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 3.0.9 and 3.0.10 [1 Aug 2023] 32 33 * Fix excessive time spent checking DH q parameter value. 34 35 The function DH_check() performs various checks on DH parameters. After 36 fixing CVE-2023-3446 it was discovered that a large q parameter value can 37 also trigger an overly long computation during some of these checks. 38 A correct q value, if present, cannot be larger than the modulus p 39 parameter, thus it is unnecessary to perform these checks if q is larger 40 than p. 41 42 If DH_check() is called with such q parameter value, 43 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 44 intensive checks are skipped. 45 46 ([CVE-2023-3817]) 47 48 *Tomáš Mráz* 49 50 * Fix DH_check() excessive time with over sized modulus. 51 52 The function DH_check() performs various checks on DH parameters. One of 53 those checks confirms that the modulus ("p" parameter) is not too large. 54 Trying to use a very large modulus is slow and OpenSSL will not normally use 55 a modulus which is over 10,000 bits in length. 56 57 However the DH_check() function checks numerous aspects of the key or 58 parameters that have been supplied. Some of those checks use the supplied 59 modulus value even if it has already been found to be too large. 60 61 A new limit has been added to DH_check of 32,768 bits. Supplying a 62 key/parameters with a modulus over this size will simply cause DH_check() to 63 fail. 64 65 ([CVE-2023-3446]) 66 67 *Matt Caswell* 68 69 * Do not ignore empty associated data entries with AES-SIV. 70 71 The AES-SIV algorithm allows for authentication of multiple associated 72 data entries along with the encryption. To authenticate empty data the 73 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 74 with NULL pointer as the output buffer and 0 as the input buffer length. 75 The AES-SIV implementation in OpenSSL just returns success for such call 76 instead of performing the associated data authentication operation. 77 The empty data thus will not be authenticated. ([CVE-2023-2975]) 78 79 Thanks to Juerg Wullschleger (Google) for discovering the issue. 80 81 The fix changes the authentication tag value and the ciphertext for 82 applications that use empty associated data entries with AES-SIV. 83 To decrypt data encrypted with previous versions of OpenSSL the application 84 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 85 entries. 86 87 *Tomáš Mráz* 88 89### Changes between 3.0.8 and 3.0.9 [30 May 2023] 90 91 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 92 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 93 94 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 95 numeric text form. For gigantic sub-identifiers, this would take a very 96 long time, the time complexity being O(n^2) where n is the size of that 97 sub-identifier. ([CVE-2023-2650]) 98 99 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 100 IDENTIFIER to canonical numeric text form if the size of that OBJECT 101 IDENTIFIER is 586 bytes or less, and fail otherwise. 102 103 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 104 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 105 most 128 sub-identifiers, and that the maximum value that each sub- 106 identifier may have is 2^32-1 (4294967295 decimal). 107 108 For each byte of every sub-identifier, only the 7 lower bits are part of 109 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 110 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 111 bytes. 112 113 *Richard Levitte* 114 115 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 116 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 117 trigger a crash of an application using AES-XTS decryption if the memory 118 just after the buffer being decrypted is not mapped. 119 Thanks to Anton Romanov (Amazon) for discovering the issue. 120 ([CVE-2023-1255]) 121 122 *Nevine Ebeid* 123 124 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 125 The previous fix for this timing side channel turned out to cause 126 a severe 2-3x performance regression in the typical use case 127 compared to 3.0.7. The new fix uses existing constant time 128 code paths, and restores the previous performance level while 129 fully eliminating all existing timing side channels. 130 The fix was developed by Bernd Edlinger with testing support 131 by Hubert Kario. 132 133 *Bernd Edlinger* 134 135 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 136 that it does not enable policy checking. Thanks to David Benjamin for 137 discovering this issue. 138 ([CVE-2023-0466]) 139 140 *Tomáš Mráz* 141 142 * Fixed an issue where invalid certificate policies in leaf certificates are 143 silently ignored by OpenSSL and other certificate policy checks are skipped 144 for that certificate. A malicious CA could use this to deliberately assert 145 invalid certificate policies in order to circumvent policy checking on the 146 certificate altogether. 147 ([CVE-2023-0465]) 148 149 *Matt Caswell* 150 151 * Limited the number of nodes created in a policy tree to mitigate 152 against CVE-2023-0464. The default limit is set to 1000 nodes, which 153 should be sufficient for most installations. If required, the limit 154 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 155 time define to a desired maximum number of nodes or zero to allow 156 unlimited growth. 157 ([CVE-2023-0464]) 158 159 *Paul Dale* 160 161### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 162 163 * Fixed NULL dereference during PKCS7 data verification. 164 165 A NULL pointer can be dereferenced when signatures are being 166 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 167 algorithm used for the signature is known to the OpenSSL library but 168 the implementation of the hash algorithm is not available the digest 169 initialization will fail. There is a missing check for the return 170 value from the initialization function which later leads to invalid 171 usage of the digest API most likely leading to a crash. 172 ([CVE-2023-0401]) 173 174 PKCS7 data is processed by the SMIME library calls and also by the 175 time stamp (TS) library calls. The TLS implementation in OpenSSL does 176 not call these functions however third party applications would be 177 affected if they call these functions to verify signatures on untrusted 178 data. 179 180 *Tomáš Mráz* 181 182 * Fixed X.400 address type confusion in X.509 GeneralName. 183 184 There is a type confusion vulnerability relating to X.400 address processing 185 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 186 but the public structure definition for GENERAL_NAME incorrectly specified 187 the type of the x400Address field as ASN1_TYPE. This field is subsequently 188 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 189 than an ASN1_STRING. 190 191 When CRL checking is enabled (i.e. the application sets the 192 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 193 pass arbitrary pointers to a memcmp call, enabling them to read memory 194 contents or enact a denial of service. 195 ([CVE-2023-0286]) 196 197 *Hugo Landau* 198 199 * Fixed NULL dereference validating DSA public key. 200 201 An invalid pointer dereference on read can be triggered when an 202 application tries to check a malformed DSA public key by the 203 EVP_PKEY_public_check() function. This will most likely lead 204 to an application crash. This function can be called on public 205 keys supplied from untrusted sources which could allow an attacker 206 to cause a denial of service attack. 207 208 The TLS implementation in OpenSSL does not call this function 209 but applications might call the function if there are additional 210 security requirements imposed by standards such as FIPS 140-3. 211 ([CVE-2023-0217]) 212 213 *Shane Lontis, Tomáš Mráz* 214 215 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 216 217 An invalid pointer dereference on read can be triggered when an 218 application tries to load malformed PKCS7 data with the 219 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 220 221 The result of the dereference is an application crash which could 222 lead to a denial of service attack. The TLS implementation in OpenSSL 223 does not call this function however third party applications might 224 call these functions on untrusted data. 225 ([CVE-2023-0216]) 226 227 *Tomáš Mráz* 228 229 * Fixed Use-after-free following BIO_new_NDEF. 230 231 The public API function BIO_new_NDEF is a helper function used for 232 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 233 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 234 be called directly by end user applications. 235 236 The function receives a BIO from the caller, prepends a new BIO_f_asn1 237 filter BIO onto the front of it to form a BIO chain, and then returns 238 the new head of the BIO chain to the caller. Under certain conditions, 239 for example if a CMS recipient public key is invalid, the new filter BIO 240 is freed and the function returns a NULL result indicating a failure. 241 However, in this case, the BIO chain is not properly cleaned up and the 242 BIO passed by the caller still retains internal pointers to the previously 243 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 244 then a use-after-free will occur. This will most likely result in a crash. 245 ([CVE-2023-0215]) 246 247 *Viktor Dukhovni, Matt Caswell* 248 249 * Fixed Double free after calling PEM_read_bio_ex. 250 251 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 252 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 253 data. If the function succeeds then the "name_out", "header" and "data" 254 arguments are populated with pointers to buffers containing the relevant 255 decoded data. The caller is responsible for freeing those buffers. It is 256 possible to construct a PEM file that results in 0 bytes of payload data. 257 In this case PEM_read_bio_ex() will return a failure code but will populate 258 the header argument with a pointer to a buffer that has already been freed. 259 If the caller also frees this buffer then a double free will occur. This 260 will most likely lead to a crash. 261 262 The functions PEM_read_bio() and PEM_read() are simple wrappers around 263 PEM_read_bio_ex() and therefore these functions are also directly affected. 264 265 These functions are also called indirectly by a number of other OpenSSL 266 functions including PEM_X509_INFO_read_bio_ex() and 267 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 268 internal uses of these functions are not vulnerable because the caller does 269 not free the header argument if PEM_read_bio_ex() returns a failure code. 270 ([CVE-2022-4450]) 271 272 *Kurt Roeckx, Matt Caswell* 273 274 * Fixed Timing Oracle in RSA Decryption. 275 276 A timing based side channel exists in the OpenSSL RSA Decryption 277 implementation which could be sufficient to recover a plaintext across 278 a network in a Bleichenbacher style attack. To achieve a successful 279 decryption an attacker would have to be able to send a very large number 280 of trial messages for decryption. The vulnerability affects all RSA padding 281 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 282 ([CVE-2022-4304]) 283 284 *Dmitry Belyavsky, Hubert Kario* 285 286 * Fixed X.509 Name Constraints Read Buffer Overflow. 287 288 A read buffer overrun can be triggered in X.509 certificate verification, 289 specifically in name constraint checking. The read buffer overrun might 290 result in a crash which could lead to a denial of service attack. 291 In a TLS client, this can be triggered by connecting to a malicious 292 server. In a TLS server, this can be triggered if the server requests 293 client authentication and a malicious client connects. 294 ([CVE-2022-4203]) 295 296 *Viktor Dukhovni* 297 298 * Fixed X.509 Policy Constraints Double Locking security issue. 299 300 If an X.509 certificate contains a malformed policy constraint and 301 policy processing is enabled, then a write lock will be taken twice 302 recursively. On some operating systems (most widely: Windows) this 303 results in a denial of service when the affected process hangs. Policy 304 processing being enabled on a publicly facing server is not considered 305 to be a common setup. 306 ([CVE-2022-3996]) 307 308 *Paul Dale* 309 310 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 311 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 312 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 313 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 314 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 315 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 316 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 317 for legacy EC and SM2 keys is also changed similarly to honor the 318 equivalent conversion format flag as specified in the underlying 319 `EC_KEY` object being exported to a provider, when this function is 320 called through `EVP_PKEY_export()`. 321 322 *Nicola Tuveri* 323 324### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 325 326 * Fixed two buffer overflows in punycode decoding functions. 327 328 A buffer overrun can be triggered in X.509 certificate verification, 329 specifically in name constraint checking. Note that this occurs after 330 certificate chain signature verification and requires either a CA to 331 have signed the malicious certificate or for the application to continue 332 certificate verification despite failure to construct a path to a trusted 333 issuer. 334 335 In a TLS client, this can be triggered by connecting to a malicious 336 server. In a TLS server, this can be triggered if the server requests 337 client authentication and a malicious client connects. 338 339 An attacker can craft a malicious email address to overflow 340 an arbitrary number of bytes containing the `.` character (decimal 46) 341 on the stack. This buffer overflow could result in a crash (causing a 342 denial of service). 343 ([CVE-2022-3786]) 344 345 An attacker can craft a malicious email address to overflow four 346 attacker-controlled bytes on the stack. This buffer overflow could 347 result in a crash (causing a denial of service) or potentially remote code 348 execution depending on stack layout for any given platform/compiler. 349 ([CVE-2022-3602]) 350 351 *Paul Dale* 352 353 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 354 parameters in OpenSSL code. 355 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 356 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 357 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 358 Using these invalid names may cause algorithms to use slower methods 359 that ignore the CRT parameters. 360 361 *Shane Lontis* 362 363 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 364 operations. 365 366 *Tomáš Mráz* 367 368 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 369 data to be signed before signing the certificate. 370 371 *Gibeom Gwon* 372 373 * Added RIPEMD160 to the default provider. 374 375 *Paul Dale* 376 377 * Ensured that the key share group sent or accepted for the key exchange 378 is allowed for the protocol version. 379 380 *Matt Caswell* 381 382### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 383 384 * OpenSSL supports creating a custom cipher via the legacy 385 EVP_CIPHER_meth_new() function and associated function calls. This function 386 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 387 to use the new provider mechanism in order to implement custom ciphers. 388 389 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 390 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 391 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 392 and decryption initialisation functions). Instead of using the custom cipher 393 directly it incorrectly tries to fetch an equivalent cipher from the 394 available providers. An equivalent cipher is found based on the NID passed to 395 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 396 given cipher. However it is possible for an application to incorrectly pass 397 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 398 is used in this way the OpenSSL encryption/decryption initialisation function 399 will match the NULL cipher as being equivalent and will fetch this from the 400 available providers. This will succeed if the default provider has been 401 loaded (or if a third party provider has been loaded that offers this 402 cipher). Using the NULL cipher means that the plaintext is emitted as the 403 ciphertext. 404 405 Applications are only affected by this issue if they call 406 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 407 encryption/decryption initialisation function. Applications that only use 408 SSL/TLS are not impacted by this issue. 409 ([CVE-2022-3358]) 410 411 *Matt Caswell* 412 413 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 414 on MacOS 10.11 415 416 *Richard Levitte* 417 418 * Fixed the linux-mips64 Configure target which was missing the 419 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 420 platform. 421 422 *Adam Joseph* 423 424 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 425 ticket 426 427 *Matt Caswell* 428 429 * Correctly handle a retransmitted ClientHello in DTLS 430 431 *Matt Caswell* 432 433 * Fixed detection of ktls support in cross-compile environment on Linux 434 435 *Tomas Mraz* 436 437 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 438 against 3.0.x 439 440 *Paul Dale* 441 442 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 443 report correct results in some cases 444 445 *Matt Caswell* 446 447 * Fix UWP builds by defining VirtualLock 448 449 *Charles Milette* 450 451 * For known safe primes use the minimum key length according to RFC 7919. 452 Longer private key sizes unnecessarily raise the cycles needed to compute the 453 shared secret without any increase of the real security. This fixes a 454 regression from 1.1.1 where these shorter keys were generated for the known 455 safe primes. 456 457 *Tomas Mraz* 458 459 * Added the loongarch64 target 460 461 *Shi Pujin* 462 463 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 464 only passed to the FIPS provider and not to the default or legacy provider. 465 466 *Juergen Christ* 467 468 * Fixed reported performance degradation on aarch64. Restored the 469 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 470 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 471 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 472 The new algorithm is still used for 32 bit targets. 473 474 *Bernd Edlinger* 475 476 * Added a missing header for memcmp that caused compilation failure on some 477 platforms 478 479 *Gregor Jasny* 480 481### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 482 483 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 484 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 485 This issue makes the RSA implementation with 2048 bit private keys 486 incorrect on such machines and memory corruption will happen during 487 the computation. As a consequence of the memory corruption an attacker 488 may be able to trigger a remote code execution on the machine performing 489 the computation. 490 491 SSL/TLS servers or other servers using 2048 bit RSA private keys running 492 on machines supporting AVX512IFMA instructions of the X86_64 architecture 493 are affected by this issue. 494 ([CVE-2022-2274]) 495 496 *Xi Ruoyao* 497 498 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 499 implementation would not encrypt the entirety of the data under some 500 circumstances. This could reveal sixteen bytes of data that was 501 preexisting in the memory that wasn't written. In the special case of 502 "in place" encryption, sixteen bytes of the plaintext would be revealed. 503 504 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 505 they are both unaffected. 506 ([CVE-2022-2097]) 507 508 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 509 510### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 511 512 * In addition to the c_rehash shell command injection identified in 513 CVE-2022-1292, further bugs where the c_rehash script does not 514 properly sanitise shell metacharacters to prevent command injection have been 515 fixed. 516 517 When the CVE-2022-1292 was fixed it was not discovered that there 518 are other places in the script where the file names of certificates 519 being hashed were possibly passed to a command executed through the shell. 520 521 This script is distributed by some operating systems in a manner where 522 it is automatically executed. On such operating systems, an attacker 523 could execute arbitrary commands with the privileges of the script. 524 525 Use of the c_rehash script is considered obsolete and should be replaced 526 by the OpenSSL rehash command line tool. 527 (CVE-2022-2068) 528 529 *Daniel Fiala, Tomáš Mráz* 530 531 * Case insensitive string comparison no longer uses locales. It has instead 532 been directly implemented. 533 534 *Paul Dale* 535 536### Changes between 3.0.2 and 3.0.3 [3 May 2022] 537 538 * Case insensitive string comparison is reimplemented via new locale-agnostic 539 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 540 comparison. The previous implementation had problems when the Turkish locale 541 was used. 542 543 *Dmitry Belyavskiy* 544 545 * Fixed a bug in the c_rehash script which was not properly sanitising shell 546 metacharacters to prevent command injection. This script is distributed by 547 some operating systems in a manner where it is automatically executed. On 548 such operating systems, an attacker could execute arbitrary commands with the 549 privileges of the script. 550 551 Use of the c_rehash script is considered obsolete and should be replaced 552 by the OpenSSL rehash command line tool. 553 (CVE-2022-1292) 554 555 *Tomáš Mráz* 556 557 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 558 certificate on an OCSP response. The bug caused the function in the case 559 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 560 response (meaning a successful verification) even in the case where the 561 response signing certificate fails to verify. 562 563 It is anticipated that most users of `OCSP_basic_verify` will not use the 564 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 565 a negative value (indicating a fatal error) in the case of a certificate 566 verification failure. The normal expected return value in this case would be 567 0. 568 569 This issue also impacts the command line OpenSSL "ocsp" application. When 570 verifying an ocsp response with the "-no_cert_checks" option the command line 571 application will report that the verification is successful even though it 572 has in fact failed. In this case the incorrect successful response will also 573 be accompanied by error messages showing the failure and contradicting the 574 apparently successful result. 575 ([CVE-2022-1343]) 576 577 *Matt Caswell* 578 579 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 580 AAD data as the MAC key. This made the MAC key trivially predictable. 581 582 An attacker could exploit this issue by performing a man-in-the-middle attack 583 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 584 that the modified data would still pass the MAC integrity check. 585 586 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 587 endpoint will always be rejected by the recipient and the connection will 588 fail at that point. Many application protocols require data to be sent from 589 the client to the server first. Therefore, in such a case, only an OpenSSL 590 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 591 592 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 593 sent in both directions. In this case both clients and servers could be 594 affected, regardless of the application protocol. 595 596 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 597 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 598 the handshake when using this ciphersuite. 599 600 The confidentiality of data is not impacted by this issue, i.e. an attacker 601 cannot decrypt data that has been encrypted using this ciphersuite - they can 602 only modify it. 603 604 In order for this attack to work both endpoints must legitimately negotiate 605 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 606 OpenSSL 3.0, and is not available within the default provider or the default 607 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 608 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 609 following must have occurred: 610 611 1) OpenSSL must have been compiled with the (non-default) compile time option 612 enable-weak-ssl-ciphers 613 614 2) OpenSSL must have had the legacy provider explicitly loaded (either 615 through application code or via configuration) 616 617 3) The ciphersuite must have been explicitly added to the ciphersuite list 618 619 4) The libssl security level must have been set to 0 (default is 1) 620 621 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 622 623 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 624 others that both endpoints have in common 625 (CVE-2022-1434) 626 627 *Matt Caswell* 628 629 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 630 occuppied by the removed hash table entries. 631 632 This function is used when decoding certificates or keys. If a long lived 633 process periodically decodes certificates or keys its memory usage will 634 expand without bounds and the process might be terminated by the operating 635 system causing a denial of service. Also traversing the empty hash table 636 entries will take increasingly more time. 637 638 Typically such long lived processes might be TLS clients or TLS servers 639 configured to accept client certificate authentication. 640 (CVE-2022-1473) 641 642 *Hugo Landau, Aliaksei Levin* 643 644 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 645 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 646 statistics are no longer supported. For compatibility, these statistics are 647 still listed in the output but are now always reported as zero. 648 649 *Hugo Landau* 650 651### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 652 653 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 654 for non-prime moduli. 655 656 Internally this function is used when parsing certificates that contain 657 elliptic curve public keys in compressed form or explicit elliptic curve 658 parameters with a base point encoded in compressed form. 659 660 It is possible to trigger the infinite loop by crafting a certificate that 661 has invalid explicit curve parameters. 662 663 Since certificate parsing happens prior to verification of the certificate 664 signature, any process that parses an externally supplied certificate may thus 665 be subject to a denial of service attack. The infinite loop can also be 666 reached when parsing crafted private keys as they can contain explicit 667 elliptic curve parameters. 668 669 Thus vulnerable situations include: 670 671 - TLS clients consuming server certificates 672 - TLS servers consuming client certificates 673 - Hosting providers taking certificates or private keys from customers 674 - Certificate authorities parsing certification requests from subscribers 675 - Anything else which parses ASN.1 elliptic curve parameters 676 677 Also any other applications that use the BN_mod_sqrt() where the attacker 678 can control the parameter values are vulnerable to this DoS issue. 679 ([CVE-2022-0778]) 680 681 *Tomáš Mráz* 682 683 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 684 to the list of ciphersuites providing Perfect Forward Secrecy as 685 required by SECLEVEL >= 3. 686 687 *Dmitry Belyavskiy, Nicola Tuveri* 688 689 * Made the AES constant time code for no-asm configurations 690 optional due to the resulting 95% performance degradation. 691 The AES constant time code can be enabled, for no assembly 692 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 693 694 *Paul Dale* 695 696 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 697 passphrase strings. 698 699 *Darshan Sen* 700 701 * The negative return value handling of the certificate verification callback 702 was reverted. The replacement is to set the verification retry state with 703 the SSL_set_retry_verify() function. 704 705 *Tomáš Mráz* 706 707### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 708 709 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 710 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 711 verify a certificate supplied by a server. That function may return a 712 negative return value to indicate an internal error (for example out of 713 memory). Such a negative return value is mishandled by OpenSSL and will cause 714 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 715 success and a subsequent call to SSL_get_error() to return the value 716 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 717 returned by OpenSSL if the application has previously called 718 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 719 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 720 totally unexpected and applications may not behave correctly as a result. The 721 exact behaviour will depend on the application but it could result in 722 crashes, infinite loops or other similar incorrect responses. 723 724 This issue is made more serious in combination with a separate bug in OpenSSL 725 3.0 that will cause X509_verify_cert() to indicate an internal error when 726 processing a certificate chain. This will occur where a certificate does not 727 include the Subject Alternative Name extension but where a Certificate 728 Authority has enforced name constraints. This issue can occur even with valid 729 chains. 730 ([CVE-2021-4044]) 731 732 *Matt Caswell* 733 734 * Corrected a few file name and file reference bugs in the build, 735 installation and setup scripts, which lead to installation verification 736 failures. Slightly enhanced the installation verification script. 737 738 *Richard Levitte* 739 740 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 741 keys. 742 743 *Richard Levitte* 744 745 * Fixed PVK encoder to properly query for the passphrase. 746 747 *Tomáš Mráz* 748 749 * Multiple fixes in the OSSL_HTTP API functions. 750 751 *David von Oheimb* 752 753 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 754 OSSL_PARAM_INTEGER data type and return error on negative numbers 755 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 756 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 757 758 *Richard Levitte* 759 760 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 761 762 *Tomáš Mráz* 763 764 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 765 766 *Allan Jude* 767 768 * Multiple threading fixes. 769 770 *Matt Caswell* 771 772 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 773 774 *Tomáš Mráz* 775 776 * Allow fetching an operation from the provider that owns an unexportable key 777 as a fallback if that is still allowed by the property query. 778 779 *Richard Levitte* 780 781### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 782 783 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 784 deprecated. 785 786 *Matt Caswell* 787 788 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 789 S390X capability vector to zero. This simplifies testing of different code 790 paths on S390X architecture. 791 792 *Patrick Steuer* 793 794 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 795 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 796 SP 800-38D". The communication will fail at this point. 797 798 *Paul Dale* 799 800 * The EC_GROUP_clear_free() function is deprecated as there is nothing 801 confidential in EC_GROUP data. 802 803 *Nicola Tuveri* 804 805 * The byte order mark (BOM) character is ignored if encountered at the 806 beginning of a PEM-formatted file. 807 808 *Dmitry Belyavskiy* 809 810 * Added CMS support for the Russian GOST algorithms. 811 812 *Dmitry Belyavskiy* 813 814 * Due to move of the implementation of cryptographic operations 815 to the providers, validation of various operation parameters can 816 be postponed until the actual operation is executed where previously 817 it happened immediately when an operation parameter was set. 818 819 For example when setting an unsupported curve with 820 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 821 fail but later keygen operations with the EVP_PKEY_CTX will fail. 822 823 *OpenSSL team members and many third party contributors* 824 825 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 826 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 827 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 828 instead to retrieve these algorithms from a provider. 829 830 *Shane Lontis* 831 832 * On build targets where the multilib postfix is set in the build 833 configuration the libdir directory was changing based on whether 834 the lib directory with the multilib postfix exists on the system 835 or not. This unpredictable behavior was removed and eventual 836 multilib postfix is now always added to the default libdir. Use 837 `--libdir=lib` to override the libdir if adding the postfix is 838 undesirable. 839 840 *Jan Lána* 841 842 * The triple DES key wrap functionality now conforms to RFC 3217 but is 843 no longer interoperable with OpenSSL 1.1.1. 844 845 *Paul Dale* 846 847 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 848 function codes, this function can only cause problems for calling 849 applications. 850 851 *Paul Dale* 852 853 * Add a configurable flag to output date formats as ISO 8601. Does not 854 change the default date format. 855 856 *William Edmisten* 857 858 * Version of MSVC earlier than 1300 could get link warnings, which could 859 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 860 Support for this flag has been removed. 861 862 *Rich Salz* 863 864 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 865 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 866 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 867 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 868 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 869 870 *Rich Salz* 871 872 * The signatures of the functions to get and set options on SSL and 873 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 874 Some source code changes may be required. 875 876 *Rich Salz* 877 878 * The public definitions of conf_method_st and conf_st have been 879 deprecated. They will be made opaque in a future release. 880 881 *Rich Salz and Tomáš Mráz* 882 883 * Client-initiated renegotiation is disabled by default. To allow it, use 884 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 885 flag, or the "ClientRenegotiation" config parameter as appropriate. 886 887 *Rich Salz* 888 889 * Add "abspath" and "includedir" pragma's to config files, to prevent, 890 or modify relative pathname inclusion. 891 892 *Rich Salz* 893 894 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 895 validated. Please consult the README-FIPS and 896 README-PROVIDERS files, as well as the migration guide. 897 898 *OpenSSL team members and many third party contributors* 899 900 * For the key types DH and DHX the allowed settable parameters are now different. 901 902 *Shane Lontis* 903 904 * The openssl commands that read keys, certificates, and CRLs now 905 automatically detect the PEM or DER format of the input files. 906 907 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 908 909 * Added enhanced PKCS#12 APIs which accept a library context. 910 911 *Jon Spillett* 912 913 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 914 915 *Matt Caswell* 916 917 * Added support for Kernel TLS (KTLS). 918 919 *Boris Pismenny, John Baldwin and Andrew Gallatin* 920 921 * Support for RFC 5746 secure renegotiation is now required by default for 922 SSL or TLS connections to succeed. 923 924 *Benjamin Kaduk* 925 926 * The signature of the `copy` functional parameter of the 927 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 928 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 929 the signature of the `pub_decode` functional parameter of the 930 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 931 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 932 933 *David von Oheimb* 934 935 * The error return values from some control calls (ctrl) have changed. 936 937 *Paul Dale* 938 939 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 940 941 *Shane Lontis* 942 943 * Many functions in the EVP_ namespace that are getters of values from 944 implementations or contexts were renamed to include get or get0 in their 945 names. Old names are provided as macro aliases for compatibility and 946 are not deprecated. 947 948 *Tomáš Mráz* 949 950 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 951 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 952 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 953 are deprecated. 954 955 *Tomáš Mráz* 956 957 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 958 more key types. 959 960 * The output from the command line applications may have minor 961 changes. 962 963 *Paul Dale* 964 965 * The output from numerous "printing" may have minor changes. 966 967 *David von Oheimb* 968 969 * Windows thread synchronization uses read/write primitives (SRWLock) when 970 supported by the OS, otherwise CriticalSection continues to be used. 971 972 *Vincent Drake* 973 974 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 975 work on read only BIO source/sinks that do not support these functions. 976 This allows piping or redirection of a file BIO using stdin to be buffered 977 into memory. This is used internally in OSSL_DECODER_from_bio(). 978 979 *Shane Lontis* 980 981 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 982 this function would return one of the values OSSL_STORE_INFO_NAME, 983 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 984 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 985 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 986 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 987 using this function should be amended to handle the changed return value. 988 989 *Richard Levitte* 990 991 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 992 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 993 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 994 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 995 contains more than one certificate identifier: This means that all 996 certificates referenced there MUST be part of the validation chain. 997 998 *David von Oheimb* 999 1000 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 1001 RC5, DESX and DES have been moved to the legacy provider. 1002 1003 *Matt Caswell* 1004 1005 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 1006 RIPEMD-160 have been moved to the legacy provider. 1007 1008 *Matt Caswell* 1009 1010 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 1011 provided key. 1012 1013 *Dmitry Belyavskiy* 1014 1015 * The deprecated functions EVP_PKEY_get0_RSA(), 1016 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 1017 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 1018 well as the similarly named "get1" functions behave differently in 1019 OpenSSL 3.0. 1020 1021 *Matt Caswell* 1022 1023 * A number of functions handling low-level keys or engines were deprecated 1024 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 1025 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 1026 EVP_PKEY_get0_siphash(). 1027 1028 *Matt Caswell* 1029 1030 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 1031 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 1032 will need to load the legacy crypto provider. This includes these PBE 1033 algorithms which use this KDF: 1034 - NID_pbeWithMD2AndDES_CBC 1035 - NID_pbeWithMD5AndDES_CBC 1036 - NID_pbeWithSHA1AndRC2_CBC 1037 - NID_pbeWithMD2AndRC2_CBC 1038 - NID_pbeWithMD5AndRC2_CBC 1039 - NID_pbeWithSHA1AndDES_CBC 1040 1041 *Jon Spillett* 1042 1043 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 1044 BIO_debug_callback() functions. 1045 1046 *Tomáš Mráz* 1047 1048 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 1049 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 1050 1051 *Tomáš Mráz* 1052 1053 * The RAND_METHOD APIs have been deprecated. 1054 1055 *Paul Dale* 1056 1057 * The SRP APIs have been deprecated. 1058 1059 *Matt Caswell* 1060 1061 * Add a compile time option to prevent the caching of provider fetched 1062 algorithms. This is enabled by including the no-cached-fetch option 1063 at configuration time. 1064 1065 *Paul Dale* 1066 1067 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 1068 count of PKCS12_DEFAULT_ITER. 1069 1070 *Tomáš Mráz and Sahana Prasad* 1071 1072 * The openssl speed command does not use low-level API calls anymore. 1073 1074 *Tomáš Mráz* 1075 1076 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 1077 capable processors. 1078 1079 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1080 1081 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 1082 1083 *Matt Caswell* 1084 1085 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 1086 providers may supply their own group implementations (using either the "key 1087 exchange" or the "key encapsulation" methods) which will automatically be 1088 detected and used by libssl. 1089 1090 *Matt Caswell, Nicola Tuveri* 1091 1092 * The undocumented function X509_certificate_type() has been deprecated; 1093 1094 *Rich Salz* 1095 1096 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 1097 1098 *Tomáš Mráz* 1099 1100 * Removed RSA padding mode for SSLv23 (which was only used for 1101 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 1102 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 1103 `rsautl` command. 1104 1105 *Rich Salz* 1106 1107 * Deprecated the obsolete X9.31 RSA key generation related functions. 1108 1109 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 1110 is not allowed to return a value > 1, this is no more taken as failure. 1111 1112 *Viktor Dukhovni and David von Oheimb* 1113 1114 * Deprecated the obsolete X9.31 RSA key generation related functions 1115 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 1116 BN_X931_generate_prime_ex(). 1117 1118 *Tomáš Mráz* 1119 1120 * The default key generation method for the regular 2-prime RSA keys was 1121 changed to the FIPS 186-4 B.3.6 method. 1122 1123 *Shane Lontis* 1124 1125 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 1126 1127 *Kurt Roeckx* 1128 1129 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1130 1131 *Rich Salz* 1132 1133 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1134 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1135 1136 *Rich Salz, Richard Levitte, and David von Oheimb* 1137 1138 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1139 1140 *David von Oheimb* 1141 1142 * Deprecated `OCSP_parse_url()`. 1143 1144 *David von Oheimb* 1145 1146 * Validation of SM2 keys has been separated from the validation of regular EC 1147 keys. 1148 1149 *Nicola Tuveri* 1150 1151 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1152 switches: a validation failure triggers an early exit, returning a failure 1153 exit status to the parent process. 1154 1155 *Nicola Tuveri* 1156 1157 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1158 to ignore unknown ciphers. 1159 1160 *Otto Hollmann* 1161 1162 * The `-cipher-commands` and `-digest-commands` options 1163 of the command line utility `list` have been deprecated. 1164 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1165 1166 *Dmitry Belyavskiy* 1167 1168 * Added convenience functions for generating asymmetric key pairs: 1169 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1170 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1171 1172 *David von Oheimb* 1173 1174 * All of the low level EC_KEY functions have been deprecated. 1175 1176 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1177 1178 * Deprecated all the libcrypto and libssl error string loading 1179 functions. 1180 1181 *Richard Levitte* 1182 1183 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1184 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1185 deprecated. 1186 1187 *Matt Caswell* 1188 1189 * The `-crypt` option to the `passwd` command line tool has been removed. 1190 1191 *Paul Dale* 1192 1193 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1194 were removed. 1195 1196 *Rich Salz* 1197 1198 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1199 1200 *Shane Lontis* 1201 1202 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1203 EVP_PKEY_get1_tls_encodedpoint(). 1204 1205 *Matt Caswell* 1206 1207 * The security callback, which can be customised by application code, supports 1208 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1209 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1210 1211 *Matt Caswell* 1212 1213 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1214 interface. Their functionality remains unchanged. 1215 1216 *Jordan Montgomery* 1217 1218 * Added new option for 'openssl list', '-providers', which will display the 1219 list of loaded providers, their names, version and status. It optionally 1220 displays their gettable parameters. 1221 1222 *Paul Dale* 1223 1224 * Removed EVP_PKEY_set_alias_type(). 1225 1226 *Richard Levitte* 1227 1228 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1229 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1230 1231 *Jeremy Walch* 1232 1233 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1234 parameters are still checked for type safety at compile time via helper 1235 inline functions. 1236 1237 *Matt Caswell* 1238 1239 * Remove the RAND_DRBG API 1240 1241 *Paul Dale and Matthias St. Pierre* 1242 1243 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1244 as well as actual hostnames. 1245 1246 *David Woodhouse* 1247 1248 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1249 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1250 conversely, silently ignore DTLS protocol version bounds when configuring 1251 TLS-based contexts. The commands can be repeated to set bounds of both 1252 types. The same applies with the corresponding "min_protocol" and 1253 "max_protocol" command-line switches, in case some application uses both TLS 1254 and DTLS. 1255 1256 SSL_CTX instances that are created for a fixed protocol version (e.g. 1257 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1258 attempts to apply bounds to these protocol versions would result in an 1259 error. Now only the "version-flexible" SSL_CTX instances are subject to 1260 limits in configuration files in command-line options. 1261 1262 *Viktor Dukhovni* 1263 1264 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1265 going forward. 1266 1267 *Paul Dale* 1268 1269 * Reworked the recorded ERR codes to make better space for system errors. 1270 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1271 given code is a system error (true) or an OpenSSL error (false). 1272 1273 *Richard Levitte* 1274 1275 * Reworked the test perl framework to better allow parallel testing. 1276 1277 *Nicola Tuveri and David von Oheimb* 1278 1279 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1280 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1281 1282 *Shane Lontis* 1283 1284 * 'Configure' has been changed to figure out the configuration target if 1285 none is given on the command line. Consequently, the 'config' script is 1286 now only a mere wrapper. All documentation is changed to only mention 1287 'Configure'. 1288 1289 *Rich Salz and Richard Levitte* 1290 1291 * Added a library context `OSSL_LIB_CTX` that applications as well as 1292 other libraries can use to form a separate context within which 1293 libcrypto operations are performed. 1294 1295 *Richard Levitte* 1296 1297 * Added various `_ex` functions to the OpenSSL API that support using 1298 a non-default `OSSL_LIB_CTX`. 1299 1300 *OpenSSL team* 1301 1302 * Handshake now fails if Extended Master Secret extension is dropped 1303 on renegotiation. 1304 1305 *Tomáš Mráz* 1306 1307 * Dropped interactive mode from the `openssl` program. 1308 1309 *Richard Levitte* 1310 1311 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1312 1313 *David von Oheimb and Shane Lontis* 1314 1315 * Deprecated `EC_METHOD_get_field_type()`. 1316 1317 *Billy Bob Brumley* 1318 1319 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1320 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1321 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1322 1323 *Billy Bob Brumley* 1324 1325 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1326 1327 *Billy Bob Brumley* 1328 1329 * Add CAdES-BES signature verification support, mostly derived 1330 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1331 1332 *Filipe Raimundo da Silva* 1333 1334 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1335 1336 *Antonio Iacono* 1337 1338 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1339 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1340 1341 *Jakub Zelenka* 1342 1343 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1344 1345 *Billy Bob Brumley* 1346 1347 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1348 EC_KEY_precompute_mult(). 1349 1350 *Billy Bob Brumley* 1351 1352 * Deprecated EC_POINTs_mul(). 1353 1354 *Billy Bob Brumley* 1355 1356 * Removed FIPS_mode() and FIPS_mode_set(). 1357 1358 *Shane Lontis* 1359 1360 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1361 1362 *Dmitry Belyavskiy* 1363 1364 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1365 EC_POINT_get_Jprojective_coordinates_GFp(). 1366 1367 *Billy Bob Brumley* 1368 1369 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1370 arrays to be more easily constructed via a series of utility functions. 1371 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1372 the various push functions and finally convert to a passable OSSL_PARAM 1373 array using OSSL_PARAM_BLD_to_param(). 1374 1375 *Paul Dale* 1376 1377 * The security strength of SHA1 and MD5 based signatures in TLS has been 1378 reduced. 1379 1380 *Kurt Roeckx* 1381 1382 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1383 contain a provider side internal key. 1384 1385 *Richard Levitte* 1386 1387 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1388 1389 *Richard Levitte* 1390 1391 * Project text documents not yet having a proper file name extension 1392 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1393 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1394 1395 *David von Oheimb* 1396 1397 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1398 have been converted to Markdown with the goal to produce documents 1399 which not only look pretty when viewed online in the browser, but 1400 remain well readable inside a plain text editor. 1401 1402 To achieve this goal, a 'minimalistic' Markdown style has been applied 1403 which avoids formatting elements that interfere too much with the 1404 reading flow in the text file. For example, it 1405 1406 * avoids [ATX headings][] and uses [setext headings][] instead 1407 (which works for `<h1>` and `<h2>` headings only). 1408 * avoids [inline links][] and uses [reference links][] instead. 1409 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1410 1411 [ATX headings]: https://github.github.com/gfm/#atx-headings 1412 [setext headings]: https://github.github.com/gfm/#setext-headings 1413 [inline links]: https://github.github.com/gfm/#inline-link 1414 [reference links]: https://github.github.com/gfm/#reference-link 1415 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1416 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1417 1418 *Matthias St. Pierre* 1419 1420 * The test suite is changed to preserve results of each test recipe. 1421 A new directory test-runs/ with subdirectories named like the 1422 test recipes are created in the build tree for this purpose. 1423 1424 *Richard Levitte* 1425 1426 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1427 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1428 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1429 1430 *David von Oheimb, Martin Peylo* 1431 1432 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1433 It supports arbitrary request and response content types, GET redirection, 1434 TLS, connections via HTTP(S) proxies, connections and exchange via 1435 user-defined BIOs (allowing implicit connections), persistent connections, 1436 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1437 The legacy OCSP-focused (and only partly documented) API 1438 is retained for backward compatibility, while most of it is deprecated. 1439 1440 *David von Oheimb* 1441 1442 * Added `util/check-format.pl`, a tool for checking adherence to the 1443 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1444 The checks performed are incomplete and yield some false positives. 1445 Still the tool should be useful for detecting most typical glitches. 1446 1447 *David von Oheimb* 1448 1449 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1450 If domain name resolution yields multiple IP addresses all of them are tried 1451 after `connect()` failures. 1452 1453 *David von Oheimb* 1454 1455 * All of the low level RSA functions have been deprecated. 1456 1457 *Paul Dale* 1458 1459 * X509 certificates signed using SHA1 are no longer allowed at security 1460 level 1 and above. 1461 1462 *Kurt Roeckx* 1463 1464 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1465 modified to use PKEY APIs. These commands are now in maintenance mode 1466 and no new features will be added to them. 1467 1468 *Paul Dale* 1469 1470 * The command line utility rsautl has been deprecated. 1471 1472 *Paul Dale* 1473 1474 * The command line utilities genrsa and rsa have been modified to use PKEY 1475 APIs. They now write PKCS#8 keys by default. These commands are now in 1476 maintenance mode and no new features will be added to them. 1477 1478 *Paul Dale* 1479 1480 * All of the low level DH functions have been deprecated. 1481 1482 *Paul Dale and Matt Caswell* 1483 1484 * All of the low level DSA functions have been deprecated. 1485 1486 *Paul Dale* 1487 1488 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1489 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1490 1491 *Richard Levitte* 1492 1493 * Deprecated low level ECDH and ECDSA functions. 1494 1495 *Paul Dale* 1496 1497 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1498 1499 *Richard Levitte* 1500 1501 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1502 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1503 a new formulation to include all the things it can be used for, 1504 as well as words of caution. 1505 1506 *Richard Levitte* 1507 1508 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1509 1510 *Paul Dale* 1511 1512 * All of the low level HMAC functions have been deprecated. 1513 1514 *Paul Dale and David von Oheimb* 1515 1516 * Over two thousand fixes were made to the documentation, including: 1517 - Common options (such as -rand/-writerand, TLS version control, etc) 1518 were refactored and point to newly-enhanced descriptions in openssl.pod. 1519 - Added style conformance for all options (with help from Richard Levitte), 1520 documented all reported missing options, added a CI build to check 1521 that all options are documented and that no unimplemented options 1522 are documented. 1523 - Documented some internals, such as all use of environment variables. 1524 - Addressed all internal broken L<> references. 1525 1526 *Rich Salz* 1527 1528 * All of the low level CMAC functions have been deprecated. 1529 1530 *Paul Dale* 1531 1532 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1533 functions have been deprecated. 1534 1535 *Paul Dale and David von Oheimb* 1536 1537 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1538 set of functions. The documentation mentioned negative values for some 1539 errors, but this was never the case, so the mention of negative values 1540 was removed. 1541 1542 Code that followed the documentation and thereby check with something 1543 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1544 1545 *Richard Levitte* 1546 1547 * All of the low level cipher functions have been deprecated. 1548 1549 *Matt Caswell and Paul Dale* 1550 1551 * Removed include/openssl/opensslconf.h.in and replaced it with 1552 include/openssl/configuration.h.in, which differs in not including 1553 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1554 was added to include both. 1555 1556 This allows internal hacks where one might need to modify the set 1557 of configured macros, for example this if deprecated symbols are 1558 still supposed to be available internally: 1559 1560 #include <openssl/configuration.h> 1561 1562 #undef OPENSSL_NO_DEPRECATED 1563 #define OPENSSL_SUPPRESS_DEPRECATED 1564 1565 #include <openssl/macros.h> 1566 1567 This should not be used by applications that use the exported 1568 symbols, as that will lead to linking errors. 1569 1570 *Richard Levitte* 1571 1572 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1573 used in exponentiation with 512-bit moduli. No EC algorithms are 1574 affected. Analysis suggests that attacks against 2-prime RSA1024, 1575 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1576 difficult to perform and are not believed likely. Attacks against DH512 1577 are considered just feasible. However, for an attack the target would 1578 have to re-use the DH512 private key, which is not recommended anyway. 1579 Also applications directly using the low-level API BN_mod_exp may be 1580 affected if they use BN_FLG_CONSTTIME. 1581 ([CVE-2019-1551]) 1582 1583 *Andy Polyakov* 1584 1585 * Most memory-debug features have been deprecated, and the functionality 1586 replaced with no-ops. 1587 1588 *Rich Salz* 1589 1590 * Added documentation for the STACK API. 1591 1592 *Rich Salz* 1593 1594 * Introduced a new method type and API, OSSL_ENCODER, to represent 1595 generic encoders. These do the same sort of job that PEM writers 1596 and d2i functions do, but with support for methods supplied by 1597 providers, and the possibility for providers to support other 1598 formats as well. 1599 1600 *Richard Levitte* 1601 1602 * Introduced a new method type and API, OSSL_DECODER, to represent 1603 generic decoders. These do the same sort of job that PEM readers 1604 and i2d functions do, but with support for methods supplied by 1605 providers, and the possibility for providers to support other 1606 formats as well. 1607 1608 *Richard Levitte* 1609 1610 * Added a .pragma directive to the syntax of configuration files, to 1611 allow varying behavior in a supported and predictable manner. 1612 Currently added pragma: 1613 1614 .pragma dollarid:on 1615 1616 This allows dollar signs to be a keyword character unless it's 1617 followed by a opening brace or parenthesis. This is useful for 1618 platforms where dollar signs are commonly used in names, such as 1619 volume names and system directory names on VMS. 1620 1621 *Richard Levitte* 1622 1623 * Added functionality to create an EVP_PKEY from user data. 1624 1625 *Richard Levitte* 1626 1627 * Change the interpretation of the '--api' configuration option to 1628 mean that this is a desired API compatibility level with no 1629 further meaning. The previous interpretation, that this would 1630 also mean to remove all deprecated symbols up to and including 1631 the given version, no requires that 'no-deprecated' is also used 1632 in the configuration. 1633 1634 When building applications, the desired API compatibility level 1635 can be set with the OPENSSL_API_COMPAT macro like before. For 1636 API compatibility version below 3.0, the old style numerical 1637 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1638 For version 3.0 and on, the value is expected to be the decimal 1639 value calculated from the major and minor version like this: 1640 1641 MAJOR * 10000 + MINOR * 100 1642 1643 Examples: 1644 1645 -DOPENSSL_API_COMPAT=30000 For 3.0 1646 -DOPENSSL_API_COMPAT=30200 For 3.2 1647 1648 To hide declarations that are deprecated up to and including the 1649 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1650 given when building the application as well. 1651 1652 *Richard Levitte* 1653 1654 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1655 access to certificate and CRL stores via URIs and OSSL_STORE 1656 loaders. 1657 1658 This adds the following functions: 1659 1660 - X509_LOOKUP_store() 1661 - X509_STORE_load_file() 1662 - X509_STORE_load_path() 1663 - X509_STORE_load_store() 1664 - SSL_add_store_cert_subjects_to_stack() 1665 - SSL_CTX_set_default_verify_store() 1666 - SSL_CTX_load_verify_file() 1667 - SSL_CTX_load_verify_dir() 1668 - SSL_CTX_load_verify_store() 1669 1670 *Richard Levitte* 1671 1672 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1673 The presence of this system service is determined at run-time. 1674 1675 *Richard Levitte* 1676 1677 * Added functionality to create an EVP_PKEY context based on data 1678 for methods from providers. This takes an algorithm name and a 1679 property query string and simply stores them, with the intent 1680 that any operation that uses this context will use those strings 1681 to fetch the needed methods implicitly, thereby making the port 1682 of application written for pre-3.0 OpenSSL easier. 1683 1684 *Richard Levitte* 1685 1686 * The undocumented function NCONF_WIN32() has been deprecated; for 1687 conversion details see the HISTORY section of doc/man5/config.pod 1688 1689 *Rich Salz* 1690 1691 * Introduced the new functions EVP_DigestSignInit_ex() and 1692 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1693 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1694 pages for further details. 1695 1696 *Matt Caswell* 1697 1698 * Over two thousand fixes were made to the documentation, including: 1699 adding missing command flags, better style conformance, documentation 1700 of internals, etc. 1701 1702 *Rich Salz, Richard Levitte* 1703 1704 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1705 X25519, X448, Ed25519 and Ed448. 1706 1707 *Patrick Steuer* 1708 1709 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1710 the first value. 1711 1712 *Jon Spillett* 1713 1714 * Deprecated the public definition of `ERR_STATE` as well as the function 1715 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1716 opaque type. 1717 1718 *Richard Levitte* 1719 1720 * Added ERR functionality to give callers access to the stored function 1721 names that have replaced the older function code based functions. 1722 1723 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1724 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1725 ERR_peek_error_all() and ERR_peek_last_error_all(). 1726 1727 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1728 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1729 ERR_func_error_string(). 1730 1731 *Richard Levitte* 1732 1733 * Extended testing to be verbose for failing tests only. The make variables 1734 VERBOSE_FAILURE or VF can be used to enable this: 1735 1736 $ make VF=1 test # Unix 1737 $ mms /macro=(VF=1) test ! OpenVMS 1738 $ nmake VF=1 test # Windows 1739 1740 *Richard Levitte* 1741 1742 * Added the `-copy_extensions` option to the `x509` command for use with 1743 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1744 all extensions in the request are copied to the certificate or vice versa. 1745 1746 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1747 1748 * Added the `-copy_extensions` option to the `req` command for use with 1749 `-x509`. When given with the `copy` or `copyall` argument, 1750 all extensions in the certification request are copied to the certificate. 1751 1752 *David von Oheimb* 1753 1754 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 1755 they generate are by default RFC 5280 compliant in the following sense: 1756 There is a subjectKeyIdentifier extension with a hash value of the public key 1757 and for not self-signed certs there is an authorityKeyIdentifier extension 1758 with a keyIdentifier field or issuer information identifying the signing key. 1759 This is done unless some configuration overrides the new default behavior, 1760 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 1761 1762 *David von Oheimb* 1763 1764 * Added several checks to `X509_verify_cert()` according to requirements in 1765 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 1766 (which may be done by using the CLI option `-x509_strict`): 1767 * The basicConstraints of CA certificates must be marked critical. 1768 * CA certificates must explicitly include the keyUsage extension. 1769 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 1770 * The issuer name of any certificate must not be empty. 1771 * The subject name of CA certs, certs with keyUsage crlSign, 1772 and certs without subjectAlternativeName must not be empty. 1773 * If a subjectAlternativeName extension is given it must not be empty. 1774 * The signatureAlgorithm field and the cert signature must be consistent. 1775 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 1776 must not be marked critical. 1777 * The authorityKeyIdentifier must be given for X.509v3 certs 1778 unless they are self-signed. 1779 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 1780 1781 *David von Oheimb* 1782 1783 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 1784 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 1785 1786 *Tomáš Mráz* 1787 1788 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 1789 used even when parsing explicit parameters, when loading a encoded key 1790 or calling `EC_GROUP_new_from_ecpkparameters()`/ 1791 `EC_GROUP_new_from_ecparameters()`. 1792 This prevents bypass of security hardening and performance gains, 1793 especially for curves with specialized EC_METHODs. 1794 By default, if a key encoded with explicit parameters is loaded and later 1795 encoded, the output is still encoded with explicit parameters, even if 1796 internally a "named" EC_GROUP is used for computation. 1797 1798 *Nicola Tuveri* 1799 1800 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 1801 this change, EC_GROUP_set_generator would accept order and/or cofactor as 1802 NULL. After this change, only the cofactor parameter can be NULL. It also 1803 does some minimal sanity checks on the passed order. 1804 ([CVE-2019-1547]) 1805 1806 *Billy Bob Brumley* 1807 1808 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 1809 An attack is simple, if the first CMS_recipientInfo is valid but the 1810 second CMS_recipientInfo is chosen ciphertext. If the second 1811 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 1812 encryption key will be replaced by garbage, and the message cannot be 1813 decoded, but if the RSA decryption fails, the correct encryption key is 1814 used and the recipient will not notice the attack. 1815 As a work around for this potential attack the length of the decrypted 1816 key must be equal to the cipher default key length, in case the 1817 certifiate is not given and all recipientInfo are tried out. 1818 The old behaviour can be re-enabled in the CMS code by setting the 1819 CMS_DEBUG_DECRYPT flag. 1820 1821 *Bernd Edlinger* 1822 1823 * Early start up entropy quality from the DEVRANDOM seed source has been 1824 improved for older Linux systems. The RAND subsystem will wait for 1825 /dev/random to be producing output before seeding from /dev/urandom. 1826 The seeded state is stored for future library initialisations using 1827 a system global shared memory segment. The shared memory identifier 1828 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 1829 the desired value. The default identifier is 114. 1830 1831 *Paul Dale* 1832 1833 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 1834 when primes for RSA keys are computed. 1835 Since we previously always generated primes == 2 (mod 3) for RSA keys, 1836 the 2-prime and 3-prime RSA modules were easy to distinguish, since 1837 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 1838 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 1839 This avoids possible fingerprinting of newly generated RSA modules. 1840 1841 *Bernd Edlinger* 1842 1843 * Correct the extended master secret constant on EBCDIC systems. Without this 1844 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 1845 negotiate EMS will fail. Unfortunately this also means that TLS connections 1846 between EBCDIC systems with this fix, and EBCDIC systems without this 1847 fix will fail if they negotiate EMS. 1848 1849 *Matt Caswell* 1850 1851 * Changed the library initialisation so that the config file is now loaded 1852 by default. This was already the case for libssl. It now occurs for both 1853 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 1854 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 1855 1856 *Matt Caswell* 1857 1858 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 1859 where the former acts as a replacement for `ERR_put_error()`, and the 1860 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 1861 `ERR_raise_data()` adds more flexibility by taking a format string and 1862 an arbitrary number of arguments following it, to be processed with 1863 `BIO_snprintf()`. 1864 1865 *Richard Levitte* 1866 1867 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 1868 to check if a named provider is loaded and available. When called, it 1869 will also activate all fallback providers if such are still present. 1870 1871 *Richard Levitte* 1872 1873 * Enforce a minimum DH modulus size of 512 bits. 1874 1875 *Bernd Edlinger* 1876 1877 * Changed DH parameters to generate the order q subgroup instead of 2q. 1878 Previously generated DH parameters are still accepted by DH_check 1879 but DH_generate_key works around that by clearing bit 0 of the 1880 private key for those. This avoids leaking bit 0 of the private key. 1881 1882 *Bernd Edlinger* 1883 1884 * Significantly reduce secure memory usage by the randomness pools. 1885 1886 *Paul Dale* 1887 1888 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 1889 deprecated. 1890 1891 *Rich Salz* 1892 1893 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 1894 algorithms. An implementation of a key exchange algorithm can be obtained 1895 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 1896 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 1897 the older EVP_PKEY_derive_init() function. See the man pages for the new 1898 functions for further details. 1899 1900 *Matt Caswell* 1901 1902 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 1903 1904 *Matt Caswell* 1905 1906 * Removed the function names from error messages and deprecated the 1907 xxx_F_xxx define's. 1908 1909 *Richard Levitte* 1910 1911 * Removed NextStep support and the macro OPENSSL_UNISTD 1912 1913 *Rich Salz* 1914 1915 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 1916 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 1917 Also removed "export var as function" capability; we do not export 1918 variables, only functions. 1919 1920 *Rich Salz* 1921 1922 * RC5_32_set_key has been changed to return an int type, with 0 indicating 1923 an error and 1 indicating success. In previous versions of OpenSSL this 1924 was a void type. If a key was set longer than the maximum possible this 1925 would crash. 1926 1927 *Matt Caswell* 1928 1929 * Support SM2 signing and verification schemes with X509 certificate. 1930 1931 *Paul Yang* 1932 1933 * Use SHA256 as the default digest for TS query in the `ts` app. 1934 1935 *Tomáš Mráz* 1936 1937 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 1938 1939 *Shane Lontis* 1940 1941 * Default cipher lists/suites are now available via a function, the 1942 #defines are deprecated. 1943 1944 *Todd Short* 1945 1946 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 1947 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 1948 for Windows Store apps easier. Also, the "no-uplink" option has been added. 1949 1950 *Kenji Mouri* 1951 1952 * Join the directories crypto/x509 and crypto/x509v3 1953 1954 *Richard Levitte* 1955 1956 * Added command 'openssl kdf' that uses the EVP_KDF API. 1957 1958 *Shane Lontis* 1959 1960 * Added command 'openssl mac' that uses the EVP_MAC API. 1961 1962 *Shane Lontis* 1963 1964 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 1965 as default directories. Also added the command 'openssl info' 1966 for scripting purposes. 1967 1968 *Richard Levitte* 1969 1970 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 1971 deprecated. 1972 1973 *Matt Caswell* 1974 1975 * Add prediction resistance to the DRBG reseeding process. 1976 1977 *Paul Dale* 1978 1979 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 1980 mandated by IEEE Std 1619-2018. 1981 1982 *Paul Dale* 1983 1984 * Added newline escaping functionality to a filename when using openssl dgst. 1985 This output format is to replicate the output format found in the `*sum` 1986 checksum programs. This aims to preserve backward compatibility. 1987 1988 *Matt Eaton, Richard Levitte, and Paul Dale* 1989 1990 * Removed the heartbeat message in DTLS feature, as it has very 1991 little usage and doesn't seem to fulfill a valuable purpose. 1992 The configuration option is now deprecated. 1993 1994 *Richard Levitte* 1995 1996 * Changed the output of 'openssl {digestname} < file' to display the 1997 digest name in its output. 1998 1999 *Richard Levitte* 2000 2001 * Added a new generic trace API which provides support for enabling 2002 instrumentation through trace output. 2003 2004 *Richard Levitte & Matthias St. Pierre* 2005 2006 * Added build tests for C++. These are generated files that only do one 2007 thing, to include one public OpenSSL head file each. This tests that 2008 the public header files can be usefully included in a C++ application. 2009 2010 This test isn't enabled by default. It can be enabled with the option 2011 'enable-buildtest-c++'. 2012 2013 *Richard Levitte* 2014 2015 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 2016 2017 *Robbie Harwood* 2018 2019 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 2020 2021 *Simo Sorce* 2022 2023 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 2024 2025 *Shane Lontis* 2026 2027 * Added KMAC to EVP_MAC. 2028 2029 *Shane Lontis* 2030 2031 * Added property based algorithm implementation selection framework to 2032 the core. 2033 2034 *Paul Dale* 2035 2036 * Added SCA hardening for modular field inversion in EC_GROUP through 2037 a new dedicated field_inv() pointer in EC_METHOD. 2038 This also addresses a leakage affecting conversions from projective 2039 to affine coordinates. 2040 2041 *Billy Bob Brumley, Nicola Tuveri* 2042 2043 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 2044 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 2045 those algorithms that were already supported through the EVP_PKEY API 2046 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 2047 and scrypt are now wrappers that call EVP_KDF. 2048 2049 *David Makepeace* 2050 2051 * Build devcrypto engine as a dynamic engine. 2052 2053 *Eneas U de Queiroz* 2054 2055 * Add keyed BLAKE2 to EVP_MAC. 2056 2057 *Antoine Salon* 2058 2059 * Fix a bug in the computation of the endpoint-pair shared secret used 2060 by DTLS over SCTP. This breaks interoperability with older versions 2061 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 2062 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 2063 interoperability with such broken implementations. However, enabling 2064 this switch breaks interoperability with correct implementations. 2065 2066 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 2067 re-used X509_PUBKEY object if the second PUBKEY is malformed. 2068 2069 *Bernd Edlinger* 2070 2071 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 2072 2073 *Richard Levitte* 2074 2075 * Changed the license to the Apache License v2.0. 2076 2077 *Richard Levitte* 2078 2079 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 2080 2081 - Major releases (indicated by incrementing the MAJOR release number) 2082 may introduce incompatible API/ABI changes. 2083 - Minor releases (indicated by incrementing the MINOR release number) 2084 may introduce new features but retain API/ABI compatibility. 2085 - Patch releases (indicated by incrementing the PATCH number) 2086 are intended for bug fixes and other improvements of existing 2087 features only (like improving performance or adding documentation) 2088 and retain API/ABI compatibility. 2089 2090 *Richard Levitte* 2091 2092 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 2093 2094 *Todd Short* 2095 2096 * Remove the 'dist' target and add a tarball building script. The 2097 'dist' target has fallen out of use, and it shouldn't be 2098 necessary to configure just to create a source distribution. 2099 2100 *Richard Levitte* 2101 2102 * Recreate the OS390-Unix config target. It no longer relies on a 2103 special script like it did for OpenSSL pre-1.1.0. 2104 2105 *Richard Levitte* 2106 2107 * Instead of having the source directories listed in Configure, add 2108 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 2109 look into. 2110 2111 *Richard Levitte* 2112 2113 * Add GMAC to EVP_MAC. 2114 2115 *Paul Dale* 2116 2117 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 2118 2119 *Richard Levitte* 2120 2121 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 2122 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 2123 to facilitate the continued use of MACs through raw private keys in 2124 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 2125 2126 *Richard Levitte* 2127 2128 * Deprecate ECDH_KDF_X9_62(). 2129 2130 *Antoine Salon* 2131 2132 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2133 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2134 are retained for backwards compatibility. 2135 2136 *Antoine Salon* 2137 2138 * AES-XTS mode now enforces that its two keys are different to mitigate 2139 the attacked described in "Efficient Instantiations of Tweakable 2140 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2141 Details of this attack can be obtained from: 2142 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2143 2144 *Paul Dale* 2145 2146 * Rename the object files, i.e. give them other names than in previous 2147 versions. Their names now include the name of the final product, as 2148 well as its type mnemonic (bin, lib, shlib). 2149 2150 *Richard Levitte* 2151 2152 * Added new option for 'openssl list', '-objects', which will display the 2153 list of built in objects, i.e. OIDs with names. 2154 2155 *Richard Levitte* 2156 2157 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2158 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2159 be set explicitly. 2160 2161 *Chris Novakovic* 2162 2163 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2164 improves application performance by removing data copies and providing 2165 applications with zero-copy system calls such as sendfile and splice. 2166 2167 *Boris Pismenny* 2168 2169 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2170 2171 *Martin Elshuber* 2172 2173 * `PKCS12_parse` now maintains the order of the parsed certificates 2174 when outputting them via `*ca` (rather than reversing it). 2175 2176 *David von Oheimb* 2177 2178 * Deprecated pthread fork support methods. 2179 2180 *Randall S. Becker* 2181 2182 * Added support for FFDHE key exchange in TLS 1.3. 2183 2184 *Raja Ashok* 2185 2186 * Added a new concept for OpenSSL plugability: providers. This 2187 functionality is designed to replace the ENGINE API and ENGINE 2188 implementations, and to be much more dynamic, allowing provider 2189 authors to introduce new algorithms among other things, as long as 2190 there's an API that supports the algorithm type. 2191 2192 With this concept comes a new core API for interaction between 2193 libcrypto and provider implementations. Public libcrypto functions 2194 that want to use providers do so through this core API. 2195 2196 The main documentation for this core API is found in 2197 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2198 refer to other manuals describing the API specific for supported 2199 algorithm types (also called operations). 2200 2201 *The OpenSSL team* 2202 2203OpenSSL 1.1.1 2204------------- 2205 2206### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2207 2208 * Avoid loading of a dynamic engine twice. 2209 2210 *Bernd Edlinger* 2211 2212 * Prioritise DANE TLSA issuer certs over peer certs 2213 2214 *Viktor Dukhovni* 2215 2216 * Fixed random API for MacOS prior to 10.12 2217 2218 These MacOS versions don't support the CommonCrypto APIs 2219 2220 *Lenny Primak* 2221 2222### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2223 2224 * Fixed an SM2 Decryption Buffer Overflow. 2225 2226 In order to decrypt SM2 encrypted data an application is expected to 2227 call the API function EVP_PKEY_decrypt(). Typically an application will 2228 call this function twice. The first time, on entry, the "out" parameter 2229 can be NULL and, on exit, the "outlen" parameter is populated with the 2230 buffer size required to hold the decrypted plaintext. The application 2231 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2232 again, but this time passing a non-NULL value for the "out" parameter. 2233 2234 A bug in the implementation of the SM2 decryption code means that the 2235 calculation of the buffer size required to hold the plaintext returned 2236 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2237 size required by the second call. This can lead to a buffer overflow 2238 when EVP_PKEY_decrypt() is called by the application a second time with 2239 a buffer that is too small. 2240 2241 A malicious attacker who is able present SM2 content for decryption to 2242 an application could cause attacker chosen data to overflow the buffer 2243 by up to a maximum of 62 bytes altering the contents of other data held 2244 after the buffer, possibly changing application behaviour or causing 2245 the application to crash. The location of the buffer is application 2246 dependent but is typically heap allocated. 2247 ([CVE-2021-3711]) 2248 2249 *Matt Caswell* 2250 2251 * Fixed various read buffer overruns processing ASN.1 strings 2252 2253 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2254 structure which contains a buffer holding the string data and a field 2255 holding the buffer length. This contrasts with normal C strings which 2256 are repesented as a buffer for the string data which is terminated 2257 with a NUL (0) byte. 2258 2259 Although not a strict requirement, ASN.1 strings that are parsed using 2260 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2261 well as any string whose value has been set with the ASN1_STRING_set() 2262 function will additionally NUL terminate the byte array in the 2263 ASN1_STRING structure. 2264 2265 However, it is possible for applications to directly construct valid 2266 ASN1_STRING structures which do not NUL terminate the byte array by 2267 directly setting the "data" and "length" fields in the ASN1_STRING 2268 array. This can also happen by using the ASN1_STRING_set0() function. 2269 2270 Numerous OpenSSL functions that print ASN.1 data have been found to 2271 assume that the ASN1_STRING byte array will be NUL terminated, even 2272 though this is not guaranteed for strings that have been directly 2273 constructed. Where an application requests an ASN.1 structure to be 2274 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2275 been directly constructed by the application without NUL terminating 2276 the "data" field, then a read buffer overrun can occur. 2277 2278 The same thing can also occur during name constraints processing 2279 of certificates (for example if a certificate has been directly 2280 constructed by the application instead of loading it via the OpenSSL 2281 parsing functions, and the certificate contains non NUL terminated 2282 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2283 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2284 2285 If a malicious actor can cause an application to directly construct an 2286 ASN1_STRING and then process it through one of the affected OpenSSL 2287 functions then this issue could be hit. This might result in a crash 2288 (causing a Denial of Service attack). It could also result in the 2289 disclosure of private memory contents (such as private keys, or 2290 sensitive plaintext). 2291 ([CVE-2021-3712]) 2292 2293 *Matt Caswell* 2294 2295### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2296 2297 * Fixed a problem with verifying a certificate chain when using the 2298 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2299 the certificates present in a certificate chain. It is not set by default. 2300 2301 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2302 the chain that have explicitly encoded elliptic curve parameters was added 2303 as an additional strict check. 2304 2305 An error in the implementation of this check meant that the result of a 2306 previous check to confirm that certificates in the chain are valid CA 2307 certificates was overwritten. This effectively bypasses the check 2308 that non-CA certificates must not be able to issue other certificates. 2309 2310 If a "purpose" has been configured then there is a subsequent opportunity 2311 for checks that the certificate is a valid CA. All of the named "purpose" 2312 values implemented in libcrypto perform this check. Therefore, where 2313 a purpose is set the certificate chain will still be rejected even when the 2314 strict flag has been used. A purpose is set by default in libssl client and 2315 server certificate verification routines, but it can be overridden or 2316 removed by an application. 2317 2318 In order to be affected, an application must explicitly set the 2319 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2320 for the certificate verification or, in the case of TLS client or server 2321 applications, override the default purpose. 2322 ([CVE-2021-3450]) 2323 2324 *Tomáš Mráz* 2325 2326 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2327 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2328 renegotiation ClientHello omits the signature_algorithms extension (where it 2329 was present in the initial ClientHello), but includes a 2330 signature_algorithms_cert extension then a NULL pointer dereference will 2331 result, leading to a crash and a denial of service attack. 2332 2333 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2334 (which is the default configuration). OpenSSL TLS clients are not impacted by 2335 this issue. 2336 ([CVE-2021-3449]) 2337 2338 *Peter Kästle and Samuel Sapalski* 2339 2340### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2341 2342 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2343 create a unique hash value based on the issuer and serial number data 2344 contained within an X509 certificate. However it was failing to correctly 2345 handle any errors that may occur while parsing the issuer field (which might 2346 occur if the issuer field is maliciously constructed). This may subsequently 2347 result in a NULL pointer deref and a crash leading to a potential denial of 2348 service attack. 2349 ([CVE-2021-23841]) 2350 2351 *Matt Caswell* 2352 2353 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2354 padding mode to correctly check for rollback attacks. This is considered a 2355 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2356 CVE-2021-23839. 2357 2358 *Matt Caswell* 2359 2360 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2361 functions. Previously they could overflow the output length argument in some 2362 cases where the input length is close to the maximum permissable length for 2363 an integer on the platform. In such cases the return value from the function 2364 call would be 1 (indicating success), but the output length value would be 2365 negative. This could cause applications to behave incorrectly or crash. 2366 ([CVE-2021-23840]) 2367 2368 *Matt Caswell* 2369 2370 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2371 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2372 could be exploited in a side channel attack to recover the password. Since 2373 the attack is local host only this is outside of the current OpenSSL 2374 threat model and therefore no CVE is assigned. 2375 2376 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2377 issue. 2378 2379 *Matt Caswell* 2380 2381### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2382 2383 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2384 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2385 If an attacker can control both items being compared then this could lead 2386 to a possible denial of service attack. OpenSSL itself uses the 2387 GENERAL_NAME_cmp function for two purposes: 2388 1) Comparing CRL distribution point names between an available CRL and a 2389 CRL distribution point embedded in an X509 certificate 2390 2) When verifying that a timestamp response token signer matches the 2391 timestamp authority name (exposed via the API functions 2392 TS_RESP_verify_response and TS_RESP_verify_token) 2393 ([CVE-2020-1971]) 2394 2395 *Matt Caswell* 2396 2397### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2398 2399 * Certificates with explicit curve parameters are now disallowed in 2400 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2401 2402 *Tomáš Mráz* 2403 2404 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2405 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2406 conversely, silently ignore DTLS protocol version bounds when configuring 2407 TLS-based contexts. The commands can be repeated to set bounds of both 2408 types. The same applies with the corresponding "min_protocol" and 2409 "max_protocol" command-line switches, in case some application uses both TLS 2410 and DTLS. 2411 2412 SSL_CTX instances that are created for a fixed protocol version (e.g. 2413 TLSv1_server_method()) also silently ignore version bounds. Previously 2414 attempts to apply bounds to these protocol versions would result in an 2415 error. Now only the "version-flexible" SSL_CTX instances are subject to 2416 limits in configuration files in command-line options. 2417 2418 *Viktor Dukhovni* 2419 2420 * Handshake now fails if Extended Master Secret extension is dropped 2421 on renegotiation. 2422 2423 *Tomáš Mráz* 2424 2425 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2426 2427### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2428 2429 * Fixed segmentation fault in SSL_check_chain() 2430 Server or client applications that call the SSL_check_chain() function 2431 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2432 dereference as a result of incorrect handling of the 2433 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2434 or unrecognised signature algorithm is received from the peer. This could 2435 be exploited by a malicious peer in a Denial of Service attack. 2436 ([CVE-2020-1967]) 2437 2438 *Benjamin Kaduk* 2439 2440 * Added AES consttime code for no-asm configurations 2441 an optional constant time support for AES was added 2442 when building openssl for no-asm. 2443 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2444 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2445 At this time this feature is by default disabled. 2446 It will be enabled by default in 3.0. 2447 2448 *Bernd Edlinger* 2449 2450### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2451 2452 * Revert the change of EOF detection while reading in libssl to avoid 2453 regressions in applications depending on the current way of reporting 2454 the EOF. As the existing method is not fully accurate the change to 2455 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2456 branch and will be present in the 3.0 release. 2457 2458 *Tomáš Mráz* 2459 2460 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2461 when primes for RSA keys are computed. 2462 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2463 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2464 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2465 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2466 This avoids possible fingerprinting of newly generated RSA modules. 2467 2468 *Bernd Edlinger* 2469 2470### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2471 2472 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2473 while reading in libssl then we would report an error back to the 2474 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2475 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2476 therefore give a hint as to what went wrong. 2477 2478 *Matt Caswell* 2479 2480 * Check that ed25519 and ed448 are allowed by the security level. Previously 2481 signature algorithms not using an MD were not being checked that they were 2482 allowed by the security level. 2483 2484 *Kurt Roeckx* 2485 2486 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2487 was not quite right. The behaviour was not consistent between resumption 2488 and normal handshakes, and also not quite consistent with historical 2489 behaviour. The behaviour in various scenarios has been clarified and 2490 it has been updated to make it match historical behaviour as closely as 2491 possible. 2492 2493 *Matt Caswell* 2494 2495 * *[VMS only]* The header files that the VMS compilers include automatically, 2496 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2497 that the C++ compiler doesn't understand. This is a shortcoming in the 2498 compiler, but can be worked around with `__cplusplus` guards. 2499 2500 C++ applications that use OpenSSL libraries must be compiled using the 2501 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2502 functions. Otherwise, only functions with symbols of less than 31 2503 characters can be used, as the linker will not be able to successfully 2504 resolve symbols with longer names. 2505 2506 *Richard Levitte* 2507 2508 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2509 The presence of this system service is determined at run-time. 2510 2511 *Richard Levitte* 2512 2513 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2514 the first value. 2515 2516 *Jon Spillett* 2517 2518### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2519 2520 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2521 number generator (RNG). This was intended to include protection in the 2522 event of a fork() system call in order to ensure that the parent and child 2523 processes did not share the same RNG state. However this protection was not 2524 being used in the default case. 2525 2526 A partial mitigation for this issue is that the output from a high 2527 precision timer is mixed into the RNG state so the likelihood of a parent 2528 and child process sharing state is significantly reduced. 2529 2530 If an application already calls OPENSSL_init_crypto() explicitly using 2531 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2532 ([CVE-2019-1549]) 2533 2534 *Matthias St. Pierre* 2535 2536 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2537 used even when parsing explicit parameters, when loading a encoded key 2538 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2539 `EC_GROUP_new_from_ecparameters()`. 2540 This prevents bypass of security hardening and performance gains, 2541 especially for curves with specialized EC_METHODs. 2542 By default, if a key encoded with explicit parameters is loaded and later 2543 encoded, the output is still encoded with explicit parameters, even if 2544 internally a "named" EC_GROUP is used for computation. 2545 2546 *Nicola Tuveri* 2547 2548 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2549 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2550 NULL. After this change, only the cofactor parameter can be NULL. It also 2551 does some minimal sanity checks on the passed order. 2552 ([CVE-2019-1547]) 2553 2554 *Billy Bob Brumley* 2555 2556 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2557 An attack is simple, if the first CMS_recipientInfo is valid but the 2558 second CMS_recipientInfo is chosen ciphertext. If the second 2559 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2560 encryption key will be replaced by garbage, and the message cannot be 2561 decoded, but if the RSA decryption fails, the correct encryption key is 2562 used and the recipient will not notice the attack. 2563 As a work around for this potential attack the length of the decrypted 2564 key must be equal to the cipher default key length, in case the 2565 certifiate is not given and all recipientInfo are tried out. 2566 The old behaviour can be re-enabled in the CMS code by setting the 2567 CMS_DEBUG_DECRYPT flag. 2568 ([CVE-2019-1563]) 2569 2570 *Bernd Edlinger* 2571 2572 * Early start up entropy quality from the DEVRANDOM seed source has been 2573 improved for older Linux systems. The RAND subsystem will wait for 2574 /dev/random to be producing output before seeding from /dev/urandom. 2575 The seeded state is stored for future library initialisations using 2576 a system global shared memory segment. The shared memory identifier 2577 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2578 the desired value. The default identifier is 114. 2579 2580 *Paul Dale* 2581 2582 * Correct the extended master secret constant on EBCDIC systems. Without this 2583 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2584 negotiate EMS will fail. Unfortunately this also means that TLS connections 2585 between EBCDIC systems with this fix, and EBCDIC systems without this 2586 fix will fail if they negotiate EMS. 2587 2588 *Matt Caswell* 2589 2590 * Use Windows installation paths in the mingw builds 2591 2592 Mingw isn't a POSIX environment per se, which means that Windows 2593 paths should be used for installation. 2594 ([CVE-2019-1552]) 2595 2596 *Richard Levitte* 2597 2598 * Changed DH_check to accept parameters with order q and 2q subgroups. 2599 With order 2q subgroups the bit 0 of the private key is not secret 2600 but DH_generate_key works around that by clearing bit 0 of the 2601 private key for those. This avoids leaking bit 0 of the private key. 2602 2603 *Bernd Edlinger* 2604 2605 * Significantly reduce secure memory usage by the randomness pools. 2606 2607 *Paul Dale* 2608 2609 * Revert the DEVRANDOM_WAIT feature for Linux systems 2610 2611 The DEVRANDOM_WAIT feature added a select() call to wait for the 2612 /dev/random device to become readable before reading from the 2613 /dev/urandom device. 2614 2615 It turned out that this change had negative side effects on 2616 performance which were not acceptable. After some discussion it 2617 was decided to revert this feature and leave it up to the OS 2618 resp. the platform maintainer to ensure a proper initialization 2619 during early boot time. 2620 2621 *Matthias St. Pierre* 2622 2623### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2624 2625 * Add build tests for C++. These are generated files that only do one 2626 thing, to include one public OpenSSL head file each. This tests that 2627 the public header files can be usefully included in a C++ application. 2628 2629 This test isn't enabled by default. It can be enabled with the option 2630 'enable-buildtest-c++'. 2631 2632 *Richard Levitte* 2633 2634 * Enable SHA3 pre-hashing for ECDSA and DSA. 2635 2636 *Patrick Steuer* 2637 2638 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2639 This changes the size when using the `genpkey` command when no size is given. 2640 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2641 generation commands to use 2048 bits by default. 2642 2643 *Kurt Roeckx* 2644 2645 * Reorganize the manual pages to consistently have RETURN VALUES, 2646 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2647 util/fix-doc-nits accordingly. 2648 2649 *Paul Yang, Joshua Lock* 2650 2651 * Add the missing accessor EVP_PKEY_get0_engine() 2652 2653 *Matt Caswell* 2654 2655 * Have commands like `s_client` and `s_server` output the signature scheme 2656 along with other cipher suite parameters when debugging. 2657 2658 *Lorinczy Zsigmond* 2659 2660 * Make OPENSSL_config() error agnostic again. 2661 2662 *Richard Levitte* 2663 2664 * Do the error handling in RSA decryption constant time. 2665 2666 *Bernd Edlinger* 2667 2668 * Prevent over long nonces in ChaCha20-Poly1305. 2669 2670 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2671 for every encryption operation. RFC 7539 specifies that the nonce value 2672 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2673 and front pads the nonce with 0 bytes if it is less than 12 2674 bytes. However it also incorrectly allows a nonce to be set of up to 16 2675 bytes. In this case only the last 12 bytes are significant and any 2676 additional leading bytes are ignored. 2677 2678 It is a requirement of using this cipher that nonce values are 2679 unique. Messages encrypted using a reused nonce value are susceptible to 2680 serious confidentiality and integrity attacks. If an application changes 2681 the default nonce length to be longer than 12 bytes and then makes a 2682 change to the leading bytes of the nonce expecting the new value to be a 2683 new unique nonce then such an application could inadvertently encrypt 2684 messages with a reused nonce. 2685 2686 Additionally the ignored bytes in a long nonce are not covered by the 2687 integrity guarantee of this cipher. Any application that relies on the 2688 integrity of these ignored leading bytes of a long nonce may be further 2689 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2690 is safe because no such use sets such a long nonce value. However user 2691 applications that use this cipher directly and set a non-default nonce 2692 length to be longer than 12 bytes may be vulnerable. 2693 2694 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2695 Greef of Ronomon. 2696 ([CVE-2019-1543]) 2697 2698 *Matt Caswell* 2699 2700 * Add DEVRANDOM_WAIT feature for Linux systems 2701 2702 On older Linux systems where the getrandom() system call is not available, 2703 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2704 Contrary to getrandom(), the /dev/urandom device will not block during 2705 early boot when the kernel CSPRNG has not been seeded yet. 2706 2707 To mitigate this known weakness, use select() to wait for /dev/random to 2708 become readable before reading from /dev/urandom. 2709 2710 * Ensure that SM2 only uses SM3 as digest algorithm 2711 2712 *Paul Yang* 2713 2714### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2715 2716 * Change the info callback signals for the start and end of a post-handshake 2717 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2718 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2719 confused by this and assume that a TLSv1.2 renegotiation has started. This 2720 can break KeyUpdate handling. Instead we no longer signal the start and end 2721 of a post handshake message exchange (although the messages themselves are 2722 still signalled). This could break some applications that were expecting 2723 the old signals. However without this KeyUpdate is not usable for many 2724 applications. 2725 2726 *Matt Caswell* 2727 2728### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2729 2730 * Timing vulnerability in DSA signature generation 2731 2732 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2733 timing side channel attack. An attacker could use variations in the signing 2734 algorithm to recover the private key. 2735 2736 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2737 ([CVE-2018-0734]) 2738 2739 *Paul Dale* 2740 2741 * Timing vulnerability in ECDSA signature generation 2742 2743 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2744 timing side channel attack. An attacker could use variations in the signing 2745 algorithm to recover the private key. 2746 2747 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2748 ([CVE-2018-0735]) 2749 2750 *Paul Dale* 2751 2752 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2753 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2754 of two gigabytes and the error handling improved. 2755 2756 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 2757 categorized as a normal bug, not a security issue, because the DRBG reseeds 2758 automatically and is fully functional even without additional randomness 2759 provided by the application. 2760 2761### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 2762 2763 * Add a new ClientHello callback. Provides a callback interface that gives 2764 the application the ability to adjust the nascent SSL object at the 2765 earliest stage of ClientHello processing, immediately after extensions have 2766 been collected but before they have been processed. In particular, this 2767 callback can adjust the supported TLS versions in response to the contents 2768 of the ClientHello 2769 2770 *Benjamin Kaduk* 2771 2772 * Add SM2 base algorithm support. 2773 2774 *Jack Lloyd* 2775 2776 * s390x assembly pack: add (improved) hardware-support for the following 2777 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 2778 aes-cfb/cfb8, aes-ecb. 2779 2780 *Patrick Steuer* 2781 2782 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 2783 parameter is no longer accepted, as it leads to a corrupt table. NULL 2784 pem_str is reserved for alias entries only. 2785 2786 *Richard Levitte* 2787 2788 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2789 step for prime curves. The new implementation is based on formulae from 2790 differential addition-and-doubling in homogeneous projective coordinates 2791 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 2792 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 2793 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 2794 to work in projective coordinates. 2795 2796 *Billy Bob Brumley, Nicola Tuveri* 2797 2798 * Change generating and checking of primes so that the error rate of not 2799 being prime depends on the intended use based on the size of the input. 2800 For larger primes this will result in more rounds of Miller-Rabin. 2801 The maximal error rate for primes with more than 1080 bits is lowered 2802 to 2^-128. 2803 2804 *Kurt Roeckx, Annie Yousar* 2805 2806 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 2807 2808 *Kurt Roeckx* 2809 2810 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 2811 moving between systems, and to avoid confusion when a Windows build is 2812 done with mingw vs with MSVC. For POSIX installs, there's still a 2813 symlink or copy named 'tsget' to avoid that confusion as well. 2814 2815 *Richard Levitte* 2816 2817 * Revert blinding in ECDSA sign and instead make problematic addition 2818 length-invariant. Switch even to fixed-length Montgomery multiplication. 2819 2820 *Andy Polyakov* 2821 2822 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2823 step for binary curves. The new implementation is based on formulae from 2824 differential addition-and-doubling in mixed Lopez-Dahab projective 2825 coordinates, modified to independently blind the operands. 2826 2827 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2828 2829 * Add a scaffold to optionally enhance the Montgomery ladder implementation 2830 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 2831 EC_METHODs to implement their own specialized "ladder step", to take 2832 advantage of more favorable coordinate systems or more efficient 2833 differential addition-and-doubling algorithms. 2834 2835 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2836 2837 * Modified the random device based seed sources to keep the relevant 2838 file descriptors open rather than reopening them on each access. 2839 This allows such sources to operate in a chroot() jail without 2840 the associated device nodes being available. This behaviour can be 2841 controlled using RAND_keep_random_devices_open(). 2842 2843 *Paul Dale* 2844 2845 * Numerous side-channel attack mitigations have been applied. This may have 2846 performance impacts for some algorithms for the benefit of improved 2847 security. Specific changes are noted in this change log by their respective 2848 authors. 2849 2850 *Matt Caswell* 2851 2852 * AIX shared library support overhaul. Switch to AIX "natural" way of 2853 handling shared libraries, which means collecting shared objects of 2854 different versions and bitnesses in one common archive. This allows to 2855 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 2856 doesn't affect the way 3rd party applications are linked, only how 2857 multi-version installation is managed. 2858 2859 *Andy Polyakov* 2860 2861 * Make ec_group_do_inverse_ord() more robust and available to other 2862 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 2863 mitigations are applied to the fallback BN_mod_inverse(). 2864 When using this function rather than BN_mod_inverse() directly, new 2865 EC cryptosystem implementations are then safer-by-default. 2866 2867 *Billy Bob Brumley* 2868 2869 * Add coordinate blinding for EC_POINT and implement projective 2870 coordinate blinding for generic prime curves as a countermeasure to 2871 chosen point SCA attacks. 2872 2873 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 2874 2875 * Add blinding to ECDSA and DSA signatures to protect against side channel 2876 attacks discovered by Keegan Ryan (NCC Group). 2877 2878 *Matt Caswell* 2879 2880 * Enforce checking in the `pkeyutl` command to ensure that the input 2881 length does not exceed the maximum supported digest length when performing 2882 a sign, verify or verifyrecover operation. 2883 2884 *Matt Caswell* 2885 2886 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 2887 I/O in combination with something like select() or poll() will hang. This 2888 can be turned off again using SSL_CTX_clear_mode(). 2889 Many applications do not properly handle non-application data records, and 2890 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 2891 around the problems in those applications, but can also break some. 2892 It's recommended to read the manpages about SSL_read(), SSL_write(), 2893 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 2894 SSL_CTX_set_read_ahead() again. 2895 2896 *Kurt Roeckx* 2897 2898 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 2899 now allow empty (zero character) pass phrases. 2900 2901 *Richard Levitte* 2902 2903 * Apply blinding to binary field modular inversion and remove patent 2904 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 2905 2906 *Billy Bob Brumley* 2907 2908 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 2909 binary and prime elliptic curves. 2910 2911 *Billy Bob Brumley* 2912 2913 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 2914 constant time fixed point multiplication. 2915 2916 *Billy Bob Brumley* 2917 2918 * Revise elliptic curve scalar multiplication with timing attack 2919 defenses: ec_wNAF_mul redirects to a constant time implementation 2920 when computing fixed point and variable point multiplication (which 2921 in OpenSSL are mostly used with secret scalars in keygen, sign, 2922 ECDH derive operations). 2923 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 2924 Sohaib ul Hassan* 2925 2926 * Updated CONTRIBUTING 2927 2928 *Rich Salz* 2929 2930 * Updated DRBG / RAND to request nonce and additional low entropy 2931 randomness from the system. 2932 2933 *Matthias St. Pierre* 2934 2935 * Updated 'openssl rehash' to use OpenSSL consistent default. 2936 2937 *Richard Levitte* 2938 2939 * Moved the load of the ssl_conf module to libcrypto, which helps 2940 loading engines that libssl uses before libssl is initialised. 2941 2942 *Matt Caswell* 2943 2944 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 2945 2946 *Matt Caswell* 2947 2948 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 2949 2950 *Ingo Schwarze, Rich Salz* 2951 2952 * Added output of accepting IP address and port for 'openssl s_server' 2953 2954 *Richard Levitte* 2955 2956 * Added a new API for TLSv1.3 ciphersuites: 2957 SSL_CTX_set_ciphersuites() 2958 SSL_set_ciphersuites() 2959 2960 *Matt Caswell* 2961 2962 * Memory allocation failures consistently add an error to the error 2963 stack. 2964 2965 *Rich Salz* 2966 2967 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 2968 in libcrypto when run as setuid/setgid. 2969 2970 *Bernd Edlinger* 2971 2972 * Load any config file by default when libssl is used. 2973 2974 *Matt Caswell* 2975 2976 * Added new public header file <openssl/rand_drbg.h> and documentation 2977 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 2978 2979 *Matthias St. Pierre* 2980 2981 * QNX support removed (cannot find contributors to get their approval 2982 for the license change). 2983 2984 *Rich Salz* 2985 2986 * TLSv1.3 replay protection for early data has been implemented. See the 2987 SSL_read_early_data() man page for further details. 2988 2989 *Matt Caswell* 2990 2991 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 2992 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 2993 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 2994 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 2995 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 2996 configuration has been separated out. See the ciphers man page or the 2997 SSL_CTX_set_ciphersuites() man page for more information. 2998 2999 *Matt Caswell* 3000 3001 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 3002 in responder mode now supports the new "-multi" option, which 3003 spawns the specified number of child processes to handle OCSP 3004 requests. The "-timeout" option now also limits the OCSP 3005 responder's patience to wait to receive the full client request 3006 on a newly accepted connection. Child processes are respawned 3007 as needed, and the CA index file is automatically reloaded 3008 when changed. This makes it possible to run the "ocsp" responder 3009 as a long-running service, making the OpenSSL CA somewhat more 3010 feature-complete. In this mode, most diagnostic messages logged 3011 after entering the event loop are logged via syslog(3) rather than 3012 written to stderr. 3013 3014 *Viktor Dukhovni* 3015 3016 * Added support for X448 and Ed448. Heavily based on original work by 3017 Mike Hamburg. 3018 3019 *Matt Caswell* 3020 3021 * Extend OSSL_STORE with capabilities to search and to narrow the set of 3022 objects loaded. This adds the functions OSSL_STORE_expect() and 3023 OSSL_STORE_find() as well as needed tools to construct searches and 3024 get the search data out of them. 3025 3026 *Richard Levitte* 3027 3028 * Support for TLSv1.3 added. Note that users upgrading from an earlier 3029 version of OpenSSL should review their configuration settings to ensure 3030 that they are still appropriate for TLSv1.3. For further information see: 3031 <https://wiki.openssl.org/index.php/TLS1.3> 3032 3033 *Matt Caswell* 3034 3035 * Grand redesign of the OpenSSL random generator 3036 3037 The default RAND method now utilizes an AES-CTR DRBG according to 3038 NIST standard SP 800-90Ar1. The new random generator is essentially 3039 a port of the default random generator from the OpenSSL FIPS 2.0 3040 object module. It is a hybrid deterministic random bit generator 3041 using an AES-CTR bit stream and which seeds and reseeds itself 3042 automatically using trusted system entropy sources. 3043 3044 Some of its new features are: 3045 - Support for multiple DRBG instances with seed chaining. 3046 - The default RAND method makes use of a DRBG. 3047 - There is a public and private DRBG instance. 3048 - The DRBG instances are fork-safe. 3049 - Keep all global DRBG instances on the secure heap if it is enabled. 3050 - The public and private DRBG instance are per thread for lock free 3051 operation 3052 3053 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 3054 3055 * Changed Configure so it only says what it does and doesn't dump 3056 so much data. Instead, ./configdata.pm should be used as a script 3057 to display all sorts of configuration data. 3058 3059 *Richard Levitte* 3060 3061 * Added processing of "make variables" to Configure. 3062 3063 *Richard Levitte* 3064 3065 * Added SHA512/224 and SHA512/256 algorithm support. 3066 3067 *Paul Dale* 3068 3069 * The last traces of Netware support, first removed in 1.1.0, have 3070 now been removed. 3071 3072 *Rich Salz* 3073 3074 * Get rid of Makefile.shared, and in the process, make the processing 3075 of certain files (rc.obj, or the .def/.map/.opt files produced from 3076 the ordinal files) more visible and hopefully easier to trace and 3077 debug (or make silent). 3078 3079 *Richard Levitte* 3080 3081 * Make it possible to have environment variable assignments as 3082 arguments to config / Configure. 3083 3084 *Richard Levitte* 3085 3086 * Add multi-prime RSA (RFC 8017) support. 3087 3088 *Paul Yang* 3089 3090 * Add SM3 implemented according to GB/T 32905-2016 3091 *Jack Lloyd <jack.lloyd@ribose.com>,* 3092 *Ronald Tse <ronald.tse@ribose.com>,* 3093 *Erick Borsboom <erick.borsboom@ribose.com>* 3094 3095 * Add 'Maximum Fragment Length' TLS extension negotiation and support 3096 as documented in RFC6066. 3097 Based on a patch from Tomasz Moń 3098 3099 *Filipe Raimundo da Silva* 3100 3101 * Add SM4 implemented according to GB/T 32907-2016. 3102 *Jack Lloyd <jack.lloyd@ribose.com>,* 3103 *Ronald Tse <ronald.tse@ribose.com>,* 3104 *Erick Borsboom <erick.borsboom@ribose.com>* 3105 3106 * Reimplement -newreq-nodes and ERR_error_string_n; the 3107 original author does not agree with the license change. 3108 3109 *Rich Salz* 3110 3111 * Add ARIA AEAD TLS support. 3112 3113 *Jon Spillett* 3114 3115 * Some macro definitions to support VS6 have been removed. Visual 3116 Studio 6 has not worked since 1.1.0 3117 3118 *Rich Salz* 3119 3120 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 3121 without clearing the errors. 3122 3123 *Richard Levitte* 3124 3125 * Add "atfork" functions. If building on a system that without 3126 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 3127 requirements. The RAND facility now uses/requires this. 3128 3129 *Rich Salz* 3130 3131 * Add SHA3. 3132 3133 *Andy Polyakov* 3134 3135 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3136 not possible to disable entirely. However, it's still possible to 3137 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3138 as a fallback). 3139 3140 To disable, configure with 'no-ui-console'. 'no-ui' is still 3141 possible to use as an alias. Check at compile time with the 3142 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3143 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3144 3145 *Richard Levitte* 3146 3147 * Add a STORE module, which implements a uniform and URI based reader of 3148 stores that can contain keys, certificates, CRLs and numerous other 3149 objects. The main API is loosely based on a few stdio functions, 3150 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3151 OSSL_STORE_error and OSSL_STORE_close. 3152 The implementation uses backends called "loaders" to implement arbitrary 3153 URI schemes. There is one built in "loader" for the 'file' scheme. 3154 3155 *Richard Levitte* 3156 3157 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3158 then adjusted to work on FreeBSD 8.4 as well. 3159 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3160 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3161 3162 *Richard Levitte* 3163 3164 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3165 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3166 error code calls like this: 3167 3168 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3169 3170 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3171 that can be encoded in C. For the foreseeable future, this will only 3172 affect new modules. 3173 3174 *Richard Levitte and Tim Hudson* 3175 3176 * Removed BSD cryptodev engine. 3177 3178 *Rich Salz* 3179 3180 * Add a build target 'build_all_generated', to build all generated files 3181 and only that. This can be used to prepare everything that requires 3182 things like perl for a system that lacks perl and then move everything 3183 to that system and do the rest of the build there. 3184 3185 *Richard Levitte* 3186 3187 * In the UI interface, make it possible to duplicate the user data. This 3188 can be used by engines that need to retain the data for a longer time 3189 than just the call where this user data is passed. 3190 3191 *Richard Levitte* 3192 3193 * Ignore the '-named_curve auto' value for compatibility of applications 3194 with OpenSSL 1.0.2. 3195 3196 *Tomáš Mráz <tmraz@fedoraproject.org>* 3197 3198 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3199 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3200 alerts across multiple records (some of which could be empty). In practice 3201 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3202 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3203 support this at all. Supporting it adds significant complexity to the 3204 record layer, and its removal is unlikely to cause interoperability 3205 issues. 3206 3207 *Matt Caswell* 3208 3209 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3210 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3211 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3212 in OpenSSL 1.2.0. 3213 3214 *Richard Levitte* 3215 3216 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3217 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3218 3219 *Richard Levitte, Andy Polyakov* 3220 3221 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3222 does for RSA, etc. 3223 3224 *Richard Levitte* 3225 3226 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3227 platform rather than 'mingw'. 3228 3229 *Richard Levitte* 3230 3231 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3232 success if they are asked to add an object which already exists 3233 in the store. This change cascades to other functions which load 3234 certificates and CRLs. 3235 3236 *Paul Dale* 3237 3238 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3239 facilitate stack unwinding even from assembly subroutines. 3240 3241 *Andy Polyakov* 3242 3243 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3244 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3245 3246 *Richard Levitte* 3247 3248 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3249 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3250 which is the minimum version we support. 3251 3252 *Richard Levitte* 3253 3254 * Certificate time validation (X509_cmp_time) enforces stricter 3255 compliance with RFC 5280. Fractional seconds and timezone offsets 3256 are no longer allowed. 3257 3258 *Emilia Käsper* 3259 3260 * Add support for ARIA 3261 3262 *Paul Dale* 3263 3264 * s_client will now send the Server Name Indication (SNI) extension by 3265 default unless the new "-noservername" option is used. The server name is 3266 based on the host provided to the "-connect" option unless overridden by 3267 using "-servername". 3268 3269 *Matt Caswell* 3270 3271 * Add support for SipHash 3272 3273 *Todd Short* 3274 3275 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3276 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3277 prevent issues where no progress is being made and the peer continually 3278 sends unrecognised record types, using up resources processing them. 3279 3280 *Matt Caswell* 3281 3282 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3283 using the algorithm defined in 3284 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3285 3286 *Richard Levitte* 3287 3288 * Heartbeat support has been removed; the ABI is changed for now. 3289 3290 *Richard Levitte, Rich Salz* 3291 3292 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3293 3294 *Emilia Käsper* 3295 3296 * The RSA "null" method, which was partially supported to avoid patent 3297 issues, has been replaced to always returns NULL. 3298 3299 *Rich Salz* 3300 3301OpenSSL 1.1.0 3302------------- 3303 3304### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3305 3306 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3307 used even when parsing explicit parameters, when loading a encoded key 3308 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3309 `EC_GROUP_new_from_ecparameters()`. 3310 This prevents bypass of security hardening and performance gains, 3311 especially for curves with specialized EC_METHODs. 3312 By default, if a key encoded with explicit parameters is loaded and later 3313 encoded, the output is still encoded with explicit parameters, even if 3314 internally a "named" EC_GROUP is used for computation. 3315 3316 *Nicola Tuveri* 3317 3318 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3319 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3320 NULL. After this change, only the cofactor parameter can be NULL. It also 3321 does some minimal sanity checks on the passed order. 3322 ([CVE-2019-1547]) 3323 3324 *Billy Bob Brumley* 3325 3326 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3327 An attack is simple, if the first CMS_recipientInfo is valid but the 3328 second CMS_recipientInfo is chosen ciphertext. If the second 3329 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3330 encryption key will be replaced by garbage, and the message cannot be 3331 decoded, but if the RSA decryption fails, the correct encryption key is 3332 used and the recipient will not notice the attack. 3333 As a work around for this potential attack the length of the decrypted 3334 key must be equal to the cipher default key length, in case the 3335 certifiate is not given and all recipientInfo are tried out. 3336 The old behaviour can be re-enabled in the CMS code by setting the 3337 CMS_DEBUG_DECRYPT flag. 3338 ([CVE-2019-1563]) 3339 3340 *Bernd Edlinger* 3341 3342 * Use Windows installation paths in the mingw builds 3343 3344 Mingw isn't a POSIX environment per se, which means that Windows 3345 paths should be used for installation. 3346 ([CVE-2019-1552]) 3347 3348 *Richard Levitte* 3349 3350### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3351 3352 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3353 This changes the size when using the `genpkey` command when no size is given. 3354 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3355 generation commands to use 2048 bits by default. 3356 3357 *Kurt Roeckx* 3358 3359 * Prevent over long nonces in ChaCha20-Poly1305. 3360 3361 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3362 for every encryption operation. RFC 7539 specifies that the nonce value 3363 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3364 and front pads the nonce with 0 bytes if it is less than 12 3365 bytes. However it also incorrectly allows a nonce to be set of up to 16 3366 bytes. In this case only the last 12 bytes are significant and any 3367 additional leading bytes are ignored. 3368 3369 It is a requirement of using this cipher that nonce values are 3370 unique. Messages encrypted using a reused nonce value are susceptible to 3371 serious confidentiality and integrity attacks. If an application changes 3372 the default nonce length to be longer than 12 bytes and then makes a 3373 change to the leading bytes of the nonce expecting the new value to be a 3374 new unique nonce then such an application could inadvertently encrypt 3375 messages with a reused nonce. 3376 3377 Additionally the ignored bytes in a long nonce are not covered by the 3378 integrity guarantee of this cipher. Any application that relies on the 3379 integrity of these ignored leading bytes of a long nonce may be further 3380 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3381 is safe because no such use sets such a long nonce value. However user 3382 applications that use this cipher directly and set a non-default nonce 3383 length to be longer than 12 bytes may be vulnerable. 3384 3385 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3386 Greef of Ronomon. 3387 ([CVE-2019-1543]) 3388 3389 *Matt Caswell* 3390 3391 * Added SCA hardening for modular field inversion in EC_GROUP through 3392 a new dedicated field_inv() pointer in EC_METHOD. 3393 This also addresses a leakage affecting conversions from projective 3394 to affine coordinates. 3395 3396 *Billy Bob Brumley, Nicola Tuveri* 3397 3398 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3399 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3400 3401 *Bernd Edlinger* 3402 3403 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3404 3405 *Richard Levitte* 3406 3407 * Remove the 'dist' target and add a tarball building script. The 3408 'dist' target has fallen out of use, and it shouldn't be 3409 necessary to configure just to create a source distribution. 3410 3411 *Richard Levitte* 3412 3413### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3414 3415 * Timing vulnerability in DSA signature generation 3416 3417 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3418 timing side channel attack. An attacker could use variations in the signing 3419 algorithm to recover the private key. 3420 3421 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3422 ([CVE-2018-0734]) 3423 3424 *Paul Dale* 3425 3426 * Timing vulnerability in ECDSA signature generation 3427 3428 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3429 timing side channel attack. An attacker could use variations in the signing 3430 algorithm to recover the private key. 3431 3432 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3433 ([CVE-2018-0735]) 3434 3435 *Paul Dale* 3436 3437 * Add coordinate blinding for EC_POINT and implement projective 3438 coordinate blinding for generic prime curves as a countermeasure to 3439 chosen point SCA attacks. 3440 3441 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3442 3443### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3444 3445 * Client DoS due to large DH parameter 3446 3447 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3448 malicious server can send a very large prime value to the client. This will 3449 cause the client to spend an unreasonably long period of time generating a 3450 key for this prime resulting in a hang until the client has finished. This 3451 could be exploited in a Denial Of Service attack. 3452 3453 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3454 ([CVE-2018-0732]) 3455 3456 *Guido Vranken* 3457 3458 * Cache timing vulnerability in RSA Key Generation 3459 3460 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3461 a cache timing side channel attack. An attacker with sufficient access to 3462 mount cache timing attacks during the RSA key generation process could 3463 recover the private key. 3464 3465 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3466 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3467 ([CVE-2018-0737]) 3468 3469 *Billy Brumley* 3470 3471 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3472 parameter is no longer accepted, as it leads to a corrupt table. NULL 3473 pem_str is reserved for alias entries only. 3474 3475 *Richard Levitte* 3476 3477 * Revert blinding in ECDSA sign and instead make problematic addition 3478 length-invariant. Switch even to fixed-length Montgomery multiplication. 3479 3480 *Andy Polyakov* 3481 3482 * Change generating and checking of primes so that the error rate of not 3483 being prime depends on the intended use based on the size of the input. 3484 For larger primes this will result in more rounds of Miller-Rabin. 3485 The maximal error rate for primes with more than 1080 bits is lowered 3486 to 2^-128. 3487 3488 *Kurt Roeckx, Annie Yousar* 3489 3490 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3491 3492 *Kurt Roeckx* 3493 3494 * Add blinding to ECDSA and DSA signatures to protect against side channel 3495 attacks discovered by Keegan Ryan (NCC Group). 3496 3497 *Matt Caswell* 3498 3499 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3500 now allow empty (zero character) pass phrases. 3501 3502 *Richard Levitte* 3503 3504 * Certificate time validation (X509_cmp_time) enforces stricter 3505 compliance with RFC 5280. Fractional seconds and timezone offsets 3506 are no longer allowed. 3507 3508 *Emilia Käsper* 3509 3510 * Fixed a text canonicalisation bug in CMS 3511 3512 Where a CMS detached signature is used with text content the text goes 3513 through a canonicalisation process first prior to signing or verifying a 3514 signature. This process strips trailing space at the end of lines, converts 3515 line terminators to CRLF and removes additional trailing line terminators 3516 at the end of a file. A bug in the canonicalisation process meant that 3517 some characters, such as form-feed, were incorrectly treated as whitespace 3518 and removed. This is contrary to the specification (RFC5485). This fix 3519 could mean that detached text data signed with an earlier version of 3520 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3521 signed with a fixed OpenSSL may fail to verify with an earlier version of 3522 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3523 and use the "-binary" flag (for the "cms" command line application) or set 3524 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3525 3526 *Matt Caswell* 3527 3528### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3529 3530 * Constructed ASN.1 types with a recursive definition could exceed the stack 3531 3532 Constructed ASN.1 types with a recursive definition (such as can be found 3533 in PKCS7) could eventually exceed the stack given malicious input with 3534 excessive recursion. This could result in a Denial Of Service attack. There 3535 are no such structures used within SSL/TLS that come from untrusted sources 3536 so this is considered safe. 3537 3538 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3539 project. 3540 ([CVE-2018-0739]) 3541 3542 *Matt Caswell* 3543 3544 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3545 3546 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3547 effectively reduced to only comparing the least significant bit of each 3548 byte. This allows an attacker to forge messages that would be considered as 3549 authenticated in an amount of tries lower than that guaranteed by the 3550 security claims of the scheme. The module can only be compiled by the 3551 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3552 3553 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3554 (IBM). 3555 ([CVE-2018-0733]) 3556 3557 *Andy Polyakov* 3558 3559 * Add a build target 'build_all_generated', to build all generated files 3560 and only that. This can be used to prepare everything that requires 3561 things like perl for a system that lacks perl and then move everything 3562 to that system and do the rest of the build there. 3563 3564 *Richard Levitte* 3565 3566 * Backport SSL_OP_NO_RENGOTIATION 3567 3568 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3569 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3570 changes this is no longer possible in 1.1.0. Therefore the new 3571 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3572 1.1.0 to provide equivalent functionality. 3573 3574 Note that if an application built against 1.1.0h headers (or above) is run 3575 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3576 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3577 3578 *Matt Caswell* 3579 3580 * Removed the OS390-Unix config target. It relied on a script that doesn't 3581 exist. 3582 3583 *Rich Salz* 3584 3585 * rsaz_1024_mul_avx2 overflow bug on x86_64 3586 3587 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3588 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3589 Analysis suggests that attacks against RSA and DSA as a result of this 3590 defect would be very difficult to perform and are not believed likely. 3591 Attacks against DH1024 are considered just feasible, because most of the 3592 work necessary to deduce information about a private key may be performed 3593 offline. The amount of resources required for such an attack would be 3594 significant. However, for an attack on TLS to be meaningful, the server 3595 would have to share the DH1024 private key among multiple clients, which is 3596 no longer an option since CVE-2016-0701. 3597 3598 This only affects processors that support the AVX2 but not ADX extensions 3599 like Intel Haswell (4th generation). 3600 3601 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3602 was originally found via the OSS-Fuzz project. 3603 ([CVE-2017-3738]) 3604 3605 *Andy Polyakov* 3606 3607### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3608 3609 * bn_sqrx8x_internal carry bug on x86_64 3610 3611 There is a carry propagating bug in the x86_64 Montgomery squaring 3612 procedure. No EC algorithms are affected. Analysis suggests that attacks 3613 against RSA and DSA as a result of this defect would be very difficult to 3614 perform and are not believed likely. Attacks against DH are considered just 3615 feasible (although very difficult) because most of the work necessary to 3616 deduce information about a private key may be performed offline. The amount 3617 of resources required for such an attack would be very significant and 3618 likely only accessible to a limited number of attackers. An attacker would 3619 additionally need online access to an unpatched system using the target 3620 private key in a scenario with persistent DH parameters and a private 3621 key that is shared between multiple clients. 3622 3623 This only affects processors that support the BMI1, BMI2 and ADX extensions 3624 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3625 3626 This issue was reported to OpenSSL by the OSS-Fuzz project. 3627 ([CVE-2017-3736]) 3628 3629 *Andy Polyakov* 3630 3631 * Malformed X.509 IPAddressFamily could cause OOB read 3632 3633 If an X.509 certificate has a malformed IPAddressFamily extension, 3634 OpenSSL could do a one-byte buffer overread. The most likely result 3635 would be an erroneous display of the certificate in text format. 3636 3637 This issue was reported to OpenSSL by the OSS-Fuzz project. 3638 ([CVE-2017-3735]) 3639 3640 *Rich Salz* 3641 3642### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3643 3644 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3645 platform rather than 'mingw'. 3646 3647 *Richard Levitte* 3648 3649 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3650 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3651 which is the minimum version we support. 3652 3653 *Richard Levitte* 3654 3655### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3656 3657 * Encrypt-Then-Mac renegotiation crash 3658 3659 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3660 negotiated where it was not in the original handshake (or vice-versa) then 3661 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3662 and servers are affected. 3663 3664 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3665 ([CVE-2017-3733]) 3666 3667 *Matt Caswell* 3668 3669### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3670 3671 * Truncated packet could crash via OOB read 3672 3673 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3674 cipher is being used, then a truncated packet can cause that host to 3675 perform an out-of-bounds read, usually resulting in a crash. 3676 3677 This issue was reported to OpenSSL by Robert Święcki of Google. 3678 ([CVE-2017-3731]) 3679 3680 *Andy Polyakov* 3681 3682 * Bad (EC)DHE parameters cause a client crash 3683 3684 If a malicious server supplies bad parameters for a DHE or ECDHE key 3685 exchange then this can result in the client attempting to dereference a 3686 NULL pointer leading to a client crash. This could be exploited in a Denial 3687 of Service attack. 3688 3689 This issue was reported to OpenSSL by Guido Vranken. 3690 ([CVE-2017-3730]) 3691 3692 *Matt Caswell* 3693 3694 * BN_mod_exp may produce incorrect results on x86_64 3695 3696 There is a carry propagating bug in the x86_64 Montgomery squaring 3697 procedure. No EC algorithms are affected. Analysis suggests that attacks 3698 against RSA and DSA as a result of this defect would be very difficult to 3699 perform and are not believed likely. Attacks against DH are considered just 3700 feasible (although very difficult) because most of the work necessary to 3701 deduce information about a private key may be performed offline. The amount 3702 of resources required for such an attack would be very significant and 3703 likely only accessible to a limited number of attackers. An attacker would 3704 additionally need online access to an unpatched system using the target 3705 private key in a scenario with persistent DH parameters and a private 3706 key that is shared between multiple clients. For example this can occur by 3707 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3708 similar to CVE-2015-3193 but must be treated as a separate problem. 3709 3710 This issue was reported to OpenSSL by the OSS-Fuzz project. 3711 ([CVE-2017-3732]) 3712 3713 *Andy Polyakov* 3714 3715### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3716 3717 * ChaCha20/Poly1305 heap-buffer-overflow 3718 3719 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3720 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3721 crash. This issue is not considered to be exploitable beyond a DoS. 3722 3723 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3724 ([CVE-2016-7054]) 3725 3726 *Richard Levitte* 3727 3728 * CMS Null dereference 3729 3730 Applications parsing invalid CMS structures can crash with a NULL pointer 3731 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3732 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3733 structure callback if an attempt is made to free certain invalid encodings. 3734 Only CHOICE structures using a callback which do not handle NULL value are 3735 affected. 3736 3737 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3738 ([CVE-2016-7053]) 3739 3740 *Stephen Henson* 3741 3742 * Montgomery multiplication may produce incorrect results 3743 3744 There is a carry propagating bug in the Broadwell-specific Montgomery 3745 multiplication procedure that handles input lengths divisible by, but 3746 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3747 and DH private keys are impossible. This is because the subroutine in 3748 question is not used in operations with the private key itself and an input 3749 of the attacker's direct choice. Otherwise the bug can manifest itself as 3750 transient authentication and key negotiation failures or reproducible 3751 erroneous outcome of public-key operations with specially crafted input. 3752 Among EC algorithms only Brainpool P-512 curves are affected and one 3753 presumably can attack ECDH key negotiation. Impact was not analyzed in 3754 detail, because pre-requisites for attack are considered unlikely. Namely 3755 multiple clients have to choose the curve in question and the server has to 3756 share the private key among them, neither of which is default behaviour. 3757 Even then only clients that chose the curve will be affected. 3758 3759 This issue was publicly reported as transient failures and was not 3760 initially recognized as a security issue. Thanks to Richard Morgan for 3761 providing reproducible case. 3762 ([CVE-2016-7055]) 3763 3764 *Andy Polyakov* 3765 3766 * Removed automatic addition of RPATH in shared libraries and executables, 3767 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 3768 3769 *Richard Levitte* 3770 3771### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 3772 3773 * Fix Use After Free for large message sizes 3774 3775 The patch applied to address CVE-2016-6307 resulted in an issue where if a 3776 message larger than approx 16k is received then the underlying buffer to 3777 store the incoming message is reallocated and moved. Unfortunately a 3778 dangling pointer to the old location is left which results in an attempt to 3779 write to the previously freed location. This is likely to result in a 3780 crash, however it could potentially lead to execution of arbitrary code. 3781 3782 This issue only affects OpenSSL 1.1.0a. 3783 3784 This issue was reported to OpenSSL by Robert Święcki. 3785 ([CVE-2016-6309]) 3786 3787 *Matt Caswell* 3788 3789### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 3790 3791 * OCSP Status Request extension unbounded memory growth 3792 3793 A malicious client can send an excessively large OCSP Status Request 3794 extension. If that client continually requests renegotiation, sending a 3795 large OCSP Status Request extension each time, then there will be unbounded 3796 memory growth on the server. This will eventually lead to a Denial Of 3797 Service attack through memory exhaustion. Servers with a default 3798 configuration are vulnerable even if they do not support OCSP. Builds using 3799 the "no-ocsp" build time option are not affected. 3800 3801 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3802 ([CVE-2016-6304]) 3803 3804 *Matt Caswell* 3805 3806 * SSL_peek() hang on empty record 3807 3808 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 3809 sends an empty record. This could be exploited by a malicious peer in a 3810 Denial Of Service attack. 3811 3812 This issue was reported to OpenSSL by Alex Gaynor. 3813 ([CVE-2016-6305]) 3814 3815 *Matt Caswell* 3816 3817 * Excessive allocation of memory in tls_get_message_header() and 3818 dtls1_preprocess_fragment() 3819 3820 A (D)TLS message includes 3 bytes for its length in the header for the 3821 message. This would allow for messages up to 16Mb in length. Messages of 3822 this length are excessive and OpenSSL includes a check to ensure that a 3823 peer is sending reasonably sized messages in order to avoid too much memory 3824 being consumed to service a connection. A flaw in the logic of version 3825 1.1.0 means that memory for the message is allocated too early, prior to 3826 the excessive message length check. Due to way memory is allocated in 3827 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 3828 to service a connection. This could lead to a Denial of Service through 3829 memory exhaustion. However, the excessive message length check still takes 3830 place, and this would cause the connection to immediately fail. Assuming 3831 that the application calls SSL_free() on the failed connection in a timely 3832 manner then the 21Mb of allocated memory will then be immediately freed 3833 again. Therefore the excessive memory allocation will be transitory in 3834 nature. This then means that there is only a security impact if: 3835 3836 1) The application does not call SSL_free() in a timely manner in the event 3837 that the connection fails 3838 or 3839 2) The application is working in a constrained environment where there is 3840 very little free memory 3841 or 3842 3) The attacker initiates multiple connection attempts such that there are 3843 multiple connections in a state where memory has been allocated for the 3844 connection; SSL_free() has not yet been called; and there is insufficient 3845 memory to service the multiple requests. 3846 3847 Except in the instance of (1) above any Denial Of Service is likely to be 3848 transitory because as soon as the connection fails the memory is 3849 subsequently freed again in the SSL_free() call. However there is an 3850 increased risk during this period of application crashes due to the lack of 3851 memory - which would then mean a more serious Denial of Service. 3852 3853 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3854 (CVE-2016-6307 and CVE-2016-6308) 3855 3856 *Matt Caswell* 3857 3858 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 3859 had to be removed. Primary reason is that vendor assembler can't 3860 assemble our modules with -KPIC flag. As result it, assembly 3861 support, was not even available as option. But its lack means 3862 lack of side-channel resistant code, which is incompatible with 3863 security by todays standards. Fortunately gcc is readily available 3864 prepackaged option, which we firmly point at... 3865 3866 *Andy Polyakov* 3867 3868### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 3869 3870 * Windows command-line tool supports UTF-8 opt-in option for arguments 3871 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 3872 (to any value) allows Windows user to access PKCS#12 file generated 3873 with Windows CryptoAPI and protected with non-ASCII password, as well 3874 as files generated under UTF-8 locale on Linux also protected with 3875 non-ASCII password. 3876 3877 *Andy Polyakov* 3878 3879 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 3880 have been disabled by default and removed from DEFAULT, just like RC4. 3881 See the RC4 item below to re-enable both. 3882 3883 *Rich Salz* 3884 3885 * The method for finding the storage location for the Windows RAND seed file 3886 has changed. First we check %RANDFILE%. If that is not set then we check 3887 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 3888 all else fails we fall back to C:\. 3889 3890 *Matt Caswell* 3891 3892 * The EVP_EncryptUpdate() function has had its return type changed from void 3893 to int. A return of 0 indicates and error while a return of 1 indicates 3894 success. 3895 3896 *Matt Caswell* 3897 3898 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 3899 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 3900 off the constant time implementation for RSA, DSA and DH have been made 3901 no-ops and deprecated. 3902 3903 *Matt Caswell* 3904 3905 * Windows RAND implementation was simplified to only get entropy by 3906 calling CryptGenRandom(). Various other RAND-related tickets 3907 were also closed. 3908 3909 *Joseph Wylie Yandle, Rich Salz* 3910 3911 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 3912 and `OPENSSL_LH_`, respectively. The old names are available 3913 with API compatibility. They new names are now completely documented. 3914 3915 *Rich Salz* 3916 3917 * Unify TYPE_up_ref(obj) methods signature. 3918 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 3919 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 3920 int (instead of void) like all others TYPE_up_ref() methods. 3921 So now these methods also check the return value of CRYPTO_atomic_add(), 3922 and the validity of object reference counter. 3923 3924 *fdasilvayy@gmail.com* 3925 3926 * With Windows Visual Studio builds, the .pdb files are installed 3927 alongside the installed libraries and executables. For a static 3928 library installation, ossl_static.pdb is the associate compiler 3929 generated .pdb file to be used when linking programs. 3930 3931 *Richard Levitte* 3932 3933 * Remove openssl.spec. Packaging files belong with the packagers. 3934 3935 *Richard Levitte* 3936 3937 * Automatic Darwin/OSX configuration has had a refresh, it will now 3938 recognise x86_64 architectures automatically. You can still decide 3939 to build for a different bitness with the environment variable 3940 KERNEL_BITS (can be 32 or 64), for example: 3941 3942 KERNEL_BITS=32 ./config 3943 3944 *Richard Levitte* 3945 3946 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 3947 256 bit AES and HMAC with SHA256. 3948 3949 *Steve Henson* 3950 3951 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 3952 3953 *Andy Polyakov* 3954 3955 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 3956 3957 *Rich Salz* 3958 3959 * To enable users to have their own config files and build file templates, 3960 Configure looks in the directory indicated by the environment variable 3961 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 3962 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 3963 name and is used as is. 3964 3965 *Richard Levitte* 3966 3967 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 3968 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 3969 X509_CERT_FILE_CTX was removed. 3970 3971 *Rich Salz* 3972 3973 * "shared" builds are now the default. To create only static libraries use 3974 the "no-shared" Configure option. 3975 3976 *Matt Caswell* 3977 3978 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 3979 All of these option have not worked for some while and are fundamental 3980 algorithms. 3981 3982 *Matt Caswell* 3983 3984 * Make various cleanup routines no-ops and mark them as deprecated. Most 3985 global cleanup functions are no longer required because they are handled 3986 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 3987 Explicitly de-initing can cause problems (e.g. where a library that uses 3988 OpenSSL de-inits, but an application is still using it). The affected 3989 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 3990 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 3991 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 3992 COMP_zlib_cleanup(). 3993 3994 *Matt Caswell* 3995 3996 * --strict-warnings no longer enables runtime debugging options 3997 such as REF_DEBUG. Instead, debug options are automatically 3998 enabled with '--debug' builds. 3999 4000 *Andy Polyakov, Emilia Käsper* 4001 4002 * Made DH and DH_METHOD opaque. The structures for managing DH objects 4003 have been moved out of the public header files. New functions for managing 4004 these have been added. 4005 4006 *Matt Caswell* 4007 4008 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 4009 objects have been moved out of the public header files. New 4010 functions for managing these have been added. 4011 4012 *Richard Levitte* 4013 4014 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 4015 have been moved out of the public header files. New functions for managing 4016 these have been added. 4017 4018 *Matt Caswell* 4019 4020 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 4021 moved out of the public header files. New functions for managing these 4022 have been added. 4023 4024 *Matt Caswell* 4025 4026 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 4027 4028 *Matt Caswell* 4029 4030 * Removed the mk1mf build scripts. 4031 4032 *Richard Levitte* 4033 4034 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 4035 it is always safe to #include a header now. 4036 4037 *Rich Salz* 4038 4039 * Removed the aged BC-32 config and all its supporting scripts 4040 4041 *Richard Levitte* 4042 4043 * Removed support for Ultrix, Netware, and OS/2. 4044 4045 *Rich Salz* 4046 4047 * Add support for HKDF. 4048 4049 *Alessandro Ghedini* 4050 4051 * Add support for blake2b and blake2s 4052 4053 *Bill Cox* 4054 4055 * Added support for "pipelining". Ciphers that have the 4056 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 4057 encryptions/decryptions simultaneously. There are currently no built-in 4058 ciphers with this property but the expectation is that engines will be able 4059 to offer it to significantly improve throughput. Support has been extended 4060 into libssl so that multiple records for a single connection can be 4061 processed in one go (for >=TLS 1.1). 4062 4063 *Matt Caswell* 4064 4065 * Added the AFALG engine. This is an async capable engine which is able to 4066 offload work to the Linux kernel. In this initial version it only supports 4067 AES128-CBC. The kernel must be version 4.1.0 or greater. 4068 4069 *Catriona Lucey* 4070 4071 * OpenSSL now uses a new threading API. It is no longer necessary to 4072 set locking callbacks to use OpenSSL in a multi-threaded environment. There 4073 are two supported threading models: pthreads and windows threads. It is 4074 also possible to configure OpenSSL at compile time for "no-threads". The 4075 old threading API should no longer be used. The functions have been 4076 replaced with "no-op" compatibility macros. 4077 4078 *Alessandro Ghedini, Matt Caswell* 4079 4080 * Modify behavior of ALPN to invoke callback after SNI/servername 4081 callback, such that updates to the SSL_CTX affect ALPN. 4082 4083 *Todd Short* 4084 4085 * Add SSL_CIPHER queries for authentication and key-exchange. 4086 4087 *Todd Short* 4088 4089 * Changes to the DEFAULT cipherlist: 4090 - Prefer (EC)DHE handshakes over plain RSA. 4091 - Prefer AEAD ciphers over legacy ciphers. 4092 - Prefer ECDSA over RSA when both certificates are available. 4093 - Prefer TLSv1.2 ciphers/PRF. 4094 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 4095 default cipherlist. 4096 4097 *Emilia Käsper* 4098 4099 * Change the ECC default curve list to be this, in order: x25519, 4100 secp256r1, secp521r1, secp384r1. 4101 4102 *Rich Salz* 4103 4104 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 4105 disabled by default. They can be re-enabled using the 4106 enable-weak-ssl-ciphers option to Configure. 4107 4108 *Matt Caswell* 4109 4110 * If the server has ALPN configured, but supports no protocols that the 4111 client advertises, send a fatal "no_application_protocol" alert. 4112 This behaviour is SHALL in RFC 7301, though it isn't universally 4113 implemented by other servers. 4114 4115 *Emilia Käsper* 4116 4117 * Add X25519 support. 4118 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 4119 for public and private key encoding using the format documented in 4120 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 4121 key generation and key derivation. 4122 4123 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 4124 X25519(29). 4125 4126 *Steve Henson* 4127 4128 * Deprecate SRP_VBASE_get_by_user. 4129 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4130 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4131 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4132 seed, even if the seed is configured. 4133 4134 Users should use SRP_VBASE_get1_by_user instead. Note that in 4135 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4136 also that even though configuring the SRP seed attempts to hide 4137 invalid usernames by continuing the handshake with fake 4138 credentials, this behaviour is not constant time and no strong 4139 guarantees are made that the handshake is indistinguishable from 4140 that of a valid user. 4141 4142 *Emilia Käsper* 4143 4144 * Configuration change; it's now possible to build dynamic engines 4145 without having to build shared libraries and vice versa. This 4146 only applies to the engines in `engines/`, those in `crypto/engine/` 4147 will always be built into libcrypto (i.e. "static"). 4148 4149 Building dynamic engines is enabled by default; to disable, use 4150 the configuration option "disable-dynamic-engine". 4151 4152 The only requirements for building dynamic engines are the 4153 presence of the DSO module and building with position independent 4154 code, so they will also automatically be disabled if configuring 4155 with "disable-dso" or "disable-pic". 4156 4157 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4158 are also taken away from openssl/opensslconf.h, as they are 4159 irrelevant. 4160 4161 *Richard Levitte* 4162 4163 * Configuration change; if there is a known flag to compile 4164 position independent code, it will always be applied on the 4165 libcrypto and libssl object files, and never on the application 4166 object files. This means other libraries that use routines from 4167 libcrypto / libssl can be made into shared libraries regardless 4168 of how OpenSSL was configured. 4169 4170 If this isn't desirable, the configuration options "disable-pic" 4171 or "no-pic" can be used to disable the use of PIC. This will 4172 also disable building shared libraries and dynamic engines. 4173 4174 *Richard Levitte* 4175 4176 * Removed JPAKE code. It was experimental and has no wide use. 4177 4178 *Rich Salz* 4179 4180 * The INSTALL_PREFIX Makefile variable has been renamed to 4181 DESTDIR. That makes for less confusion on what this variable 4182 is for. Also, the configuration option --install_prefix is 4183 removed. 4184 4185 *Richard Levitte* 4186 4187 * Heartbeat for TLS has been removed and is disabled by default 4188 for DTLS; configure with enable-heartbeats. Code that uses the 4189 old #define's might need to be updated. 4190 4191 *Emilia Käsper, Rich Salz* 4192 4193 * Rename REF_CHECK to REF_DEBUG. 4194 4195 *Rich Salz* 4196 4197 * New "unified" build system 4198 4199 The "unified" build system is aimed to be a common system for all 4200 platforms we support. With it comes new support for VMS. 4201 4202 This system builds supports building in a different directory tree 4203 than the source tree. It produces one Makefile (for unix family 4204 or lookalikes), or one descrip.mms (for VMS). 4205 4206 The source of information to make the Makefile / descrip.mms is 4207 small files called 'build.info', holding the necessary 4208 information for each directory with source to compile, and a 4209 template in Configurations, like unix-Makefile.tmpl or 4210 descrip.mms.tmpl. 4211 4212 With this change, the library names were also renamed on Windows 4213 and on VMS. They now have names that are closer to the standard 4214 on Unix, and include the major version number, and in certain 4215 cases, the architecture they are built for. See "Notes on shared 4216 libraries" in INSTALL. 4217 4218 We rely heavily on the perl module Text::Template. 4219 4220 *Richard Levitte* 4221 4222 * Added support for auto-initialisation and de-initialisation of the library. 4223 OpenSSL no longer requires explicit init or deinit routines to be called, 4224 except in certain circumstances. See the OPENSSL_init_crypto() and 4225 OPENSSL_init_ssl() man pages for further information. 4226 4227 *Matt Caswell* 4228 4229 * The arguments to the DTLSv1_listen function have changed. Specifically the 4230 "peer" argument is now expected to be a BIO_ADDR object. 4231 4232 * Rewrite of BIO networking library. The BIO library lacked consistent 4233 support of IPv6, and adding it required some more extensive 4234 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4235 which hold all types of addresses and chains of address information. 4236 It also introduces a new API, with functions like BIO_socket, 4237 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4238 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4239 have been adapted accordingly. 4240 4241 *Richard Levitte* 4242 4243 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4244 the leading 0-byte. 4245 4246 *Emilia Käsper* 4247 4248 * CRIME protection: disable compression by default, even if OpenSSL is 4249 compiled with zlib enabled. Applications can still enable compression 4250 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4251 using the SSL_CONF library to configure compression. 4252 4253 *Emilia Käsper* 4254 4255 * The signature of the session callback configured with 4256 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4257 was explicitly marked as `const unsigned char*` instead of 4258 `unsigned char*`. 4259 4260 *Emilia Käsper* 4261 4262 * Always DPURIFY. Remove the use of uninitialized memory in the 4263 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4264 4265 *Emilia Käsper* 4266 4267 * Removed many obsolete configuration items, including 4268 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4269 MD2_CHAR, MD2_INT, MD2_LONG 4270 BF_PTR, BF_PTR2 4271 IDEA_SHORT, IDEA_LONG 4272 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4273 4274 *Rich Salz, with advice from Andy Polyakov* 4275 4276 * Many BN internals have been moved to an internal header file. 4277 4278 *Rich Salz with help from Andy Polyakov* 4279 4280 * Configuration and writing out the results from it has changed. 4281 Files such as Makefile include/openssl/opensslconf.h and are now 4282 produced through general templates, such as Makefile.in and 4283 crypto/opensslconf.h.in and some help from the perl module 4284 Text::Template. 4285 4286 Also, the center of configuration information is no longer 4287 Makefile. Instead, Configure produces a perl module in 4288 configdata.pm which holds most of the config data (in the hash 4289 table %config), the target data that comes from the target 4290 configuration in one of the `Configurations/*.conf` files (in 4291 %target). 4292 4293 *Richard Levitte* 4294 4295 * To clarify their intended purposes, the Configure options 4296 --prefix and --openssldir change their semantics, and become more 4297 straightforward and less interdependent. 4298 4299 --prefix shall be used exclusively to give the location INSTALLTOP 4300 where programs, scripts, libraries, include files and manuals are 4301 going to be installed. The default is now /usr/local. 4302 4303 --openssldir shall be used exclusively to give the default 4304 location OPENSSLDIR where certificates, private keys, CRLs are 4305 managed. This is also where the default openssl.cnf gets 4306 installed. 4307 If the directory given with this option is a relative path, the 4308 values of both the --prefix value and the --openssldir value will 4309 be combined to become OPENSSLDIR. 4310 The default for --openssldir is INSTALLTOP/ssl. 4311 4312 Anyone who uses --openssldir to specify where OpenSSL is to be 4313 installed MUST change to use --prefix instead. 4314 4315 *Richard Levitte* 4316 4317 * The GOST engine was out of date and therefore it has been removed. An up 4318 to date GOST engine is now being maintained in an external repository. 4319 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4320 support for GOST ciphersuites (these are only activated if a GOST engine 4321 is present). 4322 4323 *Matt Caswell* 4324 4325 * EGD is no longer supported by default; use enable-egd when 4326 configuring. 4327 4328 *Ben Kaduk and Rich Salz* 4329 4330 * The distribution now has Makefile.in files, which are used to 4331 create Makefile's when Configure is run. *Configure must be run 4332 before trying to build now.* 4333 4334 *Rich Salz* 4335 4336 * The return value for SSL_CIPHER_description() for error conditions 4337 has changed. 4338 4339 *Rich Salz* 4340 4341 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4342 4343 Obtaining and performing DNSSEC validation of TLSA records is 4344 the application's responsibility. The application provides 4345 the TLSA records of its choice to OpenSSL, and these are then 4346 used to authenticate the peer. 4347 4348 The TLSA records need not even come from DNS. They can, for 4349 example, be used to implement local end-entity certificate or 4350 trust-anchor "pinning", where the "pin" data takes the form 4351 of TLSA records, which can augment or replace verification 4352 based on the usual WebPKI public certification authorities. 4353 4354 *Viktor Dukhovni* 4355 4356 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4357 continues to support deprecated interfaces in default builds. 4358 However, applications are strongly advised to compile their 4359 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4360 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4361 or the 1.1.0 releases. 4362 4363 In environments in which all applications have been ported to 4364 not use any deprecated interfaces OpenSSL's Configure script 4365 should be used with the --api=1.1.0 option to entirely remove 4366 support for the deprecated features from the library and 4367 unconditionally disable them in the installed headers. 4368 Essentially the same effect can be achieved with the "no-deprecated" 4369 argument to Configure, except that this will always restrict 4370 the build to just the latest API, rather than a fixed API 4371 version. 4372 4373 As applications are ported to future revisions of the API, 4374 they should update their compile-time OPENSSL_API_COMPAT define 4375 accordingly, but in most cases should be able to continue to 4376 compile with later releases. 4377 4378 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4379 0x10000000L and 0x00908000L, respectively. However those 4380 versions did not support the OPENSSL_API_COMPAT feature, and 4381 so applications are not typically tested for explicit support 4382 of just the undeprecated features of either release. 4383 4384 *Viktor Dukhovni* 4385 4386 * Add support for setting the minimum and maximum supported protocol. 4387 It can bet set via the SSL_set_min_proto_version() and 4388 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4389 MaxProtocol. It's recommended to use the new APIs to disable 4390 protocols instead of disabling individual protocols using 4391 SSL_set_options() or SSL_CONF's Protocol. This change also 4392 removes support for disabling TLS 1.2 in the OpenSSL TLS 4393 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4394 4395 *Kurt Roeckx* 4396 4397 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4398 4399 *Andy Polyakov* 4400 4401 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4402 and integrates ECDSA and ECDH functionality into EC. Implementations can 4403 now redirect key generation and no longer need to convert to or from 4404 ECDSA_SIG format. 4405 4406 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4407 include the ec.h header file instead. 4408 4409 *Steve Henson* 4410 4411 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4412 ciphers who are no longer supported and drops support the ephemeral RSA key 4413 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4414 4415 *Kurt Roeckx* 4416 4417 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4418 opaque. For HMAC_CTX, the following constructors and destructors 4419 were added: 4420 4421 HMAC_CTX *HMAC_CTX_new(void); 4422 void HMAC_CTX_free(HMAC_CTX *ctx); 4423 4424 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4425 destroy such methods has been added. See EVP_MD_meth_new(3) and 4426 EVP_CIPHER_meth_new(3) for documentation. 4427 4428 Additional changes: 4429 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4430 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4431 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4432 an already created structure. 4433 2) For consistency with the majority of our object creators and 4434 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4435 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4436 for deprecated builds. 4437 4438 *Richard Levitte* 4439 4440 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4441 cryptographic operations to be performed asynchronously as long as an 4442 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4443 further details. Libssl has also had this capability integrated with the 4444 introduction of the new mode SSL_MODE_ASYNC and associated error 4445 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4446 pages. This work was developed in partnership with Intel Corp. 4447 4448 *Matt Caswell* 4449 4450 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4451 always enabled now. If you want to disable the support you should 4452 exclude it using the list of supported ciphers. This also means that the 4453 "-no_ecdhe" option has been removed from s_server. 4454 4455 *Kurt Roeckx* 4456 4457 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4458 SSL_{CTX_}set1_curves() which can set a list. 4459 4460 *Kurt Roeckx* 4461 4462 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4463 curve you want to support using SSL_{CTX_}set1_curves(). 4464 4465 *Kurt Roeckx* 4466 4467 * State machine rewrite. The state machine code has been significantly 4468 refactored in order to remove much duplication of code and solve issues 4469 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4470 further details). This change does have some associated API changes. 4471 Notably the SSL_state() function has been removed and replaced by 4472 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4473 SSL_set_state() has been removed altogether. The previous handshake states 4474 defined in ssl.h and ssl3.h have also been removed. 4475 4476 *Matt Caswell* 4477 4478 * All instances of the string "ssleay" in the public API were replaced 4479 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4480 Some error codes related to internal RSA_eay API's were renamed. 4481 4482 *Rich Salz* 4483 4484 * The demo files in crypto/threads were moved to demo/threads. 4485 4486 *Rich Salz* 4487 4488 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4489 sureware and ubsec. 4490 4491 *Matt Caswell, Rich Salz* 4492 4493 * New ASN.1 embed macro. 4494 4495 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4496 structure is not allocated: it is part of the parent. That is instead of 4497 4498 FOO *x; 4499 4500 it must be: 4501 4502 FOO x; 4503 4504 This reduces memory fragmentation and make it impossible to accidentally 4505 set a mandatory field to NULL. 4506 4507 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4508 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4509 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4510 SEQUENCE OF. 4511 4512 *Steve Henson* 4513 4514 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4515 4516 *Emilia Käsper* 4517 4518 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4519 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4520 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4521 DES and RC4 ciphersuites. 4522 4523 *Matt Caswell* 4524 4525 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4526 This changes the decoding behaviour for some invalid messages, 4527 though the change is mostly in the more lenient direction, and 4528 legacy behaviour is preserved as much as possible. 4529 4530 *Emilia Käsper* 4531 4532 * Fix no-stdio build. 4533 *David Woodhouse <David.Woodhouse@intel.com> and also* 4534 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4535 4536 * New testing framework 4537 The testing framework has been largely rewritten and is now using 4538 perl and the perl modules Test::Harness and an extended variant of 4539 Test::More called OpenSSL::Test to do its work. All test scripts in 4540 test/ have been rewritten into test recipes, and all direct calls to 4541 executables in test/Makefile have become individual recipes using the 4542 simplified testing OpenSSL::Test::Simple. 4543 4544 For documentation on our testing modules, do: 4545 4546 perldoc test/testlib/OpenSSL/Test/Simple.pm 4547 perldoc test/testlib/OpenSSL/Test.pm 4548 4549 *Richard Levitte* 4550 4551 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4552 are used; the latter aborts on memory leaks (usually checked on exit). 4553 Some undocumented "set malloc, etc., hooks" functions were removed 4554 and others were changed. All are now documented. 4555 4556 *Rich Salz* 4557 4558 * In DSA_generate_parameters_ex, if the provided seed is too short, 4559 return an error 4560 4561 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4562 4563 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4564 from RFC4279, RFC4785, RFC5487, RFC5489. 4565 4566 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4567 original RSA_PSK patch. 4568 4569 *Steve Henson* 4570 4571 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4572 era flag was never set throughout the codebase (only read). Also removed 4573 SSL3_FLAGS_POP_BUFFER which was only used if 4574 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4575 4576 *Matt Caswell* 4577 4578 * Changed the default name options in the "ca", "crl", "req" and "x509" 4579 to be "oneline" instead of "compat". 4580 4581 *Richard Levitte* 4582 4583 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4584 not aware of clients that still exhibit this bug, and the workaround 4585 hasn't been working properly for a while. 4586 4587 *Emilia Käsper* 4588 4589 * The return type of BIO_number_read() and BIO_number_written() as well as 4590 the corresponding num_read and num_write members in the BIO structure has 4591 changed from unsigned long to uint64_t. On platforms where an unsigned 4592 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4593 transferred. 4594 4595 *Matt Caswell* 4596 4597 * Given the pervasive nature of TLS extensions it is inadvisable to run 4598 OpenSSL without support for them. It also means that maintaining 4599 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4600 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4601 4602 *Matt Caswell* 4603 4604 * Removed support for the two export grade static DH ciphersuites 4605 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4606 were newly added (along with a number of other static DH ciphersuites) to 4607 1.0.2. However the two export ones have *never* worked since they were 4608 introduced. It seems strange in any case to be adding new export 4609 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4610 4611 *Matt Caswell* 4612 4613 * Version negotiation has been rewritten. In particular SSLv23_method(), 4614 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4615 and turned into macros which simply call the new preferred function names 4616 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4617 should use the new names instead. Also as part of this change the ssl23.h 4618 header file has been removed. 4619 4620 *Matt Caswell* 4621 4622 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4623 code and the associated standard is no longer considered fit-for-purpose. 4624 4625 *Matt Caswell* 4626 4627 * RT2547 was closed. When generating a private key, try to make the 4628 output file readable only by the owner. This behavior change might 4629 be noticeable when interacting with other software. 4630 4631 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4632 Added a test. 4633 4634 *Rich Salz* 4635 4636 * Added HTTP GET support to the ocsp command. 4637 4638 *Rich Salz* 4639 4640 * Changed default digest for the dgst and enc commands from MD5 to 4641 sha256 4642 4643 *Rich Salz* 4644 4645 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4646 4647 *Matt Caswell* 4648 4649 * Added support for TLS extended master secret from 4650 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4651 initial patch which was a great help during development. 4652 4653 *Steve Henson* 4654 4655 * All libssl internal structures have been removed from the public header 4656 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4657 now redundant). Users should not attempt to access internal structures 4658 directly. Instead they should use the provided API functions. 4659 4660 *Matt Caswell* 4661 4662 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4663 Access to deprecated functions can be re-enabled by running config with 4664 "enable-deprecated". In addition applications wishing to use deprecated 4665 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4666 will, by default, disable some transitive includes that previously existed 4667 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4668 4669 *Matt Caswell* 4670 4671 * Added support for OCB mode. OpenSSL has been granted a patent license 4672 compatible with the OpenSSL license for use of OCB. Details are available 4673 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4674 for OCB can be removed by calling config with no-ocb. 4675 4676 *Matt Caswell* 4677 4678 * SSLv2 support has been removed. It still supports receiving a SSLv2 4679 compatible client hello. 4680 4681 *Kurt Roeckx* 4682 4683 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4684 done while fixing the error code for the key-too-small case. 4685 4686 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4687 4688 * CA.sh has been removed; use CA.pl instead. 4689 4690 *Rich Salz* 4691 4692 * Removed old DES API. 4693 4694 *Rich Salz* 4695 4696 * Remove various unsupported platforms: 4697 Sony NEWS4 4698 BEOS and BEOS_R5 4699 NeXT 4700 SUNOS 4701 MPE/iX 4702 Sinix/ReliantUNIX RM400 4703 DGUX 4704 NCR 4705 Tandem 4706 Cray 4707 16-bit platforms such as WIN16 4708 4709 *Rich Salz* 4710 4711 * Clean up OPENSSL_NO_xxx #define's 4712 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4713 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4714 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4715 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4716 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4717 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4718 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4719 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4720 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4721 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4722 4723 *Rich Salz* 4724 4725 * Cleaned up dead code 4726 Remove all but one '#ifdef undef' which is to be looked at. 4727 4728 *Rich Salz* 4729 4730 * Clean up calling of xxx_free routines. 4731 Just like free(), fix most of the xxx_free routines to accept 4732 NULL. Remove the non-null checks from callers. Save much code. 4733 4734 *Rich Salz* 4735 4736 * Add secure heap for storage of private keys (when possible). 4737 Add BIO_s_secmem(), CBIGNUM, etc. 4738 Contributed by Akamai Technologies under our Corporate CLA. 4739 4740 *Rich Salz* 4741 4742 * Experimental support for a new, fast, unbiased prime candidate generator, 4743 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4744 4745 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4746 4747 * New output format NSS in the sess_id command line tool. This allows 4748 exporting the session id and the master key in NSS keylog format. 4749 4750 *Martin Kaiser <martin@kaiser.cx>* 4751 4752 * Harmonize version and its documentation. -f flag is used to display 4753 compilation flags. 4754 4755 *mancha <mancha1@zoho.com>* 4756 4757 * Fix eckey_priv_encode so it immediately returns an error upon a failure 4758 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 4759 4760 *mancha <mancha1@zoho.com>* 4761 4762 * Fix some double frees. These are not thought to be exploitable. 4763 4764 *mancha <mancha1@zoho.com>* 4765 4766 * A missing bounds check in the handling of the TLS heartbeat extension 4767 can be used to reveal up to 64k of memory to a connected client or 4768 server. 4769 4770 Thanks for Neel Mehta of Google Security for discovering this bug and to 4771 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4772 preparing the fix ([CVE-2014-0160]) 4773 4774 *Adam Langley, Bodo Moeller* 4775 4776 * Fix for the attack described in the paper "Recovering OpenSSL 4777 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4778 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4779 <http://eprint.iacr.org/2014/140> 4780 4781 Thanks to Yuval Yarom and Naomi Benger for discovering this 4782 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 4783 4784 *Yuval Yarom and Naomi Benger* 4785 4786 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 4787 this fixes a limitation in previous versions of OpenSSL. 4788 4789 *Steve Henson* 4790 4791 * Experimental encrypt-then-mac support. 4792 4793 Experimental support for encrypt then mac from 4794 draft-gutmann-tls-encrypt-then-mac-02.txt 4795 4796 To enable it set the appropriate extension number (0x42 for the test 4797 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 4798 4799 For non-compliant peers (i.e. just about everything) this should have no 4800 effect. 4801 4802 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 4803 4804 *Steve Henson* 4805 4806 * Add EVP support for key wrapping algorithms, to avoid problems with 4807 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 4808 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 4809 algorithms and include tests cases. 4810 4811 *Steve Henson* 4812 4813 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 4814 enveloped data. 4815 4816 *Steve Henson* 4817 4818 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 4819 MGF1 digest and OAEP label. 4820 4821 *Steve Henson* 4822 4823 * Make openssl verify return errors. 4824 4825 *Chris Palmer <palmer@google.com> and Ben Laurie* 4826 4827 * New function ASN1_TIME_diff to calculate the difference between two 4828 ASN1_TIME structures or one structure and the current time. 4829 4830 *Steve Henson* 4831 4832 * Update fips_test_suite to support multiple command line options. New 4833 test to induce all self test errors in sequence and check expected 4834 failures. 4835 4836 *Steve Henson* 4837 4838 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 4839 sign or verify all in one operation. 4840 4841 *Steve Henson* 4842 4843 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 4844 test programs and fips_test_suite. Includes functionality to parse 4845 the minimal script output of fipsalgest.pl directly. 4846 4847 *Steve Henson* 4848 4849 * Add authorisation parameter to FIPS_module_mode_set(). 4850 4851 *Steve Henson* 4852 4853 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 4854 4855 *Steve Henson* 4856 4857 * Use separate DRBG fields for internal and external flags. New function 4858 FIPS_drbg_health_check() to perform on demand health checking. Add 4859 generation tests to fips_test_suite with reduced health check interval to 4860 demonstrate periodic health checking. Add "nodh" option to 4861 fips_test_suite to skip very slow DH test. 4862 4863 *Steve Henson* 4864 4865 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 4866 based on NID. 4867 4868 *Steve Henson* 4869 4870 * More extensive health check for DRBG checking many more failure modes. 4871 New function FIPS_selftest_drbg_all() to handle every possible DRBG 4872 combination: call this in fips_test_suite. 4873 4874 *Steve Henson* 4875 4876 * Add support for canonical generation of DSA parameter 'g'. See 4877 FIPS 186-3 A.2.3. 4878 4879 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 4880 POST to handle HMAC cases. 4881 4882 *Steve Henson* 4883 4884 * Add functions FIPS_module_version() and FIPS_module_version_text() 4885 to return numerical and string versions of the FIPS module number. 4886 4887 *Steve Henson* 4888 4889 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 4890 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 4891 outside the validated module in the FIPS capable OpenSSL. 4892 4893 *Steve Henson* 4894 4895 * Minor change to DRBG entropy callback semantics. In some cases 4896 there is no multiple of the block length between min_len and 4897 max_len. Allow the callback to return more than max_len bytes 4898 of entropy but discard any extra: it is the callback's responsibility 4899 to ensure that the extra data discarded does not impact the 4900 requested amount of entropy. 4901 4902 *Steve Henson* 4903 4904 * Add PRNG security strength checks to RSA, DSA and ECDSA using 4905 information in FIPS186-3, SP800-57 and SP800-131A. 4906 4907 *Steve Henson* 4908 4909 * CCM support via EVP. Interface is very similar to GCM case except we 4910 must supply all data in one chunk (i.e. no update, final) and the 4911 message length must be supplied if AAD is used. Add algorithm test 4912 support. 4913 4914 *Steve Henson* 4915 4916 * Initial version of POST overhaul. Add POST callback to allow the status 4917 of POST to be monitored and/or failures induced. Modify fips_test_suite 4918 to use callback. Always run all selftests even if one fails. 4919 4920 *Steve Henson* 4921 4922 * XTS support including algorithm test driver in the fips_gcmtest program. 4923 Note: this does increase the maximum key length from 32 to 64 bytes but 4924 there should be no binary compatibility issues as existing applications 4925 will never use XTS mode. 4926 4927 *Steve Henson* 4928 4929 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 4930 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 4931 performs algorithm blocking for unapproved PRNG types. Also do not 4932 set PRNG type in FIPS_mode_set(): leave this to the application. 4933 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 4934 the standard OpenSSL PRNG: set additional data to a date time vector. 4935 4936 *Steve Henson* 4937 4938 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 4939 This shouldn't present any incompatibility problems because applications 4940 shouldn't be using these directly and any that are will need to rethink 4941 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 4942 4943 *Steve Henson* 4944 4945 * Extensive self tests and health checking required by SP800-90 DRBG. 4946 Remove strength parameter from FIPS_drbg_instantiate and always 4947 instantiate at maximum supported strength. 4948 4949 *Steve Henson* 4950 4951 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 4952 4953 *Steve Henson* 4954 4955 * New algorithm test program fips_dhvs to handle DH primitives only testing. 4956 4957 *Steve Henson* 4958 4959 * New function DH_compute_key_padded() to compute a DH key and pad with 4960 leading zeroes if needed: this complies with SP800-56A et al. 4961 4962 *Steve Henson* 4963 4964 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 4965 anything, incomplete, subject to change and largely untested at present. 4966 4967 *Steve Henson* 4968 4969 * Modify fipscanisteronly build option to only build the necessary object 4970 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 4971 4972 *Steve Henson* 4973 4974 * Add experimental option FIPSSYMS to give all symbols in 4975 fipscanister.o and FIPS or fips prefix. This will avoid 4976 conflicts with future versions of OpenSSL. Add perl script 4977 util/fipsas.pl to preprocess assembly language source files 4978 and rename any affected symbols. 4979 4980 *Steve Henson* 4981 4982 * Add selftest checks and algorithm block of non-fips algorithms in 4983 FIPS mode. Remove DES2 from selftests. 4984 4985 *Steve Henson* 4986 4987 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 4988 return internal method without any ENGINE dependencies. Add new 4989 tiny fips sign and verify functions. 4990 4991 *Steve Henson* 4992 4993 * New build option no-ec2m to disable characteristic 2 code. 4994 4995 *Steve Henson* 4996 4997 * New build option "fipscanisteronly". This only builds fipscanister.o 4998 and (currently) associated fips utilities. Uses the file Makefile.fips 4999 instead of Makefile.org as the prototype. 5000 5001 *Steve Henson* 5002 5003 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 5004 Update fips_gcmtest to use IV generator. 5005 5006 *Steve Henson* 5007 5008 * Initial, experimental EVP support for AES-GCM. AAD can be input by 5009 setting output buffer to NULL. The `*Final` function must be 5010 called although it will not retrieve any additional data. The tag 5011 can be set or retrieved with a ctrl. The IV length is by default 12 5012 bytes (96 bits) but can be set to an alternative value. If the IV 5013 length exceeds the maximum IV length (currently 16 bytes) it cannot be 5014 set before the key. 5015 5016 *Steve Henson* 5017 5018 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 5019 underlying do_cipher function handles all cipher semantics itself 5020 including padding and finalisation. This is useful if (for example) 5021 an ENGINE cipher handles block padding itself. The behaviour of 5022 do_cipher is subtly changed if this flag is set: the return value 5023 is the number of characters written to the output buffer (zero is 5024 no longer an error code) or a negative error code. Also if the 5025 input buffer is NULL and length 0 finalisation should be performed. 5026 5027 *Steve Henson* 5028 5029 * If a candidate issuer certificate is already part of the constructed 5030 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 5031 5032 *Steve Henson* 5033 5034 * Improve forward-security support: add functions 5035 5036 void SSL_CTX_set_not_resumable_session_callback( 5037 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 5038 void SSL_set_not_resumable_session_callback( 5039 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 5040 5041 for use by SSL/TLS servers; the callback function will be called whenever a 5042 new session is created, and gets to decide whether the session may be 5043 cached to make it resumable (return 0) or not (return 1). (As by the 5044 SSL/TLS protocol specifications, the session_id sent by the server will be 5045 empty to indicate that the session is not resumable; also, the server will 5046 not generate RFC 4507 (RFC 5077) session tickets.) 5047 5048 A simple reasonable callback implementation is to return is_forward_secure. 5049 This parameter will be set to 1 or 0 depending on the ciphersuite selected 5050 by the SSL/TLS server library, indicating whether it can provide forward 5051 security. 5052 5053 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 5054 5055 * New -verify_name option in command line utilities to set verification 5056 parameters by name. 5057 5058 *Steve Henson* 5059 5060 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 5061 Add CMAC pkey methods. 5062 5063 *Steve Henson* 5064 5065 * Experimental renegotiation in s_server -www mode. If the client 5066 browses /reneg connection is renegotiated. If /renegcert it is 5067 renegotiated requesting a certificate. 5068 5069 *Steve Henson* 5070 5071 * Add an "external" session cache for debugging purposes to s_server. This 5072 should help trace issues which normally are only apparent in deployed 5073 multi-process servers. 5074 5075 *Steve Henson* 5076 5077 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 5078 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 5079 BIO_set_cipher() and some obscure PEM functions were changed so they 5080 can now return an error. The RAND changes required a change to the 5081 RAND_METHOD structure. 5082 5083 *Steve Henson* 5084 5085 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 5086 a gcc attribute to warn if the result of a function is ignored. This 5087 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 5088 whose return value is often ignored. 5089 5090 *Steve Henson* 5091 5092 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 5093 These allow SCTs (signed certificate timestamps) to be requested and 5094 validated when establishing a connection. 5095 5096 *Rob Percival <robpercival@google.com>* 5097 5098OpenSSL 1.0.2 5099------------- 5100 5101### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 5102 5103 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 5104 used even when parsing explicit parameters, when loading a encoded key 5105 or calling `EC_GROUP_new_from_ecpkparameters()`/ 5106 `EC_GROUP_new_from_ecparameters()`. 5107 This prevents bypass of security hardening and performance gains, 5108 especially for curves with specialized EC_METHODs. 5109 By default, if a key encoded with explicit parameters is loaded and later 5110 encoded, the output is still encoded with explicit parameters, even if 5111 internally a "named" EC_GROUP is used for computation. 5112 5113 *Nicola Tuveri* 5114 5115 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 5116 this change, EC_GROUP_set_generator would accept order and/or cofactor as 5117 NULL. After this change, only the cofactor parameter can be NULL. It also 5118 does some minimal sanity checks on the passed order. 5119 ([CVE-2019-1547]) 5120 5121 *Billy Bob Brumley* 5122 5123 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 5124 An attack is simple, if the first CMS_recipientInfo is valid but the 5125 second CMS_recipientInfo is chosen ciphertext. If the second 5126 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 5127 encryption key will be replaced by garbage, and the message cannot be 5128 decoded, but if the RSA decryption fails, the correct encryption key is 5129 used and the recipient will not notice the attack. 5130 As a work around for this potential attack the length of the decrypted 5131 key must be equal to the cipher default key length, in case the 5132 certifiate is not given and all recipientInfo are tried out. 5133 The old behaviour can be re-enabled in the CMS code by setting the 5134 CMS_DEBUG_DECRYPT flag. 5135 ([CVE-2019-1563]) 5136 5137 *Bernd Edlinger* 5138 5139 * Document issue with installation paths in diverse Windows builds 5140 5141 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5142 binaries and run-time config file. 5143 ([CVE-2019-1552]) 5144 5145 *Richard Levitte* 5146 5147### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5148 5149 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5150 This changes the size when using the `genpkey` command when no size is given. 5151 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5152 generation commands to use 2048 bits by default. 5153 5154 *Kurt Roeckx* 5155 5156 * Add FIPS support for Android Arm 64-bit 5157 5158 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5159 Module in Version 2.0.10. For some reason, the corresponding target 5160 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5161 built with FIPS support on Android Arm 64-bit. This omission has been 5162 fixed. 5163 5164 *Matthias St. Pierre* 5165 5166### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5167 5168 * 0-byte record padding oracle 5169 5170 If an application encounters a fatal protocol error and then calls 5171 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5172 then OpenSSL can respond differently to the calling application if a 0 byte 5173 record is received with invalid padding compared to if a 0 byte record is 5174 received with an invalid MAC. If the application then behaves differently 5175 based on that in a way that is detectable to the remote peer, then this 5176 amounts to a padding oracle that could be used to decrypt data. 5177 5178 In order for this to be exploitable "non-stitched" ciphersuites must be in 5179 use. Stitched ciphersuites are optimised implementations of certain 5180 commonly used ciphersuites. Also the application must call SSL_shutdown() 5181 twice even if a protocol error has occurred (applications should not do 5182 this but some do anyway). 5183 5184 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5185 Aviram, with additional investigation by Steven Collison and Andrew 5186 Hourselt. It was reported to OpenSSL on 10th December 2018. 5187 ([CVE-2019-1559]) 5188 5189 *Matt Caswell* 5190 5191 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5192 5193 *Richard Levitte* 5194 5195### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5196 5197 * Microarchitecture timing vulnerability in ECC scalar multiplication 5198 5199 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5200 shown to be vulnerable to a microarchitecture timing side channel attack. 5201 An attacker with sufficient access to mount local timing attacks during 5202 ECDSA signature generation could recover the private key. 5203 5204 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5205 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5206 Nicola Tuveri. 5207 ([CVE-2018-5407]) 5208 5209 *Billy Brumley* 5210 5211 * Timing vulnerability in DSA signature generation 5212 5213 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5214 timing side channel attack. An attacker could use variations in the signing 5215 algorithm to recover the private key. 5216 5217 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5218 ([CVE-2018-0734]) 5219 5220 *Paul Dale* 5221 5222 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5223 Module, accidentally introduced while backporting security fixes from the 5224 development branch and hindering the use of ECC in FIPS mode. 5225 5226 *Nicola Tuveri* 5227 5228### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5229 5230 * Client DoS due to large DH parameter 5231 5232 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5233 malicious server can send a very large prime value to the client. This will 5234 cause the client to spend an unreasonably long period of time generating a 5235 key for this prime resulting in a hang until the client has finished. This 5236 could be exploited in a Denial Of Service attack. 5237 5238 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5239 ([CVE-2018-0732]) 5240 5241 *Guido Vranken* 5242 5243 * Cache timing vulnerability in RSA Key Generation 5244 5245 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5246 a cache timing side channel attack. An attacker with sufficient access to 5247 mount cache timing attacks during the RSA key generation process could 5248 recover the private key. 5249 5250 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5251 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5252 ([CVE-2018-0737]) 5253 5254 *Billy Brumley* 5255 5256 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5257 parameter is no longer accepted, as it leads to a corrupt table. NULL 5258 pem_str is reserved for alias entries only. 5259 5260 *Richard Levitte* 5261 5262 * Revert blinding in ECDSA sign and instead make problematic addition 5263 length-invariant. Switch even to fixed-length Montgomery multiplication. 5264 5265 *Andy Polyakov* 5266 5267 * Change generating and checking of primes so that the error rate of not 5268 being prime depends on the intended use based on the size of the input. 5269 For larger primes this will result in more rounds of Miller-Rabin. 5270 The maximal error rate for primes with more than 1080 bits is lowered 5271 to 2^-128. 5272 5273 *Kurt Roeckx, Annie Yousar* 5274 5275 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5276 5277 *Kurt Roeckx* 5278 5279 * Add blinding to ECDSA and DSA signatures to protect against side channel 5280 attacks discovered by Keegan Ryan (NCC Group). 5281 5282 *Matt Caswell* 5283 5284 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5285 now allow empty (zero character) pass phrases. 5286 5287 *Richard Levitte* 5288 5289 * Certificate time validation (X509_cmp_time) enforces stricter 5290 compliance with RFC 5280. Fractional seconds and timezone offsets 5291 are no longer allowed. 5292 5293 *Emilia Käsper* 5294 5295### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5296 5297 * Constructed ASN.1 types with a recursive definition could exceed the stack 5298 5299 Constructed ASN.1 types with a recursive definition (such as can be found 5300 in PKCS7) could eventually exceed the stack given malicious input with 5301 excessive recursion. This could result in a Denial Of Service attack. There 5302 are no such structures used within SSL/TLS that come from untrusted sources 5303 so this is considered safe. 5304 5305 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5306 project. 5307 ([CVE-2018-0739]) 5308 5309 *Matt Caswell* 5310 5311### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5312 5313 * Read/write after SSL object in error state 5314 5315 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5316 mechanism. The intent was that if a fatal error occurred during a handshake 5317 then OpenSSL would move into the error state and would immediately fail if 5318 you attempted to continue the handshake. This works as designed for the 5319 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5320 SSL_connect()), however due to a bug it does not work correctly if 5321 SSL_read() or SSL_write() is called directly. In that scenario, if the 5322 handshake fails then a fatal error will be returned in the initial function 5323 call. If SSL_read()/SSL_write() is subsequently called by the application 5324 for the same SSL object then it will succeed and the data is passed without 5325 being decrypted/encrypted directly from the SSL/TLS record layer. 5326 5327 In order to exploit this issue an application bug would have to be present 5328 that resulted in a call to SSL_read()/SSL_write() being issued after having 5329 already received a fatal error. 5330 5331 This issue was reported to OpenSSL by David Benjamin (Google). 5332 ([CVE-2017-3737]) 5333 5334 *Matt Caswell* 5335 5336 * rsaz_1024_mul_avx2 overflow bug on x86_64 5337 5338 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5339 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5340 Analysis suggests that attacks against RSA and DSA as a result of this 5341 defect would be very difficult to perform and are not believed likely. 5342 Attacks against DH1024 are considered just feasible, because most of the 5343 work necessary to deduce information about a private key may be performed 5344 offline. The amount of resources required for such an attack would be 5345 significant. However, for an attack on TLS to be meaningful, the server 5346 would have to share the DH1024 private key among multiple clients, which is 5347 no longer an option since CVE-2016-0701. 5348 5349 This only affects processors that support the AVX2 but not ADX extensions 5350 like Intel Haswell (4th generation). 5351 5352 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5353 was originally found via the OSS-Fuzz project. 5354 ([CVE-2017-3738]) 5355 5356 *Andy Polyakov* 5357 5358### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5359 5360 * bn_sqrx8x_internal carry bug on x86_64 5361 5362 There is a carry propagating bug in the x86_64 Montgomery squaring 5363 procedure. No EC algorithms are affected. Analysis suggests that attacks 5364 against RSA and DSA as a result of this defect would be very difficult to 5365 perform and are not believed likely. Attacks against DH are considered just 5366 feasible (although very difficult) because most of the work necessary to 5367 deduce information about a private key may be performed offline. The amount 5368 of resources required for such an attack would be very significant and 5369 likely only accessible to a limited number of attackers. An attacker would 5370 additionally need online access to an unpatched system using the target 5371 private key in a scenario with persistent DH parameters and a private 5372 key that is shared between multiple clients. 5373 5374 This only affects processors that support the BMI1, BMI2 and ADX extensions 5375 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5376 5377 This issue was reported to OpenSSL by the OSS-Fuzz project. 5378 ([CVE-2017-3736]) 5379 5380 *Andy Polyakov* 5381 5382 * Malformed X.509 IPAddressFamily could cause OOB read 5383 5384 If an X.509 certificate has a malformed IPAddressFamily extension, 5385 OpenSSL could do a one-byte buffer overread. The most likely result 5386 would be an erroneous display of the certificate in text format. 5387 5388 This issue was reported to OpenSSL by the OSS-Fuzz project. 5389 5390 *Rich Salz* 5391 5392### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5393 5394 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5395 platform rather than 'mingw'. 5396 5397 *Richard Levitte* 5398 5399### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5400 5401 * Truncated packet could crash via OOB read 5402 5403 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5404 cipher is being used, then a truncated packet can cause that host to 5405 perform an out-of-bounds read, usually resulting in a crash. 5406 5407 This issue was reported to OpenSSL by Robert Święcki of Google. 5408 ([CVE-2017-3731]) 5409 5410 *Andy Polyakov* 5411 5412 * BN_mod_exp may produce incorrect results on x86_64 5413 5414 There is a carry propagating bug in the x86_64 Montgomery squaring 5415 procedure. No EC algorithms are affected. Analysis suggests that attacks 5416 against RSA and DSA as a result of this defect would be very difficult to 5417 perform and are not believed likely. Attacks against DH are considered just 5418 feasible (although very difficult) because most of the work necessary to 5419 deduce information about a private key may be performed offline. The amount 5420 of resources required for such an attack would be very significant and 5421 likely only accessible to a limited number of attackers. An attacker would 5422 additionally need online access to an unpatched system using the target 5423 private key in a scenario with persistent DH parameters and a private 5424 key that is shared between multiple clients. For example this can occur by 5425 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5426 similar to CVE-2015-3193 but must be treated as a separate problem. 5427 5428 This issue was reported to OpenSSL by the OSS-Fuzz project. 5429 ([CVE-2017-3732]) 5430 5431 *Andy Polyakov* 5432 5433 * Montgomery multiplication may produce incorrect results 5434 5435 There is a carry propagating bug in the Broadwell-specific Montgomery 5436 multiplication procedure that handles input lengths divisible by, but 5437 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5438 and DH private keys are impossible. This is because the subroutine in 5439 question is not used in operations with the private key itself and an input 5440 of the attacker's direct choice. Otherwise the bug can manifest itself as 5441 transient authentication and key negotiation failures or reproducible 5442 erroneous outcome of public-key operations with specially crafted input. 5443 Among EC algorithms only Brainpool P-512 curves are affected and one 5444 presumably can attack ECDH key negotiation. Impact was not analyzed in 5445 detail, because pre-requisites for attack are considered unlikely. Namely 5446 multiple clients have to choose the curve in question and the server has to 5447 share the private key among them, neither of which is default behaviour. 5448 Even then only clients that chose the curve will be affected. 5449 5450 This issue was publicly reported as transient failures and was not 5451 initially recognized as a security issue. Thanks to Richard Morgan for 5452 providing reproducible case. 5453 ([CVE-2016-7055]) 5454 5455 *Andy Polyakov* 5456 5457 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5458 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5459 prevent issues where no progress is being made and the peer continually 5460 sends unrecognised record types, using up resources processing them. 5461 5462 *Matt Caswell* 5463 5464### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5465 5466 * Missing CRL sanity check 5467 5468 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5469 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5470 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5471 5472 This issue only affects the OpenSSL 1.0.2i 5473 ([CVE-2016-7052]) 5474 5475 *Matt Caswell* 5476 5477### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5478 5479 * OCSP Status Request extension unbounded memory growth 5480 5481 A malicious client can send an excessively large OCSP Status Request 5482 extension. If that client continually requests renegotiation, sending a 5483 large OCSP Status Request extension each time, then there will be unbounded 5484 memory growth on the server. This will eventually lead to a Denial Of 5485 Service attack through memory exhaustion. Servers with a default 5486 configuration are vulnerable even if they do not support OCSP. Builds using 5487 the "no-ocsp" build time option are not affected. 5488 5489 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5490 ([CVE-2016-6304]) 5491 5492 *Matt Caswell* 5493 5494 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5495 HIGH to MEDIUM. 5496 5497 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5498 Leurent (INRIA) 5499 ([CVE-2016-2183]) 5500 5501 *Rich Salz* 5502 5503 * OOB write in MDC2_Update() 5504 5505 An overflow can occur in MDC2_Update() either if called directly or 5506 through the EVP_DigestUpdate() function using MDC2. If an attacker 5507 is able to supply very large amounts of input data after a previous 5508 call to EVP_EncryptUpdate() with a partial block then a length check 5509 can overflow resulting in a heap corruption. 5510 5511 The amount of data needed is comparable to SIZE_MAX which is impractical 5512 on most platforms. 5513 5514 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5515 ([CVE-2016-6303]) 5516 5517 *Stephen Henson* 5518 5519 * Malformed SHA512 ticket DoS 5520 5521 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5522 DoS attack where a malformed ticket will result in an OOB read which will 5523 ultimately crash. 5524 5525 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5526 a custom server callback and ticket lookup mechanism. 5527 5528 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5529 ([CVE-2016-6302]) 5530 5531 *Stephen Henson* 5532 5533 * OOB write in BN_bn2dec() 5534 5535 The function BN_bn2dec() does not check the return value of BN_div_word(). 5536 This can cause an OOB write if an application uses this function with an 5537 overly large BIGNUM. This could be a problem if an overly large certificate 5538 or CRL is printed out from an untrusted source. TLS is not affected because 5539 record limits will reject an oversized certificate before it is parsed. 5540 5541 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5542 ([CVE-2016-2182]) 5543 5544 *Stephen Henson* 5545 5546 * OOB read in TS_OBJ_print_bio() 5547 5548 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5549 the total length the OID text representation would use and not the amount 5550 of data written. This will result in OOB reads when large OIDs are 5551 presented. 5552 5553 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5554 ([CVE-2016-2180]) 5555 5556 *Stephen Henson* 5557 5558 * Pointer arithmetic undefined behaviour 5559 5560 Avoid some undefined pointer arithmetic 5561 5562 A common idiom in the codebase is to check limits in the following manner: 5563 "p + len > limit" 5564 5565 Where "p" points to some malloc'd data of SIZE bytes and 5566 limit == p + SIZE 5567 5568 "len" here could be from some externally supplied data (e.g. from a TLS 5569 message). 5570 5571 The rules of C pointer arithmetic are such that "p + len" is only well 5572 defined where len <= SIZE. Therefore the above idiom is actually 5573 undefined behaviour. 5574 5575 For example this could cause problems if some malloc implementation 5576 provides an address for "p" such that "p + len" actually overflows for 5577 values of len that are too big and therefore p + len < limit. 5578 5579 This issue was reported to OpenSSL by Guido Vranken 5580 ([CVE-2016-2177]) 5581 5582 *Matt Caswell* 5583 5584 * Constant time flag not preserved in DSA signing 5585 5586 Operations in the DSA signing algorithm should run in constant time in 5587 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5588 implementation means that a non-constant time codepath is followed for 5589 certain operations. This has been demonstrated through a cache-timing 5590 attack to be sufficient for an attacker to recover the private DSA key. 5591 5592 This issue was reported by César Pereida (Aalto University), Billy Brumley 5593 (Tampere University of Technology), and Yuval Yarom (The University of 5594 Adelaide and NICTA). 5595 ([CVE-2016-2178]) 5596 5597 *César Pereida* 5598 5599 * DTLS buffered message DoS 5600 5601 In a DTLS connection where handshake messages are delivered out-of-order 5602 those messages that OpenSSL is not yet ready to process will be buffered 5603 for later use. Under certain circumstances, a flaw in the logic means that 5604 those messages do not get removed from the buffer even though the handshake 5605 has been completed. An attacker could force up to approx. 15 messages to 5606 remain in the buffer when they are no longer required. These messages will 5607 be cleared when the DTLS connection is closed. The default maximum size for 5608 a message is 100k. Therefore the attacker could force an additional 1500k 5609 to be consumed per connection. By opening many simulataneous connections an 5610 attacker could cause a DoS attack through memory exhaustion. 5611 5612 This issue was reported to OpenSSL by Quan Luo. 5613 ([CVE-2016-2179]) 5614 5615 *Matt Caswell* 5616 5617 * DTLS replay protection DoS 5618 5619 A flaw in the DTLS replay attack protection mechanism means that records 5620 that arrive for future epochs update the replay protection "window" before 5621 the MAC for the record has been validated. This could be exploited by an 5622 attacker by sending a record for the next epoch (which does not have to 5623 decrypt or have a valid MAC), with a very large sequence number. This means 5624 that all subsequent legitimate packets are dropped causing a denial of 5625 service for a specific DTLS connection. 5626 5627 This issue was reported to OpenSSL by the OCAP audit team. 5628 ([CVE-2016-2181]) 5629 5630 *Matt Caswell* 5631 5632 * Certificate message OOB reads 5633 5634 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5635 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5636 theoretical DoS risk but this has not been observed in practice on common 5637 platforms. 5638 5639 The messages affected are client certificate, client certificate request 5640 and server certificate. As a result the attack can only be performed 5641 against a client or a server which enables client authentication. 5642 5643 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5644 ([CVE-2016-6306]) 5645 5646 *Stephen Henson* 5647 5648### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5649 5650 * Prevent padding oracle in AES-NI CBC MAC check 5651 5652 A MITM attacker can use a padding oracle attack to decrypt traffic 5653 when the connection uses an AES CBC cipher and the server support 5654 AES-NI. 5655 5656 This issue was introduced as part of the fix for Lucky 13 padding 5657 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5658 constant time by making sure that always the same bytes are read and 5659 compared against either the MAC or padding bytes. But it no longer 5660 checked that there was enough data to have both the MAC and padding 5661 bytes. 5662 5663 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5664 5665 *Kurt Roeckx* 5666 5667 * Fix EVP_EncodeUpdate overflow 5668 5669 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5670 Base64 encoding of binary data. If an attacker is able to supply very large 5671 amounts of input data then a length check can overflow resulting in a heap 5672 corruption. 5673 5674 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5675 the `PEM_write_bio*` family of functions. These are mainly used within the 5676 OpenSSL command line applications, so any application which processes data 5677 from an untrusted source and outputs it as a PEM file should be considered 5678 vulnerable to this issue. User applications that call these APIs directly 5679 with large amounts of untrusted data may also be vulnerable. 5680 5681 This issue was reported by Guido Vranken. 5682 ([CVE-2016-2105]) 5683 5684 *Matt Caswell* 5685 5686 * Fix EVP_EncryptUpdate overflow 5687 5688 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5689 is able to supply very large amounts of input data after a previous call to 5690 EVP_EncryptUpdate() with a partial block then a length check can overflow 5691 resulting in a heap corruption. Following an analysis of all OpenSSL 5692 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5693 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5694 the first called function after an EVP_EncryptInit(), and therefore that 5695 specific call must be safe. The second form is where the length passed to 5696 EVP_EncryptUpdate() can be seen from the code to be some small value and 5697 therefore there is no possibility of an overflow. Since all instances are 5698 one of these two forms, it is believed that there can be no overflows in 5699 internal code due to this problem. It should be noted that 5700 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5701 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5702 of these calls have also been analysed too and it is believed there are no 5703 instances in internal usage where an overflow could occur. 5704 5705 This issue was reported by Guido Vranken. 5706 ([CVE-2016-2106]) 5707 5708 *Matt Caswell* 5709 5710 * Prevent ASN.1 BIO excessive memory allocation 5711 5712 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5713 a short invalid encoding can cause allocation of large amounts of memory 5714 potentially consuming excessive resources or exhausting memory. 5715 5716 Any application parsing untrusted data through d2i BIO functions is 5717 affected. The memory based functions such as d2i_X509() are *not* affected. 5718 Since the memory based functions are used by the TLS library, TLS 5719 applications are not affected. 5720 5721 This issue was reported by Brian Carpenter. 5722 ([CVE-2016-2109]) 5723 5724 *Stephen Henson* 5725 5726 * EBCDIC overread 5727 5728 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5729 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5730 in arbitrary stack data being returned in the buffer. 5731 5732 This issue was reported by Guido Vranken. 5733 ([CVE-2016-2176]) 5734 5735 *Matt Caswell* 5736 5737 * Modify behavior of ALPN to invoke callback after SNI/servername 5738 callback, such that updates to the SSL_CTX affect ALPN. 5739 5740 *Todd Short* 5741 5742 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5743 default. 5744 5745 *Kurt Roeckx* 5746 5747 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5748 methods are enabled and ssl2 is disabled the methods return NULL. 5749 5750 *Kurt Roeckx* 5751 5752### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5753 5754* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 5755 Builds that are not configured with "enable-weak-ssl-ciphers" will not 5756 provide any "EXPORT" or "LOW" strength ciphers. 5757 5758 *Viktor Dukhovni* 5759 5760* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 5761 is by default disabled at build-time. Builds that are not configured with 5762 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 5763 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 5764 will need to explicitly call either of: 5765 5766 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 5767 or 5768 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 5769 5770 as appropriate. Even if either of those is used, or the application 5771 explicitly uses the version-specific SSLv2_method() or its client and 5772 server variants, SSLv2 ciphers vulnerable to exhaustive search key 5773 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 5774 ciphers, and SSLv2 56-bit DES are no longer available. 5775 ([CVE-2016-0800]) 5776 5777 *Viktor Dukhovni* 5778 5779 * Fix a double-free in DSA code 5780 5781 A double free bug was discovered when OpenSSL parses malformed DSA private 5782 keys and could lead to a DoS attack or memory corruption for applications 5783 that receive DSA private keys from untrusted sources. This scenario is 5784 considered rare. 5785 5786 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 5787 libFuzzer. 5788 ([CVE-2016-0705]) 5789 5790 *Stephen Henson* 5791 5792 * Disable SRP fake user seed to address a server memory leak. 5793 5794 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 5795 5796 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 5797 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 5798 was changed to ignore the "fake user" SRP seed, even if the seed 5799 is configured. 5800 5801 Users should use SRP_VBASE_get1_by_user instead. Note that in 5802 SRP_VBASE_get1_by_user, caller must free the returned value. Note 5803 also that even though configuring the SRP seed attempts to hide 5804 invalid usernames by continuing the handshake with fake 5805 credentials, this behaviour is not constant time and no strong 5806 guarantees are made that the handshake is indistinguishable from 5807 that of a valid user. 5808 ([CVE-2016-0798]) 5809 5810 *Emilia Käsper* 5811 5812 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 5813 5814 In the BN_hex2bn function the number of hex digits is calculated using an 5815 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 5816 large values of `i` this can result in `bn_expand` not allocating any 5817 memory because `i * 4` is negative. This can leave the internal BIGNUM data 5818 field as NULL leading to a subsequent NULL ptr deref. For very large values 5819 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 5820 In this case memory is allocated to the internal BIGNUM data field, but it 5821 is insufficiently sized leading to heap corruption. A similar issue exists 5822 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 5823 is ever called by user applications with very large untrusted hex/dec data. 5824 This is anticipated to be a rare occurrence. 5825 5826 All OpenSSL internal usage of these functions use data that is not expected 5827 to be untrusted, e.g. config file data or application command line 5828 arguments. If user developed applications generate config file data based 5829 on untrusted data then it is possible that this could also lead to security 5830 consequences. This is also anticipated to be rare. 5831 5832 This issue was reported to OpenSSL by Guido Vranken. 5833 ([CVE-2016-0797]) 5834 5835 *Matt Caswell* 5836 5837 * Fix memory issues in `BIO_*printf` functions 5838 5839 The internal `fmtstr` function used in processing a "%s" format string in 5840 the `BIO_*printf` functions could overflow while calculating the length of a 5841 string and cause an OOB read when printing very long strings. 5842 5843 Additionally the internal `doapr_outch` function can attempt to write to an 5844 OOB memory location (at an offset from the NULL pointer) in the event of a 5845 memory allocation failure. In 1.0.2 and below this could be caused where 5846 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 5847 could be in processing a very long "%s" format string. Memory leaks can 5848 also occur. 5849 5850 The first issue may mask the second issue dependent on compiler behaviour. 5851 These problems could enable attacks where large amounts of untrusted data 5852 is passed to the `BIO_*printf` functions. If applications use these functions 5853 in this way then they could be vulnerable. OpenSSL itself uses these 5854 functions when printing out human-readable dumps of ASN.1 data. Therefore 5855 applications that print this data could be vulnerable if the data is from 5856 untrusted sources. OpenSSL command line applications could also be 5857 vulnerable where they print out ASN.1 data, or if untrusted data is passed 5858 as command line arguments. 5859 5860 Libssl is not considered directly vulnerable. Additionally certificates etc 5861 received via remote connections via libssl are also unlikely to be able to 5862 trigger these issues because of message size limits enforced within libssl. 5863 5864 This issue was reported to OpenSSL Guido Vranken. 5865 ([CVE-2016-0799]) 5866 5867 *Matt Caswell* 5868 5869 * Side channel attack on modular exponentiation 5870 5871 A side-channel attack was found which makes use of cache-bank conflicts on 5872 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 5873 of RSA keys. The ability to exploit this issue is limited as it relies on 5874 an attacker who has control of code in a thread running on the same 5875 hyper-threaded core as the victim thread which is performing decryptions. 5876 5877 This issue was reported to OpenSSL by Yuval Yarom, The University of 5878 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 5879 Nadia Heninger, University of Pennsylvania with more information at 5880 <http://cachebleed.info>. 5881 ([CVE-2016-0702]) 5882 5883 *Andy Polyakov* 5884 5885 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 5886 if no keysize is specified with default_bits. This fixes an 5887 omission in an earlier change that changed all RSA/DSA key generation 5888 commands to use 2048 bits by default. 5889 5890 *Emilia Käsper* 5891 5892### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 5893 5894 * DH small subgroups 5895 5896 Historically OpenSSL only ever generated DH parameters based on "safe" 5897 primes. More recently (in version 1.0.2) support was provided for 5898 generating X9.42 style parameter files such as those required for RFC 5114 5899 support. The primes used in such files may not be "safe". Where an 5900 application is using DH configured with parameters based on primes that are 5901 not "safe" then an attacker could use this fact to find a peer's private 5902 DH exponent. This attack requires that the attacker complete multiple 5903 handshakes in which the peer uses the same private DH exponent. For example 5904 this could be used to discover a TLS server's private DH exponent if it's 5905 reusing the private DH exponent or it's using a static DH ciphersuite. 5906 5907 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 5908 TLS. It is not on by default. If the option is not set then the server 5909 reuses the same private DH exponent for the life of the server process and 5910 would be vulnerable to this attack. It is believed that many popular 5911 applications do set this option and would therefore not be at risk. 5912 5913 The fix for this issue adds an additional check where a "q" parameter is 5914 available (as is the case in X9.42 based parameters). This detects the 5915 only known attack, and is the only possible defense for static DH 5916 ciphersuites. This could have some performance impact. 5917 5918 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 5919 default and cannot be disabled. This could have some performance impact. 5920 5921 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 5922 ([CVE-2016-0701]) 5923 5924 *Matt Caswell* 5925 5926 * SSLv2 doesn't block disabled ciphers 5927 5928 A malicious client can negotiate SSLv2 ciphers that have been disabled on 5929 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 5930 been disabled, provided that the SSLv2 protocol was not also disabled via 5931 SSL_OP_NO_SSLv2. 5932 5933 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 5934 and Sebastian Schinzel. 5935 ([CVE-2015-3197]) 5936 5937 *Viktor Dukhovni* 5938 5939### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 5940 5941 * BN_mod_exp may produce incorrect results on x86_64 5942 5943 There is a carry propagating bug in the x86_64 Montgomery squaring 5944 procedure. No EC algorithms are affected. Analysis suggests that attacks 5945 against RSA and DSA as a result of this defect would be very difficult to 5946 perform and are not believed likely. Attacks against DH are considered just 5947 feasible (although very difficult) because most of the work necessary to 5948 deduce information about a private key may be performed offline. The amount 5949 of resources required for such an attack would be very significant and 5950 likely only accessible to a limited number of attackers. An attacker would 5951 additionally need online access to an unpatched system using the target 5952 private key in a scenario with persistent DH parameters and a private 5953 key that is shared between multiple clients. For example this can occur by 5954 default in OpenSSL DHE based SSL/TLS ciphersuites. 5955 5956 This issue was reported to OpenSSL by Hanno Böck. 5957 ([CVE-2015-3193]) 5958 5959 *Andy Polyakov* 5960 5961 * Certificate verify crash with missing PSS parameter 5962 5963 The signature verification routines will crash with a NULL pointer 5964 dereference if presented with an ASN.1 signature using the RSA PSS 5965 algorithm and absent mask generation function parameter. Since these 5966 routines are used to verify certificate signature algorithms this can be 5967 used to crash any certificate verification operation and exploited in a 5968 DoS attack. Any application which performs certificate verification is 5969 vulnerable including OpenSSL clients and servers which enable client 5970 authentication. 5971 5972 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 5973 ([CVE-2015-3194]) 5974 5975 *Stephen Henson* 5976 5977 * X509_ATTRIBUTE memory leak 5978 5979 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 5980 memory. This structure is used by the PKCS#7 and CMS routines so any 5981 application which reads PKCS#7 or CMS data from untrusted sources is 5982 affected. SSL/TLS is not affected. 5983 5984 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 5985 libFuzzer. 5986 ([CVE-2015-3195]) 5987 5988 *Stephen Henson* 5989 5990 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 5991 This changes the decoding behaviour for some invalid messages, 5992 though the change is mostly in the more lenient direction, and 5993 legacy behaviour is preserved as much as possible. 5994 5995 *Emilia Käsper* 5996 5997 * In DSA_generate_parameters_ex, if the provided seed is too short, 5998 return an error 5999 6000 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 6001 6002### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6003 6004 * Alternate chains certificate forgery 6005 6006 During certificate verification, OpenSSL will attempt to find an 6007 alternative certificate chain if the first attempt to build such a chain 6008 fails. An error in the implementation of this logic can mean that an 6009 attacker could cause certain checks on untrusted certificates to be 6010 bypassed, such as the CA flag, enabling them to use a valid leaf 6011 certificate to act as a CA and "issue" an invalid certificate. 6012 6013 This issue was reported to OpenSSL by Adam Langley/David Benjamin 6014 (Google/BoringSSL). 6015 6016 *Matt Caswell* 6017 6018### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 6019 6020 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 6021 incompatibility in the handling of HMAC. The previous ABI has now been 6022 restored. 6023 6024 *Matt Caswell* 6025 6026### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 6027 6028 * Malformed ECParameters causes infinite loop 6029 6030 When processing an ECParameters structure OpenSSL enters an infinite loop 6031 if the curve specified is over a specially malformed binary polynomial 6032 field. 6033 6034 This can be used to perform denial of service against any 6035 system which processes public keys, certificate requests or 6036 certificates. This includes TLS clients and TLS servers with 6037 client authentication enabled. 6038 6039 This issue was reported to OpenSSL by Joseph Barr-Pixton. 6040 ([CVE-2015-1788]) 6041 6042 *Andy Polyakov* 6043 6044 * Exploitable out-of-bounds read in X509_cmp_time 6045 6046 X509_cmp_time does not properly check the length of the ASN1_TIME 6047 string and can read a few bytes out of bounds. In addition, 6048 X509_cmp_time accepts an arbitrary number of fractional seconds in the 6049 time string. 6050 6051 An attacker can use this to craft malformed certificates and CRLs of 6052 various sizes and potentially cause a segmentation fault, resulting in 6053 a DoS on applications that verify certificates or CRLs. TLS clients 6054 that verify CRLs are affected. TLS clients and servers with client 6055 authentication enabled may be affected if they use custom verification 6056 callbacks. 6057 6058 This issue was reported to OpenSSL by Robert Swiecki (Google), and 6059 independently by Hanno Böck. 6060 ([CVE-2015-1789]) 6061 6062 *Emilia Käsper* 6063 6064 * PKCS7 crash with missing EnvelopedContent 6065 6066 The PKCS#7 parsing code does not handle missing inner EncryptedContent 6067 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 6068 with missing content and trigger a NULL pointer dereference on parsing. 6069 6070 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 6071 structures from untrusted sources are affected. OpenSSL clients and 6072 servers are not affected. 6073 6074 This issue was reported to OpenSSL by Michal Zalewski (Google). 6075 ([CVE-2015-1790]) 6076 6077 *Emilia Käsper* 6078 6079 * CMS verify infinite loop with unknown hash function 6080 6081 When verifying a signedData message the CMS code can enter an infinite loop 6082 if presented with an unknown hash function OID. This can be used to perform 6083 denial of service against any system which verifies signedData messages using 6084 the CMS code. 6085 This issue was reported to OpenSSL by Johannes Bauer. 6086 ([CVE-2015-1792]) 6087 6088 *Stephen Henson* 6089 6090 * Race condition handling NewSessionTicket 6091 6092 If a NewSessionTicket is received by a multi-threaded client when attempting to 6093 reuse a previous ticket then a race condition can occur potentially leading to 6094 a double free of the ticket data. 6095 ([CVE-2015-1791]) 6096 6097 *Matt Caswell* 6098 6099 * Only support 256-bit or stronger elliptic curves with the 6100 'ecdh_auto' setting (server) or by default (client). Of supported 6101 curves, prefer P-256 (both). 6102 6103 *Emilia Kasper* 6104 6105### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 6106 6107 * ClientHello sigalgs DoS fix 6108 6109 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 6110 invalid signature algorithms extension a NULL pointer dereference will 6111 occur. This can be exploited in a DoS attack against the server. 6112 6113 This issue was was reported to OpenSSL by David Ramos of Stanford 6114 University. 6115 ([CVE-2015-0291]) 6116 6117 *Stephen Henson and Matt Caswell* 6118 6119 * Multiblock corrupted pointer fix 6120 6121 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 6122 feature only applies on 64 bit x86 architecture platforms that support AES 6123 NI instructions. A defect in the implementation of "multiblock" can cause 6124 OpenSSL's internal write buffer to become incorrectly set to NULL when 6125 using non-blocking IO. Typically, when the user application is using a 6126 socket BIO for writing, this will only result in a failed connection. 6127 However if some other BIO is used then it is likely that a segmentation 6128 fault will be triggered, thus enabling a potential DoS attack. 6129 6130 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6131 ([CVE-2015-0290]) 6132 6133 *Matt Caswell* 6134 6135 * Segmentation fault in DTLSv1_listen fix 6136 6137 The DTLSv1_listen function is intended to be stateless and processes the 6138 initial ClientHello from many peers. It is common for user code to loop 6139 over the call to DTLSv1_listen until a valid ClientHello is received with 6140 an associated cookie. A defect in the implementation of DTLSv1_listen means 6141 that state is preserved in the SSL object from one invocation to the next 6142 that can lead to a segmentation fault. Errors processing the initial 6143 ClientHello can trigger this scenario. An example of such an error could be 6144 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6145 server. 6146 6147 This issue was reported to OpenSSL by Per Allansson. 6148 ([CVE-2015-0207]) 6149 6150 *Matt Caswell* 6151 6152 * Segmentation fault in ASN1_TYPE_cmp fix 6153 6154 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6155 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6156 certificate signature algorithm consistency this can be used to crash any 6157 certificate verification operation and exploited in a DoS attack. Any 6158 application which performs certificate verification is vulnerable including 6159 OpenSSL clients and servers which enable client authentication. 6160 ([CVE-2015-0286]) 6161 6162 *Stephen Henson* 6163 6164 * Segmentation fault for invalid PSS parameters fix 6165 6166 The signature verification routines will crash with a NULL pointer 6167 dereference if presented with an ASN.1 signature using the RSA PSS 6168 algorithm and invalid parameters. Since these routines are used to verify 6169 certificate signature algorithms this can be used to crash any 6170 certificate verification operation and exploited in a DoS attack. Any 6171 application which performs certificate verification is vulnerable including 6172 OpenSSL clients and servers which enable client authentication. 6173 6174 This issue was was reported to OpenSSL by Brian Carpenter. 6175 ([CVE-2015-0208]) 6176 6177 *Stephen Henson* 6178 6179 * ASN.1 structure reuse memory corruption fix 6180 6181 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6182 memory corruption via an invalid write. Such reuse is and has been 6183 strongly discouraged and is believed to be rare. 6184 6185 Applications that parse structures containing CHOICE or ANY DEFINED BY 6186 components may be affected. Certificate parsing (d2i_X509 and related 6187 functions) are however not affected. OpenSSL clients and servers are 6188 not affected. 6189 ([CVE-2015-0287]) 6190 6191 *Stephen Henson* 6192 6193 * PKCS7 NULL pointer dereferences fix 6194 6195 The PKCS#7 parsing code does not handle missing outer ContentInfo 6196 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6197 missing content and trigger a NULL pointer dereference on parsing. 6198 6199 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6200 otherwise parse PKCS#7 structures from untrusted sources are 6201 affected. OpenSSL clients and servers are not affected. 6202 6203 This issue was reported to OpenSSL by Michal Zalewski (Google). 6204 ([CVE-2015-0289]) 6205 6206 *Emilia Käsper* 6207 6208 * DoS via reachable assert in SSLv2 servers fix 6209 6210 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6211 servers that both support SSLv2 and enable export cipher suites by sending 6212 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6213 6214 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6215 (OpenSSL development team). 6216 ([CVE-2015-0293]) 6217 6218 *Emilia Käsper* 6219 6220 * Empty CKE with client auth and DHE fix 6221 6222 If client auth is used then a server can seg fault in the event of a DHE 6223 ciphersuite being selected and a zero length ClientKeyExchange message 6224 being sent by the client. This could be exploited in a DoS attack. 6225 ([CVE-2015-1787]) 6226 6227 *Matt Caswell* 6228 6229 * Handshake with unseeded PRNG fix 6230 6231 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6232 with an unseeded PRNG. The conditions are: 6233 - The client is on a platform where the PRNG has not been seeded 6234 automatically, and the user has not seeded manually 6235 - A protocol specific client method version has been used (i.e. not 6236 SSL_client_methodv23) 6237 - A ciphersuite is used that does not require additional random data from 6238 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6239 6240 If the handshake succeeds then the client random that has been used will 6241 have been generated from a PRNG with insufficient entropy and therefore the 6242 output may be predictable. 6243 6244 For example using the following command with an unseeded openssl will 6245 succeed on an unpatched platform: 6246 6247 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6248 ([CVE-2015-0285]) 6249 6250 *Matt Caswell* 6251 6252 * Use After Free following d2i_ECPrivatekey error fix 6253 6254 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6255 could cause a use after free condition. This, in turn, could cause a double 6256 free in several private key parsing functions (such as d2i_PrivateKey 6257 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6258 for applications that receive EC private keys from untrusted 6259 sources. This scenario is considered rare. 6260 6261 This issue was discovered by the BoringSSL project and fixed in their 6262 commit 517073cd4b. 6263 ([CVE-2015-0209]) 6264 6265 *Matt Caswell* 6266 6267 * X509_to_X509_REQ NULL pointer deref fix 6268 6269 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6270 the certificate key is invalid. This function is rarely used in practice. 6271 6272 This issue was discovered by Brian Carpenter. 6273 ([CVE-2015-0288]) 6274 6275 *Stephen Henson* 6276 6277 * Removed the export ciphers from the DEFAULT ciphers 6278 6279 *Kurt Roeckx* 6280 6281### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6282 6283 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6284 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6285 So far those who have to target multiple platforms would compromise 6286 and argue that binary targeting say ARMv5 would still execute on 6287 ARMv8. "Universal" build resolves this compromise by providing 6288 near-optimal performance even on newer platforms. 6289 6290 *Andy Polyakov* 6291 6292 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6293 (other platforms pending). 6294 6295 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6296 6297 * Add support for the SignedCertificateTimestampList certificate and 6298 OCSP response extensions from RFC6962. 6299 6300 *Rob Stradling* 6301 6302 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6303 for corner cases. (Certain input points at infinity could lead to 6304 bogus results, with non-infinity inputs mapped to infinity too.) 6305 6306 *Bodo Moeller* 6307 6308 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6309 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6310 common cases are optimized and there still is room for further 6311 improvements. Vector Permutation AES for Altivec is also added. 6312 6313 *Andy Polyakov* 6314 6315 * Add support for little-endian ppc64 Linux target. 6316 6317 *Marcelo Cerri (IBM)* 6318 6319 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6320 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6321 are optimized and there still is room for further improvements. 6322 Both 32- and 64-bit modes are supported. 6323 6324 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6325 6326 * Improved ARMv7 NEON support. 6327 6328 *Andy Polyakov* 6329 6330 * Support for SPARC Architecture 2011 crypto extensions, first 6331 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6332 SHA256/512, MD5, GHASH and modular exponentiation. 6333 6334 *Andy Polyakov, David Miller* 6335 6336 * Accelerated modular exponentiation for Intel processors, a.k.a. 6337 RSAZ. 6338 6339 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6340 6341 * Support for new and upcoming Intel processors, including AVX2, 6342 BMI and SHA ISA extensions. This includes additional "stitched" 6343 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6344 for TLS encrypt. 6345 6346 This work was sponsored by Intel Corp. 6347 6348 *Andy Polyakov* 6349 6350 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6351 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6352 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6353 6354 *Steve Henson* 6355 6356 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6357 this fixes a limitation in previous versions of OpenSSL. 6358 6359 *Steve Henson* 6360 6361 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6362 MGF1 digest and OAEP label. 6363 6364 *Steve Henson* 6365 6366 * Add EVP support for key wrapping algorithms, to avoid problems with 6367 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6368 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6369 algorithms and include tests cases. 6370 6371 *Steve Henson* 6372 6373 * Add functions to allocate and set the fields of an ECDSA_METHOD 6374 structure. 6375 6376 *Douglas E. Engert, Steve Henson* 6377 6378 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6379 difference in days and seconds between two tm or ASN1_TIME structures. 6380 6381 *Steve Henson* 6382 6383 * Add -rev test option to s_server to just reverse order of characters 6384 received by client and send back to server. Also prints an abbreviated 6385 summary of the connection parameters. 6386 6387 *Steve Henson* 6388 6389 * New option -brief for s_client and s_server to print out a brief summary 6390 of connection parameters. 6391 6392 *Steve Henson* 6393 6394 * Add callbacks for arbitrary TLS extensions. 6395 6396 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6397 6398 * New option -crl_download in several openssl utilities to download CRLs 6399 from CRLDP extension in certificates. 6400 6401 *Steve Henson* 6402 6403 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6404 6405 *Steve Henson* 6406 6407 * New function X509_CRL_diff to generate a delta CRL from the difference 6408 of two full CRLs. Add support to "crl" utility. 6409 6410 *Steve Henson* 6411 6412 * New functions to set lookup_crls function and to retrieve 6413 X509_STORE from X509_STORE_CTX. 6414 6415 *Steve Henson* 6416 6417 * Print out deprecated issuer and subject unique ID fields in 6418 certificates. 6419 6420 *Steve Henson* 6421 6422 * Extend OCSP I/O functions so they can be used for simple general purpose 6423 HTTP as well as OCSP. New wrapper function which can be used to download 6424 CRLs using the OCSP API. 6425 6426 *Steve Henson* 6427 6428 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6429 6430 *Steve Henson* 6431 6432 * `SSL_CONF*` functions. These provide a common framework for application 6433 configuration using configuration files or command lines. 6434 6435 *Steve Henson* 6436 6437 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6438 message callback and prints the results. Needs compile time option 6439 "enable-ssl-trace". New options to s_client and s_server to enable 6440 tracing. 6441 6442 *Steve Henson* 6443 6444 * New ctrl and macro to retrieve supported points extensions. 6445 Print out extension in s_server and s_client. 6446 6447 *Steve Henson* 6448 6449 * New functions to retrieve certificate signature and signature 6450 OID NID. 6451 6452 *Steve Henson* 6453 6454 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6455 client to OpenSSL. 6456 6457 *Steve Henson* 6458 6459 * New Suite B modes for TLS code. These use and enforce the requirements 6460 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6461 only use Suite B curves. The Suite B modes can be set by using the 6462 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6463 6464 *Steve Henson* 6465 6466 * New chain verification flags for Suite B levels of security. Check 6467 algorithms are acceptable when flags are set in X509_verify_cert. 6468 6469 *Steve Henson* 6470 6471 * Make tls1_check_chain return a set of flags indicating checks passed 6472 by a certificate chain. Add additional tests to handle client 6473 certificates: checks for matching certificate type and issuer name 6474 comparison. 6475 6476 *Steve Henson* 6477 6478 * If an attempt is made to use a signature algorithm not in the peer 6479 preference list abort the handshake. If client has no suitable 6480 signature algorithms in response to a certificate request do not 6481 use the certificate. 6482 6483 *Steve Henson* 6484 6485 * If server EC tmp key is not in client preference list abort handshake. 6486 6487 *Steve Henson* 6488 6489 * Add support for certificate stores in CERT structure. This makes it 6490 possible to have different stores per SSL structure or one store in 6491 the parent SSL_CTX. Include distinct stores for certificate chain 6492 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6493 to build and store a certificate chain in CERT structure: returning 6494 an error if the chain cannot be built: this will allow applications 6495 to test if a chain is correctly configured. 6496 6497 Note: if the CERT based stores are not set then the parent SSL_CTX 6498 store is used to retain compatibility with existing behaviour. 6499 6500 *Steve Henson* 6501 6502 * New function ssl_set_client_disabled to set a ciphersuite disabled 6503 mask based on the current session, check mask when sending client 6504 hello and checking the requested ciphersuite. 6505 6506 *Steve Henson* 6507 6508 * New ctrls to retrieve and set certificate types in a certificate 6509 request message. Print out received values in s_client. If certificate 6510 types is not set with custom values set sensible values based on 6511 supported signature algorithms. 6512 6513 *Steve Henson* 6514 6515 * Support for distinct client and server supported signature algorithms. 6516 6517 *Steve Henson* 6518 6519 * Add certificate callback. If set this is called whenever a certificate 6520 is required by client or server. An application can decide which 6521 certificate chain to present based on arbitrary criteria: for example 6522 supported signature algorithms. Add very simple example to s_server. 6523 This fixes many of the problems and restrictions of the existing client 6524 certificate callback: for example you can now clear an existing 6525 certificate and specify the whole chain. 6526 6527 *Steve Henson* 6528 6529 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6530 the certificate can be used for (if anything). Set valid_flags field 6531 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6532 to have similar checks in it. 6533 6534 Add new "cert_flags" field to CERT structure and include a "strict mode". 6535 This enforces some TLS certificate requirements (such as only permitting 6536 certificate signature algorithms contained in the supported algorithms 6537 extension) which some implementations ignore: this option should be used 6538 with caution as it could cause interoperability issues. 6539 6540 *Steve Henson* 6541 6542 * Update and tidy signature algorithm extension processing. Work out 6543 shared signature algorithms based on preferences and peer algorithms 6544 and print them out in s_client and s_server. Abort handshake if no 6545 shared signature algorithms. 6546 6547 *Steve Henson* 6548 6549 * Add new functions to allow customised supported signature algorithms 6550 for SSL and SSL_CTX structures. Add options to s_client and s_server 6551 to support them. 6552 6553 *Steve Henson* 6554 6555 * New function SSL_certs_clear() to delete all references to certificates 6556 from an SSL structure. Before this once a certificate had been added 6557 it couldn't be removed. 6558 6559 *Steve Henson* 6560 6561 * Integrate hostname, email address and IP address checking with certificate 6562 verification. New verify options supporting checking in openssl utility. 6563 6564 *Steve Henson* 6565 6566 * Fixes and wildcard matching support to hostname and email checking 6567 functions. Add manual page. 6568 6569 *Florian Weimer (Red Hat Product Security Team)* 6570 6571 * New functions to check a hostname email or IP address against a 6572 certificate. Add options x509 utility to print results of checks against 6573 a certificate. 6574 6575 *Steve Henson* 6576 6577 * Fix OCSP checking. 6578 6579 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6580 6581 * Initial experimental support for explicitly trusted non-root CAs. 6582 OpenSSL still tries to build a complete chain to a root but if an 6583 intermediate CA has a trust setting included that is used. The first 6584 setting is used: whether to trust (e.g., -addtrust option to the x509 6585 utility) or reject. 6586 6587 *Steve Henson* 6588 6589 * Add -trusted_first option which attempts to find certificates in the 6590 trusted store even if an untrusted chain is also supplied. 6591 6592 *Steve Henson* 6593 6594 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6595 platform support for Linux and Android. 6596 6597 *Andy Polyakov* 6598 6599 * Support for linux-x32, ILP32 environment in x86_64 framework. 6600 6601 *Andy Polyakov* 6602 6603 * Experimental multi-implementation support for FIPS capable OpenSSL. 6604 When in FIPS mode the approved implementations are used as normal, 6605 when not in FIPS mode the internal unapproved versions are used instead. 6606 This means that the FIPS capable OpenSSL isn't forced to use the 6607 (often lower performance) FIPS implementations outside FIPS mode. 6608 6609 *Steve Henson* 6610 6611 * Transparently support X9.42 DH parameters when calling 6612 PEM_read_bio_DHparameters. This means existing applications can handle 6613 the new parameter format automatically. 6614 6615 *Steve Henson* 6616 6617 * Initial experimental support for X9.42 DH parameter format: mainly 6618 to support use of 'q' parameter for RFC5114 parameters. 6619 6620 *Steve Henson* 6621 6622 * Add DH parameters from RFC5114 including test data to dhtest. 6623 6624 *Steve Henson* 6625 6626 * Support for automatic EC temporary key parameter selection. If enabled 6627 the most preferred EC parameters are automatically used instead of 6628 hardcoded fixed parameters. Now a server just has to call: 6629 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6630 support ECDH and use the most appropriate parameters. 6631 6632 *Steve Henson* 6633 6634 * Enhance and tidy EC curve and point format TLS extension code. Use 6635 static structures instead of allocation if default values are used. 6636 New ctrls to set curves we wish to support and to retrieve shared curves. 6637 Print out shared curves in s_server. New options to s_server and s_client 6638 to set list of supported curves. 6639 6640 *Steve Henson* 6641 6642 * New ctrls to retrieve supported signature algorithms and 6643 supported curve values as an array of NIDs. Extend openssl utility 6644 to print out received values. 6645 6646 *Steve Henson* 6647 6648 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6649 between NIDs and the more common NIST names such as "P-256". Enhance 6650 ecparam utility and ECC method to recognise the NIST names for curves. 6651 6652 *Steve Henson* 6653 6654 * Enhance SSL/TLS certificate chain handling to support different 6655 chains for each certificate instead of one chain in the parent SSL_CTX. 6656 6657 *Steve Henson* 6658 6659 * Support for fixed DH ciphersuite client authentication: where both 6660 server and client use DH certificates with common parameters. 6661 6662 *Steve Henson* 6663 6664 * Support for fixed DH ciphersuites: those requiring DH server 6665 certificates. 6666 6667 *Steve Henson* 6668 6669 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6670 the certificate. 6671 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6672 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6673 X509_CINF_get_signature were reverted post internal team review. 6674 6675OpenSSL 1.0.1 6676------------- 6677 6678### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6679 6680 * OCSP Status Request extension unbounded memory growth 6681 6682 A malicious client can send an excessively large OCSP Status Request 6683 extension. If that client continually requests renegotiation, sending a 6684 large OCSP Status Request extension each time, then there will be unbounded 6685 memory growth on the server. This will eventually lead to a Denial Of 6686 Service attack through memory exhaustion. Servers with a default 6687 configuration are vulnerable even if they do not support OCSP. Builds using 6688 the "no-ocsp" build time option are not affected. 6689 6690 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6691 ([CVE-2016-6304]) 6692 6693 *Matt Caswell* 6694 6695 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6696 HIGH to MEDIUM. 6697 6698 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6699 Leurent (INRIA) 6700 ([CVE-2016-2183]) 6701 6702 *Rich Salz* 6703 6704 * OOB write in MDC2_Update() 6705 6706 An overflow can occur in MDC2_Update() either if called directly or 6707 through the EVP_DigestUpdate() function using MDC2. If an attacker 6708 is able to supply very large amounts of input data after a previous 6709 call to EVP_EncryptUpdate() with a partial block then a length check 6710 can overflow resulting in a heap corruption. 6711 6712 The amount of data needed is comparable to SIZE_MAX which is impractical 6713 on most platforms. 6714 6715 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6716 ([CVE-2016-6303]) 6717 6718 *Stephen Henson* 6719 6720 * Malformed SHA512 ticket DoS 6721 6722 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6723 DoS attack where a malformed ticket will result in an OOB read which will 6724 ultimately crash. 6725 6726 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6727 a custom server callback and ticket lookup mechanism. 6728 6729 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6730 ([CVE-2016-6302]) 6731 6732 *Stephen Henson* 6733 6734 * OOB write in BN_bn2dec() 6735 6736 The function BN_bn2dec() does not check the return value of BN_div_word(). 6737 This can cause an OOB write if an application uses this function with an 6738 overly large BIGNUM. This could be a problem if an overly large certificate 6739 or CRL is printed out from an untrusted source. TLS is not affected because 6740 record limits will reject an oversized certificate before it is parsed. 6741 6742 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6743 ([CVE-2016-2182]) 6744 6745 *Stephen Henson* 6746 6747 * OOB read in TS_OBJ_print_bio() 6748 6749 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6750 the total length the OID text representation would use and not the amount 6751 of data written. This will result in OOB reads when large OIDs are 6752 presented. 6753 6754 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6755 ([CVE-2016-2180]) 6756 6757 *Stephen Henson* 6758 6759 * Pointer arithmetic undefined behaviour 6760 6761 Avoid some undefined pointer arithmetic 6762 6763 A common idiom in the codebase is to check limits in the following manner: 6764 "p + len > limit" 6765 6766 Where "p" points to some malloc'd data of SIZE bytes and 6767 limit == p + SIZE 6768 6769 "len" here could be from some externally supplied data (e.g. from a TLS 6770 message). 6771 6772 The rules of C pointer arithmetic are such that "p + len" is only well 6773 defined where len <= SIZE. Therefore the above idiom is actually 6774 undefined behaviour. 6775 6776 For example this could cause problems if some malloc implementation 6777 provides an address for "p" such that "p + len" actually overflows for 6778 values of len that are too big and therefore p + len < limit. 6779 6780 This issue was reported to OpenSSL by Guido Vranken 6781 ([CVE-2016-2177]) 6782 6783 *Matt Caswell* 6784 6785 * Constant time flag not preserved in DSA signing 6786 6787 Operations in the DSA signing algorithm should run in constant time in 6788 order to avoid side channel attacks. A flaw in the OpenSSL DSA 6789 implementation means that a non-constant time codepath is followed for 6790 certain operations. This has been demonstrated through a cache-timing 6791 attack to be sufficient for an attacker to recover the private DSA key. 6792 6793 This issue was reported by César Pereida (Aalto University), Billy Brumley 6794 (Tampere University of Technology), and Yuval Yarom (The University of 6795 Adelaide and NICTA). 6796 ([CVE-2016-2178]) 6797 6798 *César Pereida* 6799 6800 * DTLS buffered message DoS 6801 6802 In a DTLS connection where handshake messages are delivered out-of-order 6803 those messages that OpenSSL is not yet ready to process will be buffered 6804 for later use. Under certain circumstances, a flaw in the logic means that 6805 those messages do not get removed from the buffer even though the handshake 6806 has been completed. An attacker could force up to approx. 15 messages to 6807 remain in the buffer when they are no longer required. These messages will 6808 be cleared when the DTLS connection is closed. The default maximum size for 6809 a message is 100k. Therefore the attacker could force an additional 1500k 6810 to be consumed per connection. By opening many simulataneous connections an 6811 attacker could cause a DoS attack through memory exhaustion. 6812 6813 This issue was reported to OpenSSL by Quan Luo. 6814 ([CVE-2016-2179]) 6815 6816 *Matt Caswell* 6817 6818 * DTLS replay protection DoS 6819 6820 A flaw in the DTLS replay attack protection mechanism means that records 6821 that arrive for future epochs update the replay protection "window" before 6822 the MAC for the record has been validated. This could be exploited by an 6823 attacker by sending a record for the next epoch (which does not have to 6824 decrypt or have a valid MAC), with a very large sequence number. This means 6825 that all subsequent legitimate packets are dropped causing a denial of 6826 service for a specific DTLS connection. 6827 6828 This issue was reported to OpenSSL by the OCAP audit team. 6829 ([CVE-2016-2181]) 6830 6831 *Matt Caswell* 6832 6833 * Certificate message OOB reads 6834 6835 In OpenSSL 1.0.2 and earlier some missing message length checks can result 6836 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 6837 theoretical DoS risk but this has not been observed in practice on common 6838 platforms. 6839 6840 The messages affected are client certificate, client certificate request 6841 and server certificate. As a result the attack can only be performed 6842 against a client or a server which enables client authentication. 6843 6844 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6845 ([CVE-2016-6306]) 6846 6847 *Stephen Henson* 6848 6849### Changes between 1.0.1s and 1.0.1t [3 May 2016] 6850 6851 * Prevent padding oracle in AES-NI CBC MAC check 6852 6853 A MITM attacker can use a padding oracle attack to decrypt traffic 6854 when the connection uses an AES CBC cipher and the server support 6855 AES-NI. 6856 6857 This issue was introduced as part of the fix for Lucky 13 padding 6858 attack ([CVE-2013-0169]). The padding check was rewritten to be in 6859 constant time by making sure that always the same bytes are read and 6860 compared against either the MAC or padding bytes. But it no longer 6861 checked that there was enough data to have both the MAC and padding 6862 bytes. 6863 6864 This issue was reported by Juraj Somorovsky using TLS-Attacker. 6865 ([CVE-2016-2107]) 6866 6867 *Kurt Roeckx* 6868 6869 * Fix EVP_EncodeUpdate overflow 6870 6871 An overflow can occur in the EVP_EncodeUpdate() function which is used for 6872 Base64 encoding of binary data. If an attacker is able to supply very large 6873 amounts of input data then a length check can overflow resulting in a heap 6874 corruption. 6875 6876 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 6877 the `PEM_write_bio*` family of functions. These are mainly used within the 6878 OpenSSL command line applications, so any application which processes data 6879 from an untrusted source and outputs it as a PEM file should be considered 6880 vulnerable to this issue. User applications that call these APIs directly 6881 with large amounts of untrusted data may also be vulnerable. 6882 6883 This issue was reported by Guido Vranken. 6884 ([CVE-2016-2105]) 6885 6886 *Matt Caswell* 6887 6888 * Fix EVP_EncryptUpdate overflow 6889 6890 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 6891 is able to supply very large amounts of input data after a previous call to 6892 EVP_EncryptUpdate() with a partial block then a length check can overflow 6893 resulting in a heap corruption. Following an analysis of all OpenSSL 6894 internal usage of the EVP_EncryptUpdate() function all usage is one of two 6895 forms. The first form is where the EVP_EncryptUpdate() call is known to be 6896 the first called function after an EVP_EncryptInit(), and therefore that 6897 specific call must be safe. The second form is where the length passed to 6898 EVP_EncryptUpdate() can be seen from the code to be some small value and 6899 therefore there is no possibility of an overflow. Since all instances are 6900 one of these two forms, it is believed that there can be no overflows in 6901 internal code due to this problem. It should be noted that 6902 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 6903 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 6904 of these calls have also been analysed too and it is believed there are no 6905 instances in internal usage where an overflow could occur. 6906 6907 This issue was reported by Guido Vranken. 6908 ([CVE-2016-2106]) 6909 6910 *Matt Caswell* 6911 6912 * Prevent ASN.1 BIO excessive memory allocation 6913 6914 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 6915 a short invalid encoding can casuse allocation of large amounts of memory 6916 potentially consuming excessive resources or exhausting memory. 6917 6918 Any application parsing untrusted data through d2i BIO functions is 6919 affected. The memory based functions such as d2i_X509() are *not* affected. 6920 Since the memory based functions are used by the TLS library, TLS 6921 applications are not affected. 6922 6923 This issue was reported by Brian Carpenter. 6924 ([CVE-2016-2109]) 6925 6926 *Stephen Henson* 6927 6928 * EBCDIC overread 6929 6930 ASN1 Strings that are over 1024 bytes can cause an overread in applications 6931 using the X509_NAME_oneline() function on EBCDIC systems. This could result 6932 in arbitrary stack data being returned in the buffer. 6933 6934 This issue was reported by Guido Vranken. 6935 ([CVE-2016-2176]) 6936 6937 *Matt Caswell* 6938 6939 * Modify behavior of ALPN to invoke callback after SNI/servername 6940 callback, such that updates to the SSL_CTX affect ALPN. 6941 6942 *Todd Short* 6943 6944 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 6945 default. 6946 6947 *Kurt Roeckx* 6948 6949 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 6950 methods are enabled and ssl2 is disabled the methods return NULL. 6951 6952 *Kurt Roeckx* 6953 6954### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 6955 6956* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6957 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6958 provide any "EXPORT" or "LOW" strength ciphers. 6959 6960 *Viktor Dukhovni* 6961 6962* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6963 is by default disabled at build-time. Builds that are not configured with 6964 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6965 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6966 will need to explicitly call either of: 6967 6968 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 6969 or 6970 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 6971 6972 as appropriate. Even if either of those is used, or the application 6973 explicitly uses the version-specific SSLv2_method() or its client and 6974 server variants, SSLv2 ciphers vulnerable to exhaustive search key 6975 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 6976 ciphers, and SSLv2 56-bit DES are no longer available. 6977 ([CVE-2016-0800]) 6978 6979 *Viktor Dukhovni* 6980 6981 * Fix a double-free in DSA code 6982 6983 A double free bug was discovered when OpenSSL parses malformed DSA private 6984 keys and could lead to a DoS attack or memory corruption for applications 6985 that receive DSA private keys from untrusted sources. This scenario is 6986 considered rare. 6987 6988 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 6989 libFuzzer. 6990 ([CVE-2016-0705]) 6991 6992 *Stephen Henson* 6993 6994 * Disable SRP fake user seed to address a server memory leak. 6995 6996 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 6997 6998 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 6999 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7000 was changed to ignore the "fake user" SRP seed, even if the seed 7001 is configured. 7002 7003 Users should use SRP_VBASE_get1_by_user instead. Note that in 7004 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7005 also that even though configuring the SRP seed attempts to hide 7006 invalid usernames by continuing the handshake with fake 7007 credentials, this behaviour is not constant time and no strong 7008 guarantees are made that the handshake is indistinguishable from 7009 that of a valid user. 7010 ([CVE-2016-0798]) 7011 7012 *Emilia Käsper* 7013 7014 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7015 7016 In the BN_hex2bn function the number of hex digits is calculated using an 7017 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7018 large values of `i` this can result in `bn_expand` not allocating any 7019 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7020 field as NULL leading to a subsequent NULL ptr deref. For very large values 7021 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7022 In this case memory is allocated to the internal BIGNUM data field, but it 7023 is insufficiently sized leading to heap corruption. A similar issue exists 7024 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7025 is ever called by user applications with very large untrusted hex/dec data. 7026 This is anticipated to be a rare occurrence. 7027 7028 All OpenSSL internal usage of these functions use data that is not expected 7029 to be untrusted, e.g. config file data or application command line 7030 arguments. If user developed applications generate config file data based 7031 on untrusted data then it is possible that this could also lead to security 7032 consequences. This is also anticipated to be rare. 7033 7034 This issue was reported to OpenSSL by Guido Vranken. 7035 ([CVE-2016-0797]) 7036 7037 *Matt Caswell* 7038 7039 * Fix memory issues in `BIO_*printf` functions 7040 7041 The internal `fmtstr` function used in processing a "%s" format string in 7042 the `BIO_*printf` functions could overflow while calculating the length of a 7043 string and cause an OOB read when printing very long strings. 7044 7045 Additionally the internal `doapr_outch` function can attempt to write to an 7046 OOB memory location (at an offset from the NULL pointer) in the event of a 7047 memory allocation failure. In 1.0.2 and below this could be caused where 7048 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7049 could be in processing a very long "%s" format string. Memory leaks can 7050 also occur. 7051 7052 The first issue may mask the second issue dependent on compiler behaviour. 7053 These problems could enable attacks where large amounts of untrusted data 7054 is passed to the `BIO_*printf` functions. If applications use these functions 7055 in this way then they could be vulnerable. OpenSSL itself uses these 7056 functions when printing out human-readable dumps of ASN.1 data. Therefore 7057 applications that print this data could be vulnerable if the data is from 7058 untrusted sources. OpenSSL command line applications could also be 7059 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7060 as command line arguments. 7061 7062 Libssl is not considered directly vulnerable. Additionally certificates etc 7063 received via remote connections via libssl are also unlikely to be able to 7064 trigger these issues because of message size limits enforced within libssl. 7065 7066 This issue was reported to OpenSSL Guido Vranken. 7067 ([CVE-2016-0799]) 7068 7069 *Matt Caswell* 7070 7071 * Side channel attack on modular exponentiation 7072 7073 A side-channel attack was found which makes use of cache-bank conflicts on 7074 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7075 of RSA keys. The ability to exploit this issue is limited as it relies on 7076 an attacker who has control of code in a thread running on the same 7077 hyper-threaded core as the victim thread which is performing decryptions. 7078 7079 This issue was reported to OpenSSL by Yuval Yarom, The University of 7080 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7081 Nadia Heninger, University of Pennsylvania with more information at 7082 <http://cachebleed.info>. 7083 ([CVE-2016-0702]) 7084 7085 *Andy Polyakov* 7086 7087 * Change the req command to generate a 2048-bit RSA/DSA key by default, 7088 if no keysize is specified with default_bits. This fixes an 7089 omission in an earlier change that changed all RSA/DSA key generation 7090 commands to use 2048 bits by default. 7091 7092 *Emilia Käsper* 7093 7094### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 7095 7096 * Protection for DH small subgroup attacks 7097 7098 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 7099 switched on by default and cannot be disabled. This could have some 7100 performance impact. 7101 7102 *Matt Caswell* 7103 7104 * SSLv2 doesn't block disabled ciphers 7105 7106 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7107 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7108 been disabled, provided that the SSLv2 protocol was not also disabled via 7109 SSL_OP_NO_SSLv2. 7110 7111 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7112 and Sebastian Schinzel. 7113 ([CVE-2015-3197]) 7114 7115 *Viktor Dukhovni* 7116 7117 * Reject DH handshakes with parameters shorter than 1024 bits. 7118 7119 *Kurt Roeckx* 7120 7121### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 7122 7123 * Certificate verify crash with missing PSS parameter 7124 7125 The signature verification routines will crash with a NULL pointer 7126 dereference if presented with an ASN.1 signature using the RSA PSS 7127 algorithm and absent mask generation function parameter. Since these 7128 routines are used to verify certificate signature algorithms this can be 7129 used to crash any certificate verification operation and exploited in a 7130 DoS attack. Any application which performs certificate verification is 7131 vulnerable including OpenSSL clients and servers which enable client 7132 authentication. 7133 7134 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7135 ([CVE-2015-3194]) 7136 7137 *Stephen Henson* 7138 7139 * X509_ATTRIBUTE memory leak 7140 7141 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7142 memory. This structure is used by the PKCS#7 and CMS routines so any 7143 application which reads PKCS#7 or CMS data from untrusted sources is 7144 affected. SSL/TLS is not affected. 7145 7146 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7147 libFuzzer. 7148 ([CVE-2015-3195]) 7149 7150 *Stephen Henson* 7151 7152 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7153 This changes the decoding behaviour for some invalid messages, 7154 though the change is mostly in the more lenient direction, and 7155 legacy behaviour is preserved as much as possible. 7156 7157 *Emilia Käsper* 7158 7159 * In DSA_generate_parameters_ex, if the provided seed is too short, 7160 use a random seed, as already documented. 7161 7162 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7163 7164### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7165 7166 * Alternate chains certificate forgery 7167 7168 During certificate verfification, OpenSSL will attempt to find an 7169 alternative certificate chain if the first attempt to build such a chain 7170 fails. An error in the implementation of this logic can mean that an 7171 attacker could cause certain checks on untrusted certificates to be 7172 bypassed, such as the CA flag, enabling them to use a valid leaf 7173 certificate to act as a CA and "issue" an invalid certificate. 7174 7175 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7176 (Google/BoringSSL). 7177 ([CVE-2015-1793]) 7178 7179 *Matt Caswell* 7180 7181 * Race condition handling PSK identify hint 7182 7183 If PSK identity hints are received by a multi-threaded client then 7184 the values are wrongly updated in the parent SSL_CTX structure. This can 7185 result in a race condition potentially leading to a double free of the 7186 identify hint data. 7187 ([CVE-2015-3196]) 7188 7189 *Stephen Henson* 7190 7191### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7192 7193 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7194 incompatibility in the handling of HMAC. The previous ABI has now been 7195 restored. 7196 7197### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7198 7199 * Malformed ECParameters causes infinite loop 7200 7201 When processing an ECParameters structure OpenSSL enters an infinite loop 7202 if the curve specified is over a specially malformed binary polynomial 7203 field. 7204 7205 This can be used to perform denial of service against any 7206 system which processes public keys, certificate requests or 7207 certificates. This includes TLS clients and TLS servers with 7208 client authentication enabled. 7209 7210 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7211 ([CVE-2015-1788]) 7212 7213 *Andy Polyakov* 7214 7215 * Exploitable out-of-bounds read in X509_cmp_time 7216 7217 X509_cmp_time does not properly check the length of the ASN1_TIME 7218 string and can read a few bytes out of bounds. In addition, 7219 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7220 time string. 7221 7222 An attacker can use this to craft malformed certificates and CRLs of 7223 various sizes and potentially cause a segmentation fault, resulting in 7224 a DoS on applications that verify certificates or CRLs. TLS clients 7225 that verify CRLs are affected. TLS clients and servers with client 7226 authentication enabled may be affected if they use custom verification 7227 callbacks. 7228 7229 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7230 independently by Hanno Böck. 7231 ([CVE-2015-1789]) 7232 7233 *Emilia Käsper* 7234 7235 * PKCS7 crash with missing EnvelopedContent 7236 7237 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7238 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7239 with missing content and trigger a NULL pointer dereference on parsing. 7240 7241 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7242 structures from untrusted sources are affected. OpenSSL clients and 7243 servers are not affected. 7244 7245 This issue was reported to OpenSSL by Michal Zalewski (Google). 7246 ([CVE-2015-1790]) 7247 7248 *Emilia Käsper* 7249 7250 * CMS verify infinite loop with unknown hash function 7251 7252 When verifying a signedData message the CMS code can enter an infinite loop 7253 if presented with an unknown hash function OID. This can be used to perform 7254 denial of service against any system which verifies signedData messages using 7255 the CMS code. 7256 This issue was reported to OpenSSL by Johannes Bauer. 7257 ([CVE-2015-1792]) 7258 7259 *Stephen Henson* 7260 7261 * Race condition handling NewSessionTicket 7262 7263 If a NewSessionTicket is received by a multi-threaded client when attempting to 7264 reuse a previous ticket then a race condition can occur potentially leading to 7265 a double free of the ticket data. 7266 ([CVE-2015-1791]) 7267 7268 *Matt Caswell* 7269 7270 * Reject DH handshakes with parameters shorter than 768 bits. 7271 7272 *Kurt Roeckx and Emilia Kasper* 7273 7274 * dhparam: generate 2048-bit parameters by default. 7275 7276 *Kurt Roeckx and Emilia Kasper* 7277 7278### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7279 7280 * Segmentation fault in ASN1_TYPE_cmp fix 7281 7282 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7283 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7284 certificate signature algorithm consistency this can be used to crash any 7285 certificate verification operation and exploited in a DoS attack. Any 7286 application which performs certificate verification is vulnerable including 7287 OpenSSL clients and servers which enable client authentication. 7288 ([CVE-2015-0286]) 7289 7290 *Stephen Henson* 7291 7292 * ASN.1 structure reuse memory corruption fix 7293 7294 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7295 memory corruption via an invalid write. Such reuse is and has been 7296 strongly discouraged and is believed to be rare. 7297 7298 Applications that parse structures containing CHOICE or ANY DEFINED BY 7299 components may be affected. Certificate parsing (d2i_X509 and related 7300 functions) are however not affected. OpenSSL clients and servers are 7301 not affected. 7302 ([CVE-2015-0287]) 7303 7304 *Stephen Henson* 7305 7306 * PKCS7 NULL pointer dereferences fix 7307 7308 The PKCS#7 parsing code does not handle missing outer ContentInfo 7309 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7310 missing content and trigger a NULL pointer dereference on parsing. 7311 7312 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7313 otherwise parse PKCS#7 structures from untrusted sources are 7314 affected. OpenSSL clients and servers are not affected. 7315 7316 This issue was reported to OpenSSL by Michal Zalewski (Google). 7317 ([CVE-2015-0289]) 7318 7319 *Emilia Käsper* 7320 7321 * DoS via reachable assert in SSLv2 servers fix 7322 7323 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7324 servers that both support SSLv2 and enable export cipher suites by sending 7325 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7326 7327 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7328 (OpenSSL development team). 7329 ([CVE-2015-0293]) 7330 7331 *Emilia Käsper* 7332 7333 * Use After Free following d2i_ECPrivatekey error fix 7334 7335 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7336 could cause a use after free condition. This, in turn, could cause a double 7337 free in several private key parsing functions (such as d2i_PrivateKey 7338 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7339 for applications that receive EC private keys from untrusted 7340 sources. This scenario is considered rare. 7341 7342 This issue was discovered by the BoringSSL project and fixed in their 7343 commit 517073cd4b. 7344 ([CVE-2015-0209]) 7345 7346 *Matt Caswell* 7347 7348 * X509_to_X509_REQ NULL pointer deref fix 7349 7350 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7351 the certificate key is invalid. This function is rarely used in practice. 7352 7353 This issue was discovered by Brian Carpenter. 7354 ([CVE-2015-0288]) 7355 7356 *Stephen Henson* 7357 7358 * Removed the export ciphers from the DEFAULT ciphers 7359 7360 *Kurt Roeckx* 7361 7362### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7363 7364 * Build fixes for the Windows and OpenVMS platforms 7365 7366 *Matt Caswell and Richard Levitte* 7367 7368### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7369 7370 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7371 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7372 dereference. This could lead to a Denial Of Service attack. Thanks to 7373 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7374 ([CVE-2014-3571]) 7375 7376 *Steve Henson* 7377 7378 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7379 dtls1_buffer_record function under certain conditions. In particular this 7380 could occur if an attacker sent repeated DTLS records with the same 7381 sequence number but for the next epoch. The memory leak could be exploited 7382 by an attacker in a Denial of Service attack through memory exhaustion. 7383 Thanks to Chris Mueller for reporting this issue. 7384 ([CVE-2015-0206]) 7385 7386 *Matt Caswell* 7387 7388 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7389 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7390 method would be set to NULL which could later result in a NULL pointer 7391 dereference. Thanks to Frank Schmirler for reporting this issue. 7392 ([CVE-2014-3569]) 7393 7394 *Kurt Roeckx* 7395 7396 * Abort handshake if server key exchange message is omitted for ephemeral 7397 ECDH ciphersuites. 7398 7399 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7400 reporting this issue. 7401 ([CVE-2014-3572]) 7402 7403 *Steve Henson* 7404 7405 * Remove non-export ephemeral RSA code on client and server. This code 7406 violated the TLS standard by allowing the use of temporary RSA keys in 7407 non-export ciphersuites and could be used by a server to effectively 7408 downgrade the RSA key length used to a value smaller than the server 7409 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7410 INRIA or reporting this issue. 7411 ([CVE-2015-0204]) 7412 7413 *Steve Henson* 7414 7415 * Fixed issue where DH client certificates are accepted without verification. 7416 An OpenSSL server will accept a DH certificate for client authentication 7417 without the certificate verify message. This effectively allows a client to 7418 authenticate without the use of a private key. This only affects servers 7419 which trust a client certificate authority which issues certificates 7420 containing DH keys: these are extremely rare and hardly ever encountered. 7421 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7422 this issue. 7423 ([CVE-2015-0205]) 7424 7425 *Steve Henson* 7426 7427 * Ensure that the session ID context of an SSL is updated when its 7428 SSL_CTX is updated via SSL_set_SSL_CTX. 7429 7430 The session ID context is typically set from the parent SSL_CTX, 7431 and can vary with the CTX. 7432 7433 *Adam Langley* 7434 7435 * Fix various certificate fingerprint issues. 7436 7437 By using non-DER or invalid encodings outside the signed portion of a 7438 certificate the fingerprint can be changed without breaking the signature. 7439 Although no details of the signed portion of the certificate can be changed 7440 this can cause problems with some applications: e.g. those using the 7441 certificate fingerprint for blacklists. 7442 7443 1. Reject signatures with non zero unused bits. 7444 7445 If the BIT STRING containing the signature has non zero unused bits reject 7446 the signature. All current signature algorithms require zero unused bits. 7447 7448 2. Check certificate algorithm consistency. 7449 7450 Check the AlgorithmIdentifier inside TBS matches the one in the 7451 certificate signature. NB: this will result in signature failure 7452 errors for some broken certificates. 7453 7454 Thanks to Konrad Kraszewski from Google for reporting this issue. 7455 7456 3. Check DSA/ECDSA signatures use DER. 7457 7458 Re-encode DSA/ECDSA signatures and compare with the original received 7459 signature. Return an error if there is a mismatch. 7460 7461 This will reject various cases including garbage after signature 7462 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7463 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7464 (negative or with leading zeroes). 7465 7466 Further analysis was conducted and fixes were developed by Stephen Henson 7467 of the OpenSSL core team. 7468 7469 ([CVE-2014-8275]) 7470 7471 *Steve Henson* 7472 7473 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7474 results on some platforms, including x86_64. This bug occurs at random 7475 with a very low probability, and is not known to be exploitable in any 7476 way, though its exact impact is difficult to determine. Thanks to Pieter 7477 Wuille (Blockstream) who reported this issue and also suggested an initial 7478 fix. Further analysis was conducted by the OpenSSL development team and 7479 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7480 the OpenSSL core team. 7481 ([CVE-2014-3570]) 7482 7483 *Andy Polyakov* 7484 7485 * Do not resume sessions on the server if the negotiated protocol 7486 version does not match the session's version. Resuming with a different 7487 version, while not strictly forbidden by the RFC, is of questionable 7488 sanity and breaks all known clients. 7489 7490 *David Benjamin, Emilia Käsper* 7491 7492 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7493 early CCS messages during renegotiation. (Note that because 7494 renegotiation is encrypted, this early CCS was not exploitable.) 7495 7496 *Emilia Käsper* 7497 7498 * Tighten client-side session ticket handling during renegotiation: 7499 ensure that the client only accepts a session ticket if the server sends 7500 the extension anew in the ServerHello. Previously, a TLS client would 7501 reuse the old extension state and thus accept a session ticket if one was 7502 announced in the initial ServerHello. 7503 7504 Similarly, ensure that the client requires a session ticket if one 7505 was advertised in the ServerHello. Previously, a TLS client would 7506 ignore a missing NewSessionTicket message. 7507 7508 *Emilia Käsper* 7509 7510### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7511 7512 * SRTP Memory Leak. 7513 7514 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7515 sends a carefully crafted handshake message, to cause OpenSSL to fail 7516 to free up to 64k of memory causing a memory leak. This could be 7517 exploited in a Denial Of Service attack. This issue affects OpenSSL 7518 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7519 whether SRTP is used or configured. Implementations of OpenSSL that 7520 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7521 7522 The fix was developed by the OpenSSL team. 7523 ([CVE-2014-3513]) 7524 7525 *OpenSSL team* 7526 7527 * Session Ticket Memory Leak. 7528 7529 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7530 integrity of that ticket is first verified. In the event of a session 7531 ticket integrity check failing, OpenSSL will fail to free memory 7532 causing a memory leak. By sending a large number of invalid session 7533 tickets an attacker could exploit this issue in a Denial Of Service 7534 attack. 7535 ([CVE-2014-3567]) 7536 7537 *Steve Henson* 7538 7539 * Build option no-ssl3 is incomplete. 7540 7541 When OpenSSL is configured with "no-ssl3" as a build option, servers 7542 could accept and complete a SSL 3.0 handshake, and clients could be 7543 configured to send them. 7544 ([CVE-2014-3568]) 7545 7546 *Akamai and the OpenSSL team* 7547 7548 * Add support for TLS_FALLBACK_SCSV. 7549 Client applications doing fallback retries should call 7550 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7551 ([CVE-2014-3566]) 7552 7553 *Adam Langley, Bodo Moeller* 7554 7555 * Add additional DigestInfo checks. 7556 7557 Re-encode DigestInto in DER and check against the original when 7558 verifying RSA signature: this will reject any improperly encoded 7559 DigestInfo structures. 7560 7561 Note: this is a precautionary measure and no attacks are currently known. 7562 7563 *Steve Henson* 7564 7565### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7566 7567 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7568 SRP code can be overrun an internal buffer. Add sanity check that 7569 g, A, B < N to SRP code. 7570 7571 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7572 Group for discovering this issue. 7573 ([CVE-2014-3512]) 7574 7575 *Steve Henson* 7576 7577 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7578 TLS 1.0 instead of higher protocol versions when the ClientHello message 7579 is badly fragmented. This allows a man-in-the-middle attacker to force a 7580 downgrade to TLS 1.0 even if both the server and the client support a 7581 higher protocol version, by modifying the client's TLS records. 7582 7583 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7584 researching this issue. 7585 ([CVE-2014-3511]) 7586 7587 *David Benjamin* 7588 7589 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7590 to a denial of service attack. A malicious server can crash the client 7591 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7592 ciphersuite and sending carefully crafted handshake messages. 7593 7594 Thanks to Felix Gröbert (Google) for discovering and researching this 7595 issue. 7596 ([CVE-2014-3510]) 7597 7598 *Emilia Käsper* 7599 7600 * By sending carefully crafted DTLS packets an attacker could cause openssl 7601 to leak memory. This can be exploited through a Denial of Service attack. 7602 Thanks to Adam Langley for discovering and researching this issue. 7603 ([CVE-2014-3507]) 7604 7605 *Adam Langley* 7606 7607 * An attacker can force openssl to consume large amounts of memory whilst 7608 processing DTLS handshake messages. This can be exploited through a 7609 Denial of Service attack. 7610 Thanks to Adam Langley for discovering and researching this issue. 7611 ([CVE-2014-3506]) 7612 7613 *Adam Langley* 7614 7615 * An attacker can force an error condition which causes openssl to crash 7616 whilst processing DTLS packets due to memory being freed twice. This 7617 can be exploited through a Denial of Service attack. 7618 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7619 this issue. 7620 ([CVE-2014-3505]) 7621 7622 *Adam Langley* 7623 7624 * If a multithreaded client connects to a malicious server using a resumed 7625 session and the server sends an ec point format extension it could write 7626 up to 255 bytes to freed memory. 7627 7628 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7629 issue. 7630 ([CVE-2014-3509]) 7631 7632 *Gabor Tyukasz* 7633 7634 * A malicious server can crash an OpenSSL client with a null pointer 7635 dereference (read) by specifying an SRP ciphersuite even though it was not 7636 properly negotiated with the client. This can be exploited through a 7637 Denial of Service attack. 7638 7639 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7640 discovering and researching this issue. 7641 ([CVE-2014-5139]) 7642 7643 *Steve Henson* 7644 7645 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7646 X509_name_oneline, X509_name_print_ex et al. to leak some information 7647 from the stack. Applications may be affected if they echo pretty printing 7648 output to the attacker. 7649 7650 Thanks to Ivan Fratric (Google) for discovering this issue. 7651 ([CVE-2014-3508]) 7652 7653 *Emilia Käsper, and Steve Henson* 7654 7655 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7656 for corner cases. (Certain input points at infinity could lead to 7657 bogus results, with non-infinity inputs mapped to infinity too.) 7658 7659 *Bodo Moeller* 7660 7661### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7662 7663 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7664 handshake can force the use of weak keying material in OpenSSL 7665 SSL/TLS clients and servers. 7666 7667 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7668 researching this issue. ([CVE-2014-0224]) 7669 7670 *KIKUCHI Masashi, Steve Henson* 7671 7672 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7673 OpenSSL DTLS client the code can be made to recurse eventually crashing 7674 in a DoS attack. 7675 7676 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7677 ([CVE-2014-0221]) 7678 7679 *Imre Rad, Steve Henson* 7680 7681 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7682 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7683 client or server. This is potentially exploitable to run arbitrary 7684 code on a vulnerable client or server. 7685 7686 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7687 7688 *Jüri Aedla, Steve Henson* 7689 7690 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7691 are subject to a denial of service attack. 7692 7693 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7694 this issue. ([CVE-2014-3470]) 7695 7696 *Felix Gröbert, Ivan Fratric, Steve Henson* 7697 7698 * Harmonize version and its documentation. -f flag is used to display 7699 compilation flags. 7700 7701 *mancha <mancha1@zoho.com>* 7702 7703 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7704 in i2d_ECPrivateKey. 7705 7706 *mancha <mancha1@zoho.com>* 7707 7708 * Fix some double frees. These are not thought to be exploitable. 7709 7710 *mancha <mancha1@zoho.com>* 7711 7712### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7713 7714 * A missing bounds check in the handling of the TLS heartbeat extension 7715 can be used to reveal up to 64k of memory to a connected client or 7716 server. 7717 7718 Thanks for Neel Mehta of Google Security for discovering this bug and to 7719 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7720 preparing the fix ([CVE-2014-0160]) 7721 7722 *Adam Langley, Bodo Moeller* 7723 7724 * Fix for the attack described in the paper "Recovering OpenSSL 7725 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7726 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7727 <http://eprint.iacr.org/2014/140> 7728 7729 Thanks to Yuval Yarom and Naomi Benger for discovering this 7730 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7731 7732 *Yuval Yarom and Naomi Benger* 7733 7734 * TLS pad extension: draft-agl-tls-padding-03 7735 7736 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7737 TLS client Hello record length value would otherwise be > 255 and 7738 less that 512 pad with a dummy extension containing zeroes so it 7739 is at least 512 bytes long. 7740 7741 *Adam Langley, Steve Henson* 7742 7743### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7744 7745 * Fix for TLS record tampering bug. A carefully crafted invalid 7746 handshake could crash OpenSSL with a NULL pointer exception. 7747 Thanks to Anton Johansson for reporting this issues. 7748 ([CVE-2013-4353]) 7749 7750 * Keep original DTLS digest and encryption contexts in retransmission 7751 structures so we can use the previous session parameters if they need 7752 to be resent. ([CVE-2013-6450]) 7753 7754 *Steve Henson* 7755 7756 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 7757 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 7758 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 7759 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 7760 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 7761 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 7762 7763 *Rob Stradling, Adam Langley* 7764 7765### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 7766 7767 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 7768 supporting platforms or when small records were transferred. 7769 7770 *Andy Polyakov, Steve Henson* 7771 7772### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 7773 7774 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 7775 7776 This addresses the flaw in CBC record processing discovered by 7777 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 7778 at: <http://www.isg.rhul.ac.uk/tls/> 7779 7780 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 7781 Security Group at Royal Holloway, University of London 7782 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 7783 Emilia Käsper for the initial patch. 7784 ([CVE-2013-0169]) 7785 7786 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 7787 7788 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 7789 ciphersuites which can be exploited in a denial of service attack. 7790 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 7791 and detecting this bug and to Wolfgang Ettlinger 7792 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 7793 ([CVE-2012-2686]) 7794 7795 *Adam Langley* 7796 7797 * Return an error when checking OCSP signatures when key is NULL. 7798 This fixes a DoS attack. ([CVE-2013-0166]) 7799 7800 *Steve Henson* 7801 7802 * Make openssl verify return errors. 7803 7804 *Chris Palmer <palmer@google.com> and Ben Laurie* 7805 7806 * Call OCSP Stapling callback after ciphersuite has been chosen, so 7807 the right response is stapled. Also change SSL_get_certificate() 7808 so it returns the certificate actually sent. 7809 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 7810 7811 *Rob Stradling <rob.stradling@comodo.com>* 7812 7813 * Fix possible deadlock when decoding public keys. 7814 7815 *Steve Henson* 7816 7817 * Don't use TLS 1.0 record version number in initial client hello 7818 if renegotiating. 7819 7820 *Steve Henson* 7821 7822### Changes between 1.0.1b and 1.0.1c [10 May 2012] 7823 7824 * Sanity check record length before skipping explicit IV in TLS 7825 1.2, 1.1 and DTLS to fix DoS attack. 7826 7827 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 7828 fuzzing as a service testing platform. 7829 ([CVE-2012-2333]) 7830 7831 *Steve Henson* 7832 7833 * Initialise tkeylen properly when encrypting CMS messages. 7834 Thanks to Solar Designer of Openwall for reporting this issue. 7835 7836 *Steve Henson* 7837 7838 * In FIPS mode don't try to use composite ciphers as they are not 7839 approved. 7840 7841 *Steve Henson* 7842 7843### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 7844 7845 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 7846 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 7847 mean any application compiled against OpenSSL 1.0.0 headers setting 7848 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 7849 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 7850 0x10000000L Any application which was previously compiled against 7851 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 7852 will need to be recompiled as a result. Letting be results in 7853 inability to disable specifically TLS 1.1 and in client context, 7854 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 7855 7856 *Steve Henson* 7857 7858 * In order to ensure interoperability SSL_OP_NO_protocolX does not 7859 disable just protocol X, but all protocols above X *if* there are 7860 protocols *below* X still enabled. In more practical terms it means 7861 that if application wants to disable TLS1.0 in favor of TLS1.1 and 7862 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 7863 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 7864 client side. 7865 7866 *Andy Polyakov* 7867 7868### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 7869 7870 * Check for potentially exploitable overflows in asn1_d2i_read_bio 7871 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 7872 in CRYPTO_realloc_clean. 7873 7874 Thanks to Tavis Ormandy, Google Security Team, for discovering this 7875 issue and to Adam Langley <agl@chromium.org> for fixing it. 7876 ([CVE-2012-2110]) 7877 7878 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 7879 7880 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 7881 7882 *Adam Langley* 7883 7884 * Workarounds for some broken servers that "hang" if a client hello 7885 record length exceeds 255 bytes. 7886 7887 1. Do not use record version number > TLS 1.0 in initial client 7888 hello: some (but not all) hanging servers will now work. 7889 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 7890 the number of ciphers sent in the client hello. This should be 7891 set to an even number, such as 50, for example by passing: 7892 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 7893 Most broken servers should now work. 7894 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 7895 TLS 1.2 client support entirely. 7896 7897 *Steve Henson* 7898 7899 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 7900 7901 *Andy Polyakov* 7902 7903### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 7904 7905 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 7906 STRING form instead of a DigestInfo. 7907 7908 *Steve Henson* 7909 7910 * The format used for MDC2 RSA signatures is inconsistent between EVP 7911 and the RSA_sign/RSA_verify functions. This was made more apparent when 7912 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 7913 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 7914 the correct format in RSA_verify so both forms transparently work. 7915 7916 *Steve Henson* 7917 7918 * Some servers which support TLS 1.0 can choke if we initially indicate 7919 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 7920 encrypted premaster secret. As a workaround use the maximum permitted 7921 client version in client hello, this should keep such servers happy 7922 and still work with previous versions of OpenSSL. 7923 7924 *Steve Henson* 7925 7926 * Add support for TLS/DTLS heartbeats. 7927 7928 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7929 7930 * Add support for SCTP. 7931 7932 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7933 7934 * Improved PRNG seeding for VOS. 7935 7936 *Paul Green <Paul.Green@stratus.com>* 7937 7938 * Extensive assembler packs updates, most notably: 7939 7940 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 7941 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 7942 - x86_64: bit-sliced AES implementation; 7943 - ARM: NEON support, contemporary platforms optimizations; 7944 - s390x: z196 support; 7945 - `*`: GHASH and GF(2^m) multiplication implementations; 7946 7947 *Andy Polyakov* 7948 7949 * Make TLS-SRP code conformant with RFC 5054 API cleanup 7950 (removal of unnecessary code) 7951 7952 *Peter Sylvester <peter.sylvester@edelweb.fr>* 7953 7954 * Add TLS key material exporter from RFC 5705. 7955 7956 *Eric Rescorla* 7957 7958 * Add DTLS-SRTP negotiation from RFC 5764. 7959 7960 *Eric Rescorla* 7961 7962 * Add Next Protocol Negotiation, 7963 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 7964 disabled with a no-npn flag to config or Configure. Code donated 7965 by Google. 7966 7967 *Adam Langley <agl@google.com> and Ben Laurie* 7968 7969 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 7970 NIST-P256, NIST-P521, with constant-time single point multiplication on 7971 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 7972 required to use this (present in gcc 4.4 and later, for 64-bit builds). 7973 Code made available under Apache License version 2.0. 7974 7975 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 7976 line to include this in your build of OpenSSL, and run "make depend" (or 7977 "make update"). This enables the following EC_METHODs: 7978 7979 EC_GFp_nistp224_method() 7980 EC_GFp_nistp256_method() 7981 EC_GFp_nistp521_method() 7982 7983 EC_GROUP_new_by_curve_name() will automatically use these (while 7984 EC_GROUP_new_curve_GFp() currently prefers the more flexible 7985 implementations). 7986 7987 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 7988 7989 * Use type ossl_ssize_t instead of ssize_t which isn't available on 7990 all platforms. Move ssize_t definition from e_os.h to the public 7991 header file e_os2.h as it now appears in public header file cms.h 7992 7993 *Steve Henson* 7994 7995 * New -sigopt option to the ca, req and x509 utilities. Additional 7996 signature parameters can be passed using this option and in 7997 particular PSS. 7998 7999 *Steve Henson* 8000 8001 * Add RSA PSS signing function. This will generate and set the 8002 appropriate AlgorithmIdentifiers for PSS based on those in the 8003 corresponding EVP_MD_CTX structure. No application support yet. 8004 8005 *Steve Henson* 8006 8007 * Support for companion algorithm specific ASN1 signing routines. 8008 New function ASN1_item_sign_ctx() signs a pre-initialised 8009 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 8010 the appropriate parameters. 8011 8012 *Steve Henson* 8013 8014 * Add new algorithm specific ASN1 verification initialisation function 8015 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 8016 handling will be the same no matter what EVP_PKEY_METHOD is used. 8017 Add a PSS handler to support verification of PSS signatures: checked 8018 against a number of sample certificates. 8019 8020 *Steve Henson* 8021 8022 * Add signature printing for PSS. Add PSS OIDs. 8023 8024 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 8025 8026 * Add algorithm specific signature printing. An individual ASN1 method 8027 can now print out signatures instead of the standard hex dump. 8028 8029 More complex signatures (e.g. PSS) can print out more meaningful 8030 information. Include DSA version that prints out the signature 8031 parameters r, s. 8032 8033 *Steve Henson* 8034 8035 * Password based recipient info support for CMS library: implementing 8036 RFC3211. 8037 8038 *Steve Henson* 8039 8040 * Split password based encryption into PBES2 and PBKDF2 functions. This 8041 neatly separates the code into cipher and PBE sections and is required 8042 for some algorithms that split PBES2 into separate pieces (such as 8043 password based CMS). 8044 8045 *Steve Henson* 8046 8047 * Session-handling fixes: 8048 - Fix handling of connections that are resuming with a session ID, 8049 but also support Session Tickets. 8050 - Fix a bug that suppressed issuing of a new ticket if the client 8051 presented a ticket with an expired session. 8052 - Try to set the ticket lifetime hint to something reasonable. 8053 - Make tickets shorter by excluding irrelevant information. 8054 - On the client side, don't ignore renewed tickets. 8055 8056 *Adam Langley, Bodo Moeller (Google)* 8057 8058 * Fix PSK session representation. 8059 8060 *Bodo Moeller* 8061 8062 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 8063 8064 This work was sponsored by Intel. 8065 8066 *Andy Polyakov* 8067 8068 * Add GCM support to TLS library. Some custom code is needed to split 8069 the IV between the fixed (from PRF) and explicit (from TLS record) 8070 portions. This adds all GCM ciphersuites supported by RFC5288 and 8071 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 8072 add a special AESGCM string for GCM only. 8073 8074 *Steve Henson* 8075 8076 * Expand range of ctrls for AES GCM. Permit setting invocation 8077 field on decrypt and retrieval of invocation field only on encrypt. 8078 8079 *Steve Henson* 8080 8081 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 8082 As required by RFC5289 these ciphersuites cannot be used if for 8083 versions of TLS earlier than 1.2. 8084 8085 *Steve Henson* 8086 8087 * For FIPS capable OpenSSL interpret a NULL default public key method 8088 as unset and return the appropriate default but do *not* set the default. 8089 This means we can return the appropriate method in applications that 8090 switch between FIPS and non-FIPS modes. 8091 8092 *Steve Henson* 8093 8094 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 8095 ENGINE is used then we cannot handle that in the FIPS module so we 8096 keep original code iff non-FIPS operations are allowed. 8097 8098 *Steve Henson* 8099 8100 * Add -attime option to openssl utilities. 8101 8102 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 8103 8104 * Redirect DSA and DH operations to FIPS module in FIPS mode. 8105 8106 *Steve Henson* 8107 8108 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 8109 FIPS EC methods unconditionally for now. 8110 8111 *Steve Henson* 8112 8113 * New build option no-ec2m to disable characteristic 2 code. 8114 8115 *Steve Henson* 8116 8117 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 8118 all cases can be covered as some introduce binary incompatibilities. 8119 8120 *Steve Henson* 8121 8122 * Redirect RSA operations to FIPS module including keygen, 8123 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 8124 8125 *Steve Henson* 8126 8127 * Add similar low-level API blocking to ciphers. 8128 8129 *Steve Henson* 8130 8131 * low-level digest APIs are not approved in FIPS mode: any attempt 8132 to use these will cause a fatal error. Applications that *really* want 8133 to use them can use the `private_*` version instead. 8134 8135 *Steve Henson* 8136 8137 * Redirect cipher operations to FIPS module for FIPS builds. 8138 8139 *Steve Henson* 8140 8141 * Redirect digest operations to FIPS module for FIPS builds. 8142 8143 *Steve Henson* 8144 8145 * Update build system to add "fips" flag which will link in fipscanister.o 8146 for static and shared library builds embedding a signature if needed. 8147 8148 *Steve Henson* 8149 8150 * Output TLS supported curves in preference order instead of numerical 8151 order. This is currently hardcoded for the highest order curves first. 8152 This should be configurable so applications can judge speed vs strength. 8153 8154 *Steve Henson* 8155 8156 * Add TLS v1.2 server support for client authentication. 8157 8158 *Steve Henson* 8159 8160 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8161 and enable MD5. 8162 8163 *Steve Henson* 8164 8165 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8166 FIPS modules versions. 8167 8168 *Steve Henson* 8169 8170 * Add TLS v1.2 client side support for client authentication. Keep cache 8171 of handshake records longer as we don't know the hash algorithm to use 8172 until after the certificate request message is received. 8173 8174 *Steve Henson* 8175 8176 * Initial TLS v1.2 client support. Add a default signature algorithms 8177 extension including all the algorithms we support. Parse new signature 8178 format in client key exchange. Relax some ECC signing restrictions for 8179 TLS v1.2 as indicated in RFC5246. 8180 8181 *Steve Henson* 8182 8183 * Add server support for TLS v1.2 signature algorithms extension. Switch 8184 to new signature format when needed using client digest preference. 8185 All server ciphersuites should now work correctly in TLS v1.2. No client 8186 support yet and no support for client certificates. 8187 8188 *Steve Henson* 8189 8190 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8191 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8192 ciphersuites. At present only RSA key exchange ciphersuites work with 8193 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8194 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8195 and version checking. 8196 8197 *Steve Henson* 8198 8199 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8200 with this defined it will not be affected by any changes to ssl internal 8201 structures. Add several utility functions to allow openssl application 8202 to work with OPENSSL_NO_SSL_INTERN defined. 8203 8204 *Steve Henson* 8205 8206 * A long standing patch to add support for SRP from EdelWeb (Peter 8207 Sylvester and Christophe Renou) was integrated. 8208 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8209 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8210 Ben Laurie* 8211 8212 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8213 8214 *Steve Henson* 8215 8216 * Permit abbreviated handshakes when renegotiating using the function 8217 SSL_renegotiate_abbreviated(). 8218 8219 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8220 8221 * Add call to ENGINE_register_all_complete() to 8222 ENGINE_load_builtin_engines(), so some implementations get used 8223 automatically instead of needing explicit application support. 8224 8225 *Steve Henson* 8226 8227 * Add support for TLS key exporter as described in RFC5705. 8228 8229 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8230 8231 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8232 a few changes are required: 8233 8234 Add SSL_OP_NO_TLSv1_1 flag. 8235 Add TLSv1_1 methods. 8236 Update version checking logic to handle version 1.1. 8237 Add explicit IV handling (ported from DTLS code). 8238 Add command line options to s_client/s_server. 8239 8240 *Steve Henson* 8241 8242OpenSSL 1.0.0 8243------------- 8244 8245### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8246 8247 * X509_ATTRIBUTE memory leak 8248 8249 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8250 memory. This structure is used by the PKCS#7 and CMS routines so any 8251 application which reads PKCS#7 or CMS data from untrusted sources is 8252 affected. SSL/TLS is not affected. 8253 8254 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8255 libFuzzer. 8256 ([CVE-2015-3195]) 8257 8258 *Stephen Henson* 8259 8260 * Race condition handling PSK identify hint 8261 8262 If PSK identity hints are received by a multi-threaded client then 8263 the values are wrongly updated in the parent SSL_CTX structure. This can 8264 result in a race condition potentially leading to a double free of the 8265 identify hint data. 8266 ([CVE-2015-3196]) 8267 8268 *Stephen Henson* 8269 8270### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8271 8272 * Malformed ECParameters causes infinite loop 8273 8274 When processing an ECParameters structure OpenSSL enters an infinite loop 8275 if the curve specified is over a specially malformed binary polynomial 8276 field. 8277 8278 This can be used to perform denial of service against any 8279 system which processes public keys, certificate requests or 8280 certificates. This includes TLS clients and TLS servers with 8281 client authentication enabled. 8282 8283 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8284 ([CVE-2015-1788]) 8285 8286 *Andy Polyakov* 8287 8288 * Exploitable out-of-bounds read in X509_cmp_time 8289 8290 X509_cmp_time does not properly check the length of the ASN1_TIME 8291 string and can read a few bytes out of bounds. In addition, 8292 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8293 time string. 8294 8295 An attacker can use this to craft malformed certificates and CRLs of 8296 various sizes and potentially cause a segmentation fault, resulting in 8297 a DoS on applications that verify certificates or CRLs. TLS clients 8298 that verify CRLs are affected. TLS clients and servers with client 8299 authentication enabled may be affected if they use custom verification 8300 callbacks. 8301 8302 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8303 independently by Hanno Böck. 8304 ([CVE-2015-1789]) 8305 8306 *Emilia Käsper* 8307 8308 * PKCS7 crash with missing EnvelopedContent 8309 8310 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8311 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8312 with missing content and trigger a NULL pointer dereference on parsing. 8313 8314 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8315 structures from untrusted sources are affected. OpenSSL clients and 8316 servers are not affected. 8317 8318 This issue was reported to OpenSSL by Michal Zalewski (Google). 8319 ([CVE-2015-1790]) 8320 8321 *Emilia Käsper* 8322 8323 * CMS verify infinite loop with unknown hash function 8324 8325 When verifying a signedData message the CMS code can enter an infinite loop 8326 if presented with an unknown hash function OID. This can be used to perform 8327 denial of service against any system which verifies signedData messages using 8328 the CMS code. 8329 This issue was reported to OpenSSL by Johannes Bauer. 8330 ([CVE-2015-1792]) 8331 8332 *Stephen Henson* 8333 8334 * Race condition handling NewSessionTicket 8335 8336 If a NewSessionTicket is received by a multi-threaded client when attempting to 8337 reuse a previous ticket then a race condition can occur potentially leading to 8338 a double free of the ticket data. 8339 ([CVE-2015-1791]) 8340 8341 *Matt Caswell* 8342 8343### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8344 8345 * Segmentation fault in ASN1_TYPE_cmp fix 8346 8347 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8348 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8349 certificate signature algorithm consistency this can be used to crash any 8350 certificate verification operation and exploited in a DoS attack. Any 8351 application which performs certificate verification is vulnerable including 8352 OpenSSL clients and servers which enable client authentication. 8353 ([CVE-2015-0286]) 8354 8355 *Stephen Henson* 8356 8357 * ASN.1 structure reuse memory corruption fix 8358 8359 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8360 memory corruption via an invalid write. Such reuse is and has been 8361 strongly discouraged and is believed to be rare. 8362 8363 Applications that parse structures containing CHOICE or ANY DEFINED BY 8364 components may be affected. Certificate parsing (d2i_X509 and related 8365 functions) are however not affected. OpenSSL clients and servers are 8366 not affected. 8367 ([CVE-2015-0287]) 8368 8369 *Stephen Henson* 8370 8371 * PKCS7 NULL pointer dereferences fix 8372 8373 The PKCS#7 parsing code does not handle missing outer ContentInfo 8374 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8375 missing content and trigger a NULL pointer dereference on parsing. 8376 8377 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8378 otherwise parse PKCS#7 structures from untrusted sources are 8379 affected. OpenSSL clients and servers are not affected. 8380 8381 This issue was reported to OpenSSL by Michal Zalewski (Google). 8382 ([CVE-2015-0289]) 8383 8384 *Emilia Käsper* 8385 8386 * DoS via reachable assert in SSLv2 servers fix 8387 8388 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8389 servers that both support SSLv2 and enable export cipher suites by sending 8390 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8391 8392 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8393 (OpenSSL development team). 8394 ([CVE-2015-0293]) 8395 8396 *Emilia Käsper* 8397 8398 * Use After Free following d2i_ECPrivatekey error fix 8399 8400 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8401 could cause a use after free condition. This, in turn, could cause a double 8402 free in several private key parsing functions (such as d2i_PrivateKey 8403 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8404 for applications that receive EC private keys from untrusted 8405 sources. This scenario is considered rare. 8406 8407 This issue was discovered by the BoringSSL project and fixed in their 8408 commit 517073cd4b. 8409 ([CVE-2015-0209]) 8410 8411 *Matt Caswell* 8412 8413 * X509_to_X509_REQ NULL pointer deref fix 8414 8415 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8416 the certificate key is invalid. This function is rarely used in practice. 8417 8418 This issue was discovered by Brian Carpenter. 8419 ([CVE-2015-0288]) 8420 8421 *Stephen Henson* 8422 8423 * Removed the export ciphers from the DEFAULT ciphers 8424 8425 *Kurt Roeckx* 8426 8427### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8428 8429 * Build fixes for the Windows and OpenVMS platforms 8430 8431 *Matt Caswell and Richard Levitte* 8432 8433### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8434 8435 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8436 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8437 dereference. This could lead to a Denial Of Service attack. Thanks to 8438 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8439 ([CVE-2014-3571]) 8440 8441 *Steve Henson* 8442 8443 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8444 dtls1_buffer_record function under certain conditions. In particular this 8445 could occur if an attacker sent repeated DTLS records with the same 8446 sequence number but for the next epoch. The memory leak could be exploited 8447 by an attacker in a Denial of Service attack through memory exhaustion. 8448 Thanks to Chris Mueller for reporting this issue. 8449 ([CVE-2015-0206]) 8450 8451 *Matt Caswell* 8452 8453 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8454 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8455 method would be set to NULL which could later result in a NULL pointer 8456 dereference. Thanks to Frank Schmirler for reporting this issue. 8457 ([CVE-2014-3569]) 8458 8459 *Kurt Roeckx* 8460 8461 * Abort handshake if server key exchange message is omitted for ephemeral 8462 ECDH ciphersuites. 8463 8464 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8465 reporting this issue. 8466 ([CVE-2014-3572]) 8467 8468 *Steve Henson* 8469 8470 * Remove non-export ephemeral RSA code on client and server. This code 8471 violated the TLS standard by allowing the use of temporary RSA keys in 8472 non-export ciphersuites and could be used by a server to effectively 8473 downgrade the RSA key length used to a value smaller than the server 8474 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8475 INRIA or reporting this issue. 8476 ([CVE-2015-0204]) 8477 8478 *Steve Henson* 8479 8480 * Fixed issue where DH client certificates are accepted without verification. 8481 An OpenSSL server will accept a DH certificate for client authentication 8482 without the certificate verify message. This effectively allows a client to 8483 authenticate without the use of a private key. This only affects servers 8484 which trust a client certificate authority which issues certificates 8485 containing DH keys: these are extremely rare and hardly ever encountered. 8486 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8487 this issue. 8488 ([CVE-2015-0205]) 8489 8490 *Steve Henson* 8491 8492 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8493 results on some platforms, including x86_64. This bug occurs at random 8494 with a very low probability, and is not known to be exploitable in any 8495 way, though its exact impact is difficult to determine. Thanks to Pieter 8496 Wuille (Blockstream) who reported this issue and also suggested an initial 8497 fix. Further analysis was conducted by the OpenSSL development team and 8498 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8499 the OpenSSL core team. 8500 ([CVE-2014-3570]) 8501 8502 *Andy Polyakov* 8503 8504 * Fix various certificate fingerprint issues. 8505 8506 By using non-DER or invalid encodings outside the signed portion of a 8507 certificate the fingerprint can be changed without breaking the signature. 8508 Although no details of the signed portion of the certificate can be changed 8509 this can cause problems with some applications: e.g. those using the 8510 certificate fingerprint for blacklists. 8511 8512 1. Reject signatures with non zero unused bits. 8513 8514 If the BIT STRING containing the signature has non zero unused bits reject 8515 the signature. All current signature algorithms require zero unused bits. 8516 8517 2. Check certificate algorithm consistency. 8518 8519 Check the AlgorithmIdentifier inside TBS matches the one in the 8520 certificate signature. NB: this will result in signature failure 8521 errors for some broken certificates. 8522 8523 Thanks to Konrad Kraszewski from Google for reporting this issue. 8524 8525 3. Check DSA/ECDSA signatures use DER. 8526 8527 Reencode DSA/ECDSA signatures and compare with the original received 8528 signature. Return an error if there is a mismatch. 8529 8530 This will reject various cases including garbage after signature 8531 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8532 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8533 (negative or with leading zeroes). 8534 8535 Further analysis was conducted and fixes were developed by Stephen Henson 8536 of the OpenSSL core team. 8537 8538 ([CVE-2014-8275]) 8539 8540 *Steve Henson* 8541 8542### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8543 8544 * Session Ticket Memory Leak. 8545 8546 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8547 integrity of that ticket is first verified. In the event of a session 8548 ticket integrity check failing, OpenSSL will fail to free memory 8549 causing a memory leak. By sending a large number of invalid session 8550 tickets an attacker could exploit this issue in a Denial Of Service 8551 attack. 8552 ([CVE-2014-3567]) 8553 8554 *Steve Henson* 8555 8556 * Build option no-ssl3 is incomplete. 8557 8558 When OpenSSL is configured with "no-ssl3" as a build option, servers 8559 could accept and complete a SSL 3.0 handshake, and clients could be 8560 configured to send them. 8561 ([CVE-2014-3568]) 8562 8563 *Akamai and the OpenSSL team* 8564 8565 * Add support for TLS_FALLBACK_SCSV. 8566 Client applications doing fallback retries should call 8567 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8568 ([CVE-2014-3566]) 8569 8570 *Adam Langley, Bodo Moeller* 8571 8572 * Add additional DigestInfo checks. 8573 8574 Reencode DigestInto in DER and check against the original when 8575 verifying RSA signature: this will reject any improperly encoded 8576 DigestInfo structures. 8577 8578 Note: this is a precautionary measure and no attacks are currently known. 8579 8580 *Steve Henson* 8581 8582### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8583 8584 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8585 to a denial of service attack. A malicious server can crash the client 8586 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8587 ciphersuite and sending carefully crafted handshake messages. 8588 8589 Thanks to Felix Gröbert (Google) for discovering and researching this 8590 issue. 8591 ([CVE-2014-3510]) 8592 8593 *Emilia Käsper* 8594 8595 * By sending carefully crafted DTLS packets an attacker could cause openssl 8596 to leak memory. This can be exploited through a Denial of Service attack. 8597 Thanks to Adam Langley for discovering and researching this issue. 8598 ([CVE-2014-3507]) 8599 8600 *Adam Langley* 8601 8602 * An attacker can force openssl to consume large amounts of memory whilst 8603 processing DTLS handshake messages. This can be exploited through a 8604 Denial of Service attack. 8605 Thanks to Adam Langley for discovering and researching this issue. 8606 ([CVE-2014-3506]) 8607 8608 *Adam Langley* 8609 8610 * An attacker can force an error condition which causes openssl to crash 8611 whilst processing DTLS packets due to memory being freed twice. This 8612 can be exploited through a Denial of Service attack. 8613 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8614 this issue. 8615 ([CVE-2014-3505]) 8616 8617 *Adam Langley* 8618 8619 * If a multithreaded client connects to a malicious server using a resumed 8620 session and the server sends an ec point format extension it could write 8621 up to 255 bytes to freed memory. 8622 8623 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8624 issue. 8625 ([CVE-2014-3509]) 8626 8627 *Gabor Tyukasz* 8628 8629 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8630 X509_name_oneline, X509_name_print_ex et al. to leak some information 8631 from the stack. Applications may be affected if they echo pretty printing 8632 output to the attacker. 8633 8634 Thanks to Ivan Fratric (Google) for discovering this issue. 8635 ([CVE-2014-3508]) 8636 8637 *Emilia Käsper, and Steve Henson* 8638 8639 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8640 for corner cases. (Certain input points at infinity could lead to 8641 bogus results, with non-infinity inputs mapped to infinity too.) 8642 8643 *Bodo Moeller* 8644 8645### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8646 8647 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8648 handshake can force the use of weak keying material in OpenSSL 8649 SSL/TLS clients and servers. 8650 8651 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8652 researching this issue. ([CVE-2014-0224]) 8653 8654 *KIKUCHI Masashi, Steve Henson* 8655 8656 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8657 OpenSSL DTLS client the code can be made to recurse eventually crashing 8658 in a DoS attack. 8659 8660 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8661 ([CVE-2014-0221]) 8662 8663 *Imre Rad, Steve Henson* 8664 8665 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8666 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8667 client or server. This is potentially exploitable to run arbitrary 8668 code on a vulnerable client or server. 8669 8670 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8671 8672 *Jüri Aedla, Steve Henson* 8673 8674 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8675 are subject to a denial of service attack. 8676 8677 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8678 this issue. ([CVE-2014-3470]) 8679 8680 *Felix Gröbert, Ivan Fratric, Steve Henson* 8681 8682 * Harmonize version and its documentation. -f flag is used to display 8683 compilation flags. 8684 8685 *mancha <mancha1@zoho.com>* 8686 8687 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8688 in i2d_ECPrivateKey. 8689 8690 *mancha <mancha1@zoho.com>* 8691 8692 * Fix some double frees. These are not thought to be exploitable. 8693 8694 *mancha <mancha1@zoho.com>* 8695 8696 * Fix for the attack described in the paper "Recovering OpenSSL 8697 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8698 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8699 <http://eprint.iacr.org/2014/140> 8700 8701 Thanks to Yuval Yarom and Naomi Benger for discovering this 8702 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8703 8704 *Yuval Yarom and Naomi Benger* 8705 8706### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8707 8708 * Keep original DTLS digest and encryption contexts in retransmission 8709 structures so we can use the previous session parameters if they need 8710 to be resent. ([CVE-2013-6450]) 8711 8712 *Steve Henson* 8713 8714 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8715 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8716 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8717 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8718 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8719 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8720 8721 *Rob Stradling, Adam Langley* 8722 8723### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8724 8725 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8726 8727 This addresses the flaw in CBC record processing discovered by 8728 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8729 at: <http://www.isg.rhul.ac.uk/tls/> 8730 8731 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8732 Security Group at Royal Holloway, University of London 8733 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8734 Emilia Käsper for the initial patch. 8735 ([CVE-2013-0169]) 8736 8737 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8738 8739 * Return an error when checking OCSP signatures when key is NULL. 8740 This fixes a DoS attack. ([CVE-2013-0166]) 8741 8742 *Steve Henson* 8743 8744 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8745 the right response is stapled. Also change SSL_get_certificate() 8746 so it returns the certificate actually sent. 8747 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8748 (This is a backport) 8749 8750 *Rob Stradling <rob.stradling@comodo.com>* 8751 8752 * Fix possible deadlock when decoding public keys. 8753 8754 *Steve Henson* 8755 8756### Changes between 1.0.0i and 1.0.0j [10 May 2012] 8757 8758[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 8759OpenSSL 1.0.1.] 8760 8761 * Sanity check record length before skipping explicit IV in DTLS 8762 to fix DoS attack. 8763 8764 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8765 fuzzing as a service testing platform. 8766 ([CVE-2012-2333]) 8767 8768 *Steve Henson* 8769 8770 * Initialise tkeylen properly when encrypting CMS messages. 8771 Thanks to Solar Designer of Openwall for reporting this issue. 8772 8773 *Steve Henson* 8774 8775### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 8776 8777 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8778 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8779 in CRYPTO_realloc_clean. 8780 8781 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8782 issue and to Adam Langley <agl@chromium.org> for fixing it. 8783 ([CVE-2012-2110]) 8784 8785 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8786 8787### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 8788 8789 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 8790 in CMS and PKCS7 code. When RSA decryption fails use a random key for 8791 content decryption and always return the same error. Note: this attack 8792 needs on average 2^20 messages so it only affects automated senders. The 8793 old behaviour can be re-enabled in the CMS code by setting the 8794 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 8795 an MMA defence is not necessary. 8796 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 8797 this issue. ([CVE-2012-0884]) 8798 8799 *Steve Henson* 8800 8801 * Fix CVE-2011-4619: make sure we really are receiving a 8802 client hello before rejecting multiple SGC restarts. Thanks to 8803 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 8804 8805 *Steve Henson* 8806 8807### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 8808 8809 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 8810 Thanks to Antonio Martin, Enterprise Secure Access Research and 8811 Development, Cisco Systems, Inc. for discovering this bug and 8812 preparing a fix. ([CVE-2012-0050]) 8813 8814 *Antonio Martin* 8815 8816### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 8817 8818 * Nadhem Alfardan and Kenny Paterson have discovered an extension 8819 of the Vaudenay padding oracle attack on CBC mode encryption 8820 which enables an efficient plaintext recovery attack against 8821 the OpenSSL implementation of DTLS. Their attack exploits timing 8822 differences arising during decryption processing. A research 8823 paper describing this attack can be found at: 8824 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 8825 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8826 Security Group at Royal Holloway, University of London 8827 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 8828 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 8829 for preparing the fix. ([CVE-2011-4108]) 8830 8831 *Robin Seggelmann, Michael Tuexen* 8832 8833 * Clear bytes used for block padding of SSL 3.0 records. 8834 ([CVE-2011-4576]) 8835 8836 *Adam Langley (Google)* 8837 8838 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 8839 Kadianakis <desnacked@gmail.com> for discovering this issue and 8840 Adam Langley for preparing the fix. ([CVE-2011-4619]) 8841 8842 *Adam Langley (Google)* 8843 8844 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 8845 8846 *Andrey Kulikov <amdeich@gmail.com>* 8847 8848 * Prevent malformed RFC3779 data triggering an assertion failure. 8849 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 8850 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 8851 8852 *Rob Austein <sra@hactrn.net>* 8853 8854 * Improved PRNG seeding for VOS. 8855 8856 *Paul Green <Paul.Green@stratus.com>* 8857 8858 * Fix ssl_ciph.c set-up race. 8859 8860 *Adam Langley (Google)* 8861 8862 * Fix spurious failures in ecdsatest.c. 8863 8864 *Emilia Käsper (Google)* 8865 8866 * Fix the BIO_f_buffer() implementation (which was mixing different 8867 interpretations of the `..._len` fields). 8868 8869 *Adam Langley (Google)* 8870 8871 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 8872 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 8873 threads won't reuse the same blinding coefficients. 8874 8875 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 8876 lock to call BN_BLINDING_invert_ex, and avoids one use of 8877 BN_BLINDING_update for each BN_BLINDING structure (previously, 8878 the last update always remained unused). 8879 8880 *Emilia Käsper (Google)* 8881 8882 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 8883 8884 *Bob Buckholz (Google)* 8885 8886### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 8887 8888 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 8889 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 8890 8891 *Kaspar Brand <ossl@velox.ch>* 8892 8893 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 8894 for multi-threaded use of ECDH. ([CVE-2011-3210]) 8895 8896 *Adam Langley (Google)* 8897 8898 * Fix x509_name_ex_d2i memory leak on bad inputs. 8899 8900 *Bodo Moeller* 8901 8902 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 8903 signature public key algorithm by using OID xref utilities instead. 8904 Before this you could only use some ECC ciphersuites with SHA1 only. 8905 8906 *Steve Henson* 8907 8908 * Add protection against ECDSA timing attacks as mentioned in the paper 8909 by Billy Bob Brumley and Nicola Tuveri, see: 8910 <http://eprint.iacr.org/2011/232.pdf> 8911 8912 *Billy Bob Brumley and Nicola Tuveri* 8913 8914### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 8915 8916 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 8917 8918 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 8919 8920 * Fix bug in string printing code: if *any* escaping is enabled we must 8921 escape the escape character (backslash) or the resulting string is 8922 ambiguous. 8923 8924 *Steve Henson* 8925 8926### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 8927 8928 * Disable code workaround for ancient and obsolete Netscape browsers 8929 and servers: an attacker can use it in a ciphersuite downgrade attack. 8930 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 8931 8932 *Steve Henson* 8933 8934 * Fixed J-PAKE implementation error, originally discovered by 8935 Sebastien Martini, further info and confirmation from Stefan 8936 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 8937 8938 *Ben Laurie* 8939 8940### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 8941 8942 * Fix extension code to avoid race conditions which can result in a buffer 8943 overrun vulnerability: resumed sessions must not be modified as they can 8944 be shared by multiple threads. CVE-2010-3864 8945 8946 *Steve Henson* 8947 8948 * Fix WIN32 build system to correctly link an ENGINE directory into 8949 a DLL. 8950 8951 *Steve Henson* 8952 8953### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 8954 8955 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 8956 ([CVE-2010-1633]) 8957 8958 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 8959 8960### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 8961 8962 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 8963 context. The operation can be customised via the ctrl mechanism in 8964 case ENGINEs want to include additional functionality. 8965 8966 *Steve Henson* 8967 8968 * Tolerate yet another broken PKCS#8 key format: private key value negative. 8969 8970 *Steve Henson* 8971 8972 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 8973 output hashes compatible with older versions of OpenSSL. 8974 8975 *Willy Weisz <weisz@vcpc.univie.ac.at>* 8976 8977 * Fix compression algorithm handling: if resuming a session use the 8978 compression algorithm of the resumed session instead of determining 8979 it from client hello again. Don't allow server to change algorithm. 8980 8981 *Steve Henson* 8982 8983 * Add load_crls() function to commands tidying load_certs() too. Add option 8984 to verify utility to allow additional CRLs to be included. 8985 8986 *Steve Henson* 8987 8988 * Update OCSP request code to permit adding custom headers to the request: 8989 some responders need this. 8990 8991 *Steve Henson* 8992 8993 * The function EVP_PKEY_sign() returns <=0 on error: check return code 8994 correctly. 8995 8996 *Julia Lawall <julia@diku.dk>* 8997 8998 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 8999 needlessly dereferenced structures, used obsolete functions and 9000 didn't handle all updated verify codes correctly. 9001 9002 *Steve Henson* 9003 9004 * Disable MD2 in the default configuration. 9005 9006 *Steve Henson* 9007 9008 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 9009 indicate the initial BIO being pushed or popped. This makes it possible 9010 to determine whether the BIO is the one explicitly called or as a result 9011 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 9012 it handles reference counts correctly and doesn't zero out the I/O bio 9013 when it is not being explicitly popped. WARNING: applications which 9014 included workarounds for the old buggy behaviour will need to be modified 9015 or they could free up already freed BIOs. 9016 9017 *Steve Henson* 9018 9019 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 9020 renaming to all platforms (within the 0.9.8 branch, this was 9021 done conditionally on Netware platforms to avoid a name clash). 9022 9023 *Guenter <lists@gknw.net>* 9024 9025 * Add ECDHE and PSK support to DTLS. 9026 9027 *Michael Tuexen <tuexen@fh-muenster.de>* 9028 9029 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 9030 be used on C++. 9031 9032 *Steve Henson* 9033 9034 * Add "missing" function EVP_MD_flags() (without this the only way to 9035 retrieve a digest flags is by accessing the structure directly. Update 9036 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 9037 or cipher is registered as in the "from" argument. Print out all 9038 registered digests in the dgst usage message instead of manually 9039 attempting to work them out. 9040 9041 *Steve Henson* 9042 9043 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 9044 this allows the use of compression and extensions. Change default cipher 9045 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 9046 by default unless an application cipher string requests it. 9047 9048 *Steve Henson* 9049 9050 * Alter match criteria in PKCS12_parse(). It used to try to use local 9051 key ids to find matching certificates and keys but some PKCS#12 files 9052 don't follow the (somewhat unwritten) rules and this strategy fails. 9053 Now just gather all certificates together and the first private key 9054 then look for the first certificate that matches the key. 9055 9056 *Steve Henson* 9057 9058 * Support use of registered digest and cipher names for dgst and cipher 9059 commands instead of having to add each one as a special case. So now 9060 you can do: 9061 9062 openssl sha256 foo 9063 9064 as well as: 9065 9066 openssl dgst -sha256 foo 9067 9068 and this works for ENGINE based algorithms too. 9069 9070 *Steve Henson* 9071 9072 * Update Gost ENGINE to support parameter files. 9073 9074 *Victor B. Wagner <vitus@cryptocom.ru>* 9075 9076 * Support GeneralizedTime in ca utility. 9077 9078 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 9079 9080 * Enhance the hash format used for certificate directory links. The new 9081 form uses the canonical encoding (meaning equivalent names will work 9082 even if they aren't identical) and uses SHA1 instead of MD5. This form 9083 is incompatible with the older format and as a result c_rehash should 9084 be used to rebuild symbolic links. 9085 9086 *Steve Henson* 9087 9088 * Make PKCS#8 the default write format for private keys, replacing the 9089 traditional format. This form is standardised, more secure and doesn't 9090 include an implicit MD5 dependency. 9091 9092 *Steve Henson* 9093 9094 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 9095 committed to OpenSSL should pass this lot as a minimum. 9096 9097 *Steve Henson* 9098 9099 * Add session ticket override functionality for use by EAP-FAST. 9100 9101 *Jouni Malinen <j@w1.fi>* 9102 9103 * Modify HMAC functions to return a value. Since these can be implemented 9104 in an ENGINE errors can occur. 9105 9106 *Steve Henson* 9107 9108 * Type-checked OBJ_bsearch_ex. 9109 9110 *Ben Laurie* 9111 9112 * Type-checked OBJ_bsearch. Also some constification necessitated 9113 by type-checking. Still to come: TXT_DB, bsearch(?), 9114 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 9115 CONF_VALUE. 9116 9117 *Ben Laurie* 9118 9119 * New function OPENSSL_gmtime_adj() to add a specific number of days and 9120 seconds to a tm structure directly, instead of going through OS 9121 specific date routines. This avoids any issues with OS routines such 9122 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 9123 and X509_time_adj_ex() to cover the extended range. The existing 9124 X509_time_adj() is still usable and will no longer have any date issues. 9125 9126 *Steve Henson* 9127 9128 * Delta CRL support. New use deltas option which will attempt to locate 9129 and search any appropriate delta CRLs available. 9130 9131 This work was sponsored by Google. 9132 9133 *Steve Henson* 9134 9135 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9136 code and add additional score elements. Validate alternate CRL paths 9137 as part of the CRL checking and indicate a new error "CRL path validation 9138 error" in this case. Applications wanting additional details can use 9139 the verify callback and check the new "parent" field. If this is not 9140 NULL CRL path validation is taking place. Existing applications won't 9141 see this because it requires extended CRL support which is off by 9142 default. 9143 9144 This work was sponsored by Google. 9145 9146 *Steve Henson* 9147 9148 * Support for freshest CRL extension. 9149 9150 This work was sponsored by Google. 9151 9152 *Steve Henson* 9153 9154 * Initial indirect CRL support. Currently only supported in the CRLs 9155 passed directly and not via lookup. Process certificate issuer 9156 CRL entry extension and lookup CRL entries by bother issuer name 9157 and serial number. Check and process CRL issuer entry in IDP extension. 9158 9159 This work was sponsored by Google. 9160 9161 *Steve Henson* 9162 9163 * Add support for distinct certificate and CRL paths. The CRL issuer 9164 certificate is validated separately in this case. Only enabled if 9165 an extended CRL support flag is set: this flag will enable additional 9166 CRL functionality in future. 9167 9168 This work was sponsored by Google. 9169 9170 *Steve Henson* 9171 9172 * Add support for policy mappings extension. 9173 9174 This work was sponsored by Google. 9175 9176 *Steve Henson* 9177 9178 * Fixes to pathlength constraint, self issued certificate handling, 9179 policy processing to align with RFC3280 and PKITS tests. 9180 9181 This work was sponsored by Google. 9182 9183 *Steve Henson* 9184 9185 * Support for name constraints certificate extension. DN, email, DNS 9186 and URI types are currently supported. 9187 9188 This work was sponsored by Google. 9189 9190 *Steve Henson* 9191 9192 * To cater for systems that provide a pointer-based thread ID rather 9193 than numeric, deprecate the current numeric thread ID mechanism and 9194 replace it with a structure and associated callback type. This 9195 mechanism allows a numeric "hash" to be extracted from a thread ID in 9196 either case, and on platforms where pointers are larger than 'long', 9197 mixing is done to help ensure the numeric 'hash' is usable even if it 9198 can't be guaranteed unique. The default mechanism is to use "&errno" 9199 as a pointer-based thread ID to distinguish between threads. 9200 9201 Applications that want to provide their own thread IDs should now use 9202 CRYPTO_THREADID_set_callback() to register a callback that will call 9203 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9204 9205 Note that ERR_remove_state() is now deprecated, because it is tied 9206 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9207 to free the current thread's error state should be replaced by 9208 ERR_remove_thread_state(NULL). 9209 9210 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9211 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9212 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9213 application was previously providing a numeric thread callback that 9214 was inappropriate for distinguishing threads, then uniqueness might 9215 have been obtained with &errno that happened immediately in the 9216 intermediate development versions of OpenSSL; this is no longer the 9217 case, the numeric thread callback will now override the automatic use 9218 of &errno.) 9219 9220 *Geoff Thorpe, with help from Bodo Moeller* 9221 9222 * Initial support for different CRL issuing certificates. This covers a 9223 simple case where the self issued certificates in the chain exist and 9224 the real CRL issuer is higher in the existing chain. 9225 9226 This work was sponsored by Google. 9227 9228 *Steve Henson* 9229 9230 * Removed effectively defunct crypto/store from the build. 9231 9232 *Ben Laurie* 9233 9234 * Revamp of STACK to provide stronger type-checking. Still to come: 9235 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9236 ASN1_STRING, CONF_VALUE. 9237 9238 *Ben Laurie* 9239 9240 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9241 RAM on SSL connections. This option can save about 34k per idle SSL. 9242 9243 *Nick Mathewson* 9244 9245 * Revamp of LHASH to provide stronger type-checking. Still to come: 9246 STACK, TXT_DB, bsearch, qsort. 9247 9248 *Ben Laurie* 9249 9250 * Initial support for Cryptographic Message Syntax (aka CMS) based 9251 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9252 support for data, signedData, compressedData, digestedData and 9253 encryptedData, envelopedData types included. Scripts to check against 9254 RFC4134 examples draft and interop and consistency checks of many 9255 content types and variants. 9256 9257 *Steve Henson* 9258 9259 * Add options to enc utility to support use of zlib compression BIO. 9260 9261 *Steve Henson* 9262 9263 * Extend mk1mf to support importing of options and assembly language 9264 files from Configure script, currently only included in VC-WIN32. 9265 The assembly language rules can now optionally generate the source 9266 files from the associated perl scripts. 9267 9268 *Steve Henson* 9269 9270 * Implement remaining functionality needed to support GOST ciphersuites. 9271 Interop testing has been performed using CryptoPro implementations. 9272 9273 *Victor B. Wagner <vitus@cryptocom.ru>* 9274 9275 * s390x assembler pack. 9276 9277 *Andy Polyakov* 9278 9279 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9280 "family." 9281 9282 *Andy Polyakov* 9283 9284 * Implement Opaque PRF Input TLS extension as specified in 9285 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9286 official specification yet and no extension type assignment by 9287 IANA exists, this extension (for now) will have to be explicitly 9288 enabled when building OpenSSL by providing the extension number 9289 to use. For example, specify an option 9290 9291 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9292 9293 to the "config" or "Configure" script to enable the extension, 9294 assuming extension number 0x9527 (which is a completely arbitrary 9295 and unofficial assignment based on the MD5 hash of the Internet 9296 Draft). Note that by doing so, you potentially lose 9297 interoperability with other TLS implementations since these might 9298 be using the same extension number for other purposes. 9299 9300 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9301 opaque PRF input value to use in the handshake. This will create 9302 an internal copy of the length-'len' string at 'src', and will 9303 return non-zero for success. 9304 9305 To get more control and flexibility, provide a callback function 9306 by using 9307 9308 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9309 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9310 9311 where 9312 9313 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9314 void *arg; 9315 9316 Callback function 'cb' will be called in handshakes, and is 9317 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9318 Argument 'arg' is for application purposes (the value as given to 9319 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9320 be provided to the callback function). The callback function 9321 has to return non-zero to report success: usually 1 to use opaque 9322 PRF input just if possible, or 2 to enforce use of the opaque PRF 9323 input. In the latter case, the library will abort the handshake 9324 if opaque PRF input is not successfully negotiated. 9325 9326 Arguments 'peerinput' and 'len' given to the callback function 9327 will always be NULL and 0 in the case of a client. A server will 9328 see the client's opaque PRF input through these variables if 9329 available (NULL and 0 otherwise). Note that if the server 9330 provides an opaque PRF input, the length must be the same as the 9331 length of the client's opaque PRF input. 9332 9333 Note that the callback function will only be called when creating 9334 a new session (session resumption can resume whatever was 9335 previously negotiated), and will not be called in SSL 2.0 9336 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9337 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9338 for applications that need to enforce opaque PRF input. 9339 9340 *Bodo Moeller* 9341 9342 * Update ssl code to support digests other than SHA1+MD5 for handshake 9343 MAC. 9344 9345 *Victor B. Wagner <vitus@cryptocom.ru>* 9346 9347 * Add RFC4507 support to OpenSSL. This includes the corrections in 9348 RFC4507bis. The encrypted ticket format is an encrypted encoded 9349 SSL_SESSION structure, that way new session features are automatically 9350 supported. 9351 9352 If a client application caches session in an SSL_SESSION structure 9353 support is transparent because tickets are now stored in the encoded 9354 SSL_SESSION. 9355 9356 The SSL_CTX structure automatically generates keys for ticket 9357 protection in servers so again support should be possible 9358 with no application modification. 9359 9360 If a client or server wishes to disable RFC4507 support then the option 9361 SSL_OP_NO_TICKET can be set. 9362 9363 Add a TLS extension debugging callback to allow the contents of any client 9364 or server extensions to be examined. 9365 9366 This work was sponsored by Google. 9367 9368 *Steve Henson* 9369 9370 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9371 OpenSSL should now compile cleanly on gcc 4.2 9372 9373 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9374 9375 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9376 support including streaming MAC support: this is required for GOST 9377 ciphersuite support. 9378 9379 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9380 9381 * Add option -stream to use PKCS#7 streaming in smime utility. New 9382 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9383 to output in BER and PEM format. 9384 9385 *Steve Henson* 9386 9387 * Experimental support for use of HMAC via EVP_PKEY interface. This 9388 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9389 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9390 ENGINE support for HMAC keys which are unextractable. New -mac and 9391 -macopt options to dgst utility. 9392 9393 *Steve Henson* 9394 9395 * New option -sigopt to dgst utility. Update dgst to use 9396 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9397 alternative signing parameters such as X9.31 or PSS in the dgst 9398 utility. 9399 9400 *Steve Henson* 9401 9402 * Change ssl_cipher_apply_rule(), the internal function that does 9403 the work each time a ciphersuite string requests enabling 9404 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9405 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9406 the order of disabled ciphersuites such that those ciphersuites 9407 that most recently went from enabled to disabled not only stay 9408 in order with respect to each other, but also have higher priority 9409 than other disabled ciphersuites the next time ciphersuites are 9410 enabled again. 9411 9412 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9413 the same ciphersuites as with "HIGH" alone, but in a specific 9414 order where the PSK ciphersuites come first (since they are the 9415 most recently disabled ciphersuites when "HIGH" is parsed). 9416 9417 Also, change ssl_create_cipher_list() (using this new 9418 functionality) such that between otherwise identical 9419 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9420 the default order. 9421 9422 *Bodo Moeller* 9423 9424 * Change ssl_create_cipher_list() so that it automatically 9425 arranges the ciphersuites in reasonable order before starting 9426 to process the rule string. Thus, the definition for "DEFAULT" 9427 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9428 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9429 This makes it much easier to arrive at a reasonable default order 9430 in applications for which anonymous ciphers are OK (meaning 9431 that you can't actually use DEFAULT). 9432 9433 *Bodo Moeller; suggested by Victor Duchovni* 9434 9435 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9436 processing) into multiple integers instead of setting 9437 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9438 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9439 (These masks as well as the individual bit definitions are hidden 9440 away into the non-exported interface ssl/ssl_locl.h, so this 9441 change to the definition of the SSL_CIPHER structure shouldn't 9442 affect applications.) This give us more bits for each of these 9443 categories, so there is no longer a need to coagulate AES128 and 9444 AES256 into a single algorithm bit, and to coagulate Camellia128 9445 and Camellia256 into a single algorithm bit, which has led to all 9446 kinds of kludges. 9447 9448 Thus, among other things, the kludge introduced in 0.9.7m and 9449 0.9.8e for masking out AES256 independently of AES128 or masking 9450 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9451 9452 With the change, we also introduce new ciphersuite aliases that 9453 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9454 "CAMELLIA256". 9455 9456 *Bodo Moeller* 9457 9458 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9459 Use the leftmost N bytes of the signature input if the input is 9460 larger than the prime q (with N being the size in bytes of q). 9461 9462 *Nils Larsch* 9463 9464 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9465 it yet and it is largely untested. 9466 9467 *Steve Henson* 9468 9469 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9470 9471 *Nils Larsch* 9472 9473 * Initial incomplete changes to avoid need for function casts in OpenSSL 9474 some compilers (gcc 4.2 and later) reject their use. Safestack is 9475 reimplemented. Update ASN1 to avoid use of legacy functions. 9476 9477 *Steve Henson* 9478 9479 * Win32/64 targets are linked with Winsock2. 9480 9481 *Andy Polyakov* 9482 9483 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9484 to external functions. This can be used to increase CRL handling 9485 efficiency especially when CRLs are very large by (for example) storing 9486 the CRL revoked certificates in a database. 9487 9488 *Steve Henson* 9489 9490 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9491 new CRLs added to a directory can be used. New command line option 9492 -verify_return_error to s_client and s_server. This causes real errors 9493 to be returned by the verify callback instead of carrying on no matter 9494 what. This reflects the way a "real world" verify callback would behave. 9495 9496 *Steve Henson* 9497 9498 * GOST engine, supporting several GOST algorithms and public key formats. 9499 Kindly donated by Cryptocom. 9500 9501 *Cryptocom* 9502 9503 * Partial support for Issuing Distribution Point CRL extension. CRLs 9504 partitioned by DP are handled but no indirect CRL or reason partitioning 9505 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9506 selected via a scoring technique which handles IDP and AKID in CRLs. 9507 9508 *Steve Henson* 9509 9510 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9511 will ultimately be used for all verify operations: this will remove the 9512 X509_STORE dependency on certificate verification and allow alternative 9513 lookup methods. X509_STORE based implementations of these two callbacks. 9514 9515 *Steve Henson* 9516 9517 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9518 Modify get_crl() to find a valid (unexpired) CRL if possible. 9519 9520 *Steve Henson* 9521 9522 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9523 this would be called X509_CRL_cmp() but that name is already used by 9524 a function that just compares CRL issuer names. Cache several CRL 9525 extensions in X509_CRL structure and cache CRLDP in X509. 9526 9527 *Steve Henson* 9528 9529 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9530 this maps equivalent X509_NAME structures into a consistent structure. 9531 Name comparison can then be performed rapidly using memcmp(). 9532 9533 *Steve Henson* 9534 9535 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9536 utility. 9537 9538 *Steve Henson* 9539 9540 * Allow digests to supply their own micalg string for S/MIME type using 9541 the ctrl EVP_MD_CTRL_MICALG. 9542 9543 *Steve Henson* 9544 9545 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9546 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9547 ctrl. It can then customise the structure before and/or after signing 9548 if necessary. 9549 9550 *Steve Henson* 9551 9552 * New function OBJ_add_sigid() to allow application defined signature OIDs 9553 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9554 to free up any added signature OIDs. 9555 9556 *Steve Henson* 9557 9558 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9559 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9560 digest and cipher tables. New options added to openssl utility: 9561 list-message-digest-algorithms and list-cipher-algorithms. 9562 9563 *Steve Henson* 9564 9565 * Change the array representation of binary polynomials: the list 9566 of degrees of non-zero coefficients is now terminated with -1. 9567 Previously it was terminated with 0, which was also part of the 9568 value; thus, the array representation was not applicable to 9569 polynomials where t^0 has coefficient zero. This change makes 9570 the array representation useful in a more general context. 9571 9572 *Douglas Stebila* 9573 9574 * Various modifications and fixes to SSL/TLS cipher string 9575 handling. For ECC, the code now distinguishes between fixed ECDH 9576 with RSA certificates on the one hand and with ECDSA certificates 9577 on the other hand, since these are separate ciphersuites. The 9578 unused code for Fortezza ciphersuites has been removed. 9579 9580 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9581 (not "ECDHE"). For consistency with the code for DH 9582 certificates, use of ECDH certificates is now considered ECDH 9583 authentication, not RSA or ECDSA authentication (the latter is 9584 merely the CA's signing algorithm and not actively used in the 9585 protocol). 9586 9587 The temporary ciphersuite alias "ECCdraft" is no longer 9588 available, and ECC ciphersuites are no longer excluded from "ALL" 9589 and "DEFAULT". The following aliases now exist for RFC 4492 9590 ciphersuites, most of these by analogy with the DH case: 9591 9592 kECDHr - ECDH cert, signed with RSA 9593 kECDHe - ECDH cert, signed with ECDSA 9594 kECDH - ECDH cert (signed with either RSA or ECDSA) 9595 kEECDH - ephemeral ECDH 9596 ECDH - ECDH cert or ephemeral ECDH 9597 9598 aECDH - ECDH cert 9599 aECDSA - ECDSA cert 9600 ECDSA - ECDSA cert 9601 9602 AECDH - anonymous ECDH 9603 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9604 9605 *Bodo Moeller* 9606 9607 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9608 Use correct micalg parameters depending on digest(s) in signed message. 9609 9610 *Steve Henson* 9611 9612 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9613 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9614 9615 *Steve Henson* 9616 9617 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9618 an engine to register a method. Add ENGINE lookups for methods and 9619 functional reference processing. 9620 9621 *Steve Henson* 9622 9623 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9624 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9625 process. 9626 9627 *Steve Henson* 9628 9629 * New -resign option to smime utility. This adds one or more signers 9630 to an existing PKCS#7 signedData structure. Also -md option to use an 9631 alternative message digest algorithm for signing. 9632 9633 *Steve Henson* 9634 9635 * Tidy up PKCS#7 routines and add new functions to make it easier to 9636 create PKCS7 structures containing multiple signers. Update smime 9637 application to support multiple signers. 9638 9639 *Steve Henson* 9640 9641 * New -macalg option to pkcs12 utility to allow setting of an alternative 9642 digest MAC. 9643 9644 *Steve Henson* 9645 9646 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9647 Reorganize PBE internals to lookup from a static table using NIDs, 9648 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9649 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9650 PRF which will be automatically used with PBES2. 9651 9652 *Steve Henson* 9653 9654 * Replace the algorithm specific calls to generate keys in "req" with the 9655 new API. 9656 9657 *Steve Henson* 9658 9659 * Update PKCS#7 enveloped data routines to use new API. This is now 9660 supported by any public key method supporting the encrypt operation. A 9661 ctrl is added to allow the public key algorithm to examine or modify 9662 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9663 a no op. 9664 9665 *Steve Henson* 9666 9667 * Add a ctrl to asn1 method to allow a public key algorithm to express 9668 a default digest type to use. In most cases this will be SHA1 but some 9669 algorithms (such as GOST) need to specify an alternative digest. The 9670 return value indicates how strong the preference is 1 means optional and 9671 2 is mandatory (that is it is the only supported type). Modify 9672 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9673 use the default md. Update openssl utilities to use the default digest 9674 type for signing if it is not explicitly indicated. 9675 9676 *Steve Henson* 9677 9678 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9679 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9680 signing method from the key type. This effectively removes the link 9681 between digests and public key types. 9682 9683 *Steve Henson* 9684 9685 * Add an OID cross reference table and utility functions. Its purpose is to 9686 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9687 rsaEncryption. This will allow some of the algorithm specific hackery 9688 needed to use the correct OID to be removed. 9689 9690 *Steve Henson* 9691 9692 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9693 structures for PKCS7_sign(). They are now set up by the relevant public 9694 key ASN1 method. 9695 9696 *Steve Henson* 9697 9698 * Add provisional EC pkey method with support for ECDSA and ECDH. 9699 9700 *Steve Henson* 9701 9702 * Add support for key derivation (agreement) in the API, DH method and 9703 pkeyutl. 9704 9705 *Steve Henson* 9706 9707 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9708 public and private key formats. As a side effect these add additional 9709 command line functionality not previously available: DSA signatures can be 9710 generated and verified using pkeyutl and DH key support and generation in 9711 pkey, genpkey. 9712 9713 *Steve Henson* 9714 9715 * BeOS support. 9716 9717 *Oliver Tappe <zooey@hirschkaefer.de>* 9718 9719 * New make target "install_html_docs" installs HTML renditions of the 9720 manual pages. 9721 9722 *Oliver Tappe <zooey@hirschkaefer.de>* 9723 9724 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9725 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9726 support key and parameter generation and add initial key generation 9727 functionality for RSA. 9728 9729 *Steve Henson* 9730 9731 * Add functions for main EVP_PKEY_method operations. The undocumented 9732 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9733 `EVP_PKEY_{encrypt,decrypt}_old`. 9734 9735 *Steve Henson* 9736 9737 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9738 key API, doesn't do much yet. 9739 9740 *Steve Henson* 9741 9742 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9743 public key algorithms. New option to openssl utility: 9744 "list-public-key-algorithms" to print out info. 9745 9746 *Steve Henson* 9747 9748 * Implement the Supported Elliptic Curves Extension for 9749 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9750 9751 *Douglas Stebila* 9752 9753 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9754 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 9755 9756 *Steve Henson* 9757 9758 * New utilities pkey and pkeyparam. These are similar to algorithm specific 9759 utilities such as rsa, dsa, dsaparam etc except they process any key 9760 type. 9761 9762 *Steve Henson* 9763 9764 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 9765 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 9766 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 9767 structure. 9768 9769 *Steve Henson* 9770 9771 * Initial support for pluggable public key ASN1. 9772 De-spaghettify the public key ASN1 handling. Move public and private 9773 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 9774 algorithm specific handling to a single module within the relevant 9775 algorithm directory. Add functions to allow (near) opaque processing 9776 of public and private key structures. 9777 9778 *Steve Henson* 9779 9780 * Implement the Supported Point Formats Extension for 9781 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9782 9783 *Douglas Stebila* 9784 9785 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 9786 for the psk identity [hint] and the psk callback functions to the 9787 SSL_SESSION, SSL and SSL_CTX structure. 9788 9789 New ciphersuites: 9790 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 9791 PSK-AES256-CBC-SHA 9792 9793 New functions: 9794 SSL_CTX_use_psk_identity_hint 9795 SSL_get_psk_identity_hint 9796 SSL_get_psk_identity 9797 SSL_use_psk_identity_hint 9798 9799 *Mika Kousa and Pasi Eronen of Nokia Corporation* 9800 9801 * Add RFC 3161 compliant time stamp request creation, response generation 9802 and response verification functionality. 9803 9804 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 9805 9806 * Add initial support for TLS extensions, specifically for the server_name 9807 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 9808 have new members for a host name. The SSL data structure has an 9809 additional member `SSL_CTX *initial_ctx` so that new sessions can be 9810 stored in that context to allow for session resumption, even after the 9811 SSL has been switched to a new SSL_CTX in reaction to a client's 9812 server_name extension. 9813 9814 New functions (subject to change): 9815 9816 SSL_get_servername() 9817 SSL_get_servername_type() 9818 SSL_set_SSL_CTX() 9819 9820 New CTRL codes and macros (subject to change): 9821 9822 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 9823 - SSL_CTX_set_tlsext_servername_callback() 9824 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 9825 - SSL_CTX_set_tlsext_servername_arg() 9826 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 9827 9828 openssl s_client has a new '-servername ...' option. 9829 9830 openssl s_server has new options '-servername_host ...', '-cert2 ...', 9831 '-key2 ...', '-servername_fatal' (subject to change). This allows 9832 testing the HostName extension for a specific single host name ('-cert' 9833 and '-key' remain fallbacks for handshakes without HostName 9834 negotiation). If the unrecognized_name alert has to be sent, this by 9835 default is a warning; it becomes fatal with the '-servername_fatal' 9836 option. 9837 9838 *Peter Sylvester, Remy Allais, Christophe Renou* 9839 9840 * Whirlpool hash implementation is added. 9841 9842 *Andy Polyakov* 9843 9844 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 9845 bn(64,32). Because of instruction set limitations it doesn't have 9846 any negative impact on performance. This was done mostly in order 9847 to make it possible to share assembler modules, such as bn_mul_mont 9848 implementations, between 32- and 64-bit builds without hassle. 9849 9850 *Andy Polyakov* 9851 9852 * Move code previously exiled into file crypto/ec/ec2_smpt.c 9853 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 9854 macro. 9855 9856 *Bodo Moeller* 9857 9858 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 9859 dedicated Montgomery multiplication procedure, is introduced. 9860 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 9861 "64-bit" performance on certain 32-bit targets. 9862 9863 *Andy Polyakov* 9864 9865 * New option SSL_OP_NO_COMP to disable use of compression selectively 9866 in SSL structures. New SSL ctrl to set maximum send fragment size. 9867 Save memory by setting the I/O buffer sizes dynamically instead of 9868 using the maximum available value. 9869 9870 *Steve Henson* 9871 9872 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 9873 in addition to the text details. 9874 9875 *Bodo Moeller* 9876 9877 * Very, very preliminary EXPERIMENTAL support for printing of general 9878 ASN1 structures. This currently produces rather ugly output and doesn't 9879 handle several customised structures at all. 9880 9881 *Steve Henson* 9882 9883 * Integrated support for PVK file format and some related formats such 9884 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 9885 these in the 'rsa' and 'dsa' utilities. 9886 9887 *Steve Henson* 9888 9889 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 9890 9891 *Steve Henson* 9892 9893 * Remove the ancient ASN1_METHOD code. This was only ever used in one 9894 place for the (very old) "NETSCAPE" format certificates which are now 9895 handled using new ASN1 code equivalents. 9896 9897 *Steve Henson* 9898 9899 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 9900 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 9901 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 9902 9903 *Nils Larsch* 9904 9905 * Modify CRL distribution points extension code to print out previously 9906 unsupported fields. Enhance extension setting code to allow setting of 9907 all fields. 9908 9909 *Steve Henson* 9910 9911 * Add print and set support for Issuing Distribution Point CRL extension. 9912 9913 *Steve Henson* 9914 9915 * Change 'Configure' script to enable Camellia by default. 9916 9917 *NTT* 9918 9919OpenSSL 0.9.x 9920------------- 9921 9922### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 9923 9924 * When rejecting SSL/TLS records due to an incorrect version number, never 9925 update s->server with a new major version number. As of 9926 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 9927 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 9928 the previous behavior could result in a read attempt at NULL when 9929 receiving specific incorrect SSL/TLS records once record payload 9930 protection is active. ([CVE-2010-0740]) 9931 9932 *Bodo Moeller, Adam Langley <agl@chromium.org>* 9933 9934 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 9935 could be crashed if the relevant tables were not present (e.g. chrooted). 9936 9937 *Tomas Hoger <thoger@redhat.com>* 9938 9939### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 9940 9941 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 9942 9943 *Martin Olsson, Neel Mehta* 9944 9945 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 9946 accommodate for stack sorting, always a write lock!). 9947 9948 *Bodo Moeller* 9949 9950 * On some versions of WIN32 Heap32Next is very slow. This can cause 9951 excessive delays in the RAND_poll(): over a minute. As a workaround 9952 include a time check in the inner Heap32Next loop too. 9953 9954 *Steve Henson* 9955 9956 * The code that handled flushing of data in SSL/TLS originally used the 9957 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 9958 the problem outlined in PR#1949. The fix suggested there however can 9959 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 9960 of Apache). So instead simplify the code to flush unconditionally. 9961 This should be fine since flushing with no data to flush is a no op. 9962 9963 *Steve Henson* 9964 9965 * Handle TLS versions 2.0 and later properly and correctly use the 9966 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 9967 off ancient servers have a habit of sticking around for a while... 9968 9969 *Steve Henson* 9970 9971 * Modify compression code so it frees up structures without using the 9972 ex_data callbacks. This works around a problem where some applications 9973 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 9974 restarting) then use compression (e.g. SSL with compression) later. 9975 This results in significant per-connection memory leaks and 9976 has caused some security issues including CVE-2008-1678 and 9977 CVE-2009-4355. 9978 9979 *Steve Henson* 9980 9981 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 9982 change when encrypting or decrypting. 9983 9984 *Bodo Moeller* 9985 9986 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 9987 connect and renegotiate with servers which do not support RI. 9988 Until RI is more widely deployed this option is enabled by default. 9989 9990 *Steve Henson* 9991 9992 * Add "missing" ssl ctrls to clear options and mode. 9993 9994 *Steve Henson* 9995 9996 * If client attempts to renegotiate and doesn't support RI respond with 9997 a no_renegotiation alert as required by RFC5746. Some renegotiating 9998 TLS clients will continue a connection gracefully when they receive 9999 the alert. Unfortunately OpenSSL mishandled this alert and would hang 10000 waiting for a server hello which it will never receive. Now we treat a 10001 received no_renegotiation alert as a fatal error. This is because 10002 applications requesting a renegotiation might well expect it to succeed 10003 and would have no code in place to handle the server denying it so the 10004 only safe thing to do is to terminate the connection. 10005 10006 *Steve Henson* 10007 10008 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 10009 peer supports secure renegotiation and 0 otherwise. Print out peer 10010 renegotiation support in s_client/s_server. 10011 10012 *Steve Henson* 10013 10014 * Replace the highly broken and deprecated SPKAC certification method with 10015 the updated NID creation version. This should correctly handle UTF8. 10016 10017 *Steve Henson* 10018 10019 * Implement RFC5746. Re-enable renegotiation but require the extension 10020 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 10021 turns out to be a bad idea. It has been replaced by 10022 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 10023 SSL_CTX_set_options(). This is really not recommended unless you 10024 know what you are doing. 10025 10026 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 10027 10028 * Fixes to stateless session resumption handling. Use initial_ctx when 10029 issuing and attempting to decrypt tickets in case it has changed during 10030 servername handling. Use a non-zero length session ID when attempting 10031 stateless session resumption: this makes it possible to determine if 10032 a resumption has occurred immediately after receiving server hello 10033 (several places in OpenSSL subtly assume this) instead of later in 10034 the handshake. 10035 10036 *Steve Henson* 10037 10038 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 10039 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 10040 fixes for a few places where the return code is not checked 10041 correctly. 10042 10043 *Julia Lawall <julia@diku.dk>* 10044 10045 * Add --strict-warnings option to Configure script to include devteam 10046 warnings in other configurations. 10047 10048 *Steve Henson* 10049 10050 * Add support for --libdir option and LIBDIR variable in makefiles. This 10051 makes it possible to install openssl libraries in locations which 10052 have names other than "lib", for example "/usr/lib64" which some 10053 systems need. 10054 10055 *Steve Henson, based on patch from Jeremy Utley* 10056 10057 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 10058 X690 8.9.12 and can produce some misleading textual output of OIDs. 10059 10060 *Steve Henson, reported by Dan Kaminsky* 10061 10062 * Delete MD2 from algorithm tables. This follows the recommendation in 10063 several standards that it is not used in new applications due to 10064 several cryptographic weaknesses. For binary compatibility reasons 10065 the MD2 API is still compiled in by default. 10066 10067 *Steve Henson* 10068 10069 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 10070 and restored. 10071 10072 *Steve Henson* 10073 10074 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 10075 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 10076 clash. 10077 10078 *Guenter <lists@gknw.net>* 10079 10080 * Fix the server certificate chain building code to use X509_verify_cert(), 10081 it used to have an ad-hoc builder which was unable to cope with anything 10082 other than a simple chain. 10083 10084 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 10085 10086 * Don't check self signed certificate signatures in X509_verify_cert() 10087 by default (a flag can override this): it just wastes time without 10088 adding any security. As a useful side effect self signed root CAs 10089 with non-FIPS digests are now usable in FIPS mode. 10090 10091 *Steve Henson* 10092 10093 * In dtls1_process_out_of_seq_message() the check if the current message 10094 is already buffered was missing. For every new message was memory 10095 allocated, allowing an attacker to perform an denial of service attack 10096 with sending out of seq handshake messages until there is no memory 10097 left. Additionally every future message was buffered, even if the 10098 sequence number made no sense and would be part of another handshake. 10099 So only messages with sequence numbers less than 10 in advance will be 10100 buffered. ([CVE-2009-1378]) 10101 10102 *Robin Seggelmann, discovered by Daniel Mentz* 10103 10104 * Records are buffered if they arrive with a future epoch to be 10105 processed after finishing the corresponding handshake. There is 10106 currently no limitation to this buffer allowing an attacker to perform 10107 a DOS attack with sending records with future epochs until there is no 10108 memory left. This patch adds the pqueue_size() function to determine 10109 the size of a buffer and limits the record buffer to 100 entries. 10110 ([CVE-2009-1377]) 10111 10112 *Robin Seggelmann, discovered by Daniel Mentz* 10113 10114 * Keep a copy of frag->msg_header.frag_len so it can be used after the 10115 parent structure is freed. ([CVE-2009-1379]) 10116 10117 *Daniel Mentz* 10118 10119 * Handle non-blocking I/O properly in SSL_shutdown() call. 10120 10121 *Darryl Miles <darryl-mailinglists@netbauds.net>* 10122 10123 * Add `2.5.4.*` OIDs 10124 10125 *Ilya O. <vrghost@gmail.com>* 10126 10127### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 10128 10129 * Disable renegotiation completely - this fixes a severe security 10130 problem ([CVE-2009-3555]) at the cost of breaking all 10131 renegotiation. Renegotiation can be re-enabled by setting 10132 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10133 run-time. This is really not recommended unless you know what 10134 you're doing. 10135 10136 *Ben Laurie* 10137 10138### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10139 10140 * Don't set val to NULL when freeing up structures, it is freed up by 10141 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10142 zeroing past the valid field. ([CVE-2009-0789]) 10143 10144 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10145 10146 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10147 checked correctly. This would allow some invalid signed attributes to 10148 appear to verify correctly. ([CVE-2009-0591]) 10149 10150 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10151 10152 * Reject UniversalString and BMPString types with invalid lengths. This 10153 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10154 a legal length. ([CVE-2009-0590]) 10155 10156 *Steve Henson* 10157 10158 * Set S/MIME signing as the default purpose rather than setting it 10159 unconditionally. This allows applications to override it at the store 10160 level. 10161 10162 *Steve Henson* 10163 10164 * Permit restricted recursion of ASN1 strings. This is needed in practice 10165 to handle some structures. 10166 10167 *Steve Henson* 10168 10169 * Improve efficiency of mem_gets: don't search whole buffer each time 10170 for a '\n' 10171 10172 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10173 10174 * New -hex option for openssl rand. 10175 10176 *Matthieu Herrb* 10177 10178 * Print out UTF8String and NumericString when parsing ASN1. 10179 10180 *Steve Henson* 10181 10182 * Support NumericString type for name components. 10183 10184 *Steve Henson* 10185 10186 * Allow CC in the environment to override the automatically chosen 10187 compiler. Note that nothing is done to ensure flags work with the 10188 chosen compiler. 10189 10190 *Ben Laurie* 10191 10192### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10193 10194 * Properly check EVP_VerifyFinal() and similar return values 10195 ([CVE-2008-5077]). 10196 10197 *Ben Laurie, Bodo Moeller, Google Security Team* 10198 10199 * Enable TLS extensions by default. 10200 10201 *Ben Laurie* 10202 10203 * Allow the CHIL engine to be loaded, whether the application is 10204 multithreaded or not. (This does not release the developer from the 10205 obligation to set up the dynamic locking callbacks.) 10206 10207 *Sander Temme <sander@temme.net>* 10208 10209 * Use correct exit code if there is an error in dgst command. 10210 10211 *Steve Henson; problem pointed out by Roland Dirlewanger* 10212 10213 * Tweak Configure so that you need to say "experimental-jpake" to enable 10214 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10215 10216 *Bodo Moeller* 10217 10218 * Add experimental JPAKE support, including demo authentication in 10219 s_client and s_server. 10220 10221 *Ben Laurie* 10222 10223 * Set the comparison function in v3_addr_canonize(). 10224 10225 *Rob Austein <sra@hactrn.net>* 10226 10227 * Add support for XMPP STARTTLS in s_client. 10228 10229 *Philip Paeps <philip@freebsd.org>* 10230 10231 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10232 to ensure that even with this option, only ciphersuites in the 10233 server's preference list will be accepted. (Note that the option 10234 applies only when resuming a session, so the earlier behavior was 10235 just about the algorithm choice for symmetric cryptography.) 10236 10237 *Bodo Moeller* 10238 10239### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10240 10241 * Fix NULL pointer dereference if a DTLS server received 10242 ChangeCipherSpec as first record ([CVE-2009-1386]). 10243 10244 *PR #1679* 10245 10246 * Fix a state transition in s3_srvr.c and d1_srvr.c 10247 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10248 10249 *Nagendra Modadugu* 10250 10251 * The fix in 0.9.8c that supposedly got rid of unsafe 10252 double-checked locking was incomplete for RSA blinding, 10253 addressing just one layer of what turns out to have been 10254 doubly unsafe triple-checked locking. 10255 10256 So now fix this for real by retiring the MONT_HELPER macro 10257 in crypto/rsa/rsa_eay.c. 10258 10259 *Bodo Moeller; problem pointed out by Marius Schilder* 10260 10261 * Various precautionary measures: 10262 10263 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10264 10265 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10266 (NB: This would require knowledge of the secret session ticket key 10267 to exploit, in which case you'd be SOL either way.) 10268 10269 - Change bn_nist.c so that it will properly handle input BIGNUMs 10270 outside the expected range. 10271 10272 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10273 builds. 10274 10275 *Neel Mehta, Bodo Moeller* 10276 10277 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10278 the load fails. Useful for distros. 10279 10280 *Ben Laurie and the FreeBSD team* 10281 10282 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10283 10284 *Steve Henson* 10285 10286 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10287 10288 *Huang Ying* 10289 10290 * Expand ENGINE to support engine supplied SSL client certificate functions. 10291 10292 This work was sponsored by Logica. 10293 10294 *Steve Henson* 10295 10296 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10297 keystores. Support for SSL/TLS client authentication too. 10298 Not compiled unless enable-capieng specified to Configure. 10299 10300 This work was sponsored by Logica. 10301 10302 *Steve Henson* 10303 10304 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10305 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10306 attribute creation routines such as certificate requests and PKCS#12 10307 files. 10308 10309 *Steve Henson* 10310 10311### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10312 10313 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10314 handshake which could lead to a client crash as found using the 10315 Codenomicon TLS test suite ([CVE-2008-1672]) 10316 10317 *Steve Henson, Mark Cox* 10318 10319 * Fix double free in TLS server name extensions which could lead to 10320 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10321 10322 *Joe Orton* 10323 10324 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10325 10326 Clear the error queue to ensure that error entries left from 10327 older function calls do not interfere with the correct operation. 10328 10329 *Lutz Jaenicke, Erik de Castro Lopo* 10330 10331 * Remove root CA certificates of commercial CAs: 10332 10333 The OpenSSL project does not recommend any specific CA and does not 10334 have any policy with respect to including or excluding any CA. 10335 Therefore it does not make any sense to ship an arbitrary selection 10336 of root CA certificates with the OpenSSL software. 10337 10338 *Lutz Jaenicke* 10339 10340 * RSA OAEP patches to fix two separate invalid memory reads. 10341 The first one involves inputs when 'lzero' is greater than 10342 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10343 before the beginning of from). The second one involves inputs where 10344 the 'db' section contains nothing but zeroes (there is a one-byte 10345 invalid read after the end of 'db'). 10346 10347 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10348 10349 * Partial backport from 0.9.9-dev: 10350 10351 Introduce bn_mul_mont (dedicated Montgomery multiplication 10352 procedure) as a candidate for BIGNUM assembler implementation. 10353 While 0.9.9-dev uses assembler for various architectures, only 10354 x86_64 is available by default here in the 0.9.8 branch, and 10355 32-bit x86 is available through a compile-time setting. 10356 10357 To try the 32-bit x86 assembler implementation, use Configure 10358 option "enable-montasm" (which exists only for this backport). 10359 10360 As "enable-montasm" for 32-bit x86 disclaims code stability 10361 anyway, in this constellation we activate additional code 10362 backported from 0.9.9-dev for further performance improvements, 10363 namely BN_from_montgomery_word. (To enable this otherwise, 10364 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10365 10366 *Andy Polyakov (backport partially by Bodo Moeller)* 10367 10368 * Add TLS session ticket callback. This allows an application to set 10369 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10370 values. This is useful for key rollover for example where several key 10371 sets may exist with different names. 10372 10373 *Steve Henson* 10374 10375 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10376 This was broken until now in 0.9.8 releases, such that the only way 10377 a registered ENGINE could be used (assuming it initialises 10378 successfully on the host) was to explicitly set it as the default 10379 for the relevant algorithms. This is in contradiction with 0.9.7 10380 behaviour and the documentation. With this fix, when an ENGINE is 10381 registered into a given algorithm's table of implementations, the 10382 'uptodate' flag is reset so that auto-discovery will be used next 10383 time a new context for that algorithm attempts to select an 10384 implementation. 10385 10386 *Ian Lister (tweaked by Geoff Thorpe)* 10387 10388 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10389 implementation in the following ways: 10390 10391 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10392 hard coded. 10393 10394 Lack of BER streaming support means one pass streaming processing is 10395 only supported if data is detached: setting the streaming flag is 10396 ignored for embedded content. 10397 10398 CMS support is disabled by default and must be explicitly enabled 10399 with the enable-cms configuration option. 10400 10401 *Steve Henson* 10402 10403 * Update the GMP engine glue to do direct copies between BIGNUM and 10404 mpz_t when openssl and GMP use the same limb size. Otherwise the 10405 existing "conversion via a text string export" trick is still used. 10406 10407 *Paul Sheer <paulsheer@gmail.com>* 10408 10409 * Zlib compression BIO. This is a filter BIO which compressed and 10410 uncompresses any data passed through it. 10411 10412 *Steve Henson* 10413 10414 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10415 RFC3394 compatible AES key wrapping. 10416 10417 *Steve Henson* 10418 10419 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10420 sets string data without copying. X509_ALGOR_set0() and 10421 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10422 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10423 from an X509_ATTRIBUTE structure optionally checking it occurs only 10424 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10425 data. 10426 10427 *Steve Henson* 10428 10429 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10430 to get the expected BN_FLG_CONSTTIME behavior. 10431 10432 *Bodo Moeller (Google)* 10433 10434 * Netware support: 10435 10436 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10437 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10438 - added some more tests to do_tests.pl 10439 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10440 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10441 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10442 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10443 - various changes to netware.pl to enable gcc-cross builds on Win32 10444 platform 10445 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10446 - various changes to fix missing prototype warnings 10447 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10448 - added AES, WHIRLPOOL and CPUID assembler code to build files 10449 - added missing AES assembler make rules to mk1mf.pl 10450 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10451 10452 *Guenter Knauf <eflash@gmx.net>* 10453 10454 * Implement certificate status request TLS extension defined in RFC3546. 10455 A client can set the appropriate parameters and receive the encoded 10456 OCSP response via a callback. A server can query the supplied parameters 10457 and set the encoded OCSP response in the callback. Add simplified examples 10458 to s_client and s_server. 10459 10460 *Steve Henson* 10461 10462### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10463 10464 * Fix various bugs: 10465 + Binary incompatibility of ssl_ctx_st structure 10466 + DTLS interoperation with non-compliant servers 10467 + Don't call get_session_cb() without proposed session 10468 + Fix ia64 assembler code 10469 10470 *Andy Polyakov, Steve Henson* 10471 10472### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10473 10474 * DTLS Handshake overhaul. There were longstanding issues with 10475 OpenSSL DTLS implementation, which were making it impossible for 10476 RFC 4347 compliant client to communicate with OpenSSL server. 10477 Unfortunately just fixing these incompatibilities would "cut off" 10478 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10479 server keeps tolerating non RFC compliant syntax. The opposite is 10480 not true, 0.9.8f client can not communicate with earlier server. 10481 This update even addresses CVE-2007-4995. 10482 10483 *Andy Polyakov* 10484 10485 * Changes to avoid need for function casts in OpenSSL: some compilers 10486 (gcc 4.2 and later) reject their use. 10487 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10488 Steve Henson* 10489 10490 * Add RFC4507 support to OpenSSL. This includes the corrections in 10491 RFC4507bis. The encrypted ticket format is an encrypted encoded 10492 SSL_SESSION structure, that way new session features are automatically 10493 supported. 10494 10495 If a client application caches session in an SSL_SESSION structure 10496 support is transparent because tickets are now stored in the encoded 10497 SSL_SESSION. 10498 10499 The SSL_CTX structure automatically generates keys for ticket 10500 protection in servers so again support should be possible 10501 with no application modification. 10502 10503 If a client or server wishes to disable RFC4507 support then the option 10504 SSL_OP_NO_TICKET can be set. 10505 10506 Add a TLS extension debugging callback to allow the contents of any client 10507 or server extensions to be examined. 10508 10509 This work was sponsored by Google. 10510 10511 *Steve Henson* 10512 10513 * Add initial support for TLS extensions, specifically for the server_name 10514 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10515 have new members for a host name. The SSL data structure has an 10516 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10517 stored in that context to allow for session resumption, even after the 10518 SSL has been switched to a new SSL_CTX in reaction to a client's 10519 server_name extension. 10520 10521 New functions (subject to change): 10522 10523 SSL_get_servername() 10524 SSL_get_servername_type() 10525 SSL_set_SSL_CTX() 10526 10527 New CTRL codes and macros (subject to change): 10528 10529 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10530 - SSL_CTX_set_tlsext_servername_callback() 10531 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10532 - SSL_CTX_set_tlsext_servername_arg() 10533 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10534 10535 openssl s_client has a new '-servername ...' option. 10536 10537 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10538 '-key2 ...', '-servername_fatal' (subject to change). This allows 10539 testing the HostName extension for a specific single host name ('-cert' 10540 and '-key' remain fallbacks for handshakes without HostName 10541 negotiation). If the unrecognized_name alert has to be sent, this by 10542 default is a warning; it becomes fatal with the '-servername_fatal' 10543 option. 10544 10545 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10546 10547 * Add AES and SSE2 assembly language support to VC++ build. 10548 10549 *Steve Henson* 10550 10551 * Mitigate attack on final subtraction in Montgomery reduction. 10552 10553 *Andy Polyakov* 10554 10555 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10556 (which previously caused an internal error). 10557 10558 *Bodo Moeller* 10559 10560 * Squeeze another 10% out of IGE mode when in != out. 10561 10562 *Ben Laurie* 10563 10564 * AES IGE mode speedup. 10565 10566 *Dean Gaudet (Google)* 10567 10568 * Add the Korean symmetric 128-bit cipher SEED (see 10569 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10570 add SEED ciphersuites from RFC 4162: 10571 10572 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10573 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10574 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10575 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10576 10577 To minimize changes between patchlevels in the OpenSSL 0.9.8 10578 series, SEED remains excluded from compilation unless OpenSSL 10579 is configured with 'enable-seed'. 10580 10581 *KISA, Bodo Moeller* 10582 10583 * Mitigate branch prediction attacks, which can be practical if a 10584 single processor is shared, allowing a spy process to extract 10585 information. For detailed background information, see 10586 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10587 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10588 and Necessary Software Countermeasures"). The core of the change 10589 are new versions BN_div_no_branch() and 10590 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10591 respectively, which are slower, but avoid the security-relevant 10592 conditional branches. These are automatically called by BN_div() 10593 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10594 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10595 remove a conditional branch. 10596 10597 BN_FLG_CONSTTIME is the new name for the previous 10598 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10599 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10600 in the exponent causes BN_mod_exp_mont() to use the alternative 10601 implementation in BN_mod_exp_mont_consttime().) The old name 10602 remains as a deprecated alias. 10603 10604 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10605 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10606 constant-time implementations for more than just exponentiation. 10607 Here too the old name is kept as a deprecated alias. 10608 10609 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10610 the BN_BLINDING structure gets an independent copy of the 10611 modulus. This means that the previous `BIGNUM *m` argument to 10612 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10613 essentially becomes `const BIGNUM *m`, although we can't actually 10614 change this in the header file before 0.9.9. It allows 10615 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10616 enable BN_FLG_CONSTTIME. 10617 10618 *Matthew D Wood (Intel Corp)* 10619 10620 * In the SSL/TLS server implementation, be strict about session ID 10621 context matching (which matters if an application uses a single 10622 external cache for different purposes). Previously, 10623 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10624 set. This did ensure strict client verification, but meant that, 10625 with applications using a single external cache for quite 10626 different requirements, clients could circumvent ciphersuite 10627 restrictions for a given session ID context by starting a session 10628 in a different context. 10629 10630 *Bodo Moeller* 10631 10632 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10633 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10634 authentication-only ciphersuites. 10635 10636 *Bodo Moeller* 10637 10638 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10639 not complete and could lead to a possible single byte overflow 10640 ([CVE-2007-5135]) [Ben Laurie] 10641 10642### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10643 10644 * Since AES128 and AES256 (and similarly Camellia128 and 10645 Camellia256) share a single mask bit in the logic of 10646 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10647 kludge to work properly if AES128 is available and AES256 isn't 10648 (or if Camellia128 is available and Camellia256 isn't). 10649 10650 *Victor Duchovni* 10651 10652 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10653 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10654 When a point or a seed is encoded in a BIT STRING, we need to 10655 prevent the removal of trailing zero bits to get the proper DER 10656 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10657 of a NamedBitList, for which trailing 0 bits need to be removed.) 10658 10659 *Bodo Moeller* 10660 10661 * Have SSL/TLS server implementation tolerate "mismatched" record 10662 protocol version while receiving ClientHello even if the 10663 ClientHello is fragmented. (The server can't insist on the 10664 particular protocol version it has chosen before the ServerHello 10665 message has informed the client about his choice.) 10666 10667 *Bodo Moeller* 10668 10669 * Add RFC 3779 support. 10670 10671 *Rob Austein for ARIN, Ben Laurie* 10672 10673 * Load error codes if they are not already present instead of using a 10674 static variable. This allows them to be cleanly unloaded and reloaded. 10675 Improve header file function name parsing. 10676 10677 *Steve Henson* 10678 10679 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10680 or CAPABILITY handshake as required by RFCs. 10681 10682 *Goetz Babin-Ebell* 10683 10684### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10685 10686 * Introduce limits to prevent malicious keys being able to 10687 cause a denial of service. ([CVE-2006-2940]) 10688 10689 *Steve Henson, Bodo Moeller* 10690 10691 * Fix ASN.1 parsing of certain invalid structures that can result 10692 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10693 10694 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10695 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10696 10697 * Fix SSL client code which could crash if connecting to a 10698 malicious SSLv2 server. ([CVE-2006-4343]) 10699 10700 *Tavis Ormandy and Will Drewry, Google Security Team* 10701 10702 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10703 match only those. Before that, "AES256-SHA" would be interpreted 10704 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10705 the same strength classification in 0.9.7h) as we currently only 10706 have a single AES bit in the ciphersuite description bitmap. 10707 That change, however, also applied to ciphersuite strings such as 10708 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10709 namely, SSL 2.0 ciphersuites in addition to the more common ones 10710 from SSL 3.0/TLS 1.0. 10711 10712 So we change the selection algorithm again: Naming an explicit 10713 ciphersuite selects this one ciphersuite, and any other similar 10714 ciphersuite (same bitmap) from *other* protocol versions. 10715 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10716 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10717 10718 Since SSL 2.0 does not have any ciphersuites for which the 10719 128/256 bit distinction would be relevant, this works for now. 10720 The proper fix will be to use different bits for AES128 and 10721 AES256, which would have avoided the problems from the beginning; 10722 however, bits are scarce, so we can only do this in a new release 10723 (not just a patchlevel) when we can change the SSL_CIPHER 10724 definition to split the single 'unsigned long mask' bitmap into 10725 multiple values to extend the available space. 10726 10727 *Bodo Moeller* 10728 10729### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10730 10731 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10732 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10733 10734 * Add AES IGE and biIGE modes. 10735 10736 *Ben Laurie* 10737 10738 * Change the Unix randomness entropy gathering to use poll() when 10739 possible instead of select(), since the latter has some 10740 undesirable limitations. 10741 10742 *Darryl Miles via Richard Levitte and Bodo Moeller* 10743 10744 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10745 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10746 cannot be implicitly activated as part of, e.g., the "AES" alias. 10747 However, please upgrade to OpenSSL 0.9.9[-dev] for 10748 non-experimental use of the ECC ciphersuites to get TLS extension 10749 support, which is required for curve and point format negotiation 10750 to avoid potential handshake problems. 10751 10752 *Bodo Moeller* 10753 10754 * Disable rogue ciphersuites: 10755 10756 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 10757 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 10758 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 10759 10760 The latter two were purportedly from 10761 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 10762 appear there. 10763 10764 Also deactivate the remaining ciphersuites from 10765 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 10766 unofficial, and the ID has long expired. 10767 10768 *Bodo Moeller* 10769 10770 * Fix RSA blinding Heisenbug (problems sometimes occurred on 10771 dual-core machines) and other potential thread-safety issues. 10772 10773 *Bodo Moeller* 10774 10775 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 10776 versions), which is now available for royalty-free use 10777 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 10778 Also, add Camellia TLS ciphersuites from RFC 4132. 10779 10780 To minimize changes between patchlevels in the OpenSSL 0.9.8 10781 series, Camellia remains excluded from compilation unless OpenSSL 10782 is configured with 'enable-camellia'. 10783 10784 *NTT* 10785 10786 * Disable the padding bug check when compression is in use. The padding 10787 bug check assumes the first packet is of even length, this is not 10788 necessarily true if compression is enabled and can result in false 10789 positives causing handshake failure. The actual bug test is ancient 10790 code so it is hoped that implementations will either have fixed it by 10791 now or any which still have the bug do not support compression. 10792 10793 *Steve Henson* 10794 10795### Changes between 0.9.8a and 0.9.8b [04 May 2006] 10796 10797 * When applying a cipher rule check to see if string match is an explicit 10798 cipher suite and only match that one cipher suite if it is. 10799 10800 *Steve Henson* 10801 10802 * Link in manifests for VC++ if needed. 10803 10804 *Austin Ziegler <halostatue@gmail.com>* 10805 10806 * Update support for ECC-based TLS ciphersuites according to 10807 draft-ietf-tls-ecc-12.txt with proposed changes (but without 10808 TLS extensions, which are supported starting with the 0.9.9 10809 branch, not in the OpenSSL 0.9.8 branch). 10810 10811 *Douglas Stebila* 10812 10813 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 10814 opaque EVP_CIPHER_CTX handling. 10815 10816 *Steve Henson* 10817 10818 * Fixes and enhancements to zlib compression code. We now only use 10819 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 10820 to conform with the standards mentioned here: 10821 <http://www.zlib.net/DLL_FAQ.txt> 10822 Static zlib linking now works on Windows and the new --with-zlib-include 10823 --with-zlib-lib options to Configure can be used to supply the location 10824 of the headers and library. Gracefully handle case where zlib library 10825 can't be loaded. 10826 10827 *Steve Henson* 10828 10829 * Several fixes and enhancements to the OID generation code. The old code 10830 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 10831 handle numbers larger than ULONG_MAX, truncated printing and had a 10832 non standard OBJ_obj2txt() behaviour. 10833 10834 *Steve Henson* 10835 10836 * Add support for building of engines under engine/ as shared libraries 10837 under VC++ build system. 10838 10839 *Steve Henson* 10840 10841 * Corrected the numerous bugs in the Win32 path splitter in DSO. 10842 Hopefully, we will not see any false combination of paths any more. 10843 10844 *Richard Levitte* 10845 10846### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 10847 10848 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 10849 (part of SSL_OP_ALL). This option used to disable the 10850 countermeasure against man-in-the-middle protocol-version 10851 rollback in the SSL 2.0 server implementation, which is a bad 10852 idea. ([CVE-2005-2969]) 10853 10854 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 10855 for Information Security, National Institute of Advanced Industrial 10856 Science and Technology [AIST], Japan)* 10857 10858 * Add two function to clear and return the verify parameter flags. 10859 10860 *Steve Henson* 10861 10862 * Keep cipherlists sorted in the source instead of sorting them at 10863 runtime, thus removing the need for a lock. 10864 10865 *Nils Larsch* 10866 10867 * Avoid some small subgroup attacks in Diffie-Hellman. 10868 10869 *Nick Mathewson and Ben Laurie* 10870 10871 * Add functions for well-known primes. 10872 10873 *Nick Mathewson* 10874 10875 * Extended Windows CE support. 10876 10877 *Satoshi Nakamura and Andy Polyakov* 10878 10879 * Initialize SSL_METHOD structures at compile time instead of during 10880 runtime, thus removing the need for a lock. 10881 10882 *Steve Henson* 10883 10884 * Make PKCS7_decrypt() work even if no certificate is supplied by 10885 attempting to decrypt each encrypted key in turn. Add support to 10886 smime utility. 10887 10888 *Steve Henson* 10889 10890### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 10891 10892[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 10893OpenSSL 0.9.8.] 10894 10895 * Add libcrypto.pc and libssl.pc for those who feel they need them. 10896 10897 *Richard Levitte* 10898 10899 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 10900 key into the same file any more. 10901 10902 *Richard Levitte* 10903 10904 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 10905 10906 *Andy Polyakov* 10907 10908 * Add -utf8 command line and config file option to 'ca'. 10909 10910 *Stefan <stf@udoma.org* 10911 10912 * Removed the macro des_crypt(), as it seems to conflict with some 10913 libraries. Use DES_crypt(). 10914 10915 *Richard Levitte* 10916 10917 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 10918 involves renaming the source and generated shared-libs for 10919 both. The engines will accept the corrected or legacy ids 10920 ('ncipher' and '4758_cca' respectively) when binding. NB, 10921 this only applies when building 'shared'. 10922 10923 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 10924 10925 * Add attribute functions to EVP_PKEY structure. Modify 10926 PKCS12_create() to recognize a CSP name attribute and 10927 use it. Make -CSP option work again in pkcs12 utility. 10928 10929 *Steve Henson* 10930 10931 * Add new functionality to the bn blinding code: 10932 - automatic re-creation of the BN_BLINDING parameters after 10933 a fixed number of uses (currently 32) 10934 - add new function for parameter creation 10935 - introduce flags to control the update behaviour of the 10936 BN_BLINDING parameters 10937 - hide BN_BLINDING structure 10938 Add a second BN_BLINDING slot to the RSA structure to improve 10939 performance when a single RSA object is shared among several 10940 threads. 10941 10942 *Nils Larsch* 10943 10944 * Add support for DTLS. 10945 10946 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 10947 10948 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 10949 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 10950 10951 *Walter Goulet* 10952 10953 * Remove buggy and incomplete DH cert support from 10954 ssl/ssl_rsa.c and ssl/s3_both.c 10955 10956 *Nils Larsch* 10957 10958 * Use SHA-1 instead of MD5 as the default digest algorithm for 10959 the `apps/openssl` commands. 10960 10961 *Nils Larsch* 10962 10963 * Compile clean with "-Wall -Wmissing-prototypes 10964 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 10965 DEBUG_SAFESTACK must also be set. 10966 10967 *Ben Laurie* 10968 10969 * Change ./Configure so that certain algorithms can be disabled by default. 10970 The new counterpiece to "no-xxx" is "enable-xxx". 10971 10972 The patented RC5 and MDC2 algorithms will now be disabled unless 10973 "enable-rc5" and "enable-mdc2", respectively, are specified. 10974 10975 (IDEA remains enabled despite being patented. This is because IDEA 10976 is frequently required for interoperability, and there is no license 10977 fee for non-commercial use. As before, "no-idea" can be used to 10978 avoid this algorithm.) 10979 10980 *Bodo Moeller* 10981 10982 * Add processing of proxy certificates (see RFC 3820). This work was 10983 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 10984 EGEE (Enabling Grids for E-science in Europe). 10985 10986 *Richard Levitte* 10987 10988 * RC4 performance overhaul on modern architectures/implementations, such 10989 as Intel P4, IA-64 and AMD64. 10990 10991 *Andy Polyakov* 10992 10993 * New utility extract-section.pl. This can be used specify an alternative 10994 section number in a pod file instead of having to treat each file as 10995 a separate case in Makefile. This can be done by adding two lines to the 10996 pod file: 10997 10998 =for comment openssl_section:XXX 10999 11000 The blank line is mandatory. 11001 11002 *Steve Henson* 11003 11004 * New arguments -certform, -keyform and -pass for s_client and s_server 11005 to allow alternative format key and certificate files and passphrase 11006 sources. 11007 11008 *Steve Henson* 11009 11010 * New structure X509_VERIFY_PARAM which combines current verify parameters, 11011 update associated structures and add various utility functions. 11012 11013 Add new policy related verify parameters, include policy checking in 11014 standard verify code. Enhance 'smime' application with extra parameters 11015 to support policy checking and print out. 11016 11017 *Steve Henson* 11018 11019 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 11020 Nehemiah processors. These extensions support AES encryption in hardware 11021 as well as RNG (though RNG support is currently disabled). 11022 11023 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 11024 11025 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 11026 11027 *Geoff Thorpe* 11028 11029 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 11030 11031 *Andy Polyakov and a number of other people* 11032 11033 * Improved PowerPC platform support. Most notably BIGNUM assembler 11034 implementation contributed by IBM. 11035 11036 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 11037 11038 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 11039 exponent rather than 'unsigned long'. There is a corresponding change to 11040 the new 'rsa_keygen' element of the RSA_METHOD structure. 11041 11042 *Jelte Jansen, Geoff Thorpe* 11043 11044 * Functionality for creating the initial serial number file is now 11045 moved from CA.pl to the 'ca' utility with a new option -create_serial. 11046 11047 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 11048 number file to 1, which is bound to cause problems. To avoid 11049 the problems while respecting compatibility between different 0.9.7 11050 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 11051 CA.pl for serial number initialization. With the new release 0.9.8, 11052 we can fix the problem directly in the 'ca' utility.) 11053 11054 *Steve Henson* 11055 11056 * Reduced header interdependencies by declaring more opaque objects in 11057 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 11058 give fewer recursive includes, which could break lazy source code - so 11059 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 11060 developers should define this symbol when building and using openssl to 11061 ensure they track the recommended behaviour, interfaces, [etc], but 11062 backwards-compatible behaviour prevails when this isn't defined. 11063 11064 *Geoff Thorpe* 11065 11066 * New function X509_POLICY_NODE_print() which prints out policy nodes. 11067 11068 *Steve Henson* 11069 11070 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 11071 This will generate a random key of the appropriate length based on the 11072 cipher context. The EVP_CIPHER can provide its own random key generation 11073 routine to support keys of a specific form. This is used in the des and 11074 3des routines to generate a key of the correct parity. Update S/MIME 11075 code to use new functions and hence generate correct parity DES keys. 11076 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 11077 valid (weak or incorrect parity). 11078 11079 *Steve Henson* 11080 11081 * Add a local set of CRLs that can be used by X509_verify_cert() as well 11082 as looking them up. This is useful when the verified structure may contain 11083 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 11084 present unless the new PKCS7_NO_CRL flag is asserted. 11085 11086 *Steve Henson* 11087 11088 * Extend ASN1 oid configuration module. It now additionally accepts the 11089 syntax: 11090 11091 shortName = some long name, 1.2.3.4 11092 11093 *Steve Henson* 11094 11095 * Reimplemented the BN_CTX implementation. There is now no more static 11096 limitation on the number of variables it can handle nor the depth of the 11097 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 11098 information can now expand as required, and rather than having a single 11099 static array of bignums, BN_CTX now uses a linked-list of such arrays 11100 allowing it to expand on demand whilst maintaining the usefulness of 11101 BN_CTX's "bundling". 11102 11103 *Geoff Thorpe* 11104 11105 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 11106 to allow all RSA operations to function using a single BN_CTX. 11107 11108 *Geoff Thorpe* 11109 11110 * Preliminary support for certificate policy evaluation and checking. This 11111 is initially intended to pass the tests outlined in "Conformance Testing 11112 of Relying Party Client Certificate Path Processing Logic" v1.07. 11113 11114 *Steve Henson* 11115 11116 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 11117 remained unused and not that useful. A variety of other little bignum 11118 tweaks and fixes have also been made continuing on from the audit (see 11119 below). 11120 11121 *Geoff Thorpe* 11122 11123 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 11124 associated ASN1, EVP and SSL functions and old ASN1 macros. 11125 11126 *Richard Levitte* 11127 11128 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 11129 and this should never fail. So the return value from the use of 11130 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11131 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11132 11133 *Geoff Thorpe* 11134 11135 * BN_CTX_get() should return zero-valued bignums, providing the same 11136 initialised value as BN_new(). 11137 11138 *Geoff Thorpe, suggested by Ulf Möller* 11139 11140 * Support for inhibitAnyPolicy certificate extension. 11141 11142 *Steve Henson* 11143 11144 * An audit of the BIGNUM code is underway, for which debugging code is 11145 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11146 is considered valid when processing BIGNUMs, and causes execution to 11147 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11148 further steps are taken to deliberately pollute unused data in BIGNUM 11149 structures to try and expose faulty code further on. For now, openssl will 11150 (in its default mode of operation) continue to tolerate the inconsistent 11151 forms that it has tolerated in the past, but authors and packagers should 11152 consider trying openssl and their own applications when compiled with 11153 these debugging symbols defined. It will help highlight potential bugs in 11154 their own code, and will improve the test coverage for OpenSSL itself. At 11155 some point, these tighter rules will become openssl's default to improve 11156 maintainability, though the assert()s and other overheads will remain only 11157 in debugging configurations. See bn.h for more details. 11158 11159 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11160 11161 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11162 that can only be obtained through BN_CTX_new() (which implicitly 11163 initialises it). The presence of this function only made it possible 11164 to overwrite an existing structure (and cause memory leaks). 11165 11166 *Geoff Thorpe* 11167 11168 * Because of the callback-based approach for implementing LHASH as a 11169 template type, lh_insert() adds opaque objects to hash-tables and 11170 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11171 to clean up those corresponding objects before destroying the hash table 11172 (and losing the object pointers). So some over-zealous constifications in 11173 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11174 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11175 prototyped to have "const" restrictions on the object pointers they are 11176 given (and so aren't required to cast them away any more). 11177 11178 *Geoff Thorpe* 11179 11180 * The tmdiff.h API was so ugly and minimal that our own timing utility 11181 (speed) prefers to use its own implementation. The two implementations 11182 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11183 its object type properly exposed (MS_TM) instead of casting to/from 11184 `char *`. This may still change yet if someone realises MS_TM and 11185 `ms_time_***` 11186 aren't necessarily the greatest nomenclatures - but this is what was used 11187 internally to the implementation so I've used that for now. 11188 11189 *Geoff Thorpe* 11190 11191 * Ensure that deprecated functions do not get compiled when 11192 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11193 the self-tests were still using deprecated key-generation functions so 11194 these have been updated also. 11195 11196 *Geoff Thorpe* 11197 11198 * Reorganise PKCS#7 code to separate the digest location functionality 11199 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11200 New function PKCS7_set_digest() to set the digest type for PKCS#7 11201 digestedData type. Add additional code to correctly generate the 11202 digestedData type and add support for this type in PKCS7 initialization 11203 functions. 11204 11205 *Steve Henson* 11206 11207 * New function PKCS7_set0_type_other() this initializes a PKCS7 11208 structure of type "other". 11209 11210 *Steve Henson* 11211 11212 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11213 sure the loop does correctly stop and breaking ("division by zero") 11214 modulus operations are not performed. The (pre-generated) prime 11215 table crypto/bn/bn_prime.h was already correct, but it could not be 11216 re-generated on some platforms because of the "division by zero" 11217 situation in the script. 11218 11219 *Ralf S. Engelschall* 11220 11221 * Update support for ECC-based TLS ciphersuites according to 11222 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11223 SHA-1 now is only used for "small" curves (where the 11224 representation of a field element takes up to 24 bytes); for 11225 larger curves, the field element resulting from ECDH is directly 11226 used as premaster secret. 11227 11228 *Douglas Stebila (Sun Microsystems Laboratories)* 11229 11230 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11231 curve secp160r1 to the tests. 11232 11233 *Douglas Stebila (Sun Microsystems Laboratories)* 11234 11235 * Add the possibility to load symbols globally with DSO. 11236 11237 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11238 11239 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11240 control of the error stack. 11241 11242 *Richard Levitte* 11243 11244 * Add support for STORE in ENGINE. 11245 11246 *Richard Levitte* 11247 11248 * Add the STORE type. The intention is to provide a common interface 11249 to certificate and key stores, be they simple file-based stores, or 11250 HSM-type store, or LDAP stores, or... 11251 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11252 11253 *Richard Levitte* 11254 11255 * Add a generic structure called OPENSSL_ITEM. This can be used to 11256 pass a list of arguments to any function as well as provide a way 11257 for a function to pass data back to the caller. 11258 11259 *Richard Levitte* 11260 11261 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11262 works like BUF_strdup() but can be used to duplicate a portion of 11263 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11264 a memory area. 11265 11266 *Richard Levitte* 11267 11268 * Add the function sk_find_ex() which works like sk_find(), but will 11269 return an index to an element even if an exact match couldn't be 11270 found. The index is guaranteed to point at the element where the 11271 searched-for key would be inserted to preserve sorting order. 11272 11273 *Richard Levitte* 11274 11275 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11276 takes an extra flags argument for optional functionality. Currently, 11277 the following flags are defined: 11278 11279 OBJ_BSEARCH_VALUE_ON_NOMATCH 11280 This one gets OBJ_bsearch_ex() to return a pointer to the first 11281 element where the comparing function returns a negative or zero 11282 number. 11283 11284 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11285 This one gets OBJ_bsearch_ex() to return a pointer to the first 11286 element where the comparing function returns zero. This is useful 11287 if there are more than one element where the comparing function 11288 returns zero. 11289 11290 *Richard Levitte* 11291 11292 * Make it possible to create self-signed certificates with 'openssl ca' 11293 in such a way that the self-signed certificate becomes part of the 11294 CA database and uses the same mechanisms for serial number generation 11295 as all other certificate signing. The new flag '-selfsign' enables 11296 this functionality. Adapt CA.sh and CA.pl.in. 11297 11298 *Richard Levitte* 11299 11300 * Add functionality to check the public key of a certificate request 11301 against a given private. This is useful to check that a certificate 11302 request can be signed by that key (self-signing). 11303 11304 *Richard Levitte* 11305 11306 * Make it possible to have multiple active certificates with the same 11307 subject in the CA index file. This is done only if the keyword 11308 'unique_subject' is set to 'no' in the main CA section (default 11309 if 'CA_default') of the configuration file. The value is saved 11310 with the database itself in a separate index attribute file, 11311 named like the index file with '.attr' appended to the name. 11312 11313 *Richard Levitte* 11314 11315 * Generate multi-valued AVAs using '+' notation in config files for 11316 req and dirName. 11317 11318 *Steve Henson* 11319 11320 * Support for nameConstraints certificate extension. 11321 11322 *Steve Henson* 11323 11324 * Support for policyConstraints certificate extension. 11325 11326 *Steve Henson* 11327 11328 * Support for policyMappings certificate extension. 11329 11330 *Steve Henson* 11331 11332 * Make sure the default DSA_METHOD implementation only uses its 11333 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11334 and change its own handlers to be NULL so as to remove unnecessary 11335 indirection. This lets alternative implementations fallback to the 11336 default implementation more easily. 11337 11338 *Geoff Thorpe* 11339 11340 * Support for directoryName in GeneralName related extensions 11341 in config files. 11342 11343 *Steve Henson* 11344 11345 * Make it possible to link applications using Makefile.shared. 11346 Make that possible even when linking against static libraries! 11347 11348 *Richard Levitte* 11349 11350 * Support for single pass processing for S/MIME signing. This now 11351 means that S/MIME signing can be done from a pipe, in addition 11352 cleartext signing (multipart/signed type) is effectively streaming 11353 and the signed data does not need to be all held in memory. 11354 11355 This is done with a new flag PKCS7_STREAM. When this flag is set 11356 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11357 is done after the data is output (and digests calculated) in 11358 SMIME_write_PKCS7(). 11359 11360 *Steve Henson* 11361 11362 * Add full support for -rpath/-R, both in shared libraries and 11363 applications, at least on the platforms where it's known how 11364 to do it. 11365 11366 *Richard Levitte* 11367 11368 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11369 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11370 will now compute a table of multiples of the generator that 11371 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11372 faster (notably in the case of a single point multiplication, 11373 scalar * generator). 11374 11375 *Nils Larsch, Bodo Moeller* 11376 11377 * IPv6 support for certificate extensions. The various extensions 11378 which use the IP:a.b.c.d can now take IPv6 addresses using the 11379 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11380 correctly. 11381 11382 *Steve Henson* 11383 11384 * Added an ENGINE that implements RSA by performing private key 11385 exponentiations with the GMP library. The conversions to and from 11386 GMP's mpz_t format aren't optimised nor are any montgomery forms 11387 cached, and on x86 it appears OpenSSL's own performance has caught up. 11388 However there are likely to be other architectures where GMP could 11389 provide a boost. This ENGINE is not built in by default, but it can be 11390 specified at Configure time and should be accompanied by the necessary 11391 linker additions, eg; 11392 ./config -DOPENSSL_USE_GMP -lgmp 11393 11394 *Geoff Thorpe* 11395 11396 * "openssl engine" will not display ENGINE/DSO load failure errors when 11397 testing availability of engines with "-t" - the old behaviour is 11398 produced by increasing the feature's verbosity with "-tt". 11399 11400 *Geoff Thorpe* 11401 11402 * ECDSA routines: under certain error conditions uninitialized BN objects 11403 could be freed. Solution: make sure initialization is performed early 11404 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11405 via PR#459) 11406 11407 *Lutz Jaenicke* 11408 11409 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11410 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11411 software implementations. For DSA and DH, parameter generation can 11412 also be overridden by providing the appropriate method callbacks. 11413 11414 *Geoff Thorpe* 11415 11416 * Change the "progress" mechanism used in key-generation and 11417 primality testing to functions that take a new BN_GENCB pointer in 11418 place of callback/argument pairs. The new API functions have `_ex` 11419 postfixes and the older functions are reimplemented as wrappers for 11420 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11421 declarations of the old functions to help (graceful) attempts to 11422 migrate to the new functions. Also, the new key-generation API 11423 functions operate on a caller-supplied key-structure and return 11424 success/failure rather than returning a key or NULL - this is to 11425 help make "keygen" another member function of RSA_METHOD etc. 11426 11427 Example for using the new callback interface: 11428 11429 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11430 void *my_arg = ...; 11431 BN_GENCB my_cb; 11432 11433 BN_GENCB_set(&my_cb, my_callback, my_arg); 11434 11435 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11436 /* For the meaning of a, b in calls to my_callback(), see the 11437 * documentation of the function that calls the callback. 11438 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11439 * my_callback should return 1 if it wants BN_is_prime_ex() 11440 * to continue, or 0 to stop. 11441 */ 11442 11443 *Geoff Thorpe* 11444 11445 * Change the ZLIB compression method to be stateful, and make it 11446 available to TLS with the number defined in 11447 draft-ietf-tls-compression-04.txt. 11448 11449 *Richard Levitte* 11450 11451 * Add the ASN.1 structures and functions for CertificatePair, which 11452 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11453 11454 CertificatePair ::= SEQUENCE { 11455 forward [0] Certificate OPTIONAL, 11456 reverse [1] Certificate OPTIONAL, 11457 -- at least one of the pair shall be present -- } 11458 11459 Also implement the PEM functions to read and write certificate 11460 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11461 11462 This needed to be defined, mostly for the sake of the LDAP 11463 attribute crossCertificatePair, but may prove useful elsewhere as 11464 well. 11465 11466 *Richard Levitte* 11467 11468 * Make it possible to inhibit symlinking of shared libraries in 11469 Makefile.shared, for Cygwin's sake. 11470 11471 *Richard Levitte* 11472 11473 * Extend the BIGNUM API by creating a function 11474 void BN_set_negative(BIGNUM *a, int neg); 11475 and a macro that behave like 11476 int BN_is_negative(const BIGNUM *a); 11477 11478 to avoid the need to access 'a->neg' directly in applications. 11479 11480 *Nils Larsch* 11481 11482 * Implement fast modular reduction for pseudo-Mersenne primes 11483 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11484 EC_GROUP_new_curve_GFp() will now automatically use this 11485 if applicable. 11486 11487 *Nils Larsch <nla@trustcenter.de>* 11488 11489 * Add new lock type (CRYPTO_LOCK_BN). 11490 11491 *Bodo Moeller* 11492 11493 * Change the ENGINE framework to automatically load engines 11494 dynamically from specific directories unless they could be 11495 found to already be built in or loaded. Move all the 11496 current engines except for the cryptodev one to a new 11497 directory engines/. 11498 The engines in engines/ are built as shared libraries if 11499 the "shared" options was given to ./Configure or ./config. 11500 Otherwise, they are inserted in libcrypto.a. 11501 /usr/local/ssl/engines is the default directory for dynamic 11502 engines, but that can be overridden at configure time through 11503 the usual use of --prefix and/or --openssldir, and at run 11504 time with the environment variable OPENSSL_ENGINES. 11505 11506 *Geoff Thorpe and Richard Levitte* 11507 11508 * Add Makefile.shared, a helper makefile to build shared 11509 libraries. Adapt Makefile.org. 11510 11511 *Richard Levitte* 11512 11513 * Add version info to Win32 DLLs. 11514 11515 *Peter 'Luna' Runestig" <peter@runestig.com>* 11516 11517 * Add new 'medium level' PKCS#12 API. Certificates and keys 11518 can be added using this API to created arbitrary PKCS#12 11519 files while avoiding the low-level API. 11520 11521 New options to PKCS12_create(), key or cert can be NULL and 11522 will then be omitted from the output file. The encryption 11523 algorithm NIDs can be set to -1 for no encryption, the mac 11524 iteration count can be set to 0 to omit the mac. 11525 11526 Enhance pkcs12 utility by making the -nokeys and -nocerts 11527 options work when creating a PKCS#12 file. New option -nomac 11528 to omit the mac, NONE can be set for an encryption algorithm. 11529 New code is modified to use the enhanced PKCS12_create() 11530 instead of the low-level API. 11531 11532 *Steve Henson* 11533 11534 * Extend ASN1 encoder to support indefinite length constructed 11535 encoding. This can output sequences tags and octet strings in 11536 this form. Modify pk7_asn1.c to support indefinite length 11537 encoding. This is experimental and needs additional code to 11538 be useful, such as an ASN1 bio and some enhanced streaming 11539 PKCS#7 code. 11540 11541 Extend template encode functionality so that tagging is passed 11542 down to the template encoder. 11543 11544 *Steve Henson* 11545 11546 * Let 'openssl req' fail if an argument to '-newkey' is not 11547 recognized instead of using RSA as a default. 11548 11549 *Bodo Moeller* 11550 11551 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11552 As these are not official, they are not included in "ALL"; 11553 the "ECCdraft" ciphersuite group alias can be used to select them. 11554 11555 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11556 11557 * Add ECDH engine support. 11558 11559 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11560 11561 * Add ECDH in new directory crypto/ecdh/. 11562 11563 *Douglas Stebila (Sun Microsystems Laboratories)* 11564 11565 * Let BN_rand_range() abort with an error after 100 iterations 11566 without success (which indicates a broken PRNG). 11567 11568 *Bodo Moeller* 11569 11570 * Change BN_mod_sqrt() so that it verifies that the input value 11571 is really the square of the return value. (Previously, 11572 BN_mod_sqrt would show GIGO behaviour.) 11573 11574 *Bodo Moeller* 11575 11576 * Add named elliptic curves over binary fields from X9.62, SECG, 11577 and WAP/WTLS; add OIDs that were still missing. 11578 11579 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11580 11581 * Extend the EC library for elliptic curves over binary fields 11582 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11583 New EC_METHOD: 11584 11585 EC_GF2m_simple_method 11586 11587 New API functions: 11588 11589 EC_GROUP_new_curve_GF2m 11590 EC_GROUP_set_curve_GF2m 11591 EC_GROUP_get_curve_GF2m 11592 EC_POINT_set_affine_coordinates_GF2m 11593 EC_POINT_get_affine_coordinates_GF2m 11594 EC_POINT_set_compressed_coordinates_GF2m 11595 11596 Point compression for binary fields is disabled by default for 11597 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11598 enable it). 11599 11600 As binary polynomials are represented as BIGNUMs, various members 11601 of the EC_GROUP and EC_POINT data structures can be shared 11602 between the implementations for prime fields and binary fields; 11603 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11604 are essentially identical to their `..._GFp` counterparts. 11605 (For simplicity, the `..._GFp` prefix has been dropped from 11606 various internal method names.) 11607 11608 An internal 'field_div' method (similar to 'field_mul' and 11609 'field_sqr') has been added; this is used only for binary fields. 11610 11611 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11612 11613 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11614 through methods ('mul', 'precompute_mult'). 11615 11616 The generic implementations (now internally called 'ec_wNAF_mul' 11617 and 'ec_wNAF_precomputed_mult') remain the default if these 11618 methods are undefined. 11619 11620 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11621 11622 * New function EC_GROUP_get_degree, which is defined through 11623 EC_METHOD. For curves over prime fields, this returns the bit 11624 length of the modulus. 11625 11626 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11627 11628 * New functions EC_GROUP_dup, EC_POINT_dup. 11629 (These simply call ..._new and ..._copy). 11630 11631 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11632 11633 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11634 Polynomials are represented as BIGNUMs (where the sign bit is not 11635 used) in the following functions [macros]: 11636 11637 BN_GF2m_add 11638 BN_GF2m_sub [= BN_GF2m_add] 11639 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11640 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11641 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11642 BN_GF2m_mod_inv 11643 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11644 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11645 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11646 BN_GF2m_cmp [= BN_ucmp] 11647 11648 (Note that only the 'mod' functions are actually for fields GF(2^m). 11649 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11650 11651 For some functions, an the irreducible polynomial defining a 11652 field can be given as an 'unsigned int[]' with strictly 11653 decreasing elements giving the indices of those bits that are set; 11654 i.e., p[] represents the polynomial 11655 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11656 where 11657 p[0] > p[1] > ... > p[k] = 0. 11658 This applies to the following functions: 11659 11660 BN_GF2m_mod_arr 11661 BN_GF2m_mod_mul_arr 11662 BN_GF2m_mod_sqr_arr 11663 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11664 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11665 BN_GF2m_mod_exp_arr 11666 BN_GF2m_mod_sqrt_arr 11667 BN_GF2m_mod_solve_quad_arr 11668 BN_GF2m_poly2arr 11669 BN_GF2m_arr2poly 11670 11671 Conversion can be performed by the following functions: 11672 11673 BN_GF2m_poly2arr 11674 BN_GF2m_arr2poly 11675 11676 bntest.c has additional tests for binary polynomial arithmetic. 11677 11678 Two implementations for BN_GF2m_mod_div() are available. 11679 The default algorithm simply uses BN_GF2m_mod_inv() and 11680 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11681 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11682 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11683 11684 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11685 11686 * Add new error code 'ERR_R_DISABLED' that can be used when some 11687 functionality is disabled at compile-time. 11688 11689 *Douglas Stebila <douglas.stebila@sun.com>* 11690 11691 * Change default behaviour of 'openssl asn1parse' so that more 11692 information is visible when viewing, e.g., a certificate: 11693 11694 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11695 mode the content of non-printable OCTET STRINGs is output in a 11696 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11697 avoid the appearance of a printable string. 11698 11699 *Nils Larsch <nla@trustcenter.de>* 11700 11701 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11702 functions 11703 EC_GROUP_set_asn1_flag() 11704 EC_GROUP_get_asn1_flag() 11705 EC_GROUP_set_point_conversion_form() 11706 EC_GROUP_get_point_conversion_form() 11707 These control ASN1 encoding details: 11708 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11709 has been set to OPENSSL_EC_NAMED_CURVE. 11710 - Points are encoded in uncompressed form by default; options for 11711 asn1_for are as for point2oct, namely 11712 POINT_CONVERSION_COMPRESSED 11713 POINT_CONVERSION_UNCOMPRESSED 11714 POINT_CONVERSION_HYBRID 11715 11716 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11717 functions 11718 EC_GROUP_set_seed() 11719 EC_GROUP_get0_seed() 11720 EC_GROUP_get_seed_len() 11721 This is used only for ASN1 purposes (so far). 11722 11723 *Nils Larsch <nla@trustcenter.de>* 11724 11725 * Add 'field_type' member to EC_METHOD, which holds the NID 11726 of the appropriate field type OID. The new function 11727 EC_METHOD_get_field_type() returns this value. 11728 11729 *Nils Larsch <nla@trustcenter.de>* 11730 11731 * Add functions 11732 EC_POINT_point2bn() 11733 EC_POINT_bn2point() 11734 EC_POINT_point2hex() 11735 EC_POINT_hex2point() 11736 providing useful interfaces to EC_POINT_point2oct() and 11737 EC_POINT_oct2point(). 11738 11739 *Nils Larsch <nla@trustcenter.de>* 11740 11741 * Change internals of the EC library so that the functions 11742 EC_GROUP_set_generator() 11743 EC_GROUP_get_generator() 11744 EC_GROUP_get_order() 11745 EC_GROUP_get_cofactor() 11746 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11747 to methods, which would lead to unnecessary code duplication when 11748 adding different types of curves. 11749 11750 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11751 11752 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11753 arithmetic, and such that modified wNAFs are generated 11754 (which avoid length expansion in many cases). 11755 11756 *Bodo Moeller* 11757 11758 * Add a function EC_GROUP_check_discriminant() (defined via 11759 EC_METHOD) that verifies that the curve discriminant is non-zero. 11760 11761 Add a function EC_GROUP_check() that makes some sanity tests 11762 on a EC_GROUP, its generator and order. This includes 11763 EC_GROUP_check_discriminant(). 11764 11765 *Nils Larsch <nla@trustcenter.de>* 11766 11767 * Add ECDSA in new directory crypto/ecdsa/. 11768 11769 Add applications 'openssl ecparam' and 'openssl ecdsa' 11770 (these are based on 'openssl dsaparam' and 'openssl dsa'). 11771 11772 ECDSA support is also included in various other files across the 11773 library. Most notably, 11774 - 'openssl req' now has a '-newkey ecdsa:file' option; 11775 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 11776 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 11777 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 11778 them suitable for ECDSA where domain parameters must be 11779 extracted before the specific public key; 11780 - ECDSA engine support has been added. 11781 11782 *Nils Larsch <nla@trustcenter.de>* 11783 11784 * Include some named elliptic curves, and add OIDs from X9.62, 11785 SECG, and WAP/WTLS. Each curve can be obtained from the new 11786 function 11787 EC_GROUP_new_by_curve_name(), 11788 and the list of available named curves can be obtained with 11789 EC_get_builtin_curves(). 11790 Also add a 'curve_name' member to EC_GROUP objects, which can be 11791 accessed via 11792 EC_GROUP_set_curve_name() 11793 EC_GROUP_get_curve_name() 11794 11795 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 11796 11797 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 11798 was actually never needed) and in BN_mul(). The removal in BN_mul() 11799 required a small change in bn_mul_part_recursive() and the addition 11800 of the functions bn_cmp_part_words(), bn_sub_part_words() and 11801 bn_add_part_words(), which do the same thing as bn_cmp_words(), 11802 bn_sub_words() and bn_add_words() except they take arrays with 11803 differing sizes. 11804 11805 *Richard Levitte* 11806 11807### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 11808 11809 * Cleanse PEM buffers before freeing them since they may contain 11810 sensitive data. 11811 11812 *Benjamin Bennett <ben@psc.edu>* 11813 11814 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 11815 a ciphersuite string such as "DEFAULT:RSA" cannot enable 11816 authentication-only ciphersuites. 11817 11818 *Bodo Moeller* 11819 11820 * Since AES128 and AES256 share a single mask bit in the logic of 11821 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 11822 kludge to work properly if AES128 is available and AES256 isn't. 11823 11824 *Victor Duchovni* 11825 11826 * Expand security boundary to match 1.1.1 module. 11827 11828 *Steve Henson* 11829 11830 * Remove redundant features: hash file source, editing of test vectors 11831 modify fipsld to use external fips_premain.c signature. 11832 11833 *Steve Henson* 11834 11835 * New perl script mkfipsscr.pl to create shell scripts or batch files to 11836 run algorithm test programs. 11837 11838 *Steve Henson* 11839 11840 * Make algorithm test programs more tolerant of whitespace. 11841 11842 *Steve Henson* 11843 11844 * Have SSL/TLS server implementation tolerate "mismatched" record 11845 protocol version while receiving ClientHello even if the 11846 ClientHello is fragmented. (The server can't insist on the 11847 particular protocol version it has chosen before the ServerHello 11848 message has informed the client about his choice.) 11849 11850 *Bodo Moeller* 11851 11852 * Load error codes if they are not already present instead of using a 11853 static variable. This allows them to be cleanly unloaded and reloaded. 11854 11855 *Steve Henson* 11856 11857### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 11858 11859 * Introduce limits to prevent malicious keys being able to 11860 cause a denial of service. ([CVE-2006-2940]) 11861 11862 *Steve Henson, Bodo Moeller* 11863 11864 * Fix ASN.1 parsing of certain invalid structures that can result 11865 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 11866 11867 * Fix buffer overflow in SSL_get_shared_ciphers() function. 11868 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 11869 11870 * Fix SSL client code which could crash if connecting to a 11871 malicious SSLv2 server. ([CVE-2006-4343]) 11872 11873 *Tavis Ormandy and Will Drewry, Google Security Team* 11874 11875 * Change ciphersuite string processing so that an explicit 11876 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 11877 will no longer include "AES128-SHA"), and any other similar 11878 ciphersuite (same bitmap) from *other* protocol versions (so that 11879 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 11880 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 11881 changes from 0.9.8b and 0.9.8d. 11882 11883 *Bodo Moeller* 11884 11885### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 11886 11887 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 11888 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 11889 11890 * Change the Unix randomness entropy gathering to use poll() when 11891 possible instead of select(), since the latter has some 11892 undesirable limitations. 11893 11894 *Darryl Miles via Richard Levitte and Bodo Moeller* 11895 11896 * Disable rogue ciphersuites: 11897 11898 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11899 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11900 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11901 11902 The latter two were purportedly from 11903 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11904 appear there. 11905 11906 Also deactivate the remaining ciphersuites from 11907 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11908 unofficial, and the ID has long expired. 11909 11910 *Bodo Moeller* 11911 11912 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11913 dual-core machines) and other potential thread-safety issues. 11914 11915 *Bodo Moeller* 11916 11917### Changes between 0.9.7i and 0.9.7j [04 May 2006] 11918 11919 * Adapt fipsld and the build system to link against the validated FIPS 11920 module in FIPS mode. 11921 11922 *Steve Henson* 11923 11924 * Fixes for VC++ 2005 build under Windows. 11925 11926 *Steve Henson* 11927 11928 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 11929 from a Windows bash shell such as MSYS. It is autodetected from the 11930 "config" script when run from a VC++ environment. Modify standard VC++ 11931 build to use fipscanister.o from the GNU make build. 11932 11933 *Steve Henson* 11934 11935### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 11936 11937 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 11938 The value now differs depending on if you build for FIPS or not. 11939 BEWARE! A program linked with a shared FIPSed libcrypto can't be 11940 safely run with a non-FIPSed libcrypto, as it may crash because of 11941 the difference induced by this change. 11942 11943 *Andy Polyakov* 11944 11945### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 11946 11947 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11948 (part of SSL_OP_ALL). This option used to disable the 11949 countermeasure against man-in-the-middle protocol-version 11950 rollback in the SSL 2.0 server implementation, which is a bad 11951 idea. ([CVE-2005-2969]) 11952 11953 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11954 for Information Security, National Institute of Advanced Industrial 11955 Science and Technology [AIST, Japan)]* 11956 11957 * Minimal support for X9.31 signatures and PSS padding modes. This is 11958 mainly for FIPS compliance and not fully integrated at this stage. 11959 11960 *Steve Henson* 11961 11962 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 11963 the exponentiation using a fixed-length exponent. (Otherwise, 11964 the information leaked through timing could expose the secret key 11965 after many signatures; cf. Bleichenbacher's attack on DSA with 11966 biased k.) 11967 11968 *Bodo Moeller* 11969 11970 * Make a new fixed-window mod_exp implementation the default for 11971 RSA, DSA, and DH private-key operations so that the sequence of 11972 squares and multiplies and the memory access pattern are 11973 independent of the particular secret key. This will mitigate 11974 cache-timing and potential related attacks. 11975 11976 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 11977 and this is automatically used by BN_mod_exp_mont() if the new flag 11978 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 11979 will use this BN flag for private exponents unless the flag 11980 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 11981 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 11982 11983 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 11984 11985 * Change the client implementation for SSLv23_method() and 11986 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 11987 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 11988 (Previously, the SSL 2.0 backwards compatible Client Hello 11989 message format would be used even with SSL_OP_NO_SSLv2.) 11990 11991 *Bodo Moeller* 11992 11993 * Add support for smime-type MIME parameter in S/MIME messages which some 11994 clients need. 11995 11996 *Steve Henson* 11997 11998 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 11999 a threadsafe manner. Modify rsa code to use new function and add calls 12000 to dsa and dh code (which had race conditions before). 12001 12002 *Steve Henson* 12003 12004 * Include the fixed error library code in the C error file definitions 12005 instead of fixing them up at runtime. This keeps the error code 12006 structures constant. 12007 12008 *Steve Henson* 12009 12010### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 12011 12012[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 12013OpenSSL 0.9.8.] 12014 12015 * Fixes for newer kerberos headers. NB: the casts are needed because 12016 the 'length' field is signed on one version and unsigned on another 12017 with no (?) obvious way to tell the difference, without these VC++ 12018 complains. Also the "definition" of FAR (blank) is no longer included 12019 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 12020 some needed definitions. 12021 12022 *Steve Henson* 12023 12024 * Undo Cygwin change. 12025 12026 *Ulf Möller* 12027 12028 * Added support for proxy certificates according to RFC 3820. 12029 Because they may be a security thread to unaware applications, 12030 they must be explicitly allowed in run-time. See 12031 docs/HOWTO/proxy_certificates.txt for further information. 12032 12033 *Richard Levitte* 12034 12035### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 12036 12037 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 12038 server and client random values. Previously 12039 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 12040 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 12041 12042 This change has negligible security impact because: 12043 12044 1. Server and client random values still have 24 bytes of pseudo random 12045 data. 12046 12047 2. Server and client random values are sent in the clear in the initial 12048 handshake. 12049 12050 3. The master secret is derived using the premaster secret (48 bytes in 12051 size for static RSA ciphersuites) as well as client server and random 12052 values. 12053 12054 The OpenSSL team would like to thank the UK NISCC for bringing this issue 12055 to our attention. 12056 12057 *Stephen Henson, reported by UK NISCC* 12058 12059 * Use Windows randomness collection on Cygwin. 12060 12061 *Ulf Möller* 12062 12063 * Fix hang in EGD/PRNGD query when communication socket is closed 12064 prematurely by EGD/PRNGD. 12065 12066 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 12067 12068 * Prompt for pass phrases when appropriate for PKCS12 input format. 12069 12070 *Steve Henson* 12071 12072 * Back-port of selected performance improvements from development 12073 branch, as well as improved support for PowerPC platforms. 12074 12075 *Andy Polyakov* 12076 12077 * Add lots of checks for memory allocation failure, error codes to indicate 12078 failure and freeing up memory if a failure occurs. 12079 12080 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 12081 12082 * Add new -passin argument to dgst. 12083 12084 *Steve Henson* 12085 12086 * Perform some character comparisons of different types in X509_NAME_cmp: 12087 this is needed for some certificates that re-encode DNs into UTF8Strings 12088 (in violation of RFC3280) and can't or won't issue name rollover 12089 certificates. 12090 12091 *Steve Henson* 12092 12093 * Make an explicit check during certificate validation to see that 12094 the CA setting in each certificate on the chain is correct. As a 12095 side effect always do the following basic checks on extensions, 12096 not just when there's an associated purpose to the check: 12097 12098 - if there is an unhandled critical extension (unless the user 12099 has chosen to ignore this fault) 12100 - if the path length has been exceeded (if one is set at all) 12101 - that certain extensions fit the associated purpose (if one has 12102 been given) 12103 12104 *Richard Levitte* 12105 12106### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 12107 12108 * Avoid a race condition when CRLs are checked in a multi threaded 12109 environment. This would happen due to the reordering of the revoked 12110 entries during signature checking and serial number lookup. Now the 12111 encoding is cached and the serial number sort performed under a lock. 12112 Add new STACK function sk_is_sorted(). 12113 12114 *Steve Henson* 12115 12116 * Add Delta CRL to the extension code. 12117 12118 *Steve Henson* 12119 12120 * Various fixes to s3_pkt.c so alerts are sent properly. 12121 12122 *David Holmes <d.holmes@f5.com>* 12123 12124 * Reduce the chances of duplicate issuer name and serial numbers (in 12125 violation of RFC3280) using the OpenSSL certificate creation utilities. 12126 This is done by creating a random 64 bit value for the initial serial 12127 number when a serial number file is created or when a self signed 12128 certificate is created using 'openssl req -x509'. The initial serial 12129 number file is created using 'openssl x509 -next_serial' in CA.pl 12130 rather than being initialized to 1. 12131 12132 *Steve Henson* 12133 12134### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12135 12136 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12137 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12138 12139 *Joe Orton, Steve Henson* 12140 12141 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12142 ([CVE-2004-0112]) 12143 12144 *Joe Orton, Steve Henson* 12145 12146 * Make it possible to have multiple active certificates with the same 12147 subject in the CA index file. This is done only if the keyword 12148 'unique_subject' is set to 'no' in the main CA section (default 12149 if 'CA_default') of the configuration file. The value is saved 12150 with the database itself in a separate index attribute file, 12151 named like the index file with '.attr' appended to the name. 12152 12153 *Richard Levitte* 12154 12155 * X509 verify fixes. Disable broken certificate workarounds when 12156 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12157 keyUsage extension present. Don't accept CRLs with unhandled critical 12158 extensions: since verify currently doesn't process CRL extensions this 12159 rejects a CRL with *any* critical extensions. Add new verify error codes 12160 for these cases. 12161 12162 *Steve Henson* 12163 12164 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12165 A clarification of RFC2560 will require the use of OCTET STRINGs and 12166 some implementations cannot handle the current raw format. Since OpenSSL 12167 copies and compares OCSP nonces as opaque blobs without any attempt at 12168 parsing them this should not create any compatibility issues. 12169 12170 *Steve Henson* 12171 12172 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12173 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12174 this HMAC (and other) operations are several times slower than OpenSSL 12175 < 0.9.7. 12176 12177 *Steve Henson* 12178 12179 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12180 12181 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12182 12183 * Use the correct content when signing type "other". 12184 12185 *Steve Henson* 12186 12187### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12188 12189 * Fix various bugs revealed by running the NISCC test suite: 12190 12191 Stop out of bounds reads in the ASN1 code when presented with 12192 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12193 12194 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12195 12196 If verify callback ignores invalid public key errors don't try to check 12197 certificate signature with the NULL public key. 12198 12199 *Steve Henson* 12200 12201 * New -ignore_err option in ocsp application to stop the server 12202 exiting on the first error in a request. 12203 12204 *Steve Henson* 12205 12206 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12207 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12208 specifications. 12209 12210 *Steve Henson* 12211 12212 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12213 extra data after the compression methods not only for TLS 1.0 12214 but also for SSL 3.0 (as required by the specification). 12215 12216 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12217 12218 * Change X509_certificate_type() to mark the key as exported/exportable 12219 when it's 512 *bits* long, not 512 bytes. 12220 12221 *Richard Levitte* 12222 12223 * Change AES_cbc_encrypt() so it outputs exact multiple of 12224 blocks during encryption. 12225 12226 *Richard Levitte* 12227 12228 * Various fixes to base64 BIO and non blocking I/O. On write 12229 flushes were not handled properly if the BIO retried. On read 12230 data was not being buffered properly and had various logic bugs. 12231 This also affects blocking I/O when the data being decoded is a 12232 certain size. 12233 12234 *Steve Henson* 12235 12236 * Various S/MIME bugfixes and compatibility changes: 12237 output correct application/pkcs7 MIME type if 12238 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12239 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12240 of files as .eml work). Correctly handle very long lines in MIME 12241 parser. 12242 12243 *Steve Henson* 12244 12245### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12246 12247 * Countermeasure against the Klima-Pokorny-Rosa extension of 12248 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12249 a protocol version number mismatch like a decryption error 12250 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12251 12252 *Bodo Moeller* 12253 12254 * Turn on RSA blinding by default in the default implementation 12255 to avoid a timing attack. Applications that don't want it can call 12256 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12257 They would be ill-advised to do so in most cases. 12258 12259 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12260 12261 * Change RSA blinding code so that it works when the PRNG is not 12262 seeded (in this case, the secret RSA exponent is abused as 12263 an unpredictable seed -- if it is not unpredictable, there 12264 is no point in blinding anyway). Make RSA blinding thread-safe 12265 by remembering the creator's thread ID in rsa->blinding and 12266 having all other threads use local one-time blinding factors 12267 (this requires more computation than sharing rsa->blinding, but 12268 avoids excessive locking; and if an RSA object is not shared 12269 between threads, blinding will still be very fast). 12270 12271 *Bodo Moeller* 12272 12273 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12274 ENGINE as defaults for all supported algorithms irrespective of 12275 the 'flags' parameter. 'flags' is now honoured, so applications 12276 should make sure they are passing it correctly. 12277 12278 *Geoff Thorpe* 12279 12280 * Target "mingw" now allows native Windows code to be generated in 12281 the Cygwin environment as well as with the MinGW compiler. 12282 12283 *Ulf Moeller* 12284 12285### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12286 12287 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12288 via timing by performing a MAC computation even if incorrect 12289 block cipher padding has been found. This is a countermeasure 12290 against active attacks where the attacker has to distinguish 12291 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12292 12293 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12294 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12295 Martin Vuagnoux (EPFL, Ilion)* 12296 12297 * Make the no-err option work as intended. The intention with no-err 12298 is not to have the whole error stack handling routines removed from 12299 libcrypto, it's only intended to remove all the function name and 12300 reason texts, thereby removing some of the footprint that may not 12301 be interesting if those errors aren't displayed anyway. 12302 12303 NOTE: it's still possible for any application or module to have its 12304 own set of error texts inserted. The routines are there, just not 12305 used by default when no-err is given. 12306 12307 *Richard Levitte* 12308 12309 * Add support for FreeBSD on IA64. 12310 12311 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12312 12313 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12314 Kerberos function mit_des_cbc_cksum(). Before this change, 12315 the value returned by DES_cbc_cksum() was like the one from 12316 mit_des_cbc_cksum(), except the bytes were swapped. 12317 12318 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12319 12320 * Allow an application to disable the automatic SSL chain building. 12321 Before this a rather primitive chain build was always performed in 12322 ssl3_output_cert_chain(): an application had no way to send the 12323 correct chain if the automatic operation produced an incorrect result. 12324 12325 Now the chain builder is disabled if either: 12326 12327 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12328 12329 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12330 12331 The reasoning behind this is that an application would not want the 12332 auto chain building to take place if extra chain certificates are 12333 present and it might also want a means of sending no additional 12334 certificates (for example the chain has two certificates and the 12335 root is omitted). 12336 12337 *Steve Henson* 12338 12339 * Add the possibility to build without the ENGINE framework. 12340 12341 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12342 12343 * Under Win32 gmtime() can return NULL: check return value in 12344 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12345 12346 *Steve Henson* 12347 12348 * DSA routines: under certain error conditions uninitialized BN objects 12349 could be freed. Solution: make sure initialization is performed early 12350 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12351 Nils Larsch <nla@trustcenter.de> via PR#459) 12352 12353 *Lutz Jaenicke* 12354 12355 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12356 checked on reconnect on the client side, therefore session resumption 12357 could still fail with a "ssl session id is different" error. This 12358 behaviour is masked when SSL_OP_ALL is used due to 12359 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12360 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12361 followup to PR #377. 12362 12363 *Lutz Jaenicke* 12364 12365 * IA-32 assembler support enhancements: unified ELF targets, support 12366 for SCO/Caldera platforms, fix for Cygwin shared build. 12367 12368 *Andy Polyakov* 12369 12370 * Add support for FreeBSD on sparc64. As a consequence, support for 12371 FreeBSD on non-x86 processors is separate from x86 processors on 12372 the config script, much like the NetBSD support. 12373 12374 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12375 12376### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12377 12378[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12379OpenSSL 0.9.7.] 12380 12381 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12382 code (06) was taken as the first octet of the session ID and the last 12383 octet was ignored consequently. As a result SSLv2 client side session 12384 caching could not have worked due to the session ID mismatch between 12385 client and server. 12386 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12387 PR #377. 12388 12389 *Lutz Jaenicke* 12390 12391 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12392 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12393 removed entirely. 12394 12395 *Richard Levitte* 12396 12397 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12398 seems that in spite of existing for more than a year, many application 12399 author have done nothing to provide the necessary callbacks, which 12400 means that this particular engine will not work properly anywhere. 12401 This is a very unfortunate situation which forces us, in the name 12402 of usability, to give the hw_ncipher.c a static lock, which is part 12403 of libcrypto. 12404 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12405 appear in 0.9.8 or later. We EXPECT application authors to have 12406 dealt properly with this when 0.9.8 is released (unless we actually 12407 make such changes in the libcrypto locking code that changes will 12408 have to be made anyway). 12409 12410 *Richard Levitte* 12411 12412 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12413 octets have been read, EOF or an error occurs. Without this change 12414 some truncated ASN1 structures will not produce an error. 12415 12416 *Steve Henson* 12417 12418 * Disable Heimdal support, since it hasn't been fully implemented. 12419 Still give the possibility to force the use of Heimdal, but with 12420 warnings and a request that patches get sent to openssl-dev. 12421 12422 *Richard Levitte* 12423 12424 * Add the VC-CE target, introduce the WINCE sysname, and add 12425 INSTALL.WCE and appropriate conditionals to make it build. 12426 12427 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12428 12429 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12430 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12431 edit numbers of the version. 12432 12433 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12434 12435 * Introduce safe string copy and catenation functions 12436 (BUF_strlcpy() and BUF_strlcat()). 12437 12438 *Ben Laurie (CHATS) and Richard Levitte* 12439 12440 * Avoid using fixed-size buffers for one-line DNs. 12441 12442 *Ben Laurie (CHATS)* 12443 12444 * Add BUF_MEM_grow_clean() to avoid information leakage when 12445 resizing buffers containing secrets, and use where appropriate. 12446 12447 *Ben Laurie (CHATS)* 12448 12449 * Avoid using fixed size buffers for configuration file location. 12450 12451 *Ben Laurie (CHATS)* 12452 12453 * Avoid filename truncation for various CA files. 12454 12455 *Ben Laurie (CHATS)* 12456 12457 * Use sizeof in preference to magic numbers. 12458 12459 *Ben Laurie (CHATS)* 12460 12461 * Avoid filename truncation in cert requests. 12462 12463 *Ben Laurie (CHATS)* 12464 12465 * Add assertions to check for (supposedly impossible) buffer 12466 overflows. 12467 12468 *Ben Laurie (CHATS)* 12469 12470 * Don't cache truncated DNS entries in the local cache (this could 12471 potentially lead to a spoofing attack). 12472 12473 *Ben Laurie (CHATS)* 12474 12475 * Fix various buffers to be large enough for hex/decimal 12476 representations in a platform independent manner. 12477 12478 *Ben Laurie (CHATS)* 12479 12480 * Add CRYPTO_realloc_clean() to avoid information leakage when 12481 resizing buffers containing secrets, and use where appropriate. 12482 12483 *Ben Laurie (CHATS)* 12484 12485 * Add BIO_indent() to avoid much slightly worrying code to do 12486 indents. 12487 12488 *Ben Laurie (CHATS)* 12489 12490 * Convert sprintf()/BIO_puts() to BIO_printf(). 12491 12492 *Ben Laurie (CHATS)* 12493 12494 * buffer_gets() could terminate with the buffer only half 12495 full. Fixed. 12496 12497 *Ben Laurie (CHATS)* 12498 12499 * Add assertions to prevent user-supplied crypto functions from 12500 overflowing internal buffers by having large block sizes, etc. 12501 12502 *Ben Laurie (CHATS)* 12503 12504 * New OPENSSL_assert() macro (similar to assert(), but enabled 12505 unconditionally). 12506 12507 *Ben Laurie (CHATS)* 12508 12509 * Eliminate unused copy of key in RC4. 12510 12511 *Ben Laurie (CHATS)* 12512 12513 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12514 12515 *Ben Laurie (CHATS)* 12516 12517 * Fix off-by-one error in EGD path. 12518 12519 *Ben Laurie (CHATS)* 12520 12521 * If RANDFILE path is too long, ignore instead of truncating. 12522 12523 *Ben Laurie (CHATS)* 12524 12525 * Eliminate unused and incorrectly sized X.509 structure 12526 CBCParameter. 12527 12528 *Ben Laurie (CHATS)* 12529 12530 * Eliminate unused and dangerous function knumber(). 12531 12532 *Ben Laurie (CHATS)* 12533 12534 * Eliminate unused and dangerous structure, KSSL_ERR. 12535 12536 *Ben Laurie (CHATS)* 12537 12538 * Protect against overlong session ID context length in an encoded 12539 session object. Since these are local, this does not appear to be 12540 exploitable. 12541 12542 *Ben Laurie (CHATS)* 12543 12544 * Change from security patch (see 0.9.6e below) that did not affect 12545 the 0.9.6 release series: 12546 12547 Remote buffer overflow in SSL3 protocol - an attacker could 12548 supply an oversized master key in Kerberos-enabled versions. 12549 ([CVE-2002-0657]) 12550 12551 *Ben Laurie (CHATS)* 12552 12553 * Change the SSL kerb5 codes to match RFC 2712. 12554 12555 *Richard Levitte* 12556 12557 * Make -nameopt work fully for req and add -reqopt switch. 12558 12559 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12560 12561 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12562 12563 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12564 12565 * Make sure tests can be performed even if the corresponding algorithms 12566 have been removed entirely. This was also the last step to make 12567 OpenSSL compilable with DJGPP under all reasonable conditions. 12568 12569 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12570 12571 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12572 to allow version independent disabling of normally unselected ciphers, 12573 which may be activated as a side-effect of selecting a single cipher. 12574 12575 (E.g., cipher list string "RSA" enables ciphersuites that are left 12576 out of "ALL" because they do not provide symmetric encryption. 12577 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12578 12579 *Lutz Jaenicke, Bodo Moeller* 12580 12581 * Add appropriate support for separate platform-dependent build 12582 directories. The recommended way to make a platform-dependent 12583 build directory is the following (tested on Linux), maybe with 12584 some local tweaks: 12585 12586 # Place yourself outside of the OpenSSL source tree. In 12587 # this example, the environment variable OPENSSL_SOURCE 12588 # is assumed to contain the absolute OpenSSL source directory. 12589 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12590 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12591 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12592 mkdir -p `dirname $F` 12593 ln -s $OPENSSL_SOURCE/$F $F 12594 done 12595 12596 To be absolutely sure not to disturb the source tree, a "make clean" 12597 is a good thing. If it isn't successful, don't worry about it, 12598 it probably means the source directory is very clean. 12599 12600 *Richard Levitte* 12601 12602 * Make sure any ENGINE control commands make local copies of string 12603 pointers passed to them whenever necessary. Otherwise it is possible 12604 the caller may have overwritten (or deallocated) the original string 12605 data when a later ENGINE operation tries to use the stored values. 12606 12607 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12608 12609 * Improve diagnostics in file reading and command-line digests. 12610 12611 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12612 12613 * Add AES modes CFB and OFB to the object database. Correct an 12614 error in AES-CFB decryption. 12615 12616 *Richard Levitte* 12617 12618 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12619 allows existing EVP_CIPHER_CTX structures to be reused after 12620 calling `EVP_*Final()`. This behaviour is used by encryption 12621 BIOs and some applications. This has the side effect that 12622 applications must explicitly clean up cipher contexts with 12623 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12624 12625 *Steve Henson* 12626 12627 * Check the values of dna and dnb in bn_mul_recursive before calling 12628 bn_mul_comba (a non zero value means the a or b arrays do not contain 12629 n2 elements) and fallback to bn_mul_normal if either is not zero. 12630 12631 *Steve Henson* 12632 12633 * Fix escaping of non-ASCII characters when using the -subj option 12634 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12635 12636 *Lutz Jaenicke* 12637 12638 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12639 form for "surname", serialNumber has no short form. 12640 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12641 therefore remove "mail" short name for "internet 7". 12642 The OID for unique identifiers in X509 certificates is 12643 x500UniqueIdentifier, not uniqueIdentifier. 12644 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12645 12646 *Lutz Jaenicke* 12647 12648 * Add an "init" command to the ENGINE config module and auto initialize 12649 ENGINEs. Without any "init" command the ENGINE will be initialized 12650 after all ctrl commands have been executed on it. If init=1 the 12651 ENGINE is initialized at that point (ctrls before that point are run 12652 on the uninitialized ENGINE and after on the initialized one). If 12653 init=0 then the ENGINE will not be initialized at all. 12654 12655 *Steve Henson* 12656 12657 * Fix the 'app_verify_callback' interface so that the user-defined 12658 argument is actually passed to the callback: In the 12659 SSL_CTX_set_cert_verify_callback() prototype, the callback 12660 declaration has been changed from 12661 int (*cb)() 12662 into 12663 int (*cb)(X509_STORE_CTX *,void *); 12664 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12665 i=s->ctx->app_verify_callback(&ctx) 12666 has been changed into 12667 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12668 12669 To update applications using SSL_CTX_set_cert_verify_callback(), 12670 a dummy argument can be added to their callback functions. 12671 12672 *D. K. Smetters <smetters@parc.xerox.com>* 12673 12674 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12675 12676 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12677 12678 * Add and OPENSSL_LOAD_CONF define which will cause 12679 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12680 This allows older applications to transparently support certain 12681 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12682 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12683 load the config file and OPENSSL_add_all_algorithms_conf() which will 12684 always load it have also been added. 12685 12686 *Steve Henson* 12687 12688 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12689 Adjust NIDs and EVP layer. 12690 12691 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12692 12693 * Config modules support in openssl utility. 12694 12695 Most commands now load modules from the config file, 12696 though in a few (such as version) this isn't done 12697 because it couldn't be used for anything. 12698 12699 In the case of ca and req the config file used is 12700 the same as the utility itself: that is the -config 12701 command line option can be used to specify an 12702 alternative file. 12703 12704 *Steve Henson* 12705 12706 * Move default behaviour from OPENSSL_config(). If appname is NULL 12707 use "openssl_conf" if filename is NULL use default openssl config file. 12708 12709 *Steve Henson* 12710 12711 * Add an argument to OPENSSL_config() to allow the use of an alternative 12712 config section name. Add a new flag to tolerate a missing config file 12713 and move code to CONF_modules_load_file(). 12714 12715 *Steve Henson* 12716 12717 * Support for crypto accelerator cards from Accelerated Encryption 12718 Processing, www.aep.ie. (Use engine 'aep') 12719 The support was copied from 0.9.6c [engine] and adapted/corrected 12720 to work with the new engine framework. 12721 12722 *AEP Inc. and Richard Levitte* 12723 12724 * Support for SureWare crypto accelerator cards from Baltimore 12725 Technologies. (Use engine 'sureware') 12726 The support was copied from 0.9.6c [engine] and adapted 12727 to work with the new engine framework. 12728 12729 *Richard Levitte* 12730 12731 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12732 make the newer ENGINE framework commands for the CHIL engine work. 12733 12734 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12735 12736 * Make it possible to produce shared libraries on ReliantUNIX. 12737 12738 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12739 12740 * Add the configuration target debug-linux-ppro. 12741 Make 'openssl rsa' use the general key loading routines 12742 implemented in `apps.c`, and make those routines able to 12743 handle the key format FORMAT_NETSCAPE and the variant 12744 FORMAT_IISSGC. 12745 12746 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12747 12748 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12749 12750 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12751 12752 * Add -keyform to rsautl, and document -engine. 12753 12754 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 12755 12756 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 12757 BIO_R_NO_SUCH_FILE error code rather than the generic 12758 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 12759 12760 *Ben Laurie* 12761 12762 * Add new functions 12763 ERR_peek_last_error 12764 ERR_peek_last_error_line 12765 ERR_peek_last_error_line_data. 12766 These are similar to 12767 ERR_peek_error 12768 ERR_peek_error_line 12769 ERR_peek_error_line_data, 12770 but report on the latest error recorded rather than the first one 12771 still in the error queue. 12772 12773 *Ben Laurie, Bodo Moeller* 12774 12775 * default_algorithms option in ENGINE config module. This allows things 12776 like: 12777 default_algorithms = ALL 12778 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 12779 12780 *Steve Henson* 12781 12782 * Preliminary ENGINE config module. 12783 12784 *Steve Henson* 12785 12786 * New experimental application configuration code. 12787 12788 *Steve Henson* 12789 12790 * Change the AES code to follow the same name structure as all other 12791 symmetric ciphers, and behave the same way. Move everything to 12792 the directory crypto/aes, thereby obsoleting crypto/rijndael. 12793 12794 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12795 12796 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 12797 12798 *Ben Laurie and Theo de Raadt* 12799 12800 * Add option to output public keys in req command. 12801 12802 *Massimiliano Pala madwolf@openca.org* 12803 12804 * Use wNAFs in EC_POINTs_mul() for improved efficiency 12805 (up to about 10% better than before for P-192 and P-224). 12806 12807 *Bodo Moeller* 12808 12809 * New functions/macros 12810 12811 SSL_CTX_set_msg_callback(ctx, cb) 12812 SSL_CTX_set_msg_callback_arg(ctx, arg) 12813 SSL_set_msg_callback(ssl, cb) 12814 SSL_set_msg_callback_arg(ssl, arg) 12815 12816 to request calling a callback function 12817 12818 void cb(int write_p, int version, int content_type, 12819 const void *buf, size_t len, SSL *ssl, void *arg) 12820 12821 whenever a protocol message has been completely received 12822 (write_p == 0) or sent (write_p == 1). Here 'version' is the 12823 protocol version according to which the SSL library interprets 12824 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 12825 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 12826 the content type as defined in the SSL 3.0/TLS 1.0 protocol 12827 specification (change_cipher_spec(20), alert(21), handshake(22)). 12828 'buf' and 'len' point to the actual message, 'ssl' to the 12829 SSL object, and 'arg' is the application-defined value set by 12830 SSL[_CTX]_set_msg_callback_arg(). 12831 12832 'openssl s_client' and 'openssl s_server' have new '-msg' options 12833 to enable a callback that displays all protocol messages. 12834 12835 *Bodo Moeller* 12836 12837 * Change the shared library support so shared libraries are built as 12838 soon as the corresponding static library is finished, and thereby get 12839 openssl and the test programs linked against the shared library. 12840 This still only happens when the keyword "shard" has been given to 12841 the configuration scripts. 12842 12843 NOTE: shared library support is still an experimental thing, and 12844 backward binary compatibility is still not guaranteed. 12845 12846 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 12847 12848 * Add support for Subject Information Access extension. 12849 12850 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12851 12852 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 12853 additional bytes when new memory had to be allocated, not just 12854 when reusing an existing buffer. 12855 12856 *Bodo Moeller* 12857 12858 * New command line and configuration option 'utf8' for the req command. 12859 This allows field values to be specified as UTF8 strings. 12860 12861 *Steve Henson* 12862 12863 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 12864 runs for the former and machine-readable output for the latter. 12865 12866 *Ben Laurie* 12867 12868 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 12869 of the e-mail address in the DN (i.e., it will go into a certificate 12870 extension only). The new configuration file option 'email_in_dn = no' 12871 has the same effect. 12872 12873 *Massimiliano Pala madwolf@openca.org* 12874 12875 * Change all functions with names starting with `des_` to be starting 12876 with `DES_` instead. Add wrappers that are compatible with libdes, 12877 but are named `_ossl_old_des_*`. Finally, add macros that map the 12878 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 12879 compatibility is desired. If OpenSSL 0.9.6c compatibility is 12880 desired, the `des_*` symbols will be mapped to `DES_*`, with one 12881 exception. 12882 12883 Since we provide two compatibility mappings, the user needs to 12884 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 12885 compatibility is desired. The default (i.e., when that macro 12886 isn't defined) is OpenSSL 0.9.6c compatibility. 12887 12888 There are also macros that enable and disable the support of old 12889 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 12890 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 12891 are defined, the default will apply: to support the old des routines. 12892 12893 In either case, one must include openssl/des.h to get the correct 12894 definitions. Do not try to just include openssl/des_old.h, that 12895 won't work. 12896 12897 NOTE: This is a major break of an old API into a new one. Software 12898 authors are encouraged to switch to the `DES_` style functions. Some 12899 time in the future, des_old.h and the libdes compatibility functions 12900 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 12901 default), and then completely removed. 12902 12903 *Richard Levitte* 12904 12905 * Test for certificates which contain unsupported critical extensions. 12906 If such a certificate is found during a verify operation it is 12907 rejected by default: this behaviour can be overridden by either 12908 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 12909 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 12910 X509_supported_extension() has also been added which returns 1 if a 12911 particular extension is supported. 12912 12913 *Steve Henson* 12914 12915 * Modify the behaviour of EVP cipher functions in similar way to digests 12916 to retain compatibility with existing code. 12917 12918 *Steve Henson* 12919 12920 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 12921 compatibility with existing code. In particular the 'ctx' parameter does 12922 not have to be to be initialized before the call to EVP_DigestInit() and 12923 it is tidied up after a call to EVP_DigestFinal(). New function 12924 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 12925 EVP_MD_CTX_copy() changed to not require the destination to be 12926 initialized valid and new function EVP_MD_CTX_copy_ex() added which 12927 requires the destination to be valid. 12928 12929 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 12930 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 12931 12932 *Steve Henson* 12933 12934 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 12935 so that complete 'Handshake' protocol structures are kept in memory 12936 instead of overwriting 'msg_type' and 'length' with 'body' data. 12937 12938 *Bodo Moeller* 12939 12940 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 12941 12942 *Massimo Santin via Richard Levitte* 12943 12944 * Major restructuring to the underlying ENGINE code. This includes 12945 reduction of linker bloat, separation of pure "ENGINE" manipulation 12946 (initialisation, etc) from functionality dealing with implementations 12947 of specific crypto interfaces. This change also introduces integrated 12948 support for symmetric ciphers and digest implementations - so ENGINEs 12949 can now accelerate these by providing EVP_CIPHER and EVP_MD 12950 implementations of their own. This is detailed in 12951 [crypto/engine/README.md](crypto/engine/README.md) 12952 as it couldn't be adequately described here. However, there are a few 12953 API changes worth noting - some RSA, DSA, DH, and RAND functions that 12954 were changed in the original introduction of ENGINE code have now 12955 reverted back - the hooking from this code to ENGINE is now a good 12956 deal more passive and at run-time, operations deal directly with 12957 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 12958 dereferencing through an ENGINE pointer any more. Also, the ENGINE 12959 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 12960 they were not being used by the framework as there is no concept of a 12961 BIGNUM_METHOD and they could not be generalised to the new 12962 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 12963 ENGINE_cpy() has been removed as it cannot be consistently defined in 12964 the new code. 12965 12966 *Geoff Thorpe* 12967 12968 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 12969 12970 *Steve Henson* 12971 12972 * Change mkdef.pl to sort symbols that get the same entry number, 12973 and make sure the automatically generated functions `ERR_load_*` 12974 become part of libeay.num as well. 12975 12976 *Richard Levitte* 12977 12978 * New function SSL_renegotiate_pending(). This returns true once 12979 renegotiation has been requested (either SSL_renegotiate() call 12980 or HelloRequest/ClientHello received from the peer) and becomes 12981 false once a handshake has been completed. 12982 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 12983 sends a HelloRequest, but does not ensure that a handshake takes 12984 place. SSL_renegotiate_pending() is useful for checking if the 12985 client has followed the request.) 12986 12987 *Bodo Moeller* 12988 12989 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 12990 By default, clients may request session resumption even during 12991 renegotiation (if session ID contexts permit); with this option, 12992 session resumption is possible only in the first handshake. 12993 12994 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 12995 more bits available for options that should not be part of 12996 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 12997 12998 *Bodo Moeller* 12999 13000 * Add some demos for certificate and certificate request creation. 13001 13002 *Steve Henson* 13003 13004 * Make maximum certificate chain size accepted from the peer application 13005 settable (`SSL*_get/set_max_cert_list()`), as proposed by 13006 "Douglas E. Engert" <deengert@anl.gov>. 13007 13008 *Lutz Jaenicke* 13009 13010 * Add support for shared libraries for Unixware-7 13011 (Boyd Lynn Gerber <gerberb@zenez.com>). 13012 13013 *Lutz Jaenicke* 13014 13015 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 13016 be done prior to destruction. Use this to unload error strings from 13017 ENGINEs that load their own error strings. NB: This adds two new API 13018 functions to "get" and "set" this destroy handler in an ENGINE. 13019 13020 *Geoff Thorpe* 13021 13022 * Alter all existing ENGINE implementations (except "openssl" and 13023 "openbsd") to dynamically instantiate their own error strings. This 13024 makes them more flexible to be built both as statically-linked ENGINEs 13025 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 13026 Also, add stub code to each that makes building them as self-contained 13027 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 13028 13029 *Geoff Thorpe* 13030 13031 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 13032 implementations into applications that are completely implemented in 13033 self-contained shared-libraries. The "dynamic" ENGINE exposes control 13034 commands that can be used to configure what shared-library to load and 13035 to control aspects of the way it is handled. Also, made an update to 13036 the [README-Engine.md](README-Engine.md) file 13037 that brings its information up-to-date and 13038 provides some information and instructions on the "dynamic" ENGINE 13039 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 13040 13041 *Geoff Thorpe* 13042 13043 * Make it possible to unload ranges of ERR strings with a new 13044 "ERR_unload_strings" function. 13045 13046 *Geoff Thorpe* 13047 13048 * Add a copy() function to EVP_MD. 13049 13050 *Ben Laurie* 13051 13052 * Make EVP_MD routines take a context pointer instead of just the 13053 md_data void pointer. 13054 13055 *Ben Laurie* 13056 13057 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 13058 that the digest can only process a single chunk of data 13059 (typically because it is provided by a piece of 13060 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 13061 is only going to provide a single chunk of data, and hence the 13062 framework needn't accumulate the data for oneshot drivers. 13063 13064 *Ben Laurie* 13065 13066 * As with "ERR", make it possible to replace the underlying "ex_data" 13067 functions. This change also alters the storage and management of global 13068 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 13069 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 13070 index counters. The API functions that use this state have been changed 13071 to take a "class_index" rather than pointers to the class's local STACK 13072 and counter, and there is now an API function to dynamically create new 13073 classes. This centralisation allows us to (a) plug a lot of the 13074 thread-safety problems that existed, and (b) makes it possible to clean 13075 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 13076 such data would previously have always leaked in application code and 13077 workarounds were in place to make the memory debugging turn a blind eye 13078 to it. Application code that doesn't use this new function will still 13079 leak as before, but their memory debugging output will announce it now 13080 rather than letting it slide. 13081 13082 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 13083 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 13084 has a return value to indicate success or failure. 13085 13086 *Geoff Thorpe* 13087 13088 * Make it possible to replace the underlying "ERR" functions such that the 13089 global state (2 LHASH tables and 2 locks) is only used by the "default" 13090 implementation. This change also adds two functions to "get" and "set" 13091 the implementation prior to it being automatically set the first time 13092 any other ERR function takes place. Ie. an application can call "get", 13093 pass the return value to a module it has just loaded, and that module 13094 can call its own "set" function using that value. This means the 13095 module's "ERR" operations will use (and modify) the error state in the 13096 application and not in its own statically linked copy of OpenSSL code. 13097 13098 *Geoff Thorpe* 13099 13100 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 13101 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 13102 the operation, and provides a more encapsulated way for external code 13103 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 13104 to use these functions rather than manually incrementing the counts. 13105 13106 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 13107 13108 *Geoff Thorpe* 13109 13110 * Add EVP test program. 13111 13112 *Ben Laurie* 13113 13114 * Add symmetric cipher support to ENGINE. Expect the API to change! 13115 13116 *Ben Laurie* 13117 13118 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 13119 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 13120 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 13121 These allow a CRL to be built without having to access X509_CRL fields 13122 directly. Modify 'ca' application to use new functions. 13123 13124 *Steve Henson* 13125 13126 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 13127 bug workarounds. Rollback attack detection is a security feature. 13128 The problem will only arise on OpenSSL servers when TLSv1 is not 13129 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13130 Software authors not wanting to support TLSv1 will have special reasons 13131 for their choice and can explicitly enable this option. 13132 13133 *Bodo Moeller, Lutz Jaenicke* 13134 13135 * Rationalise EVP so it can be extended: don't include a union of 13136 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13137 (similar to those existing for EVP_CIPHER_CTX). 13138 Usage example: 13139 13140 EVP_MD_CTX md; 13141 13142 EVP_MD_CTX_init(&md); /* new function call */ 13143 EVP_DigestInit(&md, EVP_sha1()); 13144 EVP_DigestUpdate(&md, in, len); 13145 EVP_DigestFinal(&md, out, NULL); 13146 EVP_MD_CTX_cleanup(&md); /* new function call */ 13147 13148 *Ben Laurie* 13149 13150 * Make DES key schedule conform to the usual scheme, as well as 13151 correcting its structure. This means that calls to DES functions 13152 now have to pass a pointer to a des_key_schedule instead of a 13153 plain des_key_schedule (which was actually always a pointer 13154 anyway): E.g., 13155 13156 des_key_schedule ks; 13157 13158 des_set_key_checked(..., &ks); 13159 des_ncbc_encrypt(..., &ks, ...); 13160 13161 (Note that a later change renames 'des_...' into 'DES_...'.) 13162 13163 *Ben Laurie* 13164 13165 * Initial reduction of linker bloat: the use of some functions, such as 13166 PEM causes large amounts of unused functions to be linked in due to 13167 poor organisation. For example pem_all.c contains every PEM function 13168 which has a knock on effect of linking in large amounts of (unused) 13169 ASN1 code. Grouping together similar functions and splitting unrelated 13170 functions prevents this. 13171 13172 *Steve Henson* 13173 13174 * Cleanup of EVP macros. 13175 13176 *Ben Laurie* 13177 13178 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13179 correct `_ecb suffix`. 13180 13181 *Ben Laurie* 13182 13183 * Add initial OCSP responder support to ocsp application. The 13184 revocation information is handled using the text based index 13185 use by the ca application. The responder can either handle 13186 requests generated internally, supplied in files (for example 13187 via a CGI script) or using an internal minimal server. 13188 13189 *Steve Henson* 13190 13191 * Add configuration choices to get zlib compression for TLS. 13192 13193 *Richard Levitte* 13194 13195 * Changes to Kerberos SSL for RFC 2712 compliance: 13196 1. Implemented real KerberosWrapper, instead of just using 13197 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13198 2. Implemented optional authenticator field of KerberosWrapper. 13199 13200 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13201 and authenticator structs; see crypto/krb5/. 13202 13203 Generalized Kerberos calls to support multiple Kerberos libraries. 13204 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13205 via Richard Levitte* 13206 13207 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13208 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13209 values for each of the key sizes rather than having just 13210 parameters (and 'speed' generating keys each time). 13211 13212 *Geoff Thorpe* 13213 13214 * Speed up EVP routines. 13215 Before: 13216crypt 13217pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13218s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13219s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13220s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13221crypt 13222s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13223s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13224s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13225 After: 13226crypt 13227s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13228crypt 13229s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13230 13231 *Ben Laurie* 13232 13233 * Added the OS2-EMX target. 13234 13235 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13236 13237 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13238 New functions to support `NCONF` routines in extension code. 13239 New function `CONF_set_nconf()` 13240 to allow functions which take an `NCONF` to also handle the old `LHASH` 13241 structure: this means that the old `CONF` compatible routines can be 13242 retained (in particular w.rt. extensions) without having to duplicate the 13243 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13244 13245 *Steve Henson* 13246 13247 * Enhance the general user interface with mechanisms for inner control 13248 and with possibilities to have yes/no kind of prompts. 13249 13250 *Richard Levitte* 13251 13252 * Change all calls to low-level digest routines in the library and 13253 applications to use EVP. Add missing calls to HMAC_cleanup() and 13254 don't assume HMAC_CTX can be copied using memcpy(). 13255 13256 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13257 13258 * Add the possibility to control engines through control names but with 13259 arbitrary arguments instead of just a string. 13260 Change the key loaders to take a UI_METHOD instead of a callback 13261 function pointer. NOTE: this breaks binary compatibility with earlier 13262 versions of OpenSSL [engine]. 13263 Adapt the nCipher code for these new conditions and add a card insertion 13264 callback. 13265 13266 *Richard Levitte* 13267 13268 * Enhance the general user interface with mechanisms to better support 13269 dialog box interfaces, application-defined prompts, the possibility 13270 to use defaults (for example default passwords from somewhere else) 13271 and interrupts/cancellations. 13272 13273 *Richard Levitte* 13274 13275 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13276 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13277 13278 *Steve Henson* 13279 13280 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13281 tidy up some unnecessarily weird code in 'sk_new()'). 13282 13283 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13284 13285 * Change the key loading routines for ENGINEs to use the same kind 13286 callback (pem_password_cb) as all other routines that need this 13287 kind of callback. 13288 13289 *Richard Levitte* 13290 13291 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13292 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13293 than this minimum value is recommended. 13294 13295 *Lutz Jaenicke* 13296 13297 * New random seeder for OpenVMS, using the system process statistics 13298 that are easily reachable. 13299 13300 *Richard Levitte* 13301 13302 * Windows apparently can't transparently handle global 13303 variables defined in DLLs. Initialisations such as: 13304 13305 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13306 13307 won't compile. This is used by the any applications that need to 13308 declare their own ASN1 modules. This was fixed by adding the option 13309 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13310 needed for static libraries under Win32. 13311 13312 *Steve Henson* 13313 13314 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13315 setting of purpose and trust fields. New X509_STORE trust and 13316 purpose functions and tidy up setting in other SSL functions. 13317 13318 *Steve Henson* 13319 13320 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13321 structure. These are inherited by X509_STORE_CTX when it is 13322 initialised. This allows various defaults to be set in the 13323 X509_STORE structure (such as flags for CRL checking and custom 13324 purpose or trust settings) for functions which only use X509_STORE_CTX 13325 internally such as S/MIME. 13326 13327 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13328 trust settings if they are not set in X509_STORE. This allows X509_STORE 13329 purposes and trust (in S/MIME for example) to override any set by default. 13330 13331 Add command line options for CRL checking to smime, s_client and s_server 13332 applications. 13333 13334 *Steve Henson* 13335 13336 * Initial CRL based revocation checking. If the CRL checking flag(s) 13337 are set then the CRL is looked up in the X509_STORE structure and 13338 its validity and signature checked, then if the certificate is found 13339 in the CRL the verify fails with a revoked error. 13340 13341 Various new CRL related callbacks added to X509_STORE_CTX structure. 13342 13343 Command line options added to 'verify' application to support this. 13344 13345 This needs some additional work, such as being able to handle multiple 13346 CRLs with different times, extension based lookup (rather than just 13347 by subject name) and ultimately more complete V2 CRL extension 13348 handling. 13349 13350 *Steve Henson* 13351 13352 * Add a general user interface API (crypto/ui/). This is designed 13353 to replace things like des_read_password and friends (backward 13354 compatibility functions using this new API are provided). 13355 The purpose is to remove prompting functions from the DES code 13356 section as well as provide for prompting through dialog boxes in 13357 a window system and the like. 13358 13359 *Richard Levitte* 13360 13361 * Add "ex_data" support to ENGINE so implementations can add state at a 13362 per-structure level rather than having to store it globally. 13363 13364 *Geoff* 13365 13366 * Make it possible for ENGINE structures to be copied when retrieved by 13367 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13368 This causes the "original" ENGINE structure to act like a template, 13369 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13370 operational state can be localised to each ENGINE structure, despite the 13371 fact they all share the same "methods". New ENGINE structures returned in 13372 this case have no functional references and the return value is the single 13373 structural reference. This matches the single structural reference returned 13374 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13375 ENGINE structure. 13376 13377 *Geoff* 13378 13379 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13380 needs to match any other type at all we need to manually clear the 13381 tag cache. 13382 13383 *Steve Henson* 13384 13385 * Changes to the "openssl engine" utility to include; 13386 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13387 about an ENGINE's available control commands. 13388 - executing control commands from command line arguments using the 13389 '-pre' and '-post' switches. '-post' is only used if '-t' is 13390 specified and the ENGINE is successfully initialised. The syntax for 13391 the individual commands are colon-separated, for example; 13392 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13393 13394 *Geoff* 13395 13396 * New dynamic control command support for ENGINEs. ENGINEs can now 13397 declare their own commands (numbers), names (strings), descriptions, 13398 and input types for run-time discovery by calling applications. A 13399 subset of these commands are implicitly classed as "executable" 13400 depending on their input type, and only these can be invoked through 13401 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13402 can be based on user input, config files, etc). The distinction is 13403 that "executable" commands cannot return anything other than a boolean 13404 result and can only support numeric or string input, whereas some 13405 discoverable commands may only be for direct use through 13406 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13407 pointers, or other custom uses. The "executable" commands are to 13408 support parameterisations of ENGINE behaviour that can be 13409 unambiguously defined by ENGINEs and used consistently across any 13410 OpenSSL-based application. Commands have been added to all the 13411 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13412 control over shared-library paths without source code alterations. 13413 13414 *Geoff* 13415 13416 * Changed all ENGINE implementations to dynamically allocate their 13417 ENGINEs rather than declaring them statically. Apart from this being 13418 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13419 this also allows the implementations to compile without using the 13420 internal engine_int.h header. 13421 13422 *Geoff* 13423 13424 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13425 'const' value. Any code that should be able to modify a RAND_METHOD 13426 should already have non-const pointers to it (ie. they should only 13427 modify their own ones). 13428 13429 *Geoff* 13430 13431 * Made a variety of little tweaks to the ENGINE code. 13432 - "atalla" and "ubsec" string definitions were moved from header files 13433 to C code. "nuron" string definitions were placed in variables 13434 rather than hard-coded - allowing parameterisation of these values 13435 later on via ctrl() commands. 13436 - Removed unused "#if 0"'d code. 13437 - Fixed engine list iteration code so it uses ENGINE_free() to release 13438 structural references. 13439 - Constified the RAND_METHOD element of ENGINE structures. 13440 - Constified various get/set functions as appropriate and added 13441 missing functions (including a catch-all ENGINE_cpy that duplicates 13442 all ENGINE values onto a new ENGINE except reference counts/state). 13443 - Removed NULL parameter checks in get/set functions. Setting a method 13444 or function to NULL is a way of cancelling out a previously set 13445 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13446 and doesn't justify the extra error symbols and code. 13447 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13448 flags from engine_int.h to engine.h. 13449 - Changed prototypes for ENGINE handler functions (init(), finish(), 13450 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13451 13452 *Geoff* 13453 13454 * Implement binary inversion algorithm for BN_mod_inverse in addition 13455 to the algorithm using long division. The binary algorithm can be 13456 used only if the modulus is odd. On 32-bit systems, it is faster 13457 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13458 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13459 up to 450 bits. In 64-bit environments, the binary algorithm 13460 appears to be advantageous for much longer moduli; here we use it 13461 for moduli up to 2048 bits. 13462 13463 *Bodo Moeller* 13464 13465 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13466 could not support the combine flag in choice fields. 13467 13468 *Steve Henson* 13469 13470 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13471 extensions from a certificate request to the certificate. 13472 13473 *Steve Henson* 13474 13475 * Allow multiple 'certopt' and 'nameopt' options to be separated 13476 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13477 file: this allows the display of the certificate about to be 13478 signed to be customised, to allow certain fields to be included 13479 or excluded and extension details. The old system didn't display 13480 multicharacter strings properly, omitted fields not in the policy 13481 and couldn't display additional details such as extensions. 13482 13483 *Steve Henson* 13484 13485 * Function EC_POINTs_mul for multiple scalar multiplication 13486 of an arbitrary number of elliptic curve points 13487 \sum scalars[i]*points[i], 13488 optionally including the generator defined for the EC_GROUP: 13489 scalar*generator + \sum scalars[i]*points[i]. 13490 13491 EC_POINT_mul is a simple wrapper function for the typical case 13492 that the point list has just one item (besides the optional 13493 generator). 13494 13495 *Bodo Moeller* 13496 13497 * First EC_METHODs for curves over GF(p): 13498 13499 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13500 operations and provides various method functions that can also 13501 operate with faster implementations of modular arithmetic. 13502 13503 EC_GFp_mont_method() reuses most functions that are part of 13504 EC_GFp_simple_method, but uses Montgomery arithmetic. 13505 13506 *Bodo Moeller; point addition and point doubling 13507 implementation directly derived from source code provided by 13508 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13509 13510 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13511 crypto/ec/ec_lib.c): 13512 13513 Curves are EC_GROUP objects (with an optional group generator) 13514 based on EC_METHODs that are built into the library. 13515 13516 Points are EC_POINT objects based on EC_GROUP objects. 13517 13518 Most of the framework would be able to handle curves over arbitrary 13519 finite fields, but as there are no obvious types for fields other 13520 than GF(p), some functions are limited to that for now. 13521 13522 *Bodo Moeller* 13523 13524 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13525 that the file contains a complete HTTP response. 13526 13527 *Richard Levitte* 13528 13529 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13530 change the def and num file printf format specifier from "%-40sXXX" 13531 to "%-39s XXX". The latter will always guarantee a space after the 13532 field while the former will cause them to run together if the field 13533 is 40 of more characters long. 13534 13535 *Steve Henson* 13536 13537 * Constify the cipher and digest 'method' functions and structures 13538 and modify related functions to take constant EVP_MD and EVP_CIPHER 13539 pointers. 13540 13541 *Steve Henson* 13542 13543 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13544 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13545 13546 *Bodo Moeller* 13547 13548 * Modify `EVP_Digest*()` routines so they now return values. Although the 13549 internal software routines can never fail additional hardware versions 13550 might. 13551 13552 *Steve Henson* 13553 13554 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13555 13556 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13557 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13558 13559 ASN1 error codes 13560 ERR_R_NESTED_ASN1_ERROR 13561 ... 13562 ERR_R_MISSING_ASN1_EOS 13563 were 4 .. 9, conflicting with 13564 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13565 ... 13566 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13567 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13568 13569 Add new error code 'ERR_R_INTERNAL_ERROR'. 13570 13571 *Bodo Moeller* 13572 13573 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13574 suffices. 13575 13576 *Bodo Moeller* 13577 13578 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13579 sets the subject name for a new request or supersedes the 13580 subject name in a given request. Formats that can be parsed are 13581 'CN=Some Name, OU=myOU, C=IT' 13582 and 13583 'CN=Some Name/OU=myOU/C=IT'. 13584 13585 Add options '-batch' and '-verbose' to 'openssl req'. 13586 13587 *Massimiliano Pala <madwolf@hackmasters.net>* 13588 13589 * Introduce the possibility to access global variables through 13590 functions on platform were that's the best way to handle exporting 13591 global variables in shared libraries. To enable this functionality, 13592 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13593 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13594 is normally done by Configure or something similar). 13595 13596 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13597 in the source file (foo.c) like this: 13598 13599 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13600 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13601 13602 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13603 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13604 13605 OPENSSL_DECLARE_GLOBAL(int,foo); 13606 #define foo OPENSSL_GLOBAL_REF(foo) 13607 OPENSSL_DECLARE_GLOBAL(double,bar); 13608 #define bar OPENSSL_GLOBAL_REF(bar) 13609 13610 The #defines are very important, and therefore so is including the 13611 header file everywhere where the defined globals are used. 13612 13613 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13614 of ASN.1 items, but that structure is a bit different. 13615 13616 The largest change is in util/mkdef.pl which has been enhanced with 13617 better and easier to understand logic to choose which symbols should 13618 go into the Windows .def files as well as a number of fixes and code 13619 cleanup (among others, algorithm keywords are now sorted 13620 lexicographically to avoid constant rewrites). 13621 13622 *Richard Levitte* 13623 13624 * In BN_div() keep a copy of the sign of 'num' before writing the 13625 result to 'rm' because if rm==num the value will be overwritten 13626 and produce the wrong result if 'num' is negative: this caused 13627 problems with BN_mod() and BN_nnmod(). 13628 13629 *Steve Henson* 13630 13631 * Function OCSP_request_verify(). This checks the signature on an 13632 OCSP request and verifies the signer certificate. The signer 13633 certificate is just checked for a generic purpose and OCSP request 13634 trust settings. 13635 13636 *Steve Henson* 13637 13638 * Add OCSP_check_validity() function to check the validity of OCSP 13639 responses. OCSP responses are prepared in real time and may only 13640 be a few seconds old. Simply checking that the current time lies 13641 between thisUpdate and nextUpdate max reject otherwise valid responses 13642 caused by either OCSP responder or client clock inaccuracy. Instead 13643 we allow thisUpdate and nextUpdate to fall within a certain period of 13644 the current time. The age of the response can also optionally be 13645 checked. Two new options -validity_period and -status_age added to 13646 ocsp utility. 13647 13648 *Steve Henson* 13649 13650 * If signature or public key algorithm is unrecognized print out its 13651 OID rather that just UNKNOWN. 13652 13653 *Steve Henson* 13654 13655 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13656 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13657 ID to be generated from the issuer certificate alone which can then be 13658 passed to OCSP_id_issuer_cmp(). 13659 13660 *Steve Henson* 13661 13662 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13663 ASN1 modules to export functions returning ASN1_ITEM pointers 13664 instead of the ASN1_ITEM structures themselves. This adds several 13665 new macros which allow the underlying ASN1 function/structure to 13666 be accessed transparently. As a result code should not use ASN1_ITEM 13667 references directly (such as &X509_it) but instead use the relevant 13668 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13669 use of the new ASN1 code on platforms where exporting structures 13670 is problematical (for example in shared libraries) but exporting 13671 functions returning pointers to structures is not. 13672 13673 *Steve Henson* 13674 13675 * Add support for overriding the generation of SSL/TLS session IDs. 13676 These callbacks can be registered either in an SSL_CTX or per SSL. 13677 The purpose of this is to allow applications to control, if they wish, 13678 the arbitrary values chosen for use as session IDs, particularly as it 13679 can be useful for session caching in multiple-server environments. A 13680 command-line switch for testing this (and any client code that wishes 13681 to use such a feature) has been added to "s_server". 13682 13683 *Geoff Thorpe, Lutz Jaenicke* 13684 13685 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13686 of the form `#if defined(...) || defined(...) || ...` and 13687 `#if !defined(...) && !defined(...) && ...`. This also avoids 13688 the growing number of special cases it was previously handling. 13689 13690 *Richard Levitte* 13691 13692 * Make all configuration macros available for application by making 13693 sure they are available in opensslconf.h, by giving them names starting 13694 with `OPENSSL_` to avoid conflicts with other packages and by making 13695 sure e_os2.h will cover all platform-specific cases together with 13696 opensslconf.h. 13697 Additionally, it is now possible to define configuration/platform- 13698 specific names (called "system identities"). In the C code, these 13699 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13700 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13701 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13702 what is available. 13703 13704 *Richard Levitte* 13705 13706 * New option -set_serial to 'req' and 'x509' this allows the serial 13707 number to use to be specified on the command line. Previously self 13708 signed certificates were hard coded with serial number 0 and the 13709 CA options of 'x509' had to use a serial number in a file which was 13710 auto incremented. 13711 13712 *Steve Henson* 13713 13714 * New options to 'ca' utility to support V2 CRL entry extensions. 13715 Currently CRL reason, invalidity date and hold instruction are 13716 supported. Add new CRL extensions to V3 code and some new objects. 13717 13718 *Steve Henson* 13719 13720 * New function EVP_CIPHER_CTX_set_padding() this is used to 13721 disable standard block padding (aka PKCS#5 padding) in the EVP 13722 API, which was previously mandatory. This means that the data is 13723 not padded in any way and so the total length much be a multiple 13724 of the block size, otherwise an error occurs. 13725 13726 *Steve Henson* 13727 13728 * Initial (incomplete) OCSP SSL support. 13729 13730 *Steve Henson* 13731 13732 * New function OCSP_parse_url(). This splits up a URL into its host, 13733 port and path components: primarily to parse OCSP URLs. New -url 13734 option to ocsp utility. 13735 13736 *Steve Henson* 13737 13738 * New nonce behavior. The return value of OCSP_check_nonce() now 13739 reflects the various checks performed. Applications can decide 13740 whether to tolerate certain situations such as an absent nonce 13741 in a response when one was present in a request: the ocsp application 13742 just prints out a warning. New function OCSP_add1_basic_nonce() 13743 this is to allow responders to include a nonce in a response even if 13744 the request is nonce-less. 13745 13746 *Steve Henson* 13747 13748 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13749 skipped when using openssl x509 multiple times on a single input file, 13750 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13751 13752 *Bodo Moeller* 13753 13754 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 13755 set string type: to handle setting ASN1_TIME structures. Fix ca 13756 utility to correctly initialize revocation date of CRLs. 13757 13758 *Steve Henson* 13759 13760 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 13761 the clients preferred ciphersuites and rather use its own preferences. 13762 Should help to work around M$ SGC (Server Gated Cryptography) bug in 13763 Internet Explorer by ensuring unchanged hash method during stepup. 13764 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 13765 13766 *Lutz Jaenicke* 13767 13768 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 13769 to aes and add a new 'exist' option to print out symbols that don't 13770 appear to exist. 13771 13772 *Steve Henson* 13773 13774 * Additional options to ocsp utility to allow flags to be set and 13775 additional certificates supplied. 13776 13777 *Steve Henson* 13778 13779 * Add the option -VAfile to 'openssl ocsp', so the user can give the 13780 OCSP client a number of certificate to only verify the response 13781 signature against. 13782 13783 *Richard Levitte* 13784 13785 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 13786 handle the new API. Currently only ECB, CBC modes supported. Add new 13787 AES OIDs. 13788 13789 Add TLS AES ciphersuites as described in RFC3268, "Advanced 13790 Encryption Standard (AES) Ciphersuites for Transport Layer 13791 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 13792 not enabled by default and were not part of the "ALL" ciphersuite 13793 alias because they were not yet official; they could be 13794 explicitly requested by specifying the "AESdraft" ciphersuite 13795 group alias. In the final release of OpenSSL 0.9.7, the group 13796 alias is called "AES" and is part of "ALL".) 13797 13798 *Ben Laurie, Steve Henson, Bodo Moeller* 13799 13800 * New function OCSP_copy_nonce() to copy nonce value (if present) from 13801 request to response. 13802 13803 *Steve Henson* 13804 13805 * Functions for OCSP responders. OCSP_request_onereq_count(), 13806 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 13807 extract information from a certificate request. OCSP_response_create() 13808 creates a response and optionally adds a basic response structure. 13809 OCSP_basic_add1_status() adds a complete single response to a basic 13810 response and returns the OCSP_SINGLERESP structure just added (to allow 13811 extensions to be included for example). OCSP_basic_add1_cert() adds a 13812 certificate to a basic response and OCSP_basic_sign() signs a basic 13813 response with various flags. New helper functions ASN1_TIME_check() 13814 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 13815 (converts ASN1_TIME to GeneralizedTime). 13816 13817 *Steve Henson* 13818 13819 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 13820 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 13821 structure from a certificate. X509_pubkey_digest() digests the public_key 13822 contents: this is used in various key identifiers. 13823 13824 *Steve Henson* 13825 13826 * Make sk_sort() tolerate a NULL argument. 13827 13828 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 13829 13830 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 13831 passed by the function are trusted implicitly. If any of them signed the 13832 response then it is assumed to be valid and is not verified. 13833 13834 *Steve Henson* 13835 13836 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 13837 to data. This was previously part of the PKCS7 ASN1 code. This 13838 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 13839 *Steve Henson, reported by Kenneth R. Robinette 13840 <support@securenetterm.com>* 13841 13842 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 13843 routines: without these tracing memory leaks is very painful. 13844 Fix leaks in PKCS12 and PKCS7 routines. 13845 13846 *Steve Henson* 13847 13848 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 13849 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 13850 effectively meant GeneralizedTime would never be used. Now it 13851 is initialised to -1 but X509_time_adj() now has to check the value 13852 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 13853 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 13854 *Steve Henson, reported by Kenneth R. Robinette 13855 <support@securenetterm.com>* 13856 13857 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 13858 result in a zero length in the ASN1_INTEGER structure which was 13859 not consistent with the structure when d2i_ASN1_INTEGER() was used 13860 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 13861 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 13862 where it did not print out a minus for negative ASN1_INTEGER. 13863 13864 *Steve Henson* 13865 13866 * Add summary printout to ocsp utility. The various functions which 13867 convert status values to strings have been renamed to: 13868 OCSP_response_status_str(), OCSP_cert_status_str() and 13869 OCSP_crl_reason_str() and are no longer static. New options 13870 to verify nonce values and to disable verification. OCSP response 13871 printout format cleaned up. 13872 13873 *Steve Henson* 13874 13875 * Add additional OCSP certificate checks. These are those specified 13876 in RFC2560. This consists of two separate checks: the CA of the 13877 certificate being checked must either be the OCSP signer certificate 13878 or the issuer of the OCSP signer certificate. In the latter case the 13879 OCSP signer certificate must contain the OCSP signing extended key 13880 usage. This check is performed by attempting to match the OCSP 13881 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 13882 in the OCSP_CERTID structures of the response. 13883 13884 *Steve Henson* 13885 13886 * Initial OCSP certificate verification added to OCSP_basic_verify() 13887 and related routines. This uses the standard OpenSSL certificate 13888 verify routines to perform initial checks (just CA validity) and 13889 to obtain the certificate chain. Then additional checks will be 13890 performed on the chain. Currently the root CA is checked to see 13891 if it is explicitly trusted for OCSP signing. This is used to set 13892 a root CA as a global signing root: that is any certificate that 13893 chains to that CA is an acceptable OCSP signing certificate. 13894 13895 *Steve Henson* 13896 13897 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 13898 extensions from a separate configuration file. 13899 As when reading extensions from the main configuration file, 13900 the '-extensions ...' option may be used for specifying the 13901 section to use. 13902 13903 *Massimiliano Pala <madwolf@comune.modena.it>* 13904 13905 * New OCSP utility. Allows OCSP requests to be generated or 13906 read. The request can be sent to a responder and the output 13907 parsed, outputted or printed in text form. Not complete yet: 13908 still needs to check the OCSP response validity. 13909 13910 *Steve Henson* 13911 13912 * New subcommands for 'openssl ca': 13913 `openssl ca -status <serial>` prints the status of the cert with 13914 the given serial number (according to the index file). 13915 `openssl ca -updatedb` updates the expiry status of certificates 13916 in the index file. 13917 13918 *Massimiliano Pala <madwolf@comune.modena.it>* 13919 13920 * New '-newreq-nodes' command option to CA.pl. This is like 13921 '-newreq', but calls 'openssl req' with the '-nodes' option 13922 so that the resulting key is not encrypted. 13923 13924 *Damien Miller <djm@mindrot.org>* 13925 13926 * New configuration for the GNU Hurd. 13927 13928 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 13929 13930 * Initial code to implement OCSP basic response verify. This 13931 is currently incomplete. Currently just finds the signer's 13932 certificate and verifies the signature on the response. 13933 13934 *Steve Henson* 13935 13936 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 13937 value of OPENSSLDIR. This is available via the new '-d' option 13938 to 'openssl version', and is also included in 'openssl version -a'. 13939 13940 *Bodo Moeller* 13941 13942 * Allowing defining memory allocation callbacks that will be given 13943 file name and line number information in additional arguments 13944 (a `const char*` and an int). The basic functionality remains, as 13945 well as the original possibility to just replace malloc(), 13946 realloc() and free() by functions that do not know about these 13947 additional arguments. To register and find out the current 13948 settings for extended allocation functions, the following 13949 functions are provided: 13950 13951 CRYPTO_set_mem_ex_functions 13952 CRYPTO_set_locked_mem_ex_functions 13953 CRYPTO_get_mem_ex_functions 13954 CRYPTO_get_locked_mem_ex_functions 13955 13956 These work the same way as CRYPTO_set_mem_functions and friends. 13957 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 13958 extended allocation function is enabled. 13959 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 13960 a conventional allocation function is enabled. 13961 13962 *Richard Levitte, Bodo Moeller* 13963 13964 * Finish off removing the remaining LHASH function pointer casts. 13965 There should no longer be any prototype-casting required when using 13966 the LHASH abstraction, and any casts that remain are "bugs". See 13967 the callback types and macros at the head of lhash.h for details 13968 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 13969 13970 *Geoff Thorpe* 13971 13972 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 13973 If /dev/[u]random devices are not available or do not return enough 13974 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 13975 be queried. 13976 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 13977 /etc/entropy will be queried once each in this sequence, querying stops 13978 when enough entropy was collected without querying more sockets. 13979 13980 *Lutz Jaenicke* 13981 13982 * Change the Unix RAND_poll() variant to be able to poll several 13983 random devices, as specified by DEVRANDOM, until a sufficient amount 13984 of data has been collected. We spend at most 10 ms on each file 13985 (select timeout) and read in non-blocking mode. DEVRANDOM now 13986 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 13987 (previously it was just the string "/dev/urandom"), so on typical 13988 platforms the 10 ms delay will never occur. 13989 Also separate out the Unix variant to its own file, rand_unix.c. 13990 For VMS, there's a currently-empty rand_vms.c. 13991 13992 *Richard Levitte* 13993 13994 * Move OCSP client related routines to ocsp_cl.c. These 13995 provide utility functions which an application needing 13996 to issue a request to an OCSP responder and analyse the 13997 response will typically need: as opposed to those which an 13998 OCSP responder itself would need which will be added later. 13999 14000 OCSP_request_sign() signs an OCSP request with an API similar 14001 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 14002 response. OCSP_response_get1_basic() extracts basic response 14003 from response. OCSP_resp_find_status(): finds and extracts status 14004 information from an OCSP_CERTID structure (which will be created 14005 when the request structure is built). These are built from lower 14006 level functions which work on OCSP_SINGLERESP structures but 14007 won't normally be used unless the application wishes to examine 14008 extensions in the OCSP response for example. 14009 14010 Replace nonce routines with a pair of functions. 14011 OCSP_request_add1_nonce() adds a nonce value and optionally 14012 generates a random value. OCSP_check_nonce() checks the 14013 validity of the nonce in an OCSP response. 14014 14015 *Steve Henson* 14016 14017 * Change function OCSP_request_add() to OCSP_request_add0_id(). 14018 This doesn't copy the supplied OCSP_CERTID and avoids the 14019 need to free up the newly created id. Change return type 14020 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 14021 This can then be used to add extensions to the request. 14022 Deleted OCSP_request_new(), since most of its functionality 14023 is now in OCSP_REQUEST_new() (and the case insensitive name 14024 clash) apart from the ability to set the request name which 14025 will be added elsewhere. 14026 14027 *Steve Henson* 14028 14029 * Update OCSP API. Remove obsolete extensions argument from 14030 various functions. Extensions are now handled using the new 14031 OCSP extension code. New simple OCSP HTTP function which 14032 can be used to send requests and parse the response. 14033 14034 *Steve Henson* 14035 14036 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 14037 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 14038 uses the special reorder version of SET OF to sort the attributes 14039 and reorder them to match the encoded order. This resolves a long 14040 standing problem: a verify on a PKCS7 structure just after signing 14041 it used to fail because the attribute order did not match the 14042 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 14043 it uses the received order. This is necessary to tolerate some broken 14044 software that does not order SET OF. This is handled by encoding 14045 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 14046 to produce the required SET OF. 14047 14048 *Steve Henson* 14049 14050 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 14051 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 14052 files to get correct declarations of the ASN.1 item variables. 14053 14054 *Richard Levitte* 14055 14056 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 14057 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 14058 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 14059 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 14060 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 14061 ASN1_ITEM and no wrapper functions. 14062 14063 *Steve Henson* 14064 14065 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 14066 replace the old function pointer based I/O routines. Change most of 14067 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 14068 14069 *Steve Henson* 14070 14071 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 14072 lines, recognize more "algorithms" that can be deselected, and make 14073 it complain about algorithm deselection that isn't recognised. 14074 14075 *Richard Levitte* 14076 14077 * New ASN1 functions to handle dup, sign, verify, digest, pack and 14078 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 14079 to use new functions. Add NO_ASN1_OLD which can be set to remove 14080 some old style ASN1 functions: this can be used to determine if old 14081 code will still work when these eventually go away. 14082 14083 *Steve Henson* 14084 14085 * New extension functions for OCSP structures, these follow the 14086 same conventions as certificates and CRLs. 14087 14088 *Steve Henson* 14089 14090 * New function X509V3_add1_i2d(). This automatically encodes and 14091 adds an extension. Its behaviour can be customised with various 14092 flags to append, replace or delete. Various wrappers added for 14093 certificates and CRLs. 14094 14095 *Steve Henson* 14096 14097 * Fix to avoid calling the underlying ASN1 print routine when 14098 an extension cannot be parsed. Correct a typo in the 14099 OCSP_SERVICELOC extension. Tidy up print OCSP format. 14100 14101 *Steve Henson* 14102 14103 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 14104 entries for variables. 14105 14106 *Steve Henson* 14107 14108 * Add functionality to `apps/openssl.c` for detecting locking 14109 problems: As the program is single-threaded, all we have 14110 to do is register a locking callback using an array for 14111 storing which locks are currently held by the program. 14112 14113 *Bodo Moeller* 14114 14115 * Use a lock around the call to CRYPTO_get_ex_new_index() in 14116 SSL_get_ex_data_X509_STORE_idx(), which is used in 14117 ssl_verify_cert_chain() and thus can be called at any time 14118 during TLS/SSL handshakes so that thread-safety is essential. 14119 Unfortunately, the ex_data design is not at all suited 14120 for multi-threaded use, so it probably should be abolished. 14121 14122 *Bodo Moeller* 14123 14124 * Added Broadcom "ubsec" ENGINE to OpenSSL. 14125 14126 *Broadcom, tweaked and integrated by Geoff Thorpe* 14127 14128 * Move common extension printing code to new function 14129 X509V3_print_extensions(). Reorganise OCSP print routines and 14130 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14131 14132 *Steve Henson* 14133 14134 * New function X509_signature_print() to remove duplication in some 14135 print routines. 14136 14137 *Steve Henson* 14138 14139 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14140 set (this was treated exactly the same as SET OF previously). This 14141 is used to reorder the STACK representing the structure to match the 14142 encoding. This will be used to get round a problem where a PKCS7 14143 structure which was signed could not be verified because the STACK 14144 order did not reflect the encoded order. 14145 14146 *Steve Henson* 14147 14148 * Reimplement the OCSP ASN1 module using the new code. 14149 14150 *Steve Henson* 14151 14152 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14153 for its ASN1 operations. The old style function pointers still exist 14154 for now but they will eventually go away. 14155 14156 *Steve Henson* 14157 14158 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14159 completely replaces the old ASN1 functionality with a table driven 14160 encoder and decoder which interprets an ASN1_ITEM structure describing 14161 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14162 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14163 has also been converted to the new form. 14164 14165 *Steve Henson* 14166 14167 * Change BN_mod_exp_recp so that negative moduli are tolerated 14168 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14169 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14170 for negative moduli. 14171 14172 *Bodo Moeller* 14173 14174 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14175 of not touching the result's sign bit. 14176 14177 *Bodo Moeller* 14178 14179 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14180 set. 14181 14182 *Bodo Moeller* 14183 14184 * Changed the LHASH code to use prototypes for callbacks, and created 14185 macros to declare and implement thin (optionally static) functions 14186 that provide type-safety and avoid function pointer casting for the 14187 type-specific callbacks. 14188 14189 *Geoff Thorpe* 14190 14191 * Added Kerberos Cipher Suites to be used with TLS, as written in 14192 RFC 2712. 14193 *Veers Staats <staatsvr@asc.hpc.mil>, 14194 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14195 14196 * Reformat the FAQ so the different questions and answers can be divided 14197 in sections depending on the subject. 14198 14199 *Richard Levitte* 14200 14201 * Have the zlib compression code load ZLIB.DLL dynamically under 14202 Windows. 14203 14204 *Richard Levitte* 14205 14206 * New function BN_mod_sqrt for computing square roots modulo a prime 14207 (using the probabilistic Tonelli-Shanks algorithm unless 14208 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14209 be handled deterministically). 14210 14211 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14212 14213 * Make BN_mod_inverse faster by explicitly handling small quotients 14214 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14215 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14216 14217 *Bodo Moeller* 14218 14219 * New function BN_kronecker. 14220 14221 *Bodo Moeller* 14222 14223 * Fix BN_gcd so that it works on negative inputs; the result is 14224 positive unless both parameters are zero. 14225 Previously something reasonably close to an infinite loop was 14226 possible because numbers could be growing instead of shrinking 14227 in the implementation of Euclid's algorithm. 14228 14229 *Bodo Moeller* 14230 14231 * Fix BN_is_word() and BN_is_one() macros to take into account the 14232 sign of the number in question. 14233 14234 Fix BN_is_word(a,w) to work correctly for w == 0. 14235 14236 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14237 because its test if the absolute value of 'a' equals 'w'. 14238 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14239 it exists mostly for use in the implementations of BN_is_zero(), 14240 BN_is_one(), and BN_is_word(). 14241 14242 *Bodo Moeller* 14243 14244 * New function BN_swap. 14245 14246 *Bodo Moeller* 14247 14248 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14249 the exponentiation functions are more likely to produce reasonable 14250 results on negative inputs. 14251 14252 *Bodo Moeller* 14253 14254 * Change BN_mod_mul so that the result is always non-negative. 14255 Previously, it could be negative if one of the factors was negative; 14256 I don't think anyone really wanted that behaviour. 14257 14258 *Bodo Moeller* 14259 14260 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14261 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14262 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14263 and add new functions: 14264 14265 BN_nnmod 14266 BN_mod_sqr 14267 BN_mod_add 14268 BN_mod_add_quick 14269 BN_mod_sub 14270 BN_mod_sub_quick 14271 BN_mod_lshift1 14272 BN_mod_lshift1_quick 14273 BN_mod_lshift 14274 BN_mod_lshift_quick 14275 14276 These functions always generate non-negative results. 14277 14278 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14279 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14280 14281 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14282 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14283 be reduced modulo `m`. 14284 14285 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14286 14287<!-- 14288 The following entry accidentally appeared in the CHANGES file 14289 distributed with OpenSSL 0.9.7. The modifications described in 14290 it do *not* apply to OpenSSL 0.9.7. 14291 14292 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14293 was actually never needed) and in BN_mul(). The removal in BN_mul() 14294 required a small change in bn_mul_part_recursive() and the addition 14295 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14296 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14297 bn_sub_words() and bn_add_words() except they take arrays with 14298 differing sizes. 14299 14300 *Richard Levitte* 14301--> 14302 14303 * In 'openssl passwd', verify passwords read from the terminal 14304 unless the '-salt' option is used (which usually means that 14305 verification would just waste user's time since the resulting 14306 hash is going to be compared with some given password hash) 14307 or the new '-noverify' option is used. 14308 14309 This is an incompatible change, but it does not affect 14310 non-interactive use of 'openssl passwd' (passwords on the command 14311 line, '-stdin' option, '-in ...' option) and thus should not 14312 cause any problems. 14313 14314 *Bodo Moeller* 14315 14316 * Remove all references to RSAref, since there's no more need for it. 14317 14318 *Richard Levitte* 14319 14320 * Make DSO load along a path given through an environment variable 14321 (SHLIB_PATH) with shl_load(). 14322 14323 *Richard Levitte* 14324 14325 * Constify the ENGINE code as a result of BIGNUM constification. 14326 Also constify the RSA code and most things related to it. In a 14327 few places, most notable in the depth of the ASN.1 code, ugly 14328 casts back to non-const were required (to be solved at a later 14329 time) 14330 14331 *Richard Levitte* 14332 14333 * Make it so the openssl application has all engines loaded by default. 14334 14335 *Richard Levitte* 14336 14337 * Constify the BIGNUM routines a little more. 14338 14339 *Richard Levitte* 14340 14341 * Add the following functions: 14342 14343 ENGINE_load_cswift() 14344 ENGINE_load_chil() 14345 ENGINE_load_atalla() 14346 ENGINE_load_nuron() 14347 ENGINE_load_builtin_engines() 14348 14349 That way, an application can itself choose if external engines that 14350 are built-in in OpenSSL shall ever be used or not. The benefit is 14351 that applications won't have to be linked with libdl or other dso 14352 libraries unless it's really needed. 14353 14354 Changed 'openssl engine' to load all engines on demand. 14355 Changed the engine header files to avoid the duplication of some 14356 declarations (they differed!). 14357 14358 *Richard Levitte* 14359 14360 * 'openssl engine' can now list capabilities. 14361 14362 *Richard Levitte* 14363 14364 * Better error reporting in 'openssl engine'. 14365 14366 *Richard Levitte* 14367 14368 * Never call load_dh_param(NULL) in s_server. 14369 14370 *Bodo Moeller* 14371 14372 * Add engine application. It can currently list engines by name and 14373 identity, and test if they are actually available. 14374 14375 *Richard Levitte* 14376 14377 * Improve RPM specification file by forcing symbolic linking and making 14378 sure the installed documentation is also owned by root.root. 14379 14380 *Damien Miller <djm@mindrot.org>* 14381 14382 * Give the OpenSSL applications more possibilities to make use of 14383 keys (public as well as private) handled by engines. 14384 14385 *Richard Levitte* 14386 14387 * Add OCSP code that comes from CertCo. 14388 14389 *Richard Levitte* 14390 14391 * Add VMS support for the Rijndael code. 14392 14393 *Richard Levitte* 14394 14395 * Added untested support for Nuron crypto accelerator. 14396 14397 *Ben Laurie* 14398 14399 * Add support for external cryptographic devices. This code was 14400 previously distributed separately as the "engine" branch. 14401 14402 *Geoff Thorpe, Richard Levitte* 14403 14404 * Rework the filename-translation in the DSO code. It is now possible to 14405 have far greater control over how a "name" is turned into a filename 14406 depending on the operating environment and any oddities about the 14407 different shared library filenames on each system. 14408 14409 *Geoff Thorpe* 14410 14411 * Support threads on FreeBSD-elf in Configure. 14412 14413 *Richard Levitte* 14414 14415 * Fix for SHA1 assembly problem with MASM: it produces 14416 warnings about corrupt line number information when assembling 14417 with debugging information. This is caused by the overlapping 14418 of two sections. 14419 14420 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14421 14422 * NCONF changes. 14423 NCONF_get_number() has no error checking at all. As a replacement, 14424 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14425 promoted strongly. The old NCONF_get_number is kept around for 14426 binary backward compatibility. 14427 Make it possible for methods to load from something other than a BIO, 14428 by providing a function pointer that is given a name instead of a BIO. 14429 For example, this could be used to load configuration data from an 14430 LDAP server. 14431 14432 *Richard Levitte* 14433 14434 * Fix for non blocking accept BIOs. Added new I/O special reason 14435 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14436 with non blocking I/O was not possible because no retry code was 14437 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14438 this case. 14439 14440 *Steve Henson* 14441 14442 * Added the beginnings of Rijndael support. 14443 14444 *Ben Laurie* 14445 14446 * Fix for bug in DirectoryString mask setting. Add support for 14447 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14448 to allow certificate printing to more controllable, additional 14449 'certopt' option to 'x509' to allow new printing options to be 14450 set. 14451 14452 *Steve Henson* 14453 14454 * Clean old EAY MD5 hack from e_os.h. 14455 14456 *Richard Levitte* 14457 14458### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14459 14460 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14461 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14462 14463 *Joe Orton, Steve Henson* 14464 14465### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14466 14467 * Fix additional bug revealed by the NISCC test suite: 14468 14469 Stop bug triggering large recursion when presented with 14470 certain ASN.1 tags ([CVE-2003-0851]) 14471 14472 *Steve Henson* 14473 14474### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14475 14476 * Fix various bugs revealed by running the NISCC test suite: 14477 14478 Stop out of bounds reads in the ASN1 code when presented with 14479 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14480 14481 If verify callback ignores invalid public key errors don't try to check 14482 certificate signature with the NULL public key. 14483 14484 *Steve Henson* 14485 14486 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14487 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14488 specifications. 14489 14490 *Steve Henson* 14491 14492 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14493 extra data after the compression methods not only for TLS 1.0 14494 but also for SSL 3.0 (as required by the specification). 14495 14496 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14497 14498 * Change X509_certificate_type() to mark the key as exported/exportable 14499 when it's 512 *bits* long, not 512 bytes. 14500 14501 *Richard Levitte* 14502 14503### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14504 14505 * Countermeasure against the Klima-Pokorny-Rosa extension of 14506 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14507 a protocol version number mismatch like a decryption error 14508 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14509 14510 *Bodo Moeller* 14511 14512 * Turn on RSA blinding by default in the default implementation 14513 to avoid a timing attack. Applications that don't want it can call 14514 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14515 They would be ill-advised to do so in most cases. 14516 14517 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14518 14519 * Change RSA blinding code so that it works when the PRNG is not 14520 seeded (in this case, the secret RSA exponent is abused as 14521 an unpredictable seed -- if it is not unpredictable, there 14522 is no point in blinding anyway). Make RSA blinding thread-safe 14523 by remembering the creator's thread ID in rsa->blinding and 14524 having all other threads use local one-time blinding factors 14525 (this requires more computation than sharing rsa->blinding, but 14526 avoids excessive locking; and if an RSA object is not shared 14527 between threads, blinding will still be very fast). 14528 14529 *Bodo Moeller* 14530 14531### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14532 14533 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14534 via timing by performing a MAC computation even if incorrect 14535 block cipher padding has been found. This is a countermeasure 14536 against active attacks where the attacker has to distinguish 14537 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14538 14539 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14540 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14541 Martin Vuagnoux (EPFL, Ilion)* 14542 14543### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14544 14545 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14546 memory from its contents. This is done with a counter that will 14547 place alternating values in each byte. This can be used to solve 14548 two issues: 1) the removal of calls to memset() by highly optimizing 14549 compilers, and 2) cleansing with other values than 0, since those can 14550 be read through on certain media, for example a swap space on disk. 14551 14552 *Geoff Thorpe* 14553 14554 * Bugfix: client side session caching did not work with external caching, 14555 because the session->cipher setting was not restored when reloading 14556 from the external cache. This problem was masked, when 14557 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14558 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14559 14560 *Lutz Jaenicke* 14561 14562 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14563 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14564 14565 *Zeev Lieber <zeev-l@yahoo.com>* 14566 14567 * Undo an undocumented change introduced in 0.9.6e which caused 14568 repeated calls to OpenSSL_add_all_ciphers() and 14569 OpenSSL_add_all_digests() to be ignored, even after calling 14570 EVP_cleanup(). 14571 14572 *Richard Levitte* 14573 14574 * Change the default configuration reader to deal with last line not 14575 being properly terminated. 14576 14577 *Richard Levitte* 14578 14579 * Change X509_NAME_cmp() so it applies the special rules on handling 14580 DN values that are of type PrintableString, as well as RDNs of type 14581 emailAddress where the value has the type ia5String. 14582 14583 *stefank@valicert.com via Richard Levitte* 14584 14585 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14586 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14587 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14588 the bitwise-OR of the two for use by the majority of applications 14589 wanting this behaviour, and update the docs. The documented 14590 behaviour and actual behaviour were inconsistent and had been 14591 changing anyway, so this is more a bug-fix than a behavioural 14592 change. 14593 14594 *Geoff Thorpe, diagnosed by Nadav Har'El* 14595 14596 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14597 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14598 14599 *Bodo Moeller* 14600 14601 * Fix initialization code race conditions in 14602 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14603 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14604 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14605 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14606 ssl2_get_cipher_by_char(), 14607 ssl3_get_cipher_by_char(). 14608 14609 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14610 14611 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14612 the cached sessions are flushed, as the remove_cb() might use ex_data 14613 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14614 (see [openssl.org #212]). 14615 14616 *Geoff Thorpe, Lutz Jaenicke* 14617 14618 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14619 length, instead of the encoding length to d2i_ASN1_OBJECT. 14620 14621 *Steve Henson* 14622 14623### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14624 14625 * [In 0.9.6g-engine release:] 14626 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14627 14628 *Lynn Gazis <lgazis@rainbow.com>* 14629 14630### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14631 14632 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14633 and get fix the header length calculation. 14634 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14635 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14636 14637 * Use proper error handling instead of 'assertions' in buffer 14638 overflow checks added in 0.9.6e. This prevents DoS (the 14639 assertions could call abort()). 14640 14641 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14642 14643### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14644 14645 * Add various sanity checks to asn1_get_length() to reject 14646 the ASN1 length bytes if they exceed sizeof(long), will appear 14647 negative or the content length exceeds the length of the 14648 supplied buffer. 14649 14650 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14651 14652 * Fix cipher selection routines: ciphers without encryption had no flags 14653 for the cipher strength set and where therefore not handled correctly 14654 by the selection routines (PR #130). 14655 14656 *Lutz Jaenicke* 14657 14658 * Fix EVP_dsa_sha macro. 14659 14660 *Nils Larsch* 14661 14662 * New option 14663 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14664 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14665 that was added in OpenSSL 0.9.6d. 14666 14667 As the countermeasure turned out to be incompatible with some 14668 broken SSL implementations, the new option is part of SSL_OP_ALL. 14669 SSL_OP_ALL is usually employed when compatibility with weird SSL 14670 implementations is desired (e.g. '-bugs' option to 's_client' and 14671 's_server'), so the new option is automatically set in many 14672 applications. 14673 14674 *Bodo Moeller* 14675 14676 * Changes in security patch: 14677 14678 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14679 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14680 Air Force Materiel Command, USAF, under agreement number 14681 F30602-01-2-0537. 14682 14683 * Add various sanity checks to asn1_get_length() to reject 14684 the ASN1 length bytes if they exceed sizeof(long), will appear 14685 negative or the content length exceeds the length of the 14686 supplied buffer. ([CVE-2002-0659]) 14687 14688 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14689 14690 * Assertions for various potential buffer overflows, not known to 14691 happen in practice. 14692 14693 *Ben Laurie (CHATS)* 14694 14695 * Various temporary buffers to hold ASCII versions of integers were 14696 too small for 64 bit platforms. ([CVE-2002-0655]) 14697 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14698 14699 * Remote buffer overflow in SSL3 protocol - an attacker could 14700 supply an oversized session ID to a client. ([CVE-2002-0656]) 14701 14702 *Ben Laurie (CHATS)* 14703 14704 * Remote buffer overflow in SSL2 protocol - an attacker could 14705 supply an oversized client master key. ([CVE-2002-0656]) 14706 14707 *Ben Laurie (CHATS)* 14708 14709### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14710 14711 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14712 encoded as NULL) with id-dsa-with-sha1. 14713 14714 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14715 14716 * Check various `X509_...()` return values in `apps/req.c`. 14717 14718 *Nils Larsch <nla@trustcenter.de>* 14719 14720 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14721 an end-of-file condition would erroneously be flagged, when the CRLF 14722 was just at the end of a processed block. The bug was discovered when 14723 processing data through a buffering memory BIO handing the data to a 14724 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14725 <ptsekov@syntrex.com> and Nedelcho Stanev. 14726 14727 *Lutz Jaenicke* 14728 14729 * Implement a countermeasure against a vulnerability recently found 14730 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14731 before application data chunks to avoid the use of known IVs 14732 with data potentially chosen by the attacker. 14733 14734 *Bodo Moeller* 14735 14736 * Fix length checks in ssl3_get_client_hello(). 14737 14738 *Bodo Moeller* 14739 14740 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14741 to prevent ssl3_read_internal() from incorrectly assuming that 14742 ssl3_read_bytes() found application data while handshake 14743 processing was enabled when in fact s->s3->in_read_app_data was 14744 merely automatically cleared during the initial handshake. 14745 14746 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14747 14748 * Fix object definitions for Private and Enterprise: they were not 14749 recognized in their shortname (=lowercase) representation. Extend 14750 obj_dat.pl to issue an error when using undefined keywords instead 14751 of silently ignoring the problem (Svenning Sorensen 14752 <sss@sss.dnsalias.net>). 14753 14754 *Lutz Jaenicke* 14755 14756 * Fix DH_generate_parameters() so that it works for 'non-standard' 14757 generators, i.e. generators other than 2 and 5. (Previously, the 14758 code did not properly initialise the 'add' and 'rem' values to 14759 BN_generate_prime().) 14760 14761 In the new general case, we do not insist that 'generator' is 14762 actually a primitive root: This requirement is rather pointless; 14763 a generator of the order-q subgroup is just as good, if not 14764 better. 14765 14766 *Bodo Moeller* 14767 14768 * Map new X509 verification errors to alerts. Discovered and submitted by 14769 Tom Wu <tom@arcot.com>. 14770 14771 *Lutz Jaenicke* 14772 14773 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 14774 returning non-zero before the data has been completely received 14775 when using non-blocking I/O. 14776 14777 *Bodo Moeller; problem pointed out by John Hughes* 14778 14779 * Some of the ciphers missed the strength entry (SSL_LOW etc). 14780 14781 *Ben Laurie, Lutz Jaenicke* 14782 14783 * Fix bug in SSL_clear(): bad sessions were not removed (found by 14784 Yoram Zahavi <YoramZ@gilian.com>). 14785 14786 *Lutz Jaenicke* 14787 14788 * Add information about CygWin 1.3 and on, and preserve proper 14789 configuration for the versions before that. 14790 14791 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 14792 14793 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 14794 check whether we deal with a copy of a session and do not delete from 14795 the cache in this case. Problem reported by "Izhar Shoshani Levi" 14796 <izhar@checkpoint.com>. 14797 14798 *Lutz Jaenicke* 14799 14800 * Do not store session data into the internal session cache, if it 14801 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 14802 flag is set). Proposed by Aslam <aslam@funk.com>. 14803 14804 *Lutz Jaenicke* 14805 14806 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 14807 value is 0. 14808 14809 *Richard Levitte* 14810 14811 * [In 0.9.6d-engine release:] 14812 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 14813 14814 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 14815 14816 * Add the configuration target linux-s390x. 14817 14818 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 14819 14820 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 14821 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 14822 variable as an indication that a ClientHello message has been 14823 received. As the flag value will be lost between multiple 14824 invocations of ssl3_accept when using non-blocking I/O, the 14825 function may not be aware that a handshake has actually taken 14826 place, thus preventing a new session from being added to the 14827 session cache. 14828 14829 To avoid this problem, we now set s->new_session to 2 instead of 14830 using a local variable. 14831 14832 *Lutz Jaenicke, Bodo Moeller* 14833 14834 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 14835 if the SSL_R_LENGTH_MISMATCH error is detected. 14836 14837 *Geoff Thorpe, Bodo Moeller* 14838 14839 * New 'shared_ldflag' column in Configure platform table. 14840 14841 *Richard Levitte* 14842 14843 * Fix EVP_CIPHER_mode macro. 14844 14845 *"Dan S. Camper" <dan@bti.net>* 14846 14847 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 14848 type, we must throw them away by setting rr->length to 0. 14849 14850 *D P Chang <dpc@qualys.com>* 14851 14852### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 14853 14854 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 14855 <Dominikus.Scherkl@biodata.com>. (The previous implementation 14856 worked incorrectly for those cases where range = `10..._2` and 14857 `3*range` is two bits longer than range.) 14858 14859 *Bodo Moeller* 14860 14861 * Only add signing time to PKCS7 structures if it is not already 14862 present. 14863 14864 *Steve Henson* 14865 14866 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 14867 OBJ_ld_ce should be OBJ_id_ce. 14868 Also some ip-pda OIDs in crypto/objects/objects.txt were 14869 incorrect (cf. RFC 3039). 14870 14871 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 14872 14873 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 14874 returns early because it has nothing to do. 14875 14876 *Andy Schneider <andy.schneider@bjss.co.uk>* 14877 14878 * [In 0.9.6c-engine release:] 14879 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 14880 14881 *Andy Schneider <andy.schneider@bjss.co.uk>* 14882 14883 * [In 0.9.6c-engine release:] 14884 Add support for Cryptographic Appliance's keyserver technology. 14885 (Use engine 'keyclient') 14886 14887 *Cryptographic Appliances and Geoff Thorpe* 14888 14889 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 14890 is called via tools/c89.sh because arguments have to be 14891 rearranged (all '-L' options must appear before the first object 14892 modules). 14893 14894 *Richard Shapiro <rshapiro@abinitio.com>* 14895 14896 * [In 0.9.6c-engine release:] 14897 Add support for Broadcom crypto accelerator cards, backported 14898 from 0.9.7. 14899 14900 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 14901 14902 * [In 0.9.6c-engine release:] 14903 Add support for SureWare crypto accelerator cards from 14904 Baltimore Technologies. (Use engine 'sureware') 14905 14906 *Baltimore Technologies and Mark Cox* 14907 14908 * [In 0.9.6c-engine release:] 14909 Add support for crypto accelerator cards from Accelerated 14910 Encryption Processing, www.aep.ie. (Use engine 'aep') 14911 14912 *AEP Inc. and Mark Cox* 14913 14914 * Add a configuration entry for gcc on UnixWare. 14915 14916 *Gary Benson <gbenson@redhat.com>* 14917 14918 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 14919 messages are stored in a single piece (fixed-length part and 14920 variable-length part combined) and fix various bugs found on the way. 14921 14922 *Bodo Moeller* 14923 14924 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 14925 instead. BIO_gethostbyname() does not know what timeouts are 14926 appropriate, so entries would stay in cache even when they have 14927 become invalid. 14928 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 14929 14930 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 14931 faced with a pathologically small ClientHello fragment that does 14932 not contain client_version: Instead of aborting with an error, 14933 simply choose the highest available protocol version (i.e., 14934 TLS 1.0 unless it is disabled). In practice, ClientHello 14935 messages are never sent like this, but this change gives us 14936 strictly correct behaviour at least for TLS. 14937 14938 *Bodo Moeller* 14939 14940 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 14941 never resets s->method to s->ctx->method when called from within 14942 one of the SSL handshake functions. 14943 14944 *Bodo Moeller; problem pointed out by Niko Baric* 14945 14946 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 14947 (sent using the client's version number) if client_version is 14948 smaller than the protocol version in use. Also change 14949 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 14950 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 14951 the client will at least see that alert. 14952 14953 *Bodo Moeller* 14954 14955 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 14956 correctly. 14957 14958 *Bodo Moeller* 14959 14960 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 14961 client receives HelloRequest while in a handshake. 14962 14963 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 14964 14965 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 14966 should end in 'break', not 'goto end' which circumvents various 14967 cleanups done in state SSL_ST_OK. But session related stuff 14968 must be disabled for SSL_ST_OK in the case that we just sent a 14969 HelloRequest. 14970 14971 Also avoid some overhead by not calling ssl_init_wbio_buffer() 14972 before just sending a HelloRequest. 14973 14974 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 14975 14976 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 14977 reveal whether illegal block cipher padding was found or a MAC 14978 verification error occurred. (Neither SSLerr() codes nor alerts 14979 are directly visible to potential attackers, but the information 14980 may leak via logfiles.) 14981 14982 Similar changes are not required for the SSL 2.0 implementation 14983 because the number of padding bytes is sent in clear for SSL 2.0, 14984 and the extra bytes are just ignored. However ssl/s2_pkt.c 14985 failed to verify that the purported number of padding bytes is in 14986 the legal range. 14987 14988 *Bodo Moeller* 14989 14990 * Add OpenUNIX-8 support including shared libraries 14991 (Boyd Lynn Gerber <gerberb@zenez.com>). 14992 14993 *Lutz Jaenicke* 14994 14995 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 14996 'wristwatch attack' using huge encoding parameters (cf. 14997 James H. Manger's CRYPTO 2001 paper). Note that the 14998 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 14999 encoding parameters and hence was not vulnerable. 15000 15001 *Bodo Moeller* 15002 15003 * BN_sqr() bug fix. 15004 15005 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 15006 15007 * Rabin-Miller test analyses assume uniformly distributed witnesses, 15008 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 15009 followed by modular reduction. 15010 15011 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 15012 15013 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 15014 equivalent based on BN_pseudo_rand() instead of BN_rand(). 15015 15016 *Bodo Moeller* 15017 15018 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 15019 This function was broken, as the check for a new client hello message 15020 to handle SGC did not allow these large messages. 15021 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 15022 15023 *Lutz Jaenicke* 15024 15025 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 15026 15027 *Lutz Jaenicke* 15028 15029 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 15030 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 15031 15032 *Lutz Jaenicke* 15033 15034 * Rework the configuration and shared library support for Tru64 Unix. 15035 The configuration part makes use of modern compiler features and 15036 still retains old compiler behavior for those that run older versions 15037 of the OS. The shared library support part includes a variant that 15038 uses the RPATH feature, and is available through the special 15039 configuration target "alpha-cc-rpath", which will never be selected 15040 automatically. 15041 15042 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 15043 15044 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 15045 with the same message size as in ssl3_get_certificate_request(). 15046 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 15047 messages might inadvertently be reject as too long. 15048 15049 *Petr Lampa <lampa@fee.vutbr.cz>* 15050 15051 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 15052 15053 *Andy Polyakov* 15054 15055 * Modified SSL library such that the verify_callback that has been set 15056 specifically for an SSL object with SSL_set_verify() is actually being 15057 used. Before the change, a verify_callback set with this function was 15058 ignored and the verify_callback() set in the SSL_CTX at the time of 15059 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 15060 to allow the necessary settings. 15061 15062 *Lutz Jaenicke* 15063 15064 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 15065 explicitly to NULL, as at least on Solaris 8 this seems not always to be 15066 done automatically (in contradiction to the requirements of the C 15067 standard). This made problems when used from OpenSSH. 15068 15069 *Lutz Jaenicke* 15070 15071 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 15072 dh->length and always used 15073 15074 BN_rand_range(priv_key, dh->p). 15075 15076 BN_rand_range() is not necessary for Diffie-Hellman, and this 15077 specific range makes Diffie-Hellman unnecessarily inefficient if 15078 dh->length (recommended exponent length) is much smaller than the 15079 length of dh->p. We could use BN_rand_range() if the order of 15080 the subgroup was stored in the DH structure, but we only have 15081 dh->length. 15082 15083 So switch back to 15084 15085 BN_rand(priv_key, l, ...) 15086 15087 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 15088 otherwise. 15089 15090 *Bodo Moeller* 15091 15092 * In 15093 15094 RSA_eay_public_encrypt 15095 RSA_eay_private_decrypt 15096 RSA_eay_private_encrypt (signing) 15097 RSA_eay_public_decrypt (signature verification) 15098 15099 (default implementations for RSA_public_encrypt, 15100 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 15101 always reject numbers >= n. 15102 15103 *Bodo Moeller* 15104 15105 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 15106 to synchronize access to 'locking_thread'. This is necessary on 15107 systems where access to 'locking_thread' (an 'unsigned long' 15108 variable) is not atomic. 15109 15110 *Bodo Moeller* 15111 15112 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 15113 *before* setting the 'crypto_lock_rand' flag. The previous code had 15114 a race condition if 0 is a valid thread ID. 15115 15116 *Travis Vitek <vitek@roguewave.com>* 15117 15118 * Add support for shared libraries under Irix. 15119 15120 *Albert Chin-A-Young <china@thewrittenword.com>* 15121 15122 * Add configuration option to build on Linux on both big-endian and 15123 little-endian MIPS. 15124 15125 *Ralf Baechle <ralf@uni-koblenz.de>* 15126 15127 * Add the possibility to create shared libraries on HP-UX. 15128 15129 *Richard Levitte* 15130 15131### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15132 15133 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15134 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15135 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15136 PRNG state recovery was possible based on the output of 15137 one PRNG request appropriately sized to gain knowledge on 15138 'md' followed by enough consecutive 1-byte PRNG requests 15139 to traverse all of 'state'. 15140 15141 1. When updating 'md_local' (the current thread's copy of 'md') 15142 during PRNG output generation, hash all of the previous 15143 'md_local' value, not just the half used for PRNG output. 15144 15145 2. Make the number of bytes from 'state' included into the hash 15146 independent from the number of PRNG bytes requested. 15147 15148 The first measure alone would be sufficient to avoid 15149 Markku-Juhani's attack. (Actually it had never occurred 15150 to me that the half of 'md_local' used for chaining was the 15151 half from which PRNG output bytes were taken -- I had always 15152 assumed that the secret half would be used.) The second 15153 measure makes sure that additional data from 'state' is never 15154 mixed into 'md_local' in small portions; this heuristically 15155 further strengthens the PRNG. 15156 15157 *Bodo Moeller* 15158 15159 * Fix crypto/bn/asm/mips3.s. 15160 15161 *Andy Polyakov* 15162 15163 * When only the key is given to "enc", the IV is undefined. Print out 15164 an error message in this case. 15165 15166 *Lutz Jaenicke* 15167 15168 * Handle special case when X509_NAME is empty in X509 printing routines. 15169 15170 *Steve Henson* 15171 15172 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15173 positive and less than q. 15174 15175 *Bodo Moeller* 15176 15177 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15178 used: it isn't thread safe and the add_lock_callback should handle 15179 that itself. 15180 15181 *Paul Rose <Paul.Rose@bridge.com>* 15182 15183 * Verify that incoming data obeys the block size in 15184 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15185 15186 *Bodo Moeller* 15187 15188 * Fix OAEP check. 15189 15190 *Ulf Möller, Bodo Möller* 15191 15192 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15193 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15194 when fixing the server behaviour for backwards-compatible 'client 15195 hello' messages. (Note that the attack is impractical against 15196 SSL 3.0 and TLS 1.0 anyway because length and version checking 15197 means that the probability of guessing a valid ciphertext is 15198 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15199 paper.) 15200 15201 Before 0.9.5, the countermeasure (hide the error by generating a 15202 random 'decryption result') did not work properly because 15203 ERR_clear_error() was missing, meaning that SSL_get_error() would 15204 detect the supposedly ignored error. 15205 15206 Both problems are now fixed. 15207 15208 *Bodo Moeller* 15209 15210 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15211 (previously it was 1024). 15212 15213 *Bodo Moeller* 15214 15215 * Fix for compatibility mode trust settings: ignore trust settings 15216 unless some valid trust or reject settings are present. 15217 15218 *Steve Henson* 15219 15220 * Fix for blowfish EVP: its a variable length cipher. 15221 15222 *Steve Henson* 15223 15224 * Fix various bugs related to DSA S/MIME verification. Handle missing 15225 parameters in DSA public key structures and return an error in the 15226 DSA routines if parameters are absent. 15227 15228 *Steve Henson* 15229 15230 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15231 in the current directory if neither $RANDFILE nor $HOME was set. 15232 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15233 caused some confusion to Windows users who haven't defined $HOME. 15234 Thus RAND_file_name() is changed again: e_os.h can define a 15235 DEFAULT_HOME, which will be used if $HOME is not set. 15236 For Windows, we use "C:"; on other platforms, we still require 15237 environment variables. 15238 15239 * Move 'if (!initialized) RAND_poll()' into regions protected by 15240 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15241 having multiple threads call RAND_poll() concurrently. 15242 15243 *Bodo Moeller* 15244 15245 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15246 combination of a flag and a thread ID variable. 15247 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15248 flag), *other* threads can enter ssleay_add_bytes without obeying 15249 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15250 that they do not hold after the first thread unsets add_do_not_lock). 15251 15252 *Bodo Moeller* 15253 15254 * Change bctest again: '-x' expressions are not available in all 15255 versions of 'test'. 15256 15257 *Bodo Moeller* 15258 15259### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15260 15261 * Fix a couple of memory leaks in PKCS7_dataDecode() 15262 15263 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15264 15265 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15266 the default extension for executables, if any. Also, make the perl 15267 scripts that use symlink() to test if it really exists and use "cp" 15268 if it doesn't. All this made OpenSSL compilable and installable in 15269 CygWin. 15270 15271 *Richard Levitte* 15272 15273 * Fix for asn1_GetSequence() for indefinite length constructed data. 15274 If SEQUENCE is length is indefinite just set c->slen to the total 15275 amount of data available. 15276 15277 *Steve Henson, reported by shige@FreeBSD.org* 15278 15279 *This change does not apply to 0.9.7.* 15280 15281 * Change bctest to avoid here-documents inside command substitution 15282 (workaround for FreeBSD /bin/sh bug). 15283 For compatibility with Ultrix, avoid shell functions (introduced 15284 in the bctest version that searches along $PATH). 15285 15286 *Bodo Moeller* 15287 15288 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15289 with des_encrypt() defined on some operating systems, like Solaris 15290 and UnixWare. 15291 15292 *Richard Levitte* 15293 15294 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15295 On the Importance of Eliminating Errors in Cryptographic 15296 Computations, J. Cryptology 14 (2001) 2, 101-119, 15297 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15298 15299 *Ulf Moeller* 15300 15301 * MIPS assembler BIGNUM division bug fix. 15302 15303 *Andy Polyakov* 15304 15305 * Disabled incorrect Alpha assembler code. 15306 15307 *Richard Levitte* 15308 15309 * Fix PKCS#7 decode routines so they correctly update the length 15310 after reading an EOC for the EXPLICIT tag. 15311 15312 *Steve Henson* 15313 15314 *This change does not apply to 0.9.7.* 15315 15316 * Fix bug in PKCS#12 key generation routines. This was triggered 15317 if a 3DES key was generated with a 0 initial byte. Include 15318 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15319 (but broken) behaviour. 15320 15321 *Steve Henson* 15322 15323 * Enhance bctest to search for a working bc along $PATH and print 15324 it when found. 15325 15326 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15327 15328 * Fix memory leaks in err.c: free err_data string if necessary; 15329 don't write to the wrong index in ERR_set_error_data. 15330 15331 *Bodo Moeller* 15332 15333 * Implement ssl23_peek (analogous to ssl23_read), which previously 15334 did not exist. 15335 15336 *Bodo Moeller* 15337 15338 * Replace rdtsc with `_emit` statements for VC++ version 5. 15339 15340 *Jeremy Cooper <jeremy@baymoo.org>* 15341 15342 * Make it possible to reuse SSLv2 sessions. 15343 15344 *Richard Levitte* 15345 15346 * In copy_email() check for >= 0 as a return value for 15347 X509_NAME_get_index_by_NID() since 0 is a valid index. 15348 15349 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15350 15351 * Avoid coredump with unsupported or invalid public keys by checking if 15352 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15353 PKCS7_verify() fails with non detached data. 15354 15355 *Steve Henson* 15356 15357 * Don't use getenv in library functions when run as setuid/setgid. 15358 New function OPENSSL_issetugid(). 15359 15360 *Ulf Moeller* 15361 15362 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15363 due to incorrect handling of multi-threading: 15364 15365 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15366 15367 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15368 15369 3. Count how many times MemCheck_off() has been called so that 15370 nested use can be treated correctly. This also avoids 15371 inband-signalling in the previous code (which relied on the 15372 assumption that thread ID 0 is impossible). 15373 15374 *Bodo Moeller* 15375 15376 * Add "-rand" option also to s_client and s_server. 15377 15378 *Lutz Jaenicke* 15379 15380 * Fix CPU detection on Irix 6.x. 15381 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15382 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15383 15384 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15385 was empty. 15386 15387 *Steve Henson* 15388 15389 *This change does not apply to 0.9.7.* 15390 15391 * Use the cached encoding of an X509_NAME structure rather than 15392 copying it. This is apparently the reason for the libsafe "errors" 15393 but the code is actually correct. 15394 15395 *Steve Henson* 15396 15397 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15398 Bleichenbacher's DSA attack. 15399 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15400 to be set and top=0 forces the highest bit to be set; top=-1 is new 15401 and leaves the highest bit random. 15402 15403 *Ulf Moeller, Bodo Moeller* 15404 15405 * In the `NCONF_...`-based implementations for `CONF_...` queries 15406 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15407 a temporary CONF structure with the data component set to NULL 15408 (which gives segmentation faults in lh_retrieve). 15409 Instead, use NULL for the CONF pointer in CONF_get_string and 15410 CONF_get_number (which may use environment variables) and directly 15411 return NULL from CONF_get_section. 15412 15413 *Bodo Moeller* 15414 15415 * Fix potential buffer overrun for EBCDIC. 15416 15417 *Ulf Moeller* 15418 15419 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15420 keyUsage if basicConstraints absent for a CA. 15421 15422 *Steve Henson* 15423 15424 * Make SMIME_write_PKCS7() write mail header values with a format that 15425 is more generally accepted (no spaces before the semicolon), since 15426 some programs can't parse those values properly otherwise. Also make 15427 sure BIO's that break lines after each write do not create invalid 15428 headers. 15429 15430 *Richard Levitte* 15431 15432 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15433 macros previously used would not encode an empty SEQUENCE OF 15434 and break the signature. 15435 15436 *Steve Henson* 15437 15438 *This change does not apply to 0.9.7.* 15439 15440 * Zero the premaster secret after deriving the master secret in 15441 DH ciphersuites. 15442 15443 *Steve Henson* 15444 15445 * Add some EVP_add_digest_alias registrations (as found in 15446 OpenSSL_add_all_digests()) to SSL_library_init() 15447 aka OpenSSL_add_ssl_algorithms(). This provides improved 15448 compatibility with peers using X.509 certificates 15449 with unconventional AlgorithmIdentifier OIDs. 15450 15451 *Bodo Moeller* 15452 15453 * Fix for Irix with NO_ASM. 15454 15455 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15456 15457 * ./config script fixes. 15458 15459 *Ulf Moeller, Richard Levitte* 15460 15461 * Fix 'openssl passwd -1'. 15462 15463 *Bodo Moeller* 15464 15465 * Change PKCS12_key_gen_asc() so it can cope with non null 15466 terminated strings whose length is passed in the passlen 15467 parameter, for example from PEM callbacks. This was done 15468 by adding an extra length parameter to asc2uni(). 15469 15470 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15471 15472 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15473 call failed, free the DSA structure. 15474 15475 *Bodo Moeller* 15476 15477 * Fix to uni2asc() to cope with zero length Unicode strings. 15478 These are present in some PKCS#12 files. 15479 15480 *Steve Henson* 15481 15482 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15483 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15484 when writing a 32767 byte record. 15485 15486 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15487 15488 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15489 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15490 15491 (RSA objects have a reference count access to which is protected 15492 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15493 so they are meant to be shared between threads.) 15494 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15495 "Reddie, Steven" <Steven.Reddie@ca.com>* 15496 15497 * Fix a deadlock in CRYPTO_mem_leaks(). 15498 15499 *Bodo Moeller* 15500 15501 * Use better test patterns in bntest. 15502 15503 *Ulf Möller* 15504 15505 * rand_win.c fix for Borland C. 15506 15507 *Ulf Möller* 15508 15509 * BN_rshift bugfix for n == 0. 15510 15511 *Bodo Moeller* 15512 15513 * Add a 'bctest' script that checks for some known 'bc' bugs 15514 so that 'make test' does not abort just because 'bc' is broken. 15515 15516 *Bodo Moeller* 15517 15518 * Store verify_result within SSL_SESSION also for client side to 15519 avoid potential security hole. (Re-used sessions on the client side 15520 always resulted in verify_result==X509_V_OK, not using the original 15521 result of the server certificate verification.) 15522 15523 *Lutz Jaenicke* 15524 15525 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15526 SSL3_RT_APPLICATION_DATA, return 0. 15527 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15528 15529 *Bodo Moeller* 15530 15531 * Fix SSL_peek: 15532 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15533 releases, have been re-implemented by renaming the previous 15534 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15535 and ssl3_read_internal, respectively, and adding 'peek' parameters 15536 to them. The new ssl[23]_{read,peek} functions are calls to 15537 ssl[23]_read_internal with the 'peek' flag set appropriately. 15538 A 'peek' parameter has also been added to ssl3_read_bytes, which 15539 does the actual work for ssl3_read_internal. 15540 15541 *Bodo Moeller* 15542 15543 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15544 the method-specific "init()" handler. Also clean up ex_data after 15545 calling the method-specific "finish()" handler. Previously, this was 15546 happening the other way round. 15547 15548 *Geoff Thorpe* 15549 15550 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15551 The previous value, 12, was not always sufficient for BN_mod_exp(). 15552 15553 *Bodo Moeller* 15554 15555 * Make sure that shared libraries get the internal name engine with 15556 the full version number and not just 0. This should mark the 15557 shared libraries as not backward compatible. Of course, this should 15558 be changed again when we can guarantee backward binary compatibility. 15559 15560 *Richard Levitte* 15561 15562 * Fix typo in get_cert_by_subject() in by_dir.c 15563 15564 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15565 15566 * Rework the system to generate shared libraries: 15567 15568 - Make note of the expected extension for the shared libraries and 15569 if there is a need for symbolic links from for example libcrypto.so.0 15570 to libcrypto.so.0.9.7. There is extended info in Configure for 15571 that. 15572 15573 - Make as few rebuilds of the shared libraries as possible. 15574 15575 - Still avoid linking the OpenSSL programs with the shared libraries. 15576 15577 - When installing, install the shared libraries separately from the 15578 static ones. 15579 15580 *Richard Levitte* 15581 15582 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15583 15584 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15585 and not in SSL_clear because the latter is also used by the 15586 accept/connect functions; previously, the settings made by 15587 SSL_set_read_ahead would be lost during the handshake. 15588 15589 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15590 15591 * Correct util/mkdef.pl to be selective about disabled algorithms. 15592 Previously, it would create entries for disabled algorithms no 15593 matter what. 15594 15595 *Richard Levitte* 15596 15597 * Added several new manual pages for SSL_* function. 15598 15599 *Lutz Jaenicke* 15600 15601### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15602 15603 * In ssl23_get_client_hello, generate an error message when faced 15604 with an initial SSL 3.0/TLS record that is too small to contain the 15605 first two bytes of the ClientHello message, i.e. client_version. 15606 (Note that this is a pathologic case that probably has never happened 15607 in real life.) The previous approach was to use the version number 15608 from the record header as a substitute; but our protocol choice 15609 should not depend on that one because it is not authenticated 15610 by the Finished messages. 15611 15612 *Bodo Moeller* 15613 15614 * More robust randomness gathering functions for Windows. 15615 15616 *Jeffrey Altman <jaltman@columbia.edu>* 15617 15618 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15619 not set then we don't setup the error code for issuer check errors 15620 to avoid possibly overwriting other errors which the callback does 15621 handle. If an application does set the flag then we assume it knows 15622 what it is doing and can handle the new informational codes 15623 appropriately. 15624 15625 *Steve Henson* 15626 15627 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15628 a general "ANY" type, as such it should be able to decode anything 15629 including tagged types. However it didn't check the class so it would 15630 wrongly interpret tagged types in the same way as their universal 15631 counterpart and unknown types were just rejected. Changed so that the 15632 tagged and unknown types are handled in the same way as a SEQUENCE: 15633 that is the encoding is stored intact. There is also a new type 15634 "V_ASN1_OTHER" which is used when the class is not universal, in this 15635 case we have no idea what the actual type is so we just lump them all 15636 together. 15637 15638 *Steve Henson* 15639 15640 * On VMS, stdout may very well lead to a file that is written to 15641 in a record-oriented fashion. That means that every write() will 15642 write a separate record, which will be read separately by the 15643 programs trying to read from it. This can be very confusing. 15644 15645 The solution is to put a BIO filter in the way that will buffer 15646 text until a linefeed is reached, and then write everything a 15647 line at a time, so every record written will be an actual line, 15648 not chunks of lines and not (usually doesn't happen, but I've 15649 seen it once) several lines in one record. BIO_f_linebuffer() is 15650 the answer. 15651 15652 Currently, it's a VMS-only method, because that's where it has 15653 been tested well enough. 15654 15655 *Richard Levitte* 15656 15657 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15658 it can return incorrect results. 15659 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15660 but it was in 0.9.6-beta[12].) 15661 15662 *Bodo Moeller* 15663 15664 * Disable the check for content being present when verifying detached 15665 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15666 include zero length content when signing messages. 15667 15668 *Steve Henson* 15669 15670 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15671 BIO_ctrl (for BIO pairs). 15672 15673 *Bodo Möller* 15674 15675 * Add DSO method for VMS. 15676 15677 *Richard Levitte* 15678 15679 * Bug fix: Montgomery multiplication could produce results with the 15680 wrong sign. 15681 15682 *Ulf Möller* 15683 15684 * Add RPM specification openssl.spec and modify it to build three 15685 packages. The default package contains applications, application 15686 documentation and run-time libraries. The devel package contains 15687 include files, static libraries and function documentation. The 15688 doc package contains the contents of the doc directory. The original 15689 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15690 15691 *Richard Levitte* 15692 15693 * Add a large number of documentation files for many SSL routines. 15694 15695 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15696 15697 * Add a configuration entry for Sony News 4. 15698 15699 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15700 15701 * Don't set the two most significant bits to one when generating a 15702 random number < q in the DSA library. 15703 15704 *Ulf Möller* 15705 15706 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15707 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15708 the underlying transport is blocking) if a handshake took place. 15709 (The default behaviour is needed by applications such as s_client 15710 and s_server that use select() to determine when to use SSL_read; 15711 but for applications that know in advance when to expect data, it 15712 just makes things more complicated.) 15713 15714 *Bodo Moeller* 15715 15716 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15717 from EGD. 15718 15719 *Ben Laurie* 15720 15721 * Add a few more EBCDIC conditionals that make `req` and `x509` 15722 work better on such systems. 15723 15724 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15725 15726 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15727 Update PKCS12_parse() so it copies the friendlyName and the 15728 keyid to the certificates aux info. 15729 15730 *Steve Henson* 15731 15732 * Fix bug in PKCS7_verify() which caused an infinite loop 15733 if there was more than one signature. 15734 15735 *Sven Uszpelkat <su@celocom.de>* 15736 15737 * Major change in util/mkdef.pl to include extra information 15738 about each symbol, as well as presenting variables as well 15739 as functions. This change means that there's n more need 15740 to rebuild the .num files when some algorithms are excluded. 15741 15742 *Richard Levitte* 15743 15744 * Allow the verify time to be set by an application, 15745 rather than always using the current time. 15746 15747 *Steve Henson* 15748 15749 * Phase 2 verify code reorganisation. The certificate 15750 verify code now looks up an issuer certificate by a 15751 number of criteria: subject name, authority key id 15752 and key usage. It also verifies self signed certificates 15753 by the same criteria. The main comparison function is 15754 X509_check_issued() which performs these checks. 15755 15756 Lot of changes were necessary in order to support this 15757 without completely rewriting the lookup code. 15758 15759 Authority and subject key identifier are now cached. 15760 15761 The LHASH 'certs' is X509_STORE has now been replaced 15762 by a STACK_OF(X509_OBJECT). This is mainly because an 15763 LHASH can't store or retrieve multiple objects with 15764 the same hash value. 15765 15766 As a result various functions (which were all internal 15767 use only) have changed to handle the new X509_STORE 15768 structure. This will break anything that messed round 15769 with X509_STORE internally. 15770 15771 The functions X509_STORE_add_cert() now checks for an 15772 exact match, rather than just subject name. 15773 15774 The X509_STORE API doesn't directly support the retrieval 15775 of multiple certificates matching a given criteria, however 15776 this can be worked round by performing a lookup first 15777 (which will fill the cache with candidate certificates) 15778 and then examining the cache for matches. This is probably 15779 the best we can do without throwing out X509_LOOKUP 15780 entirely (maybe later...). 15781 15782 The X509_VERIFY_CTX structure has been enhanced considerably. 15783 15784 All certificate lookup operations now go via a get_issuer() 15785 callback. Although this currently uses an X509_STORE it 15786 can be replaced by custom lookups. This is a simple way 15787 to bypass the X509_STORE hackery necessary to make this 15788 work and makes it possible to use more efficient techniques 15789 in future. A very simple version which uses a simple 15790 STACK for its trusted certificate store is also provided 15791 using X509_STORE_CTX_trusted_stack(). 15792 15793 The verify_cb() and verify() callbacks now have equivalents 15794 in the X509_STORE_CTX structure. 15795 15796 X509_STORE_CTX also has a 'flags' field which can be used 15797 to customise the verify behaviour. 15798 15799 *Steve Henson* 15800 15801 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 15802 excludes S/MIME capabilities. 15803 15804 *Steve Henson* 15805 15806 * When a certificate request is read in keep a copy of the 15807 original encoding of the signed data and use it when outputting 15808 again. Signatures then use the original encoding rather than 15809 a decoded, encoded version which may cause problems if the 15810 request is improperly encoded. 15811 15812 *Steve Henson* 15813 15814 * For consistency with other BIO_puts implementations, call 15815 buffer_write(b, ...) directly in buffer_puts instead of calling 15816 BIO_write(b, ...). 15817 15818 In BIO_puts, increment b->num_write as in BIO_write. 15819 15820 *Peter.Sylvester@EdelWeb.fr* 15821 15822 * Fix BN_mul_word for the case where the word is 0. (We have to use 15823 BN_zero, we may not return a BIGNUM with an array consisting of 15824 words set to zero.) 15825 15826 *Bodo Moeller* 15827 15828 * Avoid calling abort() from within the library when problems are 15829 detected, except if preprocessor symbols have been defined 15830 (such as REF_CHECK, BN_DEBUG etc.). 15831 15832 *Bodo Moeller* 15833 15834 * New openssl application 'rsautl'. This utility can be 15835 used for low-level RSA operations. DER public key 15836 BIO/fp routines also added. 15837 15838 *Steve Henson* 15839 15840 * New Configure entry and patches for compiling on QNX 4. 15841 15842 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 15843 15844 * A demo state-machine implementation was sponsored by 15845 Nuron (<http://www.nuron.com/>) and is now available in 15846 demos/state_machine. 15847 15848 *Ben Laurie* 15849 15850 * New options added to the 'dgst' utility for signature 15851 generation and verification. 15852 15853 *Steve Henson* 15854 15855 * Unrecognized PKCS#7 content types are now handled via a 15856 catch all ASN1_TYPE structure. This allows unsupported 15857 types to be stored as a "blob" and an application can 15858 encode and decode it manually. 15859 15860 *Steve Henson* 15861 15862 * Fix various signed/unsigned issues to make a_strex.c 15863 compile under VC++. 15864 15865 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 15866 15867 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 15868 length if passed a buffer. ASN1_INTEGER_to_BN failed 15869 if passed a NULL BN and its argument was negative. 15870 15871 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 15872 15873 * Modification to PKCS#7 encoding routines to output definite 15874 length encoding. Since currently the whole structures are in 15875 memory there's not real point in using indefinite length 15876 constructed encoding. However if OpenSSL is compiled with 15877 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 15878 15879 *Steve Henson* 15880 15881 * Added BIO_vprintf() and BIO_vsnprintf(). 15882 15883 *Richard Levitte* 15884 15885 * Added more prefixes to parse for in the strings written 15886 through a logging bio, to cover all the levels that are available 15887 through syslog. The prefixes are now: 15888 15889 PANIC, EMERG, EMR => LOG_EMERG 15890 ALERT, ALR => LOG_ALERT 15891 CRIT, CRI => LOG_CRIT 15892 ERROR, ERR => LOG_ERR 15893 WARNING, WARN, WAR => LOG_WARNING 15894 NOTICE, NOTE, NOT => LOG_NOTICE 15895 INFO, INF => LOG_INFO 15896 DEBUG, DBG => LOG_DEBUG 15897 15898 and as before, if none of those prefixes are present at the 15899 beginning of the string, LOG_ERR is chosen. 15900 15901 On Win32, the `LOG_*` levels are mapped according to this: 15902 15903 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 15904 LOG_WARNING => EVENTLOG_WARNING_TYPE 15905 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 15906 15907 *Richard Levitte* 15908 15909 * Made it possible to reconfigure with just the configuration 15910 argument "reconf" or "reconfigure". The command line arguments 15911 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 15912 and are retrieved from there when reconfiguring. 15913 15914 *Richard Levitte* 15915 15916 * MD4 implemented. 15917 15918 *Assar Westerlund <assar@sics.se>, Richard Levitte* 15919 15920 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 15921 15922 *Richard Levitte* 15923 15924 * The obj_dat.pl script was messing up the sorting of object 15925 names. The reason was that it compared the quoted version 15926 of strings as a result "OCSP" > "OCSP Signing" because 15927 " > SPACE. Changed script to store unquoted versions of 15928 names and add quotes on output. It was also omitting some 15929 names from the lookup table if they were given a default 15930 value (that is if SN is missing it is given the same 15931 value as LN and vice versa), these are now added on the 15932 grounds that if an object has a name we should be able to 15933 look it up. Finally added warning output when duplicate 15934 short or long names are found. 15935 15936 *Steve Henson* 15937 15938 * Changes needed for Tandem NSK. 15939 15940 *Scott Uroff <scott@xypro.com>* 15941 15942 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 15943 RSA_padding_check_SSLv23(), special padding was never detected 15944 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 15945 version rollback attacks was not effective. 15946 15947 In s23_clnt.c, don't use special rollback-attack detection padding 15948 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 15949 client; similarly, in s23_srvr.c, don't do the rollback check if 15950 SSL 2.0 is the only protocol enabled in the server. 15951 15952 *Bodo Moeller* 15953 15954 * Make it possible to get hexdumps of unprintable data with 'openssl 15955 asn1parse'. By implication, the functions ASN1_parse_dump() and 15956 BIO_dump_indent() are added. 15957 15958 *Richard Levitte* 15959 15960 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 15961 these print out strings and name structures based on various 15962 flags including RFC2253 support and proper handling of 15963 multibyte characters. Added options to the 'x509' utility 15964 to allow the various flags to be set. 15965 15966 *Steve Henson* 15967 15968 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 15969 Also change the functions X509_cmp_current_time() and 15970 X509_gmtime_adj() work with an ASN1_TIME structure, 15971 this will enable certificates using GeneralizedTime in validity 15972 dates to be checked. 15973 15974 *Steve Henson* 15975 15976 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 15977 negative public key encodings) on by default, 15978 NO_NEG_PUBKEY_BUG can be set to disable it. 15979 15980 *Steve Henson* 15981 15982 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 15983 content octets. An i2c_ASN1_OBJECT is unnecessary because 15984 the encoding can be trivially obtained from the structure. 15985 15986 *Steve Henson* 15987 15988 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 15989 not read locks (`CRYPTO_r_[un]lock`). 15990 15991 *Bodo Moeller* 15992 15993 * A first attempt at creating official support for shared 15994 libraries through configuration. I've kept it so the 15995 default is static libraries only, and the OpenSSL programs 15996 are always statically linked for now, but there are 15997 preparations for dynamic linking in place. 15998 This has been tested on Linux and Tru64. 15999 16000 *Richard Levitte* 16001 16002 * Randomness polling function for Win9x, as described in: 16003 Peter Gutmann, Software Generation of Practically Strong 16004 Random Numbers. 16005 16006 *Ulf Möller* 16007 16008 * Fix so PRNG is seeded in req if using an already existing 16009 DSA key. 16010 16011 *Steve Henson* 16012 16013 * New options to smime application. -inform and -outform 16014 allow alternative formats for the S/MIME message including 16015 PEM and DER. The -content option allows the content to be 16016 specified separately. This should allow things like Netscape 16017 form signing output easier to verify. 16018 16019 *Steve Henson* 16020 16021 * Fix the ASN1 encoding of tags using the 'long form'. 16022 16023 *Steve Henson* 16024 16025 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 16026 STRING types. These convert content octets to and from the 16027 underlying type. The actual tag and length octets are 16028 already assumed to have been read in and checked. These 16029 are needed because all other string types have virtually 16030 identical handling apart from the tag. By having versions 16031 of the ASN1 functions that just operate on content octets 16032 IMPLICIT tagging can be handled properly. It also allows 16033 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 16034 and ASN1_INTEGER are identical apart from the tag. 16035 16036 *Steve Henson* 16037 16038 * Change the handling of OID objects as follows: 16039 16040 - New object identifiers are inserted in objects.txt, following 16041 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 16042 - objects.pl is used to process obj_mac.num and create a new 16043 obj_mac.h. 16044 - obj_dat.pl is used to create a new obj_dat.h, using the data in 16045 obj_mac.h. 16046 16047 This is currently kind of a hack, and the perl code in objects.pl 16048 isn't very elegant, but it works as I intended. The simplest way 16049 to check that it worked correctly is to look in obj_dat.h and 16050 check the array nid_objs and make sure the objects haven't moved 16051 around (this is important!). Additions are OK, as well as 16052 consistent name changes. 16053 16054 *Richard Levitte* 16055 16056 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 16057 16058 *Bodo Moeller* 16059 16060 * Addition of the command line parameter '-rand file' to 'openssl req'. 16061 The given file adds to whatever has already been seeded into the 16062 random pool through the RANDFILE configuration file option or 16063 environment variable, or the default random state file. 16064 16065 *Richard Levitte* 16066 16067 * mkstack.pl now sorts each macro group into lexical order. 16068 Previously the output order depended on the order the files 16069 appeared in the directory, resulting in needless rewriting 16070 of safestack.h . 16071 16072 *Steve Henson* 16073 16074 * Patches to make OpenSSL compile under Win32 again. Mostly 16075 work arounds for the VC++ problem that it treats func() as 16076 func(void). Also stripped out the parts of mkdef.pl that 16077 added extra typesafe functions: these no longer exist. 16078 16079 *Steve Henson* 16080 16081 * Reorganisation of the stack code. The macros are now all 16082 collected in safestack.h . Each macro is defined in terms of 16083 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 16084 DEBUG_SAFESTACK is now handled in terms of function casts, 16085 this has the advantage of retaining type safety without the 16086 use of additional functions. If DEBUG_SAFESTACK is not defined 16087 then the non typesafe macros are used instead. Also modified the 16088 mkstack.pl script to handle the new form. Needs testing to see 16089 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 16090 the default if no major problems. Similar behaviour for ASN1_SET_OF 16091 and PKCS12_STACK_OF. 16092 16093 *Steve Henson* 16094 16095 * When some versions of IIS use the 'NET' form of private key the 16096 key derivation algorithm is different. Normally MD5(password) is 16097 used as a 128 bit RC4 key. In the modified case 16098 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 16099 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 16100 as the old Netscape_RSA functions except they have an additional 16101 'sgckey' parameter which uses the modified algorithm. Also added 16102 an -sgckey command line option to the rsa utility. Thanks to 16103 Adrian Peck <bertie@ncipher.com> for posting details of the modified 16104 algorithm to openssl-dev. 16105 16106 *Steve Henson* 16107 16108 * The evp_local.h macros were using 'c.##kname' which resulted in 16109 invalid expansion on some systems (SCO 5.0.5 for example). 16110 Corrected to 'c.kname'. 16111 16112 *Phillip Porch <root@theporch.com>* 16113 16114 * New X509_get1_email() and X509_REQ_get1_email() functions that return 16115 a STACK of email addresses from a certificate or request, these look 16116 in the subject name and the subject alternative name extensions and 16117 omit any duplicate addresses. 16118 16119 *Steve Henson* 16120 16121 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 16122 This makes DSA verification about 2 % faster. 16123 16124 *Bodo Moeller* 16125 16126 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 16127 (meaning that now 2^5 values will be precomputed, which is only 4 KB 16128 plus overhead for 1024 bit moduli). 16129 This makes exponentiations about 0.5 % faster for 1024 bit 16130 exponents (as measured by "openssl speed rsa2048"). 16131 16132 *Bodo Moeller* 16133 16134 * Rename memory handling macros to avoid conflicts with other 16135 software: 16136 Malloc => OPENSSL_malloc 16137 Malloc_locked => OPENSSL_malloc_locked 16138 Realloc => OPENSSL_realloc 16139 Free => OPENSSL_free 16140 16141 *Richard Levitte* 16142 16143 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16144 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16145 16146 *Bodo Moeller* 16147 16148 * CygWin32 support. 16149 16150 *John Jarvie <jjarvie@newsguy.com>* 16151 16152 * The type-safe stack code has been rejigged. It is now only compiled 16153 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16154 by default all type-specific stack functions are "#define"d back to 16155 standard stack functions. This results in more streamlined output 16156 but retains the type-safety checking possibilities of the original 16157 approach. 16158 16159 *Geoff Thorpe* 16160 16161 * The STACK code has been cleaned up, and certain type declarations 16162 that didn't make a lot of sense have been brought in line. This has 16163 also involved a cleanup of sorts in safestack.h to more correctly 16164 map type-safe stack functions onto their plain stack counterparts. 16165 This work has also resulted in a variety of "const"ifications of 16166 lots of the code, especially `_cmp` operations which should normally 16167 be prototyped with "const" parameters anyway. 16168 16169 *Geoff Thorpe* 16170 16171 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16172 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16173 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16174 where all of 'md' is used each time the PRNG is used, but 'state' 16175 is used only indexed by a cyclic counter. As entropy may not be 16176 well distributed from the beginning, 'md' is important as a 16177 chaining variable. However, the output function chains only half 16178 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16179 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16180 in all of 'state' being rewritten, with the new values depending 16181 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16182 16183 *Bodo Moeller* 16184 16185 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16186 the handshake is continued after ssl_verify_cert_chain(); 16187 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16188 can lead to 'unexplainable' connection aborts later. 16189 16190 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16191 16192 * Major EVP API cipher revision. 16193 Add hooks for extra EVP features. This allows various cipher 16194 parameters to be set in the EVP interface. Support added for variable 16195 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16196 setting of RC2 and RC5 parameters. 16197 16198 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16199 ciphers. 16200 16201 Remove lots of duplicated code from the EVP library. For example *every* 16202 cipher init() function handles the 'iv' in the same way according to the 16203 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16204 for CFB and OFB modes they zero ctx->num. 16205 16206 New functionality allows removal of S/MIME code RC2 hack. 16207 16208 Most of the routines have the same form and so can be declared in terms 16209 of macros. 16210 16211 By shifting this to the top level EVP_CipherInit() it can be removed from 16212 all individual ciphers. If the cipher wants to handle IVs or keys 16213 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16214 flags. 16215 16216 Change lots of functions like EVP_EncryptUpdate() to now return a 16217 value: although software versions of the algorithms cannot fail 16218 any installed hardware versions can. 16219 16220 *Steve Henson* 16221 16222 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16223 this option is set, tolerate broken clients that send the negotiated 16224 protocol version number instead of the requested protocol version 16225 number. 16226 16227 *Bodo Moeller* 16228 16229 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16230 i.e. non-zero for export ciphersuites, zero otherwise. 16231 Previous versions had this flag inverted, inconsistent with 16232 rsa_tmp_cb (..._TMP_RSA_CB). 16233 16234 *Bodo Moeller; problem reported by Amit Chopra* 16235 16236 * Add missing DSA library text string. Work around for some IIS 16237 key files with invalid SEQUENCE encoding. 16238 16239 *Steve Henson* 16240 16241 * Add a document (doc/standards.txt) that list all kinds of standards 16242 and so on that are implemented in OpenSSL. 16243 16244 *Richard Levitte* 16245 16246 * Enhance c_rehash script. Old version would mishandle certificates 16247 with the same subject name hash and wouldn't handle CRLs at all. 16248 Added -fingerprint option to crl utility, to support new c_rehash 16249 features. 16250 16251 *Steve Henson* 16252 16253 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16254 16255 *Ulf Möller* 16256 16257 * Fix for SSL server purpose checking. Server checking was 16258 rejecting certificates which had extended key usage present 16259 but no ssl client purpose. 16260 16261 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16262 16263 * Make PKCS#12 code work with no password. The PKCS#12 spec 16264 is a little unclear about how a blank password is handled. 16265 Since the password in encoded as a BMPString with terminating 16266 double NULL a zero length password would end up as just the 16267 double NULL. However no password at all is different and is 16268 handled differently in the PKCS#12 key generation code. NS 16269 treats a blank password as zero length. MSIE treats it as no 16270 password on export: but it will try both on import. We now do 16271 the same: PKCS12_parse() tries zero length and no password if 16272 the password is set to "" or NULL (NULL is now a valid password: 16273 it wasn't before) as does the pkcs12 application. 16274 16275 *Steve Henson* 16276 16277 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16278 perror when PEM_read_bio_X509_REQ fails, the error message must 16279 be obtained from the error queue. 16280 16281 *Bodo Moeller* 16282 16283 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16284 it in ERR_remove_state if appropriate, and change ERR_get_state 16285 accordingly to avoid race conditions (this is necessary because 16286 thread_hash is no longer constant once set). 16287 16288 *Bodo Moeller* 16289 16290 * Bugfix for linux-elf makefile.one. 16291 16292 *Ulf Möller* 16293 16294 * RSA_get_default_method() will now cause a default 16295 RSA_METHOD to be chosen if one doesn't exist already. 16296 Previously this was only set during a call to RSA_new() 16297 or RSA_new_method(NULL) meaning it was possible for 16298 RSA_get_default_method() to return NULL. 16299 16300 *Geoff Thorpe* 16301 16302 * Added native name translation to the existing DSO code 16303 that will convert (if the flag to do so is set) filenames 16304 that are sufficiently small and have no path information 16305 into a canonical native form. Eg. "blah" converted to 16306 "libblah.so" or "blah.dll" etc. 16307 16308 *Geoff Thorpe* 16309 16310 * New function ERR_error_string_n(e, buf, len) which is like 16311 ERR_error_string(e, buf), but writes at most 'len' bytes 16312 including the 0 terminator. For ERR_error_string_n, 'buf' 16313 may not be NULL. 16314 16315 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16316 16317 * CONF library reworked to become more general. A new CONF 16318 configuration file reader "class" is implemented as well as a 16319 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16320 old `CONF_*` functions are still there, but are reimplemented to 16321 work in terms of the new functions. Also, a set of functions 16322 to handle the internal storage of the configuration data is 16323 provided to make it easier to write new configuration file 16324 reader "classes" (I can definitely see something reading a 16325 configuration file in XML format, for example), called `_CONF_*`, 16326 or "the configuration storage API"... 16327 16328 The new configuration file reading functions are: 16329 16330 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16331 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16332 16333 NCONF_default, NCONF_WIN32 16334 16335 NCONF_dump_fp, NCONF_dump_bio 16336 16337 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16338 NCONF_new creates a new CONF object. This works in the same way 16339 as other interfaces in OpenSSL, like the BIO interface. 16340 `NCONF_dump_*` dump the internal storage of the configuration file, 16341 which is useful for debugging. All other functions take the same 16342 arguments as the old `CONF_*` functions with the exception of the 16343 first that must be a `CONF *` instead of a `LHASH *`. 16344 16345 To make it easier to use the new classes with the old `CONF_*` functions, 16346 the function CONF_set_default_method is provided. 16347 16348 *Richard Levitte* 16349 16350 * Add '-tls1' option to 'openssl ciphers', which was already 16351 mentioned in the documentation but had not been implemented. 16352 (This option is not yet really useful because even the additional 16353 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16354 16355 *Bodo Moeller* 16356 16357 * Initial DSO code added into libcrypto for letting OpenSSL (and 16358 OpenSSL-based applications) load shared libraries and bind to 16359 them in a portable way. 16360 16361 *Geoff Thorpe, with contributions from Richard Levitte* 16362 16363### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16364 16365 * Make sure _lrotl and _lrotr are only used with MSVC. 16366 16367 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16368 (the default implementation of RAND_status). 16369 16370 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16371 to '-clrext' (= clear extensions), as intended and documented. 16372 *Bodo Moeller; inconsistency pointed out by Michael Attili 16373 <attili@amaxo.com>* 16374 16375 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16376 was larger than the MD block size. 16377 16378 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16379 16380 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16381 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16382 using the passed key: if the passed key was a private key the result 16383 of X509_print(), for example, would be to print out all the private key 16384 components. 16385 16386 *Steve Henson* 16387 16388 * des_quad_cksum() byte order bug fix. 16389 *Ulf Möller, using the problem description in krb4-0.9.7, where 16390 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16391 16392 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16393 discouraged. 16394 16395 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16396 16397 * For easily testing in shell scripts whether some command 16398 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16399 returns with exit code 0 iff no command of the given name is available. 16400 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16401 the output goes to stdout and nothing is printed to stderr. 16402 Additional arguments are always ignored. 16403 16404 Since for each cipher there is a command of the same name, 16405 the 'no-cipher' compilation switches can be tested this way. 16406 16407 ('openssl no-XXX' is not able to detect pseudo-commands such 16408 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16409 16410 *Bodo Moeller* 16411 16412 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16413 16414 *Bodo Moeller* 16415 16416 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16417 is set; it will be thrown away anyway because each handshake creates 16418 its own key. 16419 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16420 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16421 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16422 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16423 16424 *Bodo Moeller* 16425 16426 * New s_client option -ign_eof: EOF at stdin is ignored, and 16427 'Q' and 'R' lose their special meanings (quit/renegotiate). 16428 This is part of what -quiet does; unlike -quiet, -ign_eof 16429 does not suppress any output. 16430 16431 *Richard Levitte* 16432 16433 * Add compatibility options to the purpose and trust code. The 16434 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16435 accepts a certificate or CA, this was the previous behaviour, 16436 with all the associated security issues. 16437 16438 X509_TRUST_COMPAT is the old trust behaviour: only and 16439 automatically trust self signed roots in certificate store. A 16440 new trust setting X509_TRUST_DEFAULT is used to specify that 16441 a purpose has no associated trust setting and it should instead 16442 use the value in the default purpose. 16443 16444 *Steve Henson* 16445 16446 * Fix the PKCS#8 DSA private key code so it decodes keys again 16447 and fix a memory leak. 16448 16449 *Steve Henson* 16450 16451 * In util/mkerr.pl (which implements 'make errors'), preserve 16452 reason strings from the previous version of the .c file, as 16453 the default to have only downcase letters (and digits) in 16454 automatically generated reasons codes is not always appropriate. 16455 16456 *Bodo Moeller* 16457 16458 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16459 using strerror. Previously, ERR_reason_error_string() returned 16460 library names as reason strings for SYSerr; but SYSerr is a special 16461 case where small numbers are errno values, not library numbers. 16462 16463 *Bodo Moeller* 16464 16465 * Add '-dsaparam' option to 'openssl dhparam' application. This 16466 converts DSA parameters into DH parameters. (When creating parameters, 16467 DSA_generate_parameters is used.) 16468 16469 *Bodo Moeller* 16470 16471 * Include 'length' (recommended exponent length) in C code generated 16472 by 'openssl dhparam -C'. 16473 16474 *Bodo Moeller* 16475 16476 * The second argument to set_label in perlasm was already being used 16477 so couldn't be used as a "file scope" flag. Moved to third argument 16478 which was free. 16479 16480 *Steve Henson* 16481 16482 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16483 instead of RAND_bytes for encryption IVs and salts. 16484 16485 *Bodo Moeller* 16486 16487 * Include RAND_status() into RAND_METHOD instead of implementing 16488 it only for md_rand.c Otherwise replacing the PRNG by calling 16489 RAND_set_rand_method would be impossible. 16490 16491 *Bodo Moeller* 16492 16493 * Don't let DSA_generate_key() enter an infinite loop if the random 16494 number generation fails. 16495 16496 *Bodo Moeller* 16497 16498 * New 'rand' application for creating pseudo-random output. 16499 16500 *Bodo Moeller* 16501 16502 * Added configuration support for Linux/IA64 16503 16504 *Rolf Haberrecker <rolf@suse.de>* 16505 16506 * Assembler module support for Mingw32. 16507 16508 *Ulf Möller* 16509 16510 * Shared library support for HPUX (in shlib/). 16511 16512 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16513 16514 * Shared library support for Solaris gcc. 16515 16516 *Lutz Behnke <behnke@trustcenter.de>* 16517 16518### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16519 16520 * PKCS7_encrypt() was adding text MIME headers twice because they 16521 were added manually and by SMIME_crlf_copy(). 16522 16523 *Steve Henson* 16524 16525 * In bntest.c don't call BN_rand with zero bits argument. 16526 16527 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16528 16529 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16530 case was implemented. This caused BN_div_recp() to fail occasionally. 16531 16532 *Ulf Möller* 16533 16534 * Add an optional second argument to the set_label() in the perl 16535 assembly language builder. If this argument exists and is set 16536 to 1 it signals that the assembler should use a symbol whose 16537 scope is the entire file, not just the current function. This 16538 is needed with MASM which uses the format label:: for this scope. 16539 16540 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16541 16542 * Change the ASN1 types so they are typedefs by default. Before 16543 almost all types were #define'd to ASN1_STRING which was causing 16544 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16545 for example. 16546 16547 *Steve Henson* 16548 16549 * Change names of new functions to the new get1/get0 naming 16550 convention: After 'get1', the caller owns a reference count 16551 and has to call `..._free`; 'get0' returns a pointer to some 16552 data structure without incrementing reference counters. 16553 (Some of the existing 'get' functions increment a reference 16554 counter, some don't.) 16555 Similarly, 'set1' and 'add1' functions increase reference 16556 counters or duplicate objects. 16557 16558 *Steve Henson* 16559 16560 * Allow for the possibility of temp RSA key generation failure: 16561 the code used to assume it always worked and crashed on failure. 16562 16563 *Steve Henson* 16564 16565 * Fix potential buffer overrun problem in BIO_printf(). 16566 *Ulf Möller, using public domain code by Patrick Powell; problem 16567 pointed out by David Sacerdote <das33@cornell.edu>* 16568 16569 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16570 RAND_egd() and RAND_status(). In the command line application, 16571 the EGD socket can be specified like a seed file using RANDFILE 16572 or -rand. 16573 16574 *Ulf Möller* 16575 16576 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16577 Some CAs (e.g. Verisign) distribute certificates in this form. 16578 16579 *Steve Henson* 16580 16581 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16582 list to exclude them. This means that no special compilation option 16583 is needed to use anonymous DH: it just needs to be included in the 16584 cipher list. 16585 16586 *Steve Henson* 16587 16588 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16589 EVP_MD_type. The old functionality is available in a new macro called 16590 EVP_MD_md(). Change code that uses it and update docs. 16591 16592 *Steve Henson* 16593 16594 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16595 where the `void *` argument is replaced by a function pointer argument. 16596 Previously `void *` was abused to point to functions, which works on 16597 many platforms, but is not correct. As these functions are usually 16598 called by macros defined in OpenSSL header files, most source code 16599 should work without changes. 16600 16601 *Richard Levitte* 16602 16603 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16604 sections with information on -D... compiler switches used for 16605 compiling the library so that applications can see them. To enable 16606 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16607 must be defined. E.g., 16608 #define OPENSSL_ALGORITHM_DEFINES 16609 #include <openssl/opensslconf.h> 16610 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16611 16612 *Richard Levitte, Ulf and Bodo Möller* 16613 16614 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16615 record layer. 16616 16617 *Bodo Moeller* 16618 16619 * Change the 'other' type in certificate aux info to a STACK_OF 16620 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16621 the required ASN1 format: arbitrary types determined by an OID. 16622 16623 *Steve Henson* 16624 16625 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16626 argument to 'req'. This is not because the function is newer or 16627 better than others it just uses the work 'NEW' in the certificate 16628 request header lines. Some software needs this. 16629 16630 *Steve Henson* 16631 16632 * Reorganise password command line arguments: now passwords can be 16633 obtained from various sources. Delete the PEM_cb function and make 16634 it the default behaviour: i.e. if the callback is NULL and the 16635 usrdata argument is not NULL interpret it as a null terminated pass 16636 phrase. If usrdata and the callback are NULL then the pass phrase 16637 is prompted for as usual. 16638 16639 *Steve Henson* 16640 16641 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16642 the support is automatically enabled. The resulting binaries will 16643 autodetect the card and use it if present. 16644 16645 *Ben Laurie and Compaq Inc.* 16646 16647 * Work around for Netscape hang bug. This sends certificate request 16648 and server done in one record. Since this is perfectly legal in the 16649 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16650 the bugs/SSLv3 entry for more info. 16651 16652 *Steve Henson* 16653 16654 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16655 16656 *Andy Polyakov* 16657 16658 * Add -rand argument to smime and pkcs12 applications and read/write 16659 of seed file. 16660 16661 *Steve Henson* 16662 16663 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16664 16665 *Bodo Moeller* 16666 16667 * Add command line password options to the remaining applications. 16668 16669 *Steve Henson* 16670 16671 * Bug fix for BN_div_recp() for numerators with an even number of 16672 bits. 16673 16674 *Ulf Möller* 16675 16676 * More tests in bntest.c, and changed test_bn output. 16677 16678 *Ulf Möller* 16679 16680 * ./config recognizes MacOS X now. 16681 16682 *Andy Polyakov* 16683 16684 * Bug fix for BN_div() when the first words of num and divisor are 16685 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16686 16687 *Ulf Möller* 16688 16689 * Add support for various broken PKCS#8 formats, and command line 16690 options to produce them. 16691 16692 *Steve Henson* 16693 16694 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16695 get temporary BIGNUMs from a BN_CTX. 16696 16697 *Ulf Möller* 16698 16699 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16700 for p == 0. 16701 16702 *Ulf Möller* 16703 16704 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16705 include a #define from the old name to the new. The original intent 16706 was that statically linked binaries could for example just call 16707 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16708 link with digests. This never worked because SSLeay_add_all_digests() 16709 and SSLeay_add_all_ciphers() were in the same source file so calling 16710 one would link with the other. They are now in separate source files. 16711 16712 *Steve Henson* 16713 16714 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16715 16716 *Steve Henson* 16717 16718 * Use a less unusual form of the Miller-Rabin primality test (it used 16719 a binary algorithm for exponentiation integrated into the Miller-Rabin 16720 loop, our standard modexp algorithms are faster). 16721 16722 *Bodo Moeller* 16723 16724 * Support for the EBCDIC character set completed. 16725 16726 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16727 16728 * Source code cleanups: use const where appropriate, eliminate casts, 16729 use `void *` instead of `char *` in lhash. 16730 16731 *Ulf Möller* 16732 16733 * Bugfix: ssl3_send_server_key_exchange was not restartable 16734 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16735 this the server could overwrite ephemeral keys that the client 16736 has already seen). 16737 16738 *Bodo Moeller* 16739 16740 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16741 using 50 iterations of the Rabin-Miller test. 16742 16743 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16744 iterations of the Rabin-Miller test as required by the appendix 16745 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16746 As BN_is_prime_fasttest includes trial division, DSA parameter 16747 generation becomes much faster. 16748 16749 This implies a change for the callback functions in DSA_is_prime 16750 and DSA_generate_parameters: The callback function is called once 16751 for each positive witness in the Rabin-Miller test, not just 16752 occasionally in the inner loop; and the parameters to the 16753 callback function now provide an iteration count for the outer 16754 loop rather than for the current invocation of the inner loop. 16755 DSA_generate_parameters additionally can call the callback 16756 function with an 'iteration count' of -1, meaning that a 16757 candidate has passed the trial division test (when q is generated 16758 from an application-provided seed, trial division is skipped). 16759 16760 *Bodo Moeller* 16761 16762 * New function BN_is_prime_fasttest that optionally does trial 16763 division before starting the Rabin-Miller test and has 16764 an additional BN_CTX * argument (whereas BN_is_prime always 16765 has to allocate at least one BN_CTX). 16766 'callback(1, -1, cb_arg)' is called when a number has passed the 16767 trial division stage. 16768 16769 *Bodo Moeller* 16770 16771 * Fix for bug in CRL encoding. The validity dates weren't being handled 16772 as ASN1_TIME. 16773 16774 *Steve Henson* 16775 16776 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 16777 16778 *Steve Henson* 16779 16780 * New function BN_pseudo_rand(). 16781 16782 *Ulf Möller* 16783 16784 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 16785 bignum version of BN_from_montgomery() with the working code from 16786 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 16787 the comments. 16788 16789 *Ulf Möller* 16790 16791 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 16792 made it impossible to use the same SSL_SESSION data structure in 16793 SSL2 clients in multiple threads. 16794 16795 *Bodo Moeller* 16796 16797 * The return value of RAND_load_file() no longer counts bytes obtained 16798 by stat(). RAND_load_file(..., -1) is new and uses the complete file 16799 to seed the PRNG (previously an explicit byte count was required). 16800 16801 *Ulf Möller, Bodo Möller* 16802 16803 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 16804 used `char *` instead of `void *` and had casts all over the place. 16805 16806 *Steve Henson* 16807 16808 * Make BN_generate_prime() return NULL on error if ret!=NULL. 16809 16810 *Ulf Möller* 16811 16812 * Retain source code compatibility for BN_prime_checks macro: 16813 BN_is_prime(..., BN_prime_checks, ...) now uses 16814 BN_prime_checks_for_size to determine the appropriate number of 16815 Rabin-Miller iterations. 16816 16817 *Ulf Möller* 16818 16819 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 16820 DH_CHECK_P_NOT_SAFE_PRIME. 16821 (Check if this is true? OpenPGP calls them "strong".) 16822 16823 *Ulf Möller* 16824 16825 * Merge the functionality of "dh" and "gendh" programs into a new program 16826 "dhparam". The old programs are retained for now but will handle DH keys 16827 (instead of parameters) in future. 16828 16829 *Steve Henson* 16830 16831 * Make the ciphers, s_server and s_client programs check the return values 16832 when a new cipher list is set. 16833 16834 *Steve Henson* 16835 16836 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 16837 ciphers. Before when the 56bit ciphers were enabled the sorting was 16838 wrong. 16839 16840 The syntax for the cipher sorting has been extended to support sorting by 16841 cipher-strength (using the strength_bits hard coded in the tables). 16842 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 16843 16844 Fix a bug in the cipher-command parser: when supplying a cipher command 16845 string with an "undefined" symbol (neither command nor alphanumeric 16846 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 16847 an error is flagged. 16848 16849 Due to the strength-sorting extension, the code of the 16850 ssl_create_cipher_list() function was completely rearranged. I hope that 16851 the readability was also increased :-) 16852 16853 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 16854 16855 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 16856 for the first serial number and places 2 in the serial number file. This 16857 avoids problems when the root CA is created with serial number zero and 16858 the first user certificate has the same issuer name and serial number 16859 as the root CA. 16860 16861 *Steve Henson* 16862 16863 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 16864 the new code. Add documentation for this stuff. 16865 16866 *Steve Henson* 16867 16868 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 16869 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 16870 structures and behave in an analogous way to the X509v3 functions: 16871 they shouldn't be called directly but wrapper functions should be used 16872 instead. 16873 16874 So we also now have some wrapper functions that call the X509at functions 16875 when passed certificate requests. (TO DO: similar things can be done with 16876 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 16877 things. Some of these need some d2i or i2d and print functionality 16878 because they handle more complex structures.) 16879 16880 *Steve Henson* 16881 16882 * Add missing #ifndefs that caused missing symbols when building libssl 16883 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 16884 NO_RSA in `ssl/s2*.c`. 16885 16886 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 16887 16888 * Precautions against using the PRNG uninitialized: RAND_bytes() now 16889 has a return value which indicates the quality of the random data 16890 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 16891 error queue. New function RAND_pseudo_bytes() generates output that is 16892 guaranteed to be unique but not unpredictable. RAND_add is like 16893 RAND_seed, but takes an extra argument for an entropy estimate 16894 (RAND_seed always assumes full entropy). 16895 16896 *Ulf Möller* 16897 16898 * Do more iterations of Rabin-Miller probable prime test (specifically, 16899 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 16900 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 16901 in crypto/bn/bn_prime.c for the complete table). This guarantees a 16902 false-positive rate of at most 2^-80 for random input. 16903 16904 *Bodo Moeller* 16905 16906 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 16907 16908 *Bodo Moeller* 16909 16910 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 16911 in the 0.9.5 release), this returns the chain 16912 from an X509_CTX structure with a dup of the stack and all 16913 the X509 reference counts upped: so the stack will exist 16914 after X509_CTX_cleanup() has been called. Modify pkcs12.c 16915 to use this. 16916 16917 Also make SSL_SESSION_print() print out the verify return 16918 code. 16919 16920 *Steve Henson* 16921 16922 * Add manpage for the pkcs12 command. Also change the default 16923 behaviour so MAC iteration counts are used unless the new 16924 -nomaciter option is used. This improves file security and 16925 only older versions of MSIE (4.0 for example) need it. 16926 16927 *Steve Henson* 16928 16929 * Honor the no-xxx Configure options when creating .DEF files. 16930 16931 *Ulf Möller* 16932 16933 * Add PKCS#10 attributes to field table: challengePassword, 16934 unstructuredName and unstructuredAddress. These are taken from 16935 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 16936 international characters are used. 16937 16938 More changes to X509_ATTRIBUTE code: allow the setting of types 16939 based on strings. Remove the 'loc' parameter when adding 16940 attributes because these will be a SET OF encoding which is sorted 16941 in ASN1 order. 16942 16943 *Steve Henson* 16944 16945 * Initial changes to the 'req' utility to allow request generation 16946 automation. This will allow an application to just generate a template 16947 file containing all the field values and have req construct the 16948 request. 16949 16950 Initial support for X509_ATTRIBUTE handling. Stacks of these are 16951 used all over the place including certificate requests and PKCS#7 16952 structures. They are currently handled manually where necessary with 16953 some primitive wrappers for PKCS#7. The new functions behave in a 16954 manner analogous to the X509 extension functions: they allow 16955 attributes to be looked up by NID and added. 16956 16957 Later something similar to the X509V3 code would be desirable to 16958 automatically handle the encoding, decoding and printing of the 16959 more complex types. The string types like challengePassword can 16960 be handled by the string table functions. 16961 16962 Also modified the multi byte string table handling. Now there is 16963 a 'global mask' which masks out certain types. The table itself 16964 can use the flag STABLE_NO_MASK to ignore the mask setting: this 16965 is useful when for example there is only one permissible type 16966 (as in countryName) and using the mask might result in no valid 16967 types at all. 16968 16969 *Steve Henson* 16970 16971 * Clean up 'Finished' handling, and add functions SSL_get_finished and 16972 SSL_get_peer_finished to allow applications to obtain the latest 16973 Finished messages sent to the peer or expected from the peer, 16974 respectively. (SSL_get_peer_finished is usually the Finished message 16975 actually received from the peer, otherwise the protocol will be aborted.) 16976 16977 As the Finished message are message digests of the complete handshake 16978 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 16979 be used for external authentication procedures when the authentication 16980 provided by SSL/TLS is not desired or is not enough. 16981 16982 *Bodo Moeller* 16983 16984 * Enhanced support for Alpha Linux is added. Now ./config checks if 16985 the host supports BWX extension and if Compaq C is present on the 16986 $PATH. Just exploiting of the BWX extension results in 20-30% 16987 performance kick for some algorithms, e.g. DES and RC4 to mention 16988 a couple. Compaq C in turn generates ~20% faster code for MD5 and 16989 SHA1. 16990 16991 *Andy Polyakov* 16992 16993 * Add support for MS "fast SGC". This is arguably a violation of the 16994 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 16995 weak crypto and after checking the certificate is SGC a second one 16996 with strong crypto. MS SGC stops the first handshake after receiving 16997 the server certificate message and sends a second client hello. Since 16998 a server will typically do all the time consuming operations before 16999 expecting any further messages from the client (server key exchange 17000 is the most expensive) there is little difference between the two. 17001 17002 To get OpenSSL to support MS SGC we have to permit a second client 17003 hello message after we have sent server done. In addition we have to 17004 reset the MAC if we do get this second client hello. 17005 17006 *Steve Henson* 17007 17008 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 17009 if a DER encoded private key is RSA or DSA traditional format. Changed 17010 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 17011 format DER encoded private key. Newer code should use PKCS#8 format which 17012 has the key type encoded in the ASN1 structure. Added DER private key 17013 support to pkcs8 application. 17014 17015 *Steve Henson* 17016 17017 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 17018 ciphersuites has been selected (as required by the SSL 3/TLS 1 17019 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 17020 is set, we interpret this as a request to violate the specification 17021 (the worst that can happen is a handshake failure, and 'correct' 17022 behaviour would result in a handshake failure anyway). 17023 17024 *Bodo Moeller* 17025 17026 * In SSL_CTX_add_session, take into account that there might be multiple 17027 SSL_SESSION structures with the same session ID (e.g. when two threads 17028 concurrently obtain them from an external cache). 17029 The internal cache can handle only one SSL_SESSION with a given ID, 17030 so if there's a conflict, we now throw out the old one to achieve 17031 consistency. 17032 17033 *Bodo Moeller* 17034 17035 * Add OIDs for idea and blowfish in CBC mode. This will allow both 17036 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 17037 some routines that use cipher OIDs: some ciphers do not have OIDs 17038 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 17039 example. 17040 17041 *Steve Henson* 17042 17043 * Simplify the trust setting structure and code. Now we just have 17044 two sequences of OIDs for trusted and rejected settings. These will 17045 typically have values the same as the extended key usage extension 17046 and any application specific purposes. 17047 17048 The trust checking code now has a default behaviour: it will just 17049 check for an object with the same NID as the passed id. Functions can 17050 be provided to override either the default behaviour or the behaviour 17051 for a given id. SSL client, server and email already have functions 17052 in place for compatibility: they check the NID and also return "trusted" 17053 if the certificate is self signed. 17054 17055 *Steve Henson* 17056 17057 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 17058 traditional format into an EVP_PKEY structure. 17059 17060 *Steve Henson* 17061 17062 * Add a password callback function PEM_cb() which either prompts for 17063 a password if usr_data is NULL or otherwise assumes it is a null 17064 terminated password. Allow passwords to be passed on command line 17065 environment or config files in a few more utilities. 17066 17067 *Steve Henson* 17068 17069 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 17070 keys. Add some short names for PKCS#8 PBE algorithms and allow them 17071 to be specified on the command line for the pkcs8 and pkcs12 utilities. 17072 Update documentation. 17073 17074 *Steve Henson* 17075 17076 * Support for ASN1 "NULL" type. This could be handled before by using 17077 ASN1_TYPE but there wasn't any function that would try to read a NULL 17078 and produce an error if it couldn't. For compatibility we also have 17079 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 17080 don't allocate anything because they don't need to. 17081 17082 *Steve Henson* 17083 17084 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 17085 for details. 17086 17087 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 17088 17089 * Rebuild of the memory allocation routines used by OpenSSL code and 17090 possibly others as well. The purpose is to make an interface that 17091 provide hooks so anyone can build a separate set of allocation and 17092 deallocation routines to be used by OpenSSL, for example memory 17093 pool implementations, or something else, which was previously hard 17094 since Malloc(), Realloc() and Free() were defined as macros having 17095 the values malloc, realloc and free, respectively (except for Win32 17096 compilations). The same is provided for memory debugging code. 17097 OpenSSL already comes with functionality to find memory leaks, but 17098 this gives people a chance to debug other memory problems. 17099 17100 With these changes, a new set of functions and macros have appeared: 17101 17102 CRYPTO_set_mem_debug_functions() [F] 17103 CRYPTO_get_mem_debug_functions() [F] 17104 CRYPTO_dbg_set_options() [F] 17105 CRYPTO_dbg_get_options() [F] 17106 CRYPTO_malloc_debug_init() [M] 17107 17108 The memory debug functions are NULL by default, unless the library 17109 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 17110 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 17111 gives the standard debugging functions that come with OpenSSL) or 17112 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 17113 provided by the library user) must be used. When the standard 17114 debugging functions are used, CRYPTO_dbg_set_options can be used to 17115 request additional information: 17116 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 17117 the CRYPTO_MDEBUG_xxx macro when compiling the library. 17118 17119 Also, things like CRYPTO_set_mem_functions will always give the 17120 expected result (the new set of functions is used for allocation 17121 and deallocation) at all times, regardless of platform and compiler 17122 options. 17123 17124 To finish it up, some functions that were never use in any other 17125 way than through macros have a new API and new semantic: 17126 17127 CRYPTO_dbg_malloc() 17128 CRYPTO_dbg_realloc() 17129 CRYPTO_dbg_free() 17130 17131 All macros of value have retained their old syntax. 17132 17133 *Richard Levitte and Bodo Moeller* 17134 17135 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17136 ordering of SMIMECapabilities wasn't in "strength order" and there 17137 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17138 algorithm. 17139 17140 *Steve Henson* 17141 17142 * Some ASN1 types with illegal zero length encoding (INTEGER, 17143 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17144 17145 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17146 17147 * Merge in my S/MIME library for OpenSSL. This provides a simple 17148 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17149 functionality to handle multipart/signed properly) and a utility 17150 called 'smime' to call all this stuff. This is based on code I 17151 originally wrote for Celo who have kindly allowed it to be 17152 included in OpenSSL. 17153 17154 *Steve Henson* 17155 17156 * Add variants des_set_key_checked and des_set_key_unchecked of 17157 des_set_key (aka des_key_sched). Global variable des_check_key 17158 decides which of these is called by des_set_key; this way 17159 des_check_key behaves as it always did, but applications and 17160 the library itself, which was buggy for des_check_key == 1, 17161 have a cleaner way to pick the version they need. 17162 17163 *Bodo Moeller* 17164 17165 * New function PKCS12_newpass() which changes the password of a 17166 PKCS12 structure. 17167 17168 *Steve Henson* 17169 17170 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17171 dynamic mix. In both cases the ids can be used as an index into the 17172 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17173 functions so they accept a list of the field values and the 17174 application doesn't need to directly manipulate the X509_TRUST 17175 structure. 17176 17177 *Steve Henson* 17178 17179 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17180 need initialising. 17181 17182 *Steve Henson* 17183 17184 * Modify the way the V3 extension code looks up extensions. This now 17185 works in a similar way to the object code: we have some "standard" 17186 extensions in a static table which is searched with OBJ_bsearch() 17187 and the application can add dynamic ones if needed. The file 17188 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17189 updated whenever a new extension is added to the core code and kept 17190 in ext_nid order. There is a simple program 'tabtest.c' which checks 17191 this. New extensions are not added too often so this file can readily 17192 be maintained manually. 17193 17194 There are two big advantages in doing things this way. The extensions 17195 can be looked up immediately and no longer need to be "added" using 17196 X509V3_add_standard_extensions(): this function now does nothing. 17197 Side note: I get *lots* of email saying the extension code doesn't 17198 work because people forget to call this function. 17199 Also no dynamic allocation is done unless new extensions are added: 17200 so if we don't add custom extensions there is no need to call 17201 X509V3_EXT_cleanup(). 17202 17203 *Steve Henson* 17204 17205 * Modify enc utility's salting as follows: make salting the default. Add a 17206 magic header, so unsalted files fail gracefully instead of just decrypting 17207 to garbage. This is because not salting is a big security hole, so people 17208 should be discouraged from doing it. 17209 17210 *Ben Laurie* 17211 17212 * Fixes and enhancements to the 'x509' utility. It allowed a message 17213 digest to be passed on the command line but it only used this 17214 parameter when signing a certificate. Modified so all relevant 17215 operations are affected by the digest parameter including the 17216 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17217 DSA key was used because it didn't fix the digest. 17218 17219 *Steve Henson* 17220 17221 * Initial certificate chain verify code. Currently tests the untrusted 17222 certificates for consistency with the verify purpose (which is set 17223 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17224 17225 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17226 this is because it will reject chains with invalid extensions whereas 17227 every previous version of OpenSSL and SSLeay made no checks at all. 17228 17229 Trust code: checks the root CA for the relevant trust settings. Trust 17230 settings have an initial value consistent with the verify purpose: e.g. 17231 if the verify purpose is for SSL client use it expects the CA to be 17232 trusted for SSL client use. However the default value can be changed to 17233 permit custom trust settings: one example of this would be to only trust 17234 certificates from a specific "secure" set of CAs. 17235 17236 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17237 which should be used for version portability: especially since the 17238 verify structure is likely to change more often now. 17239 17240 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17241 to set them. If not set then assume SSL clients will verify SSL servers 17242 and vice versa. 17243 17244 Two new options to the verify program: -untrusted allows a set of 17245 untrusted certificates to be passed in and -purpose which sets the 17246 intended purpose of the certificate. If a purpose is set then the 17247 new chain verify code is used to check extension consistency. 17248 17249 *Steve Henson* 17250 17251 * Support for the authority information access extension. 17252 17253 *Steve Henson* 17254 17255 * Modify RSA and DSA PEM read routines to transparently handle 17256 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17257 public keys in a format compatible with certificate 17258 SubjectPublicKeyInfo structures. Unfortunately there were already 17259 functions called *_PublicKey_* which used various odd formats so 17260 these are retained for compatibility: however the DSA variants were 17261 never in a public release so they have been deleted. Changed dsa/rsa 17262 utilities to handle the new format: note no releases ever handled public 17263 keys so we should be OK. 17264 17265 The primary motivation for this change is to avoid the same fiasco 17266 that dogs private keys: there are several incompatible private key 17267 formats some of which are standard and some OpenSSL specific and 17268 require various evil hacks to allow partial transparent handling and 17269 even then it doesn't work with DER formats. Given the option anything 17270 other than PKCS#8 should be dumped: but the other formats have to 17271 stay in the name of compatibility. 17272 17273 With public keys and the benefit of hindsight one standard format 17274 is used which works with EVP_PKEY, RSA or DSA structures: though 17275 it clearly returns an error if you try to read the wrong kind of key. 17276 17277 Added a -pubkey option to the 'x509' utility to output the public key. 17278 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17279 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17280 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17281 that do the same as the `EVP_PKEY_assign_*()` except they up the 17282 reference count of the added key (they don't "swallow" the 17283 supplied key). 17284 17285 *Steve Henson* 17286 17287 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17288 CRLs would fail if the file contained no certificates or no CRLs: 17289 added a new function to read in both types and return the number 17290 read: this means that if none are read it will be an error. The 17291 DER versions of the certificate and CRL reader would always fail 17292 because it isn't possible to mix certificates and CRLs in DER format 17293 without choking one or the other routine. Changed this to just read 17294 a certificate: this is the best we can do. Also modified the code 17295 in `apps/verify.c` to take notice of return codes: it was previously 17296 attempting to read in certificates from NULL pointers and ignoring 17297 any errors: this is one reason why the cert and CRL reader seemed 17298 to work. It doesn't check return codes from the default certificate 17299 routines: these may well fail if the certificates aren't installed. 17300 17301 *Steve Henson* 17302 17303 * Code to support otherName option in GeneralName. 17304 17305 *Steve Henson* 17306 17307 * First update to verify code. Change the verify utility 17308 so it warns if it is passed a self signed certificate: 17309 for consistency with the normal behaviour. X509_verify 17310 has been modified to it will now verify a self signed 17311 certificate if *exactly* the same certificate appears 17312 in the store: it was previously impossible to trust a 17313 single self signed certificate. This means that: 17314 openssl verify ss.pem 17315 now gives a warning about a self signed certificate but 17316 openssl verify -CAfile ss.pem ss.pem 17317 is OK. 17318 17319 *Steve Henson* 17320 17321 * For servers, store verify_result in SSL_SESSION data structure 17322 (and add it to external session representation). 17323 This is needed when client certificate verifications fails, 17324 but an application-provided verification callback (set by 17325 SSL_CTX_set_cert_verify_callback) allows accepting the session 17326 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17327 but returns 1): When the session is reused, we have to set 17328 ssl->verify_result to the appropriate error code to avoid 17329 security holes. 17330 17331 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17332 17333 * Fix a bug in the new PKCS#7 code: it didn't consider the 17334 case in PKCS7_dataInit() where the signed PKCS7 structure 17335 didn't contain any existing data because it was being created. 17336 17337 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17338 17339 * Add a salt to the key derivation routines in enc.c. This 17340 forms the first 8 bytes of the encrypted file. Also add a 17341 -S option to allow a salt to be input on the command line. 17342 17343 *Steve Henson* 17344 17345 * New function X509_cmp(). Oddly enough there wasn't a function 17346 to compare two certificates. We do this by working out the SHA1 17347 hash and comparing that. X509_cmp() will be needed by the trust 17348 code. 17349 17350 *Steve Henson* 17351 17352 * SSL_get1_session() is like SSL_get_session(), but increments 17353 the reference count in the SSL_SESSION returned. 17354 17355 *Geoff Thorpe <geoff@eu.c2.net>* 17356 17357 * Fix for 'req': it was adding a null to request attributes. 17358 Also change the X509_LOOKUP and X509_INFO code to handle 17359 certificate auxiliary information. 17360 17361 *Steve Henson* 17362 17363 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17364 the 'enc' command. 17365 17366 *Steve Henson* 17367 17368 * Add the possibility to add extra information to the memory leak 17369 detecting output, to form tracebacks, showing from where each 17370 allocation was originated: CRYPTO_push_info("constant string") adds 17371 the string plus current file name and line number to a per-thread 17372 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17373 is like calling CYRPTO_pop_info() until the stack is empty. 17374 Also updated memory leak detection code to be multi-thread-safe. 17375 17376 *Richard Levitte* 17377 17378 * Add options -text and -noout to pkcs7 utility and delete the 17379 encryption options which never did anything. Update docs. 17380 17381 *Steve Henson* 17382 17383 * Add options to some of the utilities to allow the pass phrase 17384 to be included on either the command line (not recommended on 17385 OSes like Unix) or read from the environment. Update the 17386 manpages and fix a few bugs. 17387 17388 *Steve Henson* 17389 17390 * Add a few manpages for some of the openssl commands. 17391 17392 *Steve Henson* 17393 17394 * Fix the -revoke option in ca. It was freeing up memory twice, 17395 leaking and not finding already revoked certificates. 17396 17397 *Steve Henson* 17398 17399 * Extensive changes to support certificate auxiliary information. 17400 This involves the use of X509_CERT_AUX structure and X509_AUX 17401 functions. An X509_AUX function such as PEM_read_X509_AUX() 17402 can still read in a certificate file in the usual way but it 17403 will also read in any additional "auxiliary information". By 17404 doing things this way a fair degree of compatibility can be 17405 retained: existing certificates can have this information added 17406 using the new 'x509' options. 17407 17408 Current auxiliary information includes an "alias" and some trust 17409 settings. The trust settings will ultimately be used in enhanced 17410 certificate chain verification routines: currently a certificate 17411 can only be trusted if it is self signed and then it is trusted 17412 for all purposes. 17413 17414 *Steve Henson* 17415 17416 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17417 The problem was that one of the replacement routines had not been working 17418 since SSLeay releases. For now the offending routine has been replaced 17419 with non-optimised assembler. Even so, this now gives around 95% 17420 performance improvement for 1024 bit RSA signs. 17421 17422 *Mark Cox* 17423 17424 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17425 handling. Most clients have the effective key size in bits equal to 17426 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17427 A few however don't do this and instead use the size of the decrypted key 17428 to determine the RC2 key length and the AlgorithmIdentifier to determine 17429 the effective key length. In this case the effective key length can still 17430 be 40 bits but the key length can be 168 bits for example. This is fixed 17431 by manually forcing an RC2 key into the EVP_PKEY structure because the 17432 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17433 the key length and effective key length are equal. 17434 17435 *Steve Henson* 17436 17437 * Add a bunch of functions that should simplify the creation of 17438 X509_NAME structures. Now you should be able to do: 17439 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17440 and have it automatically work out the correct field type and fill in 17441 the structures. The more adventurous can try: 17442 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17443 and it will (hopefully) work out the correct multibyte encoding. 17444 17445 *Steve Henson* 17446 17447 * Change the 'req' utility to use the new field handling and multibyte 17448 copy routines. Before the DN field creation was handled in an ad hoc 17449 way in req, ca, and x509 which was rather broken and didn't support 17450 BMPStrings or UTF8Strings. Since some software doesn't implement 17451 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17452 using the dirstring_type option. See the new comment in the default 17453 openssl.cnf for more info. 17454 17455 *Steve Henson* 17456 17457 * Make crypto/rand/md_rand.c more robust: 17458 - Assure unique random numbers after fork(). 17459 - Make sure that concurrent threads access the global counter and 17460 md serializably so that we never lose entropy in them 17461 or use exactly the same state in multiple threads. 17462 Access to the large state is not always serializable because 17463 the additional locking could be a performance killer, and 17464 md should be large enough anyway. 17465 17466 *Bodo Moeller* 17467 17468 * New file `apps/app_rand.c` with commonly needed functionality 17469 for handling the random seed file. 17470 17471 Use the random seed file in some applications that previously did not: 17472 ca, 17473 dsaparam -genkey (which also ignored its '-rand' option), 17474 s_client, 17475 s_server, 17476 x509 (when signing). 17477 Except on systems with /dev/urandom, it is crucial to have a random 17478 seed file at least for key creation, DSA signing, and for DH exchanges; 17479 for RSA signatures we could do without one. 17480 17481 gendh and gendsa (unlike genrsa) used to read only the first byte 17482 of each file listed in the '-rand' option. The function as previously 17483 found in genrsa is now in app_rand.c and is used by all programs 17484 that support '-rand'. 17485 17486 *Bodo Moeller* 17487 17488 * In RAND_write_file, use mode 0600 for creating files; 17489 don't just chmod when it may be too late. 17490 17491 *Bodo Moeller* 17492 17493 * Report an error from X509_STORE_load_locations 17494 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17495 17496 *Bill Perry* 17497 17498 * New function ASN1_mbstring_copy() this copies a string in either 17499 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17500 into an ASN1_STRING type. A mask of permissible types is passed 17501 and it chooses the "minimal" type to use or an error if not type 17502 is suitable. 17503 17504 *Steve Henson* 17505 17506 * Add function equivalents to the various macros in asn1.h. The old 17507 macros are retained with an `M_` prefix. Code inside the library can 17508 use the `M_` macros. External code (including the openssl utility) 17509 should *NOT* in order to be "shared library friendly". 17510 17511 *Steve Henson* 17512 17513 * Add various functions that can check a certificate's extensions 17514 to see if it usable for various purposes such as SSL client, 17515 server or S/MIME and CAs of these types. This is currently 17516 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17517 verification. Also added a -purpose flag to x509 utility to 17518 print out all the purposes. 17519 17520 *Steve Henson* 17521 17522 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17523 functions. 17524 17525 *Steve Henson* 17526 17527 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17528 for, obtain and decode and extension and obtain its critical flag. 17529 This allows all the necessary extension code to be handled in a 17530 single function call. 17531 17532 *Steve Henson* 17533 17534 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17535 platforms. See crypto/rc4/rc4_enc.c for further details. 17536 17537 *Andy Polyakov* 17538 17539 * New -noout option to asn1parse. This causes no output to be produced 17540 its main use is when combined with -strparse and -out to extract data 17541 from a file (which may not be in ASN.1 format). 17542 17543 *Steve Henson* 17544 17545 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17546 when producing the local key id. 17547 17548 *Richard Levitte <levitte@stacken.kth.se>* 17549 17550 * New option -dhparam in s_server. This allows a DH parameter file to be 17551 stated explicitly. If it is not stated then it tries the first server 17552 certificate file. The previous behaviour hard coded the filename 17553 "server.pem". 17554 17555 *Steve Henson* 17556 17557 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17558 a public key to be input or output. For example: 17559 openssl rsa -in key.pem -pubout -out pubkey.pem 17560 Also added necessary DSA public key functions to handle this. 17561 17562 *Steve Henson* 17563 17564 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17565 in the message. This was handled by allowing 17566 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17567 17568 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17569 17570 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17571 to the end of the strings whereas this didn't. This would cause problems 17572 if strings read with d2i_ASN1_bytes() were later modified. 17573 17574 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17575 17576 * Fix for base64 decode bug. When a base64 bio reads only one line of 17577 data and it contains EOF it will end up returning an error. This is 17578 caused by input 46 bytes long. The cause is due to the way base64 17579 BIOs find the start of base64 encoded data. They do this by trying a 17580 trial decode on each line until they find one that works. When they 17581 do a flag is set and it starts again knowing it can pass all the 17582 data directly through the decoder. Unfortunately it doesn't reset 17583 the context it uses. This means that if EOF is reached an attempt 17584 is made to pass two EOFs through the context and this causes the 17585 resulting error. This can also cause other problems as well. As is 17586 usual with these problems it takes *ages* to find and the fix is 17587 trivial: move one line. 17588 17589 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17590 17591 * Ugly workaround to get s_client and s_server working under Windows. The 17592 old code wouldn't work because it needed to select() on sockets and the 17593 tty (for keypresses and to see if data could be written). Win32 only 17594 supports select() on sockets so we select() with a 1s timeout on the 17595 sockets and then see if any characters are waiting to be read, if none 17596 are present then we retry, we also assume we can always write data to 17597 the tty. This isn't nice because the code then blocks until we've 17598 received a complete line of data and it is effectively polling the 17599 keyboard at 1s intervals: however it's quite a bit better than not 17600 working at all :-) A dedicated Windows application might handle this 17601 with an event loop for example. 17602 17603 *Steve Henson* 17604 17605 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17606 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17607 will be called when RSA_sign() and RSA_verify() are used. This is useful 17608 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17609 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17610 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17611 This necessitated the support of an extra signature type NID_md5_sha1 17612 for SSL signatures and modifications to the SSL library to use it instead 17613 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17614 17615 *Steve Henson* 17616 17617 * Add new -verify -CAfile and -CApath options to the crl program, these 17618 will lookup a CRL issuers certificate and verify the signature in a 17619 similar way to the verify program. Tidy up the crl program so it 17620 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17621 less strict. It will now permit CRL extensions even if it is not 17622 a V2 CRL: this will allow it to tolerate some broken CRLs. 17623 17624 *Steve Henson* 17625 17626 * Initialize all non-automatic variables each time one of the openssl 17627 sub-programs is started (this is necessary as they may be started 17628 multiple times from the "OpenSSL>" prompt). 17629 17630 *Lennart Bang, Bodo Moeller* 17631 17632 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17633 removing all other RSA functionality (this is what NO_RSA does). This 17634 is so (for example) those in the US can disable those operations covered 17635 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17636 key generation. 17637 17638 *Steve Henson* 17639 17640 * Non-copying interface to BIO pairs. 17641 (still largely untested) 17642 17643 *Bodo Moeller* 17644 17645 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17646 ASCII string. This was handled independently in various places before. 17647 17648 *Steve Henson* 17649 17650 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17651 UTF8 strings a character at a time. 17652 17653 *Steve Henson* 17654 17655 * Use client_version from client hello to select the protocol 17656 (s23_srvr.c) and for RSA client key exchange verification 17657 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17658 17659 *Bodo Moeller* 17660 17661 * Add various utility functions to handle SPKACs, these were previously 17662 handled by poking round in the structure internals. Added new function 17663 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17664 print, verify and generate SPKACs. Based on an original idea from 17665 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17666 17667 *Steve Henson* 17668 17669 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17670 17671 *Andy Polyakov* 17672 17673 * Allow the config file extension section to be overwritten on the 17674 command line. Based on an original idea from Massimiliano Pala 17675 <madwolf@comune.modena.it>. The new option is called -extensions 17676 and can be applied to ca, req and x509. Also -reqexts to override 17677 the request extensions in req and -crlexts to override the crl extensions 17678 in ca. 17679 17680 *Steve Henson* 17681 17682 * Add new feature to the SPKAC handling in ca. Now you can include 17683 the same field multiple times by preceding it by "XXXX." for example: 17684 1.OU="Unit name 1" 17685 2.OU="Unit name 2" 17686 this is the same syntax as used in the req config file. 17687 17688 *Steve Henson* 17689 17690 * Allow certificate extensions to be added to certificate requests. These 17691 are specified in a 'req_extensions' option of the req section of the 17692 config file. They can be printed out with the -text option to req but 17693 are otherwise ignored at present. 17694 17695 *Steve Henson* 17696 17697 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17698 data read consists of only the final block it would not decrypted because 17699 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17700 A misplaced 'break' also meant the decrypted final block might not be 17701 copied until the next read. 17702 17703 *Steve Henson* 17704 17705 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17706 a few extra parameters to the DH structure: these will be useful if 17707 for example we want the value of 'q' or implement X9.42 DH. 17708 17709 *Steve Henson* 17710 17711 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17712 provides hooks that allow the default DSA functions or functions on a 17713 "per key" basis to be replaced. This allows hardware acceleration and 17714 hardware key storage to be handled without major modification to the 17715 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17716 associated functions. 17717 17718 *Steve Henson* 17719 17720 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17721 as "read only": it can't be written to and the buffer it points to will 17722 not be freed. Reading from a read only BIO is much more efficient than 17723 a normal memory BIO. This was added because there are several times when 17724 an area of memory needs to be read from a BIO. The previous method was 17725 to create a memory BIO and write the data to it, this results in two 17726 copies of the data and an O(n^2) reading algorithm. There is a new 17727 function BIO_new_mem_buf() which creates a read only memory BIO from 17728 an area of memory. Also modified the PKCS#7 routines to use read only 17729 memory BIOs. 17730 17731 *Steve Henson* 17732 17733 * Bugfix: ssl23_get_client_hello did not work properly when called in 17734 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17735 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17736 but a retry condition occurred while trying to read the rest. 17737 17738 *Bodo Moeller* 17739 17740 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17741 NID_pkcs7_encrypted by default: this was wrong since this should almost 17742 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17743 the encrypted data type: this is a more sensible place to put it and it 17744 allows the PKCS#12 code to be tidied up that duplicated this 17745 functionality. 17746 17747 *Steve Henson* 17748 17749 * Changed obj_dat.pl script so it takes its input and output files on 17750 the command line. This should avoid shell escape redirection problems 17751 under Win32. 17752 17753 *Steve Henson* 17754 17755 * Initial support for certificate extension requests, these are included 17756 in things like Xenroll certificate requests. Included functions to allow 17757 extensions to be obtained and added. 17758 17759 *Steve Henson* 17760 17761 * -crlf option to s_client and s_server for sending newlines as 17762 CRLF (as required by many protocols). 17763 17764 *Bodo Moeller* 17765 17766### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 17767 17768 * Install libRSAglue.a when OpenSSL is built with RSAref. 17769 17770 *Ralf S. Engelschall* 17771 17772 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 17773 17774 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 17775 17776 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 17777 program. 17778 17779 *Steve Henson* 17780 17781 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 17782 DH parameters/keys (q is lost during that conversion, but the resulting 17783 DH parameters contain its length). 17784 17785 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 17786 much faster than DH_generate_parameters (which creates parameters 17787 where `p = 2*q + 1`), and also the smaller q makes DH computations 17788 much more efficient (160-bit exponentiation instead of 1024-bit 17789 exponentiation); so this provides a convenient way to support DHE 17790 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 17791 utter importance to use 17792 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17793 or 17794 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17795 when such DH parameters are used, because otherwise small subgroup 17796 attacks may become possible! 17797 17798 *Bodo Moeller* 17799 17800 * Avoid memory leak in i2d_DHparams. 17801 17802 *Bodo Moeller* 17803 17804 * Allow the -k option to be used more than once in the enc program: 17805 this allows the same encrypted message to be read by multiple recipients. 17806 17807 *Steve Henson* 17808 17809 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 17810 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 17811 it will always use the numerical form of the OID, even if it has a short 17812 or long name. 17813 17814 *Steve Henson* 17815 17816 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 17817 method only got called if p,q,dmp1,dmq1,iqmp components were present, 17818 otherwise bn_mod_exp was called. In the case of hardware keys for example 17819 no private key components need be present and it might store extra data 17820 in the RSA structure, which cannot be accessed from bn_mod_exp. 17821 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 17822 private key operations. 17823 17824 *Steve Henson* 17825 17826 * Added support for SPARC Linux. 17827 17828 *Andy Polyakov* 17829 17830 * pem_password_cb function type incompatibly changed from 17831 typedef int pem_password_cb(char *buf, int size, int rwflag); 17832 to 17833 ....(char *buf, int size, int rwflag, void *userdata); 17834 so that applications can pass data to their callbacks: 17835 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 17836 additional void * argument, which is just handed through whenever 17837 the password callback is called. 17838 17839 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 17840 17841 New function SSL_CTX_set_default_passwd_cb_userdata. 17842 17843 Compatibility note: As many C implementations push function arguments 17844 onto the stack in reverse order, the new library version is likely to 17845 interoperate with programs that have been compiled with the old 17846 pem_password_cb definition (PEM_whatever takes some data that 17847 happens to be on the stack as its last argument, and the callback 17848 just ignores this garbage); but there is no guarantee whatsoever that 17849 this will work. 17850 17851 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 17852 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 17853 problems not only on Windows, but also on some Unix platforms. 17854 To avoid problematic command lines, these definitions are now in an 17855 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 17856 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 17857 17858 *Bodo Moeller* 17859 17860 * MIPS III/IV assembler module is reimplemented. 17861 17862 *Andy Polyakov* 17863 17864 * More DES library cleanups: remove references to srand/rand and 17865 delete an unused file. 17866 17867 *Ulf Möller* 17868 17869 * Add support for the free Netwide assembler (NASM) under Win32, 17870 since not many people have MASM (ml) and it can be hard to obtain. 17871 This is currently experimental but it seems to work OK and pass all 17872 the tests. Check out INSTALL.W32 for info. 17873 17874 *Steve Henson* 17875 17876 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 17877 without temporary keys kept an extra copy of the server key, 17878 and connections with temporary keys did not free everything in case 17879 of an error. 17880 17881 *Bodo Moeller* 17882 17883 * New function RSA_check_key and new openssl rsa option -check 17884 for verifying the consistency of RSA keys. 17885 17886 *Ulf Moeller, Bodo Moeller* 17887 17888 * Various changes to make Win32 compile work: 17889 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 17890 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 17891 comparison" warnings. 17892 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 17893 17894 *Steve Henson* 17895 17896 * Add a debugging option to PKCS#5 v2 key generation function: when 17897 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 17898 derived keys are printed to stderr. 17899 17900 *Steve Henson* 17901 17902 * Copy the flags in ASN1_STRING_dup(). 17903 17904 *Roman E. Pavlov <pre@mo.msk.ru>* 17905 17906 * The x509 application mishandled signing requests containing DSA 17907 keys when the signing key was also DSA and the parameters didn't match. 17908 17909 It was supposed to omit the parameters when they matched the signing key: 17910 the verifying software was then supposed to automatically use the CA's 17911 parameters if they were absent from the end user certificate. 17912 17913 Omitting parameters is no longer recommended. The test was also 17914 the wrong way round! This was probably due to unusual behaviour in 17915 EVP_cmp_parameters() which returns 1 if the parameters match. 17916 This meant that parameters were omitted when they *didn't* match and 17917 the certificate was useless. Certificates signed with 'ca' didn't have 17918 this bug. 17919 17920 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 17921 17922 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 17923 The interface is as follows: 17924 Applications can use 17925 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 17926 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 17927 "off" is now the default. 17928 The library internally uses 17929 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 17930 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 17931 to disable memory-checking temporarily. 17932 17933 Some inconsistent states that previously were possible (and were 17934 even the default) are now avoided. 17935 17936 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 17937 with each memory chunk allocated; this is occasionally more helpful 17938 than just having a counter. 17939 17940 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 17941 17942 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 17943 extensions. 17944 17945 *Bodo Moeller* 17946 17947 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 17948 which largely parallels "options", but is for changing API behaviour, 17949 whereas "options" are about protocol behaviour. 17950 Initial "mode" flags are: 17951 17952 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 17953 a single record has been written. 17954 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 17955 retries use the same buffer location. 17956 (But all of the contents must be 17957 copied!) 17958 17959 *Bodo Moeller* 17960 17961 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 17962 worked. 17963 17964 * Fix problems with no-hmac etc. 17965 17966 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 17967 17968 * New functions RSA_get_default_method(), RSA_set_method() and 17969 RSA_get_method(). These allows replacement of RSA_METHODs without having 17970 to mess around with the internals of an RSA structure. 17971 17972 *Steve Henson* 17973 17974 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 17975 Also really enable memory leak checks in openssl.c and in some 17976 test programs. 17977 17978 *Chad C. Mulligan, Bodo Moeller* 17979 17980 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 17981 up the length of negative integers. This has now been simplified to just 17982 store the length when it is first determined and use it later, rather 17983 than trying to keep track of where data is copied and updating it to 17984 point to the end. 17985 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 17986 17987 * Add a new function PKCS7_signatureVerify. This allows the verification 17988 of a PKCS#7 signature but with the signing certificate passed to the 17989 function itself. This contrasts with PKCS7_dataVerify which assumes the 17990 certificate is present in the PKCS#7 structure. This isn't always the 17991 case: certificates can be omitted from a PKCS#7 structure and be 17992 distributed by "out of band" means (such as a certificate database). 17993 17994 *Steve Henson* 17995 17996 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 17997 function prototypes in pem.h, also change util/mkdef.pl to add the 17998 necessary function names. 17999 18000 *Steve Henson* 18001 18002 * mk1mf.pl (used by Windows builds) did not properly read the 18003 options set by Configure in the top level Makefile, and Configure 18004 was not even able to write more than one option correctly. 18005 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 18006 18007 *Bodo Moeller* 18008 18009 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 18010 file to be loaded from a BIO or FILE pointer. The BIO version will 18011 for example allow memory BIOs to contain config info. 18012 18013 *Steve Henson* 18014 18015 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 18016 Whoever hopes to achieve shared-library compatibility across versions 18017 must use this, not the compile-time macro. 18018 (Exercise 0.9.4: Which is the minimum library version required by 18019 such programs?) 18020 Note: All this applies only to multi-threaded programs, others don't 18021 need locks. 18022 18023 *Bodo Moeller* 18024 18025 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 18026 through a BIO pair triggered the default case, i.e. 18027 SSLerr(...,SSL_R_UNKNOWN_STATE). 18028 18029 *Bodo Moeller* 18030 18031 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 18032 can use the SSL library even if none of the specific BIOs is 18033 appropriate. 18034 18035 *Bodo Moeller* 18036 18037 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 18038 for the encoded length. 18039 18040 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 18041 18042 * Add initial documentation of the X509V3 functions. 18043 18044 *Steve Henson* 18045 18046 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 18047 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 18048 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 18049 secure PKCS#8 private key format with a high iteration count. 18050 18051 *Steve Henson* 18052 18053 * Fix determination of Perl interpreter: A perl or perl5 18054 *directory* in $PATH was also accepted as the interpreter. 18055 18056 *Ralf S. Engelschall* 18057 18058 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 18059 wrong with it but it was very old and did things like calling 18060 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 18061 unusual formatting. 18062 18063 *Steve Henson* 18064 18065 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 18066 to use the new extension code. 18067 18068 *Steve Henson* 18069 18070 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 18071 with macros. This should make it easier to change their form, add extra 18072 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 18073 constant. 18074 18075 *Steve Henson* 18076 18077 * Add to configuration table a new entry that can specify an alternative 18078 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 18079 according to Mark Crispin <MRC@Panda.COM>. 18080 18081 *Bodo Moeller* 18082 18083 * DES CBC did not update the IV. Weird. 18084 18085 *Ben Laurie* 18086lse 18087 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 18088 Changing the behaviour of the former might break existing programs -- 18089 where IV updating is needed, des_ncbc_encrypt can be used. 18090ndif 18091 18092 * When bntest is run from "make test" it drives bc to check its 18093 calculations, as well as internally checking them. If an internal check 18094 fails, it needs to cause bc to give a non-zero result or make test carries 18095 on without noticing the failure. Fixed. 18096 18097 *Ben Laurie* 18098 18099 * DES library cleanups. 18100 18101 *Ulf Möller* 18102 18103 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 18104 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 18105 ciphers. NOTE: although the key derivation function has been verified 18106 against some published test vectors it has not been extensively tested 18107 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 18108 of v2.0. 18109 18110 *Steve Henson* 18111 18112 * Instead of "mkdir -p", which is not fully portable, use new 18113 Perl script "util/mkdir-p.pl". 18114 18115 *Bodo Moeller* 18116 18117 * Rewrite the way password based encryption (PBE) is handled. It used to 18118 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 18119 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 18120 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 18121 the 'parameter' field of the AlgorithmIdentifier is passed to the 18122 underlying key generation function so it must do its own ASN1 parsing. 18123 This has also changed the EVP_PBE_CipherInit() function which now has a 18124 'parameter' argument instead of literal salt and iteration count values 18125 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 18126 18127 *Steve Henson* 18128 18129 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18130 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18131 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18132 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18133 value was just used as a "magic string" and not used directly its 18134 value doesn't matter. 18135 18136 *Steve Henson* 18137 18138 * Introduce some semblance of const correctness to BN. Shame C doesn't 18139 support mutable. 18140 18141 *Ben Laurie* 18142 18143 * "linux-sparc64" configuration (ultrapenguin). 18144 18145 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18146 "linux-sparc" configuration. 18147 18148 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18149 18150 * config now generates no-xxx options for missing ciphers. 18151 18152 *Ulf Möller* 18153 18154 * Support the EBCDIC character set (work in progress). 18155 File ebcdic.c not yet included because it has a different license. 18156 18157 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18158 18159 * Support BS2000/OSD-POSIX. 18160 18161 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18162 18163 * Make callbacks for key generation use `void *` instead of `char *`. 18164 18165 *Ben Laurie* 18166 18167 * Make S/MIME samples compile (not yet tested). 18168 18169 *Ben Laurie* 18170 18171 * Additional typesafe stacks. 18172 18173 *Ben Laurie* 18174 18175 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18176 18177 *Bodo Moeller* 18178 18179### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18180 18181 * New configuration variant "sco5-gcc". 18182 18183 * Updated some demos. 18184 18185 *Sean O Riordain, Wade Scholine* 18186 18187 * Add missing BIO_free at exit of pkcs12 application. 18188 18189 *Wu Zhigang* 18190 18191 * Fix memory leak in conf.c. 18192 18193 *Steve Henson* 18194 18195 * Updates for Win32 to assembler version of MD5. 18196 18197 *Steve Henson* 18198 18199 * Set #! path to perl in `apps/der_chop` to where we found it 18200 instead of using a fixed path. 18201 18202 *Bodo Moeller* 18203 18204 * SHA library changes for irix64-mips4-cc. 18205 18206 *Andy Polyakov* 18207 18208 * Improvements for VMS support. 18209 18210 *Richard Levitte* 18211 18212### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18213 18214 * Bignum library bug fix. IRIX 6 passes "make test" now! 18215 This also avoids the problems with SC4.2 and unpatched SC5. 18216 18217 *Andy Polyakov <appro@fy.chalmers.se>* 18218 18219 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18220 These are required because of the typesafe stack would otherwise break 18221 existing code. If old code used a structure member which used to be STACK 18222 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18223 sk_num or sk_value it would produce an error because the num, data members 18224 are not present in STACK_OF. Now it just produces a warning. sk_set 18225 replaces the old method of assigning a value to sk_value 18226 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18227 that does this will no longer work (and should use sk_set instead) but 18228 this could be regarded as a "questionable" behaviour anyway. 18229 18230 *Steve Henson* 18231 18232 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18233 correctly handle encrypted S/MIME data. 18234 18235 *Steve Henson* 18236 18237 * Change type of various DES function arguments from des_cblock 18238 (which means, in function argument declarations, pointer to char) 18239 to des_cblock * (meaning pointer to array with 8 char elements), 18240 which allows the compiler to do more typechecking; it was like 18241 that back in SSLeay, but with lots of ugly casts. 18242 18243 Introduce new type const_des_cblock. 18244 18245 *Bodo Moeller* 18246 18247 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18248 problems: find RecipientInfo structure that matches recipient certificate 18249 and initialise the ASN1 structures properly based on passed cipher. 18250 18251 *Steve Henson* 18252 18253 * Belatedly make the BN tests actually check the results. 18254 18255 *Ben Laurie* 18256 18257 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18258 to and from BNs: it was completely broken. New compilation option 18259 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18260 key elements as negative integers. 18261 18262 *Steve Henson* 18263 18264 * Reorganize and speed up MD5. 18265 18266 *Andy Polyakov <appro@fy.chalmers.se>* 18267 18268 * VMS support. 18269 18270 *Richard Levitte <richard@levitte.org>* 18271 18272 * New option -out to asn1parse to allow the parsed structure to be 18273 output to a file. This is most useful when combined with the -strparse 18274 option to examine the output of things like OCTET STRINGS. 18275 18276 *Steve Henson* 18277 18278 * Make SSL library a little more fool-proof by not requiring any longer 18279 that `SSL_set_{accept,connect}_state` be called before 18280 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18281 in many applications because usually everything *appeared* to work as 18282 intended anyway -- now it really works as intended). 18283 18284 *Bodo Moeller* 18285 18286 * Move openssl.cnf out of lib/. 18287 18288 *Ulf Möller* 18289 18290 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18291 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18292 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18293 18294 *Ralf S. Engelschall* 18295 18296 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18297 handle PKCS#7 enveloped data properly. 18298 18299 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18300 18301 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18302 copying pointers. The cert_st handling is changed by this in 18303 various ways (and thus what used to be known as ctx->default_cert 18304 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18305 any longer when s->cert does not give us what we need). 18306 ssl_cert_instantiate becomes obsolete by this change. 18307 As soon as we've got the new code right (possibly it already is?), 18308 we have solved a couple of bugs of the earlier code where s->cert 18309 was used as if it could not have been shared with other SSL structures. 18310 18311 Note that using the SSL API in certain dirty ways now will result 18312 in different behaviour than observed with earlier library versions: 18313 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18314 does not influence s as it used to. 18315 18316 In order to clean up things more thoroughly, inside SSL_SESSION 18317 we don't use CERT any longer, but a new structure SESS_CERT 18318 that holds per-session data (if available); currently, this is 18319 the peer's certificate chain and, for clients, the server's certificate 18320 and temporary key. CERT holds only those values that can have 18321 meaningful defaults in an SSL_CTX. 18322 18323 *Bodo Moeller* 18324 18325 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18326 from the internal representation. Various PKCS#7 fixes: remove some 18327 evil casts and set the enc_dig_alg field properly based on the signing 18328 key type. 18329 18330 *Steve Henson* 18331 18332 * Allow PKCS#12 password to be set from the command line or the 18333 environment. Let 'ca' get its config file name from the environment 18334 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18335 and 'x509'). 18336 18337 *Steve Henson* 18338 18339 * Allow certificate policies extension to use an IA5STRING for the 18340 organization field. This is contrary to the PKIX definition but 18341 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18342 extension option. 18343 18344 *Steve Henson* 18345 18346 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18347 without disallowing inline assembler and the like for non-pedantic builds. 18348 18349 *Ben Laurie* 18350 18351 * Support Borland C++ builder. 18352 18353 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18354 18355 * Support Mingw32. 18356 18357 *Ulf Möller* 18358 18359 * SHA-1 cleanups and performance enhancements. 18360 18361 *Andy Polyakov <appro@fy.chalmers.se>* 18362 18363 * Sparc v8plus assembler for the bignum library. 18364 18365 *Andy Polyakov <appro@fy.chalmers.se>* 18366 18367 * Accept any -xxx and +xxx compiler options in Configure. 18368 18369 *Ulf Möller* 18370 18371 * Update HPUX configuration. 18372 18373 *Anonymous* 18374 18375 * Add missing `sk_<type>_unshift()` function to safestack.h 18376 18377 *Ralf S. Engelschall* 18378 18379 * New function SSL_CTX_use_certificate_chain_file that sets the 18380 "extra_cert"s in addition to the certificate. (This makes sense 18381 only for "PEM" format files, as chains as a whole are not 18382 DER-encoded.) 18383 18384 *Bodo Moeller* 18385 18386 * Support verify_depth from the SSL API. 18387 x509_vfy.c had what can be considered an off-by-one-error: 18388 Its depth (which was not part of the external interface) 18389 was actually counting the number of certificates in a chain; 18390 now it really counts the depth. 18391 18392 *Bodo Moeller* 18393 18394 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18395 instead of X509err, which often resulted in confusing error 18396 messages since the error codes are not globally unique 18397 (e.g. an alleged error in ssl3_accept when a certificate 18398 didn't match the private key). 18399 18400 * New function SSL_CTX_set_session_id_context that allows to set a default 18401 value (so that you don't need SSL_set_session_id_context for each 18402 connection using the SSL_CTX). 18403 18404 *Bodo Moeller* 18405 18406 * OAEP decoding bug fix. 18407 18408 *Ulf Möller* 18409 18410 * Support INSTALL_PREFIX for package builders, as proposed by 18411 David Harris. 18412 18413 *Bodo Moeller* 18414 18415 * New Configure options "threads" and "no-threads". For systems 18416 where the proper compiler options are known (currently Solaris 18417 and Linux), "threads" is the default. 18418 18419 *Bodo Moeller* 18420 18421 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18422 18423 *Bodo Moeller* 18424 18425 * Install various scripts to $(OPENSSLDIR)/misc, not to 18426 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18427 such as /usr/local/bin. 18428 18429 *Bodo Moeller* 18430 18431 * "make linux-shared" to build shared libraries. 18432 18433 *Niels Poppe <niels@netbox.org>* 18434 18435 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18436 18437 *Ulf Möller* 18438 18439 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18440 extension adding in x509 utility. 18441 18442 *Steve Henson* 18443 18444 * Remove NOPROTO sections and error code comments. 18445 18446 *Ulf Möller* 18447 18448 * Partial rewrite of the DEF file generator to now parse the ANSI 18449 prototypes. 18450 18451 *Steve Henson* 18452 18453 * New Configure options --prefix=DIR and --openssldir=DIR. 18454 18455 *Ulf Möller* 18456 18457 * Complete rewrite of the error code script(s). It is all now handled 18458 by one script at the top level which handles error code gathering, 18459 header rewriting and C source file generation. It should be much better 18460 than the old method: it now uses a modified version of Ulf's parser to 18461 read the ANSI prototypes in all header files (thus the old K&R definitions 18462 aren't needed for error creation any more) and do a better job of 18463 translating function codes into names. The old 'ASN1 error code embedded 18464 in a comment' is no longer necessary and it doesn't use .err files which 18465 have now been deleted. Also the error code call doesn't have to appear all 18466 on one line (which resulted in some large lines...). 18467 18468 *Steve Henson* 18469 18470 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18471 18472 *Bodo Moeller* 18473 18474 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18475 0 (which usually indicates a closed connection), but continue reading. 18476 18477 *Bodo Moeller* 18478 18479 * Fix some race conditions. 18480 18481 *Bodo Moeller* 18482 18483 * Add support for CRL distribution points extension. Add Certificate 18484 Policies and CRL distribution points documentation. 18485 18486 *Steve Henson* 18487 18488 * Move the autogenerated header file parts to crypto/opensslconf.h. 18489 18490 *Ulf Möller* 18491 18492 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18493 8 of keying material. Merlin has also confirmed interop with this fix 18494 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18495 18496 *Merlin Hughes <merlin@baltimore.ie>* 18497 18498 * Fix lots of warnings. 18499 18500 *Richard Levitte <levitte@stacken.kth.se>* 18501 18502 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18503 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18504 18505 *Richard Levitte <levitte@stacken.kth.se>* 18506 18507 * Fix problems with sizeof(long) == 8. 18508 18509 *Andy Polyakov <appro@fy.chalmers.se>* 18510 18511 * Change functions to ANSI C. 18512 18513 *Ulf Möller* 18514 18515 * Fix typos in error codes. 18516 18517 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18518 18519 * Remove defunct assembler files from Configure. 18520 18521 *Ulf Möller* 18522 18523 * SPARC v8 assembler BIGNUM implementation. 18524 18525 *Andy Polyakov <appro@fy.chalmers.se>* 18526 18527 * Support for Certificate Policies extension: both print and set. 18528 Various additions to support the r2i method this uses. 18529 18530 *Steve Henson* 18531 18532 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18533 return a const string when you are expecting an allocated buffer. 18534 18535 *Ben Laurie* 18536 18537 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18538 types DirectoryString and DisplayText. 18539 18540 *Steve Henson* 18541 18542 * Add code to allow r2i extensions to access the configuration database, 18543 add an LHASH database driver and add several ctx helper functions. 18544 18545 *Steve Henson* 18546 18547 * Fix an evil bug in bn_expand2() which caused various BN functions to 18548 fail when they extended the size of a BIGNUM. 18549 18550 *Steve Henson* 18551 18552 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18553 support typesafe stack. 18554 18555 *Steve Henson* 18556 18557 * Fix typo in SSL_[gs]et_options(). 18558 18559 *Nils Frostberg <nils@medcom.se>* 18560 18561 * Delete various functions and files that belonged to the (now obsolete) 18562 old X509V3 handling code. 18563 18564 *Steve Henson* 18565 18566 * New Configure option "rsaref". 18567 18568 *Ulf Möller* 18569 18570 * Don't auto-generate pem.h. 18571 18572 *Bodo Moeller* 18573 18574 * Introduce type-safe ASN.1 SETs. 18575 18576 *Ben Laurie* 18577 18578 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18579 18580 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18581 18582 * Introduce type-safe STACKs. This will almost certainly break lots of code 18583 that links with OpenSSL (well at least cause lots of warnings), but fear 18584 not: the conversion is trivial, and it eliminates loads of evil casts. A 18585 few STACKed things have been converted already. Feel free to convert more. 18586 In the fullness of time, I'll do away with the STACK type altogether. 18587 18588 *Ben Laurie* 18589 18590 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18591 specified in `<certfile>` by updating the entry in the index.txt file. 18592 This way one no longer has to edit the index.txt file manually for 18593 revoking a certificate. The -revoke option does the gory details now. 18594 18595 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18596 18597 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18598 `-text` option at all and this way the `-noout -text` combination was 18599 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18600 18601 *Ralf S. Engelschall* 18602 18603 * Make sure a corresponding plain text error message exists for the 18604 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18605 verify callback function determined that a certificate was revoked. 18606 18607 *Ralf S. Engelschall* 18608 18609 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18610 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18611 all available ciphers including rc5, which was forgotten until now. 18612 In order to let the testing shell script know which algorithms 18613 are available, a new (up to now undocumented) command 18614 `openssl list-cipher-commands` is used. 18615 18616 *Bodo Moeller* 18617 18618 * Bugfix: s_client occasionally would sleep in select() when 18619 it should have checked SSL_pending() first. 18620 18621 *Bodo Moeller* 18622 18623 * New functions DSA_do_sign and DSA_do_verify to provide access to 18624 the raw DSA values prior to ASN.1 encoding. 18625 18626 *Ulf Möller* 18627 18628 * Tweaks to Configure 18629 18630 *Niels Poppe <niels@netbox.org>* 18631 18632 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18633 yet... 18634 18635 *Steve Henson* 18636 18637 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18638 18639 *Ulf Möller* 18640 18641 * New config option to avoid instructions that are illegal on the 80386. 18642 The default code is faster, but requires at least a 486. 18643 18644 *Ulf Möller* 18645 18646 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18647 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18648 same as SSL2_VERSION anyway. 18649 18650 *Bodo Moeller* 18651 18652 * New "-showcerts" option for s_client. 18653 18654 *Bodo Moeller* 18655 18656 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18657 application. Various cleanups and fixes. 18658 18659 *Steve Henson* 18660 18661 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18662 modify error routines to work internally. Add error codes and PBE init 18663 to library startup routines. 18664 18665 *Steve Henson* 18666 18667 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18668 packing functions to asn1 and evp. Changed function names and error 18669 codes along the way. 18670 18671 *Steve Henson* 18672 18673 * PKCS12 integration: and so it begins... First of several patches to 18674 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18675 objects to objects.h 18676 18677 *Steve Henson* 18678 18679 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18680 and display support for Thawte strong extranet extension. 18681 18682 *Steve Henson* 18683 18684 * Add LinuxPPC support. 18685 18686 *Jeff Dubrule <igor@pobox.org>* 18687 18688 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18689 bn_div_words in alpha.s. 18690 18691 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18692 18693 * Make sure the RSA OAEP test is skipped under -DRSAref because 18694 OAEP isn't supported when OpenSSL is built with RSAref. 18695 18696 *Ulf Moeller <ulf@fitug.de>* 18697 18698 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18699 so they no longer are missing under -DNOPROTO. 18700 18701 *Soren S. Jorvang <soren@t.dk>* 18702 18703### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18704 18705 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18706 doesn't work when the session is reused. Coming soon! 18707 18708 *Ben Laurie* 18709 18710 * Fix a security hole, that allows sessions to be reused in the wrong 18711 context thus bypassing client cert protection! All software that uses 18712 client certs and session caches in multiple contexts NEEDS PATCHING to 18713 allow session reuse! A fuller solution is in the works. 18714 18715 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18716 18717 * Some more source tree cleanups (removed obsolete files 18718 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18719 permission on "config" script to be executable) and a fix for the INSTALL 18720 document. 18721 18722 *Ulf Moeller <ulf@fitug.de>* 18723 18724 * Remove some legacy and erroneous uses of malloc, free instead of 18725 Malloc, Free. 18726 18727 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18728 18729 * Make rsa_oaep_test return non-zero on error. 18730 18731 *Ulf Moeller <ulf@fitug.de>* 18732 18733 * Add support for native Solaris shared libraries. Configure 18734 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18735 if someone would make that last step automatic. 18736 18737 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18738 18739 * ctx_size was not built with the right compiler during "make links". Fixed. 18740 18741 *Ben Laurie* 18742 18743 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18744 except NULL ciphers". This means the default cipher list will no longer 18745 enable NULL ciphers. They need to be specifically enabled e.g. with 18746 the string "DEFAULT:eNULL". 18747 18748 *Steve Henson* 18749 18750 * Fix to RSA private encryption routines: if p < q then it would 18751 occasionally produce an invalid result. This will only happen with 18752 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18753 18754 *Steve Henson* 18755 18756 * Be less restrictive and allow also `perl util/perlpath.pl 18757 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 18758 because this way one can also use an interpreter named `perl5` (which is 18759 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 18760 installed as `perl`). 18761 18762 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18763 18764 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 18765 18766 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18767 18768 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 18769 advapi32.lib to Win32 build and change the pem test comparison 18770 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 18771 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 18772 and crypto/des/ede_cbcm_enc.c. 18773 18774 *Steve Henson* 18775 18776 * DES quad checksum was broken on big-endian architectures. Fixed. 18777 18778 *Ben Laurie* 18779 18780 * Comment out two functions in bio.h that aren't implemented. Fix up the 18781 Win32 test batch file so it (might) work again. The Win32 test batch file 18782 is horrible: I feel ill.... 18783 18784 *Steve Henson* 18785 18786 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 18787 in e_os.h. Audit of header files to check ANSI and non ANSI 18788 sections: 10 functions were absent from non ANSI section and not exported 18789 from Windows DLLs. Fixed up libeay.num for new functions. 18790 18791 *Steve Henson* 18792 18793 * Make `openssl version` output lines consistent. 18794 18795 *Ralf S. Engelschall* 18796 18797 * Fix Win32 symbol export lists for BIO functions: Added 18798 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 18799 to ms/libeay{16,32}.def. 18800 18801 *Ralf S. Engelschall* 18802 18803 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 18804 fine under Unix and passes some trivial tests I've now added. But the 18805 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 18806 added to make sure no one expects that this stuff really works in the 18807 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 18808 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 18809 openssl_bio.xs. 18810 18811 *Ralf S. Engelschall* 18812 18813 * Fix the generation of two part addresses in perl. 18814 18815 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 18816 18817 * Add config entry for Linux on MIPS. 18818 18819 *John Tobey <jtobey@channel1.com>* 18820 18821 * Make links whenever Configure is run, unless we are on Windoze. 18822 18823 *Ben Laurie* 18824 18825 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 18826 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 18827 in CRLs. 18828 18829 *Steve Henson* 18830 18831 * Add a useful kludge to allow package maintainers to specify compiler and 18832 other platforms details on the command line without having to patch the 18833 Configure script every time: One now can use 18834 `perl Configure <id>:<details>`, 18835 i.e. platform ids are allowed to have details appended 18836 to them (separated by colons). This is treated as there would be a static 18837 pre-configured entry in Configure's %table under key `<id>` with value 18838 `<details>` and `perl Configure <id>` is called. So, when you want to 18839 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 18840 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 18841 now, which overrides the FreeBSD-elf entry on-the-fly. 18842 18843 *Ralf S. Engelschall* 18844 18845 * Disable new TLS1 ciphersuites by default: they aren't official yet. 18846 18847 *Ben Laurie* 18848 18849 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 18850 on the `perl Configure ...` command line. This way one can compile 18851 OpenSSL libraries with Position Independent Code (PIC) which is needed 18852 for linking it into DSOs. 18853 18854 *Ralf S. Engelschall* 18855 18856 * Remarkably, export ciphers were totally broken and no-one had noticed! 18857 Fixed. 18858 18859 *Ben Laurie* 18860 18861 * Cleaned up the LICENSE document: The official contact for any license 18862 questions now is the OpenSSL core team under openssl-core@openssl.org. 18863 And add a paragraph about the dual-license situation to make sure people 18864 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 18865 to the OpenSSL toolkit. 18866 18867 *Ralf S. Engelschall* 18868 18869 * General source tree makefile cleanups: Made `making xxx in yyy...` 18870 display consistent in the source tree and replaced `/bin/rm` by `rm`. 18871 Additionally cleaned up the `make links` target: Remove unnecessary 18872 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 18873 to speed processing and no longer clutter the display with confusing 18874 stuff. Instead only the actually done links are displayed. 18875 18876 *Ralf S. Engelschall* 18877 18878 * Permit null encryption ciphersuites, used for authentication only. It used 18879 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 18880 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 18881 encryption. 18882 18883 *Ben Laurie* 18884 18885 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 18886 signed attributes when verifying signatures (this would break them), 18887 the detached data encoding was wrong and public keys obtained using 18888 X509_get_pubkey() weren't freed. 18889 18890 *Steve Henson* 18891 18892 * Add text documentation for the BUFFER functions. Also added a work around 18893 to a Win95 console bug. This was triggered by the password read stuff: the 18894 last character typed gets carried over to the next fread(). If you were 18895 generating a new cert request using 'req' for example then the last 18896 character of the passphrase would be CR which would then enter the first 18897 field as blank. 18898 18899 *Steve Henson* 18900 18901 * Added the new 'Includes OpenSSL Cryptography Software' button as 18902 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 18903 button and can be used by applications based on OpenSSL to show the 18904 relationship to the OpenSSL project. 18905 18906 *Ralf S. Engelschall* 18907 18908 * Remove confusing variables in function signatures in files 18909 ssl/ssl_lib.c and ssl/ssl.h. 18910 18911 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18912 18913 * Don't install bss_file.c under PREFIX/include/ 18914 18915 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18916 18917 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 18918 functions that return function pointers and has support for NT specific 18919 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 18920 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 18921 unsigned to signed types: this was killing the Win32 compile. 18922 18923 *Steve Henson* 18924 18925 * Add new certificate file to stack functions, 18926 SSL_add_dir_cert_subjects_to_stack() and 18927 SSL_add_file_cert_subjects_to_stack(). These largely supplant 18928 SSL_load_client_CA_file(), and can be used to add multiple certs easily 18929 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 18930 This means that Apache-SSL and similar packages don't have to mess around 18931 to add as many CAs as they want to the preferred list. 18932 18933 *Ben Laurie* 18934 18935 * Experiment with doxygen documentation. Currently only partially applied to 18936 ssl/ssl_lib.c. 18937 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 18938 openssl.doxy as the configuration file. 18939 18940 *Ben Laurie* 18941 18942 * Get rid of remaining C++-style comments which strict C compilers hate. 18943 18944 *Ralf S. Engelschall, pointed out by Carlos Amengual* 18945 18946 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 18947 compiled in by default: it has problems with large keys. 18948 18949 *Steve Henson* 18950 18951 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 18952 DH private keys and/or callback functions which directly correspond to 18953 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 18954 is needed for applications which have to configure certificates on a 18955 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 18956 (e.g. s_server). 18957 For the RSA certificate situation is makes no difference, but 18958 for the DSA certificate situation this fixes the "no shared cipher" 18959 problem where the OpenSSL cipher selection procedure failed because the 18960 temporary keys were not overtaken from the context and the API provided 18961 no way to reconfigure them. 18962 The new functions now let applications reconfigure the stuff and they 18963 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 18964 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 18965 non-public-API function ssl_cert_instantiate() is used as a helper 18966 function and also to reduce code redundancy inside ssl_rsa.c. 18967 18968 *Ralf S. Engelschall* 18969 18970 * Move s_server -dcert and -dkey options out of the undocumented feature 18971 area because they are useful for the DSA situation and should be 18972 recognized by the users. 18973 18974 *Ralf S. Engelschall* 18975 18976 * Fix the cipher decision scheme for export ciphers: the export bits are 18977 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 18978 SSL_EXP_MASK. So, the original variable has to be used instead of the 18979 already masked variable. 18980 18981 *Richard Levitte <levitte@stacken.kth.se>* 18982 18983 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 18984 18985 *Richard Levitte <levitte@stacken.kth.se>* 18986 18987 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 18988 from `int` to `unsigned int` because it is a length and initialized by 18989 EVP_DigestFinal() which expects an `unsigned int *`. 18990 18991 *Richard Levitte <levitte@stacken.kth.se>* 18992 18993 * Don't hard-code path to Perl interpreter on shebang line of Configure 18994 script. Instead use the usual Shell->Perl transition trick. 18995 18996 *Ralf S. Engelschall* 18997 18998 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 18999 (in addition to RSA certificates) to match the behaviour of `openssl dsa 19000 -noout -modulus` as it's already the case for `openssl rsa -noout 19001 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 19002 currently the public key is printed (a decision which was already done by 19003 `openssl dsa -modulus` in the past) which serves a similar purpose. 19004 Additionally the NO_RSA no longer completely removes the whole -modulus 19005 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 19006 now, too. 19007 19008 *Ralf S. Engelschall* 19009 19010 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 19011 BIO. See the source (crypto/evp/bio_ok.c) for more info. 19012 19013 *Arne Ansper <arne@ats.cyber.ee>* 19014 19015 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 19016 to be added. Now both 'req' and 'ca' can use new objects defined in the 19017 config file. 19018 19019 *Steve Henson* 19020 19021 * Add cool BIO that does syslog (or event log on NT). 19022 19023 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 19024 19025 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 19026 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 19027 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 19028 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 19029 19030 *Ben Laurie* 19031 19032 * Add preliminary config info for new extension code. 19033 19034 *Steve Henson* 19035 19036 * Make RSA_NO_PADDING really use no padding. 19037 19038 *Ulf Moeller <ulf@fitug.de>* 19039 19040 * Generate errors when private/public key check is done. 19041 19042 *Ben Laurie* 19043 19044 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 19045 for some CRL extensions and new objects added. 19046 19047 *Steve Henson* 19048 19049 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 19050 key usage extension and fuller support for authority key id. 19051 19052 *Steve Henson* 19053 19054 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 19055 padding method for RSA, which is recommended for new applications in PKCS 19056 #1 v2.0 (RFC 2437, October 1998). 19057 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 19058 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 19059 against Bleichbacher's attack on RSA. 19060 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 19061 Ben Laurie* 19062 19063 * Updates to the new SSL compression code 19064 19065 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19066 19067 * Fix so that the version number in the master secret, when passed 19068 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 19069 (because the server will not accept higher), that the version number 19070 is 0x03,0x01, not 0x03,0x00 19071 19072 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19073 19074 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 19075 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 19076 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 19077 19078 *Steve Henson* 19079 19080 * Support for RAW extensions where an arbitrary extension can be 19081 created by including its DER encoding. See `apps/openssl.cnf` for 19082 an example. 19083 19084 *Steve Henson* 19085 19086 * Make sure latest Perl versions don't interpret some generated C array 19087 code as Perl array code in the crypto/err/err_genc.pl script. 19088 19089 *Lars Weber <3weber@informatik.uni-hamburg.de>* 19090 19091 * Modify ms/do_ms.bat to not generate assembly language makefiles since 19092 not many people have the assembler. Various Win32 compilation fixes and 19093 update to the INSTALL.W32 file with (hopefully) more accurate Win32 19094 build instructions. 19095 19096 *Steve Henson* 19097 19098 * Modify configure script 'Configure' to automatically create crypto/date.h 19099 file under Win32 and also build pem.h from pem.org. New script 19100 util/mkfiles.pl to create the MINFO file on environments that can't do a 19101 'make files': perl util/mkfiles.pl >MINFO should work. 19102 19103 *Steve Henson* 19104 19105 * Major rework of DES function declarations, in the pursuit of correctness 19106 and purity. As a result, many evil casts evaporated, and some weirdness, 19107 too. You may find this causes warnings in your code. Zapping your evil 19108 casts will probably fix them. Mostly. 19109 19110 *Ben Laurie* 19111 19112 * Fix for a typo in asn1.h. Bug fix to object creation script 19113 obj_dat.pl. It considered a zero in an object definition to mean 19114 "end of object": none of the objects in objects.h have any zeros 19115 so it wasn't spotted. 19116 19117 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 19118 19119 * Add support for Triple DES Cipher Block Chaining with Output Feedback 19120 Masking (CBCM). In the absence of test vectors, the best I have been able 19121 to do is check that the decrypt undoes the encrypt, so far. Send me test 19122 vectors if you have them. 19123 19124 *Ben Laurie* 19125 19126 * Correct calculation of key length for export ciphers (too much space was 19127 allocated for null ciphers). This has not been tested! 19128 19129 *Ben Laurie* 19130 19131 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19132 message is now correct (it understands "crypto" and "ssl" on its 19133 command line). There is also now an "update" option. This will update 19134 the util/ssleay.num and util/libeay.num files with any new functions. 19135 If you do a: 19136 perl util/mkdef.pl crypto ssl update 19137 it will update them. 19138 19139 *Steve Henson* 19140 19141 * Overhauled the Perl interface: 19142 - ported BN stuff to OpenSSL's different BN library 19143 - made the perl/ source tree CVS-aware 19144 - renamed the package from SSLeay to OpenSSL (the files still contain 19145 their history because I've copied them in the repository) 19146 - removed obsolete files (the test scripts will be replaced 19147 by better Test::Harness variants in the future) 19148 19149 *Ralf S. Engelschall* 19150 19151 * First cut for a very conservative source tree cleanup: 19152 1. merge various obsolete readme texts into doc/ssleay.txt 19153 where we collect the old documents and readme texts. 19154 2. remove the first part of files where I'm already sure that we no 19155 longer need them because of three reasons: either they are just temporary 19156 files which were left by Eric or they are preserved original files where 19157 I've verified that the diff is also available in the CVS via "cvs diff 19158 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19159 the crypto/md/ stuff). 19160 19161 *Ralf S. Engelschall* 19162 19163 * More extension code. Incomplete support for subject and issuer alt 19164 name, issuer and authority key id. Change the i2v function parameters 19165 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19166 what that's for :-) Fix to ASN1 macro which messed up 19167 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19168 19169 *Steve Henson* 19170 19171 * Preliminary support for ENUMERATED type. This is largely copied from the 19172 INTEGER code. 19173 19174 *Steve Henson* 19175 19176 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19177 19178 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19179 19180 * Make sure `make rehash` target really finds the `openssl` program. 19181 19182 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19183 19184 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19185 like to hear about it if this slows down other processors. 19186 19187 *Ben Laurie* 19188 19189 * Add CygWin32 platform information to Configure script. 19190 19191 *Alan Batie <batie@aahz.jf.intel.com>* 19192 19193 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19194 19195 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19196 19197 * New program nseq to manipulate netscape certificate sequences 19198 19199 *Steve Henson* 19200 19201 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19202 few typos. 19203 19204 *Steve Henson* 19205 19206 * Fixes to BN code. Previously the default was to define BN_RECURSION 19207 but the BN code had some problems that would cause failures when 19208 doing certificate verification and some other functions. 19209 19210 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19211 19212 * Add ASN1 and PEM code to support netscape certificate sequences. 19213 19214 *Steve Henson* 19215 19216 * Add ASN1 and PEM code to support netscape certificate sequences. 19217 19218 *Steve Henson* 19219 19220 * Add several PKIX and private extended key usage OIDs. 19221 19222 *Steve Henson* 19223 19224 * Modify the 'ca' program to handle the new extension code. Modify 19225 openssl.cnf for new extension format, add comments. 19226 19227 *Steve Henson* 19228 19229 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19230 and add a sample to openssl.cnf so req -x509 now adds appropriate 19231 CA extensions. 19232 19233 *Steve Henson* 19234 19235 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19236 error code, add initial support to X509_print() and x509 application. 19237 19238 *Steve Henson* 19239 19240 * Takes a deep breath and start adding X509 V3 extension support code. Add 19241 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19242 stuff is currently isolated and isn't even compiled yet. 19243 19244 *Steve Henson* 19245 19246 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19247 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19248 Removed the versions check from X509 routines when loading extensions: 19249 this allows certain broken certificates that don't set the version 19250 properly to be processed. 19251 19252 *Steve Henson* 19253 19254 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19255 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19256 can still be regenerated with "make depend". 19257 19258 *Ben Laurie* 19259 19260 * Spelling mistake in C version of CAST-128. 19261 19262 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19263 19264 * Changes to the error generation code. The perl script err-code.pl 19265 now reads in the old error codes and retains the old numbers, only 19266 adding new ones if necessary. It also only changes the .err files if new 19267 codes are added. The makefiles have been modified to only insert errors 19268 when needed (to avoid needlessly modifying header files). This is done 19269 by only inserting errors if the .err file is newer than the auto generated 19270 C file. To rebuild all the error codes from scratch (the old behaviour) 19271 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19272 or delete all the .err files. 19273 19274 *Steve Henson* 19275 19276 * CAST-128 was incorrectly implemented for short keys. The C version has 19277 been fixed, but is untested. The assembler versions are also fixed, but 19278 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19279 to regenerate it if needed. 19280 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19281 Hagino <itojun@kame.net>* 19282 19283 * File was opened incorrectly in randfile.c. 19284 19285 *Ulf Möller <ulf@fitug.de>* 19286 19287 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19288 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19289 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19290 al: it's just almost always a UTCTime. Note this patch adds new error 19291 codes so do a "make errors" if there are problems. 19292 19293 *Steve Henson* 19294 19295 * Correct Linux 1 recognition in config. 19296 19297 *Ulf Möller <ulf@fitug.de>* 19298 19299 * Remove pointless MD5 hash when using DSA keys in ca. 19300 19301 *Anonymous <nobody@replay.com>* 19302 19303 * Generate an error if given an empty string as a cert directory. Also 19304 generate an error if handed NULL (previously returned 0 to indicate an 19305 error, but didn't set one). 19306 19307 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19308 19309 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19310 19311 *Ben Laurie* 19312 19313 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19314 parameters. This was causing a warning which killed off the Win32 compile. 19315 19316 *Steve Henson* 19317 19318 * Remove C++ style comments from crypto/bn/bn_local.h. 19319 19320 *Neil Costigan <neil.costigan@celocom.com>* 19321 19322 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19323 based on a text string, looking up short and long names and finally 19324 "dot" format. The "dot" format stuff didn't work. Added new function 19325 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19326 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19327 OID is not part of the table. 19328 19329 *Steve Henson* 19330 19331 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19332 X509_LOOKUP_by_alias(). 19333 19334 *Ben Laurie* 19335 19336 * Sort openssl functions by name. 19337 19338 *Ben Laurie* 19339 19340 * Get the `gendsa` command working and add it to the `list` command. Remove 19341 encryption from sample DSA keys (in case anyone is interested the password 19342 was "1234"). 19343 19344 *Steve Henson* 19345 19346 * Make *all* `*_free` functions accept a NULL pointer. 19347 19348 *Frans Heymans <fheymans@isaserver.be>* 19349 19350 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19351 NULL pointers. 19352 19353 *Anonymous <nobody@replay.com>* 19354 19355 * s_server should send the CAfile as acceptable CAs, not its own cert. 19356 19357 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19358 19359 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19360 19361 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19362 19363 * Temp key "for export" tests were wrong in s3_srvr.c. 19364 19365 *Anonymous <nobody@replay.com>* 19366 19367 * Add prototype for temp key callback functions 19368 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19369 19370 *Ben Laurie* 19371 19372 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19373 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19374 19375 *Steve Henson* 19376 19377 * X509_name_add_entry() freed the wrong thing after an error. 19378 19379 *Arne Ansper <arne@ats.cyber.ee>* 19380 19381 * rsa_eay.c would attempt to free a NULL context. 19382 19383 *Arne Ansper <arne@ats.cyber.ee>* 19384 19385 * BIO_s_socket() had a broken should_retry() on Windoze. 19386 19387 *Arne Ansper <arne@ats.cyber.ee>* 19388 19389 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19390 19391 *Arne Ansper <arne@ats.cyber.ee>* 19392 19393 * Make sure the already existing X509_STORE->depth variable is initialized 19394 in X509_STORE_new(), but document the fact that this variable is still 19395 unused in the certificate verification process. 19396 19397 *Ralf S. Engelschall* 19398 19399 * Fix the various library and `apps/` files to free up pkeys obtained from 19400 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19401 19402 *Steve Henson* 19403 19404 * Fix reference counting in X509_PUBKEY_get(). This makes 19405 demos/maurice/example2.c work, amongst others, probably. 19406 19407 *Steve Henson and Ben Laurie* 19408 19409 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19410 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19411 are no longer created. This way we have a single and consistent command 19412 line interface `openssl <command>`, similar to `cvs <command>`. 19413 19414 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19415 19416 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19417 BIT STRING wrapper always have zero unused bits. 19418 19419 *Steve Henson* 19420 19421 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19422 19423 *Steve Henson* 19424 19425 * Make the top-level INSTALL documentation easier to understand. 19426 19427 *Paul Sutton* 19428 19429 * Makefiles updated to exit if an error occurs in a sub-directory 19430 make (including if user presses ^C) [Paul Sutton] 19431 19432 * Make Montgomery context stuff explicit in RSA data structure. 19433 19434 *Ben Laurie* 19435 19436 * Fix build order of pem and err to allow for generated pem.h. 19437 19438 *Ben Laurie* 19439 19440 * Fix renumbering bug in X509_NAME_delete_entry(). 19441 19442 *Ben Laurie* 19443 19444 * Enhanced the err-ins.pl script so it makes the error library number 19445 global and can add a library name. This is needed for external ASN1 and 19446 other error libraries. 19447 19448 *Steve Henson* 19449 19450 * Fixed sk_insert which never worked properly. 19451 19452 *Steve Henson* 19453 19454 * Fix ASN1 macros so they can handle indefinite length constructed 19455 EXPLICIT tags. Some non standard certificates use these: they can now 19456 be read in. 19457 19458 *Steve Henson* 19459 19460 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19461 into a single doc/ssleay.txt bundle. This way the information is still 19462 preserved but no longer messes up this directory. Now it's new room for 19463 the new set of documentation files. 19464 19465 *Ralf S. Engelschall* 19466 19467 * SETs were incorrectly DER encoded. This was a major pain, because they 19468 shared code with SEQUENCEs, which aren't coded the same. This means that 19469 almost everything to do with SETs or SEQUENCEs has either changed name or 19470 number of arguments. 19471 19472 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19473 19474 * Fix test data to work with the above. 19475 19476 *Ben Laurie* 19477 19478 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19479 was already fixed by Eric for 0.9.1 it seems. 19480 19481 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19482 19483 * Autodetect FreeBSD3. 19484 19485 *Ben Laurie* 19486 19487 * Fix various bugs in Configure. This affects the following platforms: 19488 nextstep 19489 ncr-scde 19490 unixware-2.0 19491 unixware-2.0-pentium 19492 sco5-cc. 19493 19494 *Ben Laurie* 19495 19496 * Eliminate generated files from CVS. Reorder tests to regenerate files 19497 before they are needed. 19498 19499 *Ben Laurie* 19500 19501 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19502 19503 *Ben Laurie* 19504 19505### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19506 19507 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19508 changed SSLeay to OpenSSL in version strings. 19509 19510 *Ralf S. Engelschall* 19511 19512 * Some fixups to the top-level documents. 19513 19514 *Paul Sutton* 19515 19516 * Fixed the nasty bug where rsaref.h was not found under compile-time 19517 because the symlink to include/ was missing. 19518 19519 *Ralf S. Engelschall* 19520 19521 * Incorporated the popular no-RSA/DSA-only patches 19522 which allow to compile an RSA-free SSLeay. 19523 19524 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19525 19526 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19527 when "ssleay" is still not found. 19528 19529 *Ralf S. Engelschall* 19530 19531 * Added more platforms to Configure: Cray T3E, HPUX 11, 19532 19533 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19534 19535 * Updated the README file. 19536 19537 *Ralf S. Engelschall* 19538 19539 * Added various .cvsignore files in the CVS repository subdirs 19540 to make a "cvs update" really silent. 19541 19542 *Ralf S. Engelschall* 19543 19544 * Recompiled the error-definition header files and added 19545 missing symbols to the Win32 linker tables. 19546 19547 *Ralf S. Engelschall* 19548 19549 * Cleaned up the top-level documents; 19550 o new files: CHANGES and LICENSE 19551 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19552 o merged COPYRIGHT into LICENSE 19553 o removed obsolete TODO file 19554 o renamed MICROSOFT to INSTALL.W32 19555 19556 *Ralf S. Engelschall* 19557 19558 * Removed dummy files from the 0.9.1b source tree: 19559 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19560 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19561 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19562 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19563 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19564 19565 *Ralf S. Engelschall* 19566 19567 * Added various platform portability fixes. 19568 19569 *Mark J. Cox* 19570 19571 * The Genesis of the OpenSSL rpject: 19572 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19573 Young and Tim J. Hudson created while they were working for C2Net until 19574 summer 1998. 19575 19576 *The OpenSSL Project* 19577 19578### Changes between 0.9.0b and 0.9.1b [not released] 19579 19580 * Updated a few CA certificates under certs/ 19581 19582 *Eric A. Young* 19583 19584 * Changed some BIGNUM api stuff. 19585 19586 *Eric A. Young* 19587 19588 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19589 DGUX x86, Linux Alpha, etc. 19590 19591 *Eric A. Young* 19592 19593 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19594 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19595 available). 19596 19597 *Eric A. Young* 19598 19599 * Add -strparse option to asn1pars program which parses nested 19600 binary structures 19601 19602 *Dr Stephen Henson <shenson@bigfoot.com>* 19603 19604 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19605 19606 *Eric A. Young* 19607 19608 * DSA fix for "ca" program. 19609 19610 *Eric A. Young* 19611 19612 * Added "-genkey" option to "dsaparam" program. 19613 19614 *Eric A. Young* 19615 19616 * Added RIPE MD160 (rmd160) message digest. 19617 19618 *Eric A. Young* 19619 19620 * Added -a (all) option to "ssleay version" command. 19621 19622 *Eric A. Young* 19623 19624 * Added PLATFORM define which is the id given to Configure. 19625 19626 *Eric A. Young* 19627 19628 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19629 19630 *Eric A. Young* 19631 19632 * Extended the ASN.1 parser routines. 19633 19634 *Eric A. Young* 19635 19636 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19637 19638 *Eric A. Young* 19639 19640 * Added a BN_CTX to the BN library. 19641 19642 *Eric A. Young* 19643 19644 * Fixed the weak key values in DES library 19645 19646 *Eric A. Young* 19647 19648 * Changed API in EVP library for cipher aliases. 19649 19650 *Eric A. Young* 19651 19652 * Added support for RC2/64bit cipher. 19653 19654 *Eric A. Young* 19655 19656 * Converted the lhash library to the crypto/mem.c functions. 19657 19658 *Eric A. Young* 19659 19660 * Added more recognized ASN.1 object ids. 19661 19662 *Eric A. Young* 19663 19664 * Added more RSA padding checks for SSL/TLS. 19665 19666 *Eric A. Young* 19667 19668 * Added BIO proxy/filter functionality. 19669 19670 *Eric A. Young* 19671 19672 * Added extra_certs to SSL_CTX which can be used 19673 send extra CA certificates to the client in the CA cert chain sending 19674 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19675 19676 *Eric A. Young* 19677 19678 * Now Fortezza is denied in the authentication phase because 19679 this is key exchange mechanism is not supported by SSLeay at all. 19680 19681 *Eric A. Young* 19682 19683 * Additional PKCS1 checks. 19684 19685 *Eric A. Young* 19686 19687 * Support the string "TLSv1" for all TLS v1 ciphers. 19688 19689 *Eric A. Young* 19690 19691 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19692 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19693 19694 *Eric A. Young* 19695 19696 * Fixed a few memory leaks. 19697 19698 *Eric A. Young* 19699 19700 * Fixed various code and comment typos. 19701 19702 *Eric A. Young* 19703 19704 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19705 bytes sent in the client random. 19706 19707 *Edward Bishop <ebishop@spyglass.com>* 19708 19709<!-- Links --> 19710 19711[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 19712[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 19713[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 19714[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 19715[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 19716[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 19717[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 19718[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 19719[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 19720[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19721[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19722[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19723[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19724[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19725[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19726[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19727[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19728[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19729[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19730[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 19731[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19732[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19733[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19734[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19735[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19736[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19737[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19738[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19739[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19740[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19741[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 19742[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 19743[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 19744[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 19745[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 19746[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 19747[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 19748[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 19749[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 19750[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 19751[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 19752[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 19753[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 19754[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 19755[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 19756[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 19757[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 19758[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 19759[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 19760[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 19761[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 19762[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 19763[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 19764[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 19765[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 19766[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 19767[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 19768[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 19769[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 19770[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 19771[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 19772[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 19773[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 19774[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 19775[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 19776[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 19777[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 19778[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 19779[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 19780[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 19781[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 19782[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 19783[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 19784[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 19785[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 19786[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 19787[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 19788[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 19789[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 19790[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 19791[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 19792[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 19793[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 19794[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 19795[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 19796[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 19797[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 19798[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 19799[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 19800[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 19801[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 19802[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 19803[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 19804[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 19805[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 19806[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 19807[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 19808[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 19809[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 19810[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 19811[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 19812[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 19813[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 19814[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 19815[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 19816[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 19817[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 19818[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 19819[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 19820[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 19821[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 19822[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 19823[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 19824[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 19825[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 19826[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 19827[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 19828[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 19829[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 19830[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 19831[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 19832[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 19833[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 19834[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 19835[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 19836[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 19837[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 19838[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 19839[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 19840[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 19841[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 19842[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 19843[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 19844[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 19845[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 19846[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 19847[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 19848[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 19849[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 19850[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 19851[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 19852[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 19853[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 19854[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 19855[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 19856[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 19857[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 19858[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 19859[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 19860[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 19861[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 19862[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 19863[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 19864[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 19865[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 19866[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 19867[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 19868[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 19869[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 19870[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 19871[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 19872[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 19873[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 19874[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 19875[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 19876[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 19877[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 19878[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 19879[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 19880[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 19881[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 19882[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 19883[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 19884[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 19885[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 19886[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 19887[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 19888[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 19889[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 19890[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 19891[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 19892[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 19893