HOWTO/proxy_certificates.txt for further information. 12064 12065 *Richard Levitte* 12066 12067### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 12068 12069 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 12070 server and client random values. Previously 12071 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 12072 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 12073 12074 This change has negligible security impact because: 12075 12076 1. Server and client random values still have 24 bytes of pseudo random 12077 data. 12078 12079 2. Server and client random values are sent in the clear in the initial 12080 handshake. 12081 12082 3. The master secret is derived using the premaster secret (48 bytes in 12083 size for static RSA ciphersuites) as well as client server and random 12084 values. 12085 12086 The OpenSSL team would like to thank the UK NISCC for bringing this issue 12087 to our attention. 12088 12089 *Stephen Henson, reported by UK NISCC* 12090 12091 * Use Windows randomness collection on Cygwin. 12092 12093 *Ulf Möller* 12094 12095 * Fix hang in EGD/PRNGD query when communication socket is closed 12096 prematurely by EGD/PRNGD. 12097 12098 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 12099 12100 * Prompt for pass phrases when appropriate for PKCS12 input format. 12101 12102 *Steve Henson* 12103 12104 * Back-port of selected performance improvements from development 12105 branch, as well as improved support for PowerPC platforms. 12106 12107 *Andy Polyakov* 12108 12109 * Add lots of checks for memory allocation failure, error codes to indicate 12110 failure and freeing up memory if a failure occurs. 12111 12112 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 12113 12114 * Add new -passin argument to dgst. 12115 12116 *Steve Henson* 12117 12118 * Perform some character comparisons of different types in X509_NAME_cmp: 12119 this is needed for some certificates that re-encode DNs into UTF8Strings 12120 (in violation of RFC3280) and can't or won't issue name rollover 12121 certificates. 12122 12123 *Steve Henson* 12124 12125 * Make an explicit check during certificate validation to see that 12126 the CA setting in each certificate on the chain is correct. As a 12127 side effect always do the following basic checks on extensions, 12128 not just when there's an associated purpose to the check: 12129 12130 - if there is an unhandled critical extension (unless the user 12131 has chosen to ignore this fault) 12132 - if the path length has been exceeded (if one is set at all) 12133 - that certain extensions fit the associated purpose (if one has 12134 been given) 12135 12136 *Richard Levitte* 12137 12138### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 12139 12140 * Avoid a race condition when CRLs are checked in a multi threaded 12141 environment. This would happen due to the reordering of the revoked 12142 entries during signature checking and serial number lookup. Now the 12143 encoding is cached and the serial number sort performed under a lock. 12144 Add new STACK function sk_is_sorted(). 12145 12146 *Steve Henson* 12147 12148 * Add Delta CRL to the extension code. 12149 12150 *Steve Henson* 12151 12152 * Various fixes to s3_pkt.c so alerts are sent properly. 12153 12154 *David Holmes <d.holmes@f5.com>* 12155 12156 * Reduce the chances of duplicate issuer name and serial numbers (in 12157 violation of RFC3280) using the OpenSSL certificate creation utilities. 12158 This is done by creating a random 64 bit value for the initial serial 12159 number when a serial number file is created or when a self signed 12160 certificate is created using 'openssl req -x509'. The initial serial 12161 number file is created using 'openssl x509 -next_serial' in CA.pl 12162 rather than being initialized to 1. 12163 12164 *Steve Henson* 12165 12166### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12167 12168 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12169 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12170 12171 *Joe Orton, Steve Henson* 12172 12173 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12174 ([CVE-2004-0112]) 12175 12176 *Joe Orton, Steve Henson* 12177 12178 * Make it possible to have multiple active certificates with the same 12179 subject in the CA index file. This is done only if the keyword 12180 'unique_subject' is set to 'no' in the main CA section (default 12181 if 'CA_default') of the configuration file. The value is saved 12182 with the database itself in a separate index attribute file, 12183 named like the index file with '.attr' appended to the name. 12184 12185 *Richard Levitte* 12186 12187 * X509 verify fixes. Disable broken certificate workarounds when 12188 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12189 keyUsage extension present. Don't accept CRLs with unhandled critical 12190 extensions: since verify currently doesn't process CRL extensions this 12191 rejects a CRL with *any* critical extensions. Add new verify error codes 12192 for these cases. 12193 12194 *Steve Henson* 12195 12196 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12197 A clarification of RFC2560 will require the use of OCTET STRINGs and 12198 some implementations cannot handle the current raw format. Since OpenSSL 12199 copies and compares OCSP nonces as opaque blobs without any attempt at 12200 parsing them this should not create any compatibility issues. 12201 12202 *Steve Henson* 12203 12204 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12205 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12206 this HMAC (and other) operations are several times slower than OpenSSL 12207 < 0.9.7. 12208 12209 *Steve Henson* 12210 12211 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12212 12213 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12214 12215 * Use the correct content when signing type "other". 12216 12217 *Steve Henson* 12218 12219### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12220 12221 * Fix various bugs revealed by running the NISCC test suite: 12222 12223 Stop out of bounds reads in the ASN1 code when presented with 12224 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12225 12226 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12227 12228 If verify callback ignores invalid public key errors don't try to check 12229 certificate signature with the NULL public key. 12230 12231 *Steve Henson* 12232 12233 * New -ignore_err option in ocsp application to stop the server 12234 exiting on the first error in a request. 12235 12236 *Steve Henson* 12237 12238 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12239 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12240 specifications. 12241 12242 *Steve Henson* 12243 12244 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12245 extra data after the compression methods not only for TLS 1.0 12246 but also for SSL 3.0 (as required by the specification). 12247 12248 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12249 12250 * Change X509_certificate_type() to mark the key as exported/exportable 12251 when it's 512 *bits* long, not 512 bytes. 12252 12253 *Richard Levitte* 12254 12255 * Change AES_cbc_encrypt() so it outputs exact multiple of 12256 blocks during encryption. 12257 12258 *Richard Levitte* 12259 12260 * Various fixes to base64 BIO and non blocking I/O. On write 12261 flushes were not handled properly if the BIO retried. On read 12262 data was not being buffered properly and had various logic bugs. 12263 This also affects blocking I/O when the data being decoded is a 12264 certain size. 12265 12266 *Steve Henson* 12267 12268 * Various S/MIME bugfixes and compatibility changes: 12269 output correct application/pkcs7 MIME type if 12270 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12271 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12272 of files as .eml work). Correctly handle very long lines in MIME 12273 parser. 12274 12275 *Steve Henson* 12276 12277### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12278 12279 * Countermeasure against the Klima-Pokorny-Rosa extension of 12280 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12281 a protocol version number mismatch like a decryption error 12282 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12283 12284 *Bodo Moeller* 12285 12286 * Turn on RSA blinding by default in the default implementation 12287 to avoid a timing attack. Applications that don't want it can call 12288 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12289 They would be ill-advised to do so in most cases. 12290 12291 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12292 12293 * Change RSA blinding code so that it works when the PRNG is not 12294 seeded (in this case, the secret RSA exponent is abused as 12295 an unpredictable seed -- if it is not unpredictable, there 12296 is no point in blinding anyway). Make RSA blinding thread-safe 12297 by remembering the creator's thread ID in rsa->blinding and 12298 having all other threads use local one-time blinding factors 12299 (this requires more computation than sharing rsa->blinding, but 12300 avoids excessive locking; and if an RSA object is not shared 12301 between threads, blinding will still be very fast). 12302 12303 *Bodo Moeller* 12304 12305 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12306 ENGINE as defaults for all supported algorithms irrespective of 12307 the 'flags' parameter. 'flags' is now honoured, so applications 12308 should make sure they are passing it correctly. 12309 12310 *Geoff Thorpe* 12311 12312 * Target "mingw" now allows native Windows code to be generated in 12313 the Cygwin environment as well as with the MinGW compiler. 12314 12315 *Ulf Moeller* 12316 12317### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12318 12319 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12320 via timing by performing a MAC computation even if incorrect 12321 block cipher padding has been found. This is a countermeasure 12322 against active attacks where the attacker has to distinguish 12323 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12324 12325 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12326 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12327 Martin Vuagnoux (EPFL, Ilion)* 12328 12329 * Make the no-err option work as intended. The intention with no-err 12330 is not to have the whole error stack handling routines removed from 12331 libcrypto, it's only intended to remove all the function name and 12332 reason texts, thereby removing some of the footprint that may not 12333 be interesting if those errors aren't displayed anyway. 12334 12335 NOTE: it's still possible for any application or module to have its 12336 own set of error texts inserted. The routines are there, just not 12337 used by default when no-err is given. 12338 12339 *Richard Levitte* 12340 12341 * Add support for FreeBSD on IA64. 12342 12343 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12344 12345 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12346 Kerberos function mit_des_cbc_cksum(). Before this change, 12347 the value returned by DES_cbc_cksum() was like the one from 12348 mit_des_cbc_cksum(), except the bytes were swapped. 12349 12350 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12351 12352 * Allow an application to disable the automatic SSL chain building. 12353 Before this a rather primitive chain build was always performed in 12354 ssl3_output_cert_chain(): an application had no way to send the 12355 correct chain if the automatic operation produced an incorrect result. 12356 12357 Now the chain builder is disabled if either: 12358 12359 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12360 12361 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12362 12363 The reasoning behind this is that an application would not want the 12364 auto chain building to take place if extra chain certificates are 12365 present and it might also want a means of sending no additional 12366 certificates (for example the chain has two certificates and the 12367 root is omitted). 12368 12369 *Steve Henson* 12370 12371 * Add the possibility to build without the ENGINE framework. 12372 12373 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12374 12375 * Under Win32 gmtime() can return NULL: check return value in 12376 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12377 12378 *Steve Henson* 12379 12380 * DSA routines: under certain error conditions uninitialized BN objects 12381 could be freed. Solution: make sure initialization is performed early 12382 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12383 Nils Larsch <nla@trustcenter.de> via PR#459) 12384 12385 *Lutz Jaenicke* 12386 12387 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12388 checked on reconnect on the client side, therefore session resumption 12389 could still fail with a "ssl session id is different" error. This 12390 behaviour is masked when SSL_OP_ALL is used due to 12391 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12392 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12393 followup to PR #377. 12394 12395 *Lutz Jaenicke* 12396 12397 * IA-32 assembler support enhancements: unified ELF targets, support 12398 for SCO/Caldera platforms, fix for Cygwin shared build. 12399 12400 *Andy Polyakov* 12401 12402 * Add support for FreeBSD on sparc64. As a consequence, support for 12403 FreeBSD on non-x86 processors is separate from x86 processors on 12404 the config script, much like the NetBSD support. 12405 12406 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12407 12408### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12409 12410[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12411OpenSSL 0.9.7.] 12412 12413 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12414 code (06) was taken as the first octet of the session ID and the last 12415 octet was ignored consequently. As a result SSLv2 client side session 12416 caching could not have worked due to the session ID mismatch between 12417 client and server. 12418 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12419 PR #377. 12420 12421 *Lutz Jaenicke* 12422 12423 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12424 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12425 removed entirely. 12426 12427 *Richard Levitte* 12428 12429 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12430 seems that in spite of existing for more than a year, many application 12431 author have done nothing to provide the necessary callbacks, which 12432 means that this particular engine will not work properly anywhere. 12433 This is a very unfortunate situation which forces us, in the name 12434 of usability, to give the hw_ncipher.c a static lock, which is part 12435 of libcrypto. 12436 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12437 appear in 0.9.8 or later. We EXPECT application authors to have 12438 dealt properly with this when 0.9.8 is released (unless we actually 12439 make such changes in the libcrypto locking code that changes will 12440 have to be made anyway). 12441 12442 *Richard Levitte* 12443 12444 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12445 octets have been read, EOF or an error occurs. Without this change 12446 some truncated ASN1 structures will not produce an error. 12447 12448 *Steve Henson* 12449 12450 * Disable Heimdal support, since it hasn't been fully implemented. 12451 Still give the possibility to force the use of Heimdal, but with 12452 warnings and a request that patches get sent to openssl-dev. 12453 12454 *Richard Levitte* 12455 12456 * Add the VC-CE target, introduce the WINCE sysname, and add 12457 INSTALL.WCE and appropriate conditionals to make it build. 12458 12459 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12460 12461 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12462 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12463 edit numbers of the version. 12464 12465 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12466 12467 * Introduce safe string copy and catenation functions 12468 (BUF_strlcpy() and BUF_strlcat()). 12469 12470 *Ben Laurie (CHATS) and Richard Levitte* 12471 12472 * Avoid using fixed-size buffers for one-line DNs. 12473 12474 *Ben Laurie (CHATS)* 12475 12476 * Add BUF_MEM_grow_clean() to avoid information leakage when 12477 resizing buffers containing secrets, and use where appropriate. 12478 12479 *Ben Laurie (CHATS)* 12480 12481 * Avoid using fixed size buffers for configuration file location. 12482 12483 *Ben Laurie (CHATS)* 12484 12485 * Avoid filename truncation for various CA files. 12486 12487 *Ben Laurie (CHATS)* 12488 12489 * Use sizeof in preference to magic numbers. 12490 12491 *Ben Laurie (CHATS)* 12492 12493 * Avoid filename truncation in cert requests. 12494 12495 *Ben Laurie (CHATS)* 12496 12497 * Add assertions to check for (supposedly impossible) buffer 12498 overflows. 12499 12500 *Ben Laurie (CHATS)* 12501 12502 * Don't cache truncated DNS entries in the local cache (this could 12503 potentially lead to a spoofing attack). 12504 12505 *Ben Laurie (CHATS)* 12506 12507 * Fix various buffers to be large enough for hex/decimal 12508 representations in a platform independent manner. 12509 12510 *Ben Laurie (CHATS)* 12511 12512 * Add CRYPTO_realloc_clean() to avoid information leakage when 12513 resizing buffers containing secrets, and use where appropriate. 12514 12515 *Ben Laurie (CHATS)* 12516 12517 * Add BIO_indent() to avoid much slightly worrying code to do 12518 indents. 12519 12520 *Ben Laurie (CHATS)* 12521 12522 * Convert sprintf()/BIO_puts() to BIO_printf(). 12523 12524 *Ben Laurie (CHATS)* 12525 12526 * buffer_gets() could terminate with the buffer only half 12527 full. Fixed. 12528 12529 *Ben Laurie (CHATS)* 12530 12531 * Add assertions to prevent user-supplied crypto functions from 12532 overflowing internal buffers by having large block sizes, etc. 12533 12534 *Ben Laurie (CHATS)* 12535 12536 * New OPENSSL_assert() macro (similar to assert(), but enabled 12537 unconditionally). 12538 12539 *Ben Laurie (CHATS)* 12540 12541 * Eliminate unused copy of key in RC4. 12542 12543 *Ben Laurie (CHATS)* 12544 12545 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12546 12547 *Ben Laurie (CHATS)* 12548 12549 * Fix off-by-one error in EGD path. 12550 12551 *Ben Laurie (CHATS)* 12552 12553 * If RANDFILE path is too long, ignore instead of truncating. 12554 12555 *Ben Laurie (CHATS)* 12556 12557 * Eliminate unused and incorrectly sized X.509 structure 12558 CBCParameter. 12559 12560 *Ben Laurie (CHATS)* 12561 12562 * Eliminate unused and dangerous function knumber(). 12563 12564 *Ben Laurie (CHATS)* 12565 12566 * Eliminate unused and dangerous structure, KSSL_ERR. 12567 12568 *Ben Laurie (CHATS)* 12569 12570 * Protect against overlong session ID context length in an encoded 12571 session object. Since these are local, this does not appear to be 12572 exploitable. 12573 12574 *Ben Laurie (CHATS)* 12575 12576 * Change from security patch (see 0.9.6e below) that did not affect 12577 the 0.9.6 release series: 12578 12579 Remote buffer overflow in SSL3 protocol - an attacker could 12580 supply an oversized master key in Kerberos-enabled versions. 12581 ([CVE-2002-0657]) 12582 12583 *Ben Laurie (CHATS)* 12584 12585 * Change the SSL kerb5 codes to match RFC 2712. 12586 12587 *Richard Levitte* 12588 12589 * Make -nameopt work fully for req and add -reqopt switch. 12590 12591 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12592 12593 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12594 12595 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12596 12597 * Make sure tests can be performed even if the corresponding algorithms 12598 have been removed entirely. This was also the last step to make 12599 OpenSSL compilable with DJGPP under all reasonable conditions. 12600 12601 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12602 12603 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12604 to allow version independent disabling of normally unselected ciphers, 12605 which may be activated as a side-effect of selecting a single cipher. 12606 12607 (E.g., cipher list string "RSA" enables ciphersuites that are left 12608 out of "ALL" because they do not provide symmetric encryption. 12609 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12610 12611 *Lutz Jaenicke, Bodo Moeller* 12612 12613 * Add appropriate support for separate platform-dependent build 12614 directories. The recommended way to make a platform-dependent 12615 build directory is the following (tested on Linux), maybe with 12616 some local tweaks: 12617 12618 # Place yourself outside of the OpenSSL source tree. In 12619 # this example, the environment variable OPENSSL_SOURCE 12620 # is assumed to contain the absolute OpenSSL source directory. 12621 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12622 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12623 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12624 mkdir -p `dirname $F` 12625 ln -s $OPENSSL_SOURCE/$F $F 12626 done 12627 12628 To be absolutely sure not to disturb the source tree, a "make clean" 12629 is a good thing. If it isn't successful, don't worry about it, 12630 it probably means the source directory is very clean. 12631 12632 *Richard Levitte* 12633 12634 * Make sure any ENGINE control commands make local copies of string 12635 pointers passed to them whenever necessary. Otherwise it is possible 12636 the caller may have overwritten (or deallocated) the original string 12637 data when a later ENGINE operation tries to use the stored values. 12638 12639 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12640 12641 * Improve diagnostics in file reading and command-line digests. 12642 12643 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12644 12645 * Add AES modes CFB and OFB to the object database. Correct an 12646 error in AES-CFB decryption. 12647 12648 *Richard Levitte* 12649 12650 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12651 allows existing EVP_CIPHER_CTX structures to be reused after 12652 calling `EVP_*Final()`. This behaviour is used by encryption 12653 BIOs and some applications. This has the side effect that 12654 applications must explicitly clean up cipher contexts with 12655 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12656 12657 *Steve Henson* 12658 12659 * Check the values of dna and dnb in bn_mul_recursive before calling 12660 bn_mul_comba (a non zero value means the a or b arrays do not contain 12661 n2 elements) and fallback to bn_mul_normal if either is not zero. 12662 12663 *Steve Henson* 12664 12665 * Fix escaping of non-ASCII characters when using the -subj option 12666 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12667 12668 *Lutz Jaenicke* 12669 12670 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12671 form for "surname", serialNumber has no short form. 12672 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12673 therefore remove "mail" short name for "internet 7". 12674 The OID for unique identifiers in X509 certificates is 12675 x500UniqueIdentifier, not uniqueIdentifier. 12676 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12677 12678 *Lutz Jaenicke* 12679 12680 * Add an "init" command to the ENGINE config module and auto initialize 12681 ENGINEs. Without any "init" command the ENGINE will be initialized 12682 after all ctrl commands have been executed on it. If init=1 the 12683 ENGINE is initialized at that point (ctrls before that point are run 12684 on the uninitialized ENGINE and after on the initialized one). If 12685 init=0 then the ENGINE will not be initialized at all. 12686 12687 *Steve Henson* 12688 12689 * Fix the 'app_verify_callback' interface so that the user-defined 12690 argument is actually passed to the callback: In the 12691 SSL_CTX_set_cert_verify_callback() prototype, the callback 12692 declaration has been changed from 12693 int (*cb)() 12694 into 12695 int (*cb)(X509_STORE_CTX *,void *); 12696 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12697 i=s->ctx->app_verify_callback(&ctx) 12698 has been changed into 12699 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12700 12701 To update applications using SSL_CTX_set_cert_verify_callback(), 12702 a dummy argument can be added to their callback functions. 12703 12704 *D. K. Smetters <smetters@parc.xerox.com>* 12705 12706 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12707 12708 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12709 12710 * Add and OPENSSL_LOAD_CONF define which will cause 12711 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12712 This allows older applications to transparently support certain 12713 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12714 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12715 load the config file and OPENSSL_add_all_algorithms_conf() which will 12716 always load it have also been added. 12717 12718 *Steve Henson* 12719 12720 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12721 Adjust NIDs and EVP layer. 12722 12723 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12724 12725 * Config modules support in openssl utility. 12726 12727 Most commands now load modules from the config file, 12728 though in a few (such as version) this isn't done 12729 because it couldn't be used for anything. 12730 12731 In the case of ca and req the config file used is 12732 the same as the utility itself: that is the -config 12733 command line option can be used to specify an 12734 alternative file. 12735 12736 *Steve Henson* 12737 12738 * Move default behaviour from OPENSSL_config(). If appname is NULL 12739 use "openssl_conf" if filename is NULL use default openssl config file. 12740 12741 *Steve Henson* 12742 12743 * Add an argument to OPENSSL_config() to allow the use of an alternative 12744 config section name. Add a new flag to tolerate a missing config file 12745 and move code to CONF_modules_load_file(). 12746 12747 *Steve Henson* 12748 12749 * Support for crypto accelerator cards from Accelerated Encryption 12750 Processing, www.aep.ie. (Use engine 'aep') 12751 The support was copied from 0.9.6c [engine] and adapted/corrected 12752 to work with the new engine framework. 12753 12754 *AEP Inc. and Richard Levitte* 12755 12756 * Support for SureWare crypto accelerator cards from Baltimore 12757 Technologies. (Use engine 'sureware') 12758 The support was copied from 0.9.6c [engine] and adapted 12759 to work with the new engine framework. 12760 12761 *Richard Levitte* 12762 12763 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12764 make the newer ENGINE framework commands for the CHIL engine work. 12765 12766 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12767 12768 * Make it possible to produce shared libraries on ReliantUNIX. 12769 12770 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12771 12772 * Add the configuration target debug-linux-ppro. 12773 Make 'openssl rsa' use the general key loading routines 12774 implemented in `apps.c`, and make those routines able to 12775 handle the key format FORMAT_NETSCAPE and the variant 12776 FORMAT_IISSGC. 12777 12778 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12779 12780 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12781 12782 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12783 12784 * Add -keyform to rsautl, and document -engine. 12785 12786 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 12787 12788 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 12789 BIO_R_NO_SUCH_FILE error code rather than the generic 12790 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 12791 12792 *Ben Laurie* 12793 12794 * Add new functions 12795 ERR_peek_last_error 12796 ERR_peek_last_error_line 12797 ERR_peek_last_error_line_data. 12798 These are similar to 12799 ERR_peek_error 12800 ERR_peek_error_line 12801 ERR_peek_error_line_data, 12802 but report on the latest error recorded rather than the first one 12803 still in the error queue. 12804 12805 *Ben Laurie, Bodo Moeller* 12806 12807 * default_algorithms option in ENGINE config module. This allows things 12808 like: 12809 default_algorithms = ALL 12810 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 12811 12812 *Steve Henson* 12813 12814 * Preliminary ENGINE config module. 12815 12816 *Steve Henson* 12817 12818 * New experimental application configuration code. 12819 12820 *Steve Henson* 12821 12822 * Change the AES code to follow the same name structure as all other 12823 symmetric ciphers, and behave the same way. Move everything to 12824 the directory crypto/aes, thereby obsoleting crypto/rijndael. 12825 12826 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12827 12828 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 12829 12830 *Ben Laurie and Theo de Raadt* 12831 12832 * Add option to output public keys in req command. 12833 12834 *Massimiliano Pala madwolf@openca.org* 12835 12836 * Use wNAFs in EC_POINTs_mul() for improved efficiency 12837 (up to about 10% better than before for P-192 and P-224). 12838 12839 *Bodo Moeller* 12840 12841 * New functions/macros 12842 12843 SSL_CTX_set_msg_callback(ctx, cb) 12844 SSL_CTX_set_msg_callback_arg(ctx, arg) 12845 SSL_set_msg_callback(ssl, cb) 12846 SSL_set_msg_callback_arg(ssl, arg) 12847 12848 to request calling a callback function 12849 12850 void cb(int write_p, int version, int content_type, 12851 const void *buf, size_t len, SSL *ssl, void *arg) 12852 12853 whenever a protocol message has been completely received 12854 (write_p == 0) or sent (write_p == 1). Here 'version' is the 12855 protocol version according to which the SSL library interprets 12856 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 12857 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 12858 the content type as defined in the SSL 3.0/TLS 1.0 protocol 12859 specification (change_cipher_spec(20), alert(21), handshake(22)). 12860 'buf' and 'len' point to the actual message, 'ssl' to the 12861 SSL object, and 'arg' is the application-defined value set by 12862 SSL[_CTX]_set_msg_callback_arg(). 12863 12864 'openssl s_client' and 'openssl s_server' have new '-msg' options 12865 to enable a callback that displays all protocol messages. 12866 12867 *Bodo Moeller* 12868 12869 * Change the shared library support so shared libraries are built as 12870 soon as the corresponding static library is finished, and thereby get 12871 openssl and the test programs linked against the shared library. 12872 This still only happens when the keyword "shard" has been given to 12873 the configuration scripts. 12874 12875 NOTE: shared library support is still an experimental thing, and 12876 backward binary compatibility is still not guaranteed. 12877 12878 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 12879 12880 * Add support for Subject Information Access extension. 12881 12882 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12883 12884 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 12885 additional bytes when new memory had to be allocated, not just 12886 when reusing an existing buffer. 12887 12888 *Bodo Moeller* 12889 12890 * New command line and configuration option 'utf8' for the req command. 12891 This allows field values to be specified as UTF8 strings. 12892 12893 *Steve Henson* 12894 12895 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 12896 runs for the former and machine-readable output for the latter. 12897 12898 *Ben Laurie* 12899 12900 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 12901 of the e-mail address in the DN (i.e., it will go into a certificate 12902 extension only). The new configuration file option 'email_in_dn = no' 12903 has the same effect. 12904 12905 *Massimiliano Pala madwolf@openca.org* 12906 12907 * Change all functions with names starting with `des_` to be starting 12908 with `DES_` instead. Add wrappers that are compatible with libdes, 12909 but are named `_ossl_old_des_*`. Finally, add macros that map the 12910 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 12911 compatibility is desired. If OpenSSL 0.9.6c compatibility is 12912 desired, the `des_*` symbols will be mapped to `DES_*`, with one 12913 exception. 12914 12915 Since we provide two compatibility mappings, the user needs to 12916 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 12917 compatibility is desired. The default (i.e., when that macro 12918 isn't defined) is OpenSSL 0.9.6c compatibility. 12919 12920 There are also macros that enable and disable the support of old 12921 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 12922 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 12923 are defined, the default will apply: to support the old des routines. 12924 12925 In either case, one must include openssl/des.h to get the correct 12926 definitions. Do not try to just include openssl/des_old.h, that 12927 won't work. 12928 12929 NOTE: This is a major break of an old API into a new one. Software 12930 authors are encouraged to switch to the `DES_` style functions. Some 12931 time in the future, des_old.h and the libdes compatibility functions 12932 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 12933 default), and then completely removed. 12934 12935 *Richard Levitte* 12936 12937 * Test for certificates which contain unsupported critical extensions. 12938 If such a certificate is found during a verify operation it is 12939 rejected by default: this behaviour can be overridden by either 12940 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 12941 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 12942 X509_supported_extension() has also been added which returns 1 if a 12943 particular extension is supported. 12944 12945 *Steve Henson* 12946 12947 * Modify the behaviour of EVP cipher functions in similar way to digests 12948 to retain compatibility with existing code. 12949 12950 *Steve Henson* 12951 12952 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 12953 compatibility with existing code. In particular the 'ctx' parameter does 12954 not have to be to be initialized before the call to EVP_DigestInit() and 12955 it is tidied up after a call to EVP_DigestFinal(). New function 12956 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 12957 EVP_MD_CTX_copy() changed to not require the destination to be 12958 initialized valid and new function EVP_MD_CTX_copy_ex() added which 12959 requires the destination to be valid. 12960 12961 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 12962 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 12963 12964 *Steve Henson* 12965 12966 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 12967 so that complete 'Handshake' protocol structures are kept in memory 12968 instead of overwriting 'msg_type' and 'length' with 'body' data. 12969 12970 *Bodo Moeller* 12971 12972 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 12973 12974 *Massimo Santin via Richard Levitte* 12975 12976 * Major restructuring to the underlying ENGINE code. This includes 12977 reduction of linker bloat, separation of pure "ENGINE" manipulation 12978 (initialisation, etc) from functionality dealing with implementations 12979 of specific crypto interfaces. This change also introduces integrated 12980 support for symmetric ciphers and digest implementations - so ENGINEs 12981 can now accelerate these by providing EVP_CIPHER and EVP_MD 12982 implementations of their own. This is detailed in 12983 [crypto/engine/README.md](crypto/engine/README.md) 12984 as it couldn't be adequately described here. However, there are a few 12985 API changes worth noting - some RSA, DSA, DH, and RAND functions that 12986 were changed in the original introduction of ENGINE code have now 12987 reverted back - the hooking from this code to ENGINE is now a good 12988 deal more passive and at run-time, operations deal directly with 12989 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 12990 dereferencing through an ENGINE pointer any more. Also, the ENGINE 12991 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 12992 they were not being used by the framework as there is no concept of a 12993 BIGNUM_METHOD and they could not be generalised to the new 12994 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 12995 ENGINE_cpy() has been removed as it cannot be consistently defined in 12996 the new code. 12997 12998 *Geoff Thorpe* 12999 13000 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 13001 13002 *Steve Henson* 13003 13004 * Change mkdef.pl to sort symbols that get the same entry number, 13005 and make sure the automatically generated functions `ERR_load_*` 13006 become part of libeay.num as well. 13007 13008 *Richard Levitte* 13009 13010 * New function SSL_renegotiate_pending(). This returns true once 13011 renegotiation has been requested (either SSL_renegotiate() call 13012 or HelloRequest/ClientHello received from the peer) and becomes 13013 false once a handshake has been completed. 13014 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 13015 sends a HelloRequest, but does not ensure that a handshake takes 13016 place. SSL_renegotiate_pending() is useful for checking if the 13017 client has followed the request.) 13018 13019 *Bodo Moeller* 13020 13021 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 13022 By default, clients may request session resumption even during 13023 renegotiation (if session ID contexts permit); with this option, 13024 session resumption is possible only in the first handshake. 13025 13026 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 13027 more bits available for options that should not be part of 13028 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 13029 13030 *Bodo Moeller* 13031 13032 * Add some demos for certificate and certificate request creation. 13033 13034 *Steve Henson* 13035 13036 * Make maximum certificate chain size accepted from the peer application 13037 settable (`SSL*_get/set_max_cert_list()`), as proposed by 13038 "Douglas E. Engert" <deengert@anl.gov>. 13039 13040 *Lutz Jaenicke* 13041 13042 * Add support for shared libraries for Unixware-7 13043 (Boyd Lynn Gerber <gerberb@zenez.com>). 13044 13045 *Lutz Jaenicke* 13046 13047 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 13048 be done prior to destruction. Use this to unload error strings from 13049 ENGINEs that load their own error strings. NB: This adds two new API 13050 functions to "get" and "set" this destroy handler in an ENGINE. 13051 13052 *Geoff Thorpe* 13053 13054 * Alter all existing ENGINE implementations (except "openssl" and 13055 "openbsd") to dynamically instantiate their own error strings. This 13056 makes them more flexible to be built both as statically-linked ENGINEs 13057 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 13058 Also, add stub code to each that makes building them as self-contained 13059 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 13060 13061 *Geoff Thorpe* 13062 13063 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 13064 implementations into applications that are completely implemented in 13065 self-contained shared-libraries. The "dynamic" ENGINE exposes control 13066 commands that can be used to configure what shared-library to load and 13067 to control aspects of the way it is handled. Also, made an update to 13068 the [README-Engine.md](README-Engine.md) file 13069 that brings its information up-to-date and 13070 provides some information and instructions on the "dynamic" ENGINE 13071 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 13072 13073 *Geoff Thorpe* 13074 13075 * Make it possible to unload ranges of ERR strings with a new 13076 "ERR_unload_strings" function. 13077 13078 *Geoff Thorpe* 13079 13080 * Add a copy() function to EVP_MD. 13081 13082 *Ben Laurie* 13083 13084 * Make EVP_MD routines take a context pointer instead of just the 13085 md_data void pointer. 13086 13087 *Ben Laurie* 13088 13089 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 13090 that the digest can only process a single chunk of data 13091 (typically because it is provided by a piece of 13092 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 13093 is only going to provide a single chunk of data, and hence the 13094 framework needn't accumulate the data for oneshot drivers. 13095 13096 *Ben Laurie* 13097 13098 * As with "ERR", make it possible to replace the underlying "ex_data" 13099 functions. This change also alters the storage and management of global 13100 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 13101 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 13102 index counters. The API functions that use this state have been changed 13103 to take a "class_index" rather than pointers to the class's local STACK 13104 and counter, and there is now an API function to dynamically create new 13105 classes. This centralisation allows us to (a) plug a lot of the 13106 thread-safety problems that existed, and (b) makes it possible to clean 13107 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 13108 such data would previously have always leaked in application code and 13109 workarounds were in place to make the memory debugging turn a blind eye 13110 to it. Application code that doesn't use this new function will still 13111 leak as before, but their memory debugging output will announce it now 13112 rather than letting it slide. 13113 13114 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 13115 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 13116 has a return value to indicate success or failure. 13117 13118 *Geoff Thorpe* 13119 13120 * Make it possible to replace the underlying "ERR" functions such that the 13121 global state (2 LHASH tables and 2 locks) is only used by the "default" 13122 implementation. This change also adds two functions to "get" and "set" 13123 the implementation prior to it being automatically set the first time 13124 any other ERR function takes place. Ie. an application can call "get", 13125 pass the return value to a module it has just loaded, and that module 13126 can call its own "set" function using that value. This means the 13127 module's "ERR" operations will use (and modify) the error state in the 13128 application and not in its own statically linked copy of OpenSSL code. 13129 13130 *Geoff Thorpe* 13131 13132 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 13133 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 13134 the operation, and provides a more encapsulated way for external code 13135 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 13136 to use these functions rather than manually incrementing the counts. 13137 13138 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 13139 13140 *Geoff Thorpe* 13141 13142 * Add EVP test program. 13143 13144 *Ben Laurie* 13145 13146 * Add symmetric cipher support to ENGINE. Expect the API to change! 13147 13148 *Ben Laurie* 13149 13150 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 13151 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 13152 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 13153 These allow a CRL to be built without having to access X509_CRL fields 13154 directly. Modify 'ca' application to use new functions. 13155 13156 *Steve Henson* 13157 13158 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 13159 bug workarounds. Rollback attack detection is a security feature. 13160 The problem will only arise on OpenSSL servers when TLSv1 is not 13161 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13162 Software authors not wanting to support TLSv1 will have special reasons 13163 for their choice and can explicitly enable this option. 13164 13165 *Bodo Moeller, Lutz Jaenicke* 13166 13167 * Rationalise EVP so it can be extended: don't include a union of 13168 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13169 (similar to those existing for EVP_CIPHER_CTX). 13170 Usage example: 13171 13172 EVP_MD_CTX md; 13173 13174 EVP_MD_CTX_init(&md); /* new function call */ 13175 EVP_DigestInit(&md, EVP_sha1()); 13176 EVP_DigestUpdate(&md, in, len); 13177 EVP_DigestFinal(&md, out, NULL); 13178 EVP_MD_CTX_cleanup(&md); /* new function call */ 13179 13180 *Ben Laurie* 13181 13182 * Make DES key schedule conform to the usual scheme, as well as 13183 correcting its structure. This means that calls to DES functions 13184 now have to pass a pointer to a des_key_schedule instead of a 13185 plain des_key_schedule (which was actually always a pointer 13186 anyway): E.g., 13187 13188 des_key_schedule ks; 13189 13190 des_set_key_checked(..., &ks); 13191 des_ncbc_encrypt(..., &ks, ...); 13192 13193 (Note that a later change renames 'des_...' into 'DES_...'.) 13194 13195 *Ben Laurie* 13196 13197 * Initial reduction of linker bloat: the use of some functions, such as 13198 PEM causes large amounts of unused functions to be linked in due to 13199 poor organisation. For example pem_all.c contains every PEM function 13200 which has a knock on effect of linking in large amounts of (unused) 13201 ASN1 code. Grouping together similar functions and splitting unrelated 13202 functions prevents this. 13203 13204 *Steve Henson* 13205 13206 * Cleanup of EVP macros. 13207 13208 *Ben Laurie* 13209 13210 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13211 correct `_ecb suffix`. 13212 13213 *Ben Laurie* 13214 13215 * Add initial OCSP responder support to ocsp application. The 13216 revocation information is handled using the text based index 13217 use by the ca application. The responder can either handle 13218 requests generated internally, supplied in files (for example 13219 via a CGI script) or using an internal minimal server. 13220 13221 *Steve Henson* 13222 13223 * Add configuration choices to get zlib compression for TLS. 13224 13225 *Richard Levitte* 13226 13227 * Changes to Kerberos SSL for RFC 2712 compliance: 13228 1. Implemented real KerberosWrapper, instead of just using 13229 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13230 2. Implemented optional authenticator field of KerberosWrapper. 13231 13232 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13233 and authenticator structs; see crypto/krb5/. 13234 13235 Generalized Kerberos calls to support multiple Kerberos libraries. 13236 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13237 via Richard Levitte* 13238 13239 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13240 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13241 values for each of the key sizes rather than having just 13242 parameters (and 'speed' generating keys each time). 13243 13244 *Geoff Thorpe* 13245 13246 * Speed up EVP routines. 13247 Before: 13248crypt 13249pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13250s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13251s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13252s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13253crypt 13254s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13255s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13256s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13257 After: 13258crypt 13259s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13260crypt 13261s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13262 13263 *Ben Laurie* 13264 13265 * Added the OS2-EMX target. 13266 13267 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13268 13269 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13270 New functions to support `NCONF` routines in extension code. 13271 New function `CONF_set_nconf()` 13272 to allow functions which take an `NCONF` to also handle the old `LHASH` 13273 structure: this means that the old `CONF` compatible routines can be 13274 retained (in particular w.rt. extensions) without having to duplicate the 13275 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13276 13277 *Steve Henson* 13278 13279 * Enhance the general user interface with mechanisms for inner control 13280 and with possibilities to have yes/no kind of prompts. 13281 13282 *Richard Levitte* 13283 13284 * Change all calls to low-level digest routines in the library and 13285 applications to use EVP. Add missing calls to HMAC_cleanup() and 13286 don't assume HMAC_CTX can be copied using memcpy(). 13287 13288 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13289 13290 * Add the possibility to control engines through control names but with 13291 arbitrary arguments instead of just a string. 13292 Change the key loaders to take a UI_METHOD instead of a callback 13293 function pointer. NOTE: this breaks binary compatibility with earlier 13294 versions of OpenSSL [engine]. 13295 Adapt the nCipher code for these new conditions and add a card insertion 13296 callback. 13297 13298 *Richard Levitte* 13299 13300 * Enhance the general user interface with mechanisms to better support 13301 dialog box interfaces, application-defined prompts, the possibility 13302 to use defaults (for example default passwords from somewhere else) 13303 and interrupts/cancellations. 13304 13305 *Richard Levitte* 13306 13307 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13308 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13309 13310 *Steve Henson* 13311 13312 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13313 tidy up some unnecessarily weird code in 'sk_new()'). 13314 13315 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13316 13317 * Change the key loading routines for ENGINEs to use the same kind 13318 callback (pem_password_cb) as all other routines that need this 13319 kind of callback. 13320 13321 *Richard Levitte* 13322 13323 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13324 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13325 than this minimum value is recommended. 13326 13327 *Lutz Jaenicke* 13328 13329 * New random seeder for OpenVMS, using the system process statistics 13330 that are easily reachable. 13331 13332 *Richard Levitte* 13333 13334 * Windows apparently can't transparently handle global 13335 variables defined in DLLs. Initialisations such as: 13336 13337 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13338 13339 won't compile. This is used by the any applications that need to 13340 declare their own ASN1 modules. This was fixed by adding the option 13341 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13342 needed for static libraries under Win32. 13343 13344 *Steve Henson* 13345 13346 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13347 setting of purpose and trust fields. New X509_STORE trust and 13348 purpose functions and tidy up setting in other SSL functions. 13349 13350 *Steve Henson* 13351 13352 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13353 structure. These are inherited by X509_STORE_CTX when it is 13354 initialised. This allows various defaults to be set in the 13355 X509_STORE structure (such as flags for CRL checking and custom 13356 purpose or trust settings) for functions which only use X509_STORE_CTX 13357 internally such as S/MIME. 13358 13359 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13360 trust settings if they are not set in X509_STORE. This allows X509_STORE 13361 purposes and trust (in S/MIME for example) to override any set by default. 13362 13363 Add command line options for CRL checking to smime, s_client and s_server 13364 applications. 13365 13366 *Steve Henson* 13367 13368 * Initial CRL based revocation checking. If the CRL checking flag(s) 13369 are set then the CRL is looked up in the X509_STORE structure and 13370 its validity and signature checked, then if the certificate is found 13371 in the CRL the verify fails with a revoked error. 13372 13373 Various new CRL related callbacks added to X509_STORE_CTX structure. 13374 13375 Command line options added to 'verify' application to support this. 13376 13377 This needs some additional work, such as being able to handle multiple 13378 CRLs with different times, extension based lookup (rather than just 13379 by subject name) and ultimately more complete V2 CRL extension 13380 handling. 13381 13382 *Steve Henson* 13383 13384 * Add a general user interface API (crypto/ui/). This is designed 13385 to replace things like des_read_password and friends (backward 13386 compatibility functions using this new API are provided). 13387 The purpose is to remove prompting functions from the DES code 13388 section as well as provide for prompting through dialog boxes in 13389 a window system and the like. 13390 13391 *Richard Levitte* 13392 13393 * Add "ex_data" support to ENGINE so implementations can add state at a 13394 per-structure level rather than having to store it globally. 13395 13396 *Geoff* 13397 13398 * Make it possible for ENGINE structures to be copied when retrieved by 13399 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13400 This causes the "original" ENGINE structure to act like a template, 13401 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13402 operational state can be localised to each ENGINE structure, despite the 13403 fact they all share the same "methods". New ENGINE structures returned in 13404 this case have no functional references and the return value is the single 13405 structural reference. This matches the single structural reference returned 13406 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13407 ENGINE structure. 13408 13409 *Geoff* 13410 13411 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13412 needs to match any other type at all we need to manually clear the 13413 tag cache. 13414 13415 *Steve Henson* 13416 13417 * Changes to the "openssl engine" utility to include; 13418 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13419 about an ENGINE's available control commands. 13420 - executing control commands from command line arguments using the 13421 '-pre' and '-post' switches. '-post' is only used if '-t' is 13422 specified and the ENGINE is successfully initialised. The syntax for 13423 the individual commands are colon-separated, for example; 13424 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13425 13426 *Geoff* 13427 13428 * New dynamic control command support for ENGINEs. ENGINEs can now 13429 declare their own commands (numbers), names (strings), descriptions, 13430 and input types for run-time discovery by calling applications. A 13431 subset of these commands are implicitly classed as "executable" 13432 depending on their input type, and only these can be invoked through 13433 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13434 can be based on user input, config files, etc). The distinction is 13435 that "executable" commands cannot return anything other than a boolean 13436 result and can only support numeric or string input, whereas some 13437 discoverable commands may only be for direct use through 13438 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13439 pointers, or other custom uses. The "executable" commands are to 13440 support parameterisations of ENGINE behaviour that can be 13441 unambiguously defined by ENGINEs and used consistently across any 13442 OpenSSL-based application. Commands have been added to all the 13443 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13444 control over shared-library paths without source code alterations. 13445 13446 *Geoff* 13447 13448 * Changed all ENGINE implementations to dynamically allocate their 13449 ENGINEs rather than declaring them statically. Apart from this being 13450 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13451 this also allows the implementations to compile without using the 13452 internal engine_int.h header. 13453 13454 *Geoff* 13455 13456 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13457 'const' value. Any code that should be able to modify a RAND_METHOD 13458 should already have non-const pointers to it (ie. they should only 13459 modify their own ones). 13460 13461 *Geoff* 13462 13463 * Made a variety of little tweaks to the ENGINE code. 13464 - "atalla" and "ubsec" string definitions were moved from header files 13465 to C code. "nuron" string definitions were placed in variables 13466 rather than hard-coded - allowing parameterisation of these values 13467 later on via ctrl() commands. 13468 - Removed unused "#if 0"'d code. 13469 - Fixed engine list iteration code so it uses ENGINE_free() to release 13470 structural references. 13471 - Constified the RAND_METHOD element of ENGINE structures. 13472 - Constified various get/set functions as appropriate and added 13473 missing functions (including a catch-all ENGINE_cpy that duplicates 13474 all ENGINE values onto a new ENGINE except reference counts/state). 13475 - Removed NULL parameter checks in get/set functions. Setting a method 13476 or function to NULL is a way of cancelling out a previously set 13477 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13478 and doesn't justify the extra error symbols and code. 13479 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13480 flags from engine_int.h to engine.h. 13481 - Changed prototypes for ENGINE handler functions (init(), finish(), 13482 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13483 13484 *Geoff* 13485 13486 * Implement binary inversion algorithm for BN_mod_inverse in addition 13487 to the algorithm using long division. The binary algorithm can be 13488 used only if the modulus is odd. On 32-bit systems, it is faster 13489 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13490 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13491 up to 450 bits. In 64-bit environments, the binary algorithm 13492 appears to be advantageous for much longer moduli; here we use it 13493 for moduli up to 2048 bits. 13494 13495 *Bodo Moeller* 13496 13497 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13498 could not support the combine flag in choice fields. 13499 13500 *Steve Henson* 13501 13502 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13503 extensions from a certificate request to the certificate. 13504 13505 *Steve Henson* 13506 13507 * Allow multiple 'certopt' and 'nameopt' options to be separated 13508 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13509 file: this allows the display of the certificate about to be 13510 signed to be customised, to allow certain fields to be included 13511 or excluded and extension details. The old system didn't display 13512 multicharacter strings properly, omitted fields not in the policy 13513 and couldn't display additional details such as extensions. 13514 13515 *Steve Henson* 13516 13517 * Function EC_POINTs_mul for multiple scalar multiplication 13518 of an arbitrary number of elliptic curve points 13519 \sum scalars[i]*points[i], 13520 optionally including the generator defined for the EC_GROUP: 13521 scalar*generator + \sum scalars[i]*points[i]. 13522 13523 EC_POINT_mul is a simple wrapper function for the typical case 13524 that the point list has just one item (besides the optional 13525 generator). 13526 13527 *Bodo Moeller* 13528 13529 * First EC_METHODs for curves over GF(p): 13530 13531 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13532 operations and provides various method functions that can also 13533 operate with faster implementations of modular arithmetic. 13534 13535 EC_GFp_mont_method() reuses most functions that are part of 13536 EC_GFp_simple_method, but uses Montgomery arithmetic. 13537 13538 *Bodo Moeller; point addition and point doubling 13539 implementation directly derived from source code provided by 13540 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13541 13542 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13543 crypto/ec/ec_lib.c): 13544 13545 Curves are EC_GROUP objects (with an optional group generator) 13546 based on EC_METHODs that are built into the library. 13547 13548 Points are EC_POINT objects based on EC_GROUP objects. 13549 13550 Most of the framework would be able to handle curves over arbitrary 13551 finite fields, but as there are no obvious types for fields other 13552 than GF(p), some functions are limited to that for now. 13553 13554 *Bodo Moeller* 13555 13556 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13557 that the file contains a complete HTTP response. 13558 13559 *Richard Levitte* 13560 13561 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13562 change the def and num file printf format specifier from "%-40sXXX" 13563 to "%-39s XXX". The latter will always guarantee a space after the 13564 field while the former will cause them to run together if the field 13565 is 40 of more characters long. 13566 13567 *Steve Henson* 13568 13569 * Constify the cipher and digest 'method' functions and structures 13570 and modify related functions to take constant EVP_MD and EVP_CIPHER 13571 pointers. 13572 13573 *Steve Henson* 13574 13575 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13576 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13577 13578 *Bodo Moeller* 13579 13580 * Modify `EVP_Digest*()` routines so they now return values. Although the 13581 internal software routines can never fail additional hardware versions 13582 might. 13583 13584 *Steve Henson* 13585 13586 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13587 13588 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13589 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13590 13591 ASN1 error codes 13592 ERR_R_NESTED_ASN1_ERROR 13593 ... 13594 ERR_R_MISSING_ASN1_EOS 13595 were 4 .. 9, conflicting with 13596 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13597 ... 13598 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13599 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13600 13601 Add new error code 'ERR_R_INTERNAL_ERROR'. 13602 13603 *Bodo Moeller* 13604 13605 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13606 suffices. 13607 13608 *Bodo Moeller* 13609 13610 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13611 sets the subject name for a new request or supersedes the 13612 subject name in a given request. Formats that can be parsed are 13613 'CN=Some Name, OU=myOU, C=IT' 13614 and 13615 'CN=Some Name/OU=myOU/C=IT'. 13616 13617 Add options '-batch' and '-verbose' to 'openssl req'. 13618 13619 *Massimiliano Pala <madwolf@hackmasters.net>* 13620 13621 * Introduce the possibility to access global variables through 13622 functions on platform were that's the best way to handle exporting 13623 global variables in shared libraries. To enable this functionality, 13624 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13625 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13626 is normally done by Configure or something similar). 13627 13628 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13629 in the source file (foo.c) like this: 13630 13631 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13632 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13633 13634 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13635 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13636 13637 OPENSSL_DECLARE_GLOBAL(int,foo); 13638 #define foo OPENSSL_GLOBAL_REF(foo) 13639 OPENSSL_DECLARE_GLOBAL(double,bar); 13640 #define bar OPENSSL_GLOBAL_REF(bar) 13641 13642 The #defines are very important, and therefore so is including the 13643 header file everywhere where the defined globals are used. 13644 13645 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13646 of ASN.1 items, but that structure is a bit different. 13647 13648 The largest change is in util/mkdef.pl which has been enhanced with 13649 better and easier to understand logic to choose which symbols should 13650 go into the Windows .def files as well as a number of fixes and code 13651 cleanup (among others, algorithm keywords are now sorted 13652 lexicographically to avoid constant rewrites). 13653 13654 *Richard Levitte* 13655 13656 * In BN_div() keep a copy of the sign of 'num' before writing the 13657 result to 'rm' because if rm==num the value will be overwritten 13658 and produce the wrong result if 'num' is negative: this caused 13659 problems with BN_mod() and BN_nnmod(). 13660 13661 *Steve Henson* 13662 13663 * Function OCSP_request_verify(). This checks the signature on an 13664 OCSP request and verifies the signer certificate. The signer 13665 certificate is just checked for a generic purpose and OCSP request 13666 trust settings. 13667 13668 *Steve Henson* 13669 13670 * Add OCSP_check_validity() function to check the validity of OCSP 13671 responses. OCSP responses are prepared in real time and may only 13672 be a few seconds old. Simply checking that the current time lies 13673 between thisUpdate and nextUpdate max reject otherwise valid responses 13674 caused by either OCSP responder or client clock inaccuracy. Instead 13675 we allow thisUpdate and nextUpdate to fall within a certain period of 13676 the current time. The age of the response can also optionally be 13677 checked. Two new options -validity_period and -status_age added to 13678 ocsp utility. 13679 13680 *Steve Henson* 13681 13682 * If signature or public key algorithm is unrecognized print out its 13683 OID rather that just UNKNOWN. 13684 13685 *Steve Henson* 13686 13687 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13688 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13689 ID to be generated from the issuer certificate alone which can then be 13690 passed to OCSP_id_issuer_cmp(). 13691 13692 *Steve Henson* 13693 13694 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13695 ASN1 modules to export functions returning ASN1_ITEM pointers 13696 instead of the ASN1_ITEM structures themselves. This adds several 13697 new macros which allow the underlying ASN1 function/structure to 13698 be accessed transparently. As a result code should not use ASN1_ITEM 13699 references directly (such as &X509_it) but instead use the relevant 13700 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13701 use of the new ASN1 code on platforms where exporting structures 13702 is problematical (for example in shared libraries) but exporting 13703 functions returning pointers to structures is not. 13704 13705 *Steve Henson* 13706 13707 * Add support for overriding the generation of SSL/TLS session IDs. 13708 These callbacks can be registered either in an SSL_CTX or per SSL. 13709 The purpose of this is to allow applications to control, if they wish, 13710 the arbitrary values chosen for use as session IDs, particularly as it 13711 can be useful for session caching in multiple-server environments. A 13712 command-line switch for testing this (and any client code that wishes 13713 to use such a feature) has been added to "s_server". 13714 13715 *Geoff Thorpe, Lutz Jaenicke* 13716 13717 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13718 of the form `#if defined(...) || defined(...) || ...` and 13719 `#if !defined(...) && !defined(...) && ...`. This also avoids 13720 the growing number of special cases it was previously handling. 13721 13722 *Richard Levitte* 13723 13724 * Make all configuration macros available for application by making 13725 sure they are available in opensslconf.h, by giving them names starting 13726 with `OPENSSL_` to avoid conflicts with other packages and by making 13727 sure e_os2.h will cover all platform-specific cases together with 13728 opensslconf.h. 13729 Additionally, it is now possible to define configuration/platform- 13730 specific names (called "system identities"). In the C code, these 13731 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13732 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13733 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13734 what is available. 13735 13736 *Richard Levitte* 13737 13738 * New option -set_serial to 'req' and 'x509' this allows the serial 13739 number to use to be specified on the command line. Previously self 13740 signed certificates were hard coded with serial number 0 and the 13741 CA options of 'x509' had to use a serial number in a file which was 13742 auto incremented. 13743 13744 *Steve Henson* 13745 13746 * New options to 'ca' utility to support V2 CRL entry extensions. 13747 Currently CRL reason, invalidity date and hold instruction are 13748 supported. Add new CRL extensions to V3 code and some new objects. 13749 13750 *Steve Henson* 13751 13752 * New function EVP_CIPHER_CTX_set_padding() this is used to 13753 disable standard block padding (aka PKCS#5 padding) in the EVP 13754 API, which was previously mandatory. This means that the data is 13755 not padded in any way and so the total length much be a multiple 13756 of the block size, otherwise an error occurs. 13757 13758 *Steve Henson* 13759 13760 * Initial (incomplete) OCSP SSL support. 13761 13762 *Steve Henson* 13763 13764 * New function OCSP_parse_url(). This splits up a URL into its host, 13765 port and path components: primarily to parse OCSP URLs. New -url 13766 option to ocsp utility. 13767 13768 *Steve Henson* 13769 13770 * New nonce behavior. The return value of OCSP_check_nonce() now 13771 reflects the various checks performed. Applications can decide 13772 whether to tolerate certain situations such as an absent nonce 13773 in a response when one was present in a request: the ocsp application 13774 just prints out a warning. New function OCSP_add1_basic_nonce() 13775 this is to allow responders to include a nonce in a response even if 13776 the request is nonce-less. 13777 13778 *Steve Henson* 13779 13780 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13781 skipped when using openssl x509 multiple times on a single input file, 13782 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13783 13784 *Bodo Moeller* 13785 13786 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 13787 set string type: to handle setting ASN1_TIME structures. Fix ca 13788 utility to correctly initialize revocation date of CRLs. 13789 13790 *Steve Henson* 13791 13792 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 13793 the clients preferred ciphersuites and rather use its own preferences. 13794 Should help to work around M$ SGC (Server Gated Cryptography) bug in 13795 Internet Explorer by ensuring unchanged hash method during stepup. 13796 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 13797 13798 *Lutz Jaenicke* 13799 13800 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 13801 to aes and add a new 'exist' option to print out symbols that don't 13802 appear to exist. 13803 13804 *Steve Henson* 13805 13806 * Additional options to ocsp utility to allow flags to be set and 13807 additional certificates supplied. 13808 13809 *Steve Henson* 13810 13811 * Add the option -VAfile to 'openssl ocsp', so the user can give the 13812 OCSP client a number of certificate to only verify the response 13813 signature against. 13814 13815 *Richard Levitte* 13816 13817 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 13818 handle the new API. Currently only ECB, CBC modes supported. Add new 13819 AES OIDs. 13820 13821 Add TLS AES ciphersuites as described in RFC3268, "Advanced 13822 Encryption Standard (AES) Ciphersuites for Transport Layer 13823 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 13824 not enabled by default and were not part of the "ALL" ciphersuite 13825 alias because they were not yet official; they could be 13826 explicitly requested by specifying the "AESdraft" ciphersuite 13827 group alias. In the final release of OpenSSL 0.9.7, the group 13828 alias is called "AES" and is part of "ALL".) 13829 13830 *Ben Laurie, Steve Henson, Bodo Moeller* 13831 13832 * New function OCSP_copy_nonce() to copy nonce value (if present) from 13833 request to response. 13834 13835 *Steve Henson* 13836 13837 * Functions for OCSP responders. OCSP_request_onereq_count(), 13838 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 13839 extract information from a certificate request. OCSP_response_create() 13840 creates a response and optionally adds a basic response structure. 13841 OCSP_basic_add1_status() adds a complete single response to a basic 13842 response and returns the OCSP_SINGLERESP structure just added (to allow 13843 extensions to be included for example). OCSP_basic_add1_cert() adds a 13844 certificate to a basic response and OCSP_basic_sign() signs a basic 13845 response with various flags. New helper functions ASN1_TIME_check() 13846 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 13847 (converts ASN1_TIME to GeneralizedTime). 13848 13849 *Steve Henson* 13850 13851 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 13852 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 13853 structure from a certificate. X509_pubkey_digest() digests the public_key 13854 contents: this is used in various key identifiers. 13855 13856 *Steve Henson* 13857 13858 * Make sk_sort() tolerate a NULL argument. 13859 13860 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 13861 13862 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 13863 passed by the function are trusted implicitly. If any of them signed the 13864 response then it is assumed to be valid and is not verified. 13865 13866 *Steve Henson* 13867 13868 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 13869 to data. This was previously part of the PKCS7 ASN1 code. This 13870 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 13871 *Steve Henson, reported by Kenneth R. Robinette 13872 <support@securenetterm.com>* 13873 13874 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 13875 routines: without these tracing memory leaks is very painful. 13876 Fix leaks in PKCS12 and PKCS7 routines. 13877 13878 *Steve Henson* 13879 13880 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 13881 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 13882 effectively meant GeneralizedTime would never be used. Now it 13883 is initialised to -1 but X509_time_adj() now has to check the value 13884 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 13885 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 13886 *Steve Henson, reported by Kenneth R. Robinette 13887 <support@securenetterm.com>* 13888 13889 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 13890 result in a zero length in the ASN1_INTEGER structure which was 13891 not consistent with the structure when d2i_ASN1_INTEGER() was used 13892 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 13893 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 13894 where it did not print out a minus for negative ASN1_INTEGER. 13895 13896 *Steve Henson* 13897 13898 * Add summary printout to ocsp utility. The various functions which 13899 convert status values to strings have been renamed to: 13900 OCSP_response_status_str(), OCSP_cert_status_str() and 13901 OCSP_crl_reason_str() and are no longer static. New options 13902 to verify nonce values and to disable verification. OCSP response 13903 printout format cleaned up. 13904 13905 *Steve Henson* 13906 13907 * Add additional OCSP certificate checks. These are those specified 13908 in RFC2560. This consists of two separate checks: the CA of the 13909 certificate being checked must either be the OCSP signer certificate 13910 or the issuer of the OCSP signer certificate. In the latter case the 13911 OCSP signer certificate must contain the OCSP signing extended key 13912 usage. This check is performed by attempting to match the OCSP 13913 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 13914 in the OCSP_CERTID structures of the response. 13915 13916 *Steve Henson* 13917 13918 * Initial OCSP certificate verification added to OCSP_basic_verify() 13919 and related routines. This uses the standard OpenSSL certificate 13920 verify routines to perform initial checks (just CA validity) and 13921 to obtain the certificate chain. Then additional checks will be 13922 performed on the chain. Currently the root CA is checked to see 13923 if it is explicitly trusted for OCSP signing. This is used to set 13924 a root CA as a global signing root: that is any certificate that 13925 chains to that CA is an acceptable OCSP signing certificate. 13926 13927 *Steve Henson* 13928 13929 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 13930 extensions from a separate configuration file. 13931 As when reading extensions from the main configuration file, 13932 the '-extensions ...' option may be used for specifying the 13933 section to use. 13934 13935 *Massimiliano Pala <madwolf@comune.modena.it>* 13936 13937 * New OCSP utility. Allows OCSP requests to be generated or 13938 read. The request can be sent to a responder and the output 13939 parsed, outputted or printed in text form. Not complete yet: 13940 still needs to check the OCSP response validity. 13941 13942 *Steve Henson* 13943 13944 * New subcommands for 'openssl ca': 13945 `openssl ca -status <serial>` prints the status of the cert with 13946 the given serial number (according to the index file). 13947 `openssl ca -updatedb` updates the expiry status of certificates 13948 in the index file. 13949 13950 *Massimiliano Pala <madwolf@comune.modena.it>* 13951 13952 * New '-newreq-nodes' command option to CA.pl. This is like 13953 '-newreq', but calls 'openssl req' with the '-nodes' option 13954 so that the resulting key is not encrypted. 13955 13956 *Damien Miller <djm@mindrot.org>* 13957 13958 * New configuration for the GNU Hurd. 13959 13960 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 13961 13962 * Initial code to implement OCSP basic response verify. This 13963 is currently incomplete. Currently just finds the signer's 13964 certificate and verifies the signature on the response. 13965 13966 *Steve Henson* 13967 13968 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 13969 value of OPENSSLDIR. This is available via the new '-d' option 13970 to 'openssl version', and is also included in 'openssl version -a'. 13971 13972 *Bodo Moeller* 13973 13974 * Allowing defining memory allocation callbacks that will be given 13975 file name and line number information in additional arguments 13976 (a `const char*` and an int). The basic functionality remains, as 13977 well as the original possibility to just replace malloc(), 13978 realloc() and free() by functions that do not know about these 13979 additional arguments. To register and find out the current 13980 settings for extended allocation functions, the following 13981 functions are provided: 13982 13983 CRYPTO_set_mem_ex_functions 13984 CRYPTO_set_locked_mem_ex_functions 13985 CRYPTO_get_mem_ex_functions 13986 CRYPTO_get_locked_mem_ex_functions 13987 13988 These work the same way as CRYPTO_set_mem_functions and friends. 13989 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 13990 extended allocation function is enabled. 13991 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 13992 a conventional allocation function is enabled. 13993 13994 *Richard Levitte, Bodo Moeller* 13995 13996 * Finish off removing the remaining LHASH function pointer casts. 13997 There should no longer be any prototype-casting required when using 13998 the LHASH abstraction, and any casts that remain are "bugs". See 13999 the callback types and macros at the head of lhash.h for details 14000 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 14001 14002 *Geoff Thorpe* 14003 14004 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 14005 If /dev/[u]random devices are not available or do not return enough 14006 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 14007 be queried. 14008 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 14009 /etc/entropy will be queried once each in this sequence, querying stops 14010 when enough entropy was collected without querying more sockets. 14011 14012 *Lutz Jaenicke* 14013 14014 * Change the Unix RAND_poll() variant to be able to poll several 14015 random devices, as specified by DEVRANDOM, until a sufficient amount 14016 of data has been collected. We spend at most 10 ms on each file 14017 (select timeout) and read in non-blocking mode. DEVRANDOM now 14018 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 14019 (previously it was just the string "/dev/urandom"), so on typical 14020 platforms the 10 ms delay will never occur. 14021 Also separate out the Unix variant to its own file, rand_unix.c. 14022 For VMS, there's a currently-empty rand_vms.c. 14023 14024 *Richard Levitte* 14025 14026 * Move OCSP client related routines to ocsp_cl.c. These 14027 provide utility functions which an application needing 14028 to issue a request to an OCSP responder and analyse the 14029 response will typically need: as opposed to those which an 14030 OCSP responder itself would need which will be added later. 14031 14032 OCSP_request_sign() signs an OCSP request with an API similar 14033 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 14034 response. OCSP_response_get1_basic() extracts basic response 14035 from response. OCSP_resp_find_status(): finds and extracts status 14036 information from an OCSP_CERTID structure (which will be created 14037 when the request structure is built). These are built from lower 14038 level functions which work on OCSP_SINGLERESP structures but 14039 won't normally be used unless the application wishes to examine 14040 extensions in the OCSP response for example. 14041 14042 Replace nonce routines with a pair of functions. 14043 OCSP_request_add1_nonce() adds a nonce value and optionally 14044 generates a random value. OCSP_check_nonce() checks the 14045 validity of the nonce in an OCSP response. 14046 14047 *Steve Henson* 14048 14049 * Change function OCSP_request_add() to OCSP_request_add0_id(). 14050 This doesn't copy the supplied OCSP_CERTID and avoids the 14051 need to free up the newly created id. Change return type 14052 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 14053 This can then be used to add extensions to the request. 14054 Deleted OCSP_request_new(), since most of its functionality 14055 is now in OCSP_REQUEST_new() (and the case insensitive name 14056 clash) apart from the ability to set the request name which 14057 will be added elsewhere. 14058 14059 *Steve Henson* 14060 14061 * Update OCSP API. Remove obsolete extensions argument from 14062 various functions. Extensions are now handled using the new 14063 OCSP extension code. New simple OCSP HTTP function which 14064 can be used to send requests and parse the response. 14065 14066 *Steve Henson* 14067 14068 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 14069 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 14070 uses the special reorder version of SET OF to sort the attributes 14071 and reorder them to match the encoded order. This resolves a long 14072 standing problem: a verify on a PKCS7 structure just after signing 14073 it used to fail because the attribute order did not match the 14074 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 14075 it uses the received order. This is necessary to tolerate some broken 14076 software that does not order SET OF. This is handled by encoding 14077 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 14078 to produce the required SET OF. 14079 14080 *Steve Henson* 14081 14082 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 14083 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 14084 files to get correct declarations of the ASN.1 item variables. 14085 14086 *Richard Levitte* 14087 14088 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 14089 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 14090 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 14091 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 14092 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 14093 ASN1_ITEM and no wrapper functions. 14094 14095 *Steve Henson* 14096 14097 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 14098 replace the old function pointer based I/O routines. Change most of 14099 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 14100 14101 *Steve Henson* 14102 14103 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 14104 lines, recognize more "algorithms" that can be deselected, and make 14105 it complain about algorithm deselection that isn't recognised. 14106 14107 *Richard Levitte* 14108 14109 * New ASN1 functions to handle dup, sign, verify, digest, pack and 14110 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 14111 to use new functions. Add NO_ASN1_OLD which can be set to remove 14112 some old style ASN1 functions: this can be used to determine if old 14113 code will still work when these eventually go away. 14114 14115 *Steve Henson* 14116 14117 * New extension functions for OCSP structures, these follow the 14118 same conventions as certificates and CRLs. 14119 14120 *Steve Henson* 14121 14122 * New function X509V3_add1_i2d(). This automatically encodes and 14123 adds an extension. Its behaviour can be customised with various 14124 flags to append, replace or delete. Various wrappers added for 14125 certificates and CRLs. 14126 14127 *Steve Henson* 14128 14129 * Fix to avoid calling the underlying ASN1 print routine when 14130 an extension cannot be parsed. Correct a typo in the 14131 OCSP_SERVICELOC extension. Tidy up print OCSP format. 14132 14133 *Steve Henson* 14134 14135 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 14136 entries for variables. 14137 14138 *Steve Henson* 14139 14140 * Add functionality to `apps/openssl.c` for detecting locking 14141 problems: As the program is single-threaded, all we have 14142 to do is register a locking callback using an array for 14143 storing which locks are currently held by the program. 14144 14145 *Bodo Moeller* 14146 14147 * Use a lock around the call to CRYPTO_get_ex_new_index() in 14148 SSL_get_ex_data_X509_STORE_idx(), which is used in 14149 ssl_verify_cert_chain() and thus can be called at any time 14150 during TLS/SSL handshakes so that thread-safety is essential. 14151 Unfortunately, the ex_data design is not at all suited 14152 for multi-threaded use, so it probably should be abolished. 14153 14154 *Bodo Moeller* 14155 14156 * Added Broadcom "ubsec" ENGINE to OpenSSL. 14157 14158 *Broadcom, tweaked and integrated by Geoff Thorpe* 14159 14160 * Move common extension printing code to new function 14161 X509V3_print_extensions(). Reorganise OCSP print routines and 14162 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14163 14164 *Steve Henson* 14165 14166 * New function X509_signature_print() to remove duplication in some 14167 print routines. 14168 14169 *Steve Henson* 14170 14171 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14172 set (this was treated exactly the same as SET OF previously). This 14173 is used to reorder the STACK representing the structure to match the 14174 encoding. This will be used to get round a problem where a PKCS7 14175 structure which was signed could not be verified because the STACK 14176 order did not reflect the encoded order. 14177 14178 *Steve Henson* 14179 14180 * Reimplement the OCSP ASN1 module using the new code. 14181 14182 *Steve Henson* 14183 14184 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14185 for its ASN1 operations. The old style function pointers still exist 14186 for now but they will eventually go away. 14187 14188 *Steve Henson* 14189 14190 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14191 completely replaces the old ASN1 functionality with a table driven 14192 encoder and decoder which interprets an ASN1_ITEM structure describing 14193 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14194 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14195 has also been converted to the new form. 14196 14197 *Steve Henson* 14198 14199 * Change BN_mod_exp_recp so that negative moduli are tolerated 14200 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14201 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14202 for negative moduli. 14203 14204 *Bodo Moeller* 14205 14206 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14207 of not touching the result's sign bit. 14208 14209 *Bodo Moeller* 14210 14211 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14212 set. 14213 14214 *Bodo Moeller* 14215 14216 * Changed the LHASH code to use prototypes for callbacks, and created 14217 macros to declare and implement thin (optionally static) functions 14218 that provide type-safety and avoid function pointer casting for the 14219 type-specific callbacks. 14220 14221 *Geoff Thorpe* 14222 14223 * Added Kerberos Cipher Suites to be used with TLS, as written in 14224 RFC 2712. 14225 *Veers Staats <staatsvr@asc.hpc.mil>, 14226 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14227 14228 * Reformat the FAQ so the different questions and answers can be divided 14229 in sections depending on the subject. 14230 14231 *Richard Levitte* 14232 14233 * Have the zlib compression code load ZLIB.DLL dynamically under 14234 Windows. 14235 14236 *Richard Levitte* 14237 14238 * New function BN_mod_sqrt for computing square roots modulo a prime 14239 (using the probabilistic Tonelli-Shanks algorithm unless 14240 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14241 be handled deterministically). 14242 14243 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14244 14245 * Make BN_mod_inverse faster by explicitly handling small quotients 14246 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14247 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14248 14249 *Bodo Moeller* 14250 14251 * New function BN_kronecker. 14252 14253 *Bodo Moeller* 14254 14255 * Fix BN_gcd so that it works on negative inputs; the result is 14256 positive unless both parameters are zero. 14257 Previously something reasonably close to an infinite loop was 14258 possible because numbers could be growing instead of shrinking 14259 in the implementation of Euclid's algorithm. 14260 14261 *Bodo Moeller* 14262 14263 * Fix BN_is_word() and BN_is_one() macros to take into account the 14264 sign of the number in question. 14265 14266 Fix BN_is_word(a,w) to work correctly for w == 0. 14267 14268 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14269 because its test if the absolute value of 'a' equals 'w'. 14270 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14271 it exists mostly for use in the implementations of BN_is_zero(), 14272 BN_is_one(), and BN_is_word(). 14273 14274 *Bodo Moeller* 14275 14276 * New function BN_swap. 14277 14278 *Bodo Moeller* 14279 14280 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14281 the exponentiation functions are more likely to produce reasonable 14282 results on negative inputs. 14283 14284 *Bodo Moeller* 14285 14286 * Change BN_mod_mul so that the result is always non-negative. 14287 Previously, it could be negative if one of the factors was negative; 14288 I don't think anyone really wanted that behaviour. 14289 14290 *Bodo Moeller* 14291 14292 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14293 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14294 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14295 and add new functions: 14296 14297 BN_nnmod 14298 BN_mod_sqr 14299 BN_mod_add 14300 BN_mod_add_quick 14301 BN_mod_sub 14302 BN_mod_sub_quick 14303 BN_mod_lshift1 14304 BN_mod_lshift1_quick 14305 BN_mod_lshift 14306 BN_mod_lshift_quick 14307 14308 These functions always generate non-negative results. 14309 14310 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14311 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14312 14313 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14314 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14315 be reduced modulo `m`. 14316 14317 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14318 14319<!-- 14320 The following entry accidentally appeared in the CHANGES file 14321 distributed with OpenSSL 0.9.7. The modifications described in 14322 it do *not* apply to OpenSSL 0.9.7. 14323 14324 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14325 was actually never needed) and in BN_mul(). The removal in BN_mul() 14326 required a small change in bn_mul_part_recursive() and the addition 14327 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14328 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14329 bn_sub_words() and bn_add_words() except they take arrays with 14330 differing sizes. 14331 14332 *Richard Levitte* 14333--> 14334 14335 * In 'openssl passwd', verify passwords read from the terminal 14336 unless the '-salt' option is used (which usually means that 14337 verification would just waste user's time since the resulting 14338 hash is going to be compared with some given password hash) 14339 or the new '-noverify' option is used. 14340 14341 This is an incompatible change, but it does not affect 14342 non-interactive use of 'openssl passwd' (passwords on the command 14343 line, '-stdin' option, '-in ...' option) and thus should not 14344 cause any problems. 14345 14346 *Bodo Moeller* 14347 14348 * Remove all references to RSAref, since there's no more need for it. 14349 14350 *Richard Levitte* 14351 14352 * Make DSO load along a path given through an environment variable 14353 (SHLIB_PATH) with shl_load(). 14354 14355 *Richard Levitte* 14356 14357 * Constify the ENGINE code as a result of BIGNUM constification. 14358 Also constify the RSA code and most things related to it. In a 14359 few places, most notable in the depth of the ASN.1 code, ugly 14360 casts back to non-const were required (to be solved at a later 14361 time) 14362 14363 *Richard Levitte* 14364 14365 * Make it so the openssl application has all engines loaded by default. 14366 14367 *Richard Levitte* 14368 14369 * Constify the BIGNUM routines a little more. 14370 14371 *Richard Levitte* 14372 14373 * Add the following functions: 14374 14375 ENGINE_load_cswift() 14376 ENGINE_load_chil() 14377 ENGINE_load_atalla() 14378 ENGINE_load_nuron() 14379 ENGINE_load_builtin_engines() 14380 14381 That way, an application can itself choose if external engines that 14382 are built-in in OpenSSL shall ever be used or not. The benefit is 14383 that applications won't have to be linked with libdl or other dso 14384 libraries unless it's really needed. 14385 14386 Changed 'openssl engine' to load all engines on demand. 14387 Changed the engine header files to avoid the duplication of some 14388 declarations (they differed!). 14389 14390 *Richard Levitte* 14391 14392 * 'openssl engine' can now list capabilities. 14393 14394 *Richard Levitte* 14395 14396 * Better error reporting in 'openssl engine'. 14397 14398 *Richard Levitte* 14399 14400 * Never call load_dh_param(NULL) in s_server. 14401 14402 *Bodo Moeller* 14403 14404 * Add engine application. It can currently list engines by name and 14405 identity, and test if they are actually available. 14406 14407 *Richard Levitte* 14408 14409 * Improve RPM specification file by forcing symbolic linking and making 14410 sure the installed documentation is also owned by root.root. 14411 14412 *Damien Miller <djm@mindrot.org>* 14413 14414 * Give the OpenSSL applications more possibilities to make use of 14415 keys (public as well as private) handled by engines. 14416 14417 *Richard Levitte* 14418 14419 * Add OCSP code that comes from CertCo. 14420 14421 *Richard Levitte* 14422 14423 * Add VMS support for the Rijndael code. 14424 14425 *Richard Levitte* 14426 14427 * Added untested support for Nuron crypto accelerator. 14428 14429 *Ben Laurie* 14430 14431 * Add support for external cryptographic devices. This code was 14432 previously distributed separately as the "engine" branch. 14433 14434 *Geoff Thorpe, Richard Levitte* 14435 14436 * Rework the filename-translation in the DSO code. It is now possible to 14437 have far greater control over how a "name" is turned into a filename 14438 depending on the operating environment and any oddities about the 14439 different shared library filenames on each system. 14440 14441 *Geoff Thorpe* 14442 14443 * Support threads on FreeBSD-elf in Configure. 14444 14445 *Richard Levitte* 14446 14447 * Fix for SHA1 assembly problem with MASM: it produces 14448 warnings about corrupt line number information when assembling 14449 with debugging information. This is caused by the overlapping 14450 of two sections. 14451 14452 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14453 14454 * NCONF changes. 14455 NCONF_get_number() has no error checking at all. As a replacement, 14456 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14457 promoted strongly. The old NCONF_get_number is kept around for 14458 binary backward compatibility. 14459 Make it possible for methods to load from something other than a BIO, 14460 by providing a function pointer that is given a name instead of a BIO. 14461 For example, this could be used to load configuration data from an 14462 LDAP server. 14463 14464 *Richard Levitte* 14465 14466 * Fix for non blocking accept BIOs. Added new I/O special reason 14467 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14468 with non blocking I/O was not possible because no retry code was 14469 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14470 this case. 14471 14472 *Steve Henson* 14473 14474 * Added the beginnings of Rijndael support. 14475 14476 *Ben Laurie* 14477 14478 * Fix for bug in DirectoryString mask setting. Add support for 14479 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14480 to allow certificate printing to more controllable, additional 14481 'certopt' option to 'x509' to allow new printing options to be 14482 set. 14483 14484 *Steve Henson* 14485 14486 * Clean old EAY MD5 hack from e_os.h. 14487 14488 *Richard Levitte* 14489 14490### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14491 14492 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14493 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14494 14495 *Joe Orton, Steve Henson* 14496 14497### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14498 14499 * Fix additional bug revealed by the NISCC test suite: 14500 14501 Stop bug triggering large recursion when presented with 14502 certain ASN.1 tags ([CVE-2003-0851]) 14503 14504 *Steve Henson* 14505 14506### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14507 14508 * Fix various bugs revealed by running the NISCC test suite: 14509 14510 Stop out of bounds reads in the ASN1 code when presented with 14511 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14512 14513 If verify callback ignores invalid public key errors don't try to check 14514 certificate signature with the NULL public key. 14515 14516 *Steve Henson* 14517 14518 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14519 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14520 specifications. 14521 14522 *Steve Henson* 14523 14524 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14525 extra data after the compression methods not only for TLS 1.0 14526 but also for SSL 3.0 (as required by the specification). 14527 14528 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14529 14530 * Change X509_certificate_type() to mark the key as exported/exportable 14531 when it's 512 *bits* long, not 512 bytes. 14532 14533 *Richard Levitte* 14534 14535### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14536 14537 * Countermeasure against the Klima-Pokorny-Rosa extension of 14538 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14539 a protocol version number mismatch like a decryption error 14540 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14541 14542 *Bodo Moeller* 14543 14544 * Turn on RSA blinding by default in the default implementation 14545 to avoid a timing attack. Applications that don't want it can call 14546 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14547 They would be ill-advised to do so in most cases. 14548 14549 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14550 14551 * Change RSA blinding code so that it works when the PRNG is not 14552 seeded (in this case, the secret RSA exponent is abused as 14553 an unpredictable seed -- if it is not unpredictable, there 14554 is no point in blinding anyway). Make RSA blinding thread-safe 14555 by remembering the creator's thread ID in rsa->blinding and 14556 having all other threads use local one-time blinding factors 14557 (this requires more computation than sharing rsa->blinding, but 14558 avoids excessive locking; and if an RSA object is not shared 14559 between threads, blinding will still be very fast). 14560 14561 *Bodo Moeller* 14562 14563### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14564 14565 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14566 via timing by performing a MAC computation even if incorrect 14567 block cipher padding has been found. This is a countermeasure 14568 against active attacks where the attacker has to distinguish 14569 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14570 14571 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14572 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14573 Martin Vuagnoux (EPFL, Ilion)* 14574 14575### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14576 14577 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14578 memory from its contents. This is done with a counter that will 14579 place alternating values in each byte. This can be used to solve 14580 two issues: 1) the removal of calls to memset() by highly optimizing 14581 compilers, and 2) cleansing with other values than 0, since those can 14582 be read through on certain media, for example a swap space on disk. 14583 14584 *Geoff Thorpe* 14585 14586 * Bugfix: client side session caching did not work with external caching, 14587 because the session->cipher setting was not restored when reloading 14588 from the external cache. This problem was masked, when 14589 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14590 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14591 14592 *Lutz Jaenicke* 14593 14594 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14595 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14596 14597 *Zeev Lieber <zeev-l@yahoo.com>* 14598 14599 * Undo an undocumented change introduced in 0.9.6e which caused 14600 repeated calls to OpenSSL_add_all_ciphers() and 14601 OpenSSL_add_all_digests() to be ignored, even after calling 14602 EVP_cleanup(). 14603 14604 *Richard Levitte* 14605 14606 * Change the default configuration reader to deal with last line not 14607 being properly terminated. 14608 14609 *Richard Levitte* 14610 14611 * Change X509_NAME_cmp() so it applies the special rules on handling 14612 DN values that are of type PrintableString, as well as RDNs of type 14613 emailAddress where the value has the type ia5String. 14614 14615 *stefank@valicert.com via Richard Levitte* 14616 14617 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14618 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14619 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14620 the bitwise-OR of the two for use by the majority of applications 14621 wanting this behaviour, and update the docs. The documented 14622 behaviour and actual behaviour were inconsistent and had been 14623 changing anyway, so this is more a bug-fix than a behavioural 14624 change. 14625 14626 *Geoff Thorpe, diagnosed by Nadav Har'El* 14627 14628 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14629 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14630 14631 *Bodo Moeller* 14632 14633 * Fix initialization code race conditions in 14634 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14635 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14636 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14637 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14638 ssl2_get_cipher_by_char(), 14639 ssl3_get_cipher_by_char(). 14640 14641 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14642 14643 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14644 the cached sessions are flushed, as the remove_cb() might use ex_data 14645 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14646 (see [openssl.org #212]). 14647 14648 *Geoff Thorpe, Lutz Jaenicke* 14649 14650 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14651 length, instead of the encoding length to d2i_ASN1_OBJECT. 14652 14653 *Steve Henson* 14654 14655### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14656 14657 * [In 0.9.6g-engine release:] 14658 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14659 14660 *Lynn Gazis <lgazis@rainbow.com>* 14661 14662### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14663 14664 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14665 and get fix the header length calculation. 14666 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14667 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14668 14669 * Use proper error handling instead of 'assertions' in buffer 14670 overflow checks added in 0.9.6e. This prevents DoS (the 14671 assertions could call abort()). 14672 14673 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14674 14675### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14676 14677 * Add various sanity checks to asn1_get_length() to reject 14678 the ASN1 length bytes if they exceed sizeof(long), will appear 14679 negative or the content length exceeds the length of the 14680 supplied buffer. 14681 14682 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14683 14684 * Fix cipher selection routines: ciphers without encryption had no flags 14685 for the cipher strength set and where therefore not handled correctly 14686 by the selection routines (PR #130). 14687 14688 *Lutz Jaenicke* 14689 14690 * Fix EVP_dsa_sha macro. 14691 14692 *Nils Larsch* 14693 14694 * New option 14695 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14696 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14697 that was added in OpenSSL 0.9.6d. 14698 14699 As the countermeasure turned out to be incompatible with some 14700 broken SSL implementations, the new option is part of SSL_OP_ALL. 14701 SSL_OP_ALL is usually employed when compatibility with weird SSL 14702 implementations is desired (e.g. '-bugs' option to 's_client' and 14703 's_server'), so the new option is automatically set in many 14704 applications. 14705 14706 *Bodo Moeller* 14707 14708 * Changes in security patch: 14709 14710 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14711 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14712 Air Force Materiel Command, USAF, under agreement number 14713 F30602-01-2-0537. 14714 14715 * Add various sanity checks to asn1_get_length() to reject 14716 the ASN1 length bytes if they exceed sizeof(long), will appear 14717 negative or the content length exceeds the length of the 14718 supplied buffer. ([CVE-2002-0659]) 14719 14720 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14721 14722 * Assertions for various potential buffer overflows, not known to 14723 happen in practice. 14724 14725 *Ben Laurie (CHATS)* 14726 14727 * Various temporary buffers to hold ASCII versions of integers were 14728 too small for 64 bit platforms. ([CVE-2002-0655]) 14729 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14730 14731 * Remote buffer overflow in SSL3 protocol - an attacker could 14732 supply an oversized session ID to a client. ([CVE-2002-0656]) 14733 14734 *Ben Laurie (CHATS)* 14735 14736 * Remote buffer overflow in SSL2 protocol - an attacker could 14737 supply an oversized client master key. ([CVE-2002-0656]) 14738 14739 *Ben Laurie (CHATS)* 14740 14741### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14742 14743 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14744 encoded as NULL) with id-dsa-with-sha1. 14745 14746 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14747 14748 * Check various `X509_...()` return values in `apps/req.c`. 14749 14750 *Nils Larsch <nla@trustcenter.de>* 14751 14752 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14753 an end-of-file condition would erroneously be flagged, when the CRLF 14754 was just at the end of a processed block. The bug was discovered when 14755 processing data through a buffering memory BIO handing the data to a 14756 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14757 <ptsekov@syntrex.com> and Nedelcho Stanev. 14758 14759 *Lutz Jaenicke* 14760 14761 * Implement a countermeasure against a vulnerability recently found 14762 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14763 before application data chunks to avoid the use of known IVs 14764 with data potentially chosen by the attacker. 14765 14766 *Bodo Moeller* 14767 14768 * Fix length checks in ssl3_get_client_hello(). 14769 14770 *Bodo Moeller* 14771 14772 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14773 to prevent ssl3_read_internal() from incorrectly assuming that 14774 ssl3_read_bytes() found application data while handshake 14775 processing was enabled when in fact s->s3->in_read_app_data was 14776 merely automatically cleared during the initial handshake. 14777 14778 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14779 14780 * Fix object definitions for Private and Enterprise: they were not 14781 recognized in their shortname (=lowercase) representation. Extend 14782 obj_dat.pl to issue an error when using undefined keywords instead 14783 of silently ignoring the problem (Svenning Sorensen 14784 <sss@sss.dnsalias.net>). 14785 14786 *Lutz Jaenicke* 14787 14788 * Fix DH_generate_parameters() so that it works for 'non-standard' 14789 generators, i.e. generators other than 2 and 5. (Previously, the 14790 code did not properly initialise the 'add' and 'rem' values to 14791 BN_generate_prime().) 14792 14793 In the new general case, we do not insist that 'generator' is 14794 actually a primitive root: This requirement is rather pointless; 14795 a generator of the order-q subgroup is just as good, if not 14796 better. 14797 14798 *Bodo Moeller* 14799 14800 * Map new X509 verification errors to alerts. Discovered and submitted by 14801 Tom Wu <tom@arcot.com>. 14802 14803 *Lutz Jaenicke* 14804 14805 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 14806 returning non-zero before the data has been completely received 14807 when using non-blocking I/O. 14808 14809 *Bodo Moeller; problem pointed out by John Hughes* 14810 14811 * Some of the ciphers missed the strength entry (SSL_LOW etc). 14812 14813 *Ben Laurie, Lutz Jaenicke* 14814 14815 * Fix bug in SSL_clear(): bad sessions were not removed (found by 14816 Yoram Zahavi <YoramZ@gilian.com>). 14817 14818 *Lutz Jaenicke* 14819 14820 * Add information about CygWin 1.3 and on, and preserve proper 14821 configuration for the versions before that. 14822 14823 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 14824 14825 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 14826 check whether we deal with a copy of a session and do not delete from 14827 the cache in this case. Problem reported by "Izhar Shoshani Levi" 14828 <izhar@checkpoint.com>. 14829 14830 *Lutz Jaenicke* 14831 14832 * Do not store session data into the internal session cache, if it 14833 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 14834 flag is set). Proposed by Aslam <aslam@funk.com>. 14835 14836 *Lutz Jaenicke* 14837 14838 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 14839 value is 0. 14840 14841 *Richard Levitte* 14842 14843 * [In 0.9.6d-engine release:] 14844 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 14845 14846 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 14847 14848 * Add the configuration target linux-s390x. 14849 14850 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 14851 14852 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 14853 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 14854 variable as an indication that a ClientHello message has been 14855 received. As the flag value will be lost between multiple 14856 invocations of ssl3_accept when using non-blocking I/O, the 14857 function may not be aware that a handshake has actually taken 14858 place, thus preventing a new session from being added to the 14859 session cache. 14860 14861 To avoid this problem, we now set s->new_session to 2 instead of 14862 using a local variable. 14863 14864 *Lutz Jaenicke, Bodo Moeller* 14865 14866 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 14867 if the SSL_R_LENGTH_MISMATCH error is detected. 14868 14869 *Geoff Thorpe, Bodo Moeller* 14870 14871 * New 'shared_ldflag' column in Configure platform table. 14872 14873 *Richard Levitte* 14874 14875 * Fix EVP_CIPHER_mode macro. 14876 14877 *"Dan S. Camper" <dan@bti.net>* 14878 14879 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 14880 type, we must throw them away by setting rr->length to 0. 14881 14882 *D P Chang <dpc@qualys.com>* 14883 14884### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 14885 14886 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 14887 <Dominikus.Scherkl@biodata.com>. (The previous implementation 14888 worked incorrectly for those cases where range = `10..._2` and 14889 `3*range` is two bits longer than range.) 14890 14891 *Bodo Moeller* 14892 14893 * Only add signing time to PKCS7 structures if it is not already 14894 present. 14895 14896 *Steve Henson* 14897 14898 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 14899 OBJ_ld_ce should be OBJ_id_ce. 14900 Also some ip-pda OIDs in crypto/objects/objects.txt were 14901 incorrect (cf. RFC 3039). 14902 14903 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 14904 14905 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 14906 returns early because it has nothing to do. 14907 14908 *Andy Schneider <andy.schneider@bjss.co.uk>* 14909 14910 * [In 0.9.6c-engine release:] 14911 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 14912 14913 *Andy Schneider <andy.schneider@bjss.co.uk>* 14914 14915 * [In 0.9.6c-engine release:] 14916 Add support for Cryptographic Appliance's keyserver technology. 14917 (Use engine 'keyclient') 14918 14919 *Cryptographic Appliances and Geoff Thorpe* 14920 14921 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 14922 is called via tools/c89.sh because arguments have to be 14923 rearranged (all '-L' options must appear before the first object 14924 modules). 14925 14926 *Richard Shapiro <rshapiro@abinitio.com>* 14927 14928 * [In 0.9.6c-engine release:] 14929 Add support for Broadcom crypto accelerator cards, backported 14930 from 0.9.7. 14931 14932 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 14933 14934 * [In 0.9.6c-engine release:] 14935 Add support for SureWare crypto accelerator cards from 14936 Baltimore Technologies. (Use engine 'sureware') 14937 14938 *Baltimore Technologies and Mark Cox* 14939 14940 * [In 0.9.6c-engine release:] 14941 Add support for crypto accelerator cards from Accelerated 14942 Encryption Processing, www.aep.ie. (Use engine 'aep') 14943 14944 *AEP Inc. and Mark Cox* 14945 14946 * Add a configuration entry for gcc on UnixWare. 14947 14948 *Gary Benson <gbenson@redhat.com>* 14949 14950 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 14951 messages are stored in a single piece (fixed-length part and 14952 variable-length part combined) and fix various bugs found on the way. 14953 14954 *Bodo Moeller* 14955 14956 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 14957 instead. BIO_gethostbyname() does not know what timeouts are 14958 appropriate, so entries would stay in cache even when they have 14959 become invalid. 14960 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 14961 14962 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 14963 faced with a pathologically small ClientHello fragment that does 14964 not contain client_version: Instead of aborting with an error, 14965 simply choose the highest available protocol version (i.e., 14966 TLS 1.0 unless it is disabled). In practice, ClientHello 14967 messages are never sent like this, but this change gives us 14968 strictly correct behaviour at least for TLS. 14969 14970 *Bodo Moeller* 14971 14972 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 14973 never resets s->method to s->ctx->method when called from within 14974 one of the SSL handshake functions. 14975 14976 *Bodo Moeller; problem pointed out by Niko Baric* 14977 14978 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 14979 (sent using the client's version number) if client_version is 14980 smaller than the protocol version in use. Also change 14981 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 14982 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 14983 the client will at least see that alert. 14984 14985 *Bodo Moeller* 14986 14987 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 14988 correctly. 14989 14990 *Bodo Moeller* 14991 14992 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 14993 client receives HelloRequest while in a handshake. 14994 14995 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 14996 14997 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 14998 should end in 'break', not 'goto end' which circumvents various 14999 cleanups done in state SSL_ST_OK. But session related stuff 15000 must be disabled for SSL_ST_OK in the case that we just sent a 15001 HelloRequest. 15002 15003 Also avoid some overhead by not calling ssl_init_wbio_buffer() 15004 before just sending a HelloRequest. 15005 15006 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 15007 15008 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 15009 reveal whether illegal block cipher padding was found or a MAC 15010 verification error occurred. (Neither SSLerr() codes nor alerts 15011 are directly visible to potential attackers, but the information 15012 may leak via logfiles.) 15013 15014 Similar changes are not required for the SSL 2.0 implementation 15015 because the number of padding bytes is sent in clear for SSL 2.0, 15016 and the extra bytes are just ignored. However ssl/s2_pkt.c 15017 failed to verify that the purported number of padding bytes is in 15018 the legal range. 15019 15020 *Bodo Moeller* 15021 15022 * Add OpenUNIX-8 support including shared libraries 15023 (Boyd Lynn Gerber <gerberb@zenez.com>). 15024 15025 *Lutz Jaenicke* 15026 15027 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 15028 'wristwatch attack' using huge encoding parameters (cf. 15029 James H. Manger's CRYPTO 2001 paper). Note that the 15030 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 15031 encoding parameters and hence was not vulnerable. 15032 15033 *Bodo Moeller* 15034 15035 * BN_sqr() bug fix. 15036 15037 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 15038 15039 * Rabin-Miller test analyses assume uniformly distributed witnesses, 15040 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 15041 followed by modular reduction. 15042 15043 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 15044 15045 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 15046 equivalent based on BN_pseudo_rand() instead of BN_rand(). 15047 15048 *Bodo Moeller* 15049 15050 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 15051 This function was broken, as the check for a new client hello message 15052 to handle SGC did not allow these large messages. 15053 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 15054 15055 *Lutz Jaenicke* 15056 15057 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 15058 15059 *Lutz Jaenicke* 15060 15061 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 15062 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 15063 15064 *Lutz Jaenicke* 15065 15066 * Rework the configuration and shared library support for Tru64 Unix. 15067 The configuration part makes use of modern compiler features and 15068 still retains old compiler behavior for those that run older versions 15069 of the OS. The shared library support part includes a variant that 15070 uses the RPATH feature, and is available through the special 15071 configuration target "alpha-cc-rpath", which will never be selected 15072 automatically. 15073 15074 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 15075 15076 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 15077 with the same message size as in ssl3_get_certificate_request(). 15078 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 15079 messages might inadvertently be reject as too long. 15080 15081 *Petr Lampa <lampa@fee.vutbr.cz>* 15082 15083 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 15084 15085 *Andy Polyakov* 15086 15087 * Modified SSL library such that the verify_callback that has been set 15088 specifically for an SSL object with SSL_set_verify() is actually being 15089 used. Before the change, a verify_callback set with this function was 15090 ignored and the verify_callback() set in the SSL_CTX at the time of 15091 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 15092 to allow the necessary settings. 15093 15094 *Lutz Jaenicke* 15095 15096 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 15097 explicitly to NULL, as at least on Solaris 8 this seems not always to be 15098 done automatically (in contradiction to the requirements of the C 15099 standard). This made problems when used from OpenSSH. 15100 15101 *Lutz Jaenicke* 15102 15103 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 15104 dh->length and always used 15105 15106 BN_rand_range(priv_key, dh->p). 15107 15108 BN_rand_range() is not necessary for Diffie-Hellman, and this 15109 specific range makes Diffie-Hellman unnecessarily inefficient if 15110 dh->length (recommended exponent length) is much smaller than the 15111 length of dh->p. We could use BN_rand_range() if the order of 15112 the subgroup was stored in the DH structure, but we only have 15113 dh->length. 15114 15115 So switch back to 15116 15117 BN_rand(priv_key, l, ...) 15118 15119 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 15120 otherwise. 15121 15122 *Bodo Moeller* 15123 15124 * In 15125 15126 RSA_eay_public_encrypt 15127 RSA_eay_private_decrypt 15128 RSA_eay_private_encrypt (signing) 15129 RSA_eay_public_decrypt (signature verification) 15130 15131 (default implementations for RSA_public_encrypt, 15132 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 15133 always reject numbers >= n. 15134 15135 *Bodo Moeller* 15136 15137 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 15138 to synchronize access to 'locking_thread'. This is necessary on 15139 systems where access to 'locking_thread' (an 'unsigned long' 15140 variable) is not atomic. 15141 15142 *Bodo Moeller* 15143 15144 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 15145 *before* setting the 'crypto_lock_rand' flag. The previous code had 15146 a race condition if 0 is a valid thread ID. 15147 15148 *Travis Vitek <vitek@roguewave.com>* 15149 15150 * Add support for shared libraries under Irix. 15151 15152 *Albert Chin-A-Young <china@thewrittenword.com>* 15153 15154 * Add configuration option to build on Linux on both big-endian and 15155 little-endian MIPS. 15156 15157 *Ralf Baechle <ralf@uni-koblenz.de>* 15158 15159 * Add the possibility to create shared libraries on HP-UX. 15160 15161 *Richard Levitte* 15162 15163### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15164 15165 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15166 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15167 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15168 PRNG state recovery was possible based on the output of 15169 one PRNG request appropriately sized to gain knowledge on 15170 'md' followed by enough consecutive 1-byte PRNG requests 15171 to traverse all of 'state'. 15172 15173 1. When updating 'md_local' (the current thread's copy of 'md') 15174 during PRNG output generation, hash all of the previous 15175 'md_local' value, not just the half used for PRNG output. 15176 15177 2. Make the number of bytes from 'state' included into the hash 15178 independent from the number of PRNG bytes requested. 15179 15180 The first measure alone would be sufficient to avoid 15181 Markku-Juhani's attack. (Actually it had never occurred 15182 to me that the half of 'md_local' used for chaining was the 15183 half from which PRNG output bytes were taken -- I had always 15184 assumed that the secret half would be used.) The second 15185 measure makes sure that additional data from 'state' is never 15186 mixed into 'md_local' in small portions; this heuristically 15187 further strengthens the PRNG. 15188 15189 *Bodo Moeller* 15190 15191 * Fix crypto/bn/asm/mips3.s. 15192 15193 *Andy Polyakov* 15194 15195 * When only the key is given to "enc", the IV is undefined. Print out 15196 an error message in this case. 15197 15198 *Lutz Jaenicke* 15199 15200 * Handle special case when X509_NAME is empty in X509 printing routines. 15201 15202 *Steve Henson* 15203 15204 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15205 positive and less than q. 15206 15207 *Bodo Moeller* 15208 15209 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15210 used: it isn't thread safe and the add_lock_callback should handle 15211 that itself. 15212 15213 *Paul Rose <Paul.Rose@bridge.com>* 15214 15215 * Verify that incoming data obeys the block size in 15216 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15217 15218 *Bodo Moeller* 15219 15220 * Fix OAEP check. 15221 15222 *Ulf Möller, Bodo Möller* 15223 15224 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15225 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15226 when fixing the server behaviour for backwards-compatible 'client 15227 hello' messages. (Note that the attack is impractical against 15228 SSL 3.0 and TLS 1.0 anyway because length and version checking 15229 means that the probability of guessing a valid ciphertext is 15230 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15231 paper.) 15232 15233 Before 0.9.5, the countermeasure (hide the error by generating a 15234 random 'decryption result') did not work properly because 15235 ERR_clear_error() was missing, meaning that SSL_get_error() would 15236 detect the supposedly ignored error. 15237 15238 Both problems are now fixed. 15239 15240 *Bodo Moeller* 15241 15242 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15243 (previously it was 1024). 15244 15245 *Bodo Moeller* 15246 15247 * Fix for compatibility mode trust settings: ignore trust settings 15248 unless some valid trust or reject settings are present. 15249 15250 *Steve Henson* 15251 15252 * Fix for blowfish EVP: its a variable length cipher. 15253 15254 *Steve Henson* 15255 15256 * Fix various bugs related to DSA S/MIME verification. Handle missing 15257 parameters in DSA public key structures and return an error in the 15258 DSA routines if parameters are absent. 15259 15260 *Steve Henson* 15261 15262 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15263 in the current directory if neither $RANDFILE nor $HOME was set. 15264 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15265 caused some confusion to Windows users who haven't defined $HOME. 15266 Thus RAND_file_name() is changed again: e_os.h can define a 15267 DEFAULT_HOME, which will be used if $HOME is not set. 15268 For Windows, we use "C:"; on other platforms, we still require 15269 environment variables. 15270 15271 * Move 'if (!initialized) RAND_poll()' into regions protected by 15272 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15273 having multiple threads call RAND_poll() concurrently. 15274 15275 *Bodo Moeller* 15276 15277 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15278 combination of a flag and a thread ID variable. 15279 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15280 flag), *other* threads can enter ssleay_add_bytes without obeying 15281 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15282 that they do not hold after the first thread unsets add_do_not_lock). 15283 15284 *Bodo Moeller* 15285 15286 * Change bctest again: '-x' expressions are not available in all 15287 versions of 'test'. 15288 15289 *Bodo Moeller* 15290 15291### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15292 15293 * Fix a couple of memory leaks in PKCS7_dataDecode() 15294 15295 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15296 15297 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15298 the default extension for executables, if any. Also, make the perl 15299 scripts that use symlink() to test if it really exists and use "cp" 15300 if it doesn't. All this made OpenSSL compilable and installable in 15301 CygWin. 15302 15303 *Richard Levitte* 15304 15305 * Fix for asn1_GetSequence() for indefinite length constructed data. 15306 If SEQUENCE is length is indefinite just set c->slen to the total 15307 amount of data available. 15308 15309 *Steve Henson, reported by shige@FreeBSD.org* 15310 15311 *This change does not apply to 0.9.7.* 15312 15313 * Change bctest to avoid here-documents inside command substitution 15314 (workaround for FreeBSD /bin/sh bug). 15315 For compatibility with Ultrix, avoid shell functions (introduced 15316 in the bctest version that searches along $PATH). 15317 15318 *Bodo Moeller* 15319 15320 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15321 with des_encrypt() defined on some operating systems, like Solaris 15322 and UnixWare. 15323 15324 *Richard Levitte* 15325 15326 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15327 On the Importance of Eliminating Errors in Cryptographic 15328 Computations, J. Cryptology 14 (2001) 2, 101-119, 15329 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15330 15331 *Ulf Moeller* 15332 15333 * MIPS assembler BIGNUM division bug fix. 15334 15335 *Andy Polyakov* 15336 15337 * Disabled incorrect Alpha assembler code. 15338 15339 *Richard Levitte* 15340 15341 * Fix PKCS#7 decode routines so they correctly update the length 15342 after reading an EOC for the EXPLICIT tag. 15343 15344 *Steve Henson* 15345 15346 *This change does not apply to 0.9.7.* 15347 15348 * Fix bug in PKCS#12 key generation routines. This was triggered 15349 if a 3DES key was generated with a 0 initial byte. Include 15350 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15351 (but broken) behaviour. 15352 15353 *Steve Henson* 15354 15355 * Enhance bctest to search for a working bc along $PATH and print 15356 it when found. 15357 15358 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15359 15360 * Fix memory leaks in err.c: free err_data string if necessary; 15361 don't write to the wrong index in ERR_set_error_data. 15362 15363 *Bodo Moeller* 15364 15365 * Implement ssl23_peek (analogous to ssl23_read), which previously 15366 did not exist. 15367 15368 *Bodo Moeller* 15369 15370 * Replace rdtsc with `_emit` statements for VC++ version 5. 15371 15372 *Jeremy Cooper <jeremy@baymoo.org>* 15373 15374 * Make it possible to reuse SSLv2 sessions. 15375 15376 *Richard Levitte* 15377 15378 * In copy_email() check for >= 0 as a return value for 15379 X509_NAME_get_index_by_NID() since 0 is a valid index. 15380 15381 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15382 15383 * Avoid coredump with unsupported or invalid public keys by checking if 15384 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15385 PKCS7_verify() fails with non detached data. 15386 15387 *Steve Henson* 15388 15389 * Don't use getenv in library functions when run as setuid/setgid. 15390 New function OPENSSL_issetugid(). 15391 15392 *Ulf Moeller* 15393 15394 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15395 due to incorrect handling of multi-threading: 15396 15397 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15398 15399 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15400 15401 3. Count how many times MemCheck_off() has been called so that 15402 nested use can be treated correctly. This also avoids 15403 inband-signalling in the previous code (which relied on the 15404 assumption that thread ID 0 is impossible). 15405 15406 *Bodo Moeller* 15407 15408 * Add "-rand" option also to s_client and s_server. 15409 15410 *Lutz Jaenicke* 15411 15412 * Fix CPU detection on Irix 6.x. 15413 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15414 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15415 15416 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15417 was empty. 15418 15419 *Steve Henson* 15420 15421 *This change does not apply to 0.9.7.* 15422 15423 * Use the cached encoding of an X509_NAME structure rather than 15424 copying it. This is apparently the reason for the libsafe "errors" 15425 but the code is actually correct. 15426 15427 *Steve Henson* 15428 15429 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15430 Bleichenbacher's DSA attack. 15431 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15432 to be set and top=0 forces the highest bit to be set; top=-1 is new 15433 and leaves the highest bit random. 15434 15435 *Ulf Moeller, Bodo Moeller* 15436 15437 * In the `NCONF_...`-based implementations for `CONF_...` queries 15438 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15439 a temporary CONF structure with the data component set to NULL 15440 (which gives segmentation faults in lh_retrieve). 15441 Instead, use NULL for the CONF pointer in CONF_get_string and 15442 CONF_get_number (which may use environment variables) and directly 15443 return NULL from CONF_get_section. 15444 15445 *Bodo Moeller* 15446 15447 * Fix potential buffer overrun for EBCDIC. 15448 15449 *Ulf Moeller* 15450 15451 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15452 keyUsage if basicConstraints absent for a CA. 15453 15454 *Steve Henson* 15455 15456 * Make SMIME_write_PKCS7() write mail header values with a format that 15457 is more generally accepted (no spaces before the semicolon), since 15458 some programs can't parse those values properly otherwise. Also make 15459 sure BIO's that break lines after each write do not create invalid 15460 headers. 15461 15462 *Richard Levitte* 15463 15464 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15465 macros previously used would not encode an empty SEQUENCE OF 15466 and break the signature. 15467 15468 *Steve Henson* 15469 15470 *This change does not apply to 0.9.7.* 15471 15472 * Zero the premaster secret after deriving the master secret in 15473 DH ciphersuites. 15474 15475 *Steve Henson* 15476 15477 * Add some EVP_add_digest_alias registrations (as found in 15478 OpenSSL_add_all_digests()) to SSL_library_init() 15479 aka OpenSSL_add_ssl_algorithms(). This provides improved 15480 compatibility with peers using X.509 certificates 15481 with unconventional AlgorithmIdentifier OIDs. 15482 15483 *Bodo Moeller* 15484 15485 * Fix for Irix with NO_ASM. 15486 15487 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15488 15489 * ./config script fixes. 15490 15491 *Ulf Moeller, Richard Levitte* 15492 15493 * Fix 'openssl passwd -1'. 15494 15495 *Bodo Moeller* 15496 15497 * Change PKCS12_key_gen_asc() so it can cope with non null 15498 terminated strings whose length is passed in the passlen 15499 parameter, for example from PEM callbacks. This was done 15500 by adding an extra length parameter to asc2uni(). 15501 15502 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15503 15504 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15505 call failed, free the DSA structure. 15506 15507 *Bodo Moeller* 15508 15509 * Fix to uni2asc() to cope with zero length Unicode strings. 15510 These are present in some PKCS#12 files. 15511 15512 *Steve Henson* 15513 15514 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15515 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15516 when writing a 32767 byte record. 15517 15518 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15519 15520 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15521 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15522 15523 (RSA objects have a reference count access to which is protected 15524 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15525 so they are meant to be shared between threads.) 15526 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15527 "Reddie, Steven" <Steven.Reddie@ca.com>* 15528 15529 * Fix a deadlock in CRYPTO_mem_leaks(). 15530 15531 *Bodo Moeller* 15532 15533 * Use better test patterns in bntest. 15534 15535 *Ulf Möller* 15536 15537 * rand_win.c fix for Borland C. 15538 15539 *Ulf Möller* 15540 15541 * BN_rshift bugfix for n == 0. 15542 15543 *Bodo Moeller* 15544 15545 * Add a 'bctest' script that checks for some known 'bc' bugs 15546 so that 'make test' does not abort just because 'bc' is broken. 15547 15548 *Bodo Moeller* 15549 15550 * Store verify_result within SSL_SESSION also for client side to 15551 avoid potential security hole. (Re-used sessions on the client side 15552 always resulted in verify_result==X509_V_OK, not using the original 15553 result of the server certificate verification.) 15554 15555 *Lutz Jaenicke* 15556 15557 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15558 SSL3_RT_APPLICATION_DATA, return 0. 15559 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15560 15561 *Bodo Moeller* 15562 15563 * Fix SSL_peek: 15564 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15565 releases, have been re-implemented by renaming the previous 15566 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15567 and ssl3_read_internal, respectively, and adding 'peek' parameters 15568 to them. The new ssl[23]_{read,peek} functions are calls to 15569 ssl[23]_read_internal with the 'peek' flag set appropriately. 15570 A 'peek' parameter has also been added to ssl3_read_bytes, which 15571 does the actual work for ssl3_read_internal. 15572 15573 *Bodo Moeller* 15574 15575 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15576 the method-specific "init()" handler. Also clean up ex_data after 15577 calling the method-specific "finish()" handler. Previously, this was 15578 happening the other way round. 15579 15580 *Geoff Thorpe* 15581 15582 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15583 The previous value, 12, was not always sufficient for BN_mod_exp(). 15584 15585 *Bodo Moeller* 15586 15587 * Make sure that shared libraries get the internal name engine with 15588 the full version number and not just 0. This should mark the 15589 shared libraries as not backward compatible. Of course, this should 15590 be changed again when we can guarantee backward binary compatibility. 15591 15592 *Richard Levitte* 15593 15594 * Fix typo in get_cert_by_subject() in by_dir.c 15595 15596 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15597 15598 * Rework the system to generate shared libraries: 15599 15600 - Make note of the expected extension for the shared libraries and 15601 if there is a need for symbolic links from for example libcrypto.so.0 15602 to libcrypto.so.0.9.7. There is extended info in Configure for 15603 that. 15604 15605 - Make as few rebuilds of the shared libraries as possible. 15606 15607 - Still avoid linking the OpenSSL programs with the shared libraries. 15608 15609 - When installing, install the shared libraries separately from the 15610 static ones. 15611 15612 *Richard Levitte* 15613 15614 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15615 15616 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15617 and not in SSL_clear because the latter is also used by the 15618 accept/connect functions; previously, the settings made by 15619 SSL_set_read_ahead would be lost during the handshake. 15620 15621 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15622 15623 * Correct util/mkdef.pl to be selective about disabled algorithms. 15624 Previously, it would create entries for disabled algorithms no 15625 matter what. 15626 15627 *Richard Levitte* 15628 15629 * Added several new manual pages for SSL_* function. 15630 15631 *Lutz Jaenicke* 15632 15633### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15634 15635 * In ssl23_get_client_hello, generate an error message when faced 15636 with an initial SSL 3.0/TLS record that is too small to contain the 15637 first two bytes of the ClientHello message, i.e. client_version. 15638 (Note that this is a pathologic case that probably has never happened 15639 in real life.) The previous approach was to use the version number 15640 from the record header as a substitute; but our protocol choice 15641 should not depend on that one because it is not authenticated 15642 by the Finished messages. 15643 15644 *Bodo Moeller* 15645 15646 * More robust randomness gathering functions for Windows. 15647 15648 *Jeffrey Altman <jaltman@columbia.edu>* 15649 15650 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15651 not set then we don't setup the error code for issuer check errors 15652 to avoid possibly overwriting other errors which the callback does 15653 handle. If an application does set the flag then we assume it knows 15654 what it is doing and can handle the new informational codes 15655 appropriately. 15656 15657 *Steve Henson* 15658 15659 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15660 a general "ANY" type, as such it should be able to decode anything 15661 including tagged types. However it didn't check the class so it would 15662 wrongly interpret tagged types in the same way as their universal 15663 counterpart and unknown types were just rejected. Changed so that the 15664 tagged and unknown types are handled in the same way as a SEQUENCE: 15665 that is the encoding is stored intact. There is also a new type 15666 "V_ASN1_OTHER" which is used when the class is not universal, in this 15667 case we have no idea what the actual type is so we just lump them all 15668 together. 15669 15670 *Steve Henson* 15671 15672 * On VMS, stdout may very well lead to a file that is written to 15673 in a record-oriented fashion. That means that every write() will 15674 write a separate record, which will be read separately by the 15675 programs trying to read from it. This can be very confusing. 15676 15677 The solution is to put a BIO filter in the way that will buffer 15678 text until a linefeed is reached, and then write everything a 15679 line at a time, so every record written will be an actual line, 15680 not chunks of lines and not (usually doesn't happen, but I've 15681 seen it once) several lines in one record. BIO_f_linebuffer() is 15682 the answer. 15683 15684 Currently, it's a VMS-only method, because that's where it has 15685 been tested well enough. 15686 15687 *Richard Levitte* 15688 15689 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15690 it can return incorrect results. 15691 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15692 but it was in 0.9.6-beta[12].) 15693 15694 *Bodo Moeller* 15695 15696 * Disable the check for content being present when verifying detached 15697 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15698 include zero length content when signing messages. 15699 15700 *Steve Henson* 15701 15702 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15703 BIO_ctrl (for BIO pairs). 15704 15705 *Bodo Möller* 15706 15707 * Add DSO method for VMS. 15708 15709 *Richard Levitte* 15710 15711 * Bug fix: Montgomery multiplication could produce results with the 15712 wrong sign. 15713 15714 *Ulf Möller* 15715 15716 * Add RPM specification openssl.spec and modify it to build three 15717 packages. The default package contains applications, application 15718 documentation and run-time libraries. The devel package contains 15719 include files, static libraries and function documentation. The 15720 doc package contains the contents of the doc directory. The original 15721 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15722 15723 *Richard Levitte* 15724 15725 * Add a large number of documentation files for many SSL routines. 15726 15727 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15728 15729 * Add a configuration entry for Sony News 4. 15730 15731 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15732 15733 * Don't set the two most significant bits to one when generating a 15734 random number < q in the DSA library. 15735 15736 *Ulf Möller* 15737 15738 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15739 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15740 the underlying transport is blocking) if a handshake took place. 15741 (The default behaviour is needed by applications such as s_client 15742 and s_server that use select() to determine when to use SSL_read; 15743 but for applications that know in advance when to expect data, it 15744 just makes things more complicated.) 15745 15746 *Bodo Moeller* 15747 15748 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15749 from EGD. 15750 15751 *Ben Laurie* 15752 15753 * Add a few more EBCDIC conditionals that make `req` and `x509` 15754 work better on such systems. 15755 15756 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15757 15758 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15759 Update PKCS12_parse() so it copies the friendlyName and the 15760 keyid to the certificates aux info. 15761 15762 *Steve Henson* 15763 15764 * Fix bug in PKCS7_verify() which caused an infinite loop 15765 if there was more than one signature. 15766 15767 *Sven Uszpelkat <su@celocom.de>* 15768 15769 * Major change in util/mkdef.pl to include extra information 15770 about each symbol, as well as presenting variables as well 15771 as functions. This change means that there's n more need 15772 to rebuild the .num files when some algorithms are excluded. 15773 15774 *Richard Levitte* 15775 15776 * Allow the verify time to be set by an application, 15777 rather than always using the current time. 15778 15779 *Steve Henson* 15780 15781 * Phase 2 verify code reorganisation. The certificate 15782 verify code now looks up an issuer certificate by a 15783 number of criteria: subject name, authority key id 15784 and key usage. It also verifies self signed certificates 15785 by the same criteria. The main comparison function is 15786 X509_check_issued() which performs these checks. 15787 15788 Lot of changes were necessary in order to support this 15789 without completely rewriting the lookup code. 15790 15791 Authority and subject key identifier are now cached. 15792 15793 The LHASH 'certs' is X509_STORE has now been replaced 15794 by a STACK_OF(X509_OBJECT). This is mainly because an 15795 LHASH can't store or retrieve multiple objects with 15796 the same hash value. 15797 15798 As a result various functions (which were all internal 15799 use only) have changed to handle the new X509_STORE 15800 structure. This will break anything that messed round 15801 with X509_STORE internally. 15802 15803 The functions X509_STORE_add_cert() now checks for an 15804 exact match, rather than just subject name. 15805 15806 The X509_STORE API doesn't directly support the retrieval 15807 of multiple certificates matching a given criteria, however 15808 this can be worked round by performing a lookup first 15809 (which will fill the cache with candidate certificates) 15810 and then examining the cache for matches. This is probably 15811 the best we can do without throwing out X509_LOOKUP 15812 entirely (maybe later...). 15813 15814 The X509_VERIFY_CTX structure has been enhanced considerably. 15815 15816 All certificate lookup operations now go via a get_issuer() 15817 callback. Although this currently uses an X509_STORE it 15818 can be replaced by custom lookups. This is a simple way 15819 to bypass the X509_STORE hackery necessary to make this 15820 work and makes it possible to use more efficient techniques 15821 in future. A very simple version which uses a simple 15822 STACK for its trusted certificate store is also provided 15823 using X509_STORE_CTX_trusted_stack(). 15824 15825 The verify_cb() and verify() callbacks now have equivalents 15826 in the X509_STORE_CTX structure. 15827 15828 X509_STORE_CTX also has a 'flags' field which can be used 15829 to customise the verify behaviour. 15830 15831 *Steve Henson* 15832 15833 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 15834 excludes S/MIME capabilities. 15835 15836 *Steve Henson* 15837 15838 * When a certificate request is read in keep a copy of the 15839 original encoding of the signed data and use it when outputting 15840 again. Signatures then use the original encoding rather than 15841 a decoded, encoded version which may cause problems if the 15842 request is improperly encoded. 15843 15844 *Steve Henson* 15845 15846 * For consistency with other BIO_puts implementations, call 15847 buffer_write(b, ...) directly in buffer_puts instead of calling 15848 BIO_write(b, ...). 15849 15850 In BIO_puts, increment b->num_write as in BIO_write. 15851 15852 *Peter.Sylvester@EdelWeb.fr* 15853 15854 * Fix BN_mul_word for the case where the word is 0. (We have to use 15855 BN_zero, we may not return a BIGNUM with an array consisting of 15856 words set to zero.) 15857 15858 *Bodo Moeller* 15859 15860 * Avoid calling abort() from within the library when problems are 15861 detected, except if preprocessor symbols have been defined 15862 (such as REF_CHECK, BN_DEBUG etc.). 15863 15864 *Bodo Moeller* 15865 15866 * New openssl application 'rsautl'. This utility can be 15867 used for low-level RSA operations. DER public key 15868 BIO/fp routines also added. 15869 15870 *Steve Henson* 15871 15872 * New Configure entry and patches for compiling on QNX 4. 15873 15874 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 15875 15876 * A demo state-machine implementation was sponsored by 15877 Nuron (<http://www.nuron.com/>) and is now available in 15878 demos/state_machine. 15879 15880 *Ben Laurie* 15881 15882 * New options added to the 'dgst' utility for signature 15883 generation and verification. 15884 15885 *Steve Henson* 15886 15887 * Unrecognized PKCS#7 content types are now handled via a 15888 catch all ASN1_TYPE structure. This allows unsupported 15889 types to be stored as a "blob" and an application can 15890 encode and decode it manually. 15891 15892 *Steve Henson* 15893 15894 * Fix various signed/unsigned issues to make a_strex.c 15895 compile under VC++. 15896 15897 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 15898 15899 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 15900 length if passed a buffer. ASN1_INTEGER_to_BN failed 15901 if passed a NULL BN and its argument was negative. 15902 15903 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 15904 15905 * Modification to PKCS#7 encoding routines to output definite 15906 length encoding. Since currently the whole structures are in 15907 memory there's not real point in using indefinite length 15908 constructed encoding. However if OpenSSL is compiled with 15909 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 15910 15911 *Steve Henson* 15912 15913 * Added BIO_vprintf() and BIO_vsnprintf(). 15914 15915 *Richard Levitte* 15916 15917 * Added more prefixes to parse for in the strings written 15918 through a logging bio, to cover all the levels that are available 15919 through syslog. The prefixes are now: 15920 15921 PANIC, EMERG, EMR => LOG_EMERG 15922 ALERT, ALR => LOG_ALERT 15923 CRIT, CRI => LOG_CRIT 15924 ERROR, ERR => LOG_ERR 15925 WARNING, WARN, WAR => LOG_WARNING 15926 NOTICE, NOTE, NOT => LOG_NOTICE 15927 INFO, INF => LOG_INFO 15928 DEBUG, DBG => LOG_DEBUG 15929 15930 and as before, if none of those prefixes are present at the 15931 beginning of the string, LOG_ERR is chosen. 15932 15933 On Win32, the `LOG_*` levels are mapped according to this: 15934 15935 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 15936 LOG_WARNING => EVENTLOG_WARNING_TYPE 15937 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 15938 15939 *Richard Levitte* 15940 15941 * Made it possible to reconfigure with just the configuration 15942 argument "reconf" or "reconfigure". The command line arguments 15943 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 15944 and are retrieved from there when reconfiguring. 15945 15946 *Richard Levitte* 15947 15948 * MD4 implemented. 15949 15950 *Assar Westerlund <assar@sics.se>, Richard Levitte* 15951 15952 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 15953 15954 *Richard Levitte* 15955 15956 * The obj_dat.pl script was messing up the sorting of object 15957 names. The reason was that it compared the quoted version 15958 of strings as a result "OCSP" > "OCSP Signing" because 15959 " > SPACE. Changed script to store unquoted versions of 15960 names and add quotes on output. It was also omitting some 15961 names from the lookup table if they were given a default 15962 value (that is if SN is missing it is given the same 15963 value as LN and vice versa), these are now added on the 15964 grounds that if an object has a name we should be able to 15965 look it up. Finally added warning output when duplicate 15966 short or long names are found. 15967 15968 *Steve Henson* 15969 15970 * Changes needed for Tandem NSK. 15971 15972 *Scott Uroff <scott@xypro.com>* 15973 15974 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 15975 RSA_padding_check_SSLv23(), special padding was never detected 15976 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 15977 version rollback attacks was not effective. 15978 15979 In s23_clnt.c, don't use special rollback-attack detection padding 15980 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 15981 client; similarly, in s23_srvr.c, don't do the rollback check if 15982 SSL 2.0 is the only protocol enabled in the server. 15983 15984 *Bodo Moeller* 15985 15986 * Make it possible to get hexdumps of unprintable data with 'openssl 15987 asn1parse'. By implication, the functions ASN1_parse_dump() and 15988 BIO_dump_indent() are added. 15989 15990 *Richard Levitte* 15991 15992 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 15993 these print out strings and name structures based on various 15994 flags including RFC2253 support and proper handling of 15995 multibyte characters. Added options to the 'x509' utility 15996 to allow the various flags to be set. 15997 15998 *Steve Henson* 15999 16000 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 16001 Also change the functions X509_cmp_current_time() and 16002 X509_gmtime_adj() work with an ASN1_TIME structure, 16003 this will enable certificates using GeneralizedTime in validity 16004 dates to be checked. 16005 16006 *Steve Henson* 16007 16008 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 16009 negative public key encodings) on by default, 16010 NO_NEG_PUBKEY_BUG can be set to disable it. 16011 16012 *Steve Henson* 16013 16014 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 16015 content octets. An i2c_ASN1_OBJECT is unnecessary because 16016 the encoding can be trivially obtained from the structure. 16017 16018 *Steve Henson* 16019 16020 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 16021 not read locks (`CRYPTO_r_[un]lock`). 16022 16023 *Bodo Moeller* 16024 16025 * A first attempt at creating official support for shared 16026 libraries through configuration. I've kept it so the 16027 default is static libraries only, and the OpenSSL programs 16028 are always statically linked for now, but there are 16029 preparations for dynamic linking in place. 16030 This has been tested on Linux and Tru64. 16031 16032 *Richard Levitte* 16033 16034 * Randomness polling function for Win9x, as described in: 16035 Peter Gutmann, Software Generation of Practically Strong 16036 Random Numbers. 16037 16038 *Ulf Möller* 16039 16040 * Fix so PRNG is seeded in req if using an already existing 16041 DSA key. 16042 16043 *Steve Henson* 16044 16045 * New options to smime application. -inform and -outform 16046 allow alternative formats for the S/MIME message including 16047 PEM and DER. The -content option allows the content to be 16048 specified separately. This should allow things like Netscape 16049 form signing output easier to verify. 16050 16051 *Steve Henson* 16052 16053 * Fix the ASN1 encoding of tags using the 'long form'. 16054 16055 *Steve Henson* 16056 16057 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 16058 STRING types. These convert content octets to and from the 16059 underlying type. The actual tag and length octets are 16060 already assumed to have been read in and checked. These 16061 are needed because all other string types have virtually 16062 identical handling apart from the tag. By having versions 16063 of the ASN1 functions that just operate on content octets 16064 IMPLICIT tagging can be handled properly. It also allows 16065 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 16066 and ASN1_INTEGER are identical apart from the tag. 16067 16068 *Steve Henson* 16069 16070 * Change the handling of OID objects as follows: 16071 16072 - New object identifiers are inserted in objects.txt, following 16073 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 16074 - objects.pl is used to process obj_mac.num and create a new 16075 obj_mac.h. 16076 - obj_dat.pl is used to create a new obj_dat.h, using the data in 16077 obj_mac.h. 16078 16079 This is currently kind of a hack, and the perl code in objects.pl 16080 isn't very elegant, but it works as I intended. The simplest way 16081 to check that it worked correctly is to look in obj_dat.h and 16082 check the array nid_objs and make sure the objects haven't moved 16083 around (this is important!). Additions are OK, as well as 16084 consistent name changes. 16085 16086 *Richard Levitte* 16087 16088 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 16089 16090 *Bodo Moeller* 16091 16092 * Addition of the command line parameter '-rand file' to 'openssl req'. 16093 The given file adds to whatever has already been seeded into the 16094 random pool through the RANDFILE configuration file option or 16095 environment variable, or the default random state file. 16096 16097 *Richard Levitte* 16098 16099 * mkstack.pl now sorts each macro group into lexical order. 16100 Previously the output order depended on the order the files 16101 appeared in the directory, resulting in needless rewriting 16102 of safestack.h . 16103 16104 *Steve Henson* 16105 16106 * Patches to make OpenSSL compile under Win32 again. Mostly 16107 work arounds for the VC++ problem that it treats func() as 16108 func(void). Also stripped out the parts of mkdef.pl that 16109 added extra typesafe functions: these no longer exist. 16110 16111 *Steve Henson* 16112 16113 * Reorganisation of the stack code. The macros are now all 16114 collected in safestack.h . Each macro is defined in terms of 16115 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 16116 DEBUG_SAFESTACK is now handled in terms of function casts, 16117 this has the advantage of retaining type safety without the 16118 use of additional functions. If DEBUG_SAFESTACK is not defined 16119 then the non typesafe macros are used instead. Also modified the 16120 mkstack.pl script to handle the new form. Needs testing to see 16121 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 16122 the default if no major problems. Similar behaviour for ASN1_SET_OF 16123 and PKCS12_STACK_OF. 16124 16125 *Steve Henson* 16126 16127 * When some versions of IIS use the 'NET' form of private key the 16128 key derivation algorithm is different. Normally MD5(password) is 16129 used as a 128 bit RC4 key. In the modified case 16130 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 16131 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 16132 as the old Netscape_RSA functions except they have an additional 16133 'sgckey' parameter which uses the modified algorithm. Also added 16134 an -sgckey command line option to the rsa utility. Thanks to 16135 Adrian Peck <bertie@ncipher.com> for posting details of the modified 16136 algorithm to openssl-dev. 16137 16138 *Steve Henson* 16139 16140 * The evp_local.h macros were using 'c.##kname' which resulted in 16141 invalid expansion on some systems (SCO 5.0.5 for example). 16142 Corrected to 'c.kname'. 16143 16144 *Phillip Porch <root@theporch.com>* 16145 16146 * New X509_get1_email() and X509_REQ_get1_email() functions that return 16147 a STACK of email addresses from a certificate or request, these look 16148 in the subject name and the subject alternative name extensions and 16149 omit any duplicate addresses. 16150 16151 *Steve Henson* 16152 16153 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 16154 This makes DSA verification about 2 % faster. 16155 16156 *Bodo Moeller* 16157 16158 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 16159 (meaning that now 2^5 values will be precomputed, which is only 4 KB 16160 plus overhead for 1024 bit moduli). 16161 This makes exponentiations about 0.5 % faster for 1024 bit 16162 exponents (as measured by "openssl speed rsa2048"). 16163 16164 *Bodo Moeller* 16165 16166 * Rename memory handling macros to avoid conflicts with other 16167 software: 16168 Malloc => OPENSSL_malloc 16169 Malloc_locked => OPENSSL_malloc_locked 16170 Realloc => OPENSSL_realloc 16171 Free => OPENSSL_free 16172 16173 *Richard Levitte* 16174 16175 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16176 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16177 16178 *Bodo Moeller* 16179 16180 * CygWin32 support. 16181 16182 *John Jarvie <jjarvie@newsguy.com>* 16183 16184 * The type-safe stack code has been rejigged. It is now only compiled 16185 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16186 by default all type-specific stack functions are "#define"d back to 16187 standard stack functions. This results in more streamlined output 16188 but retains the type-safety checking possibilities of the original 16189 approach. 16190 16191 *Geoff Thorpe* 16192 16193 * The STACK code has been cleaned up, and certain type declarations 16194 that didn't make a lot of sense have been brought in line. This has 16195 also involved a cleanup of sorts in safestack.h to more correctly 16196 map type-safe stack functions onto their plain stack counterparts. 16197 This work has also resulted in a variety of "const"ifications of 16198 lots of the code, especially `_cmp` operations which should normally 16199 be prototyped with "const" parameters anyway. 16200 16201 *Geoff Thorpe* 16202 16203 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16204 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16205 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16206 where all of 'md' is used each time the PRNG is used, but 'state' 16207 is used only indexed by a cyclic counter. As entropy may not be 16208 well distributed from the beginning, 'md' is important as a 16209 chaining variable. However, the output function chains only half 16210 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16211 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16212 in all of 'state' being rewritten, with the new values depending 16213 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16214 16215 *Bodo Moeller* 16216 16217 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16218 the handshake is continued after ssl_verify_cert_chain(); 16219 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16220 can lead to 'unexplainable' connection aborts later. 16221 16222 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16223 16224 * Major EVP API cipher revision. 16225 Add hooks for extra EVP features. This allows various cipher 16226 parameters to be set in the EVP interface. Support added for variable 16227 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16228 setting of RC2 and RC5 parameters. 16229 16230 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16231 ciphers. 16232 16233 Remove lots of duplicated code from the EVP library. For example *every* 16234 cipher init() function handles the 'iv' in the same way according to the 16235 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16236 for CFB and OFB modes they zero ctx->num. 16237 16238 New functionality allows removal of S/MIME code RC2 hack. 16239 16240 Most of the routines have the same form and so can be declared in terms 16241 of macros. 16242 16243 By shifting this to the top level EVP_CipherInit() it can be removed from 16244 all individual ciphers. If the cipher wants to handle IVs or keys 16245 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16246 flags. 16247 16248 Change lots of functions like EVP_EncryptUpdate() to now return a 16249 value: although software versions of the algorithms cannot fail 16250 any installed hardware versions can. 16251 16252 *Steve Henson* 16253 16254 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16255 this option is set, tolerate broken clients that send the negotiated 16256 protocol version number instead of the requested protocol version 16257 number. 16258 16259 *Bodo Moeller* 16260 16261 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16262 i.e. non-zero for export ciphersuites, zero otherwise. 16263 Previous versions had this flag inverted, inconsistent with 16264 rsa_tmp_cb (..._TMP_RSA_CB). 16265 16266 *Bodo Moeller; problem reported by Amit Chopra* 16267 16268 * Add missing DSA library text string. Work around for some IIS 16269 key files with invalid SEQUENCE encoding. 16270 16271 *Steve Henson* 16272 16273 * Add a document (doc/standards.txt) that list all kinds of standards 16274 and so on that are implemented in OpenSSL. 16275 16276 *Richard Levitte* 16277 16278 * Enhance c_rehash script. Old version would mishandle certificates 16279 with the same subject name hash and wouldn't handle CRLs at all. 16280 Added -fingerprint option to crl utility, to support new c_rehash 16281 features. 16282 16283 *Steve Henson* 16284 16285 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16286 16287 *Ulf Möller* 16288 16289 * Fix for SSL server purpose checking. Server checking was 16290 rejecting certificates which had extended key usage present 16291 but no ssl client purpose. 16292 16293 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16294 16295 * Make PKCS#12 code work with no password. The PKCS#12 spec 16296 is a little unclear about how a blank password is handled. 16297 Since the password in encoded as a BMPString with terminating 16298 double NULL a zero length password would end up as just the 16299 double NULL. However no password at all is different and is 16300 handled differently in the PKCS#12 key generation code. NS 16301 treats a blank password as zero length. MSIE treats it as no 16302 password on export: but it will try both on import. We now do 16303 the same: PKCS12_parse() tries zero length and no password if 16304 the password is set to "" or NULL (NULL is now a valid password: 16305 it wasn't before) as does the pkcs12 application. 16306 16307 *Steve Henson* 16308 16309 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16310 perror when PEM_read_bio_X509_REQ fails, the error message must 16311 be obtained from the error queue. 16312 16313 *Bodo Moeller* 16314 16315 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16316 it in ERR_remove_state if appropriate, and change ERR_get_state 16317 accordingly to avoid race conditions (this is necessary because 16318 thread_hash is no longer constant once set). 16319 16320 *Bodo Moeller* 16321 16322 * Bugfix for linux-elf makefile.one. 16323 16324 *Ulf Möller* 16325 16326 * RSA_get_default_method() will now cause a default 16327 RSA_METHOD to be chosen if one doesn't exist already. 16328 Previously this was only set during a call to RSA_new() 16329 or RSA_new_method(NULL) meaning it was possible for 16330 RSA_get_default_method() to return NULL. 16331 16332 *Geoff Thorpe* 16333 16334 * Added native name translation to the existing DSO code 16335 that will convert (if the flag to do so is set) filenames 16336 that are sufficiently small and have no path information 16337 into a canonical native form. Eg. "blah" converted to 16338 "libblah.so" or "blah.dll" etc. 16339 16340 *Geoff Thorpe* 16341 16342 * New function ERR_error_string_n(e, buf, len) which is like 16343 ERR_error_string(e, buf), but writes at most 'len' bytes 16344 including the 0 terminator. For ERR_error_string_n, 'buf' 16345 may not be NULL. 16346 16347 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16348 16349 * CONF library reworked to become more general. A new CONF 16350 configuration file reader "class" is implemented as well as a 16351 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16352 old `CONF_*` functions are still there, but are reimplemented to 16353 work in terms of the new functions. Also, a set of functions 16354 to handle the internal storage of the configuration data is 16355 provided to make it easier to write new configuration file 16356 reader "classes" (I can definitely see something reading a 16357 configuration file in XML format, for example), called `_CONF_*`, 16358 or "the configuration storage API"... 16359 16360 The new configuration file reading functions are: 16361 16362 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16363 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16364 16365 NCONF_default, NCONF_WIN32 16366 16367 NCONF_dump_fp, NCONF_dump_bio 16368 16369 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16370 NCONF_new creates a new CONF object. This works in the same way 16371 as other interfaces in OpenSSL, like the BIO interface. 16372 `NCONF_dump_*` dump the internal storage of the configuration file, 16373 which is useful for debugging. All other functions take the same 16374 arguments as the old `CONF_*` functions with the exception of the 16375 first that must be a `CONF *` instead of a `LHASH *`. 16376 16377 To make it easier to use the new classes with the old `CONF_*` functions, 16378 the function CONF_set_default_method is provided. 16379 16380 *Richard Levitte* 16381 16382 * Add '-tls1' option to 'openssl ciphers', which was already 16383 mentioned in the documentation but had not been implemented. 16384 (This option is not yet really useful because even the additional 16385 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16386 16387 *Bodo Moeller* 16388 16389 * Initial DSO code added into libcrypto for letting OpenSSL (and 16390 OpenSSL-based applications) load shared libraries and bind to 16391 them in a portable way. 16392 16393 *Geoff Thorpe, with contributions from Richard Levitte* 16394 16395### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16396 16397 * Make sure _lrotl and _lrotr are only used with MSVC. 16398 16399 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16400 (the default implementation of RAND_status). 16401 16402 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16403 to '-clrext' (= clear extensions), as intended and documented. 16404 *Bodo Moeller; inconsistency pointed out by Michael Attili 16405 <attili@amaxo.com>* 16406 16407 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16408 was larger than the MD block size. 16409 16410 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16411 16412 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16413 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16414 using the passed key: if the passed key was a private key the result 16415 of X509_print(), for example, would be to print out all the private key 16416 components. 16417 16418 *Steve Henson* 16419 16420 * des_quad_cksum() byte order bug fix. 16421 *Ulf Möller, using the problem description in krb4-0.9.7, where 16422 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16423 16424 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16425 discouraged. 16426 16427 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16428 16429 * For easily testing in shell scripts whether some command 16430 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16431 returns with exit code 0 iff no command of the given name is available. 16432 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16433 the output goes to stdout and nothing is printed to stderr. 16434 Additional arguments are always ignored. 16435 16436 Since for each cipher there is a command of the same name, 16437 the 'no-cipher' compilation switches can be tested this way. 16438 16439 ('openssl no-XXX' is not able to detect pseudo-commands such 16440 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16441 16442 *Bodo Moeller* 16443 16444 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16445 16446 *Bodo Moeller* 16447 16448 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16449 is set; it will be thrown away anyway because each handshake creates 16450 its own key. 16451 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16452 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16453 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16454 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16455 16456 *Bodo Moeller* 16457 16458 * New s_client option -ign_eof: EOF at stdin is ignored, and 16459 'Q' and 'R' lose their special meanings (quit/renegotiate). 16460 This is part of what -quiet does; unlike -quiet, -ign_eof 16461 does not suppress any output. 16462 16463 *Richard Levitte* 16464 16465 * Add compatibility options to the purpose and trust code. The 16466 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16467 accepts a certificate or CA, this was the previous behaviour, 16468 with all the associated security issues. 16469 16470 X509_TRUST_COMPAT is the old trust behaviour: only and 16471 automatically trust self signed roots in certificate store. A 16472 new trust setting X509_TRUST_DEFAULT is used to specify that 16473 a purpose has no associated trust setting and it should instead 16474 use the value in the default purpose. 16475 16476 *Steve Henson* 16477 16478 * Fix the PKCS#8 DSA private key code so it decodes keys again 16479 and fix a memory leak. 16480 16481 *Steve Henson* 16482 16483 * In util/mkerr.pl (which implements 'make errors'), preserve 16484 reason strings from the previous version of the .c file, as 16485 the default to have only downcase letters (and digits) in 16486 automatically generated reasons codes is not always appropriate. 16487 16488 *Bodo Moeller* 16489 16490 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16491 using strerror. Previously, ERR_reason_error_string() returned 16492 library names as reason strings for SYSerr; but SYSerr is a special 16493 case where small numbers are errno values, not library numbers. 16494 16495 *Bodo Moeller* 16496 16497 * Add '-dsaparam' option to 'openssl dhparam' application. This 16498 converts DSA parameters into DH parameters. (When creating parameters, 16499 DSA_generate_parameters is used.) 16500 16501 *Bodo Moeller* 16502 16503 * Include 'length' (recommended exponent length) in C code generated 16504 by 'openssl dhparam -C'. 16505 16506 *Bodo Moeller* 16507 16508 * The second argument to set_label in perlasm was already being used 16509 so couldn't be used as a "file scope" flag. Moved to third argument 16510 which was free. 16511 16512 *Steve Henson* 16513 16514 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16515 instead of RAND_bytes for encryption IVs and salts. 16516 16517 *Bodo Moeller* 16518 16519 * Include RAND_status() into RAND_METHOD instead of implementing 16520 it only for md_rand.c Otherwise replacing the PRNG by calling 16521 RAND_set_rand_method would be impossible. 16522 16523 *Bodo Moeller* 16524 16525 * Don't let DSA_generate_key() enter an infinite loop if the random 16526 number generation fails. 16527 16528 *Bodo Moeller* 16529 16530 * New 'rand' application for creating pseudo-random output. 16531 16532 *Bodo Moeller* 16533 16534 * Added configuration support for Linux/IA64 16535 16536 *Rolf Haberrecker <rolf@suse.de>* 16537 16538 * Assembler module support for Mingw32. 16539 16540 *Ulf Möller* 16541 16542 * Shared library support for HPUX (in shlib/). 16543 16544 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16545 16546 * Shared library support for Solaris gcc. 16547 16548 *Lutz Behnke <behnke@trustcenter.de>* 16549 16550### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16551 16552 * PKCS7_encrypt() was adding text MIME headers twice because they 16553 were added manually and by SMIME_crlf_copy(). 16554 16555 *Steve Henson* 16556 16557 * In bntest.c don't call BN_rand with zero bits argument. 16558 16559 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16560 16561 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16562 case was implemented. This caused BN_div_recp() to fail occasionally. 16563 16564 *Ulf Möller* 16565 16566 * Add an optional second argument to the set_label() in the perl 16567 assembly language builder. If this argument exists and is set 16568 to 1 it signals that the assembler should use a symbol whose 16569 scope is the entire file, not just the current function. This 16570 is needed with MASM which uses the format label:: for this scope. 16571 16572 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16573 16574 * Change the ASN1 types so they are typedefs by default. Before 16575 almost all types were #define'd to ASN1_STRING which was causing 16576 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16577 for example. 16578 16579 *Steve Henson* 16580 16581 * Change names of new functions to the new get1/get0 naming 16582 convention: After 'get1', the caller owns a reference count 16583 and has to call `..._free`; 'get0' returns a pointer to some 16584 data structure without incrementing reference counters. 16585 (Some of the existing 'get' functions increment a reference 16586 counter, some don't.) 16587 Similarly, 'set1' and 'add1' functions increase reference 16588 counters or duplicate objects. 16589 16590 *Steve Henson* 16591 16592 * Allow for the possibility of temp RSA key generation failure: 16593 the code used to assume it always worked and crashed on failure. 16594 16595 *Steve Henson* 16596 16597 * Fix potential buffer overrun problem in BIO_printf(). 16598 *Ulf Möller, using public domain code by Patrick Powell; problem 16599 pointed out by David Sacerdote <das33@cornell.edu>* 16600 16601 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16602 RAND_egd() and RAND_status(). In the command line application, 16603 the EGD socket can be specified like a seed file using RANDFILE 16604 or -rand. 16605 16606 *Ulf Möller* 16607 16608 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16609 Some CAs (e.g. Verisign) distribute certificates in this form. 16610 16611 *Steve Henson* 16612 16613 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16614 list to exclude them. This means that no special compilation option 16615 is needed to use anonymous DH: it just needs to be included in the 16616 cipher list. 16617 16618 *Steve Henson* 16619 16620 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16621 EVP_MD_type. The old functionality is available in a new macro called 16622 EVP_MD_md(). Change code that uses it and update docs. 16623 16624 *Steve Henson* 16625 16626 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16627 where the `void *` argument is replaced by a function pointer argument. 16628 Previously `void *` was abused to point to functions, which works on 16629 many platforms, but is not correct. As these functions are usually 16630 called by macros defined in OpenSSL header files, most source code 16631 should work without changes. 16632 16633 *Richard Levitte* 16634 16635 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16636 sections with information on -D... compiler switches used for 16637 compiling the library so that applications can see them. To enable 16638 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16639 must be defined. E.g., 16640 #define OPENSSL_ALGORITHM_DEFINES 16641 #include <openssl/opensslconf.h> 16642 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16643 16644 *Richard Levitte, Ulf and Bodo Möller* 16645 16646 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16647 record layer. 16648 16649 *Bodo Moeller* 16650 16651 * Change the 'other' type in certificate aux info to a STACK_OF 16652 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16653 the required ASN1 format: arbitrary types determined by an OID. 16654 16655 *Steve Henson* 16656 16657 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16658 argument to 'req'. This is not because the function is newer or 16659 better than others it just uses the work 'NEW' in the certificate 16660 request header lines. Some software needs this. 16661 16662 *Steve Henson* 16663 16664 * Reorganise password command line arguments: now passwords can be 16665 obtained from various sources. Delete the PEM_cb function and make 16666 it the default behaviour: i.e. if the callback is NULL and the 16667 usrdata argument is not NULL interpret it as a null terminated pass 16668 phrase. If usrdata and the callback are NULL then the pass phrase 16669 is prompted for as usual. 16670 16671 *Steve Henson* 16672 16673 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16674 the support is automatically enabled. The resulting binaries will 16675 autodetect the card and use it if present. 16676 16677 *Ben Laurie and Compaq Inc.* 16678 16679 * Work around for Netscape hang bug. This sends certificate request 16680 and server done in one record. Since this is perfectly legal in the 16681 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16682 the bugs/SSLv3 entry for more info. 16683 16684 *Steve Henson* 16685 16686 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16687 16688 *Andy Polyakov* 16689 16690 * Add -rand argument to smime and pkcs12 applications and read/write 16691 of seed file. 16692 16693 *Steve Henson* 16694 16695 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16696 16697 *Bodo Moeller* 16698 16699 * Add command line password options to the remaining applications. 16700 16701 *Steve Henson* 16702 16703 * Bug fix for BN_div_recp() for numerators with an even number of 16704 bits. 16705 16706 *Ulf Möller* 16707 16708 * More tests in bntest.c, and changed test_bn output. 16709 16710 *Ulf Möller* 16711 16712 * ./config recognizes MacOS X now. 16713 16714 *Andy Polyakov* 16715 16716 * Bug fix for BN_div() when the first words of num and divisor are 16717 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16718 16719 *Ulf Möller* 16720 16721 * Add support for various broken PKCS#8 formats, and command line 16722 options to produce them. 16723 16724 *Steve Henson* 16725 16726 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16727 get temporary BIGNUMs from a BN_CTX. 16728 16729 *Ulf Möller* 16730 16731 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16732 for p == 0. 16733 16734 *Ulf Möller* 16735 16736 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16737 include a #define from the old name to the new. The original intent 16738 was that statically linked binaries could for example just call 16739 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16740 link with digests. This never worked because SSLeay_add_all_digests() 16741 and SSLeay_add_all_ciphers() were in the same source file so calling 16742 one would link with the other. They are now in separate source files. 16743 16744 *Steve Henson* 16745 16746 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16747 16748 *Steve Henson* 16749 16750 * Use a less unusual form of the Miller-Rabin primality test (it used 16751 a binary algorithm for exponentiation integrated into the Miller-Rabin 16752 loop, our standard modexp algorithms are faster). 16753 16754 *Bodo Moeller* 16755 16756 * Support for the EBCDIC character set completed. 16757 16758 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16759 16760 * Source code cleanups: use const where appropriate, eliminate casts, 16761 use `void *` instead of `char *` in lhash. 16762 16763 *Ulf Möller* 16764 16765 * Bugfix: ssl3_send_server_key_exchange was not restartable 16766 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16767 this the server could overwrite ephemeral keys that the client 16768 has already seen). 16769 16770 *Bodo Moeller* 16771 16772 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16773 using 50 iterations of the Rabin-Miller test. 16774 16775 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16776 iterations of the Rabin-Miller test as required by the appendix 16777 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16778 As BN_is_prime_fasttest includes trial division, DSA parameter 16779 generation becomes much faster. 16780 16781 This implies a change for the callback functions in DSA_is_prime 16782 and DSA_generate_parameters: The callback function is called once 16783 for each positive witness in the Rabin-Miller test, not just 16784 occasionally in the inner loop; and the parameters to the 16785 callback function now provide an iteration count for the outer 16786 loop rather than for the current invocation of the inner loop. 16787 DSA_generate_parameters additionally can call the callback 16788 function with an 'iteration count' of -1, meaning that a 16789 candidate has passed the trial division test (when q is generated 16790 from an application-provided seed, trial division is skipped). 16791 16792 *Bodo Moeller* 16793 16794 * New function BN_is_prime_fasttest that optionally does trial 16795 division before starting the Rabin-Miller test and has 16796 an additional BN_CTX * argument (whereas BN_is_prime always 16797 has to allocate at least one BN_CTX). 16798 'callback(1, -1, cb_arg)' is called when a number has passed the 16799 trial division stage. 16800 16801 *Bodo Moeller* 16802 16803 * Fix for bug in CRL encoding. The validity dates weren't being handled 16804 as ASN1_TIME. 16805 16806 *Steve Henson* 16807 16808 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 16809 16810 *Steve Henson* 16811 16812 * New function BN_pseudo_rand(). 16813 16814 *Ulf Möller* 16815 16816 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 16817 bignum version of BN_from_montgomery() with the working code from 16818 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 16819 the comments. 16820 16821 *Ulf Möller* 16822 16823 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 16824 made it impossible to use the same SSL_SESSION data structure in 16825 SSL2 clients in multiple threads. 16826 16827 *Bodo Moeller* 16828 16829 * The return value of RAND_load_file() no longer counts bytes obtained 16830 by stat(). RAND_load_file(..., -1) is new and uses the complete file 16831 to seed the PRNG (previously an explicit byte count was required). 16832 16833 *Ulf Möller, Bodo Möller* 16834 16835 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 16836 used `char *` instead of `void *` and had casts all over the place. 16837 16838 *Steve Henson* 16839 16840 * Make BN_generate_prime() return NULL on error if ret!=NULL. 16841 16842 *Ulf Möller* 16843 16844 * Retain source code compatibility for BN_prime_checks macro: 16845 BN_is_prime(..., BN_prime_checks, ...) now uses 16846 BN_prime_checks_for_size to determine the appropriate number of 16847 Rabin-Miller iterations. 16848 16849 *Ulf Möller* 16850 16851 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 16852 DH_CHECK_P_NOT_SAFE_PRIME. 16853 (Check if this is true? OpenPGP calls them "strong".) 16854 16855 *Ulf Möller* 16856 16857 * Merge the functionality of "dh" and "gendh" programs into a new program 16858 "dhparam". The old programs are retained for now but will handle DH keys 16859 (instead of parameters) in future. 16860 16861 *Steve Henson* 16862 16863 * Make the ciphers, s_server and s_client programs check the return values 16864 when a new cipher list is set. 16865 16866 *Steve Henson* 16867 16868 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 16869 ciphers. Before when the 56bit ciphers were enabled the sorting was 16870 wrong. 16871 16872 The syntax for the cipher sorting has been extended to support sorting by 16873 cipher-strength (using the strength_bits hard coded in the tables). 16874 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 16875 16876 Fix a bug in the cipher-command parser: when supplying a cipher command 16877 string with an "undefined" symbol (neither command nor alphanumeric 16878 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 16879 an error is flagged. 16880 16881 Due to the strength-sorting extension, the code of the 16882 ssl_create_cipher_list() function was completely rearranged. I hope that 16883 the readability was also increased :-) 16884 16885 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 16886 16887 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 16888 for the first serial number and places 2 in the serial number file. This 16889 avoids problems when the root CA is created with serial number zero and 16890 the first user certificate has the same issuer name and serial number 16891 as the root CA. 16892 16893 *Steve Henson* 16894 16895 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 16896 the new code. Add documentation for this stuff. 16897 16898 *Steve Henson* 16899 16900 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 16901 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 16902 structures and behave in an analogous way to the X509v3 functions: 16903 they shouldn't be called directly but wrapper functions should be used 16904 instead. 16905 16906 So we also now have some wrapper functions that call the X509at functions 16907 when passed certificate requests. (TO DO: similar things can be done with 16908 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 16909 things. Some of these need some d2i or i2d and print functionality 16910 because they handle more complex structures.) 16911 16912 *Steve Henson* 16913 16914 * Add missing #ifndefs that caused missing symbols when building libssl 16915 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 16916 NO_RSA in `ssl/s2*.c`. 16917 16918 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 16919 16920 * Precautions against using the PRNG uninitialized: RAND_bytes() now 16921 has a return value which indicates the quality of the random data 16922 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 16923 error queue. New function RAND_pseudo_bytes() generates output that is 16924 guaranteed to be unique but not unpredictable. RAND_add is like 16925 RAND_seed, but takes an extra argument for an entropy estimate 16926 (RAND_seed always assumes full entropy). 16927 16928 *Ulf Möller* 16929 16930 * Do more iterations of Rabin-Miller probable prime test (specifically, 16931 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 16932 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 16933 in crypto/bn/bn_prime.c for the complete table). This guarantees a 16934 false-positive rate of at most 2^-80 for random input. 16935 16936 *Bodo Moeller* 16937 16938 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 16939 16940 *Bodo Moeller* 16941 16942 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 16943 in the 0.9.5 release), this returns the chain 16944 from an X509_CTX structure with a dup of the stack and all 16945 the X509 reference counts upped: so the stack will exist 16946 after X509_CTX_cleanup() has been called. Modify pkcs12.c 16947 to use this. 16948 16949 Also make SSL_SESSION_print() print out the verify return 16950 code. 16951 16952 *Steve Henson* 16953 16954 * Add manpage for the pkcs12 command. Also change the default 16955 behaviour so MAC iteration counts are used unless the new 16956 -nomaciter option is used. This improves file security and 16957 only older versions of MSIE (4.0 for example) need it. 16958 16959 *Steve Henson* 16960 16961 * Honor the no-xxx Configure options when creating .DEF files. 16962 16963 *Ulf Möller* 16964 16965 * Add PKCS#10 attributes to field table: challengePassword, 16966 unstructuredName and unstructuredAddress. These are taken from 16967 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 16968 international characters are used. 16969 16970 More changes to X509_ATTRIBUTE code: allow the setting of types 16971 based on strings. Remove the 'loc' parameter when adding 16972 attributes because these will be a SET OF encoding which is sorted 16973 in ASN1 order. 16974 16975 *Steve Henson* 16976 16977 * Initial changes to the 'req' utility to allow request generation 16978 automation. This will allow an application to just generate a template 16979 file containing all the field values and have req construct the 16980 request. 16981 16982 Initial support for X509_ATTRIBUTE handling. Stacks of these are 16983 used all over the place including certificate requests and PKCS#7 16984 structures. They are currently handled manually where necessary with 16985 some primitive wrappers for PKCS#7. The new functions behave in a 16986 manner analogous to the X509 extension functions: they allow 16987 attributes to be looked up by NID and added. 16988 16989 Later something similar to the X509V3 code would be desirable to 16990 automatically handle the encoding, decoding and printing of the 16991 more complex types. The string types like challengePassword can 16992 be handled by the string table functions. 16993 16994 Also modified the multi byte string table handling. Now there is 16995 a 'global mask' which masks out certain types. The table itself 16996 can use the flag STABLE_NO_MASK to ignore the mask setting: this 16997 is useful when for example there is only one permissible type 16998 (as in countryName) and using the mask might result in no valid 16999 types at all. 17000 17001 *Steve Henson* 17002 17003 * Clean up 'Finished' handling, and add functions SSL_get_finished and 17004 SSL_get_peer_finished to allow applications to obtain the latest 17005 Finished messages sent to the peer or expected from the peer, 17006 respectively. (SSL_get_peer_finished is usually the Finished message 17007 actually received from the peer, otherwise the protocol will be aborted.) 17008 17009 As the Finished message are message digests of the complete handshake 17010 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 17011 be used for external authentication procedures when the authentication 17012 provided by SSL/TLS is not desired or is not enough. 17013 17014 *Bodo Moeller* 17015 17016 * Enhanced support for Alpha Linux is added. Now ./config checks if 17017 the host supports BWX extension and if Compaq C is present on the 17018 $PATH. Just exploiting of the BWX extension results in 20-30% 17019 performance kick for some algorithms, e.g. DES and RC4 to mention 17020 a couple. Compaq C in turn generates ~20% faster code for MD5 and 17021 SHA1. 17022 17023 *Andy Polyakov* 17024 17025 * Add support for MS "fast SGC". This is arguably a violation of the 17026 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 17027 weak crypto and after checking the certificate is SGC a second one 17028 with strong crypto. MS SGC stops the first handshake after receiving 17029 the server certificate message and sends a second client hello. Since 17030 a server will typically do all the time consuming operations before 17031 expecting any further messages from the client (server key exchange 17032 is the most expensive) there is little difference between the two. 17033 17034 To get OpenSSL to support MS SGC we have to permit a second client 17035 hello message after we have sent server done. In addition we have to 17036 reset the MAC if we do get this second client hello. 17037 17038 *Steve Henson* 17039 17040 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 17041 if a DER encoded private key is RSA or DSA traditional format. Changed 17042 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 17043 format DER encoded private key. Newer code should use PKCS#8 format which 17044 has the key type encoded in the ASN1 structure. Added DER private key 17045 support to pkcs8 application. 17046 17047 *Steve Henson* 17048 17049 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 17050 ciphersuites has been selected (as required by the SSL 3/TLS 1 17051 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 17052 is set, we interpret this as a request to violate the specification 17053 (the worst that can happen is a handshake failure, and 'correct' 17054 behaviour would result in a handshake failure anyway). 17055 17056 *Bodo Moeller* 17057 17058 * In SSL_CTX_add_session, take into account that there might be multiple 17059 SSL_SESSION structures with the same session ID (e.g. when two threads 17060 concurrently obtain them from an external cache). 17061 The internal cache can handle only one SSL_SESSION with a given ID, 17062 so if there's a conflict, we now throw out the old one to achieve 17063 consistency. 17064 17065 *Bodo Moeller* 17066 17067 * Add OIDs for idea and blowfish in CBC mode. This will allow both 17068 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 17069 some routines that use cipher OIDs: some ciphers do not have OIDs 17070 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 17071 example. 17072 17073 *Steve Henson* 17074 17075 * Simplify the trust setting structure and code. Now we just have 17076 two sequences of OIDs for trusted and rejected settings. These will 17077 typically have values the same as the extended key usage extension 17078 and any application specific purposes. 17079 17080 The trust checking code now has a default behaviour: it will just 17081 check for an object with the same NID as the passed id. Functions can 17082 be provided to override either the default behaviour or the behaviour 17083 for a given id. SSL client, server and email already have functions 17084 in place for compatibility: they check the NID and also return "trusted" 17085 if the certificate is self signed. 17086 17087 *Steve Henson* 17088 17089 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 17090 traditional format into an EVP_PKEY structure. 17091 17092 *Steve Henson* 17093 17094 * Add a password callback function PEM_cb() which either prompts for 17095 a password if usr_data is NULL or otherwise assumes it is a null 17096 terminated password. Allow passwords to be passed on command line 17097 environment or config files in a few more utilities. 17098 17099 *Steve Henson* 17100 17101 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 17102 keys. Add some short names for PKCS#8 PBE algorithms and allow them 17103 to be specified on the command line for the pkcs8 and pkcs12 utilities. 17104 Update documentation. 17105 17106 *Steve Henson* 17107 17108 * Support for ASN1 "NULL" type. This could be handled before by using 17109 ASN1_TYPE but there wasn't any function that would try to read a NULL 17110 and produce an error if it couldn't. For compatibility we also have 17111 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 17112 don't allocate anything because they don't need to. 17113 17114 *Steve Henson* 17115 17116 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 17117 for details. 17118 17119 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 17120 17121 * Rebuild of the memory allocation routines used by OpenSSL code and 17122 possibly others as well. The purpose is to make an interface that 17123 provide hooks so anyone can build a separate set of allocation and 17124 deallocation routines to be used by OpenSSL, for example memory 17125 pool implementations, or something else, which was previously hard 17126 since Malloc(), Realloc() and Free() were defined as macros having 17127 the values malloc, realloc and free, respectively (except for Win32 17128 compilations). The same is provided for memory debugging code. 17129 OpenSSL already comes with functionality to find memory leaks, but 17130 this gives people a chance to debug other memory problems. 17131 17132 With these changes, a new set of functions and macros have appeared: 17133 17134 CRYPTO_set_mem_debug_functions() [F] 17135 CRYPTO_get_mem_debug_functions() [F] 17136 CRYPTO_dbg_set_options() [F] 17137 CRYPTO_dbg_get_options() [F] 17138 CRYPTO_malloc_debug_init() [M] 17139 17140 The memory debug functions are NULL by default, unless the library 17141 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 17142 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 17143 gives the standard debugging functions that come with OpenSSL) or 17144 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 17145 provided by the library user) must be used. When the standard 17146 debugging functions are used, CRYPTO_dbg_set_options can be used to 17147 request additional information: 17148 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 17149 the CRYPTO_MDEBUG_xxx macro when compiling the library. 17150 17151 Also, things like CRYPTO_set_mem_functions will always give the 17152 expected result (the new set of functions is used for allocation 17153 and deallocation) at all times, regardless of platform and compiler 17154 options. 17155 17156 To finish it up, some functions that were never use in any other 17157 way than through macros have a new API and new semantic: 17158 17159 CRYPTO_dbg_malloc() 17160 CRYPTO_dbg_realloc() 17161 CRYPTO_dbg_free() 17162 17163 All macros of value have retained their old syntax. 17164 17165 *Richard Levitte and Bodo Moeller* 17166 17167 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17168 ordering of SMIMECapabilities wasn't in "strength order" and there 17169 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17170 algorithm. 17171 17172 *Steve Henson* 17173 17174 * Some ASN1 types with illegal zero length encoding (INTEGER, 17175 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17176 17177 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17178 17179 * Merge in my S/MIME library for OpenSSL. This provides a simple 17180 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17181 functionality to handle multipart/signed properly) and a utility 17182 called 'smime' to call all this stuff. This is based on code I 17183 originally wrote for Celo who have kindly allowed it to be 17184 included in OpenSSL. 17185 17186 *Steve Henson* 17187 17188 * Add variants des_set_key_checked and des_set_key_unchecked of 17189 des_set_key (aka des_key_sched). Global variable des_check_key 17190 decides which of these is called by des_set_key; this way 17191 des_check_key behaves as it always did, but applications and 17192 the library itself, which was buggy for des_check_key == 1, 17193 have a cleaner way to pick the version they need. 17194 17195 *Bodo Moeller* 17196 17197 * New function PKCS12_newpass() which changes the password of a 17198 PKCS12 structure. 17199 17200 *Steve Henson* 17201 17202 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17203 dynamic mix. In both cases the ids can be used as an index into the 17204 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17205 functions so they accept a list of the field values and the 17206 application doesn't need to directly manipulate the X509_TRUST 17207 structure. 17208 17209 *Steve Henson* 17210 17211 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17212 need initialising. 17213 17214 *Steve Henson* 17215 17216 * Modify the way the V3 extension code looks up extensions. This now 17217 works in a similar way to the object code: we have some "standard" 17218 extensions in a static table which is searched with OBJ_bsearch() 17219 and the application can add dynamic ones if needed. The file 17220 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17221 updated whenever a new extension is added to the core code and kept 17222 in ext_nid order. There is a simple program 'tabtest.c' which checks 17223 this. New extensions are not added too often so this file can readily 17224 be maintained manually. 17225 17226 There are two big advantages in doing things this way. The extensions 17227 can be looked up immediately and no longer need to be "added" using 17228 X509V3_add_standard_extensions(): this function now does nothing. 17229 Side note: I get *lots* of email saying the extension code doesn't 17230 work because people forget to call this function. 17231 Also no dynamic allocation is done unless new extensions are added: 17232 so if we don't add custom extensions there is no need to call 17233 X509V3_EXT_cleanup(). 17234 17235 *Steve Henson* 17236 17237 * Modify enc utility's salting as follows: make salting the default. Add a 17238 magic header, so unsalted files fail gracefully instead of just decrypting 17239 to garbage. This is because not salting is a big security hole, so people 17240 should be discouraged from doing it. 17241 17242 *Ben Laurie* 17243 17244 * Fixes and enhancements to the 'x509' utility. It allowed a message 17245 digest to be passed on the command line but it only used this 17246 parameter when signing a certificate. Modified so all relevant 17247 operations are affected by the digest parameter including the 17248 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17249 DSA key was used because it didn't fix the digest. 17250 17251 *Steve Henson* 17252 17253 * Initial certificate chain verify code. Currently tests the untrusted 17254 certificates for consistency with the verify purpose (which is set 17255 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17256 17257 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17258 this is because it will reject chains with invalid extensions whereas 17259 every previous version of OpenSSL and SSLeay made no checks at all. 17260 17261 Trust code: checks the root CA for the relevant trust settings. Trust 17262 settings have an initial value consistent with the verify purpose: e.g. 17263 if the verify purpose is for SSL client use it expects the CA to be 17264 trusted for SSL client use. However the default value can be changed to 17265 permit custom trust settings: one example of this would be to only trust 17266 certificates from a specific "secure" set of CAs. 17267 17268 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17269 which should be used for version portability: especially since the 17270 verify structure is likely to change more often now. 17271 17272 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17273 to set them. If not set then assume SSL clients will verify SSL servers 17274 and vice versa. 17275 17276 Two new options to the verify program: -untrusted allows a set of 17277 untrusted certificates to be passed in and -purpose which sets the 17278 intended purpose of the certificate. If a purpose is set then the 17279 new chain verify code is used to check extension consistency. 17280 17281 *Steve Henson* 17282 17283 * Support for the authority information access extension. 17284 17285 *Steve Henson* 17286 17287 * Modify RSA and DSA PEM read routines to transparently handle 17288 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17289 public keys in a format compatible with certificate 17290 SubjectPublicKeyInfo structures. Unfortunately there were already 17291 functions called *_PublicKey_* which used various odd formats so 17292 these are retained for compatibility: however the DSA variants were 17293 never in a public release so they have been deleted. Changed dsa/rsa 17294 utilities to handle the new format: note no releases ever handled public 17295 keys so we should be OK. 17296 17297 The primary motivation for this change is to avoid the same fiasco 17298 that dogs private keys: there are several incompatible private key 17299 formats some of which are standard and some OpenSSL specific and 17300 require various evil hacks to allow partial transparent handling and 17301 even then it doesn't work with DER formats. Given the option anything 17302 other than PKCS#8 should be dumped: but the other formats have to 17303 stay in the name of compatibility. 17304 17305 With public keys and the benefit of hindsight one standard format 17306 is used which works with EVP_PKEY, RSA or DSA structures: though 17307 it clearly returns an error if you try to read the wrong kind of key. 17308 17309 Added a -pubkey option to the 'x509' utility to output the public key. 17310 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17311 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17312 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17313 that do the same as the `EVP_PKEY_assign_*()` except they up the 17314 reference count of the added key (they don't "swallow" the 17315 supplied key). 17316 17317 *Steve Henson* 17318 17319 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17320 CRLs would fail if the file contained no certificates or no CRLs: 17321 added a new function to read in both types and return the number 17322 read: this means that if none are read it will be an error. The 17323 DER versions of the certificate and CRL reader would always fail 17324 because it isn't possible to mix certificates and CRLs in DER format 17325 without choking one or the other routine. Changed this to just read 17326 a certificate: this is the best we can do. Also modified the code 17327 in `apps/verify.c` to take notice of return codes: it was previously 17328 attempting to read in certificates from NULL pointers and ignoring 17329 any errors: this is one reason why the cert and CRL reader seemed 17330 to work. It doesn't check return codes from the default certificate 17331 routines: these may well fail if the certificates aren't installed. 17332 17333 *Steve Henson* 17334 17335 * Code to support otherName option in GeneralName. 17336 17337 *Steve Henson* 17338 17339 * First update to verify code. Change the verify utility 17340 so it warns if it is passed a self signed certificate: 17341 for consistency with the normal behaviour. X509_verify 17342 has been modified to it will now verify a self signed 17343 certificate if *exactly* the same certificate appears 17344 in the store: it was previously impossible to trust a 17345 single self signed certificate. This means that: 17346 openssl verify ss.pem 17347 now gives a warning about a self signed certificate but 17348 openssl verify -CAfile ss.pem ss.pem 17349 is OK. 17350 17351 *Steve Henson* 17352 17353 * For servers, store verify_result in SSL_SESSION data structure 17354 (and add it to external session representation). 17355 This is needed when client certificate verifications fails, 17356 but an application-provided verification callback (set by 17357 SSL_CTX_set_cert_verify_callback) allows accepting the session 17358 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17359 but returns 1): When the session is reused, we have to set 17360 ssl->verify_result to the appropriate error code to avoid 17361 security holes. 17362 17363 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17364 17365 * Fix a bug in the new PKCS#7 code: it didn't consider the 17366 case in PKCS7_dataInit() where the signed PKCS7 structure 17367 didn't contain any existing data because it was being created. 17368 17369 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17370 17371 * Add a salt to the key derivation routines in enc.c. This 17372 forms the first 8 bytes of the encrypted file. Also add a 17373 -S option to allow a salt to be input on the command line. 17374 17375 *Steve Henson* 17376 17377 * New function X509_cmp(). Oddly enough there wasn't a function 17378 to compare two certificates. We do this by working out the SHA1 17379 hash and comparing that. X509_cmp() will be needed by the trust 17380 code. 17381 17382 *Steve Henson* 17383 17384 * SSL_get1_session() is like SSL_get_session(), but increments 17385 the reference count in the SSL_SESSION returned. 17386 17387 *Geoff Thorpe <geoff@eu.c2.net>* 17388 17389 * Fix for 'req': it was adding a null to request attributes. 17390 Also change the X509_LOOKUP and X509_INFO code to handle 17391 certificate auxiliary information. 17392 17393 *Steve Henson* 17394 17395 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17396 the 'enc' command. 17397 17398 *Steve Henson* 17399 17400 * Add the possibility to add extra information to the memory leak 17401 detecting output, to form tracebacks, showing from where each 17402 allocation was originated: CRYPTO_push_info("constant string") adds 17403 the string plus current file name and line number to a per-thread 17404 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17405 is like calling CYRPTO_pop_info() until the stack is empty. 17406 Also updated memory leak detection code to be multi-thread-safe. 17407 17408 *Richard Levitte* 17409 17410 * Add options -text and -noout to pkcs7 utility and delete the 17411 encryption options which never did anything. Update docs. 17412 17413 *Steve Henson* 17414 17415 * Add options to some of the utilities to allow the pass phrase 17416 to be included on either the command line (not recommended on 17417 OSes like Unix) or read from the environment. Update the 17418 manpages and fix a few bugs. 17419 17420 *Steve Henson* 17421 17422 * Add a few manpages for some of the openssl commands. 17423 17424 *Steve Henson* 17425 17426 * Fix the -revoke option in ca. It was freeing up memory twice, 17427 leaking and not finding already revoked certificates. 17428 17429 *Steve Henson* 17430 17431 * Extensive changes to support certificate auxiliary information. 17432 This involves the use of X509_CERT_AUX structure and X509_AUX 17433 functions. An X509_AUX function such as PEM_read_X509_AUX() 17434 can still read in a certificate file in the usual way but it 17435 will also read in any additional "auxiliary information". By 17436 doing things this way a fair degree of compatibility can be 17437 retained: existing certificates can have this information added 17438 using the new 'x509' options. 17439 17440 Current auxiliary information includes an "alias" and some trust 17441 settings. The trust settings will ultimately be used in enhanced 17442 certificate chain verification routines: currently a certificate 17443 can only be trusted if it is self signed and then it is trusted 17444 for all purposes. 17445 17446 *Steve Henson* 17447 17448 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17449 The problem was that one of the replacement routines had not been working 17450 since SSLeay releases. For now the offending routine has been replaced 17451 with non-optimised assembler. Even so, this now gives around 95% 17452 performance improvement for 1024 bit RSA signs. 17453 17454 *Mark Cox* 17455 17456 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17457 handling. Most clients have the effective key size in bits equal to 17458 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17459 A few however don't do this and instead use the size of the decrypted key 17460 to determine the RC2 key length and the AlgorithmIdentifier to determine 17461 the effective key length. In this case the effective key length can still 17462 be 40 bits but the key length can be 168 bits for example. This is fixed 17463 by manually forcing an RC2 key into the EVP_PKEY structure because the 17464 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17465 the key length and effective key length are equal. 17466 17467 *Steve Henson* 17468 17469 * Add a bunch of functions that should simplify the creation of 17470 X509_NAME structures. Now you should be able to do: 17471 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17472 and have it automatically work out the correct field type and fill in 17473 the structures. The more adventurous can try: 17474 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17475 and it will (hopefully) work out the correct multibyte encoding. 17476 17477 *Steve Henson* 17478 17479 * Change the 'req' utility to use the new field handling and multibyte 17480 copy routines. Before the DN field creation was handled in an ad hoc 17481 way in req, ca, and x509 which was rather broken and didn't support 17482 BMPStrings or UTF8Strings. Since some software doesn't implement 17483 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17484 using the dirstring_type option. See the new comment in the default 17485 openssl.cnf for more info. 17486 17487 *Steve Henson* 17488 17489 * Make crypto/rand/md_rand.c more robust: 17490 - Assure unique random numbers after fork(). 17491 - Make sure that concurrent threads access the global counter and 17492 md serializably so that we never lose entropy in them 17493 or use exactly the same state in multiple threads. 17494 Access to the large state is not always serializable because 17495 the additional locking could be a performance killer, and 17496 md should be large enough anyway. 17497 17498 *Bodo Moeller* 17499 17500 * New file `apps/app_rand.c` with commonly needed functionality 17501 for handling the random seed file. 17502 17503 Use the random seed file in some applications that previously did not: 17504 ca, 17505 dsaparam -genkey (which also ignored its '-rand' option), 17506 s_client, 17507 s_server, 17508 x509 (when signing). 17509 Except on systems with /dev/urandom, it is crucial to have a random 17510 seed file at least for key creation, DSA signing, and for DH exchanges; 17511 for RSA signatures we could do without one. 17512 17513 gendh and gendsa (unlike genrsa) used to read only the first byte 17514 of each file listed in the '-rand' option. The function as previously 17515 found in genrsa is now in app_rand.c and is used by all programs 17516 that support '-rand'. 17517 17518 *Bodo Moeller* 17519 17520 * In RAND_write_file, use mode 0600 for creating files; 17521 don't just chmod when it may be too late. 17522 17523 *Bodo Moeller* 17524 17525 * Report an error from X509_STORE_load_locations 17526 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17527 17528 *Bill Perry* 17529 17530 * New function ASN1_mbstring_copy() this copies a string in either 17531 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17532 into an ASN1_STRING type. A mask of permissible types is passed 17533 and it chooses the "minimal" type to use or an error if not type 17534 is suitable. 17535 17536 *Steve Henson* 17537 17538 * Add function equivalents to the various macros in asn1.h. The old 17539 macros are retained with an `M_` prefix. Code inside the library can 17540 use the `M_` macros. External code (including the openssl utility) 17541 should *NOT* in order to be "shared library friendly". 17542 17543 *Steve Henson* 17544 17545 * Add various functions that can check a certificate's extensions 17546 to see if it usable for various purposes such as SSL client, 17547 server or S/MIME and CAs of these types. This is currently 17548 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17549 verification. Also added a -purpose flag to x509 utility to 17550 print out all the purposes. 17551 17552 *Steve Henson* 17553 17554 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17555 functions. 17556 17557 *Steve Henson* 17558 17559 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17560 for, obtain and decode and extension and obtain its critical flag. 17561 This allows all the necessary extension code to be handled in a 17562 single function call. 17563 17564 *Steve Henson* 17565 17566 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17567 platforms. See crypto/rc4/rc4_enc.c for further details. 17568 17569 *Andy Polyakov* 17570 17571 * New -noout option to asn1parse. This causes no output to be produced 17572 its main use is when combined with -strparse and -out to extract data 17573 from a file (which may not be in ASN.1 format). 17574 17575 *Steve Henson* 17576 17577 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17578 when producing the local key id. 17579 17580 *Richard Levitte <levitte@stacken.kth.se>* 17581 17582 * New option -dhparam in s_server. This allows a DH parameter file to be 17583 stated explicitly. If it is not stated then it tries the first server 17584 certificate file. The previous behaviour hard coded the filename 17585 "server.pem". 17586 17587 *Steve Henson* 17588 17589 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17590 a public key to be input or output. For example: 17591 openssl rsa -in key.pem -pubout -out pubkey.pem 17592 Also added necessary DSA public key functions to handle this. 17593 17594 *Steve Henson* 17595 17596 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17597 in the message. This was handled by allowing 17598 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17599 17600 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17601 17602 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17603 to the end of the strings whereas this didn't. This would cause problems 17604 if strings read with d2i_ASN1_bytes() were later modified. 17605 17606 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17607 17608 * Fix for base64 decode bug. When a base64 bio reads only one line of 17609 data and it contains EOF it will end up returning an error. This is 17610 caused by input 46 bytes long. The cause is due to the way base64 17611 BIOs find the start of base64 encoded data. They do this by trying a 17612 trial decode on each line until they find one that works. When they 17613 do a flag is set and it starts again knowing it can pass all the 17614 data directly through the decoder. Unfortunately it doesn't reset 17615 the context it uses. This means that if EOF is reached an attempt 17616 is made to pass two EOFs through the context and this causes the 17617 resulting error. This can also cause other problems as well. As is 17618 usual with these problems it takes *ages* to find and the fix is 17619 trivial: move one line. 17620 17621 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17622 17623 * Ugly workaround to get s_client and s_server working under Windows. The 17624 old code wouldn't work because it needed to select() on sockets and the 17625 tty (for keypresses and to see if data could be written). Win32 only 17626 supports select() on sockets so we select() with a 1s timeout on the 17627 sockets and then see if any characters are waiting to be read, if none 17628 are present then we retry, we also assume we can always write data to 17629 the tty. This isn't nice because the code then blocks until we've 17630 received a complete line of data and it is effectively polling the 17631 keyboard at 1s intervals: however it's quite a bit better than not 17632 working at all :-) A dedicated Windows application might handle this 17633 with an event loop for example. 17634 17635 *Steve Henson* 17636 17637 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17638 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17639 will be called when RSA_sign() and RSA_verify() are used. This is useful 17640 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17641 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17642 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17643 This necessitated the support of an extra signature type NID_md5_sha1 17644 for SSL signatures and modifications to the SSL library to use it instead 17645 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17646 17647 *Steve Henson* 17648 17649 * Add new -verify -CAfile and -CApath options to the crl program, these 17650 will lookup a CRL issuers certificate and verify the signature in a 17651 similar way to the verify program. Tidy up the crl program so it 17652 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17653 less strict. It will now permit CRL extensions even if it is not 17654 a V2 CRL: this will allow it to tolerate some broken CRLs. 17655 17656 *Steve Henson* 17657 17658 * Initialize all non-automatic variables each time one of the openssl 17659 sub-programs is started (this is necessary as they may be started 17660 multiple times from the "OpenSSL>" prompt). 17661 17662 *Lennart Bang, Bodo Moeller* 17663 17664 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17665 removing all other RSA functionality (this is what NO_RSA does). This 17666 is so (for example) those in the US can disable those operations covered 17667 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17668 key generation. 17669 17670 *Steve Henson* 17671 17672 * Non-copying interface to BIO pairs. 17673 (still largely untested) 17674 17675 *Bodo Moeller* 17676 17677 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17678 ASCII string. This was handled independently in various places before. 17679 17680 *Steve Henson* 17681 17682 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17683 UTF8 strings a character at a time. 17684 17685 *Steve Henson* 17686 17687 * Use client_version from client hello to select the protocol 17688 (s23_srvr.c) and for RSA client key exchange verification 17689 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17690 17691 *Bodo Moeller* 17692 17693 * Add various utility functions to handle SPKACs, these were previously 17694 handled by poking round in the structure internals. Added new function 17695 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17696 print, verify and generate SPKACs. Based on an original idea from 17697 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17698 17699 *Steve Henson* 17700 17701 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17702 17703 *Andy Polyakov* 17704 17705 * Allow the config file extension section to be overwritten on the 17706 command line. Based on an original idea from Massimiliano Pala 17707 <madwolf@comune.modena.it>. The new option is called -extensions 17708 and can be applied to ca, req and x509. Also -reqexts to override 17709 the request extensions in req and -crlexts to override the crl extensions 17710 in ca. 17711 17712 *Steve Henson* 17713 17714 * Add new feature to the SPKAC handling in ca. Now you can include 17715 the same field multiple times by preceding it by "XXXX." for example: 17716 1.OU="Unit name 1" 17717 2.OU="Unit name 2" 17718 this is the same syntax as used in the req config file. 17719 17720 *Steve Henson* 17721 17722 * Allow certificate extensions to be added to certificate requests. These 17723 are specified in a 'req_extensions' option of the req section of the 17724 config file. They can be printed out with the -text option to req but 17725 are otherwise ignored at present. 17726 17727 *Steve Henson* 17728 17729 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17730 data read consists of only the final block it would not decrypted because 17731 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17732 A misplaced 'break' also meant the decrypted final block might not be 17733 copied until the next read. 17734 17735 *Steve Henson* 17736 17737 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17738 a few extra parameters to the DH structure: these will be useful if 17739 for example we want the value of 'q' or implement X9.42 DH. 17740 17741 *Steve Henson* 17742 17743 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17744 provides hooks that allow the default DSA functions or functions on a 17745 "per key" basis to be replaced. This allows hardware acceleration and 17746 hardware key storage to be handled without major modification to the 17747 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17748 associated functions. 17749 17750 *Steve Henson* 17751 17752 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17753 as "read only": it can't be written to and the buffer it points to will 17754 not be freed. Reading from a read only BIO is much more efficient than 17755 a normal memory BIO. This was added because there are several times when 17756 an area of memory needs to be read from a BIO. The previous method was 17757 to create a memory BIO and write the data to it, this results in two 17758 copies of the data and an O(n^2) reading algorithm. There is a new 17759 function BIO_new_mem_buf() which creates a read only memory BIO from 17760 an area of memory. Also modified the PKCS#7 routines to use read only 17761 memory BIOs. 17762 17763 *Steve Henson* 17764 17765 * Bugfix: ssl23_get_client_hello did not work properly when called in 17766 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17767 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17768 but a retry condition occurred while trying to read the rest. 17769 17770 *Bodo Moeller* 17771 17772 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17773 NID_pkcs7_encrypted by default: this was wrong since this should almost 17774 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17775 the encrypted data type: this is a more sensible place to put it and it 17776 allows the PKCS#12 code to be tidied up that duplicated this 17777 functionality. 17778 17779 *Steve Henson* 17780 17781 * Changed obj_dat.pl script so it takes its input and output files on 17782 the command line. This should avoid shell escape redirection problems 17783 under Win32. 17784 17785 *Steve Henson* 17786 17787 * Initial support for certificate extension requests, these are included 17788 in things like Xenroll certificate requests. Included functions to allow 17789 extensions to be obtained and added. 17790 17791 *Steve Henson* 17792 17793 * -crlf option to s_client and s_server for sending newlines as 17794 CRLF (as required by many protocols). 17795 17796 *Bodo Moeller* 17797 17798### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 17799 17800 * Install libRSAglue.a when OpenSSL is built with RSAref. 17801 17802 *Ralf S. Engelschall* 17803 17804 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 17805 17806 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 17807 17808 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 17809 program. 17810 17811 *Steve Henson* 17812 17813 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 17814 DH parameters/keys (q is lost during that conversion, but the resulting 17815 DH parameters contain its length). 17816 17817 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 17818 much faster than DH_generate_parameters (which creates parameters 17819 where `p = 2*q + 1`), and also the smaller q makes DH computations 17820 much more efficient (160-bit exponentiation instead of 1024-bit 17821 exponentiation); so this provides a convenient way to support DHE 17822 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 17823 utter importance to use 17824 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17825 or 17826 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17827 when such DH parameters are used, because otherwise small subgroup 17828 attacks may become possible! 17829 17830 *Bodo Moeller* 17831 17832 * Avoid memory leak in i2d_DHparams. 17833 17834 *Bodo Moeller* 17835 17836 * Allow the -k option to be used more than once in the enc program: 17837 this allows the same encrypted message to be read by multiple recipients. 17838 17839 *Steve Henson* 17840 17841 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 17842 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 17843 it will always use the numerical form of the OID, even if it has a short 17844 or long name. 17845 17846 *Steve Henson* 17847 17848 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 17849 method only got called if p,q,dmp1,dmq1,iqmp components were present, 17850 otherwise bn_mod_exp was called. In the case of hardware keys for example 17851 no private key components need be present and it might store extra data 17852 in the RSA structure, which cannot be accessed from bn_mod_exp. 17853 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 17854 private key operations. 17855 17856 *Steve Henson* 17857 17858 * Added support for SPARC Linux. 17859 17860 *Andy Polyakov* 17861 17862 * pem_password_cb function type incompatibly changed from 17863 typedef int pem_password_cb(char *buf, int size, int rwflag); 17864 to 17865 ....(char *buf, int size, int rwflag, void *userdata); 17866 so that applications can pass data to their callbacks: 17867 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 17868 additional void * argument, which is just handed through whenever 17869 the password callback is called. 17870 17871 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 17872 17873 New function SSL_CTX_set_default_passwd_cb_userdata. 17874 17875 Compatibility note: As many C implementations push function arguments 17876 onto the stack in reverse order, the new library version is likely to 17877 interoperate with programs that have been compiled with the old 17878 pem_password_cb definition (PEM_whatever takes some data that 17879 happens to be on the stack as its last argument, and the callback 17880 just ignores this garbage); but there is no guarantee whatsoever that 17881 this will work. 17882 17883 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 17884 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 17885 problems not only on Windows, but also on some Unix platforms. 17886 To avoid problematic command lines, these definitions are now in an 17887 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 17888 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 17889 17890 *Bodo Moeller* 17891 17892 * MIPS III/IV assembler module is reimplemented. 17893 17894 *Andy Polyakov* 17895 17896 * More DES library cleanups: remove references to srand/rand and 17897 delete an unused file. 17898 17899 *Ulf Möller* 17900 17901 * Add support for the free Netwide assembler (NASM) under Win32, 17902 since not many people have MASM (ml) and it can be hard to obtain. 17903 This is currently experimental but it seems to work OK and pass all 17904 the tests. Check out INSTALL.W32 for info. 17905 17906 *Steve Henson* 17907 17908 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 17909 without temporary keys kept an extra copy of the server key, 17910 and connections with temporary keys did not free everything in case 17911 of an error. 17912 17913 *Bodo Moeller* 17914 17915 * New function RSA_check_key and new openssl rsa option -check 17916 for verifying the consistency of RSA keys. 17917 17918 *Ulf Moeller, Bodo Moeller* 17919 17920 * Various changes to make Win32 compile work: 17921 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 17922 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 17923 comparison" warnings. 17924 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 17925 17926 *Steve Henson* 17927 17928 * Add a debugging option to PKCS#5 v2 key generation function: when 17929 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 17930 derived keys are printed to stderr. 17931 17932 *Steve Henson* 17933 17934 * Copy the flags in ASN1_STRING_dup(). 17935 17936 *Roman E. Pavlov <pre@mo.msk.ru>* 17937 17938 * The x509 application mishandled signing requests containing DSA 17939 keys when the signing key was also DSA and the parameters didn't match. 17940 17941 It was supposed to omit the parameters when they matched the signing key: 17942 the verifying software was then supposed to automatically use the CA's 17943 parameters if they were absent from the end user certificate. 17944 17945 Omitting parameters is no longer recommended. The test was also 17946 the wrong way round! This was probably due to unusual behaviour in 17947 EVP_cmp_parameters() which returns 1 if the parameters match. 17948 This meant that parameters were omitted when they *didn't* match and 17949 the certificate was useless. Certificates signed with 'ca' didn't have 17950 this bug. 17951 17952 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 17953 17954 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 17955 The interface is as follows: 17956 Applications can use 17957 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 17958 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 17959 "off" is now the default. 17960 The library internally uses 17961 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 17962 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 17963 to disable memory-checking temporarily. 17964 17965 Some inconsistent states that previously were possible (and were 17966 even the default) are now avoided. 17967 17968 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 17969 with each memory chunk allocated; this is occasionally more helpful 17970 than just having a counter. 17971 17972 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 17973 17974 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 17975 extensions. 17976 17977 *Bodo Moeller* 17978 17979 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 17980 which largely parallels "options", but is for changing API behaviour, 17981 whereas "options" are about protocol behaviour. 17982 Initial "mode" flags are: 17983 17984 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 17985 a single record has been written. 17986 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 17987 retries use the same buffer location. 17988 (But all of the contents must be 17989 copied!) 17990 17991 *Bodo Moeller* 17992 17993 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 17994 worked. 17995 17996 * Fix problems with no-hmac etc. 17997 17998 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 17999 18000 * New functions RSA_get_default_method(), RSA_set_method() and 18001 RSA_get_method(). These allows replacement of RSA_METHODs without having 18002 to mess around with the internals of an RSA structure. 18003 18004 *Steve Henson* 18005 18006 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 18007 Also really enable memory leak checks in openssl.c and in some 18008 test programs. 18009 18010 *Chad C. Mulligan, Bodo Moeller* 18011 18012 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 18013 up the length of negative integers. This has now been simplified to just 18014 store the length when it is first determined and use it later, rather 18015 than trying to keep track of where data is copied and updating it to 18016 point to the end. 18017 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 18018 18019 * Add a new function PKCS7_signatureVerify. This allows the verification 18020 of a PKCS#7 signature but with the signing certificate passed to the 18021 function itself. This contrasts with PKCS7_dataVerify which assumes the 18022 certificate is present in the PKCS#7 structure. This isn't always the 18023 case: certificates can be omitted from a PKCS#7 structure and be 18024 distributed by "out of band" means (such as a certificate database). 18025 18026 *Steve Henson* 18027 18028 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 18029 function prototypes in pem.h, also change util/mkdef.pl to add the 18030 necessary function names. 18031 18032 *Steve Henson* 18033 18034 * mk1mf.pl (used by Windows builds) did not properly read the 18035 options set by Configure in the top level Makefile, and Configure 18036 was not even able to write more than one option correctly. 18037 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 18038 18039 *Bodo Moeller* 18040 18041 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 18042 file to be loaded from a BIO or FILE pointer. The BIO version will 18043 for example allow memory BIOs to contain config info. 18044 18045 *Steve Henson* 18046 18047 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 18048 Whoever hopes to achieve shared-library compatibility across versions 18049 must use this, not the compile-time macro. 18050 (Exercise 0.9.4: Which is the minimum library version required by 18051 such programs?) 18052 Note: All this applies only to multi-threaded programs, others don't 18053 need locks. 18054 18055 *Bodo Moeller* 18056 18057 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 18058 through a BIO pair triggered the default case, i.e. 18059 SSLerr(...,SSL_R_UNKNOWN_STATE). 18060 18061 *Bodo Moeller* 18062 18063 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 18064 can use the SSL library even if none of the specific BIOs is 18065 appropriate. 18066 18067 *Bodo Moeller* 18068 18069 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 18070 for the encoded length. 18071 18072 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 18073 18074 * Add initial documentation of the X509V3 functions. 18075 18076 *Steve Henson* 18077 18078 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 18079 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 18080 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 18081 secure PKCS#8 private key format with a high iteration count. 18082 18083 *Steve Henson* 18084 18085 * Fix determination of Perl interpreter: A perl or perl5 18086 *directory* in $PATH was also accepted as the interpreter. 18087 18088 *Ralf S. Engelschall* 18089 18090 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 18091 wrong with it but it was very old and did things like calling 18092 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 18093 unusual formatting. 18094 18095 *Steve Henson* 18096 18097 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 18098 to use the new extension code. 18099 18100 *Steve Henson* 18101 18102 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 18103 with macros. This should make it easier to change their form, add extra 18104 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 18105 constant. 18106 18107 *Steve Henson* 18108 18109 * Add to configuration table a new entry that can specify an alternative 18110 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 18111 according to Mark Crispin <MRC@Panda.COM>. 18112 18113 *Bodo Moeller* 18114 18115 * DES CBC did not update the IV. Weird. 18116 18117 *Ben Laurie* 18118lse 18119 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 18120 Changing the behaviour of the former might break existing programs -- 18121 where IV updating is needed, des_ncbc_encrypt can be used. 18122ndif 18123 18124 * When bntest is run from "make test" it drives bc to check its 18125 calculations, as well as internally checking them. If an internal check 18126 fails, it needs to cause bc to give a non-zero result or make test carries 18127 on without noticing the failure. Fixed. 18128 18129 *Ben Laurie* 18130 18131 * DES library cleanups. 18132 18133 *Ulf Möller* 18134 18135 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 18136 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 18137 ciphers. NOTE: although the key derivation function has been verified 18138 against some published test vectors it has not been extensively tested 18139 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 18140 of v2.0. 18141 18142 *Steve Henson* 18143 18144 * Instead of "mkdir -p", which is not fully portable, use new 18145 Perl script "util/mkdir-p.pl". 18146 18147 *Bodo Moeller* 18148 18149 * Rewrite the way password based encryption (PBE) is handled. It used to 18150 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 18151 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 18152 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 18153 the 'parameter' field of the AlgorithmIdentifier is passed to the 18154 underlying key generation function so it must do its own ASN1 parsing. 18155 This has also changed the EVP_PBE_CipherInit() function which now has a 18156 'parameter' argument instead of literal salt and iteration count values 18157 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 18158 18159 *Steve Henson* 18160 18161 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18162 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18163 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18164 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18165 value was just used as a "magic string" and not used directly its 18166 value doesn't matter. 18167 18168 *Steve Henson* 18169 18170 * Introduce some semblance of const correctness to BN. Shame C doesn't 18171 support mutable. 18172 18173 *Ben Laurie* 18174 18175 * "linux-sparc64" configuration (ultrapenguin). 18176 18177 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18178 "linux-sparc" configuration. 18179 18180 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18181 18182 * config now generates no-xxx options for missing ciphers. 18183 18184 *Ulf Möller* 18185 18186 * Support the EBCDIC character set (work in progress). 18187 File ebcdic.c not yet included because it has a different license. 18188 18189 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18190 18191 * Support BS2000/OSD-POSIX. 18192 18193 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18194 18195 * Make callbacks for key generation use `void *` instead of `char *`. 18196 18197 *Ben Laurie* 18198 18199 * Make S/MIME samples compile (not yet tested). 18200 18201 *Ben Laurie* 18202 18203 * Additional typesafe stacks. 18204 18205 *Ben Laurie* 18206 18207 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18208 18209 *Bodo Moeller* 18210 18211### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18212 18213 * New configuration variant "sco5-gcc". 18214 18215 * Updated some demos. 18216 18217 *Sean O Riordain, Wade Scholine* 18218 18219 * Add missing BIO_free at exit of pkcs12 application. 18220 18221 *Wu Zhigang* 18222 18223 * Fix memory leak in conf.c. 18224 18225 *Steve Henson* 18226 18227 * Updates for Win32 to assembler version of MD5. 18228 18229 *Steve Henson* 18230 18231 * Set #! path to perl in `apps/der_chop` to where we found it 18232 instead of using a fixed path. 18233 18234 *Bodo Moeller* 18235 18236 * SHA library changes for irix64-mips4-cc. 18237 18238 *Andy Polyakov* 18239 18240 * Improvements for VMS support. 18241 18242 *Richard Levitte* 18243 18244### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18245 18246 * Bignum library bug fix. IRIX 6 passes "make test" now! 18247 This also avoids the problems with SC4.2 and unpatched SC5. 18248 18249 *Andy Polyakov <appro@fy.chalmers.se>* 18250 18251 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18252 These are required because of the typesafe stack would otherwise break 18253 existing code. If old code used a structure member which used to be STACK 18254 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18255 sk_num or sk_value it would produce an error because the num, data members 18256 are not present in STACK_OF. Now it just produces a warning. sk_set 18257 replaces the old method of assigning a value to sk_value 18258 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18259 that does this will no longer work (and should use sk_set instead) but 18260 this could be regarded as a "questionable" behaviour anyway. 18261 18262 *Steve Henson* 18263 18264 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18265 correctly handle encrypted S/MIME data. 18266 18267 *Steve Henson* 18268 18269 * Change type of various DES function arguments from des_cblock 18270 (which means, in function argument declarations, pointer to char) 18271 to des_cblock * (meaning pointer to array with 8 char elements), 18272 which allows the compiler to do more typechecking; it was like 18273 that back in SSLeay, but with lots of ugly casts. 18274 18275 Introduce new type const_des_cblock. 18276 18277 *Bodo Moeller* 18278 18279 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18280 problems: find RecipientInfo structure that matches recipient certificate 18281 and initialise the ASN1 structures properly based on passed cipher. 18282 18283 *Steve Henson* 18284 18285 * Belatedly make the BN tests actually check the results. 18286 18287 *Ben Laurie* 18288 18289 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18290 to and from BNs: it was completely broken. New compilation option 18291 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18292 key elements as negative integers. 18293 18294 *Steve Henson* 18295 18296 * Reorganize and speed up MD5. 18297 18298 *Andy Polyakov <appro@fy.chalmers.se>* 18299 18300 * VMS support. 18301 18302 *Richard Levitte <richard@levitte.org>* 18303 18304 * New option -out to asn1parse to allow the parsed structure to be 18305 output to a file. This is most useful when combined with the -strparse 18306 option to examine the output of things like OCTET STRINGS. 18307 18308 *Steve Henson* 18309 18310 * Make SSL library a little more fool-proof by not requiring any longer 18311 that `SSL_set_{accept,connect}_state` be called before 18312 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18313 in many applications because usually everything *appeared* to work as 18314 intended anyway -- now it really works as intended). 18315 18316 *Bodo Moeller* 18317 18318 * Move openssl.cnf out of lib/. 18319 18320 *Ulf Möller* 18321 18322 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18323 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18324 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18325 18326 *Ralf S. Engelschall* 18327 18328 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18329 handle PKCS#7 enveloped data properly. 18330 18331 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18332 18333 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18334 copying pointers. The cert_st handling is changed by this in 18335 various ways (and thus what used to be known as ctx->default_cert 18336 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18337 any longer when s->cert does not give us what we need). 18338 ssl_cert_instantiate becomes obsolete by this change. 18339 As soon as we've got the new code right (possibly it already is?), 18340 we have solved a couple of bugs of the earlier code where s->cert 18341 was used as if it could not have been shared with other SSL structures. 18342 18343 Note that using the SSL API in certain dirty ways now will result 18344 in different behaviour than observed with earlier library versions: 18345 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18346 does not influence s as it used to. 18347 18348 In order to clean up things more thoroughly, inside SSL_SESSION 18349 we don't use CERT any longer, but a new structure SESS_CERT 18350 that holds per-session data (if available); currently, this is 18351 the peer's certificate chain and, for clients, the server's certificate 18352 and temporary key. CERT holds only those values that can have 18353 meaningful defaults in an SSL_CTX. 18354 18355 *Bodo Moeller* 18356 18357 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18358 from the internal representation. Various PKCS#7 fixes: remove some 18359 evil casts and set the enc_dig_alg field properly based on the signing 18360 key type. 18361 18362 *Steve Henson* 18363 18364 * Allow PKCS#12 password to be set from the command line or the 18365 environment. Let 'ca' get its config file name from the environment 18366 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18367 and 'x509'). 18368 18369 *Steve Henson* 18370 18371 * Allow certificate policies extension to use an IA5STRING for the 18372 organization field. This is contrary to the PKIX definition but 18373 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18374 extension option. 18375 18376 *Steve Henson* 18377 18378 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18379 without disallowing inline assembler and the like for non-pedantic builds. 18380 18381 *Ben Laurie* 18382 18383 * Support Borland C++ builder. 18384 18385 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18386 18387 * Support Mingw32. 18388 18389 *Ulf Möller* 18390 18391 * SHA-1 cleanups and performance enhancements. 18392 18393 *Andy Polyakov <appro@fy.chalmers.se>* 18394 18395 * Sparc v8plus assembler for the bignum library. 18396 18397 *Andy Polyakov <appro@fy.chalmers.se>* 18398 18399 * Accept any -xxx and +xxx compiler options in Configure. 18400 18401 *Ulf Möller* 18402 18403 * Update HPUX configuration. 18404 18405 *Anonymous* 18406 18407 * Add missing `sk_<type>_unshift()` function to safestack.h 18408 18409 *Ralf S. Engelschall* 18410 18411 * New function SSL_CTX_use_certificate_chain_file that sets the 18412 "extra_cert"s in addition to the certificate. (This makes sense 18413 only for "PEM" format files, as chains as a whole are not 18414 DER-encoded.) 18415 18416 *Bodo Moeller* 18417 18418 * Support verify_depth from the SSL API. 18419 x509_vfy.c had what can be considered an off-by-one-error: 18420 Its depth (which was not part of the external interface) 18421 was actually counting the number of certificates in a chain; 18422 now it really counts the depth. 18423 18424 *Bodo Moeller* 18425 18426 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18427 instead of X509err, which often resulted in confusing error 18428 messages since the error codes are not globally unique 18429 (e.g. an alleged error in ssl3_accept when a certificate 18430 didn't match the private key). 18431 18432 * New function SSL_CTX_set_session_id_context that allows to set a default 18433 value (so that you don't need SSL_set_session_id_context for each 18434 connection using the SSL_CTX). 18435 18436 *Bodo Moeller* 18437 18438 * OAEP decoding bug fix. 18439 18440 *Ulf Möller* 18441 18442 * Support INSTALL_PREFIX for package builders, as proposed by 18443 David Harris. 18444 18445 *Bodo Moeller* 18446 18447 * New Configure options "threads" and "no-threads". For systems 18448 where the proper compiler options are known (currently Solaris 18449 and Linux), "threads" is the default. 18450 18451 *Bodo Moeller* 18452 18453 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18454 18455 *Bodo Moeller* 18456 18457 * Install various scripts to $(OPENSSLDIR)/misc, not to 18458 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18459 such as /usr/local/bin. 18460 18461 *Bodo Moeller* 18462 18463 * "make linux-shared" to build shared libraries. 18464 18465 *Niels Poppe <niels@netbox.org>* 18466 18467 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18468 18469 *Ulf Möller* 18470 18471 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18472 extension adding in x509 utility. 18473 18474 *Steve Henson* 18475 18476 * Remove NOPROTO sections and error code comments. 18477 18478 *Ulf Möller* 18479 18480 * Partial rewrite of the DEF file generator to now parse the ANSI 18481 prototypes. 18482 18483 *Steve Henson* 18484 18485 * New Configure options --prefix=DIR and --openssldir=DIR. 18486 18487 *Ulf Möller* 18488 18489 * Complete rewrite of the error code script(s). It is all now handled 18490 by one script at the top level which handles error code gathering, 18491 header rewriting and C source file generation. It should be much better 18492 than the old method: it now uses a modified version of Ulf's parser to 18493 read the ANSI prototypes in all header files (thus the old K&R definitions 18494 aren't needed for error creation any more) and do a better job of 18495 translating function codes into names. The old 'ASN1 error code embedded 18496 in a comment' is no longer necessary and it doesn't use .err files which 18497 have now been deleted. Also the error code call doesn't have to appear all 18498 on one line (which resulted in some large lines...). 18499 18500 *Steve Henson* 18501 18502 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18503 18504 *Bodo Moeller* 18505 18506 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18507 0 (which usually indicates a closed connection), but continue reading. 18508 18509 *Bodo Moeller* 18510 18511 * Fix some race conditions. 18512 18513 *Bodo Moeller* 18514 18515 * Add support for CRL distribution points extension. Add Certificate 18516 Policies and CRL distribution points documentation. 18517 18518 *Steve Henson* 18519 18520 * Move the autogenerated header file parts to crypto/opensslconf.h. 18521 18522 *Ulf Möller* 18523 18524 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18525 8 of keying material. Merlin has also confirmed interop with this fix 18526 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18527 18528 *Merlin Hughes <merlin@baltimore.ie>* 18529 18530 * Fix lots of warnings. 18531 18532 *Richard Levitte <levitte@stacken.kth.se>* 18533 18534 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18535 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18536 18537 *Richard Levitte <levitte@stacken.kth.se>* 18538 18539 * Fix problems with sizeof(long) == 8. 18540 18541 *Andy Polyakov <appro@fy.chalmers.se>* 18542 18543 * Change functions to ANSI C. 18544 18545 *Ulf Möller* 18546 18547 * Fix typos in error codes. 18548 18549 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18550 18551 * Remove defunct assembler files from Configure. 18552 18553 *Ulf Möller* 18554 18555 * SPARC v8 assembler BIGNUM implementation. 18556 18557 *Andy Polyakov <appro@fy.chalmers.se>* 18558 18559 * Support for Certificate Policies extension: both print and set. 18560 Various additions to support the r2i method this uses. 18561 18562 *Steve Henson* 18563 18564 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18565 return a const string when you are expecting an allocated buffer. 18566 18567 *Ben Laurie* 18568 18569 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18570 types DirectoryString and DisplayText. 18571 18572 *Steve Henson* 18573 18574 * Add code to allow r2i extensions to access the configuration database, 18575 add an LHASH database driver and add several ctx helper functions. 18576 18577 *Steve Henson* 18578 18579 * Fix an evil bug in bn_expand2() which caused various BN functions to 18580 fail when they extended the size of a BIGNUM. 18581 18582 *Steve Henson* 18583 18584 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18585 support typesafe stack. 18586 18587 *Steve Henson* 18588 18589 * Fix typo in SSL_[gs]et_options(). 18590 18591 *Nils Frostberg <nils@medcom.se>* 18592 18593 * Delete various functions and files that belonged to the (now obsolete) 18594 old X509V3 handling code. 18595 18596 *Steve Henson* 18597 18598 * New Configure option "rsaref". 18599 18600 *Ulf Möller* 18601 18602 * Don't auto-generate pem.h. 18603 18604 *Bodo Moeller* 18605 18606 * Introduce type-safe ASN.1 SETs. 18607 18608 *Ben Laurie* 18609 18610 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18611 18612 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18613 18614 * Introduce type-safe STACKs. This will almost certainly break lots of code 18615 that links with OpenSSL (well at least cause lots of warnings), but fear 18616 not: the conversion is trivial, and it eliminates loads of evil casts. A 18617 few STACKed things have been converted already. Feel free to convert more. 18618 In the fullness of time, I'll do away with the STACK type altogether. 18619 18620 *Ben Laurie* 18621 18622 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18623 specified in `<certfile>` by updating the entry in the index.txt file. 18624 This way one no longer has to edit the index.txt file manually for 18625 revoking a certificate. The -revoke option does the gory details now. 18626 18627 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18628 18629 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18630 `-text` option at all and this way the `-noout -text` combination was 18631 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18632 18633 *Ralf S. Engelschall* 18634 18635 * Make sure a corresponding plain text error message exists for the 18636 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18637 verify callback function determined that a certificate was revoked. 18638 18639 *Ralf S. Engelschall* 18640 18641 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18642 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18643 all available ciphers including rc5, which was forgotten until now. 18644 In order to let the testing shell script know which algorithms 18645 are available, a new (up to now undocumented) command 18646 `openssl list-cipher-commands` is used. 18647 18648 *Bodo Moeller* 18649 18650 * Bugfix: s_client occasionally would sleep in select() when 18651 it should have checked SSL_pending() first. 18652 18653 *Bodo Moeller* 18654 18655 * New functions DSA_do_sign and DSA_do_verify to provide access to 18656 the raw DSA values prior to ASN.1 encoding. 18657 18658 *Ulf Möller* 18659 18660 * Tweaks to Configure 18661 18662 *Niels Poppe <niels@netbox.org>* 18663 18664 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18665 yet... 18666 18667 *Steve Henson* 18668 18669 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18670 18671 *Ulf Möller* 18672 18673 * New config option to avoid instructions that are illegal on the 80386. 18674 The default code is faster, but requires at least a 486. 18675 18676 *Ulf Möller* 18677 18678 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18679 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18680 same as SSL2_VERSION anyway. 18681 18682 *Bodo Moeller* 18683 18684 * New "-showcerts" option for s_client. 18685 18686 *Bodo Moeller* 18687 18688 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18689 application. Various cleanups and fixes. 18690 18691 *Steve Henson* 18692 18693 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18694 modify error routines to work internally. Add error codes and PBE init 18695 to library startup routines. 18696 18697 *Steve Henson* 18698 18699 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18700 packing functions to asn1 and evp. Changed function names and error 18701 codes along the way. 18702 18703 *Steve Henson* 18704 18705 * PKCS12 integration: and so it begins... First of several patches to 18706 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18707 objects to objects.h 18708 18709 *Steve Henson* 18710 18711 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18712 and display support for Thawte strong extranet extension. 18713 18714 *Steve Henson* 18715 18716 * Add LinuxPPC support. 18717 18718 *Jeff Dubrule <igor@pobox.org>* 18719 18720 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18721 bn_div_words in alpha.s. 18722 18723 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18724 18725 * Make sure the RSA OAEP test is skipped under -DRSAref because 18726 OAEP isn't supported when OpenSSL is built with RSAref. 18727 18728 *Ulf Moeller <ulf@fitug.de>* 18729 18730 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18731 so they no longer are missing under -DNOPROTO. 18732 18733 *Soren S. Jorvang <soren@t.dk>* 18734 18735### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18736 18737 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18738 doesn't work when the session is reused. Coming soon! 18739 18740 *Ben Laurie* 18741 18742 * Fix a security hole, that allows sessions to be reused in the wrong 18743 context thus bypassing client cert protection! All software that uses 18744 client certs and session caches in multiple contexts NEEDS PATCHING to 18745 allow session reuse! A fuller solution is in the works. 18746 18747 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18748 18749 * Some more source tree cleanups (removed obsolete files 18750 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18751 permission on "config" script to be executable) and a fix for the INSTALL 18752 document. 18753 18754 *Ulf Moeller <ulf@fitug.de>* 18755 18756 * Remove some legacy and erroneous uses of malloc, free instead of 18757 Malloc, Free. 18758 18759 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18760 18761 * Make rsa_oaep_test return non-zero on error. 18762 18763 *Ulf Moeller <ulf@fitug.de>* 18764 18765 * Add support for native Solaris shared libraries. Configure 18766 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18767 if someone would make that last step automatic. 18768 18769 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18770 18771 * ctx_size was not built with the right compiler during "make links". Fixed. 18772 18773 *Ben Laurie* 18774 18775 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18776 except NULL ciphers". This means the default cipher list will no longer 18777 enable NULL ciphers. They need to be specifically enabled e.g. with 18778 the string "DEFAULT:eNULL". 18779 18780 *Steve Henson* 18781 18782 * Fix to RSA private encryption routines: if p < q then it would 18783 occasionally produce an invalid result. This will only happen with 18784 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18785 18786 *Steve Henson* 18787 18788 * Be less restrictive and allow also `perl util/perlpath.pl 18789 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 18790 because this way one can also use an interpreter named `perl5` (which is 18791 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 18792 installed as `perl`). 18793 18794 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18795 18796 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 18797 18798 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18799 18800 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 18801 advapi32.lib to Win32 build and change the pem test comparison 18802 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 18803 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 18804 and crypto/des/ede_cbcm_enc.c. 18805 18806 *Steve Henson* 18807 18808 * DES quad checksum was broken on big-endian architectures. Fixed. 18809 18810 *Ben Laurie* 18811 18812 * Comment out two functions in bio.h that aren't implemented. Fix up the 18813 Win32 test batch file so it (might) work again. The Win32 test batch file 18814 is horrible: I feel ill.... 18815 18816 *Steve Henson* 18817 18818 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 18819 in e_os.h. Audit of header files to check ANSI and non ANSI 18820 sections: 10 functions were absent from non ANSI section and not exported 18821 from Windows DLLs. Fixed up libeay.num for new functions. 18822 18823 *Steve Henson* 18824 18825 * Make `openssl version` output lines consistent. 18826 18827 *Ralf S. Engelschall* 18828 18829 * Fix Win32 symbol export lists for BIO functions: Added 18830 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 18831 to ms/libeay{16,32}.def. 18832 18833 *Ralf S. Engelschall* 18834 18835 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 18836 fine under Unix and passes some trivial tests I've now added. But the 18837 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 18838 added to make sure no one expects that this stuff really works in the 18839 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 18840 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 18841 openssl_bio.xs. 18842 18843 *Ralf S. Engelschall* 18844 18845 * Fix the generation of two part addresses in perl. 18846 18847 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 18848 18849 * Add config entry for Linux on MIPS. 18850 18851 *John Tobey <jtobey@channel1.com>* 18852 18853 * Make links whenever Configure is run, unless we are on Windoze. 18854 18855 *Ben Laurie* 18856 18857 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 18858 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 18859 in CRLs. 18860 18861 *Steve Henson* 18862 18863 * Add a useful kludge to allow package maintainers to specify compiler and 18864 other platforms details on the command line without having to patch the 18865 Configure script every time: One now can use 18866 `perl Configure <id>:<details>`, 18867 i.e. platform ids are allowed to have details appended 18868 to them (separated by colons). This is treated as there would be a static 18869 pre-configured entry in Configure's %table under key `<id>` with value 18870 `<details>` and `perl Configure <id>` is called. So, when you want to 18871 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 18872 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 18873 now, which overrides the FreeBSD-elf entry on-the-fly. 18874 18875 *Ralf S. Engelschall* 18876 18877 * Disable new TLS1 ciphersuites by default: they aren't official yet. 18878 18879 *Ben Laurie* 18880 18881 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 18882 on the `perl Configure ...` command line. This way one can compile 18883 OpenSSL libraries with Position Independent Code (PIC) which is needed 18884 for linking it into DSOs. 18885 18886 *Ralf S. Engelschall* 18887 18888 * Remarkably, export ciphers were totally broken and no-one had noticed! 18889 Fixed. 18890 18891 *Ben Laurie* 18892 18893 * Cleaned up the LICENSE document: The official contact for any license 18894 questions now is the OpenSSL core team under openssl-core@openssl.org. 18895 And add a paragraph about the dual-license situation to make sure people 18896 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 18897 to the OpenSSL toolkit. 18898 18899 *Ralf S. Engelschall* 18900 18901 * General source tree makefile cleanups: Made `making xxx in yyy...` 18902 display consistent in the source tree and replaced `/bin/rm` by `rm`. 18903 Additionally cleaned up the `make links` target: Remove unnecessary 18904 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 18905 to speed processing and no longer clutter the display with confusing 18906 stuff. Instead only the actually done links are displayed. 18907 18908 *Ralf S. Engelschall* 18909 18910 * Permit null encryption ciphersuites, used for authentication only. It used 18911 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 18912 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 18913 encryption. 18914 18915 *Ben Laurie* 18916 18917 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 18918 signed attributes when verifying signatures (this would break them), 18919 the detached data encoding was wrong and public keys obtained using 18920 X509_get_pubkey() weren't freed. 18921 18922 *Steve Henson* 18923 18924 * Add text documentation for the BUFFER functions. Also added a work around 18925 to a Win95 console bug. This was triggered by the password read stuff: the 18926 last character typed gets carried over to the next fread(). If you were 18927 generating a new cert request using 'req' for example then the last 18928 character of the passphrase would be CR which would then enter the first 18929 field as blank. 18930 18931 *Steve Henson* 18932 18933 * Added the new 'Includes OpenSSL Cryptography Software' button as 18934 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 18935 button and can be used by applications based on OpenSSL to show the 18936 relationship to the OpenSSL project. 18937 18938 *Ralf S. Engelschall* 18939 18940 * Remove confusing variables in function signatures in files 18941 ssl/ssl_lib.c and ssl/ssl.h. 18942 18943 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18944 18945 * Don't install bss_file.c under PREFIX/include/ 18946 18947 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18948 18949 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 18950 functions that return function pointers and has support for NT specific 18951 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 18952 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 18953 unsigned to signed types: this was killing the Win32 compile. 18954 18955 *Steve Henson* 18956 18957 * Add new certificate file to stack functions, 18958 SSL_add_dir_cert_subjects_to_stack() and 18959 SSL_add_file_cert_subjects_to_stack(). These largely supplant 18960 SSL_load_client_CA_file(), and can be used to add multiple certs easily 18961 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 18962 This means that Apache-SSL and similar packages don't have to mess around 18963 to add as many CAs as they want to the preferred list. 18964 18965 *Ben Laurie* 18966 18967 * Experiment with doxygen documentation. Currently only partially applied to 18968 ssl/ssl_lib.c. 18969 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 18970 openssl.doxy as the configuration file. 18971 18972 *Ben Laurie* 18973 18974 * Get rid of remaining C++-style comments which strict C compilers hate. 18975 18976 *Ralf S. Engelschall, pointed out by Carlos Amengual* 18977 18978 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 18979 compiled in by default: it has problems with large keys. 18980 18981 *Steve Henson* 18982 18983 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 18984 DH private keys and/or callback functions which directly correspond to 18985 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 18986 is needed for applications which have to configure certificates on a 18987 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 18988 (e.g. s_server). 18989 For the RSA certificate situation is makes no difference, but 18990 for the DSA certificate situation this fixes the "no shared cipher" 18991 problem where the OpenSSL cipher selection procedure failed because the 18992 temporary keys were not overtaken from the context and the API provided 18993 no way to reconfigure them. 18994 The new functions now let applications reconfigure the stuff and they 18995 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 18996 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 18997 non-public-API function ssl_cert_instantiate() is used as a helper 18998 function and also to reduce code redundancy inside ssl_rsa.c. 18999 19000 *Ralf S. Engelschall* 19001 19002 * Move s_server -dcert and -dkey options out of the undocumented feature 19003 area because they are useful for the DSA situation and should be 19004 recognized by the users. 19005 19006 *Ralf S. Engelschall* 19007 19008 * Fix the cipher decision scheme for export ciphers: the export bits are 19009 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 19010 SSL_EXP_MASK. So, the original variable has to be used instead of the 19011 already masked variable. 19012 19013 *Richard Levitte <levitte@stacken.kth.se>* 19014 19015 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 19016 19017 *Richard Levitte <levitte@stacken.kth.se>* 19018 19019 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 19020 from `int` to `unsigned int` because it is a length and initialized by 19021 EVP_DigestFinal() which expects an `unsigned int *`. 19022 19023 *Richard Levitte <levitte@stacken.kth.se>* 19024 19025 * Don't hard-code path to Perl interpreter on shebang line of Configure 19026 script. Instead use the usual Shell->Perl transition trick. 19027 19028 *Ralf S. Engelschall* 19029 19030 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 19031 (in addition to RSA certificates) to match the behaviour of `openssl dsa 19032 -noout -modulus` as it's already the case for `openssl rsa -noout 19033 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 19034 currently the public key is printed (a decision which was already done by 19035 `openssl dsa -modulus` in the past) which serves a similar purpose. 19036 Additionally the NO_RSA no longer completely removes the whole -modulus 19037 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 19038 now, too. 19039 19040 *Ralf S. Engelschall* 19041 19042 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 19043 BIO. See the source (crypto/evp/bio_ok.c) for more info. 19044 19045 *Arne Ansper <arne@ats.cyber.ee>* 19046 19047 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 19048 to be added. Now both 'req' and 'ca' can use new objects defined in the 19049 config file. 19050 19051 *Steve Henson* 19052 19053 * Add cool BIO that does syslog (or event log on NT). 19054 19055 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 19056 19057 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 19058 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 19059 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 19060 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 19061 19062 *Ben Laurie* 19063 19064 * Add preliminary config info for new extension code. 19065 19066 *Steve Henson* 19067 19068 * Make RSA_NO_PADDING really use no padding. 19069 19070 *Ulf Moeller <ulf@fitug.de>* 19071 19072 * Generate errors when private/public key check is done. 19073 19074 *Ben Laurie* 19075 19076 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 19077 for some CRL extensions and new objects added. 19078 19079 *Steve Henson* 19080 19081 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 19082 key usage extension and fuller support for authority key id. 19083 19084 *Steve Henson* 19085 19086 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 19087 padding method for RSA, which is recommended for new applications in PKCS 19088 #1 v2.0 (RFC 2437, October 1998). 19089 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 19090 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 19091 against Bleichbacher's attack on RSA. 19092 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 19093 Ben Laurie* 19094 19095 * Updates to the new SSL compression code 19096 19097 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19098 19099 * Fix so that the version number in the master secret, when passed 19100 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 19101 (because the server will not accept higher), that the version number 19102 is 0x03,0x01, not 0x03,0x00 19103 19104 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19105 19106 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 19107 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 19108 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 19109 19110 *Steve Henson* 19111 19112 * Support for RAW extensions where an arbitrary extension can be 19113 created by including its DER encoding. See `apps/openssl.cnf` for 19114 an example. 19115 19116 *Steve Henson* 19117 19118 * Make sure latest Perl versions don't interpret some generated C array 19119 code as Perl array code in the crypto/err/err_genc.pl script. 19120 19121 *Lars Weber <3weber@informatik.uni-hamburg.de>* 19122 19123 * Modify ms/do_ms.bat to not generate assembly language makefiles since 19124 not many people have the assembler. Various Win32 compilation fixes and 19125 update to the INSTALL.W32 file with (hopefully) more accurate Win32 19126 build instructions. 19127 19128 *Steve Henson* 19129 19130 * Modify configure script 'Configure' to automatically create crypto/date.h 19131 file under Win32 and also build pem.h from pem.org. New script 19132 util/mkfiles.pl to create the MINFO file on environments that can't do a 19133 'make files': perl util/mkfiles.pl >MINFO should work. 19134 19135 *Steve Henson* 19136 19137 * Major rework of DES function declarations, in the pursuit of correctness 19138 and purity. As a result, many evil casts evaporated, and some weirdness, 19139 too. You may find this causes warnings in your code. Zapping your evil 19140 casts will probably fix them. Mostly. 19141 19142 *Ben Laurie* 19143 19144 * Fix for a typo in asn1.h. Bug fix to object creation script 19145 obj_dat.pl. It considered a zero in an object definition to mean 19146 "end of object": none of the objects in objects.h have any zeros 19147 so it wasn't spotted. 19148 19149 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 19150 19151 * Add support for Triple DES Cipher Block Chaining with Output Feedback 19152 Masking (CBCM). In the absence of test vectors, the best I have been able 19153 to do is check that the decrypt undoes the encrypt, so far. Send me test 19154 vectors if you have them. 19155 19156 *Ben Laurie* 19157 19158 * Correct calculation of key length for export ciphers (too much space was 19159 allocated for null ciphers). This has not been tested! 19160 19161 *Ben Laurie* 19162 19163 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19164 message is now correct (it understands "crypto" and "ssl" on its 19165 command line). There is also now an "update" option. This will update 19166 the util/ssleay.num and util/libeay.num files with any new functions. 19167 If you do a: 19168 perl util/mkdef.pl crypto ssl update 19169 it will update them. 19170 19171 *Steve Henson* 19172 19173 * Overhauled the Perl interface: 19174 - ported BN stuff to OpenSSL's different BN library 19175 - made the perl/ source tree CVS-aware 19176 - renamed the package from SSLeay to OpenSSL (the files still contain 19177 their history because I've copied them in the repository) 19178 - removed obsolete files (the test scripts will be replaced 19179 by better Test::Harness variants in the future) 19180 19181 *Ralf S. Engelschall* 19182 19183 * First cut for a very conservative source tree cleanup: 19184 1. merge various obsolete readme texts into doc/ssleay.txt 19185 where we collect the old documents and readme texts. 19186 2. remove the first part of files where I'm already sure that we no 19187 longer need them because of three reasons: either they are just temporary 19188 files which were left by Eric or they are preserved original files where 19189 I've verified that the diff is also available in the CVS via "cvs diff 19190 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19191 the crypto/md/ stuff). 19192 19193 *Ralf S. Engelschall* 19194 19195 * More extension code. Incomplete support for subject and issuer alt 19196 name, issuer and authority key id. Change the i2v function parameters 19197 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19198 what that's for :-) Fix to ASN1 macro which messed up 19199 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19200 19201 *Steve Henson* 19202 19203 * Preliminary support for ENUMERATED type. This is largely copied from the 19204 INTEGER code. 19205 19206 *Steve Henson* 19207 19208 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19209 19210 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19211 19212 * Make sure `make rehash` target really finds the `openssl` program. 19213 19214 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19215 19216 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19217 like to hear about it if this slows down other processors. 19218 19219 *Ben Laurie* 19220 19221 * Add CygWin32 platform information to Configure script. 19222 19223 *Alan Batie <batie@aahz.jf.intel.com>* 19224 19225 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19226 19227 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19228 19229 * New program nseq to manipulate netscape certificate sequences 19230 19231 *Steve Henson* 19232 19233 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19234 few typos. 19235 19236 *Steve Henson* 19237 19238 * Fixes to BN code. Previously the default was to define BN_RECURSION 19239 but the BN code had some problems that would cause failures when 19240 doing certificate verification and some other functions. 19241 19242 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19243 19244 * Add ASN1 and PEM code to support netscape certificate sequences. 19245 19246 *Steve Henson* 19247 19248 * Add ASN1 and PEM code to support netscape certificate sequences. 19249 19250 *Steve Henson* 19251 19252 * Add several PKIX and private extended key usage OIDs. 19253 19254 *Steve Henson* 19255 19256 * Modify the 'ca' program to handle the new extension code. Modify 19257 openssl.cnf for new extension format, add comments. 19258 19259 *Steve Henson* 19260 19261 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19262 and add a sample to openssl.cnf so req -x509 now adds appropriate 19263 CA extensions. 19264 19265 *Steve Henson* 19266 19267 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19268 error code, add initial support to X509_print() and x509 application. 19269 19270 *Steve Henson* 19271 19272 * Takes a deep breath and start adding X509 V3 extension support code. Add 19273 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19274 stuff is currently isolated and isn't even compiled yet. 19275 19276 *Steve Henson* 19277 19278 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19279 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19280 Removed the versions check from X509 routines when loading extensions: 19281 this allows certain broken certificates that don't set the version 19282 properly to be processed. 19283 19284 *Steve Henson* 19285 19286 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19287 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19288 can still be regenerated with "make depend". 19289 19290 *Ben Laurie* 19291 19292 * Spelling mistake in C version of CAST-128. 19293 19294 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19295 19296 * Changes to the error generation code. The perl script err-code.pl 19297 now reads in the old error codes and retains the old numbers, only 19298 adding new ones if necessary. It also only changes the .err files if new 19299 codes are added. The makefiles have been modified to only insert errors 19300 when needed (to avoid needlessly modifying header files). This is done 19301 by only inserting errors if the .err file is newer than the auto generated 19302 C file. To rebuild all the error codes from scratch (the old behaviour) 19303 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19304 or delete all the .err files. 19305 19306 *Steve Henson* 19307 19308 * CAST-128 was incorrectly implemented for short keys. The C version has 19309 been fixed, but is untested. The assembler versions are also fixed, but 19310 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19311 to regenerate it if needed. 19312 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19313 Hagino <itojun@kame.net>* 19314 19315 * File was opened incorrectly in randfile.c. 19316 19317 *Ulf Möller <ulf@fitug.de>* 19318 19319 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19320 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19321 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19322 al: it's just almost always a UTCTime. Note this patch adds new error 19323 codes so do a "make errors" if there are problems. 19324 19325 *Steve Henson* 19326 19327 * Correct Linux 1 recognition in config. 19328 19329 *Ulf Möller <ulf@fitug.de>* 19330 19331 * Remove pointless MD5 hash when using DSA keys in ca. 19332 19333 *Anonymous <nobody@replay.com>* 19334 19335 * Generate an error if given an empty string as a cert directory. Also 19336 generate an error if handed NULL (previously returned 0 to indicate an 19337 error, but didn't set one). 19338 19339 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19340 19341 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19342 19343 *Ben Laurie* 19344 19345 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19346 parameters. This was causing a warning which killed off the Win32 compile. 19347 19348 *Steve Henson* 19349 19350 * Remove C++ style comments from crypto/bn/bn_local.h. 19351 19352 *Neil Costigan <neil.costigan@celocom.com>* 19353 19354 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19355 based on a text string, looking up short and long names and finally 19356 "dot" format. The "dot" format stuff didn't work. Added new function 19357 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19358 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19359 OID is not part of the table. 19360 19361 *Steve Henson* 19362 19363 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19364 X509_LOOKUP_by_alias(). 19365 19366 *Ben Laurie* 19367 19368 * Sort openssl functions by name. 19369 19370 *Ben Laurie* 19371 19372 * Get the `gendsa` command working and add it to the `list` command. Remove 19373 encryption from sample DSA keys (in case anyone is interested the password 19374 was "1234"). 19375 19376 *Steve Henson* 19377 19378 * Make *all* `*_free` functions accept a NULL pointer. 19379 19380 *Frans Heymans <fheymans@isaserver.be>* 19381 19382 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19383 NULL pointers. 19384 19385 *Anonymous <nobody@replay.com>* 19386 19387 * s_server should send the CAfile as acceptable CAs, not its own cert. 19388 19389 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19390 19391 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19392 19393 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19394 19395 * Temp key "for export" tests were wrong in s3_srvr.c. 19396 19397 *Anonymous <nobody@replay.com>* 19398 19399 * Add prototype for temp key callback functions 19400 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19401 19402 *Ben Laurie* 19403 19404 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19405 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19406 19407 *Steve Henson* 19408 19409 * X509_name_add_entry() freed the wrong thing after an error. 19410 19411 *Arne Ansper <arne@ats.cyber.ee>* 19412 19413 * rsa_eay.c would attempt to free a NULL context. 19414 19415 *Arne Ansper <arne@ats.cyber.ee>* 19416 19417 * BIO_s_socket() had a broken should_retry() on Windoze. 19418 19419 *Arne Ansper <arne@ats.cyber.ee>* 19420 19421 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19422 19423 *Arne Ansper <arne@ats.cyber.ee>* 19424 19425 * Make sure the already existing X509_STORE->depth variable is initialized 19426 in X509_STORE_new(), but document the fact that this variable is still 19427 unused in the certificate verification process. 19428 19429 *Ralf S. Engelschall* 19430 19431 * Fix the various library and `apps/` files to free up pkeys obtained from 19432 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19433 19434 *Steve Henson* 19435 19436 * Fix reference counting in X509_PUBKEY_get(). This makes 19437 demos/maurice/example2.c work, amongst others, probably. 19438 19439 *Steve Henson and Ben Laurie* 19440 19441 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19442 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19443 are no longer created. This way we have a single and consistent command 19444 line interface `openssl <command>`, similar to `cvs <command>`. 19445 19446 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19447 19448 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19449 BIT STRING wrapper always have zero unused bits. 19450 19451 *Steve Henson* 19452 19453 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19454 19455 *Steve Henson* 19456 19457 * Make the top-level INSTALL documentation easier to understand. 19458 19459 *Paul Sutton* 19460 19461 * Makefiles updated to exit if an error occurs in a sub-directory 19462 make (including if user presses ^C) [Paul Sutton] 19463 19464 * Make Montgomery context stuff explicit in RSA data structure. 19465 19466 *Ben Laurie* 19467 19468 * Fix build order of pem and err to allow for generated pem.h. 19469 19470 *Ben Laurie* 19471 19472 * Fix renumbering bug in X509_NAME_delete_entry(). 19473 19474 *Ben Laurie* 19475 19476 * Enhanced the err-ins.pl script so it makes the error library number 19477 global and can add a library name. This is needed for external ASN1 and 19478 other error libraries. 19479 19480 *Steve Henson* 19481 19482 * Fixed sk_insert which never worked properly. 19483 19484 *Steve Henson* 19485 19486 * Fix ASN1 macros so they can handle indefinite length constructed 19487 EXPLICIT tags. Some non standard certificates use these: they can now 19488 be read in. 19489 19490 *Steve Henson* 19491 19492 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19493 into a single doc/ssleay.txt bundle. This way the information is still 19494 preserved but no longer messes up this directory. Now it's new room for 19495 the new set of documentation files. 19496 19497 *Ralf S. Engelschall* 19498 19499 * SETs were incorrectly DER encoded. This was a major pain, because they 19500 shared code with SEQUENCEs, which aren't coded the same. This means that 19501 almost everything to do with SETs or SEQUENCEs has either changed name or 19502 number of arguments. 19503 19504 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19505 19506 * Fix test data to work with the above. 19507 19508 *Ben Laurie* 19509 19510 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19511 was already fixed by Eric for 0.9.1 it seems. 19512 19513 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19514 19515 * Autodetect FreeBSD3. 19516 19517 *Ben Laurie* 19518 19519 * Fix various bugs in Configure. This affects the following platforms: 19520 nextstep 19521 ncr-scde 19522 unixware-2.0 19523 unixware-2.0-pentium 19524 sco5-cc. 19525 19526 *Ben Laurie* 19527 19528 * Eliminate generated files from CVS. Reorder tests to regenerate files 19529 before they are needed. 19530 19531 *Ben Laurie* 19532 19533 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19534 19535 *Ben Laurie* 19536 19537### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19538 19539 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19540 changed SSLeay to OpenSSL in version strings. 19541 19542 *Ralf S. Engelschall* 19543 19544 * Some fixups to the top-level documents. 19545 19546 *Paul Sutton* 19547 19548 * Fixed the nasty bug where rsaref.h was not found under compile-time 19549 because the symlink to include/ was missing. 19550 19551 *Ralf S. Engelschall* 19552 19553 * Incorporated the popular no-RSA/DSA-only patches 19554 which allow to compile an RSA-free SSLeay. 19555 19556 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19557 19558 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19559 when "ssleay" is still not found. 19560 19561 *Ralf S. Engelschall* 19562 19563 * Added more platforms to Configure: Cray T3E, HPUX 11, 19564 19565 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19566 19567 * Updated the README file. 19568 19569 *Ralf S. Engelschall* 19570 19571 * Added various .cvsignore files in the CVS repository subdirs 19572 to make a "cvs update" really silent. 19573 19574 *Ralf S. Engelschall* 19575 19576 * Recompiled the error-definition header files and added 19577 missing symbols to the Win32 linker tables. 19578 19579 *Ralf S. Engelschall* 19580 19581 * Cleaned up the top-level documents; 19582 o new files: CHANGES and LICENSE 19583 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19584 o merged COPYRIGHT into LICENSE 19585 o removed obsolete TODO file 19586 o renamed MICROSOFT to INSTALL.W32 19587 19588 *Ralf S. Engelschall* 19589 19590 * Removed dummy files from the 0.9.1b source tree: 19591 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19592 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19593 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19594 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19595 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19596 19597 *Ralf S. Engelschall* 19598 19599 * Added various platform portability fixes. 19600 19601 *Mark J. Cox* 19602 19603 * The Genesis of the OpenSSL rpject: 19604 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19605 Young and Tim J. Hudson created while they were working for C2Net until 19606 summer 1998. 19607 19608 *The OpenSSL Project* 19609 19610### Changes between 0.9.0b and 0.9.1b [not released] 19611 19612 * Updated a few CA certificates under certs/ 19613 19614 *Eric A. Young* 19615 19616 * Changed some BIGNUM api stuff. 19617 19618 *Eric A. Young* 19619 19620 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19621 DGUX x86, Linux Alpha, etc. 19622 19623 *Eric A. Young* 19624 19625 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19626 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19627 available). 19628 19629 *Eric A. Young* 19630 19631 * Add -strparse option to asn1pars program which parses nested 19632 binary structures 19633 19634 *Dr Stephen Henson <shenson@bigfoot.com>* 19635 19636 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19637 19638 *Eric A. Young* 19639 19640 * DSA fix for "ca" program. 19641 19642 *Eric A. Young* 19643 19644 * Added "-genkey" option to "dsaparam" program. 19645 19646 *Eric A. Young* 19647 19648 * Added RIPE MD160 (rmd160) message digest. 19649 19650 *Eric A. Young* 19651 19652 * Added -a (all) option to "ssleay version" command. 19653 19654 *Eric A. Young* 19655 19656 * Added PLATFORM define which is the id given to Configure. 19657 19658 *Eric A. Young* 19659 19660 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19661 19662 *Eric A. Young* 19663 19664 * Extended the ASN.1 parser routines. 19665 19666 *Eric A. Young* 19667 19668 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19669 19670 *Eric A. Young* 19671 19672 * Added a BN_CTX to the BN library. 19673 19674 *Eric A. Young* 19675 19676 * Fixed the weak key values in DES library 19677 19678 *Eric A. Young* 19679 19680 * Changed API in EVP library for cipher aliases. 19681 19682 *Eric A. Young* 19683 19684 * Added support for RC2/64bit cipher. 19685 19686 *Eric A. Young* 19687 19688 * Converted the lhash library to the crypto/mem.c functions. 19689 19690 *Eric A. Young* 19691 19692 * Added more recognized ASN.1 object ids. 19693 19694 *Eric A. Young* 19695 19696 * Added more RSA padding checks for SSL/TLS. 19697 19698 *Eric A. Young* 19699 19700 * Added BIO proxy/filter functionality. 19701 19702 *Eric A. Young* 19703 19704 * Added extra_certs to SSL_CTX which can be used 19705 send extra CA certificates to the client in the CA cert chain sending 19706 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19707 19708 *Eric A. Young* 19709 19710 * Now Fortezza is denied in the authentication phase because 19711 this is key exchange mechanism is not supported by SSLeay at all. 19712 19713 *Eric A. Young* 19714 19715 * Additional PKCS1 checks. 19716 19717 *Eric A. Young* 19718 19719 * Support the string "TLSv1" for all TLS v1 ciphers. 19720 19721 *Eric A. Young* 19722 19723 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19724 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19725 19726 *Eric A. Young* 19727 19728 * Fixed a few memory leaks. 19729 19730 *Eric A. Young* 19731 19732 * Fixed various code and comment typos. 19733 19734 *Eric A. Young* 19735 19736 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19737 bytes sent in the client random. 19738 19739 *Edward Bishop <ebishop@spyglass.com>* 19740 19741<!-- Links --> 19742 19743[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 19744[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807 19745[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 19746[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 19747[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 19748[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 19749[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 19750[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 19751[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 19752[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 19753[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 19754[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19755[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19756[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19757[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19758[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19759[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19760[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19761[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19762[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19763[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19764[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 19765[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19766[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19767[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19768[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19769[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19770[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19771[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19772[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19773[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19774[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19775[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 19776[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 19777[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 19778[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 19779[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 19780[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 19781[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 19782[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 19783[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 19784[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 19785[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 19786[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 19787[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 19788[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 19789[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 19790[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 19791[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 19792[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 19793[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 19794[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 19795[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 19796[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 19797[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 19798[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 19799[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 19800[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 19801[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 19802[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 19803[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 19804[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 19805[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 19806[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 19807[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 19808[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 19809[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 19810[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 19811[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 19812[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 19813[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 19814[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 19815[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 19816[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 19817[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 19818[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 19819[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 19820[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 19821[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 19822[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 19823[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 19824[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 19825[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 19826[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 19827[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 19828[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 19829[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 19830[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 19831[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 19832[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 19833[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 19834[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 19835[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 19836[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 19837[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 19838[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 19839[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 19840[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 19841[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 19842[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 19843[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 19844[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 19845[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 19846[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 19847[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 19848[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 19849[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 19850[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 19851[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 19852[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 19853[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 19854[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 19855[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 19856[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 19857[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 19858[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 19859[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 19860[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 19861[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 19862[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 19863[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 19864[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 19865[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 19866[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 19867[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 19868[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 19869[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 19870[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 19871[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 19872[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 19873[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 19874[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 19875[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 19876[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 19877[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 19878[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 19879[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 19880[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 19881[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 19882[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 19883[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 19884[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 19885[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 19886[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 19887[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 19888[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 19889[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 19890[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 19891[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 19892[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 19893[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 19894[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 19895[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 19896[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 19897[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 19898[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 19899[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 19900[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 19901[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 19902[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 19903[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 19904[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 19905[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 19906[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 19907[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 19908[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 19909[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 19910[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 19911[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 19912[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 19913[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 19914[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 19915[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 19916[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 19917[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 19918[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 19919[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 19920[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 19921[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 19922[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 19923[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 19924[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 19925[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 19926[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 19927