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 3.0.10 and 3.0.11 [19 Sep 2023] 32 33 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows. 34 35 The POLY1305 MAC (message authentication code) implementation in OpenSSL 36 does not save the contents of non-volatile XMM registers on Windows 64 37 platform when calculating the MAC of data larger than 64 bytes. Before 38 returning to the caller all the XMM registers are set to zero rather than 39 restoring their previous content. The vulnerable code is used only on newer 40 x86_64 processors supporting the AVX512-IFMA instructions. 41 42 The consequences of this kind of internal application state corruption can 43 be various - from no consequences, if the calling application does not 44 depend on the contents of non-volatile XMM registers at all, to the worst 45 consequences, where the attacker could get complete control of the 46 application process. However given the contents of the registers are just 47 zeroized so the attacker cannot put arbitrary values inside, the most likely 48 consequence, if any, would be an incorrect result of some application 49 dependent calculations or a crash leading to a denial of service. 50 51 ([CVE-2023-4807]) 52 53 *Bernd Edlinger* 54 55### Changes between 3.0.9 and 3.0.10 [1 Aug 2023] 56 57 * Fix excessive time spent checking DH q parameter value. 58 59 The function DH_check() performs various checks on DH parameters. After 60 fixing CVE-2023-3446 it was discovered that a large q parameter value can 61 also trigger an overly long computation during some of these checks. 62 A correct q value, if present, cannot be larger than the modulus p 63 parameter, thus it is unnecessary to perform these checks if q is larger 64 than p. 65 66 If DH_check() is called with such q parameter value, 67 DH_CHECK_INVALID_Q_VALUE return flag is set and the computationally 68 intensive checks are skipped. 69 70 ([CVE-2023-3817]) 71 72 *Tomáš Mráz* 73 74 * Fix DH_check() excessive time with over sized modulus. 75 76 The function DH_check() performs various checks on DH parameters. One of 77 those checks confirms that the modulus ("p" parameter) is not too large. 78 Trying to use a very large modulus is slow and OpenSSL will not normally use 79 a modulus which is over 10,000 bits in length. 80 81 However the DH_check() function checks numerous aspects of the key or 82 parameters that have been supplied. Some of those checks use the supplied 83 modulus value even if it has already been found to be too large. 84 85 A new limit has been added to DH_check of 32,768 bits. Supplying a 86 key/parameters with a modulus over this size will simply cause DH_check() to 87 fail. 88 89 ([CVE-2023-3446]) 90 91 *Matt Caswell* 92 93 * Do not ignore empty associated data entries with AES-SIV. 94 95 The AES-SIV algorithm allows for authentication of multiple associated 96 data entries along with the encryption. To authenticate empty data the 97 application has to call `EVP_EncryptUpdate()` (or `EVP_CipherUpdate()`) 98 with NULL pointer as the output buffer and 0 as the input buffer length. 99 The AES-SIV implementation in OpenSSL just returns success for such call 100 instead of performing the associated data authentication operation. 101 The empty data thus will not be authenticated. ([CVE-2023-2975]) 102 103 Thanks to Juerg Wullschleger (Google) for discovering the issue. 104 105 The fix changes the authentication tag value and the ciphertext for 106 applications that use empty associated data entries with AES-SIV. 107 To decrypt data encrypted with previous versions of OpenSSL the application 108 has to skip calls to `EVP_DecryptUpdate()` for empty associated data 109 entries. 110 111 *Tomáš Mráz* 112 113### Changes between 3.0.8 and 3.0.9 [30 May 2023] 114 115 * Mitigate for the time it takes for `OBJ_obj2txt` to translate gigantic 116 OBJECT IDENTIFIER sub-identifiers to canonical numeric text form. 117 118 OBJ_obj2txt() would translate any size OBJECT IDENTIFIER to canonical 119 numeric text form. For gigantic sub-identifiers, this would take a very 120 long time, the time complexity being O(n^2) where n is the size of that 121 sub-identifier. ([CVE-2023-2650]) 122 123 To mitigitate this, `OBJ_obj2txt()` will only translate an OBJECT 124 IDENTIFIER to canonical numeric text form if the size of that OBJECT 125 IDENTIFIER is 586 bytes or less, and fail otherwise. 126 127 The basis for this restriction is [RFC 2578 (STD 58), section 3.5]. OBJECT 128 IDENTIFIER values, which stipulates that OBJECT IDENTIFIERS may have at 129 most 128 sub-identifiers, and that the maximum value that each sub- 130 identifier may have is 2^32-1 (4294967295 decimal). 131 132 For each byte of every sub-identifier, only the 7 lower bits are part of 133 the value, so the maximum amount of bytes that an OBJECT IDENTIFIER with 134 these restrictions may occupy is 32 * 128 / 7, which is approximately 586 135 bytes. 136 137 *Richard Levitte* 138 139 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms which 140 happens if the buffer size is 4 mod 5 in 16 byte AES blocks. This can 141 trigger a crash of an application using AES-XTS decryption if the memory 142 just after the buffer being decrypted is not mapped. 143 Thanks to Anton Romanov (Amazon) for discovering the issue. 144 ([CVE-2023-1255]) 145 146 *Nevine Ebeid* 147 148 * Reworked the Fix for the Timing Oracle in RSA Decryption ([CVE-2022-4304]). 149 The previous fix for this timing side channel turned out to cause 150 a severe 2-3x performance regression in the typical use case 151 compared to 3.0.7. The new fix uses existing constant time 152 code paths, and restores the previous performance level while 153 fully eliminating all existing timing side channels. 154 The fix was developed by Bernd Edlinger with testing support 155 by Hubert Kario. 156 157 *Bernd Edlinger* 158 159 * Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention 160 that it does not enable policy checking. Thanks to David Benjamin for 161 discovering this issue. 162 ([CVE-2023-0466]) 163 164 *Tomáš Mráz* 165 166 * Fixed an issue where invalid certificate policies in leaf certificates are 167 silently ignored by OpenSSL and other certificate policy checks are skipped 168 for that certificate. A malicious CA could use this to deliberately assert 169 invalid certificate policies in order to circumvent policy checking on the 170 certificate altogether. 171 ([CVE-2023-0465]) 172 173 *Matt Caswell* 174 175 * Limited the number of nodes created in a policy tree to mitigate 176 against CVE-2023-0464. The default limit is set to 1000 nodes, which 177 should be sufficient for most installations. If required, the limit 178 can be adjusted by setting the OPENSSL_POLICY_TREE_NODES_MAX build 179 time define to a desired maximum number of nodes or zero to allow 180 unlimited growth. 181 ([CVE-2023-0464]) 182 183 *Paul Dale* 184 185### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 186 187 * Fixed NULL dereference during PKCS7 data verification. 188 189 A NULL pointer can be dereferenced when signatures are being 190 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 191 algorithm used for the signature is known to the OpenSSL library but 192 the implementation of the hash algorithm is not available the digest 193 initialization will fail. There is a missing check for the return 194 value from the initialization function which later leads to invalid 195 usage of the digest API most likely leading to a crash. 196 ([CVE-2023-0401]) 197 198 PKCS7 data is processed by the SMIME library calls and also by the 199 time stamp (TS) library calls. The TLS implementation in OpenSSL does 200 not call these functions however third party applications would be 201 affected if they call these functions to verify signatures on untrusted 202 data. 203 204 *Tomáš Mráz* 205 206 * Fixed X.400 address type confusion in X.509 GeneralName. 207 208 There is a type confusion vulnerability relating to X.400 address processing 209 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 210 but the public structure definition for GENERAL_NAME incorrectly specified 211 the type of the x400Address field as ASN1_TYPE. This field is subsequently 212 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 213 than an ASN1_STRING. 214 215 When CRL checking is enabled (i.e. the application sets the 216 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 217 pass arbitrary pointers to a memcmp call, enabling them to read memory 218 contents or enact a denial of service. 219 ([CVE-2023-0286]) 220 221 *Hugo Landau* 222 223 * Fixed NULL dereference validating DSA public key. 224 225 An invalid pointer dereference on read can be triggered when an 226 application tries to check a malformed DSA public key by the 227 EVP_PKEY_public_check() function. This will most likely lead 228 to an application crash. This function can be called on public 229 keys supplied from untrusted sources which could allow an attacker 230 to cause a denial of service attack. 231 232 The TLS implementation in OpenSSL does not call this function 233 but applications might call the function if there are additional 234 security requirements imposed by standards such as FIPS 140-3. 235 ([CVE-2023-0217]) 236 237 *Shane Lontis, Tomáš Mráz* 238 239 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 240 241 An invalid pointer dereference on read can be triggered when an 242 application tries to load malformed PKCS7 data with the 243 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 244 245 The result of the dereference is an application crash which could 246 lead to a denial of service attack. The TLS implementation in OpenSSL 247 does not call this function however third party applications might 248 call these functions on untrusted data. 249 ([CVE-2023-0216]) 250 251 *Tomáš Mráz* 252 253 * Fixed Use-after-free following BIO_new_NDEF. 254 255 The public API function BIO_new_NDEF is a helper function used for 256 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 257 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 258 be called directly by end user applications. 259 260 The function receives a BIO from the caller, prepends a new BIO_f_asn1 261 filter BIO onto the front of it to form a BIO chain, and then returns 262 the new head of the BIO chain to the caller. Under certain conditions, 263 for example if a CMS recipient public key is invalid, the new filter BIO 264 is freed and the function returns a NULL result indicating a failure. 265 However, in this case, the BIO chain is not properly cleaned up and the 266 BIO passed by the caller still retains internal pointers to the previously 267 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 268 then a use-after-free will occur. This will most likely result in a crash. 269 ([CVE-2023-0215]) 270 271 *Viktor Dukhovni, Matt Caswell* 272 273 * Fixed Double free after calling PEM_read_bio_ex. 274 275 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 276 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 277 data. If the function succeeds then the "name_out", "header" and "data" 278 arguments are populated with pointers to buffers containing the relevant 279 decoded data. The caller is responsible for freeing those buffers. It is 280 possible to construct a PEM file that results in 0 bytes of payload data. 281 In this case PEM_read_bio_ex() will return a failure code but will populate 282 the header argument with a pointer to a buffer that has already been freed. 283 If the caller also frees this buffer then a double free will occur. This 284 will most likely lead to a crash. 285 286 The functions PEM_read_bio() and PEM_read() are simple wrappers around 287 PEM_read_bio_ex() and therefore these functions are also directly affected. 288 289 These functions are also called indirectly by a number of other OpenSSL 290 functions including PEM_X509_INFO_read_bio_ex() and 291 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 292 internal uses of these functions are not vulnerable because the caller does 293 not free the header argument if PEM_read_bio_ex() returns a failure code. 294 ([CVE-2022-4450]) 295 296 *Kurt Roeckx, Matt Caswell* 297 298 * Fixed Timing Oracle in RSA Decryption. 299 300 A timing based side channel exists in the OpenSSL RSA Decryption 301 implementation which could be sufficient to recover a plaintext across 302 a network in a Bleichenbacher style attack. To achieve a successful 303 decryption an attacker would have to be able to send a very large number 304 of trial messages for decryption. The vulnerability affects all RSA padding 305 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 306 ([CVE-2022-4304]) 307 308 *Dmitry Belyavsky, Hubert Kario* 309 310 * Fixed X.509 Name Constraints Read Buffer Overflow. 311 312 A read buffer overrun can be triggered in X.509 certificate verification, 313 specifically in name constraint checking. The read buffer overrun might 314 result in a crash which could lead to a denial of service attack. 315 In a TLS client, this can be triggered by connecting to a malicious 316 server. In a TLS server, this can be triggered if the server requests 317 client authentication and a malicious client connects. 318 ([CVE-2022-4203]) 319 320 *Viktor Dukhovni* 321 322 * Fixed X.509 Policy Constraints Double Locking security issue. 323 324 If an X.509 certificate contains a malformed policy constraint and 325 policy processing is enabled, then a write lock will be taken twice 326 recursively. On some operating systems (most widely: Windows) this 327 results in a denial of service when the affected process hangs. Policy 328 processing being enabled on a publicly facing server is not considered 329 to be a common setup. 330 ([CVE-2022-3996]) 331 332 *Paul Dale* 333 334 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 335 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 336 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 337 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 338 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 339 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 340 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 341 for legacy EC and SM2 keys is also changed similarly to honor the 342 equivalent conversion format flag as specified in the underlying 343 `EC_KEY` object being exported to a provider, when this function is 344 called through `EVP_PKEY_export()`. 345 346 *Nicola Tuveri* 347 348### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 349 350 * Fixed two buffer overflows in punycode decoding functions. 351 352 A buffer overrun can be triggered in X.509 certificate verification, 353 specifically in name constraint checking. Note that this occurs after 354 certificate chain signature verification and requires either a CA to 355 have signed the malicious certificate or for the application to continue 356 certificate verification despite failure to construct a path to a trusted 357 issuer. 358 359 In a TLS client, this can be triggered by connecting to a malicious 360 server. In a TLS server, this can be triggered if the server requests 361 client authentication and a malicious client connects. 362 363 An attacker can craft a malicious email address to overflow 364 an arbitrary number of bytes containing the `.` character (decimal 46) 365 on the stack. This buffer overflow could result in a crash (causing a 366 denial of service). 367 ([CVE-2022-3786]) 368 369 An attacker can craft a malicious email address to overflow four 370 attacker-controlled bytes on the stack. This buffer overflow could 371 result in a crash (causing a denial of service) or potentially remote code 372 execution depending on stack layout for any given platform/compiler. 373 ([CVE-2022-3602]) 374 375 *Paul Dale* 376 377 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 378 parameters in OpenSSL code. 379 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 380 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 381 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 382 Using these invalid names may cause algorithms to use slower methods 383 that ignore the CRT parameters. 384 385 *Shane Lontis* 386 387 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 388 operations. 389 390 *Tomáš Mráz* 391 392 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 393 data to be signed before signing the certificate. 394 395 *Gibeom Gwon* 396 397 * Added RIPEMD160 to the default provider. 398 399 *Paul Dale* 400 401 * Ensured that the key share group sent or accepted for the key exchange 402 is allowed for the protocol version. 403 404 *Matt Caswell* 405 406### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 407 408 * OpenSSL supports creating a custom cipher via the legacy 409 EVP_CIPHER_meth_new() function and associated function calls. This function 410 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 411 to use the new provider mechanism in order to implement custom ciphers. 412 413 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 414 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 415 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 416 and decryption initialisation functions). Instead of using the custom cipher 417 directly it incorrectly tries to fetch an equivalent cipher from the 418 available providers. An equivalent cipher is found based on the NID passed to 419 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 420 given cipher. However it is possible for an application to incorrectly pass 421 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 422 is used in this way the OpenSSL encryption/decryption initialisation function 423 will match the NULL cipher as being equivalent and will fetch this from the 424 available providers. This will succeed if the default provider has been 425 loaded (or if a third party provider has been loaded that offers this 426 cipher). Using the NULL cipher means that the plaintext is emitted as the 427 ciphertext. 428 429 Applications are only affected by this issue if they call 430 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 431 encryption/decryption initialisation function. Applications that only use 432 SSL/TLS are not impacted by this issue. 433 ([CVE-2022-3358]) 434 435 *Matt Caswell* 436 437 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 438 on MacOS 10.11 439 440 *Richard Levitte* 441 442 * Fixed the linux-mips64 Configure target which was missing the 443 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 444 platform. 445 446 *Adam Joseph* 447 448 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 449 ticket 450 451 *Matt Caswell* 452 453 * Correctly handle a retransmitted ClientHello in DTLS 454 455 *Matt Caswell* 456 457 * Fixed detection of ktls support in cross-compile environment on Linux 458 459 *Tomas Mraz* 460 461 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 462 against 3.0.x 463 464 *Paul Dale* 465 466 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 467 report correct results in some cases 468 469 *Matt Caswell* 470 471 * Fix UWP builds by defining VirtualLock 472 473 *Charles Milette* 474 475 * For known safe primes use the minimum key length according to RFC 7919. 476 Longer private key sizes unnecessarily raise the cycles needed to compute the 477 shared secret without any increase of the real security. This fixes a 478 regression from 1.1.1 where these shorter keys were generated for the known 479 safe primes. 480 481 *Tomas Mraz* 482 483 * Added the loongarch64 target 484 485 *Shi Pujin* 486 487 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 488 only passed to the FIPS provider and not to the default or legacy provider. 489 490 *Juergen Christ* 491 492 * Fixed reported performance degradation on aarch64. Restored the 493 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 494 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 495 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 496 The new algorithm is still used for 32 bit targets. 497 498 *Bernd Edlinger* 499 500 * Added a missing header for memcmp that caused compilation failure on some 501 platforms 502 503 *Gregor Jasny* 504 505### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 506 507 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 508 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 509 This issue makes the RSA implementation with 2048 bit private keys 510 incorrect on such machines and memory corruption will happen during 511 the computation. As a consequence of the memory corruption an attacker 512 may be able to trigger a remote code execution on the machine performing 513 the computation. 514 515 SSL/TLS servers or other servers using 2048 bit RSA private keys running 516 on machines supporting AVX512IFMA instructions of the X86_64 architecture 517 are affected by this issue. 518 ([CVE-2022-2274]) 519 520 *Xi Ruoyao* 521 522 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 523 implementation would not encrypt the entirety of the data under some 524 circumstances. This could reveal sixteen bytes of data that was 525 preexisting in the memory that wasn't written. In the special case of 526 "in place" encryption, sixteen bytes of the plaintext would be revealed. 527 528 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 529 they are both unaffected. 530 ([CVE-2022-2097]) 531 532 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 533 534### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 535 536 * In addition to the c_rehash shell command injection identified in 537 CVE-2022-1292, further bugs where the c_rehash script does not 538 properly sanitise shell metacharacters to prevent command injection have been 539 fixed. 540 541 When the CVE-2022-1292 was fixed it was not discovered that there 542 are other places in the script where the file names of certificates 543 being hashed were possibly passed to a command executed through the shell. 544 545 This script is distributed by some operating systems in a manner where 546 it is automatically executed. On such operating systems, an attacker 547 could execute arbitrary commands with the privileges of the script. 548 549 Use of the c_rehash script is considered obsolete and should be replaced 550 by the OpenSSL rehash command line tool. 551 (CVE-2022-2068) 552 553 *Daniel Fiala, Tomáš Mráz* 554 555 * Case insensitive string comparison no longer uses locales. It has instead 556 been directly implemented. 557 558 *Paul Dale* 559 560### Changes between 3.0.2 and 3.0.3 [3 May 2022] 561 562 * Case insensitive string comparison is reimplemented via new locale-agnostic 563 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 564 comparison. The previous implementation had problems when the Turkish locale 565 was used. 566 567 *Dmitry Belyavskiy* 568 569 * Fixed a bug in the c_rehash script which was not properly sanitising shell 570 metacharacters to prevent command injection. This script is distributed by 571 some operating systems in a manner where it is automatically executed. On 572 such operating systems, an attacker could execute arbitrary commands with the 573 privileges of the script. 574 575 Use of the c_rehash script is considered obsolete and should be replaced 576 by the OpenSSL rehash command line tool. 577 (CVE-2022-1292) 578 579 *Tomáš Mráz* 580 581 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 582 certificate on an OCSP response. The bug caused the function in the case 583 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 584 response (meaning a successful verification) even in the case where the 585 response signing certificate fails to verify. 586 587 It is anticipated that most users of `OCSP_basic_verify` will not use the 588 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 589 a negative value (indicating a fatal error) in the case of a certificate 590 verification failure. The normal expected return value in this case would be 591 0. 592 593 This issue also impacts the command line OpenSSL "ocsp" application. When 594 verifying an ocsp response with the "-no_cert_checks" option the command line 595 application will report that the verification is successful even though it 596 has in fact failed. In this case the incorrect successful response will also 597 be accompanied by error messages showing the failure and contradicting the 598 apparently successful result. 599 ([CVE-2022-1343]) 600 601 *Matt Caswell* 602 603 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 604 AAD data as the MAC key. This made the MAC key trivially predictable. 605 606 An attacker could exploit this issue by performing a man-in-the-middle attack 607 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 608 that the modified data would still pass the MAC integrity check. 609 610 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 611 endpoint will always be rejected by the recipient and the connection will 612 fail at that point. Many application protocols require data to be sent from 613 the client to the server first. Therefore, in such a case, only an OpenSSL 614 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 615 616 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 617 sent in both directions. In this case both clients and servers could be 618 affected, regardless of the application protocol. 619 620 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 621 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 622 the handshake when using this ciphersuite. 623 624 The confidentiality of data is not impacted by this issue, i.e. an attacker 625 cannot decrypt data that has been encrypted using this ciphersuite - they can 626 only modify it. 627 628 In order for this attack to work both endpoints must legitimately negotiate 629 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 630 OpenSSL 3.0, and is not available within the default provider or the default 631 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 632 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 633 following must have occurred: 634 635 1) OpenSSL must have been compiled with the (non-default) compile time option 636 enable-weak-ssl-ciphers 637 638 2) OpenSSL must have had the legacy provider explicitly loaded (either 639 through application code or via configuration) 640 641 3) The ciphersuite must have been explicitly added to the ciphersuite list 642 643 4) The libssl security level must have been set to 0 (default is 1) 644 645 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 646 647 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 648 others that both endpoints have in common 649 (CVE-2022-1434) 650 651 *Matt Caswell* 652 653 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 654 occuppied by the removed hash table entries. 655 656 This function is used when decoding certificates or keys. If a long lived 657 process periodically decodes certificates or keys its memory usage will 658 expand without bounds and the process might be terminated by the operating 659 system causing a denial of service. Also traversing the empty hash table 660 entries will take increasingly more time. 661 662 Typically such long lived processes might be TLS clients or TLS servers 663 configured to accept client certificate authentication. 664 (CVE-2022-1473) 665 666 *Hugo Landau, Aliaksei Levin* 667 668 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 669 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 670 statistics are no longer supported. For compatibility, these statistics are 671 still listed in the output but are now always reported as zero. 672 673 *Hugo Landau* 674 675### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 676 677 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 678 for non-prime moduli. 679 680 Internally this function is used when parsing certificates that contain 681 elliptic curve public keys in compressed form or explicit elliptic curve 682 parameters with a base point encoded in compressed form. 683 684 It is possible to trigger the infinite loop by crafting a certificate that 685 has invalid explicit curve parameters. 686 687 Since certificate parsing happens prior to verification of the certificate 688 signature, any process that parses an externally supplied certificate may thus 689 be subject to a denial of service attack. The infinite loop can also be 690 reached when parsing crafted private keys as they can contain explicit 691 elliptic curve parameters. 692 693 Thus vulnerable situations include: 694 695 - TLS clients consuming server certificates 696 - TLS servers consuming client certificates 697 - Hosting providers taking certificates or private keys from customers 698 - Certificate authorities parsing certification requests from subscribers 699 - Anything else which parses ASN.1 elliptic curve parameters 700 701 Also any other applications that use the BN_mod_sqrt() where the attacker 702 can control the parameter values are vulnerable to this DoS issue. 703 ([CVE-2022-0778]) 704 705 *Tomáš Mráz* 706 707 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 708 to the list of ciphersuites providing Perfect Forward Secrecy as 709 required by SECLEVEL >= 3. 710 711 *Dmitry Belyavskiy, Nicola Tuveri* 712 713 * Made the AES constant time code for no-asm configurations 714 optional due to the resulting 95% performance degradation. 715 The AES constant time code can be enabled, for no assembly 716 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 717 718 *Paul Dale* 719 720 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 721 passphrase strings. 722 723 *Darshan Sen* 724 725 * The negative return value handling of the certificate verification callback 726 was reverted. The replacement is to set the verification retry state with 727 the SSL_set_retry_verify() function. 728 729 *Tomáš Mráz* 730 731### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 732 733 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 734 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 735 verify a certificate supplied by a server. That function may return a 736 negative return value to indicate an internal error (for example out of 737 memory). Such a negative return value is mishandled by OpenSSL and will cause 738 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 739 success and a subsequent call to SSL_get_error() to return the value 740 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 741 returned by OpenSSL if the application has previously called 742 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 743 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 744 totally unexpected and applications may not behave correctly as a result. The 745 exact behaviour will depend on the application but it could result in 746 crashes, infinite loops or other similar incorrect responses. 747 748 This issue is made more serious in combination with a separate bug in OpenSSL 749 3.0 that will cause X509_verify_cert() to indicate an internal error when 750 processing a certificate chain. This will occur where a certificate does not 751 include the Subject Alternative Name extension but where a Certificate 752 Authority has enforced name constraints. This issue can occur even with valid 753 chains. 754 ([CVE-2021-4044]) 755 756 *Matt Caswell* 757 758 * Corrected a few file name and file reference bugs in the build, 759 installation and setup scripts, which lead to installation verification 760 failures. Slightly enhanced the installation verification script. 761 762 *Richard Levitte* 763 764 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 765 keys. 766 767 *Richard Levitte* 768 769 * Fixed PVK encoder to properly query for the passphrase. 770 771 *Tomáš Mráz* 772 773 * Multiple fixes in the OSSL_HTTP API functions. 774 775 *David von Oheimb* 776 777 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 778 OSSL_PARAM_INTEGER data type and return error on negative numbers 779 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 780 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 781 782 *Richard Levitte* 783 784 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 785 786 *Tomáš Mráz* 787 788 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 789 790 *Allan Jude* 791 792 * Multiple threading fixes. 793 794 *Matt Caswell* 795 796 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 797 798 *Tomáš Mráz* 799 800 * Allow fetching an operation from the provider that owns an unexportable key 801 as a fallback if that is still allowed by the property query. 802 803 *Richard Levitte* 804 805### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 806 807 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 808 deprecated. 809 810 *Matt Caswell* 811 812 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 813 S390X capability vector to zero. This simplifies testing of different code 814 paths on S390X architecture. 815 816 *Patrick Steuer* 817 818 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 819 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 820 SP 800-38D". The communication will fail at this point. 821 822 *Paul Dale* 823 824 * The EC_GROUP_clear_free() function is deprecated as there is nothing 825 confidential in EC_GROUP data. 826 827 *Nicola Tuveri* 828 829 * The byte order mark (BOM) character is ignored if encountered at the 830 beginning of a PEM-formatted file. 831 832 *Dmitry Belyavskiy* 833 834 * Added CMS support for the Russian GOST algorithms. 835 836 *Dmitry Belyavskiy* 837 838 * Due to move of the implementation of cryptographic operations 839 to the providers, validation of various operation parameters can 840 be postponed until the actual operation is executed where previously 841 it happened immediately when an operation parameter was set. 842 843 For example when setting an unsupported curve with 844 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 845 fail but later keygen operations with the EVP_PKEY_CTX will fail. 846 847 *OpenSSL team members and many third party contributors* 848 849 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 850 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 851 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 852 instead to retrieve these algorithms from a provider. 853 854 *Shane Lontis* 855 856 * On build targets where the multilib postfix is set in the build 857 configuration the libdir directory was changing based on whether 858 the lib directory with the multilib postfix exists on the system 859 or not. This unpredictable behavior was removed and eventual 860 multilib postfix is now always added to the default libdir. Use 861 `--libdir=lib` to override the libdir if adding the postfix is 862 undesirable. 863 864 *Jan Lána* 865 866 * The triple DES key wrap functionality now conforms to RFC 3217 but is 867 no longer interoperable with OpenSSL 1.1.1. 868 869 *Paul Dale* 870 871 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 872 function codes, this function can only cause problems for calling 873 applications. 874 875 *Paul Dale* 876 877 * Add a configurable flag to output date formats as ISO 8601. Does not 878 change the default date format. 879 880 *William Edmisten* 881 882 * Version of MSVC earlier than 1300 could get link warnings, which could 883 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 884 Support for this flag has been removed. 885 886 *Rich Salz* 887 888 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 889 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 890 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 891 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 892 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 893 894 *Rich Salz* 895 896 * The signatures of the functions to get and set options on SSL and 897 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 898 Some source code changes may be required. 899 900 *Rich Salz* 901 902 * The public definitions of conf_method_st and conf_st have been 903 deprecated. They will be made opaque in a future release. 904 905 *Rich Salz and Tomáš Mráz* 906 907 * Client-initiated renegotiation is disabled by default. To allow it, use 908 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 909 flag, or the "ClientRenegotiation" config parameter as appropriate. 910 911 *Rich Salz* 912 913 * Add "abspath" and "includedir" pragma's to config files, to prevent, 914 or modify relative pathname inclusion. 915 916 *Rich Salz* 917 918 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 919 validated. Please consult the README-FIPS and 920 README-PROVIDERS files, as well as the migration guide. 921 922 *OpenSSL team members and many third party contributors* 923 924 * For the key types DH and DHX the allowed settable parameters are now different. 925 926 *Shane Lontis* 927 928 * The openssl commands that read keys, certificates, and CRLs now 929 automatically detect the PEM or DER format of the input files. 930 931 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 932 933 * Added enhanced PKCS#12 APIs which accept a library context. 934 935 *Jon Spillett* 936 937 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 938 939 *Matt Caswell* 940 941 * Added support for Kernel TLS (KTLS). 942 943 *Boris Pismenny, John Baldwin and Andrew Gallatin* 944 945 * Support for RFC 5746 secure renegotiation is now required by default for 946 SSL or TLS connections to succeed. 947 948 *Benjamin Kaduk* 949 950 * The signature of the `copy` functional parameter of the 951 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 952 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 953 the signature of the `pub_decode` functional parameter of the 954 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 955 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 956 957 *David von Oheimb* 958 959 * The error return values from some control calls (ctrl) have changed. 960 961 *Paul Dale* 962 963 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 964 965 *Shane Lontis* 966 967 * Many functions in the EVP_ namespace that are getters of values from 968 implementations or contexts were renamed to include get or get0 in their 969 names. Old names are provided as macro aliases for compatibility and 970 are not deprecated. 971 972 *Tomáš Mráz* 973 974 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 975 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 976 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 977 are deprecated. 978 979 *Tomáš Mráz* 980 981 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 982 more key types. 983 984 * The output from the command line applications may have minor 985 changes. 986 987 *Paul Dale* 988 989 * The output from numerous "printing" may have minor changes. 990 991 *David von Oheimb* 992 993 * Windows thread synchronization uses read/write primitives (SRWLock) when 994 supported by the OS, otherwise CriticalSection continues to be used. 995 996 *Vincent Drake* 997 998 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 999 work on read only BIO source/sinks that do not support these functions. 1000 This allows piping or redirection of a file BIO using stdin to be buffered 1001 into memory. This is used internally in OSSL_DECODER_from_bio(). 1002 1003 *Shane Lontis* 1004 1005 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 1006 this function would return one of the values OSSL_STORE_INFO_NAME, 1007 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 1008 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 1009 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 1010 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 1011 using this function should be amended to handle the changed return value. 1012 1013 *Richard Levitte* 1014 1015 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 1016 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 1017 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 1018 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 1019 contains more than one certificate identifier: This means that all 1020 certificates referenced there MUST be part of the validation chain. 1021 1022 *David von Oheimb* 1023 1024 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 1025 RC5, DESX and DES have been moved to the legacy provider. 1026 1027 *Matt Caswell* 1028 1029 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 1030 RIPEMD-160 have been moved to the legacy provider. 1031 1032 *Matt Caswell* 1033 1034 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 1035 provided key. 1036 1037 *Dmitry Belyavskiy* 1038 1039 * The deprecated functions EVP_PKEY_get0_RSA(), 1040 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 1041 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 1042 well as the similarly named "get1" functions behave differently in 1043 OpenSSL 3.0. 1044 1045 *Matt Caswell* 1046 1047 * A number of functions handling low-level keys or engines were deprecated 1048 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 1049 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 1050 EVP_PKEY_get0_siphash(). 1051 1052 *Matt Caswell* 1053 1054 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 1055 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 1056 will need to load the legacy crypto provider. This includes these PBE 1057 algorithms which use this KDF: 1058 - NID_pbeWithMD2AndDES_CBC 1059 - NID_pbeWithMD5AndDES_CBC 1060 - NID_pbeWithSHA1AndRC2_CBC 1061 - NID_pbeWithMD2AndRC2_CBC 1062 - NID_pbeWithMD5AndRC2_CBC 1063 - NID_pbeWithSHA1AndDES_CBC 1064 1065 *Jon Spillett* 1066 1067 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 1068 BIO_debug_callback() functions. 1069 1070 *Tomáš Mráz* 1071 1072 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 1073 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 1074 1075 *Tomáš Mráz* 1076 1077 * The RAND_METHOD APIs have been deprecated. 1078 1079 *Paul Dale* 1080 1081 * The SRP APIs have been deprecated. 1082 1083 *Matt Caswell* 1084 1085 * Add a compile time option to prevent the caching of provider fetched 1086 algorithms. This is enabled by including the no-cached-fetch option 1087 at configuration time. 1088 1089 *Paul Dale* 1090 1091 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 1092 count of PKCS12_DEFAULT_ITER. 1093 1094 *Tomáš Mráz and Sahana Prasad* 1095 1096 * The openssl speed command does not use low-level API calls anymore. 1097 1098 *Tomáš Mráz* 1099 1100 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 1101 capable processors. 1102 1103 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 1104 1105 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 1106 1107 *Matt Caswell* 1108 1109 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 1110 providers may supply their own group implementations (using either the "key 1111 exchange" or the "key encapsulation" methods) which will automatically be 1112 detected and used by libssl. 1113 1114 *Matt Caswell, Nicola Tuveri* 1115 1116 * The undocumented function X509_certificate_type() has been deprecated; 1117 1118 *Rich Salz* 1119 1120 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 1121 1122 *Tomáš Mráz* 1123 1124 * Removed RSA padding mode for SSLv23 (which was only used for 1125 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 1126 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 1127 `rsautl` command. 1128 1129 *Rich Salz* 1130 1131 * Deprecated the obsolete X9.31 RSA key generation related functions. 1132 1133 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 1134 is not allowed to return a value > 1, this is no more taken as failure. 1135 1136 *Viktor Dukhovni and David von Oheimb* 1137 1138 * Deprecated the obsolete X9.31 RSA key generation related functions 1139 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 1140 BN_X931_generate_prime_ex(). 1141 1142 *Tomáš Mráz* 1143 1144 * The default key generation method for the regular 2-prime RSA keys was 1145 changed to the FIPS 186-4 B.3.6 method. 1146 1147 *Shane Lontis* 1148 1149 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 1150 1151 *Kurt Roeckx* 1152 1153 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1154 1155 *Rich Salz* 1156 1157 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1158 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1159 1160 *Rich Salz, Richard Levitte, and David von Oheimb* 1161 1162 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1163 1164 *David von Oheimb* 1165 1166 * Deprecated `OCSP_parse_url()`. 1167 1168 *David von Oheimb* 1169 1170 * Validation of SM2 keys has been separated from the validation of regular EC 1171 keys. 1172 1173 *Nicola Tuveri* 1174 1175 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1176 switches: a validation failure triggers an early exit, returning a failure 1177 exit status to the parent process. 1178 1179 *Nicola Tuveri* 1180 1181 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1182 to ignore unknown ciphers. 1183 1184 *Otto Hollmann* 1185 1186 * The `-cipher-commands` and `-digest-commands` options 1187 of the command line utility `list` have been deprecated. 1188 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1189 1190 *Dmitry Belyavskiy* 1191 1192 * Added convenience functions for generating asymmetric key pairs: 1193 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1194 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1195 1196 *David von Oheimb* 1197 1198 * All of the low level EC_KEY functions have been deprecated. 1199 1200 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1201 1202 * Deprecated all the libcrypto and libssl error string loading 1203 functions. 1204 1205 *Richard Levitte* 1206 1207 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1208 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1209 deprecated. 1210 1211 *Matt Caswell* 1212 1213 * The `-crypt` option to the `passwd` command line tool has been removed. 1214 1215 *Paul Dale* 1216 1217 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1218 were removed. 1219 1220 *Rich Salz* 1221 1222 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1223 1224 *Shane Lontis* 1225 1226 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1227 EVP_PKEY_get1_tls_encodedpoint(). 1228 1229 *Matt Caswell* 1230 1231 * The security callback, which can be customised by application code, supports 1232 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1233 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1234 1235 *Matt Caswell* 1236 1237 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1238 interface. Their functionality remains unchanged. 1239 1240 *Jordan Montgomery* 1241 1242 * Added new option for 'openssl list', '-providers', which will display the 1243 list of loaded providers, their names, version and status. It optionally 1244 displays their gettable parameters. 1245 1246 *Paul Dale* 1247 1248 * Removed EVP_PKEY_set_alias_type(). 1249 1250 *Richard Levitte* 1251 1252 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1253 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1254 1255 *Jeremy Walch* 1256 1257 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1258 parameters are still checked for type safety at compile time via helper 1259 inline functions. 1260 1261 *Matt Caswell* 1262 1263 * Remove the RAND_DRBG API 1264 1265 *Paul Dale and Matthias St. Pierre* 1266 1267 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1268 as well as actual hostnames. 1269 1270 *David Woodhouse* 1271 1272 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1273 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1274 conversely, silently ignore DTLS protocol version bounds when configuring 1275 TLS-based contexts. The commands can be repeated to set bounds of both 1276 types. The same applies with the corresponding "min_protocol" and 1277 "max_protocol" command-line switches, in case some application uses both TLS 1278 and DTLS. 1279 1280 SSL_CTX instances that are created for a fixed protocol version (e.g. 1281 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1282 attempts to apply bounds to these protocol versions would result in an 1283 error. Now only the "version-flexible" SSL_CTX instances are subject to 1284 limits in configuration files in command-line options. 1285 1286 *Viktor Dukhovni* 1287 1288 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1289 going forward. 1290 1291 *Paul Dale* 1292 1293 * Reworked the recorded ERR codes to make better space for system errors. 1294 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1295 given code is a system error (true) or an OpenSSL error (false). 1296 1297 *Richard Levitte* 1298 1299 * Reworked the test perl framework to better allow parallel testing. 1300 1301 *Nicola Tuveri and David von Oheimb* 1302 1303 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1304 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1305 1306 *Shane Lontis* 1307 1308 * 'Configure' has been changed to figure out the configuration target if 1309 none is given on the command line. Consequently, the 'config' script is 1310 now only a mere wrapper. All documentation is changed to only mention 1311 'Configure'. 1312 1313 *Rich Salz and Richard Levitte* 1314 1315 * Added a library context `OSSL_LIB_CTX` that applications as well as 1316 other libraries can use to form a separate context within which 1317 libcrypto operations are performed. 1318 1319 *Richard Levitte* 1320 1321 * Added various `_ex` functions to the OpenSSL API that support using 1322 a non-default `OSSL_LIB_CTX`. 1323 1324 *OpenSSL team* 1325 1326 * Handshake now fails if Extended Master Secret extension is dropped 1327 on renegotiation. 1328 1329 *Tomáš Mráz* 1330 1331 * Dropped interactive mode from the `openssl` program. 1332 1333 *Richard Levitte* 1334 1335 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1336 1337 *David von Oheimb and Shane Lontis* 1338 1339 * Deprecated `EC_METHOD_get_field_type()`. 1340 1341 *Billy Bob Brumley* 1342 1343 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1344 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1345 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1346 1347 *Billy Bob Brumley* 1348 1349 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1350 1351 *Billy Bob Brumley* 1352 1353 * Add CAdES-BES signature verification support, mostly derived 1354 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1355 1356 *Filipe Raimundo da Silva* 1357 1358 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1359 1360 *Antonio Iacono* 1361 1362 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1363 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1364 1365 *Jakub Zelenka* 1366 1367 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1368 1369 *Billy Bob Brumley* 1370 1371 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1372 EC_KEY_precompute_mult(). 1373 1374 *Billy Bob Brumley* 1375 1376 * Deprecated EC_POINTs_mul(). 1377 1378 *Billy Bob Brumley* 1379 1380 * Removed FIPS_mode() and FIPS_mode_set(). 1381 1382 *Shane Lontis* 1383 1384 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1385 1386 *Dmitry Belyavskiy* 1387 1388 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1389 EC_POINT_get_Jprojective_coordinates_GFp(). 1390 1391 *Billy Bob Brumley* 1392 1393 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1394 arrays to be more easily constructed via a series of utility functions. 1395 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1396 the various push functions and finally convert to a passable OSSL_PARAM 1397 array using OSSL_PARAM_BLD_to_param(). 1398 1399 *Paul Dale* 1400 1401 * The security strength of SHA1 and MD5 based signatures in TLS has been 1402 reduced. 1403 1404 *Kurt Roeckx* 1405 1406 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1407 contain a provider side internal key. 1408 1409 *Richard Levitte* 1410 1411 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1412 1413 *Richard Levitte* 1414 1415 * Project text documents not yet having a proper file name extension 1416 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1417 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1418 1419 *David von Oheimb* 1420 1421 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1422 have been converted to Markdown with the goal to produce documents 1423 which not only look pretty when viewed online in the browser, but 1424 remain well readable inside a plain text editor. 1425 1426 To achieve this goal, a 'minimalistic' Markdown style has been applied 1427 which avoids formatting elements that interfere too much with the 1428 reading flow in the text file. For example, it 1429 1430 * avoids [ATX headings][] and uses [setext headings][] instead 1431 (which works for `<h1>` and `<h2>` headings only). 1432 * avoids [inline links][] and uses [reference links][] instead. 1433 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1434 1435 [ATX headings]: https://github.github.com/gfm/#atx-headings 1436 [setext headings]: https://github.github.com/gfm/#setext-headings 1437 [inline links]: https://github.github.com/gfm/#inline-link 1438 [reference links]: https://github.github.com/gfm/#reference-link 1439 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1440 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1441 1442 *Matthias St. Pierre* 1443 1444 * The test suite is changed to preserve results of each test recipe. 1445 A new directory test-runs/ with subdirectories named like the 1446 test recipes are created in the build tree for this purpose. 1447 1448 *Richard Levitte* 1449 1450 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1451 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1452 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1453 1454 *David von Oheimb, Martin Peylo* 1455 1456 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1457 It supports arbitrary request and response content types, GET redirection, 1458 TLS, connections via HTTP(S) proxies, connections and exchange via 1459 user-defined BIOs (allowing implicit connections), persistent connections, 1460 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1461 The legacy OCSP-focused (and only partly documented) API 1462 is retained for backward compatibility, while most of it is deprecated. 1463 1464 *David von Oheimb* 1465 1466 * Added `util/check-format.pl`, a tool for checking adherence to the 1467 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1468 The checks performed are incomplete and yield some false positives. 1469 Still the tool should be useful for detecting most typical glitches. 1470 1471 *David von Oheimb* 1472 1473 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1474 If domain name resolution yields multiple IP addresses all of them are tried 1475 after `connect()` failures. 1476 1477 *David von Oheimb* 1478 1479 * All of the low level RSA functions have been deprecated. 1480 1481 *Paul Dale* 1482 1483 * X509 certificates signed using SHA1 are no longer allowed at security 1484 level 1 and above. 1485 1486 *Kurt Roeckx* 1487 1488 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1489 modified to use PKEY APIs. These commands are now in maintenance mode 1490 and no new features will be added to them. 1491 1492 *Paul Dale* 1493 1494 * The command line utility rsautl has been deprecated. 1495 1496 *Paul Dale* 1497 1498 * The command line utilities genrsa and rsa have been modified to use PKEY 1499 APIs. They now write PKCS#8 keys by default. These commands are now in 1500 maintenance mode and no new features will be added to them. 1501 1502 *Paul Dale* 1503 1504 * All of the low level DH functions have been deprecated. 1505 1506 *Paul Dale and Matt Caswell* 1507 1508 * All of the low level DSA functions have been deprecated. 1509 1510 *Paul Dale* 1511 1512 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1513 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1514 1515 *Richard Levitte* 1516 1517 * Deprecated low level ECDH and ECDSA functions. 1518 1519 *Paul Dale* 1520 1521 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1522 1523 *Richard Levitte* 1524 1525 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1526 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1527 a new formulation to include all the things it can be used for, 1528 as well as words of caution. 1529 1530 *Richard Levitte* 1531 1532 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1533 1534 *Paul Dale* 1535 1536 * All of the low level HMAC functions have been deprecated. 1537 1538 *Paul Dale and David von Oheimb* 1539 1540 * Over two thousand fixes were made to the documentation, including: 1541 - Common options (such as -rand/-writerand, TLS version control, etc) 1542 were refactored and point to newly-enhanced descriptions in openssl.pod. 1543 - Added style conformance for all options (with help from Richard Levitte), 1544 documented all reported missing options, added a CI build to check 1545 that all options are documented and that no unimplemented options 1546 are documented. 1547 - Documented some internals, such as all use of environment variables. 1548 - Addressed all internal broken L<> references. 1549 1550 *Rich Salz* 1551 1552 * All of the low level CMAC functions have been deprecated. 1553 1554 *Paul Dale* 1555 1556 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1557 functions have been deprecated. 1558 1559 *Paul Dale and David von Oheimb* 1560 1561 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1562 set of functions. The documentation mentioned negative values for some 1563 errors, but this was never the case, so the mention of negative values 1564 was removed. 1565 1566 Code that followed the documentation and thereby check with something 1567 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1568 1569 *Richard Levitte* 1570 1571 * All of the low level cipher functions have been deprecated. 1572 1573 *Matt Caswell and Paul Dale* 1574 1575 * Removed include/openssl/opensslconf.h.in and replaced it with 1576 include/openssl/configuration.h.in, which differs in not including 1577 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1578 was added to include both. 1579 1580 This allows internal hacks where one might need to modify the set 1581 of configured macros, for example this if deprecated symbols are 1582 still supposed to be available internally: 1583 1584 #include <openssl/configuration.h> 1585 1586 #undef OPENSSL_NO_DEPRECATED 1587 #define OPENSSL_SUPPRESS_DEPRECATED 1588 1589 #include <openssl/macros.h> 1590 1591 This should not be used by applications that use the exported 1592 symbols, as that will lead to linking errors. 1593 1594 *Richard Levitte* 1595 1596 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1597 used in exponentiation with 512-bit moduli. No EC algorithms are 1598 affected. Analysis suggests that attacks against 2-prime RSA1024, 1599 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1600 difficult to perform and are not believed likely. Attacks against DH512 1601 are considered just feasible. However, for an attack the target would 1602 have to re-use the DH512 private key, which is not recommended anyway. 1603 Also applications directly using the low-level API BN_mod_exp may be 1604 affected if they use BN_FLG_CONSTTIME. 1605 ([CVE-2019-1551]) 1606 1607 *Andy Polyakov* 1608 1609 * Most memory-debug features have been deprecated, and the functionality 1610 replaced with no-ops. 1611 1612 *Rich Salz* 1613 1614 * Added documentation for the STACK API. 1615 1616 *Rich Salz* 1617 1618 * Introduced a new method type and API, OSSL_ENCODER, to represent 1619 generic encoders. These do the same sort of job that PEM writers 1620 and d2i functions do, but with support for methods supplied by 1621 providers, and the possibility for providers to support other 1622 formats as well. 1623 1624 *Richard Levitte* 1625 1626 * Introduced a new method type and API, OSSL_DECODER, to represent 1627 generic decoders. These do the same sort of job that PEM readers 1628 and i2d functions do, but with support for methods supplied by 1629 providers, and the possibility for providers to support other 1630 formats as well. 1631 1632 *Richard Levitte* 1633 1634 * Added a .pragma directive to the syntax of configuration files, to 1635 allow varying behavior in a supported and predictable manner. 1636 Currently added pragma: 1637 1638 .pragma dollarid:on 1639 1640 This allows dollar signs to be a keyword character unless it's 1641 followed by a opening brace or parenthesis. This is useful for 1642 platforms where dollar signs are commonly used in names, such as 1643 volume names and system directory names on VMS. 1644 1645 *Richard Levitte* 1646 1647 * Added functionality to create an EVP_PKEY from user data. 1648 1649 *Richard Levitte* 1650 1651 * Change the interpretation of the '--api' configuration option to 1652 mean that this is a desired API compatibility level with no 1653 further meaning. The previous interpretation, that this would 1654 also mean to remove all deprecated symbols up to and including 1655 the given version, no requires that 'no-deprecated' is also used 1656 in the configuration. 1657 1658 When building applications, the desired API compatibility level 1659 can be set with the OPENSSL_API_COMPAT macro like before. For 1660 API compatibility version below 3.0, the old style numerical 1661 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1662 For version 3.0 and on, the value is expected to be the decimal 1663 value calculated from the major and minor version like this: 1664 1665 MAJOR * 10000 + MINOR * 100 1666 1667 Examples: 1668 1669 -DOPENSSL_API_COMPAT=30000 For 3.0 1670 -DOPENSSL_API_COMPAT=30200 For 3.2 1671 1672 To hide declarations that are deprecated up to and including the 1673 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1674 given when building the application as well. 1675 1676 *Richard Levitte* 1677 1678 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1679 access to certificate and CRL stores via URIs and OSSL_STORE 1680 loaders. 1681 1682 This adds the following functions: 1683 1684 - X509_LOOKUP_store() 1685 - X509_STORE_load_file() 1686 - X509_STORE_load_path() 1687 - X509_STORE_load_store() 1688 - SSL_add_store_cert_subjects_to_stack() 1689 - SSL_CTX_set_default_verify_store() 1690 - SSL_CTX_load_verify_file() 1691 - SSL_CTX_load_verify_dir() 1692 - SSL_CTX_load_verify_store() 1693 1694 *Richard Levitte* 1695 1696 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1697 The presence of this system service is determined at run-time. 1698 1699 *Richard Levitte* 1700 1701 * Added functionality to create an EVP_PKEY context based on data 1702 for methods from providers. This takes an algorithm name and a 1703 property query string and simply stores them, with the intent 1704 that any operation that uses this context will use those strings 1705 to fetch the needed methods implicitly, thereby making the port 1706 of application written for pre-3.0 OpenSSL easier. 1707 1708 *Richard Levitte* 1709 1710 * The undocumented function NCONF_WIN32() has been deprecated; for 1711 conversion details see the HISTORY section of doc/man5/config.pod 1712 1713 *Rich Salz* 1714 1715 * Introduced the new functions EVP_DigestSignInit_ex() and 1716 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1717 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1718 pages for further details. 1719 1720 *Matt Caswell* 1721 1722 * Over two thousand fixes were made to the documentation, including: 1723 adding missing command flags, better style conformance, documentation 1724 of internals, etc. 1725 1726 *Rich Salz, Richard Levitte* 1727 1728 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1729 X25519, X448, Ed25519 and Ed448. 1730 1731 *Patrick Steuer* 1732 1733 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1734 the first value. 1735 1736 *Jon Spillett* 1737 1738 * Deprecated the public definition of `ERR_STATE` as well as the function 1739 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1740 opaque type. 1741 1742 *Richard Levitte* 1743 1744 * Added ERR functionality to give callers access to the stored function 1745 names that have replaced the older function code based functions. 1746 1747 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1748 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1749 ERR_peek_error_all() and ERR_peek_last_error_all(). 1750 1751 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1752 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1753 ERR_func_error_string(). 1754 1755 *Richard Levitte* 1756 1757 * Extended testing to be verbose for failing tests only. The make variables 1758 VERBOSE_FAILURE or VF can be used to enable this: 1759 1760 $ make VF=1 test # Unix 1761 $ mms /macro=(VF=1) test ! OpenVMS 1762 $ nmake VF=1 test # Windows 1763 1764 *Richard Levitte* 1765 1766 * Added the `-copy_extensions` option to the `x509` command for use with 1767 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1768 all extensions in the request are copied to the certificate or vice versa. 1769 1770 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1771 1772 * Added the `-copy_extensions` option to the `req` command for use with 1773 `-x509`. When given with the `copy` or `copyall` argument, 1774 all extensions in the certification request are copied to the certificate. 1775 1776 *David von Oheimb* 1777 1778 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 1779 they generate are by default RFC 5280 compliant in the following sense: 1780 There is a subjectKeyIdentifier extension with a hash value of the public key 1781 and for not self-signed certs there is an authorityKeyIdentifier extension 1782 with a keyIdentifier field or issuer information identifying the signing key. 1783 This is done unless some configuration overrides the new default behavior, 1784 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 1785 1786 *David von Oheimb* 1787 1788 * Added several checks to `X509_verify_cert()` according to requirements in 1789 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 1790 (which may be done by using the CLI option `-x509_strict`): 1791 * The basicConstraints of CA certificates must be marked critical. 1792 * CA certificates must explicitly include the keyUsage extension. 1793 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 1794 * The issuer name of any certificate must not be empty. 1795 * The subject name of CA certs, certs with keyUsage crlSign, 1796 and certs without subjectAlternativeName must not be empty. 1797 * If a subjectAlternativeName extension is given it must not be empty. 1798 * The signatureAlgorithm field and the cert signature must be consistent. 1799 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 1800 must not be marked critical. 1801 * The authorityKeyIdentifier must be given for X.509v3 certs 1802 unless they are self-signed. 1803 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 1804 1805 *David von Oheimb* 1806 1807 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 1808 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 1809 1810 *Tomáš Mráz* 1811 1812 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 1813 used even when parsing explicit parameters, when loading a encoded key 1814 or calling `EC_GROUP_new_from_ecpkparameters()`/ 1815 `EC_GROUP_new_from_ecparameters()`. 1816 This prevents bypass of security hardening and performance gains, 1817 especially for curves with specialized EC_METHODs. 1818 By default, if a key encoded with explicit parameters is loaded and later 1819 encoded, the output is still encoded with explicit parameters, even if 1820 internally a "named" EC_GROUP is used for computation. 1821 1822 *Nicola Tuveri* 1823 1824 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 1825 this change, EC_GROUP_set_generator would accept order and/or cofactor as 1826 NULL. After this change, only the cofactor parameter can be NULL. It also 1827 does some minimal sanity checks on the passed order. 1828 ([CVE-2019-1547]) 1829 1830 *Billy Bob Brumley* 1831 1832 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 1833 An attack is simple, if the first CMS_recipientInfo is valid but the 1834 second CMS_recipientInfo is chosen ciphertext. If the second 1835 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 1836 encryption key will be replaced by garbage, and the message cannot be 1837 decoded, but if the RSA decryption fails, the correct encryption key is 1838 used and the recipient will not notice the attack. 1839 As a work around for this potential attack the length of the decrypted 1840 key must be equal to the cipher default key length, in case the 1841 certifiate is not given and all recipientInfo are tried out. 1842 The old behaviour can be re-enabled in the CMS code by setting the 1843 CMS_DEBUG_DECRYPT flag. 1844 1845 *Bernd Edlinger* 1846 1847 * Early start up entropy quality from the DEVRANDOM seed source has been 1848 improved for older Linux systems. The RAND subsystem will wait for 1849 /dev/random to be producing output before seeding from /dev/urandom. 1850 The seeded state is stored for future library initialisations using 1851 a system global shared memory segment. The shared memory identifier 1852 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 1853 the desired value. The default identifier is 114. 1854 1855 *Paul Dale* 1856 1857 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 1858 when primes for RSA keys are computed. 1859 Since we previously always generated primes == 2 (mod 3) for RSA keys, 1860 the 2-prime and 3-prime RSA modules were easy to distinguish, since 1861 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 1862 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 1863 This avoids possible fingerprinting of newly generated RSA modules. 1864 1865 *Bernd Edlinger* 1866 1867 * Correct the extended master secret constant on EBCDIC systems. Without this 1868 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 1869 negotiate EMS will fail. Unfortunately this also means that TLS connections 1870 between EBCDIC systems with this fix, and EBCDIC systems without this 1871 fix will fail if they negotiate EMS. 1872 1873 *Matt Caswell* 1874 1875 * Changed the library initialisation so that the config file is now loaded 1876 by default. This was already the case for libssl. It now occurs for both 1877 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 1878 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 1879 1880 *Matt Caswell* 1881 1882 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 1883 where the former acts as a replacement for `ERR_put_error()`, and the 1884 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 1885 `ERR_raise_data()` adds more flexibility by taking a format string and 1886 an arbitrary number of arguments following it, to be processed with 1887 `BIO_snprintf()`. 1888 1889 *Richard Levitte* 1890 1891 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 1892 to check if a named provider is loaded and available. When called, it 1893 will also activate all fallback providers if such are still present. 1894 1895 *Richard Levitte* 1896 1897 * Enforce a minimum DH modulus size of 512 bits. 1898 1899 *Bernd Edlinger* 1900 1901 * Changed DH parameters to generate the order q subgroup instead of 2q. 1902 Previously generated DH parameters are still accepted by DH_check 1903 but DH_generate_key works around that by clearing bit 0 of the 1904 private key for those. This avoids leaking bit 0 of the private key. 1905 1906 *Bernd Edlinger* 1907 1908 * Significantly reduce secure memory usage by the randomness pools. 1909 1910 *Paul Dale* 1911 1912 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 1913 deprecated. 1914 1915 *Rich Salz* 1916 1917 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 1918 algorithms. An implementation of a key exchange algorithm can be obtained 1919 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 1920 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 1921 the older EVP_PKEY_derive_init() function. See the man pages for the new 1922 functions for further details. 1923 1924 *Matt Caswell* 1925 1926 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 1927 1928 *Matt Caswell* 1929 1930 * Removed the function names from error messages and deprecated the 1931 xxx_F_xxx define's. 1932 1933 *Richard Levitte* 1934 1935 * Removed NextStep support and the macro OPENSSL_UNISTD 1936 1937 *Rich Salz* 1938 1939 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 1940 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 1941 Also removed "export var as function" capability; we do not export 1942 variables, only functions. 1943 1944 *Rich Salz* 1945 1946 * RC5_32_set_key has been changed to return an int type, with 0 indicating 1947 an error and 1 indicating success. In previous versions of OpenSSL this 1948 was a void type. If a key was set longer than the maximum possible this 1949 would crash. 1950 1951 *Matt Caswell* 1952 1953 * Support SM2 signing and verification schemes with X509 certificate. 1954 1955 *Paul Yang* 1956 1957 * Use SHA256 as the default digest for TS query in the `ts` app. 1958 1959 *Tomáš Mráz* 1960 1961 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 1962 1963 *Shane Lontis* 1964 1965 * Default cipher lists/suites are now available via a function, the 1966 #defines are deprecated. 1967 1968 *Todd Short* 1969 1970 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 1971 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 1972 for Windows Store apps easier. Also, the "no-uplink" option has been added. 1973 1974 *Kenji Mouri* 1975 1976 * Join the directories crypto/x509 and crypto/x509v3 1977 1978 *Richard Levitte* 1979 1980 * Added command 'openssl kdf' that uses the EVP_KDF API. 1981 1982 *Shane Lontis* 1983 1984 * Added command 'openssl mac' that uses the EVP_MAC API. 1985 1986 *Shane Lontis* 1987 1988 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 1989 as default directories. Also added the command 'openssl info' 1990 for scripting purposes. 1991 1992 *Richard Levitte* 1993 1994 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 1995 deprecated. 1996 1997 *Matt Caswell* 1998 1999 * Add prediction resistance to the DRBG reseeding process. 2000 2001 *Paul Dale* 2002 2003 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 2004 mandated by IEEE Std 1619-2018. 2005 2006 *Paul Dale* 2007 2008 * Added newline escaping functionality to a filename when using openssl dgst. 2009 This output format is to replicate the output format found in the `*sum` 2010 checksum programs. This aims to preserve backward compatibility. 2011 2012 *Matt Eaton, Richard Levitte, and Paul Dale* 2013 2014 * Removed the heartbeat message in DTLS feature, as it has very 2015 little usage and doesn't seem to fulfill a valuable purpose. 2016 The configuration option is now deprecated. 2017 2018 *Richard Levitte* 2019 2020 * Changed the output of 'openssl {digestname} < file' to display the 2021 digest name in its output. 2022 2023 *Richard Levitte* 2024 2025 * Added a new generic trace API which provides support for enabling 2026 instrumentation through trace output. 2027 2028 *Richard Levitte & Matthias St. Pierre* 2029 2030 * Added build tests for C++. These are generated files that only do one 2031 thing, to include one public OpenSSL head file each. This tests that 2032 the public header files can be usefully included in a C++ application. 2033 2034 This test isn't enabled by default. It can be enabled with the option 2035 'enable-buildtest-c++'. 2036 2037 *Richard Levitte* 2038 2039 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 2040 2041 *Robbie Harwood* 2042 2043 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 2044 2045 *Simo Sorce* 2046 2047 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 2048 2049 *Shane Lontis* 2050 2051 * Added KMAC to EVP_MAC. 2052 2053 *Shane Lontis* 2054 2055 * Added property based algorithm implementation selection framework to 2056 the core. 2057 2058 *Paul Dale* 2059 2060 * Added SCA hardening for modular field inversion in EC_GROUP through 2061 a new dedicated field_inv() pointer in EC_METHOD. 2062 This also addresses a leakage affecting conversions from projective 2063 to affine coordinates. 2064 2065 *Billy Bob Brumley, Nicola Tuveri* 2066 2067 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 2068 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 2069 those algorithms that were already supported through the EVP_PKEY API 2070 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 2071 and scrypt are now wrappers that call EVP_KDF. 2072 2073 *David Makepeace* 2074 2075 * Build devcrypto engine as a dynamic engine. 2076 2077 *Eneas U de Queiroz* 2078 2079 * Add keyed BLAKE2 to EVP_MAC. 2080 2081 *Antoine Salon* 2082 2083 * Fix a bug in the computation of the endpoint-pair shared secret used 2084 by DTLS over SCTP. This breaks interoperability with older versions 2085 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 2086 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 2087 interoperability with such broken implementations. However, enabling 2088 this switch breaks interoperability with correct implementations. 2089 2090 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 2091 re-used X509_PUBKEY object if the second PUBKEY is malformed. 2092 2093 *Bernd Edlinger* 2094 2095 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 2096 2097 *Richard Levitte* 2098 2099 * Changed the license to the Apache License v2.0. 2100 2101 *Richard Levitte* 2102 2103 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 2104 2105 - Major releases (indicated by incrementing the MAJOR release number) 2106 may introduce incompatible API/ABI changes. 2107 - Minor releases (indicated by incrementing the MINOR release number) 2108 may introduce new features but retain API/ABI compatibility. 2109 - Patch releases (indicated by incrementing the PATCH number) 2110 are intended for bug fixes and other improvements of existing 2111 features only (like improving performance or adding documentation) 2112 and retain API/ABI compatibility. 2113 2114 *Richard Levitte* 2115 2116 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 2117 2118 *Todd Short* 2119 2120 * Remove the 'dist' target and add a tarball building script. The 2121 'dist' target has fallen out of use, and it shouldn't be 2122 necessary to configure just to create a source distribution. 2123 2124 *Richard Levitte* 2125 2126 * Recreate the OS390-Unix config target. It no longer relies on a 2127 special script like it did for OpenSSL pre-1.1.0. 2128 2129 *Richard Levitte* 2130 2131 * Instead of having the source directories listed in Configure, add 2132 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 2133 look into. 2134 2135 *Richard Levitte* 2136 2137 * Add GMAC to EVP_MAC. 2138 2139 *Paul Dale* 2140 2141 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 2142 2143 *Richard Levitte* 2144 2145 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 2146 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 2147 to facilitate the continued use of MACs through raw private keys in 2148 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 2149 2150 *Richard Levitte* 2151 2152 * Deprecate ECDH_KDF_X9_62(). 2153 2154 *Antoine Salon* 2155 2156 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2157 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2158 are retained for backwards compatibility. 2159 2160 *Antoine Salon* 2161 2162 * AES-XTS mode now enforces that its two keys are different to mitigate 2163 the attacked described in "Efficient Instantiations of Tweakable 2164 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2165 Details of this attack can be obtained from: 2166 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2167 2168 *Paul Dale* 2169 2170 * Rename the object files, i.e. give them other names than in previous 2171 versions. Their names now include the name of the final product, as 2172 well as its type mnemonic (bin, lib, shlib). 2173 2174 *Richard Levitte* 2175 2176 * Added new option for 'openssl list', '-objects', which will display the 2177 list of built in objects, i.e. OIDs with names. 2178 2179 *Richard Levitte* 2180 2181 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2182 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2183 be set explicitly. 2184 2185 *Chris Novakovic* 2186 2187 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2188 improves application performance by removing data copies and providing 2189 applications with zero-copy system calls such as sendfile and splice. 2190 2191 *Boris Pismenny* 2192 2193 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2194 2195 *Martin Elshuber* 2196 2197 * `PKCS12_parse` now maintains the order of the parsed certificates 2198 when outputting them via `*ca` (rather than reversing it). 2199 2200 *David von Oheimb* 2201 2202 * Deprecated pthread fork support methods. 2203 2204 *Randall S. Becker* 2205 2206 * Added support for FFDHE key exchange in TLS 1.3. 2207 2208 *Raja Ashok* 2209 2210 * Added a new concept for OpenSSL plugability: providers. This 2211 functionality is designed to replace the ENGINE API and ENGINE 2212 implementations, and to be much more dynamic, allowing provider 2213 authors to introduce new algorithms among other things, as long as 2214 there's an API that supports the algorithm type. 2215 2216 With this concept comes a new core API for interaction between 2217 libcrypto and provider implementations. Public libcrypto functions 2218 that want to use providers do so through this core API. 2219 2220 The main documentation for this core API is found in 2221 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2222 refer to other manuals describing the API specific for supported 2223 algorithm types (also called operations). 2224 2225 *The OpenSSL team* 2226 2227OpenSSL 1.1.1 2228------------- 2229 2230### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2231 2232 * Avoid loading of a dynamic engine twice. 2233 2234 *Bernd Edlinger* 2235 2236 * Prioritise DANE TLSA issuer certs over peer certs 2237 2238 *Viktor Dukhovni* 2239 2240 * Fixed random API for MacOS prior to 10.12 2241 2242 These MacOS versions don't support the CommonCrypto APIs 2243 2244 *Lenny Primak* 2245 2246### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2247 2248 * Fixed an SM2 Decryption Buffer Overflow. 2249 2250 In order to decrypt SM2 encrypted data an application is expected to 2251 call the API function EVP_PKEY_decrypt(). Typically an application will 2252 call this function twice. The first time, on entry, the "out" parameter 2253 can be NULL and, on exit, the "outlen" parameter is populated with the 2254 buffer size required to hold the decrypted plaintext. The application 2255 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2256 again, but this time passing a non-NULL value for the "out" parameter. 2257 2258 A bug in the implementation of the SM2 decryption code means that the 2259 calculation of the buffer size required to hold the plaintext returned 2260 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2261 size required by the second call. This can lead to a buffer overflow 2262 when EVP_PKEY_decrypt() is called by the application a second time with 2263 a buffer that is too small. 2264 2265 A malicious attacker who is able present SM2 content for decryption to 2266 an application could cause attacker chosen data to overflow the buffer 2267 by up to a maximum of 62 bytes altering the contents of other data held 2268 after the buffer, possibly changing application behaviour or causing 2269 the application to crash. The location of the buffer is application 2270 dependent but is typically heap allocated. 2271 ([CVE-2021-3711]) 2272 2273 *Matt Caswell* 2274 2275 * Fixed various read buffer overruns processing ASN.1 strings 2276 2277 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2278 structure which contains a buffer holding the string data and a field 2279 holding the buffer length. This contrasts with normal C strings which 2280 are repesented as a buffer for the string data which is terminated 2281 with a NUL (0) byte. 2282 2283 Although not a strict requirement, ASN.1 strings that are parsed using 2284 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2285 well as any string whose value has been set with the ASN1_STRING_set() 2286 function will additionally NUL terminate the byte array in the 2287 ASN1_STRING structure. 2288 2289 However, it is possible for applications to directly construct valid 2290 ASN1_STRING structures which do not NUL terminate the byte array by 2291 directly setting the "data" and "length" fields in the ASN1_STRING 2292 array. This can also happen by using the ASN1_STRING_set0() function. 2293 2294 Numerous OpenSSL functions that print ASN.1 data have been found to 2295 assume that the ASN1_STRING byte array will be NUL terminated, even 2296 though this is not guaranteed for strings that have been directly 2297 constructed. Where an application requests an ASN.1 structure to be 2298 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2299 been directly constructed by the application without NUL terminating 2300 the "data" field, then a read buffer overrun can occur. 2301 2302 The same thing can also occur during name constraints processing 2303 of certificates (for example if a certificate has been directly 2304 constructed by the application instead of loading it via the OpenSSL 2305 parsing functions, and the certificate contains non NUL terminated 2306 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2307 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2308 2309 If a malicious actor can cause an application to directly construct an 2310 ASN1_STRING and then process it through one of the affected OpenSSL 2311 functions then this issue could be hit. This might result in a crash 2312 (causing a Denial of Service attack). It could also result in the 2313 disclosure of private memory contents (such as private keys, or 2314 sensitive plaintext). 2315 ([CVE-2021-3712]) 2316 2317 *Matt Caswell* 2318 2319### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2320 2321 * Fixed a problem with verifying a certificate chain when using the 2322 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2323 the certificates present in a certificate chain. It is not set by default. 2324 2325 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2326 the chain that have explicitly encoded elliptic curve parameters was added 2327 as an additional strict check. 2328 2329 An error in the implementation of this check meant that the result of a 2330 previous check to confirm that certificates in the chain are valid CA 2331 certificates was overwritten. This effectively bypasses the check 2332 that non-CA certificates must not be able to issue other certificates. 2333 2334 If a "purpose" has been configured then there is a subsequent opportunity 2335 for checks that the certificate is a valid CA. All of the named "purpose" 2336 values implemented in libcrypto perform this check. Therefore, where 2337 a purpose is set the certificate chain will still be rejected even when the 2338 strict flag has been used. A purpose is set by default in libssl client and 2339 server certificate verification routines, but it can be overridden or 2340 removed by an application. 2341 2342 In order to be affected, an application must explicitly set the 2343 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2344 for the certificate verification or, in the case of TLS client or server 2345 applications, override the default purpose. 2346 ([CVE-2021-3450]) 2347 2348 *Tomáš Mráz* 2349 2350 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2351 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2352 renegotiation ClientHello omits the signature_algorithms extension (where it 2353 was present in the initial ClientHello), but includes a 2354 signature_algorithms_cert extension then a NULL pointer dereference will 2355 result, leading to a crash and a denial of service attack. 2356 2357 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2358 (which is the default configuration). OpenSSL TLS clients are not impacted by 2359 this issue. 2360 ([CVE-2021-3449]) 2361 2362 *Peter Kästle and Samuel Sapalski* 2363 2364### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2365 2366 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2367 create a unique hash value based on the issuer and serial number data 2368 contained within an X509 certificate. However it was failing to correctly 2369 handle any errors that may occur while parsing the issuer field (which might 2370 occur if the issuer field is maliciously constructed). This may subsequently 2371 result in a NULL pointer deref and a crash leading to a potential denial of 2372 service attack. 2373 ([CVE-2021-23841]) 2374 2375 *Matt Caswell* 2376 2377 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2378 padding mode to correctly check for rollback attacks. This is considered a 2379 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2380 CVE-2021-23839. 2381 2382 *Matt Caswell* 2383 2384 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2385 functions. Previously they could overflow the output length argument in some 2386 cases where the input length is close to the maximum permissable length for 2387 an integer on the platform. In such cases the return value from the function 2388 call would be 1 (indicating success), but the output length value would be 2389 negative. This could cause applications to behave incorrectly or crash. 2390 ([CVE-2021-23840]) 2391 2392 *Matt Caswell* 2393 2394 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2395 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2396 could be exploited in a side channel attack to recover the password. Since 2397 the attack is local host only this is outside of the current OpenSSL 2398 threat model and therefore no CVE is assigned. 2399 2400 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2401 issue. 2402 2403 *Matt Caswell* 2404 2405### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2406 2407 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2408 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2409 If an attacker can control both items being compared then this could lead 2410 to a possible denial of service attack. OpenSSL itself uses the 2411 GENERAL_NAME_cmp function for two purposes: 2412 1) Comparing CRL distribution point names between an available CRL and a 2413 CRL distribution point embedded in an X509 certificate 2414 2) When verifying that a timestamp response token signer matches the 2415 timestamp authority name (exposed via the API functions 2416 TS_RESP_verify_response and TS_RESP_verify_token) 2417 ([CVE-2020-1971]) 2418 2419 *Matt Caswell* 2420 2421### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2422 2423 * Certificates with explicit curve parameters are now disallowed in 2424 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2425 2426 *Tomáš Mráz* 2427 2428 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2429 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2430 conversely, silently ignore DTLS protocol version bounds when configuring 2431 TLS-based contexts. The commands can be repeated to set bounds of both 2432 types. The same applies with the corresponding "min_protocol" and 2433 "max_protocol" command-line switches, in case some application uses both TLS 2434 and DTLS. 2435 2436 SSL_CTX instances that are created for a fixed protocol version (e.g. 2437 TLSv1_server_method()) also silently ignore version bounds. Previously 2438 attempts to apply bounds to these protocol versions would result in an 2439 error. Now only the "version-flexible" SSL_CTX instances are subject to 2440 limits in configuration files in command-line options. 2441 2442 *Viktor Dukhovni* 2443 2444 * Handshake now fails if Extended Master Secret extension is dropped 2445 on renegotiation. 2446 2447 *Tomáš Mráz* 2448 2449 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2450 2451### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2452 2453 * Fixed segmentation fault in SSL_check_chain() 2454 Server or client applications that call the SSL_check_chain() function 2455 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2456 dereference as a result of incorrect handling of the 2457 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2458 or unrecognised signature algorithm is received from the peer. This could 2459 be exploited by a malicious peer in a Denial of Service attack. 2460 ([CVE-2020-1967]) 2461 2462 *Benjamin Kaduk* 2463 2464 * Added AES consttime code for no-asm configurations 2465 an optional constant time support for AES was added 2466 when building openssl for no-asm. 2467 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2468 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2469 At this time this feature is by default disabled. 2470 It will be enabled by default in 3.0. 2471 2472 *Bernd Edlinger* 2473 2474### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2475 2476 * Revert the change of EOF detection while reading in libssl to avoid 2477 regressions in applications depending on the current way of reporting 2478 the EOF. As the existing method is not fully accurate the change to 2479 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2480 branch and will be present in the 3.0 release. 2481 2482 *Tomáš Mráz* 2483 2484 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2485 when primes for RSA keys are computed. 2486 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2487 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2488 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2489 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2490 This avoids possible fingerprinting of newly generated RSA modules. 2491 2492 *Bernd Edlinger* 2493 2494### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2495 2496 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2497 while reading in libssl then we would report an error back to the 2498 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2499 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2500 therefore give a hint as to what went wrong. 2501 2502 *Matt Caswell* 2503 2504 * Check that ed25519 and ed448 are allowed by the security level. Previously 2505 signature algorithms not using an MD were not being checked that they were 2506 allowed by the security level. 2507 2508 *Kurt Roeckx* 2509 2510 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2511 was not quite right. The behaviour was not consistent between resumption 2512 and normal handshakes, and also not quite consistent with historical 2513 behaviour. The behaviour in various scenarios has been clarified and 2514 it has been updated to make it match historical behaviour as closely as 2515 possible. 2516 2517 *Matt Caswell* 2518 2519 * *[VMS only]* The header files that the VMS compilers include automatically, 2520 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2521 that the C++ compiler doesn't understand. This is a shortcoming in the 2522 compiler, but can be worked around with `__cplusplus` guards. 2523 2524 C++ applications that use OpenSSL libraries must be compiled using the 2525 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2526 functions. Otherwise, only functions with symbols of less than 31 2527 characters can be used, as the linker will not be able to successfully 2528 resolve symbols with longer names. 2529 2530 *Richard Levitte* 2531 2532 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2533 The presence of this system service is determined at run-time. 2534 2535 *Richard Levitte* 2536 2537 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2538 the first value. 2539 2540 *Jon Spillett* 2541 2542### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2543 2544 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2545 number generator (RNG). This was intended to include protection in the 2546 event of a fork() system call in order to ensure that the parent and child 2547 processes did not share the same RNG state. However this protection was not 2548 being used in the default case. 2549 2550 A partial mitigation for this issue is that the output from a high 2551 precision timer is mixed into the RNG state so the likelihood of a parent 2552 and child process sharing state is significantly reduced. 2553 2554 If an application already calls OPENSSL_init_crypto() explicitly using 2555 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2556 ([CVE-2019-1549]) 2557 2558 *Matthias St. Pierre* 2559 2560 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2561 used even when parsing explicit parameters, when loading a encoded key 2562 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2563 `EC_GROUP_new_from_ecparameters()`. 2564 This prevents bypass of security hardening and performance gains, 2565 especially for curves with specialized EC_METHODs. 2566 By default, if a key encoded with explicit parameters is loaded and later 2567 encoded, the output is still encoded with explicit parameters, even if 2568 internally a "named" EC_GROUP is used for computation. 2569 2570 *Nicola Tuveri* 2571 2572 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2573 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2574 NULL. After this change, only the cofactor parameter can be NULL. It also 2575 does some minimal sanity checks on the passed order. 2576 ([CVE-2019-1547]) 2577 2578 *Billy Bob Brumley* 2579 2580 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2581 An attack is simple, if the first CMS_recipientInfo is valid but the 2582 second CMS_recipientInfo is chosen ciphertext. If the second 2583 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2584 encryption key will be replaced by garbage, and the message cannot be 2585 decoded, but if the RSA decryption fails, the correct encryption key is 2586 used and the recipient will not notice the attack. 2587 As a work around for this potential attack the length of the decrypted 2588 key must be equal to the cipher default key length, in case the 2589 certifiate is not given and all recipientInfo are tried out. 2590 The old behaviour can be re-enabled in the CMS code by setting the 2591 CMS_DEBUG_DECRYPT flag. 2592 ([CVE-2019-1563]) 2593 2594 *Bernd Edlinger* 2595 2596 * Early start up entropy quality from the DEVRANDOM seed source has been 2597 improved for older Linux systems. The RAND subsystem will wait for 2598 /dev/random to be producing output before seeding from /dev/urandom. 2599 The seeded state is stored for future library initialisations using 2600 a system global shared memory segment. The shared memory identifier 2601 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2602 the desired value. The default identifier is 114. 2603 2604 *Paul Dale* 2605 2606 * Correct the extended master secret constant on EBCDIC systems. Without this 2607 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2608 negotiate EMS will fail. Unfortunately this also means that TLS connections 2609 between EBCDIC systems with this fix, and EBCDIC systems without this 2610 fix will fail if they negotiate EMS. 2611 2612 *Matt Caswell* 2613 2614 * Use Windows installation paths in the mingw builds 2615 2616 Mingw isn't a POSIX environment per se, which means that Windows 2617 paths should be used for installation. 2618 ([CVE-2019-1552]) 2619 2620 *Richard Levitte* 2621 2622 * Changed DH_check to accept parameters with order q and 2q subgroups. 2623 With order 2q subgroups the bit 0 of the private key is not secret 2624 but DH_generate_key works around that by clearing bit 0 of the 2625 private key for those. This avoids leaking bit 0 of the private key. 2626 2627 *Bernd Edlinger* 2628 2629 * Significantly reduce secure memory usage by the randomness pools. 2630 2631 *Paul Dale* 2632 2633 * Revert the DEVRANDOM_WAIT feature for Linux systems 2634 2635 The DEVRANDOM_WAIT feature added a select() call to wait for the 2636 /dev/random device to become readable before reading from the 2637 /dev/urandom device. 2638 2639 It turned out that this change had negative side effects on 2640 performance which were not acceptable. After some discussion it 2641 was decided to revert this feature and leave it up to the OS 2642 resp. the platform maintainer to ensure a proper initialization 2643 during early boot time. 2644 2645 *Matthias St. Pierre* 2646 2647### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2648 2649 * Add build tests for C++. These are generated files that only do one 2650 thing, to include one public OpenSSL head file each. This tests that 2651 the public header files can be usefully included in a C++ application. 2652 2653 This test isn't enabled by default. It can be enabled with the option 2654 'enable-buildtest-c++'. 2655 2656 *Richard Levitte* 2657 2658 * Enable SHA3 pre-hashing for ECDSA and DSA. 2659 2660 *Patrick Steuer* 2661 2662 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2663 This changes the size when using the `genpkey` command when no size is given. 2664 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2665 generation commands to use 2048 bits by default. 2666 2667 *Kurt Roeckx* 2668 2669 * Reorganize the manual pages to consistently have RETURN VALUES, 2670 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2671 util/fix-doc-nits accordingly. 2672 2673 *Paul Yang, Joshua Lock* 2674 2675 * Add the missing accessor EVP_PKEY_get0_engine() 2676 2677 *Matt Caswell* 2678 2679 * Have commands like `s_client` and `s_server` output the signature scheme 2680 along with other cipher suite parameters when debugging. 2681 2682 *Lorinczy Zsigmond* 2683 2684 * Make OPENSSL_config() error agnostic again. 2685 2686 *Richard Levitte* 2687 2688 * Do the error handling in RSA decryption constant time. 2689 2690 *Bernd Edlinger* 2691 2692 * Prevent over long nonces in ChaCha20-Poly1305. 2693 2694 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2695 for every encryption operation. RFC 7539 specifies that the nonce value 2696 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2697 and front pads the nonce with 0 bytes if it is less than 12 2698 bytes. However it also incorrectly allows a nonce to be set of up to 16 2699 bytes. In this case only the last 12 bytes are significant and any 2700 additional leading bytes are ignored. 2701 2702 It is a requirement of using this cipher that nonce values are 2703 unique. Messages encrypted using a reused nonce value are susceptible to 2704 serious confidentiality and integrity attacks. If an application changes 2705 the default nonce length to be longer than 12 bytes and then makes a 2706 change to the leading bytes of the nonce expecting the new value to be a 2707 new unique nonce then such an application could inadvertently encrypt 2708 messages with a reused nonce. 2709 2710 Additionally the ignored bytes in a long nonce are not covered by the 2711 integrity guarantee of this cipher. Any application that relies on the 2712 integrity of these ignored leading bytes of a long nonce may be further 2713 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2714 is safe because no such use sets such a long nonce value. However user 2715 applications that use this cipher directly and set a non-default nonce 2716 length to be longer than 12 bytes may be vulnerable. 2717 2718 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2719 Greef of Ronomon. 2720 ([CVE-2019-1543]) 2721 2722 *Matt Caswell* 2723 2724 * Add DEVRANDOM_WAIT feature for Linux systems 2725 2726 On older Linux systems where the getrandom() system call is not available, 2727 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2728 Contrary to getrandom(), the /dev/urandom device will not block during 2729 early boot when the kernel CSPRNG has not been seeded yet. 2730 2731 To mitigate this known weakness, use select() to wait for /dev/random to 2732 become readable before reading from /dev/urandom. 2733 2734 * Ensure that SM2 only uses SM3 as digest algorithm 2735 2736 *Paul Yang* 2737 2738### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2739 2740 * Change the info callback signals for the start and end of a post-handshake 2741 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2742 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2743 confused by this and assume that a TLSv1.2 renegotiation has started. This 2744 can break KeyUpdate handling. Instead we no longer signal the start and end 2745 of a post handshake message exchange (although the messages themselves are 2746 still signalled). This could break some applications that were expecting 2747 the old signals. However without this KeyUpdate is not usable for many 2748 applications. 2749 2750 *Matt Caswell* 2751 2752### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2753 2754 * Timing vulnerability in DSA signature generation 2755 2756 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2757 timing side channel attack. An attacker could use variations in the signing 2758 algorithm to recover the private key. 2759 2760 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2761 ([CVE-2018-0734]) 2762 2763 *Paul Dale* 2764 2765 * Timing vulnerability in ECDSA signature generation 2766 2767 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2768 timing side channel attack. An attacker could use variations in the signing 2769 algorithm to recover the private key. 2770 2771 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2772 ([CVE-2018-0735]) 2773 2774 *Paul Dale* 2775 2776 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2777 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2778 of two gigabytes and the error handling improved. 2779 2780 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 2781 categorized as a normal bug, not a security issue, because the DRBG reseeds 2782 automatically and is fully functional even without additional randomness 2783 provided by the application. 2784 2785### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 2786 2787 * Add a new ClientHello callback. Provides a callback interface that gives 2788 the application the ability to adjust the nascent SSL object at the 2789 earliest stage of ClientHello processing, immediately after extensions have 2790 been collected but before they have been processed. In particular, this 2791 callback can adjust the supported TLS versions in response to the contents 2792 of the ClientHello 2793 2794 *Benjamin Kaduk* 2795 2796 * Add SM2 base algorithm support. 2797 2798 *Jack Lloyd* 2799 2800 * s390x assembly pack: add (improved) hardware-support for the following 2801 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 2802 aes-cfb/cfb8, aes-ecb. 2803 2804 *Patrick Steuer* 2805 2806 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 2807 parameter is no longer accepted, as it leads to a corrupt table. NULL 2808 pem_str is reserved for alias entries only. 2809 2810 *Richard Levitte* 2811 2812 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2813 step for prime curves. The new implementation is based on formulae from 2814 differential addition-and-doubling in homogeneous projective coordinates 2815 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 2816 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 2817 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 2818 to work in projective coordinates. 2819 2820 *Billy Bob Brumley, Nicola Tuveri* 2821 2822 * Change generating and checking of primes so that the error rate of not 2823 being prime depends on the intended use based on the size of the input. 2824 For larger primes this will result in more rounds of Miller-Rabin. 2825 The maximal error rate for primes with more than 1080 bits is lowered 2826 to 2^-128. 2827 2828 *Kurt Roeckx, Annie Yousar* 2829 2830 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 2831 2832 *Kurt Roeckx* 2833 2834 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 2835 moving between systems, and to avoid confusion when a Windows build is 2836 done with mingw vs with MSVC. For POSIX installs, there's still a 2837 symlink or copy named 'tsget' to avoid that confusion as well. 2838 2839 *Richard Levitte* 2840 2841 * Revert blinding in ECDSA sign and instead make problematic addition 2842 length-invariant. Switch even to fixed-length Montgomery multiplication. 2843 2844 *Andy Polyakov* 2845 2846 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2847 step for binary curves. The new implementation is based on formulae from 2848 differential addition-and-doubling in mixed Lopez-Dahab projective 2849 coordinates, modified to independently blind the operands. 2850 2851 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2852 2853 * Add a scaffold to optionally enhance the Montgomery ladder implementation 2854 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 2855 EC_METHODs to implement their own specialized "ladder step", to take 2856 advantage of more favorable coordinate systems or more efficient 2857 differential addition-and-doubling algorithms. 2858 2859 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2860 2861 * Modified the random device based seed sources to keep the relevant 2862 file descriptors open rather than reopening them on each access. 2863 This allows such sources to operate in a chroot() jail without 2864 the associated device nodes being available. This behaviour can be 2865 controlled using RAND_keep_random_devices_open(). 2866 2867 *Paul Dale* 2868 2869 * Numerous side-channel attack mitigations have been applied. This may have 2870 performance impacts for some algorithms for the benefit of improved 2871 security. Specific changes are noted in this change log by their respective 2872 authors. 2873 2874 *Matt Caswell* 2875 2876 * AIX shared library support overhaul. Switch to AIX "natural" way of 2877 handling shared libraries, which means collecting shared objects of 2878 different versions and bitnesses in one common archive. This allows to 2879 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 2880 doesn't affect the way 3rd party applications are linked, only how 2881 multi-version installation is managed. 2882 2883 *Andy Polyakov* 2884 2885 * Make ec_group_do_inverse_ord() more robust and available to other 2886 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 2887 mitigations are applied to the fallback BN_mod_inverse(). 2888 When using this function rather than BN_mod_inverse() directly, new 2889 EC cryptosystem implementations are then safer-by-default. 2890 2891 *Billy Bob Brumley* 2892 2893 * Add coordinate blinding for EC_POINT and implement projective 2894 coordinate blinding for generic prime curves as a countermeasure to 2895 chosen point SCA attacks. 2896 2897 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 2898 2899 * Add blinding to ECDSA and DSA signatures to protect against side channel 2900 attacks discovered by Keegan Ryan (NCC Group). 2901 2902 *Matt Caswell* 2903 2904 * Enforce checking in the `pkeyutl` command to ensure that the input 2905 length does not exceed the maximum supported digest length when performing 2906 a sign, verify or verifyrecover operation. 2907 2908 *Matt Caswell* 2909 2910 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 2911 I/O in combination with something like select() or poll() will hang. This 2912 can be turned off again using SSL_CTX_clear_mode(). 2913 Many applications do not properly handle non-application data records, and 2914 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 2915 around the problems in those applications, but can also break some. 2916 It's recommended to read the manpages about SSL_read(), SSL_write(), 2917 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 2918 SSL_CTX_set_read_ahead() again. 2919 2920 *Kurt Roeckx* 2921 2922 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 2923 now allow empty (zero character) pass phrases. 2924 2925 *Richard Levitte* 2926 2927 * Apply blinding to binary field modular inversion and remove patent 2928 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 2929 2930 *Billy Bob Brumley* 2931 2932 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 2933 binary and prime elliptic curves. 2934 2935 *Billy Bob Brumley* 2936 2937 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 2938 constant time fixed point multiplication. 2939 2940 *Billy Bob Brumley* 2941 2942 * Revise elliptic curve scalar multiplication with timing attack 2943 defenses: ec_wNAF_mul redirects to a constant time implementation 2944 when computing fixed point and variable point multiplication (which 2945 in OpenSSL are mostly used with secret scalars in keygen, sign, 2946 ECDH derive operations). 2947 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 2948 Sohaib ul Hassan* 2949 2950 * Updated CONTRIBUTING 2951 2952 *Rich Salz* 2953 2954 * Updated DRBG / RAND to request nonce and additional low entropy 2955 randomness from the system. 2956 2957 *Matthias St. Pierre* 2958 2959 * Updated 'openssl rehash' to use OpenSSL consistent default. 2960 2961 *Richard Levitte* 2962 2963 * Moved the load of the ssl_conf module to libcrypto, which helps 2964 loading engines that libssl uses before libssl is initialised. 2965 2966 *Matt Caswell* 2967 2968 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 2969 2970 *Matt Caswell* 2971 2972 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 2973 2974 *Ingo Schwarze, Rich Salz* 2975 2976 * Added output of accepting IP address and port for 'openssl s_server' 2977 2978 *Richard Levitte* 2979 2980 * Added a new API for TLSv1.3 ciphersuites: 2981 SSL_CTX_set_ciphersuites() 2982 SSL_set_ciphersuites() 2983 2984 *Matt Caswell* 2985 2986 * Memory allocation failures consistently add an error to the error 2987 stack. 2988 2989 *Rich Salz* 2990 2991 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 2992 in libcrypto when run as setuid/setgid. 2993 2994 *Bernd Edlinger* 2995 2996 * Load any config file by default when libssl is used. 2997 2998 *Matt Caswell* 2999 3000 * Added new public header file <openssl/rand_drbg.h> and documentation 3001 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 3002 3003 *Matthias St. Pierre* 3004 3005 * QNX support removed (cannot find contributors to get their approval 3006 for the license change). 3007 3008 *Rich Salz* 3009 3010 * TLSv1.3 replay protection for early data has been implemented. See the 3011 SSL_read_early_data() man page for further details. 3012 3013 *Matt Caswell* 3014 3015 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 3016 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 3017 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 3018 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 3019 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 3020 configuration has been separated out. See the ciphers man page or the 3021 SSL_CTX_set_ciphersuites() man page for more information. 3022 3023 *Matt Caswell* 3024 3025 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 3026 in responder mode now supports the new "-multi" option, which 3027 spawns the specified number of child processes to handle OCSP 3028 requests. The "-timeout" option now also limits the OCSP 3029 responder's patience to wait to receive the full client request 3030 on a newly accepted connection. Child processes are respawned 3031 as needed, and the CA index file is automatically reloaded 3032 when changed. This makes it possible to run the "ocsp" responder 3033 as a long-running service, making the OpenSSL CA somewhat more 3034 feature-complete. In this mode, most diagnostic messages logged 3035 after entering the event loop are logged via syslog(3) rather than 3036 written to stderr. 3037 3038 *Viktor Dukhovni* 3039 3040 * Added support for X448 and Ed448. Heavily based on original work by 3041 Mike Hamburg. 3042 3043 *Matt Caswell* 3044 3045 * Extend OSSL_STORE with capabilities to search and to narrow the set of 3046 objects loaded. This adds the functions OSSL_STORE_expect() and 3047 OSSL_STORE_find() as well as needed tools to construct searches and 3048 get the search data out of them. 3049 3050 *Richard Levitte* 3051 3052 * Support for TLSv1.3 added. Note that users upgrading from an earlier 3053 version of OpenSSL should review their configuration settings to ensure 3054 that they are still appropriate for TLSv1.3. For further information see: 3055 <https://wiki.openssl.org/index.php/TLS1.3> 3056 3057 *Matt Caswell* 3058 3059 * Grand redesign of the OpenSSL random generator 3060 3061 The default RAND method now utilizes an AES-CTR DRBG according to 3062 NIST standard SP 800-90Ar1. The new random generator is essentially 3063 a port of the default random generator from the OpenSSL FIPS 2.0 3064 object module. It is a hybrid deterministic random bit generator 3065 using an AES-CTR bit stream and which seeds and reseeds itself 3066 automatically using trusted system entropy sources. 3067 3068 Some of its new features are: 3069 - Support for multiple DRBG instances with seed chaining. 3070 - The default RAND method makes use of a DRBG. 3071 - There is a public and private DRBG instance. 3072 - The DRBG instances are fork-safe. 3073 - Keep all global DRBG instances on the secure heap if it is enabled. 3074 - The public and private DRBG instance are per thread for lock free 3075 operation 3076 3077 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 3078 3079 * Changed Configure so it only says what it does and doesn't dump 3080 so much data. Instead, ./configdata.pm should be used as a script 3081 to display all sorts of configuration data. 3082 3083 *Richard Levitte* 3084 3085 * Added processing of "make variables" to Configure. 3086 3087 *Richard Levitte* 3088 3089 * Added SHA512/224 and SHA512/256 algorithm support. 3090 3091 *Paul Dale* 3092 3093 * The last traces of Netware support, first removed in 1.1.0, have 3094 now been removed. 3095 3096 *Rich Salz* 3097 3098 * Get rid of Makefile.shared, and in the process, make the processing 3099 of certain files (rc.obj, or the .def/.map/.opt files produced from 3100 the ordinal files) more visible and hopefully easier to trace and 3101 debug (or make silent). 3102 3103 *Richard Levitte* 3104 3105 * Make it possible to have environment variable assignments as 3106 arguments to config / Configure. 3107 3108 *Richard Levitte* 3109 3110 * Add multi-prime RSA (RFC 8017) support. 3111 3112 *Paul Yang* 3113 3114 * Add SM3 implemented according to GB/T 32905-2016 3115 *Jack Lloyd <jack.lloyd@ribose.com>,* 3116 *Ronald Tse <ronald.tse@ribose.com>,* 3117 *Erick Borsboom <erick.borsboom@ribose.com>* 3118 3119 * Add 'Maximum Fragment Length' TLS extension negotiation and support 3120 as documented in RFC6066. 3121 Based on a patch from Tomasz Moń 3122 3123 *Filipe Raimundo da Silva* 3124 3125 * Add SM4 implemented according to GB/T 32907-2016. 3126 *Jack Lloyd <jack.lloyd@ribose.com>,* 3127 *Ronald Tse <ronald.tse@ribose.com>,* 3128 *Erick Borsboom <erick.borsboom@ribose.com>* 3129 3130 * Reimplement -newreq-nodes and ERR_error_string_n; the 3131 original author does not agree with the license change. 3132 3133 *Rich Salz* 3134 3135 * Add ARIA AEAD TLS support. 3136 3137 *Jon Spillett* 3138 3139 * Some macro definitions to support VS6 have been removed. Visual 3140 Studio 6 has not worked since 1.1.0 3141 3142 *Rich Salz* 3143 3144 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 3145 without clearing the errors. 3146 3147 *Richard Levitte* 3148 3149 * Add "atfork" functions. If building on a system that without 3150 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 3151 requirements. The RAND facility now uses/requires this. 3152 3153 *Rich Salz* 3154 3155 * Add SHA3. 3156 3157 *Andy Polyakov* 3158 3159 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3160 not possible to disable entirely. However, it's still possible to 3161 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3162 as a fallback). 3163 3164 To disable, configure with 'no-ui-console'. 'no-ui' is still 3165 possible to use as an alias. Check at compile time with the 3166 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3167 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3168 3169 *Richard Levitte* 3170 3171 * Add a STORE module, which implements a uniform and URI based reader of 3172 stores that can contain keys, certificates, CRLs and numerous other 3173 objects. The main API is loosely based on a few stdio functions, 3174 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3175 OSSL_STORE_error and OSSL_STORE_close. 3176 The implementation uses backends called "loaders" to implement arbitrary 3177 URI schemes. There is one built in "loader" for the 'file' scheme. 3178 3179 *Richard Levitte* 3180 3181 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3182 then adjusted to work on FreeBSD 8.4 as well. 3183 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3184 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3185 3186 *Richard Levitte* 3187 3188 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3189 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3190 error code calls like this: 3191 3192 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3193 3194 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3195 that can be encoded in C. For the foreseeable future, this will only 3196 affect new modules. 3197 3198 *Richard Levitte and Tim Hudson* 3199 3200 * Removed BSD cryptodev engine. 3201 3202 *Rich Salz* 3203 3204 * Add a build target 'build_all_generated', to build all generated files 3205 and only that. This can be used to prepare everything that requires 3206 things like perl for a system that lacks perl and then move everything 3207 to that system and do the rest of the build there. 3208 3209 *Richard Levitte* 3210 3211 * In the UI interface, make it possible to duplicate the user data. This 3212 can be used by engines that need to retain the data for a longer time 3213 than just the call where this user data is passed. 3214 3215 *Richard Levitte* 3216 3217 * Ignore the '-named_curve auto' value for compatibility of applications 3218 with OpenSSL 1.0.2. 3219 3220 *Tomáš Mráz <tmraz@fedoraproject.org>* 3221 3222 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3223 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3224 alerts across multiple records (some of which could be empty). In practice 3225 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3226 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3227 support this at all. Supporting it adds significant complexity to the 3228 record layer, and its removal is unlikely to cause interoperability 3229 issues. 3230 3231 *Matt Caswell* 3232 3233 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3234 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3235 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3236 in OpenSSL 1.2.0. 3237 3238 *Richard Levitte* 3239 3240 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3241 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3242 3243 *Richard Levitte, Andy Polyakov* 3244 3245 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3246 does for RSA, etc. 3247 3248 *Richard Levitte* 3249 3250 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3251 platform rather than 'mingw'. 3252 3253 *Richard Levitte* 3254 3255 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3256 success if they are asked to add an object which already exists 3257 in the store. This change cascades to other functions which load 3258 certificates and CRLs. 3259 3260 *Paul Dale* 3261 3262 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3263 facilitate stack unwinding even from assembly subroutines. 3264 3265 *Andy Polyakov* 3266 3267 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3268 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3269 3270 *Richard Levitte* 3271 3272 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3273 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3274 which is the minimum version we support. 3275 3276 *Richard Levitte* 3277 3278 * Certificate time validation (X509_cmp_time) enforces stricter 3279 compliance with RFC 5280. Fractional seconds and timezone offsets 3280 are no longer allowed. 3281 3282 *Emilia Käsper* 3283 3284 * Add support for ARIA 3285 3286 *Paul Dale* 3287 3288 * s_client will now send the Server Name Indication (SNI) extension by 3289 default unless the new "-noservername" option is used. The server name is 3290 based on the host provided to the "-connect" option unless overridden by 3291 using "-servername". 3292 3293 *Matt Caswell* 3294 3295 * Add support for SipHash 3296 3297 *Todd Short* 3298 3299 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3300 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3301 prevent issues where no progress is being made and the peer continually 3302 sends unrecognised record types, using up resources processing them. 3303 3304 *Matt Caswell* 3305 3306 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3307 using the algorithm defined in 3308 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3309 3310 *Richard Levitte* 3311 3312 * Heartbeat support has been removed; the ABI is changed for now. 3313 3314 *Richard Levitte, Rich Salz* 3315 3316 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3317 3318 *Emilia Käsper* 3319 3320 * The RSA "null" method, which was partially supported to avoid patent 3321 issues, has been replaced to always returns NULL. 3322 3323 *Rich Salz* 3324 3325OpenSSL 1.1.0 3326------------- 3327 3328### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3329 3330 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3331 used even when parsing explicit parameters, when loading a encoded key 3332 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3333 `EC_GROUP_new_from_ecparameters()`. 3334 This prevents bypass of security hardening and performance gains, 3335 especially for curves with specialized EC_METHODs. 3336 By default, if a key encoded with explicit parameters is loaded and later 3337 encoded, the output is still encoded with explicit parameters, even if 3338 internally a "named" EC_GROUP is used for computation. 3339 3340 *Nicola Tuveri* 3341 3342 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3343 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3344 NULL. After this change, only the cofactor parameter can be NULL. It also 3345 does some minimal sanity checks on the passed order. 3346 ([CVE-2019-1547]) 3347 3348 *Billy Bob Brumley* 3349 3350 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3351 An attack is simple, if the first CMS_recipientInfo is valid but the 3352 second CMS_recipientInfo is chosen ciphertext. If the second 3353 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3354 encryption key will be replaced by garbage, and the message cannot be 3355 decoded, but if the RSA decryption fails, the correct encryption key is 3356 used and the recipient will not notice the attack. 3357 As a work around for this potential attack the length of the decrypted 3358 key must be equal to the cipher default key length, in case the 3359 certifiate is not given and all recipientInfo are tried out. 3360 The old behaviour can be re-enabled in the CMS code by setting the 3361 CMS_DEBUG_DECRYPT flag. 3362 ([CVE-2019-1563]) 3363 3364 *Bernd Edlinger* 3365 3366 * Use Windows installation paths in the mingw builds 3367 3368 Mingw isn't a POSIX environment per se, which means that Windows 3369 paths should be used for installation. 3370 ([CVE-2019-1552]) 3371 3372 *Richard Levitte* 3373 3374### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3375 3376 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3377 This changes the size when using the `genpkey` command when no size is given. 3378 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3379 generation commands to use 2048 bits by default. 3380 3381 *Kurt Roeckx* 3382 3383 * Prevent over long nonces in ChaCha20-Poly1305. 3384 3385 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3386 for every encryption operation. RFC 7539 specifies that the nonce value 3387 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3388 and front pads the nonce with 0 bytes if it is less than 12 3389 bytes. However it also incorrectly allows a nonce to be set of up to 16 3390 bytes. In this case only the last 12 bytes are significant and any 3391 additional leading bytes are ignored. 3392 3393 It is a requirement of using this cipher that nonce values are 3394 unique. Messages encrypted using a reused nonce value are susceptible to 3395 serious confidentiality and integrity attacks. If an application changes 3396 the default nonce length to be longer than 12 bytes and then makes a 3397 change to the leading bytes of the nonce expecting the new value to be a 3398 new unique nonce then such an application could inadvertently encrypt 3399 messages with a reused nonce. 3400 3401 Additionally the ignored bytes in a long nonce are not covered by the 3402 integrity guarantee of this cipher. Any application that relies on the 3403 integrity of these ignored leading bytes of a long nonce may be further 3404 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3405 is safe because no such use sets such a long nonce value. However user 3406 applications that use this cipher directly and set a non-default nonce 3407 length to be longer than 12 bytes may be vulnerable. 3408 3409 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3410 Greef of Ronomon. 3411 ([CVE-2019-1543]) 3412 3413 *Matt Caswell* 3414 3415 * Added SCA hardening for modular field inversion in EC_GROUP through 3416 a new dedicated field_inv() pointer in EC_METHOD. 3417 This also addresses a leakage affecting conversions from projective 3418 to affine coordinates. 3419 3420 *Billy Bob Brumley, Nicola Tuveri* 3421 3422 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3423 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3424 3425 *Bernd Edlinger* 3426 3427 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3428 3429 *Richard Levitte* 3430 3431 * Remove the 'dist' target and add a tarball building script. The 3432 'dist' target has fallen out of use, and it shouldn't be 3433 necessary to configure just to create a source distribution. 3434 3435 *Richard Levitte* 3436 3437### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3438 3439 * Timing vulnerability in DSA signature generation 3440 3441 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3442 timing side channel attack. An attacker could use variations in the signing 3443 algorithm to recover the private key. 3444 3445 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3446 ([CVE-2018-0734]) 3447 3448 *Paul Dale* 3449 3450 * Timing vulnerability in ECDSA signature generation 3451 3452 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3453 timing side channel attack. An attacker could use variations in the signing 3454 algorithm to recover the private key. 3455 3456 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3457 ([CVE-2018-0735]) 3458 3459 *Paul Dale* 3460 3461 * Add coordinate blinding for EC_POINT and implement projective 3462 coordinate blinding for generic prime curves as a countermeasure to 3463 chosen point SCA attacks. 3464 3465 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3466 3467### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3468 3469 * Client DoS due to large DH parameter 3470 3471 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3472 malicious server can send a very large prime value to the client. This will 3473 cause the client to spend an unreasonably long period of time generating a 3474 key for this prime resulting in a hang until the client has finished. This 3475 could be exploited in a Denial Of Service attack. 3476 3477 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3478 ([CVE-2018-0732]) 3479 3480 *Guido Vranken* 3481 3482 * Cache timing vulnerability in RSA Key Generation 3483 3484 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3485 a cache timing side channel attack. An attacker with sufficient access to 3486 mount cache timing attacks during the RSA key generation process could 3487 recover the private key. 3488 3489 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3490 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3491 ([CVE-2018-0737]) 3492 3493 *Billy Brumley* 3494 3495 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3496 parameter is no longer accepted, as it leads to a corrupt table. NULL 3497 pem_str is reserved for alias entries only. 3498 3499 *Richard Levitte* 3500 3501 * Revert blinding in ECDSA sign and instead make problematic addition 3502 length-invariant. Switch even to fixed-length Montgomery multiplication. 3503 3504 *Andy Polyakov* 3505 3506 * Change generating and checking of primes so that the error rate of not 3507 being prime depends on the intended use based on the size of the input. 3508 For larger primes this will result in more rounds of Miller-Rabin. 3509 The maximal error rate for primes with more than 1080 bits is lowered 3510 to 2^-128. 3511 3512 *Kurt Roeckx, Annie Yousar* 3513 3514 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3515 3516 *Kurt Roeckx* 3517 3518 * Add blinding to ECDSA and DSA signatures to protect against side channel 3519 attacks discovered by Keegan Ryan (NCC Group). 3520 3521 *Matt Caswell* 3522 3523 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3524 now allow empty (zero character) pass phrases. 3525 3526 *Richard Levitte* 3527 3528 * Certificate time validation (X509_cmp_time) enforces stricter 3529 compliance with RFC 5280. Fractional seconds and timezone offsets 3530 are no longer allowed. 3531 3532 *Emilia Käsper* 3533 3534 * Fixed a text canonicalisation bug in CMS 3535 3536 Where a CMS detached signature is used with text content the text goes 3537 through a canonicalisation process first prior to signing or verifying a 3538 signature. This process strips trailing space at the end of lines, converts 3539 line terminators to CRLF and removes additional trailing line terminators 3540 at the end of a file. A bug in the canonicalisation process meant that 3541 some characters, such as form-feed, were incorrectly treated as whitespace 3542 and removed. This is contrary to the specification (RFC5485). This fix 3543 could mean that detached text data signed with an earlier version of 3544 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3545 signed with a fixed OpenSSL may fail to verify with an earlier version of 3546 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3547 and use the "-binary" flag (for the "cms" command line application) or set 3548 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3549 3550 *Matt Caswell* 3551 3552### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3553 3554 * Constructed ASN.1 types with a recursive definition could exceed the stack 3555 3556 Constructed ASN.1 types with a recursive definition (such as can be found 3557 in PKCS7) could eventually exceed the stack given malicious input with 3558 excessive recursion. This could result in a Denial Of Service attack. There 3559 are no such structures used within SSL/TLS that come from untrusted sources 3560 so this is considered safe. 3561 3562 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3563 project. 3564 ([CVE-2018-0739]) 3565 3566 *Matt Caswell* 3567 3568 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3569 3570 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3571 effectively reduced to only comparing the least significant bit of each 3572 byte. This allows an attacker to forge messages that would be considered as 3573 authenticated in an amount of tries lower than that guaranteed by the 3574 security claims of the scheme. The module can only be compiled by the 3575 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3576 3577 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3578 (IBM). 3579 ([CVE-2018-0733]) 3580 3581 *Andy Polyakov* 3582 3583 * Add a build target 'build_all_generated', to build all generated files 3584 and only that. This can be used to prepare everything that requires 3585 things like perl for a system that lacks perl and then move everything 3586 to that system and do the rest of the build there. 3587 3588 *Richard Levitte* 3589 3590 * Backport SSL_OP_NO_RENGOTIATION 3591 3592 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3593 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3594 changes this is no longer possible in 1.1.0. Therefore the new 3595 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3596 1.1.0 to provide equivalent functionality. 3597 3598 Note that if an application built against 1.1.0h headers (or above) is run 3599 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3600 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3601 3602 *Matt Caswell* 3603 3604 * Removed the OS390-Unix config target. It relied on a script that doesn't 3605 exist. 3606 3607 *Rich Salz* 3608 3609 * rsaz_1024_mul_avx2 overflow bug on x86_64 3610 3611 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3612 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3613 Analysis suggests that attacks against RSA and DSA as a result of this 3614 defect would be very difficult to perform and are not believed likely. 3615 Attacks against DH1024 are considered just feasible, because most of the 3616 work necessary to deduce information about a private key may be performed 3617 offline. The amount of resources required for such an attack would be 3618 significant. However, for an attack on TLS to be meaningful, the server 3619 would have to share the DH1024 private key among multiple clients, which is 3620 no longer an option since CVE-2016-0701. 3621 3622 This only affects processors that support the AVX2 but not ADX extensions 3623 like Intel Haswell (4th generation). 3624 3625 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3626 was originally found via the OSS-Fuzz project. 3627 ([CVE-2017-3738]) 3628 3629 *Andy Polyakov* 3630 3631### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3632 3633 * bn_sqrx8x_internal carry bug on x86_64 3634 3635 There is a carry propagating bug in the x86_64 Montgomery squaring 3636 procedure. No EC algorithms are affected. Analysis suggests that attacks 3637 against RSA and DSA as a result of this defect would be very difficult to 3638 perform and are not believed likely. Attacks against DH are considered just 3639 feasible (although very difficult) because most of the work necessary to 3640 deduce information about a private key may be performed offline. The amount 3641 of resources required for such an attack would be very significant and 3642 likely only accessible to a limited number of attackers. An attacker would 3643 additionally need online access to an unpatched system using the target 3644 private key in a scenario with persistent DH parameters and a private 3645 key that is shared between multiple clients. 3646 3647 This only affects processors that support the BMI1, BMI2 and ADX extensions 3648 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3649 3650 This issue was reported to OpenSSL by the OSS-Fuzz project. 3651 ([CVE-2017-3736]) 3652 3653 *Andy Polyakov* 3654 3655 * Malformed X.509 IPAddressFamily could cause OOB read 3656 3657 If an X.509 certificate has a malformed IPAddressFamily extension, 3658 OpenSSL could do a one-byte buffer overread. The most likely result 3659 would be an erroneous display of the certificate in text format. 3660 3661 This issue was reported to OpenSSL by the OSS-Fuzz project. 3662 ([CVE-2017-3735]) 3663 3664 *Rich Salz* 3665 3666### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3667 3668 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3669 platform rather than 'mingw'. 3670 3671 *Richard Levitte* 3672 3673 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3674 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3675 which is the minimum version we support. 3676 3677 *Richard Levitte* 3678 3679### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3680 3681 * Encrypt-Then-Mac renegotiation crash 3682 3683 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3684 negotiated where it was not in the original handshake (or vice-versa) then 3685 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3686 and servers are affected. 3687 3688 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3689 ([CVE-2017-3733]) 3690 3691 *Matt Caswell* 3692 3693### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3694 3695 * Truncated packet could crash via OOB read 3696 3697 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3698 cipher is being used, then a truncated packet can cause that host to 3699 perform an out-of-bounds read, usually resulting in a crash. 3700 3701 This issue was reported to OpenSSL by Robert Święcki of Google. 3702 ([CVE-2017-3731]) 3703 3704 *Andy Polyakov* 3705 3706 * Bad (EC)DHE parameters cause a client crash 3707 3708 If a malicious server supplies bad parameters for a DHE or ECDHE key 3709 exchange then this can result in the client attempting to dereference a 3710 NULL pointer leading to a client crash. This could be exploited in a Denial 3711 of Service attack. 3712 3713 This issue was reported to OpenSSL by Guido Vranken. 3714 ([CVE-2017-3730]) 3715 3716 *Matt Caswell* 3717 3718 * BN_mod_exp may produce incorrect results on x86_64 3719 3720 There is a carry propagating bug in the x86_64 Montgomery squaring 3721 procedure. No EC algorithms are affected. Analysis suggests that attacks 3722 against RSA and DSA as a result of this defect would be very difficult to 3723 perform and are not believed likely. Attacks against DH are considered just 3724 feasible (although very difficult) because most of the work necessary to 3725 deduce information about a private key may be performed offline. The amount 3726 of resources required for such an attack would be very significant and 3727 likely only accessible to a limited number of attackers. An attacker would 3728 additionally need online access to an unpatched system using the target 3729 private key in a scenario with persistent DH parameters and a private 3730 key that is shared between multiple clients. For example this can occur by 3731 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3732 similar to CVE-2015-3193 but must be treated as a separate problem. 3733 3734 This issue was reported to OpenSSL by the OSS-Fuzz project. 3735 ([CVE-2017-3732]) 3736 3737 *Andy Polyakov* 3738 3739### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3740 3741 * ChaCha20/Poly1305 heap-buffer-overflow 3742 3743 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3744 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3745 crash. This issue is not considered to be exploitable beyond a DoS. 3746 3747 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3748 ([CVE-2016-7054]) 3749 3750 *Richard Levitte* 3751 3752 * CMS Null dereference 3753 3754 Applications parsing invalid CMS structures can crash with a NULL pointer 3755 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3756 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3757 structure callback if an attempt is made to free certain invalid encodings. 3758 Only CHOICE structures using a callback which do not handle NULL value are 3759 affected. 3760 3761 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3762 ([CVE-2016-7053]) 3763 3764 *Stephen Henson* 3765 3766 * Montgomery multiplication may produce incorrect results 3767 3768 There is a carry propagating bug in the Broadwell-specific Montgomery 3769 multiplication procedure that handles input lengths divisible by, but 3770 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3771 and DH private keys are impossible. This is because the subroutine in 3772 question is not used in operations with the private key itself and an input 3773 of the attacker's direct choice. Otherwise the bug can manifest itself as 3774 transient authentication and key negotiation failures or reproducible 3775 erroneous outcome of public-key operations with specially crafted input. 3776 Among EC algorithms only Brainpool P-512 curves are affected and one 3777 presumably can attack ECDH key negotiation. Impact was not analyzed in 3778 detail, because pre-requisites for attack are considered unlikely. Namely 3779 multiple clients have to choose the curve in question and the server has to 3780 share the private key among them, neither of which is default behaviour. 3781 Even then only clients that chose the curve will be affected. 3782 3783 This issue was publicly reported as transient failures and was not 3784 initially recognized as a security issue. Thanks to Richard Morgan for 3785 providing reproducible case. 3786 ([CVE-2016-7055]) 3787 3788 *Andy Polyakov* 3789 3790 * Removed automatic addition of RPATH in shared libraries and executables, 3791 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 3792 3793 *Richard Levitte* 3794 3795### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 3796 3797 * Fix Use After Free for large message sizes 3798 3799 The patch applied to address CVE-2016-6307 resulted in an issue where if a 3800 message larger than approx 16k is received then the underlying buffer to 3801 store the incoming message is reallocated and moved. Unfortunately a 3802 dangling pointer to the old location is left which results in an attempt to 3803 write to the previously freed location. This is likely to result in a 3804 crash, however it could potentially lead to execution of arbitrary code. 3805 3806 This issue only affects OpenSSL 1.1.0a. 3807 3808 This issue was reported to OpenSSL by Robert Święcki. 3809 ([CVE-2016-6309]) 3810 3811 *Matt Caswell* 3812 3813### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 3814 3815 * OCSP Status Request extension unbounded memory growth 3816 3817 A malicious client can send an excessively large OCSP Status Request 3818 extension. If that client continually requests renegotiation, sending a 3819 large OCSP Status Request extension each time, then there will be unbounded 3820 memory growth on the server. This will eventually lead to a Denial Of 3821 Service attack through memory exhaustion. Servers with a default 3822 configuration are vulnerable even if they do not support OCSP. Builds using 3823 the "no-ocsp" build time option are not affected. 3824 3825 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3826 ([CVE-2016-6304]) 3827 3828 *Matt Caswell* 3829 3830 * SSL_peek() hang on empty record 3831 3832 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 3833 sends an empty record. This could be exploited by a malicious peer in a 3834 Denial Of Service attack. 3835 3836 This issue was reported to OpenSSL by Alex Gaynor. 3837 ([CVE-2016-6305]) 3838 3839 *Matt Caswell* 3840 3841 * Excessive allocation of memory in tls_get_message_header() and 3842 dtls1_preprocess_fragment() 3843 3844 A (D)TLS message includes 3 bytes for its length in the header for the 3845 message. This would allow for messages up to 16Mb in length. Messages of 3846 this length are excessive and OpenSSL includes a check to ensure that a 3847 peer is sending reasonably sized messages in order to avoid too much memory 3848 being consumed to service a connection. A flaw in the logic of version 3849 1.1.0 means that memory for the message is allocated too early, prior to 3850 the excessive message length check. Due to way memory is allocated in 3851 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 3852 to service a connection. This could lead to a Denial of Service through 3853 memory exhaustion. However, the excessive message length check still takes 3854 place, and this would cause the connection to immediately fail. Assuming 3855 that the application calls SSL_free() on the failed connection in a timely 3856 manner then the 21Mb of allocated memory will then be immediately freed 3857 again. Therefore the excessive memory allocation will be transitory in 3858 nature. This then means that there is only a security impact if: 3859 3860 1) The application does not call SSL_free() in a timely manner in the event 3861 that the connection fails 3862 or 3863 2) The application is working in a constrained environment where there is 3864 very little free memory 3865 or 3866 3) The attacker initiates multiple connection attempts such that there are 3867 multiple connections in a state where memory has been allocated for the 3868 connection; SSL_free() has not yet been called; and there is insufficient 3869 memory to service the multiple requests. 3870 3871 Except in the instance of (1) above any Denial Of Service is likely to be 3872 transitory because as soon as the connection fails the memory is 3873 subsequently freed again in the SSL_free() call. However there is an 3874 increased risk during this period of application crashes due to the lack of 3875 memory - which would then mean a more serious Denial of Service. 3876 3877 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3878 (CVE-2016-6307 and CVE-2016-6308) 3879 3880 *Matt Caswell* 3881 3882 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 3883 had to be removed. Primary reason is that vendor assembler can't 3884 assemble our modules with -KPIC flag. As result it, assembly 3885 support, was not even available as option. But its lack means 3886 lack of side-channel resistant code, which is incompatible with 3887 security by todays standards. Fortunately gcc is readily available 3888 prepackaged option, which we firmly point at... 3889 3890 *Andy Polyakov* 3891 3892### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 3893 3894 * Windows command-line tool supports UTF-8 opt-in option for arguments 3895 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 3896 (to any value) allows Windows user to access PKCS#12 file generated 3897 with Windows CryptoAPI and protected with non-ASCII password, as well 3898 as files generated under UTF-8 locale on Linux also protected with 3899 non-ASCII password. 3900 3901 *Andy Polyakov* 3902 3903 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 3904 have been disabled by default and removed from DEFAULT, just like RC4. 3905 See the RC4 item below to re-enable both. 3906 3907 *Rich Salz* 3908 3909 * The method for finding the storage location for the Windows RAND seed file 3910 has changed. First we check %RANDFILE%. If that is not set then we check 3911 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 3912 all else fails we fall back to C:\. 3913 3914 *Matt Caswell* 3915 3916 * The EVP_EncryptUpdate() function has had its return type changed from void 3917 to int. A return of 0 indicates and error while a return of 1 indicates 3918 success. 3919 3920 *Matt Caswell* 3921 3922 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 3923 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 3924 off the constant time implementation for RSA, DSA and DH have been made 3925 no-ops and deprecated. 3926 3927 *Matt Caswell* 3928 3929 * Windows RAND implementation was simplified to only get entropy by 3930 calling CryptGenRandom(). Various other RAND-related tickets 3931 were also closed. 3932 3933 *Joseph Wylie Yandle, Rich Salz* 3934 3935 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 3936 and `OPENSSL_LH_`, respectively. The old names are available 3937 with API compatibility. They new names are now completely documented. 3938 3939 *Rich Salz* 3940 3941 * Unify TYPE_up_ref(obj) methods signature. 3942 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 3943 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 3944 int (instead of void) like all others TYPE_up_ref() methods. 3945 So now these methods also check the return value of CRYPTO_atomic_add(), 3946 and the validity of object reference counter. 3947 3948 *fdasilvayy@gmail.com* 3949 3950 * With Windows Visual Studio builds, the .pdb files are installed 3951 alongside the installed libraries and executables. For a static 3952 library installation, ossl_static.pdb is the associate compiler 3953 generated .pdb file to be used when linking programs. 3954 3955 *Richard Levitte* 3956 3957 * Remove openssl.spec. Packaging files belong with the packagers. 3958 3959 *Richard Levitte* 3960 3961 * Automatic Darwin/OSX configuration has had a refresh, it will now 3962 recognise x86_64 architectures automatically. You can still decide 3963 to build for a different bitness with the environment variable 3964 KERNEL_BITS (can be 32 or 64), for example: 3965 3966 KERNEL_BITS=32 ./config 3967 3968 *Richard Levitte* 3969 3970 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 3971 256 bit AES and HMAC with SHA256. 3972 3973 *Steve Henson* 3974 3975 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 3976 3977 *Andy Polyakov* 3978 3979 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 3980 3981 *Rich Salz* 3982 3983 * To enable users to have their own config files and build file templates, 3984 Configure looks in the directory indicated by the environment variable 3985 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 3986 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 3987 name and is used as is. 3988 3989 *Richard Levitte* 3990 3991 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 3992 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 3993 X509_CERT_FILE_CTX was removed. 3994 3995 *Rich Salz* 3996 3997 * "shared" builds are now the default. To create only static libraries use 3998 the "no-shared" Configure option. 3999 4000 *Matt Caswell* 4001 4002 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 4003 All of these option have not worked for some while and are fundamental 4004 algorithms. 4005 4006 *Matt Caswell* 4007 4008 * Make various cleanup routines no-ops and mark them as deprecated. Most 4009 global cleanup functions are no longer required because they are handled 4010 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 4011 Explicitly de-initing can cause problems (e.g. where a library that uses 4012 OpenSSL de-inits, but an application is still using it). The affected 4013 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 4014 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 4015 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 4016 COMP_zlib_cleanup(). 4017 4018 *Matt Caswell* 4019 4020 * --strict-warnings no longer enables runtime debugging options 4021 such as REF_DEBUG. Instead, debug options are automatically 4022 enabled with '--debug' builds. 4023 4024 *Andy Polyakov, Emilia Käsper* 4025 4026 * Made DH and DH_METHOD opaque. The structures for managing DH objects 4027 have been moved out of the public header files. New functions for managing 4028 these have been added. 4029 4030 *Matt Caswell* 4031 4032 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 4033 objects have been moved out of the public header files. New 4034 functions for managing these have been added. 4035 4036 *Richard Levitte* 4037 4038 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 4039 have been moved out of the public header files. New functions for managing 4040 these have been added. 4041 4042 *Matt Caswell* 4043 4044 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 4045 moved out of the public header files. New functions for managing these 4046 have been added. 4047 4048 *Matt Caswell* 4049 4050 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 4051 4052 *Matt Caswell* 4053 4054 * Removed the mk1mf build scripts. 4055 4056 *Richard Levitte* 4057 4058 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 4059 it is always safe to #include a header now. 4060 4061 *Rich Salz* 4062 4063 * Removed the aged BC-32 config and all its supporting scripts 4064 4065 *Richard Levitte* 4066 4067 * Removed support for Ultrix, Netware, and OS/2. 4068 4069 *Rich Salz* 4070 4071 * Add support for HKDF. 4072 4073 *Alessandro Ghedini* 4074 4075 * Add support for blake2b and blake2s 4076 4077 *Bill Cox* 4078 4079 * Added support for "pipelining". Ciphers that have the 4080 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 4081 encryptions/decryptions simultaneously. There are currently no built-in 4082 ciphers with this property but the expectation is that engines will be able 4083 to offer it to significantly improve throughput. Support has been extended 4084 into libssl so that multiple records for a single connection can be 4085 processed in one go (for >=TLS 1.1). 4086 4087 *Matt Caswell* 4088 4089 * Added the AFALG engine. This is an async capable engine which is able to 4090 offload work to the Linux kernel. In this initial version it only supports 4091 AES128-CBC. The kernel must be version 4.1.0 or greater. 4092 4093 *Catriona Lucey* 4094 4095 * OpenSSL now uses a new threading API. It is no longer necessary to 4096 set locking callbacks to use OpenSSL in a multi-threaded environment. There 4097 are two supported threading models: pthreads and windows threads. It is 4098 also possible to configure OpenSSL at compile time for "no-threads". The 4099 old threading API should no longer be used. The functions have been 4100 replaced with "no-op" compatibility macros. 4101 4102 *Alessandro Ghedini, Matt Caswell* 4103 4104 * Modify behavior of ALPN to invoke callback after SNI/servername 4105 callback, such that updates to the SSL_CTX affect ALPN. 4106 4107 *Todd Short* 4108 4109 * Add SSL_CIPHER queries for authentication and key-exchange. 4110 4111 *Todd Short* 4112 4113 * Changes to the DEFAULT cipherlist: 4114 - Prefer (EC)DHE handshakes over plain RSA. 4115 - Prefer AEAD ciphers over legacy ciphers. 4116 - Prefer ECDSA over RSA when both certificates are available. 4117 - Prefer TLSv1.2 ciphers/PRF. 4118 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 4119 default cipherlist. 4120 4121 *Emilia Käsper* 4122 4123 * Change the ECC default curve list to be this, in order: x25519, 4124 secp256r1, secp521r1, secp384r1. 4125 4126 *Rich Salz* 4127 4128 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 4129 disabled by default. They can be re-enabled using the 4130 enable-weak-ssl-ciphers option to Configure. 4131 4132 *Matt Caswell* 4133 4134 * If the server has ALPN configured, but supports no protocols that the 4135 client advertises, send a fatal "no_application_protocol" alert. 4136 This behaviour is SHALL in RFC 7301, though it isn't universally 4137 implemented by other servers. 4138 4139 *Emilia Käsper* 4140 4141 * Add X25519 support. 4142 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 4143 for public and private key encoding using the format documented in 4144 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 4145 key generation and key derivation. 4146 4147 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 4148 X25519(29). 4149 4150 *Steve Henson* 4151 4152 * Deprecate SRP_VBASE_get_by_user. 4153 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4154 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4155 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4156 seed, even if the seed is configured. 4157 4158 Users should use SRP_VBASE_get1_by_user instead. Note that in 4159 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4160 also that even though configuring the SRP seed attempts to hide 4161 invalid usernames by continuing the handshake with fake 4162 credentials, this behaviour is not constant time and no strong 4163 guarantees are made that the handshake is indistinguishable from 4164 that of a valid user. 4165 4166 *Emilia Käsper* 4167 4168 * Configuration change; it's now possible to build dynamic engines 4169 without having to build shared libraries and vice versa. This 4170 only applies to the engines in `engines/`, those in `crypto/engine/` 4171 will always be built into libcrypto (i.e. "static"). 4172 4173 Building dynamic engines is enabled by default; to disable, use 4174 the configuration option "disable-dynamic-engine". 4175 4176 The only requirements for building dynamic engines are the 4177 presence of the DSO module and building with position independent 4178 code, so they will also automatically be disabled if configuring 4179 with "disable-dso" or "disable-pic". 4180 4181 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4182 are also taken away from openssl/opensslconf.h, as they are 4183 irrelevant. 4184 4185 *Richard Levitte* 4186 4187 * Configuration change; if there is a known flag to compile 4188 position independent code, it will always be applied on the 4189 libcrypto and libssl object files, and never on the application 4190 object files. This means other libraries that use routines from 4191 libcrypto / libssl can be made into shared libraries regardless 4192 of how OpenSSL was configured. 4193 4194 If this isn't desirable, the configuration options "disable-pic" 4195 or "no-pic" can be used to disable the use of PIC. This will 4196 also disable building shared libraries and dynamic engines. 4197 4198 *Richard Levitte* 4199 4200 * Removed JPAKE code. It was experimental and has no wide use. 4201 4202 *Rich Salz* 4203 4204 * The INSTALL_PREFIX Makefile variable has been renamed to 4205 DESTDIR. That makes for less confusion on what this variable 4206 is for. Also, the configuration option --install_prefix is 4207 removed. 4208 4209 *Richard Levitte* 4210 4211 * Heartbeat for TLS has been removed and is disabled by default 4212 for DTLS; configure with enable-heartbeats. Code that uses the 4213 old #define's might need to be updated. 4214 4215 *Emilia Käsper, Rich Salz* 4216 4217 * Rename REF_CHECK to REF_DEBUG. 4218 4219 *Rich Salz* 4220 4221 * New "unified" build system 4222 4223 The "unified" build system is aimed to be a common system for all 4224 platforms we support. With it comes new support for VMS. 4225 4226 This system builds supports building in a different directory tree 4227 than the source tree. It produces one Makefile (for unix family 4228 or lookalikes), or one descrip.mms (for VMS). 4229 4230 The source of information to make the Makefile / descrip.mms is 4231 small files called 'build.info', holding the necessary 4232 information for each directory with source to compile, and a 4233 template in Configurations, like unix-Makefile.tmpl or 4234 descrip.mms.tmpl. 4235 4236 With this change, the library names were also renamed on Windows 4237 and on VMS. They now have names that are closer to the standard 4238 on Unix, and include the major version number, and in certain 4239 cases, the architecture they are built for. See "Notes on shared 4240 libraries" in INSTALL. 4241 4242 We rely heavily on the perl module Text::Template. 4243 4244 *Richard Levitte* 4245 4246 * Added support for auto-initialisation and de-initialisation of the library. 4247 OpenSSL no longer requires explicit init or deinit routines to be called, 4248 except in certain circumstances. See the OPENSSL_init_crypto() and 4249 OPENSSL_init_ssl() man pages for further information. 4250 4251 *Matt Caswell* 4252 4253 * The arguments to the DTLSv1_listen function have changed. Specifically the 4254 "peer" argument is now expected to be a BIO_ADDR object. 4255 4256 * Rewrite of BIO networking library. The BIO library lacked consistent 4257 support of IPv6, and adding it required some more extensive 4258 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4259 which hold all types of addresses and chains of address information. 4260 It also introduces a new API, with functions like BIO_socket, 4261 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4262 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4263 have been adapted accordingly. 4264 4265 *Richard Levitte* 4266 4267 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4268 the leading 0-byte. 4269 4270 *Emilia Käsper* 4271 4272 * CRIME protection: disable compression by default, even if OpenSSL is 4273 compiled with zlib enabled. Applications can still enable compression 4274 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4275 using the SSL_CONF library to configure compression. 4276 4277 *Emilia Käsper* 4278 4279 * The signature of the session callback configured with 4280 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4281 was explicitly marked as `const unsigned char*` instead of 4282 `unsigned char*`. 4283 4284 *Emilia Käsper* 4285 4286 * Always DPURIFY. Remove the use of uninitialized memory in the 4287 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4288 4289 *Emilia Käsper* 4290 4291 * Removed many obsolete configuration items, including 4292 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4293 MD2_CHAR, MD2_INT, MD2_LONG 4294 BF_PTR, BF_PTR2 4295 IDEA_SHORT, IDEA_LONG 4296 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4297 4298 *Rich Salz, with advice from Andy Polyakov* 4299 4300 * Many BN internals have been moved to an internal header file. 4301 4302 *Rich Salz with help from Andy Polyakov* 4303 4304 * Configuration and writing out the results from it has changed. 4305 Files such as Makefile include/openssl/opensslconf.h and are now 4306 produced through general templates, such as Makefile.in and 4307 crypto/opensslconf.h.in and some help from the perl module 4308 Text::Template. 4309 4310 Also, the center of configuration information is no longer 4311 Makefile. Instead, Configure produces a perl module in 4312 configdata.pm which holds most of the config data (in the hash 4313 table %config), the target data that comes from the target 4314 configuration in one of the `Configurations/*.conf` files (in 4315 %target). 4316 4317 *Richard Levitte* 4318 4319 * To clarify their intended purposes, the Configure options 4320 --prefix and --openssldir change their semantics, and become more 4321 straightforward and less interdependent. 4322 4323 --prefix shall be used exclusively to give the location INSTALLTOP 4324 where programs, scripts, libraries, include files and manuals are 4325 going to be installed. The default is now /usr/local. 4326 4327 --openssldir shall be used exclusively to give the default 4328 location OPENSSLDIR where certificates, private keys, CRLs are 4329 managed. This is also where the default openssl.cnf gets 4330 installed. 4331 If the directory given with this option is a relative path, the 4332 values of both the --prefix value and the --openssldir value will 4333 be combined to become OPENSSLDIR. 4334 The default for --openssldir is INSTALLTOP/ssl. 4335 4336 Anyone who uses --openssldir to specify where OpenSSL is to be 4337 installed MUST change to use --prefix instead. 4338 4339 *Richard Levitte* 4340 4341 * The GOST engine was out of date and therefore it has been removed. An up 4342 to date GOST engine is now being maintained in an external repository. 4343 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4344 support for GOST ciphersuites (these are only activated if a GOST engine 4345 is present). 4346 4347 *Matt Caswell* 4348 4349 * EGD is no longer supported by default; use enable-egd when 4350 configuring. 4351 4352 *Ben Kaduk and Rich Salz* 4353 4354 * The distribution now has Makefile.in files, which are used to 4355 create Makefile's when Configure is run. *Configure must be run 4356 before trying to build now.* 4357 4358 *Rich Salz* 4359 4360 * The return value for SSL_CIPHER_description() for error conditions 4361 has changed. 4362 4363 *Rich Salz* 4364 4365 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4366 4367 Obtaining and performing DNSSEC validation of TLSA records is 4368 the application's responsibility. The application provides 4369 the TLSA records of its choice to OpenSSL, and these are then 4370 used to authenticate the peer. 4371 4372 The TLSA records need not even come from DNS. They can, for 4373 example, be used to implement local end-entity certificate or 4374 trust-anchor "pinning", where the "pin" data takes the form 4375 of TLSA records, which can augment or replace verification 4376 based on the usual WebPKI public certification authorities. 4377 4378 *Viktor Dukhovni* 4379 4380 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4381 continues to support deprecated interfaces in default builds. 4382 However, applications are strongly advised to compile their 4383 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4384 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4385 or the 1.1.0 releases. 4386 4387 In environments in which all applications have been ported to 4388 not use any deprecated interfaces OpenSSL's Configure script 4389 should be used with the --api=1.1.0 option to entirely remove 4390 support for the deprecated features from the library and 4391 unconditionally disable them in the installed headers. 4392 Essentially the same effect can be achieved with the "no-deprecated" 4393 argument to Configure, except that this will always restrict 4394 the build to just the latest API, rather than a fixed API 4395 version. 4396 4397 As applications are ported to future revisions of the API, 4398 they should update their compile-time OPENSSL_API_COMPAT define 4399 accordingly, but in most cases should be able to continue to 4400 compile with later releases. 4401 4402 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4403 0x10000000L and 0x00908000L, respectively. However those 4404 versions did not support the OPENSSL_API_COMPAT feature, and 4405 so applications are not typically tested for explicit support 4406 of just the undeprecated features of either release. 4407 4408 *Viktor Dukhovni* 4409 4410 * Add support for setting the minimum and maximum supported protocol. 4411 It can bet set via the SSL_set_min_proto_version() and 4412 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4413 MaxProtocol. It's recommended to use the new APIs to disable 4414 protocols instead of disabling individual protocols using 4415 SSL_set_options() or SSL_CONF's Protocol. This change also 4416 removes support for disabling TLS 1.2 in the OpenSSL TLS 4417 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4418 4419 *Kurt Roeckx* 4420 4421 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4422 4423 *Andy Polyakov* 4424 4425 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4426 and integrates ECDSA and ECDH functionality into EC. Implementations can 4427 now redirect key generation and no longer need to convert to or from 4428 ECDSA_SIG format. 4429 4430 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4431 include the ec.h header file instead. 4432 4433 *Steve Henson* 4434 4435 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4436 ciphers who are no longer supported and drops support the ephemeral RSA key 4437 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4438 4439 *Kurt Roeckx* 4440 4441 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4442 opaque. For HMAC_CTX, the following constructors and destructors 4443 were added: 4444 4445 HMAC_CTX *HMAC_CTX_new(void); 4446 void HMAC_CTX_free(HMAC_CTX *ctx); 4447 4448 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4449 destroy such methods has been added. See EVP_MD_meth_new(3) and 4450 EVP_CIPHER_meth_new(3) for documentation. 4451 4452 Additional changes: 4453 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4454 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4455 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4456 an already created structure. 4457 2) For consistency with the majority of our object creators and 4458 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4459 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4460 for deprecated builds. 4461 4462 *Richard Levitte* 4463 4464 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4465 cryptographic operations to be performed asynchronously as long as an 4466 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4467 further details. Libssl has also had this capability integrated with the 4468 introduction of the new mode SSL_MODE_ASYNC and associated error 4469 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4470 pages. This work was developed in partnership with Intel Corp. 4471 4472 *Matt Caswell* 4473 4474 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4475 always enabled now. If you want to disable the support you should 4476 exclude it using the list of supported ciphers. This also means that the 4477 "-no_ecdhe" option has been removed from s_server. 4478 4479 *Kurt Roeckx* 4480 4481 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4482 SSL_{CTX_}set1_curves() which can set a list. 4483 4484 *Kurt Roeckx* 4485 4486 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4487 curve you want to support using SSL_{CTX_}set1_curves(). 4488 4489 *Kurt Roeckx* 4490 4491 * State machine rewrite. The state machine code has been significantly 4492 refactored in order to remove much duplication of code and solve issues 4493 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4494 further details). This change does have some associated API changes. 4495 Notably the SSL_state() function has been removed and replaced by 4496 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4497 SSL_set_state() has been removed altogether. The previous handshake states 4498 defined in ssl.h and ssl3.h have also been removed. 4499 4500 *Matt Caswell* 4501 4502 * All instances of the string "ssleay" in the public API were replaced 4503 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4504 Some error codes related to internal RSA_eay API's were renamed. 4505 4506 *Rich Salz* 4507 4508 * The demo files in crypto/threads were moved to demo/threads. 4509 4510 *Rich Salz* 4511 4512 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4513 sureware and ubsec. 4514 4515 *Matt Caswell, Rich Salz* 4516 4517 * New ASN.1 embed macro. 4518 4519 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4520 structure is not allocated: it is part of the parent. That is instead of 4521 4522 FOO *x; 4523 4524 it must be: 4525 4526 FOO x; 4527 4528 This reduces memory fragmentation and make it impossible to accidentally 4529 set a mandatory field to NULL. 4530 4531 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4532 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4533 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4534 SEQUENCE OF. 4535 4536 *Steve Henson* 4537 4538 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4539 4540 *Emilia Käsper* 4541 4542 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4543 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4544 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4545 DES and RC4 ciphersuites. 4546 4547 *Matt Caswell* 4548 4549 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4550 This changes the decoding behaviour for some invalid messages, 4551 though the change is mostly in the more lenient direction, and 4552 legacy behaviour is preserved as much as possible. 4553 4554 *Emilia Käsper* 4555 4556 * Fix no-stdio build. 4557 *David Woodhouse <David.Woodhouse@intel.com> and also* 4558 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4559 4560 * New testing framework 4561 The testing framework has been largely rewritten and is now using 4562 perl and the perl modules Test::Harness and an extended variant of 4563 Test::More called OpenSSL::Test to do its work. All test scripts in 4564 test/ have been rewritten into test recipes, and all direct calls to 4565 executables in test/Makefile have become individual recipes using the 4566 simplified testing OpenSSL::Test::Simple. 4567 4568 For documentation on our testing modules, do: 4569 4570 perldoc test/testlib/OpenSSL/Test/Simple.pm 4571 perldoc test/testlib/OpenSSL/Test.pm 4572 4573 *Richard Levitte* 4574 4575 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4576 are used; the latter aborts on memory leaks (usually checked on exit). 4577 Some undocumented "set malloc, etc., hooks" functions were removed 4578 and others were changed. All are now documented. 4579 4580 *Rich Salz* 4581 4582 * In DSA_generate_parameters_ex, if the provided seed is too short, 4583 return an error 4584 4585 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4586 4587 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4588 from RFC4279, RFC4785, RFC5487, RFC5489. 4589 4590 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4591 original RSA_PSK patch. 4592 4593 *Steve Henson* 4594 4595 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4596 era flag was never set throughout the codebase (only read). Also removed 4597 SSL3_FLAGS_POP_BUFFER which was only used if 4598 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4599 4600 *Matt Caswell* 4601 4602 * Changed the default name options in the "ca", "crl", "req" and "x509" 4603 to be "oneline" instead of "compat". 4604 4605 *Richard Levitte* 4606 4607 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4608 not aware of clients that still exhibit this bug, and the workaround 4609 hasn't been working properly for a while. 4610 4611 *Emilia Käsper* 4612 4613 * The return type of BIO_number_read() and BIO_number_written() as well as 4614 the corresponding num_read and num_write members in the BIO structure has 4615 changed from unsigned long to uint64_t. On platforms where an unsigned 4616 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4617 transferred. 4618 4619 *Matt Caswell* 4620 4621 * Given the pervasive nature of TLS extensions it is inadvisable to run 4622 OpenSSL without support for them. It also means that maintaining 4623 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4624 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4625 4626 *Matt Caswell* 4627 4628 * Removed support for the two export grade static DH ciphersuites 4629 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4630 were newly added (along with a number of other static DH ciphersuites) to 4631 1.0.2. However the two export ones have *never* worked since they were 4632 introduced. It seems strange in any case to be adding new export 4633 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4634 4635 *Matt Caswell* 4636 4637 * Version negotiation has been rewritten. In particular SSLv23_method(), 4638 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4639 and turned into macros which simply call the new preferred function names 4640 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4641 should use the new names instead. Also as part of this change the ssl23.h 4642 header file has been removed. 4643 4644 *Matt Caswell* 4645 4646 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4647 code and the associated standard is no longer considered fit-for-purpose. 4648 4649 *Matt Caswell* 4650 4651 * RT2547 was closed. When generating a private key, try to make the 4652 output file readable only by the owner. This behavior change might 4653 be noticeable when interacting with other software. 4654 4655 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4656 Added a test. 4657 4658 *Rich Salz* 4659 4660 * Added HTTP GET support to the ocsp command. 4661 4662 *Rich Salz* 4663 4664 * Changed default digest for the dgst and enc commands from MD5 to 4665 sha256 4666 4667 *Rich Salz* 4668 4669 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4670 4671 *Matt Caswell* 4672 4673 * Added support for TLS extended master secret from 4674 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4675 initial patch which was a great help during development. 4676 4677 *Steve Henson* 4678 4679 * All libssl internal structures have been removed from the public header 4680 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4681 now redundant). Users should not attempt to access internal structures 4682 directly. Instead they should use the provided API functions. 4683 4684 *Matt Caswell* 4685 4686 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4687 Access to deprecated functions can be re-enabled by running config with 4688 "enable-deprecated". In addition applications wishing to use deprecated 4689 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4690 will, by default, disable some transitive includes that previously existed 4691 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4692 4693 *Matt Caswell* 4694 4695 * Added support for OCB mode. OpenSSL has been granted a patent license 4696 compatible with the OpenSSL license for use of OCB. Details are available 4697 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4698 for OCB can be removed by calling config with no-ocb. 4699 4700 *Matt Caswell* 4701 4702 * SSLv2 support has been removed. It still supports receiving a SSLv2 4703 compatible client hello. 4704 4705 *Kurt Roeckx* 4706 4707 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4708 done while fixing the error code for the key-too-small case. 4709 4710 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4711 4712 * CA.sh has been removed; use CA.pl instead. 4713 4714 *Rich Salz* 4715 4716 * Removed old DES API. 4717 4718 *Rich Salz* 4719 4720 * Remove various unsupported platforms: 4721 Sony NEWS4 4722 BEOS and BEOS_R5 4723 NeXT 4724 SUNOS 4725 MPE/iX 4726 Sinix/ReliantUNIX RM400 4727 DGUX 4728 NCR 4729 Tandem 4730 Cray 4731 16-bit platforms such as WIN16 4732 4733 *Rich Salz* 4734 4735 * Clean up OPENSSL_NO_xxx #define's 4736 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4737 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4738 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4739 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4740 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4741 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4742 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4743 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4744 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4745 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4746 4747 *Rich Salz* 4748 4749 * Cleaned up dead code 4750 Remove all but one '#ifdef undef' which is to be looked at. 4751 4752 *Rich Salz* 4753 4754 * Clean up calling of xxx_free routines. 4755 Just like free(), fix most of the xxx_free routines to accept 4756 NULL. Remove the non-null checks from callers. Save much code. 4757 4758 *Rich Salz* 4759 4760 * Add secure heap for storage of private keys (when possible). 4761 Add BIO_s_secmem(), CBIGNUM, etc. 4762 Contributed by Akamai Technologies under our Corporate CLA. 4763 4764 *Rich Salz* 4765 4766 * Experimental support for a new, fast, unbiased prime candidate generator, 4767 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4768 4769 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4770 4771 * New output format NSS in the sess_id command line tool. This allows 4772 exporting the session id and the master key in NSS keylog format. 4773 4774 *Martin Kaiser <martin@kaiser.cx>* 4775 4776 * Harmonize version and its documentation. -f flag is used to display 4777 compilation flags. 4778 4779 *mancha <mancha1@zoho.com>* 4780 4781 * Fix eckey_priv_encode so it immediately returns an error upon a failure 4782 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 4783 4784 *mancha <mancha1@zoho.com>* 4785 4786 * Fix some double frees. These are not thought to be exploitable. 4787 4788 *mancha <mancha1@zoho.com>* 4789 4790 * A missing bounds check in the handling of the TLS heartbeat extension 4791 can be used to reveal up to 64k of memory to a connected client or 4792 server. 4793 4794 Thanks for Neel Mehta of Google Security for discovering this bug and to 4795 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4796 preparing the fix ([CVE-2014-0160]) 4797 4798 *Adam Langley, Bodo Moeller* 4799 4800 * Fix for the attack described in the paper "Recovering OpenSSL 4801 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4802 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4803 <http://eprint.iacr.org/2014/140> 4804 4805 Thanks to Yuval Yarom and Naomi Benger for discovering this 4806 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 4807 4808 *Yuval Yarom and Naomi Benger* 4809 4810 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 4811 this fixes a limitation in previous versions of OpenSSL. 4812 4813 *Steve Henson* 4814 4815 * Experimental encrypt-then-mac support. 4816 4817 Experimental support for encrypt then mac from 4818 draft-gutmann-tls-encrypt-then-mac-02.txt 4819 4820 To enable it set the appropriate extension number (0x42 for the test 4821 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 4822 4823 For non-compliant peers (i.e. just about everything) this should have no 4824 effect. 4825 4826 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 4827 4828 *Steve Henson* 4829 4830 * Add EVP support for key wrapping algorithms, to avoid problems with 4831 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 4832 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 4833 algorithms and include tests cases. 4834 4835 *Steve Henson* 4836 4837 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 4838 enveloped data. 4839 4840 *Steve Henson* 4841 4842 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 4843 MGF1 digest and OAEP label. 4844 4845 *Steve Henson* 4846 4847 * Make openssl verify return errors. 4848 4849 *Chris Palmer <palmer@google.com> and Ben Laurie* 4850 4851 * New function ASN1_TIME_diff to calculate the difference between two 4852 ASN1_TIME structures or one structure and the current time. 4853 4854 *Steve Henson* 4855 4856 * Update fips_test_suite to support multiple command line options. New 4857 test to induce all self test errors in sequence and check expected 4858 failures. 4859 4860 *Steve Henson* 4861 4862 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 4863 sign or verify all in one operation. 4864 4865 *Steve Henson* 4866 4867 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 4868 test programs and fips_test_suite. Includes functionality to parse 4869 the minimal script output of fipsalgest.pl directly. 4870 4871 *Steve Henson* 4872 4873 * Add authorisation parameter to FIPS_module_mode_set(). 4874 4875 *Steve Henson* 4876 4877 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 4878 4879 *Steve Henson* 4880 4881 * Use separate DRBG fields for internal and external flags. New function 4882 FIPS_drbg_health_check() to perform on demand health checking. Add 4883 generation tests to fips_test_suite with reduced health check interval to 4884 demonstrate periodic health checking. Add "nodh" option to 4885 fips_test_suite to skip very slow DH test. 4886 4887 *Steve Henson* 4888 4889 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 4890 based on NID. 4891 4892 *Steve Henson* 4893 4894 * More extensive health check for DRBG checking many more failure modes. 4895 New function FIPS_selftest_drbg_all() to handle every possible DRBG 4896 combination: call this in fips_test_suite. 4897 4898 *Steve Henson* 4899 4900 * Add support for canonical generation of DSA parameter 'g'. See 4901 FIPS 186-3 A.2.3. 4902 4903 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 4904 POST to handle HMAC cases. 4905 4906 *Steve Henson* 4907 4908 * Add functions FIPS_module_version() and FIPS_module_version_text() 4909 to return numerical and string versions of the FIPS module number. 4910 4911 *Steve Henson* 4912 4913 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 4914 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 4915 outside the validated module in the FIPS capable OpenSSL. 4916 4917 *Steve Henson* 4918 4919 * Minor change to DRBG entropy callback semantics. In some cases 4920 there is no multiple of the block length between min_len and 4921 max_len. Allow the callback to return more than max_len bytes 4922 of entropy but discard any extra: it is the callback's responsibility 4923 to ensure that the extra data discarded does not impact the 4924 requested amount of entropy. 4925 4926 *Steve Henson* 4927 4928 * Add PRNG security strength checks to RSA, DSA and ECDSA using 4929 information in FIPS186-3, SP800-57 and SP800-131A. 4930 4931 *Steve Henson* 4932 4933 * CCM support via EVP. Interface is very similar to GCM case except we 4934 must supply all data in one chunk (i.e. no update, final) and the 4935 message length must be supplied if AAD is used. Add algorithm test 4936 support. 4937 4938 *Steve Henson* 4939 4940 * Initial version of POST overhaul. Add POST callback to allow the status 4941 of POST to be monitored and/or failures induced. Modify fips_test_suite 4942 to use callback. Always run all selftests even if one fails. 4943 4944 *Steve Henson* 4945 4946 * XTS support including algorithm test driver in the fips_gcmtest program. 4947 Note: this does increase the maximum key length from 32 to 64 bytes but 4948 there should be no binary compatibility issues as existing applications 4949 will never use XTS mode. 4950 4951 *Steve Henson* 4952 4953 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 4954 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 4955 performs algorithm blocking for unapproved PRNG types. Also do not 4956 set PRNG type in FIPS_mode_set(): leave this to the application. 4957 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 4958 the standard OpenSSL PRNG: set additional data to a date time vector. 4959 4960 *Steve Henson* 4961 4962 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 4963 This shouldn't present any incompatibility problems because applications 4964 shouldn't be using these directly and any that are will need to rethink 4965 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 4966 4967 *Steve Henson* 4968 4969 * Extensive self tests and health checking required by SP800-90 DRBG. 4970 Remove strength parameter from FIPS_drbg_instantiate and always 4971 instantiate at maximum supported strength. 4972 4973 *Steve Henson* 4974 4975 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 4976 4977 *Steve Henson* 4978 4979 * New algorithm test program fips_dhvs to handle DH primitives only testing. 4980 4981 *Steve Henson* 4982 4983 * New function DH_compute_key_padded() to compute a DH key and pad with 4984 leading zeroes if needed: this complies with SP800-56A et al. 4985 4986 *Steve Henson* 4987 4988 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 4989 anything, incomplete, subject to change and largely untested at present. 4990 4991 *Steve Henson* 4992 4993 * Modify fipscanisteronly build option to only build the necessary object 4994 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 4995 4996 *Steve Henson* 4997 4998 * Add experimental option FIPSSYMS to give all symbols in 4999 fipscanister.o and FIPS or fips prefix. This will avoid 5000 conflicts with future versions of OpenSSL. Add perl script 5001 util/fipsas.pl to preprocess assembly language source files 5002 and rename any affected symbols. 5003 5004 *Steve Henson* 5005 5006 * Add selftest checks and algorithm block of non-fips algorithms in 5007 FIPS mode. Remove DES2 from selftests. 5008 5009 *Steve Henson* 5010 5011 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 5012 return internal method without any ENGINE dependencies. Add new 5013 tiny fips sign and verify functions. 5014 5015 *Steve Henson* 5016 5017 * New build option no-ec2m to disable characteristic 2 code. 5018 5019 *Steve Henson* 5020 5021 * New build option "fipscanisteronly". This only builds fipscanister.o 5022 and (currently) associated fips utilities. Uses the file Makefile.fips 5023 instead of Makefile.org as the prototype. 5024 5025 *Steve Henson* 5026 5027 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 5028 Update fips_gcmtest to use IV generator. 5029 5030 *Steve Henson* 5031 5032 * Initial, experimental EVP support for AES-GCM. AAD can be input by 5033 setting output buffer to NULL. The `*Final` function must be 5034 called although it will not retrieve any additional data. The tag 5035 can be set or retrieved with a ctrl. The IV length is by default 12 5036 bytes (96 bits) but can be set to an alternative value. If the IV 5037 length exceeds the maximum IV length (currently 16 bytes) it cannot be 5038 set before the key. 5039 5040 *Steve Henson* 5041 5042 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 5043 underlying do_cipher function handles all cipher semantics itself 5044 including padding and finalisation. This is useful if (for example) 5045 an ENGINE cipher handles block padding itself. The behaviour of 5046 do_cipher is subtly changed if this flag is set: the return value 5047 is the number of characters written to the output buffer (zero is 5048 no longer an error code) or a negative error code. Also if the 5049 input buffer is NULL and length 0 finalisation should be performed. 5050 5051 *Steve Henson* 5052 5053 * If a candidate issuer certificate is already part of the constructed 5054 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 5055 5056 *Steve Henson* 5057 5058 * Improve forward-security support: add functions 5059 5060 void SSL_CTX_set_not_resumable_session_callback( 5061 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 5062 void SSL_set_not_resumable_session_callback( 5063 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 5064 5065 for use by SSL/TLS servers; the callback function will be called whenever a 5066 new session is created, and gets to decide whether the session may be 5067 cached to make it resumable (return 0) or not (return 1). (As by the 5068 SSL/TLS protocol specifications, the session_id sent by the server will be 5069 empty to indicate that the session is not resumable; also, the server will 5070 not generate RFC 4507 (RFC 5077) session tickets.) 5071 5072 A simple reasonable callback implementation is to return is_forward_secure. 5073 This parameter will be set to 1 or 0 depending on the ciphersuite selected 5074 by the SSL/TLS server library, indicating whether it can provide forward 5075 security. 5076 5077 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 5078 5079 * New -verify_name option in command line utilities to set verification 5080 parameters by name. 5081 5082 *Steve Henson* 5083 5084 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 5085 Add CMAC pkey methods. 5086 5087 *Steve Henson* 5088 5089 * Experimental renegotiation in s_server -www mode. If the client 5090 browses /reneg connection is renegotiated. If /renegcert it is 5091 renegotiated requesting a certificate. 5092 5093 *Steve Henson* 5094 5095 * Add an "external" session cache for debugging purposes to s_server. This 5096 should help trace issues which normally are only apparent in deployed 5097 multi-process servers. 5098 5099 *Steve Henson* 5100 5101 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 5102 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 5103 BIO_set_cipher() and some obscure PEM functions were changed so they 5104 can now return an error. The RAND changes required a change to the 5105 RAND_METHOD structure. 5106 5107 *Steve Henson* 5108 5109 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 5110 a gcc attribute to warn if the result of a function is ignored. This 5111 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 5112 whose return value is often ignored. 5113 5114 *Steve Henson* 5115 5116 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 5117 These allow SCTs (signed certificate timestamps) to be requested and 5118 validated when establishing a connection. 5119 5120 *Rob Percival <robpercival@google.com>* 5121 5122OpenSSL 1.0.2 5123------------- 5124 5125### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 5126 5127 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 5128 used even when parsing explicit parameters, when loading a encoded key 5129 or calling `EC_GROUP_new_from_ecpkparameters()`/ 5130 `EC_GROUP_new_from_ecparameters()`. 5131 This prevents bypass of security hardening and performance gains, 5132 especially for curves with specialized EC_METHODs. 5133 By default, if a key encoded with explicit parameters is loaded and later 5134 encoded, the output is still encoded with explicit parameters, even if 5135 internally a "named" EC_GROUP is used for computation. 5136 5137 *Nicola Tuveri* 5138 5139 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 5140 this change, EC_GROUP_set_generator would accept order and/or cofactor as 5141 NULL. After this change, only the cofactor parameter can be NULL. It also 5142 does some minimal sanity checks on the passed order. 5143 ([CVE-2019-1547]) 5144 5145 *Billy Bob Brumley* 5146 5147 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 5148 An attack is simple, if the first CMS_recipientInfo is valid but the 5149 second CMS_recipientInfo is chosen ciphertext. If the second 5150 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 5151 encryption key will be replaced by garbage, and the message cannot be 5152 decoded, but if the RSA decryption fails, the correct encryption key is 5153 used and the recipient will not notice the attack. 5154 As a work around for this potential attack the length of the decrypted 5155 key must be equal to the cipher default key length, in case the 5156 certifiate is not given and all recipientInfo are tried out. 5157 The old behaviour can be re-enabled in the CMS code by setting the 5158 CMS_DEBUG_DECRYPT flag. 5159 ([CVE-2019-1563]) 5160 5161 *Bernd Edlinger* 5162 5163 * Document issue with installation paths in diverse Windows builds 5164 5165 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5166 binaries and run-time config file. 5167 ([CVE-2019-1552]) 5168 5169 *Richard Levitte* 5170 5171### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5172 5173 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5174 This changes the size when using the `genpkey` command when no size is given. 5175 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5176 generation commands to use 2048 bits by default. 5177 5178 *Kurt Roeckx* 5179 5180 * Add FIPS support for Android Arm 64-bit 5181 5182 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5183 Module in Version 2.0.10. For some reason, the corresponding target 5184 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5185 built with FIPS support on Android Arm 64-bit. This omission has been 5186 fixed. 5187 5188 *Matthias St. Pierre* 5189 5190### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5191 5192 * 0-byte record padding oracle 5193 5194 If an application encounters a fatal protocol error and then calls 5195 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5196 then OpenSSL can respond differently to the calling application if a 0 byte 5197 record is received with invalid padding compared to if a 0 byte record is 5198 received with an invalid MAC. If the application then behaves differently 5199 based on that in a way that is detectable to the remote peer, then this 5200 amounts to a padding oracle that could be used to decrypt data. 5201 5202 In order for this to be exploitable "non-stitched" ciphersuites must be in 5203 use. Stitched ciphersuites are optimised implementations of certain 5204 commonly used ciphersuites. Also the application must call SSL_shutdown() 5205 twice even if a protocol error has occurred (applications should not do 5206 this but some do anyway). 5207 5208 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5209 Aviram, with additional investigation by Steven Collison and Andrew 5210 Hourselt. It was reported to OpenSSL on 10th December 2018. 5211 ([CVE-2019-1559]) 5212 5213 *Matt Caswell* 5214 5215 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5216 5217 *Richard Levitte* 5218 5219### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5220 5221 * Microarchitecture timing vulnerability in ECC scalar multiplication 5222 5223 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5224 shown to be vulnerable to a microarchitecture timing side channel attack. 5225 An attacker with sufficient access to mount local timing attacks during 5226 ECDSA signature generation could recover the private key. 5227 5228 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5229 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5230 Nicola Tuveri. 5231 ([CVE-2018-5407]) 5232 5233 *Billy Brumley* 5234 5235 * Timing vulnerability in DSA signature generation 5236 5237 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5238 timing side channel attack. An attacker could use variations in the signing 5239 algorithm to recover the private key. 5240 5241 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5242 ([CVE-2018-0734]) 5243 5244 *Paul Dale* 5245 5246 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5247 Module, accidentally introduced while backporting security fixes from the 5248 development branch and hindering the use of ECC in FIPS mode. 5249 5250 *Nicola Tuveri* 5251 5252### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5253 5254 * Client DoS due to large DH parameter 5255 5256 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5257 malicious server can send a very large prime value to the client. This will 5258 cause the client to spend an unreasonably long period of time generating a 5259 key for this prime resulting in a hang until the client has finished. This 5260 could be exploited in a Denial Of Service attack. 5261 5262 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5263 ([CVE-2018-0732]) 5264 5265 *Guido Vranken* 5266 5267 * Cache timing vulnerability in RSA Key Generation 5268 5269 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5270 a cache timing side channel attack. An attacker with sufficient access to 5271 mount cache timing attacks during the RSA key generation process could 5272 recover the private key. 5273 5274 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5275 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5276 ([CVE-2018-0737]) 5277 5278 *Billy Brumley* 5279 5280 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5281 parameter is no longer accepted, as it leads to a corrupt table. NULL 5282 pem_str is reserved for alias entries only. 5283 5284 *Richard Levitte* 5285 5286 * Revert blinding in ECDSA sign and instead make problematic addition 5287 length-invariant. Switch even to fixed-length Montgomery multiplication. 5288 5289 *Andy Polyakov* 5290 5291 * Change generating and checking of primes so that the error rate of not 5292 being prime depends on the intended use based on the size of the input. 5293 For larger primes this will result in more rounds of Miller-Rabin. 5294 The maximal error rate for primes with more than 1080 bits is lowered 5295 to 2^-128. 5296 5297 *Kurt Roeckx, Annie Yousar* 5298 5299 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5300 5301 *Kurt Roeckx* 5302 5303 * Add blinding to ECDSA and DSA signatures to protect against side channel 5304 attacks discovered by Keegan Ryan (NCC Group). 5305 5306 *Matt Caswell* 5307 5308 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5309 now allow empty (zero character) pass phrases. 5310 5311 *Richard Levitte* 5312 5313 * Certificate time validation (X509_cmp_time) enforces stricter 5314 compliance with RFC 5280. Fractional seconds and timezone offsets 5315 are no longer allowed. 5316 5317 *Emilia Käsper* 5318 5319### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5320 5321 * Constructed ASN.1 types with a recursive definition could exceed the stack 5322 5323 Constructed ASN.1 types with a recursive definition (such as can be found 5324 in PKCS7) could eventually exceed the stack given malicious input with 5325 excessive recursion. This could result in a Denial Of Service attack. There 5326 are no such structures used within SSL/TLS that come from untrusted sources 5327 so this is considered safe. 5328 5329 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5330 project. 5331 ([CVE-2018-0739]) 5332 5333 *Matt Caswell* 5334 5335### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5336 5337 * Read/write after SSL object in error state 5338 5339 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5340 mechanism. The intent was that if a fatal error occurred during a handshake 5341 then OpenSSL would move into the error state and would immediately fail if 5342 you attempted to continue the handshake. This works as designed for the 5343 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5344 SSL_connect()), however due to a bug it does not work correctly if 5345 SSL_read() or SSL_write() is called directly. In that scenario, if the 5346 handshake fails then a fatal error will be returned in the initial function 5347 call. If SSL_read()/SSL_write() is subsequently called by the application 5348 for the same SSL object then it will succeed and the data is passed without 5349 being decrypted/encrypted directly from the SSL/TLS record layer. 5350 5351 In order to exploit this issue an application bug would have to be present 5352 that resulted in a call to SSL_read()/SSL_write() being issued after having 5353 already received a fatal error. 5354 5355 This issue was reported to OpenSSL by David Benjamin (Google). 5356 ([CVE-2017-3737]) 5357 5358 *Matt Caswell* 5359 5360 * rsaz_1024_mul_avx2 overflow bug on x86_64 5361 5362 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5363 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5364 Analysis suggests that attacks against RSA and DSA as a result of this 5365 defect would be very difficult to perform and are not believed likely. 5366 Attacks against DH1024 are considered just feasible, because most of the 5367 work necessary to deduce information about a private key may be performed 5368 offline. The amount of resources required for such an attack would be 5369 significant. However, for an attack on TLS to be meaningful, the server 5370 would have to share the DH1024 private key among multiple clients, which is 5371 no longer an option since CVE-2016-0701. 5372 5373 This only affects processors that support the AVX2 but not ADX extensions 5374 like Intel Haswell (4th generation). 5375 5376 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5377 was originally found via the OSS-Fuzz project. 5378 ([CVE-2017-3738]) 5379 5380 *Andy Polyakov* 5381 5382### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5383 5384 * bn_sqrx8x_internal carry bug on x86_64 5385 5386 There is a carry propagating bug in the x86_64 Montgomery squaring 5387 procedure. No EC algorithms are affected. Analysis suggests that attacks 5388 against RSA and DSA as a result of this defect would be very difficult to 5389 perform and are not believed likely. Attacks against DH are considered just 5390 feasible (although very difficult) because most of the work necessary to 5391 deduce information about a private key may be performed offline. The amount 5392 of resources required for such an attack would be very significant and 5393 likely only accessible to a limited number of attackers. An attacker would 5394 additionally need online access to an unpatched system using the target 5395 private key in a scenario with persistent DH parameters and a private 5396 key that is shared between multiple clients. 5397 5398 This only affects processors that support the BMI1, BMI2 and ADX extensions 5399 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5400 5401 This issue was reported to OpenSSL by the OSS-Fuzz project. 5402 ([CVE-2017-3736]) 5403 5404 *Andy Polyakov* 5405 5406 * Malformed X.509 IPAddressFamily could cause OOB read 5407 5408 If an X.509 certificate has a malformed IPAddressFamily extension, 5409 OpenSSL could do a one-byte buffer overread. The most likely result 5410 would be an erroneous display of the certificate in text format. 5411 5412 This issue was reported to OpenSSL by the OSS-Fuzz project. 5413 5414 *Rich Salz* 5415 5416### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5417 5418 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5419 platform rather than 'mingw'. 5420 5421 *Richard Levitte* 5422 5423### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5424 5425 * Truncated packet could crash via OOB read 5426 5427 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5428 cipher is being used, then a truncated packet can cause that host to 5429 perform an out-of-bounds read, usually resulting in a crash. 5430 5431 This issue was reported to OpenSSL by Robert Święcki of Google. 5432 ([CVE-2017-3731]) 5433 5434 *Andy Polyakov* 5435 5436 * BN_mod_exp may produce incorrect results on x86_64 5437 5438 There is a carry propagating bug in the x86_64 Montgomery squaring 5439 procedure. No EC algorithms are affected. Analysis suggests that attacks 5440 against RSA and DSA as a result of this defect would be very difficult to 5441 perform and are not believed likely. Attacks against DH are considered just 5442 feasible (although very difficult) because most of the work necessary to 5443 deduce information about a private key may be performed offline. The amount 5444 of resources required for such an attack would be very significant and 5445 likely only accessible to a limited number of attackers. An attacker would 5446 additionally need online access to an unpatched system using the target 5447 private key in a scenario with persistent DH parameters and a private 5448 key that is shared between multiple clients. For example this can occur by 5449 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5450 similar to CVE-2015-3193 but must be treated as a separate problem. 5451 5452 This issue was reported to OpenSSL by the OSS-Fuzz project. 5453 ([CVE-2017-3732]) 5454 5455 *Andy Polyakov* 5456 5457 * Montgomery multiplication may produce incorrect results 5458 5459 There is a carry propagating bug in the Broadwell-specific Montgomery 5460 multiplication procedure that handles input lengths divisible by, but 5461 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5462 and DH private keys are impossible. This is because the subroutine in 5463 question is not used in operations with the private key itself and an input 5464 of the attacker's direct choice. Otherwise the bug can manifest itself as 5465 transient authentication and key negotiation failures or reproducible 5466 erroneous outcome of public-key operations with specially crafted input. 5467 Among EC algorithms only Brainpool P-512 curves are affected and one 5468 presumably can attack ECDH key negotiation. Impact was not analyzed in 5469 detail, because pre-requisites for attack are considered unlikely. Namely 5470 multiple clients have to choose the curve in question and the server has to 5471 share the private key among them, neither of which is default behaviour. 5472 Even then only clients that chose the curve will be affected. 5473 5474 This issue was publicly reported as transient failures and was not 5475 initially recognized as a security issue. Thanks to Richard Morgan for 5476 providing reproducible case. 5477 ([CVE-2016-7055]) 5478 5479 *Andy Polyakov* 5480 5481 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5482 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5483 prevent issues where no progress is being made and the peer continually 5484 sends unrecognised record types, using up resources processing them. 5485 5486 *Matt Caswell* 5487 5488### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5489 5490 * Missing CRL sanity check 5491 5492 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5493 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5494 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5495 5496 This issue only affects the OpenSSL 1.0.2i 5497 ([CVE-2016-7052]) 5498 5499 *Matt Caswell* 5500 5501### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5502 5503 * OCSP Status Request extension unbounded memory growth 5504 5505 A malicious client can send an excessively large OCSP Status Request 5506 extension. If that client continually requests renegotiation, sending a 5507 large OCSP Status Request extension each time, then there will be unbounded 5508 memory growth on the server. This will eventually lead to a Denial Of 5509 Service attack through memory exhaustion. Servers with a default 5510 configuration are vulnerable even if they do not support OCSP. Builds using 5511 the "no-ocsp" build time option are not affected. 5512 5513 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5514 ([CVE-2016-6304]) 5515 5516 *Matt Caswell* 5517 5518 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5519 HIGH to MEDIUM. 5520 5521 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5522 Leurent (INRIA) 5523 ([CVE-2016-2183]) 5524 5525 *Rich Salz* 5526 5527 * OOB write in MDC2_Update() 5528 5529 An overflow can occur in MDC2_Update() either if called directly or 5530 through the EVP_DigestUpdate() function using MDC2. If an attacker 5531 is able to supply very large amounts of input data after a previous 5532 call to EVP_EncryptUpdate() with a partial block then a length check 5533 can overflow resulting in a heap corruption. 5534 5535 The amount of data needed is comparable to SIZE_MAX which is impractical 5536 on most platforms. 5537 5538 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5539 ([CVE-2016-6303]) 5540 5541 *Stephen Henson* 5542 5543 * Malformed SHA512 ticket DoS 5544 5545 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5546 DoS attack where a malformed ticket will result in an OOB read which will 5547 ultimately crash. 5548 5549 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5550 a custom server callback and ticket lookup mechanism. 5551 5552 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5553 ([CVE-2016-6302]) 5554 5555 *Stephen Henson* 5556 5557 * OOB write in BN_bn2dec() 5558 5559 The function BN_bn2dec() does not check the return value of BN_div_word(). 5560 This can cause an OOB write if an application uses this function with an 5561 overly large BIGNUM. This could be a problem if an overly large certificate 5562 or CRL is printed out from an untrusted source. TLS is not affected because 5563 record limits will reject an oversized certificate before it is parsed. 5564 5565 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5566 ([CVE-2016-2182]) 5567 5568 *Stephen Henson* 5569 5570 * OOB read in TS_OBJ_print_bio() 5571 5572 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5573 the total length the OID text representation would use and not the amount 5574 of data written. This will result in OOB reads when large OIDs are 5575 presented. 5576 5577 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5578 ([CVE-2016-2180]) 5579 5580 *Stephen Henson* 5581 5582 * Pointer arithmetic undefined behaviour 5583 5584 Avoid some undefined pointer arithmetic 5585 5586 A common idiom in the codebase is to check limits in the following manner: 5587 "p + len > limit" 5588 5589 Where "p" points to some malloc'd data of SIZE bytes and 5590 limit == p + SIZE 5591 5592 "len" here could be from some externally supplied data (e.g. from a TLS 5593 message). 5594 5595 The rules of C pointer arithmetic are such that "p + len" is only well 5596 defined where len <= SIZE. Therefore the above idiom is actually 5597 undefined behaviour. 5598 5599 For example this could cause problems if some malloc implementation 5600 provides an address for "p" such that "p + len" actually overflows for 5601 values of len that are too big and therefore p + len < limit. 5602 5603 This issue was reported to OpenSSL by Guido Vranken 5604 ([CVE-2016-2177]) 5605 5606 *Matt Caswell* 5607 5608 * Constant time flag not preserved in DSA signing 5609 5610 Operations in the DSA signing algorithm should run in constant time in 5611 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5612 implementation means that a non-constant time codepath is followed for 5613 certain operations. This has been demonstrated through a cache-timing 5614 attack to be sufficient for an attacker to recover the private DSA key. 5615 5616 This issue was reported by César Pereida (Aalto University), Billy Brumley 5617 (Tampere University of Technology), and Yuval Yarom (The University of 5618 Adelaide and NICTA). 5619 ([CVE-2016-2178]) 5620 5621 *César Pereida* 5622 5623 * DTLS buffered message DoS 5624 5625 In a DTLS connection where handshake messages are delivered out-of-order 5626 those messages that OpenSSL is not yet ready to process will be buffered 5627 for later use. Under certain circumstances, a flaw in the logic means that 5628 those messages do not get removed from the buffer even though the handshake 5629 has been completed. An attacker could force up to approx. 15 messages to 5630 remain in the buffer when they are no longer required. These messages will 5631 be cleared when the DTLS connection is closed. The default maximum size for 5632 a message is 100k. Therefore the attacker could force an additional 1500k 5633 to be consumed per connection. By opening many simulataneous connections an 5634 attacker could cause a DoS attack through memory exhaustion. 5635 5636 This issue was reported to OpenSSL by Quan Luo. 5637 ([CVE-2016-2179]) 5638 5639 *Matt Caswell* 5640 5641 * DTLS replay protection DoS 5642 5643 A flaw in the DTLS replay attack protection mechanism means that records 5644 that arrive for future epochs update the replay protection "window" before 5645 the MAC for the record has been validated. This could be exploited by an 5646 attacker by sending a record for the next epoch (which does not have to 5647 decrypt or have a valid MAC), with a very large sequence number. This means 5648 that all subsequent legitimate packets are dropped causing a denial of 5649 service for a specific DTLS connection. 5650 5651 This issue was reported to OpenSSL by the OCAP audit team. 5652 ([CVE-2016-2181]) 5653 5654 *Matt Caswell* 5655 5656 * Certificate message OOB reads 5657 5658 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5659 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5660 theoretical DoS risk but this has not been observed in practice on common 5661 platforms. 5662 5663 The messages affected are client certificate, client certificate request 5664 and server certificate. As a result the attack can only be performed 5665 against a client or a server which enables client authentication. 5666 5667 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5668 ([CVE-2016-6306]) 5669 5670 *Stephen Henson* 5671 5672### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5673 5674 * Prevent padding oracle in AES-NI CBC MAC check 5675 5676 A MITM attacker can use a padding oracle attack to decrypt traffic 5677 when the connection uses an AES CBC cipher and the server support 5678 AES-NI. 5679 5680 This issue was introduced as part of the fix for Lucky 13 padding 5681 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5682 constant time by making sure that always the same bytes are read and 5683 compared against either the MAC or padding bytes. But it no longer 5684 checked that there was enough data to have both the MAC and padding 5685 bytes. 5686 5687 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5688 5689 *Kurt Roeckx* 5690 5691 * Fix EVP_EncodeUpdate overflow 5692 5693 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5694 Base64 encoding of binary data. If an attacker is able to supply very large 5695 amounts of input data then a length check can overflow resulting in a heap 5696 corruption. 5697 5698 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5699 the `PEM_write_bio*` family of functions. These are mainly used within the 5700 OpenSSL command line applications, so any application which processes data 5701 from an untrusted source and outputs it as a PEM file should be considered 5702 vulnerable to this issue. User applications that call these APIs directly 5703 with large amounts of untrusted data may also be vulnerable. 5704 5705 This issue was reported by Guido Vranken. 5706 ([CVE-2016-2105]) 5707 5708 *Matt Caswell* 5709 5710 * Fix EVP_EncryptUpdate overflow 5711 5712 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5713 is able to supply very large amounts of input data after a previous call to 5714 EVP_EncryptUpdate() with a partial block then a length check can overflow 5715 resulting in a heap corruption. Following an analysis of all OpenSSL 5716 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5717 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5718 the first called function after an EVP_EncryptInit(), and therefore that 5719 specific call must be safe. The second form is where the length passed to 5720 EVP_EncryptUpdate() can be seen from the code to be some small value and 5721 therefore there is no possibility of an overflow. Since all instances are 5722 one of these two forms, it is believed that there can be no overflows in 5723 internal code due to this problem. It should be noted that 5724 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5725 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5726 of these calls have also been analysed too and it is believed there are no 5727 instances in internal usage where an overflow could occur. 5728 5729 This issue was reported by Guido Vranken. 5730 ([CVE-2016-2106]) 5731 5732 *Matt Caswell* 5733 5734 * Prevent ASN.1 BIO excessive memory allocation 5735 5736 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5737 a short invalid encoding can cause allocation of large amounts of memory 5738 potentially consuming excessive resources or exhausting memory. 5739 5740 Any application parsing untrusted data through d2i BIO functions is 5741 affected. The memory based functions such as d2i_X509() are *not* affected. 5742 Since the memory based functions are used by the TLS library, TLS 5743 applications are not affected. 5744 5745 This issue was reported by Brian Carpenter. 5746 ([CVE-2016-2109]) 5747 5748 *Stephen Henson* 5749 5750 * EBCDIC overread 5751 5752 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5753 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5754 in arbitrary stack data being returned in the buffer. 5755 5756 This issue was reported by Guido Vranken. 5757 ([CVE-2016-2176]) 5758 5759 *Matt Caswell* 5760 5761 * Modify behavior of ALPN to invoke callback after SNI/servername 5762 callback, such that updates to the SSL_CTX affect ALPN. 5763 5764 *Todd Short* 5765 5766 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5767 default. 5768 5769 *Kurt Roeckx* 5770 5771 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5772 methods are enabled and ssl2 is disabled the methods return NULL. 5773 5774 *Kurt Roeckx* 5775 5776### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5777 5778* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 5779 Builds that are not configured with "enable-weak-ssl-ciphers" will not 5780 provide any "EXPORT" or "LOW" strength ciphers. 5781 5782 *Viktor Dukhovni* 5783 5784* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 5785 is by default disabled at build-time. Builds that are not configured with 5786 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 5787 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 5788 will need to explicitly call either of: 5789 5790 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 5791 or 5792 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 5793 5794 as appropriate. Even if either of those is used, or the application 5795 explicitly uses the version-specific SSLv2_method() or its client and 5796 server variants, SSLv2 ciphers vulnerable to exhaustive search key 5797 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 5798 ciphers, and SSLv2 56-bit DES are no longer available. 5799 ([CVE-2016-0800]) 5800 5801 *Viktor Dukhovni* 5802 5803 * Fix a double-free in DSA code 5804 5805 A double free bug was discovered when OpenSSL parses malformed DSA private 5806 keys and could lead to a DoS attack or memory corruption for applications 5807 that receive DSA private keys from untrusted sources. This scenario is 5808 considered rare. 5809 5810 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 5811 libFuzzer. 5812 ([CVE-2016-0705]) 5813 5814 *Stephen Henson* 5815 5816 * Disable SRP fake user seed to address a server memory leak. 5817 5818 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 5819 5820 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 5821 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 5822 was changed to ignore the "fake user" SRP seed, even if the seed 5823 is configured. 5824 5825 Users should use SRP_VBASE_get1_by_user instead. Note that in 5826 SRP_VBASE_get1_by_user, caller must free the returned value. Note 5827 also that even though configuring the SRP seed attempts to hide 5828 invalid usernames by continuing the handshake with fake 5829 credentials, this behaviour is not constant time and no strong 5830 guarantees are made that the handshake is indistinguishable from 5831 that of a valid user. 5832 ([CVE-2016-0798]) 5833 5834 *Emilia Käsper* 5835 5836 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 5837 5838 In the BN_hex2bn function the number of hex digits is calculated using an 5839 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 5840 large values of `i` this can result in `bn_expand` not allocating any 5841 memory because `i * 4` is negative. This can leave the internal BIGNUM data 5842 field as NULL leading to a subsequent NULL ptr deref. For very large values 5843 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 5844 In this case memory is allocated to the internal BIGNUM data field, but it 5845 is insufficiently sized leading to heap corruption. A similar issue exists 5846 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 5847 is ever called by user applications with very large untrusted hex/dec data. 5848 This is anticipated to be a rare occurrence. 5849 5850 All OpenSSL internal usage of these functions use data that is not expected 5851 to be untrusted, e.g. config file data or application command line 5852 arguments. If user developed applications generate config file data based 5853 on untrusted data then it is possible that this could also lead to security 5854 consequences. This is also anticipated to be rare. 5855 5856 This issue was reported to OpenSSL by Guido Vranken. 5857 ([CVE-2016-0797]) 5858 5859 *Matt Caswell* 5860 5861 * Fix memory issues in `BIO_*printf` functions 5862 5863 The internal `fmtstr` function used in processing a "%s" format string in 5864 the `BIO_*printf` functions could overflow while calculating the length of a 5865 string and cause an OOB read when printing very long strings. 5866 5867 Additionally the internal `doapr_outch` function can attempt to write to an 5868 OOB memory location (at an offset from the NULL pointer) in the event of a 5869 memory allocation failure. In 1.0.2 and below this could be caused where 5870 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 5871 could be in processing a very long "%s" format string. Memory leaks can 5872 also occur. 5873 5874 The first issue may mask the second issue dependent on compiler behaviour. 5875 These problems could enable attacks where large amounts of untrusted data 5876 is passed to the `BIO_*printf` functions. If applications use these functions 5877 in this way then they could be vulnerable. OpenSSL itself uses these 5878 functions when printing out human-readable dumps of ASN.1 data. Therefore 5879 applications that print this data could be vulnerable if the data is from 5880 untrusted sources. OpenSSL command line applications could also be 5881 vulnerable where they print out ASN.1 data, or if untrusted data is passed 5882 as command line arguments. 5883 5884 Libssl is not considered directly vulnerable. Additionally certificates etc 5885 received via remote connections via libssl are also unlikely to be able to 5886 trigger these issues because of message size limits enforced within libssl. 5887 5888 This issue was reported to OpenSSL Guido Vranken. 5889 ([CVE-2016-0799]) 5890 5891 *Matt Caswell* 5892 5893 * Side channel attack on modular exponentiation 5894 5895 A side-channel attack was found which makes use of cache-bank conflicts on 5896 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 5897 of RSA keys. The ability to exploit this issue is limited as it relies on 5898 an attacker who has control of code in a thread running on the same 5899 hyper-threaded core as the victim thread which is performing decryptions. 5900 5901 This issue was reported to OpenSSL by Yuval Yarom, The University of 5902 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 5903 Nadia Heninger, University of Pennsylvania with more information at 5904 <http://cachebleed.info>. 5905 ([CVE-2016-0702]) 5906 5907 *Andy Polyakov* 5908 5909 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 5910 if no keysize is specified with default_bits. This fixes an 5911 omission in an earlier change that changed all RSA/DSA key generation 5912 commands to use 2048 bits by default. 5913 5914 *Emilia Käsper* 5915 5916### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 5917 5918 * DH small subgroups 5919 5920 Historically OpenSSL only ever generated DH parameters based on "safe" 5921 primes. More recently (in version 1.0.2) support was provided for 5922 generating X9.42 style parameter files such as those required for RFC 5114 5923 support. The primes used in such files may not be "safe". Where an 5924 application is using DH configured with parameters based on primes that are 5925 not "safe" then an attacker could use this fact to find a peer's private 5926 DH exponent. This attack requires that the attacker complete multiple 5927 handshakes in which the peer uses the same private DH exponent. For example 5928 this could be used to discover a TLS server's private DH exponent if it's 5929 reusing the private DH exponent or it's using a static DH ciphersuite. 5930 5931 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 5932 TLS. It is not on by default. If the option is not set then the server 5933 reuses the same private DH exponent for the life of the server process and 5934 would be vulnerable to this attack. It is believed that many popular 5935 applications do set this option and would therefore not be at risk. 5936 5937 The fix for this issue adds an additional check where a "q" parameter is 5938 available (as is the case in X9.42 based parameters). This detects the 5939 only known attack, and is the only possible defense for static DH 5940 ciphersuites. This could have some performance impact. 5941 5942 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 5943 default and cannot be disabled. This could have some performance impact. 5944 5945 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 5946 ([CVE-2016-0701]) 5947 5948 *Matt Caswell* 5949 5950 * SSLv2 doesn't block disabled ciphers 5951 5952 A malicious client can negotiate SSLv2 ciphers that have been disabled on 5953 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 5954 been disabled, provided that the SSLv2 protocol was not also disabled via 5955 SSL_OP_NO_SSLv2. 5956 5957 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 5958 and Sebastian Schinzel. 5959 ([CVE-2015-3197]) 5960 5961 *Viktor Dukhovni* 5962 5963### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 5964 5965 * BN_mod_exp may produce incorrect results on x86_64 5966 5967 There is a carry propagating bug in the x86_64 Montgomery squaring 5968 procedure. No EC algorithms are affected. Analysis suggests that attacks 5969 against RSA and DSA as a result of this defect would be very difficult to 5970 perform and are not believed likely. Attacks against DH are considered just 5971 feasible (although very difficult) because most of the work necessary to 5972 deduce information about a private key may be performed offline. The amount 5973 of resources required for such an attack would be very significant and 5974 likely only accessible to a limited number of attackers. An attacker would 5975 additionally need online access to an unpatched system using the target 5976 private key in a scenario with persistent DH parameters and a private 5977 key that is shared between multiple clients. For example this can occur by 5978 default in OpenSSL DHE based SSL/TLS ciphersuites. 5979 5980 This issue was reported to OpenSSL by Hanno Böck. 5981 ([CVE-2015-3193]) 5982 5983 *Andy Polyakov* 5984 5985 * Certificate verify crash with missing PSS parameter 5986 5987 The signature verification routines will crash with a NULL pointer 5988 dereference if presented with an ASN.1 signature using the RSA PSS 5989 algorithm and absent mask generation function parameter. Since these 5990 routines are used to verify certificate signature algorithms this can be 5991 used to crash any certificate verification operation and exploited in a 5992 DoS attack. Any application which performs certificate verification is 5993 vulnerable including OpenSSL clients and servers which enable client 5994 authentication. 5995 5996 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 5997 ([CVE-2015-3194]) 5998 5999 *Stephen Henson* 6000 6001 * X509_ATTRIBUTE memory leak 6002 6003 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 6004 memory. This structure is used by the PKCS#7 and CMS routines so any 6005 application which reads PKCS#7 or CMS data from untrusted sources is 6006 affected. SSL/TLS is not affected. 6007 6008 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 6009 libFuzzer. 6010 ([CVE-2015-3195]) 6011 6012 *Stephen Henson* 6013 6014 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 6015 This changes the decoding behaviour for some invalid messages, 6016 though the change is mostly in the more lenient direction, and 6017 legacy behaviour is preserved as much as possible. 6018 6019 *Emilia Käsper* 6020 6021 * In DSA_generate_parameters_ex, if the provided seed is too short, 6022 return an error 6023 6024 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 6025 6026### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6027 6028 * Alternate chains certificate forgery 6029 6030 During certificate verification, OpenSSL will attempt to find an 6031 alternative certificate chain if the first attempt to build such a chain 6032 fails. An error in the implementation of this logic can mean that an 6033 attacker could cause certain checks on untrusted certificates to be 6034 bypassed, such as the CA flag, enabling them to use a valid leaf 6035 certificate to act as a CA and "issue" an invalid certificate. 6036 6037 This issue was reported to OpenSSL by Adam Langley/David Benjamin 6038 (Google/BoringSSL). 6039 6040 *Matt Caswell* 6041 6042### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 6043 6044 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 6045 incompatibility in the handling of HMAC. The previous ABI has now been 6046 restored. 6047 6048 *Matt Caswell* 6049 6050### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 6051 6052 * Malformed ECParameters causes infinite loop 6053 6054 When processing an ECParameters structure OpenSSL enters an infinite loop 6055 if the curve specified is over a specially malformed binary polynomial 6056 field. 6057 6058 This can be used to perform denial of service against any 6059 system which processes public keys, certificate requests or 6060 certificates. This includes TLS clients and TLS servers with 6061 client authentication enabled. 6062 6063 This issue was reported to OpenSSL by Joseph Barr-Pixton. 6064 ([CVE-2015-1788]) 6065 6066 *Andy Polyakov* 6067 6068 * Exploitable out-of-bounds read in X509_cmp_time 6069 6070 X509_cmp_time does not properly check the length of the ASN1_TIME 6071 string and can read a few bytes out of bounds. In addition, 6072 X509_cmp_time accepts an arbitrary number of fractional seconds in the 6073 time string. 6074 6075 An attacker can use this to craft malformed certificates and CRLs of 6076 various sizes and potentially cause a segmentation fault, resulting in 6077 a DoS on applications that verify certificates or CRLs. TLS clients 6078 that verify CRLs are affected. TLS clients and servers with client 6079 authentication enabled may be affected if they use custom verification 6080 callbacks. 6081 6082 This issue was reported to OpenSSL by Robert Swiecki (Google), and 6083 independently by Hanno Böck. 6084 ([CVE-2015-1789]) 6085 6086 *Emilia Käsper* 6087 6088 * PKCS7 crash with missing EnvelopedContent 6089 6090 The PKCS#7 parsing code does not handle missing inner EncryptedContent 6091 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 6092 with missing content and trigger a NULL pointer dereference on parsing. 6093 6094 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 6095 structures from untrusted sources are affected. OpenSSL clients and 6096 servers are not affected. 6097 6098 This issue was reported to OpenSSL by Michal Zalewski (Google). 6099 ([CVE-2015-1790]) 6100 6101 *Emilia Käsper* 6102 6103 * CMS verify infinite loop with unknown hash function 6104 6105 When verifying a signedData message the CMS code can enter an infinite loop 6106 if presented with an unknown hash function OID. This can be used to perform 6107 denial of service against any system which verifies signedData messages using 6108 the CMS code. 6109 This issue was reported to OpenSSL by Johannes Bauer. 6110 ([CVE-2015-1792]) 6111 6112 *Stephen Henson* 6113 6114 * Race condition handling NewSessionTicket 6115 6116 If a NewSessionTicket is received by a multi-threaded client when attempting to 6117 reuse a previous ticket then a race condition can occur potentially leading to 6118 a double free of the ticket data. 6119 ([CVE-2015-1791]) 6120 6121 *Matt Caswell* 6122 6123 * Only support 256-bit or stronger elliptic curves with the 6124 'ecdh_auto' setting (server) or by default (client). Of supported 6125 curves, prefer P-256 (both). 6126 6127 *Emilia Kasper* 6128 6129### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 6130 6131 * ClientHello sigalgs DoS fix 6132 6133 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 6134 invalid signature algorithms extension a NULL pointer dereference will 6135 occur. This can be exploited in a DoS attack against the server. 6136 6137 This issue was was reported to OpenSSL by David Ramos of Stanford 6138 University. 6139 ([CVE-2015-0291]) 6140 6141 *Stephen Henson and Matt Caswell* 6142 6143 * Multiblock corrupted pointer fix 6144 6145 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 6146 feature only applies on 64 bit x86 architecture platforms that support AES 6147 NI instructions. A defect in the implementation of "multiblock" can cause 6148 OpenSSL's internal write buffer to become incorrectly set to NULL when 6149 using non-blocking IO. Typically, when the user application is using a 6150 socket BIO for writing, this will only result in a failed connection. 6151 However if some other BIO is used then it is likely that a segmentation 6152 fault will be triggered, thus enabling a potential DoS attack. 6153 6154 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6155 ([CVE-2015-0290]) 6156 6157 *Matt Caswell* 6158 6159 * Segmentation fault in DTLSv1_listen fix 6160 6161 The DTLSv1_listen function is intended to be stateless and processes the 6162 initial ClientHello from many peers. It is common for user code to loop 6163 over the call to DTLSv1_listen until a valid ClientHello is received with 6164 an associated cookie. A defect in the implementation of DTLSv1_listen means 6165 that state is preserved in the SSL object from one invocation to the next 6166 that can lead to a segmentation fault. Errors processing the initial 6167 ClientHello can trigger this scenario. An example of such an error could be 6168 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6169 server. 6170 6171 This issue was reported to OpenSSL by Per Allansson. 6172 ([CVE-2015-0207]) 6173 6174 *Matt Caswell* 6175 6176 * Segmentation fault in ASN1_TYPE_cmp fix 6177 6178 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6179 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6180 certificate signature algorithm consistency this can be used to crash any 6181 certificate verification operation and exploited in a DoS attack. Any 6182 application which performs certificate verification is vulnerable including 6183 OpenSSL clients and servers which enable client authentication. 6184 ([CVE-2015-0286]) 6185 6186 *Stephen Henson* 6187 6188 * Segmentation fault for invalid PSS parameters fix 6189 6190 The signature verification routines will crash with a NULL pointer 6191 dereference if presented with an ASN.1 signature using the RSA PSS 6192 algorithm and invalid parameters. Since these routines are used to verify 6193 certificate signature algorithms this can be used to crash any 6194 certificate verification operation and exploited in a DoS attack. Any 6195 application which performs certificate verification is vulnerable including 6196 OpenSSL clients and servers which enable client authentication. 6197 6198 This issue was was reported to OpenSSL by Brian Carpenter. 6199 ([CVE-2015-0208]) 6200 6201 *Stephen Henson* 6202 6203 * ASN.1 structure reuse memory corruption fix 6204 6205 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6206 memory corruption via an invalid write. Such reuse is and has been 6207 strongly discouraged and is believed to be rare. 6208 6209 Applications that parse structures containing CHOICE or ANY DEFINED BY 6210 components may be affected. Certificate parsing (d2i_X509 and related 6211 functions) are however not affected. OpenSSL clients and servers are 6212 not affected. 6213 ([CVE-2015-0287]) 6214 6215 *Stephen Henson* 6216 6217 * PKCS7 NULL pointer dereferences fix 6218 6219 The PKCS#7 parsing code does not handle missing outer ContentInfo 6220 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6221 missing content and trigger a NULL pointer dereference on parsing. 6222 6223 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6224 otherwise parse PKCS#7 structures from untrusted sources are 6225 affected. OpenSSL clients and servers are not affected. 6226 6227 This issue was reported to OpenSSL by Michal Zalewski (Google). 6228 ([CVE-2015-0289]) 6229 6230 *Emilia Käsper* 6231 6232 * DoS via reachable assert in SSLv2 servers fix 6233 6234 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6235 servers that both support SSLv2 and enable export cipher suites by sending 6236 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6237 6238 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6239 (OpenSSL development team). 6240 ([CVE-2015-0293]) 6241 6242 *Emilia Käsper* 6243 6244 * Empty CKE with client auth and DHE fix 6245 6246 If client auth is used then a server can seg fault in the event of a DHE 6247 ciphersuite being selected and a zero length ClientKeyExchange message 6248 being sent by the client. This could be exploited in a DoS attack. 6249 ([CVE-2015-1787]) 6250 6251 *Matt Caswell* 6252 6253 * Handshake with unseeded PRNG fix 6254 6255 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6256 with an unseeded PRNG. The conditions are: 6257 - The client is on a platform where the PRNG has not been seeded 6258 automatically, and the user has not seeded manually 6259 - A protocol specific client method version has been used (i.e. not 6260 SSL_client_methodv23) 6261 - A ciphersuite is used that does not require additional random data from 6262 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6263 6264 If the handshake succeeds then the client random that has been used will 6265 have been generated from a PRNG with insufficient entropy and therefore the 6266 output may be predictable. 6267 6268 For example using the following command with an unseeded openssl will 6269 succeed on an unpatched platform: 6270 6271 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6272 ([CVE-2015-0285]) 6273 6274 *Matt Caswell* 6275 6276 * Use After Free following d2i_ECPrivatekey error fix 6277 6278 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6279 could cause a use after free condition. This, in turn, could cause a double 6280 free in several private key parsing functions (such as d2i_PrivateKey 6281 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6282 for applications that receive EC private keys from untrusted 6283 sources. This scenario is considered rare. 6284 6285 This issue was discovered by the BoringSSL project and fixed in their 6286 commit 517073cd4b. 6287 ([CVE-2015-0209]) 6288 6289 *Matt Caswell* 6290 6291 * X509_to_X509_REQ NULL pointer deref fix 6292 6293 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6294 the certificate key is invalid. This function is rarely used in practice. 6295 6296 This issue was discovered by Brian Carpenter. 6297 ([CVE-2015-0288]) 6298 6299 *Stephen Henson* 6300 6301 * Removed the export ciphers from the DEFAULT ciphers 6302 6303 *Kurt Roeckx* 6304 6305### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6306 6307 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6308 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6309 So far those who have to target multiple platforms would compromise 6310 and argue that binary targeting say ARMv5 would still execute on 6311 ARMv8. "Universal" build resolves this compromise by providing 6312 near-optimal performance even on newer platforms. 6313 6314 *Andy Polyakov* 6315 6316 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6317 (other platforms pending). 6318 6319 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6320 6321 * Add support for the SignedCertificateTimestampList certificate and 6322 OCSP response extensions from RFC6962. 6323 6324 *Rob Stradling* 6325 6326 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6327 for corner cases. (Certain input points at infinity could lead to 6328 bogus results, with non-infinity inputs mapped to infinity too.) 6329 6330 *Bodo Moeller* 6331 6332 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6333 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6334 common cases are optimized and there still is room for further 6335 improvements. Vector Permutation AES for Altivec is also added. 6336 6337 *Andy Polyakov* 6338 6339 * Add support for little-endian ppc64 Linux target. 6340 6341 *Marcelo Cerri (IBM)* 6342 6343 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6344 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6345 are optimized and there still is room for further improvements. 6346 Both 32- and 64-bit modes are supported. 6347 6348 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6349 6350 * Improved ARMv7 NEON support. 6351 6352 *Andy Polyakov* 6353 6354 * Support for SPARC Architecture 2011 crypto extensions, first 6355 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6356 SHA256/512, MD5, GHASH and modular exponentiation. 6357 6358 *Andy Polyakov, David Miller* 6359 6360 * Accelerated modular exponentiation for Intel processors, a.k.a. 6361 RSAZ. 6362 6363 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6364 6365 * Support for new and upcoming Intel processors, including AVX2, 6366 BMI and SHA ISA extensions. This includes additional "stitched" 6367 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6368 for TLS encrypt. 6369 6370 This work was sponsored by Intel Corp. 6371 6372 *Andy Polyakov* 6373 6374 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6375 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6376 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6377 6378 *Steve Henson* 6379 6380 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6381 this fixes a limitation in previous versions of OpenSSL. 6382 6383 *Steve Henson* 6384 6385 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6386 MGF1 digest and OAEP label. 6387 6388 *Steve Henson* 6389 6390 * Add EVP support for key wrapping algorithms, to avoid problems with 6391 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6392 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6393 algorithms and include tests cases. 6394 6395 *Steve Henson* 6396 6397 * Add functions to allocate and set the fields of an ECDSA_METHOD 6398 structure. 6399 6400 *Douglas E. Engert, Steve Henson* 6401 6402 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6403 difference in days and seconds between two tm or ASN1_TIME structures. 6404 6405 *Steve Henson* 6406 6407 * Add -rev test option to s_server to just reverse order of characters 6408 received by client and send back to server. Also prints an abbreviated 6409 summary of the connection parameters. 6410 6411 *Steve Henson* 6412 6413 * New option -brief for s_client and s_server to print out a brief summary 6414 of connection parameters. 6415 6416 *Steve Henson* 6417 6418 * Add callbacks for arbitrary TLS extensions. 6419 6420 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6421 6422 * New option -crl_download in several openssl utilities to download CRLs 6423 from CRLDP extension in certificates. 6424 6425 *Steve Henson* 6426 6427 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6428 6429 *Steve Henson* 6430 6431 * New function X509_CRL_diff to generate a delta CRL from the difference 6432 of two full CRLs. Add support to "crl" utility. 6433 6434 *Steve Henson* 6435 6436 * New functions to set lookup_crls function and to retrieve 6437 X509_STORE from X509_STORE_CTX. 6438 6439 *Steve Henson* 6440 6441 * Print out deprecated issuer and subject unique ID fields in 6442 certificates. 6443 6444 *Steve Henson* 6445 6446 * Extend OCSP I/O functions so they can be used for simple general purpose 6447 HTTP as well as OCSP. New wrapper function which can be used to download 6448 CRLs using the OCSP API. 6449 6450 *Steve Henson* 6451 6452 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6453 6454 *Steve Henson* 6455 6456 * `SSL_CONF*` functions. These provide a common framework for application 6457 configuration using configuration files or command lines. 6458 6459 *Steve Henson* 6460 6461 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6462 message callback and prints the results. Needs compile time option 6463 "enable-ssl-trace". New options to s_client and s_server to enable 6464 tracing. 6465 6466 *Steve Henson* 6467 6468 * New ctrl and macro to retrieve supported points extensions. 6469 Print out extension in s_server and s_client. 6470 6471 *Steve Henson* 6472 6473 * New functions to retrieve certificate signature and signature 6474 OID NID. 6475 6476 *Steve Henson* 6477 6478 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6479 client to OpenSSL. 6480 6481 *Steve Henson* 6482 6483 * New Suite B modes for TLS code. These use and enforce the requirements 6484 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6485 only use Suite B curves. The Suite B modes can be set by using the 6486 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6487 6488 *Steve Henson* 6489 6490 * New chain verification flags for Suite B levels of security. Check 6491 algorithms are acceptable when flags are set in X509_verify_cert. 6492 6493 *Steve Henson* 6494 6495 * Make tls1_check_chain return a set of flags indicating checks passed 6496 by a certificate chain. Add additional tests to handle client 6497 certificates: checks for matching certificate type and issuer name 6498 comparison. 6499 6500 *Steve Henson* 6501 6502 * If an attempt is made to use a signature algorithm not in the peer 6503 preference list abort the handshake. If client has no suitable 6504 signature algorithms in response to a certificate request do not 6505 use the certificate. 6506 6507 *Steve Henson* 6508 6509 * If server EC tmp key is not in client preference list abort handshake. 6510 6511 *Steve Henson* 6512 6513 * Add support for certificate stores in CERT structure. This makes it 6514 possible to have different stores per SSL structure or one store in 6515 the parent SSL_CTX. Include distinct stores for certificate chain 6516 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6517 to build and store a certificate chain in CERT structure: returning 6518 an error if the chain cannot be built: this will allow applications 6519 to test if a chain is correctly configured. 6520 6521 Note: if the CERT based stores are not set then the parent SSL_CTX 6522 store is used to retain compatibility with existing behaviour. 6523 6524 *Steve Henson* 6525 6526 * New function ssl_set_client_disabled to set a ciphersuite disabled 6527 mask based on the current session, check mask when sending client 6528 hello and checking the requested ciphersuite. 6529 6530 *Steve Henson* 6531 6532 * New ctrls to retrieve and set certificate types in a certificate 6533 request message. Print out received values in s_client. If certificate 6534 types is not set with custom values set sensible values based on 6535 supported signature algorithms. 6536 6537 *Steve Henson* 6538 6539 * Support for distinct client and server supported signature algorithms. 6540 6541 *Steve Henson* 6542 6543 * Add certificate callback. If set this is called whenever a certificate 6544 is required by client or server. An application can decide which 6545 certificate chain to present based on arbitrary criteria: for example 6546 supported signature algorithms. Add very simple example to s_server. 6547 This fixes many of the problems and restrictions of the existing client 6548 certificate callback: for example you can now clear an existing 6549 certificate and specify the whole chain. 6550 6551 *Steve Henson* 6552 6553 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6554 the certificate can be used for (if anything). Set valid_flags field 6555 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6556 to have similar checks in it. 6557 6558 Add new "cert_flags" field to CERT structure and include a "strict mode". 6559 This enforces some TLS certificate requirements (such as only permitting 6560 certificate signature algorithms contained in the supported algorithms 6561 extension) which some implementations ignore: this option should be used 6562 with caution as it could cause interoperability issues. 6563 6564 *Steve Henson* 6565 6566 * Update and tidy signature algorithm extension processing. Work out 6567 shared signature algorithms based on preferences and peer algorithms 6568 and print them out in s_client and s_server. Abort handshake if no 6569 shared signature algorithms. 6570 6571 *Steve Henson* 6572 6573 * Add new functions to allow customised supported signature algorithms 6574 for SSL and SSL_CTX structures. Add options to s_client and s_server 6575 to support them. 6576 6577 *Steve Henson* 6578 6579 * New function SSL_certs_clear() to delete all references to certificates 6580 from an SSL structure. Before this once a certificate had been added 6581 it couldn't be removed. 6582 6583 *Steve Henson* 6584 6585 * Integrate hostname, email address and IP address checking with certificate 6586 verification. New verify options supporting checking in openssl utility. 6587 6588 *Steve Henson* 6589 6590 * Fixes and wildcard matching support to hostname and email checking 6591 functions. Add manual page. 6592 6593 *Florian Weimer (Red Hat Product Security Team)* 6594 6595 * New functions to check a hostname email or IP address against a 6596 certificate. Add options x509 utility to print results of checks against 6597 a certificate. 6598 6599 *Steve Henson* 6600 6601 * Fix OCSP checking. 6602 6603 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6604 6605 * Initial experimental support for explicitly trusted non-root CAs. 6606 OpenSSL still tries to build a complete chain to a root but if an 6607 intermediate CA has a trust setting included that is used. The first 6608 setting is used: whether to trust (e.g., -addtrust option to the x509 6609 utility) or reject. 6610 6611 *Steve Henson* 6612 6613 * Add -trusted_first option which attempts to find certificates in the 6614 trusted store even if an untrusted chain is also supplied. 6615 6616 *Steve Henson* 6617 6618 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6619 platform support for Linux and Android. 6620 6621 *Andy Polyakov* 6622 6623 * Support for linux-x32, ILP32 environment in x86_64 framework. 6624 6625 *Andy Polyakov* 6626 6627 * Experimental multi-implementation support for FIPS capable OpenSSL. 6628 When in FIPS mode the approved implementations are used as normal, 6629 when not in FIPS mode the internal unapproved versions are used instead. 6630 This means that the FIPS capable OpenSSL isn't forced to use the 6631 (often lower performance) FIPS implementations outside FIPS mode. 6632 6633 *Steve Henson* 6634 6635 * Transparently support X9.42 DH parameters when calling 6636 PEM_read_bio_DHparameters. This means existing applications can handle 6637 the new parameter format automatically. 6638 6639 *Steve Henson* 6640 6641 * Initial experimental support for X9.42 DH parameter format: mainly 6642 to support use of 'q' parameter for RFC5114 parameters. 6643 6644 *Steve Henson* 6645 6646 * Add DH parameters from RFC5114 including test data to dhtest. 6647 6648 *Steve Henson* 6649 6650 * Support for automatic EC temporary key parameter selection. If enabled 6651 the most preferred EC parameters are automatically used instead of 6652 hardcoded fixed parameters. Now a server just has to call: 6653 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6654 support ECDH and use the most appropriate parameters. 6655 6656 *Steve Henson* 6657 6658 * Enhance and tidy EC curve and point format TLS extension code. Use 6659 static structures instead of allocation if default values are used. 6660 New ctrls to set curves we wish to support and to retrieve shared curves. 6661 Print out shared curves in s_server. New options to s_server and s_client 6662 to set list of supported curves. 6663 6664 *Steve Henson* 6665 6666 * New ctrls to retrieve supported signature algorithms and 6667 supported curve values as an array of NIDs. Extend openssl utility 6668 to print out received values. 6669 6670 *Steve Henson* 6671 6672 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6673 between NIDs and the more common NIST names such as "P-256". Enhance 6674 ecparam utility and ECC method to recognise the NIST names for curves. 6675 6676 *Steve Henson* 6677 6678 * Enhance SSL/TLS certificate chain handling to support different 6679 chains for each certificate instead of one chain in the parent SSL_CTX. 6680 6681 *Steve Henson* 6682 6683 * Support for fixed DH ciphersuite client authentication: where both 6684 server and client use DH certificates with common parameters. 6685 6686 *Steve Henson* 6687 6688 * Support for fixed DH ciphersuites: those requiring DH server 6689 certificates. 6690 6691 *Steve Henson* 6692 6693 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6694 the certificate. 6695 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6696 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6697 X509_CINF_get_signature were reverted post internal team review. 6698 6699OpenSSL 1.0.1 6700------------- 6701 6702### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6703 6704 * OCSP Status Request extension unbounded memory growth 6705 6706 A malicious client can send an excessively large OCSP Status Request 6707 extension. If that client continually requests renegotiation, sending a 6708 large OCSP Status Request extension each time, then there will be unbounded 6709 memory growth on the server. This will eventually lead to a Denial Of 6710 Service attack through memory exhaustion. Servers with a default 6711 configuration are vulnerable even if they do not support OCSP. Builds using 6712 the "no-ocsp" build time option are not affected. 6713 6714 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6715 ([CVE-2016-6304]) 6716 6717 *Matt Caswell* 6718 6719 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6720 HIGH to MEDIUM. 6721 6722 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6723 Leurent (INRIA) 6724 ([CVE-2016-2183]) 6725 6726 *Rich Salz* 6727 6728 * OOB write in MDC2_Update() 6729 6730 An overflow can occur in MDC2_Update() either if called directly or 6731 through the EVP_DigestUpdate() function using MDC2. If an attacker 6732 is able to supply very large amounts of input data after a previous 6733 call to EVP_EncryptUpdate() with a partial block then a length check 6734 can overflow resulting in a heap corruption. 6735 6736 The amount of data needed is comparable to SIZE_MAX which is impractical 6737 on most platforms. 6738 6739 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6740 ([CVE-2016-6303]) 6741 6742 *Stephen Henson* 6743 6744 * Malformed SHA512 ticket DoS 6745 6746 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6747 DoS attack where a malformed ticket will result in an OOB read which will 6748 ultimately crash. 6749 6750 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6751 a custom server callback and ticket lookup mechanism. 6752 6753 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6754 ([CVE-2016-6302]) 6755 6756 *Stephen Henson* 6757 6758 * OOB write in BN_bn2dec() 6759 6760 The function BN_bn2dec() does not check the return value of BN_div_word(). 6761 This can cause an OOB write if an application uses this function with an 6762 overly large BIGNUM. This could be a problem if an overly large certificate 6763 or CRL is printed out from an untrusted source. TLS is not affected because 6764 record limits will reject an oversized certificate before it is parsed. 6765 6766 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6767 ([CVE-2016-2182]) 6768 6769 *Stephen Henson* 6770 6771 * OOB read in TS_OBJ_print_bio() 6772 6773 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6774 the total length the OID text representation would use and not the amount 6775 of data written. This will result in OOB reads when large OIDs are 6776 presented. 6777 6778 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6779 ([CVE-2016-2180]) 6780 6781 *Stephen Henson* 6782 6783 * Pointer arithmetic undefined behaviour 6784 6785 Avoid some undefined pointer arithmetic 6786 6787 A common idiom in the codebase is to check limits in the following manner: 6788 "p + len > limit" 6789 6790 Where "p" points to some malloc'd data of SIZE bytes and 6791 limit == p + SIZE 6792 6793 "len" here could be from some externally supplied data (e.g. from a TLS 6794 message). 6795 6796 The rules of C pointer arithmetic are such that "p + len" is only well 6797 defined where len <= SIZE. Therefore the above idiom is actually 6798 undefined behaviour. 6799 6800 For example this could cause problems if some malloc implementation 6801 provides an address for "p" such that "p + len" actually overflows for 6802 values of len that are too big and therefore p + len < limit. 6803 6804 This issue was reported to OpenSSL by Guido Vranken 6805 ([CVE-2016-2177]) 6806 6807 *Matt Caswell* 6808 6809 * Constant time flag not preserved in DSA signing 6810 6811 Operations in the DSA signing algorithm should run in constant time in 6812 order to avoid side channel attacks. A flaw in the OpenSSL DSA 6813 implementation means that a non-constant time codepath is followed for 6814 certain operations. This has been demonstrated through a cache-timing 6815 attack to be sufficient for an attacker to recover the private DSA key. 6816 6817 This issue was reported by César Pereida (Aalto University), Billy Brumley 6818 (Tampere University of Technology), and Yuval Yarom (The University of 6819 Adelaide and NICTA). 6820 ([CVE-2016-2178]) 6821 6822 *César Pereida* 6823 6824 * DTLS buffered message DoS 6825 6826 In a DTLS connection where handshake messages are delivered out-of-order 6827 those messages that OpenSSL is not yet ready to process will be buffered 6828 for later use. Under certain circumstances, a flaw in the logic means that 6829 those messages do not get removed from the buffer even though the handshake 6830 has been completed. An attacker could force up to approx. 15 messages to 6831 remain in the buffer when they are no longer required. These messages will 6832 be cleared when the DTLS connection is closed. The default maximum size for 6833 a message is 100k. Therefore the attacker could force an additional 1500k 6834 to be consumed per connection. By opening many simulataneous connections an 6835 attacker could cause a DoS attack through memory exhaustion. 6836 6837 This issue was reported to OpenSSL by Quan Luo. 6838 ([CVE-2016-2179]) 6839 6840 *Matt Caswell* 6841 6842 * DTLS replay protection DoS 6843 6844 A flaw in the DTLS replay attack protection mechanism means that records 6845 that arrive for future epochs update the replay protection "window" before 6846 the MAC for the record has been validated. This could be exploited by an 6847 attacker by sending a record for the next epoch (which does not have to 6848 decrypt or have a valid MAC), with a very large sequence number. This means 6849 that all subsequent legitimate packets are dropped causing a denial of 6850 service for a specific DTLS connection. 6851 6852 This issue was reported to OpenSSL by the OCAP audit team. 6853 ([CVE-2016-2181]) 6854 6855 *Matt Caswell* 6856 6857 * Certificate message OOB reads 6858 6859 In OpenSSL 1.0.2 and earlier some missing message length checks can result 6860 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 6861 theoretical DoS risk but this has not been observed in practice on common 6862 platforms. 6863 6864 The messages affected are client certificate, client certificate request 6865 and server certificate. As a result the attack can only be performed 6866 against a client or a server which enables client authentication. 6867 6868 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6869 ([CVE-2016-6306]) 6870 6871 *Stephen Henson* 6872 6873### Changes between 1.0.1s and 1.0.1t [3 May 2016] 6874 6875 * Prevent padding oracle in AES-NI CBC MAC check 6876 6877 A MITM attacker can use a padding oracle attack to decrypt traffic 6878 when the connection uses an AES CBC cipher and the server support 6879 AES-NI. 6880 6881 This issue was introduced as part of the fix for Lucky 13 padding 6882 attack ([CVE-2013-0169]). The padding check was rewritten to be in 6883 constant time by making sure that always the same bytes are read and 6884 compared against either the MAC or padding bytes. But it no longer 6885 checked that there was enough data to have both the MAC and padding 6886 bytes. 6887 6888 This issue was reported by Juraj Somorovsky using TLS-Attacker. 6889 ([CVE-2016-2107]) 6890 6891 *Kurt Roeckx* 6892 6893 * Fix EVP_EncodeUpdate overflow 6894 6895 An overflow can occur in the EVP_EncodeUpdate() function which is used for 6896 Base64 encoding of binary data. If an attacker is able to supply very large 6897 amounts of input data then a length check can overflow resulting in a heap 6898 corruption. 6899 6900 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 6901 the `PEM_write_bio*` family of functions. These are mainly used within the 6902 OpenSSL command line applications, so any application which processes data 6903 from an untrusted source and outputs it as a PEM file should be considered 6904 vulnerable to this issue. User applications that call these APIs directly 6905 with large amounts of untrusted data may also be vulnerable. 6906 6907 This issue was reported by Guido Vranken. 6908 ([CVE-2016-2105]) 6909 6910 *Matt Caswell* 6911 6912 * Fix EVP_EncryptUpdate overflow 6913 6914 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 6915 is able to supply very large amounts of input data after a previous call to 6916 EVP_EncryptUpdate() with a partial block then a length check can overflow 6917 resulting in a heap corruption. Following an analysis of all OpenSSL 6918 internal usage of the EVP_EncryptUpdate() function all usage is one of two 6919 forms. The first form is where the EVP_EncryptUpdate() call is known to be 6920 the first called function after an EVP_EncryptInit(), and therefore that 6921 specific call must be safe. The second form is where the length passed to 6922 EVP_EncryptUpdate() can be seen from the code to be some small value and 6923 therefore there is no possibility of an overflow. Since all instances are 6924 one of these two forms, it is believed that there can be no overflows in 6925 internal code due to this problem. It should be noted that 6926 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 6927 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 6928 of these calls have also been analysed too and it is believed there are no 6929 instances in internal usage where an overflow could occur. 6930 6931 This issue was reported by Guido Vranken. 6932 ([CVE-2016-2106]) 6933 6934 *Matt Caswell* 6935 6936 * Prevent ASN.1 BIO excessive memory allocation 6937 6938 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 6939 a short invalid encoding can casuse allocation of large amounts of memory 6940 potentially consuming excessive resources or exhausting memory. 6941 6942 Any application parsing untrusted data through d2i BIO functions is 6943 affected. The memory based functions such as d2i_X509() are *not* affected. 6944 Since the memory based functions are used by the TLS library, TLS 6945 applications are not affected. 6946 6947 This issue was reported by Brian Carpenter. 6948 ([CVE-2016-2109]) 6949 6950 *Stephen Henson* 6951 6952 * EBCDIC overread 6953 6954 ASN1 Strings that are over 1024 bytes can cause an overread in applications 6955 using the X509_NAME_oneline() function on EBCDIC systems. This could result 6956 in arbitrary stack data being returned in the buffer. 6957 6958 This issue was reported by Guido Vranken. 6959 ([CVE-2016-2176]) 6960 6961 *Matt Caswell* 6962 6963 * Modify behavior of ALPN to invoke callback after SNI/servername 6964 callback, such that updates to the SSL_CTX affect ALPN. 6965 6966 *Todd Short* 6967 6968 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 6969 default. 6970 6971 *Kurt Roeckx* 6972 6973 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 6974 methods are enabled and ssl2 is disabled the methods return NULL. 6975 6976 *Kurt Roeckx* 6977 6978### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 6979 6980* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6981 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6982 provide any "EXPORT" or "LOW" strength ciphers. 6983 6984 *Viktor Dukhovni* 6985 6986* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6987 is by default disabled at build-time. Builds that are not configured with 6988 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6989 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6990 will need to explicitly call either of: 6991 6992 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 6993 or 6994 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 6995 6996 as appropriate. Even if either of those is used, or the application 6997 explicitly uses the version-specific SSLv2_method() or its client and 6998 server variants, SSLv2 ciphers vulnerable to exhaustive search key 6999 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 7000 ciphers, and SSLv2 56-bit DES are no longer available. 7001 ([CVE-2016-0800]) 7002 7003 *Viktor Dukhovni* 7004 7005 * Fix a double-free in DSA code 7006 7007 A double free bug was discovered when OpenSSL parses malformed DSA private 7008 keys and could lead to a DoS attack or memory corruption for applications 7009 that receive DSA private keys from untrusted sources. This scenario is 7010 considered rare. 7011 7012 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 7013 libFuzzer. 7014 ([CVE-2016-0705]) 7015 7016 *Stephen Henson* 7017 7018 * Disable SRP fake user seed to address a server memory leak. 7019 7020 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 7021 7022 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 7023 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 7024 was changed to ignore the "fake user" SRP seed, even if the seed 7025 is configured. 7026 7027 Users should use SRP_VBASE_get1_by_user instead. Note that in 7028 SRP_VBASE_get1_by_user, caller must free the returned value. Note 7029 also that even though configuring the SRP seed attempts to hide 7030 invalid usernames by continuing the handshake with fake 7031 credentials, this behaviour is not constant time and no strong 7032 guarantees are made that the handshake is indistinguishable from 7033 that of a valid user. 7034 ([CVE-2016-0798]) 7035 7036 *Emilia Käsper* 7037 7038 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 7039 7040 In the BN_hex2bn function the number of hex digits is calculated using an 7041 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 7042 large values of `i` this can result in `bn_expand` not allocating any 7043 memory because `i * 4` is negative. This can leave the internal BIGNUM data 7044 field as NULL leading to a subsequent NULL ptr deref. For very large values 7045 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 7046 In this case memory is allocated to the internal BIGNUM data field, but it 7047 is insufficiently sized leading to heap corruption. A similar issue exists 7048 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 7049 is ever called by user applications with very large untrusted hex/dec data. 7050 This is anticipated to be a rare occurrence. 7051 7052 All OpenSSL internal usage of these functions use data that is not expected 7053 to be untrusted, e.g. config file data or application command line 7054 arguments. If user developed applications generate config file data based 7055 on untrusted data then it is possible that this could also lead to security 7056 consequences. This is also anticipated to be rare. 7057 7058 This issue was reported to OpenSSL by Guido Vranken. 7059 ([CVE-2016-0797]) 7060 7061 *Matt Caswell* 7062 7063 * Fix memory issues in `BIO_*printf` functions 7064 7065 The internal `fmtstr` function used in processing a "%s" format string in 7066 the `BIO_*printf` functions could overflow while calculating the length of a 7067 string and cause an OOB read when printing very long strings. 7068 7069 Additionally the internal `doapr_outch` function can attempt to write to an 7070 OOB memory location (at an offset from the NULL pointer) in the event of a 7071 memory allocation failure. In 1.0.2 and below this could be caused where 7072 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 7073 could be in processing a very long "%s" format string. Memory leaks can 7074 also occur. 7075 7076 The first issue may mask the second issue dependent on compiler behaviour. 7077 These problems could enable attacks where large amounts of untrusted data 7078 is passed to the `BIO_*printf` functions. If applications use these functions 7079 in this way then they could be vulnerable. OpenSSL itself uses these 7080 functions when printing out human-readable dumps of ASN.1 data. Therefore 7081 applications that print this data could be vulnerable if the data is from 7082 untrusted sources. OpenSSL command line applications could also be 7083 vulnerable where they print out ASN.1 data, or if untrusted data is passed 7084 as command line arguments. 7085 7086 Libssl is not considered directly vulnerable. Additionally certificates etc 7087 received via remote connections via libssl are also unlikely to be able to 7088 trigger these issues because of message size limits enforced within libssl. 7089 7090 This issue was reported to OpenSSL Guido Vranken. 7091 ([CVE-2016-0799]) 7092 7093 *Matt Caswell* 7094 7095 * Side channel attack on modular exponentiation 7096 7097 A side-channel attack was found which makes use of cache-bank conflicts on 7098 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 7099 of RSA keys. The ability to exploit this issue is limited as it relies on 7100 an attacker who has control of code in a thread running on the same 7101 hyper-threaded core as the victim thread which is performing decryptions. 7102 7103 This issue was reported to OpenSSL by Yuval Yarom, The University of 7104 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 7105 Nadia Heninger, University of Pennsylvania with more information at 7106 <http://cachebleed.info>. 7107 ([CVE-2016-0702]) 7108 7109 *Andy Polyakov* 7110 7111 * Change the req command to generate a 2048-bit RSA/DSA key by default, 7112 if no keysize is specified with default_bits. This fixes an 7113 omission in an earlier change that changed all RSA/DSA key generation 7114 commands to use 2048 bits by default. 7115 7116 *Emilia Käsper* 7117 7118### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 7119 7120 * Protection for DH small subgroup attacks 7121 7122 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 7123 switched on by default and cannot be disabled. This could have some 7124 performance impact. 7125 7126 *Matt Caswell* 7127 7128 * SSLv2 doesn't block disabled ciphers 7129 7130 A malicious client can negotiate SSLv2 ciphers that have been disabled on 7131 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 7132 been disabled, provided that the SSLv2 protocol was not also disabled via 7133 SSL_OP_NO_SSLv2. 7134 7135 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 7136 and Sebastian Schinzel. 7137 ([CVE-2015-3197]) 7138 7139 *Viktor Dukhovni* 7140 7141 * Reject DH handshakes with parameters shorter than 1024 bits. 7142 7143 *Kurt Roeckx* 7144 7145### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 7146 7147 * Certificate verify crash with missing PSS parameter 7148 7149 The signature verification routines will crash with a NULL pointer 7150 dereference if presented with an ASN.1 signature using the RSA PSS 7151 algorithm and absent mask generation function parameter. Since these 7152 routines are used to verify certificate signature algorithms this can be 7153 used to crash any certificate verification operation and exploited in a 7154 DoS attack. Any application which performs certificate verification is 7155 vulnerable including OpenSSL clients and servers which enable client 7156 authentication. 7157 7158 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7159 ([CVE-2015-3194]) 7160 7161 *Stephen Henson* 7162 7163 * X509_ATTRIBUTE memory leak 7164 7165 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7166 memory. This structure is used by the PKCS#7 and CMS routines so any 7167 application which reads PKCS#7 or CMS data from untrusted sources is 7168 affected. SSL/TLS is not affected. 7169 7170 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7171 libFuzzer. 7172 ([CVE-2015-3195]) 7173 7174 *Stephen Henson* 7175 7176 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7177 This changes the decoding behaviour for some invalid messages, 7178 though the change is mostly in the more lenient direction, and 7179 legacy behaviour is preserved as much as possible. 7180 7181 *Emilia Käsper* 7182 7183 * In DSA_generate_parameters_ex, if the provided seed is too short, 7184 use a random seed, as already documented. 7185 7186 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7187 7188### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7189 7190 * Alternate chains certificate forgery 7191 7192 During certificate verfification, OpenSSL will attempt to find an 7193 alternative certificate chain if the first attempt to build such a chain 7194 fails. An error in the implementation of this logic can mean that an 7195 attacker could cause certain checks on untrusted certificates to be 7196 bypassed, such as the CA flag, enabling them to use a valid leaf 7197 certificate to act as a CA and "issue" an invalid certificate. 7198 7199 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7200 (Google/BoringSSL). 7201 ([CVE-2015-1793]) 7202 7203 *Matt Caswell* 7204 7205 * Race condition handling PSK identify hint 7206 7207 If PSK identity hints are received by a multi-threaded client then 7208 the values are wrongly updated in the parent SSL_CTX structure. This can 7209 result in a race condition potentially leading to a double free of the 7210 identify hint data. 7211 ([CVE-2015-3196]) 7212 7213 *Stephen Henson* 7214 7215### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7216 7217 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7218 incompatibility in the handling of HMAC. The previous ABI has now been 7219 restored. 7220 7221### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7222 7223 * Malformed ECParameters causes infinite loop 7224 7225 When processing an ECParameters structure OpenSSL enters an infinite loop 7226 if the curve specified is over a specially malformed binary polynomial 7227 field. 7228 7229 This can be used to perform denial of service against any 7230 system which processes public keys, certificate requests or 7231 certificates. This includes TLS clients and TLS servers with 7232 client authentication enabled. 7233 7234 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7235 ([CVE-2015-1788]) 7236 7237 *Andy Polyakov* 7238 7239 * Exploitable out-of-bounds read in X509_cmp_time 7240 7241 X509_cmp_time does not properly check the length of the ASN1_TIME 7242 string and can read a few bytes out of bounds. In addition, 7243 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7244 time string. 7245 7246 An attacker can use this to craft malformed certificates and CRLs of 7247 various sizes and potentially cause a segmentation fault, resulting in 7248 a DoS on applications that verify certificates or CRLs. TLS clients 7249 that verify CRLs are affected. TLS clients and servers with client 7250 authentication enabled may be affected if they use custom verification 7251 callbacks. 7252 7253 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7254 independently by Hanno Böck. 7255 ([CVE-2015-1789]) 7256 7257 *Emilia Käsper* 7258 7259 * PKCS7 crash with missing EnvelopedContent 7260 7261 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7262 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7263 with missing content and trigger a NULL pointer dereference on parsing. 7264 7265 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7266 structures from untrusted sources are affected. OpenSSL clients and 7267 servers are not affected. 7268 7269 This issue was reported to OpenSSL by Michal Zalewski (Google). 7270 ([CVE-2015-1790]) 7271 7272 *Emilia Käsper* 7273 7274 * CMS verify infinite loop with unknown hash function 7275 7276 When verifying a signedData message the CMS code can enter an infinite loop 7277 if presented with an unknown hash function OID. This can be used to perform 7278 denial of service against any system which verifies signedData messages using 7279 the CMS code. 7280 This issue was reported to OpenSSL by Johannes Bauer. 7281 ([CVE-2015-1792]) 7282 7283 *Stephen Henson* 7284 7285 * Race condition handling NewSessionTicket 7286 7287 If a NewSessionTicket is received by a multi-threaded client when attempting to 7288 reuse a previous ticket then a race condition can occur potentially leading to 7289 a double free of the ticket data. 7290 ([CVE-2015-1791]) 7291 7292 *Matt Caswell* 7293 7294 * Reject DH handshakes with parameters shorter than 768 bits. 7295 7296 *Kurt Roeckx and Emilia Kasper* 7297 7298 * dhparam: generate 2048-bit parameters by default. 7299 7300 *Kurt Roeckx and Emilia Kasper* 7301 7302### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7303 7304 * Segmentation fault in ASN1_TYPE_cmp fix 7305 7306 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7307 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7308 certificate signature algorithm consistency this can be used to crash any 7309 certificate verification operation and exploited in a DoS attack. Any 7310 application which performs certificate verification is vulnerable including 7311 OpenSSL clients and servers which enable client authentication. 7312 ([CVE-2015-0286]) 7313 7314 *Stephen Henson* 7315 7316 * ASN.1 structure reuse memory corruption fix 7317 7318 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7319 memory corruption via an invalid write. Such reuse is and has been 7320 strongly discouraged and is believed to be rare. 7321 7322 Applications that parse structures containing CHOICE or ANY DEFINED BY 7323 components may be affected. Certificate parsing (d2i_X509 and related 7324 functions) are however not affected. OpenSSL clients and servers are 7325 not affected. 7326 ([CVE-2015-0287]) 7327 7328 *Stephen Henson* 7329 7330 * PKCS7 NULL pointer dereferences fix 7331 7332 The PKCS#7 parsing code does not handle missing outer ContentInfo 7333 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7334 missing content and trigger a NULL pointer dereference on parsing. 7335 7336 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7337 otherwise parse PKCS#7 structures from untrusted sources are 7338 affected. OpenSSL clients and servers are not affected. 7339 7340 This issue was reported to OpenSSL by Michal Zalewski (Google). 7341 ([CVE-2015-0289]) 7342 7343 *Emilia Käsper* 7344 7345 * DoS via reachable assert in SSLv2 servers fix 7346 7347 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7348 servers that both support SSLv2 and enable export cipher suites by sending 7349 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7350 7351 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7352 (OpenSSL development team). 7353 ([CVE-2015-0293]) 7354 7355 *Emilia Käsper* 7356 7357 * Use After Free following d2i_ECPrivatekey error fix 7358 7359 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7360 could cause a use after free condition. This, in turn, could cause a double 7361 free in several private key parsing functions (such as d2i_PrivateKey 7362 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7363 for applications that receive EC private keys from untrusted 7364 sources. This scenario is considered rare. 7365 7366 This issue was discovered by the BoringSSL project and fixed in their 7367 commit 517073cd4b. 7368 ([CVE-2015-0209]) 7369 7370 *Matt Caswell* 7371 7372 * X509_to_X509_REQ NULL pointer deref fix 7373 7374 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7375 the certificate key is invalid. This function is rarely used in practice. 7376 7377 This issue was discovered by Brian Carpenter. 7378 ([CVE-2015-0288]) 7379 7380 *Stephen Henson* 7381 7382 * Removed the export ciphers from the DEFAULT ciphers 7383 7384 *Kurt Roeckx* 7385 7386### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7387 7388 * Build fixes for the Windows and OpenVMS platforms 7389 7390 *Matt Caswell and Richard Levitte* 7391 7392### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7393 7394 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7395 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7396 dereference. This could lead to a Denial Of Service attack. Thanks to 7397 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7398 ([CVE-2014-3571]) 7399 7400 *Steve Henson* 7401 7402 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7403 dtls1_buffer_record function under certain conditions. In particular this 7404 could occur if an attacker sent repeated DTLS records with the same 7405 sequence number but for the next epoch. The memory leak could be exploited 7406 by an attacker in a Denial of Service attack through memory exhaustion. 7407 Thanks to Chris Mueller for reporting this issue. 7408 ([CVE-2015-0206]) 7409 7410 *Matt Caswell* 7411 7412 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7413 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7414 method would be set to NULL which could later result in a NULL pointer 7415 dereference. Thanks to Frank Schmirler for reporting this issue. 7416 ([CVE-2014-3569]) 7417 7418 *Kurt Roeckx* 7419 7420 * Abort handshake if server key exchange message is omitted for ephemeral 7421 ECDH ciphersuites. 7422 7423 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7424 reporting this issue. 7425 ([CVE-2014-3572]) 7426 7427 *Steve Henson* 7428 7429 * Remove non-export ephemeral RSA code on client and server. This code 7430 violated the TLS standard by allowing the use of temporary RSA keys in 7431 non-export ciphersuites and could be used by a server to effectively 7432 downgrade the RSA key length used to a value smaller than the server 7433 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7434 INRIA or reporting this issue. 7435 ([CVE-2015-0204]) 7436 7437 *Steve Henson* 7438 7439 * Fixed issue where DH client certificates are accepted without verification. 7440 An OpenSSL server will accept a DH certificate for client authentication 7441 without the certificate verify message. This effectively allows a client to 7442 authenticate without the use of a private key. This only affects servers 7443 which trust a client certificate authority which issues certificates 7444 containing DH keys: these are extremely rare and hardly ever encountered. 7445 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7446 this issue. 7447 ([CVE-2015-0205]) 7448 7449 *Steve Henson* 7450 7451 * Ensure that the session ID context of an SSL is updated when its 7452 SSL_CTX is updated via SSL_set_SSL_CTX. 7453 7454 The session ID context is typically set from the parent SSL_CTX, 7455 and can vary with the CTX. 7456 7457 *Adam Langley* 7458 7459 * Fix various certificate fingerprint issues. 7460 7461 By using non-DER or invalid encodings outside the signed portion of a 7462 certificate the fingerprint can be changed without breaking the signature. 7463 Although no details of the signed portion of the certificate can be changed 7464 this can cause problems with some applications: e.g. those using the 7465 certificate fingerprint for blacklists. 7466 7467 1. Reject signatures with non zero unused bits. 7468 7469 If the BIT STRING containing the signature has non zero unused bits reject 7470 the signature. All current signature algorithms require zero unused bits. 7471 7472 2. Check certificate algorithm consistency. 7473 7474 Check the AlgorithmIdentifier inside TBS matches the one in the 7475 certificate signature. NB: this will result in signature failure 7476 errors for some broken certificates. 7477 7478 Thanks to Konrad Kraszewski from Google for reporting this issue. 7479 7480 3. Check DSA/ECDSA signatures use DER. 7481 7482 Re-encode DSA/ECDSA signatures and compare with the original received 7483 signature. Return an error if there is a mismatch. 7484 7485 This will reject various cases including garbage after signature 7486 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7487 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7488 (negative or with leading zeroes). 7489 7490 Further analysis was conducted and fixes were developed by Stephen Henson 7491 of the OpenSSL core team. 7492 7493 ([CVE-2014-8275]) 7494 7495 *Steve Henson* 7496 7497 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7498 results on some platforms, including x86_64. This bug occurs at random 7499 with a very low probability, and is not known to be exploitable in any 7500 way, though its exact impact is difficult to determine. Thanks to Pieter 7501 Wuille (Blockstream) who reported this issue and also suggested an initial 7502 fix. Further analysis was conducted by the OpenSSL development team and 7503 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7504 the OpenSSL core team. 7505 ([CVE-2014-3570]) 7506 7507 *Andy Polyakov* 7508 7509 * Do not resume sessions on the server if the negotiated protocol 7510 version does not match the session's version. Resuming with a different 7511 version, while not strictly forbidden by the RFC, is of questionable 7512 sanity and breaks all known clients. 7513 7514 *David Benjamin, Emilia Käsper* 7515 7516 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7517 early CCS messages during renegotiation. (Note that because 7518 renegotiation is encrypted, this early CCS was not exploitable.) 7519 7520 *Emilia Käsper* 7521 7522 * Tighten client-side session ticket handling during renegotiation: 7523 ensure that the client only accepts a session ticket if the server sends 7524 the extension anew in the ServerHello. Previously, a TLS client would 7525 reuse the old extension state and thus accept a session ticket if one was 7526 announced in the initial ServerHello. 7527 7528 Similarly, ensure that the client requires a session ticket if one 7529 was advertised in the ServerHello. Previously, a TLS client would 7530 ignore a missing NewSessionTicket message. 7531 7532 *Emilia Käsper* 7533 7534### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7535 7536 * SRTP Memory Leak. 7537 7538 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7539 sends a carefully crafted handshake message, to cause OpenSSL to fail 7540 to free up to 64k of memory causing a memory leak. This could be 7541 exploited in a Denial Of Service attack. This issue affects OpenSSL 7542 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7543 whether SRTP is used or configured. Implementations of OpenSSL that 7544 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7545 7546 The fix was developed by the OpenSSL team. 7547 ([CVE-2014-3513]) 7548 7549 *OpenSSL team* 7550 7551 * Session Ticket Memory Leak. 7552 7553 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7554 integrity of that ticket is first verified. In the event of a session 7555 ticket integrity check failing, OpenSSL will fail to free memory 7556 causing a memory leak. By sending a large number of invalid session 7557 tickets an attacker could exploit this issue in a Denial Of Service 7558 attack. 7559 ([CVE-2014-3567]) 7560 7561 *Steve Henson* 7562 7563 * Build option no-ssl3 is incomplete. 7564 7565 When OpenSSL is configured with "no-ssl3" as a build option, servers 7566 could accept and complete a SSL 3.0 handshake, and clients could be 7567 configured to send them. 7568 ([CVE-2014-3568]) 7569 7570 *Akamai and the OpenSSL team* 7571 7572 * Add support for TLS_FALLBACK_SCSV. 7573 Client applications doing fallback retries should call 7574 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7575 ([CVE-2014-3566]) 7576 7577 *Adam Langley, Bodo Moeller* 7578 7579 * Add additional DigestInfo checks. 7580 7581 Re-encode DigestInto in DER and check against the original when 7582 verifying RSA signature: this will reject any improperly encoded 7583 DigestInfo structures. 7584 7585 Note: this is a precautionary measure and no attacks are currently known. 7586 7587 *Steve Henson* 7588 7589### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7590 7591 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7592 SRP code can be overrun an internal buffer. Add sanity check that 7593 g, A, B < N to SRP code. 7594 7595 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7596 Group for discovering this issue. 7597 ([CVE-2014-3512]) 7598 7599 *Steve Henson* 7600 7601 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7602 TLS 1.0 instead of higher protocol versions when the ClientHello message 7603 is badly fragmented. This allows a man-in-the-middle attacker to force a 7604 downgrade to TLS 1.0 even if both the server and the client support a 7605 higher protocol version, by modifying the client's TLS records. 7606 7607 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7608 researching this issue. 7609 ([CVE-2014-3511]) 7610 7611 *David Benjamin* 7612 7613 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7614 to a denial of service attack. A malicious server can crash the client 7615 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7616 ciphersuite and sending carefully crafted handshake messages. 7617 7618 Thanks to Felix Gröbert (Google) for discovering and researching this 7619 issue. 7620 ([CVE-2014-3510]) 7621 7622 *Emilia Käsper* 7623 7624 * By sending carefully crafted DTLS packets an attacker could cause openssl 7625 to leak memory. This can be exploited through a Denial of Service attack. 7626 Thanks to Adam Langley for discovering and researching this issue. 7627 ([CVE-2014-3507]) 7628 7629 *Adam Langley* 7630 7631 * An attacker can force openssl to consume large amounts of memory whilst 7632 processing DTLS handshake messages. This can be exploited through a 7633 Denial of Service attack. 7634 Thanks to Adam Langley for discovering and researching this issue. 7635 ([CVE-2014-3506]) 7636 7637 *Adam Langley* 7638 7639 * An attacker can force an error condition which causes openssl to crash 7640 whilst processing DTLS packets due to memory being freed twice. This 7641 can be exploited through a Denial of Service attack. 7642 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7643 this issue. 7644 ([CVE-2014-3505]) 7645 7646 *Adam Langley* 7647 7648 * If a multithreaded client connects to a malicious server using a resumed 7649 session and the server sends an ec point format extension it could write 7650 up to 255 bytes to freed memory. 7651 7652 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7653 issue. 7654 ([CVE-2014-3509]) 7655 7656 *Gabor Tyukasz* 7657 7658 * A malicious server can crash an OpenSSL client with a null pointer 7659 dereference (read) by specifying an SRP ciphersuite even though it was not 7660 properly negotiated with the client. This can be exploited through a 7661 Denial of Service attack. 7662 7663 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7664 discovering and researching this issue. 7665 ([CVE-2014-5139]) 7666 7667 *Steve Henson* 7668 7669 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7670 X509_name_oneline, X509_name_print_ex et al. to leak some information 7671 from the stack. Applications may be affected if they echo pretty printing 7672 output to the attacker. 7673 7674 Thanks to Ivan Fratric (Google) for discovering this issue. 7675 ([CVE-2014-3508]) 7676 7677 *Emilia Käsper, and Steve Henson* 7678 7679 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7680 for corner cases. (Certain input points at infinity could lead to 7681 bogus results, with non-infinity inputs mapped to infinity too.) 7682 7683 *Bodo Moeller* 7684 7685### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7686 7687 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7688 handshake can force the use of weak keying material in OpenSSL 7689 SSL/TLS clients and servers. 7690 7691 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7692 researching this issue. ([CVE-2014-0224]) 7693 7694 *KIKUCHI Masashi, Steve Henson* 7695 7696 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7697 OpenSSL DTLS client the code can be made to recurse eventually crashing 7698 in a DoS attack. 7699 7700 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7701 ([CVE-2014-0221]) 7702 7703 *Imre Rad, Steve Henson* 7704 7705 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7706 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7707 client or server. This is potentially exploitable to run arbitrary 7708 code on a vulnerable client or server. 7709 7710 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7711 7712 *Jüri Aedla, Steve Henson* 7713 7714 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7715 are subject to a denial of service attack. 7716 7717 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7718 this issue. ([CVE-2014-3470]) 7719 7720 *Felix Gröbert, Ivan Fratric, Steve Henson* 7721 7722 * Harmonize version and its documentation. -f flag is used to display 7723 compilation flags. 7724 7725 *mancha <mancha1@zoho.com>* 7726 7727 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7728 in i2d_ECPrivateKey. 7729 7730 *mancha <mancha1@zoho.com>* 7731 7732 * Fix some double frees. These are not thought to be exploitable. 7733 7734 *mancha <mancha1@zoho.com>* 7735 7736### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7737 7738 * A missing bounds check in the handling of the TLS heartbeat extension 7739 can be used to reveal up to 64k of memory to a connected client or 7740 server. 7741 7742 Thanks for Neel Mehta of Google Security for discovering this bug and to 7743 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7744 preparing the fix ([CVE-2014-0160]) 7745 7746 *Adam Langley, Bodo Moeller* 7747 7748 * Fix for the attack described in the paper "Recovering OpenSSL 7749 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7750 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7751 <http://eprint.iacr.org/2014/140> 7752 7753 Thanks to Yuval Yarom and Naomi Benger for discovering this 7754 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7755 7756 *Yuval Yarom and Naomi Benger* 7757 7758 * TLS pad extension: draft-agl-tls-padding-03 7759 7760 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7761 TLS client Hello record length value would otherwise be > 255 and 7762 less that 512 pad with a dummy extension containing zeroes so it 7763 is at least 512 bytes long. 7764 7765 *Adam Langley, Steve Henson* 7766 7767### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7768 7769 * Fix for TLS record tampering bug. A carefully crafted invalid 7770 handshake could crash OpenSSL with a NULL pointer exception. 7771 Thanks to Anton Johansson for reporting this issues. 7772 ([CVE-2013-4353]) 7773 7774 * Keep original DTLS digest and encryption contexts in retransmission 7775 structures so we can use the previous session parameters if they need 7776 to be resent. ([CVE-2013-6450]) 7777 7778 *Steve Henson* 7779 7780 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 7781 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 7782 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 7783 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 7784 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 7785 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 7786 7787 *Rob Stradling, Adam Langley* 7788 7789### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 7790 7791 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 7792 supporting platforms or when small records were transferred. 7793 7794 *Andy Polyakov, Steve Henson* 7795 7796### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 7797 7798 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 7799 7800 This addresses the flaw in CBC record processing discovered by 7801 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 7802 at: <http://www.isg.rhul.ac.uk/tls/> 7803 7804 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 7805 Security Group at Royal Holloway, University of London 7806 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 7807 Emilia Käsper for the initial patch. 7808 ([CVE-2013-0169]) 7809 7810 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 7811 7812 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 7813 ciphersuites which can be exploited in a denial of service attack. 7814 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 7815 and detecting this bug and to Wolfgang Ettlinger 7816 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 7817 ([CVE-2012-2686]) 7818 7819 *Adam Langley* 7820 7821 * Return an error when checking OCSP signatures when key is NULL. 7822 This fixes a DoS attack. ([CVE-2013-0166]) 7823 7824 *Steve Henson* 7825 7826 * Make openssl verify return errors. 7827 7828 *Chris Palmer <palmer@google.com> and Ben Laurie* 7829 7830 * Call OCSP Stapling callback after ciphersuite has been chosen, so 7831 the right response is stapled. Also change SSL_get_certificate() 7832 so it returns the certificate actually sent. 7833 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 7834 7835 *Rob Stradling <rob.stradling@comodo.com>* 7836 7837 * Fix possible deadlock when decoding public keys. 7838 7839 *Steve Henson* 7840 7841 * Don't use TLS 1.0 record version number in initial client hello 7842 if renegotiating. 7843 7844 *Steve Henson* 7845 7846### Changes between 1.0.1b and 1.0.1c [10 May 2012] 7847 7848 * Sanity check record length before skipping explicit IV in TLS 7849 1.2, 1.1 and DTLS to fix DoS attack. 7850 7851 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 7852 fuzzing as a service testing platform. 7853 ([CVE-2012-2333]) 7854 7855 *Steve Henson* 7856 7857 * Initialise tkeylen properly when encrypting CMS messages. 7858 Thanks to Solar Designer of Openwall for reporting this issue. 7859 7860 *Steve Henson* 7861 7862 * In FIPS mode don't try to use composite ciphers as they are not 7863 approved. 7864 7865 *Steve Henson* 7866 7867### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 7868 7869 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 7870 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 7871 mean any application compiled against OpenSSL 1.0.0 headers setting 7872 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 7873 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 7874 0x10000000L Any application which was previously compiled against 7875 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 7876 will need to be recompiled as a result. Letting be results in 7877 inability to disable specifically TLS 1.1 and in client context, 7878 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 7879 7880 *Steve Henson* 7881 7882 * In order to ensure interoperability SSL_OP_NO_protocolX does not 7883 disable just protocol X, but all protocols above X *if* there are 7884 protocols *below* X still enabled. In more practical terms it means 7885 that if application wants to disable TLS1.0 in favor of TLS1.1 and 7886 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 7887 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 7888 client side. 7889 7890 *Andy Polyakov* 7891 7892### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 7893 7894 * Check for potentially exploitable overflows in asn1_d2i_read_bio 7895 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 7896 in CRYPTO_realloc_clean. 7897 7898 Thanks to Tavis Ormandy, Google Security Team, for discovering this 7899 issue and to Adam Langley <agl@chromium.org> for fixing it. 7900 ([CVE-2012-2110]) 7901 7902 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 7903 7904 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 7905 7906 *Adam Langley* 7907 7908 * Workarounds for some broken servers that "hang" if a client hello 7909 record length exceeds 255 bytes. 7910 7911 1. Do not use record version number > TLS 1.0 in initial client 7912 hello: some (but not all) hanging servers will now work. 7913 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 7914 the number of ciphers sent in the client hello. This should be 7915 set to an even number, such as 50, for example by passing: 7916 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 7917 Most broken servers should now work. 7918 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 7919 TLS 1.2 client support entirely. 7920 7921 *Steve Henson* 7922 7923 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 7924 7925 *Andy Polyakov* 7926 7927### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 7928 7929 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 7930 STRING form instead of a DigestInfo. 7931 7932 *Steve Henson* 7933 7934 * The format used for MDC2 RSA signatures is inconsistent between EVP 7935 and the RSA_sign/RSA_verify functions. This was made more apparent when 7936 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 7937 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 7938 the correct format in RSA_verify so both forms transparently work. 7939 7940 *Steve Henson* 7941 7942 * Some servers which support TLS 1.0 can choke if we initially indicate 7943 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 7944 encrypted premaster secret. As a workaround use the maximum permitted 7945 client version in client hello, this should keep such servers happy 7946 and still work with previous versions of OpenSSL. 7947 7948 *Steve Henson* 7949 7950 * Add support for TLS/DTLS heartbeats. 7951 7952 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7953 7954 * Add support for SCTP. 7955 7956 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7957 7958 * Improved PRNG seeding for VOS. 7959 7960 *Paul Green <Paul.Green@stratus.com>* 7961 7962 * Extensive assembler packs updates, most notably: 7963 7964 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 7965 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 7966 - x86_64: bit-sliced AES implementation; 7967 - ARM: NEON support, contemporary platforms optimizations; 7968 - s390x: z196 support; 7969 - `*`: GHASH and GF(2^m) multiplication implementations; 7970 7971 *Andy Polyakov* 7972 7973 * Make TLS-SRP code conformant with RFC 5054 API cleanup 7974 (removal of unnecessary code) 7975 7976 *Peter Sylvester <peter.sylvester@edelweb.fr>* 7977 7978 * Add TLS key material exporter from RFC 5705. 7979 7980 *Eric Rescorla* 7981 7982 * Add DTLS-SRTP negotiation from RFC 5764. 7983 7984 *Eric Rescorla* 7985 7986 * Add Next Protocol Negotiation, 7987 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 7988 disabled with a no-npn flag to config or Configure. Code donated 7989 by Google. 7990 7991 *Adam Langley <agl@google.com> and Ben Laurie* 7992 7993 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 7994 NIST-P256, NIST-P521, with constant-time single point multiplication on 7995 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 7996 required to use this (present in gcc 4.4 and later, for 64-bit builds). 7997 Code made available under Apache License version 2.0. 7998 7999 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 8000 line to include this in your build of OpenSSL, and run "make depend" (or 8001 "make update"). This enables the following EC_METHODs: 8002 8003 EC_GFp_nistp224_method() 8004 EC_GFp_nistp256_method() 8005 EC_GFp_nistp521_method() 8006 8007 EC_GROUP_new_by_curve_name() will automatically use these (while 8008 EC_GROUP_new_curve_GFp() currently prefers the more flexible 8009 implementations). 8010 8011 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 8012 8013 * Use type ossl_ssize_t instead of ssize_t which isn't available on 8014 all platforms. Move ssize_t definition from e_os.h to the public 8015 header file e_os2.h as it now appears in public header file cms.h 8016 8017 *Steve Henson* 8018 8019 * New -sigopt option to the ca, req and x509 utilities. Additional 8020 signature parameters can be passed using this option and in 8021 particular PSS. 8022 8023 *Steve Henson* 8024 8025 * Add RSA PSS signing function. This will generate and set the 8026 appropriate AlgorithmIdentifiers for PSS based on those in the 8027 corresponding EVP_MD_CTX structure. No application support yet. 8028 8029 *Steve Henson* 8030 8031 * Support for companion algorithm specific ASN1 signing routines. 8032 New function ASN1_item_sign_ctx() signs a pre-initialised 8033 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 8034 the appropriate parameters. 8035 8036 *Steve Henson* 8037 8038 * Add new algorithm specific ASN1 verification initialisation function 8039 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 8040 handling will be the same no matter what EVP_PKEY_METHOD is used. 8041 Add a PSS handler to support verification of PSS signatures: checked 8042 against a number of sample certificates. 8043 8044 *Steve Henson* 8045 8046 * Add signature printing for PSS. Add PSS OIDs. 8047 8048 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 8049 8050 * Add algorithm specific signature printing. An individual ASN1 method 8051 can now print out signatures instead of the standard hex dump. 8052 8053 More complex signatures (e.g. PSS) can print out more meaningful 8054 information. Include DSA version that prints out the signature 8055 parameters r, s. 8056 8057 *Steve Henson* 8058 8059 * Password based recipient info support for CMS library: implementing 8060 RFC3211. 8061 8062 *Steve Henson* 8063 8064 * Split password based encryption into PBES2 and PBKDF2 functions. This 8065 neatly separates the code into cipher and PBE sections and is required 8066 for some algorithms that split PBES2 into separate pieces (such as 8067 password based CMS). 8068 8069 *Steve Henson* 8070 8071 * Session-handling fixes: 8072 - Fix handling of connections that are resuming with a session ID, 8073 but also support Session Tickets. 8074 - Fix a bug that suppressed issuing of a new ticket if the client 8075 presented a ticket with an expired session. 8076 - Try to set the ticket lifetime hint to something reasonable. 8077 - Make tickets shorter by excluding irrelevant information. 8078 - On the client side, don't ignore renewed tickets. 8079 8080 *Adam Langley, Bodo Moeller (Google)* 8081 8082 * Fix PSK session representation. 8083 8084 *Bodo Moeller* 8085 8086 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 8087 8088 This work was sponsored by Intel. 8089 8090 *Andy Polyakov* 8091 8092 * Add GCM support to TLS library. Some custom code is needed to split 8093 the IV between the fixed (from PRF) and explicit (from TLS record) 8094 portions. This adds all GCM ciphersuites supported by RFC5288 and 8095 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 8096 add a special AESGCM string for GCM only. 8097 8098 *Steve Henson* 8099 8100 * Expand range of ctrls for AES GCM. Permit setting invocation 8101 field on decrypt and retrieval of invocation field only on encrypt. 8102 8103 *Steve Henson* 8104 8105 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 8106 As required by RFC5289 these ciphersuites cannot be used if for 8107 versions of TLS earlier than 1.2. 8108 8109 *Steve Henson* 8110 8111 * For FIPS capable OpenSSL interpret a NULL default public key method 8112 as unset and return the appropriate default but do *not* set the default. 8113 This means we can return the appropriate method in applications that 8114 switch between FIPS and non-FIPS modes. 8115 8116 *Steve Henson* 8117 8118 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 8119 ENGINE is used then we cannot handle that in the FIPS module so we 8120 keep original code iff non-FIPS operations are allowed. 8121 8122 *Steve Henson* 8123 8124 * Add -attime option to openssl utilities. 8125 8126 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 8127 8128 * Redirect DSA and DH operations to FIPS module in FIPS mode. 8129 8130 *Steve Henson* 8131 8132 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 8133 FIPS EC methods unconditionally for now. 8134 8135 *Steve Henson* 8136 8137 * New build option no-ec2m to disable characteristic 2 code. 8138 8139 *Steve Henson* 8140 8141 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 8142 all cases can be covered as some introduce binary incompatibilities. 8143 8144 *Steve Henson* 8145 8146 * Redirect RSA operations to FIPS module including keygen, 8147 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 8148 8149 *Steve Henson* 8150 8151 * Add similar low-level API blocking to ciphers. 8152 8153 *Steve Henson* 8154 8155 * low-level digest APIs are not approved in FIPS mode: any attempt 8156 to use these will cause a fatal error. Applications that *really* want 8157 to use them can use the `private_*` version instead. 8158 8159 *Steve Henson* 8160 8161 * Redirect cipher operations to FIPS module for FIPS builds. 8162 8163 *Steve Henson* 8164 8165 * Redirect digest operations to FIPS module for FIPS builds. 8166 8167 *Steve Henson* 8168 8169 * Update build system to add "fips" flag which will link in fipscanister.o 8170 for static and shared library builds embedding a signature if needed. 8171 8172 *Steve Henson* 8173 8174 * Output TLS supported curves in preference order instead of numerical 8175 order. This is currently hardcoded for the highest order curves first. 8176 This should be configurable so applications can judge speed vs strength. 8177 8178 *Steve Henson* 8179 8180 * Add TLS v1.2 server support for client authentication. 8181 8182 *Steve Henson* 8183 8184 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8185 and enable MD5. 8186 8187 *Steve Henson* 8188 8189 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8190 FIPS modules versions. 8191 8192 *Steve Henson* 8193 8194 * Add TLS v1.2 client side support for client authentication. Keep cache 8195 of handshake records longer as we don't know the hash algorithm to use 8196 until after the certificate request message is received. 8197 8198 *Steve Henson* 8199 8200 * Initial TLS v1.2 client support. Add a default signature algorithms 8201 extension including all the algorithms we support. Parse new signature 8202 format in client key exchange. Relax some ECC signing restrictions for 8203 TLS v1.2 as indicated in RFC5246. 8204 8205 *Steve Henson* 8206 8207 * Add server support for TLS v1.2 signature algorithms extension. Switch 8208 to new signature format when needed using client digest preference. 8209 All server ciphersuites should now work correctly in TLS v1.2. No client 8210 support yet and no support for client certificates. 8211 8212 *Steve Henson* 8213 8214 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8215 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8216 ciphersuites. At present only RSA key exchange ciphersuites work with 8217 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8218 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8219 and version checking. 8220 8221 *Steve Henson* 8222 8223 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8224 with this defined it will not be affected by any changes to ssl internal 8225 structures. Add several utility functions to allow openssl application 8226 to work with OPENSSL_NO_SSL_INTERN defined. 8227 8228 *Steve Henson* 8229 8230 * A long standing patch to add support for SRP from EdelWeb (Peter 8231 Sylvester and Christophe Renou) was integrated. 8232 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8233 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8234 Ben Laurie* 8235 8236 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8237 8238 *Steve Henson* 8239 8240 * Permit abbreviated handshakes when renegotiating using the function 8241 SSL_renegotiate_abbreviated(). 8242 8243 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8244 8245 * Add call to ENGINE_register_all_complete() to 8246 ENGINE_load_builtin_engines(), so some implementations get used 8247 automatically instead of needing explicit application support. 8248 8249 *Steve Henson* 8250 8251 * Add support for TLS key exporter as described in RFC5705. 8252 8253 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8254 8255 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8256 a few changes are required: 8257 8258 Add SSL_OP_NO_TLSv1_1 flag. 8259 Add TLSv1_1 methods. 8260 Update version checking logic to handle version 1.1. 8261 Add explicit IV handling (ported from DTLS code). 8262 Add command line options to s_client/s_server. 8263 8264 *Steve Henson* 8265 8266OpenSSL 1.0.0 8267------------- 8268 8269### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8270 8271 * X509_ATTRIBUTE memory leak 8272 8273 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8274 memory. This structure is used by the PKCS#7 and CMS routines so any 8275 application which reads PKCS#7 or CMS data from untrusted sources is 8276 affected. SSL/TLS is not affected. 8277 8278 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8279 libFuzzer. 8280 ([CVE-2015-3195]) 8281 8282 *Stephen Henson* 8283 8284 * Race condition handling PSK identify hint 8285 8286 If PSK identity hints are received by a multi-threaded client then 8287 the values are wrongly updated in the parent SSL_CTX structure. This can 8288 result in a race condition potentially leading to a double free of the 8289 identify hint data. 8290 ([CVE-2015-3196]) 8291 8292 *Stephen Henson* 8293 8294### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8295 8296 * Malformed ECParameters causes infinite loop 8297 8298 When processing an ECParameters structure OpenSSL enters an infinite loop 8299 if the curve specified is over a specially malformed binary polynomial 8300 field. 8301 8302 This can be used to perform denial of service against any 8303 system which processes public keys, certificate requests or 8304 certificates. This includes TLS clients and TLS servers with 8305 client authentication enabled. 8306 8307 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8308 ([CVE-2015-1788]) 8309 8310 *Andy Polyakov* 8311 8312 * Exploitable out-of-bounds read in X509_cmp_time 8313 8314 X509_cmp_time does not properly check the length of the ASN1_TIME 8315 string and can read a few bytes out of bounds. In addition, 8316 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8317 time string. 8318 8319 An attacker can use this to craft malformed certificates and CRLs of 8320 various sizes and potentially cause a segmentation fault, resulting in 8321 a DoS on applications that verify certificates or CRLs. TLS clients 8322 that verify CRLs are affected. TLS clients and servers with client 8323 authentication enabled may be affected if they use custom verification 8324 callbacks. 8325 8326 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8327 independently by Hanno Böck. 8328 ([CVE-2015-1789]) 8329 8330 *Emilia Käsper* 8331 8332 * PKCS7 crash with missing EnvelopedContent 8333 8334 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8335 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8336 with missing content and trigger a NULL pointer dereference on parsing. 8337 8338 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8339 structures from untrusted sources are affected. OpenSSL clients and 8340 servers are not affected. 8341 8342 This issue was reported to OpenSSL by Michal Zalewski (Google). 8343 ([CVE-2015-1790]) 8344 8345 *Emilia Käsper* 8346 8347 * CMS verify infinite loop with unknown hash function 8348 8349 When verifying a signedData message the CMS code can enter an infinite loop 8350 if presented with an unknown hash function OID. This can be used to perform 8351 denial of service against any system which verifies signedData messages using 8352 the CMS code. 8353 This issue was reported to OpenSSL by Johannes Bauer. 8354 ([CVE-2015-1792]) 8355 8356 *Stephen Henson* 8357 8358 * Race condition handling NewSessionTicket 8359 8360 If a NewSessionTicket is received by a multi-threaded client when attempting to 8361 reuse a previous ticket then a race condition can occur potentially leading to 8362 a double free of the ticket data. 8363 ([CVE-2015-1791]) 8364 8365 *Matt Caswell* 8366 8367### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8368 8369 * Segmentation fault in ASN1_TYPE_cmp fix 8370 8371 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8372 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8373 certificate signature algorithm consistency this can be used to crash any 8374 certificate verification operation and exploited in a DoS attack. Any 8375 application which performs certificate verification is vulnerable including 8376 OpenSSL clients and servers which enable client authentication. 8377 ([CVE-2015-0286]) 8378 8379 *Stephen Henson* 8380 8381 * ASN.1 structure reuse memory corruption fix 8382 8383 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8384 memory corruption via an invalid write. Such reuse is and has been 8385 strongly discouraged and is believed to be rare. 8386 8387 Applications that parse structures containing CHOICE or ANY DEFINED BY 8388 components may be affected. Certificate parsing (d2i_X509 and related 8389 functions) are however not affected. OpenSSL clients and servers are 8390 not affected. 8391 ([CVE-2015-0287]) 8392 8393 *Stephen Henson* 8394 8395 * PKCS7 NULL pointer dereferences fix 8396 8397 The PKCS#7 parsing code does not handle missing outer ContentInfo 8398 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8399 missing content and trigger a NULL pointer dereference on parsing. 8400 8401 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8402 otherwise parse PKCS#7 structures from untrusted sources are 8403 affected. OpenSSL clients and servers are not affected. 8404 8405 This issue was reported to OpenSSL by Michal Zalewski (Google). 8406 ([CVE-2015-0289]) 8407 8408 *Emilia Käsper* 8409 8410 * DoS via reachable assert in SSLv2 servers fix 8411 8412 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8413 servers that both support SSLv2 and enable export cipher suites by sending 8414 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8415 8416 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8417 (OpenSSL development team). 8418 ([CVE-2015-0293]) 8419 8420 *Emilia Käsper* 8421 8422 * Use After Free following d2i_ECPrivatekey error fix 8423 8424 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8425 could cause a use after free condition. This, in turn, could cause a double 8426 free in several private key parsing functions (such as d2i_PrivateKey 8427 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8428 for applications that receive EC private keys from untrusted 8429 sources. This scenario is considered rare. 8430 8431 This issue was discovered by the BoringSSL project and fixed in their 8432 commit 517073cd4b. 8433 ([CVE-2015-0209]) 8434 8435 *Matt Caswell* 8436 8437 * X509_to_X509_REQ NULL pointer deref fix 8438 8439 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8440 the certificate key is invalid. This function is rarely used in practice. 8441 8442 This issue was discovered by Brian Carpenter. 8443 ([CVE-2015-0288]) 8444 8445 *Stephen Henson* 8446 8447 * Removed the export ciphers from the DEFAULT ciphers 8448 8449 *Kurt Roeckx* 8450 8451### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8452 8453 * Build fixes for the Windows and OpenVMS platforms 8454 8455 *Matt Caswell and Richard Levitte* 8456 8457### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8458 8459 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8460 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8461 dereference. This could lead to a Denial Of Service attack. Thanks to 8462 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8463 ([CVE-2014-3571]) 8464 8465 *Steve Henson* 8466 8467 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8468 dtls1_buffer_record function under certain conditions. In particular this 8469 could occur if an attacker sent repeated DTLS records with the same 8470 sequence number but for the next epoch. The memory leak could be exploited 8471 by an attacker in a Denial of Service attack through memory exhaustion. 8472 Thanks to Chris Mueller for reporting this issue. 8473 ([CVE-2015-0206]) 8474 8475 *Matt Caswell* 8476 8477 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8478 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8479 method would be set to NULL which could later result in a NULL pointer 8480 dereference. Thanks to Frank Schmirler for reporting this issue. 8481 ([CVE-2014-3569]) 8482 8483 *Kurt Roeckx* 8484 8485 * Abort handshake if server key exchange message is omitted for ephemeral 8486 ECDH ciphersuites. 8487 8488 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8489 reporting this issue. 8490 ([CVE-2014-3572]) 8491 8492 *Steve Henson* 8493 8494 * Remove non-export ephemeral RSA code on client and server. This code 8495 violated the TLS standard by allowing the use of temporary RSA keys in 8496 non-export ciphersuites and could be used by a server to effectively 8497 downgrade the RSA key length used to a value smaller than the server 8498 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8499 INRIA or reporting this issue. 8500 ([CVE-2015-0204]) 8501 8502 *Steve Henson* 8503 8504 * Fixed issue where DH client certificates are accepted without verification. 8505 An OpenSSL server will accept a DH certificate for client authentication 8506 without the certificate verify message. This effectively allows a client to 8507 authenticate without the use of a private key. This only affects servers 8508 which trust a client certificate authority which issues certificates 8509 containing DH keys: these are extremely rare and hardly ever encountered. 8510 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8511 this issue. 8512 ([CVE-2015-0205]) 8513 8514 *Steve Henson* 8515 8516 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8517 results on some platforms, including x86_64. This bug occurs at random 8518 with a very low probability, and is not known to be exploitable in any 8519 way, though its exact impact is difficult to determine. Thanks to Pieter 8520 Wuille (Blockstream) who reported this issue and also suggested an initial 8521 fix. Further analysis was conducted by the OpenSSL development team and 8522 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8523 the OpenSSL core team. 8524 ([CVE-2014-3570]) 8525 8526 *Andy Polyakov* 8527 8528 * Fix various certificate fingerprint issues. 8529 8530 By using non-DER or invalid encodings outside the signed portion of a 8531 certificate the fingerprint can be changed without breaking the signature. 8532 Although no details of the signed portion of the certificate can be changed 8533 this can cause problems with some applications: e.g. those using the 8534 certificate fingerprint for blacklists. 8535 8536 1. Reject signatures with non zero unused bits. 8537 8538 If the BIT STRING containing the signature has non zero unused bits reject 8539 the signature. All current signature algorithms require zero unused bits. 8540 8541 2. Check certificate algorithm consistency. 8542 8543 Check the AlgorithmIdentifier inside TBS matches the one in the 8544 certificate signature. NB: this will result in signature failure 8545 errors for some broken certificates. 8546 8547 Thanks to Konrad Kraszewski from Google for reporting this issue. 8548 8549 3. Check DSA/ECDSA signatures use DER. 8550 8551 Reencode DSA/ECDSA signatures and compare with the original received 8552 signature. Return an error if there is a mismatch. 8553 8554 This will reject various cases including garbage after signature 8555 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8556 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8557 (negative or with leading zeroes). 8558 8559 Further analysis was conducted and fixes were developed by Stephen Henson 8560 of the OpenSSL core team. 8561 8562 ([CVE-2014-8275]) 8563 8564 *Steve Henson* 8565 8566### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8567 8568 * Session Ticket Memory Leak. 8569 8570 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8571 integrity of that ticket is first verified. In the event of a session 8572 ticket integrity check failing, OpenSSL will fail to free memory 8573 causing a memory leak. By sending a large number of invalid session 8574 tickets an attacker could exploit this issue in a Denial Of Service 8575 attack. 8576 ([CVE-2014-3567]) 8577 8578 *Steve Henson* 8579 8580 * Build option no-ssl3 is incomplete. 8581 8582 When OpenSSL is configured with "no-ssl3" as a build option, servers 8583 could accept and complete a SSL 3.0 handshake, and clients could be 8584 configured to send them. 8585 ([CVE-2014-3568]) 8586 8587 *Akamai and the OpenSSL team* 8588 8589 * Add support for TLS_FALLBACK_SCSV. 8590 Client applications doing fallback retries should call 8591 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8592 ([CVE-2014-3566]) 8593 8594 *Adam Langley, Bodo Moeller* 8595 8596 * Add additional DigestInfo checks. 8597 8598 Reencode DigestInto in DER and check against the original when 8599 verifying RSA signature: this will reject any improperly encoded 8600 DigestInfo structures. 8601 8602 Note: this is a precautionary measure and no attacks are currently known. 8603 8604 *Steve Henson* 8605 8606### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8607 8608 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8609 to a denial of service attack. A malicious server can crash the client 8610 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8611 ciphersuite and sending carefully crafted handshake messages. 8612 8613 Thanks to Felix Gröbert (Google) for discovering and researching this 8614 issue. 8615 ([CVE-2014-3510]) 8616 8617 *Emilia Käsper* 8618 8619 * By sending carefully crafted DTLS packets an attacker could cause openssl 8620 to leak memory. This can be exploited through a Denial of Service attack. 8621 Thanks to Adam Langley for discovering and researching this issue. 8622 ([CVE-2014-3507]) 8623 8624 *Adam Langley* 8625 8626 * An attacker can force openssl to consume large amounts of memory whilst 8627 processing DTLS handshake messages. This can be exploited through a 8628 Denial of Service attack. 8629 Thanks to Adam Langley for discovering and researching this issue. 8630 ([CVE-2014-3506]) 8631 8632 *Adam Langley* 8633 8634 * An attacker can force an error condition which causes openssl to crash 8635 whilst processing DTLS packets due to memory being freed twice. This 8636 can be exploited through a Denial of Service attack. 8637 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8638 this issue. 8639 ([CVE-2014-3505]) 8640 8641 *Adam Langley* 8642 8643 * If a multithreaded client connects to a malicious server using a resumed 8644 session and the server sends an ec point format extension it could write 8645 up to 255 bytes to freed memory. 8646 8647 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8648 issue. 8649 ([CVE-2014-3509]) 8650 8651 *Gabor Tyukasz* 8652 8653 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8654 X509_name_oneline, X509_name_print_ex et al. to leak some information 8655 from the stack. Applications may be affected if they echo pretty printing 8656 output to the attacker. 8657 8658 Thanks to Ivan Fratric (Google) for discovering this issue. 8659 ([CVE-2014-3508]) 8660 8661 *Emilia Käsper, and Steve Henson* 8662 8663 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8664 for corner cases. (Certain input points at infinity could lead to 8665 bogus results, with non-infinity inputs mapped to infinity too.) 8666 8667 *Bodo Moeller* 8668 8669### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8670 8671 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8672 handshake can force the use of weak keying material in OpenSSL 8673 SSL/TLS clients and servers. 8674 8675 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8676 researching this issue. ([CVE-2014-0224]) 8677 8678 *KIKUCHI Masashi, Steve Henson* 8679 8680 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8681 OpenSSL DTLS client the code can be made to recurse eventually crashing 8682 in a DoS attack. 8683 8684 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8685 ([CVE-2014-0221]) 8686 8687 *Imre Rad, Steve Henson* 8688 8689 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8690 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8691 client or server. This is potentially exploitable to run arbitrary 8692 code on a vulnerable client or server. 8693 8694 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8695 8696 *Jüri Aedla, Steve Henson* 8697 8698 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8699 are subject to a denial of service attack. 8700 8701 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8702 this issue. ([CVE-2014-3470]) 8703 8704 *Felix Gröbert, Ivan Fratric, Steve Henson* 8705 8706 * Harmonize version and its documentation. -f flag is used to display 8707 compilation flags. 8708 8709 *mancha <mancha1@zoho.com>* 8710 8711 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8712 in i2d_ECPrivateKey. 8713 8714 *mancha <mancha1@zoho.com>* 8715 8716 * Fix some double frees. These are not thought to be exploitable. 8717 8718 *mancha <mancha1@zoho.com>* 8719 8720 * Fix for the attack described in the paper "Recovering OpenSSL 8721 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8722 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8723 <http://eprint.iacr.org/2014/140> 8724 8725 Thanks to Yuval Yarom and Naomi Benger for discovering this 8726 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8727 8728 *Yuval Yarom and Naomi Benger* 8729 8730### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8731 8732 * Keep original DTLS digest and encryption contexts in retransmission 8733 structures so we can use the previous session parameters if they need 8734 to be resent. ([CVE-2013-6450]) 8735 8736 *Steve Henson* 8737 8738 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8739 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8740 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8741 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8742 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8743 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8744 8745 *Rob Stradling, Adam Langley* 8746 8747### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8748 8749 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8750 8751 This addresses the flaw in CBC record processing discovered by 8752 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8753 at: <http://www.isg.rhul.ac.uk/tls/> 8754 8755 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8756 Security Group at Royal Holloway, University of London 8757 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8758 Emilia Käsper for the initial patch. 8759 ([CVE-2013-0169]) 8760 8761 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8762 8763 * Return an error when checking OCSP signatures when key is NULL. 8764 This fixes a DoS attack. ([CVE-2013-0166]) 8765 8766 *Steve Henson* 8767 8768 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8769 the right response is stapled. Also change SSL_get_certificate() 8770 so it returns the certificate actually sent. 8771 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8772 (This is a backport) 8773 8774 *Rob Stradling <rob.stradling@comodo.com>* 8775 8776 * Fix possible deadlock when decoding public keys. 8777 8778 *Steve Henson* 8779 8780### Changes between 1.0.0i and 1.0.0j [10 May 2012] 8781 8782[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 8783OpenSSL 1.0.1.] 8784 8785 * Sanity check record length before skipping explicit IV in DTLS 8786 to fix DoS attack. 8787 8788 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8789 fuzzing as a service testing platform. 8790 ([CVE-2012-2333]) 8791 8792 *Steve Henson* 8793 8794 * Initialise tkeylen properly when encrypting CMS messages. 8795 Thanks to Solar Designer of Openwall for reporting this issue. 8796 8797 *Steve Henson* 8798 8799### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 8800 8801 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8802 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8803 in CRYPTO_realloc_clean. 8804 8805 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8806 issue and to Adam Langley <agl@chromium.org> for fixing it. 8807 ([CVE-2012-2110]) 8808 8809 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8810 8811### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 8812 8813 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 8814 in CMS and PKCS7 code. When RSA decryption fails use a random key for 8815 content decryption and always return the same error. Note: this attack 8816 needs on average 2^20 messages so it only affects automated senders. The 8817 old behaviour can be re-enabled in the CMS code by setting the 8818 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 8819 an MMA defence is not necessary. 8820 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 8821 this issue. ([CVE-2012-0884]) 8822 8823 *Steve Henson* 8824 8825 * Fix CVE-2011-4619: make sure we really are receiving a 8826 client hello before rejecting multiple SGC restarts. Thanks to 8827 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 8828 8829 *Steve Henson* 8830 8831### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 8832 8833 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 8834 Thanks to Antonio Martin, Enterprise Secure Access Research and 8835 Development, Cisco Systems, Inc. for discovering this bug and 8836 preparing a fix. ([CVE-2012-0050]) 8837 8838 *Antonio Martin* 8839 8840### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 8841 8842 * Nadhem Alfardan and Kenny Paterson have discovered an extension 8843 of the Vaudenay padding oracle attack on CBC mode encryption 8844 which enables an efficient plaintext recovery attack against 8845 the OpenSSL implementation of DTLS. Their attack exploits timing 8846 differences arising during decryption processing. A research 8847 paper describing this attack can be found at: 8848 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 8849 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8850 Security Group at Royal Holloway, University of London 8851 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 8852 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 8853 for preparing the fix. ([CVE-2011-4108]) 8854 8855 *Robin Seggelmann, Michael Tuexen* 8856 8857 * Clear bytes used for block padding of SSL 3.0 records. 8858 ([CVE-2011-4576]) 8859 8860 *Adam Langley (Google)* 8861 8862 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 8863 Kadianakis <desnacked@gmail.com> for discovering this issue and 8864 Adam Langley for preparing the fix. ([CVE-2011-4619]) 8865 8866 *Adam Langley (Google)* 8867 8868 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 8869 8870 *Andrey Kulikov <amdeich@gmail.com>* 8871 8872 * Prevent malformed RFC3779 data triggering an assertion failure. 8873 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 8874 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 8875 8876 *Rob Austein <sra@hactrn.net>* 8877 8878 * Improved PRNG seeding for VOS. 8879 8880 *Paul Green <Paul.Green@stratus.com>* 8881 8882 * Fix ssl_ciph.c set-up race. 8883 8884 *Adam Langley (Google)* 8885 8886 * Fix spurious failures in ecdsatest.c. 8887 8888 *Emilia Käsper (Google)* 8889 8890 * Fix the BIO_f_buffer() implementation (which was mixing different 8891 interpretations of the `..._len` fields). 8892 8893 *Adam Langley (Google)* 8894 8895 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 8896 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 8897 threads won't reuse the same blinding coefficients. 8898 8899 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 8900 lock to call BN_BLINDING_invert_ex, and avoids one use of 8901 BN_BLINDING_update for each BN_BLINDING structure (previously, 8902 the last update always remained unused). 8903 8904 *Emilia Käsper (Google)* 8905 8906 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 8907 8908 *Bob Buckholz (Google)* 8909 8910### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 8911 8912 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 8913 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 8914 8915 *Kaspar Brand <ossl@velox.ch>* 8916 8917 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 8918 for multi-threaded use of ECDH. ([CVE-2011-3210]) 8919 8920 *Adam Langley (Google)* 8921 8922 * Fix x509_name_ex_d2i memory leak on bad inputs. 8923 8924 *Bodo Moeller* 8925 8926 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 8927 signature public key algorithm by using OID xref utilities instead. 8928 Before this you could only use some ECC ciphersuites with SHA1 only. 8929 8930 *Steve Henson* 8931 8932 * Add protection against ECDSA timing attacks as mentioned in the paper 8933 by Billy Bob Brumley and Nicola Tuveri, see: 8934 <http://eprint.iacr.org/2011/232.pdf> 8935 8936 *Billy Bob Brumley and Nicola Tuveri* 8937 8938### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 8939 8940 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 8941 8942 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 8943 8944 * Fix bug in string printing code: if *any* escaping is enabled we must 8945 escape the escape character (backslash) or the resulting string is 8946 ambiguous. 8947 8948 *Steve Henson* 8949 8950### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 8951 8952 * Disable code workaround for ancient and obsolete Netscape browsers 8953 and servers: an attacker can use it in a ciphersuite downgrade attack. 8954 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 8955 8956 *Steve Henson* 8957 8958 * Fixed J-PAKE implementation error, originally discovered by 8959 Sebastien Martini, further info and confirmation from Stefan 8960 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 8961 8962 *Ben Laurie* 8963 8964### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 8965 8966 * Fix extension code to avoid race conditions which can result in a buffer 8967 overrun vulnerability: resumed sessions must not be modified as they can 8968 be shared by multiple threads. CVE-2010-3864 8969 8970 *Steve Henson* 8971 8972 * Fix WIN32 build system to correctly link an ENGINE directory into 8973 a DLL. 8974 8975 *Steve Henson* 8976 8977### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 8978 8979 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 8980 ([CVE-2010-1633]) 8981 8982 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 8983 8984### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 8985 8986 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 8987 context. The operation can be customised via the ctrl mechanism in 8988 case ENGINEs want to include additional functionality. 8989 8990 *Steve Henson* 8991 8992 * Tolerate yet another broken PKCS#8 key format: private key value negative. 8993 8994 *Steve Henson* 8995 8996 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 8997 output hashes compatible with older versions of OpenSSL. 8998 8999 *Willy Weisz <weisz@vcpc.univie.ac.at>* 9000 9001 * Fix compression algorithm handling: if resuming a session use the 9002 compression algorithm of the resumed session instead of determining 9003 it from client hello again. Don't allow server to change algorithm. 9004 9005 *Steve Henson* 9006 9007 * Add load_crls() function to commands tidying load_certs() too. Add option 9008 to verify utility to allow additional CRLs to be included. 9009 9010 *Steve Henson* 9011 9012 * Update OCSP request code to permit adding custom headers to the request: 9013 some responders need this. 9014 9015 *Steve Henson* 9016 9017 * The function EVP_PKEY_sign() returns <=0 on error: check return code 9018 correctly. 9019 9020 *Julia Lawall <julia@diku.dk>* 9021 9022 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 9023 needlessly dereferenced structures, used obsolete functions and 9024 didn't handle all updated verify codes correctly. 9025 9026 *Steve Henson* 9027 9028 * Disable MD2 in the default configuration. 9029 9030 *Steve Henson* 9031 9032 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 9033 indicate the initial BIO being pushed or popped. This makes it possible 9034 to determine whether the BIO is the one explicitly called or as a result 9035 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 9036 it handles reference counts correctly and doesn't zero out the I/O bio 9037 when it is not being explicitly popped. WARNING: applications which 9038 included workarounds for the old buggy behaviour will need to be modified 9039 or they could free up already freed BIOs. 9040 9041 *Steve Henson* 9042 9043 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 9044 renaming to all platforms (within the 0.9.8 branch, this was 9045 done conditionally on Netware platforms to avoid a name clash). 9046 9047 *Guenter <lists@gknw.net>* 9048 9049 * Add ECDHE and PSK support to DTLS. 9050 9051 *Michael Tuexen <tuexen@fh-muenster.de>* 9052 9053 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 9054 be used on C++. 9055 9056 *Steve Henson* 9057 9058 * Add "missing" function EVP_MD_flags() (without this the only way to 9059 retrieve a digest flags is by accessing the structure directly. Update 9060 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 9061 or cipher is registered as in the "from" argument. Print out all 9062 registered digests in the dgst usage message instead of manually 9063 attempting to work them out. 9064 9065 *Steve Henson* 9066 9067 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 9068 this allows the use of compression and extensions. Change default cipher 9069 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 9070 by default unless an application cipher string requests it. 9071 9072 *Steve Henson* 9073 9074 * Alter match criteria in PKCS12_parse(). It used to try to use local 9075 key ids to find matching certificates and keys but some PKCS#12 files 9076 don't follow the (somewhat unwritten) rules and this strategy fails. 9077 Now just gather all certificates together and the first private key 9078 then look for the first certificate that matches the key. 9079 9080 *Steve Henson* 9081 9082 * Support use of registered digest and cipher names for dgst and cipher 9083 commands instead of having to add each one as a special case. So now 9084 you can do: 9085 9086 openssl sha256 foo 9087 9088 as well as: 9089 9090 openssl dgst -sha256 foo 9091 9092 and this works for ENGINE based algorithms too. 9093 9094 *Steve Henson* 9095 9096 * Update Gost ENGINE to support parameter files. 9097 9098 *Victor B. Wagner <vitus@cryptocom.ru>* 9099 9100 * Support GeneralizedTime in ca utility. 9101 9102 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 9103 9104 * Enhance the hash format used for certificate directory links. The new 9105 form uses the canonical encoding (meaning equivalent names will work 9106 even if they aren't identical) and uses SHA1 instead of MD5. This form 9107 is incompatible with the older format and as a result c_rehash should 9108 be used to rebuild symbolic links. 9109 9110 *Steve Henson* 9111 9112 * Make PKCS#8 the default write format for private keys, replacing the 9113 traditional format. This form is standardised, more secure and doesn't 9114 include an implicit MD5 dependency. 9115 9116 *Steve Henson* 9117 9118 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 9119 committed to OpenSSL should pass this lot as a minimum. 9120 9121 *Steve Henson* 9122 9123 * Add session ticket override functionality for use by EAP-FAST. 9124 9125 *Jouni Malinen <j@w1.fi>* 9126 9127 * Modify HMAC functions to return a value. Since these can be implemented 9128 in an ENGINE errors can occur. 9129 9130 *Steve Henson* 9131 9132 * Type-checked OBJ_bsearch_ex. 9133 9134 *Ben Laurie* 9135 9136 * Type-checked OBJ_bsearch. Also some constification necessitated 9137 by type-checking. Still to come: TXT_DB, bsearch(?), 9138 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 9139 CONF_VALUE. 9140 9141 *Ben Laurie* 9142 9143 * New function OPENSSL_gmtime_adj() to add a specific number of days and 9144 seconds to a tm structure directly, instead of going through OS 9145 specific date routines. This avoids any issues with OS routines such 9146 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 9147 and X509_time_adj_ex() to cover the extended range. The existing 9148 X509_time_adj() is still usable and will no longer have any date issues. 9149 9150 *Steve Henson* 9151 9152 * Delta CRL support. New use deltas option which will attempt to locate 9153 and search any appropriate delta CRLs available. 9154 9155 This work was sponsored by Google. 9156 9157 *Steve Henson* 9158 9159 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9160 code and add additional score elements. Validate alternate CRL paths 9161 as part of the CRL checking and indicate a new error "CRL path validation 9162 error" in this case. Applications wanting additional details can use 9163 the verify callback and check the new "parent" field. If this is not 9164 NULL CRL path validation is taking place. Existing applications won't 9165 see this because it requires extended CRL support which is off by 9166 default. 9167 9168 This work was sponsored by Google. 9169 9170 *Steve Henson* 9171 9172 * Support for freshest CRL extension. 9173 9174 This work was sponsored by Google. 9175 9176 *Steve Henson* 9177 9178 * Initial indirect CRL support. Currently only supported in the CRLs 9179 passed directly and not via lookup. Process certificate issuer 9180 CRL entry extension and lookup CRL entries by bother issuer name 9181 and serial number. Check and process CRL issuer entry in IDP extension. 9182 9183 This work was sponsored by Google. 9184 9185 *Steve Henson* 9186 9187 * Add support for distinct certificate and CRL paths. The CRL issuer 9188 certificate is validated separately in this case. Only enabled if 9189 an extended CRL support flag is set: this flag will enable additional 9190 CRL functionality in future. 9191 9192 This work was sponsored by Google. 9193 9194 *Steve Henson* 9195 9196 * Add support for policy mappings extension. 9197 9198 This work was sponsored by Google. 9199 9200 *Steve Henson* 9201 9202 * Fixes to pathlength constraint, self issued certificate handling, 9203 policy processing to align with RFC3280 and PKITS tests. 9204 9205 This work was sponsored by Google. 9206 9207 *Steve Henson* 9208 9209 * Support for name constraints certificate extension. DN, email, DNS 9210 and URI types are currently supported. 9211 9212 This work was sponsored by Google. 9213 9214 *Steve Henson* 9215 9216 * To cater for systems that provide a pointer-based thread ID rather 9217 than numeric, deprecate the current numeric thread ID mechanism and 9218 replace it with a structure and associated callback type. This 9219 mechanism allows a numeric "hash" to be extracted from a thread ID in 9220 either case, and on platforms where pointers are larger than 'long', 9221 mixing is done to help ensure the numeric 'hash' is usable even if it 9222 can't be guaranteed unique. The default mechanism is to use "&errno" 9223 as a pointer-based thread ID to distinguish between threads. 9224 9225 Applications that want to provide their own thread IDs should now use 9226 CRYPTO_THREADID_set_callback() to register a callback that will call 9227 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9228 9229 Note that ERR_remove_state() is now deprecated, because it is tied 9230 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9231 to free the current thread's error state should be replaced by 9232 ERR_remove_thread_state(NULL). 9233 9234 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9235 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9236 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9237 application was previously providing a numeric thread callback that 9238 was inappropriate for distinguishing threads, then uniqueness might 9239 have been obtained with &errno that happened immediately in the 9240 intermediate development versions of OpenSSL; this is no longer the 9241 case, the numeric thread callback will now override the automatic use 9242 of &errno.) 9243 9244 *Geoff Thorpe, with help from Bodo Moeller* 9245 9246 * Initial support for different CRL issuing certificates. This covers a 9247 simple case where the self issued certificates in the chain exist and 9248 the real CRL issuer is higher in the existing chain. 9249 9250 This work was sponsored by Google. 9251 9252 *Steve Henson* 9253 9254 * Removed effectively defunct crypto/store from the build. 9255 9256 *Ben Laurie* 9257 9258 * Revamp of STACK to provide stronger type-checking. Still to come: 9259 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9260 ASN1_STRING, CONF_VALUE. 9261 9262 *Ben Laurie* 9263 9264 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9265 RAM on SSL connections. This option can save about 34k per idle SSL. 9266 9267 *Nick Mathewson* 9268 9269 * Revamp of LHASH to provide stronger type-checking. Still to come: 9270 STACK, TXT_DB, bsearch, qsort. 9271 9272 *Ben Laurie* 9273 9274 * Initial support for Cryptographic Message Syntax (aka CMS) based 9275 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9276 support for data, signedData, compressedData, digestedData and 9277 encryptedData, envelopedData types included. Scripts to check against 9278 RFC4134 examples draft and interop and consistency checks of many 9279 content types and variants. 9280 9281 *Steve Henson* 9282 9283 * Add options to enc utility to support use of zlib compression BIO. 9284 9285 *Steve Henson* 9286 9287 * Extend mk1mf to support importing of options and assembly language 9288 files from Configure script, currently only included in VC-WIN32. 9289 The assembly language rules can now optionally generate the source 9290 files from the associated perl scripts. 9291 9292 *Steve Henson* 9293 9294 * Implement remaining functionality needed to support GOST ciphersuites. 9295 Interop testing has been performed using CryptoPro implementations. 9296 9297 *Victor B. Wagner <vitus@cryptocom.ru>* 9298 9299 * s390x assembler pack. 9300 9301 *Andy Polyakov* 9302 9303 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9304 "family." 9305 9306 *Andy Polyakov* 9307 9308 * Implement Opaque PRF Input TLS extension as specified in 9309 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9310 official specification yet and no extension type assignment by 9311 IANA exists, this extension (for now) will have to be explicitly 9312 enabled when building OpenSSL by providing the extension number 9313 to use. For example, specify an option 9314 9315 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9316 9317 to the "config" or "Configure" script to enable the extension, 9318 assuming extension number 0x9527 (which is a completely arbitrary 9319 and unofficial assignment based on the MD5 hash of the Internet 9320 Draft). Note that by doing so, you potentially lose 9321 interoperability with other TLS implementations since these might 9322 be using the same extension number for other purposes. 9323 9324 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9325 opaque PRF input value to use in the handshake. This will create 9326 an internal copy of the length-'len' string at 'src', and will 9327 return non-zero for success. 9328 9329 To get more control and flexibility, provide a callback function 9330 by using 9331 9332 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9333 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9334 9335 where 9336 9337 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9338 void *arg; 9339 9340 Callback function 'cb' will be called in handshakes, and is 9341 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9342 Argument 'arg' is for application purposes (the value as given to 9343 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9344 be provided to the callback function). The callback function 9345 has to return non-zero to report success: usually 1 to use opaque 9346 PRF input just if possible, or 2 to enforce use of the opaque PRF 9347 input. In the latter case, the library will abort the handshake 9348 if opaque PRF input is not successfully negotiated. 9349 9350 Arguments 'peerinput' and 'len' given to the callback function 9351 will always be NULL and 0 in the case of a client. A server will 9352 see the client's opaque PRF input through these variables if 9353 available (NULL and 0 otherwise). Note that if the server 9354 provides an opaque PRF input, the length must be the same as the 9355 length of the client's opaque PRF input. 9356 9357 Note that the callback function will only be called when creating 9358 a new session (session resumption can resume whatever was 9359 previously negotiated), and will not be called in SSL 2.0 9360 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9361 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9362 for applications that need to enforce opaque PRF input. 9363 9364 *Bodo Moeller* 9365 9366 * Update ssl code to support digests other than SHA1+MD5 for handshake 9367 MAC. 9368 9369 *Victor B. Wagner <vitus@cryptocom.ru>* 9370 9371 * Add RFC4507 support to OpenSSL. This includes the corrections in 9372 RFC4507bis. The encrypted ticket format is an encrypted encoded 9373 SSL_SESSION structure, that way new session features are automatically 9374 supported. 9375 9376 If a client application caches session in an SSL_SESSION structure 9377 support is transparent because tickets are now stored in the encoded 9378 SSL_SESSION. 9379 9380 The SSL_CTX structure automatically generates keys for ticket 9381 protection in servers so again support should be possible 9382 with no application modification. 9383 9384 If a client or server wishes to disable RFC4507 support then the option 9385 SSL_OP_NO_TICKET can be set. 9386 9387 Add a TLS extension debugging callback to allow the contents of any client 9388 or server extensions to be examined. 9389 9390 This work was sponsored by Google. 9391 9392 *Steve Henson* 9393 9394 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9395 OpenSSL should now compile cleanly on gcc 4.2 9396 9397 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9398 9399 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9400 support including streaming MAC support: this is required for GOST 9401 ciphersuite support. 9402 9403 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9404 9405 * Add option -stream to use PKCS#7 streaming in smime utility. New 9406 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9407 to output in BER and PEM format. 9408 9409 *Steve Henson* 9410 9411 * Experimental support for use of HMAC via EVP_PKEY interface. This 9412 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9413 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9414 ENGINE support for HMAC keys which are unextractable. New -mac and 9415 -macopt options to dgst utility. 9416 9417 *Steve Henson* 9418 9419 * New option -sigopt to dgst utility. Update dgst to use 9420 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9421 alternative signing parameters such as X9.31 or PSS in the dgst 9422 utility. 9423 9424 *Steve Henson* 9425 9426 * Change ssl_cipher_apply_rule(), the internal function that does 9427 the work each time a ciphersuite string requests enabling 9428 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9429 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9430 the order of disabled ciphersuites such that those ciphersuites 9431 that most recently went from enabled to disabled not only stay 9432 in order with respect to each other, but also have higher priority 9433 than other disabled ciphersuites the next time ciphersuites are 9434 enabled again. 9435 9436 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9437 the same ciphersuites as with "HIGH" alone, but in a specific 9438 order where the PSK ciphersuites come first (since they are the 9439 most recently disabled ciphersuites when "HIGH" is parsed). 9440 9441 Also, change ssl_create_cipher_list() (using this new 9442 functionality) such that between otherwise identical 9443 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9444 the default order. 9445 9446 *Bodo Moeller* 9447 9448 * Change ssl_create_cipher_list() so that it automatically 9449 arranges the ciphersuites in reasonable order before starting 9450 to process the rule string. Thus, the definition for "DEFAULT" 9451 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9452 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9453 This makes it much easier to arrive at a reasonable default order 9454 in applications for which anonymous ciphers are OK (meaning 9455 that you can't actually use DEFAULT). 9456 9457 *Bodo Moeller; suggested by Victor Duchovni* 9458 9459 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9460 processing) into multiple integers instead of setting 9461 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9462 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9463 (These masks as well as the individual bit definitions are hidden 9464 away into the non-exported interface ssl/ssl_locl.h, so this 9465 change to the definition of the SSL_CIPHER structure shouldn't 9466 affect applications.) This give us more bits for each of these 9467 categories, so there is no longer a need to coagulate AES128 and 9468 AES256 into a single algorithm bit, and to coagulate Camellia128 9469 and Camellia256 into a single algorithm bit, which has led to all 9470 kinds of kludges. 9471 9472 Thus, among other things, the kludge introduced in 0.9.7m and 9473 0.9.8e for masking out AES256 independently of AES128 or masking 9474 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9475 9476 With the change, we also introduce new ciphersuite aliases that 9477 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9478 "CAMELLIA256". 9479 9480 *Bodo Moeller* 9481 9482 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9483 Use the leftmost N bytes of the signature input if the input is 9484 larger than the prime q (with N being the size in bytes of q). 9485 9486 *Nils Larsch* 9487 9488 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9489 it yet and it is largely untested. 9490 9491 *Steve Henson* 9492 9493 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9494 9495 *Nils Larsch* 9496 9497 * Initial incomplete changes to avoid need for function casts in OpenSSL 9498 some compilers (gcc 4.2 and later) reject their use. Safestack is 9499 reimplemented. Update ASN1 to avoid use of legacy functions. 9500 9501 *Steve Henson* 9502 9503 * Win32/64 targets are linked with Winsock2. 9504 9505 *Andy Polyakov* 9506 9507 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9508 to external functions. This can be used to increase CRL handling 9509 efficiency especially when CRLs are very large by (for example) storing 9510 the CRL revoked certificates in a database. 9511 9512 *Steve Henson* 9513 9514 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9515 new CRLs added to a directory can be used. New command line option 9516 -verify_return_error to s_client and s_server. This causes real errors 9517 to be returned by the verify callback instead of carrying on no matter 9518 what. This reflects the way a "real world" verify callback would behave. 9519 9520 *Steve Henson* 9521 9522 * GOST engine, supporting several GOST algorithms and public key formats. 9523 Kindly donated by Cryptocom. 9524 9525 *Cryptocom* 9526 9527 * Partial support for Issuing Distribution Point CRL extension. CRLs 9528 partitioned by DP are handled but no indirect CRL or reason partitioning 9529 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9530 selected via a scoring technique which handles IDP and AKID in CRLs. 9531 9532 *Steve Henson* 9533 9534 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9535 will ultimately be used for all verify operations: this will remove the 9536 X509_STORE dependency on certificate verification and allow alternative 9537 lookup methods. X509_STORE based implementations of these two callbacks. 9538 9539 *Steve Henson* 9540 9541 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9542 Modify get_crl() to find a valid (unexpired) CRL if possible. 9543 9544 *Steve Henson* 9545 9546 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9547 this would be called X509_CRL_cmp() but that name is already used by 9548 a function that just compares CRL issuer names. Cache several CRL 9549 extensions in X509_CRL structure and cache CRLDP in X509. 9550 9551 *Steve Henson* 9552 9553 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9554 this maps equivalent X509_NAME structures into a consistent structure. 9555 Name comparison can then be performed rapidly using memcmp(). 9556 9557 *Steve Henson* 9558 9559 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9560 utility. 9561 9562 *Steve Henson* 9563 9564 * Allow digests to supply their own micalg string for S/MIME type using 9565 the ctrl EVP_MD_CTRL_MICALG. 9566 9567 *Steve Henson* 9568 9569 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9570 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9571 ctrl. It can then customise the structure before and/or after signing 9572 if necessary. 9573 9574 *Steve Henson* 9575 9576 * New function OBJ_add_sigid() to allow application defined signature OIDs 9577 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9578 to free up any added signature OIDs. 9579 9580 *Steve Henson* 9581 9582 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9583 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9584 digest and cipher tables. New options added to openssl utility: 9585 list-message-digest-algorithms and list-cipher-algorithms. 9586 9587 *Steve Henson* 9588 9589 * Change the array representation of binary polynomials: the list 9590 of degrees of non-zero coefficients is now terminated with -1. 9591 Previously it was terminated with 0, which was also part of the 9592 value; thus, the array representation was not applicable to 9593 polynomials where t^0 has coefficient zero. This change makes 9594 the array representation useful in a more general context. 9595 9596 *Douglas Stebila* 9597 9598 * Various modifications and fixes to SSL/TLS cipher string 9599 handling. For ECC, the code now distinguishes between fixed ECDH 9600 with RSA certificates on the one hand and with ECDSA certificates 9601 on the other hand, since these are separate ciphersuites. The 9602 unused code for Fortezza ciphersuites has been removed. 9603 9604 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9605 (not "ECDHE"). For consistency with the code for DH 9606 certificates, use of ECDH certificates is now considered ECDH 9607 authentication, not RSA or ECDSA authentication (the latter is 9608 merely the CA's signing algorithm and not actively used in the 9609 protocol). 9610 9611 The temporary ciphersuite alias "ECCdraft" is no longer 9612 available, and ECC ciphersuites are no longer excluded from "ALL" 9613 and "DEFAULT". The following aliases now exist for RFC 4492 9614 ciphersuites, most of these by analogy with the DH case: 9615 9616 kECDHr - ECDH cert, signed with RSA 9617 kECDHe - ECDH cert, signed with ECDSA 9618 kECDH - ECDH cert (signed with either RSA or ECDSA) 9619 kEECDH - ephemeral ECDH 9620 ECDH - ECDH cert or ephemeral ECDH 9621 9622 aECDH - ECDH cert 9623 aECDSA - ECDSA cert 9624 ECDSA - ECDSA cert 9625 9626 AECDH - anonymous ECDH 9627 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9628 9629 *Bodo Moeller* 9630 9631 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9632 Use correct micalg parameters depending on digest(s) in signed message. 9633 9634 *Steve Henson* 9635 9636 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9637 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9638 9639 *Steve Henson* 9640 9641 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9642 an engine to register a method. Add ENGINE lookups for methods and 9643 functional reference processing. 9644 9645 *Steve Henson* 9646 9647 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9648 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9649 process. 9650 9651 *Steve Henson* 9652 9653 * New -resign option to smime utility. This adds one or more signers 9654 to an existing PKCS#7 signedData structure. Also -md option to use an 9655 alternative message digest algorithm for signing. 9656 9657 *Steve Henson* 9658 9659 * Tidy up PKCS#7 routines and add new functions to make it easier to 9660 create PKCS7 structures containing multiple signers. Update smime 9661 application to support multiple signers. 9662 9663 *Steve Henson* 9664 9665 * New -macalg option to pkcs12 utility to allow setting of an alternative 9666 digest MAC. 9667 9668 *Steve Henson* 9669 9670 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9671 Reorganize PBE internals to lookup from a static table using NIDs, 9672 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9673 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9674 PRF which will be automatically used with PBES2. 9675 9676 *Steve Henson* 9677 9678 * Replace the algorithm specific calls to generate keys in "req" with the 9679 new API. 9680 9681 *Steve Henson* 9682 9683 * Update PKCS#7 enveloped data routines to use new API. This is now 9684 supported by any public key method supporting the encrypt operation. A 9685 ctrl is added to allow the public key algorithm to examine or modify 9686 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9687 a no op. 9688 9689 *Steve Henson* 9690 9691 * Add a ctrl to asn1 method to allow a public key algorithm to express 9692 a default digest type to use. In most cases this will be SHA1 but some 9693 algorithms (such as GOST) need to specify an alternative digest. The 9694 return value indicates how strong the preference is 1 means optional and 9695 2 is mandatory (that is it is the only supported type). Modify 9696 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9697 use the default md. Update openssl utilities to use the default digest 9698 type for signing if it is not explicitly indicated. 9699 9700 *Steve Henson* 9701 9702 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9703 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9704 signing method from the key type. This effectively removes the link 9705 between digests and public key types. 9706 9707 *Steve Henson* 9708 9709 * Add an OID cross reference table and utility functions. Its purpose is to 9710 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9711 rsaEncryption. This will allow some of the algorithm specific hackery 9712 needed to use the correct OID to be removed. 9713 9714 *Steve Henson* 9715 9716 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9717 structures for PKCS7_sign(). They are now set up by the relevant public 9718 key ASN1 method. 9719 9720 *Steve Henson* 9721 9722 * Add provisional EC pkey method with support for ECDSA and ECDH. 9723 9724 *Steve Henson* 9725 9726 * Add support for key derivation (agreement) in the API, DH method and 9727 pkeyutl. 9728 9729 *Steve Henson* 9730 9731 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9732 public and private key formats. As a side effect these add additional 9733 command line functionality not previously available: DSA signatures can be 9734 generated and verified using pkeyutl and DH key support and generation in 9735 pkey, genpkey. 9736 9737 *Steve Henson* 9738 9739 * BeOS support. 9740 9741 *Oliver Tappe <zooey@hirschkaefer.de>* 9742 9743 * New make target "install_html_docs" installs HTML renditions of the 9744 manual pages. 9745 9746 *Oliver Tappe <zooey@hirschkaefer.de>* 9747 9748 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9749 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9750 support key and parameter generation and add initial key generation 9751 functionality for RSA. 9752 9753 *Steve Henson* 9754 9755 * Add functions for main EVP_PKEY_method operations. The undocumented 9756 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9757 `EVP_PKEY_{encrypt,decrypt}_old`. 9758 9759 *Steve Henson* 9760 9761 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9762 key API, doesn't do much yet. 9763 9764 *Steve Henson* 9765 9766 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9767 public key algorithms. New option to openssl utility: 9768 "list-public-key-algorithms" to print out info. 9769 9770 *Steve Henson* 9771 9772 * Implement the Supported Elliptic Curves Extension for 9773 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9774 9775 *Douglas Stebila* 9776 9777 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9778 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 9779 9780 *Steve Henson* 9781 9782 * New utilities pkey and pkeyparam. These are similar to algorithm specific 9783 utilities such as rsa, dsa, dsaparam etc except they process any key 9784 type. 9785 9786 *Steve Henson* 9787 9788 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 9789 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 9790 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 9791 structure. 9792 9793 *Steve Henson* 9794 9795 * Initial support for pluggable public key ASN1. 9796 De-spaghettify the public key ASN1 handling. Move public and private 9797 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 9798 algorithm specific handling to a single module within the relevant 9799 algorithm directory. Add functions to allow (near) opaque processing 9800 of public and private key structures. 9801 9802 *Steve Henson* 9803 9804 * Implement the Supported Point Formats Extension for 9805 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9806 9807 *Douglas Stebila* 9808 9809 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 9810 for the psk identity [hint] and the psk callback functions to the 9811 SSL_SESSION, SSL and SSL_CTX structure. 9812 9813 New ciphersuites: 9814 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 9815 PSK-AES256-CBC-SHA 9816 9817 New functions: 9818 SSL_CTX_use_psk_identity_hint 9819 SSL_get_psk_identity_hint 9820 SSL_get_psk_identity 9821 SSL_use_psk_identity_hint 9822 9823 *Mika Kousa and Pasi Eronen of Nokia Corporation* 9824 9825 * Add RFC 3161 compliant time stamp request creation, response generation 9826 and response verification functionality. 9827 9828 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 9829 9830 * Add initial support for TLS extensions, specifically for the server_name 9831 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 9832 have new members for a host name. The SSL data structure has an 9833 additional member `SSL_CTX *initial_ctx` so that new sessions can be 9834 stored in that context to allow for session resumption, even after the 9835 SSL has been switched to a new SSL_CTX in reaction to a client's 9836 server_name extension. 9837 9838 New functions (subject to change): 9839 9840 SSL_get_servername() 9841 SSL_get_servername_type() 9842 SSL_set_SSL_CTX() 9843 9844 New CTRL codes and macros (subject to change): 9845 9846 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 9847 - SSL_CTX_set_tlsext_servername_callback() 9848 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 9849 - SSL_CTX_set_tlsext_servername_arg() 9850 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 9851 9852 openssl s_client has a new '-servername ...' option. 9853 9854 openssl s_server has new options '-servername_host ...', '-cert2 ...', 9855 '-key2 ...', '-servername_fatal' (subject to change). This allows 9856 testing the HostName extension for a specific single host name ('-cert' 9857 and '-key' remain fallbacks for handshakes without HostName 9858 negotiation). If the unrecognized_name alert has to be sent, this by 9859 default is a warning; it becomes fatal with the '-servername_fatal' 9860 option. 9861 9862 *Peter Sylvester, Remy Allais, Christophe Renou* 9863 9864 * Whirlpool hash implementation is added. 9865 9866 *Andy Polyakov* 9867 9868 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 9869 bn(64,32). Because of instruction set limitations it doesn't have 9870 any negative impact on performance. This was done mostly in order 9871 to make it possible to share assembler modules, such as bn_mul_mont 9872 implementations, between 32- and 64-bit builds without hassle. 9873 9874 *Andy Polyakov* 9875 9876 * Move code previously exiled into file crypto/ec/ec2_smpt.c 9877 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 9878 macro. 9879 9880 *Bodo Moeller* 9881 9882 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 9883 dedicated Montgomery multiplication procedure, is introduced. 9884 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 9885 "64-bit" performance on certain 32-bit targets. 9886 9887 *Andy Polyakov* 9888 9889 * New option SSL_OP_NO_COMP to disable use of compression selectively 9890 in SSL structures. New SSL ctrl to set maximum send fragment size. 9891 Save memory by setting the I/O buffer sizes dynamically instead of 9892 using the maximum available value. 9893 9894 *Steve Henson* 9895 9896 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 9897 in addition to the text details. 9898 9899 *Bodo Moeller* 9900 9901 * Very, very preliminary EXPERIMENTAL support for printing of general 9902 ASN1 structures. This currently produces rather ugly output and doesn't 9903 handle several customised structures at all. 9904 9905 *Steve Henson* 9906 9907 * Integrated support for PVK file format and some related formats such 9908 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 9909 these in the 'rsa' and 'dsa' utilities. 9910 9911 *Steve Henson* 9912 9913 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 9914 9915 *Steve Henson* 9916 9917 * Remove the ancient ASN1_METHOD code. This was only ever used in one 9918 place for the (very old) "NETSCAPE" format certificates which are now 9919 handled using new ASN1 code equivalents. 9920 9921 *Steve Henson* 9922 9923 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 9924 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 9925 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 9926 9927 *Nils Larsch* 9928 9929 * Modify CRL distribution points extension code to print out previously 9930 unsupported fields. Enhance extension setting code to allow setting of 9931 all fields. 9932 9933 *Steve Henson* 9934 9935 * Add print and set support for Issuing Distribution Point CRL extension. 9936 9937 *Steve Henson* 9938 9939 * Change 'Configure' script to enable Camellia by default. 9940 9941 *NTT* 9942 9943OpenSSL 0.9.x 9944------------- 9945 9946### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 9947 9948 * When rejecting SSL/TLS records due to an incorrect version number, never 9949 update s->server with a new major version number. As of 9950 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 9951 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 9952 the previous behavior could result in a read attempt at NULL when 9953 receiving specific incorrect SSL/TLS records once record payload 9954 protection is active. ([CVE-2010-0740]) 9955 9956 *Bodo Moeller, Adam Langley <agl@chromium.org>* 9957 9958 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 9959 could be crashed if the relevant tables were not present (e.g. chrooted). 9960 9961 *Tomas Hoger <thoger@redhat.com>* 9962 9963### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 9964 9965 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 9966 9967 *Martin Olsson, Neel Mehta* 9968 9969 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 9970 accommodate for stack sorting, always a write lock!). 9971 9972 *Bodo Moeller* 9973 9974 * On some versions of WIN32 Heap32Next is very slow. This can cause 9975 excessive delays in the RAND_poll(): over a minute. As a workaround 9976 include a time check in the inner Heap32Next loop too. 9977 9978 *Steve Henson* 9979 9980 * The code that handled flushing of data in SSL/TLS originally used the 9981 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 9982 the problem outlined in PR#1949. The fix suggested there however can 9983 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 9984 of Apache). So instead simplify the code to flush unconditionally. 9985 This should be fine since flushing with no data to flush is a no op. 9986 9987 *Steve Henson* 9988 9989 * Handle TLS versions 2.0 and later properly and correctly use the 9990 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 9991 off ancient servers have a habit of sticking around for a while... 9992 9993 *Steve Henson* 9994 9995 * Modify compression code so it frees up structures without using the 9996 ex_data callbacks. This works around a problem where some applications 9997 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 9998 restarting) then use compression (e.g. SSL with compression) later. 9999 This results in significant per-connection memory leaks and 10000 has caused some security issues including CVE-2008-1678 and 10001 CVE-2009-4355. 10002 10003 *Steve Henson* 10004 10005 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 10006 change when encrypting or decrypting. 10007 10008 *Bodo Moeller* 10009 10010 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 10011 connect and renegotiate with servers which do not support RI. 10012 Until RI is more widely deployed this option is enabled by default. 10013 10014 *Steve Henson* 10015 10016 * Add "missing" ssl ctrls to clear options and mode. 10017 10018 *Steve Henson* 10019 10020 * If client attempts to renegotiate and doesn't support RI respond with 10021 a no_renegotiation alert as required by RFC5746. Some renegotiating 10022 TLS clients will continue a connection gracefully when they receive 10023 the alert. Unfortunately OpenSSL mishandled this alert and would hang 10024 waiting for a server hello which it will never receive. Now we treat a 10025 received no_renegotiation alert as a fatal error. This is because 10026 applications requesting a renegotiation might well expect it to succeed 10027 and would have no code in place to handle the server denying it so the 10028 only safe thing to do is to terminate the connection. 10029 10030 *Steve Henson* 10031 10032 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 10033 peer supports secure renegotiation and 0 otherwise. Print out peer 10034 renegotiation support in s_client/s_server. 10035 10036 *Steve Henson* 10037 10038 * Replace the highly broken and deprecated SPKAC certification method with 10039 the updated NID creation version. This should correctly handle UTF8. 10040 10041 *Steve Henson* 10042 10043 * Implement RFC5746. Re-enable renegotiation but require the extension 10044 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 10045 turns out to be a bad idea. It has been replaced by 10046 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 10047 SSL_CTX_set_options(). This is really not recommended unless you 10048 know what you are doing. 10049 10050 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 10051 10052 * Fixes to stateless session resumption handling. Use initial_ctx when 10053 issuing and attempting to decrypt tickets in case it has changed during 10054 servername handling. Use a non-zero length session ID when attempting 10055 stateless session resumption: this makes it possible to determine if 10056 a resumption has occurred immediately after receiving server hello 10057 (several places in OpenSSL subtly assume this) instead of later in 10058 the handshake. 10059 10060 *Steve Henson* 10061 10062 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 10063 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 10064 fixes for a few places where the return code is not checked 10065 correctly. 10066 10067 *Julia Lawall <julia@diku.dk>* 10068 10069 * Add --strict-warnings option to Configure script to include devteam 10070 warnings in other configurations. 10071 10072 *Steve Henson* 10073 10074 * Add support for --libdir option and LIBDIR variable in makefiles. This 10075 makes it possible to install openssl libraries in locations which 10076 have names other than "lib", for example "/usr/lib64" which some 10077 systems need. 10078 10079 *Steve Henson, based on patch from Jeremy Utley* 10080 10081 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 10082 X690 8.9.12 and can produce some misleading textual output of OIDs. 10083 10084 *Steve Henson, reported by Dan Kaminsky* 10085 10086 * Delete MD2 from algorithm tables. This follows the recommendation in 10087 several standards that it is not used in new applications due to 10088 several cryptographic weaknesses. For binary compatibility reasons 10089 the MD2 API is still compiled in by default. 10090 10091 *Steve Henson* 10092 10093 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 10094 and restored. 10095 10096 *Steve Henson* 10097 10098 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 10099 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 10100 clash. 10101 10102 *Guenter <lists@gknw.net>* 10103 10104 * Fix the server certificate chain building code to use X509_verify_cert(), 10105 it used to have an ad-hoc builder which was unable to cope with anything 10106 other than a simple chain. 10107 10108 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 10109 10110 * Don't check self signed certificate signatures in X509_verify_cert() 10111 by default (a flag can override this): it just wastes time without 10112 adding any security. As a useful side effect self signed root CAs 10113 with non-FIPS digests are now usable in FIPS mode. 10114 10115 *Steve Henson* 10116 10117 * In dtls1_process_out_of_seq_message() the check if the current message 10118 is already buffered was missing. For every new message was memory 10119 allocated, allowing an attacker to perform an denial of service attack 10120 with sending out of seq handshake messages until there is no memory 10121 left. Additionally every future message was buffered, even if the 10122 sequence number made no sense and would be part of another handshake. 10123 So only messages with sequence numbers less than 10 in advance will be 10124 buffered. ([CVE-2009-1378]) 10125 10126 *Robin Seggelmann, discovered by Daniel Mentz* 10127 10128 * Records are buffered if they arrive with a future epoch to be 10129 processed after finishing the corresponding handshake. There is 10130 currently no limitation to this buffer allowing an attacker to perform 10131 a DOS attack with sending records with future epochs until there is no 10132 memory left. This patch adds the pqueue_size() function to determine 10133 the size of a buffer and limits the record buffer to 100 entries. 10134 ([CVE-2009-1377]) 10135 10136 *Robin Seggelmann, discovered by Daniel Mentz* 10137 10138 * Keep a copy of frag->msg_header.frag_len so it can be used after the 10139 parent structure is freed. ([CVE-2009-1379]) 10140 10141 *Daniel Mentz* 10142 10143 * Handle non-blocking I/O properly in SSL_shutdown() call. 10144 10145 *Darryl Miles <darryl-mailinglists@netbauds.net>* 10146 10147 * Add `2.5.4.*` OIDs 10148 10149 *Ilya O. <vrghost@gmail.com>* 10150 10151### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 10152 10153 * Disable renegotiation completely - this fixes a severe security 10154 problem ([CVE-2009-3555]) at the cost of breaking all 10155 renegotiation. Renegotiation can be re-enabled by setting 10156 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10157 run-time. This is really not recommended unless you know what 10158 you're doing. 10159 10160 *Ben Laurie* 10161 10162### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10163 10164 * Don't set val to NULL when freeing up structures, it is freed up by 10165 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10166 zeroing past the valid field. ([CVE-2009-0789]) 10167 10168 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10169 10170 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10171 checked correctly. This would allow some invalid signed attributes to 10172 appear to verify correctly. ([CVE-2009-0591]) 10173 10174 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10175 10176 * Reject UniversalString and BMPString types with invalid lengths. This 10177 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10178 a legal length. ([CVE-2009-0590]) 10179 10180 *Steve Henson* 10181 10182 * Set S/MIME signing as the default purpose rather than setting it 10183 unconditionally. This allows applications to override it at the store 10184 level. 10185 10186 *Steve Henson* 10187 10188 * Permit restricted recursion of ASN1 strings. This is needed in practice 10189 to handle some structures. 10190 10191 *Steve Henson* 10192 10193 * Improve efficiency of mem_gets: don't search whole buffer each time 10194 for a '\n' 10195 10196 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10197 10198 * New -hex option for openssl rand. 10199 10200 *Matthieu Herrb* 10201 10202 * Print out UTF8String and NumericString when parsing ASN1. 10203 10204 *Steve Henson* 10205 10206 * Support NumericString type for name components. 10207 10208 *Steve Henson* 10209 10210 * Allow CC in the environment to override the automatically chosen 10211 compiler. Note that nothing is done to ensure flags work with the 10212 chosen compiler. 10213 10214 *Ben Laurie* 10215 10216### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10217 10218 * Properly check EVP_VerifyFinal() and similar return values 10219 ([CVE-2008-5077]). 10220 10221 *Ben Laurie, Bodo Moeller, Google Security Team* 10222 10223 * Enable TLS extensions by default. 10224 10225 *Ben Laurie* 10226 10227 * Allow the CHIL engine to be loaded, whether the application is 10228 multithreaded or not. (This does not release the developer from the 10229 obligation to set up the dynamic locking callbacks.) 10230 10231 *Sander Temme <sander@temme.net>* 10232 10233 * Use correct exit code if there is an error in dgst command. 10234 10235 *Steve Henson; problem pointed out by Roland Dirlewanger* 10236 10237 * Tweak Configure so that you need to say "experimental-jpake" to enable 10238 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10239 10240 *Bodo Moeller* 10241 10242 * Add experimental JPAKE support, including demo authentication in 10243 s_client and s_server. 10244 10245 *Ben Laurie* 10246 10247 * Set the comparison function in v3_addr_canonize(). 10248 10249 *Rob Austein <sra@hactrn.net>* 10250 10251 * Add support for XMPP STARTTLS in s_client. 10252 10253 *Philip Paeps <philip@freebsd.org>* 10254 10255 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10256 to ensure that even with this option, only ciphersuites in the 10257 server's preference list will be accepted. (Note that the option 10258 applies only when resuming a session, so the earlier behavior was 10259 just about the algorithm choice for symmetric cryptography.) 10260 10261 *Bodo Moeller* 10262 10263### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10264 10265 * Fix NULL pointer dereference if a DTLS server received 10266 ChangeCipherSpec as first record ([CVE-2009-1386]). 10267 10268 *PR #1679* 10269 10270 * Fix a state transition in s3_srvr.c and d1_srvr.c 10271 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10272 10273 *Nagendra Modadugu* 10274 10275 * The fix in 0.9.8c that supposedly got rid of unsafe 10276 double-checked locking was incomplete for RSA blinding, 10277 addressing just one layer of what turns out to have been 10278 doubly unsafe triple-checked locking. 10279 10280 So now fix this for real by retiring the MONT_HELPER macro 10281 in crypto/rsa/rsa_eay.c. 10282 10283 *Bodo Moeller; problem pointed out by Marius Schilder* 10284 10285 * Various precautionary measures: 10286 10287 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10288 10289 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10290 (NB: This would require knowledge of the secret session ticket key 10291 to exploit, in which case you'd be SOL either way.) 10292 10293 - Change bn_nist.c so that it will properly handle input BIGNUMs 10294 outside the expected range. 10295 10296 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10297 builds. 10298 10299 *Neel Mehta, Bodo Moeller* 10300 10301 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10302 the load fails. Useful for distros. 10303 10304 *Ben Laurie and the FreeBSD team* 10305 10306 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10307 10308 *Steve Henson* 10309 10310 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10311 10312 *Huang Ying* 10313 10314 * Expand ENGINE to support engine supplied SSL client certificate functions. 10315 10316 This work was sponsored by Logica. 10317 10318 *Steve Henson* 10319 10320 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10321 keystores. Support for SSL/TLS client authentication too. 10322 Not compiled unless enable-capieng specified to Configure. 10323 10324 This work was sponsored by Logica. 10325 10326 *Steve Henson* 10327 10328 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10329 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10330 attribute creation routines such as certificate requests and PKCS#12 10331 files. 10332 10333 *Steve Henson* 10334 10335### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10336 10337 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10338 handshake which could lead to a client crash as found using the 10339 Codenomicon TLS test suite ([CVE-2008-1672]) 10340 10341 *Steve Henson, Mark Cox* 10342 10343 * Fix double free in TLS server name extensions which could lead to 10344 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10345 10346 *Joe Orton* 10347 10348 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10349 10350 Clear the error queue to ensure that error entries left from 10351 older function calls do not interfere with the correct operation. 10352 10353 *Lutz Jaenicke, Erik de Castro Lopo* 10354 10355 * Remove root CA certificates of commercial CAs: 10356 10357 The OpenSSL project does not recommend any specific CA and does not 10358 have any policy with respect to including or excluding any CA. 10359 Therefore it does not make any sense to ship an arbitrary selection 10360 of root CA certificates with the OpenSSL software. 10361 10362 *Lutz Jaenicke* 10363 10364 * RSA OAEP patches to fix two separate invalid memory reads. 10365 The first one involves inputs when 'lzero' is greater than 10366 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10367 before the beginning of from). The second one involves inputs where 10368 the 'db' section contains nothing but zeroes (there is a one-byte 10369 invalid read after the end of 'db'). 10370 10371 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10372 10373 * Partial backport from 0.9.9-dev: 10374 10375 Introduce bn_mul_mont (dedicated Montgomery multiplication 10376 procedure) as a candidate for BIGNUM assembler implementation. 10377 While 0.9.9-dev uses assembler for various architectures, only 10378 x86_64 is available by default here in the 0.9.8 branch, and 10379 32-bit x86 is available through a compile-time setting. 10380 10381 To try the 32-bit x86 assembler implementation, use Configure 10382 option "enable-montasm" (which exists only for this backport). 10383 10384 As "enable-montasm" for 32-bit x86 disclaims code stability 10385 anyway, in this constellation we activate additional code 10386 backported from 0.9.9-dev for further performance improvements, 10387 namely BN_from_montgomery_word. (To enable this otherwise, 10388 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10389 10390 *Andy Polyakov (backport partially by Bodo Moeller)* 10391 10392 * Add TLS session ticket callback. This allows an application to set 10393 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10394 values. This is useful for key rollover for example where several key 10395 sets may exist with different names. 10396 10397 *Steve Henson* 10398 10399 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10400 This was broken until now in 0.9.8 releases, such that the only way 10401 a registered ENGINE could be used (assuming it initialises 10402 successfully on the host) was to explicitly set it as the default 10403 for the relevant algorithms. This is in contradiction with 0.9.7 10404 behaviour and the documentation. With this fix, when an ENGINE is 10405 registered into a given algorithm's table of implementations, the 10406 'uptodate' flag is reset so that auto-discovery will be used next 10407 time a new context for that algorithm attempts to select an 10408 implementation. 10409 10410 *Ian Lister (tweaked by Geoff Thorpe)* 10411 10412 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10413 implementation in the following ways: 10414 10415 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10416 hard coded. 10417 10418 Lack of BER streaming support means one pass streaming processing is 10419 only supported if data is detached: setting the streaming flag is 10420 ignored for embedded content. 10421 10422 CMS support is disabled by default and must be explicitly enabled 10423 with the enable-cms configuration option. 10424 10425 *Steve Henson* 10426 10427 * Update the GMP engine glue to do direct copies between BIGNUM and 10428 mpz_t when openssl and GMP use the same limb size. Otherwise the 10429 existing "conversion via a text string export" trick is still used. 10430 10431 *Paul Sheer <paulsheer@gmail.com>* 10432 10433 * Zlib compression BIO. This is a filter BIO which compressed and 10434 uncompresses any data passed through it. 10435 10436 *Steve Henson* 10437 10438 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10439 RFC3394 compatible AES key wrapping. 10440 10441 *Steve Henson* 10442 10443 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10444 sets string data without copying. X509_ALGOR_set0() and 10445 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10446 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10447 from an X509_ATTRIBUTE structure optionally checking it occurs only 10448 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10449 data. 10450 10451 *Steve Henson* 10452 10453 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10454 to get the expected BN_FLG_CONSTTIME behavior. 10455 10456 *Bodo Moeller (Google)* 10457 10458 * Netware support: 10459 10460 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10461 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10462 - added some more tests to do_tests.pl 10463 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10464 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10465 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10466 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10467 - various changes to netware.pl to enable gcc-cross builds on Win32 10468 platform 10469 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10470 - various changes to fix missing prototype warnings 10471 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10472 - added AES, WHIRLPOOL and CPUID assembler code to build files 10473 - added missing AES assembler make rules to mk1mf.pl 10474 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10475 10476 *Guenter Knauf <eflash@gmx.net>* 10477 10478 * Implement certificate status request TLS extension defined in RFC3546. 10479 A client can set the appropriate parameters and receive the encoded 10480 OCSP response via a callback. A server can query the supplied parameters 10481 and set the encoded OCSP response in the callback. Add simplified examples 10482 to s_client and s_server. 10483 10484 *Steve Henson* 10485 10486### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10487 10488 * Fix various bugs: 10489 + Binary incompatibility of ssl_ctx_st structure 10490 + DTLS interoperation with non-compliant servers 10491 + Don't call get_session_cb() without proposed session 10492 + Fix ia64 assembler code 10493 10494 *Andy Polyakov, Steve Henson* 10495 10496### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10497 10498 * DTLS Handshake overhaul. There were longstanding issues with 10499 OpenSSL DTLS implementation, which were making it impossible for 10500 RFC 4347 compliant client to communicate with OpenSSL server. 10501 Unfortunately just fixing these incompatibilities would "cut off" 10502 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10503 server keeps tolerating non RFC compliant syntax. The opposite is 10504 not true, 0.9.8f client can not communicate with earlier server. 10505 This update even addresses CVE-2007-4995. 10506 10507 *Andy Polyakov* 10508 10509 * Changes to avoid need for function casts in OpenSSL: some compilers 10510 (gcc 4.2 and later) reject their use. 10511 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10512 Steve Henson* 10513 10514 * Add RFC4507 support to OpenSSL. This includes the corrections in 10515 RFC4507bis. The encrypted ticket format is an encrypted encoded 10516 SSL_SESSION structure, that way new session features are automatically 10517 supported. 10518 10519 If a client application caches session in an SSL_SESSION structure 10520 support is transparent because tickets are now stored in the encoded 10521 SSL_SESSION. 10522 10523 The SSL_CTX structure automatically generates keys for ticket 10524 protection in servers so again support should be possible 10525 with no application modification. 10526 10527 If a client or server wishes to disable RFC4507 support then the option 10528 SSL_OP_NO_TICKET can be set. 10529 10530 Add a TLS extension debugging callback to allow the contents of any client 10531 or server extensions to be examined. 10532 10533 This work was sponsored by Google. 10534 10535 *Steve Henson* 10536 10537 * Add initial support for TLS extensions, specifically for the server_name 10538 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10539 have new members for a host name. The SSL data structure has an 10540 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10541 stored in that context to allow for session resumption, even after the 10542 SSL has been switched to a new SSL_CTX in reaction to a client's 10543 server_name extension. 10544 10545 New functions (subject to change): 10546 10547 SSL_get_servername() 10548 SSL_get_servername_type() 10549 SSL_set_SSL_CTX() 10550 10551 New CTRL codes and macros (subject to change): 10552 10553 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10554 - SSL_CTX_set_tlsext_servername_callback() 10555 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10556 - SSL_CTX_set_tlsext_servername_arg() 10557 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10558 10559 openssl s_client has a new '-servername ...' option. 10560 10561 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10562 '-key2 ...', '-servername_fatal' (subject to change). This allows 10563 testing the HostName extension for a specific single host name ('-cert' 10564 and '-key' remain fallbacks for handshakes without HostName 10565 negotiation). If the unrecognized_name alert has to be sent, this by 10566 default is a warning; it becomes fatal with the '-servername_fatal' 10567 option. 10568 10569 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10570 10571 * Add AES and SSE2 assembly language support to VC++ build. 10572 10573 *Steve Henson* 10574 10575 * Mitigate attack on final subtraction in Montgomery reduction. 10576 10577 *Andy Polyakov* 10578 10579 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10580 (which previously caused an internal error). 10581 10582 *Bodo Moeller* 10583 10584 * Squeeze another 10% out of IGE mode when in != out. 10585 10586 *Ben Laurie* 10587 10588 * AES IGE mode speedup. 10589 10590 *Dean Gaudet (Google)* 10591 10592 * Add the Korean symmetric 128-bit cipher SEED (see 10593 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10594 add SEED ciphersuites from RFC 4162: 10595 10596 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10597 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10598 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10599 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10600 10601 To minimize changes between patchlevels in the OpenSSL 0.9.8 10602 series, SEED remains excluded from compilation unless OpenSSL 10603 is configured with 'enable-seed'. 10604 10605 *KISA, Bodo Moeller* 10606 10607 * Mitigate branch prediction attacks, which can be practical if a 10608 single processor is shared, allowing a spy process to extract 10609 information. For detailed background information, see 10610 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10611 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10612 and Necessary Software Countermeasures"). The core of the change 10613 are new versions BN_div_no_branch() and 10614 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10615 respectively, which are slower, but avoid the security-relevant 10616 conditional branches. These are automatically called by BN_div() 10617 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10618 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10619 remove a conditional branch. 10620 10621 BN_FLG_CONSTTIME is the new name for the previous 10622 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10623 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10624 in the exponent causes BN_mod_exp_mont() to use the alternative 10625 implementation in BN_mod_exp_mont_consttime().) The old name 10626 remains as a deprecated alias. 10627 10628 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10629 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10630 constant-time implementations for more than just exponentiation. 10631 Here too the old name is kept as a deprecated alias. 10632 10633 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10634 the BN_BLINDING structure gets an independent copy of the 10635 modulus. This means that the previous `BIGNUM *m` argument to 10636 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10637 essentially becomes `const BIGNUM *m`, although we can't actually 10638 change this in the header file before 0.9.9. It allows 10639 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10640 enable BN_FLG_CONSTTIME. 10641 10642 *Matthew D Wood (Intel Corp)* 10643 10644 * In the SSL/TLS server implementation, be strict about session ID 10645 context matching (which matters if an application uses a single 10646 external cache for different purposes). Previously, 10647 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10648 set. This did ensure strict client verification, but meant that, 10649 with applications using a single external cache for quite 10650 different requirements, clients could circumvent ciphersuite 10651 restrictions for a given session ID context by starting a session 10652 in a different context. 10653 10654 *Bodo Moeller* 10655 10656 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10657 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10658 authentication-only ciphersuites. 10659 10660 *Bodo Moeller* 10661 10662 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10663 not complete and could lead to a possible single byte overflow 10664 ([CVE-2007-5135]) [Ben Laurie] 10665 10666### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10667 10668 * Since AES128 and AES256 (and similarly Camellia128 and 10669 Camellia256) share a single mask bit in the logic of 10670 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10671 kludge to work properly if AES128 is available and AES256 isn't 10672 (or if Camellia128 is available and Camellia256 isn't). 10673 10674 *Victor Duchovni* 10675 10676 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10677 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10678 When a point or a seed is encoded in a BIT STRING, we need to 10679 prevent the removal of trailing zero bits to get the proper DER 10680 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10681 of a NamedBitList, for which trailing 0 bits need to be removed.) 10682 10683 *Bodo Moeller* 10684 10685 * Have SSL/TLS server implementation tolerate "mismatched" record 10686 protocol version while receiving ClientHello even if the 10687 ClientHello is fragmented. (The server can't insist on the 10688 particular protocol version it has chosen before the ServerHello 10689 message has informed the client about his choice.) 10690 10691 *Bodo Moeller* 10692 10693 * Add RFC 3779 support. 10694 10695 *Rob Austein for ARIN, Ben Laurie* 10696 10697 * Load error codes if they are not already present instead of using a 10698 static variable. This allows them to be cleanly unloaded and reloaded. 10699 Improve header file function name parsing. 10700 10701 *Steve Henson* 10702 10703 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10704 or CAPABILITY handshake as required by RFCs. 10705 10706 *Goetz Babin-Ebell* 10707 10708### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10709 10710 * Introduce limits to prevent malicious keys being able to 10711 cause a denial of service. ([CVE-2006-2940]) 10712 10713 *Steve Henson, Bodo Moeller* 10714 10715 * Fix ASN.1 parsing of certain invalid structures that can result 10716 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10717 10718 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10719 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10720 10721 * Fix SSL client code which could crash if connecting to a 10722 malicious SSLv2 server. ([CVE-2006-4343]) 10723 10724 *Tavis Ormandy and Will Drewry, Google Security Team* 10725 10726 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10727 match only those. Before that, "AES256-SHA" would be interpreted 10728 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10729 the same strength classification in 0.9.7h) as we currently only 10730 have a single AES bit in the ciphersuite description bitmap. 10731 That change, however, also applied to ciphersuite strings such as 10732 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10733 namely, SSL 2.0 ciphersuites in addition to the more common ones 10734 from SSL 3.0/TLS 1.0. 10735 10736 So we change the selection algorithm again: Naming an explicit 10737 ciphersuite selects this one ciphersuite, and any other similar 10738 ciphersuite (same bitmap) from *other* protocol versions. 10739 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10740 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10741 10742 Since SSL 2.0 does not have any ciphersuites for which the 10743 128/256 bit distinction would be relevant, this works for now. 10744 The proper fix will be to use different bits for AES128 and 10745 AES256, which would have avoided the problems from the beginning; 10746 however, bits are scarce, so we can only do this in a new release 10747 (not just a patchlevel) when we can change the SSL_CIPHER 10748 definition to split the single 'unsigned long mask' bitmap into 10749 multiple values to extend the available space. 10750 10751 *Bodo Moeller* 10752 10753### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10754 10755 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10756 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10757 10758 * Add AES IGE and biIGE modes. 10759 10760 *Ben Laurie* 10761 10762 * Change the Unix randomness entropy gathering to use poll() when 10763 possible instead of select(), since the latter has some 10764 undesirable limitations. 10765 10766 *Darryl Miles via Richard Levitte and Bodo Moeller* 10767 10768 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10769 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10770 cannot be implicitly activated as part of, e.g., the "AES" alias. 10771 However, please upgrade to OpenSSL 0.9.9[-dev] for 10772 non-experimental use of the ECC ciphersuites to get TLS extension 10773 support, which is required for curve and point format negotiation 10774 to avoid potential handshake problems. 10775 10776 *Bodo Moeller* 10777 10778 * Disable rogue ciphersuites: 10779 10780 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 10781 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 10782 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 10783 10784 The latter two were purportedly from 10785 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 10786 appear there. 10787 10788 Also deactivate the remaining ciphersuites from 10789 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 10790 unofficial, and the ID has long expired. 10791 10792 *Bodo Moeller* 10793 10794 * Fix RSA blinding Heisenbug (problems sometimes occurred on 10795 dual-core machines) and other potential thread-safety issues. 10796 10797 *Bodo Moeller* 10798 10799 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 10800 versions), which is now available for royalty-free use 10801 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 10802 Also, add Camellia TLS ciphersuites from RFC 4132. 10803 10804 To minimize changes between patchlevels in the OpenSSL 0.9.8 10805 series, Camellia remains excluded from compilation unless OpenSSL 10806 is configured with 'enable-camellia'. 10807 10808 *NTT* 10809 10810 * Disable the padding bug check when compression is in use. The padding 10811 bug check assumes the first packet is of even length, this is not 10812 necessarily true if compression is enabled and can result in false 10813 positives causing handshake failure. The actual bug test is ancient 10814 code so it is hoped that implementations will either have fixed it by 10815 now or any which still have the bug do not support compression. 10816 10817 *Steve Henson* 10818 10819### Changes between 0.9.8a and 0.9.8b [04 May 2006] 10820 10821 * When applying a cipher rule check to see if string match is an explicit 10822 cipher suite and only match that one cipher suite if it is. 10823 10824 *Steve Henson* 10825 10826 * Link in manifests for VC++ if needed. 10827 10828 *Austin Ziegler <halostatue@gmail.com>* 10829 10830 * Update support for ECC-based TLS ciphersuites according to 10831 draft-ietf-tls-ecc-12.txt with proposed changes (but without 10832 TLS extensions, which are supported starting with the 0.9.9 10833 branch, not in the OpenSSL 0.9.8 branch). 10834 10835 *Douglas Stebila* 10836 10837 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 10838 opaque EVP_CIPHER_CTX handling. 10839 10840 *Steve Henson* 10841 10842 * Fixes and enhancements to zlib compression code. We now only use 10843 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 10844 to conform with the standards mentioned here: 10845 <http://www.zlib.net/DLL_FAQ.txt> 10846 Static zlib linking now works on Windows and the new --with-zlib-include 10847 --with-zlib-lib options to Configure can be used to supply the location 10848 of the headers and library. Gracefully handle case where zlib library 10849 can't be loaded. 10850 10851 *Steve Henson* 10852 10853 * Several fixes and enhancements to the OID generation code. The old code 10854 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 10855 handle numbers larger than ULONG_MAX, truncated printing and had a 10856 non standard OBJ_obj2txt() behaviour. 10857 10858 *Steve Henson* 10859 10860 * Add support for building of engines under engine/ as shared libraries 10861 under VC++ build system. 10862 10863 *Steve Henson* 10864 10865 * Corrected the numerous bugs in the Win32 path splitter in DSO. 10866 Hopefully, we will not see any false combination of paths any more. 10867 10868 *Richard Levitte* 10869 10870### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 10871 10872 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 10873 (part of SSL_OP_ALL). This option used to disable the 10874 countermeasure against man-in-the-middle protocol-version 10875 rollback in the SSL 2.0 server implementation, which is a bad 10876 idea. ([CVE-2005-2969]) 10877 10878 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 10879 for Information Security, National Institute of Advanced Industrial 10880 Science and Technology [AIST], Japan)* 10881 10882 * Add two function to clear and return the verify parameter flags. 10883 10884 *Steve Henson* 10885 10886 * Keep cipherlists sorted in the source instead of sorting them at 10887 runtime, thus removing the need for a lock. 10888 10889 *Nils Larsch* 10890 10891 * Avoid some small subgroup attacks in Diffie-Hellman. 10892 10893 *Nick Mathewson and Ben Laurie* 10894 10895 * Add functions for well-known primes. 10896 10897 *Nick Mathewson* 10898 10899 * Extended Windows CE support. 10900 10901 *Satoshi Nakamura and Andy Polyakov* 10902 10903 * Initialize SSL_METHOD structures at compile time instead of during 10904 runtime, thus removing the need for a lock. 10905 10906 *Steve Henson* 10907 10908 * Make PKCS7_decrypt() work even if no certificate is supplied by 10909 attempting to decrypt each encrypted key in turn. Add support to 10910 smime utility. 10911 10912 *Steve Henson* 10913 10914### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 10915 10916[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 10917OpenSSL 0.9.8.] 10918 10919 * Add libcrypto.pc and libssl.pc for those who feel they need them. 10920 10921 *Richard Levitte* 10922 10923 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 10924 key into the same file any more. 10925 10926 *Richard Levitte* 10927 10928 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 10929 10930 *Andy Polyakov* 10931 10932 * Add -utf8 command line and config file option to 'ca'. 10933 10934 *Stefan <stf@udoma.org* 10935 10936 * Removed the macro des_crypt(), as it seems to conflict with some 10937 libraries. Use DES_crypt(). 10938 10939 *Richard Levitte* 10940 10941 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 10942 involves renaming the source and generated shared-libs for 10943 both. The engines will accept the corrected or legacy ids 10944 ('ncipher' and '4758_cca' respectively) when binding. NB, 10945 this only applies when building 'shared'. 10946 10947 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 10948 10949 * Add attribute functions to EVP_PKEY structure. Modify 10950 PKCS12_create() to recognize a CSP name attribute and 10951 use it. Make -CSP option work again in pkcs12 utility. 10952 10953 *Steve Henson* 10954 10955 * Add new functionality to the bn blinding code: 10956 - automatic re-creation of the BN_BLINDING parameters after 10957 a fixed number of uses (currently 32) 10958 - add new function for parameter creation 10959 - introduce flags to control the update behaviour of the 10960 BN_BLINDING parameters 10961 - hide BN_BLINDING structure 10962 Add a second BN_BLINDING slot to the RSA structure to improve 10963 performance when a single RSA object is shared among several 10964 threads. 10965 10966 *Nils Larsch* 10967 10968 * Add support for DTLS. 10969 10970 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 10971 10972 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 10973 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 10974 10975 *Walter Goulet* 10976 10977 * Remove buggy and incomplete DH cert support from 10978 ssl/ssl_rsa.c and ssl/s3_both.c 10979 10980 *Nils Larsch* 10981 10982 * Use SHA-1 instead of MD5 as the default digest algorithm for 10983 the `apps/openssl` commands. 10984 10985 *Nils Larsch* 10986 10987 * Compile clean with "-Wall -Wmissing-prototypes 10988 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 10989 DEBUG_SAFESTACK must also be set. 10990 10991 *Ben Laurie* 10992 10993 * Change ./Configure so that certain algorithms can be disabled by default. 10994 The new counterpiece to "no-xxx" is "enable-xxx". 10995 10996 The patented RC5 and MDC2 algorithms will now be disabled unless 10997 "enable-rc5" and "enable-mdc2", respectively, are specified. 10998 10999 (IDEA remains enabled despite being patented. This is because IDEA 11000 is frequently required for interoperability, and there is no license 11001 fee for non-commercial use. As before, "no-idea" can be used to 11002 avoid this algorithm.) 11003 11004 *Bodo Moeller* 11005 11006 * Add processing of proxy certificates (see RFC 3820). This work was 11007 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 11008 EGEE (Enabling Grids for E-science in Europe). 11009 11010 *Richard Levitte* 11011 11012 * RC4 performance overhaul on modern architectures/implementations, such 11013 as Intel P4, IA-64 and AMD64. 11014 11015 *Andy Polyakov* 11016 11017 * New utility extract-section.pl. This can be used specify an alternative 11018 section number in a pod file instead of having to treat each file as 11019 a separate case in Makefile. This can be done by adding two lines to the 11020 pod file: 11021 11022 =for comment openssl_section:XXX 11023 11024 The blank line is mandatory. 11025 11026 *Steve Henson* 11027 11028 * New arguments -certform, -keyform and -pass for s_client and s_server 11029 to allow alternative format key and certificate files and passphrase 11030 sources. 11031 11032 *Steve Henson* 11033 11034 * New structure X509_VERIFY_PARAM which combines current verify parameters, 11035 update associated structures and add various utility functions. 11036 11037 Add new policy related verify parameters, include policy checking in 11038 standard verify code. Enhance 'smime' application with extra parameters 11039 to support policy checking and print out. 11040 11041 *Steve Henson* 11042 11043 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 11044 Nehemiah processors. These extensions support AES encryption in hardware 11045 as well as RNG (though RNG support is currently disabled). 11046 11047 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 11048 11049 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 11050 11051 *Geoff Thorpe* 11052 11053 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 11054 11055 *Andy Polyakov and a number of other people* 11056 11057 * Improved PowerPC platform support. Most notably BIGNUM assembler 11058 implementation contributed by IBM. 11059 11060 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 11061 11062 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 11063 exponent rather than 'unsigned long'. There is a corresponding change to 11064 the new 'rsa_keygen' element of the RSA_METHOD structure. 11065 11066 *Jelte Jansen, Geoff Thorpe* 11067 11068 * Functionality for creating the initial serial number file is now 11069 moved from CA.pl to the 'ca' utility with a new option -create_serial. 11070 11071 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 11072 number file to 1, which is bound to cause problems. To avoid 11073 the problems while respecting compatibility between different 0.9.7 11074 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 11075 CA.pl for serial number initialization. With the new release 0.9.8, 11076 we can fix the problem directly in the 'ca' utility.) 11077 11078 *Steve Henson* 11079 11080 * Reduced header interdependencies by declaring more opaque objects in 11081 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 11082 give fewer recursive includes, which could break lazy source code - so 11083 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 11084 developers should define this symbol when building and using openssl to 11085 ensure they track the recommended behaviour, interfaces, [etc], but 11086 backwards-compatible behaviour prevails when this isn't defined. 11087 11088 *Geoff Thorpe* 11089 11090 * New function X509_POLICY_NODE_print() which prints out policy nodes. 11091 11092 *Steve Henson* 11093 11094 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 11095 This will generate a random key of the appropriate length based on the 11096 cipher context. The EVP_CIPHER can provide its own random key generation 11097 routine to support keys of a specific form. This is used in the des and 11098 3des routines to generate a key of the correct parity. Update S/MIME 11099 code to use new functions and hence generate correct parity DES keys. 11100 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 11101 valid (weak or incorrect parity). 11102 11103 *Steve Henson* 11104 11105 * Add a local set of CRLs that can be used by X509_verify_cert() as well 11106 as looking them up. This is useful when the verified structure may contain 11107 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 11108 present unless the new PKCS7_NO_CRL flag is asserted. 11109 11110 *Steve Henson* 11111 11112 * Extend ASN1 oid configuration module. It now additionally accepts the 11113 syntax: 11114 11115 shortName = some long name, 1.2.3.4 11116 11117 *Steve Henson* 11118 11119 * Reimplemented the BN_CTX implementation. There is now no more static 11120 limitation on the number of variables it can handle nor the depth of the 11121 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 11122 information can now expand as required, and rather than having a single 11123 static array of bignums, BN_CTX now uses a linked-list of such arrays 11124 allowing it to expand on demand whilst maintaining the usefulness of 11125 BN_CTX's "bundling". 11126 11127 *Geoff Thorpe* 11128 11129 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 11130 to allow all RSA operations to function using a single BN_CTX. 11131 11132 *Geoff Thorpe* 11133 11134 * Preliminary support for certificate policy evaluation and checking. This 11135 is initially intended to pass the tests outlined in "Conformance Testing 11136 of Relying Party Client Certificate Path Processing Logic" v1.07. 11137 11138 *Steve Henson* 11139 11140 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 11141 remained unused and not that useful. A variety of other little bignum 11142 tweaks and fixes have also been made continuing on from the audit (see 11143 below). 11144 11145 *Geoff Thorpe* 11146 11147 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 11148 associated ASN1, EVP and SSL functions and old ASN1 macros. 11149 11150 *Richard Levitte* 11151 11152 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 11153 and this should never fail. So the return value from the use of 11154 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11155 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11156 11157 *Geoff Thorpe* 11158 11159 * BN_CTX_get() should return zero-valued bignums, providing the same 11160 initialised value as BN_new(). 11161 11162 *Geoff Thorpe, suggested by Ulf Möller* 11163 11164 * Support for inhibitAnyPolicy certificate extension. 11165 11166 *Steve Henson* 11167 11168 * An audit of the BIGNUM code is underway, for which debugging code is 11169 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11170 is considered valid when processing BIGNUMs, and causes execution to 11171 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11172 further steps are taken to deliberately pollute unused data in BIGNUM 11173 structures to try and expose faulty code further on. For now, openssl will 11174 (in its default mode of operation) continue to tolerate the inconsistent 11175 forms that it has tolerated in the past, but authors and packagers should 11176 consider trying openssl and their own applications when compiled with 11177 these debugging symbols defined. It will help highlight potential bugs in 11178 their own code, and will improve the test coverage for OpenSSL itself. At 11179 some point, these tighter rules will become openssl's default to improve 11180 maintainability, though the assert()s and other overheads will remain only 11181 in debugging configurations. See bn.h for more details. 11182 11183 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11184 11185 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11186 that can only be obtained through BN_CTX_new() (which implicitly 11187 initialises it). The presence of this function only made it possible 11188 to overwrite an existing structure (and cause memory leaks). 11189 11190 *Geoff Thorpe* 11191 11192 * Because of the callback-based approach for implementing LHASH as a 11193 template type, lh_insert() adds opaque objects to hash-tables and 11194 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11195 to clean up those corresponding objects before destroying the hash table 11196 (and losing the object pointers). So some over-zealous constifications in 11197 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11198 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11199 prototyped to have "const" restrictions on the object pointers they are 11200 given (and so aren't required to cast them away any more). 11201 11202 *Geoff Thorpe* 11203 11204 * The tmdiff.h API was so ugly and minimal that our own timing utility 11205 (speed) prefers to use its own implementation. The two implementations 11206 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11207 its object type properly exposed (MS_TM) instead of casting to/from 11208 `char *`. This may still change yet if someone realises MS_TM and 11209 `ms_time_***` 11210 aren't necessarily the greatest nomenclatures - but this is what was used 11211 internally to the implementation so I've used that for now. 11212 11213 *Geoff Thorpe* 11214 11215 * Ensure that deprecated functions do not get compiled when 11216 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11217 the self-tests were still using deprecated key-generation functions so 11218 these have been updated also. 11219 11220 *Geoff Thorpe* 11221 11222 * Reorganise PKCS#7 code to separate the digest location functionality 11223 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11224 New function PKCS7_set_digest() to set the digest type for PKCS#7 11225 digestedData type. Add additional code to correctly generate the 11226 digestedData type and add support for this type in PKCS7 initialization 11227 functions. 11228 11229 *Steve Henson* 11230 11231 * New function PKCS7_set0_type_other() this initializes a PKCS7 11232 structure of type "other". 11233 11234 *Steve Henson* 11235 11236 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11237 sure the loop does correctly stop and breaking ("division by zero") 11238 modulus operations are not performed. The (pre-generated) prime 11239 table crypto/bn/bn_prime.h was already correct, but it could not be 11240 re-generated on some platforms because of the "division by zero" 11241 situation in the script. 11242 11243 *Ralf S. Engelschall* 11244 11245 * Update support for ECC-based TLS ciphersuites according to 11246 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11247 SHA-1 now is only used for "small" curves (where the 11248 representation of a field element takes up to 24 bytes); for 11249 larger curves, the field element resulting from ECDH is directly 11250 used as premaster secret. 11251 11252 *Douglas Stebila (Sun Microsystems Laboratories)* 11253 11254 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11255 curve secp160r1 to the tests. 11256 11257 *Douglas Stebila (Sun Microsystems Laboratories)* 11258 11259 * Add the possibility to load symbols globally with DSO. 11260 11261 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11262 11263 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11264 control of the error stack. 11265 11266 *Richard Levitte* 11267 11268 * Add support for STORE in ENGINE. 11269 11270 *Richard Levitte* 11271 11272 * Add the STORE type. The intention is to provide a common interface 11273 to certificate and key stores, be they simple file-based stores, or 11274 HSM-type store, or LDAP stores, or... 11275 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11276 11277 *Richard Levitte* 11278 11279 * Add a generic structure called OPENSSL_ITEM. This can be used to 11280 pass a list of arguments to any function as well as provide a way 11281 for a function to pass data back to the caller. 11282 11283 *Richard Levitte* 11284 11285 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11286 works like BUF_strdup() but can be used to duplicate a portion of 11287 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11288 a memory area. 11289 11290 *Richard Levitte* 11291 11292 * Add the function sk_find_ex() which works like sk_find(), but will 11293 return an index to an element even if an exact match couldn't be 11294 found. The index is guaranteed to point at the element where the 11295 searched-for key would be inserted to preserve sorting order. 11296 11297 *Richard Levitte* 11298 11299 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11300 takes an extra flags argument for optional functionality. Currently, 11301 the following flags are defined: 11302 11303 OBJ_BSEARCH_VALUE_ON_NOMATCH 11304 This one gets OBJ_bsearch_ex() to return a pointer to the first 11305 element where the comparing function returns a negative or zero 11306 number. 11307 11308 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11309 This one gets OBJ_bsearch_ex() to return a pointer to the first 11310 element where the comparing function returns zero. This is useful 11311 if there are more than one element where the comparing function 11312 returns zero. 11313 11314 *Richard Levitte* 11315 11316 * Make it possible to create self-signed certificates with 'openssl ca' 11317 in such a way that the self-signed certificate becomes part of the 11318 CA database and uses the same mechanisms for serial number generation 11319 as all other certificate signing. The new flag '-selfsign' enables 11320 this functionality. Adapt CA.sh and CA.pl.in. 11321 11322 *Richard Levitte* 11323 11324 * Add functionality to check the public key of a certificate request 11325 against a given private. This is useful to check that a certificate 11326 request can be signed by that key (self-signing). 11327 11328 *Richard Levitte* 11329 11330 * Make it possible to have multiple active certificates with the same 11331 subject in the CA index file. This is done only if the keyword 11332 'unique_subject' is set to 'no' in the main CA section (default 11333 if 'CA_default') of the configuration file. The value is saved 11334 with the database itself in a separate index attribute file, 11335 named like the index file with '.attr' appended to the name. 11336 11337 *Richard Levitte* 11338 11339 * Generate multi-valued AVAs using '+' notation in config files for 11340 req and dirName. 11341 11342 *Steve Henson* 11343 11344 * Support for nameConstraints certificate extension. 11345 11346 *Steve Henson* 11347 11348 * Support for policyConstraints certificate extension. 11349 11350 *Steve Henson* 11351 11352 * Support for policyMappings certificate extension. 11353 11354 *Steve Henson* 11355 11356 * Make sure the default DSA_METHOD implementation only uses its 11357 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11358 and change its own handlers to be NULL so as to remove unnecessary 11359 indirection. This lets alternative implementations fallback to the 11360 default implementation more easily. 11361 11362 *Geoff Thorpe* 11363 11364 * Support for directoryName in GeneralName related extensions 11365 in config files. 11366 11367 *Steve Henson* 11368 11369 * Make it possible to link applications using Makefile.shared. 11370 Make that possible even when linking against static libraries! 11371 11372 *Richard Levitte* 11373 11374 * Support for single pass processing for S/MIME signing. This now 11375 means that S/MIME signing can be done from a pipe, in addition 11376 cleartext signing (multipart/signed type) is effectively streaming 11377 and the signed data does not need to be all held in memory. 11378 11379 This is done with a new flag PKCS7_STREAM. When this flag is set 11380 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11381 is done after the data is output (and digests calculated) in 11382 SMIME_write_PKCS7(). 11383 11384 *Steve Henson* 11385 11386 * Add full support for -rpath/-R, both in shared libraries and 11387 applications, at least on the platforms where it's known how 11388 to do it. 11389 11390 *Richard Levitte* 11391 11392 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11393 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11394 will now compute a table of multiples of the generator that 11395 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11396 faster (notably in the case of a single point multiplication, 11397 scalar * generator). 11398 11399 *Nils Larsch, Bodo Moeller* 11400 11401 * IPv6 support for certificate extensions. The various extensions 11402 which use the IP:a.b.c.d can now take IPv6 addresses using the 11403 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11404 correctly. 11405 11406 *Steve Henson* 11407 11408 * Added an ENGINE that implements RSA by performing private key 11409 exponentiations with the GMP library. The conversions to and from 11410 GMP's mpz_t format aren't optimised nor are any montgomery forms 11411 cached, and on x86 it appears OpenSSL's own performance has caught up. 11412 However there are likely to be other architectures where GMP could 11413 provide a boost. This ENGINE is not built in by default, but it can be 11414 specified at Configure time and should be accompanied by the necessary 11415 linker additions, eg; 11416 ./config -DOPENSSL_USE_GMP -lgmp 11417 11418 *Geoff Thorpe* 11419 11420 * "openssl engine" will not display ENGINE/DSO load failure errors when 11421 testing availability of engines with "-t" - the old behaviour is 11422 produced by increasing the feature's verbosity with "-tt". 11423 11424 *Geoff Thorpe* 11425 11426 * ECDSA routines: under certain error conditions uninitialized BN objects 11427 could be freed. Solution: make sure initialization is performed early 11428 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11429 via PR#459) 11430 11431 *Lutz Jaenicke* 11432 11433 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11434 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11435 software implementations. For DSA and DH, parameter generation can 11436 also be overridden by providing the appropriate method callbacks. 11437 11438 *Geoff Thorpe* 11439 11440 * Change the "progress" mechanism used in key-generation and 11441 primality testing to functions that take a new BN_GENCB pointer in 11442 place of callback/argument pairs. The new API functions have `_ex` 11443 postfixes and the older functions are reimplemented as wrappers for 11444 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11445 declarations of the old functions to help (graceful) attempts to 11446 migrate to the new functions. Also, the new key-generation API 11447 functions operate on a caller-supplied key-structure and return 11448 success/failure rather than returning a key or NULL - this is to 11449 help make "keygen" another member function of RSA_METHOD etc. 11450 11451 Example for using the new callback interface: 11452 11453 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11454 void *my_arg = ...; 11455 BN_GENCB my_cb; 11456 11457 BN_GENCB_set(&my_cb, my_callback, my_arg); 11458 11459 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11460 /* For the meaning of a, b in calls to my_callback(), see the 11461 * documentation of the function that calls the callback. 11462 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11463 * my_callback should return 1 if it wants BN_is_prime_ex() 11464 * to continue, or 0 to stop. 11465 */ 11466 11467 *Geoff Thorpe* 11468 11469 * Change the ZLIB compression method to be stateful, and make it 11470 available to TLS with the number defined in 11471 draft-ietf-tls-compression-04.txt. 11472 11473 *Richard Levitte* 11474 11475 * Add the ASN.1 structures and functions for CertificatePair, which 11476 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11477 11478 CertificatePair ::= SEQUENCE { 11479 forward [0] Certificate OPTIONAL, 11480 reverse [1] Certificate OPTIONAL, 11481 -- at least one of the pair shall be present -- } 11482 11483 Also implement the PEM functions to read and write certificate 11484 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11485 11486 This needed to be defined, mostly for the sake of the LDAP 11487 attribute crossCertificatePair, but may prove useful elsewhere as 11488 well. 11489 11490 *Richard Levitte* 11491 11492 * Make it possible to inhibit symlinking of shared libraries in 11493 Makefile.shared, for Cygwin's sake. 11494 11495 *Richard Levitte* 11496 11497 * Extend the BIGNUM API by creating a function 11498 void BN_set_negative(BIGNUM *a, int neg); 11499 and a macro that behave like 11500 int BN_is_negative(const BIGNUM *a); 11501 11502 to avoid the need to access 'a->neg' directly in applications. 11503 11504 *Nils Larsch* 11505 11506 * Implement fast modular reduction for pseudo-Mersenne primes 11507 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11508 EC_GROUP_new_curve_GFp() will now automatically use this 11509 if applicable. 11510 11511 *Nils Larsch <nla@trustcenter.de>* 11512 11513 * Add new lock type (CRYPTO_LOCK_BN). 11514 11515 *Bodo Moeller* 11516 11517 * Change the ENGINE framework to automatically load engines 11518 dynamically from specific directories unless they could be 11519 found to already be built in or loaded. Move all the 11520 current engines except for the cryptodev one to a new 11521 directory engines/. 11522 The engines in engines/ are built as shared libraries if 11523 the "shared" options was given to ./Configure or ./config. 11524 Otherwise, they are inserted in libcrypto.a. 11525 /usr/local/ssl/engines is the default directory for dynamic 11526 engines, but that can be overridden at configure time through 11527 the usual use of --prefix and/or --openssldir, and at run 11528 time with the environment variable OPENSSL_ENGINES. 11529 11530 *Geoff Thorpe and Richard Levitte* 11531 11532 * Add Makefile.shared, a helper makefile to build shared 11533 libraries. Adapt Makefile.org. 11534 11535 *Richard Levitte* 11536 11537 * Add version info to Win32 DLLs. 11538 11539 *Peter 'Luna' Runestig" <peter@runestig.com>* 11540 11541 * Add new 'medium level' PKCS#12 API. Certificates and keys 11542 can be added using this API to created arbitrary PKCS#12 11543 files while avoiding the low-level API. 11544 11545 New options to PKCS12_create(), key or cert can be NULL and 11546 will then be omitted from the output file. The encryption 11547 algorithm NIDs can be set to -1 for no encryption, the mac 11548 iteration count can be set to 0 to omit the mac. 11549 11550 Enhance pkcs12 utility by making the -nokeys and -nocerts 11551 options work when creating a PKCS#12 file. New option -nomac 11552 to omit the mac, NONE can be set for an encryption algorithm. 11553 New code is modified to use the enhanced PKCS12_create() 11554 instead of the low-level API. 11555 11556 *Steve Henson* 11557 11558 * Extend ASN1 encoder to support indefinite length constructed 11559 encoding. This can output sequences tags and octet strings in 11560 this form. Modify pk7_asn1.c to support indefinite length 11561 encoding. This is experimental and needs additional code to 11562 be useful, such as an ASN1 bio and some enhanced streaming 11563 PKCS#7 code. 11564 11565 Extend template encode functionality so that tagging is passed 11566 down to the template encoder. 11567 11568 *Steve Henson* 11569 11570 * Let 'openssl req' fail if an argument to '-newkey' is not 11571 recognized instead of using RSA as a default. 11572 11573 *Bodo Moeller* 11574 11575 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11576 As these are not official, they are not included in "ALL"; 11577 the "ECCdraft" ciphersuite group alias can be used to select them. 11578 11579 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11580 11581 * Add ECDH engine support. 11582 11583 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11584 11585 * Add ECDH in new directory crypto/ecdh/. 11586 11587 *Douglas Stebila (Sun Microsystems Laboratories)* 11588 11589 * Let BN_rand_range() abort with an error after 100 iterations 11590 without success (which indicates a broken PRNG). 11591 11592 *Bodo Moeller* 11593 11594 * Change BN_mod_sqrt() so that it verifies that the input value 11595 is really the square of the return value. (Previously, 11596 BN_mod_sqrt would show GIGO behaviour.) 11597 11598 *Bodo Moeller* 11599 11600 * Add named elliptic curves over binary fields from X9.62, SECG, 11601 and WAP/WTLS; add OIDs that were still missing. 11602 11603 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11604 11605 * Extend the EC library for elliptic curves over binary fields 11606 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11607 New EC_METHOD: 11608 11609 EC_GF2m_simple_method 11610 11611 New API functions: 11612 11613 EC_GROUP_new_curve_GF2m 11614 EC_GROUP_set_curve_GF2m 11615 EC_GROUP_get_curve_GF2m 11616 EC_POINT_set_affine_coordinates_GF2m 11617 EC_POINT_get_affine_coordinates_GF2m 11618 EC_POINT_set_compressed_coordinates_GF2m 11619 11620 Point compression for binary fields is disabled by default for 11621 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11622 enable it). 11623 11624 As binary polynomials are represented as BIGNUMs, various members 11625 of the EC_GROUP and EC_POINT data structures can be shared 11626 between the implementations for prime fields and binary fields; 11627 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11628 are essentially identical to their `..._GFp` counterparts. 11629 (For simplicity, the `..._GFp` prefix has been dropped from 11630 various internal method names.) 11631 11632 An internal 'field_div' method (similar to 'field_mul' and 11633 'field_sqr') has been added; this is used only for binary fields. 11634 11635 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11636 11637 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11638 through methods ('mul', 'precompute_mult'). 11639 11640 The generic implementations (now internally called 'ec_wNAF_mul' 11641 and 'ec_wNAF_precomputed_mult') remain the default if these 11642 methods are undefined. 11643 11644 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11645 11646 * New function EC_GROUP_get_degree, which is defined through 11647 EC_METHOD. For curves over prime fields, this returns the bit 11648 length of the modulus. 11649 11650 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11651 11652 * New functions EC_GROUP_dup, EC_POINT_dup. 11653 (These simply call ..._new and ..._copy). 11654 11655 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11656 11657 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11658 Polynomials are represented as BIGNUMs (where the sign bit is not 11659 used) in the following functions [macros]: 11660 11661 BN_GF2m_add 11662 BN_GF2m_sub [= BN_GF2m_add] 11663 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11664 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11665 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11666 BN_GF2m_mod_inv 11667 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11668 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11669 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11670 BN_GF2m_cmp [= BN_ucmp] 11671 11672 (Note that only the 'mod' functions are actually for fields GF(2^m). 11673 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11674 11675 For some functions, an the irreducible polynomial defining a 11676 field can be given as an 'unsigned int[]' with strictly 11677 decreasing elements giving the indices of those bits that are set; 11678 i.e., p[] represents the polynomial 11679 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11680 where 11681 p[0] > p[1] > ... > p[k] = 0. 11682 This applies to the following functions: 11683 11684 BN_GF2m_mod_arr 11685 BN_GF2m_mod_mul_arr 11686 BN_GF2m_mod_sqr_arr 11687 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11688 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11689 BN_GF2m_mod_exp_arr 11690 BN_GF2m_mod_sqrt_arr 11691 BN_GF2m_mod_solve_quad_arr 11692 BN_GF2m_poly2arr 11693 BN_GF2m_arr2poly 11694 11695 Conversion can be performed by the following functions: 11696 11697 BN_GF2m_poly2arr 11698 BN_GF2m_arr2poly 11699 11700 bntest.c has additional tests for binary polynomial arithmetic. 11701 11702 Two implementations for BN_GF2m_mod_div() are available. 11703 The default algorithm simply uses BN_GF2m_mod_inv() and 11704 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11705 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11706 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11707 11708 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11709 11710 * Add new error code 'ERR_R_DISABLED' that can be used when some 11711 functionality is disabled at compile-time. 11712 11713 *Douglas Stebila <douglas.stebila@sun.com>* 11714 11715 * Change default behaviour of 'openssl asn1parse' so that more 11716 information is visible when viewing, e.g., a certificate: 11717 11718 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11719 mode the content of non-printable OCTET STRINGs is output in a 11720 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11721 avoid the appearance of a printable string. 11722 11723 *Nils Larsch <nla@trustcenter.de>* 11724 11725 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11726 functions 11727 EC_GROUP_set_asn1_flag() 11728 EC_GROUP_get_asn1_flag() 11729 EC_GROUP_set_point_conversion_form() 11730 EC_GROUP_get_point_conversion_form() 11731 These control ASN1 encoding details: 11732 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11733 has been set to OPENSSL_EC_NAMED_CURVE. 11734 - Points are encoded in uncompressed form by default; options for 11735 asn1_for are as for point2oct, namely 11736 POINT_CONVERSION_COMPRESSED 11737 POINT_CONVERSION_UNCOMPRESSED 11738 POINT_CONVERSION_HYBRID 11739 11740 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11741 functions 11742 EC_GROUP_set_seed() 11743 EC_GROUP_get0_seed() 11744 EC_GROUP_get_seed_len() 11745 This is used only for ASN1 purposes (so far). 11746 11747 *Nils Larsch <nla@trustcenter.de>* 11748 11749 * Add 'field_type' member to EC_METHOD, which holds the NID 11750 of the appropriate field type OID. The new function 11751 EC_METHOD_get_field_type() returns this value. 11752 11753 *Nils Larsch <nla@trustcenter.de>* 11754 11755 * Add functions 11756 EC_POINT_point2bn() 11757 EC_POINT_bn2point() 11758 EC_POINT_point2hex() 11759 EC_POINT_hex2point() 11760 providing useful interfaces to EC_POINT_point2oct() and 11761 EC_POINT_oct2point(). 11762 11763 *Nils Larsch <nla@trustcenter.de>* 11764 11765 * Change internals of the EC library so that the functions 11766 EC_GROUP_set_generator() 11767 EC_GROUP_get_generator() 11768 EC_GROUP_get_order() 11769 EC_GROUP_get_cofactor() 11770 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11771 to methods, which would lead to unnecessary code duplication when 11772 adding different types of curves. 11773 11774 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11775 11776 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11777 arithmetic, and such that modified wNAFs are generated 11778 (which avoid length expansion in many cases). 11779 11780 *Bodo Moeller* 11781 11782 * Add a function EC_GROUP_check_discriminant() (defined via 11783 EC_METHOD) that verifies that the curve discriminant is non-zero. 11784 11785 Add a function EC_GROUP_check() that makes some sanity tests 11786 on a EC_GROUP, its generator and order. This includes 11787 EC_GROUP_check_discriminant(). 11788 11789 *Nils Larsch <nla@trustcenter.de>* 11790 11791 * Add ECDSA in new directory crypto/ecdsa/. 11792 11793 Add applications 'openssl ecparam' and 'openssl ecdsa' 11794 (these are based on 'openssl dsaparam' and 'openssl dsa'). 11795 11796 ECDSA support is also included in various other files across the 11797 library. Most notably, 11798 - 'openssl req' now has a '-newkey ecdsa:file' option; 11799 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 11800 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 11801 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 11802 them suitable for ECDSA where domain parameters must be 11803 extracted before the specific public key; 11804 - ECDSA engine support has been added. 11805 11806 *Nils Larsch <nla@trustcenter.de>* 11807 11808 * Include some named elliptic curves, and add OIDs from X9.62, 11809 SECG, and WAP/WTLS. Each curve can be obtained from the new 11810 function 11811 EC_GROUP_new_by_curve_name(), 11812 and the list of available named curves can be obtained with 11813 EC_get_builtin_curves(). 11814 Also add a 'curve_name' member to EC_GROUP objects, which can be 11815 accessed via 11816 EC_GROUP_set_curve_name() 11817 EC_GROUP_get_curve_name() 11818 11819 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 11820 11821 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 11822 was actually never needed) and in BN_mul(). The removal in BN_mul() 11823 required a small change in bn_mul_part_recursive() and the addition 11824 of the functions bn_cmp_part_words(), bn_sub_part_words() and 11825 bn_add_part_words(), which do the same thing as bn_cmp_words(), 11826 bn_sub_words() and bn_add_words() except they take arrays with 11827 differing sizes. 11828 11829 *Richard Levitte* 11830 11831### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 11832 11833 * Cleanse PEM buffers before freeing them since they may contain 11834 sensitive data. 11835 11836 *Benjamin Bennett <ben@psc.edu>* 11837 11838 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 11839 a ciphersuite string such as "DEFAULT:RSA" cannot enable 11840 authentication-only ciphersuites. 11841 11842 *Bodo Moeller* 11843 11844 * Since AES128 and AES256 share a single mask bit in the logic of 11845 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 11846 kludge to work properly if AES128 is available and AES256 isn't. 11847 11848 *Victor Duchovni* 11849 11850 * Expand security boundary to match 1.1.1 module. 11851 11852 *Steve Henson* 11853 11854 * Remove redundant features: hash file source, editing of test vectors 11855 modify fipsld to use external fips_premain.c signature. 11856 11857 *Steve Henson* 11858 11859 * New perl script mkfipsscr.pl to create shell scripts or batch files to 11860 run algorithm test programs. 11861 11862 *Steve Henson* 11863 11864 * Make algorithm test programs more tolerant of whitespace. 11865 11866 *Steve Henson* 11867 11868 * Have SSL/TLS server implementation tolerate "mismatched" record 11869 protocol version while receiving ClientHello even if the 11870 ClientHello is fragmented. (The server can't insist on the 11871 particular protocol version it has chosen before the ServerHello 11872 message has informed the client about his choice.) 11873 11874 *Bodo Moeller* 11875 11876 * Load error codes if they are not already present instead of using a 11877 static variable. This allows them to be cleanly unloaded and reloaded. 11878 11879 *Steve Henson* 11880 11881### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 11882 11883 * Introduce limits to prevent malicious keys being able to 11884 cause a denial of service. ([CVE-2006-2940]) 11885 11886 *Steve Henson, Bodo Moeller* 11887 11888 * Fix ASN.1 parsing of certain invalid structures that can result 11889 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 11890 11891 * Fix buffer overflow in SSL_get_shared_ciphers() function. 11892 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 11893 11894 * Fix SSL client code which could crash if connecting to a 11895 malicious SSLv2 server. ([CVE-2006-4343]) 11896 11897 *Tavis Ormandy and Will Drewry, Google Security Team* 11898 11899 * Change ciphersuite string processing so that an explicit 11900 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 11901 will no longer include "AES128-SHA"), and any other similar 11902 ciphersuite (same bitmap) from *other* protocol versions (so that 11903 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 11904 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 11905 changes from 0.9.8b and 0.9.8d. 11906 11907 *Bodo Moeller* 11908 11909### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 11910 11911 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 11912 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 11913 11914 * Change the Unix randomness entropy gathering to use poll() when 11915 possible instead of select(), since the latter has some 11916 undesirable limitations. 11917 11918 *Darryl Miles via Richard Levitte and Bodo Moeller* 11919 11920 * Disable rogue ciphersuites: 11921 11922 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11923 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11924 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11925 11926 The latter two were purportedly from 11927 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11928 appear there. 11929 11930 Also deactivate the remaining ciphersuites from 11931 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11932 unofficial, and the ID has long expired. 11933 11934 *Bodo Moeller* 11935 11936 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11937 dual-core machines) and other potential thread-safety issues. 11938 11939 *Bodo Moeller* 11940 11941### Changes between 0.9.7i and 0.9.7j [04 May 2006] 11942 11943 * Adapt fipsld and the build system to link against the validated FIPS 11944 module in FIPS mode. 11945 11946 *Steve Henson* 11947 11948 * Fixes for VC++ 2005 build under Windows. 11949 11950 *Steve Henson* 11951 11952 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 11953 from a Windows bash shell such as MSYS. It is autodetected from the 11954 "config" script when run from a VC++ environment. Modify standard VC++ 11955 build to use fipscanister.o from the GNU make build. 11956 11957 *Steve Henson* 11958 11959### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 11960 11961 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 11962 The value now differs depending on if you build for FIPS or not. 11963 BEWARE! A program linked with a shared FIPSed libcrypto can't be 11964 safely run with a non-FIPSed libcrypto, as it may crash because of 11965 the difference induced by this change. 11966 11967 *Andy Polyakov* 11968 11969### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 11970 11971 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11972 (part of SSL_OP_ALL). This option used to disable the 11973 countermeasure against man-in-the-middle protocol-version 11974 rollback in the SSL 2.0 server implementation, which is a bad 11975 idea. ([CVE-2005-2969]) 11976 11977 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11978 for Information Security, National Institute of Advanced Industrial 11979 Science and Technology [AIST, Japan)]* 11980 11981 * Minimal support for X9.31 signatures and PSS padding modes. This is 11982 mainly for FIPS compliance and not fully integrated at this stage. 11983 11984 *Steve Henson* 11985 11986 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 11987 the exponentiation using a fixed-length exponent. (Otherwise, 11988 the information leaked through timing could expose the secret key 11989 after many signatures; cf. Bleichenbacher's attack on DSA with 11990 biased k.) 11991 11992 *Bodo Moeller* 11993 11994 * Make a new fixed-window mod_exp implementation the default for 11995 RSA, DSA, and DH private-key operations so that the sequence of 11996 squares and multiplies and the memory access pattern are 11997 independent of the particular secret key. This will mitigate 11998 cache-timing and potential related attacks. 11999 12000 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 12001 and this is automatically used by BN_mod_exp_mont() if the new flag 12002 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 12003 will use this BN flag for private exponents unless the flag 12004 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 12005 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 12006 12007 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 12008 12009 * Change the client implementation for SSLv23_method() and 12010 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 12011 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 12012 (Previously, the SSL 2.0 backwards compatible Client Hello 12013 message format would be used even with SSL_OP_NO_SSLv2.) 12014 12015 *Bodo Moeller* 12016 12017 * Add support for smime-type MIME parameter in S/MIME messages which some 12018 clients need. 12019 12020 *Steve Henson* 12021 12022 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 12023 a threadsafe manner. Modify rsa code to use new function and add calls 12024 to dsa and dh code (which had race conditions before). 12025 12026 *Steve Henson* 12027 12028 * Include the fixed error library code in the C error file definitions 12029 instead of fixing them up at runtime. This keeps the error code 12030 structures constant. 12031 12032 *Steve Henson* 12033 12034### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 12035 12036[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 12037OpenSSL 0.9.8.] 12038 12039 * Fixes for newer kerberos headers. NB: the casts are needed because 12040 the 'length' field is signed on one version and unsigned on another 12041 with no (?) obvious way to tell the difference, without these VC++ 12042 complains. Also the "definition" of FAR (blank) is no longer included 12043 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 12044 some needed definitions. 12045 12046 *Steve Henson* 12047 12048 * Undo Cygwin change. 12049 12050 *Ulf Möller* 12051 12052 * Added support for proxy certificates according to RFC 3820. 12053 Because they may be a security thread to unaware applications, 12054 they must be explicitly allowed in run-time. See 12055 docs/HOWTO/proxy_certificates.txt for further information. 12056 12057 *Richard Levitte* 12058 12059### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 12060 12061 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 12062 server and client random values. Previously 12063 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 12064 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 12065 12066 This change has negligible security impact because: 12067 12068 1. Server and client random values still have 24 bytes of pseudo random 12069 data. 12070 12071 2. Server and client random values are sent in the clear in the initial 12072 handshake. 12073 12074 3. The master secret is derived using the premaster secret (48 bytes in 12075 size for static RSA ciphersuites) as well as client server and random 12076 values. 12077 12078 The OpenSSL team would like to thank the UK NISCC for bringing this issue 12079 to our attention. 12080 12081 *Stephen Henson, reported by UK NISCC* 12082 12083 * Use Windows randomness collection on Cygwin. 12084 12085 *Ulf Möller* 12086 12087 * Fix hang in EGD/PRNGD query when communication socket is closed 12088 prematurely by EGD/PRNGD. 12089 12090 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 12091 12092 * Prompt for pass phrases when appropriate for PKCS12 input format. 12093 12094 *Steve Henson* 12095 12096 * Back-port of selected performance improvements from development 12097 branch, as well as improved support for PowerPC platforms. 12098 12099 *Andy Polyakov* 12100 12101 * Add lots of checks for memory allocation failure, error codes to indicate 12102 failure and freeing up memory if a failure occurs. 12103 12104 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 12105 12106 * Add new -passin argument to dgst. 12107 12108 *Steve Henson* 12109 12110 * Perform some character comparisons of different types in X509_NAME_cmp: 12111 this is needed for some certificates that re-encode DNs into UTF8Strings 12112 (in violation of RFC3280) and can't or won't issue name rollover 12113 certificates. 12114 12115 *Steve Henson* 12116 12117 * Make an explicit check during certificate validation to see that 12118 the CA setting in each certificate on the chain is correct. As a 12119 side effect always do the following basic checks on extensions, 12120 not just when there's an associated purpose to the check: 12121 12122 - if there is an unhandled critical extension (unless the user 12123 has chosen to ignore this fault) 12124 - if the path length has been exceeded (if one is set at all) 12125 - that certain extensions fit the associated purpose (if one has 12126 been given) 12127 12128 *Richard Levitte* 12129 12130### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 12131 12132 * Avoid a race condition when CRLs are checked in a multi threaded 12133 environment. This would happen due to the reordering of the revoked 12134 entries during signature checking and serial number lookup. Now the 12135 encoding is cached and the serial number sort performed under a lock. 12136 Add new STACK function sk_is_sorted(). 12137 12138 *Steve Henson* 12139 12140 * Add Delta CRL to the extension code. 12141 12142 *Steve Henson* 12143 12144 * Various fixes to s3_pkt.c so alerts are sent properly. 12145 12146 *David Holmes <d.holmes@f5.com>* 12147 12148 * Reduce the chances of duplicate issuer name and serial numbers (in 12149 violation of RFC3280) using the OpenSSL certificate creation utilities. 12150 This is done by creating a random 64 bit value for the initial serial 12151 number when a serial number file is created or when a self signed 12152 certificate is created using 'openssl req -x509'. The initial serial 12153 number file is created using 'openssl x509 -next_serial' in CA.pl 12154 rather than being initialized to 1. 12155 12156 *Steve Henson* 12157 12158### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12159 12160 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12161 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12162 12163 *Joe Orton, Steve Henson* 12164 12165 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12166 ([CVE-2004-0112]) 12167 12168 *Joe Orton, Steve Henson* 12169 12170 * Make it possible to have multiple active certificates with the same 12171 subject in the CA index file. This is done only if the keyword 12172 'unique_subject' is set to 'no' in the main CA section (default 12173 if 'CA_default') of the configuration file. The value is saved 12174 with the database itself in a separate index attribute file, 12175 named like the index file with '.attr' appended to the name. 12176 12177 *Richard Levitte* 12178 12179 * X509 verify fixes. Disable broken certificate workarounds when 12180 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12181 keyUsage extension present. Don't accept CRLs with unhandled critical 12182 extensions: since verify currently doesn't process CRL extensions this 12183 rejects a CRL with *any* critical extensions. Add new verify error codes 12184 for these cases. 12185 12186 *Steve Henson* 12187 12188 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12189 A clarification of RFC2560 will require the use of OCTET STRINGs and 12190 some implementations cannot handle the current raw format. Since OpenSSL 12191 copies and compares OCSP nonces as opaque blobs without any attempt at 12192 parsing them this should not create any compatibility issues. 12193 12194 *Steve Henson* 12195 12196 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12197 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12198 this HMAC (and other) operations are several times slower than OpenSSL 12199 < 0.9.7. 12200 12201 *Steve Henson* 12202 12203 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12204 12205 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12206 12207 * Use the correct content when signing type "other". 12208 12209 *Steve Henson* 12210 12211### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12212 12213 * Fix various bugs revealed by running the NISCC test suite: 12214 12215 Stop out of bounds reads in the ASN1 code when presented with 12216 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12217 12218 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12219 12220 If verify callback ignores invalid public key errors don't try to check 12221 certificate signature with the NULL public key. 12222 12223 *Steve Henson* 12224 12225 * New -ignore_err option in ocsp application to stop the server 12226 exiting on the first error in a request. 12227 12228 *Steve Henson* 12229 12230 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12231 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12232 specifications. 12233 12234 *Steve Henson* 12235 12236 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12237 extra data after the compression methods not only for TLS 1.0 12238 but also for SSL 3.0 (as required by the specification). 12239 12240 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12241 12242 * Change X509_certificate_type() to mark the key as exported/exportable 12243 when it's 512 *bits* long, not 512 bytes. 12244 12245 *Richard Levitte* 12246 12247 * Change AES_cbc_encrypt() so it outputs exact multiple of 12248 blocks during encryption. 12249 12250 *Richard Levitte* 12251 12252 * Various fixes to base64 BIO and non blocking I/O. On write 12253 flushes were not handled properly if the BIO retried. On read 12254 data was not being buffered properly and had various logic bugs. 12255 This also affects blocking I/O when the data being decoded is a 12256 certain size. 12257 12258 *Steve Henson* 12259 12260 * Various S/MIME bugfixes and compatibility changes: 12261 output correct application/pkcs7 MIME type if 12262 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12263 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12264 of files as .eml work). Correctly handle very long lines in MIME 12265 parser. 12266 12267 *Steve Henson* 12268 12269### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12270 12271 * Countermeasure against the Klima-Pokorny-Rosa extension of 12272 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12273 a protocol version number mismatch like a decryption error 12274 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12275 12276 *Bodo Moeller* 12277 12278 * Turn on RSA blinding by default in the default implementation 12279 to avoid a timing attack. Applications that don't want it can call 12280 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12281 They would be ill-advised to do so in most cases. 12282 12283 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12284 12285 * Change RSA blinding code so that it works when the PRNG is not 12286 seeded (in this case, the secret RSA exponent is abused as 12287 an unpredictable seed -- if it is not unpredictable, there 12288 is no point in blinding anyway). Make RSA blinding thread-safe 12289 by remembering the creator's thread ID in rsa->blinding and 12290 having all other threads use local one-time blinding factors 12291 (this requires more computation than sharing rsa->blinding, but 12292 avoids excessive locking; and if an RSA object is not shared 12293 between threads, blinding will still be very fast). 12294 12295 *Bodo Moeller* 12296 12297 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12298 ENGINE as defaults for all supported algorithms irrespective of 12299 the 'flags' parameter. 'flags' is now honoured, so applications 12300 should make sure they are passing it correctly. 12301 12302 *Geoff Thorpe* 12303 12304 * Target "mingw" now allows native Windows code to be generated in 12305 the Cygwin environment as well as with the MinGW compiler. 12306 12307 *Ulf Moeller* 12308 12309### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12310 12311 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12312 via timing by performing a MAC computation even if incorrect 12313 block cipher padding has been found. This is a countermeasure 12314 against active attacks where the attacker has to distinguish 12315 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12316 12317 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12318 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12319 Martin Vuagnoux (EPFL, Ilion)* 12320 12321 * Make the no-err option work as intended. The intention with no-err 12322 is not to have the whole error stack handling routines removed from 12323 libcrypto, it's only intended to remove all the function name and 12324 reason texts, thereby removing some of the footprint that may not 12325 be interesting if those errors aren't displayed anyway. 12326 12327 NOTE: it's still possible for any application or module to have its 12328 own set of error texts inserted. The routines are there, just not 12329 used by default when no-err is given. 12330 12331 *Richard Levitte* 12332 12333 * Add support for FreeBSD on IA64. 12334 12335 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12336 12337 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12338 Kerberos function mit_des_cbc_cksum(). Before this change, 12339 the value returned by DES_cbc_cksum() was like the one from 12340 mit_des_cbc_cksum(), except the bytes were swapped. 12341 12342 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12343 12344 * Allow an application to disable the automatic SSL chain building. 12345 Before this a rather primitive chain build was always performed in 12346 ssl3_output_cert_chain(): an application had no way to send the 12347 correct chain if the automatic operation produced an incorrect result. 12348 12349 Now the chain builder is disabled if either: 12350 12351 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12352 12353 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12354 12355 The reasoning behind this is that an application would not want the 12356 auto chain building to take place if extra chain certificates are 12357 present and it might also want a means of sending no additional 12358 certificates (for example the chain has two certificates and the 12359 root is omitted). 12360 12361 *Steve Henson* 12362 12363 * Add the possibility to build without the ENGINE framework. 12364 12365 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12366 12367 * Under Win32 gmtime() can return NULL: check return value in 12368 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12369 12370 *Steve Henson* 12371 12372 * DSA routines: under certain error conditions uninitialized BN objects 12373 could be freed. Solution: make sure initialization is performed early 12374 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12375 Nils Larsch <nla@trustcenter.de> via PR#459) 12376 12377 *Lutz Jaenicke* 12378 12379 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12380 checked on reconnect on the client side, therefore session resumption 12381 could still fail with a "ssl session id is different" error. This 12382 behaviour is masked when SSL_OP_ALL is used due to 12383 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12384 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12385 followup to PR #377. 12386 12387 *Lutz Jaenicke* 12388 12389 * IA-32 assembler support enhancements: unified ELF targets, support 12390 for SCO/Caldera platforms, fix for Cygwin shared build. 12391 12392 *Andy Polyakov* 12393 12394 * Add support for FreeBSD on sparc64. As a consequence, support for 12395 FreeBSD on non-x86 processors is separate from x86 processors on 12396 the config script, much like the NetBSD support. 12397 12398 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12399 12400### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12401 12402[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12403OpenSSL 0.9.7.] 12404 12405 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12406 code (06) was taken as the first octet of the session ID and the last 12407 octet was ignored consequently. As a result SSLv2 client side session 12408 caching could not have worked due to the session ID mismatch between 12409 client and server. 12410 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12411 PR #377. 12412 12413 *Lutz Jaenicke* 12414 12415 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12416 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12417 removed entirely. 12418 12419 *Richard Levitte* 12420 12421 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12422 seems that in spite of existing for more than a year, many application 12423 author have done nothing to provide the necessary callbacks, which 12424 means that this particular engine will not work properly anywhere. 12425 This is a very unfortunate situation which forces us, in the name 12426 of usability, to give the hw_ncipher.c a static lock, which is part 12427 of libcrypto. 12428 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12429 appear in 0.9.8 or later. We EXPECT application authors to have 12430 dealt properly with this when 0.9.8 is released (unless we actually 12431 make such changes in the libcrypto locking code that changes will 12432 have to be made anyway). 12433 12434 *Richard Levitte* 12435 12436 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12437 octets have been read, EOF or an error occurs. Without this change 12438 some truncated ASN1 structures will not produce an error. 12439 12440 *Steve Henson* 12441 12442 * Disable Heimdal support, since it hasn't been fully implemented. 12443 Still give the possibility to force the use of Heimdal, but with 12444 warnings and a request that patches get sent to openssl-dev. 12445 12446 *Richard Levitte* 12447 12448 * Add the VC-CE target, introduce the WINCE sysname, and add 12449 INSTALL.WCE and appropriate conditionals to make it build. 12450 12451 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12452 12453 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12454 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12455 edit numbers of the version. 12456 12457 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12458 12459 * Introduce safe string copy and catenation functions 12460 (BUF_strlcpy() and BUF_strlcat()). 12461 12462 *Ben Laurie (CHATS) and Richard Levitte* 12463 12464 * Avoid using fixed-size buffers for one-line DNs. 12465 12466 *Ben Laurie (CHATS)* 12467 12468 * Add BUF_MEM_grow_clean() to avoid information leakage when 12469 resizing buffers containing secrets, and use where appropriate. 12470 12471 *Ben Laurie (CHATS)* 12472 12473 * Avoid using fixed size buffers for configuration file location. 12474 12475 *Ben Laurie (CHATS)* 12476 12477 * Avoid filename truncation for various CA files. 12478 12479 *Ben Laurie (CHATS)* 12480 12481 * Use sizeof in preference to magic numbers. 12482 12483 *Ben Laurie (CHATS)* 12484 12485 * Avoid filename truncation in cert requests. 12486 12487 *Ben Laurie (CHATS)* 12488 12489 * Add assertions to check for (supposedly impossible) buffer 12490 overflows. 12491 12492 *Ben Laurie (CHATS)* 12493 12494 * Don't cache truncated DNS entries in the local cache (this could 12495 potentially lead to a spoofing attack). 12496 12497 *Ben Laurie (CHATS)* 12498 12499 * Fix various buffers to be large enough for hex/decimal 12500 representations in a platform independent manner. 12501 12502 *Ben Laurie (CHATS)* 12503 12504 * Add CRYPTO_realloc_clean() to avoid information leakage when 12505 resizing buffers containing secrets, and use where appropriate. 12506 12507 *Ben Laurie (CHATS)* 12508 12509 * Add BIO_indent() to avoid much slightly worrying code to do 12510 indents. 12511 12512 *Ben Laurie (CHATS)* 12513 12514 * Convert sprintf()/BIO_puts() to BIO_printf(). 12515 12516 *Ben Laurie (CHATS)* 12517 12518 * buffer_gets() could terminate with the buffer only half 12519 full. Fixed. 12520 12521 *Ben Laurie (CHATS)* 12522 12523 * Add assertions to prevent user-supplied crypto functions from 12524 overflowing internal buffers by having large block sizes, etc. 12525 12526 *Ben Laurie (CHATS)* 12527 12528 * New OPENSSL_assert() macro (similar to assert(), but enabled 12529 unconditionally). 12530 12531 *Ben Laurie (CHATS)* 12532 12533 * Eliminate unused copy of key in RC4. 12534 12535 *Ben Laurie (CHATS)* 12536 12537 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12538 12539 *Ben Laurie (CHATS)* 12540 12541 * Fix off-by-one error in EGD path. 12542 12543 *Ben Laurie (CHATS)* 12544 12545 * If RANDFILE path is too long, ignore instead of truncating. 12546 12547 *Ben Laurie (CHATS)* 12548 12549 * Eliminate unused and incorrectly sized X.509 structure 12550 CBCParameter. 12551 12552 *Ben Laurie (CHATS)* 12553 12554 * Eliminate unused and dangerous function knumber(). 12555 12556 *Ben Laurie (CHATS)* 12557 12558 * Eliminate unused and dangerous structure, KSSL_ERR. 12559 12560 *Ben Laurie (CHATS)* 12561 12562 * Protect against overlong session ID context length in an encoded 12563 session object. Since these are local, this does not appear to be 12564 exploitable. 12565 12566 *Ben Laurie (CHATS)* 12567 12568 * Change from security patch (see 0.9.6e below) that did not affect 12569 the 0.9.6 release series: 12570 12571 Remote buffer overflow in SSL3 protocol - an attacker could 12572 supply an oversized master key in Kerberos-enabled versions. 12573 ([CVE-2002-0657]) 12574 12575 *Ben Laurie (CHATS)* 12576 12577 * Change the SSL kerb5 codes to match RFC 2712. 12578 12579 *Richard Levitte* 12580 12581 * Make -nameopt work fully for req and add -reqopt switch. 12582 12583 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12584 12585 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12586 12587 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12588 12589 * Make sure tests can be performed even if the corresponding algorithms 12590 have been removed entirely. This was also the last step to make 12591 OpenSSL compilable with DJGPP under all reasonable conditions. 12592 12593 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12594 12595 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12596 to allow version independent disabling of normally unselected ciphers, 12597 which may be activated as a side-effect of selecting a single cipher. 12598 12599 (E.g., cipher list string "RSA" enables ciphersuites that are left 12600 out of "ALL" because they do not provide symmetric encryption. 12601 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12602 12603 *Lutz Jaenicke, Bodo Moeller* 12604 12605 * Add appropriate support for separate platform-dependent build 12606 directories. The recommended way to make a platform-dependent 12607 build directory is the following (tested on Linux), maybe with 12608 some local tweaks: 12609 12610 # Place yourself outside of the OpenSSL source tree. In 12611 # this example, the environment variable OPENSSL_SOURCE 12612 # is assumed to contain the absolute OpenSSL source directory. 12613 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12614 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12615 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12616 mkdir -p `dirname $F` 12617 ln -s $OPENSSL_SOURCE/$F $F 12618 done 12619 12620 To be absolutely sure not to disturb the source tree, a "make clean" 12621 is a good thing. If it isn't successful, don't worry about it, 12622 it probably means the source directory is very clean. 12623 12624 *Richard Levitte* 12625 12626 * Make sure any ENGINE control commands make local copies of string 12627 pointers passed to them whenever necessary. Otherwise it is possible 12628 the caller may have overwritten (or deallocated) the original string 12629 data when a later ENGINE operation tries to use the stored values. 12630 12631 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12632 12633 * Improve diagnostics in file reading and command-line digests. 12634 12635 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12636 12637 * Add AES modes CFB and OFB to the object database. Correct an 12638 error in AES-CFB decryption. 12639 12640 *Richard Levitte* 12641 12642 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12643 allows existing EVP_CIPHER_CTX structures to be reused after 12644 calling `EVP_*Final()`. This behaviour is used by encryption 12645 BIOs and some applications. This has the side effect that 12646 applications must explicitly clean up cipher contexts with 12647 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12648 12649 *Steve Henson* 12650 12651 * Check the values of dna and dnb in bn_mul_recursive before calling 12652 bn_mul_comba (a non zero value means the a or b arrays do not contain 12653 n2 elements) and fallback to bn_mul_normal if either is not zero. 12654 12655 *Steve Henson* 12656 12657 * Fix escaping of non-ASCII characters when using the -subj option 12658 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12659 12660 *Lutz Jaenicke* 12661 12662 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12663 form for "surname", serialNumber has no short form. 12664 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12665 therefore remove "mail" short name for "internet 7". 12666 The OID for unique identifiers in X509 certificates is 12667 x500UniqueIdentifier, not uniqueIdentifier. 12668 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12669 12670 *Lutz Jaenicke* 12671 12672 * Add an "init" command to the ENGINE config module and auto initialize 12673 ENGINEs. Without any "init" command the ENGINE will be initialized 12674 after all ctrl commands have been executed on it. If init=1 the 12675 ENGINE is initialized at that point (ctrls before that point are run 12676 on the uninitialized ENGINE and after on the initialized one). If 12677 init=0 then the ENGINE will not be initialized at all. 12678 12679 *Steve Henson* 12680 12681 * Fix the 'app_verify_callback' interface so that the user-defined 12682 argument is actually passed to the callback: In the 12683 SSL_CTX_set_cert_verify_callback() prototype, the callback 12684 declaration has been changed from 12685 int (*cb)() 12686 into 12687 int (*cb)(X509_STORE_CTX *,void *); 12688 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12689 i=s->ctx->app_verify_callback(&ctx) 12690 has been changed into 12691 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12692 12693 To update applications using SSL_CTX_set_cert_verify_callback(), 12694 a dummy argument can be added to their callback functions. 12695 12696 *D. K. Smetters <smetters@parc.xerox.com>* 12697 12698 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12699 12700 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12701 12702 * Add and OPENSSL_LOAD_CONF define which will cause 12703 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12704 This allows older applications to transparently support certain 12705 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12706 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12707 load the config file and OPENSSL_add_all_algorithms_conf() which will 12708 always load it have also been added. 12709 12710 *Steve Henson* 12711 12712 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12713 Adjust NIDs and EVP layer. 12714 12715 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12716 12717 * Config modules support in openssl utility. 12718 12719 Most commands now load modules from the config file, 12720 though in a few (such as version) this isn't done 12721 because it couldn't be used for anything. 12722 12723 In the case of ca and req the config file used is 12724 the same as the utility itself: that is the -config 12725 command line option can be used to specify an 12726 alternative file. 12727 12728 *Steve Henson* 12729 12730 * Move default behaviour from OPENSSL_config(). If appname is NULL 12731 use "openssl_conf" if filename is NULL use default openssl config file. 12732 12733 *Steve Henson* 12734 12735 * Add an argument to OPENSSL_config() to allow the use of an alternative 12736 config section name. Add a new flag to tolerate a missing config file 12737 and move code to CONF_modules_load_file(). 12738 12739 *Steve Henson* 12740 12741 * Support for crypto accelerator cards from Accelerated Encryption 12742 Processing, www.aep.ie. (Use engine 'aep') 12743 The support was copied from 0.9.6c [engine] and adapted/corrected 12744 to work with the new engine framework. 12745 12746 *AEP Inc. and Richard Levitte* 12747 12748 * Support for SureWare crypto accelerator cards from Baltimore 12749 Technologies. (Use engine 'sureware') 12750 The support was copied from 0.9.6c [engine] and adapted 12751 to work with the new engine framework. 12752 12753 *Richard Levitte* 12754 12755 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12756 make the newer ENGINE framework commands for the CHIL engine work. 12757 12758 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12759 12760 * Make it possible to produce shared libraries on ReliantUNIX. 12761 12762 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12763 12764 * Add the configuration target debug-linux-ppro. 12765 Make 'openssl rsa' use the general key loading routines 12766 implemented in `apps.c`, and make those routines able to 12767 handle the key format FORMAT_NETSCAPE and the variant 12768 FORMAT_IISSGC. 12769 12770 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12771 12772 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12773 12774 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12775 12776 * Add -keyform to rsautl, and document -engine. 12777 12778 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 12779 12780 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 12781 BIO_R_NO_SUCH_FILE error code rather than the generic 12782 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 12783 12784 *Ben Laurie* 12785 12786 * Add new functions 12787 ERR_peek_last_error 12788 ERR_peek_last_error_line 12789 ERR_peek_last_error_line_data. 12790 These are similar to 12791 ERR_peek_error 12792 ERR_peek_error_line 12793 ERR_peek_error_line_data, 12794 but report on the latest error recorded rather than the first one 12795 still in the error queue. 12796 12797 *Ben Laurie, Bodo Moeller* 12798 12799 * default_algorithms option in ENGINE config module. This allows things 12800 like: 12801 default_algorithms = ALL 12802 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 12803 12804 *Steve Henson* 12805 12806 * Preliminary ENGINE config module. 12807 12808 *Steve Henson* 12809 12810 * New experimental application configuration code. 12811 12812 *Steve Henson* 12813 12814 * Change the AES code to follow the same name structure as all other 12815 symmetric ciphers, and behave the same way. Move everything to 12816 the directory crypto/aes, thereby obsoleting crypto/rijndael. 12817 12818 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12819 12820 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 12821 12822 *Ben Laurie and Theo de Raadt* 12823 12824 * Add option to output public keys in req command. 12825 12826 *Massimiliano Pala madwolf@openca.org* 12827 12828 * Use wNAFs in EC_POINTs_mul() for improved efficiency 12829 (up to about 10% better than before for P-192 and P-224). 12830 12831 *Bodo Moeller* 12832 12833 * New functions/macros 12834 12835 SSL_CTX_set_msg_callback(ctx, cb) 12836 SSL_CTX_set_msg_callback_arg(ctx, arg) 12837 SSL_set_msg_callback(ssl, cb) 12838 SSL_set_msg_callback_arg(ssl, arg) 12839 12840 to request calling a callback function 12841 12842 void cb(int write_p, int version, int content_type, 12843 const void *buf, size_t len, SSL *ssl, void *arg) 12844 12845 whenever a protocol message has been completely received 12846 (write_p == 0) or sent (write_p == 1). Here 'version' is the 12847 protocol version according to which the SSL library interprets 12848 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 12849 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 12850 the content type as defined in the SSL 3.0/TLS 1.0 protocol 12851 specification (change_cipher_spec(20), alert(21), handshake(22)). 12852 'buf' and 'len' point to the actual message, 'ssl' to the 12853 SSL object, and 'arg' is the application-defined value set by 12854 SSL[_CTX]_set_msg_callback_arg(). 12855 12856 'openssl s_client' and 'openssl s_server' have new '-msg' options 12857 to enable a callback that displays all protocol messages. 12858 12859 *Bodo Moeller* 12860 12861 * Change the shared library support so shared libraries are built as 12862 soon as the corresponding static library is finished, and thereby get 12863 openssl and the test programs linked against the shared library. 12864 This still only happens when the keyword "shard" has been given to 12865 the configuration scripts. 12866 12867 NOTE: shared library support is still an experimental thing, and 12868 backward binary compatibility is still not guaranteed. 12869 12870 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 12871 12872 * Add support for Subject Information Access extension. 12873 12874 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12875 12876 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 12877 additional bytes when new memory had to be allocated, not just 12878 when reusing an existing buffer. 12879 12880 *Bodo Moeller* 12881 12882 * New command line and configuration option 'utf8' for the req command. 12883 This allows field values to be specified as UTF8 strings. 12884 12885 *Steve Henson* 12886 12887 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 12888 runs for the former and machine-readable output for the latter. 12889 12890 *Ben Laurie* 12891 12892 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 12893 of the e-mail address in the DN (i.e., it will go into a certificate 12894 extension only). The new configuration file option 'email_in_dn = no' 12895 has the same effect. 12896 12897 *Massimiliano Pala madwolf@openca.org* 12898 12899 * Change all functions with names starting with `des_` to be starting 12900 with `DES_` instead. Add wrappers that are compatible with libdes, 12901 but are named `_ossl_old_des_*`. Finally, add macros that map the 12902 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 12903 compatibility is desired. If OpenSSL 0.9.6c compatibility is 12904 desired, the `des_*` symbols will be mapped to `DES_*`, with one 12905 exception. 12906 12907 Since we provide two compatibility mappings, the user needs to 12908 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 12909 compatibility is desired. The default (i.e., when that macro 12910 isn't defined) is OpenSSL 0.9.6c compatibility. 12911 12912 There are also macros that enable and disable the support of old 12913 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 12914 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 12915 are defined, the default will apply: to support the old des routines. 12916 12917 In either case, one must include openssl/des.h to get the correct 12918 definitions. Do not try to just include openssl/des_old.h, that 12919 won't work. 12920 12921 NOTE: This is a major break of an old API into a new one. Software 12922 authors are encouraged to switch to the `DES_` style functions. Some 12923 time in the future, des_old.h and the libdes compatibility functions 12924 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 12925 default), and then completely removed. 12926 12927 *Richard Levitte* 12928 12929 * Test for certificates which contain unsupported critical extensions. 12930 If such a certificate is found during a verify operation it is 12931 rejected by default: this behaviour can be overridden by either 12932 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 12933 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 12934 X509_supported_extension() has also been added which returns 1 if a 12935 particular extension is supported. 12936 12937 *Steve Henson* 12938 12939 * Modify the behaviour of EVP cipher functions in similar way to digests 12940 to retain compatibility with existing code. 12941 12942 *Steve Henson* 12943 12944 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 12945 compatibility with existing code. In particular the 'ctx' parameter does 12946 not have to be to be initialized before the call to EVP_DigestInit() and 12947 it is tidied up after a call to EVP_DigestFinal(). New function 12948 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 12949 EVP_MD_CTX_copy() changed to not require the destination to be 12950 initialized valid and new function EVP_MD_CTX_copy_ex() added which 12951 requires the destination to be valid. 12952 12953 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 12954 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 12955 12956 *Steve Henson* 12957 12958 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 12959 so that complete 'Handshake' protocol structures are kept in memory 12960 instead of overwriting 'msg_type' and 'length' with 'body' data. 12961 12962 *Bodo Moeller* 12963 12964 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 12965 12966 *Massimo Santin via Richard Levitte* 12967 12968 * Major restructuring to the underlying ENGINE code. This includes 12969 reduction of linker bloat, separation of pure "ENGINE" manipulation 12970 (initialisation, etc) from functionality dealing with implementations 12971 of specific crypto interfaces. This change also introduces integrated 12972 support for symmetric ciphers and digest implementations - so ENGINEs 12973 can now accelerate these by providing EVP_CIPHER and EVP_MD 12974 implementations of their own. This is detailed in 12975 [crypto/engine/README.md](crypto/engine/README.md) 12976 as it couldn't be adequately described here. However, there are a few 12977 API changes worth noting - some RSA, DSA, DH, and RAND functions that 12978 were changed in the original introduction of ENGINE code have now 12979 reverted back - the hooking from this code to ENGINE is now a good 12980 deal more passive and at run-time, operations deal directly with 12981 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 12982 dereferencing through an ENGINE pointer any more. Also, the ENGINE 12983 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 12984 they were not being used by the framework as there is no concept of a 12985 BIGNUM_METHOD and they could not be generalised to the new 12986 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 12987 ENGINE_cpy() has been removed as it cannot be consistently defined in 12988 the new code. 12989 12990 *Geoff Thorpe* 12991 12992 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 12993 12994 *Steve Henson* 12995 12996 * Change mkdef.pl to sort symbols that get the same entry number, 12997 and make sure the automatically generated functions `ERR_load_*` 12998 become part of libeay.num as well. 12999 13000 *Richard Levitte* 13001 13002 * New function SSL_renegotiate_pending(). This returns true once 13003 renegotiation has been requested (either SSL_renegotiate() call 13004 or HelloRequest/ClientHello received from the peer) and becomes 13005 false once a handshake has been completed. 13006 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 13007 sends a HelloRequest, but does not ensure that a handshake takes 13008 place. SSL_renegotiate_pending() is useful for checking if the 13009 client has followed the request.) 13010 13011 *Bodo Moeller* 13012 13013 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 13014 By default, clients may request session resumption even during 13015 renegotiation (if session ID contexts permit); with this option, 13016 session resumption is possible only in the first handshake. 13017 13018 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 13019 more bits available for options that should not be part of 13020 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 13021 13022 *Bodo Moeller* 13023 13024 * Add some demos for certificate and certificate request creation. 13025 13026 *Steve Henson* 13027 13028 * Make maximum certificate chain size accepted from the peer application 13029 settable (`SSL*_get/set_max_cert_list()`), as proposed by 13030 "Douglas E. Engert" <deengert@anl.gov>. 13031 13032 *Lutz Jaenicke* 13033 13034 * Add support for shared libraries for Unixware-7 13035 (Boyd Lynn Gerber <gerberb@zenez.com>). 13036 13037 *Lutz Jaenicke* 13038 13039 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 13040 be done prior to destruction. Use this to unload error strings from 13041 ENGINEs that load their own error strings. NB: This adds two new API 13042 functions to "get" and "set" this destroy handler in an ENGINE. 13043 13044 *Geoff Thorpe* 13045 13046 * Alter all existing ENGINE implementations (except "openssl" and 13047 "openbsd") to dynamically instantiate their own error strings. This 13048 makes them more flexible to be built both as statically-linked ENGINEs 13049 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 13050 Also, add stub code to each that makes building them as self-contained 13051 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 13052 13053 *Geoff Thorpe* 13054 13055 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 13056 implementations into applications that are completely implemented in 13057 self-contained shared-libraries. The "dynamic" ENGINE exposes control 13058 commands that can be used to configure what shared-library to load and 13059 to control aspects of the way it is handled. Also, made an update to 13060 the [README-Engine.md](README-Engine.md) file 13061 that brings its information up-to-date and 13062 provides some information and instructions on the "dynamic" ENGINE 13063 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 13064 13065 *Geoff Thorpe* 13066 13067 * Make it possible to unload ranges of ERR strings with a new 13068 "ERR_unload_strings" function. 13069 13070 *Geoff Thorpe* 13071 13072 * Add a copy() function to EVP_MD. 13073 13074 *Ben Laurie* 13075 13076 * Make EVP_MD routines take a context pointer instead of just the 13077 md_data void pointer. 13078 13079 *Ben Laurie* 13080 13081 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 13082 that the digest can only process a single chunk of data 13083 (typically because it is provided by a piece of 13084 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 13085 is only going to provide a single chunk of data, and hence the 13086 framework needn't accumulate the data for oneshot drivers. 13087 13088 *Ben Laurie* 13089 13090 * As with "ERR", make it possible to replace the underlying "ex_data" 13091 functions. This change also alters the storage and management of global 13092 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 13093 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 13094 index counters. The API functions that use this state have been changed 13095 to take a "class_index" rather than pointers to the class's local STACK 13096 and counter, and there is now an API function to dynamically create new 13097 classes. This centralisation allows us to (a) plug a lot of the 13098 thread-safety problems that existed, and (b) makes it possible to clean 13099 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 13100 such data would previously have always leaked in application code and 13101 workarounds were in place to make the memory debugging turn a blind eye 13102 to it. Application code that doesn't use this new function will still 13103 leak as before, but their memory debugging output will announce it now 13104 rather than letting it slide. 13105 13106 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 13107 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 13108 has a return value to indicate success or failure. 13109 13110 *Geoff Thorpe* 13111 13112 * Make it possible to replace the underlying "ERR" functions such that the 13113 global state (2 LHASH tables and 2 locks) is only used by the "default" 13114 implementation. This change also adds two functions to "get" and "set" 13115 the implementation prior to it being automatically set the first time 13116 any other ERR function takes place. Ie. an application can call "get", 13117 pass the return value to a module it has just loaded, and that module 13118 can call its own "set" function using that value. This means the 13119 module's "ERR" operations will use (and modify) the error state in the 13120 application and not in its own statically linked copy of OpenSSL code. 13121 13122 *Geoff Thorpe* 13123 13124 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 13125 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 13126 the operation, and provides a more encapsulated way for external code 13127 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 13128 to use these functions rather than manually incrementing the counts. 13129 13130 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 13131 13132 *Geoff Thorpe* 13133 13134 * Add EVP test program. 13135 13136 *Ben Laurie* 13137 13138 * Add symmetric cipher support to ENGINE. Expect the API to change! 13139 13140 *Ben Laurie* 13141 13142 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 13143 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 13144 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 13145 These allow a CRL to be built without having to access X509_CRL fields 13146 directly. Modify 'ca' application to use new functions. 13147 13148 *Steve Henson* 13149 13150 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 13151 bug workarounds. Rollback attack detection is a security feature. 13152 The problem will only arise on OpenSSL servers when TLSv1 is not 13153 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13154 Software authors not wanting to support TLSv1 will have special reasons 13155 for their choice and can explicitly enable this option. 13156 13157 *Bodo Moeller, Lutz Jaenicke* 13158 13159 * Rationalise EVP so it can be extended: don't include a union of 13160 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13161 (similar to those existing for EVP_CIPHER_CTX). 13162 Usage example: 13163 13164 EVP_MD_CTX md; 13165 13166 EVP_MD_CTX_init(&md); /* new function call */ 13167 EVP_DigestInit(&md, EVP_sha1()); 13168 EVP_DigestUpdate(&md, in, len); 13169 EVP_DigestFinal(&md, out, NULL); 13170 EVP_MD_CTX_cleanup(&md); /* new function call */ 13171 13172 *Ben Laurie* 13173 13174 * Make DES key schedule conform to the usual scheme, as well as 13175 correcting its structure. This means that calls to DES functions 13176 now have to pass a pointer to a des_key_schedule instead of a 13177 plain des_key_schedule (which was actually always a pointer 13178 anyway): E.g., 13179 13180 des_key_schedule ks; 13181 13182 des_set_key_checked(..., &ks); 13183 des_ncbc_encrypt(..., &ks, ...); 13184 13185 (Note that a later change renames 'des_...' into 'DES_...'.) 13186 13187 *Ben Laurie* 13188 13189 * Initial reduction of linker bloat: the use of some functions, such as 13190 PEM causes large amounts of unused functions to be linked in due to 13191 poor organisation. For example pem_all.c contains every PEM function 13192 which has a knock on effect of linking in large amounts of (unused) 13193 ASN1 code. Grouping together similar functions and splitting unrelated 13194 functions prevents this. 13195 13196 *Steve Henson* 13197 13198 * Cleanup of EVP macros. 13199 13200 *Ben Laurie* 13201 13202 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13203 correct `_ecb suffix`. 13204 13205 *Ben Laurie* 13206 13207 * Add initial OCSP responder support to ocsp application. The 13208 revocation information is handled using the text based index 13209 use by the ca application. The responder can either handle 13210 requests generated internally, supplied in files (for example 13211 via a CGI script) or using an internal minimal server. 13212 13213 *Steve Henson* 13214 13215 * Add configuration choices to get zlib compression for TLS. 13216 13217 *Richard Levitte* 13218 13219 * Changes to Kerberos SSL for RFC 2712 compliance: 13220 1. Implemented real KerberosWrapper, instead of just using 13221 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13222 2. Implemented optional authenticator field of KerberosWrapper. 13223 13224 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13225 and authenticator structs; see crypto/krb5/. 13226 13227 Generalized Kerberos calls to support multiple Kerberos libraries. 13228 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13229 via Richard Levitte* 13230 13231 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13232 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13233 values for each of the key sizes rather than having just 13234 parameters (and 'speed' generating keys each time). 13235 13236 *Geoff Thorpe* 13237 13238 * Speed up EVP routines. 13239 Before: 13240crypt 13241pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13242s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13243s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13244s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13245crypt 13246s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13247s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13248s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13249 After: 13250crypt 13251s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13252crypt 13253s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13254 13255 *Ben Laurie* 13256 13257 * Added the OS2-EMX target. 13258 13259 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13260 13261 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13262 New functions to support `NCONF` routines in extension code. 13263 New function `CONF_set_nconf()` 13264 to allow functions which take an `NCONF` to also handle the old `LHASH` 13265 structure: this means that the old `CONF` compatible routines can be 13266 retained (in particular w.rt. extensions) without having to duplicate the 13267 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13268 13269 *Steve Henson* 13270 13271 * Enhance the general user interface with mechanisms for inner control 13272 and with possibilities to have yes/no kind of prompts. 13273 13274 *Richard Levitte* 13275 13276 * Change all calls to low-level digest routines in the library and 13277 applications to use EVP. Add missing calls to HMAC_cleanup() and 13278 don't assume HMAC_CTX can be copied using memcpy(). 13279 13280 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13281 13282 * Add the possibility to control engines through control names but with 13283 arbitrary arguments instead of just a string. 13284 Change the key loaders to take a UI_METHOD instead of a callback 13285 function pointer. NOTE: this breaks binary compatibility with earlier 13286 versions of OpenSSL [engine]. 13287 Adapt the nCipher code for these new conditions and add a card insertion 13288 callback. 13289 13290 *Richard Levitte* 13291 13292 * Enhance the general user interface with mechanisms to better support 13293 dialog box interfaces, application-defined prompts, the possibility 13294 to use defaults (for example default passwords from somewhere else) 13295 and interrupts/cancellations. 13296 13297 *Richard Levitte* 13298 13299 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13300 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13301 13302 *Steve Henson* 13303 13304 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13305 tidy up some unnecessarily weird code in 'sk_new()'). 13306 13307 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13308 13309 * Change the key loading routines for ENGINEs to use the same kind 13310 callback (pem_password_cb) as all other routines that need this 13311 kind of callback. 13312 13313 *Richard Levitte* 13314 13315 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13316 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13317 than this minimum value is recommended. 13318 13319 *Lutz Jaenicke* 13320 13321 * New random seeder for OpenVMS, using the system process statistics 13322 that are easily reachable. 13323 13324 *Richard Levitte* 13325 13326 * Windows apparently can't transparently handle global 13327 variables defined in DLLs. Initialisations such as: 13328 13329 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13330 13331 won't compile. This is used by the any applications that need to 13332 declare their own ASN1 modules. This was fixed by adding the option 13333 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13334 needed for static libraries under Win32. 13335 13336 *Steve Henson* 13337 13338 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13339 setting of purpose and trust fields. New X509_STORE trust and 13340 purpose functions and tidy up setting in other SSL functions. 13341 13342 *Steve Henson* 13343 13344 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13345 structure. These are inherited by X509_STORE_CTX when it is 13346 initialised. This allows various defaults to be set in the 13347 X509_STORE structure (such as flags for CRL checking and custom 13348 purpose or trust settings) for functions which only use X509_STORE_CTX 13349 internally such as S/MIME. 13350 13351 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13352 trust settings if they are not set in X509_STORE. This allows X509_STORE 13353 purposes and trust (in S/MIME for example) to override any set by default. 13354 13355 Add command line options for CRL checking to smime, s_client and s_server 13356 applications. 13357 13358 *Steve Henson* 13359 13360 * Initial CRL based revocation checking. If the CRL checking flag(s) 13361 are set then the CRL is looked up in the X509_STORE structure and 13362 its validity and signature checked, then if the certificate is found 13363 in the CRL the verify fails with a revoked error. 13364 13365 Various new CRL related callbacks added to X509_STORE_CTX structure. 13366 13367 Command line options added to 'verify' application to support this. 13368 13369 This needs some additional work, such as being able to handle multiple 13370 CRLs with different times, extension based lookup (rather than just 13371 by subject name) and ultimately more complete V2 CRL extension 13372 handling. 13373 13374 *Steve Henson* 13375 13376 * Add a general user interface API (crypto/ui/). This is designed 13377 to replace things like des_read_password and friends (backward 13378 compatibility functions using this new API are provided). 13379 The purpose is to remove prompting functions from the DES code 13380 section as well as provide for prompting through dialog boxes in 13381 a window system and the like. 13382 13383 *Richard Levitte* 13384 13385 * Add "ex_data" support to ENGINE so implementations can add state at a 13386 per-structure level rather than having to store it globally. 13387 13388 *Geoff* 13389 13390 * Make it possible for ENGINE structures to be copied when retrieved by 13391 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13392 This causes the "original" ENGINE structure to act like a template, 13393 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13394 operational state can be localised to each ENGINE structure, despite the 13395 fact they all share the same "methods". New ENGINE structures returned in 13396 this case have no functional references and the return value is the single 13397 structural reference. This matches the single structural reference returned 13398 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13399 ENGINE structure. 13400 13401 *Geoff* 13402 13403 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13404 needs to match any other type at all we need to manually clear the 13405 tag cache. 13406 13407 *Steve Henson* 13408 13409 * Changes to the "openssl engine" utility to include; 13410 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13411 about an ENGINE's available control commands. 13412 - executing control commands from command line arguments using the 13413 '-pre' and '-post' switches. '-post' is only used if '-t' is 13414 specified and the ENGINE is successfully initialised. The syntax for 13415 the individual commands are colon-separated, for example; 13416 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13417 13418 *Geoff* 13419 13420 * New dynamic control command support for ENGINEs. ENGINEs can now 13421 declare their own commands (numbers), names (strings), descriptions, 13422 and input types for run-time discovery by calling applications. A 13423 subset of these commands are implicitly classed as "executable" 13424 depending on their input type, and only these can be invoked through 13425 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13426 can be based on user input, config files, etc). The distinction is 13427 that "executable" commands cannot return anything other than a boolean 13428 result and can only support numeric or string input, whereas some 13429 discoverable commands may only be for direct use through 13430 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13431 pointers, or other custom uses. The "executable" commands are to 13432 support parameterisations of ENGINE behaviour that can be 13433 unambiguously defined by ENGINEs and used consistently across any 13434 OpenSSL-based application. Commands have been added to all the 13435 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13436 control over shared-library paths without source code alterations. 13437 13438 *Geoff* 13439 13440 * Changed all ENGINE implementations to dynamically allocate their 13441 ENGINEs rather than declaring them statically. Apart from this being 13442 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13443 this also allows the implementations to compile without using the 13444 internal engine_int.h header. 13445 13446 *Geoff* 13447 13448 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13449 'const' value. Any code that should be able to modify a RAND_METHOD 13450 should already have non-const pointers to it (ie. they should only 13451 modify their own ones). 13452 13453 *Geoff* 13454 13455 * Made a variety of little tweaks to the ENGINE code. 13456 - "atalla" and "ubsec" string definitions were moved from header files 13457 to C code. "nuron" string definitions were placed in variables 13458 rather than hard-coded - allowing parameterisation of these values 13459 later on via ctrl() commands. 13460 - Removed unused "#if 0"'d code. 13461 - Fixed engine list iteration code so it uses ENGINE_free() to release 13462 structural references. 13463 - Constified the RAND_METHOD element of ENGINE structures. 13464 - Constified various get/set functions as appropriate and added 13465 missing functions (including a catch-all ENGINE_cpy that duplicates 13466 all ENGINE values onto a new ENGINE except reference counts/state). 13467 - Removed NULL parameter checks in get/set functions. Setting a method 13468 or function to NULL is a way of cancelling out a previously set 13469 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13470 and doesn't justify the extra error symbols and code. 13471 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13472 flags from engine_int.h to engine.h. 13473 - Changed prototypes for ENGINE handler functions (init(), finish(), 13474 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13475 13476 *Geoff* 13477 13478 * Implement binary inversion algorithm for BN_mod_inverse in addition 13479 to the algorithm using long division. The binary algorithm can be 13480 used only if the modulus is odd. On 32-bit systems, it is faster 13481 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13482 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13483 up to 450 bits. In 64-bit environments, the binary algorithm 13484 appears to be advantageous for much longer moduli; here we use it 13485 for moduli up to 2048 bits. 13486 13487 *Bodo Moeller* 13488 13489 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13490 could not support the combine flag in choice fields. 13491 13492 *Steve Henson* 13493 13494 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13495 extensions from a certificate request to the certificate. 13496 13497 *Steve Henson* 13498 13499 * Allow multiple 'certopt' and 'nameopt' options to be separated 13500 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13501 file: this allows the display of the certificate about to be 13502 signed to be customised, to allow certain fields to be included 13503 or excluded and extension details. The old system didn't display 13504 multicharacter strings properly, omitted fields not in the policy 13505 and couldn't display additional details such as extensions. 13506 13507 *Steve Henson* 13508 13509 * Function EC_POINTs_mul for multiple scalar multiplication 13510 of an arbitrary number of elliptic curve points 13511 \sum scalars[i]*points[i], 13512 optionally including the generator defined for the EC_GROUP: 13513 scalar*generator + \sum scalars[i]*points[i]. 13514 13515 EC_POINT_mul is a simple wrapper function for the typical case 13516 that the point list has just one item (besides the optional 13517 generator). 13518 13519 *Bodo Moeller* 13520 13521 * First EC_METHODs for curves over GF(p): 13522 13523 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13524 operations and provides various method functions that can also 13525 operate with faster implementations of modular arithmetic. 13526 13527 EC_GFp_mont_method() reuses most functions that are part of 13528 EC_GFp_simple_method, but uses Montgomery arithmetic. 13529 13530 *Bodo Moeller; point addition and point doubling 13531 implementation directly derived from source code provided by 13532 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13533 13534 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13535 crypto/ec/ec_lib.c): 13536 13537 Curves are EC_GROUP objects (with an optional group generator) 13538 based on EC_METHODs that are built into the library. 13539 13540 Points are EC_POINT objects based on EC_GROUP objects. 13541 13542 Most of the framework would be able to handle curves over arbitrary 13543 finite fields, but as there are no obvious types for fields other 13544 than GF(p), some functions are limited to that for now. 13545 13546 *Bodo Moeller* 13547 13548 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13549 that the file contains a complete HTTP response. 13550 13551 *Richard Levitte* 13552 13553 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13554 change the def and num file printf format specifier from "%-40sXXX" 13555 to "%-39s XXX". The latter will always guarantee a space after the 13556 field while the former will cause them to run together if the field 13557 is 40 of more characters long. 13558 13559 *Steve Henson* 13560 13561 * Constify the cipher and digest 'method' functions and structures 13562 and modify related functions to take constant EVP_MD and EVP_CIPHER 13563 pointers. 13564 13565 *Steve Henson* 13566 13567 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13568 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13569 13570 *Bodo Moeller* 13571 13572 * Modify `EVP_Digest*()` routines so they now return values. Although the 13573 internal software routines can never fail additional hardware versions 13574 might. 13575 13576 *Steve Henson* 13577 13578 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13579 13580 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13581 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13582 13583 ASN1 error codes 13584 ERR_R_NESTED_ASN1_ERROR 13585 ... 13586 ERR_R_MISSING_ASN1_EOS 13587 were 4 .. 9, conflicting with 13588 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13589 ... 13590 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13591 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13592 13593 Add new error code 'ERR_R_INTERNAL_ERROR'. 13594 13595 *Bodo Moeller* 13596 13597 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13598 suffices. 13599 13600 *Bodo Moeller* 13601 13602 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13603 sets the subject name for a new request or supersedes the 13604 subject name in a given request. Formats that can be parsed are 13605 'CN=Some Name, OU=myOU, C=IT' 13606 and 13607 'CN=Some Name/OU=myOU/C=IT'. 13608 13609 Add options '-batch' and '-verbose' to 'openssl req'. 13610 13611 *Massimiliano Pala <madwolf@hackmasters.net>* 13612 13613 * Introduce the possibility to access global variables through 13614 functions on platform were that's the best way to handle exporting 13615 global variables in shared libraries. To enable this functionality, 13616 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13617 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13618 is normally done by Configure or something similar). 13619 13620 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13621 in the source file (foo.c) like this: 13622 13623 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13624 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13625 13626 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13627 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13628 13629 OPENSSL_DECLARE_GLOBAL(int,foo); 13630 #define foo OPENSSL_GLOBAL_REF(foo) 13631 OPENSSL_DECLARE_GLOBAL(double,bar); 13632 #define bar OPENSSL_GLOBAL_REF(bar) 13633 13634 The #defines are very important, and therefore so is including the 13635 header file everywhere where the defined globals are used. 13636 13637 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13638 of ASN.1 items, but that structure is a bit different. 13639 13640 The largest change is in util/mkdef.pl which has been enhanced with 13641 better and easier to understand logic to choose which symbols should 13642 go into the Windows .def files as well as a number of fixes and code 13643 cleanup (among others, algorithm keywords are now sorted 13644 lexicographically to avoid constant rewrites). 13645 13646 *Richard Levitte* 13647 13648 * In BN_div() keep a copy of the sign of 'num' before writing the 13649 result to 'rm' because if rm==num the value will be overwritten 13650 and produce the wrong result if 'num' is negative: this caused 13651 problems with BN_mod() and BN_nnmod(). 13652 13653 *Steve Henson* 13654 13655 * Function OCSP_request_verify(). This checks the signature on an 13656 OCSP request and verifies the signer certificate. The signer 13657 certificate is just checked for a generic purpose and OCSP request 13658 trust settings. 13659 13660 *Steve Henson* 13661 13662 * Add OCSP_check_validity() function to check the validity of OCSP 13663 responses. OCSP responses are prepared in real time and may only 13664 be a few seconds old. Simply checking that the current time lies 13665 between thisUpdate and nextUpdate max reject otherwise valid responses 13666 caused by either OCSP responder or client clock inaccuracy. Instead 13667 we allow thisUpdate and nextUpdate to fall within a certain period of 13668 the current time. The age of the response can also optionally be 13669 checked. Two new options -validity_period and -status_age added to 13670 ocsp utility. 13671 13672 *Steve Henson* 13673 13674 * If signature or public key algorithm is unrecognized print out its 13675 OID rather that just UNKNOWN. 13676 13677 *Steve Henson* 13678 13679 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13680 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13681 ID to be generated from the issuer certificate alone which can then be 13682 passed to OCSP_id_issuer_cmp(). 13683 13684 *Steve Henson* 13685 13686 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13687 ASN1 modules to export functions returning ASN1_ITEM pointers 13688 instead of the ASN1_ITEM structures themselves. This adds several 13689 new macros which allow the underlying ASN1 function/structure to 13690 be accessed transparently. As a result code should not use ASN1_ITEM 13691 references directly (such as &X509_it) but instead use the relevant 13692 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13693 use of the new ASN1 code on platforms where exporting structures 13694 is problematical (for example in shared libraries) but exporting 13695 functions returning pointers to structures is not. 13696 13697 *Steve Henson* 13698 13699 * Add support for overriding the generation of SSL/TLS session IDs. 13700 These callbacks can be registered either in an SSL_CTX or per SSL. 13701 The purpose of this is to allow applications to control, if they wish, 13702 the arbitrary values chosen for use as session IDs, particularly as it 13703 can be useful for session caching in multiple-server environments. A 13704 command-line switch for testing this (and any client code that wishes 13705 to use such a feature) has been added to "s_server". 13706 13707 *Geoff Thorpe, Lutz Jaenicke* 13708 13709 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13710 of the form `#if defined(...) || defined(...) || ...` and 13711 `#if !defined(...) && !defined(...) && ...`. This also avoids 13712 the growing number of special cases it was previously handling. 13713 13714 *Richard Levitte* 13715 13716 * Make all configuration macros available for application by making 13717 sure they are available in opensslconf.h, by giving them names starting 13718 with `OPENSSL_` to avoid conflicts with other packages and by making 13719 sure e_os2.h will cover all platform-specific cases together with 13720 opensslconf.h. 13721 Additionally, it is now possible to define configuration/platform- 13722 specific names (called "system identities"). In the C code, these 13723 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13724 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13725 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13726 what is available. 13727 13728 *Richard Levitte* 13729 13730 * New option -set_serial to 'req' and 'x509' this allows the serial 13731 number to use to be specified on the command line. Previously self 13732 signed certificates were hard coded with serial number 0 and the 13733 CA options of 'x509' had to use a serial number in a file which was 13734 auto incremented. 13735 13736 *Steve Henson* 13737 13738 * New options to 'ca' utility to support V2 CRL entry extensions. 13739 Currently CRL reason, invalidity date and hold instruction are 13740 supported. Add new CRL extensions to V3 code and some new objects. 13741 13742 *Steve Henson* 13743 13744 * New function EVP_CIPHER_CTX_set_padding() this is used to 13745 disable standard block padding (aka PKCS#5 padding) in the EVP 13746 API, which was previously mandatory. This means that the data is 13747 not padded in any way and so the total length much be a multiple 13748 of the block size, otherwise an error occurs. 13749 13750 *Steve Henson* 13751 13752 * Initial (incomplete) OCSP SSL support. 13753 13754 *Steve Henson* 13755 13756 * New function OCSP_parse_url(). This splits up a URL into its host, 13757 port and path components: primarily to parse OCSP URLs. New -url 13758 option to ocsp utility. 13759 13760 *Steve Henson* 13761 13762 * New nonce behavior. The return value of OCSP_check_nonce() now 13763 reflects the various checks performed. Applications can decide 13764 whether to tolerate certain situations such as an absent nonce 13765 in a response when one was present in a request: the ocsp application 13766 just prints out a warning. New function OCSP_add1_basic_nonce() 13767 this is to allow responders to include a nonce in a response even if 13768 the request is nonce-less. 13769 13770 *Steve Henson* 13771 13772 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13773 skipped when using openssl x509 multiple times on a single input file, 13774 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13775 13776 *Bodo Moeller* 13777 13778 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 13779 set string type: to handle setting ASN1_TIME structures. Fix ca 13780 utility to correctly initialize revocation date of CRLs. 13781 13782 *Steve Henson* 13783 13784 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 13785 the clients preferred ciphersuites and rather use its own preferences. 13786 Should help to work around M$ SGC (Server Gated Cryptography) bug in 13787 Internet Explorer by ensuring unchanged hash method during stepup. 13788 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 13789 13790 *Lutz Jaenicke* 13791 13792 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 13793 to aes and add a new 'exist' option to print out symbols that don't 13794 appear to exist. 13795 13796 *Steve Henson* 13797 13798 * Additional options to ocsp utility to allow flags to be set and 13799 additional certificates supplied. 13800 13801 *Steve Henson* 13802 13803 * Add the option -VAfile to 'openssl ocsp', so the user can give the 13804 OCSP client a number of certificate to only verify the response 13805 signature against. 13806 13807 *Richard Levitte* 13808 13809 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 13810 handle the new API. Currently only ECB, CBC modes supported. Add new 13811 AES OIDs. 13812 13813 Add TLS AES ciphersuites as described in RFC3268, "Advanced 13814 Encryption Standard (AES) Ciphersuites for Transport Layer 13815 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 13816 not enabled by default and were not part of the "ALL" ciphersuite 13817 alias because they were not yet official; they could be 13818 explicitly requested by specifying the "AESdraft" ciphersuite 13819 group alias. In the final release of OpenSSL 0.9.7, the group 13820 alias is called "AES" and is part of "ALL".) 13821 13822 *Ben Laurie, Steve Henson, Bodo Moeller* 13823 13824 * New function OCSP_copy_nonce() to copy nonce value (if present) from 13825 request to response. 13826 13827 *Steve Henson* 13828 13829 * Functions for OCSP responders. OCSP_request_onereq_count(), 13830 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 13831 extract information from a certificate request. OCSP_response_create() 13832 creates a response and optionally adds a basic response structure. 13833 OCSP_basic_add1_status() adds a complete single response to a basic 13834 response and returns the OCSP_SINGLERESP structure just added (to allow 13835 extensions to be included for example). OCSP_basic_add1_cert() adds a 13836 certificate to a basic response and OCSP_basic_sign() signs a basic 13837 response with various flags. New helper functions ASN1_TIME_check() 13838 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 13839 (converts ASN1_TIME to GeneralizedTime). 13840 13841 *Steve Henson* 13842 13843 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 13844 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 13845 structure from a certificate. X509_pubkey_digest() digests the public_key 13846 contents: this is used in various key identifiers. 13847 13848 *Steve Henson* 13849 13850 * Make sk_sort() tolerate a NULL argument. 13851 13852 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 13853 13854 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 13855 passed by the function are trusted implicitly. If any of them signed the 13856 response then it is assumed to be valid and is not verified. 13857 13858 *Steve Henson* 13859 13860 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 13861 to data. This was previously part of the PKCS7 ASN1 code. This 13862 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 13863 *Steve Henson, reported by Kenneth R. Robinette 13864 <support@securenetterm.com>* 13865 13866 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 13867 routines: without these tracing memory leaks is very painful. 13868 Fix leaks in PKCS12 and PKCS7 routines. 13869 13870 *Steve Henson* 13871 13872 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 13873 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 13874 effectively meant GeneralizedTime would never be used. Now it 13875 is initialised to -1 but X509_time_adj() now has to check the value 13876 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 13877 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 13878 *Steve Henson, reported by Kenneth R. Robinette 13879 <support@securenetterm.com>* 13880 13881 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 13882 result in a zero length in the ASN1_INTEGER structure which was 13883 not consistent with the structure when d2i_ASN1_INTEGER() was used 13884 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 13885 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 13886 where it did not print out a minus for negative ASN1_INTEGER. 13887 13888 *Steve Henson* 13889 13890 * Add summary printout to ocsp utility. The various functions which 13891 convert status values to strings have been renamed to: 13892 OCSP_response_status_str(), OCSP_cert_status_str() and 13893 OCSP_crl_reason_str() and are no longer static. New options 13894 to verify nonce values and to disable verification. OCSP response 13895 printout format cleaned up. 13896 13897 *Steve Henson* 13898 13899 * Add additional OCSP certificate checks. These are those specified 13900 in RFC2560. This consists of two separate checks: the CA of the 13901 certificate being checked must either be the OCSP signer certificate 13902 or the issuer of the OCSP signer certificate. In the latter case the 13903 OCSP signer certificate must contain the OCSP signing extended key 13904 usage. This check is performed by attempting to match the OCSP 13905 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 13906 in the OCSP_CERTID structures of the response. 13907 13908 *Steve Henson* 13909 13910 * Initial OCSP certificate verification added to OCSP_basic_verify() 13911 and related routines. This uses the standard OpenSSL certificate 13912 verify routines to perform initial checks (just CA validity) and 13913 to obtain the certificate chain. Then additional checks will be 13914 performed on the chain. Currently the root CA is checked to see 13915 if it is explicitly trusted for OCSP signing. This is used to set 13916 a root CA as a global signing root: that is any certificate that 13917 chains to that CA is an acceptable OCSP signing certificate. 13918 13919 *Steve Henson* 13920 13921 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 13922 extensions from a separate configuration file. 13923 As when reading extensions from the main configuration file, 13924 the '-extensions ...' option may be used for specifying the 13925 section to use. 13926 13927 *Massimiliano Pala <madwolf@comune.modena.it>* 13928 13929 * New OCSP utility. Allows OCSP requests to be generated or 13930 read. The request can be sent to a responder and the output 13931 parsed, outputted or printed in text form. Not complete yet: 13932 still needs to check the OCSP response validity. 13933 13934 *Steve Henson* 13935 13936 * New subcommands for 'openssl ca': 13937 `openssl ca -status <serial>` prints the status of the cert with 13938 the given serial number (according to the index file). 13939 `openssl ca -updatedb` updates the expiry status of certificates 13940 in the index file. 13941 13942 *Massimiliano Pala <madwolf@comune.modena.it>* 13943 13944 * New '-newreq-nodes' command option to CA.pl. This is like 13945 '-newreq', but calls 'openssl req' with the '-nodes' option 13946 so that the resulting key is not encrypted. 13947 13948 *Damien Miller <djm@mindrot.org>* 13949 13950 * New configuration for the GNU Hurd. 13951 13952 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 13953 13954 * Initial code to implement OCSP basic response verify. This 13955 is currently incomplete. Currently just finds the signer's 13956 certificate and verifies the signature on the response. 13957 13958 *Steve Henson* 13959 13960 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 13961 value of OPENSSLDIR. This is available via the new '-d' option 13962 to 'openssl version', and is also included in 'openssl version -a'. 13963 13964 *Bodo Moeller* 13965 13966 * Allowing defining memory allocation callbacks that will be given 13967 file name and line number information in additional arguments 13968 (a `const char*` and an int). The basic functionality remains, as 13969 well as the original possibility to just replace malloc(), 13970 realloc() and free() by functions that do not know about these 13971 additional arguments. To register and find out the current 13972 settings for extended allocation functions, the following 13973 functions are provided: 13974 13975 CRYPTO_set_mem_ex_functions 13976 CRYPTO_set_locked_mem_ex_functions 13977 CRYPTO_get_mem_ex_functions 13978 CRYPTO_get_locked_mem_ex_functions 13979 13980 These work the same way as CRYPTO_set_mem_functions and friends. 13981 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 13982 extended allocation function is enabled. 13983 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 13984 a conventional allocation function is enabled. 13985 13986 *Richard Levitte, Bodo Moeller* 13987 13988 * Finish off removing the remaining LHASH function pointer casts. 13989 There should no longer be any prototype-casting required when using 13990 the LHASH abstraction, and any casts that remain are "bugs". See 13991 the callback types and macros at the head of lhash.h for details 13992 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 13993 13994 *Geoff Thorpe* 13995 13996 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 13997 If /dev/[u]random devices are not available or do not return enough 13998 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 13999 be queried. 14000 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 14001 /etc/entropy will be queried once each in this sequence, querying stops 14002 when enough entropy was collected without querying more sockets. 14003 14004 *Lutz Jaenicke* 14005 14006 * Change the Unix RAND_poll() variant to be able to poll several 14007 random devices, as specified by DEVRANDOM, until a sufficient amount 14008 of data has been collected. We spend at most 10 ms on each file 14009 (select timeout) and read in non-blocking mode. DEVRANDOM now 14010 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 14011 (previously it was just the string "/dev/urandom"), so on typical 14012 platforms the 10 ms delay will never occur. 14013 Also separate out the Unix variant to its own file, rand_unix.c. 14014 For VMS, there's a currently-empty rand_vms.c. 14015 14016 *Richard Levitte* 14017 14018 * Move OCSP client related routines to ocsp_cl.c. These 14019 provide utility functions which an application needing 14020 to issue a request to an OCSP responder and analyse the 14021 response will typically need: as opposed to those which an 14022 OCSP responder itself would need which will be added later. 14023 14024 OCSP_request_sign() signs an OCSP request with an API similar 14025 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 14026 response. OCSP_response_get1_basic() extracts basic response 14027 from response. OCSP_resp_find_status(): finds and extracts status 14028 information from an OCSP_CERTID structure (which will be created 14029 when the request structure is built). These are built from lower 14030 level functions which work on OCSP_SINGLERESP structures but 14031 won't normally be used unless the application wishes to examine 14032 extensions in the OCSP response for example. 14033 14034 Replace nonce routines with a pair of functions. 14035 OCSP_request_add1_nonce() adds a nonce value and optionally 14036 generates a random value. OCSP_check_nonce() checks the 14037 validity of the nonce in an OCSP response. 14038 14039 *Steve Henson* 14040 14041 * Change function OCSP_request_add() to OCSP_request_add0_id(). 14042 This doesn't copy the supplied OCSP_CERTID and avoids the 14043 need to free up the newly created id. Change return type 14044 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 14045 This can then be used to add extensions to the request. 14046 Deleted OCSP_request_new(), since most of its functionality 14047 is now in OCSP_REQUEST_new() (and the case insensitive name 14048 clash) apart from the ability to set the request name which 14049 will be added elsewhere. 14050 14051 *Steve Henson* 14052 14053 * Update OCSP API. Remove obsolete extensions argument from 14054 various functions. Extensions are now handled using the new 14055 OCSP extension code. New simple OCSP HTTP function which 14056 can be used to send requests and parse the response. 14057 14058 *Steve Henson* 14059 14060 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 14061 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 14062 uses the special reorder version of SET OF to sort the attributes 14063 and reorder them to match the encoded order. This resolves a long 14064 standing problem: a verify on a PKCS7 structure just after signing 14065 it used to fail because the attribute order did not match the 14066 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 14067 it uses the received order. This is necessary to tolerate some broken 14068 software that does not order SET OF. This is handled by encoding 14069 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 14070 to produce the required SET OF. 14071 14072 *Steve Henson* 14073 14074 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 14075 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 14076 files to get correct declarations of the ASN.1 item variables. 14077 14078 *Richard Levitte* 14079 14080 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 14081 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 14082 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 14083 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 14084 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 14085 ASN1_ITEM and no wrapper functions. 14086 14087 *Steve Henson* 14088 14089 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 14090 replace the old function pointer based I/O routines. Change most of 14091 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 14092 14093 *Steve Henson* 14094 14095 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 14096 lines, recognize more "algorithms" that can be deselected, and make 14097 it complain about algorithm deselection that isn't recognised. 14098 14099 *Richard Levitte* 14100 14101 * New ASN1 functions to handle dup, sign, verify, digest, pack and 14102 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 14103 to use new functions. Add NO_ASN1_OLD which can be set to remove 14104 some old style ASN1 functions: this can be used to determine if old 14105 code will still work when these eventually go away. 14106 14107 *Steve Henson* 14108 14109 * New extension functions for OCSP structures, these follow the 14110 same conventions as certificates and CRLs. 14111 14112 *Steve Henson* 14113 14114 * New function X509V3_add1_i2d(). This automatically encodes and 14115 adds an extension. Its behaviour can be customised with various 14116 flags to append, replace or delete. Various wrappers added for 14117 certificates and CRLs. 14118 14119 *Steve Henson* 14120 14121 * Fix to avoid calling the underlying ASN1 print routine when 14122 an extension cannot be parsed. Correct a typo in the 14123 OCSP_SERVICELOC extension. Tidy up print OCSP format. 14124 14125 *Steve Henson* 14126 14127 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 14128 entries for variables. 14129 14130 *Steve Henson* 14131 14132 * Add functionality to `apps/openssl.c` for detecting locking 14133 problems: As the program is single-threaded, all we have 14134 to do is register a locking callback using an array for 14135 storing which locks are currently held by the program. 14136 14137 *Bodo Moeller* 14138 14139 * Use a lock around the call to CRYPTO_get_ex_new_index() in 14140 SSL_get_ex_data_X509_STORE_idx(), which is used in 14141 ssl_verify_cert_chain() and thus can be called at any time 14142 during TLS/SSL handshakes so that thread-safety is essential. 14143 Unfortunately, the ex_data design is not at all suited 14144 for multi-threaded use, so it probably should be abolished. 14145 14146 *Bodo Moeller* 14147 14148 * Added Broadcom "ubsec" ENGINE to OpenSSL. 14149 14150 *Broadcom, tweaked and integrated by Geoff Thorpe* 14151 14152 * Move common extension printing code to new function 14153 X509V3_print_extensions(). Reorganise OCSP print routines and 14154 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14155 14156 *Steve Henson* 14157 14158 * New function X509_signature_print() to remove duplication in some 14159 print routines. 14160 14161 *Steve Henson* 14162 14163 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14164 set (this was treated exactly the same as SET OF previously). This 14165 is used to reorder the STACK representing the structure to match the 14166 encoding. This will be used to get round a problem where a PKCS7 14167 structure which was signed could not be verified because the STACK 14168 order did not reflect the encoded order. 14169 14170 *Steve Henson* 14171 14172 * Reimplement the OCSP ASN1 module using the new code. 14173 14174 *Steve Henson* 14175 14176 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14177 for its ASN1 operations. The old style function pointers still exist 14178 for now but they will eventually go away. 14179 14180 *Steve Henson* 14181 14182 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14183 completely replaces the old ASN1 functionality with a table driven 14184 encoder and decoder which interprets an ASN1_ITEM structure describing 14185 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14186 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14187 has also been converted to the new form. 14188 14189 *Steve Henson* 14190 14191 * Change BN_mod_exp_recp so that negative moduli are tolerated 14192 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14193 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14194 for negative moduli. 14195 14196 *Bodo Moeller* 14197 14198 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14199 of not touching the result's sign bit. 14200 14201 *Bodo Moeller* 14202 14203 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14204 set. 14205 14206 *Bodo Moeller* 14207 14208 * Changed the LHASH code to use prototypes for callbacks, and created 14209 macros to declare and implement thin (optionally static) functions 14210 that provide type-safety and avoid function pointer casting for the 14211 type-specific callbacks. 14212 14213 *Geoff Thorpe* 14214 14215 * Added Kerberos Cipher Suites to be used with TLS, as written in 14216 RFC 2712. 14217 *Veers Staats <staatsvr@asc.hpc.mil>, 14218 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14219 14220 * Reformat the FAQ so the different questions and answers can be divided 14221 in sections depending on the subject. 14222 14223 *Richard Levitte* 14224 14225 * Have the zlib compression code load ZLIB.DLL dynamically under 14226 Windows. 14227 14228 *Richard Levitte* 14229 14230 * New function BN_mod_sqrt for computing square roots modulo a prime 14231 (using the probabilistic Tonelli-Shanks algorithm unless 14232 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14233 be handled deterministically). 14234 14235 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14236 14237 * Make BN_mod_inverse faster by explicitly handling small quotients 14238 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14239 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14240 14241 *Bodo Moeller* 14242 14243 * New function BN_kronecker. 14244 14245 *Bodo Moeller* 14246 14247 * Fix BN_gcd so that it works on negative inputs; the result is 14248 positive unless both parameters are zero. 14249 Previously something reasonably close to an infinite loop was 14250 possible because numbers could be growing instead of shrinking 14251 in the implementation of Euclid's algorithm. 14252 14253 *Bodo Moeller* 14254 14255 * Fix BN_is_word() and BN_is_one() macros to take into account the 14256 sign of the number in question. 14257 14258 Fix BN_is_word(a,w) to work correctly for w == 0. 14259 14260 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14261 because its test if the absolute value of 'a' equals 'w'. 14262 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14263 it exists mostly for use in the implementations of BN_is_zero(), 14264 BN_is_one(), and BN_is_word(). 14265 14266 *Bodo Moeller* 14267 14268 * New function BN_swap. 14269 14270 *Bodo Moeller* 14271 14272 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14273 the exponentiation functions are more likely to produce reasonable 14274 results on negative inputs. 14275 14276 *Bodo Moeller* 14277 14278 * Change BN_mod_mul so that the result is always non-negative. 14279 Previously, it could be negative if one of the factors was negative; 14280 I don't think anyone really wanted that behaviour. 14281 14282 *Bodo Moeller* 14283 14284 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14285 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14286 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14287 and add new functions: 14288 14289 BN_nnmod 14290 BN_mod_sqr 14291 BN_mod_add 14292 BN_mod_add_quick 14293 BN_mod_sub 14294 BN_mod_sub_quick 14295 BN_mod_lshift1 14296 BN_mod_lshift1_quick 14297 BN_mod_lshift 14298 BN_mod_lshift_quick 14299 14300 These functions always generate non-negative results. 14301 14302 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14303 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14304 14305 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14306 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14307 be reduced modulo `m`. 14308 14309 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14310 14311<!-- 14312 The following entry accidentally appeared in the CHANGES file 14313 distributed with OpenSSL 0.9.7. The modifications described in 14314 it do *not* apply to OpenSSL 0.9.7. 14315 14316 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14317 was actually never needed) and in BN_mul(). The removal in BN_mul() 14318 required a small change in bn_mul_part_recursive() and the addition 14319 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14320 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14321 bn_sub_words() and bn_add_words() except they take arrays with 14322 differing sizes. 14323 14324 *Richard Levitte* 14325--> 14326 14327 * In 'openssl passwd', verify passwords read from the terminal 14328 unless the '-salt' option is used (which usually means that 14329 verification would just waste user's time since the resulting 14330 hash is going to be compared with some given password hash) 14331 or the new '-noverify' option is used. 14332 14333 This is an incompatible change, but it does not affect 14334 non-interactive use of 'openssl passwd' (passwords on the command 14335 line, '-stdin' option, '-in ...' option) and thus should not 14336 cause any problems. 14337 14338 *Bodo Moeller* 14339 14340 * Remove all references to RSAref, since there's no more need for it. 14341 14342 *Richard Levitte* 14343 14344 * Make DSO load along a path given through an environment variable 14345 (SHLIB_PATH) with shl_load(). 14346 14347 *Richard Levitte* 14348 14349 * Constify the ENGINE code as a result of BIGNUM constification. 14350 Also constify the RSA code and most things related to it. In a 14351 few places, most notable in the depth of the ASN.1 code, ugly 14352 casts back to non-const were required (to be solved at a later 14353 time) 14354 14355 *Richard Levitte* 14356 14357 * Make it so the openssl application has all engines loaded by default. 14358 14359 *Richard Levitte* 14360 14361 * Constify the BIGNUM routines a little more. 14362 14363 *Richard Levitte* 14364 14365 * Add the following functions: 14366 14367 ENGINE_load_cswift() 14368 ENGINE_load_chil() 14369 ENGINE_load_atalla() 14370 ENGINE_load_nuron() 14371 ENGINE_load_builtin_engines() 14372 14373 That way, an application can itself choose if external engines that 14374 are built-in in OpenSSL shall ever be used or not. The benefit is 14375 that applications won't have to be linked with libdl or other dso 14376 libraries unless it's really needed. 14377 14378 Changed 'openssl engine' to load all engines on demand. 14379 Changed the engine header files to avoid the duplication of some 14380 declarations (they differed!). 14381 14382 *Richard Levitte* 14383 14384 * 'openssl engine' can now list capabilities. 14385 14386 *Richard Levitte* 14387 14388 * Better error reporting in 'openssl engine'. 14389 14390 *Richard Levitte* 14391 14392 * Never call load_dh_param(NULL) in s_server. 14393 14394 *Bodo Moeller* 14395 14396 * Add engine application. It can currently list engines by name and 14397 identity, and test if they are actually available. 14398 14399 *Richard Levitte* 14400 14401 * Improve RPM specification file by forcing symbolic linking and making 14402 sure the installed documentation is also owned by root.root. 14403 14404 *Damien Miller <djm@mindrot.org>* 14405 14406 * Give the OpenSSL applications more possibilities to make use of 14407 keys (public as well as private) handled by engines. 14408 14409 *Richard Levitte* 14410 14411 * Add OCSP code that comes from CertCo. 14412 14413 *Richard Levitte* 14414 14415 * Add VMS support for the Rijndael code. 14416 14417 *Richard Levitte* 14418 14419 * Added untested support for Nuron crypto accelerator. 14420 14421 *Ben Laurie* 14422 14423 * Add support for external cryptographic devices. This code was 14424 previously distributed separately as the "engine" branch. 14425 14426 *Geoff Thorpe, Richard Levitte* 14427 14428 * Rework the filename-translation in the DSO code. It is now possible to 14429 have far greater control over how a "name" is turned into a filename 14430 depending on the operating environment and any oddities about the 14431 different shared library filenames on each system. 14432 14433 *Geoff Thorpe* 14434 14435 * Support threads on FreeBSD-elf in Configure. 14436 14437 *Richard Levitte* 14438 14439 * Fix for SHA1 assembly problem with MASM: it produces 14440 warnings about corrupt line number information when assembling 14441 with debugging information. This is caused by the overlapping 14442 of two sections. 14443 14444 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14445 14446 * NCONF changes. 14447 NCONF_get_number() has no error checking at all. As a replacement, 14448 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14449 promoted strongly. The old NCONF_get_number is kept around for 14450 binary backward compatibility. 14451 Make it possible for methods to load from something other than a BIO, 14452 by providing a function pointer that is given a name instead of a BIO. 14453 For example, this could be used to load configuration data from an 14454 LDAP server. 14455 14456 *Richard Levitte* 14457 14458 * Fix for non blocking accept BIOs. Added new I/O special reason 14459 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14460 with non blocking I/O was not possible because no retry code was 14461 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14462 this case. 14463 14464 *Steve Henson* 14465 14466 * Added the beginnings of Rijndael support. 14467 14468 *Ben Laurie* 14469 14470 * Fix for bug in DirectoryString mask setting. Add support for 14471 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14472 to allow certificate printing to more controllable, additional 14473 'certopt' option to 'x509' to allow new printing options to be 14474 set. 14475 14476 *Steve Henson* 14477 14478 * Clean old EAY MD5 hack from e_os.h. 14479 14480 *Richard Levitte* 14481 14482### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14483 14484 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14485 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14486 14487 *Joe Orton, Steve Henson* 14488 14489### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14490 14491 * Fix additional bug revealed by the NISCC test suite: 14492 14493 Stop bug triggering large recursion when presented with 14494 certain ASN.1 tags ([CVE-2003-0851]) 14495 14496 *Steve Henson* 14497 14498### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14499 14500 * Fix various bugs revealed by running the NISCC test suite: 14501 14502 Stop out of bounds reads in the ASN1 code when presented with 14503 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14504 14505 If verify callback ignores invalid public key errors don't try to check 14506 certificate signature with the NULL public key. 14507 14508 *Steve Henson* 14509 14510 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14511 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14512 specifications. 14513 14514 *Steve Henson* 14515 14516 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14517 extra data after the compression methods not only for TLS 1.0 14518 but also for SSL 3.0 (as required by the specification). 14519 14520 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14521 14522 * Change X509_certificate_type() to mark the key as exported/exportable 14523 when it's 512 *bits* long, not 512 bytes. 14524 14525 *Richard Levitte* 14526 14527### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14528 14529 * Countermeasure against the Klima-Pokorny-Rosa extension of 14530 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14531 a protocol version number mismatch like a decryption error 14532 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14533 14534 *Bodo Moeller* 14535 14536 * Turn on RSA blinding by default in the default implementation 14537 to avoid a timing attack. Applications that don't want it can call 14538 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14539 They would be ill-advised to do so in most cases. 14540 14541 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14542 14543 * Change RSA blinding code so that it works when the PRNG is not 14544 seeded (in this case, the secret RSA exponent is abused as 14545 an unpredictable seed -- if it is not unpredictable, there 14546 is no point in blinding anyway). Make RSA blinding thread-safe 14547 by remembering the creator's thread ID in rsa->blinding and 14548 having all other threads use local one-time blinding factors 14549 (this requires more computation than sharing rsa->blinding, but 14550 avoids excessive locking; and if an RSA object is not shared 14551 between threads, blinding will still be very fast). 14552 14553 *Bodo Moeller* 14554 14555### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14556 14557 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14558 via timing by performing a MAC computation even if incorrect 14559 block cipher padding has been found. This is a countermeasure 14560 against active attacks where the attacker has to distinguish 14561 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14562 14563 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14564 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14565 Martin Vuagnoux (EPFL, Ilion)* 14566 14567### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14568 14569 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14570 memory from its contents. This is done with a counter that will 14571 place alternating values in each byte. This can be used to solve 14572 two issues: 1) the removal of calls to memset() by highly optimizing 14573 compilers, and 2) cleansing with other values than 0, since those can 14574 be read through on certain media, for example a swap space on disk. 14575 14576 *Geoff Thorpe* 14577 14578 * Bugfix: client side session caching did not work with external caching, 14579 because the session->cipher setting was not restored when reloading 14580 from the external cache. This problem was masked, when 14581 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14582 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14583 14584 *Lutz Jaenicke* 14585 14586 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14587 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14588 14589 *Zeev Lieber <zeev-l@yahoo.com>* 14590 14591 * Undo an undocumented change introduced in 0.9.6e which caused 14592 repeated calls to OpenSSL_add_all_ciphers() and 14593 OpenSSL_add_all_digests() to be ignored, even after calling 14594 EVP_cleanup(). 14595 14596 *Richard Levitte* 14597 14598 * Change the default configuration reader to deal with last line not 14599 being properly terminated. 14600 14601 *Richard Levitte* 14602 14603 * Change X509_NAME_cmp() so it applies the special rules on handling 14604 DN values that are of type PrintableString, as well as RDNs of type 14605 emailAddress where the value has the type ia5String. 14606 14607 *stefank@valicert.com via Richard Levitte* 14608 14609 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14610 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14611 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14612 the bitwise-OR of the two for use by the majority of applications 14613 wanting this behaviour, and update the docs. The documented 14614 behaviour and actual behaviour were inconsistent and had been 14615 changing anyway, so this is more a bug-fix than a behavioural 14616 change. 14617 14618 *Geoff Thorpe, diagnosed by Nadav Har'El* 14619 14620 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14621 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14622 14623 *Bodo Moeller* 14624 14625 * Fix initialization code race conditions in 14626 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14627 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14628 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14629 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14630 ssl2_get_cipher_by_char(), 14631 ssl3_get_cipher_by_char(). 14632 14633 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14634 14635 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14636 the cached sessions are flushed, as the remove_cb() might use ex_data 14637 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14638 (see [openssl.org #212]). 14639 14640 *Geoff Thorpe, Lutz Jaenicke* 14641 14642 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14643 length, instead of the encoding length to d2i_ASN1_OBJECT. 14644 14645 *Steve Henson* 14646 14647### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14648 14649 * [In 0.9.6g-engine release:] 14650 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14651 14652 *Lynn Gazis <lgazis@rainbow.com>* 14653 14654### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14655 14656 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14657 and get fix the header length calculation. 14658 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14659 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14660 14661 * Use proper error handling instead of 'assertions' in buffer 14662 overflow checks added in 0.9.6e. This prevents DoS (the 14663 assertions could call abort()). 14664 14665 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14666 14667### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14668 14669 * Add various sanity checks to asn1_get_length() to reject 14670 the ASN1 length bytes if they exceed sizeof(long), will appear 14671 negative or the content length exceeds the length of the 14672 supplied buffer. 14673 14674 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14675 14676 * Fix cipher selection routines: ciphers without encryption had no flags 14677 for the cipher strength set and where therefore not handled correctly 14678 by the selection routines (PR #130). 14679 14680 *Lutz Jaenicke* 14681 14682 * Fix EVP_dsa_sha macro. 14683 14684 *Nils Larsch* 14685 14686 * New option 14687 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14688 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14689 that was added in OpenSSL 0.9.6d. 14690 14691 As the countermeasure turned out to be incompatible with some 14692 broken SSL implementations, the new option is part of SSL_OP_ALL. 14693 SSL_OP_ALL is usually employed when compatibility with weird SSL 14694 implementations is desired (e.g. '-bugs' option to 's_client' and 14695 's_server'), so the new option is automatically set in many 14696 applications. 14697 14698 *Bodo Moeller* 14699 14700 * Changes in security patch: 14701 14702 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14703 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14704 Air Force Materiel Command, USAF, under agreement number 14705 F30602-01-2-0537. 14706 14707 * Add various sanity checks to asn1_get_length() to reject 14708 the ASN1 length bytes if they exceed sizeof(long), will appear 14709 negative or the content length exceeds the length of the 14710 supplied buffer. ([CVE-2002-0659]) 14711 14712 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14713 14714 * Assertions for various potential buffer overflows, not known to 14715 happen in practice. 14716 14717 *Ben Laurie (CHATS)* 14718 14719 * Various temporary buffers to hold ASCII versions of integers were 14720 too small for 64 bit platforms. ([CVE-2002-0655]) 14721 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14722 14723 * Remote buffer overflow in SSL3 protocol - an attacker could 14724 supply an oversized session ID to a client. ([CVE-2002-0656]) 14725 14726 *Ben Laurie (CHATS)* 14727 14728 * Remote buffer overflow in SSL2 protocol - an attacker could 14729 supply an oversized client master key. ([CVE-2002-0656]) 14730 14731 *Ben Laurie (CHATS)* 14732 14733### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14734 14735 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14736 encoded as NULL) with id-dsa-with-sha1. 14737 14738 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14739 14740 * Check various `X509_...()` return values in `apps/req.c`. 14741 14742 *Nils Larsch <nla@trustcenter.de>* 14743 14744 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14745 an end-of-file condition would erroneously be flagged, when the CRLF 14746 was just at the end of a processed block. The bug was discovered when 14747 processing data through a buffering memory BIO handing the data to a 14748 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14749 <ptsekov@syntrex.com> and Nedelcho Stanev. 14750 14751 *Lutz Jaenicke* 14752 14753 * Implement a countermeasure against a vulnerability recently found 14754 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14755 before application data chunks to avoid the use of known IVs 14756 with data potentially chosen by the attacker. 14757 14758 *Bodo Moeller* 14759 14760 * Fix length checks in ssl3_get_client_hello(). 14761 14762 *Bodo Moeller* 14763 14764 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14765 to prevent ssl3_read_internal() from incorrectly assuming that 14766 ssl3_read_bytes() found application data while handshake 14767 processing was enabled when in fact s->s3->in_read_app_data was 14768 merely automatically cleared during the initial handshake. 14769 14770 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14771 14772 * Fix object definitions for Private and Enterprise: they were not 14773 recognized in their shortname (=lowercase) representation. Extend 14774 obj_dat.pl to issue an error when using undefined keywords instead 14775 of silently ignoring the problem (Svenning Sorensen 14776 <sss@sss.dnsalias.net>). 14777 14778 *Lutz Jaenicke* 14779 14780 * Fix DH_generate_parameters() so that it works for 'non-standard' 14781 generators, i.e. generators other than 2 and 5. (Previously, the 14782 code did not properly initialise the 'add' and 'rem' values to 14783 BN_generate_prime().) 14784 14785 In the new general case, we do not insist that 'generator' is 14786 actually a primitive root: This requirement is rather pointless; 14787 a generator of the order-q subgroup is just as good, if not 14788 better. 14789 14790 *Bodo Moeller* 14791 14792 * Map new X509 verification errors to alerts. Discovered and submitted by 14793 Tom Wu <tom@arcot.com>. 14794 14795 *Lutz Jaenicke* 14796 14797 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 14798 returning non-zero before the data has been completely received 14799 when using non-blocking I/O. 14800 14801 *Bodo Moeller; problem pointed out by John Hughes* 14802 14803 * Some of the ciphers missed the strength entry (SSL_LOW etc). 14804 14805 *Ben Laurie, Lutz Jaenicke* 14806 14807 * Fix bug in SSL_clear(): bad sessions were not removed (found by 14808 Yoram Zahavi <YoramZ@gilian.com>). 14809 14810 *Lutz Jaenicke* 14811 14812 * Add information about CygWin 1.3 and on, and preserve proper 14813 configuration for the versions before that. 14814 14815 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 14816 14817 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 14818 check whether we deal with a copy of a session and do not delete from 14819 the cache in this case. Problem reported by "Izhar Shoshani Levi" 14820 <izhar@checkpoint.com>. 14821 14822 *Lutz Jaenicke* 14823 14824 * Do not store session data into the internal session cache, if it 14825 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 14826 flag is set). Proposed by Aslam <aslam@funk.com>. 14827 14828 *Lutz Jaenicke* 14829 14830 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 14831 value is 0. 14832 14833 *Richard Levitte* 14834 14835 * [In 0.9.6d-engine release:] 14836 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 14837 14838 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 14839 14840 * Add the configuration target linux-s390x. 14841 14842 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 14843 14844 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 14845 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 14846 variable as an indication that a ClientHello message has been 14847 received. As the flag value will be lost between multiple 14848 invocations of ssl3_accept when using non-blocking I/O, the 14849 function may not be aware that a handshake has actually taken 14850 place, thus preventing a new session from being added to the 14851 session cache. 14852 14853 To avoid this problem, we now set s->new_session to 2 instead of 14854 using a local variable. 14855 14856 *Lutz Jaenicke, Bodo Moeller* 14857 14858 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 14859 if the SSL_R_LENGTH_MISMATCH error is detected. 14860 14861 *Geoff Thorpe, Bodo Moeller* 14862 14863 * New 'shared_ldflag' column in Configure platform table. 14864 14865 *Richard Levitte* 14866 14867 * Fix EVP_CIPHER_mode macro. 14868 14869 *"Dan S. Camper" <dan@bti.net>* 14870 14871 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 14872 type, we must throw them away by setting rr->length to 0. 14873 14874 *D P Chang <dpc@qualys.com>* 14875 14876### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 14877 14878 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 14879 <Dominikus.Scherkl@biodata.com>. (The previous implementation 14880 worked incorrectly for those cases where range = `10..._2` and 14881 `3*range` is two bits longer than range.) 14882 14883 *Bodo Moeller* 14884 14885 * Only add signing time to PKCS7 structures if it is not already 14886 present. 14887 14888 *Steve Henson* 14889 14890 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 14891 OBJ_ld_ce should be OBJ_id_ce. 14892 Also some ip-pda OIDs in crypto/objects/objects.txt were 14893 incorrect (cf. RFC 3039). 14894 14895 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 14896 14897 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 14898 returns early because it has nothing to do. 14899 14900 *Andy Schneider <andy.schneider@bjss.co.uk>* 14901 14902 * [In 0.9.6c-engine release:] 14903 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 14904 14905 *Andy Schneider <andy.schneider@bjss.co.uk>* 14906 14907 * [In 0.9.6c-engine release:] 14908 Add support for Cryptographic Appliance's keyserver technology. 14909 (Use engine 'keyclient') 14910 14911 *Cryptographic Appliances and Geoff Thorpe* 14912 14913 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 14914 is called via tools/c89.sh because arguments have to be 14915 rearranged (all '-L' options must appear before the first object 14916 modules). 14917 14918 *Richard Shapiro <rshapiro@abinitio.com>* 14919 14920 * [In 0.9.6c-engine release:] 14921 Add support for Broadcom crypto accelerator cards, backported 14922 from 0.9.7. 14923 14924 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 14925 14926 * [In 0.9.6c-engine release:] 14927 Add support for SureWare crypto accelerator cards from 14928 Baltimore Technologies. (Use engine 'sureware') 14929 14930 *Baltimore Technologies and Mark Cox* 14931 14932 * [In 0.9.6c-engine release:] 14933 Add support for crypto accelerator cards from Accelerated 14934 Encryption Processing, www.aep.ie. (Use engine 'aep') 14935 14936 *AEP Inc. and Mark Cox* 14937 14938 * Add a configuration entry for gcc on UnixWare. 14939 14940 *Gary Benson <gbenson@redhat.com>* 14941 14942 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 14943 messages are stored in a single piece (fixed-length part and 14944 variable-length part combined) and fix various bugs found on the way. 14945 14946 *Bodo Moeller* 14947 14948 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 14949 instead. BIO_gethostbyname() does not know what timeouts are 14950 appropriate, so entries would stay in cache even when they have 14951 become invalid. 14952 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 14953 14954 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 14955 faced with a pathologically small ClientHello fragment that does 14956 not contain client_version: Instead of aborting with an error, 14957 simply choose the highest available protocol version (i.e., 14958 TLS 1.0 unless it is disabled). In practice, ClientHello 14959 messages are never sent like this, but this change gives us 14960 strictly correct behaviour at least for TLS. 14961 14962 *Bodo Moeller* 14963 14964 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 14965 never resets s->method to s->ctx->method when called from within 14966 one of the SSL handshake functions. 14967 14968 *Bodo Moeller; problem pointed out by Niko Baric* 14969 14970 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 14971 (sent using the client's version number) if client_version is 14972 smaller than the protocol version in use. Also change 14973 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 14974 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 14975 the client will at least see that alert. 14976 14977 *Bodo Moeller* 14978 14979 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 14980 correctly. 14981 14982 *Bodo Moeller* 14983 14984 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 14985 client receives HelloRequest while in a handshake. 14986 14987 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 14988 14989 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 14990 should end in 'break', not 'goto end' which circumvents various 14991 cleanups done in state SSL_ST_OK. But session related stuff 14992 must be disabled for SSL_ST_OK in the case that we just sent a 14993 HelloRequest. 14994 14995 Also avoid some overhead by not calling ssl_init_wbio_buffer() 14996 before just sending a HelloRequest. 14997 14998 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 14999 15000 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 15001 reveal whether illegal block cipher padding was found or a MAC 15002 verification error occurred. (Neither SSLerr() codes nor alerts 15003 are directly visible to potential attackers, but the information 15004 may leak via logfiles.) 15005 15006 Similar changes are not required for the SSL 2.0 implementation 15007 because the number of padding bytes is sent in clear for SSL 2.0, 15008 and the extra bytes are just ignored. However ssl/s2_pkt.c 15009 failed to verify that the purported number of padding bytes is in 15010 the legal range. 15011 15012 *Bodo Moeller* 15013 15014 * Add OpenUNIX-8 support including shared libraries 15015 (Boyd Lynn Gerber <gerberb@zenez.com>). 15016 15017 *Lutz Jaenicke* 15018 15019 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 15020 'wristwatch attack' using huge encoding parameters (cf. 15021 James H. Manger's CRYPTO 2001 paper). Note that the 15022 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 15023 encoding parameters and hence was not vulnerable. 15024 15025 *Bodo Moeller* 15026 15027 * BN_sqr() bug fix. 15028 15029 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 15030 15031 * Rabin-Miller test analyses assume uniformly distributed witnesses, 15032 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 15033 followed by modular reduction. 15034 15035 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 15036 15037 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 15038 equivalent based on BN_pseudo_rand() instead of BN_rand(). 15039 15040 *Bodo Moeller* 15041 15042 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 15043 This function was broken, as the check for a new client hello message 15044 to handle SGC did not allow these large messages. 15045 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 15046 15047 *Lutz Jaenicke* 15048 15049 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 15050 15051 *Lutz Jaenicke* 15052 15053 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 15054 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 15055 15056 *Lutz Jaenicke* 15057 15058 * Rework the configuration and shared library support for Tru64 Unix. 15059 The configuration part makes use of modern compiler features and 15060 still retains old compiler behavior for those that run older versions 15061 of the OS. The shared library support part includes a variant that 15062 uses the RPATH feature, and is available through the special 15063 configuration target "alpha-cc-rpath", which will never be selected 15064 automatically. 15065 15066 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 15067 15068 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 15069 with the same message size as in ssl3_get_certificate_request(). 15070 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 15071 messages might inadvertently be reject as too long. 15072 15073 *Petr Lampa <lampa@fee.vutbr.cz>* 15074 15075 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 15076 15077 *Andy Polyakov* 15078 15079 * Modified SSL library such that the verify_callback that has been set 15080 specifically for an SSL object with SSL_set_verify() is actually being 15081 used. Before the change, a verify_callback set with this function was 15082 ignored and the verify_callback() set in the SSL_CTX at the time of 15083 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 15084 to allow the necessary settings. 15085 15086 *Lutz Jaenicke* 15087 15088 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 15089 explicitly to NULL, as at least on Solaris 8 this seems not always to be 15090 done automatically (in contradiction to the requirements of the C 15091 standard). This made problems when used from OpenSSH. 15092 15093 *Lutz Jaenicke* 15094 15095 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 15096 dh->length and always used 15097 15098 BN_rand_range(priv_key, dh->p). 15099 15100 BN_rand_range() is not necessary for Diffie-Hellman, and this 15101 specific range makes Diffie-Hellman unnecessarily inefficient if 15102 dh->length (recommended exponent length) is much smaller than the 15103 length of dh->p. We could use BN_rand_range() if the order of 15104 the subgroup was stored in the DH structure, but we only have 15105 dh->length. 15106 15107 So switch back to 15108 15109 BN_rand(priv_key, l, ...) 15110 15111 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 15112 otherwise. 15113 15114 *Bodo Moeller* 15115 15116 * In 15117 15118 RSA_eay_public_encrypt 15119 RSA_eay_private_decrypt 15120 RSA_eay_private_encrypt (signing) 15121 RSA_eay_public_decrypt (signature verification) 15122 15123 (default implementations for RSA_public_encrypt, 15124 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 15125 always reject numbers >= n. 15126 15127 *Bodo Moeller* 15128 15129 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 15130 to synchronize access to 'locking_thread'. This is necessary on 15131 systems where access to 'locking_thread' (an 'unsigned long' 15132 variable) is not atomic. 15133 15134 *Bodo Moeller* 15135 15136 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 15137 *before* setting the 'crypto_lock_rand' flag. The previous code had 15138 a race condition if 0 is a valid thread ID. 15139 15140 *Travis Vitek <vitek@roguewave.com>* 15141 15142 * Add support for shared libraries under Irix. 15143 15144 *Albert Chin-A-Young <china@thewrittenword.com>* 15145 15146 * Add configuration option to build on Linux on both big-endian and 15147 little-endian MIPS. 15148 15149 *Ralf Baechle <ralf@uni-koblenz.de>* 15150 15151 * Add the possibility to create shared libraries on HP-UX. 15152 15153 *Richard Levitte* 15154 15155### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15156 15157 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15158 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15159 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15160 PRNG state recovery was possible based on the output of 15161 one PRNG request appropriately sized to gain knowledge on 15162 'md' followed by enough consecutive 1-byte PRNG requests 15163 to traverse all of 'state'. 15164 15165 1. When updating 'md_local' (the current thread's copy of 'md') 15166 during PRNG output generation, hash all of the previous 15167 'md_local' value, not just the half used for PRNG output. 15168 15169 2. Make the number of bytes from 'state' included into the hash 15170 independent from the number of PRNG bytes requested. 15171 15172 The first measure alone would be sufficient to avoid 15173 Markku-Juhani's attack. (Actually it had never occurred 15174 to me that the half of 'md_local' used for chaining was the 15175 half from which PRNG output bytes were taken -- I had always 15176 assumed that the secret half would be used.) The second 15177 measure makes sure that additional data from 'state' is never 15178 mixed into 'md_local' in small portions; this heuristically 15179 further strengthens the PRNG. 15180 15181 *Bodo Moeller* 15182 15183 * Fix crypto/bn/asm/mips3.s. 15184 15185 *Andy Polyakov* 15186 15187 * When only the key is given to "enc", the IV is undefined. Print out 15188 an error message in this case. 15189 15190 *Lutz Jaenicke* 15191 15192 * Handle special case when X509_NAME is empty in X509 printing routines. 15193 15194 *Steve Henson* 15195 15196 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15197 positive and less than q. 15198 15199 *Bodo Moeller* 15200 15201 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15202 used: it isn't thread safe and the add_lock_callback should handle 15203 that itself. 15204 15205 *Paul Rose <Paul.Rose@bridge.com>* 15206 15207 * Verify that incoming data obeys the block size in 15208 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15209 15210 *Bodo Moeller* 15211 15212 * Fix OAEP check. 15213 15214 *Ulf Möller, Bodo Möller* 15215 15216 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15217 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15218 when fixing the server behaviour for backwards-compatible 'client 15219 hello' messages. (Note that the attack is impractical against 15220 SSL 3.0 and TLS 1.0 anyway because length and version checking 15221 means that the probability of guessing a valid ciphertext is 15222 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15223 paper.) 15224 15225 Before 0.9.5, the countermeasure (hide the error by generating a 15226 random 'decryption result') did not work properly because 15227 ERR_clear_error() was missing, meaning that SSL_get_error() would 15228 detect the supposedly ignored error. 15229 15230 Both problems are now fixed. 15231 15232 *Bodo Moeller* 15233 15234 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15235 (previously it was 1024). 15236 15237 *Bodo Moeller* 15238 15239 * Fix for compatibility mode trust settings: ignore trust settings 15240 unless some valid trust or reject settings are present. 15241 15242 *Steve Henson* 15243 15244 * Fix for blowfish EVP: its a variable length cipher. 15245 15246 *Steve Henson* 15247 15248 * Fix various bugs related to DSA S/MIME verification. Handle missing 15249 parameters in DSA public key structures and return an error in the 15250 DSA routines if parameters are absent. 15251 15252 *Steve Henson* 15253 15254 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15255 in the current directory if neither $RANDFILE nor $HOME was set. 15256 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15257 caused some confusion to Windows users who haven't defined $HOME. 15258 Thus RAND_file_name() is changed again: e_os.h can define a 15259 DEFAULT_HOME, which will be used if $HOME is not set. 15260 For Windows, we use "C:"; on other platforms, we still require 15261 environment variables. 15262 15263 * Move 'if (!initialized) RAND_poll()' into regions protected by 15264 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15265 having multiple threads call RAND_poll() concurrently. 15266 15267 *Bodo Moeller* 15268 15269 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15270 combination of a flag and a thread ID variable. 15271 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15272 flag), *other* threads can enter ssleay_add_bytes without obeying 15273 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15274 that they do not hold after the first thread unsets add_do_not_lock). 15275 15276 *Bodo Moeller* 15277 15278 * Change bctest again: '-x' expressions are not available in all 15279 versions of 'test'. 15280 15281 *Bodo Moeller* 15282 15283### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15284 15285 * Fix a couple of memory leaks in PKCS7_dataDecode() 15286 15287 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15288 15289 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15290 the default extension for executables, if any. Also, make the perl 15291 scripts that use symlink() to test if it really exists and use "cp" 15292 if it doesn't. All this made OpenSSL compilable and installable in 15293 CygWin. 15294 15295 *Richard Levitte* 15296 15297 * Fix for asn1_GetSequence() for indefinite length constructed data. 15298 If SEQUENCE is length is indefinite just set c->slen to the total 15299 amount of data available. 15300 15301 *Steve Henson, reported by shige@FreeBSD.org* 15302 15303 *This change does not apply to 0.9.7.* 15304 15305 * Change bctest to avoid here-documents inside command substitution 15306 (workaround for FreeBSD /bin/sh bug). 15307 For compatibility with Ultrix, avoid shell functions (introduced 15308 in the bctest version that searches along $PATH). 15309 15310 *Bodo Moeller* 15311 15312 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15313 with des_encrypt() defined on some operating systems, like Solaris 15314 and UnixWare. 15315 15316 *Richard Levitte* 15317 15318 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15319 On the Importance of Eliminating Errors in Cryptographic 15320 Computations, J. Cryptology 14 (2001) 2, 101-119, 15321 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15322 15323 *Ulf Moeller* 15324 15325 * MIPS assembler BIGNUM division bug fix. 15326 15327 *Andy Polyakov* 15328 15329 * Disabled incorrect Alpha assembler code. 15330 15331 *Richard Levitte* 15332 15333 * Fix PKCS#7 decode routines so they correctly update the length 15334 after reading an EOC for the EXPLICIT tag. 15335 15336 *Steve Henson* 15337 15338 *This change does not apply to 0.9.7.* 15339 15340 * Fix bug in PKCS#12 key generation routines. This was triggered 15341 if a 3DES key was generated with a 0 initial byte. Include 15342 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15343 (but broken) behaviour. 15344 15345 *Steve Henson* 15346 15347 * Enhance bctest to search for a working bc along $PATH and print 15348 it when found. 15349 15350 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15351 15352 * Fix memory leaks in err.c: free err_data string if necessary; 15353 don't write to the wrong index in ERR_set_error_data. 15354 15355 *Bodo Moeller* 15356 15357 * Implement ssl23_peek (analogous to ssl23_read), which previously 15358 did not exist. 15359 15360 *Bodo Moeller* 15361 15362 * Replace rdtsc with `_emit` statements for VC++ version 5. 15363 15364 *Jeremy Cooper <jeremy@baymoo.org>* 15365 15366 * Make it possible to reuse SSLv2 sessions. 15367 15368 *Richard Levitte* 15369 15370 * In copy_email() check for >= 0 as a return value for 15371 X509_NAME_get_index_by_NID() since 0 is a valid index. 15372 15373 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15374 15375 * Avoid coredump with unsupported or invalid public keys by checking if 15376 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15377 PKCS7_verify() fails with non detached data. 15378 15379 *Steve Henson* 15380 15381 * Don't use getenv in library functions when run as setuid/setgid. 15382 New function OPENSSL_issetugid(). 15383 15384 *Ulf Moeller* 15385 15386 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15387 due to incorrect handling of multi-threading: 15388 15389 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15390 15391 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15392 15393 3. Count how many times MemCheck_off() has been called so that 15394 nested use can be treated correctly. This also avoids 15395 inband-signalling in the previous code (which relied on the 15396 assumption that thread ID 0 is impossible). 15397 15398 *Bodo Moeller* 15399 15400 * Add "-rand" option also to s_client and s_server. 15401 15402 *Lutz Jaenicke* 15403 15404 * Fix CPU detection on Irix 6.x. 15405 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15406 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15407 15408 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15409 was empty. 15410 15411 *Steve Henson* 15412 15413 *This change does not apply to 0.9.7.* 15414 15415 * Use the cached encoding of an X509_NAME structure rather than 15416 copying it. This is apparently the reason for the libsafe "errors" 15417 but the code is actually correct. 15418 15419 *Steve Henson* 15420 15421 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15422 Bleichenbacher's DSA attack. 15423 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15424 to be set and top=0 forces the highest bit to be set; top=-1 is new 15425 and leaves the highest bit random. 15426 15427 *Ulf Moeller, Bodo Moeller* 15428 15429 * In the `NCONF_...`-based implementations for `CONF_...` queries 15430 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15431 a temporary CONF structure with the data component set to NULL 15432 (which gives segmentation faults in lh_retrieve). 15433 Instead, use NULL for the CONF pointer in CONF_get_string and 15434 CONF_get_number (which may use environment variables) and directly 15435 return NULL from CONF_get_section. 15436 15437 *Bodo Moeller* 15438 15439 * Fix potential buffer overrun for EBCDIC. 15440 15441 *Ulf Moeller* 15442 15443 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15444 keyUsage if basicConstraints absent for a CA. 15445 15446 *Steve Henson* 15447 15448 * Make SMIME_write_PKCS7() write mail header values with a format that 15449 is more generally accepted (no spaces before the semicolon), since 15450 some programs can't parse those values properly otherwise. Also make 15451 sure BIO's that break lines after each write do not create invalid 15452 headers. 15453 15454 *Richard Levitte* 15455 15456 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15457 macros previously used would not encode an empty SEQUENCE OF 15458 and break the signature. 15459 15460 *Steve Henson* 15461 15462 *This change does not apply to 0.9.7.* 15463 15464 * Zero the premaster secret after deriving the master secret in 15465 DH ciphersuites. 15466 15467 *Steve Henson* 15468 15469 * Add some EVP_add_digest_alias registrations (as found in 15470 OpenSSL_add_all_digests()) to SSL_library_init() 15471 aka OpenSSL_add_ssl_algorithms(). This provides improved 15472 compatibility with peers using X.509 certificates 15473 with unconventional AlgorithmIdentifier OIDs. 15474 15475 *Bodo Moeller* 15476 15477 * Fix for Irix with NO_ASM. 15478 15479 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15480 15481 * ./config script fixes. 15482 15483 *Ulf Moeller, Richard Levitte* 15484 15485 * Fix 'openssl passwd -1'. 15486 15487 *Bodo Moeller* 15488 15489 * Change PKCS12_key_gen_asc() so it can cope with non null 15490 terminated strings whose length is passed in the passlen 15491 parameter, for example from PEM callbacks. This was done 15492 by adding an extra length parameter to asc2uni(). 15493 15494 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15495 15496 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15497 call failed, free the DSA structure. 15498 15499 *Bodo Moeller* 15500 15501 * Fix to uni2asc() to cope with zero length Unicode strings. 15502 These are present in some PKCS#12 files. 15503 15504 *Steve Henson* 15505 15506 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15507 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15508 when writing a 32767 byte record. 15509 15510 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15511 15512 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15513 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15514 15515 (RSA objects have a reference count access to which is protected 15516 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15517 so they are meant to be shared between threads.) 15518 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15519 "Reddie, Steven" <Steven.Reddie@ca.com>* 15520 15521 * Fix a deadlock in CRYPTO_mem_leaks(). 15522 15523 *Bodo Moeller* 15524 15525 * Use better test patterns in bntest. 15526 15527 *Ulf Möller* 15528 15529 * rand_win.c fix for Borland C. 15530 15531 *Ulf Möller* 15532 15533 * BN_rshift bugfix for n == 0. 15534 15535 *Bodo Moeller* 15536 15537 * Add a 'bctest' script that checks for some known 'bc' bugs 15538 so that 'make test' does not abort just because 'bc' is broken. 15539 15540 *Bodo Moeller* 15541 15542 * Store verify_result within SSL_SESSION also for client side to 15543 avoid potential security hole. (Re-used sessions on the client side 15544 always resulted in verify_result==X509_V_OK, not using the original 15545 result of the server certificate verification.) 15546 15547 *Lutz Jaenicke* 15548 15549 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15550 SSL3_RT_APPLICATION_DATA, return 0. 15551 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15552 15553 *Bodo Moeller* 15554 15555 * Fix SSL_peek: 15556 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15557 releases, have been re-implemented by renaming the previous 15558 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15559 and ssl3_read_internal, respectively, and adding 'peek' parameters 15560 to them. The new ssl[23]_{read,peek} functions are calls to 15561 ssl[23]_read_internal with the 'peek' flag set appropriately. 15562 A 'peek' parameter has also been added to ssl3_read_bytes, which 15563 does the actual work for ssl3_read_internal. 15564 15565 *Bodo Moeller* 15566 15567 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15568 the method-specific "init()" handler. Also clean up ex_data after 15569 calling the method-specific "finish()" handler. Previously, this was 15570 happening the other way round. 15571 15572 *Geoff Thorpe* 15573 15574 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15575 The previous value, 12, was not always sufficient for BN_mod_exp(). 15576 15577 *Bodo Moeller* 15578 15579 * Make sure that shared libraries get the internal name engine with 15580 the full version number and not just 0. This should mark the 15581 shared libraries as not backward compatible. Of course, this should 15582 be changed again when we can guarantee backward binary compatibility. 15583 15584 *Richard Levitte* 15585 15586 * Fix typo in get_cert_by_subject() in by_dir.c 15587 15588 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15589 15590 * Rework the system to generate shared libraries: 15591 15592 - Make note of the expected extension for the shared libraries and 15593 if there is a need for symbolic links from for example libcrypto.so.0 15594 to libcrypto.so.0.9.7. There is extended info in Configure for 15595 that. 15596 15597 - Make as few rebuilds of the shared libraries as possible. 15598 15599 - Still avoid linking the OpenSSL programs with the shared libraries. 15600 15601 - When installing, install the shared libraries separately from the 15602 static ones. 15603 15604 *Richard Levitte* 15605 15606 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15607 15608 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15609 and not in SSL_clear because the latter is also used by the 15610 accept/connect functions; previously, the settings made by 15611 SSL_set_read_ahead would be lost during the handshake. 15612 15613 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15614 15615 * Correct util/mkdef.pl to be selective about disabled algorithms. 15616 Previously, it would create entries for disabled algorithms no 15617 matter what. 15618 15619 *Richard Levitte* 15620 15621 * Added several new manual pages for SSL_* function. 15622 15623 *Lutz Jaenicke* 15624 15625### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15626 15627 * In ssl23_get_client_hello, generate an error message when faced 15628 with an initial SSL 3.0/TLS record that is too small to contain the 15629 first two bytes of the ClientHello message, i.e. client_version. 15630 (Note that this is a pathologic case that probably has never happened 15631 in real life.) The previous approach was to use the version number 15632 from the record header as a substitute; but our protocol choice 15633 should not depend on that one because it is not authenticated 15634 by the Finished messages. 15635 15636 *Bodo Moeller* 15637 15638 * More robust randomness gathering functions for Windows. 15639 15640 *Jeffrey Altman <jaltman@columbia.edu>* 15641 15642 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15643 not set then we don't setup the error code for issuer check errors 15644 to avoid possibly overwriting other errors which the callback does 15645 handle. If an application does set the flag then we assume it knows 15646 what it is doing and can handle the new informational codes 15647 appropriately. 15648 15649 *Steve Henson* 15650 15651 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15652 a general "ANY" type, as such it should be able to decode anything 15653 including tagged types. However it didn't check the class so it would 15654 wrongly interpret tagged types in the same way as their universal 15655 counterpart and unknown types were just rejected. Changed so that the 15656 tagged and unknown types are handled in the same way as a SEQUENCE: 15657 that is the encoding is stored intact. There is also a new type 15658 "V_ASN1_OTHER" which is used when the class is not universal, in this 15659 case we have no idea what the actual type is so we just lump them all 15660 together. 15661 15662 *Steve Henson* 15663 15664 * On VMS, stdout may very well lead to a file that is written to 15665 in a record-oriented fashion. That means that every write() will 15666 write a separate record, which will be read separately by the 15667 programs trying to read from it. This can be very confusing. 15668 15669 The solution is to put a BIO filter in the way that will buffer 15670 text until a linefeed is reached, and then write everything a 15671 line at a time, so every record written will be an actual line, 15672 not chunks of lines and not (usually doesn't happen, but I've 15673 seen it once) several lines in one record. BIO_f_linebuffer() is 15674 the answer. 15675 15676 Currently, it's a VMS-only method, because that's where it has 15677 been tested well enough. 15678 15679 *Richard Levitte* 15680 15681 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15682 it can return incorrect results. 15683 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15684 but it was in 0.9.6-beta[12].) 15685 15686 *Bodo Moeller* 15687 15688 * Disable the check for content being present when verifying detached 15689 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15690 include zero length content when signing messages. 15691 15692 *Steve Henson* 15693 15694 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15695 BIO_ctrl (for BIO pairs). 15696 15697 *Bodo Möller* 15698 15699 * Add DSO method for VMS. 15700 15701 *Richard Levitte* 15702 15703 * Bug fix: Montgomery multiplication could produce results with the 15704 wrong sign. 15705 15706 *Ulf Möller* 15707 15708 * Add RPM specification openssl.spec and modify it to build three 15709 packages. The default package contains applications, application 15710 documentation and run-time libraries. The devel package contains 15711 include files, static libraries and function documentation. The 15712 doc package contains the contents of the doc directory. The original 15713 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15714 15715 *Richard Levitte* 15716 15717 * Add a large number of documentation files for many SSL routines. 15718 15719 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15720 15721 * Add a configuration entry for Sony News 4. 15722 15723 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15724 15725 * Don't set the two most significant bits to one when generating a 15726 random number < q in the DSA library. 15727 15728 *Ulf Möller* 15729 15730 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15731 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15732 the underlying transport is blocking) if a handshake took place. 15733 (The default behaviour is needed by applications such as s_client 15734 and s_server that use select() to determine when to use SSL_read; 15735 but for applications that know in advance when to expect data, it 15736 just makes things more complicated.) 15737 15738 *Bodo Moeller* 15739 15740 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15741 from EGD. 15742 15743 *Ben Laurie* 15744 15745 * Add a few more EBCDIC conditionals that make `req` and `x509` 15746 work better on such systems. 15747 15748 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15749 15750 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15751 Update PKCS12_parse() so it copies the friendlyName and the 15752 keyid to the certificates aux info. 15753 15754 *Steve Henson* 15755 15756 * Fix bug in PKCS7_verify() which caused an infinite loop 15757 if there was more than one signature. 15758 15759 *Sven Uszpelkat <su@celocom.de>* 15760 15761 * Major change in util/mkdef.pl to include extra information 15762 about each symbol, as well as presenting variables as well 15763 as functions. This change means that there's n more need 15764 to rebuild the .num files when some algorithms are excluded. 15765 15766 *Richard Levitte* 15767 15768 * Allow the verify time to be set by an application, 15769 rather than always using the current time. 15770 15771 *Steve Henson* 15772 15773 * Phase 2 verify code reorganisation. The certificate 15774 verify code now looks up an issuer certificate by a 15775 number of criteria: subject name, authority key id 15776 and key usage. It also verifies self signed certificates 15777 by the same criteria. The main comparison function is 15778 X509_check_issued() which performs these checks. 15779 15780 Lot of changes were necessary in order to support this 15781 without completely rewriting the lookup code. 15782 15783 Authority and subject key identifier are now cached. 15784 15785 The LHASH 'certs' is X509_STORE has now been replaced 15786 by a STACK_OF(X509_OBJECT). This is mainly because an 15787 LHASH can't store or retrieve multiple objects with 15788 the same hash value. 15789 15790 As a result various functions (which were all internal 15791 use only) have changed to handle the new X509_STORE 15792 structure. This will break anything that messed round 15793 with X509_STORE internally. 15794 15795 The functions X509_STORE_add_cert() now checks for an 15796 exact match, rather than just subject name. 15797 15798 The X509_STORE API doesn't directly support the retrieval 15799 of multiple certificates matching a given criteria, however 15800 this can be worked round by performing a lookup first 15801 (which will fill the cache with candidate certificates) 15802 and then examining the cache for matches. This is probably 15803 the best we can do without throwing out X509_LOOKUP 15804 entirely (maybe later...). 15805 15806 The X509_VERIFY_CTX structure has been enhanced considerably. 15807 15808 All certificate lookup operations now go via a get_issuer() 15809 callback. Although this currently uses an X509_STORE it 15810 can be replaced by custom lookups. This is a simple way 15811 to bypass the X509_STORE hackery necessary to make this 15812 work and makes it possible to use more efficient techniques 15813 in future. A very simple version which uses a simple 15814 STACK for its trusted certificate store is also provided 15815 using X509_STORE_CTX_trusted_stack(). 15816 15817 The verify_cb() and verify() callbacks now have equivalents 15818 in the X509_STORE_CTX structure. 15819 15820 X509_STORE_CTX also has a 'flags' field which can be used 15821 to customise the verify behaviour. 15822 15823 *Steve Henson* 15824 15825 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 15826 excludes S/MIME capabilities. 15827 15828 *Steve Henson* 15829 15830 * When a certificate request is read in keep a copy of the 15831 original encoding of the signed data and use it when outputting 15832 again. Signatures then use the original encoding rather than 15833 a decoded, encoded version which may cause problems if the 15834 request is improperly encoded. 15835 15836 *Steve Henson* 15837 15838 * For consistency with other BIO_puts implementations, call 15839 buffer_write(b, ...) directly in buffer_puts instead of calling 15840 BIO_write(b, ...). 15841 15842 In BIO_puts, increment b->num_write as in BIO_write. 15843 15844 *Peter.Sylvester@EdelWeb.fr* 15845 15846 * Fix BN_mul_word for the case where the word is 0. (We have to use 15847 BN_zero, we may not return a BIGNUM with an array consisting of 15848 words set to zero.) 15849 15850 *Bodo Moeller* 15851 15852 * Avoid calling abort() from within the library when problems are 15853 detected, except if preprocessor symbols have been defined 15854 (such as REF_CHECK, BN_DEBUG etc.). 15855 15856 *Bodo Moeller* 15857 15858 * New openssl application 'rsautl'. This utility can be 15859 used for low-level RSA operations. DER public key 15860 BIO/fp routines also added. 15861 15862 *Steve Henson* 15863 15864 * New Configure entry and patches for compiling on QNX 4. 15865 15866 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 15867 15868 * A demo state-machine implementation was sponsored by 15869 Nuron (<http://www.nuron.com/>) and is now available in 15870 demos/state_machine. 15871 15872 *Ben Laurie* 15873 15874 * New options added to the 'dgst' utility for signature 15875 generation and verification. 15876 15877 *Steve Henson* 15878 15879 * Unrecognized PKCS#7 content types are now handled via a 15880 catch all ASN1_TYPE structure. This allows unsupported 15881 types to be stored as a "blob" and an application can 15882 encode and decode it manually. 15883 15884 *Steve Henson* 15885 15886 * Fix various signed/unsigned issues to make a_strex.c 15887 compile under VC++. 15888 15889 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 15890 15891 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 15892 length if passed a buffer. ASN1_INTEGER_to_BN failed 15893 if passed a NULL BN and its argument was negative. 15894 15895 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 15896 15897 * Modification to PKCS#7 encoding routines to output definite 15898 length encoding. Since currently the whole structures are in 15899 memory there's not real point in using indefinite length 15900 constructed encoding. However if OpenSSL is compiled with 15901 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 15902 15903 *Steve Henson* 15904 15905 * Added BIO_vprintf() and BIO_vsnprintf(). 15906 15907 *Richard Levitte* 15908 15909 * Added more prefixes to parse for in the strings written 15910 through a logging bio, to cover all the levels that are available 15911 through syslog. The prefixes are now: 15912 15913 PANIC, EMERG, EMR => LOG_EMERG 15914 ALERT, ALR => LOG_ALERT 15915 CRIT, CRI => LOG_CRIT 15916 ERROR, ERR => LOG_ERR 15917 WARNING, WARN, WAR => LOG_WARNING 15918 NOTICE, NOTE, NOT => LOG_NOTICE 15919 INFO, INF => LOG_INFO 15920 DEBUG, DBG => LOG_DEBUG 15921 15922 and as before, if none of those prefixes are present at the 15923 beginning of the string, LOG_ERR is chosen. 15924 15925 On Win32, the `LOG_*` levels are mapped according to this: 15926 15927 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 15928 LOG_WARNING => EVENTLOG_WARNING_TYPE 15929 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 15930 15931 *Richard Levitte* 15932 15933 * Made it possible to reconfigure with just the configuration 15934 argument "reconf" or "reconfigure". The command line arguments 15935 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 15936 and are retrieved from there when reconfiguring. 15937 15938 *Richard Levitte* 15939 15940 * MD4 implemented. 15941 15942 *Assar Westerlund <assar@sics.se>, Richard Levitte* 15943 15944 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 15945 15946 *Richard Levitte* 15947 15948 * The obj_dat.pl script was messing up the sorting of object 15949 names. The reason was that it compared the quoted version 15950 of strings as a result "OCSP" > "OCSP Signing" because 15951 " > SPACE. Changed script to store unquoted versions of 15952 names and add quotes on output. It was also omitting some 15953 names from the lookup table if they were given a default 15954 value (that is if SN is missing it is given the same 15955 value as LN and vice versa), these are now added on the 15956 grounds that if an object has a name we should be able to 15957 look it up. Finally added warning output when duplicate 15958 short or long names are found. 15959 15960 *Steve Henson* 15961 15962 * Changes needed for Tandem NSK. 15963 15964 *Scott Uroff <scott@xypro.com>* 15965 15966 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 15967 RSA_padding_check_SSLv23(), special padding was never detected 15968 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 15969 version rollback attacks was not effective. 15970 15971 In s23_clnt.c, don't use special rollback-attack detection padding 15972 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 15973 client; similarly, in s23_srvr.c, don't do the rollback check if 15974 SSL 2.0 is the only protocol enabled in the server. 15975 15976 *Bodo Moeller* 15977 15978 * Make it possible to get hexdumps of unprintable data with 'openssl 15979 asn1parse'. By implication, the functions ASN1_parse_dump() and 15980 BIO_dump_indent() are added. 15981 15982 *Richard Levitte* 15983 15984 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 15985 these print out strings and name structures based on various 15986 flags including RFC2253 support and proper handling of 15987 multibyte characters. Added options to the 'x509' utility 15988 to allow the various flags to be set. 15989 15990 *Steve Henson* 15991 15992 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 15993 Also change the functions X509_cmp_current_time() and 15994 X509_gmtime_adj() work with an ASN1_TIME structure, 15995 this will enable certificates using GeneralizedTime in validity 15996 dates to be checked. 15997 15998 *Steve Henson* 15999 16000 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 16001 negative public key encodings) on by default, 16002 NO_NEG_PUBKEY_BUG can be set to disable it. 16003 16004 *Steve Henson* 16005 16006 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 16007 content octets. An i2c_ASN1_OBJECT is unnecessary because 16008 the encoding can be trivially obtained from the structure. 16009 16010 *Steve Henson* 16011 16012 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 16013 not read locks (`CRYPTO_r_[un]lock`). 16014 16015 *Bodo Moeller* 16016 16017 * A first attempt at creating official support for shared 16018 libraries through configuration. I've kept it so the 16019 default is static libraries only, and the OpenSSL programs 16020 are always statically linked for now, but there are 16021 preparations for dynamic linking in place. 16022 This has been tested on Linux and Tru64. 16023 16024 *Richard Levitte* 16025 16026 * Randomness polling function for Win9x, as described in: 16027 Peter Gutmann, Software Generation of Practically Strong 16028 Random Numbers. 16029 16030 *Ulf Möller* 16031 16032 * Fix so PRNG is seeded in req if using an already existing 16033 DSA key. 16034 16035 *Steve Henson* 16036 16037 * New options to smime application. -inform and -outform 16038 allow alternative formats for the S/MIME message including 16039 PEM and DER. The -content option allows the content to be 16040 specified separately. This should allow things like Netscape 16041 form signing output easier to verify. 16042 16043 *Steve Henson* 16044 16045 * Fix the ASN1 encoding of tags using the 'long form'. 16046 16047 *Steve Henson* 16048 16049 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 16050 STRING types. These convert content octets to and from the 16051 underlying type. The actual tag and length octets are 16052 already assumed to have been read in and checked. These 16053 are needed because all other string types have virtually 16054 identical handling apart from the tag. By having versions 16055 of the ASN1 functions that just operate on content octets 16056 IMPLICIT tagging can be handled properly. It also allows 16057 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 16058 and ASN1_INTEGER are identical apart from the tag. 16059 16060 *Steve Henson* 16061 16062 * Change the handling of OID objects as follows: 16063 16064 - New object identifiers are inserted in objects.txt, following 16065 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 16066 - objects.pl is used to process obj_mac.num and create a new 16067 obj_mac.h. 16068 - obj_dat.pl is used to create a new obj_dat.h, using the data in 16069 obj_mac.h. 16070 16071 This is currently kind of a hack, and the perl code in objects.pl 16072 isn't very elegant, but it works as I intended. The simplest way 16073 to check that it worked correctly is to look in obj_dat.h and 16074 check the array nid_objs and make sure the objects haven't moved 16075 around (this is important!). Additions are OK, as well as 16076 consistent name changes. 16077 16078 *Richard Levitte* 16079 16080 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 16081 16082 *Bodo Moeller* 16083 16084 * Addition of the command line parameter '-rand file' to 'openssl req'. 16085 The given file adds to whatever has already been seeded into the 16086 random pool through the RANDFILE configuration file option or 16087 environment variable, or the default random state file. 16088 16089 *Richard Levitte* 16090 16091 * mkstack.pl now sorts each macro group into lexical order. 16092 Previously the output order depended on the order the files 16093 appeared in the directory, resulting in needless rewriting 16094 of safestack.h . 16095 16096 *Steve Henson* 16097 16098 * Patches to make OpenSSL compile under Win32 again. Mostly 16099 work arounds for the VC++ problem that it treats func() as 16100 func(void). Also stripped out the parts of mkdef.pl that 16101 added extra typesafe functions: these no longer exist. 16102 16103 *Steve Henson* 16104 16105 * Reorganisation of the stack code. The macros are now all 16106 collected in safestack.h . Each macro is defined in terms of 16107 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 16108 DEBUG_SAFESTACK is now handled in terms of function casts, 16109 this has the advantage of retaining type safety without the 16110 use of additional functions. If DEBUG_SAFESTACK is not defined 16111 then the non typesafe macros are used instead. Also modified the 16112 mkstack.pl script to handle the new form. Needs testing to see 16113 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 16114 the default if no major problems. Similar behaviour for ASN1_SET_OF 16115 and PKCS12_STACK_OF. 16116 16117 *Steve Henson* 16118 16119 * When some versions of IIS use the 'NET' form of private key the 16120 key derivation algorithm is different. Normally MD5(password) is 16121 used as a 128 bit RC4 key. In the modified case 16122 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 16123 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 16124 as the old Netscape_RSA functions except they have an additional 16125 'sgckey' parameter which uses the modified algorithm. Also added 16126 an -sgckey command line option to the rsa utility. Thanks to 16127 Adrian Peck <bertie@ncipher.com> for posting details of the modified 16128 algorithm to openssl-dev. 16129 16130 *Steve Henson* 16131 16132 * The evp_local.h macros were using 'c.##kname' which resulted in 16133 invalid expansion on some systems (SCO 5.0.5 for example). 16134 Corrected to 'c.kname'. 16135 16136 *Phillip Porch <root@theporch.com>* 16137 16138 * New X509_get1_email() and X509_REQ_get1_email() functions that return 16139 a STACK of email addresses from a certificate or request, these look 16140 in the subject name and the subject alternative name extensions and 16141 omit any duplicate addresses. 16142 16143 *Steve Henson* 16144 16145 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 16146 This makes DSA verification about 2 % faster. 16147 16148 *Bodo Moeller* 16149 16150 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 16151 (meaning that now 2^5 values will be precomputed, which is only 4 KB 16152 plus overhead for 1024 bit moduli). 16153 This makes exponentiations about 0.5 % faster for 1024 bit 16154 exponents (as measured by "openssl speed rsa2048"). 16155 16156 *Bodo Moeller* 16157 16158 * Rename memory handling macros to avoid conflicts with other 16159 software: 16160 Malloc => OPENSSL_malloc 16161 Malloc_locked => OPENSSL_malloc_locked 16162 Realloc => OPENSSL_realloc 16163 Free => OPENSSL_free 16164 16165 *Richard Levitte* 16166 16167 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16168 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16169 16170 *Bodo Moeller* 16171 16172 * CygWin32 support. 16173 16174 *John Jarvie <jjarvie@newsguy.com>* 16175 16176 * The type-safe stack code has been rejigged. It is now only compiled 16177 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16178 by default all type-specific stack functions are "#define"d back to 16179 standard stack functions. This results in more streamlined output 16180 but retains the type-safety checking possibilities of the original 16181 approach. 16182 16183 *Geoff Thorpe* 16184 16185 * The STACK code has been cleaned up, and certain type declarations 16186 that didn't make a lot of sense have been brought in line. This has 16187 also involved a cleanup of sorts in safestack.h to more correctly 16188 map type-safe stack functions onto their plain stack counterparts. 16189 This work has also resulted in a variety of "const"ifications of 16190 lots of the code, especially `_cmp` operations which should normally 16191 be prototyped with "const" parameters anyway. 16192 16193 *Geoff Thorpe* 16194 16195 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16196 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16197 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16198 where all of 'md' is used each time the PRNG is used, but 'state' 16199 is used only indexed by a cyclic counter. As entropy may not be 16200 well distributed from the beginning, 'md' is important as a 16201 chaining variable. However, the output function chains only half 16202 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16203 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16204 in all of 'state' being rewritten, with the new values depending 16205 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16206 16207 *Bodo Moeller* 16208 16209 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16210 the handshake is continued after ssl_verify_cert_chain(); 16211 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16212 can lead to 'unexplainable' connection aborts later. 16213 16214 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16215 16216 * Major EVP API cipher revision. 16217 Add hooks for extra EVP features. This allows various cipher 16218 parameters to be set in the EVP interface. Support added for variable 16219 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16220 setting of RC2 and RC5 parameters. 16221 16222 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16223 ciphers. 16224 16225 Remove lots of duplicated code from the EVP library. For example *every* 16226 cipher init() function handles the 'iv' in the same way according to the 16227 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16228 for CFB and OFB modes they zero ctx->num. 16229 16230 New functionality allows removal of S/MIME code RC2 hack. 16231 16232 Most of the routines have the same form and so can be declared in terms 16233 of macros. 16234 16235 By shifting this to the top level EVP_CipherInit() it can be removed from 16236 all individual ciphers. If the cipher wants to handle IVs or keys 16237 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16238 flags. 16239 16240 Change lots of functions like EVP_EncryptUpdate() to now return a 16241 value: although software versions of the algorithms cannot fail 16242 any installed hardware versions can. 16243 16244 *Steve Henson* 16245 16246 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16247 this option is set, tolerate broken clients that send the negotiated 16248 protocol version number instead of the requested protocol version 16249 number. 16250 16251 *Bodo Moeller* 16252 16253 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16254 i.e. non-zero for export ciphersuites, zero otherwise. 16255 Previous versions had this flag inverted, inconsistent with 16256 rsa_tmp_cb (..._TMP_RSA_CB). 16257 16258 *Bodo Moeller; problem reported by Amit Chopra* 16259 16260 * Add missing DSA library text string. Work around for some IIS 16261 key files with invalid SEQUENCE encoding. 16262 16263 *Steve Henson* 16264 16265 * Add a document (doc/standards.txt) that list all kinds of standards 16266 and so on that are implemented in OpenSSL. 16267 16268 *Richard Levitte* 16269 16270 * Enhance c_rehash script. Old version would mishandle certificates 16271 with the same subject name hash and wouldn't handle CRLs at all. 16272 Added -fingerprint option to crl utility, to support new c_rehash 16273 features. 16274 16275 *Steve Henson* 16276 16277 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16278 16279 *Ulf Möller* 16280 16281 * Fix for SSL server purpose checking. Server checking was 16282 rejecting certificates which had extended key usage present 16283 but no ssl client purpose. 16284 16285 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16286 16287 * Make PKCS#12 code work with no password. The PKCS#12 spec 16288 is a little unclear about how a blank password is handled. 16289 Since the password in encoded as a BMPString with terminating 16290 double NULL a zero length password would end up as just the 16291 double NULL. However no password at all is different and is 16292 handled differently in the PKCS#12 key generation code. NS 16293 treats a blank password as zero length. MSIE treats it as no 16294 password on export: but it will try both on import. We now do 16295 the same: PKCS12_parse() tries zero length and no password if 16296 the password is set to "" or NULL (NULL is now a valid password: 16297 it wasn't before) as does the pkcs12 application. 16298 16299 *Steve Henson* 16300 16301 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16302 perror when PEM_read_bio_X509_REQ fails, the error message must 16303 be obtained from the error queue. 16304 16305 *Bodo Moeller* 16306 16307 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16308 it in ERR_remove_state if appropriate, and change ERR_get_state 16309 accordingly to avoid race conditions (this is necessary because 16310 thread_hash is no longer constant once set). 16311 16312 *Bodo Moeller* 16313 16314 * Bugfix for linux-elf makefile.one. 16315 16316 *Ulf Möller* 16317 16318 * RSA_get_default_method() will now cause a default 16319 RSA_METHOD to be chosen if one doesn't exist already. 16320 Previously this was only set during a call to RSA_new() 16321 or RSA_new_method(NULL) meaning it was possible for 16322 RSA_get_default_method() to return NULL. 16323 16324 *Geoff Thorpe* 16325 16326 * Added native name translation to the existing DSO code 16327 that will convert (if the flag to do so is set) filenames 16328 that are sufficiently small and have no path information 16329 into a canonical native form. Eg. "blah" converted to 16330 "libblah.so" or "blah.dll" etc. 16331 16332 *Geoff Thorpe* 16333 16334 * New function ERR_error_string_n(e, buf, len) which is like 16335 ERR_error_string(e, buf), but writes at most 'len' bytes 16336 including the 0 terminator. For ERR_error_string_n, 'buf' 16337 may not be NULL. 16338 16339 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16340 16341 * CONF library reworked to become more general. A new CONF 16342 configuration file reader "class" is implemented as well as a 16343 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16344 old `CONF_*` functions are still there, but are reimplemented to 16345 work in terms of the new functions. Also, a set of functions 16346 to handle the internal storage of the configuration data is 16347 provided to make it easier to write new configuration file 16348 reader "classes" (I can definitely see something reading a 16349 configuration file in XML format, for example), called `_CONF_*`, 16350 or "the configuration storage API"... 16351 16352 The new configuration file reading functions are: 16353 16354 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16355 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16356 16357 NCONF_default, NCONF_WIN32 16358 16359 NCONF_dump_fp, NCONF_dump_bio 16360 16361 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16362 NCONF_new creates a new CONF object. This works in the same way 16363 as other interfaces in OpenSSL, like the BIO interface. 16364 `NCONF_dump_*` dump the internal storage of the configuration file, 16365 which is useful for debugging. All other functions take the same 16366 arguments as the old `CONF_*` functions with the exception of the 16367 first that must be a `CONF *` instead of a `LHASH *`. 16368 16369 To make it easier to use the new classes with the old `CONF_*` functions, 16370 the function CONF_set_default_method is provided. 16371 16372 *Richard Levitte* 16373 16374 * Add '-tls1' option to 'openssl ciphers', which was already 16375 mentioned in the documentation but had not been implemented. 16376 (This option is not yet really useful because even the additional 16377 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16378 16379 *Bodo Moeller* 16380 16381 * Initial DSO code added into libcrypto for letting OpenSSL (and 16382 OpenSSL-based applications) load shared libraries and bind to 16383 them in a portable way. 16384 16385 *Geoff Thorpe, with contributions from Richard Levitte* 16386 16387### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16388 16389 * Make sure _lrotl and _lrotr are only used with MSVC. 16390 16391 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16392 (the default implementation of RAND_status). 16393 16394 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16395 to '-clrext' (= clear extensions), as intended and documented. 16396 *Bodo Moeller; inconsistency pointed out by Michael Attili 16397 <attili@amaxo.com>* 16398 16399 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16400 was larger than the MD block size. 16401 16402 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16403 16404 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16405 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16406 using the passed key: if the passed key was a private key the result 16407 of X509_print(), for example, would be to print out all the private key 16408 components. 16409 16410 *Steve Henson* 16411 16412 * des_quad_cksum() byte order bug fix. 16413 *Ulf Möller, using the problem description in krb4-0.9.7, where 16414 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16415 16416 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16417 discouraged. 16418 16419 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16420 16421 * For easily testing in shell scripts whether some command 16422 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16423 returns with exit code 0 iff no command of the given name is available. 16424 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16425 the output goes to stdout and nothing is printed to stderr. 16426 Additional arguments are always ignored. 16427 16428 Since for each cipher there is a command of the same name, 16429 the 'no-cipher' compilation switches can be tested this way. 16430 16431 ('openssl no-XXX' is not able to detect pseudo-commands such 16432 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16433 16434 *Bodo Moeller* 16435 16436 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16437 16438 *Bodo Moeller* 16439 16440 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16441 is set; it will be thrown away anyway because each handshake creates 16442 its own key. 16443 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16444 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16445 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16446 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16447 16448 *Bodo Moeller* 16449 16450 * New s_client option -ign_eof: EOF at stdin is ignored, and 16451 'Q' and 'R' lose their special meanings (quit/renegotiate). 16452 This is part of what -quiet does; unlike -quiet, -ign_eof 16453 does not suppress any output. 16454 16455 *Richard Levitte* 16456 16457 * Add compatibility options to the purpose and trust code. The 16458 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16459 accepts a certificate or CA, this was the previous behaviour, 16460 with all the associated security issues. 16461 16462 X509_TRUST_COMPAT is the old trust behaviour: only and 16463 automatically trust self signed roots in certificate store. A 16464 new trust setting X509_TRUST_DEFAULT is used to specify that 16465 a purpose has no associated trust setting and it should instead 16466 use the value in the default purpose. 16467 16468 *Steve Henson* 16469 16470 * Fix the PKCS#8 DSA private key code so it decodes keys again 16471 and fix a memory leak. 16472 16473 *Steve Henson* 16474 16475 * In util/mkerr.pl (which implements 'make errors'), preserve 16476 reason strings from the previous version of the .c file, as 16477 the default to have only downcase letters (and digits) in 16478 automatically generated reasons codes is not always appropriate. 16479 16480 *Bodo Moeller* 16481 16482 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16483 using strerror. Previously, ERR_reason_error_string() returned 16484 library names as reason strings for SYSerr; but SYSerr is a special 16485 case where small numbers are errno values, not library numbers. 16486 16487 *Bodo Moeller* 16488 16489 * Add '-dsaparam' option to 'openssl dhparam' application. This 16490 converts DSA parameters into DH parameters. (When creating parameters, 16491 DSA_generate_parameters is used.) 16492 16493 *Bodo Moeller* 16494 16495 * Include 'length' (recommended exponent length) in C code generated 16496 by 'openssl dhparam -C'. 16497 16498 *Bodo Moeller* 16499 16500 * The second argument to set_label in perlasm was already being used 16501 so couldn't be used as a "file scope" flag. Moved to third argument 16502 which was free. 16503 16504 *Steve Henson* 16505 16506 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16507 instead of RAND_bytes for encryption IVs and salts. 16508 16509 *Bodo Moeller* 16510 16511 * Include RAND_status() into RAND_METHOD instead of implementing 16512 it only for md_rand.c Otherwise replacing the PRNG by calling 16513 RAND_set_rand_method would be impossible. 16514 16515 *Bodo Moeller* 16516 16517 * Don't let DSA_generate_key() enter an infinite loop if the random 16518 number generation fails. 16519 16520 *Bodo Moeller* 16521 16522 * New 'rand' application for creating pseudo-random output. 16523 16524 *Bodo Moeller* 16525 16526 * Added configuration support for Linux/IA64 16527 16528 *Rolf Haberrecker <rolf@suse.de>* 16529 16530 * Assembler module support for Mingw32. 16531 16532 *Ulf Möller* 16533 16534 * Shared library support for HPUX (in shlib/). 16535 16536 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16537 16538 * Shared library support for Solaris gcc. 16539 16540 *Lutz Behnke <behnke@trustcenter.de>* 16541 16542### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16543 16544 * PKCS7_encrypt() was adding text MIME headers twice because they 16545 were added manually and by SMIME_crlf_copy(). 16546 16547 *Steve Henson* 16548 16549 * In bntest.c don't call BN_rand with zero bits argument. 16550 16551 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16552 16553 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16554 case was implemented. This caused BN_div_recp() to fail occasionally. 16555 16556 *Ulf Möller* 16557 16558 * Add an optional second argument to the set_label() in the perl 16559 assembly language builder. If this argument exists and is set 16560 to 1 it signals that the assembler should use a symbol whose 16561 scope is the entire file, not just the current function. This 16562 is needed with MASM which uses the format label:: for this scope. 16563 16564 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16565 16566 * Change the ASN1 types so they are typedefs by default. Before 16567 almost all types were #define'd to ASN1_STRING which was causing 16568 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16569 for example. 16570 16571 *Steve Henson* 16572 16573 * Change names of new functions to the new get1/get0 naming 16574 convention: After 'get1', the caller owns a reference count 16575 and has to call `..._free`; 'get0' returns a pointer to some 16576 data structure without incrementing reference counters. 16577 (Some of the existing 'get' functions increment a reference 16578 counter, some don't.) 16579 Similarly, 'set1' and 'add1' functions increase reference 16580 counters or duplicate objects. 16581 16582 *Steve Henson* 16583 16584 * Allow for the possibility of temp RSA key generation failure: 16585 the code used to assume it always worked and crashed on failure. 16586 16587 *Steve Henson* 16588 16589 * Fix potential buffer overrun problem in BIO_printf(). 16590 *Ulf Möller, using public domain code by Patrick Powell; problem 16591 pointed out by David Sacerdote <das33@cornell.edu>* 16592 16593 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16594 RAND_egd() and RAND_status(). In the command line application, 16595 the EGD socket can be specified like a seed file using RANDFILE 16596 or -rand. 16597 16598 *Ulf Möller* 16599 16600 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16601 Some CAs (e.g. Verisign) distribute certificates in this form. 16602 16603 *Steve Henson* 16604 16605 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16606 list to exclude them. This means that no special compilation option 16607 is needed to use anonymous DH: it just needs to be included in the 16608 cipher list. 16609 16610 *Steve Henson* 16611 16612 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16613 EVP_MD_type. The old functionality is available in a new macro called 16614 EVP_MD_md(). Change code that uses it and update docs. 16615 16616 *Steve Henson* 16617 16618 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16619 where the `void *` argument is replaced by a function pointer argument. 16620 Previously `void *` was abused to point to functions, which works on 16621 many platforms, but is not correct. As these functions are usually 16622 called by macros defined in OpenSSL header files, most source code 16623 should work without changes. 16624 16625 *Richard Levitte* 16626 16627 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16628 sections with information on -D... compiler switches used for 16629 compiling the library so that applications can see them. To enable 16630 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16631 must be defined. E.g., 16632 #define OPENSSL_ALGORITHM_DEFINES 16633 #include <openssl/opensslconf.h> 16634 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16635 16636 *Richard Levitte, Ulf and Bodo Möller* 16637 16638 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16639 record layer. 16640 16641 *Bodo Moeller* 16642 16643 * Change the 'other' type in certificate aux info to a STACK_OF 16644 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16645 the required ASN1 format: arbitrary types determined by an OID. 16646 16647 *Steve Henson* 16648 16649 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16650 argument to 'req'. This is not because the function is newer or 16651 better than others it just uses the work 'NEW' in the certificate 16652 request header lines. Some software needs this. 16653 16654 *Steve Henson* 16655 16656 * Reorganise password command line arguments: now passwords can be 16657 obtained from various sources. Delete the PEM_cb function and make 16658 it the default behaviour: i.e. if the callback is NULL and the 16659 usrdata argument is not NULL interpret it as a null terminated pass 16660 phrase. If usrdata and the callback are NULL then the pass phrase 16661 is prompted for as usual. 16662 16663 *Steve Henson* 16664 16665 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16666 the support is automatically enabled. The resulting binaries will 16667 autodetect the card and use it if present. 16668 16669 *Ben Laurie and Compaq Inc.* 16670 16671 * Work around for Netscape hang bug. This sends certificate request 16672 and server done in one record. Since this is perfectly legal in the 16673 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16674 the bugs/SSLv3 entry for more info. 16675 16676 *Steve Henson* 16677 16678 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16679 16680 *Andy Polyakov* 16681 16682 * Add -rand argument to smime and pkcs12 applications and read/write 16683 of seed file. 16684 16685 *Steve Henson* 16686 16687 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16688 16689 *Bodo Moeller* 16690 16691 * Add command line password options to the remaining applications. 16692 16693 *Steve Henson* 16694 16695 * Bug fix for BN_div_recp() for numerators with an even number of 16696 bits. 16697 16698 *Ulf Möller* 16699 16700 * More tests in bntest.c, and changed test_bn output. 16701 16702 *Ulf Möller* 16703 16704 * ./config recognizes MacOS X now. 16705 16706 *Andy Polyakov* 16707 16708 * Bug fix for BN_div() when the first words of num and divisor are 16709 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16710 16711 *Ulf Möller* 16712 16713 * Add support for various broken PKCS#8 formats, and command line 16714 options to produce them. 16715 16716 *Steve Henson* 16717 16718 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16719 get temporary BIGNUMs from a BN_CTX. 16720 16721 *Ulf Möller* 16722 16723 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16724 for p == 0. 16725 16726 *Ulf Möller* 16727 16728 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16729 include a #define from the old name to the new. The original intent 16730 was that statically linked binaries could for example just call 16731 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16732 link with digests. This never worked because SSLeay_add_all_digests() 16733 and SSLeay_add_all_ciphers() were in the same source file so calling 16734 one would link with the other. They are now in separate source files. 16735 16736 *Steve Henson* 16737 16738 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16739 16740 *Steve Henson* 16741 16742 * Use a less unusual form of the Miller-Rabin primality test (it used 16743 a binary algorithm for exponentiation integrated into the Miller-Rabin 16744 loop, our standard modexp algorithms are faster). 16745 16746 *Bodo Moeller* 16747 16748 * Support for the EBCDIC character set completed. 16749 16750 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16751 16752 * Source code cleanups: use const where appropriate, eliminate casts, 16753 use `void *` instead of `char *` in lhash. 16754 16755 *Ulf Möller* 16756 16757 * Bugfix: ssl3_send_server_key_exchange was not restartable 16758 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16759 this the server could overwrite ephemeral keys that the client 16760 has already seen). 16761 16762 *Bodo Moeller* 16763 16764 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16765 using 50 iterations of the Rabin-Miller test. 16766 16767 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16768 iterations of the Rabin-Miller test as required by the appendix 16769 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16770 As BN_is_prime_fasttest includes trial division, DSA parameter 16771 generation becomes much faster. 16772 16773 This implies a change for the callback functions in DSA_is_prime 16774 and DSA_generate_parameters: The callback function is called once 16775 for each positive witness in the Rabin-Miller test, not just 16776 occasionally in the inner loop; and the parameters to the 16777 callback function now provide an iteration count for the outer 16778 loop rather than for the current invocation of the inner loop. 16779 DSA_generate_parameters additionally can call the callback 16780 function with an 'iteration count' of -1, meaning that a 16781 candidate has passed the trial division test (when q is generated 16782 from an application-provided seed, trial division is skipped). 16783 16784 *Bodo Moeller* 16785 16786 * New function BN_is_prime_fasttest that optionally does trial 16787 division before starting the Rabin-Miller test and has 16788 an additional BN_CTX * argument (whereas BN_is_prime always 16789 has to allocate at least one BN_CTX). 16790 'callback(1, -1, cb_arg)' is called when a number has passed the 16791 trial division stage. 16792 16793 *Bodo Moeller* 16794 16795 * Fix for bug in CRL encoding. The validity dates weren't being handled 16796 as ASN1_TIME. 16797 16798 *Steve Henson* 16799 16800 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 16801 16802 *Steve Henson* 16803 16804 * New function BN_pseudo_rand(). 16805 16806 *Ulf Möller* 16807 16808 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 16809 bignum version of BN_from_montgomery() with the working code from 16810 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 16811 the comments. 16812 16813 *Ulf Möller* 16814 16815 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 16816 made it impossible to use the same SSL_SESSION data structure in 16817 SSL2 clients in multiple threads. 16818 16819 *Bodo Moeller* 16820 16821 * The return value of RAND_load_file() no longer counts bytes obtained 16822 by stat(). RAND_load_file(..., -1) is new and uses the complete file 16823 to seed the PRNG (previously an explicit byte count was required). 16824 16825 *Ulf Möller, Bodo Möller* 16826 16827 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 16828 used `char *` instead of `void *` and had casts all over the place. 16829 16830 *Steve Henson* 16831 16832 * Make BN_generate_prime() return NULL on error if ret!=NULL. 16833 16834 *Ulf Möller* 16835 16836 * Retain source code compatibility for BN_prime_checks macro: 16837 BN_is_prime(..., BN_prime_checks, ...) now uses 16838 BN_prime_checks_for_size to determine the appropriate number of 16839 Rabin-Miller iterations. 16840 16841 *Ulf Möller* 16842 16843 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 16844 DH_CHECK_P_NOT_SAFE_PRIME. 16845 (Check if this is true? OpenPGP calls them "strong".) 16846 16847 *Ulf Möller* 16848 16849 * Merge the functionality of "dh" and "gendh" programs into a new program 16850 "dhparam". The old programs are retained for now but will handle DH keys 16851 (instead of parameters) in future. 16852 16853 *Steve Henson* 16854 16855 * Make the ciphers, s_server and s_client programs check the return values 16856 when a new cipher list is set. 16857 16858 *Steve Henson* 16859 16860 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 16861 ciphers. Before when the 56bit ciphers were enabled the sorting was 16862 wrong. 16863 16864 The syntax for the cipher sorting has been extended to support sorting by 16865 cipher-strength (using the strength_bits hard coded in the tables). 16866 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 16867 16868 Fix a bug in the cipher-command parser: when supplying a cipher command 16869 string with an "undefined" symbol (neither command nor alphanumeric 16870 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 16871 an error is flagged. 16872 16873 Due to the strength-sorting extension, the code of the 16874 ssl_create_cipher_list() function was completely rearranged. I hope that 16875 the readability was also increased :-) 16876 16877 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 16878 16879 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 16880 for the first serial number and places 2 in the serial number file. This 16881 avoids problems when the root CA is created with serial number zero and 16882 the first user certificate has the same issuer name and serial number 16883 as the root CA. 16884 16885 *Steve Henson* 16886 16887 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 16888 the new code. Add documentation for this stuff. 16889 16890 *Steve Henson* 16891 16892 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 16893 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 16894 structures and behave in an analogous way to the X509v3 functions: 16895 they shouldn't be called directly but wrapper functions should be used 16896 instead. 16897 16898 So we also now have some wrapper functions that call the X509at functions 16899 when passed certificate requests. (TO DO: similar things can be done with 16900 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 16901 things. Some of these need some d2i or i2d and print functionality 16902 because they handle more complex structures.) 16903 16904 *Steve Henson* 16905 16906 * Add missing #ifndefs that caused missing symbols when building libssl 16907 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 16908 NO_RSA in `ssl/s2*.c`. 16909 16910 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 16911 16912 * Precautions against using the PRNG uninitialized: RAND_bytes() now 16913 has a return value which indicates the quality of the random data 16914 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 16915 error queue. New function RAND_pseudo_bytes() generates output that is 16916 guaranteed to be unique but not unpredictable. RAND_add is like 16917 RAND_seed, but takes an extra argument for an entropy estimate 16918 (RAND_seed always assumes full entropy). 16919 16920 *Ulf Möller* 16921 16922 * Do more iterations of Rabin-Miller probable prime test (specifically, 16923 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 16924 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 16925 in crypto/bn/bn_prime.c for the complete table). This guarantees a 16926 false-positive rate of at most 2^-80 for random input. 16927 16928 *Bodo Moeller* 16929 16930 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 16931 16932 *Bodo Moeller* 16933 16934 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 16935 in the 0.9.5 release), this returns the chain 16936 from an X509_CTX structure with a dup of the stack and all 16937 the X509 reference counts upped: so the stack will exist 16938 after X509_CTX_cleanup() has been called. Modify pkcs12.c 16939 to use this. 16940 16941 Also make SSL_SESSION_print() print out the verify return 16942 code. 16943 16944 *Steve Henson* 16945 16946 * Add manpage for the pkcs12 command. Also change the default 16947 behaviour so MAC iteration counts are used unless the new 16948 -nomaciter option is used. This improves file security and 16949 only older versions of MSIE (4.0 for example) need it. 16950 16951 *Steve Henson* 16952 16953 * Honor the no-xxx Configure options when creating .DEF files. 16954 16955 *Ulf Möller* 16956 16957 * Add PKCS#10 attributes to field table: challengePassword, 16958 unstructuredName and unstructuredAddress. These are taken from 16959 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 16960 international characters are used. 16961 16962 More changes to X509_ATTRIBUTE code: allow the setting of types 16963 based on strings. Remove the 'loc' parameter when adding 16964 attributes because these will be a SET OF encoding which is sorted 16965 in ASN1 order. 16966 16967 *Steve Henson* 16968 16969 * Initial changes to the 'req' utility to allow request generation 16970 automation. This will allow an application to just generate a template 16971 file containing all the field values and have req construct the 16972 request. 16973 16974 Initial support for X509_ATTRIBUTE handling. Stacks of these are 16975 used all over the place including certificate requests and PKCS#7 16976 structures. They are currently handled manually where necessary with 16977 some primitive wrappers for PKCS#7. The new functions behave in a 16978 manner analogous to the X509 extension functions: they allow 16979 attributes to be looked up by NID and added. 16980 16981 Later something similar to the X509V3 code would be desirable to 16982 automatically handle the encoding, decoding and printing of the 16983 more complex types. The string types like challengePassword can 16984 be handled by the string table functions. 16985 16986 Also modified the multi byte string table handling. Now there is 16987 a 'global mask' which masks out certain types. The table itself 16988 can use the flag STABLE_NO_MASK to ignore the mask setting: this 16989 is useful when for example there is only one permissible type 16990 (as in countryName) and using the mask might result in no valid 16991 types at all. 16992 16993 *Steve Henson* 16994 16995 * Clean up 'Finished' handling, and add functions SSL_get_finished and 16996 SSL_get_peer_finished to allow applications to obtain the latest 16997 Finished messages sent to the peer or expected from the peer, 16998 respectively. (SSL_get_peer_finished is usually the Finished message 16999 actually received from the peer, otherwise the protocol will be aborted.) 17000 17001 As the Finished message are message digests of the complete handshake 17002 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 17003 be used for external authentication procedures when the authentication 17004 provided by SSL/TLS is not desired or is not enough. 17005 17006 *Bodo Moeller* 17007 17008 * Enhanced support for Alpha Linux is added. Now ./config checks if 17009 the host supports BWX extension and if Compaq C is present on the 17010 $PATH. Just exploiting of the BWX extension results in 20-30% 17011 performance kick for some algorithms, e.g. DES and RC4 to mention 17012 a couple. Compaq C in turn generates ~20% faster code for MD5 and 17013 SHA1. 17014 17015 *Andy Polyakov* 17016 17017 * Add support for MS "fast SGC". This is arguably a violation of the 17018 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 17019 weak crypto and after checking the certificate is SGC a second one 17020 with strong crypto. MS SGC stops the first handshake after receiving 17021 the server certificate message and sends a second client hello. Since 17022 a server will typically do all the time consuming operations before 17023 expecting any further messages from the client (server key exchange 17024 is the most expensive) there is little difference between the two. 17025 17026 To get OpenSSL to support MS SGC we have to permit a second client 17027 hello message after we have sent server done. In addition we have to 17028 reset the MAC if we do get this second client hello. 17029 17030 *Steve Henson* 17031 17032 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 17033 if a DER encoded private key is RSA or DSA traditional format. Changed 17034 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 17035 format DER encoded private key. Newer code should use PKCS#8 format which 17036 has the key type encoded in the ASN1 structure. Added DER private key 17037 support to pkcs8 application. 17038 17039 *Steve Henson* 17040 17041 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 17042 ciphersuites has been selected (as required by the SSL 3/TLS 1 17043 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 17044 is set, we interpret this as a request to violate the specification 17045 (the worst that can happen is a handshake failure, and 'correct' 17046 behaviour would result in a handshake failure anyway). 17047 17048 *Bodo Moeller* 17049 17050 * In SSL_CTX_add_session, take into account that there might be multiple 17051 SSL_SESSION structures with the same session ID (e.g. when two threads 17052 concurrently obtain them from an external cache). 17053 The internal cache can handle only one SSL_SESSION with a given ID, 17054 so if there's a conflict, we now throw out the old one to achieve 17055 consistency. 17056 17057 *Bodo Moeller* 17058 17059 * Add OIDs for idea and blowfish in CBC mode. This will allow both 17060 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 17061 some routines that use cipher OIDs: some ciphers do not have OIDs 17062 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 17063 example. 17064 17065 *Steve Henson* 17066 17067 * Simplify the trust setting structure and code. Now we just have 17068 two sequences of OIDs for trusted and rejected settings. These will 17069 typically have values the same as the extended key usage extension 17070 and any application specific purposes. 17071 17072 The trust checking code now has a default behaviour: it will just 17073 check for an object with the same NID as the passed id. Functions can 17074 be provided to override either the default behaviour or the behaviour 17075 for a given id. SSL client, server and email already have functions 17076 in place for compatibility: they check the NID and also return "trusted" 17077 if the certificate is self signed. 17078 17079 *Steve Henson* 17080 17081 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 17082 traditional format into an EVP_PKEY structure. 17083 17084 *Steve Henson* 17085 17086 * Add a password callback function PEM_cb() which either prompts for 17087 a password if usr_data is NULL or otherwise assumes it is a null 17088 terminated password. Allow passwords to be passed on command line 17089 environment or config files in a few more utilities. 17090 17091 *Steve Henson* 17092 17093 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 17094 keys. Add some short names for PKCS#8 PBE algorithms and allow them 17095 to be specified on the command line for the pkcs8 and pkcs12 utilities. 17096 Update documentation. 17097 17098 *Steve Henson* 17099 17100 * Support for ASN1 "NULL" type. This could be handled before by using 17101 ASN1_TYPE but there wasn't any function that would try to read a NULL 17102 and produce an error if it couldn't. For compatibility we also have 17103 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 17104 don't allocate anything because they don't need to. 17105 17106 *Steve Henson* 17107 17108 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 17109 for details. 17110 17111 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 17112 17113 * Rebuild of the memory allocation routines used by OpenSSL code and 17114 possibly others as well. The purpose is to make an interface that 17115 provide hooks so anyone can build a separate set of allocation and 17116 deallocation routines to be used by OpenSSL, for example memory 17117 pool implementations, or something else, which was previously hard 17118 since Malloc(), Realloc() and Free() were defined as macros having 17119 the values malloc, realloc and free, respectively (except for Win32 17120 compilations). The same is provided for memory debugging code. 17121 OpenSSL already comes with functionality to find memory leaks, but 17122 this gives people a chance to debug other memory problems. 17123 17124 With these changes, a new set of functions and macros have appeared: 17125 17126 CRYPTO_set_mem_debug_functions() [F] 17127 CRYPTO_get_mem_debug_functions() [F] 17128 CRYPTO_dbg_set_options() [F] 17129 CRYPTO_dbg_get_options() [F] 17130 CRYPTO_malloc_debug_init() [M] 17131 17132 The memory debug functions are NULL by default, unless the library 17133 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 17134 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 17135 gives the standard debugging functions that come with OpenSSL) or 17136 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 17137 provided by the library user) must be used. When the standard 17138 debugging functions are used, CRYPTO_dbg_set_options can be used to 17139 request additional information: 17140 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 17141 the CRYPTO_MDEBUG_xxx macro when compiling the library. 17142 17143 Also, things like CRYPTO_set_mem_functions will always give the 17144 expected result (the new set of functions is used for allocation 17145 and deallocation) at all times, regardless of platform and compiler 17146 options. 17147 17148 To finish it up, some functions that were never use in any other 17149 way than through macros have a new API and new semantic: 17150 17151 CRYPTO_dbg_malloc() 17152 CRYPTO_dbg_realloc() 17153 CRYPTO_dbg_free() 17154 17155 All macros of value have retained their old syntax. 17156 17157 *Richard Levitte and Bodo Moeller* 17158 17159 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17160 ordering of SMIMECapabilities wasn't in "strength order" and there 17161 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17162 algorithm. 17163 17164 *Steve Henson* 17165 17166 * Some ASN1 types with illegal zero length encoding (INTEGER, 17167 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17168 17169 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17170 17171 * Merge in my S/MIME library for OpenSSL. This provides a simple 17172 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17173 functionality to handle multipart/signed properly) and a utility 17174 called 'smime' to call all this stuff. This is based on code I 17175 originally wrote for Celo who have kindly allowed it to be 17176 included in OpenSSL. 17177 17178 *Steve Henson* 17179 17180 * Add variants des_set_key_checked and des_set_key_unchecked of 17181 des_set_key (aka des_key_sched). Global variable des_check_key 17182 decides which of these is called by des_set_key; this way 17183 des_check_key behaves as it always did, but applications and 17184 the library itself, which was buggy for des_check_key == 1, 17185 have a cleaner way to pick the version they need. 17186 17187 *Bodo Moeller* 17188 17189 * New function PKCS12_newpass() which changes the password of a 17190 PKCS12 structure. 17191 17192 *Steve Henson* 17193 17194 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17195 dynamic mix. In both cases the ids can be used as an index into the 17196 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17197 functions so they accept a list of the field values and the 17198 application doesn't need to directly manipulate the X509_TRUST 17199 structure. 17200 17201 *Steve Henson* 17202 17203 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17204 need initialising. 17205 17206 *Steve Henson* 17207 17208 * Modify the way the V3 extension code looks up extensions. This now 17209 works in a similar way to the object code: we have some "standard" 17210 extensions in a static table which is searched with OBJ_bsearch() 17211 and the application can add dynamic ones if needed. The file 17212 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17213 updated whenever a new extension is added to the core code and kept 17214 in ext_nid order. There is a simple program 'tabtest.c' which checks 17215 this. New extensions are not added too often so this file can readily 17216 be maintained manually. 17217 17218 There are two big advantages in doing things this way. The extensions 17219 can be looked up immediately and no longer need to be "added" using 17220 X509V3_add_standard_extensions(): this function now does nothing. 17221 Side note: I get *lots* of email saying the extension code doesn't 17222 work because people forget to call this function. 17223 Also no dynamic allocation is done unless new extensions are added: 17224 so if we don't add custom extensions there is no need to call 17225 X509V3_EXT_cleanup(). 17226 17227 *Steve Henson* 17228 17229 * Modify enc utility's salting as follows: make salting the default. Add a 17230 magic header, so unsalted files fail gracefully instead of just decrypting 17231 to garbage. This is because not salting is a big security hole, so people 17232 should be discouraged from doing it. 17233 17234 *Ben Laurie* 17235 17236 * Fixes and enhancements to the 'x509' utility. It allowed a message 17237 digest to be passed on the command line but it only used this 17238 parameter when signing a certificate. Modified so all relevant 17239 operations are affected by the digest parameter including the 17240 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17241 DSA key was used because it didn't fix the digest. 17242 17243 *Steve Henson* 17244 17245 * Initial certificate chain verify code. Currently tests the untrusted 17246 certificates for consistency with the verify purpose (which is set 17247 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17248 17249 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17250 this is because it will reject chains with invalid extensions whereas 17251 every previous version of OpenSSL and SSLeay made no checks at all. 17252 17253 Trust code: checks the root CA for the relevant trust settings. Trust 17254 settings have an initial value consistent with the verify purpose: e.g. 17255 if the verify purpose is for SSL client use it expects the CA to be 17256 trusted for SSL client use. However the default value can be changed to 17257 permit custom trust settings: one example of this would be to only trust 17258 certificates from a specific "secure" set of CAs. 17259 17260 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17261 which should be used for version portability: especially since the 17262 verify structure is likely to change more often now. 17263 17264 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17265 to set them. If not set then assume SSL clients will verify SSL servers 17266 and vice versa. 17267 17268 Two new options to the verify program: -untrusted allows a set of 17269 untrusted certificates to be passed in and -purpose which sets the 17270 intended purpose of the certificate. If a purpose is set then the 17271 new chain verify code is used to check extension consistency. 17272 17273 *Steve Henson* 17274 17275 * Support for the authority information access extension. 17276 17277 *Steve Henson* 17278 17279 * Modify RSA and DSA PEM read routines to transparently handle 17280 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17281 public keys in a format compatible with certificate 17282 SubjectPublicKeyInfo structures. Unfortunately there were already 17283 functions called *_PublicKey_* which used various odd formats so 17284 these are retained for compatibility: however the DSA variants were 17285 never in a public release so they have been deleted. Changed dsa/rsa 17286 utilities to handle the new format: note no releases ever handled public 17287 keys so we should be OK. 17288 17289 The primary motivation for this change is to avoid the same fiasco 17290 that dogs private keys: there are several incompatible private key 17291 formats some of which are standard and some OpenSSL specific and 17292 require various evil hacks to allow partial transparent handling and 17293 even then it doesn't work with DER formats. Given the option anything 17294 other than PKCS#8 should be dumped: but the other formats have to 17295 stay in the name of compatibility. 17296 17297 With public keys and the benefit of hindsight one standard format 17298 is used which works with EVP_PKEY, RSA or DSA structures: though 17299 it clearly returns an error if you try to read the wrong kind of key. 17300 17301 Added a -pubkey option to the 'x509' utility to output the public key. 17302 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17303 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17304 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17305 that do the same as the `EVP_PKEY_assign_*()` except they up the 17306 reference count of the added key (they don't "swallow" the 17307 supplied key). 17308 17309 *Steve Henson* 17310 17311 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17312 CRLs would fail if the file contained no certificates or no CRLs: 17313 added a new function to read in both types and return the number 17314 read: this means that if none are read it will be an error. The 17315 DER versions of the certificate and CRL reader would always fail 17316 because it isn't possible to mix certificates and CRLs in DER format 17317 without choking one or the other routine. Changed this to just read 17318 a certificate: this is the best we can do. Also modified the code 17319 in `apps/verify.c` to take notice of return codes: it was previously 17320 attempting to read in certificates from NULL pointers and ignoring 17321 any errors: this is one reason why the cert and CRL reader seemed 17322 to work. It doesn't check return codes from the default certificate 17323 routines: these may well fail if the certificates aren't installed. 17324 17325 *Steve Henson* 17326 17327 * Code to support otherName option in GeneralName. 17328 17329 *Steve Henson* 17330 17331 * First update to verify code. Change the verify utility 17332 so it warns if it is passed a self signed certificate: 17333 for consistency with the normal behaviour. X509_verify 17334 has been modified to it will now verify a self signed 17335 certificate if *exactly* the same certificate appears 17336 in the store: it was previously impossible to trust a 17337 single self signed certificate. This means that: 17338 openssl verify ss.pem 17339 now gives a warning about a self signed certificate but 17340 openssl verify -CAfile ss.pem ss.pem 17341 is OK. 17342 17343 *Steve Henson* 17344 17345 * For servers, store verify_result in SSL_SESSION data structure 17346 (and add it to external session representation). 17347 This is needed when client certificate verifications fails, 17348 but an application-provided verification callback (set by 17349 SSL_CTX_set_cert_verify_callback) allows accepting the session 17350 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17351 but returns 1): When the session is reused, we have to set 17352 ssl->verify_result to the appropriate error code to avoid 17353 security holes. 17354 17355 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17356 17357 * Fix a bug in the new PKCS#7 code: it didn't consider the 17358 case in PKCS7_dataInit() where the signed PKCS7 structure 17359 didn't contain any existing data because it was being created. 17360 17361 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17362 17363 * Add a salt to the key derivation routines in enc.c. This 17364 forms the first 8 bytes of the encrypted file. Also add a 17365 -S option to allow a salt to be input on the command line. 17366 17367 *Steve Henson* 17368 17369 * New function X509_cmp(). Oddly enough there wasn't a function 17370 to compare two certificates. We do this by working out the SHA1 17371 hash and comparing that. X509_cmp() will be needed by the trust 17372 code. 17373 17374 *Steve Henson* 17375 17376 * SSL_get1_session() is like SSL_get_session(), but increments 17377 the reference count in the SSL_SESSION returned. 17378 17379 *Geoff Thorpe <geoff@eu.c2.net>* 17380 17381 * Fix for 'req': it was adding a null to request attributes. 17382 Also change the X509_LOOKUP and X509_INFO code to handle 17383 certificate auxiliary information. 17384 17385 *Steve Henson* 17386 17387 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17388 the 'enc' command. 17389 17390 *Steve Henson* 17391 17392 * Add the possibility to add extra information to the memory leak 17393 detecting output, to form tracebacks, showing from where each 17394 allocation was originated: CRYPTO_push_info("constant string") adds 17395 the string plus current file name and line number to a per-thread 17396 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17397 is like calling CYRPTO_pop_info() until the stack is empty. 17398 Also updated memory leak detection code to be multi-thread-safe. 17399 17400 *Richard Levitte* 17401 17402 * Add options -text and -noout to pkcs7 utility and delete the 17403 encryption options which never did anything. Update docs. 17404 17405 *Steve Henson* 17406 17407 * Add options to some of the utilities to allow the pass phrase 17408 to be included on either the command line (not recommended on 17409 OSes like Unix) or read from the environment. Update the 17410 manpages and fix a few bugs. 17411 17412 *Steve Henson* 17413 17414 * Add a few manpages for some of the openssl commands. 17415 17416 *Steve Henson* 17417 17418 * Fix the -revoke option in ca. It was freeing up memory twice, 17419 leaking and not finding already revoked certificates. 17420 17421 *Steve Henson* 17422 17423 * Extensive changes to support certificate auxiliary information. 17424 This involves the use of X509_CERT_AUX structure and X509_AUX 17425 functions. An X509_AUX function such as PEM_read_X509_AUX() 17426 can still read in a certificate file in the usual way but it 17427 will also read in any additional "auxiliary information". By 17428 doing things this way a fair degree of compatibility can be 17429 retained: existing certificates can have this information added 17430 using the new 'x509' options. 17431 17432 Current auxiliary information includes an "alias" and some trust 17433 settings. The trust settings will ultimately be used in enhanced 17434 certificate chain verification routines: currently a certificate 17435 can only be trusted if it is self signed and then it is trusted 17436 for all purposes. 17437 17438 *Steve Henson* 17439 17440 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17441 The problem was that one of the replacement routines had not been working 17442 since SSLeay releases. For now the offending routine has been replaced 17443 with non-optimised assembler. Even so, this now gives around 95% 17444 performance improvement for 1024 bit RSA signs. 17445 17446 *Mark Cox* 17447 17448 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17449 handling. Most clients have the effective key size in bits equal to 17450 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17451 A few however don't do this and instead use the size of the decrypted key 17452 to determine the RC2 key length and the AlgorithmIdentifier to determine 17453 the effective key length. In this case the effective key length can still 17454 be 40 bits but the key length can be 168 bits for example. This is fixed 17455 by manually forcing an RC2 key into the EVP_PKEY structure because the 17456 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17457 the key length and effective key length are equal. 17458 17459 *Steve Henson* 17460 17461 * Add a bunch of functions that should simplify the creation of 17462 X509_NAME structures. Now you should be able to do: 17463 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17464 and have it automatically work out the correct field type and fill in 17465 the structures. The more adventurous can try: 17466 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17467 and it will (hopefully) work out the correct multibyte encoding. 17468 17469 *Steve Henson* 17470 17471 * Change the 'req' utility to use the new field handling and multibyte 17472 copy routines. Before the DN field creation was handled in an ad hoc 17473 way in req, ca, and x509 which was rather broken and didn't support 17474 BMPStrings or UTF8Strings. Since some software doesn't implement 17475 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17476 using the dirstring_type option. See the new comment in the default 17477 openssl.cnf for more info. 17478 17479 *Steve Henson* 17480 17481 * Make crypto/rand/md_rand.c more robust: 17482 - Assure unique random numbers after fork(). 17483 - Make sure that concurrent threads access the global counter and 17484 md serializably so that we never lose entropy in them 17485 or use exactly the same state in multiple threads. 17486 Access to the large state is not always serializable because 17487 the additional locking could be a performance killer, and 17488 md should be large enough anyway. 17489 17490 *Bodo Moeller* 17491 17492 * New file `apps/app_rand.c` with commonly needed functionality 17493 for handling the random seed file. 17494 17495 Use the random seed file in some applications that previously did not: 17496 ca, 17497 dsaparam -genkey (which also ignored its '-rand' option), 17498 s_client, 17499 s_server, 17500 x509 (when signing). 17501 Except on systems with /dev/urandom, it is crucial to have a random 17502 seed file at least for key creation, DSA signing, and for DH exchanges; 17503 for RSA signatures we could do without one. 17504 17505 gendh and gendsa (unlike genrsa) used to read only the first byte 17506 of each file listed in the '-rand' option. The function as previously 17507 found in genrsa is now in app_rand.c and is used by all programs 17508 that support '-rand'. 17509 17510 *Bodo Moeller* 17511 17512 * In RAND_write_file, use mode 0600 for creating files; 17513 don't just chmod when it may be too late. 17514 17515 *Bodo Moeller* 17516 17517 * Report an error from X509_STORE_load_locations 17518 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17519 17520 *Bill Perry* 17521 17522 * New function ASN1_mbstring_copy() this copies a string in either 17523 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17524 into an ASN1_STRING type. A mask of permissible types is passed 17525 and it chooses the "minimal" type to use or an error if not type 17526 is suitable. 17527 17528 *Steve Henson* 17529 17530 * Add function equivalents to the various macros in asn1.h. The old 17531 macros are retained with an `M_` prefix. Code inside the library can 17532 use the `M_` macros. External code (including the openssl utility) 17533 should *NOT* in order to be "shared library friendly". 17534 17535 *Steve Henson* 17536 17537 * Add various functions that can check a certificate's extensions 17538 to see if it usable for various purposes such as SSL client, 17539 server or S/MIME and CAs of these types. This is currently 17540 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17541 verification. Also added a -purpose flag to x509 utility to 17542 print out all the purposes. 17543 17544 *Steve Henson* 17545 17546 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17547 functions. 17548 17549 *Steve Henson* 17550 17551 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17552 for, obtain and decode and extension and obtain its critical flag. 17553 This allows all the necessary extension code to be handled in a 17554 single function call. 17555 17556 *Steve Henson* 17557 17558 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17559 platforms. See crypto/rc4/rc4_enc.c for further details. 17560 17561 *Andy Polyakov* 17562 17563 * New -noout option to asn1parse. This causes no output to be produced 17564 its main use is when combined with -strparse and -out to extract data 17565 from a file (which may not be in ASN.1 format). 17566 17567 *Steve Henson* 17568 17569 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17570 when producing the local key id. 17571 17572 *Richard Levitte <levitte@stacken.kth.se>* 17573 17574 * New option -dhparam in s_server. This allows a DH parameter file to be 17575 stated explicitly. If it is not stated then it tries the first server 17576 certificate file. The previous behaviour hard coded the filename 17577 "server.pem". 17578 17579 *Steve Henson* 17580 17581 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17582 a public key to be input or output. For example: 17583 openssl rsa -in key.pem -pubout -out pubkey.pem 17584 Also added necessary DSA public key functions to handle this. 17585 17586 *Steve Henson* 17587 17588 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17589 in the message. This was handled by allowing 17590 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17591 17592 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17593 17594 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17595 to the end of the strings whereas this didn't. This would cause problems 17596 if strings read with d2i_ASN1_bytes() were later modified. 17597 17598 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17599 17600 * Fix for base64 decode bug. When a base64 bio reads only one line of 17601 data and it contains EOF it will end up returning an error. This is 17602 caused by input 46 bytes long. The cause is due to the way base64 17603 BIOs find the start of base64 encoded data. They do this by trying a 17604 trial decode on each line until they find one that works. When they 17605 do a flag is set and it starts again knowing it can pass all the 17606 data directly through the decoder. Unfortunately it doesn't reset 17607 the context it uses. This means that if EOF is reached an attempt 17608 is made to pass two EOFs through the context and this causes the 17609 resulting error. This can also cause other problems as well. As is 17610 usual with these problems it takes *ages* to find and the fix is 17611 trivial: move one line. 17612 17613 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17614 17615 * Ugly workaround to get s_client and s_server working under Windows. The 17616 old code wouldn't work because it needed to select() on sockets and the 17617 tty (for keypresses and to see if data could be written). Win32 only 17618 supports select() on sockets so we select() with a 1s timeout on the 17619 sockets and then see if any characters are waiting to be read, if none 17620 are present then we retry, we also assume we can always write data to 17621 the tty. This isn't nice because the code then blocks until we've 17622 received a complete line of data and it is effectively polling the 17623 keyboard at 1s intervals: however it's quite a bit better than not 17624 working at all :-) A dedicated Windows application might handle this 17625 with an event loop for example. 17626 17627 *Steve Henson* 17628 17629 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17630 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17631 will be called when RSA_sign() and RSA_verify() are used. This is useful 17632 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17633 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17634 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17635 This necessitated the support of an extra signature type NID_md5_sha1 17636 for SSL signatures and modifications to the SSL library to use it instead 17637 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17638 17639 *Steve Henson* 17640 17641 * Add new -verify -CAfile and -CApath options to the crl program, these 17642 will lookup a CRL issuers certificate and verify the signature in a 17643 similar way to the verify program. Tidy up the crl program so it 17644 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17645 less strict. It will now permit CRL extensions even if it is not 17646 a V2 CRL: this will allow it to tolerate some broken CRLs. 17647 17648 *Steve Henson* 17649 17650 * Initialize all non-automatic variables each time one of the openssl 17651 sub-programs is started (this is necessary as they may be started 17652 multiple times from the "OpenSSL>" prompt). 17653 17654 *Lennart Bang, Bodo Moeller* 17655 17656 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17657 removing all other RSA functionality (this is what NO_RSA does). This 17658 is so (for example) those in the US can disable those operations covered 17659 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17660 key generation. 17661 17662 *Steve Henson* 17663 17664 * Non-copying interface to BIO pairs. 17665 (still largely untested) 17666 17667 *Bodo Moeller* 17668 17669 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17670 ASCII string. This was handled independently in various places before. 17671 17672 *Steve Henson* 17673 17674 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17675 UTF8 strings a character at a time. 17676 17677 *Steve Henson* 17678 17679 * Use client_version from client hello to select the protocol 17680 (s23_srvr.c) and for RSA client key exchange verification 17681 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17682 17683 *Bodo Moeller* 17684 17685 * Add various utility functions to handle SPKACs, these were previously 17686 handled by poking round in the structure internals. Added new function 17687 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17688 print, verify and generate SPKACs. Based on an original idea from 17689 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17690 17691 *Steve Henson* 17692 17693 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17694 17695 *Andy Polyakov* 17696 17697 * Allow the config file extension section to be overwritten on the 17698 command line. Based on an original idea from Massimiliano Pala 17699 <madwolf@comune.modena.it>. The new option is called -extensions 17700 and can be applied to ca, req and x509. Also -reqexts to override 17701 the request extensions in req and -crlexts to override the crl extensions 17702 in ca. 17703 17704 *Steve Henson* 17705 17706 * Add new feature to the SPKAC handling in ca. Now you can include 17707 the same field multiple times by preceding it by "XXXX." for example: 17708 1.OU="Unit name 1" 17709 2.OU="Unit name 2" 17710 this is the same syntax as used in the req config file. 17711 17712 *Steve Henson* 17713 17714 * Allow certificate extensions to be added to certificate requests. These 17715 are specified in a 'req_extensions' option of the req section of the 17716 config file. They can be printed out with the -text option to req but 17717 are otherwise ignored at present. 17718 17719 *Steve Henson* 17720 17721 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17722 data read consists of only the final block it would not decrypted because 17723 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17724 A misplaced 'break' also meant the decrypted final block might not be 17725 copied until the next read. 17726 17727 *Steve Henson* 17728 17729 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17730 a few extra parameters to the DH structure: these will be useful if 17731 for example we want the value of 'q' or implement X9.42 DH. 17732 17733 *Steve Henson* 17734 17735 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17736 provides hooks that allow the default DSA functions or functions on a 17737 "per key" basis to be replaced. This allows hardware acceleration and 17738 hardware key storage to be handled without major modification to the 17739 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17740 associated functions. 17741 17742 *Steve Henson* 17743 17744 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17745 as "read only": it can't be written to and the buffer it points to will 17746 not be freed. Reading from a read only BIO is much more efficient than 17747 a normal memory BIO. This was added because there are several times when 17748 an area of memory needs to be read from a BIO. The previous method was 17749 to create a memory BIO and write the data to it, this results in two 17750 copies of the data and an O(n^2) reading algorithm. There is a new 17751 function BIO_new_mem_buf() which creates a read only memory BIO from 17752 an area of memory. Also modified the PKCS#7 routines to use read only 17753 memory BIOs. 17754 17755 *Steve Henson* 17756 17757 * Bugfix: ssl23_get_client_hello did not work properly when called in 17758 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17759 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17760 but a retry condition occurred while trying to read the rest. 17761 17762 *Bodo Moeller* 17763 17764 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17765 NID_pkcs7_encrypted by default: this was wrong since this should almost 17766 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17767 the encrypted data type: this is a more sensible place to put it and it 17768 allows the PKCS#12 code to be tidied up that duplicated this 17769 functionality. 17770 17771 *Steve Henson* 17772 17773 * Changed obj_dat.pl script so it takes its input and output files on 17774 the command line. This should avoid shell escape redirection problems 17775 under Win32. 17776 17777 *Steve Henson* 17778 17779 * Initial support for certificate extension requests, these are included 17780 in things like Xenroll certificate requests. Included functions to allow 17781 extensions to be obtained and added. 17782 17783 *Steve Henson* 17784 17785 * -crlf option to s_client and s_server for sending newlines as 17786 CRLF (as required by many protocols). 17787 17788 *Bodo Moeller* 17789 17790### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 17791 17792 * Install libRSAglue.a when OpenSSL is built with RSAref. 17793 17794 *Ralf S. Engelschall* 17795 17796 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 17797 17798 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 17799 17800 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 17801 program. 17802 17803 *Steve Henson* 17804 17805 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 17806 DH parameters/keys (q is lost during that conversion, but the resulting 17807 DH parameters contain its length). 17808 17809 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 17810 much faster than DH_generate_parameters (which creates parameters 17811 where `p = 2*q + 1`), and also the smaller q makes DH computations 17812 much more efficient (160-bit exponentiation instead of 1024-bit 17813 exponentiation); so this provides a convenient way to support DHE 17814 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 17815 utter importance to use 17816 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17817 or 17818 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17819 when such DH parameters are used, because otherwise small subgroup 17820 attacks may become possible! 17821 17822 *Bodo Moeller* 17823 17824 * Avoid memory leak in i2d_DHparams. 17825 17826 *Bodo Moeller* 17827 17828 * Allow the -k option to be used more than once in the enc program: 17829 this allows the same encrypted message to be read by multiple recipients. 17830 17831 *Steve Henson* 17832 17833 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 17834 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 17835 it will always use the numerical form of the OID, even if it has a short 17836 or long name. 17837 17838 *Steve Henson* 17839 17840 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 17841 method only got called if p,q,dmp1,dmq1,iqmp components were present, 17842 otherwise bn_mod_exp was called. In the case of hardware keys for example 17843 no private key components need be present and it might store extra data 17844 in the RSA structure, which cannot be accessed from bn_mod_exp. 17845 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 17846 private key operations. 17847 17848 *Steve Henson* 17849 17850 * Added support for SPARC Linux. 17851 17852 *Andy Polyakov* 17853 17854 * pem_password_cb function type incompatibly changed from 17855 typedef int pem_password_cb(char *buf, int size, int rwflag); 17856 to 17857 ....(char *buf, int size, int rwflag, void *userdata); 17858 so that applications can pass data to their callbacks: 17859 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 17860 additional void * argument, which is just handed through whenever 17861 the password callback is called. 17862 17863 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 17864 17865 New function SSL_CTX_set_default_passwd_cb_userdata. 17866 17867 Compatibility note: As many C implementations push function arguments 17868 onto the stack in reverse order, the new library version is likely to 17869 interoperate with programs that have been compiled with the old 17870 pem_password_cb definition (PEM_whatever takes some data that 17871 happens to be on the stack as its last argument, and the callback 17872 just ignores this garbage); but there is no guarantee whatsoever that 17873 this will work. 17874 17875 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 17876 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 17877 problems not only on Windows, but also on some Unix platforms. 17878 To avoid problematic command lines, these definitions are now in an 17879 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 17880 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 17881 17882 *Bodo Moeller* 17883 17884 * MIPS III/IV assembler module is reimplemented. 17885 17886 *Andy Polyakov* 17887 17888 * More DES library cleanups: remove references to srand/rand and 17889 delete an unused file. 17890 17891 *Ulf Möller* 17892 17893 * Add support for the free Netwide assembler (NASM) under Win32, 17894 since not many people have MASM (ml) and it can be hard to obtain. 17895 This is currently experimental but it seems to work OK and pass all 17896 the tests. Check out INSTALL.W32 for info. 17897 17898 *Steve Henson* 17899 17900 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 17901 without temporary keys kept an extra copy of the server key, 17902 and connections with temporary keys did not free everything in case 17903 of an error. 17904 17905 *Bodo Moeller* 17906 17907 * New function RSA_check_key and new openssl rsa option -check 17908 for verifying the consistency of RSA keys. 17909 17910 *Ulf Moeller, Bodo Moeller* 17911 17912 * Various changes to make Win32 compile work: 17913 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 17914 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 17915 comparison" warnings. 17916 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 17917 17918 *Steve Henson* 17919 17920 * Add a debugging option to PKCS#5 v2 key generation function: when 17921 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 17922 derived keys are printed to stderr. 17923 17924 *Steve Henson* 17925 17926 * Copy the flags in ASN1_STRING_dup(). 17927 17928 *Roman E. Pavlov <pre@mo.msk.ru>* 17929 17930 * The x509 application mishandled signing requests containing DSA 17931 keys when the signing key was also DSA and the parameters didn't match. 17932 17933 It was supposed to omit the parameters when they matched the signing key: 17934 the verifying software was then supposed to automatically use the CA's 17935 parameters if they were absent from the end user certificate. 17936 17937 Omitting parameters is no longer recommended. The test was also 17938 the wrong way round! This was probably due to unusual behaviour in 17939 EVP_cmp_parameters() which returns 1 if the parameters match. 17940 This meant that parameters were omitted when they *didn't* match and 17941 the certificate was useless. Certificates signed with 'ca' didn't have 17942 this bug. 17943 17944 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 17945 17946 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 17947 The interface is as follows: 17948 Applications can use 17949 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 17950 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 17951 "off" is now the default. 17952 The library internally uses 17953 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 17954 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 17955 to disable memory-checking temporarily. 17956 17957 Some inconsistent states that previously were possible (and were 17958 even the default) are now avoided. 17959 17960 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 17961 with each memory chunk allocated; this is occasionally more helpful 17962 than just having a counter. 17963 17964 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 17965 17966 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 17967 extensions. 17968 17969 *Bodo Moeller* 17970 17971 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 17972 which largely parallels "options", but is for changing API behaviour, 17973 whereas "options" are about protocol behaviour. 17974 Initial "mode" flags are: 17975 17976 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 17977 a single record has been written. 17978 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 17979 retries use the same buffer location. 17980 (But all of the contents must be 17981 copied!) 17982 17983 *Bodo Moeller* 17984 17985 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 17986 worked. 17987 17988 * Fix problems with no-hmac etc. 17989 17990 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 17991 17992 * New functions RSA_get_default_method(), RSA_set_method() and 17993 RSA_get_method(). These allows replacement of RSA_METHODs without having 17994 to mess around with the internals of an RSA structure. 17995 17996 *Steve Henson* 17997 17998 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 17999 Also really enable memory leak checks in openssl.c and in some 18000 test programs. 18001 18002 *Chad C. Mulligan, Bodo Moeller* 18003 18004 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 18005 up the length of negative integers. This has now been simplified to just 18006 store the length when it is first determined and use it later, rather 18007 than trying to keep track of where data is copied and updating it to 18008 point to the end. 18009 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 18010 18011 * Add a new function PKCS7_signatureVerify. This allows the verification 18012 of a PKCS#7 signature but with the signing certificate passed to the 18013 function itself. This contrasts with PKCS7_dataVerify which assumes the 18014 certificate is present in the PKCS#7 structure. This isn't always the 18015 case: certificates can be omitted from a PKCS#7 structure and be 18016 distributed by "out of band" means (such as a certificate database). 18017 18018 *Steve Henson* 18019 18020 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 18021 function prototypes in pem.h, also change util/mkdef.pl to add the 18022 necessary function names. 18023 18024 *Steve Henson* 18025 18026 * mk1mf.pl (used by Windows builds) did not properly read the 18027 options set by Configure in the top level Makefile, and Configure 18028 was not even able to write more than one option correctly. 18029 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 18030 18031 *Bodo Moeller* 18032 18033 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 18034 file to be loaded from a BIO or FILE pointer. The BIO version will 18035 for example allow memory BIOs to contain config info. 18036 18037 *Steve Henson* 18038 18039 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 18040 Whoever hopes to achieve shared-library compatibility across versions 18041 must use this, not the compile-time macro. 18042 (Exercise 0.9.4: Which is the minimum library version required by 18043 such programs?) 18044 Note: All this applies only to multi-threaded programs, others don't 18045 need locks. 18046 18047 *Bodo Moeller* 18048 18049 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 18050 through a BIO pair triggered the default case, i.e. 18051 SSLerr(...,SSL_R_UNKNOWN_STATE). 18052 18053 *Bodo Moeller* 18054 18055 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 18056 can use the SSL library even if none of the specific BIOs is 18057 appropriate. 18058 18059 *Bodo Moeller* 18060 18061 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 18062 for the encoded length. 18063 18064 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 18065 18066 * Add initial documentation of the X509V3 functions. 18067 18068 *Steve Henson* 18069 18070 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 18071 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 18072 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 18073 secure PKCS#8 private key format with a high iteration count. 18074 18075 *Steve Henson* 18076 18077 * Fix determination of Perl interpreter: A perl or perl5 18078 *directory* in $PATH was also accepted as the interpreter. 18079 18080 *Ralf S. Engelschall* 18081 18082 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 18083 wrong with it but it was very old and did things like calling 18084 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 18085 unusual formatting. 18086 18087 *Steve Henson* 18088 18089 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 18090 to use the new extension code. 18091 18092 *Steve Henson* 18093 18094 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 18095 with macros. This should make it easier to change their form, add extra 18096 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 18097 constant. 18098 18099 *Steve Henson* 18100 18101 * Add to configuration table a new entry that can specify an alternative 18102 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 18103 according to Mark Crispin <MRC@Panda.COM>. 18104 18105 *Bodo Moeller* 18106 18107 * DES CBC did not update the IV. Weird. 18108 18109 *Ben Laurie* 18110lse 18111 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 18112 Changing the behaviour of the former might break existing programs -- 18113 where IV updating is needed, des_ncbc_encrypt can be used. 18114ndif 18115 18116 * When bntest is run from "make test" it drives bc to check its 18117 calculations, as well as internally checking them. If an internal check 18118 fails, it needs to cause bc to give a non-zero result or make test carries 18119 on without noticing the failure. Fixed. 18120 18121 *Ben Laurie* 18122 18123 * DES library cleanups. 18124 18125 *Ulf Möller* 18126 18127 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 18128 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 18129 ciphers. NOTE: although the key derivation function has been verified 18130 against some published test vectors it has not been extensively tested 18131 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 18132 of v2.0. 18133 18134 *Steve Henson* 18135 18136 * Instead of "mkdir -p", which is not fully portable, use new 18137 Perl script "util/mkdir-p.pl". 18138 18139 *Bodo Moeller* 18140 18141 * Rewrite the way password based encryption (PBE) is handled. It used to 18142 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 18143 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 18144 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 18145 the 'parameter' field of the AlgorithmIdentifier is passed to the 18146 underlying key generation function so it must do its own ASN1 parsing. 18147 This has also changed the EVP_PBE_CipherInit() function which now has a 18148 'parameter' argument instead of literal salt and iteration count values 18149 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 18150 18151 *Steve Henson* 18152 18153 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18154 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18155 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18156 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18157 value was just used as a "magic string" and not used directly its 18158 value doesn't matter. 18159 18160 *Steve Henson* 18161 18162 * Introduce some semblance of const correctness to BN. Shame C doesn't 18163 support mutable. 18164 18165 *Ben Laurie* 18166 18167 * "linux-sparc64" configuration (ultrapenguin). 18168 18169 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18170 "linux-sparc" configuration. 18171 18172 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18173 18174 * config now generates no-xxx options for missing ciphers. 18175 18176 *Ulf Möller* 18177 18178 * Support the EBCDIC character set (work in progress). 18179 File ebcdic.c not yet included because it has a different license. 18180 18181 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18182 18183 * Support BS2000/OSD-POSIX. 18184 18185 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18186 18187 * Make callbacks for key generation use `void *` instead of `char *`. 18188 18189 *Ben Laurie* 18190 18191 * Make S/MIME samples compile (not yet tested). 18192 18193 *Ben Laurie* 18194 18195 * Additional typesafe stacks. 18196 18197 *Ben Laurie* 18198 18199 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18200 18201 *Bodo Moeller* 18202 18203### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18204 18205 * New configuration variant "sco5-gcc". 18206 18207 * Updated some demos. 18208 18209 *Sean O Riordain, Wade Scholine* 18210 18211 * Add missing BIO_free at exit of pkcs12 application. 18212 18213 *Wu Zhigang* 18214 18215 * Fix memory leak in conf.c. 18216 18217 *Steve Henson* 18218 18219 * Updates for Win32 to assembler version of MD5. 18220 18221 *Steve Henson* 18222 18223 * Set #! path to perl in `apps/der_chop` to where we found it 18224 instead of using a fixed path. 18225 18226 *Bodo Moeller* 18227 18228 * SHA library changes for irix64-mips4-cc. 18229 18230 *Andy Polyakov* 18231 18232 * Improvements for VMS support. 18233 18234 *Richard Levitte* 18235 18236### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18237 18238 * Bignum library bug fix. IRIX 6 passes "make test" now! 18239 This also avoids the problems with SC4.2 and unpatched SC5. 18240 18241 *Andy Polyakov <appro@fy.chalmers.se>* 18242 18243 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18244 These are required because of the typesafe stack would otherwise break 18245 existing code. If old code used a structure member which used to be STACK 18246 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18247 sk_num or sk_value it would produce an error because the num, data members 18248 are not present in STACK_OF. Now it just produces a warning. sk_set 18249 replaces the old method of assigning a value to sk_value 18250 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18251 that does this will no longer work (and should use sk_set instead) but 18252 this could be regarded as a "questionable" behaviour anyway. 18253 18254 *Steve Henson* 18255 18256 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18257 correctly handle encrypted S/MIME data. 18258 18259 *Steve Henson* 18260 18261 * Change type of various DES function arguments from des_cblock 18262 (which means, in function argument declarations, pointer to char) 18263 to des_cblock * (meaning pointer to array with 8 char elements), 18264 which allows the compiler to do more typechecking; it was like 18265 that back in SSLeay, but with lots of ugly casts. 18266 18267 Introduce new type const_des_cblock. 18268 18269 *Bodo Moeller* 18270 18271 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18272 problems: find RecipientInfo structure that matches recipient certificate 18273 and initialise the ASN1 structures properly based on passed cipher. 18274 18275 *Steve Henson* 18276 18277 * Belatedly make the BN tests actually check the results. 18278 18279 *Ben Laurie* 18280 18281 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18282 to and from BNs: it was completely broken. New compilation option 18283 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18284 key elements as negative integers. 18285 18286 *Steve Henson* 18287 18288 * Reorganize and speed up MD5. 18289 18290 *Andy Polyakov <appro@fy.chalmers.se>* 18291 18292 * VMS support. 18293 18294 *Richard Levitte <richard@levitte.org>* 18295 18296 * New option -out to asn1parse to allow the parsed structure to be 18297 output to a file. This is most useful when combined with the -strparse 18298 option to examine the output of things like OCTET STRINGS. 18299 18300 *Steve Henson* 18301 18302 * Make SSL library a little more fool-proof by not requiring any longer 18303 that `SSL_set_{accept,connect}_state` be called before 18304 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18305 in many applications because usually everything *appeared* to work as 18306 intended anyway -- now it really works as intended). 18307 18308 *Bodo Moeller* 18309 18310 * Move openssl.cnf out of lib/. 18311 18312 *Ulf Möller* 18313 18314 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18315 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18316 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18317 18318 *Ralf S. Engelschall* 18319 18320 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18321 handle PKCS#7 enveloped data properly. 18322 18323 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18324 18325 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18326 copying pointers. The cert_st handling is changed by this in 18327 various ways (and thus what used to be known as ctx->default_cert 18328 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18329 any longer when s->cert does not give us what we need). 18330 ssl_cert_instantiate becomes obsolete by this change. 18331 As soon as we've got the new code right (possibly it already is?), 18332 we have solved a couple of bugs of the earlier code where s->cert 18333 was used as if it could not have been shared with other SSL structures. 18334 18335 Note that using the SSL API in certain dirty ways now will result 18336 in different behaviour than observed with earlier library versions: 18337 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18338 does not influence s as it used to. 18339 18340 In order to clean up things more thoroughly, inside SSL_SESSION 18341 we don't use CERT any longer, but a new structure SESS_CERT 18342 that holds per-session data (if available); currently, this is 18343 the peer's certificate chain and, for clients, the server's certificate 18344 and temporary key. CERT holds only those values that can have 18345 meaningful defaults in an SSL_CTX. 18346 18347 *Bodo Moeller* 18348 18349 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18350 from the internal representation. Various PKCS#7 fixes: remove some 18351 evil casts and set the enc_dig_alg field properly based on the signing 18352 key type. 18353 18354 *Steve Henson* 18355 18356 * Allow PKCS#12 password to be set from the command line or the 18357 environment. Let 'ca' get its config file name from the environment 18358 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18359 and 'x509'). 18360 18361 *Steve Henson* 18362 18363 * Allow certificate policies extension to use an IA5STRING for the 18364 organization field. This is contrary to the PKIX definition but 18365 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18366 extension option. 18367 18368 *Steve Henson* 18369 18370 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18371 without disallowing inline assembler and the like for non-pedantic builds. 18372 18373 *Ben Laurie* 18374 18375 * Support Borland C++ builder. 18376 18377 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18378 18379 * Support Mingw32. 18380 18381 *Ulf Möller* 18382 18383 * SHA-1 cleanups and performance enhancements. 18384 18385 *Andy Polyakov <appro@fy.chalmers.se>* 18386 18387 * Sparc v8plus assembler for the bignum library. 18388 18389 *Andy Polyakov <appro@fy.chalmers.se>* 18390 18391 * Accept any -xxx and +xxx compiler options in Configure. 18392 18393 *Ulf Möller* 18394 18395 * Update HPUX configuration. 18396 18397 *Anonymous* 18398 18399 * Add missing `sk_<type>_unshift()` function to safestack.h 18400 18401 *Ralf S. Engelschall* 18402 18403 * New function SSL_CTX_use_certificate_chain_file that sets the 18404 "extra_cert"s in addition to the certificate. (This makes sense 18405 only for "PEM" format files, as chains as a whole are not 18406 DER-encoded.) 18407 18408 *Bodo Moeller* 18409 18410 * Support verify_depth from the SSL API. 18411 x509_vfy.c had what can be considered an off-by-one-error: 18412 Its depth (which was not part of the external interface) 18413 was actually counting the number of certificates in a chain; 18414 now it really counts the depth. 18415 18416 *Bodo Moeller* 18417 18418 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18419 instead of X509err, which often resulted in confusing error 18420 messages since the error codes are not globally unique 18421 (e.g. an alleged error in ssl3_accept when a certificate 18422 didn't match the private key). 18423 18424 * New function SSL_CTX_set_session_id_context that allows to set a default 18425 value (so that you don't need SSL_set_session_id_context for each 18426 connection using the SSL_CTX). 18427 18428 *Bodo Moeller* 18429 18430 * OAEP decoding bug fix. 18431 18432 *Ulf Möller* 18433 18434 * Support INSTALL_PREFIX for package builders, as proposed by 18435 David Harris. 18436 18437 *Bodo Moeller* 18438 18439 * New Configure options "threads" and "no-threads". For systems 18440 where the proper compiler options are known (currently Solaris 18441 and Linux), "threads" is the default. 18442 18443 *Bodo Moeller* 18444 18445 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18446 18447 *Bodo Moeller* 18448 18449 * Install various scripts to $(OPENSSLDIR)/misc, not to 18450 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18451 such as /usr/local/bin. 18452 18453 *Bodo Moeller* 18454 18455 * "make linux-shared" to build shared libraries. 18456 18457 *Niels Poppe <niels@netbox.org>* 18458 18459 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18460 18461 *Ulf Möller* 18462 18463 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18464 extension adding in x509 utility. 18465 18466 *Steve Henson* 18467 18468 * Remove NOPROTO sections and error code comments. 18469 18470 *Ulf Möller* 18471 18472 * Partial rewrite of the DEF file generator to now parse the ANSI 18473 prototypes. 18474 18475 *Steve Henson* 18476 18477 * New Configure options --prefix=DIR and --openssldir=DIR. 18478 18479 *Ulf Möller* 18480 18481 * Complete rewrite of the error code script(s). It is all now handled 18482 by one script at the top level which handles error code gathering, 18483 header rewriting and C source file generation. It should be much better 18484 than the old method: it now uses a modified version of Ulf's parser to 18485 read the ANSI prototypes in all header files (thus the old K&R definitions 18486 aren't needed for error creation any more) and do a better job of 18487 translating function codes into names. The old 'ASN1 error code embedded 18488 in a comment' is no longer necessary and it doesn't use .err files which 18489 have now been deleted. Also the error code call doesn't have to appear all 18490 on one line (which resulted in some large lines...). 18491 18492 *Steve Henson* 18493 18494 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18495 18496 *Bodo Moeller* 18497 18498 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18499 0 (which usually indicates a closed connection), but continue reading. 18500 18501 *Bodo Moeller* 18502 18503 * Fix some race conditions. 18504 18505 *Bodo Moeller* 18506 18507 * Add support for CRL distribution points extension. Add Certificate 18508 Policies and CRL distribution points documentation. 18509 18510 *Steve Henson* 18511 18512 * Move the autogenerated header file parts to crypto/opensslconf.h. 18513 18514 *Ulf Möller* 18515 18516 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18517 8 of keying material. Merlin has also confirmed interop with this fix 18518 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18519 18520 *Merlin Hughes <merlin@baltimore.ie>* 18521 18522 * Fix lots of warnings. 18523 18524 *Richard Levitte <levitte@stacken.kth.se>* 18525 18526 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18527 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18528 18529 *Richard Levitte <levitte@stacken.kth.se>* 18530 18531 * Fix problems with sizeof(long) == 8. 18532 18533 *Andy Polyakov <appro@fy.chalmers.se>* 18534 18535 * Change functions to ANSI C. 18536 18537 *Ulf Möller* 18538 18539 * Fix typos in error codes. 18540 18541 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18542 18543 * Remove defunct assembler files from Configure. 18544 18545 *Ulf Möller* 18546 18547 * SPARC v8 assembler BIGNUM implementation. 18548 18549 *Andy Polyakov <appro@fy.chalmers.se>* 18550 18551 * Support for Certificate Policies extension: both print and set. 18552 Various additions to support the r2i method this uses. 18553 18554 *Steve Henson* 18555 18556 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18557 return a const string when you are expecting an allocated buffer. 18558 18559 *Ben Laurie* 18560 18561 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18562 types DirectoryString and DisplayText. 18563 18564 *Steve Henson* 18565 18566 * Add code to allow r2i extensions to access the configuration database, 18567 add an LHASH database driver and add several ctx helper functions. 18568 18569 *Steve Henson* 18570 18571 * Fix an evil bug in bn_expand2() which caused various BN functions to 18572 fail when they extended the size of a BIGNUM. 18573 18574 *Steve Henson* 18575 18576 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18577 support typesafe stack. 18578 18579 *Steve Henson* 18580 18581 * Fix typo in SSL_[gs]et_options(). 18582 18583 *Nils Frostberg <nils@medcom.se>* 18584 18585 * Delete various functions and files that belonged to the (now obsolete) 18586 old X509V3 handling code. 18587 18588 *Steve Henson* 18589 18590 * New Configure option "rsaref". 18591 18592 *Ulf Möller* 18593 18594 * Don't auto-generate pem.h. 18595 18596 *Bodo Moeller* 18597 18598 * Introduce type-safe ASN.1 SETs. 18599 18600 *Ben Laurie* 18601 18602 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18603 18604 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18605 18606 * Introduce type-safe STACKs. This will almost certainly break lots of code 18607 that links with OpenSSL (well at least cause lots of warnings), but fear 18608 not: the conversion is trivial, and it eliminates loads of evil casts. A 18609 few STACKed things have been converted already. Feel free to convert more. 18610 In the fullness of time, I'll do away with the STACK type altogether. 18611 18612 *Ben Laurie* 18613 18614 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18615 specified in `<certfile>` by updating the entry in the index.txt file. 18616 This way one no longer has to edit the index.txt file manually for 18617 revoking a certificate. The -revoke option does the gory details now. 18618 18619 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18620 18621 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18622 `-text` option at all and this way the `-noout -text` combination was 18623 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18624 18625 *Ralf S. Engelschall* 18626 18627 * Make sure a corresponding plain text error message exists for the 18628 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18629 verify callback function determined that a certificate was revoked. 18630 18631 *Ralf S. Engelschall* 18632 18633 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18634 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18635 all available ciphers including rc5, which was forgotten until now. 18636 In order to let the testing shell script know which algorithms 18637 are available, a new (up to now undocumented) command 18638 `openssl list-cipher-commands` is used. 18639 18640 *Bodo Moeller* 18641 18642 * Bugfix: s_client occasionally would sleep in select() when 18643 it should have checked SSL_pending() first. 18644 18645 *Bodo Moeller* 18646 18647 * New functions DSA_do_sign and DSA_do_verify to provide access to 18648 the raw DSA values prior to ASN.1 encoding. 18649 18650 *Ulf Möller* 18651 18652 * Tweaks to Configure 18653 18654 *Niels Poppe <niels@netbox.org>* 18655 18656 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18657 yet... 18658 18659 *Steve Henson* 18660 18661 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18662 18663 *Ulf Möller* 18664 18665 * New config option to avoid instructions that are illegal on the 80386. 18666 The default code is faster, but requires at least a 486. 18667 18668 *Ulf Möller* 18669 18670 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18671 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18672 same as SSL2_VERSION anyway. 18673 18674 *Bodo Moeller* 18675 18676 * New "-showcerts" option for s_client. 18677 18678 *Bodo Moeller* 18679 18680 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18681 application. Various cleanups and fixes. 18682 18683 *Steve Henson* 18684 18685 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18686 modify error routines to work internally. Add error codes and PBE init 18687 to library startup routines. 18688 18689 *Steve Henson* 18690 18691 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18692 packing functions to asn1 and evp. Changed function names and error 18693 codes along the way. 18694 18695 *Steve Henson* 18696 18697 * PKCS12 integration: and so it begins... First of several patches to 18698 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18699 objects to objects.h 18700 18701 *Steve Henson* 18702 18703 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18704 and display support for Thawte strong extranet extension. 18705 18706 *Steve Henson* 18707 18708 * Add LinuxPPC support. 18709 18710 *Jeff Dubrule <igor@pobox.org>* 18711 18712 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18713 bn_div_words in alpha.s. 18714 18715 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18716 18717 * Make sure the RSA OAEP test is skipped under -DRSAref because 18718 OAEP isn't supported when OpenSSL is built with RSAref. 18719 18720 *Ulf Moeller <ulf@fitug.de>* 18721 18722 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18723 so they no longer are missing under -DNOPROTO. 18724 18725 *Soren S. Jorvang <soren@t.dk>* 18726 18727### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18728 18729 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18730 doesn't work when the session is reused. Coming soon! 18731 18732 *Ben Laurie* 18733 18734 * Fix a security hole, that allows sessions to be reused in the wrong 18735 context thus bypassing client cert protection! All software that uses 18736 client certs and session caches in multiple contexts NEEDS PATCHING to 18737 allow session reuse! A fuller solution is in the works. 18738 18739 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18740 18741 * Some more source tree cleanups (removed obsolete files 18742 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18743 permission on "config" script to be executable) and a fix for the INSTALL 18744 document. 18745 18746 *Ulf Moeller <ulf@fitug.de>* 18747 18748 * Remove some legacy and erroneous uses of malloc, free instead of 18749 Malloc, Free. 18750 18751 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18752 18753 * Make rsa_oaep_test return non-zero on error. 18754 18755 *Ulf Moeller <ulf@fitug.de>* 18756 18757 * Add support for native Solaris shared libraries. Configure 18758 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18759 if someone would make that last step automatic. 18760 18761 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18762 18763 * ctx_size was not built with the right compiler during "make links". Fixed. 18764 18765 *Ben Laurie* 18766 18767 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18768 except NULL ciphers". This means the default cipher list will no longer 18769 enable NULL ciphers. They need to be specifically enabled e.g. with 18770 the string "DEFAULT:eNULL". 18771 18772 *Steve Henson* 18773 18774 * Fix to RSA private encryption routines: if p < q then it would 18775 occasionally produce an invalid result. This will only happen with 18776 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18777 18778 *Steve Henson* 18779 18780 * Be less restrictive and allow also `perl util/perlpath.pl 18781 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 18782 because this way one can also use an interpreter named `perl5` (which is 18783 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 18784 installed as `perl`). 18785 18786 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18787 18788 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 18789 18790 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18791 18792 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 18793 advapi32.lib to Win32 build and change the pem test comparison 18794 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 18795 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 18796 and crypto/des/ede_cbcm_enc.c. 18797 18798 *Steve Henson* 18799 18800 * DES quad checksum was broken on big-endian architectures. Fixed. 18801 18802 *Ben Laurie* 18803 18804 * Comment out two functions in bio.h that aren't implemented. Fix up the 18805 Win32 test batch file so it (might) work again. The Win32 test batch file 18806 is horrible: I feel ill.... 18807 18808 *Steve Henson* 18809 18810 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 18811 in e_os.h. Audit of header files to check ANSI and non ANSI 18812 sections: 10 functions were absent from non ANSI section and not exported 18813 from Windows DLLs. Fixed up libeay.num for new functions. 18814 18815 *Steve Henson* 18816 18817 * Make `openssl version` output lines consistent. 18818 18819 *Ralf S. Engelschall* 18820 18821 * Fix Win32 symbol export lists for BIO functions: Added 18822 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 18823 to ms/libeay{16,32}.def. 18824 18825 *Ralf S. Engelschall* 18826 18827 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 18828 fine under Unix and passes some trivial tests I've now added. But the 18829 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 18830 added to make sure no one expects that this stuff really works in the 18831 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 18832 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 18833 openssl_bio.xs. 18834 18835 *Ralf S. Engelschall* 18836 18837 * Fix the generation of two part addresses in perl. 18838 18839 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 18840 18841 * Add config entry for Linux on MIPS. 18842 18843 *John Tobey <jtobey@channel1.com>* 18844 18845 * Make links whenever Configure is run, unless we are on Windoze. 18846 18847 *Ben Laurie* 18848 18849 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 18850 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 18851 in CRLs. 18852 18853 *Steve Henson* 18854 18855 * Add a useful kludge to allow package maintainers to specify compiler and 18856 other platforms details on the command line without having to patch the 18857 Configure script every time: One now can use 18858 `perl Configure <id>:<details>`, 18859 i.e. platform ids are allowed to have details appended 18860 to them (separated by colons). This is treated as there would be a static 18861 pre-configured entry in Configure's %table under key `<id>` with value 18862 `<details>` and `perl Configure <id>` is called. So, when you want to 18863 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 18864 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 18865 now, which overrides the FreeBSD-elf entry on-the-fly. 18866 18867 *Ralf S. Engelschall* 18868 18869 * Disable new TLS1 ciphersuites by default: they aren't official yet. 18870 18871 *Ben Laurie* 18872 18873 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 18874 on the `perl Configure ...` command line. This way one can compile 18875 OpenSSL libraries with Position Independent Code (PIC) which is needed 18876 for linking it into DSOs. 18877 18878 *Ralf S. Engelschall* 18879 18880 * Remarkably, export ciphers were totally broken and no-one had noticed! 18881 Fixed. 18882 18883 *Ben Laurie* 18884 18885 * Cleaned up the LICENSE document: The official contact for any license 18886 questions now is the OpenSSL core team under openssl-core@openssl.org. 18887 And add a paragraph about the dual-license situation to make sure people 18888 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 18889 to the OpenSSL toolkit. 18890 18891 *Ralf S. Engelschall* 18892 18893 * General source tree makefile cleanups: Made `making xxx in yyy...` 18894 display consistent in the source tree and replaced `/bin/rm` by `rm`. 18895 Additionally cleaned up the `make links` target: Remove unnecessary 18896 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 18897 to speed processing and no longer clutter the display with confusing 18898 stuff. Instead only the actually done links are displayed. 18899 18900 *Ralf S. Engelschall* 18901 18902 * Permit null encryption ciphersuites, used for authentication only. It used 18903 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 18904 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 18905 encryption. 18906 18907 *Ben Laurie* 18908 18909 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 18910 signed attributes when verifying signatures (this would break them), 18911 the detached data encoding was wrong and public keys obtained using 18912 X509_get_pubkey() weren't freed. 18913 18914 *Steve Henson* 18915 18916 * Add text documentation for the BUFFER functions. Also added a work around 18917 to a Win95 console bug. This was triggered by the password read stuff: the 18918 last character typed gets carried over to the next fread(). If you were 18919 generating a new cert request using 'req' for example then the last 18920 character of the passphrase would be CR which would then enter the first 18921 field as blank. 18922 18923 *Steve Henson* 18924 18925 * Added the new 'Includes OpenSSL Cryptography Software' button as 18926 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 18927 button and can be used by applications based on OpenSSL to show the 18928 relationship to the OpenSSL project. 18929 18930 *Ralf S. Engelschall* 18931 18932 * Remove confusing variables in function signatures in files 18933 ssl/ssl_lib.c and ssl/ssl.h. 18934 18935 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18936 18937 * Don't install bss_file.c under PREFIX/include/ 18938 18939 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18940 18941 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 18942 functions that return function pointers and has support for NT specific 18943 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 18944 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 18945 unsigned to signed types: this was killing the Win32 compile. 18946 18947 *Steve Henson* 18948 18949 * Add new certificate file to stack functions, 18950 SSL_add_dir_cert_subjects_to_stack() and 18951 SSL_add_file_cert_subjects_to_stack(). These largely supplant 18952 SSL_load_client_CA_file(), and can be used to add multiple certs easily 18953 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 18954 This means that Apache-SSL and similar packages don't have to mess around 18955 to add as many CAs as they want to the preferred list. 18956 18957 *Ben Laurie* 18958 18959 * Experiment with doxygen documentation. Currently only partially applied to 18960 ssl/ssl_lib.c. 18961 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 18962 openssl.doxy as the configuration file. 18963 18964 *Ben Laurie* 18965 18966 * Get rid of remaining C++-style comments which strict C compilers hate. 18967 18968 *Ralf S. Engelschall, pointed out by Carlos Amengual* 18969 18970 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 18971 compiled in by default: it has problems with large keys. 18972 18973 *Steve Henson* 18974 18975 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 18976 DH private keys and/or callback functions which directly correspond to 18977 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 18978 is needed for applications which have to configure certificates on a 18979 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 18980 (e.g. s_server). 18981 For the RSA certificate situation is makes no difference, but 18982 for the DSA certificate situation this fixes the "no shared cipher" 18983 problem where the OpenSSL cipher selection procedure failed because the 18984 temporary keys were not overtaken from the context and the API provided 18985 no way to reconfigure them. 18986 The new functions now let applications reconfigure the stuff and they 18987 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 18988 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 18989 non-public-API function ssl_cert_instantiate() is used as a helper 18990 function and also to reduce code redundancy inside ssl_rsa.c. 18991 18992 *Ralf S. Engelschall* 18993 18994 * Move s_server -dcert and -dkey options out of the undocumented feature 18995 area because they are useful for the DSA situation and should be 18996 recognized by the users. 18997 18998 *Ralf S. Engelschall* 18999 19000 * Fix the cipher decision scheme for export ciphers: the export bits are 19001 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 19002 SSL_EXP_MASK. So, the original variable has to be used instead of the 19003 already masked variable. 19004 19005 *Richard Levitte <levitte@stacken.kth.se>* 19006 19007 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 19008 19009 *Richard Levitte <levitte@stacken.kth.se>* 19010 19011 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 19012 from `int` to `unsigned int` because it is a length and initialized by 19013 EVP_DigestFinal() which expects an `unsigned int *`. 19014 19015 *Richard Levitte <levitte@stacken.kth.se>* 19016 19017 * Don't hard-code path to Perl interpreter on shebang line of Configure 19018 script. Instead use the usual Shell->Perl transition trick. 19019 19020 *Ralf S. Engelschall* 19021 19022 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 19023 (in addition to RSA certificates) to match the behaviour of `openssl dsa 19024 -noout -modulus` as it's already the case for `openssl rsa -noout 19025 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 19026 currently the public key is printed (a decision which was already done by 19027 `openssl dsa -modulus` in the past) which serves a similar purpose. 19028 Additionally the NO_RSA no longer completely removes the whole -modulus 19029 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 19030 now, too. 19031 19032 *Ralf S. Engelschall* 19033 19034 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 19035 BIO. See the source (crypto/evp/bio_ok.c) for more info. 19036 19037 *Arne Ansper <arne@ats.cyber.ee>* 19038 19039 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 19040 to be added. Now both 'req' and 'ca' can use new objects defined in the 19041 config file. 19042 19043 *Steve Henson* 19044 19045 * Add cool BIO that does syslog (or event log on NT). 19046 19047 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 19048 19049 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 19050 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 19051 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 19052 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 19053 19054 *Ben Laurie* 19055 19056 * Add preliminary config info for new extension code. 19057 19058 *Steve Henson* 19059 19060 * Make RSA_NO_PADDING really use no padding. 19061 19062 *Ulf Moeller <ulf@fitug.de>* 19063 19064 * Generate errors when private/public key check is done. 19065 19066 *Ben Laurie* 19067 19068 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 19069 for some CRL extensions and new objects added. 19070 19071 *Steve Henson* 19072 19073 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 19074 key usage extension and fuller support for authority key id. 19075 19076 *Steve Henson* 19077 19078 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 19079 padding method for RSA, which is recommended for new applications in PKCS 19080 #1 v2.0 (RFC 2437, October 1998). 19081 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 19082 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 19083 against Bleichbacher's attack on RSA. 19084 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 19085 Ben Laurie* 19086 19087 * Updates to the new SSL compression code 19088 19089 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19090 19091 * Fix so that the version number in the master secret, when passed 19092 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 19093 (because the server will not accept higher), that the version number 19094 is 0x03,0x01, not 0x03,0x00 19095 19096 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19097 19098 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 19099 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 19100 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 19101 19102 *Steve Henson* 19103 19104 * Support for RAW extensions where an arbitrary extension can be 19105 created by including its DER encoding. See `apps/openssl.cnf` for 19106 an example. 19107 19108 *Steve Henson* 19109 19110 * Make sure latest Perl versions don't interpret some generated C array 19111 code as Perl array code in the crypto/err/err_genc.pl script. 19112 19113 *Lars Weber <3weber@informatik.uni-hamburg.de>* 19114 19115 * Modify ms/do_ms.bat to not generate assembly language makefiles since 19116 not many people have the assembler. Various Win32 compilation fixes and 19117 update to the INSTALL.W32 file with (hopefully) more accurate Win32 19118 build instructions. 19119 19120 *Steve Henson* 19121 19122 * Modify configure script 'Configure' to automatically create crypto/date.h 19123 file under Win32 and also build pem.h from pem.org. New script 19124 util/mkfiles.pl to create the MINFO file on environments that can't do a 19125 'make files': perl util/mkfiles.pl >MINFO should work. 19126 19127 *Steve Henson* 19128 19129 * Major rework of DES function declarations, in the pursuit of correctness 19130 and purity. As a result, many evil casts evaporated, and some weirdness, 19131 too. You may find this causes warnings in your code. Zapping your evil 19132 casts will probably fix them. Mostly. 19133 19134 *Ben Laurie* 19135 19136 * Fix for a typo in asn1.h. Bug fix to object creation script 19137 obj_dat.pl. It considered a zero in an object definition to mean 19138 "end of object": none of the objects in objects.h have any zeros 19139 so it wasn't spotted. 19140 19141 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 19142 19143 * Add support for Triple DES Cipher Block Chaining with Output Feedback 19144 Masking (CBCM). In the absence of test vectors, the best I have been able 19145 to do is check that the decrypt undoes the encrypt, so far. Send me test 19146 vectors if you have them. 19147 19148 *Ben Laurie* 19149 19150 * Correct calculation of key length for export ciphers (too much space was 19151 allocated for null ciphers). This has not been tested! 19152 19153 *Ben Laurie* 19154 19155 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19156 message is now correct (it understands "crypto" and "ssl" on its 19157 command line). There is also now an "update" option. This will update 19158 the util/ssleay.num and util/libeay.num files with any new functions. 19159 If you do a: 19160 perl util/mkdef.pl crypto ssl update 19161 it will update them. 19162 19163 *Steve Henson* 19164 19165 * Overhauled the Perl interface: 19166 - ported BN stuff to OpenSSL's different BN library 19167 - made the perl/ source tree CVS-aware 19168 - renamed the package from SSLeay to OpenSSL (the files still contain 19169 their history because I've copied them in the repository) 19170 - removed obsolete files (the test scripts will be replaced 19171 by better Test::Harness variants in the future) 19172 19173 *Ralf S. Engelschall* 19174 19175 * First cut for a very conservative source tree cleanup: 19176 1. merge various obsolete readme texts into doc/ssleay.txt 19177 where we collect the old documents and readme texts. 19178 2. remove the first part of files where I'm already sure that we no 19179 longer need them because of three reasons: either they are just temporary 19180 files which were left by Eric or they are preserved original files where 19181 I've verified that the diff is also available in the CVS via "cvs diff 19182 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19183 the crypto/md/ stuff). 19184 19185 *Ralf S. Engelschall* 19186 19187 * More extension code. Incomplete support for subject and issuer alt 19188 name, issuer and authority key id. Change the i2v function parameters 19189 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19190 what that's for :-) Fix to ASN1 macro which messed up 19191 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19192 19193 *Steve Henson* 19194 19195 * Preliminary support for ENUMERATED type. This is largely copied from the 19196 INTEGER code. 19197 19198 *Steve Henson* 19199 19200 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19201 19202 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19203 19204 * Make sure `make rehash` target really finds the `openssl` program. 19205 19206 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19207 19208 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19209 like to hear about it if this slows down other processors. 19210 19211 *Ben Laurie* 19212 19213 * Add CygWin32 platform information to Configure script. 19214 19215 *Alan Batie <batie@aahz.jf.intel.com>* 19216 19217 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19218 19219 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19220 19221 * New program nseq to manipulate netscape certificate sequences 19222 19223 *Steve Henson* 19224 19225 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19226 few typos. 19227 19228 *Steve Henson* 19229 19230 * Fixes to BN code. Previously the default was to define BN_RECURSION 19231 but the BN code had some problems that would cause failures when 19232 doing certificate verification and some other functions. 19233 19234 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19235 19236 * Add ASN1 and PEM code to support netscape certificate sequences. 19237 19238 *Steve Henson* 19239 19240 * Add ASN1 and PEM code to support netscape certificate sequences. 19241 19242 *Steve Henson* 19243 19244 * Add several PKIX and private extended key usage OIDs. 19245 19246 *Steve Henson* 19247 19248 * Modify the 'ca' program to handle the new extension code. Modify 19249 openssl.cnf for new extension format, add comments. 19250 19251 *Steve Henson* 19252 19253 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19254 and add a sample to openssl.cnf so req -x509 now adds appropriate 19255 CA extensions. 19256 19257 *Steve Henson* 19258 19259 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19260 error code, add initial support to X509_print() and x509 application. 19261 19262 *Steve Henson* 19263 19264 * Takes a deep breath and start adding X509 V3 extension support code. Add 19265 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19266 stuff is currently isolated and isn't even compiled yet. 19267 19268 *Steve Henson* 19269 19270 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19271 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19272 Removed the versions check from X509 routines when loading extensions: 19273 this allows certain broken certificates that don't set the version 19274 properly to be processed. 19275 19276 *Steve Henson* 19277 19278 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19279 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19280 can still be regenerated with "make depend". 19281 19282 *Ben Laurie* 19283 19284 * Spelling mistake in C version of CAST-128. 19285 19286 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19287 19288 * Changes to the error generation code. The perl script err-code.pl 19289 now reads in the old error codes and retains the old numbers, only 19290 adding new ones if necessary. It also only changes the .err files if new 19291 codes are added. The makefiles have been modified to only insert errors 19292 when needed (to avoid needlessly modifying header files). This is done 19293 by only inserting errors if the .err file is newer than the auto generated 19294 C file. To rebuild all the error codes from scratch (the old behaviour) 19295 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19296 or delete all the .err files. 19297 19298 *Steve Henson* 19299 19300 * CAST-128 was incorrectly implemented for short keys. The C version has 19301 been fixed, but is untested. The assembler versions are also fixed, but 19302 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19303 to regenerate it if needed. 19304 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19305 Hagino <itojun@kame.net>* 19306 19307 * File was opened incorrectly in randfile.c. 19308 19309 *Ulf Möller <ulf@fitug.de>* 19310 19311 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19312 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19313 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19314 al: it's just almost always a UTCTime. Note this patch adds new error 19315 codes so do a "make errors" if there are problems. 19316 19317 *Steve Henson* 19318 19319 * Correct Linux 1 recognition in config. 19320 19321 *Ulf Möller <ulf@fitug.de>* 19322 19323 * Remove pointless MD5 hash when using DSA keys in ca. 19324 19325 *Anonymous <nobody@replay.com>* 19326 19327 * Generate an error if given an empty string as a cert directory. Also 19328 generate an error if handed NULL (previously returned 0 to indicate an 19329 error, but didn't set one). 19330 19331 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19332 19333 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19334 19335 *Ben Laurie* 19336 19337 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19338 parameters. This was causing a warning which killed off the Win32 compile. 19339 19340 *Steve Henson* 19341 19342 * Remove C++ style comments from crypto/bn/bn_local.h. 19343 19344 *Neil Costigan <neil.costigan@celocom.com>* 19345 19346 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19347 based on a text string, looking up short and long names and finally 19348 "dot" format. The "dot" format stuff didn't work. Added new function 19349 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19350 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19351 OID is not part of the table. 19352 19353 *Steve Henson* 19354 19355 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19356 X509_LOOKUP_by_alias(). 19357 19358 *Ben Laurie* 19359 19360 * Sort openssl functions by name. 19361 19362 *Ben Laurie* 19363 19364 * Get the `gendsa` command working and add it to the `list` command. Remove 19365 encryption from sample DSA keys (in case anyone is interested the password 19366 was "1234"). 19367 19368 *Steve Henson* 19369 19370 * Make *all* `*_free` functions accept a NULL pointer. 19371 19372 *Frans Heymans <fheymans@isaserver.be>* 19373 19374 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19375 NULL pointers. 19376 19377 *Anonymous <nobody@replay.com>* 19378 19379 * s_server should send the CAfile as acceptable CAs, not its own cert. 19380 19381 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19382 19383 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19384 19385 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19386 19387 * Temp key "for export" tests were wrong in s3_srvr.c. 19388 19389 *Anonymous <nobody@replay.com>* 19390 19391 * Add prototype for temp key callback functions 19392 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19393 19394 *Ben Laurie* 19395 19396 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19397 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19398 19399 *Steve Henson* 19400 19401 * X509_name_add_entry() freed the wrong thing after an error. 19402 19403 *Arne Ansper <arne@ats.cyber.ee>* 19404 19405 * rsa_eay.c would attempt to free a NULL context. 19406 19407 *Arne Ansper <arne@ats.cyber.ee>* 19408 19409 * BIO_s_socket() had a broken should_retry() on Windoze. 19410 19411 *Arne Ansper <arne@ats.cyber.ee>* 19412 19413 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19414 19415 *Arne Ansper <arne@ats.cyber.ee>* 19416 19417 * Make sure the already existing X509_STORE->depth variable is initialized 19418 in X509_STORE_new(), but document the fact that this variable is still 19419 unused in the certificate verification process. 19420 19421 *Ralf S. Engelschall* 19422 19423 * Fix the various library and `apps/` files to free up pkeys obtained from 19424 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19425 19426 *Steve Henson* 19427 19428 * Fix reference counting in X509_PUBKEY_get(). This makes 19429 demos/maurice/example2.c work, amongst others, probably. 19430 19431 *Steve Henson and Ben Laurie* 19432 19433 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19434 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19435 are no longer created. This way we have a single and consistent command 19436 line interface `openssl <command>`, similar to `cvs <command>`. 19437 19438 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19439 19440 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19441 BIT STRING wrapper always have zero unused bits. 19442 19443 *Steve Henson* 19444 19445 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19446 19447 *Steve Henson* 19448 19449 * Make the top-level INSTALL documentation easier to understand. 19450 19451 *Paul Sutton* 19452 19453 * Makefiles updated to exit if an error occurs in a sub-directory 19454 make (including if user presses ^C) [Paul Sutton] 19455 19456 * Make Montgomery context stuff explicit in RSA data structure. 19457 19458 *Ben Laurie* 19459 19460 * Fix build order of pem and err to allow for generated pem.h. 19461 19462 *Ben Laurie* 19463 19464 * Fix renumbering bug in X509_NAME_delete_entry(). 19465 19466 *Ben Laurie* 19467 19468 * Enhanced the err-ins.pl script so it makes the error library number 19469 global and can add a library name. This is needed for external ASN1 and 19470 other error libraries. 19471 19472 *Steve Henson* 19473 19474 * Fixed sk_insert which never worked properly. 19475 19476 *Steve Henson* 19477 19478 * Fix ASN1 macros so they can handle indefinite length constructed 19479 EXPLICIT tags. Some non standard certificates use these: they can now 19480 be read in. 19481 19482 *Steve Henson* 19483 19484 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19485 into a single doc/ssleay.txt bundle. This way the information is still 19486 preserved but no longer messes up this directory. Now it's new room for 19487 the new set of documentation files. 19488 19489 *Ralf S. Engelschall* 19490 19491 * SETs were incorrectly DER encoded. This was a major pain, because they 19492 shared code with SEQUENCEs, which aren't coded the same. This means that 19493 almost everything to do with SETs or SEQUENCEs has either changed name or 19494 number of arguments. 19495 19496 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19497 19498 * Fix test data to work with the above. 19499 19500 *Ben Laurie* 19501 19502 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19503 was already fixed by Eric for 0.9.1 it seems. 19504 19505 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19506 19507 * Autodetect FreeBSD3. 19508 19509 *Ben Laurie* 19510 19511 * Fix various bugs in Configure. This affects the following platforms: 19512 nextstep 19513 ncr-scde 19514 unixware-2.0 19515 unixware-2.0-pentium 19516 sco5-cc. 19517 19518 *Ben Laurie* 19519 19520 * Eliminate generated files from CVS. Reorder tests to regenerate files 19521 before they are needed. 19522 19523 *Ben Laurie* 19524 19525 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19526 19527 *Ben Laurie* 19528 19529### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19530 19531 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19532 changed SSLeay to OpenSSL in version strings. 19533 19534 *Ralf S. Engelschall* 19535 19536 * Some fixups to the top-level documents. 19537 19538 *Paul Sutton* 19539 19540 * Fixed the nasty bug where rsaref.h was not found under compile-time 19541 because the symlink to include/ was missing. 19542 19543 *Ralf S. Engelschall* 19544 19545 * Incorporated the popular no-RSA/DSA-only patches 19546 which allow to compile an RSA-free SSLeay. 19547 19548 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19549 19550 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19551 when "ssleay" is still not found. 19552 19553 *Ralf S. Engelschall* 19554 19555 * Added more platforms to Configure: Cray T3E, HPUX 11, 19556 19557 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19558 19559 * Updated the README file. 19560 19561 *Ralf S. Engelschall* 19562 19563 * Added various .cvsignore files in the CVS repository subdirs 19564 to make a "cvs update" really silent. 19565 19566 *Ralf S. Engelschall* 19567 19568 * Recompiled the error-definition header files and added 19569 missing symbols to the Win32 linker tables. 19570 19571 *Ralf S. Engelschall* 19572 19573 * Cleaned up the top-level documents; 19574 o new files: CHANGES and LICENSE 19575 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19576 o merged COPYRIGHT into LICENSE 19577 o removed obsolete TODO file 19578 o renamed MICROSOFT to INSTALL.W32 19579 19580 *Ralf S. Engelschall* 19581 19582 * Removed dummy files from the 0.9.1b source tree: 19583 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19584 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19585 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19586 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19587 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19588 19589 *Ralf S. Engelschall* 19590 19591 * Added various platform portability fixes. 19592 19593 *Mark J. Cox* 19594 19595 * The Genesis of the OpenSSL rpject: 19596 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19597 Young and Tim J. Hudson created while they were working for C2Net until 19598 summer 1998. 19599 19600 *The OpenSSL Project* 19601 19602### Changes between 0.9.0b and 0.9.1b [not released] 19603 19604 * Updated a few CA certificates under certs/ 19605 19606 *Eric A. Young* 19607 19608 * Changed some BIGNUM api stuff. 19609 19610 *Eric A. Young* 19611 19612 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19613 DGUX x86, Linux Alpha, etc. 19614 19615 *Eric A. Young* 19616 19617 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19618 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19619 available). 19620 19621 *Eric A. Young* 19622 19623 * Add -strparse option to asn1pars program which parses nested 19624 binary structures 19625 19626 *Dr Stephen Henson <shenson@bigfoot.com>* 19627 19628 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19629 19630 *Eric A. Young* 19631 19632 * DSA fix for "ca" program. 19633 19634 *Eric A. Young* 19635 19636 * Added "-genkey" option to "dsaparam" program. 19637 19638 *Eric A. Young* 19639 19640 * Added RIPE MD160 (rmd160) message digest. 19641 19642 *Eric A. Young* 19643 19644 * Added -a (all) option to "ssleay version" command. 19645 19646 *Eric A. Young* 19647 19648 * Added PLATFORM define which is the id given to Configure. 19649 19650 *Eric A. Young* 19651 19652 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19653 19654 *Eric A. Young* 19655 19656 * Extended the ASN.1 parser routines. 19657 19658 *Eric A. Young* 19659 19660 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19661 19662 *Eric A. Young* 19663 19664 * Added a BN_CTX to the BN library. 19665 19666 *Eric A. Young* 19667 19668 * Fixed the weak key values in DES library 19669 19670 *Eric A. Young* 19671 19672 * Changed API in EVP library for cipher aliases. 19673 19674 *Eric A. Young* 19675 19676 * Added support for RC2/64bit cipher. 19677 19678 *Eric A. Young* 19679 19680 * Converted the lhash library to the crypto/mem.c functions. 19681 19682 *Eric A. Young* 19683 19684 * Added more recognized ASN.1 object ids. 19685 19686 *Eric A. Young* 19687 19688 * Added more RSA padding checks for SSL/TLS. 19689 19690 *Eric A. Young* 19691 19692 * Added BIO proxy/filter functionality. 19693 19694 *Eric A. Young* 19695 19696 * Added extra_certs to SSL_CTX which can be used 19697 send extra CA certificates to the client in the CA cert chain sending 19698 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19699 19700 *Eric A. Young* 19701 19702 * Now Fortezza is denied in the authentication phase because 19703 this is key exchange mechanism is not supported by SSLeay at all. 19704 19705 *Eric A. Young* 19706 19707 * Additional PKCS1 checks. 19708 19709 *Eric A. Young* 19710 19711 * Support the string "TLSv1" for all TLS v1 ciphers. 19712 19713 *Eric A. Young* 19714 19715 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19716 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19717 19718 *Eric A. Young* 19719 19720 * Fixed a few memory leaks. 19721 19722 *Eric A. Young* 19723 19724 * Fixed various code and comment typos. 19725 19726 *Eric A. Young* 19727 19728 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19729 bytes sent in the client random. 19730 19731 *Edward Bishop <ebishop@spyglass.com>* 19732 19733<!-- Links --> 19734 19735[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807 19736[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817 19737[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 19738[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 19739[RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 19740[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 19741[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 19742[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466 19743[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465 19744[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464 19745[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19746[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19747[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19748[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19749[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19750[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19751[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19752[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19753[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19754[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19755[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097 19756[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19757[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19758[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19759[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19760[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19761[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19762[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19763[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19764[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19765[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19766[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 19767[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 19768[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 19769[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 19770[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 19771[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 19772[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 19773[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 19774[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 19775[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 19776[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 19777[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 19778[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 19779[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 19780[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 19781[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 19782[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 19783[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 19784[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 19785[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 19786[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 19787[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 19788[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 19789[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 19790[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 19791[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 19792[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 19793[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 19794[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 19795[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 19796[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 19797[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 19798[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 19799[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 19800[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 19801[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 19802[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 19803[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 19804[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 19805[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 19806[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 19807[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 19808[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 19809[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 19810[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 19811[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 19812[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 19813[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 19814[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 19815[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 19816[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 19817[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 19818[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 19819[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 19820[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 19821[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 19822[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 19823[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 19824[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 19825[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 19826[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 19827[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 19828[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 19829[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 19830[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 19831[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 19832[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 19833[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 19834[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 19835[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 19836[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 19837[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 19838[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 19839[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 19840[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 19841[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 19842[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 19843[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 19844[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 19845[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 19846[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 19847[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 19848[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 19849[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 19850[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 19851[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 19852[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 19853[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 19854[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 19855[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 19856[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 19857[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 19858[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 19859[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 19860[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 19861[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 19862[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 19863[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 19864[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 19865[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 19866[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 19867[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 19868[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 19869[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 19870[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 19871[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 19872[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 19873[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 19874[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 19875[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 19876[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 19877[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 19878[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 19879[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 19880[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 19881[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 19882[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 19883[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 19884[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 19885[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 19886[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 19887[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 19888[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 19889[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 19890[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 19891[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 19892[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 19893[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 19894[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 19895[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 19896[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 19897[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 19898[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 19899[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 19900[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 19901[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 19902[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 19903[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 19904[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 19905[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 19906[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 19907[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 19908[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 19909[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 19910[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 19911[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 19912[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 19913[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 19914[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 19915[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 19916[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 19917[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 19918