CHANGES revision 326663
1 2 OpenSSL CHANGES 3 _______________ 4 5 This is a high-level summary of the most important changes. 6 For a full list of changes, see the git commit log; for example, 7 https://github.com/openssl/openssl/commits/ and pick the appropriate 8 release branch. 9 10 Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 11 12 *) Read/write after SSL object in error state 13 14 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 15 mechanism. The intent was that if a fatal error occurred during a handshake 16 then OpenSSL would move into the error state and would immediately fail if 17 you attempted to continue the handshake. This works as designed for the 18 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 19 SSL_connect()), however due to a bug it does not work correctly if 20 SSL_read() or SSL_write() is called directly. In that scenario, if the 21 handshake fails then a fatal error will be returned in the initial function 22 call. If SSL_read()/SSL_write() is subsequently called by the application 23 for the same SSL object then it will succeed and the data is passed without 24 being decrypted/encrypted directly from the SSL/TLS record layer. 25 26 In order to exploit this issue an application bug would have to be present 27 that resulted in a call to SSL_read()/SSL_write() being issued after having 28 already received a fatal error. 29 30 This issue was reported to OpenSSL by David Benjamin (Google). 31 (CVE-2017-3737) 32 [Matt Caswell] 33 34 *) rsaz_1024_mul_avx2 overflow bug on x86_64 35 36 There is an overflow bug in the AVX2 Montgomery multiplication procedure 37 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 38 Analysis suggests that attacks against RSA and DSA as a result of this 39 defect would be very difficult to perform and are not believed likely. 40 Attacks against DH1024 are considered just feasible, because most of the 41 work necessary to deduce information about a private key may be performed 42 offline. The amount of resources required for such an attack would be 43 significant. However, for an attack on TLS to be meaningful, the server 44 would have to share the DH1024 private key among multiple clients, which is 45 no longer an option since CVE-2016-0701. 46 47 This only affects processors that support the AVX2 but not ADX extensions 48 like Intel Haswell (4th generation). 49 50 This issue was reported to OpenSSL by David Benjamin (Google). The issue 51 was originally found via the OSS-Fuzz project. 52 (CVE-2017-3738) 53 [Andy Polyakov] 54 55 Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 56 57 *) bn_sqrx8x_internal carry bug on x86_64 58 59 There is a carry propagating bug in the x86_64 Montgomery squaring 60 procedure. No EC algorithms are affected. Analysis suggests that attacks 61 against RSA and DSA as a result of this defect would be very difficult to 62 perform and are not believed likely. Attacks against DH are considered just 63 feasible (although very difficult) because most of the work necessary to 64 deduce information about a private key may be performed offline. The amount 65 of resources required for such an attack would be very significant and 66 likely only accessible to a limited number of attackers. An attacker would 67 additionally need online access to an unpatched system using the target 68 private key in a scenario with persistent DH parameters and a private 69 key that is shared between multiple clients. 70 71 This only affects processors that support the BMI1, BMI2 and ADX extensions 72 like Intel Broadwell (5th generation) and later or AMD Ryzen. 73 74 This issue was reported to OpenSSL by the OSS-Fuzz project. 75 (CVE-2017-3736) 76 [Andy Polyakov] 77 78 *) Malformed X.509 IPAddressFamily could cause OOB read 79 80 If an X.509 certificate has a malformed IPAddressFamily extension, 81 OpenSSL could do a one-byte buffer overread. The most likely result 82 would be an erroneous display of the certificate in text format. 83 84 This issue was reported to OpenSSL by the OSS-Fuzz project. 85 (CVE-2017-3735) 86 [Rich Salz] 87 88 Changes between 1.0.2k and 1.0.2l [25 May 2017] 89 90 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 91 platform rather than 'mingw'. 92 [Richard Levitte] 93 94 Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 95 96 *) Truncated packet could crash via OOB read 97 98 If one side of an SSL/TLS path is running on a 32-bit host and a specific 99 cipher is being used, then a truncated packet can cause that host to 100 perform an out-of-bounds read, usually resulting in a crash. 101 102 This issue was reported to OpenSSL by Robert ��wi��cki of Google. 103 (CVE-2017-3731) 104 [Andy Polyakov] 105 106 *) BN_mod_exp may produce incorrect results on x86_64 107 108 There is a carry propagating bug in the x86_64 Montgomery squaring 109 procedure. No EC algorithms are affected. Analysis suggests that attacks 110 against RSA and DSA as a result of this defect would be very difficult to 111 perform and are not believed likely. Attacks against DH are considered just 112 feasible (although very difficult) because most of the work necessary to 113 deduce information about a private key may be performed offline. The amount 114 of resources required for such an attack would be very significant and 115 likely only accessible to a limited number of attackers. An attacker would 116 additionally need online access to an unpatched system using the target 117 private key in a scenario with persistent DH parameters and a private 118 key that is shared between multiple clients. For example this can occur by 119 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 120 similar to CVE-2015-3193 but must be treated as a separate problem. 121 122 This issue was reported to OpenSSL by the OSS-Fuzz project. 123 (CVE-2017-3732) 124 [Andy Polyakov] 125 126 *) Montgomery multiplication may produce incorrect results 127 128 There is a carry propagating bug in the Broadwell-specific Montgomery 129 multiplication procedure that handles input lengths divisible by, but 130 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 131 and DH private keys are impossible. This is because the subroutine in 132 question is not used in operations with the private key itself and an input 133 of the attacker's direct choice. Otherwise the bug can manifest itself as 134 transient authentication and key negotiation failures or reproducible 135 erroneous outcome of public-key operations with specially crafted input. 136 Among EC algorithms only Brainpool P-512 curves are affected and one 137 presumably can attack ECDH key negotiation. Impact was not analyzed in 138 detail, because pre-requisites for attack are considered unlikely. Namely 139 multiple clients have to choose the curve in question and the server has to 140 share the private key among them, neither of which is default behaviour. 141 Even then only clients that chose the curve will be affected. 142 143 This issue was publicly reported as transient failures and was not 144 initially recognized as a security issue. Thanks to Richard Morgan for 145 providing reproducible case. 146 (CVE-2016-7055) 147 [Andy Polyakov] 148 149 *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0 150 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 151 prevent issues where no progress is being made and the peer continually 152 sends unrecognised record types, using up resources processing them. 153 [Matt Caswell] 154 155 Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 156 157 *) Missing CRL sanity check 158 159 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 160 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 161 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 162 163 This issue only affects the OpenSSL 1.0.2i 164 (CVE-2016-7052) 165 [Matt Caswell] 166 167 Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 168 169 *) OCSP Status Request extension unbounded memory growth 170 171 A malicious client can send an excessively large OCSP Status Request 172 extension. If that client continually requests renegotiation, sending a 173 large OCSP Status Request extension each time, then there will be unbounded 174 memory growth on the server. This will eventually lead to a Denial Of 175 Service attack through memory exhaustion. Servers with a default 176 configuration are vulnerable even if they do not support OCSP. Builds using 177 the "no-ocsp" build time option are not affected. 178 179 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 180 (CVE-2016-6304) 181 [Matt Caswell] 182 183 *) In order to mitigate the SWEET32 attack, the DES ciphers were moved from 184 HIGH to MEDIUM. 185 186 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 187 Leurent (INRIA) 188 (CVE-2016-2183) 189 [Rich Salz] 190 191 *) OOB write in MDC2_Update() 192 193 An overflow can occur in MDC2_Update() either if called directly or 194 through the EVP_DigestUpdate() function using MDC2. If an attacker 195 is able to supply very large amounts of input data after a previous 196 call to EVP_EncryptUpdate() with a partial block then a length check 197 can overflow resulting in a heap corruption. 198 199 The amount of data needed is comparable to SIZE_MAX which is impractical 200 on most platforms. 201 202 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 203 (CVE-2016-6303) 204 [Stephen Henson] 205 206 *) Malformed SHA512 ticket DoS 207 208 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 209 DoS attack where a malformed ticket will result in an OOB read which will 210 ultimately crash. 211 212 The use of SHA512 in TLS session tickets is comparatively rare as it requires 213 a custom server callback and ticket lookup mechanism. 214 215 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 216 (CVE-2016-6302) 217 [Stephen Henson] 218 219 *) OOB write in BN_bn2dec() 220 221 The function BN_bn2dec() does not check the return value of BN_div_word(). 222 This can cause an OOB write if an application uses this function with an 223 overly large BIGNUM. This could be a problem if an overly large certificate 224 or CRL is printed out from an untrusted source. TLS is not affected because 225 record limits will reject an oversized certificate before it is parsed. 226 227 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 228 (CVE-2016-2182) 229 [Stephen Henson] 230 231 *) OOB read in TS_OBJ_print_bio() 232 233 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 234 the total length the OID text representation would use and not the amount 235 of data written. This will result in OOB reads when large OIDs are 236 presented. 237 238 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 239 (CVE-2016-2180) 240 [Stephen Henson] 241 242 *) Pointer arithmetic undefined behaviour 243 244 Avoid some undefined pointer arithmetic 245 246 A common idiom in the codebase is to check limits in the following manner: 247 "p + len > limit" 248 249 Where "p" points to some malloc'd data of SIZE bytes and 250 limit == p + SIZE 251 252 "len" here could be from some externally supplied data (e.g. from a TLS 253 message). 254 255 The rules of C pointer arithmetic are such that "p + len" is only well 256 defined where len <= SIZE. Therefore the above idiom is actually 257 undefined behaviour. 258 259 For example this could cause problems if some malloc implementation 260 provides an address for "p" such that "p + len" actually overflows for 261 values of len that are too big and therefore p + len < limit. 262 263 This issue was reported to OpenSSL by Guido Vranken 264 (CVE-2016-2177) 265 [Matt Caswell] 266 267 *) Constant time flag not preserved in DSA signing 268 269 Operations in the DSA signing algorithm should run in constant time in 270 order to avoid side channel attacks. A flaw in the OpenSSL DSA 271 implementation means that a non-constant time codepath is followed for 272 certain operations. This has been demonstrated through a cache-timing 273 attack to be sufficient for an attacker to recover the private DSA key. 274 275 This issue was reported by C��sar Pereida (Aalto University), Billy Brumley 276 (Tampere University of Technology), and Yuval Yarom (The University of 277 Adelaide and NICTA). 278 (CVE-2016-2178) 279 [C��sar Pereida] 280 281 *) DTLS buffered message DoS 282 283 In a DTLS connection where handshake messages are delivered out-of-order 284 those messages that OpenSSL is not yet ready to process will be buffered 285 for later use. Under certain circumstances, a flaw in the logic means that 286 those messages do not get removed from the buffer even though the handshake 287 has been completed. An attacker could force up to approx. 15 messages to 288 remain in the buffer when they are no longer required. These messages will 289 be cleared when the DTLS connection is closed. The default maximum size for 290 a message is 100k. Therefore the attacker could force an additional 1500k 291 to be consumed per connection. By opening many simulataneous connections an 292 attacker could cause a DoS attack through memory exhaustion. 293 294 This issue was reported to OpenSSL by Quan Luo. 295 (CVE-2016-2179) 296 [Matt Caswell] 297 298 *) DTLS replay protection DoS 299 300 A flaw in the DTLS replay attack protection mechanism means that records 301 that arrive for future epochs update the replay protection "window" before 302 the MAC for the record has been validated. This could be exploited by an 303 attacker by sending a record for the next epoch (which does not have to 304 decrypt or have a valid MAC), with a very large sequence number. This means 305 that all subsequent legitimate packets are dropped causing a denial of 306 service for a specific DTLS connection. 307 308 This issue was reported to OpenSSL by the OCAP audit team. 309 (CVE-2016-2181) 310 [Matt Caswell] 311 312 *) Certificate message OOB reads 313 314 In OpenSSL 1.0.2 and earlier some missing message length checks can result 315 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 316 theoretical DoS risk but this has not been observed in practice on common 317 platforms. 318 319 The messages affected are client certificate, client certificate request 320 and server certificate. As a result the attack can only be performed 321 against a client or a server which enables client authentication. 322 323 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 324 (CVE-2016-6306) 325 [Stephen Henson] 326 327 Changes between 1.0.2g and 1.0.2h [3 May 2016] 328 329 *) Prevent padding oracle in AES-NI CBC MAC check 330 331 A MITM attacker can use a padding oracle attack to decrypt traffic 332 when the connection uses an AES CBC cipher and the server support 333 AES-NI. 334 335 This issue was introduced as part of the fix for Lucky 13 padding 336 attack (CVE-2013-0169). The padding check was rewritten to be in 337 constant time by making sure that always the same bytes are read and 338 compared against either the MAC or padding bytes. But it no longer 339 checked that there was enough data to have both the MAC and padding 340 bytes. 341 342 This issue was reported by Juraj Somorovsky using TLS-Attacker. 343 (CVE-2016-2107) 344 [Kurt Roeckx] 345 346 *) Fix EVP_EncodeUpdate overflow 347 348 An overflow can occur in the EVP_EncodeUpdate() function which is used for 349 Base64 encoding of binary data. If an attacker is able to supply very large 350 amounts of input data then a length check can overflow resulting in a heap 351 corruption. 352 353 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 354 the PEM_write_bio* family of functions. These are mainly used within the 355 OpenSSL command line applications, so any application which processes data 356 from an untrusted source and outputs it as a PEM file should be considered 357 vulnerable to this issue. User applications that call these APIs directly 358 with large amounts of untrusted data may also be vulnerable. 359 360 This issue was reported by Guido Vranken. 361 (CVE-2016-2105) 362 [Matt Caswell] 363 364 *) Fix EVP_EncryptUpdate overflow 365 366 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 367 is able to supply very large amounts of input data after a previous call to 368 EVP_EncryptUpdate() with a partial block then a length check can overflow 369 resulting in a heap corruption. Following an analysis of all OpenSSL 370 internal usage of the EVP_EncryptUpdate() function all usage is one of two 371 forms. The first form is where the EVP_EncryptUpdate() call is known to be 372 the first called function after an EVP_EncryptInit(), and therefore that 373 specific call must be safe. The second form is where the length passed to 374 EVP_EncryptUpdate() can be seen from the code to be some small value and 375 therefore there is no possibility of an overflow. Since all instances are 376 one of these two forms, it is believed that there can be no overflows in 377 internal code due to this problem. It should be noted that 378 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 379 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 380 of these calls have also been analysed too and it is believed there are no 381 instances in internal usage where an overflow could occur. 382 383 This issue was reported by Guido Vranken. 384 (CVE-2016-2106) 385 [Matt Caswell] 386 387 *) Prevent ASN.1 BIO excessive memory allocation 388 389 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 390 a short invalid encoding can casuse allocation of large amounts of memory 391 potentially consuming excessive resources or exhausting memory. 392 393 Any application parsing untrusted data through d2i BIO functions is 394 affected. The memory based functions such as d2i_X509() are *not* affected. 395 Since the memory based functions are used by the TLS library, TLS 396 applications are not affected. 397 398 This issue was reported by Brian Carpenter. 399 (CVE-2016-2109) 400 [Stephen Henson] 401 402 *) EBCDIC overread 403 404 ASN1 Strings that are over 1024 bytes can cause an overread in applications 405 using the X509_NAME_oneline() function on EBCDIC systems. This could result 406 in arbitrary stack data being returned in the buffer. 407 408 This issue was reported by Guido Vranken. 409 (CVE-2016-2176) 410 [Matt Caswell] 411 412 *) Modify behavior of ALPN to invoke callback after SNI/servername 413 callback, such that updates to the SSL_CTX affect ALPN. 414 [Todd Short] 415 416 *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the 417 default. 418 [Kurt Roeckx] 419 420 *) Only remove the SSLv2 methods with the no-ssl2-method option. When the 421 methods are enabled and ssl2 is disabled the methods return NULL. 422 [Kurt Roeckx] 423 424 Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 425 426 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 427 Builds that are not configured with "enable-weak-ssl-ciphers" will not 428 provide any "EXPORT" or "LOW" strength ciphers. 429 [Viktor Dukhovni] 430 431 * Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 432 is by default disabled at build-time. Builds that are not configured with 433 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 434 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 435 will need to explicitly call either of: 436 437 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 438 or 439 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 440 441 as appropriate. Even if either of those is used, or the application 442 explicitly uses the version-specific SSLv2_method() or its client and 443 server variants, SSLv2 ciphers vulnerable to exhaustive search key 444 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 445 ciphers, and SSLv2 56-bit DES are no longer available. 446 (CVE-2016-0800) 447 [Viktor Dukhovni] 448 449 *) Fix a double-free in DSA code 450 451 A double free bug was discovered when OpenSSL parses malformed DSA private 452 keys and could lead to a DoS attack or memory corruption for applications 453 that receive DSA private keys from untrusted sources. This scenario is 454 considered rare. 455 456 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 457 libFuzzer. 458 (CVE-2016-0705) 459 [Stephen Henson] 460 461 *) Disable SRP fake user seed to address a server memory leak. 462 463 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 464 465 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 466 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 467 was changed to ignore the "fake user" SRP seed, even if the seed 468 is configured. 469 470 Users should use SRP_VBASE_get1_by_user instead. Note that in 471 SRP_VBASE_get1_by_user, caller must free the returned value. Note 472 also that even though configuring the SRP seed attempts to hide 473 invalid usernames by continuing the handshake with fake 474 credentials, this behaviour is not constant time and no strong 475 guarantees are made that the handshake is indistinguishable from 476 that of a valid user. 477 (CVE-2016-0798) 478 [Emilia K��sper] 479 480 *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 481 482 In the BN_hex2bn function the number of hex digits is calculated using an 483 int value |i|. Later |bn_expand| is called with a value of |i * 4|. For 484 large values of |i| this can result in |bn_expand| not allocating any 485 memory because |i * 4| is negative. This can leave the internal BIGNUM data 486 field as NULL leading to a subsequent NULL ptr deref. For very large values 487 of |i|, the calculation |i * 4| could be a positive value smaller than |i|. 488 In this case memory is allocated to the internal BIGNUM data field, but it 489 is insufficiently sized leading to heap corruption. A similar issue exists 490 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 491 is ever called by user applications with very large untrusted hex/dec data. 492 This is anticipated to be a rare occurrence. 493 494 All OpenSSL internal usage of these functions use data that is not expected 495 to be untrusted, e.g. config file data or application command line 496 arguments. If user developed applications generate config file data based 497 on untrusted data then it is possible that this could also lead to security 498 consequences. This is also anticipated to be rare. 499 500 This issue was reported to OpenSSL by Guido Vranken. 501 (CVE-2016-0797) 502 [Matt Caswell] 503 504 *) Fix memory issues in BIO_*printf functions 505 506 The internal |fmtstr| function used in processing a "%s" format string in 507 the BIO_*printf functions could overflow while calculating the length of a 508 string and cause an OOB read when printing very long strings. 509 510 Additionally the internal |doapr_outch| function can attempt to write to an 511 OOB memory location (at an offset from the NULL pointer) in the event of a 512 memory allocation failure. In 1.0.2 and below this could be caused where 513 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 514 could be in processing a very long "%s" format string. Memory leaks can 515 also occur. 516 517 The first issue may mask the second issue dependent on compiler behaviour. 518 These problems could enable attacks where large amounts of untrusted data 519 is passed to the BIO_*printf functions. If applications use these functions 520 in this way then they could be vulnerable. OpenSSL itself uses these 521 functions when printing out human-readable dumps of ASN.1 data. Therefore 522 applications that print this data could be vulnerable if the data is from 523 untrusted sources. OpenSSL command line applications could also be 524 vulnerable where they print out ASN.1 data, or if untrusted data is passed 525 as command line arguments. 526 527 Libssl is not considered directly vulnerable. Additionally certificates etc 528 received via remote connections via libssl are also unlikely to be able to 529 trigger these issues because of message size limits enforced within libssl. 530 531 This issue was reported to OpenSSL Guido Vranken. 532 (CVE-2016-0799) 533 [Matt Caswell] 534 535 *) Side channel attack on modular exponentiation 536 537 A side-channel attack was found which makes use of cache-bank conflicts on 538 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 539 of RSA keys. The ability to exploit this issue is limited as it relies on 540 an attacker who has control of code in a thread running on the same 541 hyper-threaded core as the victim thread which is performing decryptions. 542 543 This issue was reported to OpenSSL by Yuval Yarom, The University of 544 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 545 Nadia Heninger, University of Pennsylvania with more information at 546 http://cachebleed.info. 547 (CVE-2016-0702) 548 [Andy Polyakov] 549 550 *) Change the req app to generate a 2048-bit RSA/DSA key by default, 551 if no keysize is specified with default_bits. This fixes an 552 omission in an earlier change that changed all RSA/DSA key generation 553 apps to use 2048 bits by default. 554 [Emilia K��sper] 555 556 Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 557 558 *) DH small subgroups 559 560 Historically OpenSSL only ever generated DH parameters based on "safe" 561 primes. More recently (in version 1.0.2) support was provided for 562 generating X9.42 style parameter files such as those required for RFC 5114 563 support. The primes used in such files may not be "safe". Where an 564 application is using DH configured with parameters based on primes that are 565 not "safe" then an attacker could use this fact to find a peer's private 566 DH exponent. This attack requires that the attacker complete multiple 567 handshakes in which the peer uses the same private DH exponent. For example 568 this could be used to discover a TLS server's private DH exponent if it's 569 reusing the private DH exponent or it's using a static DH ciphersuite. 570 571 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 572 TLS. It is not on by default. If the option is not set then the server 573 reuses the same private DH exponent for the life of the server process and 574 would be vulnerable to this attack. It is believed that many popular 575 applications do set this option and would therefore not be at risk. 576 577 The fix for this issue adds an additional check where a "q" parameter is 578 available (as is the case in X9.42 based parameters). This detects the 579 only known attack, and is the only possible defense for static DH 580 ciphersuites. This could have some performance impact. 581 582 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 583 default and cannot be disabled. This could have some performance impact. 584 585 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 586 (CVE-2016-0701) 587 [Matt Caswell] 588 589 *) SSLv2 doesn't block disabled ciphers 590 591 A malicious client can negotiate SSLv2 ciphers that have been disabled on 592 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 593 been disabled, provided that the SSLv2 protocol was not also disabled via 594 SSL_OP_NO_SSLv2. 595 596 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 597 and Sebastian Schinzel. 598 (CVE-2015-3197) 599 [Viktor Dukhovni] 600 601 *) Reject DH handshakes with parameters shorter than 1024 bits. 602 [Kurt Roeckx] 603 604 Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 605 606 *) BN_mod_exp may produce incorrect results on x86_64 607 608 There is a carry propagating bug in the x86_64 Montgomery squaring 609 procedure. No EC algorithms are affected. Analysis suggests that attacks 610 against RSA and DSA as a result of this defect would be very difficult to 611 perform and are not believed likely. Attacks against DH are considered just 612 feasible (although very difficult) because most of the work necessary to 613 deduce information about a private key may be performed offline. The amount 614 of resources required for such an attack would be very significant and 615 likely only accessible to a limited number of attackers. An attacker would 616 additionally need online access to an unpatched system using the target 617 private key in a scenario with persistent DH parameters and a private 618 key that is shared between multiple clients. For example this can occur by 619 default in OpenSSL DHE based SSL/TLS ciphersuites. 620 621 This issue was reported to OpenSSL by Hanno B��ck. 622 (CVE-2015-3193) 623 [Andy Polyakov] 624 625 *) Certificate verify crash with missing PSS parameter 626 627 The signature verification routines will crash with a NULL pointer 628 dereference if presented with an ASN.1 signature using the RSA PSS 629 algorithm and absent mask generation function parameter. Since these 630 routines are used to verify certificate signature algorithms this can be 631 used to crash any certificate verification operation and exploited in a 632 DoS attack. Any application which performs certificate verification is 633 vulnerable including OpenSSL clients and servers which enable client 634 authentication. 635 636 This issue was reported to OpenSSL by Lo��c Jonas Etienne (Qnective AG). 637 (CVE-2015-3194) 638 [Stephen Henson] 639 640 *) X509_ATTRIBUTE memory leak 641 642 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 643 memory. This structure is used by the PKCS#7 and CMS routines so any 644 application which reads PKCS#7 or CMS data from untrusted sources is 645 affected. SSL/TLS is not affected. 646 647 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 648 libFuzzer. 649 (CVE-2015-3195) 650 [Stephen Henson] 651 652 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 653 This changes the decoding behaviour for some invalid messages, 654 though the change is mostly in the more lenient direction, and 655 legacy behaviour is preserved as much as possible. 656 [Emilia K��sper] 657 658 *) In DSA_generate_parameters_ex, if the provided seed is too short, 659 use a random seed, as already documented. 660 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 661 662 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 663 664 *) Alternate chains certificate forgery 665 666 During certificate verfification, OpenSSL will attempt to find an 667 alternative certificate chain if the first attempt to build such a chain 668 fails. An error in the implementation of this logic can mean that an 669 attacker could cause certain checks on untrusted certificates to be 670 bypassed, such as the CA flag, enabling them to use a valid leaf 671 certificate to act as a CA and "issue" an invalid certificate. 672 673 This issue was reported to OpenSSL by Adam Langley/David Benjamin 674 (Google/BoringSSL). 675 (CVE-2015-1793) 676 [Matt Caswell] 677 678 *) Race condition handling PSK identify hint 679 680 If PSK identity hints are received by a multi-threaded client then 681 the values are wrongly updated in the parent SSL_CTX structure. This can 682 result in a race condition potentially leading to a double free of the 683 identify hint data. 684 (CVE-2015-3196) 685 [Stephen Henson] 686 687 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 688 689 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 690 incompatibility in the handling of HMAC. The previous ABI has now been 691 restored. 692 693 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 694 695 *) Malformed ECParameters causes infinite loop 696 697 When processing an ECParameters structure OpenSSL enters an infinite loop 698 if the curve specified is over a specially malformed binary polynomial 699 field. 700 701 This can be used to perform denial of service against any 702 system which processes public keys, certificate requests or 703 certificates. This includes TLS clients and TLS servers with 704 client authentication enabled. 705 706 This issue was reported to OpenSSL by Joseph Barr-Pixton. 707 (CVE-2015-1788) 708 [Andy Polyakov] 709 710 *) Exploitable out-of-bounds read in X509_cmp_time 711 712 X509_cmp_time does not properly check the length of the ASN1_TIME 713 string and can read a few bytes out of bounds. In addition, 714 X509_cmp_time accepts an arbitrary number of fractional seconds in the 715 time string. 716 717 An attacker can use this to craft malformed certificates and CRLs of 718 various sizes and potentially cause a segmentation fault, resulting in 719 a DoS on applications that verify certificates or CRLs. TLS clients 720 that verify CRLs are affected. TLS clients and servers with client 721 authentication enabled may be affected if they use custom verification 722 callbacks. 723 724 This issue was reported to OpenSSL by Robert Swiecki (Google), and 725 independently by Hanno B��ck. 726 (CVE-2015-1789) 727 [Emilia K��sper] 728 729 *) PKCS7 crash with missing EnvelopedContent 730 731 The PKCS#7 parsing code does not handle missing inner EncryptedContent 732 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 733 with missing content and trigger a NULL pointer dereference on parsing. 734 735 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 736 structures from untrusted sources are affected. OpenSSL clients and 737 servers are not affected. 738 739 This issue was reported to OpenSSL by Michal Zalewski (Google). 740 (CVE-2015-1790) 741 [Emilia K��sper] 742 743 *) CMS verify infinite loop with unknown hash function 744 745 When verifying a signedData message the CMS code can enter an infinite loop 746 if presented with an unknown hash function OID. This can be used to perform 747 denial of service against any system which verifies signedData messages using 748 the CMS code. 749 This issue was reported to OpenSSL by Johannes Bauer. 750 (CVE-2015-1792) 751 [Stephen Henson] 752 753 *) Race condition handling NewSessionTicket 754 755 If a NewSessionTicket is received by a multi-threaded client when attempting to 756 reuse a previous ticket then a race condition can occur potentially leading to 757 a double free of the ticket data. 758 (CVE-2015-1791) 759 [Matt Caswell] 760 761 *) Removed support for the two export grade static DH ciphersuites 762 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 763 were newly added (along with a number of other static DH ciphersuites) to 764 1.0.2. However the two export ones have *never* worked since they were 765 introduced. It seems strange in any case to be adding new export 766 ciphersuites, and given "logjam" it also does not seem correct to fix them. 767 [Matt Caswell] 768 769 *) Only support 256-bit or stronger elliptic curves with the 770 'ecdh_auto' setting (server) or by default (client). Of supported 771 curves, prefer P-256 (both). 772 [Emilia Kasper] 773 774 *) Reject DH handshakes with parameters shorter than 768 bits. 775 [Kurt Roeckx and Emilia Kasper] 776 777 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 778 779 *) ClientHello sigalgs DoS fix 780 781 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 782 invalid signature algorithms extension a NULL pointer dereference will 783 occur. This can be exploited in a DoS attack against the server. 784 785 This issue was was reported to OpenSSL by David Ramos of Stanford 786 University. 787 (CVE-2015-0291) 788 [Stephen Henson and Matt Caswell] 789 790 *) Multiblock corrupted pointer fix 791 792 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 793 feature only applies on 64 bit x86 architecture platforms that support AES 794 NI instructions. A defect in the implementation of "multiblock" can cause 795 OpenSSL's internal write buffer to become incorrectly set to NULL when 796 using non-blocking IO. Typically, when the user application is using a 797 socket BIO for writing, this will only result in a failed connection. 798 However if some other BIO is used then it is likely that a segmentation 799 fault will be triggered, thus enabling a potential DoS attack. 800 801 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 802 (CVE-2015-0290) 803 [Matt Caswell] 804 805 *) Segmentation fault in DTLSv1_listen fix 806 807 The DTLSv1_listen function is intended to be stateless and processes the 808 initial ClientHello from many peers. It is common for user code to loop 809 over the call to DTLSv1_listen until a valid ClientHello is received with 810 an associated cookie. A defect in the implementation of DTLSv1_listen means 811 that state is preserved in the SSL object from one invocation to the next 812 that can lead to a segmentation fault. Errors processing the initial 813 ClientHello can trigger this scenario. An example of such an error could be 814 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 815 server. 816 817 This issue was reported to OpenSSL by Per Allansson. 818 (CVE-2015-0207) 819 [Matt Caswell] 820 821 *) Segmentation fault in ASN1_TYPE_cmp fix 822 823 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 824 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 825 certificate signature algorithm consistency this can be used to crash any 826 certificate verification operation and exploited in a DoS attack. Any 827 application which performs certificate verification is vulnerable including 828 OpenSSL clients and servers which enable client authentication. 829 (CVE-2015-0286) 830 [Stephen Henson] 831 832 *) Segmentation fault for invalid PSS parameters fix 833 834 The signature verification routines will crash with a NULL pointer 835 dereference if presented with an ASN.1 signature using the RSA PSS 836 algorithm and invalid parameters. Since these routines are used to verify 837 certificate signature algorithms this can be used to crash any 838 certificate verification operation and exploited in a DoS attack. Any 839 application which performs certificate verification is vulnerable including 840 OpenSSL clients and servers which enable client authentication. 841 842 This issue was was reported to OpenSSL by Brian Carpenter. 843 (CVE-2015-0208) 844 [Stephen Henson] 845 846 *) ASN.1 structure reuse memory corruption fix 847 848 Reusing a structure in ASN.1 parsing may allow an attacker to cause 849 memory corruption via an invalid write. Such reuse is and has been 850 strongly discouraged and is believed to be rare. 851 852 Applications that parse structures containing CHOICE or ANY DEFINED BY 853 components may be affected. Certificate parsing (d2i_X509 and related 854 functions) are however not affected. OpenSSL clients and servers are 855 not affected. 856 (CVE-2015-0287) 857 [Stephen Henson] 858 859 *) PKCS7 NULL pointer dereferences fix 860 861 The PKCS#7 parsing code does not handle missing outer ContentInfo 862 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 863 missing content and trigger a NULL pointer dereference on parsing. 864 865 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 866 otherwise parse PKCS#7 structures from untrusted sources are 867 affected. OpenSSL clients and servers are not affected. 868 869 This issue was reported to OpenSSL by Michal Zalewski (Google). 870 (CVE-2015-0289) 871 [Emilia K��sper] 872 873 *) DoS via reachable assert in SSLv2 servers fix 874 875 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 876 servers that both support SSLv2 and enable export cipher suites by sending 877 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 878 879 This issue was discovered by Sean Burford (Google) and Emilia K��sper 880 (OpenSSL development team). 881 (CVE-2015-0293) 882 [Emilia K��sper] 883 884 *) Empty CKE with client auth and DHE fix 885 886 If client auth is used then a server can seg fault in the event of a DHE 887 ciphersuite being selected and a zero length ClientKeyExchange message 888 being sent by the client. This could be exploited in a DoS attack. 889 (CVE-2015-1787) 890 [Matt Caswell] 891 892 *) Handshake with unseeded PRNG fix 893 894 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 895 with an unseeded PRNG. The conditions are: 896 - The client is on a platform where the PRNG has not been seeded 897 automatically, and the user has not seeded manually 898 - A protocol specific client method version has been used (i.e. not 899 SSL_client_methodv23) 900 - A ciphersuite is used that does not require additional random data from 901 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 902 903 If the handshake succeeds then the client random that has been used will 904 have been generated from a PRNG with insufficient entropy and therefore the 905 output may be predictable. 906 907 For example using the following command with an unseeded openssl will 908 succeed on an unpatched platform: 909 910 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 911 (CVE-2015-0285) 912 [Matt Caswell] 913 914 *) Use After Free following d2i_ECPrivatekey error fix 915 916 A malformed EC private key file consumed via the d2i_ECPrivateKey function 917 could cause a use after free condition. This, in turn, could cause a double 918 free in several private key parsing functions (such as d2i_PrivateKey 919 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 920 for applications that receive EC private keys from untrusted 921 sources. This scenario is considered rare. 922 923 This issue was discovered by the BoringSSL project and fixed in their 924 commit 517073cd4b. 925 (CVE-2015-0209) 926 [Matt Caswell] 927 928 *) X509_to_X509_REQ NULL pointer deref fix 929 930 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 931 the certificate key is invalid. This function is rarely used in practice. 932 933 This issue was discovered by Brian Carpenter. 934 (CVE-2015-0288) 935 [Stephen Henson] 936 937 *) Removed the export ciphers from the DEFAULT ciphers 938 [Kurt Roeckx] 939 940 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 941 942 *) Change RSA and DH/DSA key generation apps to generate 2048-bit 943 keys by default. 944 [Kurt Roeckx] 945 946 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 947 ARMv5 through ARMv8, as opposite to "locking" it to single one. 948 So far those who have to target multiple plaforms would compromise 949 and argue that binary targeting say ARMv5 would still execute on 950 ARMv8. "Universal" build resolves this compromise by providing 951 near-optimal performance even on newer platforms. 952 [Andy Polyakov] 953 954 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 955 (other platforms pending). 956 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 957 958 *) Add support for the SignedCertificateTimestampList certificate and 959 OCSP response extensions from RFC6962. 960 [Rob Stradling] 961 962 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 963 for corner cases. (Certain input points at infinity could lead to 964 bogus results, with non-infinity inputs mapped to infinity too.) 965 [Bodo Moeller] 966 967 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 968 This covers AES, SHA256/512 and GHASH. "Initial" means that most 969 common cases are optimized and there still is room for further 970 improvements. Vector Permutation AES for Altivec is also added. 971 [Andy Polyakov] 972 973 *) Add support for little-endian ppc64 Linux target. 974 [Marcelo Cerri (IBM)] 975 976 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 977 SHA1, SHA256 and GHASH. "Initial" means that most common cases 978 are optimized and there still is room for further improvements. 979 Both 32- and 64-bit modes are supported. 980 [Andy Polyakov, Ard Biesheuvel (Linaro)] 981 982 *) Improved ARMv7 NEON support. 983 [Andy Polyakov] 984 985 *) Support for SPARC Architecture 2011 crypto extensions, first 986 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 987 SHA256/512, MD5, GHASH and modular exponentiation. 988 [Andy Polyakov, David Miller] 989 990 *) Accelerated modular exponentiation for Intel processors, a.k.a. 991 RSAZ. 992 [Shay Gueron & Vlad Krasnov (Intel Corp)] 993 994 *) Support for new and upcoming Intel processors, including AVX2, 995 BMI and SHA ISA extensions. This includes additional "stitched" 996 implementations, AESNI-SHA256 and GCM, and multi-buffer support 997 for TLS encrypt. 998 999 This work was sponsored by Intel Corp. 1000 [Andy Polyakov] 1001 1002 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 1003 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 1004 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 1005 [Steve Henson] 1006 1007 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 1008 this fixes a limiation in previous versions of OpenSSL. 1009 [Steve Henson] 1010 1011 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 1012 MGF1 digest and OAEP label. 1013 [Steve Henson] 1014 1015 *) Add EVP support for key wrapping algorithms, to avoid problems with 1016 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 1017 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 1018 algorithms and include tests cases. 1019 [Steve Henson] 1020 1021 *) Add functions to allocate and set the fields of an ECDSA_METHOD 1022 structure. 1023 [Douglas E. Engert, Steve Henson] 1024 1025 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 1026 difference in days and seconds between two tm or ASN1_TIME structures. 1027 [Steve Henson] 1028 1029 *) Add -rev test option to s_server to just reverse order of characters 1030 received by client and send back to server. Also prints an abbreviated 1031 summary of the connection parameters. 1032 [Steve Henson] 1033 1034 *) New option -brief for s_client and s_server to print out a brief summary 1035 of connection parameters. 1036 [Steve Henson] 1037 1038 *) Add callbacks for arbitrary TLS extensions. 1039 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 1040 1041 *) New option -crl_download in several openssl utilities to download CRLs 1042 from CRLDP extension in certificates. 1043 [Steve Henson] 1044 1045 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 1046 [Steve Henson] 1047 1048 *) New function X509_CRL_diff to generate a delta CRL from the difference 1049 of two full CRLs. Add support to "crl" utility. 1050 [Steve Henson] 1051 1052 *) New functions to set lookup_crls function and to retrieve 1053 X509_STORE from X509_STORE_CTX. 1054 [Steve Henson] 1055 1056 *) Print out deprecated issuer and subject unique ID fields in 1057 certificates. 1058 [Steve Henson] 1059 1060 *) Extend OCSP I/O functions so they can be used for simple general purpose 1061 HTTP as well as OCSP. New wrapper function which can be used to download 1062 CRLs using the OCSP API. 1063 [Steve Henson] 1064 1065 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 1066 [Steve Henson] 1067 1068 *) SSL_CONF* functions. These provide a common framework for application 1069 configuration using configuration files or command lines. 1070 [Steve Henson] 1071 1072 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 1073 message callback and prints the results. Needs compile time option 1074 "enable-ssl-trace". New options to s_client and s_server to enable 1075 tracing. 1076 [Steve Henson] 1077 1078 *) New ctrl and macro to retrieve supported points extensions. 1079 Print out extension in s_server and s_client. 1080 [Steve Henson] 1081 1082 *) New functions to retrieve certificate signature and signature 1083 OID NID. 1084 [Steve Henson] 1085 1086 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 1087 client to OpenSSL. 1088 [Steve Henson] 1089 1090 *) New Suite B modes for TLS code. These use and enforce the requirements 1091 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 1092 only use Suite B curves. The Suite B modes can be set by using the 1093 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 1094 [Steve Henson] 1095 1096 *) New chain verification flags for Suite B levels of security. Check 1097 algorithms are acceptable when flags are set in X509_verify_cert. 1098 [Steve Henson] 1099 1100 *) Make tls1_check_chain return a set of flags indicating checks passed 1101 by a certificate chain. Add additional tests to handle client 1102 certificates: checks for matching certificate type and issuer name 1103 comparison. 1104 [Steve Henson] 1105 1106 *) If an attempt is made to use a signature algorithm not in the peer 1107 preference list abort the handshake. If client has no suitable 1108 signature algorithms in response to a certificate request do not 1109 use the certificate. 1110 [Steve Henson] 1111 1112 *) If server EC tmp key is not in client preference list abort handshake. 1113 [Steve Henson] 1114 1115 *) Add support for certificate stores in CERT structure. This makes it 1116 possible to have different stores per SSL structure or one store in 1117 the parent SSL_CTX. Include distint stores for certificate chain 1118 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 1119 to build and store a certificate chain in CERT structure: returing 1120 an error if the chain cannot be built: this will allow applications 1121 to test if a chain is correctly configured. 1122 1123 Note: if the CERT based stores are not set then the parent SSL_CTX 1124 store is used to retain compatibility with existing behaviour. 1125 1126 [Steve Henson] 1127 1128 *) New function ssl_set_client_disabled to set a ciphersuite disabled 1129 mask based on the current session, check mask when sending client 1130 hello and checking the requested ciphersuite. 1131 [Steve Henson] 1132 1133 *) New ctrls to retrieve and set certificate types in a certificate 1134 request message. Print out received values in s_client. If certificate 1135 types is not set with custom values set sensible values based on 1136 supported signature algorithms. 1137 [Steve Henson] 1138 1139 *) Support for distinct client and server supported signature algorithms. 1140 [Steve Henson] 1141 1142 *) Add certificate callback. If set this is called whenever a certificate 1143 is required by client or server. An application can decide which 1144 certificate chain to present based on arbitrary criteria: for example 1145 supported signature algorithms. Add very simple example to s_server. 1146 This fixes many of the problems and restrictions of the existing client 1147 certificate callback: for example you can now clear an existing 1148 certificate and specify the whole chain. 1149 [Steve Henson] 1150 1151 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 1152 the certificate can be used for (if anything). Set valid_flags field 1153 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 1154 to have similar checks in it. 1155 1156 Add new "cert_flags" field to CERT structure and include a "strict mode". 1157 This enforces some TLS certificate requirements (such as only permitting 1158 certificate signature algorithms contained in the supported algorithms 1159 extension) which some implementations ignore: this option should be used 1160 with caution as it could cause interoperability issues. 1161 [Steve Henson] 1162 1163 *) Update and tidy signature algorithm extension processing. Work out 1164 shared signature algorithms based on preferences and peer algorithms 1165 and print them out in s_client and s_server. Abort handshake if no 1166 shared signature algorithms. 1167 [Steve Henson] 1168 1169 *) Add new functions to allow customised supported signature algorithms 1170 for SSL and SSL_CTX structures. Add options to s_client and s_server 1171 to support them. 1172 [Steve Henson] 1173 1174 *) New function SSL_certs_clear() to delete all references to certificates 1175 from an SSL structure. Before this once a certificate had been added 1176 it couldn't be removed. 1177 [Steve Henson] 1178 1179 *) Integrate hostname, email address and IP address checking with certificate 1180 verification. New verify options supporting checking in opensl utility. 1181 [Steve Henson] 1182 1183 *) Fixes and wildcard matching support to hostname and email checking 1184 functions. Add manual page. 1185 [Florian Weimer (Red Hat Product Security Team)] 1186 1187 *) New functions to check a hostname email or IP address against a 1188 certificate. Add options x509 utility to print results of checks against 1189 a certificate. 1190 [Steve Henson] 1191 1192 *) Fix OCSP checking. 1193 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 1194 1195 *) Initial experimental support for explicitly trusted non-root CAs. 1196 OpenSSL still tries to build a complete chain to a root but if an 1197 intermediate CA has a trust setting included that is used. The first 1198 setting is used: whether to trust (e.g., -addtrust option to the x509 1199 utility) or reject. 1200 [Steve Henson] 1201 1202 *) Add -trusted_first option which attempts to find certificates in the 1203 trusted store even if an untrusted chain is also supplied. 1204 [Steve Henson] 1205 1206 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 1207 platform support for Linux and Android. 1208 [Andy Polyakov] 1209 1210 *) Support for linux-x32, ILP32 environment in x86_64 framework. 1211 [Andy Polyakov] 1212 1213 *) Experimental multi-implementation support for FIPS capable OpenSSL. 1214 When in FIPS mode the approved implementations are used as normal, 1215 when not in FIPS mode the internal unapproved versions are used instead. 1216 This means that the FIPS capable OpenSSL isn't forced to use the 1217 (often lower perfomance) FIPS implementations outside FIPS mode. 1218 [Steve Henson] 1219 1220 *) Transparently support X9.42 DH parameters when calling 1221 PEM_read_bio_DHparameters. This means existing applications can handle 1222 the new parameter format automatically. 1223 [Steve Henson] 1224 1225 *) Initial experimental support for X9.42 DH parameter format: mainly 1226 to support use of 'q' parameter for RFC5114 parameters. 1227 [Steve Henson] 1228 1229 *) Add DH parameters from RFC5114 including test data to dhtest. 1230 [Steve Henson] 1231 1232 *) Support for automatic EC temporary key parameter selection. If enabled 1233 the most preferred EC parameters are automatically used instead of 1234 hardcoded fixed parameters. Now a server just has to call: 1235 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 1236 support ECDH and use the most appropriate parameters. 1237 [Steve Henson] 1238 1239 *) Enhance and tidy EC curve and point format TLS extension code. Use 1240 static structures instead of allocation if default values are used. 1241 New ctrls to set curves we wish to support and to retrieve shared curves. 1242 Print out shared curves in s_server. New options to s_server and s_client 1243 to set list of supported curves. 1244 [Steve Henson] 1245 1246 *) New ctrls to retrieve supported signature algorithms and 1247 supported curve values as an array of NIDs. Extend openssl utility 1248 to print out received values. 1249 [Steve Henson] 1250 1251 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 1252 between NIDs and the more common NIST names such as "P-256". Enhance 1253 ecparam utility and ECC method to recognise the NIST names for curves. 1254 [Steve Henson] 1255 1256 *) Enhance SSL/TLS certificate chain handling to support different 1257 chains for each certificate instead of one chain in the parent SSL_CTX. 1258 [Steve Henson] 1259 1260 *) Support for fixed DH ciphersuite client authentication: where both 1261 server and client use DH certificates with common parameters. 1262 [Steve Henson] 1263 1264 *) Support for fixed DH ciphersuites: those requiring DH server 1265 certificates. 1266 [Steve Henson] 1267 1268 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 1269 the certificate. 1270 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 1271 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 1272 X509_CINF_get_signature were reverted post internal team review. 1273 1274 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 1275 1276 *) Build fixes for the Windows and OpenVMS platforms 1277 [Matt Caswell and Richard Levitte] 1278 1279 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 1280 1281 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 1282 message can cause a segmentation fault in OpenSSL due to a NULL pointer 1283 dereference. This could lead to a Denial Of Service attack. Thanks to 1284 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 1285 (CVE-2014-3571) 1286 [Steve Henson] 1287 1288 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 1289 dtls1_buffer_record function under certain conditions. In particular this 1290 could occur if an attacker sent repeated DTLS records with the same 1291 sequence number but for the next epoch. The memory leak could be exploited 1292 by an attacker in a Denial of Service attack through memory exhaustion. 1293 Thanks to Chris Mueller for reporting this issue. 1294 (CVE-2015-0206) 1295 [Matt Caswell] 1296 1297 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 1298 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 1299 method would be set to NULL which could later result in a NULL pointer 1300 dereference. Thanks to Frank Schmirler for reporting this issue. 1301 (CVE-2014-3569) 1302 [Kurt Roeckx] 1303 1304 *) Abort handshake if server key exchange message is omitted for ephemeral 1305 ECDH ciphersuites. 1306 1307 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 1308 reporting this issue. 1309 (CVE-2014-3572) 1310 [Steve Henson] 1311 1312 *) Remove non-export ephemeral RSA code on client and server. This code 1313 violated the TLS standard by allowing the use of temporary RSA keys in 1314 non-export ciphersuites and could be used by a server to effectively 1315 downgrade the RSA key length used to a value smaller than the server 1316 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 1317 INRIA or reporting this issue. 1318 (CVE-2015-0204) 1319 [Steve Henson] 1320 1321 *) Fixed issue where DH client certificates are accepted without verification. 1322 An OpenSSL server will accept a DH certificate for client authentication 1323 without the certificate verify message. This effectively allows a client to 1324 authenticate without the use of a private key. This only affects servers 1325 which trust a client certificate authority which issues certificates 1326 containing DH keys: these are extremely rare and hardly ever encountered. 1327 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 1328 this issue. 1329 (CVE-2015-0205) 1330 [Steve Henson] 1331 1332 *) Ensure that the session ID context of an SSL is updated when its 1333 SSL_CTX is updated via SSL_set_SSL_CTX. 1334 1335 The session ID context is typically set from the parent SSL_CTX, 1336 and can vary with the CTX. 1337 [Adam Langley] 1338 1339 *) Fix various certificate fingerprint issues. 1340 1341 By using non-DER or invalid encodings outside the signed portion of a 1342 certificate the fingerprint can be changed without breaking the signature. 1343 Although no details of the signed portion of the certificate can be changed 1344 this can cause problems with some applications: e.g. those using the 1345 certificate fingerprint for blacklists. 1346 1347 1. Reject signatures with non zero unused bits. 1348 1349 If the BIT STRING containing the signature has non zero unused bits reject 1350 the signature. All current signature algorithms require zero unused bits. 1351 1352 2. Check certificate algorithm consistency. 1353 1354 Check the AlgorithmIdentifier inside TBS matches the one in the 1355 certificate signature. NB: this will result in signature failure 1356 errors for some broken certificates. 1357 1358 Thanks to Konrad Kraszewski from Google for reporting this issue. 1359 1360 3. Check DSA/ECDSA signatures use DER. 1361 1362 Reencode DSA/ECDSA signatures and compare with the original received 1363 signature. Return an error if there is a mismatch. 1364 1365 This will reject various cases including garbage after signature 1366 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 1367 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 1368 (negative or with leading zeroes). 1369 1370 Further analysis was conducted and fixes were developed by Stephen Henson 1371 of the OpenSSL core team. 1372 1373 (CVE-2014-8275) 1374 [Steve Henson] 1375 1376 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 1377 results on some platforms, including x86_64. This bug occurs at random 1378 with a very low probability, and is not known to be exploitable in any 1379 way, though its exact impact is difficult to determine. Thanks to Pieter 1380 Wuille (Blockstream) who reported this issue and also suggested an initial 1381 fix. Further analysis was conducted by the OpenSSL development team and 1382 Adam Langley of Google. The final fix was developed by Andy Polyakov of 1383 the OpenSSL core team. 1384 (CVE-2014-3570) 1385 [Andy Polyakov] 1386 1387 *) Do not resume sessions on the server if the negotiated protocol 1388 version does not match the session's version. Resuming with a different 1389 version, while not strictly forbidden by the RFC, is of questionable 1390 sanity and breaks all known clients. 1391 [David Benjamin, Emilia K��sper] 1392 1393 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 1394 early CCS messages during renegotiation. (Note that because 1395 renegotiation is encrypted, this early CCS was not exploitable.) 1396 [Emilia K��sper] 1397 1398 *) Tighten client-side session ticket handling during renegotiation: 1399 ensure that the client only accepts a session ticket if the server sends 1400 the extension anew in the ServerHello. Previously, a TLS client would 1401 reuse the old extension state and thus accept a session ticket if one was 1402 announced in the initial ServerHello. 1403 1404 Similarly, ensure that the client requires a session ticket if one 1405 was advertised in the ServerHello. Previously, a TLS client would 1406 ignore a missing NewSessionTicket message. 1407 [Emilia K��sper] 1408 1409 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 1410 1411 *) SRTP Memory Leak. 1412 1413 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 1414 sends a carefully crafted handshake message, to cause OpenSSL to fail 1415 to free up to 64k of memory causing a memory leak. This could be 1416 exploited in a Denial Of Service attack. This issue affects OpenSSL 1417 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 1418 whether SRTP is used or configured. Implementations of OpenSSL that 1419 have been compiled with OPENSSL_NO_SRTP defined are not affected. 1420 1421 The fix was developed by the OpenSSL team. 1422 (CVE-2014-3513) 1423 [OpenSSL team] 1424 1425 *) Session Ticket Memory Leak. 1426 1427 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 1428 integrity of that ticket is first verified. In the event of a session 1429 ticket integrity check failing, OpenSSL will fail to free memory 1430 causing a memory leak. By sending a large number of invalid session 1431 tickets an attacker could exploit this issue in a Denial Of Service 1432 attack. 1433 (CVE-2014-3567) 1434 [Steve Henson] 1435 1436 *) Build option no-ssl3 is incomplete. 1437 1438 When OpenSSL is configured with "no-ssl3" as a build option, servers 1439 could accept and complete a SSL 3.0 handshake, and clients could be 1440 configured to send them. 1441 (CVE-2014-3568) 1442 [Akamai and the OpenSSL team] 1443 1444 *) Add support for TLS_FALLBACK_SCSV. 1445 Client applications doing fallback retries should call 1446 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 1447 (CVE-2014-3566) 1448 [Adam Langley, Bodo Moeller] 1449 1450 *) Add additional DigestInfo checks. 1451 1452 Reencode DigestInto in DER and check against the original when 1453 verifying RSA signature: this will reject any improperly encoded 1454 DigestInfo structures. 1455 1456 Note: this is a precautionary measure and no attacks are currently known. 1457 1458 [Steve Henson] 1459 1460 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 1461 1462 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 1463 SRP code can be overrun an internal buffer. Add sanity check that 1464 g, A, B < N to SRP code. 1465 1466 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 1467 Group for discovering this issue. 1468 (CVE-2014-3512) 1469 [Steve Henson] 1470 1471 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 1472 TLS 1.0 instead of higher protocol versions when the ClientHello message 1473 is badly fragmented. This allows a man-in-the-middle attacker to force a 1474 downgrade to TLS 1.0 even if both the server and the client support a 1475 higher protocol version, by modifying the client's TLS records. 1476 1477 Thanks to David Benjamin and Adam Langley (Google) for discovering and 1478 researching this issue. 1479 (CVE-2014-3511) 1480 [David Benjamin] 1481 1482 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 1483 to a denial of service attack. A malicious server can crash the client 1484 with a null pointer dereference (read) by specifying an anonymous (EC)DH 1485 ciphersuite and sending carefully crafted handshake messages. 1486 1487 Thanks to Felix Gr��bert (Google) for discovering and researching this 1488 issue. 1489 (CVE-2014-3510) 1490 [Emilia K��sper] 1491 1492 *) By sending carefully crafted DTLS packets an attacker could cause openssl 1493 to leak memory. This can be exploited through a Denial of Service attack. 1494 Thanks to Adam Langley for discovering and researching this issue. 1495 (CVE-2014-3507) 1496 [Adam Langley] 1497 1498 *) An attacker can force openssl to consume large amounts of memory whilst 1499 processing DTLS handshake messages. This can be exploited through a 1500 Denial of Service attack. 1501 Thanks to Adam Langley for discovering and researching this issue. 1502 (CVE-2014-3506) 1503 [Adam Langley] 1504 1505 *) An attacker can force an error condition which causes openssl to crash 1506 whilst processing DTLS packets due to memory being freed twice. This 1507 can be exploited through a Denial of Service attack. 1508 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 1509 this issue. 1510 (CVE-2014-3505) 1511 [Adam Langley] 1512 1513 *) If a multithreaded client connects to a malicious server using a resumed 1514 session and the server sends an ec point format extension it could write 1515 up to 255 bytes to freed memory. 1516 1517 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 1518 issue. 1519 (CVE-2014-3509) 1520 [Gabor Tyukasz] 1521 1522 *) A malicious server can crash an OpenSSL client with a null pointer 1523 dereference (read) by specifying an SRP ciphersuite even though it was not 1524 properly negotiated with the client. This can be exploited through a 1525 Denial of Service attack. 1526 1527 Thanks to Joonas Kuorilehto and Riku Hietam��ki (Codenomicon) for 1528 discovering and researching this issue. 1529 (CVE-2014-5139) 1530 [Steve Henson] 1531 1532 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 1533 X509_name_oneline, X509_name_print_ex et al. to leak some information 1534 from the stack. Applications may be affected if they echo pretty printing 1535 output to the attacker. 1536 1537 Thanks to Ivan Fratric (Google) for discovering this issue. 1538 (CVE-2014-3508) 1539 [Emilia K��sper, and Steve Henson] 1540 1541 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 1542 for corner cases. (Certain input points at infinity could lead to 1543 bogus results, with non-infinity inputs mapped to infinity too.) 1544 [Bodo Moeller] 1545 1546 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 1547 1548 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 1549 handshake can force the use of weak keying material in OpenSSL 1550 SSL/TLS clients and servers. 1551 1552 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 1553 researching this issue. (CVE-2014-0224) 1554 [KIKUCHI Masashi, Steve Henson] 1555 1556 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 1557 OpenSSL DTLS client the code can be made to recurse eventually crashing 1558 in a DoS attack. 1559 1560 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 1561 (CVE-2014-0221) 1562 [Imre Rad, Steve Henson] 1563 1564 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 1565 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 1566 client or server. This is potentially exploitable to run arbitrary 1567 code on a vulnerable client or server. 1568 1569 Thanks to J��ri Aedla for reporting this issue. (CVE-2014-0195) 1570 [J��ri Aedla, Steve Henson] 1571 1572 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 1573 are subject to a denial of service attack. 1574 1575 Thanks to Felix Gr��bert and Ivan Fratric at Google for discovering 1576 this issue. (CVE-2014-3470) 1577 [Felix Gr��bert, Ivan Fratric, Steve Henson] 1578 1579 *) Harmonize version and its documentation. -f flag is used to display 1580 compilation flags. 1581 [mancha <mancha1@zoho.com>] 1582 1583 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 1584 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 1585 [mancha <mancha1@zoho.com>] 1586 1587 *) Fix some double frees. These are not thought to be exploitable. 1588 [mancha <mancha1@zoho.com>] 1589 1590 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 1591 1592 *) A missing bounds check in the handling of the TLS heartbeat extension 1593 can be used to reveal up to 64k of memory to a connected client or 1594 server. 1595 1596 Thanks for Neel Mehta of Google Security for discovering this bug and to 1597 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 1598 preparing the fix (CVE-2014-0160) 1599 [Adam Langley, Bodo Moeller] 1600 1601 *) Fix for the attack described in the paper "Recovering OpenSSL 1602 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 1603 by Yuval Yarom and Naomi Benger. Details can be obtained from: 1604 http://eprint.iacr.org/2014/140 1605 1606 Thanks to Yuval Yarom and Naomi Benger for discovering this 1607 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 1608 [Yuval Yarom and Naomi Benger] 1609 1610 *) TLS pad extension: draft-agl-tls-padding-03 1611 1612 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 1613 TLS client Hello record length value would otherwise be > 255 and 1614 less that 512 pad with a dummy extension containing zeroes so it 1615 is at least 512 bytes long. 1616 1617 [Adam Langley, Steve Henson] 1618 1619 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 1620 1621 *) Fix for TLS record tampering bug. A carefully crafted invalid 1622 handshake could crash OpenSSL with a NULL pointer exception. 1623 Thanks to Anton Johansson for reporting this issues. 1624 (CVE-2013-4353) 1625 1626 *) Keep original DTLS digest and encryption contexts in retransmission 1627 structures so we can use the previous session parameters if they need 1628 to be resent. (CVE-2013-6450) 1629 [Steve Henson] 1630 1631 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 1632 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 1633 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 1634 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 1635 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 1636 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 1637 [Rob Stradling, Adam Langley] 1638 1639 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 1640 1641 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 1642 supporting platforms or when small records were transferred. 1643 [Andy Polyakov, Steve Henson] 1644 1645 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 1646 1647 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1648 1649 This addresses the flaw in CBC record processing discovered by 1650 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1651 at: http://www.isg.rhul.ac.uk/tls/ 1652 1653 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1654 Security Group at Royal Holloway, University of London 1655 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1656 Emilia K��sper for the initial patch. 1657 (CVE-2013-0169) 1658 [Emilia K��sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1659 1660 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 1661 ciphersuites which can be exploited in a denial of service attack. 1662 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 1663 and detecting this bug and to Wolfgang Ettlinger 1664 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 1665 (CVE-2012-2686) 1666 [Adam Langley] 1667 1668 *) Return an error when checking OCSP signatures when key is NULL. 1669 This fixes a DoS attack. (CVE-2013-0166) 1670 [Steve Henson] 1671 1672 *) Make openssl verify return errors. 1673 [Chris Palmer <palmer@google.com> and Ben Laurie] 1674 1675 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1676 the right response is stapled. Also change SSL_get_certificate() 1677 so it returns the certificate actually sent. 1678 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1679 [Rob Stradling <rob.stradling@comodo.com>] 1680 1681 *) Fix possible deadlock when decoding public keys. 1682 [Steve Henson] 1683 1684 *) Don't use TLS 1.0 record version number in initial client hello 1685 if renegotiating. 1686 [Steve Henson] 1687 1688 Changes between 1.0.1b and 1.0.1c [10 May 2012] 1689 1690 *) Sanity check record length before skipping explicit IV in TLS 1691 1.2, 1.1 and DTLS to fix DoS attack. 1692 1693 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1694 fuzzing as a service testing platform. 1695 (CVE-2012-2333) 1696 [Steve Henson] 1697 1698 *) Initialise tkeylen properly when encrypting CMS messages. 1699 Thanks to Solar Designer of Openwall for reporting this issue. 1700 [Steve Henson] 1701 1702 *) In FIPS mode don't try to use composite ciphers as they are not 1703 approved. 1704 [Steve Henson] 1705 1706 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 1707 1708 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 1709 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 1710 mean any application compiled against OpenSSL 1.0.0 headers setting 1711 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 1712 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 1713 0x10000000L Any application which was previously compiled against 1714 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 1715 will need to be recompiled as a result. Letting be results in 1716 inability to disable specifically TLS 1.1 and in client context, 1717 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 1718 [Steve Henson] 1719 1720 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 1721 disable just protocol X, but all protocols above X *if* there are 1722 protocols *below* X still enabled. In more practical terms it means 1723 that if application wants to disable TLS1.0 in favor of TLS1.1 and 1724 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 1725 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 1726 client side. 1727 [Andy Polyakov] 1728 1729 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 1730 1731 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1732 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1733 in CRYPTO_realloc_clean. 1734 1735 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1736 issue and to Adam Langley <agl@chromium.org> for fixing it. 1737 (CVE-2012-2110) 1738 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1739 1740 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 1741 [Adam Langley] 1742 1743 *) Workarounds for some broken servers that "hang" if a client hello 1744 record length exceeds 255 bytes. 1745 1746 1. Do not use record version number > TLS 1.0 in initial client 1747 hello: some (but not all) hanging servers will now work. 1748 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 1749 the number of ciphers sent in the client hello. This should be 1750 set to an even number, such as 50, for example by passing: 1751 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 1752 Most broken servers should now work. 1753 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 1754 TLS 1.2 client support entirely. 1755 [Steve Henson] 1756 1757 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 1758 [Andy Polyakov] 1759 1760 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 1761 1762 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 1763 STRING form instead of a DigestInfo. 1764 [Steve Henson] 1765 1766 *) The format used for MDC2 RSA signatures is inconsistent between EVP 1767 and the RSA_sign/RSA_verify functions. This was made more apparent when 1768 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 1769 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 1770 the correct format in RSA_verify so both forms transparently work. 1771 [Steve Henson] 1772 1773 *) Some servers which support TLS 1.0 can choke if we initially indicate 1774 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 1775 encrypted premaster secret. As a workaround use the maximum pemitted 1776 client version in client hello, this should keep such servers happy 1777 and still work with previous versions of OpenSSL. 1778 [Steve Henson] 1779 1780 *) Add support for TLS/DTLS heartbeats. 1781 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1782 1783 *) Add support for SCTP. 1784 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1785 1786 *) Improved PRNG seeding for VOS. 1787 [Paul Green <Paul.Green@stratus.com>] 1788 1789 *) Extensive assembler packs updates, most notably: 1790 1791 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 1792 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 1793 - x86_64: bit-sliced AES implementation; 1794 - ARM: NEON support, contemporary platforms optimizations; 1795 - s390x: z196 support; 1796 - *: GHASH and GF(2^m) multiplication implementations; 1797 1798 [Andy Polyakov] 1799 1800 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 1801 (removal of unnecessary code) 1802 [Peter Sylvester <peter.sylvester@edelweb.fr>] 1803 1804 *) Add TLS key material exporter from RFC 5705. 1805 [Eric Rescorla] 1806 1807 *) Add DTLS-SRTP negotiation from RFC 5764. 1808 [Eric Rescorla] 1809 1810 *) Add Next Protocol Negotiation, 1811 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 1812 disabled with a no-npn flag to config or Configure. Code donated 1813 by Google. 1814 [Adam Langley <agl@google.com> and Ben Laurie] 1815 1816 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 1817 NIST-P256, NIST-P521, with constant-time single point multiplication on 1818 typical inputs. Compiler support for the nonstandard type __uint128_t is 1819 required to use this (present in gcc 4.4 and later, for 64-bit builds). 1820 Code made available under Apache License version 2.0. 1821 1822 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 1823 line to include this in your build of OpenSSL, and run "make depend" (or 1824 "make update"). This enables the following EC_METHODs: 1825 1826 EC_GFp_nistp224_method() 1827 EC_GFp_nistp256_method() 1828 EC_GFp_nistp521_method() 1829 1830 EC_GROUP_new_by_curve_name() will automatically use these (while 1831 EC_GROUP_new_curve_GFp() currently prefers the more flexible 1832 implementations). 1833 [Emilia K��sper, Adam Langley, Bodo Moeller (Google)] 1834 1835 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 1836 all platforms. Move ssize_t definition from e_os.h to the public 1837 header file e_os2.h as it now appears in public header file cms.h 1838 [Steve Henson] 1839 1840 *) New -sigopt option to the ca, req and x509 utilities. Additional 1841 signature parameters can be passed using this option and in 1842 particular PSS. 1843 [Steve Henson] 1844 1845 *) Add RSA PSS signing function. This will generate and set the 1846 appropriate AlgorithmIdentifiers for PSS based on those in the 1847 corresponding EVP_MD_CTX structure. No application support yet. 1848 [Steve Henson] 1849 1850 *) Support for companion algorithm specific ASN1 signing routines. 1851 New function ASN1_item_sign_ctx() signs a pre-initialised 1852 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 1853 the appropriate parameters. 1854 [Steve Henson] 1855 1856 *) Add new algorithm specific ASN1 verification initialisation function 1857 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 1858 handling will be the same no matter what EVP_PKEY_METHOD is used. 1859 Add a PSS handler to support verification of PSS signatures: checked 1860 against a number of sample certificates. 1861 [Steve Henson] 1862 1863 *) Add signature printing for PSS. Add PSS OIDs. 1864 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 1865 1866 *) Add algorithm specific signature printing. An individual ASN1 method 1867 can now print out signatures instead of the standard hex dump. 1868 1869 More complex signatures (e.g. PSS) can print out more meaningful 1870 information. Include DSA version that prints out the signature 1871 parameters r, s. 1872 [Steve Henson] 1873 1874 *) Password based recipient info support for CMS library: implementing 1875 RFC3211. 1876 [Steve Henson] 1877 1878 *) Split password based encryption into PBES2 and PBKDF2 functions. This 1879 neatly separates the code into cipher and PBE sections and is required 1880 for some algorithms that split PBES2 into separate pieces (such as 1881 password based CMS). 1882 [Steve Henson] 1883 1884 *) Session-handling fixes: 1885 - Fix handling of connections that are resuming with a session ID, 1886 but also support Session Tickets. 1887 - Fix a bug that suppressed issuing of a new ticket if the client 1888 presented a ticket with an expired session. 1889 - Try to set the ticket lifetime hint to something reasonable. 1890 - Make tickets shorter by excluding irrelevant information. 1891 - On the client side, don't ignore renewed tickets. 1892 [Adam Langley, Bodo Moeller (Google)] 1893 1894 *) Fix PSK session representation. 1895 [Bodo Moeller] 1896 1897 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 1898 1899 This work was sponsored by Intel. 1900 [Andy Polyakov] 1901 1902 *) Add GCM support to TLS library. Some custom code is needed to split 1903 the IV between the fixed (from PRF) and explicit (from TLS record) 1904 portions. This adds all GCM ciphersuites supported by RFC5288 and 1905 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 1906 add a special AESGCM string for GCM only. 1907 [Steve Henson] 1908 1909 *) Expand range of ctrls for AES GCM. Permit setting invocation 1910 field on decrypt and retrieval of invocation field only on encrypt. 1911 [Steve Henson] 1912 1913 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 1914 As required by RFC5289 these ciphersuites cannot be used if for 1915 versions of TLS earlier than 1.2. 1916 [Steve Henson] 1917 1918 *) For FIPS capable OpenSSL interpret a NULL default public key method 1919 as unset and return the appopriate default but do *not* set the default. 1920 This means we can return the appopriate method in applications that 1921 swicth between FIPS and non-FIPS modes. 1922 [Steve Henson] 1923 1924 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 1925 ENGINE is used then we cannot handle that in the FIPS module so we 1926 keep original code iff non-FIPS operations are allowed. 1927 [Steve Henson] 1928 1929 *) Add -attime option to openssl utilities. 1930 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 1931 1932 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 1933 [Steve Henson] 1934 1935 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 1936 FIPS EC methods unconditionally for now. 1937 [Steve Henson] 1938 1939 *) New build option no-ec2m to disable characteristic 2 code. 1940 [Steve Henson] 1941 1942 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 1943 all cases can be covered as some introduce binary incompatibilities. 1944 [Steve Henson] 1945 1946 *) Redirect RSA operations to FIPS module including keygen, 1947 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 1948 [Steve Henson] 1949 1950 *) Add similar low level API blocking to ciphers. 1951 [Steve Henson] 1952 1953 *) Low level digest APIs are not approved in FIPS mode: any attempt 1954 to use these will cause a fatal error. Applications that *really* want 1955 to use them can use the private_* version instead. 1956 [Steve Henson] 1957 1958 *) Redirect cipher operations to FIPS module for FIPS builds. 1959 [Steve Henson] 1960 1961 *) Redirect digest operations to FIPS module for FIPS builds. 1962 [Steve Henson] 1963 1964 *) Update build system to add "fips" flag which will link in fipscanister.o 1965 for static and shared library builds embedding a signature if needed. 1966 [Steve Henson] 1967 1968 *) Output TLS supported curves in preference order instead of numerical 1969 order. This is currently hardcoded for the highest order curves first. 1970 This should be configurable so applications can judge speed vs strength. 1971 [Steve Henson] 1972 1973 *) Add TLS v1.2 server support for client authentication. 1974 [Steve Henson] 1975 1976 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 1977 and enable MD5. 1978 [Steve Henson] 1979 1980 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 1981 FIPS modules versions. 1982 [Steve Henson] 1983 1984 *) Add TLS v1.2 client side support for client authentication. Keep cache 1985 of handshake records longer as we don't know the hash algorithm to use 1986 until after the certificate request message is received. 1987 [Steve Henson] 1988 1989 *) Initial TLS v1.2 client support. Add a default signature algorithms 1990 extension including all the algorithms we support. Parse new signature 1991 format in client key exchange. Relax some ECC signing restrictions for 1992 TLS v1.2 as indicated in RFC5246. 1993 [Steve Henson] 1994 1995 *) Add server support for TLS v1.2 signature algorithms extension. Switch 1996 to new signature format when needed using client digest preference. 1997 All server ciphersuites should now work correctly in TLS v1.2. No client 1998 support yet and no support for client certificates. 1999 [Steve Henson] 2000 2001 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 2002 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 2003 ciphersuites. At present only RSA key exchange ciphersuites work with 2004 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 2005 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 2006 and version checking. 2007 [Steve Henson] 2008 2009 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 2010 with this defined it will not be affected by any changes to ssl internal 2011 structures. Add several utility functions to allow openssl application 2012 to work with OPENSSL_NO_SSL_INTERN defined. 2013 [Steve Henson] 2014 2015 *) Add SRP support. 2016 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 2017 2018 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 2019 [Steve Henson] 2020 2021 *) Permit abbreviated handshakes when renegotiating using the function 2022 SSL_renegotiate_abbreviated(). 2023 [Robin Seggelmann <seggelmann@fh-muenster.de>] 2024 2025 *) Add call to ENGINE_register_all_complete() to 2026 ENGINE_load_builtin_engines(), so some implementations get used 2027 automatically instead of needing explicit application support. 2028 [Steve Henson] 2029 2030 *) Add support for TLS key exporter as described in RFC5705. 2031 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 2032 2033 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 2034 a few changes are required: 2035 2036 Add SSL_OP_NO_TLSv1_1 flag. 2037 Add TLSv1_1 methods. 2038 Update version checking logic to handle version 1.1. 2039 Add explicit IV handling (ported from DTLS code). 2040 Add command line options to s_client/s_server. 2041 [Steve Henson] 2042 2043 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 2044 2045 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 2046 in CMS and PKCS7 code. When RSA decryption fails use a random key for 2047 content decryption and always return the same error. Note: this attack 2048 needs on average 2^20 messages so it only affects automated senders. The 2049 old behaviour can be reenabled in the CMS code by setting the 2050 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 2051 an MMA defence is not necessary. 2052 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 2053 this issue. (CVE-2012-0884) 2054 [Steve Henson] 2055 2056 *) Fix CVE-2011-4619: make sure we really are receiving a 2057 client hello before rejecting multiple SGC restarts. Thanks to 2058 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 2059 [Steve Henson] 2060 2061 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 2062 2063 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 2064 Thanks to Antonio Martin, Enterprise Secure Access Research and 2065 Development, Cisco Systems, Inc. for discovering this bug and 2066 preparing a fix. (CVE-2012-0050) 2067 [Antonio Martin] 2068 2069 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 2070 2071 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 2072 of the Vaudenay padding oracle attack on CBC mode encryption 2073 which enables an efficient plaintext recovery attack against 2074 the OpenSSL implementation of DTLS. Their attack exploits timing 2075 differences arising during decryption processing. A research 2076 paper describing this attack can be found at: 2077 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 2078 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 2079 Security Group at Royal Holloway, University of London 2080 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 2081 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 2082 for preparing the fix. (CVE-2011-4108) 2083 [Robin Seggelmann, Michael Tuexen] 2084 2085 *) Clear bytes used for block padding of SSL 3.0 records. 2086 (CVE-2011-4576) 2087 [Adam Langley (Google)] 2088 2089 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 2090 Kadianakis <desnacked@gmail.com> for discovering this issue and 2091 Adam Langley for preparing the fix. (CVE-2011-4619) 2092 [Adam Langley (Google)] 2093 2094 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 2095 [Andrey Kulikov <amdeich@gmail.com>] 2096 2097 *) Prevent malformed RFC3779 data triggering an assertion failure. 2098 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 2099 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 2100 [Rob Austein <sra@hactrn.net>] 2101 2102 *) Improved PRNG seeding for VOS. 2103 [Paul Green <Paul.Green@stratus.com>] 2104 2105 *) Fix ssl_ciph.c set-up race. 2106 [Adam Langley (Google)] 2107 2108 *) Fix spurious failures in ecdsatest.c. 2109 [Emilia K��sper (Google)] 2110 2111 *) Fix the BIO_f_buffer() implementation (which was mixing different 2112 interpretations of the '..._len' fields). 2113 [Adam Langley (Google)] 2114 2115 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 2116 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 2117 threads won't reuse the same blinding coefficients. 2118 2119 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 2120 lock to call BN_BLINDING_invert_ex, and avoids one use of 2121 BN_BLINDING_update for each BN_BLINDING structure (previously, 2122 the last update always remained unused). 2123 [Emilia K��sper (Google)] 2124 2125 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 2126 [Bob Buckholz (Google)] 2127 2128 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 2129 2130 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 2131 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 2132 [Kaspar Brand <ossl@velox.ch>] 2133 2134 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 2135 for multi-threaded use of ECDH. (CVE-2011-3210) 2136 [Adam Langley (Google)] 2137 2138 *) Fix x509_name_ex_d2i memory leak on bad inputs. 2139 [Bodo Moeller] 2140 2141 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 2142 signature public key algorithm by using OID xref utilities instead. 2143 Before this you could only use some ECC ciphersuites with SHA1 only. 2144 [Steve Henson] 2145 2146 *) Add protection against ECDSA timing attacks as mentioned in the paper 2147 by Billy Bob Brumley and Nicola Tuveri, see: 2148 2149 http://eprint.iacr.org/2011/232.pdf 2150 2151 [Billy Bob Brumley and Nicola Tuveri] 2152 2153 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 2154 2155 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 2156 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 2157 2158 *) Fix bug in string printing code: if *any* escaping is enabled we must 2159 escape the escape character (backslash) or the resulting string is 2160 ambiguous. 2161 [Steve Henson] 2162 2163 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 2164 2165 *) Disable code workaround for ancient and obsolete Netscape browsers 2166 and servers: an attacker can use it in a ciphersuite downgrade attack. 2167 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 2168 [Steve Henson] 2169 2170 *) Fixed J-PAKE implementation error, originally discovered by 2171 Sebastien Martini, further info and confirmation from Stefan 2172 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 2173 [Ben Laurie] 2174 2175 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 2176 2177 *) Fix extension code to avoid race conditions which can result in a buffer 2178 overrun vulnerability: resumed sessions must not be modified as they can 2179 be shared by multiple threads. CVE-2010-3864 2180 [Steve Henson] 2181 2182 *) Fix WIN32 build system to correctly link an ENGINE directory into 2183 a DLL. 2184 [Steve Henson] 2185 2186 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 2187 2188 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 2189 (CVE-2010-1633) 2190 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 2191 2192 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 2193 2194 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 2195 context. The operation can be customised via the ctrl mechanism in 2196 case ENGINEs want to include additional functionality. 2197 [Steve Henson] 2198 2199 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 2200 [Steve Henson] 2201 2202 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 2203 output hashes compatible with older versions of OpenSSL. 2204 [Willy Weisz <weisz@vcpc.univie.ac.at>] 2205 2206 *) Fix compression algorithm handling: if resuming a session use the 2207 compression algorithm of the resumed session instead of determining 2208 it from client hello again. Don't allow server to change algorithm. 2209 [Steve Henson] 2210 2211 *) Add load_crls() function to apps tidying load_certs() too. Add option 2212 to verify utility to allow additional CRLs to be included. 2213 [Steve Henson] 2214 2215 *) Update OCSP request code to permit adding custom headers to the request: 2216 some responders need this. 2217 [Steve Henson] 2218 2219 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 2220 correctly. 2221 [Julia Lawall <julia@diku.dk>] 2222 2223 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 2224 needlessly dereferenced structures, used obsolete functions and 2225 didn't handle all updated verify codes correctly. 2226 [Steve Henson] 2227 2228 *) Disable MD2 in the default configuration. 2229 [Steve Henson] 2230 2231 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 2232 indicate the initial BIO being pushed or popped. This makes it possible 2233 to determine whether the BIO is the one explicitly called or as a result 2234 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 2235 it handles reference counts correctly and doesn't zero out the I/O bio 2236 when it is not being explicitly popped. WARNING: applications which 2237 included workarounds for the old buggy behaviour will need to be modified 2238 or they could free up already freed BIOs. 2239 [Steve Henson] 2240 2241 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 2242 renaming to all platforms (within the 0.9.8 branch, this was 2243 done conditionally on Netware platforms to avoid a name clash). 2244 [Guenter <lists@gknw.net>] 2245 2246 *) Add ECDHE and PSK support to DTLS. 2247 [Michael Tuexen <tuexen@fh-muenster.de>] 2248 2249 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 2250 be used on C++. 2251 [Steve Henson] 2252 2253 *) Add "missing" function EVP_MD_flags() (without this the only way to 2254 retrieve a digest flags is by accessing the structure directly. Update 2255 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 2256 or cipher is registered as in the "from" argument. Print out all 2257 registered digests in the dgst usage message instead of manually 2258 attempting to work them out. 2259 [Steve Henson] 2260 2261 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 2262 this allows the use of compression and extensions. Change default cipher 2263 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 2264 by default unless an application cipher string requests it. 2265 [Steve Henson] 2266 2267 *) Alter match criteria in PKCS12_parse(). It used to try to use local 2268 key ids to find matching certificates and keys but some PKCS#12 files 2269 don't follow the (somewhat unwritten) rules and this strategy fails. 2270 Now just gather all certificates together and the first private key 2271 then look for the first certificate that matches the key. 2272 [Steve Henson] 2273 2274 *) Support use of registered digest and cipher names for dgst and cipher 2275 commands instead of having to add each one as a special case. So now 2276 you can do: 2277 2278 openssl sha256 foo 2279 2280 as well as: 2281 2282 openssl dgst -sha256 foo 2283 2284 and this works for ENGINE based algorithms too. 2285 2286 [Steve Henson] 2287 2288 *) Update Gost ENGINE to support parameter files. 2289 [Victor B. Wagner <vitus@cryptocom.ru>] 2290 2291 *) Support GeneralizedTime in ca utility. 2292 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 2293 2294 *) Enhance the hash format used for certificate directory links. The new 2295 form uses the canonical encoding (meaning equivalent names will work 2296 even if they aren't identical) and uses SHA1 instead of MD5. This form 2297 is incompatible with the older format and as a result c_rehash should 2298 be used to rebuild symbolic links. 2299 [Steve Henson] 2300 2301 *) Make PKCS#8 the default write format for private keys, replacing the 2302 traditional format. This form is standardised, more secure and doesn't 2303 include an implicit MD5 dependency. 2304 [Steve Henson] 2305 2306 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 2307 committed to OpenSSL should pass this lot as a minimum. 2308 [Steve Henson] 2309 2310 *) Add session ticket override functionality for use by EAP-FAST. 2311 [Jouni Malinen <j@w1.fi>] 2312 2313 *) Modify HMAC functions to return a value. Since these can be implemented 2314 in an ENGINE errors can occur. 2315 [Steve Henson] 2316 2317 *) Type-checked OBJ_bsearch_ex. 2318 [Ben Laurie] 2319 2320 *) Type-checked OBJ_bsearch. Also some constification necessitated 2321 by type-checking. Still to come: TXT_DB, bsearch(?), 2322 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 2323 CONF_VALUE. 2324 [Ben Laurie] 2325 2326 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 2327 seconds to a tm structure directly, instead of going through OS 2328 specific date routines. This avoids any issues with OS routines such 2329 as the year 2038 bug. New *_adj() functions for ASN1 time structures 2330 and X509_time_adj_ex() to cover the extended range. The existing 2331 X509_time_adj() is still usable and will no longer have any date issues. 2332 [Steve Henson] 2333 2334 *) Delta CRL support. New use deltas option which will attempt to locate 2335 and search any appropriate delta CRLs available. 2336 2337 This work was sponsored by Google. 2338 [Steve Henson] 2339 2340 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 2341 code and add additional score elements. Validate alternate CRL paths 2342 as part of the CRL checking and indicate a new error "CRL path validation 2343 error" in this case. Applications wanting additional details can use 2344 the verify callback and check the new "parent" field. If this is not 2345 NULL CRL path validation is taking place. Existing applications wont 2346 see this because it requires extended CRL support which is off by 2347 default. 2348 2349 This work was sponsored by Google. 2350 [Steve Henson] 2351 2352 *) Support for freshest CRL extension. 2353 2354 This work was sponsored by Google. 2355 [Steve Henson] 2356 2357 *) Initial indirect CRL support. Currently only supported in the CRLs 2358 passed directly and not via lookup. Process certificate issuer 2359 CRL entry extension and lookup CRL entries by bother issuer name 2360 and serial number. Check and process CRL issuer entry in IDP extension. 2361 2362 This work was sponsored by Google. 2363 [Steve Henson] 2364 2365 *) Add support for distinct certificate and CRL paths. The CRL issuer 2366 certificate is validated separately in this case. Only enabled if 2367 an extended CRL support flag is set: this flag will enable additional 2368 CRL functionality in future. 2369 2370 This work was sponsored by Google. 2371 [Steve Henson] 2372 2373 *) Add support for policy mappings extension. 2374 2375 This work was sponsored by Google. 2376 [Steve Henson] 2377 2378 *) Fixes to pathlength constraint, self issued certificate handling, 2379 policy processing to align with RFC3280 and PKITS tests. 2380 2381 This work was sponsored by Google. 2382 [Steve Henson] 2383 2384 *) Support for name constraints certificate extension. DN, email, DNS 2385 and URI types are currently supported. 2386 2387 This work was sponsored by Google. 2388 [Steve Henson] 2389 2390 *) To cater for systems that provide a pointer-based thread ID rather 2391 than numeric, deprecate the current numeric thread ID mechanism and 2392 replace it with a structure and associated callback type. This 2393 mechanism allows a numeric "hash" to be extracted from a thread ID in 2394 either case, and on platforms where pointers are larger than 'long', 2395 mixing is done to help ensure the numeric 'hash' is usable even if it 2396 can't be guaranteed unique. The default mechanism is to use "&errno" 2397 as a pointer-based thread ID to distinguish between threads. 2398 2399 Applications that want to provide their own thread IDs should now use 2400 CRYPTO_THREADID_set_callback() to register a callback that will call 2401 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 2402 2403 Note that ERR_remove_state() is now deprecated, because it is tied 2404 to the assumption that thread IDs are numeric. ERR_remove_state(0) 2405 to free the current thread's error state should be replaced by 2406 ERR_remove_thread_state(NULL). 2407 2408 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 2409 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 2410 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 2411 application was previously providing a numeric thread callback that 2412 was inappropriate for distinguishing threads, then uniqueness might 2413 have been obtained with &errno that happened immediately in the 2414 intermediate development versions of OpenSSL; this is no longer the 2415 case, the numeric thread callback will now override the automatic use 2416 of &errno.) 2417 [Geoff Thorpe, with help from Bodo Moeller] 2418 2419 *) Initial support for different CRL issuing certificates. This covers a 2420 simple case where the self issued certificates in the chain exist and 2421 the real CRL issuer is higher in the existing chain. 2422 2423 This work was sponsored by Google. 2424 [Steve Henson] 2425 2426 *) Removed effectively defunct crypto/store from the build. 2427 [Ben Laurie] 2428 2429 *) Revamp of STACK to provide stronger type-checking. Still to come: 2430 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 2431 ASN1_STRING, CONF_VALUE. 2432 [Ben Laurie] 2433 2434 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 2435 RAM on SSL connections. This option can save about 34k per idle SSL. 2436 [Nick Mathewson] 2437 2438 *) Revamp of LHASH to provide stronger type-checking. Still to come: 2439 STACK, TXT_DB, bsearch, qsort. 2440 [Ben Laurie] 2441 2442 *) Initial support for Cryptographic Message Syntax (aka CMS) based 2443 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 2444 support for data, signedData, compressedData, digestedData and 2445 encryptedData, envelopedData types included. Scripts to check against 2446 RFC4134 examples draft and interop and consistency checks of many 2447 content types and variants. 2448 [Steve Henson] 2449 2450 *) Add options to enc utility to support use of zlib compression BIO. 2451 [Steve Henson] 2452 2453 *) Extend mk1mf to support importing of options and assembly language 2454 files from Configure script, currently only included in VC-WIN32. 2455 The assembly language rules can now optionally generate the source 2456 files from the associated perl scripts. 2457 [Steve Henson] 2458 2459 *) Implement remaining functionality needed to support GOST ciphersuites. 2460 Interop testing has been performed using CryptoPro implementations. 2461 [Victor B. Wagner <vitus@cryptocom.ru>] 2462 2463 *) s390x assembler pack. 2464 [Andy Polyakov] 2465 2466 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 2467 "family." 2468 [Andy Polyakov] 2469 2470 *) Implement Opaque PRF Input TLS extension as specified in 2471 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 2472 official specification yet and no extension type assignment by 2473 IANA exists, this extension (for now) will have to be explicitly 2474 enabled when building OpenSSL by providing the extension number 2475 to use. For example, specify an option 2476 2477 -DTLSEXT_TYPE_opaque_prf_input=0x9527 2478 2479 to the "config" or "Configure" script to enable the extension, 2480 assuming extension number 0x9527 (which is a completely arbitrary 2481 and unofficial assignment based on the MD5 hash of the Internet 2482 Draft). Note that by doing so, you potentially lose 2483 interoperability with other TLS implementations since these might 2484 be using the same extension number for other purposes. 2485 2486 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 2487 opaque PRF input value to use in the handshake. This will create 2488 an interal copy of the length-'len' string at 'src', and will 2489 return non-zero for success. 2490 2491 To get more control and flexibility, provide a callback function 2492 by using 2493 2494 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 2495 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 2496 2497 where 2498 2499 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 2500 void *arg; 2501 2502 Callback function 'cb' will be called in handshakes, and is 2503 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 2504 Argument 'arg' is for application purposes (the value as given to 2505 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 2506 be provided to the callback function). The callback function 2507 has to return non-zero to report success: usually 1 to use opaque 2508 PRF input just if possible, or 2 to enforce use of the opaque PRF 2509 input. In the latter case, the library will abort the handshake 2510 if opaque PRF input is not successfully negotiated. 2511 2512 Arguments 'peerinput' and 'len' given to the callback function 2513 will always be NULL and 0 in the case of a client. A server will 2514 see the client's opaque PRF input through these variables if 2515 available (NULL and 0 otherwise). Note that if the server 2516 provides an opaque PRF input, the length must be the same as the 2517 length of the client's opaque PRF input. 2518 2519 Note that the callback function will only be called when creating 2520 a new session (session resumption can resume whatever was 2521 previously negotiated), and will not be called in SSL 2.0 2522 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 2523 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 2524 for applications that need to enforce opaque PRF input. 2525 2526 [Bodo Moeller] 2527 2528 *) Update ssl code to support digests other than SHA1+MD5 for handshake 2529 MAC. 2530 2531 [Victor B. Wagner <vitus@cryptocom.ru>] 2532 2533 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2534 RFC4507bis. The encrypted ticket format is an encrypted encoded 2535 SSL_SESSION structure, that way new session features are automatically 2536 supported. 2537 2538 If a client application caches session in an SSL_SESSION structure 2539 support is transparent because tickets are now stored in the encoded 2540 SSL_SESSION. 2541 2542 The SSL_CTX structure automatically generates keys for ticket 2543 protection in servers so again support should be possible 2544 with no application modification. 2545 2546 If a client or server wishes to disable RFC4507 support then the option 2547 SSL_OP_NO_TICKET can be set. 2548 2549 Add a TLS extension debugging callback to allow the contents of any client 2550 or server extensions to be examined. 2551 2552 This work was sponsored by Google. 2553 [Steve Henson] 2554 2555 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 2556 OpenSSL should now compile cleanly on gcc 4.2 2557 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 2558 2559 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 2560 support including streaming MAC support: this is required for GOST 2561 ciphersuite support. 2562 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 2563 2564 *) Add option -stream to use PKCS#7 streaming in smime utility. New 2565 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 2566 to output in BER and PEM format. 2567 [Steve Henson] 2568 2569 *) Experimental support for use of HMAC via EVP_PKEY interface. This 2570 allows HMAC to be handled via the EVP_DigestSign*() interface. The 2571 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 2572 ENGINE support for HMAC keys which are unextractable. New -mac and 2573 -macopt options to dgst utility. 2574 [Steve Henson] 2575 2576 *) New option -sigopt to dgst utility. Update dgst to use 2577 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 2578 alternative signing paramaters such as X9.31 or PSS in the dgst 2579 utility. 2580 [Steve Henson] 2581 2582 *) Change ssl_cipher_apply_rule(), the internal function that does 2583 the work each time a ciphersuite string requests enabling 2584 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 2585 removing ("!foo+bar") a class of ciphersuites: Now it maintains 2586 the order of disabled ciphersuites such that those ciphersuites 2587 that most recently went from enabled to disabled not only stay 2588 in order with respect to each other, but also have higher priority 2589 than other disabled ciphersuites the next time ciphersuites are 2590 enabled again. 2591 2592 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 2593 the same ciphersuites as with "HIGH" alone, but in a specific 2594 order where the PSK ciphersuites come first (since they are the 2595 most recently disabled ciphersuites when "HIGH" is parsed). 2596 2597 Also, change ssl_create_cipher_list() (using this new 2598 funcionality) such that between otherwise identical 2599 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 2600 the default order. 2601 [Bodo Moeller] 2602 2603 *) Change ssl_create_cipher_list() so that it automatically 2604 arranges the ciphersuites in reasonable order before starting 2605 to process the rule string. Thus, the definition for "DEFAULT" 2606 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 2607 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 2608 This makes it much easier to arrive at a reasonable default order 2609 in applications for which anonymous ciphers are OK (meaning 2610 that you can't actually use DEFAULT). 2611 [Bodo Moeller; suggested by Victor Duchovni] 2612 2613 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 2614 processing) into multiple integers instead of setting 2615 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 2616 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 2617 (These masks as well as the individual bit definitions are hidden 2618 away into the non-exported interface ssl/ssl_locl.h, so this 2619 change to the definition of the SSL_CIPHER structure shouldn't 2620 affect applications.) This give us more bits for each of these 2621 categories, so there is no longer a need to coagulate AES128 and 2622 AES256 into a single algorithm bit, and to coagulate Camellia128 2623 and Camellia256 into a single algorithm bit, which has led to all 2624 kinds of kludges. 2625 2626 Thus, among other things, the kludge introduced in 0.9.7m and 2627 0.9.8e for masking out AES256 independently of AES128 or masking 2628 out Camellia256 independently of AES256 is not needed here in 0.9.9. 2629 2630 With the change, we also introduce new ciphersuite aliases that 2631 so far were missing: "AES128", "AES256", "CAMELLIA128", and 2632 "CAMELLIA256". 2633 [Bodo Moeller] 2634 2635 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 2636 Use the leftmost N bytes of the signature input if the input is 2637 larger than the prime q (with N being the size in bytes of q). 2638 [Nils Larsch] 2639 2640 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 2641 it yet and it is largely untested. 2642 [Steve Henson] 2643 2644 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 2645 [Nils Larsch] 2646 2647 *) Initial incomplete changes to avoid need for function casts in OpenSSL 2648 some compilers (gcc 4.2 and later) reject their use. Safestack is 2649 reimplemented. Update ASN1 to avoid use of legacy functions. 2650 [Steve Henson] 2651 2652 *) Win32/64 targets are linked with Winsock2. 2653 [Andy Polyakov] 2654 2655 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 2656 to external functions. This can be used to increase CRL handling 2657 efficiency especially when CRLs are very large by (for example) storing 2658 the CRL revoked certificates in a database. 2659 [Steve Henson] 2660 2661 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 2662 new CRLs added to a directory can be used. New command line option 2663 -verify_return_error to s_client and s_server. This causes real errors 2664 to be returned by the verify callback instead of carrying on no matter 2665 what. This reflects the way a "real world" verify callback would behave. 2666 [Steve Henson] 2667 2668 *) GOST engine, supporting several GOST algorithms and public key formats. 2669 Kindly donated by Cryptocom. 2670 [Cryptocom] 2671 2672 *) Partial support for Issuing Distribution Point CRL extension. CRLs 2673 partitioned by DP are handled but no indirect CRL or reason partitioning 2674 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 2675 selected via a scoring technique which handles IDP and AKID in CRLs. 2676 [Steve Henson] 2677 2678 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 2679 will ultimately be used for all verify operations: this will remove the 2680 X509_STORE dependency on certificate verification and allow alternative 2681 lookup methods. X509_STORE based implementations of these two callbacks. 2682 [Steve Henson] 2683 2684 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 2685 Modify get_crl() to find a valid (unexpired) CRL if possible. 2686 [Steve Henson] 2687 2688 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 2689 this would be called X509_CRL_cmp() but that name is already used by 2690 a function that just compares CRL issuer names. Cache several CRL 2691 extensions in X509_CRL structure and cache CRLDP in X509. 2692 [Steve Henson] 2693 2694 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 2695 this maps equivalent X509_NAME structures into a consistent structure. 2696 Name comparison can then be performed rapidly using memcmp(). 2697 [Steve Henson] 2698 2699 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 2700 utility. 2701 [Steve Henson] 2702 2703 *) Allow digests to supply their own micalg string for S/MIME type using 2704 the ctrl EVP_MD_CTRL_MICALG. 2705 [Steve Henson] 2706 2707 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 2708 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 2709 ctrl. It can then customise the structure before and/or after signing 2710 if necessary. 2711 [Steve Henson] 2712 2713 *) New function OBJ_add_sigid() to allow application defined signature OIDs 2714 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 2715 to free up any added signature OIDs. 2716 [Steve Henson] 2717 2718 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 2719 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 2720 digest and cipher tables. New options added to openssl utility: 2721 list-message-digest-algorithms and list-cipher-algorithms. 2722 [Steve Henson] 2723 2724 *) Change the array representation of binary polynomials: the list 2725 of degrees of non-zero coefficients is now terminated with -1. 2726 Previously it was terminated with 0, which was also part of the 2727 value; thus, the array representation was not applicable to 2728 polynomials where t^0 has coefficient zero. This change makes 2729 the array representation useful in a more general context. 2730 [Douglas Stebila] 2731 2732 *) Various modifications and fixes to SSL/TLS cipher string 2733 handling. For ECC, the code now distinguishes between fixed ECDH 2734 with RSA certificates on the one hand and with ECDSA certificates 2735 on the other hand, since these are separate ciphersuites. The 2736 unused code for Fortezza ciphersuites has been removed. 2737 2738 For consistency with EDH, ephemeral ECDH is now called "EECDH" 2739 (not "ECDHE"). For consistency with the code for DH 2740 certificates, use of ECDH certificates is now considered ECDH 2741 authentication, not RSA or ECDSA authentication (the latter is 2742 merely the CA's signing algorithm and not actively used in the 2743 protocol). 2744 2745 The temporary ciphersuite alias "ECCdraft" is no longer 2746 available, and ECC ciphersuites are no longer excluded from "ALL" 2747 and "DEFAULT". The following aliases now exist for RFC 4492 2748 ciphersuites, most of these by analogy with the DH case: 2749 2750 kECDHr - ECDH cert, signed with RSA 2751 kECDHe - ECDH cert, signed with ECDSA 2752 kECDH - ECDH cert (signed with either RSA or ECDSA) 2753 kEECDH - ephemeral ECDH 2754 ECDH - ECDH cert or ephemeral ECDH 2755 2756 aECDH - ECDH cert 2757 aECDSA - ECDSA cert 2758 ECDSA - ECDSA cert 2759 2760 AECDH - anonymous ECDH 2761 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 2762 2763 [Bodo Moeller] 2764 2765 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 2766 Use correct micalg parameters depending on digest(s) in signed message. 2767 [Steve Henson] 2768 2769 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 2770 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 2771 [Steve Henson] 2772 2773 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 2774 an engine to register a method. Add ENGINE lookups for methods and 2775 functional reference processing. 2776 [Steve Henson] 2777 2778 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 2779 EVP_{Sign,Verify}* which allow an application to customise the signature 2780 process. 2781 [Steve Henson] 2782 2783 *) New -resign option to smime utility. This adds one or more signers 2784 to an existing PKCS#7 signedData structure. Also -md option to use an 2785 alternative message digest algorithm for signing. 2786 [Steve Henson] 2787 2788 *) Tidy up PKCS#7 routines and add new functions to make it easier to 2789 create PKCS7 structures containing multiple signers. Update smime 2790 application to support multiple signers. 2791 [Steve Henson] 2792 2793 *) New -macalg option to pkcs12 utility to allow setting of an alternative 2794 digest MAC. 2795 [Steve Henson] 2796 2797 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 2798 Reorganize PBE internals to lookup from a static table using NIDs, 2799 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 2800 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 2801 PRF which will be automatically used with PBES2. 2802 [Steve Henson] 2803 2804 *) Replace the algorithm specific calls to generate keys in "req" with the 2805 new API. 2806 [Steve Henson] 2807 2808 *) Update PKCS#7 enveloped data routines to use new API. This is now 2809 supported by any public key method supporting the encrypt operation. A 2810 ctrl is added to allow the public key algorithm to examine or modify 2811 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 2812 a no op. 2813 [Steve Henson] 2814 2815 *) Add a ctrl to asn1 method to allow a public key algorithm to express 2816 a default digest type to use. In most cases this will be SHA1 but some 2817 algorithms (such as GOST) need to specify an alternative digest. The 2818 return value indicates how strong the prefernce is 1 means optional and 2819 2 is mandatory (that is it is the only supported type). Modify 2820 ASN1_item_sign() to accept a NULL digest argument to indicate it should 2821 use the default md. Update openssl utilities to use the default digest 2822 type for signing if it is not explicitly indicated. 2823 [Steve Henson] 2824 2825 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 2826 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 2827 signing method from the key type. This effectively removes the link 2828 between digests and public key types. 2829 [Steve Henson] 2830 2831 *) Add an OID cross reference table and utility functions. Its purpose is to 2832 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 2833 rsaEncryption. This will allow some of the algorithm specific hackery 2834 needed to use the correct OID to be removed. 2835 [Steve Henson] 2836 2837 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 2838 structures for PKCS7_sign(). They are now set up by the relevant public 2839 key ASN1 method. 2840 [Steve Henson] 2841 2842 *) Add provisional EC pkey method with support for ECDSA and ECDH. 2843 [Steve Henson] 2844 2845 *) Add support for key derivation (agreement) in the API, DH method and 2846 pkeyutl. 2847 [Steve Henson] 2848 2849 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 2850 public and private key formats. As a side effect these add additional 2851 command line functionality not previously available: DSA signatures can be 2852 generated and verified using pkeyutl and DH key support and generation in 2853 pkey, genpkey. 2854 [Steve Henson] 2855 2856 *) BeOS support. 2857 [Oliver Tappe <zooey@hirschkaefer.de>] 2858 2859 *) New make target "install_html_docs" installs HTML renditions of the 2860 manual pages. 2861 [Oliver Tappe <zooey@hirschkaefer.de>] 2862 2863 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 2864 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 2865 support key and parameter generation and add initial key generation 2866 functionality for RSA. 2867 [Steve Henson] 2868 2869 *) Add functions for main EVP_PKEY_method operations. The undocumented 2870 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 2871 EVP_PKEY_{encrypt,decrypt}_old. 2872 [Steve Henson] 2873 2874 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 2875 key API, doesn't do much yet. 2876 [Steve Henson] 2877 2878 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 2879 public key algorithms. New option to openssl utility: 2880 "list-public-key-algorithms" to print out info. 2881 [Steve Henson] 2882 2883 *) Implement the Supported Elliptic Curves Extension for 2884 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2885 [Douglas Stebila] 2886 2887 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 2888 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 2889 [Steve Henson] 2890 2891 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 2892 utilities such as rsa, dsa, dsaparam etc except they process any key 2893 type. 2894 [Steve Henson] 2895 2896 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 2897 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 2898 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 2899 structure. 2900 [Steve Henson] 2901 2902 *) Initial support for pluggable public key ASN1. 2903 De-spaghettify the public key ASN1 handling. Move public and private 2904 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 2905 algorithm specific handling to a single module within the relevant 2906 algorithm directory. Add functions to allow (near) opaque processing 2907 of public and private key structures. 2908 [Steve Henson] 2909 2910 *) Implement the Supported Point Formats Extension for 2911 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2912 [Douglas Stebila] 2913 2914 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 2915 for the psk identity [hint] and the psk callback functions to the 2916 SSL_SESSION, SSL and SSL_CTX structure. 2917 2918 New ciphersuites: 2919 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 2920 PSK-AES256-CBC-SHA 2921 2922 New functions: 2923 SSL_CTX_use_psk_identity_hint 2924 SSL_get_psk_identity_hint 2925 SSL_get_psk_identity 2926 SSL_use_psk_identity_hint 2927 2928 [Mika Kousa and Pasi Eronen of Nokia Corporation] 2929 2930 *) Add RFC 3161 compliant time stamp request creation, response generation 2931 and response verification functionality. 2932 [Zolt��n Gl��zik <zglozik@opentsa.org>, The OpenTSA Project] 2933 2934 *) Add initial support for TLS extensions, specifically for the server_name 2935 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2936 have new members for a host name. The SSL data structure has an 2937 additional member SSL_CTX *initial_ctx so that new sessions can be 2938 stored in that context to allow for session resumption, even after the 2939 SSL has been switched to a new SSL_CTX in reaction to a client's 2940 server_name extension. 2941 2942 New functions (subject to change): 2943 2944 SSL_get_servername() 2945 SSL_get_servername_type() 2946 SSL_set_SSL_CTX() 2947 2948 New CTRL codes and macros (subject to change): 2949 2950 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2951 - SSL_CTX_set_tlsext_servername_callback() 2952 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2953 - SSL_CTX_set_tlsext_servername_arg() 2954 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2955 2956 openssl s_client has a new '-servername ...' option. 2957 2958 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2959 '-key2 ...', '-servername_fatal' (subject to change). This allows 2960 testing the HostName extension for a specific single host name ('-cert' 2961 and '-key' remain fallbacks for handshakes without HostName 2962 negotiation). If the unrecogninzed_name alert has to be sent, this by 2963 default is a warning; it becomes fatal with the '-servername_fatal' 2964 option. 2965 2966 [Peter Sylvester, Remy Allais, Christophe Renou] 2967 2968 *) Whirlpool hash implementation is added. 2969 [Andy Polyakov] 2970 2971 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 2972 bn(64,32). Because of instruction set limitations it doesn't have 2973 any negative impact on performance. This was done mostly in order 2974 to make it possible to share assembler modules, such as bn_mul_mont 2975 implementations, between 32- and 64-bit builds without hassle. 2976 [Andy Polyakov] 2977 2978 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 2979 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 2980 macro. 2981 [Bodo Moeller] 2982 2983 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 2984 dedicated Montgomery multiplication procedure, is introduced. 2985 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 2986 "64-bit" performance on certain 32-bit targets. 2987 [Andy Polyakov] 2988 2989 *) New option SSL_OP_NO_COMP to disable use of compression selectively 2990 in SSL structures. New SSL ctrl to set maximum send fragment size. 2991 Save memory by seeting the I/O buffer sizes dynamically instead of 2992 using the maximum available value. 2993 [Steve Henson] 2994 2995 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 2996 in addition to the text details. 2997 [Bodo Moeller] 2998 2999 *) Very, very preliminary EXPERIMENTAL support for printing of general 3000 ASN1 structures. This currently produces rather ugly output and doesn't 3001 handle several customised structures at all. 3002 [Steve Henson] 3003 3004 *) Integrated support for PVK file format and some related formats such 3005 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 3006 these in the 'rsa' and 'dsa' utilities. 3007 [Steve Henson] 3008 3009 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 3010 [Steve Henson] 3011 3012 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 3013 place for the (very old) "NETSCAPE" format certificates which are now 3014 handled using new ASN1 code equivalents. 3015 [Steve Henson] 3016 3017 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 3018 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 3019 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 3020 [Nils Larsch] 3021 3022 *) Modify CRL distribution points extension code to print out previously 3023 unsupported fields. Enhance extension setting code to allow setting of 3024 all fields. 3025 [Steve Henson] 3026 3027 *) Add print and set support for Issuing Distribution Point CRL extension. 3028 [Steve Henson] 3029 3030 *) Change 'Configure' script to enable Camellia by default. 3031 [NTT] 3032 3033 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 3034 3035 *) When rejecting SSL/TLS records due to an incorrect version number, never 3036 update s->server with a new major version number. As of 3037 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 3038 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 3039 the previous behavior could result in a read attempt at NULL when 3040 receiving specific incorrect SSL/TLS records once record payload 3041 protection is active. (CVE-2010-0740) 3042 [Bodo Moeller, Adam Langley <agl@chromium.org>] 3043 3044 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 3045 could be crashed if the relevant tables were not present (e.g. chrooted). 3046 [Tomas Hoger <thoger@redhat.com>] 3047 3048 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 3049 3050 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 3051 [Martin Olsson, Neel Mehta] 3052 3053 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 3054 accommodate for stack sorting, always a write lock!). 3055 [Bodo Moeller] 3056 3057 *) On some versions of WIN32 Heap32Next is very slow. This can cause 3058 excessive delays in the RAND_poll(): over a minute. As a workaround 3059 include a time check in the inner Heap32Next loop too. 3060 [Steve Henson] 3061 3062 *) The code that handled flushing of data in SSL/TLS originally used the 3063 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 3064 the problem outlined in PR#1949. The fix suggested there however can 3065 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 3066 of Apache). So instead simplify the code to flush unconditionally. 3067 This should be fine since flushing with no data to flush is a no op. 3068 [Steve Henson] 3069 3070 *) Handle TLS versions 2.0 and later properly and correctly use the 3071 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 3072 off ancient servers have a habit of sticking around for a while... 3073 [Steve Henson] 3074 3075 *) Modify compression code so it frees up structures without using the 3076 ex_data callbacks. This works around a problem where some applications 3077 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 3078 restarting) then use compression (e.g. SSL with compression) later. 3079 This results in significant per-connection memory leaks and 3080 has caused some security issues including CVE-2008-1678 and 3081 CVE-2009-4355. 3082 [Steve Henson] 3083 3084 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 3085 change when encrypting or decrypting. 3086 [Bodo Moeller] 3087 3088 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 3089 connect and renegotiate with servers which do not support RI. 3090 Until RI is more widely deployed this option is enabled by default. 3091 [Steve Henson] 3092 3093 *) Add "missing" ssl ctrls to clear options and mode. 3094 [Steve Henson] 3095 3096 *) If client attempts to renegotiate and doesn't support RI respond with 3097 a no_renegotiation alert as required by RFC5746. Some renegotiating 3098 TLS clients will continue a connection gracefully when they receive 3099 the alert. Unfortunately OpenSSL mishandled this alert and would hang 3100 waiting for a server hello which it will never receive. Now we treat a 3101 received no_renegotiation alert as a fatal error. This is because 3102 applications requesting a renegotiation might well expect it to succeed 3103 and would have no code in place to handle the server denying it so the 3104 only safe thing to do is to terminate the connection. 3105 [Steve Henson] 3106 3107 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 3108 peer supports secure renegotiation and 0 otherwise. Print out peer 3109 renegotiation support in s_client/s_server. 3110 [Steve Henson] 3111 3112 *) Replace the highly broken and deprecated SPKAC certification method with 3113 the updated NID creation version. This should correctly handle UTF8. 3114 [Steve Henson] 3115 3116 *) Implement RFC5746. Re-enable renegotiation but require the extension 3117 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 3118 turns out to be a bad idea. It has been replaced by 3119 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 3120 SSL_CTX_set_options(). This is really not recommended unless you 3121 know what you are doing. 3122 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 3123 3124 *) Fixes to stateless session resumption handling. Use initial_ctx when 3125 issuing and attempting to decrypt tickets in case it has changed during 3126 servername handling. Use a non-zero length session ID when attempting 3127 stateless session resumption: this makes it possible to determine if 3128 a resumption has occurred immediately after receiving server hello 3129 (several places in OpenSSL subtly assume this) instead of later in 3130 the handshake. 3131 [Steve Henson] 3132 3133 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 3134 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 3135 fixes for a few places where the return code is not checked 3136 correctly. 3137 [Julia Lawall <julia@diku.dk>] 3138 3139 *) Add --strict-warnings option to Configure script to include devteam 3140 warnings in other configurations. 3141 [Steve Henson] 3142 3143 *) Add support for --libdir option and LIBDIR variable in makefiles. This 3144 makes it possible to install openssl libraries in locations which 3145 have names other than "lib", for example "/usr/lib64" which some 3146 systems need. 3147 [Steve Henson, based on patch from Jeremy Utley] 3148 3149 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 3150 X690 8.9.12 and can produce some misleading textual output of OIDs. 3151 [Steve Henson, reported by Dan Kaminsky] 3152 3153 *) Delete MD2 from algorithm tables. This follows the recommendation in 3154 several standards that it is not used in new applications due to 3155 several cryptographic weaknesses. For binary compatibility reasons 3156 the MD2 API is still compiled in by default. 3157 [Steve Henson] 3158 3159 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 3160 and restored. 3161 [Steve Henson] 3162 3163 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 3164 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 3165 clash. 3166 [Guenter <lists@gknw.net>] 3167 3168 *) Fix the server certificate chain building code to use X509_verify_cert(), 3169 it used to have an ad-hoc builder which was unable to cope with anything 3170 other than a simple chain. 3171 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 3172 3173 *) Don't check self signed certificate signatures in X509_verify_cert() 3174 by default (a flag can override this): it just wastes time without 3175 adding any security. As a useful side effect self signed root CAs 3176 with non-FIPS digests are now usable in FIPS mode. 3177 [Steve Henson] 3178 3179 *) In dtls1_process_out_of_seq_message() the check if the current message 3180 is already buffered was missing. For every new message was memory 3181 allocated, allowing an attacker to perform an denial of service attack 3182 with sending out of seq handshake messages until there is no memory 3183 left. Additionally every future messege was buffered, even if the 3184 sequence number made no sense and would be part of another handshake. 3185 So only messages with sequence numbers less than 10 in advance will be 3186 buffered. (CVE-2009-1378) 3187 [Robin Seggelmann, discovered by Daniel Mentz] 3188 3189 *) Records are buffered if they arrive with a future epoch to be 3190 processed after finishing the corresponding handshake. There is 3191 currently no limitation to this buffer allowing an attacker to perform 3192 a DOS attack with sending records with future epochs until there is no 3193 memory left. This patch adds the pqueue_size() function to detemine 3194 the size of a buffer and limits the record buffer to 100 entries. 3195 (CVE-2009-1377) 3196 [Robin Seggelmann, discovered by Daniel Mentz] 3197 3198 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 3199 parent structure is freed. (CVE-2009-1379) 3200 [Daniel Mentz] 3201 3202 *) Handle non-blocking I/O properly in SSL_shutdown() call. 3203 [Darryl Miles <darryl-mailinglists@netbauds.net>] 3204 3205 *) Add 2.5.4.* OIDs 3206 [Ilya O. <vrghost@gmail.com>] 3207 3208 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 3209 3210 *) Disable renegotiation completely - this fixes a severe security 3211 problem (CVE-2009-3555) at the cost of breaking all 3212 renegotiation. Renegotiation can be re-enabled by setting 3213 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 3214 run-time. This is really not recommended unless you know what 3215 you're doing. 3216 [Ben Laurie] 3217 3218 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 3219 3220 *) Don't set val to NULL when freeing up structures, it is freed up by 3221 underlying code. If sizeof(void *) > sizeof(long) this can result in 3222 zeroing past the valid field. (CVE-2009-0789) 3223 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 3224 3225 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 3226 checked correctly. This would allow some invalid signed attributes to 3227 appear to verify correctly. (CVE-2009-0591) 3228 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3229 3230 *) Reject UniversalString and BMPString types with invalid lengths. This 3231 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 3232 a legal length. (CVE-2009-0590) 3233 [Steve Henson] 3234 3235 *) Set S/MIME signing as the default purpose rather than setting it 3236 unconditionally. This allows applications to override it at the store 3237 level. 3238 [Steve Henson] 3239 3240 *) Permit restricted recursion of ASN1 strings. This is needed in practice 3241 to handle some structures. 3242 [Steve Henson] 3243 3244 *) Improve efficiency of mem_gets: don't search whole buffer each time 3245 for a '\n' 3246 [Jeremy Shapiro <jnshapir@us.ibm.com>] 3247 3248 *) New -hex option for openssl rand. 3249 [Matthieu Herrb] 3250 3251 *) Print out UTF8String and NumericString when parsing ASN1. 3252 [Steve Henson] 3253 3254 *) Support NumericString type for name components. 3255 [Steve Henson] 3256 3257 *) Allow CC in the environment to override the automatically chosen 3258 compiler. Note that nothing is done to ensure flags work with the 3259 chosen compiler. 3260 [Ben Laurie] 3261 3262 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 3263 3264 *) Properly check EVP_VerifyFinal() and similar return values 3265 (CVE-2008-5077). 3266 [Ben Laurie, Bodo Moeller, Google Security Team] 3267 3268 *) Enable TLS extensions by default. 3269 [Ben Laurie] 3270 3271 *) Allow the CHIL engine to be loaded, whether the application is 3272 multithreaded or not. (This does not release the developer from the 3273 obligation to set up the dynamic locking callbacks.) 3274 [Sander Temme <sander@temme.net>] 3275 3276 *) Use correct exit code if there is an error in dgst command. 3277 [Steve Henson; problem pointed out by Roland Dirlewanger] 3278 3279 *) Tweak Configure so that you need to say "experimental-jpake" to enable 3280 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 3281 [Bodo Moeller] 3282 3283 *) Add experimental JPAKE support, including demo authentication in 3284 s_client and s_server. 3285 [Ben Laurie] 3286 3287 *) Set the comparison function in v3_addr_canonize(). 3288 [Rob Austein <sra@hactrn.net>] 3289 3290 *) Add support for XMPP STARTTLS in s_client. 3291 [Philip Paeps <philip@freebsd.org>] 3292 3293 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 3294 to ensure that even with this option, only ciphersuites in the 3295 server's preference list will be accepted. (Note that the option 3296 applies only when resuming a session, so the earlier behavior was 3297 just about the algorithm choice for symmetric cryptography.) 3298 [Bodo Moeller] 3299 3300 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 3301 3302 *) Fix NULL pointer dereference if a DTLS server received 3303 ChangeCipherSpec as first record (CVE-2009-1386). 3304 [PR #1679] 3305 3306 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 3307 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 3308 [Nagendra Modadugu] 3309 3310 *) The fix in 0.9.8c that supposedly got rid of unsafe 3311 double-checked locking was incomplete for RSA blinding, 3312 addressing just one layer of what turns out to have been 3313 doubly unsafe triple-checked locking. 3314 3315 So now fix this for real by retiring the MONT_HELPER macro 3316 in crypto/rsa/rsa_eay.c. 3317 3318 [Bodo Moeller; problem pointed out by Marius Schilder] 3319 3320 *) Various precautionary measures: 3321 3322 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 3323 3324 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 3325 (NB: This would require knowledge of the secret session ticket key 3326 to exploit, in which case you'd be SOL either way.) 3327 3328 - Change bn_nist.c so that it will properly handle input BIGNUMs 3329 outside the expected range. 3330 3331 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 3332 builds. 3333 3334 [Neel Mehta, Bodo Moeller] 3335 3336 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 3337 the load fails. Useful for distros. 3338 [Ben Laurie and the FreeBSD team] 3339 3340 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 3341 [Steve Henson] 3342 3343 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 3344 [Huang Ying] 3345 3346 *) Expand ENGINE to support engine supplied SSL client certificate functions. 3347 3348 This work was sponsored by Logica. 3349 [Steve Henson] 3350 3351 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 3352 keystores. Support for SSL/TLS client authentication too. 3353 Not compiled unless enable-capieng specified to Configure. 3354 3355 This work was sponsored by Logica. 3356 [Steve Henson] 3357 3358 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 3359 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 3360 attribute creation routines such as certifcate requests and PKCS#12 3361 files. 3362 [Steve Henson] 3363 3364 Changes between 0.9.8g and 0.9.8h [28 May 2008] 3365 3366 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 3367 handshake which could lead to a cilent crash as found using the 3368 Codenomicon TLS test suite (CVE-2008-1672) 3369 [Steve Henson, Mark Cox] 3370 3371 *) Fix double free in TLS server name extensions which could lead to 3372 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 3373 [Joe Orton] 3374 3375 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 3376 3377 Clear the error queue to ensure that error entries left from 3378 older function calls do not interfere with the correct operation. 3379 [Lutz Jaenicke, Erik de Castro Lopo] 3380 3381 *) Remove root CA certificates of commercial CAs: 3382 3383 The OpenSSL project does not recommend any specific CA and does not 3384 have any policy with respect to including or excluding any CA. 3385 Therefore it does not make any sense to ship an arbitrary selection 3386 of root CA certificates with the OpenSSL software. 3387 [Lutz Jaenicke] 3388 3389 *) RSA OAEP patches to fix two separate invalid memory reads. 3390 The first one involves inputs when 'lzero' is greater than 3391 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 3392 before the beginning of from). The second one involves inputs where 3393 the 'db' section contains nothing but zeroes (there is a one-byte 3394 invalid read after the end of 'db'). 3395 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3396 3397 *) Partial backport from 0.9.9-dev: 3398 3399 Introduce bn_mul_mont (dedicated Montgomery multiplication 3400 procedure) as a candidate for BIGNUM assembler implementation. 3401 While 0.9.9-dev uses assembler for various architectures, only 3402 x86_64 is available by default here in the 0.9.8 branch, and 3403 32-bit x86 is available through a compile-time setting. 3404 3405 To try the 32-bit x86 assembler implementation, use Configure 3406 option "enable-montasm" (which exists only for this backport). 3407 3408 As "enable-montasm" for 32-bit x86 disclaims code stability 3409 anyway, in this constellation we activate additional code 3410 backported from 0.9.9-dev for further performance improvements, 3411 namely BN_from_montgomery_word. (To enable this otherwise, 3412 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 3413 3414 [Andy Polyakov (backport partially by Bodo Moeller)] 3415 3416 *) Add TLS session ticket callback. This allows an application to set 3417 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 3418 values. This is useful for key rollover for example where several key 3419 sets may exist with different names. 3420 [Steve Henson] 3421 3422 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 3423 This was broken until now in 0.9.8 releases, such that the only way 3424 a registered ENGINE could be used (assuming it initialises 3425 successfully on the host) was to explicitly set it as the default 3426 for the relevant algorithms. This is in contradiction with 0.9.7 3427 behaviour and the documentation. With this fix, when an ENGINE is 3428 registered into a given algorithm's table of implementations, the 3429 'uptodate' flag is reset so that auto-discovery will be used next 3430 time a new context for that algorithm attempts to select an 3431 implementation. 3432 [Ian Lister (tweaked by Geoff Thorpe)] 3433 3434 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 3435 implemention in the following ways: 3436 3437 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 3438 hard coded. 3439 3440 Lack of BER streaming support means one pass streaming processing is 3441 only supported if data is detached: setting the streaming flag is 3442 ignored for embedded content. 3443 3444 CMS support is disabled by default and must be explicitly enabled 3445 with the enable-cms configuration option. 3446 [Steve Henson] 3447 3448 *) Update the GMP engine glue to do direct copies between BIGNUM and 3449 mpz_t when openssl and GMP use the same limb size. Otherwise the 3450 existing "conversion via a text string export" trick is still used. 3451 [Paul Sheer <paulsheer@gmail.com>] 3452 3453 *) Zlib compression BIO. This is a filter BIO which compressed and 3454 uncompresses any data passed through it. 3455 [Steve Henson] 3456 3457 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 3458 RFC3394 compatible AES key wrapping. 3459 [Steve Henson] 3460 3461 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 3462 sets string data without copying. X509_ALGOR_set0() and 3463 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 3464 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 3465 from an X509_ATTRIBUTE structure optionally checking it occurs only 3466 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 3467 data. 3468 [Steve Henson] 3469 3470 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 3471 to get the expected BN_FLG_CONSTTIME behavior. 3472 [Bodo Moeller (Google)] 3473 3474 *) Netware support: 3475 3476 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 3477 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 3478 - added some more tests to do_tests.pl 3479 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 3480 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 3481 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 3482 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 3483 - various changes to netware.pl to enable gcc-cross builds on Win32 3484 platform 3485 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 3486 - various changes to fix missing prototype warnings 3487 - fixed x86nasm.pl to create correct asm files for NASM COFF output 3488 - added AES, WHIRLPOOL and CPUID assembler code to build files 3489 - added missing AES assembler make rules to mk1mf.pl 3490 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 3491 [Guenter Knauf <eflash@gmx.net>] 3492 3493 *) Implement certificate status request TLS extension defined in RFC3546. 3494 A client can set the appropriate parameters and receive the encoded 3495 OCSP response via a callback. A server can query the supplied parameters 3496 and set the encoded OCSP response in the callback. Add simplified examples 3497 to s_client and s_server. 3498 [Steve Henson] 3499 3500 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 3501 3502 *) Fix various bugs: 3503 + Binary incompatibility of ssl_ctx_st structure 3504 + DTLS interoperation with non-compliant servers 3505 + Don't call get_session_cb() without proposed session 3506 + Fix ia64 assembler code 3507 [Andy Polyakov, Steve Henson] 3508 3509 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 3510 3511 *) DTLS Handshake overhaul. There were longstanding issues with 3512 OpenSSL DTLS implementation, which were making it impossible for 3513 RFC 4347 compliant client to communicate with OpenSSL server. 3514 Unfortunately just fixing these incompatibilities would "cut off" 3515 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 3516 server keeps tolerating non RFC compliant syntax. The opposite is 3517 not true, 0.9.8f client can not communicate with earlier server. 3518 This update even addresses CVE-2007-4995. 3519 [Andy Polyakov] 3520 3521 *) Changes to avoid need for function casts in OpenSSL: some compilers 3522 (gcc 4.2 and later) reject their use. 3523 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 3524 Steve Henson] 3525 3526 *) Add RFC4507 support to OpenSSL. This includes the corrections in 3527 RFC4507bis. The encrypted ticket format is an encrypted encoded 3528 SSL_SESSION structure, that way new session features are automatically 3529 supported. 3530 3531 If a client application caches session in an SSL_SESSION structure 3532 support is transparent because tickets are now stored in the encoded 3533 SSL_SESSION. 3534 3535 The SSL_CTX structure automatically generates keys for ticket 3536 protection in servers so again support should be possible 3537 with no application modification. 3538 3539 If a client or server wishes to disable RFC4507 support then the option 3540 SSL_OP_NO_TICKET can be set. 3541 3542 Add a TLS extension debugging callback to allow the contents of any client 3543 or server extensions to be examined. 3544 3545 This work was sponsored by Google. 3546 [Steve Henson] 3547 3548 *) Add initial support for TLS extensions, specifically for the server_name 3549 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 3550 have new members for a host name. The SSL data structure has an 3551 additional member SSL_CTX *initial_ctx so that new sessions can be 3552 stored in that context to allow for session resumption, even after the 3553 SSL has been switched to a new SSL_CTX in reaction to a client's 3554 server_name extension. 3555 3556 New functions (subject to change): 3557 3558 SSL_get_servername() 3559 SSL_get_servername_type() 3560 SSL_set_SSL_CTX() 3561 3562 New CTRL codes and macros (subject to change): 3563 3564 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 3565 - SSL_CTX_set_tlsext_servername_callback() 3566 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 3567 - SSL_CTX_set_tlsext_servername_arg() 3568 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 3569 3570 openssl s_client has a new '-servername ...' option. 3571 3572 openssl s_server has new options '-servername_host ...', '-cert2 ...', 3573 '-key2 ...', '-servername_fatal' (subject to change). This allows 3574 testing the HostName extension for a specific single host name ('-cert' 3575 and '-key' remain fallbacks for handshakes without HostName 3576 negotiation). If the unrecogninzed_name alert has to be sent, this by 3577 default is a warning; it becomes fatal with the '-servername_fatal' 3578 option. 3579 3580 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 3581 3582 *) Add AES and SSE2 assembly language support to VC++ build. 3583 [Steve Henson] 3584 3585 *) Mitigate attack on final subtraction in Montgomery reduction. 3586 [Andy Polyakov] 3587 3588 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 3589 (which previously caused an internal error). 3590 [Bodo Moeller] 3591 3592 *) Squeeze another 10% out of IGE mode when in != out. 3593 [Ben Laurie] 3594 3595 *) AES IGE mode speedup. 3596 [Dean Gaudet (Google)] 3597 3598 *) Add the Korean symmetric 128-bit cipher SEED (see 3599 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 3600 add SEED ciphersuites from RFC 4162: 3601 3602 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 3603 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 3604 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 3605 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 3606 3607 To minimize changes between patchlevels in the OpenSSL 0.9.8 3608 series, SEED remains excluded from compilation unless OpenSSL 3609 is configured with 'enable-seed'. 3610 [KISA, Bodo Moeller] 3611 3612 *) Mitigate branch prediction attacks, which can be practical if a 3613 single processor is shared, allowing a spy process to extract 3614 information. For detailed background information, see 3615 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 3616 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 3617 and Necessary Software Countermeasures"). The core of the change 3618 are new versions BN_div_no_branch() and 3619 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 3620 respectively, which are slower, but avoid the security-relevant 3621 conditional branches. These are automatically called by BN_div() 3622 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 3623 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 3624 remove a conditional branch. 3625 3626 BN_FLG_CONSTTIME is the new name for the previous 3627 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 3628 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 3629 in the exponent causes BN_mod_exp_mont() to use the alternative 3630 implementation in BN_mod_exp_mont_consttime().) The old name 3631 remains as a deprecated alias. 3632 3633 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 3634 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 3635 constant-time implementations for more than just exponentiation. 3636 Here too the old name is kept as a deprecated alias. 3637 3638 BN_BLINDING_new() will now use BN_dup() for the modulus so that 3639 the BN_BLINDING structure gets an independent copy of the 3640 modulus. This means that the previous "BIGNUM *m" argument to 3641 BN_BLINDING_new() and to BN_BLINDING_create_param() now 3642 essentially becomes "const BIGNUM *m", although we can't actually 3643 change this in the header file before 0.9.9. It allows 3644 RSA_setup_blinding() to use BN_with_flags() on the modulus to 3645 enable BN_FLG_CONSTTIME. 3646 3647 [Matthew D Wood (Intel Corp)] 3648 3649 *) In the SSL/TLS server implementation, be strict about session ID 3650 context matching (which matters if an application uses a single 3651 external cache for different purposes). Previously, 3652 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 3653 set. This did ensure strict client verification, but meant that, 3654 with applications using a single external cache for quite 3655 different requirements, clients could circumvent ciphersuite 3656 restrictions for a given session ID context by starting a session 3657 in a different context. 3658 [Bodo Moeller] 3659 3660 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3661 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3662 authentication-only ciphersuites. 3663 [Bodo Moeller] 3664 3665 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 3666 not complete and could lead to a possible single byte overflow 3667 (CVE-2007-5135) [Ben Laurie] 3668 3669 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 3670 3671 *) Since AES128 and AES256 (and similarly Camellia128 and 3672 Camellia256) share a single mask bit in the logic of 3673 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3674 kludge to work properly if AES128 is available and AES256 isn't 3675 (or if Camellia128 is available and Camellia256 isn't). 3676 [Victor Duchovni] 3677 3678 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 3679 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 3680 When a point or a seed is encoded in a BIT STRING, we need to 3681 prevent the removal of trailing zero bits to get the proper DER 3682 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 3683 of a NamedBitList, for which trailing 0 bits need to be removed.) 3684 [Bodo Moeller] 3685 3686 *) Have SSL/TLS server implementation tolerate "mismatched" record 3687 protocol version while receiving ClientHello even if the 3688 ClientHello is fragmented. (The server can't insist on the 3689 particular protocol version it has chosen before the ServerHello 3690 message has informed the client about his choice.) 3691 [Bodo Moeller] 3692 3693 *) Add RFC 3779 support. 3694 [Rob Austein for ARIN, Ben Laurie] 3695 3696 *) Load error codes if they are not already present instead of using a 3697 static variable. This allows them to be cleanly unloaded and reloaded. 3698 Improve header file function name parsing. 3699 [Steve Henson] 3700 3701 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 3702 or CAPABILITY handshake as required by RFCs. 3703 [Goetz Babin-Ebell] 3704 3705 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 3706 3707 *) Introduce limits to prevent malicious keys being able to 3708 cause a denial of service. (CVE-2006-2940) 3709 [Steve Henson, Bodo Moeller] 3710 3711 *) Fix ASN.1 parsing of certain invalid structures that can result 3712 in a denial of service. (CVE-2006-2937) [Steve Henson] 3713 3714 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3715 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3716 3717 *) Fix SSL client code which could crash if connecting to a 3718 malicious SSLv2 server. (CVE-2006-4343) 3719 [Tavis Ormandy and Will Drewry, Google Security Team] 3720 3721 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 3722 match only those. Before that, "AES256-SHA" would be interpreted 3723 as a pattern and match "AES128-SHA" too (since AES128-SHA got 3724 the same strength classification in 0.9.7h) as we currently only 3725 have a single AES bit in the ciphersuite description bitmap. 3726 That change, however, also applied to ciphersuite strings such as 3727 "RC4-MD5" that intentionally matched multiple ciphersuites -- 3728 namely, SSL 2.0 ciphersuites in addition to the more common ones 3729 from SSL 3.0/TLS 1.0. 3730 3731 So we change the selection algorithm again: Naming an explicit 3732 ciphersuite selects this one ciphersuite, and any other similar 3733 ciphersuite (same bitmap) from *other* protocol versions. 3734 Thus, "RC4-MD5" again will properly select both the SSL 2.0 3735 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 3736 3737 Since SSL 2.0 does not have any ciphersuites for which the 3738 128/256 bit distinction would be relevant, this works for now. 3739 The proper fix will be to use different bits for AES128 and 3740 AES256, which would have avoided the problems from the beginning; 3741 however, bits are scarce, so we can only do this in a new release 3742 (not just a patchlevel) when we can change the SSL_CIPHER 3743 definition to split the single 'unsigned long mask' bitmap into 3744 multiple values to extend the available space. 3745 3746 [Bodo Moeller] 3747 3748 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 3749 3750 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3751 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3752 3753 *) Add AES IGE and biIGE modes. 3754 [Ben Laurie] 3755 3756 *) Change the Unix randomness entropy gathering to use poll() when 3757 possible instead of select(), since the latter has some 3758 undesirable limitations. 3759 [Darryl Miles via Richard Levitte and Bodo Moeller] 3760 3761 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 3762 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 3763 cannot be implicitly activated as part of, e.g., the "AES" alias. 3764 However, please upgrade to OpenSSL 0.9.9[-dev] for 3765 non-experimental use of the ECC ciphersuites to get TLS extension 3766 support, which is required for curve and point format negotiation 3767 to avoid potential handshake problems. 3768 [Bodo Moeller] 3769 3770 *) Disable rogue ciphersuites: 3771 3772 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3773 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3774 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3775 3776 The latter two were purportedly from 3777 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3778 appear there. 3779 3780 Also deactivate the remaining ciphersuites from 3781 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3782 unofficial, and the ID has long expired. 3783 [Bodo Moeller] 3784 3785 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3786 dual-core machines) and other potential thread-safety issues. 3787 [Bodo Moeller] 3788 3789 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 3790 versions), which is now available for royalty-free use 3791 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 3792 Also, add Camellia TLS ciphersuites from RFC 4132. 3793 3794 To minimize changes between patchlevels in the OpenSSL 0.9.8 3795 series, Camellia remains excluded from compilation unless OpenSSL 3796 is configured with 'enable-camellia'. 3797 [NTT] 3798 3799 *) Disable the padding bug check when compression is in use. The padding 3800 bug check assumes the first packet is of even length, this is not 3801 necessarily true if compresssion is enabled and can result in false 3802 positives causing handshake failure. The actual bug test is ancient 3803 code so it is hoped that implementations will either have fixed it by 3804 now or any which still have the bug do not support compression. 3805 [Steve Henson] 3806 3807 Changes between 0.9.8a and 0.9.8b [04 May 2006] 3808 3809 *) When applying a cipher rule check to see if string match is an explicit 3810 cipher suite and only match that one cipher suite if it is. 3811 [Steve Henson] 3812 3813 *) Link in manifests for VC++ if needed. 3814 [Austin Ziegler <halostatue@gmail.com>] 3815 3816 *) Update support for ECC-based TLS ciphersuites according to 3817 draft-ietf-tls-ecc-12.txt with proposed changes (but without 3818 TLS extensions, which are supported starting with the 0.9.9 3819 branch, not in the OpenSSL 0.9.8 branch). 3820 [Douglas Stebila] 3821 3822 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 3823 opaque EVP_CIPHER_CTX handling. 3824 [Steve Henson] 3825 3826 *) Fixes and enhancements to zlib compression code. We now only use 3827 "zlib1.dll" and use the default __cdecl calling convention on Win32 3828 to conform with the standards mentioned here: 3829 http://www.zlib.net/DLL_FAQ.txt 3830 Static zlib linking now works on Windows and the new --with-zlib-include 3831 --with-zlib-lib options to Configure can be used to supply the location 3832 of the headers and library. Gracefully handle case where zlib library 3833 can't be loaded. 3834 [Steve Henson] 3835 3836 *) Several fixes and enhancements to the OID generation code. The old code 3837 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 3838 handle numbers larger than ULONG_MAX, truncated printing and had a 3839 non standard OBJ_obj2txt() behaviour. 3840 [Steve Henson] 3841 3842 *) Add support for building of engines under engine/ as shared libraries 3843 under VC++ build system. 3844 [Steve Henson] 3845 3846 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 3847 Hopefully, we will not see any false combination of paths any more. 3848 [Richard Levitte] 3849 3850 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 3851 3852 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3853 (part of SSL_OP_ALL). This option used to disable the 3854 countermeasure against man-in-the-middle protocol-version 3855 rollback in the SSL 2.0 server implementation, which is a bad 3856 idea. (CVE-2005-2969) 3857 3858 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3859 for Information Security, National Institute of Advanced Industrial 3860 Science and Technology [AIST], Japan)] 3861 3862 *) Add two function to clear and return the verify parameter flags. 3863 [Steve Henson] 3864 3865 *) Keep cipherlists sorted in the source instead of sorting them at 3866 runtime, thus removing the need for a lock. 3867 [Nils Larsch] 3868 3869 *) Avoid some small subgroup attacks in Diffie-Hellman. 3870 [Nick Mathewson and Ben Laurie] 3871 3872 *) Add functions for well-known primes. 3873 [Nick Mathewson] 3874 3875 *) Extended Windows CE support. 3876 [Satoshi Nakamura and Andy Polyakov] 3877 3878 *) Initialize SSL_METHOD structures at compile time instead of during 3879 runtime, thus removing the need for a lock. 3880 [Steve Henson] 3881 3882 *) Make PKCS7_decrypt() work even if no certificate is supplied by 3883 attempting to decrypt each encrypted key in turn. Add support to 3884 smime utility. 3885 [Steve Henson] 3886 3887 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 3888 3889 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 3890 OpenSSL 0.9.8.] 3891 3892 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 3893 [Richard Levitte] 3894 3895 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 3896 key into the same file any more. 3897 [Richard Levitte] 3898 3899 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 3900 [Andy Polyakov] 3901 3902 *) Add -utf8 command line and config file option to 'ca'. 3903 [Stefan <stf@udoma.org] 3904 3905 *) Removed the macro des_crypt(), as it seems to conflict with some 3906 libraries. Use DES_crypt(). 3907 [Richard Levitte] 3908 3909 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 3910 involves renaming the source and generated shared-libs for 3911 both. The engines will accept the corrected or legacy ids 3912 ('ncipher' and '4758_cca' respectively) when binding. NB, 3913 this only applies when building 'shared'. 3914 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 3915 3916 *) Add attribute functions to EVP_PKEY structure. Modify 3917 PKCS12_create() to recognize a CSP name attribute and 3918 use it. Make -CSP option work again in pkcs12 utility. 3919 [Steve Henson] 3920 3921 *) Add new functionality to the bn blinding code: 3922 - automatic re-creation of the BN_BLINDING parameters after 3923 a fixed number of uses (currently 32) 3924 - add new function for parameter creation 3925 - introduce flags to control the update behaviour of the 3926 BN_BLINDING parameters 3927 - hide BN_BLINDING structure 3928 Add a second BN_BLINDING slot to the RSA structure to improve 3929 performance when a single RSA object is shared among several 3930 threads. 3931 [Nils Larsch] 3932 3933 *) Add support for DTLS. 3934 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 3935 3936 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 3937 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 3938 [Walter Goulet] 3939 3940 *) Remove buggy and incompletet DH cert support from 3941 ssl/ssl_rsa.c and ssl/s3_both.c 3942 [Nils Larsch] 3943 3944 *) Use SHA-1 instead of MD5 as the default digest algorithm for 3945 the apps/openssl applications. 3946 [Nils Larsch] 3947 3948 *) Compile clean with "-Wall -Wmissing-prototypes 3949 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 3950 DEBUG_SAFESTACK must also be set. 3951 [Ben Laurie] 3952 3953 *) Change ./Configure so that certain algorithms can be disabled by default. 3954 The new counterpiece to "no-xxx" is "enable-xxx". 3955 3956 The patented RC5 and MDC2 algorithms will now be disabled unless 3957 "enable-rc5" and "enable-mdc2", respectively, are specified. 3958 3959 (IDEA remains enabled despite being patented. This is because IDEA 3960 is frequently required for interoperability, and there is no license 3961 fee for non-commercial use. As before, "no-idea" can be used to 3962 avoid this algorithm.) 3963 3964 [Bodo Moeller] 3965 3966 *) Add processing of proxy certificates (see RFC 3820). This work was 3967 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 3968 EGEE (Enabling Grids for E-science in Europe). 3969 [Richard Levitte] 3970 3971 *) RC4 performance overhaul on modern architectures/implementations, such 3972 as Intel P4, IA-64 and AMD64. 3973 [Andy Polyakov] 3974 3975 *) New utility extract-section.pl. This can be used specify an alternative 3976 section number in a pod file instead of having to treat each file as 3977 a separate case in Makefile. This can be done by adding two lines to the 3978 pod file: 3979 3980 =for comment openssl_section:XXX 3981 3982 The blank line is mandatory. 3983 3984 [Steve Henson] 3985 3986 *) New arguments -certform, -keyform and -pass for s_client and s_server 3987 to allow alternative format key and certificate files and passphrase 3988 sources. 3989 [Steve Henson] 3990 3991 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 3992 update associated structures and add various utility functions. 3993 3994 Add new policy related verify parameters, include policy checking in 3995 standard verify code. Enhance 'smime' application with extra parameters 3996 to support policy checking and print out. 3997 [Steve Henson] 3998 3999 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 4000 Nehemiah processors. These extensions support AES encryption in hardware 4001 as well as RNG (though RNG support is currently disabled). 4002 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 4003 4004 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 4005 [Geoff Thorpe] 4006 4007 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 4008 [Andy Polyakov and a number of other people] 4009 4010 *) Improved PowerPC platform support. Most notably BIGNUM assembler 4011 implementation contributed by IBM. 4012 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 4013 4014 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 4015 exponent rather than 'unsigned long'. There is a corresponding change to 4016 the new 'rsa_keygen' element of the RSA_METHOD structure. 4017 [Jelte Jansen, Geoff Thorpe] 4018 4019 *) Functionality for creating the initial serial number file is now 4020 moved from CA.pl to the 'ca' utility with a new option -create_serial. 4021 4022 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 4023 number file to 1, which is bound to cause problems. To avoid 4024 the problems while respecting compatibility between different 0.9.7 4025 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 4026 CA.pl for serial number initialization. With the new release 0.9.8, 4027 we can fix the problem directly in the 'ca' utility.) 4028 [Steve Henson] 4029 4030 *) Reduced header interdepencies by declaring more opaque objects in 4031 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 4032 give fewer recursive includes, which could break lazy source code - so 4033 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 4034 developers should define this symbol when building and using openssl to 4035 ensure they track the recommended behaviour, interfaces, [etc], but 4036 backwards-compatible behaviour prevails when this isn't defined. 4037 [Geoff Thorpe] 4038 4039 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 4040 [Steve Henson] 4041 4042 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 4043 This will generate a random key of the appropriate length based on the 4044 cipher context. The EVP_CIPHER can provide its own random key generation 4045 routine to support keys of a specific form. This is used in the des and 4046 3des routines to generate a key of the correct parity. Update S/MIME 4047 code to use new functions and hence generate correct parity DES keys. 4048 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 4049 valid (weak or incorrect parity). 4050 [Steve Henson] 4051 4052 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 4053 as looking them up. This is useful when the verified structure may contain 4054 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 4055 present unless the new PKCS7_NO_CRL flag is asserted. 4056 [Steve Henson] 4057 4058 *) Extend ASN1 oid configuration module. It now additionally accepts the 4059 syntax: 4060 4061 shortName = some long name, 1.2.3.4 4062 [Steve Henson] 4063 4064 *) Reimplemented the BN_CTX implementation. There is now no more static 4065 limitation on the number of variables it can handle nor the depth of the 4066 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 4067 information can now expand as required, and rather than having a single 4068 static array of bignums, BN_CTX now uses a linked-list of such arrays 4069 allowing it to expand on demand whilst maintaining the usefulness of 4070 BN_CTX's "bundling". 4071 [Geoff Thorpe] 4072 4073 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 4074 to allow all RSA operations to function using a single BN_CTX. 4075 [Geoff Thorpe] 4076 4077 *) Preliminary support for certificate policy evaluation and checking. This 4078 is initially intended to pass the tests outlined in "Conformance Testing 4079 of Relying Party Client Certificate Path Processing Logic" v1.07. 4080 [Steve Henson] 4081 4082 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 4083 remained unused and not that useful. A variety of other little bignum 4084 tweaks and fixes have also been made continuing on from the audit (see 4085 below). 4086 [Geoff Thorpe] 4087 4088 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 4089 associated ASN1, EVP and SSL functions and old ASN1 macros. 4090 [Richard Levitte] 4091 4092 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 4093 and this should never fail. So the return value from the use of 4094 BN_set_word() (which can fail due to needless expansion) is now deprecated; 4095 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 4096 [Geoff Thorpe] 4097 4098 *) BN_CTX_get() should return zero-valued bignums, providing the same 4099 initialised value as BN_new(). 4100 [Geoff Thorpe, suggested by Ulf M��ller] 4101 4102 *) Support for inhibitAnyPolicy certificate extension. 4103 [Steve Henson] 4104 4105 *) An audit of the BIGNUM code is underway, for which debugging code is 4106 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 4107 is considered valid when processing BIGNUMs, and causes execution to 4108 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 4109 further steps are taken to deliberately pollute unused data in BIGNUM 4110 structures to try and expose faulty code further on. For now, openssl will 4111 (in its default mode of operation) continue to tolerate the inconsistent 4112 forms that it has tolerated in the past, but authors and packagers should 4113 consider trying openssl and their own applications when compiled with 4114 these debugging symbols defined. It will help highlight potential bugs in 4115 their own code, and will improve the test coverage for OpenSSL itself. At 4116 some point, these tighter rules will become openssl's default to improve 4117 maintainability, though the assert()s and other overheads will remain only 4118 in debugging configurations. See bn.h for more details. 4119 [Geoff Thorpe, Nils Larsch, Ulf M��ller] 4120 4121 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 4122 that can only be obtained through BN_CTX_new() (which implicitly 4123 initialises it). The presence of this function only made it possible 4124 to overwrite an existing structure (and cause memory leaks). 4125 [Geoff Thorpe] 4126 4127 *) Because of the callback-based approach for implementing LHASH as a 4128 template type, lh_insert() adds opaque objects to hash-tables and 4129 lh_doall() or lh_doall_arg() are typically used with a destructor callback 4130 to clean up those corresponding objects before destroying the hash table 4131 (and losing the object pointers). So some over-zealous constifications in 4132 LHASH have been relaxed so that lh_insert() does not take (nor store) the 4133 objects as "const" and the lh_doall[_arg] callback wrappers are not 4134 prototyped to have "const" restrictions on the object pointers they are 4135 given (and so aren't required to cast them away any more). 4136 [Geoff Thorpe] 4137 4138 *) The tmdiff.h API was so ugly and minimal that our own timing utility 4139 (speed) prefers to use its own implementation. The two implementations 4140 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 4141 its object type properly exposed (MS_TM) instead of casting to/from "char 4142 *". This may still change yet if someone realises MS_TM and "ms_time_***" 4143 aren't necessarily the greatest nomenclatures - but this is what was used 4144 internally to the implementation so I've used that for now. 4145 [Geoff Thorpe] 4146 4147 *) Ensure that deprecated functions do not get compiled when 4148 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 4149 the self-tests were still using deprecated key-generation functions so 4150 these have been updated also. 4151 [Geoff Thorpe] 4152 4153 *) Reorganise PKCS#7 code to separate the digest location functionality 4154 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 4155 New function PKCS7_set_digest() to set the digest type for PKCS#7 4156 digestedData type. Add additional code to correctly generate the 4157 digestedData type and add support for this type in PKCS7 initialization 4158 functions. 4159 [Steve Henson] 4160 4161 *) New function PKCS7_set0_type_other() this initializes a PKCS7 4162 structure of type "other". 4163 [Steve Henson] 4164 4165 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 4166 sure the loop does correctly stop and breaking ("division by zero") 4167 modulus operations are not performed. The (pre-generated) prime 4168 table crypto/bn/bn_prime.h was already correct, but it could not be 4169 re-generated on some platforms because of the "division by zero" 4170 situation in the script. 4171 [Ralf S. Engelschall] 4172 4173 *) Update support for ECC-based TLS ciphersuites according to 4174 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 4175 SHA-1 now is only used for "small" curves (where the 4176 representation of a field element takes up to 24 bytes); for 4177 larger curves, the field element resulting from ECDH is directly 4178 used as premaster secret. 4179 [Douglas Stebila (Sun Microsystems Laboratories)] 4180 4181 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 4182 curve secp160r1 to the tests. 4183 [Douglas Stebila (Sun Microsystems Laboratories)] 4184 4185 *) Add the possibility to load symbols globally with DSO. 4186 [G��tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 4187 4188 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 4189 control of the error stack. 4190 [Richard Levitte] 4191 4192 *) Add support for STORE in ENGINE. 4193 [Richard Levitte] 4194 4195 *) Add the STORE type. The intention is to provide a common interface 4196 to certificate and key stores, be they simple file-based stores, or 4197 HSM-type store, or LDAP stores, or... 4198 NOTE: The code is currently UNTESTED and isn't really used anywhere. 4199 [Richard Levitte] 4200 4201 *) Add a generic structure called OPENSSL_ITEM. This can be used to 4202 pass a list of arguments to any function as well as provide a way 4203 for a function to pass data back to the caller. 4204 [Richard Levitte] 4205 4206 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 4207 works like BUF_strdup() but can be used to duplicate a portion of 4208 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 4209 a memory area. 4210 [Richard Levitte] 4211 4212 *) Add the function sk_find_ex() which works like sk_find(), but will 4213 return an index to an element even if an exact match couldn't be 4214 found. The index is guaranteed to point at the element where the 4215 searched-for key would be inserted to preserve sorting order. 4216 [Richard Levitte] 4217 4218 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 4219 takes an extra flags argument for optional functionality. Currently, 4220 the following flags are defined: 4221 4222 OBJ_BSEARCH_VALUE_ON_NOMATCH 4223 This one gets OBJ_bsearch_ex() to return a pointer to the first 4224 element where the comparing function returns a negative or zero 4225 number. 4226 4227 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 4228 This one gets OBJ_bsearch_ex() to return a pointer to the first 4229 element where the comparing function returns zero. This is useful 4230 if there are more than one element where the comparing function 4231 returns zero. 4232 [Richard Levitte] 4233 4234 *) Make it possible to create self-signed certificates with 'openssl ca' 4235 in such a way that the self-signed certificate becomes part of the 4236 CA database and uses the same mechanisms for serial number generation 4237 as all other certificate signing. The new flag '-selfsign' enables 4238 this functionality. Adapt CA.sh and CA.pl.in. 4239 [Richard Levitte] 4240 4241 *) Add functionality to check the public key of a certificate request 4242 against a given private. This is useful to check that a certificate 4243 request can be signed by that key (self-signing). 4244 [Richard Levitte] 4245 4246 *) Make it possible to have multiple active certificates with the same 4247 subject in the CA index file. This is done only if the keyword 4248 'unique_subject' is set to 'no' in the main CA section (default 4249 if 'CA_default') of the configuration file. The value is saved 4250 with the database itself in a separate index attribute file, 4251 named like the index file with '.attr' appended to the name. 4252 [Richard Levitte] 4253 4254 *) Generate muti valued AVAs using '+' notation in config files for 4255 req and dirName. 4256 [Steve Henson] 4257 4258 *) Support for nameConstraints certificate extension. 4259 [Steve Henson] 4260 4261 *) Support for policyConstraints certificate extension. 4262 [Steve Henson] 4263 4264 *) Support for policyMappings certificate extension. 4265 [Steve Henson] 4266 4267 *) Make sure the default DSA_METHOD implementation only uses its 4268 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 4269 and change its own handlers to be NULL so as to remove unnecessary 4270 indirection. This lets alternative implementations fallback to the 4271 default implementation more easily. 4272 [Geoff Thorpe] 4273 4274 *) Support for directoryName in GeneralName related extensions 4275 in config files. 4276 [Steve Henson] 4277 4278 *) Make it possible to link applications using Makefile.shared. 4279 Make that possible even when linking against static libraries! 4280 [Richard Levitte] 4281 4282 *) Support for single pass processing for S/MIME signing. This now 4283 means that S/MIME signing can be done from a pipe, in addition 4284 cleartext signing (multipart/signed type) is effectively streaming 4285 and the signed data does not need to be all held in memory. 4286 4287 This is done with a new flag PKCS7_STREAM. When this flag is set 4288 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 4289 is done after the data is output (and digests calculated) in 4290 SMIME_write_PKCS7(). 4291 [Steve Henson] 4292 4293 *) Add full support for -rpath/-R, both in shared libraries and 4294 applications, at least on the platforms where it's known how 4295 to do it. 4296 [Richard Levitte] 4297 4298 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 4299 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 4300 will now compute a table of multiples of the generator that 4301 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 4302 faster (notably in the case of a single point multiplication, 4303 scalar * generator). 4304 [Nils Larsch, Bodo Moeller] 4305 4306 *) IPv6 support for certificate extensions. The various extensions 4307 which use the IP:a.b.c.d can now take IPv6 addresses using the 4308 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 4309 correctly. 4310 [Steve Henson] 4311 4312 *) Added an ENGINE that implements RSA by performing private key 4313 exponentiations with the GMP library. The conversions to and from 4314 GMP's mpz_t format aren't optimised nor are any montgomery forms 4315 cached, and on x86 it appears OpenSSL's own performance has caught up. 4316 However there are likely to be other architectures where GMP could 4317 provide a boost. This ENGINE is not built in by default, but it can be 4318 specified at Configure time and should be accompanied by the necessary 4319 linker additions, eg; 4320 ./config -DOPENSSL_USE_GMP -lgmp 4321 [Geoff Thorpe] 4322 4323 *) "openssl engine" will not display ENGINE/DSO load failure errors when 4324 testing availability of engines with "-t" - the old behaviour is 4325 produced by increasing the feature's verbosity with "-tt". 4326 [Geoff Thorpe] 4327 4328 *) ECDSA routines: under certain error conditions uninitialized BN objects 4329 could be freed. Solution: make sure initialization is performed early 4330 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 4331 via PR#459) 4332 [Lutz Jaenicke] 4333 4334 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 4335 and DH_METHOD (eg. by ENGINE implementations) to override the normal 4336 software implementations. For DSA and DH, parameter generation can 4337 also be overriden by providing the appropriate method callbacks. 4338 [Geoff Thorpe] 4339 4340 *) Change the "progress" mechanism used in key-generation and 4341 primality testing to functions that take a new BN_GENCB pointer in 4342 place of callback/argument pairs. The new API functions have "_ex" 4343 postfixes and the older functions are reimplemented as wrappers for 4344 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 4345 declarations of the old functions to help (graceful) attempts to 4346 migrate to the new functions. Also, the new key-generation API 4347 functions operate on a caller-supplied key-structure and return 4348 success/failure rather than returning a key or NULL - this is to 4349 help make "keygen" another member function of RSA_METHOD etc. 4350 4351 Example for using the new callback interface: 4352 4353 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 4354 void *my_arg = ...; 4355 BN_GENCB my_cb; 4356 4357 BN_GENCB_set(&my_cb, my_callback, my_arg); 4358 4359 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 4360 /* For the meaning of a, b in calls to my_callback(), see the 4361 * documentation of the function that calls the callback. 4362 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 4363 * my_callback should return 1 if it wants BN_is_prime_ex() 4364 * to continue, or 0 to stop. 4365 */ 4366 4367 [Geoff Thorpe] 4368 4369 *) Change the ZLIB compression method to be stateful, and make it 4370 available to TLS with the number defined in 4371 draft-ietf-tls-compression-04.txt. 4372 [Richard Levitte] 4373 4374 *) Add the ASN.1 structures and functions for CertificatePair, which 4375 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 4376 4377 CertificatePair ::= SEQUENCE { 4378 forward [0] Certificate OPTIONAL, 4379 reverse [1] Certificate OPTIONAL, 4380 -- at least one of the pair shall be present -- } 4381 4382 Also implement the PEM functions to read and write certificate 4383 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 4384 4385 This needed to be defined, mostly for the sake of the LDAP 4386 attribute crossCertificatePair, but may prove useful elsewhere as 4387 well. 4388 [Richard Levitte] 4389 4390 *) Make it possible to inhibit symlinking of shared libraries in 4391 Makefile.shared, for Cygwin's sake. 4392 [Richard Levitte] 4393 4394 *) Extend the BIGNUM API by creating a function 4395 void BN_set_negative(BIGNUM *a, int neg); 4396 and a macro that behave like 4397 int BN_is_negative(const BIGNUM *a); 4398 4399 to avoid the need to access 'a->neg' directly in applications. 4400 [Nils Larsch] 4401 4402 *) Implement fast modular reduction for pseudo-Mersenne primes 4403 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 4404 EC_GROUP_new_curve_GFp() will now automatically use this 4405 if applicable. 4406 [Nils Larsch <nla@trustcenter.de>] 4407 4408 *) Add new lock type (CRYPTO_LOCK_BN). 4409 [Bodo Moeller] 4410 4411 *) Change the ENGINE framework to automatically load engines 4412 dynamically from specific directories unless they could be 4413 found to already be built in or loaded. Move all the 4414 current engines except for the cryptodev one to a new 4415 directory engines/. 4416 The engines in engines/ are built as shared libraries if 4417 the "shared" options was given to ./Configure or ./config. 4418 Otherwise, they are inserted in libcrypto.a. 4419 /usr/local/ssl/engines is the default directory for dynamic 4420 engines, but that can be overriden at configure time through 4421 the usual use of --prefix and/or --openssldir, and at run 4422 time with the environment variable OPENSSL_ENGINES. 4423 [Geoff Thorpe and Richard Levitte] 4424 4425 *) Add Makefile.shared, a helper makefile to build shared 4426 libraries. Addapt Makefile.org. 4427 [Richard Levitte] 4428 4429 *) Add version info to Win32 DLLs. 4430 [Peter 'Luna' Runestig" <peter@runestig.com>] 4431 4432 *) Add new 'medium level' PKCS#12 API. Certificates and keys 4433 can be added using this API to created arbitrary PKCS#12 4434 files while avoiding the low level API. 4435 4436 New options to PKCS12_create(), key or cert can be NULL and 4437 will then be omitted from the output file. The encryption 4438 algorithm NIDs can be set to -1 for no encryption, the mac 4439 iteration count can be set to 0 to omit the mac. 4440 4441 Enhance pkcs12 utility by making the -nokeys and -nocerts 4442 options work when creating a PKCS#12 file. New option -nomac 4443 to omit the mac, NONE can be set for an encryption algorithm. 4444 New code is modified to use the enhanced PKCS12_create() 4445 instead of the low level API. 4446 [Steve Henson] 4447 4448 *) Extend ASN1 encoder to support indefinite length constructed 4449 encoding. This can output sequences tags and octet strings in 4450 this form. Modify pk7_asn1.c to support indefinite length 4451 encoding. This is experimental and needs additional code to 4452 be useful, such as an ASN1 bio and some enhanced streaming 4453 PKCS#7 code. 4454 4455 Extend template encode functionality so that tagging is passed 4456 down to the template encoder. 4457 [Steve Henson] 4458 4459 *) Let 'openssl req' fail if an argument to '-newkey' is not 4460 recognized instead of using RSA as a default. 4461 [Bodo Moeller] 4462 4463 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 4464 As these are not official, they are not included in "ALL"; 4465 the "ECCdraft" ciphersuite group alias can be used to select them. 4466 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 4467 4468 *) Add ECDH engine support. 4469 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 4470 4471 *) Add ECDH in new directory crypto/ecdh/. 4472 [Douglas Stebila (Sun Microsystems Laboratories)] 4473 4474 *) Let BN_rand_range() abort with an error after 100 iterations 4475 without success (which indicates a broken PRNG). 4476 [Bodo Moeller] 4477 4478 *) Change BN_mod_sqrt() so that it verifies that the input value 4479 is really the square of the return value. (Previously, 4480 BN_mod_sqrt would show GIGO behaviour.) 4481 [Bodo Moeller] 4482 4483 *) Add named elliptic curves over binary fields from X9.62, SECG, 4484 and WAP/WTLS; add OIDs that were still missing. 4485 4486 [Sheueling Chang Shantz and Douglas Stebila 4487 (Sun Microsystems Laboratories)] 4488 4489 *) Extend the EC library for elliptic curves over binary fields 4490 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 4491 New EC_METHOD: 4492 4493 EC_GF2m_simple_method 4494 4495 New API functions: 4496 4497 EC_GROUP_new_curve_GF2m 4498 EC_GROUP_set_curve_GF2m 4499 EC_GROUP_get_curve_GF2m 4500 EC_POINT_set_affine_coordinates_GF2m 4501 EC_POINT_get_affine_coordinates_GF2m 4502 EC_POINT_set_compressed_coordinates_GF2m 4503 4504 Point compression for binary fields is disabled by default for 4505 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 4506 enable it). 4507 4508 As binary polynomials are represented as BIGNUMs, various members 4509 of the EC_GROUP and EC_POINT data structures can be shared 4510 between the implementations for prime fields and binary fields; 4511 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 4512 are essentially identical to their ..._GFp counterparts. 4513 (For simplicity, the '..._GFp' prefix has been dropped from 4514 various internal method names.) 4515 4516 An internal 'field_div' method (similar to 'field_mul' and 4517 'field_sqr') has been added; this is used only for binary fields. 4518 4519 [Sheueling Chang Shantz and Douglas Stebila 4520 (Sun Microsystems Laboratories)] 4521 4522 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 4523 through methods ('mul', 'precompute_mult'). 4524 4525 The generic implementations (now internally called 'ec_wNAF_mul' 4526 and 'ec_wNAF_precomputed_mult') remain the default if these 4527 methods are undefined. 4528 4529 [Sheueling Chang Shantz and Douglas Stebila 4530 (Sun Microsystems Laboratories)] 4531 4532 *) New function EC_GROUP_get_degree, which is defined through 4533 EC_METHOD. For curves over prime fields, this returns the bit 4534 length of the modulus. 4535 4536 [Sheueling Chang Shantz and Douglas Stebila 4537 (Sun Microsystems Laboratories)] 4538 4539 *) New functions EC_GROUP_dup, EC_POINT_dup. 4540 (These simply call ..._new and ..._copy). 4541 4542 [Sheueling Chang Shantz and Douglas Stebila 4543 (Sun Microsystems Laboratories)] 4544 4545 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 4546 Polynomials are represented as BIGNUMs (where the sign bit is not 4547 used) in the following functions [macros]: 4548 4549 BN_GF2m_add 4550 BN_GF2m_sub [= BN_GF2m_add] 4551 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 4552 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 4553 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 4554 BN_GF2m_mod_inv 4555 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 4556 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 4557 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 4558 BN_GF2m_cmp [= BN_ucmp] 4559 4560 (Note that only the 'mod' functions are actually for fields GF(2^m). 4561 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 4562 4563 For some functions, an the irreducible polynomial defining a 4564 field can be given as an 'unsigned int[]' with strictly 4565 decreasing elements giving the indices of those bits that are set; 4566 i.e., p[] represents the polynomial 4567 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 4568 where 4569 p[0] > p[1] > ... > p[k] = 0. 4570 This applies to the following functions: 4571 4572 BN_GF2m_mod_arr 4573 BN_GF2m_mod_mul_arr 4574 BN_GF2m_mod_sqr_arr 4575 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 4576 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 4577 BN_GF2m_mod_exp_arr 4578 BN_GF2m_mod_sqrt_arr 4579 BN_GF2m_mod_solve_quad_arr 4580 BN_GF2m_poly2arr 4581 BN_GF2m_arr2poly 4582 4583 Conversion can be performed by the following functions: 4584 4585 BN_GF2m_poly2arr 4586 BN_GF2m_arr2poly 4587 4588 bntest.c has additional tests for binary polynomial arithmetic. 4589 4590 Two implementations for BN_GF2m_mod_div() are available. 4591 The default algorithm simply uses BN_GF2m_mod_inv() and 4592 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 4593 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 4594 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 4595 4596 [Sheueling Chang Shantz and Douglas Stebila 4597 (Sun Microsystems Laboratories)] 4598 4599 *) Add new error code 'ERR_R_DISABLED' that can be used when some 4600 functionality is disabled at compile-time. 4601 [Douglas Stebila <douglas.stebila@sun.com>] 4602 4603 *) Change default behaviour of 'openssl asn1parse' so that more 4604 information is visible when viewing, e.g., a certificate: 4605 4606 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 4607 mode the content of non-printable OCTET STRINGs is output in a 4608 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 4609 avoid the appearance of a printable string. 4610 [Nils Larsch <nla@trustcenter.de>] 4611 4612 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 4613 functions 4614 EC_GROUP_set_asn1_flag() 4615 EC_GROUP_get_asn1_flag() 4616 EC_GROUP_set_point_conversion_form() 4617 EC_GROUP_get_point_conversion_form() 4618 These control ASN1 encoding details: 4619 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 4620 has been set to OPENSSL_EC_NAMED_CURVE. 4621 - Points are encoded in uncompressed form by default; options for 4622 asn1_for are as for point2oct, namely 4623 POINT_CONVERSION_COMPRESSED 4624 POINT_CONVERSION_UNCOMPRESSED 4625 POINT_CONVERSION_HYBRID 4626 4627 Also add 'seed' and 'seed_len' members to EC_GROUP with access 4628 functions 4629 EC_GROUP_set_seed() 4630 EC_GROUP_get0_seed() 4631 EC_GROUP_get_seed_len() 4632 This is used only for ASN1 purposes (so far). 4633 [Nils Larsch <nla@trustcenter.de>] 4634 4635 *) Add 'field_type' member to EC_METHOD, which holds the NID 4636 of the appropriate field type OID. The new function 4637 EC_METHOD_get_field_type() returns this value. 4638 [Nils Larsch <nla@trustcenter.de>] 4639 4640 *) Add functions 4641 EC_POINT_point2bn() 4642 EC_POINT_bn2point() 4643 EC_POINT_point2hex() 4644 EC_POINT_hex2point() 4645 providing useful interfaces to EC_POINT_point2oct() and 4646 EC_POINT_oct2point(). 4647 [Nils Larsch <nla@trustcenter.de>] 4648 4649 *) Change internals of the EC library so that the functions 4650 EC_GROUP_set_generator() 4651 EC_GROUP_get_generator() 4652 EC_GROUP_get_order() 4653 EC_GROUP_get_cofactor() 4654 are implemented directly in crypto/ec/ec_lib.c and not dispatched 4655 to methods, which would lead to unnecessary code duplication when 4656 adding different types of curves. 4657 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 4658 4659 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 4660 arithmetic, and such that modified wNAFs are generated 4661 (which avoid length expansion in many cases). 4662 [Bodo Moeller] 4663 4664 *) Add a function EC_GROUP_check_discriminant() (defined via 4665 EC_METHOD) that verifies that the curve discriminant is non-zero. 4666 4667 Add a function EC_GROUP_check() that makes some sanity tests 4668 on a EC_GROUP, its generator and order. This includes 4669 EC_GROUP_check_discriminant(). 4670 [Nils Larsch <nla@trustcenter.de>] 4671 4672 *) Add ECDSA in new directory crypto/ecdsa/. 4673 4674 Add applications 'openssl ecparam' and 'openssl ecdsa' 4675 (these are based on 'openssl dsaparam' and 'openssl dsa'). 4676 4677 ECDSA support is also included in various other files across the 4678 library. Most notably, 4679 - 'openssl req' now has a '-newkey ecdsa:file' option; 4680 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 4681 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 4682 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 4683 them suitable for ECDSA where domain parameters must be 4684 extracted before the specific public key; 4685 - ECDSA engine support has been added. 4686 [Nils Larsch <nla@trustcenter.de>] 4687 4688 *) Include some named elliptic curves, and add OIDs from X9.62, 4689 SECG, and WAP/WTLS. Each curve can be obtained from the new 4690 function 4691 EC_GROUP_new_by_curve_name(), 4692 and the list of available named curves can be obtained with 4693 EC_get_builtin_curves(). 4694 Also add a 'curve_name' member to EC_GROUP objects, which can be 4695 accessed via 4696 EC_GROUP_set_curve_name() 4697 EC_GROUP_get_curve_name() 4698 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 4699 4700 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 4701 was actually never needed) and in BN_mul(). The removal in BN_mul() 4702 required a small change in bn_mul_part_recursive() and the addition 4703 of the functions bn_cmp_part_words(), bn_sub_part_words() and 4704 bn_add_part_words(), which do the same thing as bn_cmp_words(), 4705 bn_sub_words() and bn_add_words() except they take arrays with 4706 differing sizes. 4707 [Richard Levitte] 4708 4709 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 4710 4711 *) Cleanse PEM buffers before freeing them since they may contain 4712 sensitive data. 4713 [Benjamin Bennett <ben@psc.edu>] 4714 4715 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 4716 a ciphersuite string such as "DEFAULT:RSA" cannot enable 4717 authentication-only ciphersuites. 4718 [Bodo Moeller] 4719 4720 *) Since AES128 and AES256 share a single mask bit in the logic of 4721 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 4722 kludge to work properly if AES128 is available and AES256 isn't. 4723 [Victor Duchovni] 4724 4725 *) Expand security boundary to match 1.1.1 module. 4726 [Steve Henson] 4727 4728 *) Remove redundant features: hash file source, editing of test vectors 4729 modify fipsld to use external fips_premain.c signature. 4730 [Steve Henson] 4731 4732 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 4733 run algorithm test programs. 4734 [Steve Henson] 4735 4736 *) Make algorithm test programs more tolerant of whitespace. 4737 [Steve Henson] 4738 4739 *) Have SSL/TLS server implementation tolerate "mismatched" record 4740 protocol version while receiving ClientHello even if the 4741 ClientHello is fragmented. (The server can't insist on the 4742 particular protocol version it has chosen before the ServerHello 4743 message has informed the client about his choice.) 4744 [Bodo Moeller] 4745 4746 *) Load error codes if they are not already present instead of using a 4747 static variable. This allows them to be cleanly unloaded and reloaded. 4748 [Steve Henson] 4749 4750 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 4751 4752 *) Introduce limits to prevent malicious keys being able to 4753 cause a denial of service. (CVE-2006-2940) 4754 [Steve Henson, Bodo Moeller] 4755 4756 *) Fix ASN.1 parsing of certain invalid structures that can result 4757 in a denial of service. (CVE-2006-2937) [Steve Henson] 4758 4759 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 4760 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 4761 4762 *) Fix SSL client code which could crash if connecting to a 4763 malicious SSLv2 server. (CVE-2006-4343) 4764 [Tavis Ormandy and Will Drewry, Google Security Team] 4765 4766 *) Change ciphersuite string processing so that an explicit 4767 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 4768 will no longer include "AES128-SHA"), and any other similar 4769 ciphersuite (same bitmap) from *other* protocol versions (so that 4770 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 4771 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 4772 changes from 0.9.8b and 0.9.8d. 4773 [Bodo Moeller] 4774 4775 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 4776 4777 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 4778 (CVE-2006-4339) [Ben Laurie and Google Security Team] 4779 4780 *) Change the Unix randomness entropy gathering to use poll() when 4781 possible instead of select(), since the latter has some 4782 undesirable limitations. 4783 [Darryl Miles via Richard Levitte and Bodo Moeller] 4784 4785 *) Disable rogue ciphersuites: 4786 4787 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 4788 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 4789 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 4790 4791 The latter two were purportedly from 4792 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 4793 appear there. 4794 4795 Also deactive the remaining ciphersuites from 4796 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 4797 unofficial, and the ID has long expired. 4798 [Bodo Moeller] 4799 4800 *) Fix RSA blinding Heisenbug (problems sometimes occured on 4801 dual-core machines) and other potential thread-safety issues. 4802 [Bodo Moeller] 4803 4804 Changes between 0.9.7i and 0.9.7j [04 May 2006] 4805 4806 *) Adapt fipsld and the build system to link against the validated FIPS 4807 module in FIPS mode. 4808 [Steve Henson] 4809 4810 *) Fixes for VC++ 2005 build under Windows. 4811 [Steve Henson] 4812 4813 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 4814 from a Windows bash shell such as MSYS. It is autodetected from the 4815 "config" script when run from a VC++ environment. Modify standard VC++ 4816 build to use fipscanister.o from the GNU make build. 4817 [Steve Henson] 4818 4819 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 4820 4821 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 4822 The value now differs depending on if you build for FIPS or not. 4823 BEWARE! A program linked with a shared FIPSed libcrypto can't be 4824 safely run with a non-FIPSed libcrypto, as it may crash because of 4825 the difference induced by this change. 4826 [Andy Polyakov] 4827 4828 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 4829 4830 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 4831 (part of SSL_OP_ALL). This option used to disable the 4832 countermeasure against man-in-the-middle protocol-version 4833 rollback in the SSL 2.0 server implementation, which is a bad 4834 idea. (CVE-2005-2969) 4835 4836 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 4837 for Information Security, National Institute of Advanced Industrial 4838 Science and Technology [AIST], Japan)] 4839 4840 *) Minimal support for X9.31 signatures and PSS padding modes. This is 4841 mainly for FIPS compliance and not fully integrated at this stage. 4842 [Steve Henson] 4843 4844 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 4845 the exponentiation using a fixed-length exponent. (Otherwise, 4846 the information leaked through timing could expose the secret key 4847 after many signatures; cf. Bleichenbacher's attack on DSA with 4848 biased k.) 4849 [Bodo Moeller] 4850 4851 *) Make a new fixed-window mod_exp implementation the default for 4852 RSA, DSA, and DH private-key operations so that the sequence of 4853 squares and multiplies and the memory access pattern are 4854 independent of the particular secret key. This will mitigate 4855 cache-timing and potential related attacks. 4856 4857 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 4858 and this is automatically used by BN_mod_exp_mont() if the new flag 4859 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 4860 will use this BN flag for private exponents unless the flag 4861 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 4862 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 4863 4864 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 4865 4866 *) Change the client implementation for SSLv23_method() and 4867 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 4868 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 4869 (Previously, the SSL 2.0 backwards compatible Client Hello 4870 message format would be used even with SSL_OP_NO_SSLv2.) 4871 [Bodo Moeller] 4872 4873 *) Add support for smime-type MIME parameter in S/MIME messages which some 4874 clients need. 4875 [Steve Henson] 4876 4877 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 4878 a threadsafe manner. Modify rsa code to use new function and add calls 4879 to dsa and dh code (which had race conditions before). 4880 [Steve Henson] 4881 4882 *) Include the fixed error library code in the C error file definitions 4883 instead of fixing them up at runtime. This keeps the error code 4884 structures constant. 4885 [Steve Henson] 4886 4887 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 4888 4889 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 4890 OpenSSL 0.9.8.] 4891 4892 *) Fixes for newer kerberos headers. NB: the casts are needed because 4893 the 'length' field is signed on one version and unsigned on another 4894 with no (?) obvious way to tell the difference, without these VC++ 4895 complains. Also the "definition" of FAR (blank) is no longer included 4896 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 4897 some needed definitions. 4898 [Steve Henson] 4899 4900 *) Undo Cygwin change. 4901 [Ulf M��ller] 4902 4903 *) Added support for proxy certificates according to RFC 3820. 4904 Because they may be a security thread to unaware applications, 4905 they must be explicitely allowed in run-time. See 4906 docs/HOWTO/proxy_certificates.txt for further information. 4907 [Richard Levitte] 4908 4909 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 4910 4911 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 4912 server and client random values. Previously 4913 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 4914 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 4915 4916 This change has negligible security impact because: 4917 4918 1. Server and client random values still have 24 bytes of pseudo random 4919 data. 4920 4921 2. Server and client random values are sent in the clear in the initial 4922 handshake. 4923 4924 3. The master secret is derived using the premaster secret (48 bytes in 4925 size for static RSA ciphersuites) as well as client server and random 4926 values. 4927 4928 The OpenSSL team would like to thank the UK NISCC for bringing this issue 4929 to our attention. 4930 4931 [Stephen Henson, reported by UK NISCC] 4932 4933 *) Use Windows randomness collection on Cygwin. 4934 [Ulf M��ller] 4935 4936 *) Fix hang in EGD/PRNGD query when communication socket is closed 4937 prematurely by EGD/PRNGD. 4938 [Darren Tucker <dtucker@zip.com.au> via Lutz J��nicke, resolves #1014] 4939 4940 *) Prompt for pass phrases when appropriate for PKCS12 input format. 4941 [Steve Henson] 4942 4943 *) Back-port of selected performance improvements from development 4944 branch, as well as improved support for PowerPC platforms. 4945 [Andy Polyakov] 4946 4947 *) Add lots of checks for memory allocation failure, error codes to indicate 4948 failure and freeing up memory if a failure occurs. 4949 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 4950 4951 *) Add new -passin argument to dgst. 4952 [Steve Henson] 4953 4954 *) Perform some character comparisons of different types in X509_NAME_cmp: 4955 this is needed for some certificates that reencode DNs into UTF8Strings 4956 (in violation of RFC3280) and can't or wont issue name rollover 4957 certificates. 4958 [Steve Henson] 4959 4960 *) Make an explicit check during certificate validation to see that 4961 the CA setting in each certificate on the chain is correct. As a 4962 side effect always do the following basic checks on extensions, 4963 not just when there's an associated purpose to the check: 4964 4965 - if there is an unhandled critical extension (unless the user 4966 has chosen to ignore this fault) 4967 - if the path length has been exceeded (if one is set at all) 4968 - that certain extensions fit the associated purpose (if one has 4969 been given) 4970 [Richard Levitte] 4971 4972 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 4973 4974 *) Avoid a race condition when CRLs are checked in a multi threaded 4975 environment. This would happen due to the reordering of the revoked 4976 entries during signature checking and serial number lookup. Now the 4977 encoding is cached and the serial number sort performed under a lock. 4978 Add new STACK function sk_is_sorted(). 4979 [Steve Henson] 4980 4981 *) Add Delta CRL to the extension code. 4982 [Steve Henson] 4983 4984 *) Various fixes to s3_pkt.c so alerts are sent properly. 4985 [David Holmes <d.holmes@f5.com>] 4986 4987 *) Reduce the chances of duplicate issuer name and serial numbers (in 4988 violation of RFC3280) using the OpenSSL certificate creation utilities. 4989 This is done by creating a random 64 bit value for the initial serial 4990 number when a serial number file is created or when a self signed 4991 certificate is created using 'openssl req -x509'. The initial serial 4992 number file is created using 'openssl x509 -next_serial' in CA.pl 4993 rather than being initialized to 1. 4994 [Steve Henson] 4995 4996 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 4997 4998 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 4999 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5000 [Joe Orton, Steve Henson] 5001 5002 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 5003 (CVE-2004-0112) 5004 [Joe Orton, Steve Henson] 5005 5006 *) Make it possible to have multiple active certificates with the same 5007 subject in the CA index file. This is done only if the keyword 5008 'unique_subject' is set to 'no' in the main CA section (default 5009 if 'CA_default') of the configuration file. The value is saved 5010 with the database itself in a separate index attribute file, 5011 named like the index file with '.attr' appended to the name. 5012 [Richard Levitte] 5013 5014 *) X509 verify fixes. Disable broken certificate workarounds when 5015 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 5016 keyUsage extension present. Don't accept CRLs with unhandled critical 5017 extensions: since verify currently doesn't process CRL extensions this 5018 rejects a CRL with *any* critical extensions. Add new verify error codes 5019 for these cases. 5020 [Steve Henson] 5021 5022 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 5023 A clarification of RFC2560 will require the use of OCTET STRINGs and 5024 some implementations cannot handle the current raw format. Since OpenSSL 5025 copies and compares OCSP nonces as opaque blobs without any attempt at 5026 parsing them this should not create any compatibility issues. 5027 [Steve Henson] 5028 5029 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 5030 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 5031 this HMAC (and other) operations are several times slower than OpenSSL 5032 < 0.9.7. 5033 [Steve Henson] 5034 5035 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 5036 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 5037 5038 *) Use the correct content when signing type "other". 5039 [Steve Henson] 5040 5041 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 5042 5043 *) Fix various bugs revealed by running the NISCC test suite: 5044 5045 Stop out of bounds reads in the ASN1 code when presented with 5046 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5047 5048 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 5049 5050 If verify callback ignores invalid public key errors don't try to check 5051 certificate signature with the NULL public key. 5052 5053 [Steve Henson] 5054 5055 *) New -ignore_err option in ocsp application to stop the server 5056 exiting on the first error in a request. 5057 [Steve Henson] 5058 5059 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5060 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5061 specifications. 5062 [Steve Henson] 5063 5064 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5065 extra data after the compression methods not only for TLS 1.0 5066 but also for SSL 3.0 (as required by the specification). 5067 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5068 5069 *) Change X509_certificate_type() to mark the key as exported/exportable 5070 when it's 512 *bits* long, not 512 bytes. 5071 [Richard Levitte] 5072 5073 *) Change AES_cbc_encrypt() so it outputs exact multiple of 5074 blocks during encryption. 5075 [Richard Levitte] 5076 5077 *) Various fixes to base64 BIO and non blocking I/O. On write 5078 flushes were not handled properly if the BIO retried. On read 5079 data was not being buffered properly and had various logic bugs. 5080 This also affects blocking I/O when the data being decoded is a 5081 certain size. 5082 [Steve Henson] 5083 5084 *) Various S/MIME bugfixes and compatibility changes: 5085 output correct application/pkcs7 MIME type if 5086 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 5087 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 5088 of files as .eml work). Correctly handle very long lines in MIME 5089 parser. 5090 [Steve Henson] 5091 5092 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 5093 5094 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5095 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5096 a protocol version number mismatch like a decryption error 5097 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5098 [Bodo Moeller] 5099 5100 *) Turn on RSA blinding by default in the default implementation 5101 to avoid a timing attack. Applications that don't want it can call 5102 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5103 They would be ill-advised to do so in most cases. 5104 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5105 5106 *) Change RSA blinding code so that it works when the PRNG is not 5107 seeded (in this case, the secret RSA exponent is abused as 5108 an unpredictable seed -- if it is not unpredictable, there 5109 is no point in blinding anyway). Make RSA blinding thread-safe 5110 by remembering the creator's thread ID in rsa->blinding and 5111 having all other threads use local one-time blinding factors 5112 (this requires more computation than sharing rsa->blinding, but 5113 avoids excessive locking; and if an RSA object is not shared 5114 between threads, blinding will still be very fast). 5115 [Bodo Moeller] 5116 5117 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 5118 ENGINE as defaults for all supported algorithms irrespective of 5119 the 'flags' parameter. 'flags' is now honoured, so applications 5120 should make sure they are passing it correctly. 5121 [Geoff Thorpe] 5122 5123 *) Target "mingw" now allows native Windows code to be generated in 5124 the Cygwin environment as well as with the MinGW compiler. 5125 [Ulf Moeller] 5126 5127 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 5128 5129 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5130 via timing by performing a MAC computation even if incorrrect 5131 block cipher padding has been found. This is a countermeasure 5132 against active attacks where the attacker has to distinguish 5133 between bad padding and a MAC verification error. (CVE-2003-0078) 5134 5135 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5136 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5137 Martin Vuagnoux (EPFL, Ilion)] 5138 5139 *) Make the no-err option work as intended. The intention with no-err 5140 is not to have the whole error stack handling routines removed from 5141 libcrypto, it's only intended to remove all the function name and 5142 reason texts, thereby removing some of the footprint that may not 5143 be interesting if those errors aren't displayed anyway. 5144 5145 NOTE: it's still possible for any application or module to have it's 5146 own set of error texts inserted. The routines are there, just not 5147 used by default when no-err is given. 5148 [Richard Levitte] 5149 5150 *) Add support for FreeBSD on IA64. 5151 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 5152 5153 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 5154 Kerberos function mit_des_cbc_cksum(). Before this change, 5155 the value returned by DES_cbc_cksum() was like the one from 5156 mit_des_cbc_cksum(), except the bytes were swapped. 5157 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 5158 5159 *) Allow an application to disable the automatic SSL chain building. 5160 Before this a rather primitive chain build was always performed in 5161 ssl3_output_cert_chain(): an application had no way to send the 5162 correct chain if the automatic operation produced an incorrect result. 5163 5164 Now the chain builder is disabled if either: 5165 5166 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 5167 5168 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 5169 5170 The reasoning behind this is that an application would not want the 5171 auto chain building to take place if extra chain certificates are 5172 present and it might also want a means of sending no additional 5173 certificates (for example the chain has two certificates and the 5174 root is omitted). 5175 [Steve Henson] 5176 5177 *) Add the possibility to build without the ENGINE framework. 5178 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5179 5180 *) Under Win32 gmtime() can return NULL: check return value in 5181 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 5182 [Steve Henson] 5183 5184 *) DSA routines: under certain error conditions uninitialized BN objects 5185 could be freed. Solution: make sure initialization is performed early 5186 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 5187 Nils Larsch <nla@trustcenter.de> via PR#459) 5188 [Lutz Jaenicke] 5189 5190 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 5191 checked on reconnect on the client side, therefore session resumption 5192 could still fail with a "ssl session id is different" error. This 5193 behaviour is masked when SSL_OP_ALL is used due to 5194 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 5195 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5196 followup to PR #377. 5197 [Lutz Jaenicke] 5198 5199 *) IA-32 assembler support enhancements: unified ELF targets, support 5200 for SCO/Caldera platforms, fix for Cygwin shared build. 5201 [Andy Polyakov] 5202 5203 *) Add support for FreeBSD on sparc64. As a consequence, support for 5204 FreeBSD on non-x86 processors is separate from x86 processors on 5205 the config script, much like the NetBSD support. 5206 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 5207 5208 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 5209 5210 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 5211 OpenSSL 0.9.7.] 5212 5213 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 5214 code (06) was taken as the first octet of the session ID and the last 5215 octet was ignored consequently. As a result SSLv2 client side session 5216 caching could not have worked due to the session ID mismatch between 5217 client and server. 5218 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5219 PR #377. 5220 [Lutz Jaenicke] 5221 5222 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 5223 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 5224 removed entirely. 5225 [Richard Levitte] 5226 5227 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 5228 seems that in spite of existing for more than a year, many application 5229 author have done nothing to provide the necessary callbacks, which 5230 means that this particular engine will not work properly anywhere. 5231 This is a very unfortunate situation which forces us, in the name 5232 of usability, to give the hw_ncipher.c a static lock, which is part 5233 of libcrypto. 5234 NOTE: This is for the 0.9.7 series ONLY. This hack will never 5235 appear in 0.9.8 or later. We EXPECT application authors to have 5236 dealt properly with this when 0.9.8 is released (unless we actually 5237 make such changes in the libcrypto locking code that changes will 5238 have to be made anyway). 5239 [Richard Levitte] 5240 5241 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 5242 octets have been read, EOF or an error occurs. Without this change 5243 some truncated ASN1 structures will not produce an error. 5244 [Steve Henson] 5245 5246 *) Disable Heimdal support, since it hasn't been fully implemented. 5247 Still give the possibility to force the use of Heimdal, but with 5248 warnings and a request that patches get sent to openssl-dev. 5249 [Richard Levitte] 5250 5251 *) Add the VC-CE target, introduce the WINCE sysname, and add 5252 INSTALL.WCE and appropriate conditionals to make it build. 5253 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5254 5255 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 5256 cygssl-x.y.z.dll, where x, y and z are the major, minor and 5257 edit numbers of the version. 5258 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 5259 5260 *) Introduce safe string copy and catenation functions 5261 (BUF_strlcpy() and BUF_strlcat()). 5262 [Ben Laurie (CHATS) and Richard Levitte] 5263 5264 *) Avoid using fixed-size buffers for one-line DNs. 5265 [Ben Laurie (CHATS)] 5266 5267 *) Add BUF_MEM_grow_clean() to avoid information leakage when 5268 resizing buffers containing secrets, and use where appropriate. 5269 [Ben Laurie (CHATS)] 5270 5271 *) Avoid using fixed size buffers for configuration file location. 5272 [Ben Laurie (CHATS)] 5273 5274 *) Avoid filename truncation for various CA files. 5275 [Ben Laurie (CHATS)] 5276 5277 *) Use sizeof in preference to magic numbers. 5278 [Ben Laurie (CHATS)] 5279 5280 *) Avoid filename truncation in cert requests. 5281 [Ben Laurie (CHATS)] 5282 5283 *) Add assertions to check for (supposedly impossible) buffer 5284 overflows. 5285 [Ben Laurie (CHATS)] 5286 5287 *) Don't cache truncated DNS entries in the local cache (this could 5288 potentially lead to a spoofing attack). 5289 [Ben Laurie (CHATS)] 5290 5291 *) Fix various buffers to be large enough for hex/decimal 5292 representations in a platform independent manner. 5293 [Ben Laurie (CHATS)] 5294 5295 *) Add CRYPTO_realloc_clean() to avoid information leakage when 5296 resizing buffers containing secrets, and use where appropriate. 5297 [Ben Laurie (CHATS)] 5298 5299 *) Add BIO_indent() to avoid much slightly worrying code to do 5300 indents. 5301 [Ben Laurie (CHATS)] 5302 5303 *) Convert sprintf()/BIO_puts() to BIO_printf(). 5304 [Ben Laurie (CHATS)] 5305 5306 *) buffer_gets() could terminate with the buffer only half 5307 full. Fixed. 5308 [Ben Laurie (CHATS)] 5309 5310 *) Add assertions to prevent user-supplied crypto functions from 5311 overflowing internal buffers by having large block sizes, etc. 5312 [Ben Laurie (CHATS)] 5313 5314 *) New OPENSSL_assert() macro (similar to assert(), but enabled 5315 unconditionally). 5316 [Ben Laurie (CHATS)] 5317 5318 *) Eliminate unused copy of key in RC4. 5319 [Ben Laurie (CHATS)] 5320 5321 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 5322 [Ben Laurie (CHATS)] 5323 5324 *) Fix off-by-one error in EGD path. 5325 [Ben Laurie (CHATS)] 5326 5327 *) If RANDFILE path is too long, ignore instead of truncating. 5328 [Ben Laurie (CHATS)] 5329 5330 *) Eliminate unused and incorrectly sized X.509 structure 5331 CBCParameter. 5332 [Ben Laurie (CHATS)] 5333 5334 *) Eliminate unused and dangerous function knumber(). 5335 [Ben Laurie (CHATS)] 5336 5337 *) Eliminate unused and dangerous structure, KSSL_ERR. 5338 [Ben Laurie (CHATS)] 5339 5340 *) Protect against overlong session ID context length in an encoded 5341 session object. Since these are local, this does not appear to be 5342 exploitable. 5343 [Ben Laurie (CHATS)] 5344 5345 *) Change from security patch (see 0.9.6e below) that did not affect 5346 the 0.9.6 release series: 5347 5348 Remote buffer overflow in SSL3 protocol - an attacker could 5349 supply an oversized master key in Kerberos-enabled versions. 5350 (CVE-2002-0657) 5351 [Ben Laurie (CHATS)] 5352 5353 *) Change the SSL kerb5 codes to match RFC 2712. 5354 [Richard Levitte] 5355 5356 *) Make -nameopt work fully for req and add -reqopt switch. 5357 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 5358 5359 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 5360 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 5361 5362 *) Make sure tests can be performed even if the corresponding algorithms 5363 have been removed entirely. This was also the last step to make 5364 OpenSSL compilable with DJGPP under all reasonable conditions. 5365 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 5366 5367 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 5368 to allow version independent disabling of normally unselected ciphers, 5369 which may be activated as a side-effect of selecting a single cipher. 5370 5371 (E.g., cipher list string "RSA" enables ciphersuites that are left 5372 out of "ALL" because they do not provide symmetric encryption. 5373 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 5374 [Lutz Jaenicke, Bodo Moeller] 5375 5376 *) Add appropriate support for separate platform-dependent build 5377 directories. The recommended way to make a platform-dependent 5378 build directory is the following (tested on Linux), maybe with 5379 some local tweaks: 5380 5381 # Place yourself outside of the OpenSSL source tree. In 5382 # this example, the environment variable OPENSSL_SOURCE 5383 # is assumed to contain the absolute OpenSSL source directory. 5384 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 5385 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 5386 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 5387 mkdir -p `dirname $F` 5388 ln -s $OPENSSL_SOURCE/$F $F 5389 done 5390 5391 To be absolutely sure not to disturb the source tree, a "make clean" 5392 is a good thing. If it isn't successfull, don't worry about it, 5393 it probably means the source directory is very clean. 5394 [Richard Levitte] 5395 5396 *) Make sure any ENGINE control commands make local copies of string 5397 pointers passed to them whenever necessary. Otherwise it is possible 5398 the caller may have overwritten (or deallocated) the original string 5399 data when a later ENGINE operation tries to use the stored values. 5400 [G��tz Babin-Ebell <babinebell@trustcenter.de>] 5401 5402 *) Improve diagnostics in file reading and command-line digests. 5403 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 5404 5405 *) Add AES modes CFB and OFB to the object database. Correct an 5406 error in AES-CFB decryption. 5407 [Richard Levitte] 5408 5409 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 5410 allows existing EVP_CIPHER_CTX structures to be reused after 5411 calling EVP_*Final(). This behaviour is used by encryption 5412 BIOs and some applications. This has the side effect that 5413 applications must explicitly clean up cipher contexts with 5414 EVP_CIPHER_CTX_cleanup() or they will leak memory. 5415 [Steve Henson] 5416 5417 *) Check the values of dna and dnb in bn_mul_recursive before calling 5418 bn_mul_comba (a non zero value means the a or b arrays do not contain 5419 n2 elements) and fallback to bn_mul_normal if either is not zero. 5420 [Steve Henson] 5421 5422 *) Fix escaping of non-ASCII characters when using the -subj option 5423 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 5424 [Lutz Jaenicke] 5425 5426 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 5427 form for "surname", serialNumber has no short form. 5428 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 5429 therefore remove "mail" short name for "internet 7". 5430 The OID for unique identifiers in X509 certificates is 5431 x500UniqueIdentifier, not uniqueIdentifier. 5432 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 5433 [Lutz Jaenicke] 5434 5435 *) Add an "init" command to the ENGINE config module and auto initialize 5436 ENGINEs. Without any "init" command the ENGINE will be initialized 5437 after all ctrl commands have been executed on it. If init=1 the 5438 ENGINE is initailized at that point (ctrls before that point are run 5439 on the uninitialized ENGINE and after on the initialized one). If 5440 init=0 then the ENGINE will not be iniatialized at all. 5441 [Steve Henson] 5442 5443 *) Fix the 'app_verify_callback' interface so that the user-defined 5444 argument is actually passed to the callback: In the 5445 SSL_CTX_set_cert_verify_callback() prototype, the callback 5446 declaration has been changed from 5447 int (*cb)() 5448 into 5449 int (*cb)(X509_STORE_CTX *,void *); 5450 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 5451 i=s->ctx->app_verify_callback(&ctx) 5452 has been changed into 5453 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 5454 5455 To update applications using SSL_CTX_set_cert_verify_callback(), 5456 a dummy argument can be added to their callback functions. 5457 [D. K. Smetters <smetters@parc.xerox.com>] 5458 5459 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 5460 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 5461 5462 *) Add and OPENSSL_LOAD_CONF define which will cause 5463 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 5464 This allows older applications to transparently support certain 5465 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 5466 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 5467 load the config file and OPENSSL_add_all_algorithms_conf() which will 5468 always load it have also been added. 5469 [Steve Henson] 5470 5471 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 5472 Adjust NIDs and EVP layer. 5473 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5474 5475 *) Config modules support in openssl utility. 5476 5477 Most commands now load modules from the config file, 5478 though in a few (such as version) this isn't done 5479 because it couldn't be used for anything. 5480 5481 In the case of ca and req the config file used is 5482 the same as the utility itself: that is the -config 5483 command line option can be used to specify an 5484 alternative file. 5485 [Steve Henson] 5486 5487 *) Move default behaviour from OPENSSL_config(). If appname is NULL 5488 use "openssl_conf" if filename is NULL use default openssl config file. 5489 [Steve Henson] 5490 5491 *) Add an argument to OPENSSL_config() to allow the use of an alternative 5492 config section name. Add a new flag to tolerate a missing config file 5493 and move code to CONF_modules_load_file(). 5494 [Steve Henson] 5495 5496 *) Support for crypto accelerator cards from Accelerated Encryption 5497 Processing, www.aep.ie. (Use engine 'aep') 5498 The support was copied from 0.9.6c [engine] and adapted/corrected 5499 to work with the new engine framework. 5500 [AEP Inc. and Richard Levitte] 5501 5502 *) Support for SureWare crypto accelerator cards from Baltimore 5503 Technologies. (Use engine 'sureware') 5504 The support was copied from 0.9.6c [engine] and adapted 5505 to work with the new engine framework. 5506 [Richard Levitte] 5507 5508 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 5509 make the newer ENGINE framework commands for the CHIL engine work. 5510 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 5511 5512 *) Make it possible to produce shared libraries on ReliantUNIX. 5513 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 5514 5515 *) Add the configuration target debug-linux-ppro. 5516 Make 'openssl rsa' use the general key loading routines 5517 implemented in apps.c, and make those routines able to 5518 handle the key format FORMAT_NETSCAPE and the variant 5519 FORMAT_IISSGC. 5520 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5521 5522 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 5523 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5524 5525 *) Add -keyform to rsautl, and document -engine. 5526 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 5527 5528 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 5529 BIO_R_NO_SUCH_FILE error code rather than the generic 5530 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 5531 [Ben Laurie] 5532 5533 *) Add new functions 5534 ERR_peek_last_error 5535 ERR_peek_last_error_line 5536 ERR_peek_last_error_line_data. 5537 These are similar to 5538 ERR_peek_error 5539 ERR_peek_error_line 5540 ERR_peek_error_line_data, 5541 but report on the latest error recorded rather than the first one 5542 still in the error queue. 5543 [Ben Laurie, Bodo Moeller] 5544 5545 *) default_algorithms option in ENGINE config module. This allows things 5546 like: 5547 default_algorithms = ALL 5548 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 5549 [Steve Henson] 5550 5551 *) Prelminary ENGINE config module. 5552 [Steve Henson] 5553 5554 *) New experimental application configuration code. 5555 [Steve Henson] 5556 5557 *) Change the AES code to follow the same name structure as all other 5558 symmetric ciphers, and behave the same way. Move everything to 5559 the directory crypto/aes, thereby obsoleting crypto/rijndael. 5560 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5561 5562 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 5563 [Ben Laurie and Theo de Raadt] 5564 5565 *) Add option to output public keys in req command. 5566 [Massimiliano Pala madwolf@openca.org] 5567 5568 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 5569 (up to about 10% better than before for P-192 and P-224). 5570 [Bodo Moeller] 5571 5572 *) New functions/macros 5573 5574 SSL_CTX_set_msg_callback(ctx, cb) 5575 SSL_CTX_set_msg_callback_arg(ctx, arg) 5576 SSL_set_msg_callback(ssl, cb) 5577 SSL_set_msg_callback_arg(ssl, arg) 5578 5579 to request calling a callback function 5580 5581 void cb(int write_p, int version, int content_type, 5582 const void *buf, size_t len, SSL *ssl, void *arg) 5583 5584 whenever a protocol message has been completely received 5585 (write_p == 0) or sent (write_p == 1). Here 'version' is the 5586 protocol version according to which the SSL library interprets 5587 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 5588 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 5589 the content type as defined in the SSL 3.0/TLS 1.0 protocol 5590 specification (change_cipher_spec(20), alert(21), handshake(22)). 5591 'buf' and 'len' point to the actual message, 'ssl' to the 5592 SSL object, and 'arg' is the application-defined value set by 5593 SSL[_CTX]_set_msg_callback_arg(). 5594 5595 'openssl s_client' and 'openssl s_server' have new '-msg' options 5596 to enable a callback that displays all protocol messages. 5597 [Bodo Moeller] 5598 5599 *) Change the shared library support so shared libraries are built as 5600 soon as the corresponding static library is finished, and thereby get 5601 openssl and the test programs linked against the shared library. 5602 This still only happens when the keyword "shard" has been given to 5603 the configuration scripts. 5604 5605 NOTE: shared library support is still an experimental thing, and 5606 backward binary compatibility is still not guaranteed. 5607 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 5608 5609 *) Add support for Subject Information Access extension. 5610 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 5611 5612 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 5613 additional bytes when new memory had to be allocated, not just 5614 when reusing an existing buffer. 5615 [Bodo Moeller] 5616 5617 *) New command line and configuration option 'utf8' for the req command. 5618 This allows field values to be specified as UTF8 strings. 5619 [Steve Henson] 5620 5621 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 5622 runs for the former and machine-readable output for the latter. 5623 [Ben Laurie] 5624 5625 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 5626 of the e-mail address in the DN (i.e., it will go into a certificate 5627 extension only). The new configuration file option 'email_in_dn = no' 5628 has the same effect. 5629 [Massimiliano Pala madwolf@openca.org] 5630 5631 *) Change all functions with names starting with des_ to be starting 5632 with DES_ instead. Add wrappers that are compatible with libdes, 5633 but are named _ossl_old_des_*. Finally, add macros that map the 5634 des_* symbols to the corresponding _ossl_old_des_* if libdes 5635 compatibility is desired. If OpenSSL 0.9.6c compatibility is 5636 desired, the des_* symbols will be mapped to DES_*, with one 5637 exception. 5638 5639 Since we provide two compatibility mappings, the user needs to 5640 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 5641 compatibility is desired. The default (i.e., when that macro 5642 isn't defined) is OpenSSL 0.9.6c compatibility. 5643 5644 There are also macros that enable and disable the support of old 5645 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 5646 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 5647 are defined, the default will apply: to support the old des routines. 5648 5649 In either case, one must include openssl/des.h to get the correct 5650 definitions. Do not try to just include openssl/des_old.h, that 5651 won't work. 5652 5653 NOTE: This is a major break of an old API into a new one. Software 5654 authors are encouraged to switch to the DES_ style functions. Some 5655 time in the future, des_old.h and the libdes compatibility functions 5656 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 5657 default), and then completely removed. 5658 [Richard Levitte] 5659 5660 *) Test for certificates which contain unsupported critical extensions. 5661 If such a certificate is found during a verify operation it is 5662 rejected by default: this behaviour can be overridden by either 5663 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 5664 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 5665 X509_supported_extension() has also been added which returns 1 if a 5666 particular extension is supported. 5667 [Steve Henson] 5668 5669 *) Modify the behaviour of EVP cipher functions in similar way to digests 5670 to retain compatibility with existing code. 5671 [Steve Henson] 5672 5673 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 5674 compatibility with existing code. In particular the 'ctx' parameter does 5675 not have to be to be initialized before the call to EVP_DigestInit() and 5676 it is tidied up after a call to EVP_DigestFinal(). New function 5677 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 5678 EVP_MD_CTX_copy() changed to not require the destination to be 5679 initialized valid and new function EVP_MD_CTX_copy_ex() added which 5680 requires the destination to be valid. 5681 5682 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 5683 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 5684 [Steve Henson] 5685 5686 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 5687 so that complete 'Handshake' protocol structures are kept in memory 5688 instead of overwriting 'msg_type' and 'length' with 'body' data. 5689 [Bodo Moeller] 5690 5691 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 5692 [Massimo Santin via Richard Levitte] 5693 5694 *) Major restructuring to the underlying ENGINE code. This includes 5695 reduction of linker bloat, separation of pure "ENGINE" manipulation 5696 (initialisation, etc) from functionality dealing with implementations 5697 of specific crypto iterfaces. This change also introduces integrated 5698 support for symmetric ciphers and digest implementations - so ENGINEs 5699 can now accelerate these by providing EVP_CIPHER and EVP_MD 5700 implementations of their own. This is detailed in crypto/engine/README 5701 as it couldn't be adequately described here. However, there are a few 5702 API changes worth noting - some RSA, DSA, DH, and RAND functions that 5703 were changed in the original introduction of ENGINE code have now 5704 reverted back - the hooking from this code to ENGINE is now a good 5705 deal more passive and at run-time, operations deal directly with 5706 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 5707 dereferencing through an ENGINE pointer any more. Also, the ENGINE 5708 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 5709 they were not being used by the framework as there is no concept of a 5710 BIGNUM_METHOD and they could not be generalised to the new 5711 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 5712 ENGINE_cpy() has been removed as it cannot be consistently defined in 5713 the new code. 5714 [Geoff Thorpe] 5715 5716 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 5717 [Steve Henson] 5718 5719 *) Change mkdef.pl to sort symbols that get the same entry number, 5720 and make sure the automatically generated functions ERR_load_* 5721 become part of libeay.num as well. 5722 [Richard Levitte] 5723 5724 *) New function SSL_renegotiate_pending(). This returns true once 5725 renegotiation has been requested (either SSL_renegotiate() call 5726 or HelloRequest/ClientHello receveived from the peer) and becomes 5727 false once a handshake has been completed. 5728 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 5729 sends a HelloRequest, but does not ensure that a handshake takes 5730 place. SSL_renegotiate_pending() is useful for checking if the 5731 client has followed the request.) 5732 [Bodo Moeller] 5733 5734 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 5735 By default, clients may request session resumption even during 5736 renegotiation (if session ID contexts permit); with this option, 5737 session resumption is possible only in the first handshake. 5738 5739 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 5740 more bits available for options that should not be part of 5741 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 5742 [Bodo Moeller] 5743 5744 *) Add some demos for certificate and certificate request creation. 5745 [Steve Henson] 5746 5747 *) Make maximum certificate chain size accepted from the peer application 5748 settable (SSL*_get/set_max_cert_list()), as proposed by 5749 "Douglas E. Engert" <deengert@anl.gov>. 5750 [Lutz Jaenicke] 5751 5752 *) Add support for shared libraries for Unixware-7 5753 (Boyd Lynn Gerber <gerberb@zenez.com>). 5754 [Lutz Jaenicke] 5755 5756 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 5757 be done prior to destruction. Use this to unload error strings from 5758 ENGINEs that load their own error strings. NB: This adds two new API 5759 functions to "get" and "set" this destroy handler in an ENGINE. 5760 [Geoff Thorpe] 5761 5762 *) Alter all existing ENGINE implementations (except "openssl" and 5763 "openbsd") to dynamically instantiate their own error strings. This 5764 makes them more flexible to be built both as statically-linked ENGINEs 5765 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 5766 Also, add stub code to each that makes building them as self-contained 5767 shared-libraries easier (see README.ENGINE). 5768 [Geoff Thorpe] 5769 5770 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 5771 implementations into applications that are completely implemented in 5772 self-contained shared-libraries. The "dynamic" ENGINE exposes control 5773 commands that can be used to configure what shared-library to load and 5774 to control aspects of the way it is handled. Also, made an update to 5775 the README.ENGINE file that brings its information up-to-date and 5776 provides some information and instructions on the "dynamic" ENGINE 5777 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 5778 [Geoff Thorpe] 5779 5780 *) Make it possible to unload ranges of ERR strings with a new 5781 "ERR_unload_strings" function. 5782 [Geoff Thorpe] 5783 5784 *) Add a copy() function to EVP_MD. 5785 [Ben Laurie] 5786 5787 *) Make EVP_MD routines take a context pointer instead of just the 5788 md_data void pointer. 5789 [Ben Laurie] 5790 5791 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 5792 that the digest can only process a single chunk of data 5793 (typically because it is provided by a piece of 5794 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 5795 is only going to provide a single chunk of data, and hence the 5796 framework needn't accumulate the data for oneshot drivers. 5797 [Ben Laurie] 5798 5799 *) As with "ERR", make it possible to replace the underlying "ex_data" 5800 functions. This change also alters the storage and management of global 5801 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 5802 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 5803 index counters. The API functions that use this state have been changed 5804 to take a "class_index" rather than pointers to the class's local STACK 5805 and counter, and there is now an API function to dynamically create new 5806 classes. This centralisation allows us to (a) plug a lot of the 5807 thread-safety problems that existed, and (b) makes it possible to clean 5808 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 5809 such data would previously have always leaked in application code and 5810 workarounds were in place to make the memory debugging turn a blind eye 5811 to it. Application code that doesn't use this new function will still 5812 leak as before, but their memory debugging output will announce it now 5813 rather than letting it slide. 5814 5815 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 5816 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 5817 has a return value to indicate success or failure. 5818 [Geoff Thorpe] 5819 5820 *) Make it possible to replace the underlying "ERR" functions such that the 5821 global state (2 LHASH tables and 2 locks) is only used by the "default" 5822 implementation. This change also adds two functions to "get" and "set" 5823 the implementation prior to it being automatically set the first time 5824 any other ERR function takes place. Ie. an application can call "get", 5825 pass the return value to a module it has just loaded, and that module 5826 can call its own "set" function using that value. This means the 5827 module's "ERR" operations will use (and modify) the error state in the 5828 application and not in its own statically linked copy of OpenSSL code. 5829 [Geoff Thorpe] 5830 5831 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 5832 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 5833 the operation, and provides a more encapsulated way for external code 5834 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 5835 to use these functions rather than manually incrementing the counts. 5836 5837 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 5838 [Geoff Thorpe] 5839 5840 *) Add EVP test program. 5841 [Ben Laurie] 5842 5843 *) Add symmetric cipher support to ENGINE. Expect the API to change! 5844 [Ben Laurie] 5845 5846 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 5847 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 5848 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 5849 These allow a CRL to be built without having to access X509_CRL fields 5850 directly. Modify 'ca' application to use new functions. 5851 [Steve Henson] 5852 5853 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 5854 bug workarounds. Rollback attack detection is a security feature. 5855 The problem will only arise on OpenSSL servers when TLSv1 is not 5856 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 5857 Software authors not wanting to support TLSv1 will have special reasons 5858 for their choice and can explicitly enable this option. 5859 [Bodo Moeller, Lutz Jaenicke] 5860 5861 *) Rationalise EVP so it can be extended: don't include a union of 5862 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 5863 (similar to those existing for EVP_CIPHER_CTX). 5864 Usage example: 5865 5866 EVP_MD_CTX md; 5867 5868 EVP_MD_CTX_init(&md); /* new function call */ 5869 EVP_DigestInit(&md, EVP_sha1()); 5870 EVP_DigestUpdate(&md, in, len); 5871 EVP_DigestFinal(&md, out, NULL); 5872 EVP_MD_CTX_cleanup(&md); /* new function call */ 5873 5874 [Ben Laurie] 5875 5876 *) Make DES key schedule conform to the usual scheme, as well as 5877 correcting its structure. This means that calls to DES functions 5878 now have to pass a pointer to a des_key_schedule instead of a 5879 plain des_key_schedule (which was actually always a pointer 5880 anyway): E.g., 5881 5882 des_key_schedule ks; 5883 5884 des_set_key_checked(..., &ks); 5885 des_ncbc_encrypt(..., &ks, ...); 5886 5887 (Note that a later change renames 'des_...' into 'DES_...'.) 5888 [Ben Laurie] 5889 5890 *) Initial reduction of linker bloat: the use of some functions, such as 5891 PEM causes large amounts of unused functions to be linked in due to 5892 poor organisation. For example pem_all.c contains every PEM function 5893 which has a knock on effect of linking in large amounts of (unused) 5894 ASN1 code. Grouping together similar functions and splitting unrelated 5895 functions prevents this. 5896 [Steve Henson] 5897 5898 *) Cleanup of EVP macros. 5899 [Ben Laurie] 5900 5901 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 5902 correct _ecb suffix. 5903 [Ben Laurie] 5904 5905 *) Add initial OCSP responder support to ocsp application. The 5906 revocation information is handled using the text based index 5907 use by the ca application. The responder can either handle 5908 requests generated internally, supplied in files (for example 5909 via a CGI script) or using an internal minimal server. 5910 [Steve Henson] 5911 5912 *) Add configuration choices to get zlib compression for TLS. 5913 [Richard Levitte] 5914 5915 *) Changes to Kerberos SSL for RFC 2712 compliance: 5916 1. Implemented real KerberosWrapper, instead of just using 5917 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 5918 2. Implemented optional authenticator field of KerberosWrapper. 5919 5920 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 5921 and authenticator structs; see crypto/krb5/. 5922 5923 Generalized Kerberos calls to support multiple Kerberos libraries. 5924 [Vern Staats <staatsvr@asc.hpc.mil>, 5925 Jeffrey Altman <jaltman@columbia.edu> 5926 via Richard Levitte] 5927 5928 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 5929 already does with RSA. testdsa.h now has 'priv_key/pub_key' 5930 values for each of the key sizes rather than having just 5931 parameters (and 'speed' generating keys each time). 5932 [Geoff Thorpe] 5933 5934 *) Speed up EVP routines. 5935 Before: 5936encrypt 5937type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 5938des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 5939des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 5940des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 5941decrypt 5942des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 5943des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 5944des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 5945 After: 5946encrypt 5947des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 5948decrypt 5949des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 5950 [Ben Laurie] 5951 5952 *) Added the OS2-EMX target. 5953 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 5954 5955 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 5956 to support NCONF routines in extension code. New function CONF_set_nconf() 5957 to allow functions which take an NCONF to also handle the old LHASH 5958 structure: this means that the old CONF compatible routines can be 5959 retained (in particular wrt extensions) without having to duplicate the 5960 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 5961 [Steve Henson] 5962 5963 *) Enhance the general user interface with mechanisms for inner control 5964 and with possibilities to have yes/no kind of prompts. 5965 [Richard Levitte] 5966 5967 *) Change all calls to low level digest routines in the library and 5968 applications to use EVP. Add missing calls to HMAC_cleanup() and 5969 don't assume HMAC_CTX can be copied using memcpy(). 5970 [Verdon Walker <VWalker@novell.com>, Steve Henson] 5971 5972 *) Add the possibility to control engines through control names but with 5973 arbitrary arguments instead of just a string. 5974 Change the key loaders to take a UI_METHOD instead of a callback 5975 function pointer. NOTE: this breaks binary compatibility with earlier 5976 versions of OpenSSL [engine]. 5977 Adapt the nCipher code for these new conditions and add a card insertion 5978 callback. 5979 [Richard Levitte] 5980 5981 *) Enhance the general user interface with mechanisms to better support 5982 dialog box interfaces, application-defined prompts, the possibility 5983 to use defaults (for example default passwords from somewhere else) 5984 and interrupts/cancellations. 5985 [Richard Levitte] 5986 5987 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 5988 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 5989 [Steve Henson] 5990 5991 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 5992 tidy up some unnecessarily weird code in 'sk_new()'). 5993 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 5994 5995 *) Change the key loading routines for ENGINEs to use the same kind 5996 callback (pem_password_cb) as all other routines that need this 5997 kind of callback. 5998 [Richard Levitte] 5999 6000 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 6001 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 6002 than this minimum value is recommended. 6003 [Lutz Jaenicke] 6004 6005 *) New random seeder for OpenVMS, using the system process statistics 6006 that are easily reachable. 6007 [Richard Levitte] 6008 6009 *) Windows apparently can't transparently handle global 6010 variables defined in DLLs. Initialisations such as: 6011 6012 const ASN1_ITEM *it = &ASN1_INTEGER_it; 6013 6014 wont compile. This is used by the any applications that need to 6015 declare their own ASN1 modules. This was fixed by adding the option 6016 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 6017 needed for static libraries under Win32. 6018 [Steve Henson] 6019 6020 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 6021 setting of purpose and trust fields. New X509_STORE trust and 6022 purpose functions and tidy up setting in other SSL functions. 6023 [Steve Henson] 6024 6025 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 6026 structure. These are inherited by X509_STORE_CTX when it is 6027 initialised. This allows various defaults to be set in the 6028 X509_STORE structure (such as flags for CRL checking and custom 6029 purpose or trust settings) for functions which only use X509_STORE_CTX 6030 internally such as S/MIME. 6031 6032 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 6033 trust settings if they are not set in X509_STORE. This allows X509_STORE 6034 purposes and trust (in S/MIME for example) to override any set by default. 6035 6036 Add command line options for CRL checking to smime, s_client and s_server 6037 applications. 6038 [Steve Henson] 6039 6040 *) Initial CRL based revocation checking. If the CRL checking flag(s) 6041 are set then the CRL is looked up in the X509_STORE structure and 6042 its validity and signature checked, then if the certificate is found 6043 in the CRL the verify fails with a revoked error. 6044 6045 Various new CRL related callbacks added to X509_STORE_CTX structure. 6046 6047 Command line options added to 'verify' application to support this. 6048 6049 This needs some additional work, such as being able to handle multiple 6050 CRLs with different times, extension based lookup (rather than just 6051 by subject name) and ultimately more complete V2 CRL extension 6052 handling. 6053 [Steve Henson] 6054 6055 *) Add a general user interface API (crypto/ui/). This is designed 6056 to replace things like des_read_password and friends (backward 6057 compatibility functions using this new API are provided). 6058 The purpose is to remove prompting functions from the DES code 6059 section as well as provide for prompting through dialog boxes in 6060 a window system and the like. 6061 [Richard Levitte] 6062 6063 *) Add "ex_data" support to ENGINE so implementations can add state at a 6064 per-structure level rather than having to store it globally. 6065 [Geoff] 6066 6067 *) Make it possible for ENGINE structures to be copied when retrieved by 6068 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 6069 This causes the "original" ENGINE structure to act like a template, 6070 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 6071 operational state can be localised to each ENGINE structure, despite the 6072 fact they all share the same "methods". New ENGINE structures returned in 6073 this case have no functional references and the return value is the single 6074 structural reference. This matches the single structural reference returned 6075 by ENGINE_by_id() normally, when it is incremented on the pre-existing 6076 ENGINE structure. 6077 [Geoff] 6078 6079 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 6080 needs to match any other type at all we need to manually clear the 6081 tag cache. 6082 [Steve Henson] 6083 6084 *) Changes to the "openssl engine" utility to include; 6085 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 6086 about an ENGINE's available control commands. 6087 - executing control commands from command line arguments using the 6088 '-pre' and '-post' switches. '-post' is only used if '-t' is 6089 specified and the ENGINE is successfully initialised. The syntax for 6090 the individual commands are colon-separated, for example; 6091 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 6092 [Geoff] 6093 6094 *) New dynamic control command support for ENGINEs. ENGINEs can now 6095 declare their own commands (numbers), names (strings), descriptions, 6096 and input types for run-time discovery by calling applications. A 6097 subset of these commands are implicitly classed as "executable" 6098 depending on their input type, and only these can be invoked through 6099 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 6100 can be based on user input, config files, etc). The distinction is 6101 that "executable" commands cannot return anything other than a boolean 6102 result and can only support numeric or string input, whereas some 6103 discoverable commands may only be for direct use through 6104 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 6105 pointers, or other custom uses. The "executable" commands are to 6106 support parameterisations of ENGINE behaviour that can be 6107 unambiguously defined by ENGINEs and used consistently across any 6108 OpenSSL-based application. Commands have been added to all the 6109 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 6110 control over shared-library paths without source code alterations. 6111 [Geoff] 6112 6113 *) Changed all ENGINE implementations to dynamically allocate their 6114 ENGINEs rather than declaring them statically. Apart from this being 6115 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 6116 this also allows the implementations to compile without using the 6117 internal engine_int.h header. 6118 [Geoff] 6119 6120 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 6121 'const' value. Any code that should be able to modify a RAND_METHOD 6122 should already have non-const pointers to it (ie. they should only 6123 modify their own ones). 6124 [Geoff] 6125 6126 *) Made a variety of little tweaks to the ENGINE code. 6127 - "atalla" and "ubsec" string definitions were moved from header files 6128 to C code. "nuron" string definitions were placed in variables 6129 rather than hard-coded - allowing parameterisation of these values 6130 later on via ctrl() commands. 6131 - Removed unused "#if 0"'d code. 6132 - Fixed engine list iteration code so it uses ENGINE_free() to release 6133 structural references. 6134 - Constified the RAND_METHOD element of ENGINE structures. 6135 - Constified various get/set functions as appropriate and added 6136 missing functions (including a catch-all ENGINE_cpy that duplicates 6137 all ENGINE values onto a new ENGINE except reference counts/state). 6138 - Removed NULL parameter checks in get/set functions. Setting a method 6139 or function to NULL is a way of cancelling out a previously set 6140 value. Passing a NULL ENGINE parameter is just plain stupid anyway 6141 and doesn't justify the extra error symbols and code. 6142 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 6143 flags from engine_int.h to engine.h. 6144 - Changed prototypes for ENGINE handler functions (init(), finish(), 6145 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 6146 [Geoff] 6147 6148 *) Implement binary inversion algorithm for BN_mod_inverse in addition 6149 to the algorithm using long division. The binary algorithm can be 6150 used only if the modulus is odd. On 32-bit systems, it is faster 6151 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 6152 roughly 5-15% for 256-bit moduli), so we use it only for moduli 6153 up to 450 bits. In 64-bit environments, the binary algorithm 6154 appears to be advantageous for much longer moduli; here we use it 6155 for moduli up to 2048 bits. 6156 [Bodo Moeller] 6157 6158 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 6159 could not support the combine flag in choice fields. 6160 [Steve Henson] 6161 6162 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 6163 extensions from a certificate request to the certificate. 6164 [Steve Henson] 6165 6166 *) Allow multiple 'certopt' and 'nameopt' options to be separated 6167 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 6168 file: this allows the display of the certificate about to be 6169 signed to be customised, to allow certain fields to be included 6170 or excluded and extension details. The old system didn't display 6171 multicharacter strings properly, omitted fields not in the policy 6172 and couldn't display additional details such as extensions. 6173 [Steve Henson] 6174 6175 *) Function EC_POINTs_mul for multiple scalar multiplication 6176 of an arbitrary number of elliptic curve points 6177 \sum scalars[i]*points[i], 6178 optionally including the generator defined for the EC_GROUP: 6179 scalar*generator + \sum scalars[i]*points[i]. 6180 6181 EC_POINT_mul is a simple wrapper function for the typical case 6182 that the point list has just one item (besides the optional 6183 generator). 6184 [Bodo Moeller] 6185 6186 *) First EC_METHODs for curves over GF(p): 6187 6188 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 6189 operations and provides various method functions that can also 6190 operate with faster implementations of modular arithmetic. 6191 6192 EC_GFp_mont_method() reuses most functions that are part of 6193 EC_GFp_simple_method, but uses Montgomery arithmetic. 6194 6195 [Bodo Moeller; point addition and point doubling 6196 implementation directly derived from source code provided by 6197 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 6198 6199 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 6200 crypto/ec/ec_lib.c): 6201 6202 Curves are EC_GROUP objects (with an optional group generator) 6203 based on EC_METHODs that are built into the library. 6204 6205 Points are EC_POINT objects based on EC_GROUP objects. 6206 6207 Most of the framework would be able to handle curves over arbitrary 6208 finite fields, but as there are no obvious types for fields other 6209 than GF(p), some functions are limited to that for now. 6210 [Bodo Moeller] 6211 6212 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 6213 that the file contains a complete HTTP response. 6214 [Richard Levitte] 6215 6216 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 6217 change the def and num file printf format specifier from "%-40sXXX" 6218 to "%-39s XXX". The latter will always guarantee a space after the 6219 field while the former will cause them to run together if the field 6220 is 40 of more characters long. 6221 [Steve Henson] 6222 6223 *) Constify the cipher and digest 'method' functions and structures 6224 and modify related functions to take constant EVP_MD and EVP_CIPHER 6225 pointers. 6226 [Steve Henson] 6227 6228 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 6229 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 6230 [Bodo Moeller] 6231 6232 *) Modify EVP_Digest*() routines so they now return values. Although the 6233 internal software routines can never fail additional hardware versions 6234 might. 6235 [Steve Henson] 6236 6237 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 6238 6239 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 6240 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 6241 6242 ASN1 error codes 6243 ERR_R_NESTED_ASN1_ERROR 6244 ... 6245 ERR_R_MISSING_ASN1_EOS 6246 were 4 .. 9, conflicting with 6247 ERR_LIB_RSA (= ERR_R_RSA_LIB) 6248 ... 6249 ERR_LIB_PEM (= ERR_R_PEM_LIB). 6250 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 6251 6252 Add new error code 'ERR_R_INTERNAL_ERROR'. 6253 [Bodo Moeller] 6254 6255 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 6256 suffices. 6257 [Bodo Moeller] 6258 6259 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 6260 sets the subject name for a new request or supersedes the 6261 subject name in a given request. Formats that can be parsed are 6262 'CN=Some Name, OU=myOU, C=IT' 6263 and 6264 'CN=Some Name/OU=myOU/C=IT'. 6265 6266 Add options '-batch' and '-verbose' to 'openssl req'. 6267 [Massimiliano Pala <madwolf@hackmasters.net>] 6268 6269 *) Introduce the possibility to access global variables through 6270 functions on platform were that's the best way to handle exporting 6271 global variables in shared libraries. To enable this functionality, 6272 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 6273 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 6274 is normally done by Configure or something similar). 6275 6276 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 6277 in the source file (foo.c) like this: 6278 6279 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 6280 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 6281 6282 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 6283 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 6284 6285 OPENSSL_DECLARE_GLOBAL(int,foo); 6286 #define foo OPENSSL_GLOBAL_REF(foo) 6287 OPENSSL_DECLARE_GLOBAL(double,bar); 6288 #define bar OPENSSL_GLOBAL_REF(bar) 6289 6290 The #defines are very important, and therefore so is including the 6291 header file everywhere where the defined globals are used. 6292 6293 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 6294 of ASN.1 items, but that structure is a bit different. 6295 6296 The largest change is in util/mkdef.pl which has been enhanced with 6297 better and easier to understand logic to choose which symbols should 6298 go into the Windows .def files as well as a number of fixes and code 6299 cleanup (among others, algorithm keywords are now sorted 6300 lexicographically to avoid constant rewrites). 6301 [Richard Levitte] 6302 6303 *) In BN_div() keep a copy of the sign of 'num' before writing the 6304 result to 'rm' because if rm==num the value will be overwritten 6305 and produce the wrong result if 'num' is negative: this caused 6306 problems with BN_mod() and BN_nnmod(). 6307 [Steve Henson] 6308 6309 *) Function OCSP_request_verify(). This checks the signature on an 6310 OCSP request and verifies the signer certificate. The signer 6311 certificate is just checked for a generic purpose and OCSP request 6312 trust settings. 6313 [Steve Henson] 6314 6315 *) Add OCSP_check_validity() function to check the validity of OCSP 6316 responses. OCSP responses are prepared in real time and may only 6317 be a few seconds old. Simply checking that the current time lies 6318 between thisUpdate and nextUpdate max reject otherwise valid responses 6319 caused by either OCSP responder or client clock inaccuracy. Instead 6320 we allow thisUpdate and nextUpdate to fall within a certain period of 6321 the current time. The age of the response can also optionally be 6322 checked. Two new options -validity_period and -status_age added to 6323 ocsp utility. 6324 [Steve Henson] 6325 6326 *) If signature or public key algorithm is unrecognized print out its 6327 OID rather that just UNKNOWN. 6328 [Steve Henson] 6329 6330 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 6331 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 6332 ID to be generated from the issuer certificate alone which can then be 6333 passed to OCSP_id_issuer_cmp(). 6334 [Steve Henson] 6335 6336 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 6337 ASN1 modules to export functions returning ASN1_ITEM pointers 6338 instead of the ASN1_ITEM structures themselves. This adds several 6339 new macros which allow the underlying ASN1 function/structure to 6340 be accessed transparently. As a result code should not use ASN1_ITEM 6341 references directly (such as &X509_it) but instead use the relevant 6342 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 6343 use of the new ASN1 code on platforms where exporting structures 6344 is problematical (for example in shared libraries) but exporting 6345 functions returning pointers to structures is not. 6346 [Steve Henson] 6347 6348 *) Add support for overriding the generation of SSL/TLS session IDs. 6349 These callbacks can be registered either in an SSL_CTX or per SSL. 6350 The purpose of this is to allow applications to control, if they wish, 6351 the arbitrary values chosen for use as session IDs, particularly as it 6352 can be useful for session caching in multiple-server environments. A 6353 command-line switch for testing this (and any client code that wishes 6354 to use such a feature) has been added to "s_server". 6355 [Geoff Thorpe, Lutz Jaenicke] 6356 6357 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 6358 of the form '#if defined(...) || defined(...) || ...' and 6359 '#if !defined(...) && !defined(...) && ...'. This also avoids 6360 the growing number of special cases it was previously handling. 6361 [Richard Levitte] 6362 6363 *) Make all configuration macros available for application by making 6364 sure they are available in opensslconf.h, by giving them names starting 6365 with "OPENSSL_" to avoid conflicts with other packages and by making 6366 sure e_os2.h will cover all platform-specific cases together with 6367 opensslconf.h. 6368 Additionally, it is now possible to define configuration/platform- 6369 specific names (called "system identities"). In the C code, these 6370 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 6371 macro with the name beginning with "OPENSSL_SYS_", which is determined 6372 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 6373 what is available. 6374 [Richard Levitte] 6375 6376 *) New option -set_serial to 'req' and 'x509' this allows the serial 6377 number to use to be specified on the command line. Previously self 6378 signed certificates were hard coded with serial number 0 and the 6379 CA options of 'x509' had to use a serial number in a file which was 6380 auto incremented. 6381 [Steve Henson] 6382 6383 *) New options to 'ca' utility to support V2 CRL entry extensions. 6384 Currently CRL reason, invalidity date and hold instruction are 6385 supported. Add new CRL extensions to V3 code and some new objects. 6386 [Steve Henson] 6387 6388 *) New function EVP_CIPHER_CTX_set_padding() this is used to 6389 disable standard block padding (aka PKCS#5 padding) in the EVP 6390 API, which was previously mandatory. This means that the data is 6391 not padded in any way and so the total length much be a multiple 6392 of the block size, otherwise an error occurs. 6393 [Steve Henson] 6394 6395 *) Initial (incomplete) OCSP SSL support. 6396 [Steve Henson] 6397 6398 *) New function OCSP_parse_url(). This splits up a URL into its host, 6399 port and path components: primarily to parse OCSP URLs. New -url 6400 option to ocsp utility. 6401 [Steve Henson] 6402 6403 *) New nonce behavior. The return value of OCSP_check_nonce() now 6404 reflects the various checks performed. Applications can decide 6405 whether to tolerate certain situations such as an absent nonce 6406 in a response when one was present in a request: the ocsp application 6407 just prints out a warning. New function OCSP_add1_basic_nonce() 6408 this is to allow responders to include a nonce in a response even if 6409 the request is nonce-less. 6410 [Steve Henson] 6411 6412 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 6413 skipped when using openssl x509 multiple times on a single input file, 6414 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 6415 [Bodo Moeller] 6416 6417 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 6418 set string type: to handle setting ASN1_TIME structures. Fix ca 6419 utility to correctly initialize revocation date of CRLs. 6420 [Steve Henson] 6421 6422 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 6423 the clients preferred ciphersuites and rather use its own preferences. 6424 Should help to work around M$ SGC (Server Gated Cryptography) bug in 6425 Internet Explorer by ensuring unchanged hash method during stepup. 6426 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 6427 [Lutz Jaenicke] 6428 6429 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 6430 to aes and add a new 'exist' option to print out symbols that don't 6431 appear to exist. 6432 [Steve Henson] 6433 6434 *) Additional options to ocsp utility to allow flags to be set and 6435 additional certificates supplied. 6436 [Steve Henson] 6437 6438 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 6439 OCSP client a number of certificate to only verify the response 6440 signature against. 6441 [Richard Levitte] 6442 6443 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 6444 handle the new API. Currently only ECB, CBC modes supported. Add new 6445 AES OIDs. 6446 6447 Add TLS AES ciphersuites as described in RFC3268, "Advanced 6448 Encryption Standard (AES) Ciphersuites for Transport Layer 6449 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 6450 not enabled by default and were not part of the "ALL" ciphersuite 6451 alias because they were not yet official; they could be 6452 explicitly requested by specifying the "AESdraft" ciphersuite 6453 group alias. In the final release of OpenSSL 0.9.7, the group 6454 alias is called "AES" and is part of "ALL".) 6455 [Ben Laurie, Steve Henson, Bodo Moeller] 6456 6457 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 6458 request to response. 6459 [Steve Henson] 6460 6461 *) Functions for OCSP responders. OCSP_request_onereq_count(), 6462 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 6463 extract information from a certificate request. OCSP_response_create() 6464 creates a response and optionally adds a basic response structure. 6465 OCSP_basic_add1_status() adds a complete single response to a basic 6466 response and returns the OCSP_SINGLERESP structure just added (to allow 6467 extensions to be included for example). OCSP_basic_add1_cert() adds a 6468 certificate to a basic response and OCSP_basic_sign() signs a basic 6469 response with various flags. New helper functions ASN1_TIME_check() 6470 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 6471 (converts ASN1_TIME to GeneralizedTime). 6472 [Steve Henson] 6473 6474 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 6475 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 6476 structure from a certificate. X509_pubkey_digest() digests the public_key 6477 contents: this is used in various key identifiers. 6478 [Steve Henson] 6479 6480 *) Make sk_sort() tolerate a NULL argument. 6481 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 6482 6483 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 6484 passed by the function are trusted implicitly. If any of them signed the 6485 response then it is assumed to be valid and is not verified. 6486 [Steve Henson] 6487 6488 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 6489 to data. This was previously part of the PKCS7 ASN1 code. This 6490 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 6491 [Steve Henson, reported by Kenneth R. Robinette 6492 <support@securenetterm.com>] 6493 6494 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 6495 routines: without these tracing memory leaks is very painful. 6496 Fix leaks in PKCS12 and PKCS7 routines. 6497 [Steve Henson] 6498 6499 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 6500 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 6501 effectively meant GeneralizedTime would never be used. Now it 6502 is initialised to -1 but X509_time_adj() now has to check the value 6503 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 6504 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 6505 [Steve Henson, reported by Kenneth R. Robinette 6506 <support@securenetterm.com>] 6507 6508 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 6509 result in a zero length in the ASN1_INTEGER structure which was 6510 not consistent with the structure when d2i_ASN1_INTEGER() was used 6511 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 6512 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 6513 where it did not print out a minus for negative ASN1_INTEGER. 6514 [Steve Henson] 6515 6516 *) Add summary printout to ocsp utility. The various functions which 6517 convert status values to strings have been renamed to: 6518 OCSP_response_status_str(), OCSP_cert_status_str() and 6519 OCSP_crl_reason_str() and are no longer static. New options 6520 to verify nonce values and to disable verification. OCSP response 6521 printout format cleaned up. 6522 [Steve Henson] 6523 6524 *) Add additional OCSP certificate checks. These are those specified 6525 in RFC2560. This consists of two separate checks: the CA of the 6526 certificate being checked must either be the OCSP signer certificate 6527 or the issuer of the OCSP signer certificate. In the latter case the 6528 OCSP signer certificate must contain the OCSP signing extended key 6529 usage. This check is performed by attempting to match the OCSP 6530 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 6531 in the OCSP_CERTID structures of the response. 6532 [Steve Henson] 6533 6534 *) Initial OCSP certificate verification added to OCSP_basic_verify() 6535 and related routines. This uses the standard OpenSSL certificate 6536 verify routines to perform initial checks (just CA validity) and 6537 to obtain the certificate chain. Then additional checks will be 6538 performed on the chain. Currently the root CA is checked to see 6539 if it is explicitly trusted for OCSP signing. This is used to set 6540 a root CA as a global signing root: that is any certificate that 6541 chains to that CA is an acceptable OCSP signing certificate. 6542 [Steve Henson] 6543 6544 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 6545 extensions from a separate configuration file. 6546 As when reading extensions from the main configuration file, 6547 the '-extensions ...' option may be used for specifying the 6548 section to use. 6549 [Massimiliano Pala <madwolf@comune.modena.it>] 6550 6551 *) New OCSP utility. Allows OCSP requests to be generated or 6552 read. The request can be sent to a responder and the output 6553 parsed, outputed or printed in text form. Not complete yet: 6554 still needs to check the OCSP response validity. 6555 [Steve Henson] 6556 6557 *) New subcommands for 'openssl ca': 6558 'openssl ca -status <serial>' prints the status of the cert with 6559 the given serial number (according to the index file). 6560 'openssl ca -updatedb' updates the expiry status of certificates 6561 in the index file. 6562 [Massimiliano Pala <madwolf@comune.modena.it>] 6563 6564 *) New '-newreq-nodes' command option to CA.pl. This is like 6565 '-newreq', but calls 'openssl req' with the '-nodes' option 6566 so that the resulting key is not encrypted. 6567 [Damien Miller <djm@mindrot.org>] 6568 6569 *) New configuration for the GNU Hurd. 6570 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 6571 6572 *) Initial code to implement OCSP basic response verify. This 6573 is currently incomplete. Currently just finds the signer's 6574 certificate and verifies the signature on the response. 6575 [Steve Henson] 6576 6577 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 6578 value of OPENSSLDIR. This is available via the new '-d' option 6579 to 'openssl version', and is also included in 'openssl version -a'. 6580 [Bodo Moeller] 6581 6582 *) Allowing defining memory allocation callbacks that will be given 6583 file name and line number information in additional arguments 6584 (a const char* and an int). The basic functionality remains, as 6585 well as the original possibility to just replace malloc(), 6586 realloc() and free() by functions that do not know about these 6587 additional arguments. To register and find out the current 6588 settings for extended allocation functions, the following 6589 functions are provided: 6590 6591 CRYPTO_set_mem_ex_functions 6592 CRYPTO_set_locked_mem_ex_functions 6593 CRYPTO_get_mem_ex_functions 6594 CRYPTO_get_locked_mem_ex_functions 6595 6596 These work the same way as CRYPTO_set_mem_functions and friends. 6597 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 6598 extended allocation function is enabled. 6599 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 6600 a conventional allocation function is enabled. 6601 [Richard Levitte, Bodo Moeller] 6602 6603 *) Finish off removing the remaining LHASH function pointer casts. 6604 There should no longer be any prototype-casting required when using 6605 the LHASH abstraction, and any casts that remain are "bugs". See 6606 the callback types and macros at the head of lhash.h for details 6607 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 6608 [Geoff Thorpe] 6609 6610 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 6611 If /dev/[u]random devices are not available or do not return enough 6612 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 6613 be queried. 6614 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 6615 /etc/entropy will be queried once each in this sequence, quering stops 6616 when enough entropy was collected without querying more sockets. 6617 [Lutz Jaenicke] 6618 6619 *) Change the Unix RAND_poll() variant to be able to poll several 6620 random devices, as specified by DEVRANDOM, until a sufficient amount 6621 of data has been collected. We spend at most 10 ms on each file 6622 (select timeout) and read in non-blocking mode. DEVRANDOM now 6623 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 6624 (previously it was just the string "/dev/urandom"), so on typical 6625 platforms the 10 ms delay will never occur. 6626 Also separate out the Unix variant to its own file, rand_unix.c. 6627 For VMS, there's a currently-empty rand_vms.c. 6628 [Richard Levitte] 6629 6630 *) Move OCSP client related routines to ocsp_cl.c. These 6631 provide utility functions which an application needing 6632 to issue a request to an OCSP responder and analyse the 6633 response will typically need: as opposed to those which an 6634 OCSP responder itself would need which will be added later. 6635 6636 OCSP_request_sign() signs an OCSP request with an API similar 6637 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 6638 response. OCSP_response_get1_basic() extracts basic response 6639 from response. OCSP_resp_find_status(): finds and extracts status 6640 information from an OCSP_CERTID structure (which will be created 6641 when the request structure is built). These are built from lower 6642 level functions which work on OCSP_SINGLERESP structures but 6643 wont normally be used unless the application wishes to examine 6644 extensions in the OCSP response for example. 6645 6646 Replace nonce routines with a pair of functions. 6647 OCSP_request_add1_nonce() adds a nonce value and optionally 6648 generates a random value. OCSP_check_nonce() checks the 6649 validity of the nonce in an OCSP response. 6650 [Steve Henson] 6651 6652 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 6653 This doesn't copy the supplied OCSP_CERTID and avoids the 6654 need to free up the newly created id. Change return type 6655 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 6656 This can then be used to add extensions to the request. 6657 Deleted OCSP_request_new(), since most of its functionality 6658 is now in OCSP_REQUEST_new() (and the case insensitive name 6659 clash) apart from the ability to set the request name which 6660 will be added elsewhere. 6661 [Steve Henson] 6662 6663 *) Update OCSP API. Remove obsolete extensions argument from 6664 various functions. Extensions are now handled using the new 6665 OCSP extension code. New simple OCSP HTTP function which 6666 can be used to send requests and parse the response. 6667 [Steve Henson] 6668 6669 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 6670 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 6671 uses the special reorder version of SET OF to sort the attributes 6672 and reorder them to match the encoded order. This resolves a long 6673 standing problem: a verify on a PKCS7 structure just after signing 6674 it used to fail because the attribute order did not match the 6675 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 6676 it uses the received order. This is necessary to tolerate some broken 6677 software that does not order SET OF. This is handled by encoding 6678 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 6679 to produce the required SET OF. 6680 [Steve Henson] 6681 6682 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 6683 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 6684 files to get correct declarations of the ASN.1 item variables. 6685 [Richard Levitte] 6686 6687 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 6688 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 6689 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 6690 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 6691 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 6692 ASN1_ITEM and no wrapper functions. 6693 [Steve Henson] 6694 6695 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 6696 replace the old function pointer based I/O routines. Change most of 6697 the *_d2i_bio() and *_d2i_fp() functions to use these. 6698 [Steve Henson] 6699 6700 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 6701 lines, recognice more "algorithms" that can be deselected, and make 6702 it complain about algorithm deselection that isn't recognised. 6703 [Richard Levitte] 6704 6705 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 6706 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 6707 to use new functions. Add NO_ASN1_OLD which can be set to remove 6708 some old style ASN1 functions: this can be used to determine if old 6709 code will still work when these eventually go away. 6710 [Steve Henson] 6711 6712 *) New extension functions for OCSP structures, these follow the 6713 same conventions as certificates and CRLs. 6714 [Steve Henson] 6715 6716 *) New function X509V3_add1_i2d(). This automatically encodes and 6717 adds an extension. Its behaviour can be customised with various 6718 flags to append, replace or delete. Various wrappers added for 6719 certifcates and CRLs. 6720 [Steve Henson] 6721 6722 *) Fix to avoid calling the underlying ASN1 print routine when 6723 an extension cannot be parsed. Correct a typo in the 6724 OCSP_SERVICELOC extension. Tidy up print OCSP format. 6725 [Steve Henson] 6726 6727 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 6728 entries for variables. 6729 [Steve Henson] 6730 6731 *) Add functionality to apps/openssl.c for detecting locking 6732 problems: As the program is single-threaded, all we have 6733 to do is register a locking callback using an array for 6734 storing which locks are currently held by the program. 6735 [Bodo Moeller] 6736 6737 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 6738 SSL_get_ex_data_X509_STORE_idx(), which is used in 6739 ssl_verify_cert_chain() and thus can be called at any time 6740 during TLS/SSL handshakes so that thread-safety is essential. 6741 Unfortunately, the ex_data design is not at all suited 6742 for multi-threaded use, so it probably should be abolished. 6743 [Bodo Moeller] 6744 6745 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 6746 [Broadcom, tweaked and integrated by Geoff Thorpe] 6747 6748 *) Move common extension printing code to new function 6749 X509V3_print_extensions(). Reorganise OCSP print routines and 6750 implement some needed OCSP ASN1 functions. Add OCSP extensions. 6751 [Steve Henson] 6752 6753 *) New function X509_signature_print() to remove duplication in some 6754 print routines. 6755 [Steve Henson] 6756 6757 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 6758 set (this was treated exactly the same as SET OF previously). This 6759 is used to reorder the STACK representing the structure to match the 6760 encoding. This will be used to get round a problem where a PKCS7 6761 structure which was signed could not be verified because the STACK 6762 order did not reflect the encoded order. 6763 [Steve Henson] 6764 6765 *) Reimplement the OCSP ASN1 module using the new code. 6766 [Steve Henson] 6767 6768 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 6769 for its ASN1 operations. The old style function pointers still exist 6770 for now but they will eventually go away. 6771 [Steve Henson] 6772 6773 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 6774 completely replaces the old ASN1 functionality with a table driven 6775 encoder and decoder which interprets an ASN1_ITEM structure describing 6776 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 6777 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 6778 has also been converted to the new form. 6779 [Steve Henson] 6780 6781 *) Change BN_mod_exp_recp so that negative moduli are tolerated 6782 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 6783 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 6784 for negative moduli. 6785 [Bodo Moeller] 6786 6787 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 6788 of not touching the result's sign bit. 6789 [Bodo Moeller] 6790 6791 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 6792 set. 6793 [Bodo Moeller] 6794 6795 *) Changed the LHASH code to use prototypes for callbacks, and created 6796 macros to declare and implement thin (optionally static) functions 6797 that provide type-safety and avoid function pointer casting for the 6798 type-specific callbacks. 6799 [Geoff Thorpe] 6800 6801 *) Added Kerberos Cipher Suites to be used with TLS, as written in 6802 RFC 2712. 6803 [Veers Staats <staatsvr@asc.hpc.mil>, 6804 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 6805 6806 *) Reformat the FAQ so the different questions and answers can be divided 6807 in sections depending on the subject. 6808 [Richard Levitte] 6809 6810 *) Have the zlib compression code load ZLIB.DLL dynamically under 6811 Windows. 6812 [Richard Levitte] 6813 6814 *) New function BN_mod_sqrt for computing square roots modulo a prime 6815 (using the probabilistic Tonelli-Shanks algorithm unless 6816 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 6817 be handled deterministically). 6818 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6819 6820 *) Make BN_mod_inverse faster by explicitly handling small quotients 6821 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 6822 512 bits], about 30% for larger ones [1024 or 2048 bits].) 6823 [Bodo Moeller] 6824 6825 *) New function BN_kronecker. 6826 [Bodo Moeller] 6827 6828 *) Fix BN_gcd so that it works on negative inputs; the result is 6829 positive unless both parameters are zero. 6830 Previously something reasonably close to an infinite loop was 6831 possible because numbers could be growing instead of shrinking 6832 in the implementation of Euclid's algorithm. 6833 [Bodo Moeller] 6834 6835 *) Fix BN_is_word() and BN_is_one() macros to take into account the 6836 sign of the number in question. 6837 6838 Fix BN_is_word(a,w) to work correctly for w == 0. 6839 6840 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 6841 because its test if the absolute value of 'a' equals 'w'. 6842 Note that BN_abs_is_word does *not* handle w == 0 reliably; 6843 it exists mostly for use in the implementations of BN_is_zero(), 6844 BN_is_one(), and BN_is_word(). 6845 [Bodo Moeller] 6846 6847 *) New function BN_swap. 6848 [Bodo Moeller] 6849 6850 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 6851 the exponentiation functions are more likely to produce reasonable 6852 results on negative inputs. 6853 [Bodo Moeller] 6854 6855 *) Change BN_mod_mul so that the result is always non-negative. 6856 Previously, it could be negative if one of the factors was negative; 6857 I don't think anyone really wanted that behaviour. 6858 [Bodo Moeller] 6859 6860 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 6861 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 6862 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 6863 and add new functions: 6864 6865 BN_nnmod 6866 BN_mod_sqr 6867 BN_mod_add 6868 BN_mod_add_quick 6869 BN_mod_sub 6870 BN_mod_sub_quick 6871 BN_mod_lshift1 6872 BN_mod_lshift1_quick 6873 BN_mod_lshift 6874 BN_mod_lshift_quick 6875 6876 These functions always generate non-negative results. 6877 6878 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 6879 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 6880 6881 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 6882 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 6883 be reduced modulo m. 6884 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6885 6886#if 0 6887 The following entry accidentily appeared in the CHANGES file 6888 distributed with OpenSSL 0.9.7. The modifications described in 6889 it do *not* apply to OpenSSL 0.9.7. 6890 6891 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 6892 was actually never needed) and in BN_mul(). The removal in BN_mul() 6893 required a small change in bn_mul_part_recursive() and the addition 6894 of the functions bn_cmp_part_words(), bn_sub_part_words() and 6895 bn_add_part_words(), which do the same thing as bn_cmp_words(), 6896 bn_sub_words() and bn_add_words() except they take arrays with 6897 differing sizes. 6898 [Richard Levitte] 6899#endif 6900 6901 *) In 'openssl passwd', verify passwords read from the terminal 6902 unless the '-salt' option is used (which usually means that 6903 verification would just waste user's time since the resulting 6904 hash is going to be compared with some given password hash) 6905 or the new '-noverify' option is used. 6906 6907 This is an incompatible change, but it does not affect 6908 non-interactive use of 'openssl passwd' (passwords on the command 6909 line, '-stdin' option, '-in ...' option) and thus should not 6910 cause any problems. 6911 [Bodo Moeller] 6912 6913 *) Remove all references to RSAref, since there's no more need for it. 6914 [Richard Levitte] 6915 6916 *) Make DSO load along a path given through an environment variable 6917 (SHLIB_PATH) with shl_load(). 6918 [Richard Levitte] 6919 6920 *) Constify the ENGINE code as a result of BIGNUM constification. 6921 Also constify the RSA code and most things related to it. In a 6922 few places, most notable in the depth of the ASN.1 code, ugly 6923 casts back to non-const were required (to be solved at a later 6924 time) 6925 [Richard Levitte] 6926 6927 *) Make it so the openssl application has all engines loaded by default. 6928 [Richard Levitte] 6929 6930 *) Constify the BIGNUM routines a little more. 6931 [Richard Levitte] 6932 6933 *) Add the following functions: 6934 6935 ENGINE_load_cswift() 6936 ENGINE_load_chil() 6937 ENGINE_load_atalla() 6938 ENGINE_load_nuron() 6939 ENGINE_load_builtin_engines() 6940 6941 That way, an application can itself choose if external engines that 6942 are built-in in OpenSSL shall ever be used or not. The benefit is 6943 that applications won't have to be linked with libdl or other dso 6944 libraries unless it's really needed. 6945 6946 Changed 'openssl engine' to load all engines on demand. 6947 Changed the engine header files to avoid the duplication of some 6948 declarations (they differed!). 6949 [Richard Levitte] 6950 6951 *) 'openssl engine' can now list capabilities. 6952 [Richard Levitte] 6953 6954 *) Better error reporting in 'openssl engine'. 6955 [Richard Levitte] 6956 6957 *) Never call load_dh_param(NULL) in s_server. 6958 [Bodo Moeller] 6959 6960 *) Add engine application. It can currently list engines by name and 6961 identity, and test if they are actually available. 6962 [Richard Levitte] 6963 6964 *) Improve RPM specification file by forcing symbolic linking and making 6965 sure the installed documentation is also owned by root.root. 6966 [Damien Miller <djm@mindrot.org>] 6967 6968 *) Give the OpenSSL applications more possibilities to make use of 6969 keys (public as well as private) handled by engines. 6970 [Richard Levitte] 6971 6972 *) Add OCSP code that comes from CertCo. 6973 [Richard Levitte] 6974 6975 *) Add VMS support for the Rijndael code. 6976 [Richard Levitte] 6977 6978 *) Added untested support for Nuron crypto accelerator. 6979 [Ben Laurie] 6980 6981 *) Add support for external cryptographic devices. This code was 6982 previously distributed separately as the "engine" branch. 6983 [Geoff Thorpe, Richard Levitte] 6984 6985 *) Rework the filename-translation in the DSO code. It is now possible to 6986 have far greater control over how a "name" is turned into a filename 6987 depending on the operating environment and any oddities about the 6988 different shared library filenames on each system. 6989 [Geoff Thorpe] 6990 6991 *) Support threads on FreeBSD-elf in Configure. 6992 [Richard Levitte] 6993 6994 *) Fix for SHA1 assembly problem with MASM: it produces 6995 warnings about corrupt line number information when assembling 6996 with debugging information. This is caused by the overlapping 6997 of two sections. 6998 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 6999 7000 *) NCONF changes. 7001 NCONF_get_number() has no error checking at all. As a replacement, 7002 NCONF_get_number_e() is defined (_e for "error checking") and is 7003 promoted strongly. The old NCONF_get_number is kept around for 7004 binary backward compatibility. 7005 Make it possible for methods to load from something other than a BIO, 7006 by providing a function pointer that is given a name instead of a BIO. 7007 For example, this could be used to load configuration data from an 7008 LDAP server. 7009 [Richard Levitte] 7010 7011 *) Fix for non blocking accept BIOs. Added new I/O special reason 7012 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 7013 with non blocking I/O was not possible because no retry code was 7014 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 7015 this case. 7016 [Steve Henson] 7017 7018 *) Added the beginnings of Rijndael support. 7019 [Ben Laurie] 7020 7021 *) Fix for bug in DirectoryString mask setting. Add support for 7022 X509_NAME_print_ex() in 'req' and X509_print_ex() function 7023 to allow certificate printing to more controllable, additional 7024 'certopt' option to 'x509' to allow new printing options to be 7025 set. 7026 [Steve Henson] 7027 7028 *) Clean old EAY MD5 hack from e_os.h. 7029 [Richard Levitte] 7030 7031 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 7032 7033 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 7034 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 7035 [Joe Orton, Steve Henson] 7036 7037 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 7038 7039 *) Fix additional bug revealed by the NISCC test suite: 7040 7041 Stop bug triggering large recursion when presented with 7042 certain ASN.1 tags (CVE-2003-0851) 7043 [Steve Henson] 7044 7045 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 7046 7047 *) Fix various bugs revealed by running the NISCC test suite: 7048 7049 Stop out of bounds reads in the ASN1 code when presented with 7050 invalid tags (CVE-2003-0543 and CVE-2003-0544). 7051 7052 If verify callback ignores invalid public key errors don't try to check 7053 certificate signature with the NULL public key. 7054 7055 [Steve Henson] 7056 7057 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 7058 if the server requested one: as stated in TLS 1.0 and SSL 3.0 7059 specifications. 7060 [Steve Henson] 7061 7062 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 7063 extra data after the compression methods not only for TLS 1.0 7064 but also for SSL 3.0 (as required by the specification). 7065 [Bodo Moeller; problem pointed out by Matthias Loepfe] 7066 7067 *) Change X509_certificate_type() to mark the key as exported/exportable 7068 when it's 512 *bits* long, not 512 bytes. 7069 [Richard Levitte] 7070 7071 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 7072 7073 *) Countermeasure against the Klima-Pokorny-Rosa extension of 7074 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 7075 a protocol version number mismatch like a decryption error 7076 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 7077 [Bodo Moeller] 7078 7079 *) Turn on RSA blinding by default in the default implementation 7080 to avoid a timing attack. Applications that don't want it can call 7081 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 7082 They would be ill-advised to do so in most cases. 7083 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 7084 7085 *) Change RSA blinding code so that it works when the PRNG is not 7086 seeded (in this case, the secret RSA exponent is abused as 7087 an unpredictable seed -- if it is not unpredictable, there 7088 is no point in blinding anyway). Make RSA blinding thread-safe 7089 by remembering the creator's thread ID in rsa->blinding and 7090 having all other threads use local one-time blinding factors 7091 (this requires more computation than sharing rsa->blinding, but 7092 avoids excessive locking; and if an RSA object is not shared 7093 between threads, blinding will still be very fast). 7094 [Bodo Moeller] 7095 7096 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 7097 7098 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 7099 via timing by performing a MAC computation even if incorrrect 7100 block cipher padding has been found. This is a countermeasure 7101 against active attacks where the attacker has to distinguish 7102 between bad padding and a MAC verification error. (CVE-2003-0078) 7103 7104 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 7105 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 7106 Martin Vuagnoux (EPFL, Ilion)] 7107 7108 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 7109 7110 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 7111 memory from it's contents. This is done with a counter that will 7112 place alternating values in each byte. This can be used to solve 7113 two issues: 1) the removal of calls to memset() by highly optimizing 7114 compilers, and 2) cleansing with other values than 0, since those can 7115 be read through on certain media, for example a swap space on disk. 7116 [Geoff Thorpe] 7117 7118 *) Bugfix: client side session caching did not work with external caching, 7119 because the session->cipher setting was not restored when reloading 7120 from the external cache. This problem was masked, when 7121 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 7122 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 7123 [Lutz Jaenicke] 7124 7125 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 7126 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 7127 [Zeev Lieber <zeev-l@yahoo.com>] 7128 7129 *) Undo an undocumented change introduced in 0.9.6e which caused 7130 repeated calls to OpenSSL_add_all_ciphers() and 7131 OpenSSL_add_all_digests() to be ignored, even after calling 7132 EVP_cleanup(). 7133 [Richard Levitte] 7134 7135 *) Change the default configuration reader to deal with last line not 7136 being properly terminated. 7137 [Richard Levitte] 7138 7139 *) Change X509_NAME_cmp() so it applies the special rules on handling 7140 DN values that are of type PrintableString, as well as RDNs of type 7141 emailAddress where the value has the type ia5String. 7142 [stefank@valicert.com via Richard Levitte] 7143 7144 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 7145 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 7146 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 7147 the bitwise-OR of the two for use by the majority of applications 7148 wanting this behaviour, and update the docs. The documented 7149 behaviour and actual behaviour were inconsistent and had been 7150 changing anyway, so this is more a bug-fix than a behavioural 7151 change. 7152 [Geoff Thorpe, diagnosed by Nadav Har'El] 7153 7154 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 7155 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 7156 [Bodo Moeller] 7157 7158 *) Fix initialization code race conditions in 7159 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 7160 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 7161 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 7162 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 7163 ssl2_get_cipher_by_char(), 7164 ssl3_get_cipher_by_char(). 7165 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 7166 7167 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 7168 the cached sessions are flushed, as the remove_cb() might use ex_data 7169 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 7170 (see [openssl.org #212]). 7171 [Geoff Thorpe, Lutz Jaenicke] 7172 7173 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 7174 length, instead of the encoding length to d2i_ASN1_OBJECT. 7175 [Steve Henson] 7176 7177 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 7178 7179 *) [In 0.9.6g-engine release:] 7180 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 7181 [Lynn Gazis <lgazis@rainbow.com>] 7182 7183 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 7184 7185 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 7186 and get fix the header length calculation. 7187 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 7188 Alon Kantor <alonk@checkpoint.com> (and others), 7189 Steve Henson] 7190 7191 *) Use proper error handling instead of 'assertions' in buffer 7192 overflow checks added in 0.9.6e. This prevents DoS (the 7193 assertions could call abort()). 7194 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 7195 7196 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 7197 7198 *) Add various sanity checks to asn1_get_length() to reject 7199 the ASN1 length bytes if they exceed sizeof(long), will appear 7200 negative or the content length exceeds the length of the 7201 supplied buffer. 7202 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7203 7204 *) Fix cipher selection routines: ciphers without encryption had no flags 7205 for the cipher strength set and where therefore not handled correctly 7206 by the selection routines (PR #130). 7207 [Lutz Jaenicke] 7208 7209 *) Fix EVP_dsa_sha macro. 7210 [Nils Larsch] 7211 7212 *) New option 7213 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 7214 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 7215 that was added in OpenSSL 0.9.6d. 7216 7217 As the countermeasure turned out to be incompatible with some 7218 broken SSL implementations, the new option is part of SSL_OP_ALL. 7219 SSL_OP_ALL is usually employed when compatibility with weird SSL 7220 implementations is desired (e.g. '-bugs' option to 's_client' and 7221 's_server'), so the new option is automatically set in many 7222 applications. 7223 [Bodo Moeller] 7224 7225 *) Changes in security patch: 7226 7227 Changes marked "(CHATS)" were sponsored by the Defense Advanced 7228 Research Projects Agency (DARPA) and Air Force Research Laboratory, 7229 Air Force Materiel Command, USAF, under agreement number 7230 F30602-01-2-0537. 7231 7232 *) Add various sanity checks to asn1_get_length() to reject 7233 the ASN1 length bytes if they exceed sizeof(long), will appear 7234 negative or the content length exceeds the length of the 7235 supplied buffer. (CVE-2002-0659) 7236 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7237 7238 *) Assertions for various potential buffer overflows, not known to 7239 happen in practice. 7240 [Ben Laurie (CHATS)] 7241 7242 *) Various temporary buffers to hold ASCII versions of integers were 7243 too small for 64 bit platforms. (CVE-2002-0655) 7244 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 7245 7246 *) Remote buffer overflow in SSL3 protocol - an attacker could 7247 supply an oversized session ID to a client. (CVE-2002-0656) 7248 [Ben Laurie (CHATS)] 7249 7250 *) Remote buffer overflow in SSL2 protocol - an attacker could 7251 supply an oversized client master key. (CVE-2002-0656) 7252 [Ben Laurie (CHATS)] 7253 7254 Changes between 0.9.6c and 0.9.6d [9 May 2002] 7255 7256 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 7257 encoded as NULL) with id-dsa-with-sha1. 7258 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 7259 7260 *) Check various X509_...() return values in apps/req.c. 7261 [Nils Larsch <nla@trustcenter.de>] 7262 7263 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 7264 an end-of-file condition would erronously be flagged, when the CRLF 7265 was just at the end of a processed block. The bug was discovered when 7266 processing data through a buffering memory BIO handing the data to a 7267 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 7268 <ptsekov@syntrex.com> and Nedelcho Stanev. 7269 [Lutz Jaenicke] 7270 7271 *) Implement a countermeasure against a vulnerability recently found 7272 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 7273 before application data chunks to avoid the use of known IVs 7274 with data potentially chosen by the attacker. 7275 [Bodo Moeller] 7276 7277 *) Fix length checks in ssl3_get_client_hello(). 7278 [Bodo Moeller] 7279 7280 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 7281 to prevent ssl3_read_internal() from incorrectly assuming that 7282 ssl3_read_bytes() found application data while handshake 7283 processing was enabled when in fact s->s3->in_read_app_data was 7284 merely automatically cleared during the initial handshake. 7285 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 7286 7287 *) Fix object definitions for Private and Enterprise: they were not 7288 recognized in their shortname (=lowercase) representation. Extend 7289 obj_dat.pl to issue an error when using undefined keywords instead 7290 of silently ignoring the problem (Svenning Sorensen 7291 <sss@sss.dnsalias.net>). 7292 [Lutz Jaenicke] 7293 7294 *) Fix DH_generate_parameters() so that it works for 'non-standard' 7295 generators, i.e. generators other than 2 and 5. (Previously, the 7296 code did not properly initialise the 'add' and 'rem' values to 7297 BN_generate_prime().) 7298 7299 In the new general case, we do not insist that 'generator' is 7300 actually a primitive root: This requirement is rather pointless; 7301 a generator of the order-q subgroup is just as good, if not 7302 better. 7303 [Bodo Moeller] 7304 7305 *) Map new X509 verification errors to alerts. Discovered and submitted by 7306 Tom Wu <tom@arcot.com>. 7307 [Lutz Jaenicke] 7308 7309 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 7310 returning non-zero before the data has been completely received 7311 when using non-blocking I/O. 7312 [Bodo Moeller; problem pointed out by John Hughes] 7313 7314 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 7315 [Ben Laurie, Lutz Jaenicke] 7316 7317 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 7318 Yoram Zahavi <YoramZ@gilian.com>). 7319 [Lutz Jaenicke] 7320 7321 *) Add information about CygWin 1.3 and on, and preserve proper 7322 configuration for the versions before that. 7323 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 7324 7325 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 7326 check whether we deal with a copy of a session and do not delete from 7327 the cache in this case. Problem reported by "Izhar Shoshani Levi" 7328 <izhar@checkpoint.com>. 7329 [Lutz Jaenicke] 7330 7331 *) Do not store session data into the internal session cache, if it 7332 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 7333 flag is set). Proposed by Aslam <aslam@funk.com>. 7334 [Lutz Jaenicke] 7335 7336 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 7337 value is 0. 7338 [Richard Levitte] 7339 7340 *) [In 0.9.6d-engine release:] 7341 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 7342 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 7343 7344 *) Add the configuration target linux-s390x. 7345 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 7346 7347 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 7348 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 7349 variable as an indication that a ClientHello message has been 7350 received. As the flag value will be lost between multiple 7351 invocations of ssl3_accept when using non-blocking I/O, the 7352 function may not be aware that a handshake has actually taken 7353 place, thus preventing a new session from being added to the 7354 session cache. 7355 7356 To avoid this problem, we now set s->new_session to 2 instead of 7357 using a local variable. 7358 [Lutz Jaenicke, Bodo Moeller] 7359 7360 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 7361 if the SSL_R_LENGTH_MISMATCH error is detected. 7362 [Geoff Thorpe, Bodo Moeller] 7363 7364 *) New 'shared_ldflag' column in Configure platform table. 7365 [Richard Levitte] 7366 7367 *) Fix EVP_CIPHER_mode macro. 7368 ["Dan S. Camper" <dan@bti.net>] 7369 7370 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 7371 type, we must throw them away by setting rr->length to 0. 7372 [D P Chang <dpc@qualys.com>] 7373 7374 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 7375 7376 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 7377 <Dominikus.Scherkl@biodata.com>. (The previous implementation 7378 worked incorrectly for those cases where range = 10..._2 and 7379 3*range is two bits longer than range.) 7380 [Bodo Moeller] 7381 7382 *) Only add signing time to PKCS7 structures if it is not already 7383 present. 7384 [Steve Henson] 7385 7386 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 7387 OBJ_ld_ce should be OBJ_id_ce. 7388 Also some ip-pda OIDs in crypto/objects/objects.txt were 7389 incorrect (cf. RFC 3039). 7390 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 7391 7392 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 7393 returns early because it has nothing to do. 7394 [Andy Schneider <andy.schneider@bjss.co.uk>] 7395 7396 *) [In 0.9.6c-engine release:] 7397 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 7398 [Andy Schneider <andy.schneider@bjss.co.uk>] 7399 7400 *) [In 0.9.6c-engine release:] 7401 Add support for Cryptographic Appliance's keyserver technology. 7402 (Use engine 'keyclient') 7403 [Cryptographic Appliances and Geoff Thorpe] 7404 7405 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 7406 is called via tools/c89.sh because arguments have to be 7407 rearranged (all '-L' options must appear before the first object 7408 modules). 7409 [Richard Shapiro <rshapiro@abinitio.com>] 7410 7411 *) [In 0.9.6c-engine release:] 7412 Add support for Broadcom crypto accelerator cards, backported 7413 from 0.9.7. 7414 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 7415 7416 *) [In 0.9.6c-engine release:] 7417 Add support for SureWare crypto accelerator cards from 7418 Baltimore Technologies. (Use engine 'sureware') 7419 [Baltimore Technologies and Mark Cox] 7420 7421 *) [In 0.9.6c-engine release:] 7422 Add support for crypto accelerator cards from Accelerated 7423 Encryption Processing, www.aep.ie. (Use engine 'aep') 7424 [AEP Inc. and Mark Cox] 7425 7426 *) Add a configuration entry for gcc on UnixWare. 7427 [Gary Benson <gbenson@redhat.com>] 7428 7429 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 7430 messages are stored in a single piece (fixed-length part and 7431 variable-length part combined) and fix various bugs found on the way. 7432 [Bodo Moeller] 7433 7434 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 7435 instead. BIO_gethostbyname() does not know what timeouts are 7436 appropriate, so entries would stay in cache even when they have 7437 become invalid. 7438 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 7439 7440 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 7441 faced with a pathologically small ClientHello fragment that does 7442 not contain client_version: Instead of aborting with an error, 7443 simply choose the highest available protocol version (i.e., 7444 TLS 1.0 unless it is disabled). In practice, ClientHello 7445 messages are never sent like this, but this change gives us 7446 strictly correct behaviour at least for TLS. 7447 [Bodo Moeller] 7448 7449 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 7450 never resets s->method to s->ctx->method when called from within 7451 one of the SSL handshake functions. 7452 [Bodo Moeller; problem pointed out by Niko Baric] 7453 7454 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 7455 (sent using the client's version number) if client_version is 7456 smaller than the protocol version in use. Also change 7457 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 7458 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 7459 the client will at least see that alert. 7460 [Bodo Moeller] 7461 7462 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 7463 correctly. 7464 [Bodo Moeller] 7465 7466 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 7467 client receives HelloRequest while in a handshake. 7468 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 7469 7470 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 7471 should end in 'break', not 'goto end' which circuments various 7472 cleanups done in state SSL_ST_OK. But session related stuff 7473 must be disabled for SSL_ST_OK in the case that we just sent a 7474 HelloRequest. 7475 7476 Also avoid some overhead by not calling ssl_init_wbio_buffer() 7477 before just sending a HelloRequest. 7478 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 7479 7480 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 7481 reveal whether illegal block cipher padding was found or a MAC 7482 verification error occured. (Neither SSLerr() codes nor alerts 7483 are directly visible to potential attackers, but the information 7484 may leak via logfiles.) 7485 7486 Similar changes are not required for the SSL 2.0 implementation 7487 because the number of padding bytes is sent in clear for SSL 2.0, 7488 and the extra bytes are just ignored. However ssl/s2_pkt.c 7489 failed to verify that the purported number of padding bytes is in 7490 the legal range. 7491 [Bodo Moeller] 7492 7493 *) Add OpenUNIX-8 support including shared libraries 7494 (Boyd Lynn Gerber <gerberb@zenez.com>). 7495 [Lutz Jaenicke] 7496 7497 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 7498 'wristwatch attack' using huge encoding parameters (cf. 7499 James H. Manger's CRYPTO 2001 paper). Note that the 7500 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 7501 encoding parameters and hence was not vulnerable. 7502 [Bodo Moeller] 7503 7504 *) BN_sqr() bug fix. 7505 [Ulf M��ller, reported by Jim Ellis <jim.ellis@cavium.com>] 7506 7507 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 7508 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 7509 followed by modular reduction. 7510 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 7511 7512 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 7513 equivalent based on BN_pseudo_rand() instead of BN_rand(). 7514 [Bodo Moeller] 7515 7516 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 7517 This function was broken, as the check for a new client hello message 7518 to handle SGC did not allow these large messages. 7519 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 7520 [Lutz Jaenicke] 7521 7522 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 7523 [Lutz Jaenicke] 7524 7525 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 7526 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 7527 [Lutz Jaenicke] 7528 7529 *) Rework the configuration and shared library support for Tru64 Unix. 7530 The configuration part makes use of modern compiler features and 7531 still retains old compiler behavior for those that run older versions 7532 of the OS. The shared library support part includes a variant that 7533 uses the RPATH feature, and is available through the special 7534 configuration target "alpha-cc-rpath", which will never be selected 7535 automatically. 7536 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 7537 7538 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 7539 with the same message size as in ssl3_get_certificate_request(). 7540 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 7541 messages might inadvertently be reject as too long. 7542 [Petr Lampa <lampa@fee.vutbr.cz>] 7543 7544 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 7545 [Andy Polyakov] 7546 7547 *) Modified SSL library such that the verify_callback that has been set 7548 specificly for an SSL object with SSL_set_verify() is actually being 7549 used. Before the change, a verify_callback set with this function was 7550 ignored and the verify_callback() set in the SSL_CTX at the time of 7551 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 7552 to allow the necessary settings. 7553 [Lutz Jaenicke] 7554 7555 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 7556 explicitly to NULL, as at least on Solaris 8 this seems not always to be 7557 done automatically (in contradiction to the requirements of the C 7558 standard). This made problems when used from OpenSSH. 7559 [Lutz Jaenicke] 7560 7561 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 7562 dh->length and always used 7563 7564 BN_rand_range(priv_key, dh->p). 7565 7566 BN_rand_range() is not necessary for Diffie-Hellman, and this 7567 specific range makes Diffie-Hellman unnecessarily inefficient if 7568 dh->length (recommended exponent length) is much smaller than the 7569 length of dh->p. We could use BN_rand_range() if the order of 7570 the subgroup was stored in the DH structure, but we only have 7571 dh->length. 7572 7573 So switch back to 7574 7575 BN_rand(priv_key, l, ...) 7576 7577 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 7578 otherwise. 7579 [Bodo Moeller] 7580 7581 *) In 7582 7583 RSA_eay_public_encrypt 7584 RSA_eay_private_decrypt 7585 RSA_eay_private_encrypt (signing) 7586 RSA_eay_public_decrypt (signature verification) 7587 7588 (default implementations for RSA_public_encrypt, 7589 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 7590 always reject numbers >= n. 7591 [Bodo Moeller] 7592 7593 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 7594 to synchronize access to 'locking_thread'. This is necessary on 7595 systems where access to 'locking_thread' (an 'unsigned long' 7596 variable) is not atomic. 7597 [Bodo Moeller] 7598 7599 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 7600 *before* setting the 'crypto_lock_rand' flag. The previous code had 7601 a race condition if 0 is a valid thread ID. 7602 [Travis Vitek <vitek@roguewave.com>] 7603 7604 *) Add support for shared libraries under Irix. 7605 [Albert Chin-A-Young <china@thewrittenword.com>] 7606 7607 *) Add configuration option to build on Linux on both big-endian and 7608 little-endian MIPS. 7609 [Ralf Baechle <ralf@uni-koblenz.de>] 7610 7611 *) Add the possibility to create shared libraries on HP-UX. 7612 [Richard Levitte] 7613 7614 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 7615 7616 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 7617 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 7618 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 7619 PRNG state recovery was possible based on the output of 7620 one PRNG request appropriately sized to gain knowledge on 7621 'md' followed by enough consecutive 1-byte PRNG requests 7622 to traverse all of 'state'. 7623 7624 1. When updating 'md_local' (the current thread's copy of 'md') 7625 during PRNG output generation, hash all of the previous 7626 'md_local' value, not just the half used for PRNG output. 7627 7628 2. Make the number of bytes from 'state' included into the hash 7629 independent from the number of PRNG bytes requested. 7630 7631 The first measure alone would be sufficient to avoid 7632 Markku-Juhani's attack. (Actually it had never occurred 7633 to me that the half of 'md_local' used for chaining was the 7634 half from which PRNG output bytes were taken -- I had always 7635 assumed that the secret half would be used.) The second 7636 measure makes sure that additional data from 'state' is never 7637 mixed into 'md_local' in small portions; this heuristically 7638 further strengthens the PRNG. 7639 [Bodo Moeller] 7640 7641 *) Fix crypto/bn/asm/mips3.s. 7642 [Andy Polyakov] 7643 7644 *) When only the key is given to "enc", the IV is undefined. Print out 7645 an error message in this case. 7646 [Lutz Jaenicke] 7647 7648 *) Handle special case when X509_NAME is empty in X509 printing routines. 7649 [Steve Henson] 7650 7651 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 7652 positive and less than q. 7653 [Bodo Moeller] 7654 7655 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 7656 used: it isn't thread safe and the add_lock_callback should handle 7657 that itself. 7658 [Paul Rose <Paul.Rose@bridge.com>] 7659 7660 *) Verify that incoming data obeys the block size in 7661 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 7662 [Bodo Moeller] 7663 7664 *) Fix OAEP check. 7665 [Ulf M��ller, Bodo M��ller] 7666 7667 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 7668 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 7669 when fixing the server behaviour for backwards-compatible 'client 7670 hello' messages. (Note that the attack is impractical against 7671 SSL 3.0 and TLS 1.0 anyway because length and version checking 7672 means that the probability of guessing a valid ciphertext is 7673 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 7674 paper.) 7675 7676 Before 0.9.5, the countermeasure (hide the error by generating a 7677 random 'decryption result') did not work properly because 7678 ERR_clear_error() was missing, meaning that SSL_get_error() would 7679 detect the supposedly ignored error. 7680 7681 Both problems are now fixed. 7682 [Bodo Moeller] 7683 7684 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 7685 (previously it was 1024). 7686 [Bodo Moeller] 7687 7688 *) Fix for compatibility mode trust settings: ignore trust settings 7689 unless some valid trust or reject settings are present. 7690 [Steve Henson] 7691 7692 *) Fix for blowfish EVP: its a variable length cipher. 7693 [Steve Henson] 7694 7695 *) Fix various bugs related to DSA S/MIME verification. Handle missing 7696 parameters in DSA public key structures and return an error in the 7697 DSA routines if parameters are absent. 7698 [Steve Henson] 7699 7700 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 7701 in the current directory if neither $RANDFILE nor $HOME was set. 7702 RAND_file_name() in 0.9.6a returned NULL in this case. This has 7703 caused some confusion to Windows users who haven't defined $HOME. 7704 Thus RAND_file_name() is changed again: e_os.h can define a 7705 DEFAULT_HOME, which will be used if $HOME is not set. 7706 For Windows, we use "C:"; on other platforms, we still require 7707 environment variables. 7708 7709 *) Move 'if (!initialized) RAND_poll()' into regions protected by 7710 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 7711 having multiple threads call RAND_poll() concurrently. 7712 [Bodo Moeller] 7713 7714 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 7715 combination of a flag and a thread ID variable. 7716 Otherwise while one thread is in ssleay_rand_bytes (which sets the 7717 flag), *other* threads can enter ssleay_add_bytes without obeying 7718 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 7719 that they do not hold after the first thread unsets add_do_not_lock). 7720 [Bodo Moeller] 7721 7722 *) Change bctest again: '-x' expressions are not available in all 7723 versions of 'test'. 7724 [Bodo Moeller] 7725 7726 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 7727 7728 *) Fix a couple of memory leaks in PKCS7_dataDecode() 7729 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 7730 7731 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 7732 the default extension for executables, if any. Also, make the perl 7733 scripts that use symlink() to test if it really exists and use "cp" 7734 if it doesn't. All this made OpenSSL compilable and installable in 7735 CygWin. 7736 [Richard Levitte] 7737 7738 *) Fix for asn1_GetSequence() for indefinite length constructed data. 7739 If SEQUENCE is length is indefinite just set c->slen to the total 7740 amount of data available. 7741 [Steve Henson, reported by shige@FreeBSD.org] 7742 [This change does not apply to 0.9.7.] 7743 7744 *) Change bctest to avoid here-documents inside command substitution 7745 (workaround for FreeBSD /bin/sh bug). 7746 For compatibility with Ultrix, avoid shell functions (introduced 7747 in the bctest version that searches along $PATH). 7748 [Bodo Moeller] 7749 7750 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 7751 with des_encrypt() defined on some operating systems, like Solaris 7752 and UnixWare. 7753 [Richard Levitte] 7754 7755 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 7756 On the Importance of Eliminating Errors in Cryptographic 7757 Computations, J. Cryptology 14 (2001) 2, 101-119, 7758 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 7759 [Ulf Moeller] 7760 7761 *) MIPS assembler BIGNUM division bug fix. 7762 [Andy Polyakov] 7763 7764 *) Disabled incorrect Alpha assembler code. 7765 [Richard Levitte] 7766 7767 *) Fix PKCS#7 decode routines so they correctly update the length 7768 after reading an EOC for the EXPLICIT tag. 7769 [Steve Henson] 7770 [This change does not apply to 0.9.7.] 7771 7772 *) Fix bug in PKCS#12 key generation routines. This was triggered 7773 if a 3DES key was generated with a 0 initial byte. Include 7774 PKCS12_BROKEN_KEYGEN compilation option to retain the old 7775 (but broken) behaviour. 7776 [Steve Henson] 7777 7778 *) Enhance bctest to search for a working bc along $PATH and print 7779 it when found. 7780 [Tim Rice <tim@multitalents.net> via Richard Levitte] 7781 7782 *) Fix memory leaks in err.c: free err_data string if necessary; 7783 don't write to the wrong index in ERR_set_error_data. 7784 [Bodo Moeller] 7785 7786 *) Implement ssl23_peek (analogous to ssl23_read), which previously 7787 did not exist. 7788 [Bodo Moeller] 7789 7790 *) Replace rdtsc with _emit statements for VC++ version 5. 7791 [Jeremy Cooper <jeremy@baymoo.org>] 7792 7793 *) Make it possible to reuse SSLv2 sessions. 7794 [Richard Levitte] 7795 7796 *) In copy_email() check for >= 0 as a return value for 7797 X509_NAME_get_index_by_NID() since 0 is a valid index. 7798 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 7799 7800 *) Avoid coredump with unsupported or invalid public keys by checking if 7801 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 7802 PKCS7_verify() fails with non detached data. 7803 [Steve Henson] 7804 7805 *) Don't use getenv in library functions when run as setuid/setgid. 7806 New function OPENSSL_issetugid(). 7807 [Ulf Moeller] 7808 7809 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 7810 due to incorrect handling of multi-threading: 7811 7812 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 7813 7814 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 7815 7816 3. Count how many times MemCheck_off() has been called so that 7817 nested use can be treated correctly. This also avoids 7818 inband-signalling in the previous code (which relied on the 7819 assumption that thread ID 0 is impossible). 7820 [Bodo Moeller] 7821 7822 *) Add "-rand" option also to s_client and s_server. 7823 [Lutz Jaenicke] 7824 7825 *) Fix CPU detection on Irix 6.x. 7826 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 7827 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7828 7829 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 7830 was empty. 7831 [Steve Henson] 7832 [This change does not apply to 0.9.7.] 7833 7834 *) Use the cached encoding of an X509_NAME structure rather than 7835 copying it. This is apparently the reason for the libsafe "errors" 7836 but the code is actually correct. 7837 [Steve Henson] 7838 7839 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 7840 Bleichenbacher's DSA attack. 7841 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 7842 to be set and top=0 forces the highest bit to be set; top=-1 is new 7843 and leaves the highest bit random. 7844 [Ulf Moeller, Bodo Moeller] 7845 7846 *) In the NCONF_...-based implementations for CONF_... queries 7847 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 7848 a temporary CONF structure with the data component set to NULL 7849 (which gives segmentation faults in lh_retrieve). 7850 Instead, use NULL for the CONF pointer in CONF_get_string and 7851 CONF_get_number (which may use environment variables) and directly 7852 return NULL from CONF_get_section. 7853 [Bodo Moeller] 7854 7855 *) Fix potential buffer overrun for EBCDIC. 7856 [Ulf Moeller] 7857 7858 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 7859 keyUsage if basicConstraints absent for a CA. 7860 [Steve Henson] 7861 7862 *) Make SMIME_write_PKCS7() write mail header values with a format that 7863 is more generally accepted (no spaces before the semicolon), since 7864 some programs can't parse those values properly otherwise. Also make 7865 sure BIO's that break lines after each write do not create invalid 7866 headers. 7867 [Richard Levitte] 7868 7869 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 7870 macros previously used would not encode an empty SEQUENCE OF 7871 and break the signature. 7872 [Steve Henson] 7873 [This change does not apply to 0.9.7.] 7874 7875 *) Zero the premaster secret after deriving the master secret in 7876 DH ciphersuites. 7877 [Steve Henson] 7878 7879 *) Add some EVP_add_digest_alias registrations (as found in 7880 OpenSSL_add_all_digests()) to SSL_library_init() 7881 aka OpenSSL_add_ssl_algorithms(). This provides improved 7882 compatibility with peers using X.509 certificates 7883 with unconventional AlgorithmIdentifier OIDs. 7884 [Bodo Moeller] 7885 7886 *) Fix for Irix with NO_ASM. 7887 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7888 7889 *) ./config script fixes. 7890 [Ulf Moeller, Richard Levitte] 7891 7892 *) Fix 'openssl passwd -1'. 7893 [Bodo Moeller] 7894 7895 *) Change PKCS12_key_gen_asc() so it can cope with non null 7896 terminated strings whose length is passed in the passlen 7897 parameter, for example from PEM callbacks. This was done 7898 by adding an extra length parameter to asc2uni(). 7899 [Steve Henson, reported by <oddissey@samsung.co.kr>] 7900 7901 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 7902 call failed, free the DSA structure. 7903 [Bodo Moeller] 7904 7905 *) Fix to uni2asc() to cope with zero length Unicode strings. 7906 These are present in some PKCS#12 files. 7907 [Steve Henson] 7908 7909 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 7910 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 7911 when writing a 32767 byte record. 7912 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 7913 7914 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 7915 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 7916 7917 (RSA objects have a reference count access to which is protected 7918 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 7919 so they are meant to be shared between threads.) 7920 [Bodo Moeller, Geoff Thorpe; original patch submitted by 7921 "Reddie, Steven" <Steven.Reddie@ca.com>] 7922 7923 *) Fix a deadlock in CRYPTO_mem_leaks(). 7924 [Bodo Moeller] 7925 7926 *) Use better test patterns in bntest. 7927 [Ulf M��ller] 7928 7929 *) rand_win.c fix for Borland C. 7930 [Ulf M��ller] 7931 7932 *) BN_rshift bugfix for n == 0. 7933 [Bodo Moeller] 7934 7935 *) Add a 'bctest' script that checks for some known 'bc' bugs 7936 so that 'make test' does not abort just because 'bc' is broken. 7937 [Bodo Moeller] 7938 7939 *) Store verify_result within SSL_SESSION also for client side to 7940 avoid potential security hole. (Re-used sessions on the client side 7941 always resulted in verify_result==X509_V_OK, not using the original 7942 result of the server certificate verification.) 7943 [Lutz Jaenicke] 7944 7945 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 7946 SSL3_RT_APPLICATION_DATA, return 0. 7947 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 7948 [Bodo Moeller] 7949 7950 *) Fix SSL_peek: 7951 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 7952 releases, have been re-implemented by renaming the previous 7953 implementations of ssl2_read and ssl3_read to ssl2_read_internal 7954 and ssl3_read_internal, respectively, and adding 'peek' parameters 7955 to them. The new ssl[23]_{read,peek} functions are calls to 7956 ssl[23]_read_internal with the 'peek' flag set appropriately. 7957 A 'peek' parameter has also been added to ssl3_read_bytes, which 7958 does the actual work for ssl3_read_internal. 7959 [Bodo Moeller] 7960 7961 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 7962 the method-specific "init()" handler. Also clean up ex_data after 7963 calling the method-specific "finish()" handler. Previously, this was 7964 happening the other way round. 7965 [Geoff Thorpe] 7966 7967 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 7968 The previous value, 12, was not always sufficient for BN_mod_exp(). 7969 [Bodo Moeller] 7970 7971 *) Make sure that shared libraries get the internal name engine with 7972 the full version number and not just 0. This should mark the 7973 shared libraries as not backward compatible. Of course, this should 7974 be changed again when we can guarantee backward binary compatibility. 7975 [Richard Levitte] 7976 7977 *) Fix typo in get_cert_by_subject() in by_dir.c 7978 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 7979 7980 *) Rework the system to generate shared libraries: 7981 7982 - Make note of the expected extension for the shared libraries and 7983 if there is a need for symbolic links from for example libcrypto.so.0 7984 to libcrypto.so.0.9.7. There is extended info in Configure for 7985 that. 7986 7987 - Make as few rebuilds of the shared libraries as possible. 7988 7989 - Still avoid linking the OpenSSL programs with the shared libraries. 7990 7991 - When installing, install the shared libraries separately from the 7992 static ones. 7993 [Richard Levitte] 7994 7995 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 7996 7997 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 7998 and not in SSL_clear because the latter is also used by the 7999 accept/connect functions; previously, the settings made by 8000 SSL_set_read_ahead would be lost during the handshake. 8001 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 8002 8003 *) Correct util/mkdef.pl to be selective about disabled algorithms. 8004 Previously, it would create entries for disableed algorithms no 8005 matter what. 8006 [Richard Levitte] 8007 8008 *) Added several new manual pages for SSL_* function. 8009 [Lutz Jaenicke] 8010 8011 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 8012 8013 *) In ssl23_get_client_hello, generate an error message when faced 8014 with an initial SSL 3.0/TLS record that is too small to contain the 8015 first two bytes of the ClientHello message, i.e. client_version. 8016 (Note that this is a pathologic case that probably has never happened 8017 in real life.) The previous approach was to use the version number 8018 from the record header as a substitute; but our protocol choice 8019 should not depend on that one because it is not authenticated 8020 by the Finished messages. 8021 [Bodo Moeller] 8022 8023 *) More robust randomness gathering functions for Windows. 8024 [Jeffrey Altman <jaltman@columbia.edu>] 8025 8026 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 8027 not set then we don't setup the error code for issuer check errors 8028 to avoid possibly overwriting other errors which the callback does 8029 handle. If an application does set the flag then we assume it knows 8030 what it is doing and can handle the new informational codes 8031 appropriately. 8032 [Steve Henson] 8033 8034 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 8035 a general "ANY" type, as such it should be able to decode anything 8036 including tagged types. However it didn't check the class so it would 8037 wrongly interpret tagged types in the same way as their universal 8038 counterpart and unknown types were just rejected. Changed so that the 8039 tagged and unknown types are handled in the same way as a SEQUENCE: 8040 that is the encoding is stored intact. There is also a new type 8041 "V_ASN1_OTHER" which is used when the class is not universal, in this 8042 case we have no idea what the actual type is so we just lump them all 8043 together. 8044 [Steve Henson] 8045 8046 *) On VMS, stdout may very well lead to a file that is written to 8047 in a record-oriented fashion. That means that every write() will 8048 write a separate record, which will be read separately by the 8049 programs trying to read from it. This can be very confusing. 8050 8051 The solution is to put a BIO filter in the way that will buffer 8052 text until a linefeed is reached, and then write everything a 8053 line at a time, so every record written will be an actual line, 8054 not chunks of lines and not (usually doesn't happen, but I've 8055 seen it once) several lines in one record. BIO_f_linebuffer() is 8056 the answer. 8057 8058 Currently, it's a VMS-only method, because that's where it has 8059 been tested well enough. 8060 [Richard Levitte] 8061 8062 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 8063 it can return incorrect results. 8064 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 8065 but it was in 0.9.6-beta[12].) 8066 [Bodo Moeller] 8067 8068 *) Disable the check for content being present when verifying detached 8069 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 8070 include zero length content when signing messages. 8071 [Steve Henson] 8072 8073 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 8074 BIO_ctrl (for BIO pairs). 8075 [Bodo M��ller] 8076 8077 *) Add DSO method for VMS. 8078 [Richard Levitte] 8079 8080 *) Bug fix: Montgomery multiplication could produce results with the 8081 wrong sign. 8082 [Ulf M��ller] 8083 8084 *) Add RPM specification openssl.spec and modify it to build three 8085 packages. The default package contains applications, application 8086 documentation and run-time libraries. The devel package contains 8087 include files, static libraries and function documentation. The 8088 doc package contains the contents of the doc directory. The original 8089 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 8090 [Richard Levitte] 8091 8092 *) Add a large number of documentation files for many SSL routines. 8093 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 8094 8095 *) Add a configuration entry for Sony News 4. 8096 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 8097 8098 *) Don't set the two most significant bits to one when generating a 8099 random number < q in the DSA library. 8100 [Ulf M��ller] 8101 8102 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 8103 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 8104 the underlying transport is blocking) if a handshake took place. 8105 (The default behaviour is needed by applications such as s_client 8106 and s_server that use select() to determine when to use SSL_read; 8107 but for applications that know in advance when to expect data, it 8108 just makes things more complicated.) 8109 [Bodo Moeller] 8110 8111 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 8112 from EGD. 8113 [Ben Laurie] 8114 8115 *) Add a few more EBCDIC conditionals that make `req' and `x509' 8116 work better on such systems. 8117 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8118 8119 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 8120 Update PKCS12_parse() so it copies the friendlyName and the 8121 keyid to the certificates aux info. 8122 [Steve Henson] 8123 8124 *) Fix bug in PKCS7_verify() which caused an infinite loop 8125 if there was more than one signature. 8126 [Sven Uszpelkat <su@celocom.de>] 8127 8128 *) Major change in util/mkdef.pl to include extra information 8129 about each symbol, as well as presentig variables as well 8130 as functions. This change means that there's n more need 8131 to rebuild the .num files when some algorithms are excluded. 8132 [Richard Levitte] 8133 8134 *) Allow the verify time to be set by an application, 8135 rather than always using the current time. 8136 [Steve Henson] 8137 8138 *) Phase 2 verify code reorganisation. The certificate 8139 verify code now looks up an issuer certificate by a 8140 number of criteria: subject name, authority key id 8141 and key usage. It also verifies self signed certificates 8142 by the same criteria. The main comparison function is 8143 X509_check_issued() which performs these checks. 8144 8145 Lot of changes were necessary in order to support this 8146 without completely rewriting the lookup code. 8147 8148 Authority and subject key identifier are now cached. 8149 8150 The LHASH 'certs' is X509_STORE has now been replaced 8151 by a STACK_OF(X509_OBJECT). This is mainly because an 8152 LHASH can't store or retrieve multiple objects with 8153 the same hash value. 8154 8155 As a result various functions (which were all internal 8156 use only) have changed to handle the new X509_STORE 8157 structure. This will break anything that messed round 8158 with X509_STORE internally. 8159 8160 The functions X509_STORE_add_cert() now checks for an 8161 exact match, rather than just subject name. 8162 8163 The X509_STORE API doesn't directly support the retrieval 8164 of multiple certificates matching a given criteria, however 8165 this can be worked round by performing a lookup first 8166 (which will fill the cache with candidate certificates) 8167 and then examining the cache for matches. This is probably 8168 the best we can do without throwing out X509_LOOKUP 8169 entirely (maybe later...). 8170 8171 The X509_VERIFY_CTX structure has been enhanced considerably. 8172 8173 All certificate lookup operations now go via a get_issuer() 8174 callback. Although this currently uses an X509_STORE it 8175 can be replaced by custom lookups. This is a simple way 8176 to bypass the X509_STORE hackery necessary to make this 8177 work and makes it possible to use more efficient techniques 8178 in future. A very simple version which uses a simple 8179 STACK for its trusted certificate store is also provided 8180 using X509_STORE_CTX_trusted_stack(). 8181 8182 The verify_cb() and verify() callbacks now have equivalents 8183 in the X509_STORE_CTX structure. 8184 8185 X509_STORE_CTX also has a 'flags' field which can be used 8186 to customise the verify behaviour. 8187 [Steve Henson] 8188 8189 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 8190 excludes S/MIME capabilities. 8191 [Steve Henson] 8192 8193 *) When a certificate request is read in keep a copy of the 8194 original encoding of the signed data and use it when outputing 8195 again. Signatures then use the original encoding rather than 8196 a decoded, encoded version which may cause problems if the 8197 request is improperly encoded. 8198 [Steve Henson] 8199 8200 *) For consistency with other BIO_puts implementations, call 8201 buffer_write(b, ...) directly in buffer_puts instead of calling 8202 BIO_write(b, ...). 8203 8204 In BIO_puts, increment b->num_write as in BIO_write. 8205 [Peter.Sylvester@EdelWeb.fr] 8206 8207 *) Fix BN_mul_word for the case where the word is 0. (We have to use 8208 BN_zero, we may not return a BIGNUM with an array consisting of 8209 words set to zero.) 8210 [Bodo Moeller] 8211 8212 *) Avoid calling abort() from within the library when problems are 8213 detected, except if preprocessor symbols have been defined 8214 (such as REF_CHECK, BN_DEBUG etc.). 8215 [Bodo Moeller] 8216 8217 *) New openssl application 'rsautl'. This utility can be 8218 used for low level RSA operations. DER public key 8219 BIO/fp routines also added. 8220 [Steve Henson] 8221 8222 *) New Configure entry and patches for compiling on QNX 4. 8223 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 8224 8225 *) A demo state-machine implementation was sponsored by 8226 Nuron (http://www.nuron.com/) and is now available in 8227 demos/state_machine. 8228 [Ben Laurie] 8229 8230 *) New options added to the 'dgst' utility for signature 8231 generation and verification. 8232 [Steve Henson] 8233 8234 *) Unrecognized PKCS#7 content types are now handled via a 8235 catch all ASN1_TYPE structure. This allows unsupported 8236 types to be stored as a "blob" and an application can 8237 encode and decode it manually. 8238 [Steve Henson] 8239 8240 *) Fix various signed/unsigned issues to make a_strex.c 8241 compile under VC++. 8242 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 8243 8244 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 8245 length if passed a buffer. ASN1_INTEGER_to_BN failed 8246 if passed a NULL BN and its argument was negative. 8247 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 8248 8249 *) Modification to PKCS#7 encoding routines to output definite 8250 length encoding. Since currently the whole structures are in 8251 memory there's not real point in using indefinite length 8252 constructed encoding. However if OpenSSL is compiled with 8253 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 8254 [Steve Henson] 8255 8256 *) Added BIO_vprintf() and BIO_vsnprintf(). 8257 [Richard Levitte] 8258 8259 *) Added more prefixes to parse for in the the strings written 8260 through a logging bio, to cover all the levels that are available 8261 through syslog. The prefixes are now: 8262 8263 PANIC, EMERG, EMR => LOG_EMERG 8264 ALERT, ALR => LOG_ALERT 8265 CRIT, CRI => LOG_CRIT 8266 ERROR, ERR => LOG_ERR 8267 WARNING, WARN, WAR => LOG_WARNING 8268 NOTICE, NOTE, NOT => LOG_NOTICE 8269 INFO, INF => LOG_INFO 8270 DEBUG, DBG => LOG_DEBUG 8271 8272 and as before, if none of those prefixes are present at the 8273 beginning of the string, LOG_ERR is chosen. 8274 8275 On Win32, the LOG_* levels are mapped according to this: 8276 8277 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 8278 LOG_WARNING => EVENTLOG_WARNING_TYPE 8279 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 8280 8281 [Richard Levitte] 8282 8283 *) Made it possible to reconfigure with just the configuration 8284 argument "reconf" or "reconfigure". The command line arguments 8285 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 8286 and are retrieved from there when reconfiguring. 8287 [Richard Levitte] 8288 8289 *) MD4 implemented. 8290 [Assar Westerlund <assar@sics.se>, Richard Levitte] 8291 8292 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 8293 [Richard Levitte] 8294 8295 *) The obj_dat.pl script was messing up the sorting of object 8296 names. The reason was that it compared the quoted version 8297 of strings as a result "OCSP" > "OCSP Signing" because 8298 " > SPACE. Changed script to store unquoted versions of 8299 names and add quotes on output. It was also omitting some 8300 names from the lookup table if they were given a default 8301 value (that is if SN is missing it is given the same 8302 value as LN and vice versa), these are now added on the 8303 grounds that if an object has a name we should be able to 8304 look it up. Finally added warning output when duplicate 8305 short or long names are found. 8306 [Steve Henson] 8307 8308 *) Changes needed for Tandem NSK. 8309 [Scott Uroff <scott@xypro.com>] 8310 8311 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 8312 RSA_padding_check_SSLv23(), special padding was never detected 8313 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 8314 version rollback attacks was not effective. 8315 8316 In s23_clnt.c, don't use special rollback-attack detection padding 8317 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 8318 client; similarly, in s23_srvr.c, don't do the rollback check if 8319 SSL 2.0 is the only protocol enabled in the server. 8320 [Bodo Moeller] 8321 8322 *) Make it possible to get hexdumps of unprintable data with 'openssl 8323 asn1parse'. By implication, the functions ASN1_parse_dump() and 8324 BIO_dump_indent() are added. 8325 [Richard Levitte] 8326 8327 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 8328 these print out strings and name structures based on various 8329 flags including RFC2253 support and proper handling of 8330 multibyte characters. Added options to the 'x509' utility 8331 to allow the various flags to be set. 8332 [Steve Henson] 8333 8334 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 8335 Also change the functions X509_cmp_current_time() and 8336 X509_gmtime_adj() work with an ASN1_TIME structure, 8337 this will enable certificates using GeneralizedTime in validity 8338 dates to be checked. 8339 [Steve Henson] 8340 8341 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 8342 negative public key encodings) on by default, 8343 NO_NEG_PUBKEY_BUG can be set to disable it. 8344 [Steve Henson] 8345 8346 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 8347 content octets. An i2c_ASN1_OBJECT is unnecessary because 8348 the encoding can be trivially obtained from the structure. 8349 [Steve Henson] 8350 8351 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 8352 not read locks (CRYPTO_r_[un]lock). 8353 [Bodo Moeller] 8354 8355 *) A first attempt at creating official support for shared 8356 libraries through configuration. I've kept it so the 8357 default is static libraries only, and the OpenSSL programs 8358 are always statically linked for now, but there are 8359 preparations for dynamic linking in place. 8360 This has been tested on Linux and Tru64. 8361 [Richard Levitte] 8362 8363 *) Randomness polling function for Win9x, as described in: 8364 Peter Gutmann, Software Generation of Practically Strong 8365 Random Numbers. 8366 [Ulf M��ller] 8367 8368 *) Fix so PRNG is seeded in req if using an already existing 8369 DSA key. 8370 [Steve Henson] 8371 8372 *) New options to smime application. -inform and -outform 8373 allow alternative formats for the S/MIME message including 8374 PEM and DER. The -content option allows the content to be 8375 specified separately. This should allow things like Netscape 8376 form signing output easier to verify. 8377 [Steve Henson] 8378 8379 *) Fix the ASN1 encoding of tags using the 'long form'. 8380 [Steve Henson] 8381 8382 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 8383 STRING types. These convert content octets to and from the 8384 underlying type. The actual tag and length octets are 8385 already assumed to have been read in and checked. These 8386 are needed because all other string types have virtually 8387 identical handling apart from the tag. By having versions 8388 of the ASN1 functions that just operate on content octets 8389 IMPLICIT tagging can be handled properly. It also allows 8390 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 8391 and ASN1_INTEGER are identical apart from the tag. 8392 [Steve Henson] 8393 8394 *) Change the handling of OID objects as follows: 8395 8396 - New object identifiers are inserted in objects.txt, following 8397 the syntax given in objects.README. 8398 - objects.pl is used to process obj_mac.num and create a new 8399 obj_mac.h. 8400 - obj_dat.pl is used to create a new obj_dat.h, using the data in 8401 obj_mac.h. 8402 8403 This is currently kind of a hack, and the perl code in objects.pl 8404 isn't very elegant, but it works as I intended. The simplest way 8405 to check that it worked correctly is to look in obj_dat.h and 8406 check the array nid_objs and make sure the objects haven't moved 8407 around (this is important!). Additions are OK, as well as 8408 consistent name changes. 8409 [Richard Levitte] 8410 8411 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 8412 [Bodo Moeller] 8413 8414 *) Addition of the command line parameter '-rand file' to 'openssl req'. 8415 The given file adds to whatever has already been seeded into the 8416 random pool through the RANDFILE configuration file option or 8417 environment variable, or the default random state file. 8418 [Richard Levitte] 8419 8420 *) mkstack.pl now sorts each macro group into lexical order. 8421 Previously the output order depended on the order the files 8422 appeared in the directory, resulting in needless rewriting 8423 of safestack.h . 8424 [Steve Henson] 8425 8426 *) Patches to make OpenSSL compile under Win32 again. Mostly 8427 work arounds for the VC++ problem that it treats func() as 8428 func(void). Also stripped out the parts of mkdef.pl that 8429 added extra typesafe functions: these no longer exist. 8430 [Steve Henson] 8431 8432 *) Reorganisation of the stack code. The macros are now all 8433 collected in safestack.h . Each macro is defined in terms of 8434 a "stack macro" of the form SKM_<name>(type, a, b). The 8435 DEBUG_SAFESTACK is now handled in terms of function casts, 8436 this has the advantage of retaining type safety without the 8437 use of additional functions. If DEBUG_SAFESTACK is not defined 8438 then the non typesafe macros are used instead. Also modified the 8439 mkstack.pl script to handle the new form. Needs testing to see 8440 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 8441 the default if no major problems. Similar behaviour for ASN1_SET_OF 8442 and PKCS12_STACK_OF. 8443 [Steve Henson] 8444 8445 *) When some versions of IIS use the 'NET' form of private key the 8446 key derivation algorithm is different. Normally MD5(password) is 8447 used as a 128 bit RC4 key. In the modified case 8448 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 8449 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 8450 as the old Netscape_RSA functions except they have an additional 8451 'sgckey' parameter which uses the modified algorithm. Also added 8452 an -sgckey command line option to the rsa utility. Thanks to 8453 Adrian Peck <bertie@ncipher.com> for posting details of the modified 8454 algorithm to openssl-dev. 8455 [Steve Henson] 8456 8457 *) The evp_local.h macros were using 'c.##kname' which resulted in 8458 invalid expansion on some systems (SCO 5.0.5 for example). 8459 Corrected to 'c.kname'. 8460 [Phillip Porch <root@theporch.com>] 8461 8462 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 8463 a STACK of email addresses from a certificate or request, these look 8464 in the subject name and the subject alternative name extensions and 8465 omit any duplicate addresses. 8466 [Steve Henson] 8467 8468 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 8469 This makes DSA verification about 2 % faster. 8470 [Bodo Moeller] 8471 8472 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 8473 (meaning that now 2^5 values will be precomputed, which is only 4 KB 8474 plus overhead for 1024 bit moduli). 8475 This makes exponentiations about 0.5 % faster for 1024 bit 8476 exponents (as measured by "openssl speed rsa2048"). 8477 [Bodo Moeller] 8478 8479 *) Rename memory handling macros to avoid conflicts with other 8480 software: 8481 Malloc => OPENSSL_malloc 8482 Malloc_locked => OPENSSL_malloc_locked 8483 Realloc => OPENSSL_realloc 8484 Free => OPENSSL_free 8485 [Richard Levitte] 8486 8487 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 8488 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 8489 [Bodo Moeller] 8490 8491 *) CygWin32 support. 8492 [John Jarvie <jjarvie@newsguy.com>] 8493 8494 *) The type-safe stack code has been rejigged. It is now only compiled 8495 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 8496 by default all type-specific stack functions are "#define"d back to 8497 standard stack functions. This results in more streamlined output 8498 but retains the type-safety checking possibilities of the original 8499 approach. 8500 [Geoff Thorpe] 8501 8502 *) The STACK code has been cleaned up, and certain type declarations 8503 that didn't make a lot of sense have been brought in line. This has 8504 also involved a cleanup of sorts in safestack.h to more correctly 8505 map type-safe stack functions onto their plain stack counterparts. 8506 This work has also resulted in a variety of "const"ifications of 8507 lots of the code, especially "_cmp" operations which should normally 8508 be prototyped with "const" parameters anyway. 8509 [Geoff Thorpe] 8510 8511 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 8512 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 8513 (The PRNG state consists of two parts, the large pool 'state' and 'md', 8514 where all of 'md' is used each time the PRNG is used, but 'state' 8515 is used only indexed by a cyclic counter. As entropy may not be 8516 well distributed from the beginning, 'md' is important as a 8517 chaining variable. However, the output function chains only half 8518 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 8519 all of 'md', and seeding with STATE_SIZE dummy bytes will result 8520 in all of 'state' being rewritten, with the new values depending 8521 on virtually all of 'md'. This overcomes the 80 bit limitation.) 8522 [Bodo Moeller] 8523 8524 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 8525 the handshake is continued after ssl_verify_cert_chain(); 8526 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 8527 can lead to 'unexplainable' connection aborts later. 8528 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 8529 8530 *) Major EVP API cipher revision. 8531 Add hooks for extra EVP features. This allows various cipher 8532 parameters to be set in the EVP interface. Support added for variable 8533 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 8534 setting of RC2 and RC5 parameters. 8535 8536 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 8537 ciphers. 8538 8539 Remove lots of duplicated code from the EVP library. For example *every* 8540 cipher init() function handles the 'iv' in the same way according to the 8541 cipher mode. They also all do nothing if the 'key' parameter is NULL and 8542 for CFB and OFB modes they zero ctx->num. 8543 8544 New functionality allows removal of S/MIME code RC2 hack. 8545 8546 Most of the routines have the same form and so can be declared in terms 8547 of macros. 8548 8549 By shifting this to the top level EVP_CipherInit() it can be removed from 8550 all individual ciphers. If the cipher wants to handle IVs or keys 8551 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 8552 flags. 8553 8554 Change lots of functions like EVP_EncryptUpdate() to now return a 8555 value: although software versions of the algorithms cannot fail 8556 any installed hardware versions can. 8557 [Steve Henson] 8558 8559 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 8560 this option is set, tolerate broken clients that send the negotiated 8561 protocol version number instead of the requested protocol version 8562 number. 8563 [Bodo Moeller] 8564 8565 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 8566 i.e. non-zero for export ciphersuites, zero otherwise. 8567 Previous versions had this flag inverted, inconsistent with 8568 rsa_tmp_cb (..._TMP_RSA_CB). 8569 [Bodo Moeller; problem reported by Amit Chopra] 8570 8571 *) Add missing DSA library text string. Work around for some IIS 8572 key files with invalid SEQUENCE encoding. 8573 [Steve Henson] 8574 8575 *) Add a document (doc/standards.txt) that list all kinds of standards 8576 and so on that are implemented in OpenSSL. 8577 [Richard Levitte] 8578 8579 *) Enhance c_rehash script. Old version would mishandle certificates 8580 with the same subject name hash and wouldn't handle CRLs at all. 8581 Added -fingerprint option to crl utility, to support new c_rehash 8582 features. 8583 [Steve Henson] 8584 8585 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 8586 [Ulf M��ller] 8587 8588 *) Fix for SSL server purpose checking. Server checking was 8589 rejecting certificates which had extended key usage present 8590 but no ssl client purpose. 8591 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 8592 8593 *) Make PKCS#12 code work with no password. The PKCS#12 spec 8594 is a little unclear about how a blank password is handled. 8595 Since the password in encoded as a BMPString with terminating 8596 double NULL a zero length password would end up as just the 8597 double NULL. However no password at all is different and is 8598 handled differently in the PKCS#12 key generation code. NS 8599 treats a blank password as zero length. MSIE treats it as no 8600 password on export: but it will try both on import. We now do 8601 the same: PKCS12_parse() tries zero length and no password if 8602 the password is set to "" or NULL (NULL is now a valid password: 8603 it wasn't before) as does the pkcs12 application. 8604 [Steve Henson] 8605 8606 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 8607 perror when PEM_read_bio_X509_REQ fails, the error message must 8608 be obtained from the error queue. 8609 [Bodo Moeller] 8610 8611 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 8612 it in ERR_remove_state if appropriate, and change ERR_get_state 8613 accordingly to avoid race conditions (this is necessary because 8614 thread_hash is no longer constant once set). 8615 [Bodo Moeller] 8616 8617 *) Bugfix for linux-elf makefile.one. 8618 [Ulf M��ller] 8619 8620 *) RSA_get_default_method() will now cause a default 8621 RSA_METHOD to be chosen if one doesn't exist already. 8622 Previously this was only set during a call to RSA_new() 8623 or RSA_new_method(NULL) meaning it was possible for 8624 RSA_get_default_method() to return NULL. 8625 [Geoff Thorpe] 8626 8627 *) Added native name translation to the existing DSO code 8628 that will convert (if the flag to do so is set) filenames 8629 that are sufficiently small and have no path information 8630 into a canonical native form. Eg. "blah" converted to 8631 "libblah.so" or "blah.dll" etc. 8632 [Geoff Thorpe] 8633 8634 *) New function ERR_error_string_n(e, buf, len) which is like 8635 ERR_error_string(e, buf), but writes at most 'len' bytes 8636 including the 0 terminator. For ERR_error_string_n, 'buf' 8637 may not be NULL. 8638 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 8639 8640 *) CONF library reworked to become more general. A new CONF 8641 configuration file reader "class" is implemented as well as a 8642 new functions (NCONF_*, for "New CONF") to handle it. The now 8643 old CONF_* functions are still there, but are reimplemented to 8644 work in terms of the new functions. Also, a set of functions 8645 to handle the internal storage of the configuration data is 8646 provided to make it easier to write new configuration file 8647 reader "classes" (I can definitely see something reading a 8648 configuration file in XML format, for example), called _CONF_*, 8649 or "the configuration storage API"... 8650 8651 The new configuration file reading functions are: 8652 8653 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 8654 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 8655 8656 NCONF_default, NCONF_WIN32 8657 8658 NCONF_dump_fp, NCONF_dump_bio 8659 8660 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 8661 NCONF_new creates a new CONF object. This works in the same way 8662 as other interfaces in OpenSSL, like the BIO interface. 8663 NCONF_dump_* dump the internal storage of the configuration file, 8664 which is useful for debugging. All other functions take the same 8665 arguments as the old CONF_* functions wth the exception of the 8666 first that must be a `CONF *' instead of a `LHASH *'. 8667 8668 To make it easer to use the new classes with the old CONF_* functions, 8669 the function CONF_set_default_method is provided. 8670 [Richard Levitte] 8671 8672 *) Add '-tls1' option to 'openssl ciphers', which was already 8673 mentioned in the documentation but had not been implemented. 8674 (This option is not yet really useful because even the additional 8675 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 8676 [Bodo Moeller] 8677 8678 *) Initial DSO code added into libcrypto for letting OpenSSL (and 8679 OpenSSL-based applications) load shared libraries and bind to 8680 them in a portable way. 8681 [Geoff Thorpe, with contributions from Richard Levitte] 8682 8683 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 8684 8685 *) Make sure _lrotl and _lrotr are only used with MSVC. 8686 8687 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 8688 (the default implementation of RAND_status). 8689 8690 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 8691 to '-clrext' (= clear extensions), as intended and documented. 8692 [Bodo Moeller; inconsistency pointed out by Michael Attili 8693 <attili@amaxo.com>] 8694 8695 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 8696 was larger than the MD block size. 8697 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 8698 8699 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 8700 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 8701 using the passed key: if the passed key was a private key the result 8702 of X509_print(), for example, would be to print out all the private key 8703 components. 8704 [Steve Henson] 8705 8706 *) des_quad_cksum() byte order bug fix. 8707 [Ulf M��ller, using the problem description in krb4-0.9.7, where 8708 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 8709 8710 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 8711 discouraged. 8712 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 8713 8714 *) For easily testing in shell scripts whether some command 8715 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 8716 returns with exit code 0 iff no command of the given name is available. 8717 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 8718 the output goes to stdout and nothing is printed to stderr. 8719 Additional arguments are always ignored. 8720 8721 Since for each cipher there is a command of the same name, 8722 the 'no-cipher' compilation switches can be tested this way. 8723 8724 ('openssl no-XXX' is not able to detect pseudo-commands such 8725 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 8726 [Bodo Moeller] 8727 8728 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 8729 [Bodo Moeller] 8730 8731 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 8732 is set; it will be thrown away anyway because each handshake creates 8733 its own key. 8734 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 8735 to parameters -- in previous versions (since OpenSSL 0.9.3) the 8736 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 8737 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 8738 [Bodo Moeller] 8739 8740 *) New s_client option -ign_eof: EOF at stdin is ignored, and 8741 'Q' and 'R' lose their special meanings (quit/renegotiate). 8742 This is part of what -quiet does; unlike -quiet, -ign_eof 8743 does not suppress any output. 8744 [Richard Levitte] 8745 8746 *) Add compatibility options to the purpose and trust code. The 8747 purpose X509_PURPOSE_ANY is "any purpose" which automatically 8748 accepts a certificate or CA, this was the previous behaviour, 8749 with all the associated security issues. 8750 8751 X509_TRUST_COMPAT is the old trust behaviour: only and 8752 automatically trust self signed roots in certificate store. A 8753 new trust setting X509_TRUST_DEFAULT is used to specify that 8754 a purpose has no associated trust setting and it should instead 8755 use the value in the default purpose. 8756 [Steve Henson] 8757 8758 *) Fix the PKCS#8 DSA private key code so it decodes keys again 8759 and fix a memory leak. 8760 [Steve Henson] 8761 8762 *) In util/mkerr.pl (which implements 'make errors'), preserve 8763 reason strings from the previous version of the .c file, as 8764 the default to have only downcase letters (and digits) in 8765 automatically generated reasons codes is not always appropriate. 8766 [Bodo Moeller] 8767 8768 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 8769 using strerror. Previously, ERR_reason_error_string() returned 8770 library names as reason strings for SYSerr; but SYSerr is a special 8771 case where small numbers are errno values, not library numbers. 8772 [Bodo Moeller] 8773 8774 *) Add '-dsaparam' option to 'openssl dhparam' application. This 8775 converts DSA parameters into DH parameters. (When creating parameters, 8776 DSA_generate_parameters is used.) 8777 [Bodo Moeller] 8778 8779 *) Include 'length' (recommended exponent length) in C code generated 8780 by 'openssl dhparam -C'. 8781 [Bodo Moeller] 8782 8783 *) The second argument to set_label in perlasm was already being used 8784 so couldn't be used as a "file scope" flag. Moved to third argument 8785 which was free. 8786 [Steve Henson] 8787 8788 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 8789 instead of RAND_bytes for encryption IVs and salts. 8790 [Bodo Moeller] 8791 8792 *) Include RAND_status() into RAND_METHOD instead of implementing 8793 it only for md_rand.c Otherwise replacing the PRNG by calling 8794 RAND_set_rand_method would be impossible. 8795 [Bodo Moeller] 8796 8797 *) Don't let DSA_generate_key() enter an infinite loop if the random 8798 number generation fails. 8799 [Bodo Moeller] 8800 8801 *) New 'rand' application for creating pseudo-random output. 8802 [Bodo Moeller] 8803 8804 *) Added configuration support for Linux/IA64 8805 [Rolf Haberrecker <rolf@suse.de>] 8806 8807 *) Assembler module support for Mingw32. 8808 [Ulf M��ller] 8809 8810 *) Shared library support for HPUX (in shlib/). 8811 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 8812 8813 *) Shared library support for Solaris gcc. 8814 [Lutz Behnke <behnke@trustcenter.de>] 8815 8816 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 8817 8818 *) PKCS7_encrypt() was adding text MIME headers twice because they 8819 were added manually and by SMIME_crlf_copy(). 8820 [Steve Henson] 8821 8822 *) In bntest.c don't call BN_rand with zero bits argument. 8823 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 8824 8825 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 8826 case was implemented. This caused BN_div_recp() to fail occasionally. 8827 [Ulf M��ller] 8828 8829 *) Add an optional second argument to the set_label() in the perl 8830 assembly language builder. If this argument exists and is set 8831 to 1 it signals that the assembler should use a symbol whose 8832 scope is the entire file, not just the current function. This 8833 is needed with MASM which uses the format label:: for this scope. 8834 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 8835 8836 *) Change the ASN1 types so they are typedefs by default. Before 8837 almost all types were #define'd to ASN1_STRING which was causing 8838 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 8839 for example. 8840 [Steve Henson] 8841 8842 *) Change names of new functions to the new get1/get0 naming 8843 convention: After 'get1', the caller owns a reference count 8844 and has to call ..._free; 'get0' returns a pointer to some 8845 data structure without incrementing reference counters. 8846 (Some of the existing 'get' functions increment a reference 8847 counter, some don't.) 8848 Similarly, 'set1' and 'add1' functions increase reference 8849 counters or duplicate objects. 8850 [Steve Henson] 8851 8852 *) Allow for the possibility of temp RSA key generation failure: 8853 the code used to assume it always worked and crashed on failure. 8854 [Steve Henson] 8855 8856 *) Fix potential buffer overrun problem in BIO_printf(). 8857 [Ulf M��ller, using public domain code by Patrick Powell; problem 8858 pointed out by David Sacerdote <das33@cornell.edu>] 8859 8860 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 8861 RAND_egd() and RAND_status(). In the command line application, 8862 the EGD socket can be specified like a seed file using RANDFILE 8863 or -rand. 8864 [Ulf M��ller] 8865 8866 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 8867 Some CAs (e.g. Verisign) distribute certificates in this form. 8868 [Steve Henson] 8869 8870 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 8871 list to exclude them. This means that no special compilation option 8872 is needed to use anonymous DH: it just needs to be included in the 8873 cipher list. 8874 [Steve Henson] 8875 8876 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 8877 EVP_MD_type. The old functionality is available in a new macro called 8878 EVP_MD_md(). Change code that uses it and update docs. 8879 [Steve Henson] 8880 8881 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 8882 where the 'void *' argument is replaced by a function pointer argument. 8883 Previously 'void *' was abused to point to functions, which works on 8884 many platforms, but is not correct. As these functions are usually 8885 called by macros defined in OpenSSL header files, most source code 8886 should work without changes. 8887 [Richard Levitte] 8888 8889 *) <openssl/opensslconf.h> (which is created by Configure) now contains 8890 sections with information on -D... compiler switches used for 8891 compiling the library so that applications can see them. To enable 8892 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 8893 must be defined. E.g., 8894 #define OPENSSL_ALGORITHM_DEFINES 8895 #include <openssl/opensslconf.h> 8896 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 8897 [Richard Levitte, Ulf and Bodo M��ller] 8898 8899 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 8900 record layer. 8901 [Bodo Moeller] 8902 8903 *) Change the 'other' type in certificate aux info to a STACK_OF 8904 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 8905 the required ASN1 format: arbitrary types determined by an OID. 8906 [Steve Henson] 8907 8908 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 8909 argument to 'req'. This is not because the function is newer or 8910 better than others it just uses the work 'NEW' in the certificate 8911 request header lines. Some software needs this. 8912 [Steve Henson] 8913 8914 *) Reorganise password command line arguments: now passwords can be 8915 obtained from various sources. Delete the PEM_cb function and make 8916 it the default behaviour: i.e. if the callback is NULL and the 8917 usrdata argument is not NULL interpret it as a null terminated pass 8918 phrase. If usrdata and the callback are NULL then the pass phrase 8919 is prompted for as usual. 8920 [Steve Henson] 8921 8922 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 8923 the support is automatically enabled. The resulting binaries will 8924 autodetect the card and use it if present. 8925 [Ben Laurie and Compaq Inc.] 8926 8927 *) Work around for Netscape hang bug. This sends certificate request 8928 and server done in one record. Since this is perfectly legal in the 8929 SSL/TLS protocol it isn't a "bug" option and is on by default. See 8930 the bugs/SSLv3 entry for more info. 8931 [Steve Henson] 8932 8933 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 8934 [Andy Polyakov] 8935 8936 *) Add -rand argument to smime and pkcs12 applications and read/write 8937 of seed file. 8938 [Steve Henson] 8939 8940 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 8941 [Bodo Moeller] 8942 8943 *) Add command line password options to the remaining applications. 8944 [Steve Henson] 8945 8946 *) Bug fix for BN_div_recp() for numerators with an even number of 8947 bits. 8948 [Ulf M��ller] 8949 8950 *) More tests in bntest.c, and changed test_bn output. 8951 [Ulf M��ller] 8952 8953 *) ./config recognizes MacOS X now. 8954 [Andy Polyakov] 8955 8956 *) Bug fix for BN_div() when the first words of num and divsor are 8957 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 8958 [Ulf M��ller] 8959 8960 *) Add support for various broken PKCS#8 formats, and command line 8961 options to produce them. 8962 [Steve Henson] 8963 8964 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 8965 get temporary BIGNUMs from a BN_CTX. 8966 [Ulf M��ller] 8967 8968 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 8969 for p == 0. 8970 [Ulf M��ller] 8971 8972 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 8973 include a #define from the old name to the new. The original intent 8974 was that statically linked binaries could for example just call 8975 SSLeay_add_all_ciphers() to just add ciphers to the table and not 8976 link with digests. This never worked becayse SSLeay_add_all_digests() 8977 and SSLeay_add_all_ciphers() were in the same source file so calling 8978 one would link with the other. They are now in separate source files. 8979 [Steve Henson] 8980 8981 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 8982 [Steve Henson] 8983 8984 *) Use a less unusual form of the Miller-Rabin primality test (it used 8985 a binary algorithm for exponentiation integrated into the Miller-Rabin 8986 loop, our standard modexp algorithms are faster). 8987 [Bodo Moeller] 8988 8989 *) Support for the EBCDIC character set completed. 8990 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 8991 8992 *) Source code cleanups: use const where appropriate, eliminate casts, 8993 use void * instead of char * in lhash. 8994 [Ulf M��ller] 8995 8996 *) Bugfix: ssl3_send_server_key_exchange was not restartable 8997 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 8998 this the server could overwrite ephemeral keys that the client 8999 has already seen). 9000 [Bodo Moeller] 9001 9002 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 9003 using 50 iterations of the Rabin-Miller test. 9004 9005 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 9006 iterations of the Rabin-Miller test as required by the appendix 9007 to FIPS PUB 186[-1]) instead of DSA_is_prime. 9008 As BN_is_prime_fasttest includes trial division, DSA parameter 9009 generation becomes much faster. 9010 9011 This implies a change for the callback functions in DSA_is_prime 9012 and DSA_generate_parameters: The callback function is called once 9013 for each positive witness in the Rabin-Miller test, not just 9014 occasionally in the inner loop; and the parameters to the 9015 callback function now provide an iteration count for the outer 9016 loop rather than for the current invocation of the inner loop. 9017 DSA_generate_parameters additionally can call the callback 9018 function with an 'iteration count' of -1, meaning that a 9019 candidate has passed the trial division test (when q is generated 9020 from an application-provided seed, trial division is skipped). 9021 [Bodo Moeller] 9022 9023 *) New function BN_is_prime_fasttest that optionally does trial 9024 division before starting the Rabin-Miller test and has 9025 an additional BN_CTX * argument (whereas BN_is_prime always 9026 has to allocate at least one BN_CTX). 9027 'callback(1, -1, cb_arg)' is called when a number has passed the 9028 trial division stage. 9029 [Bodo Moeller] 9030 9031 *) Fix for bug in CRL encoding. The validity dates weren't being handled 9032 as ASN1_TIME. 9033 [Steve Henson] 9034 9035 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 9036 [Steve Henson] 9037 9038 *) New function BN_pseudo_rand(). 9039 [Ulf M��ller] 9040 9041 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 9042 bignum version of BN_from_montgomery() with the working code from 9043 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 9044 the comments. 9045 [Ulf M��ller] 9046 9047 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 9048 made it impossible to use the same SSL_SESSION data structure in 9049 SSL2 clients in multiple threads. 9050 [Bodo Moeller] 9051 9052 *) The return value of RAND_load_file() no longer counts bytes obtained 9053 by stat(). RAND_load_file(..., -1) is new and uses the complete file 9054 to seed the PRNG (previously an explicit byte count was required). 9055 [Ulf M��ller, Bodo M��ller] 9056 9057 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 9058 used (char *) instead of (void *) and had casts all over the place. 9059 [Steve Henson] 9060 9061 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 9062 [Ulf M��ller] 9063 9064 *) Retain source code compatibility for BN_prime_checks macro: 9065 BN_is_prime(..., BN_prime_checks, ...) now uses 9066 BN_prime_checks_for_size to determine the appropriate number of 9067 Rabin-Miller iterations. 9068 [Ulf M��ller] 9069 9070 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 9071 DH_CHECK_P_NOT_SAFE_PRIME. 9072 (Check if this is true? OpenPGP calls them "strong".) 9073 [Ulf M��ller] 9074 9075 *) Merge the functionality of "dh" and "gendh" programs into a new program 9076 "dhparam". The old programs are retained for now but will handle DH keys 9077 (instead of parameters) in future. 9078 [Steve Henson] 9079 9080 *) Make the ciphers, s_server and s_client programs check the return values 9081 when a new cipher list is set. 9082 [Steve Henson] 9083 9084 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 9085 ciphers. Before when the 56bit ciphers were enabled the sorting was 9086 wrong. 9087 9088 The syntax for the cipher sorting has been extended to support sorting by 9089 cipher-strength (using the strength_bits hard coded in the tables). 9090 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 9091 9092 Fix a bug in the cipher-command parser: when supplying a cipher command 9093 string with an "undefined" symbol (neither command nor alphanumeric 9094 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 9095 an error is flagged. 9096 9097 Due to the strength-sorting extension, the code of the 9098 ssl_create_cipher_list() function was completely rearranged. I hope that 9099 the readability was also increased :-) 9100 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 9101 9102 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 9103 for the first serial number and places 2 in the serial number file. This 9104 avoids problems when the root CA is created with serial number zero and 9105 the first user certificate has the same issuer name and serial number 9106 as the root CA. 9107 [Steve Henson] 9108 9109 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 9110 the new code. Add documentation for this stuff. 9111 [Steve Henson] 9112 9113 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 9114 X509_*() to X509at_*() on the grounds that they don't handle X509 9115 structures and behave in an analagous way to the X509v3 functions: 9116 they shouldn't be called directly but wrapper functions should be used 9117 instead. 9118 9119 So we also now have some wrapper functions that call the X509at functions 9120 when passed certificate requests. (TO DO: similar things can be done with 9121 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 9122 things. Some of these need some d2i or i2d and print functionality 9123 because they handle more complex structures.) 9124 [Steve Henson] 9125 9126 *) Add missing #ifndefs that caused missing symbols when building libssl 9127 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 9128 NO_RSA in ssl/s2*.c. 9129 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M��ller] 9130 9131 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 9132 has a return value which indicates the quality of the random data 9133 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 9134 error queue. New function RAND_pseudo_bytes() generates output that is 9135 guaranteed to be unique but not unpredictable. RAND_add is like 9136 RAND_seed, but takes an extra argument for an entropy estimate 9137 (RAND_seed always assumes full entropy). 9138 [Ulf M��ller] 9139 9140 *) Do more iterations of Rabin-Miller probable prime test (specifically, 9141 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 9142 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 9143 in crypto/bn/bn_prime.c for the complete table). This guarantees a 9144 false-positive rate of at most 2^-80 for random input. 9145 [Bodo Moeller] 9146 9147 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 9148 [Bodo Moeller] 9149 9150 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 9151 in the 0.9.5 release), this returns the chain 9152 from an X509_CTX structure with a dup of the stack and all 9153 the X509 reference counts upped: so the stack will exist 9154 after X509_CTX_cleanup() has been called. Modify pkcs12.c 9155 to use this. 9156 9157 Also make SSL_SESSION_print() print out the verify return 9158 code. 9159 [Steve Henson] 9160 9161 *) Add manpage for the pkcs12 command. Also change the default 9162 behaviour so MAC iteration counts are used unless the new 9163 -nomaciter option is used. This improves file security and 9164 only older versions of MSIE (4.0 for example) need it. 9165 [Steve Henson] 9166 9167 *) Honor the no-xxx Configure options when creating .DEF files. 9168 [Ulf M��ller] 9169 9170 *) Add PKCS#10 attributes to field table: challengePassword, 9171 unstructuredName and unstructuredAddress. These are taken from 9172 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 9173 international characters are used. 9174 9175 More changes to X509_ATTRIBUTE code: allow the setting of types 9176 based on strings. Remove the 'loc' parameter when adding 9177 attributes because these will be a SET OF encoding which is sorted 9178 in ASN1 order. 9179 [Steve Henson] 9180 9181 *) Initial changes to the 'req' utility to allow request generation 9182 automation. This will allow an application to just generate a template 9183 file containing all the field values and have req construct the 9184 request. 9185 9186 Initial support for X509_ATTRIBUTE handling. Stacks of these are 9187 used all over the place including certificate requests and PKCS#7 9188 structures. They are currently handled manually where necessary with 9189 some primitive wrappers for PKCS#7. The new functions behave in a 9190 manner analogous to the X509 extension functions: they allow 9191 attributes to be looked up by NID and added. 9192 9193 Later something similar to the X509V3 code would be desirable to 9194 automatically handle the encoding, decoding and printing of the 9195 more complex types. The string types like challengePassword can 9196 be handled by the string table functions. 9197 9198 Also modified the multi byte string table handling. Now there is 9199 a 'global mask' which masks out certain types. The table itself 9200 can use the flag STABLE_NO_MASK to ignore the mask setting: this 9201 is useful when for example there is only one permissible type 9202 (as in countryName) and using the mask might result in no valid 9203 types at all. 9204 [Steve Henson] 9205 9206 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 9207 SSL_get_peer_finished to allow applications to obtain the latest 9208 Finished messages sent to the peer or expected from the peer, 9209 respectively. (SSL_get_peer_finished is usually the Finished message 9210 actually received from the peer, otherwise the protocol will be aborted.) 9211 9212 As the Finished message are message digests of the complete handshake 9213 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 9214 be used for external authentication procedures when the authentication 9215 provided by SSL/TLS is not desired or is not enough. 9216 [Bodo Moeller] 9217 9218 *) Enhanced support for Alpha Linux is added. Now ./config checks if 9219 the host supports BWX extension and if Compaq C is present on the 9220 $PATH. Just exploiting of the BWX extension results in 20-30% 9221 performance kick for some algorithms, e.g. DES and RC4 to mention 9222 a couple. Compaq C in turn generates ~20% faster code for MD5 and 9223 SHA1. 9224 [Andy Polyakov] 9225 9226 *) Add support for MS "fast SGC". This is arguably a violation of the 9227 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 9228 weak crypto and after checking the certificate is SGC a second one 9229 with strong crypto. MS SGC stops the first handshake after receiving 9230 the server certificate message and sends a second client hello. Since 9231 a server will typically do all the time consuming operations before 9232 expecting any further messages from the client (server key exchange 9233 is the most expensive) there is little difference between the two. 9234 9235 To get OpenSSL to support MS SGC we have to permit a second client 9236 hello message after we have sent server done. In addition we have to 9237 reset the MAC if we do get this second client hello. 9238 [Steve Henson] 9239 9240 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 9241 if a DER encoded private key is RSA or DSA traditional format. Changed 9242 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 9243 format DER encoded private key. Newer code should use PKCS#8 format which 9244 has the key type encoded in the ASN1 structure. Added DER private key 9245 support to pkcs8 application. 9246 [Steve Henson] 9247 9248 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 9249 ciphersuites has been selected (as required by the SSL 3/TLS 1 9250 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 9251 is set, we interpret this as a request to violate the specification 9252 (the worst that can happen is a handshake failure, and 'correct' 9253 behaviour would result in a handshake failure anyway). 9254 [Bodo Moeller] 9255 9256 *) In SSL_CTX_add_session, take into account that there might be multiple 9257 SSL_SESSION structures with the same session ID (e.g. when two threads 9258 concurrently obtain them from an external cache). 9259 The internal cache can handle only one SSL_SESSION with a given ID, 9260 so if there's a conflict, we now throw out the old one to achieve 9261 consistency. 9262 [Bodo Moeller] 9263 9264 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 9265 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 9266 some routines that use cipher OIDs: some ciphers do not have OIDs 9267 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 9268 example. 9269 [Steve Henson] 9270 9271 *) Simplify the trust setting structure and code. Now we just have 9272 two sequences of OIDs for trusted and rejected settings. These will 9273 typically have values the same as the extended key usage extension 9274 and any application specific purposes. 9275 9276 The trust checking code now has a default behaviour: it will just 9277 check for an object with the same NID as the passed id. Functions can 9278 be provided to override either the default behaviour or the behaviour 9279 for a given id. SSL client, server and email already have functions 9280 in place for compatibility: they check the NID and also return "trusted" 9281 if the certificate is self signed. 9282 [Steve Henson] 9283 9284 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 9285 traditional format into an EVP_PKEY structure. 9286 [Steve Henson] 9287 9288 *) Add a password callback function PEM_cb() which either prompts for 9289 a password if usr_data is NULL or otherwise assumes it is a null 9290 terminated password. Allow passwords to be passed on command line 9291 environment or config files in a few more utilities. 9292 [Steve Henson] 9293 9294 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 9295 keys. Add some short names for PKCS#8 PBE algorithms and allow them 9296 to be specified on the command line for the pkcs8 and pkcs12 utilities. 9297 Update documentation. 9298 [Steve Henson] 9299 9300 *) Support for ASN1 "NULL" type. This could be handled before by using 9301 ASN1_TYPE but there wasn't any function that would try to read a NULL 9302 and produce an error if it couldn't. For compatibility we also have 9303 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 9304 don't allocate anything because they don't need to. 9305 [Steve Henson] 9306 9307 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 9308 for details. 9309 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 9310 9311 *) Rebuild of the memory allocation routines used by OpenSSL code and 9312 possibly others as well. The purpose is to make an interface that 9313 provide hooks so anyone can build a separate set of allocation and 9314 deallocation routines to be used by OpenSSL, for example memory 9315 pool implementations, or something else, which was previously hard 9316 since Malloc(), Realloc() and Free() were defined as macros having 9317 the values malloc, realloc and free, respectively (except for Win32 9318 compilations). The same is provided for memory debugging code. 9319 OpenSSL already comes with functionality to find memory leaks, but 9320 this gives people a chance to debug other memory problems. 9321 9322 With these changes, a new set of functions and macros have appeared: 9323 9324 CRYPTO_set_mem_debug_functions() [F] 9325 CRYPTO_get_mem_debug_functions() [F] 9326 CRYPTO_dbg_set_options() [F] 9327 CRYPTO_dbg_get_options() [F] 9328 CRYPTO_malloc_debug_init() [M] 9329 9330 The memory debug functions are NULL by default, unless the library 9331 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 9332 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 9333 gives the standard debugging functions that come with OpenSSL) or 9334 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 9335 provided by the library user) must be used. When the standard 9336 debugging functions are used, CRYPTO_dbg_set_options can be used to 9337 request additional information: 9338 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 9339 the CRYPTO_MDEBUG_xxx macro when compiling the library. 9340 9341 Also, things like CRYPTO_set_mem_functions will always give the 9342 expected result (the new set of functions is used for allocation 9343 and deallocation) at all times, regardless of platform and compiler 9344 options. 9345 9346 To finish it up, some functions that were never use in any other 9347 way than through macros have a new API and new semantic: 9348 9349 CRYPTO_dbg_malloc() 9350 CRYPTO_dbg_realloc() 9351 CRYPTO_dbg_free() 9352 9353 All macros of value have retained their old syntax. 9354 [Richard Levitte and Bodo Moeller] 9355 9356 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 9357 ordering of SMIMECapabilities wasn't in "strength order" and there 9358 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 9359 algorithm. 9360 [Steve Henson] 9361 9362 *) Some ASN1 types with illegal zero length encoding (INTEGER, 9363 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 9364 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 9365 9366 *) Merge in my S/MIME library for OpenSSL. This provides a simple 9367 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 9368 functionality to handle multipart/signed properly) and a utility 9369 called 'smime' to call all this stuff. This is based on code I 9370 originally wrote for Celo who have kindly allowed it to be 9371 included in OpenSSL. 9372 [Steve Henson] 9373 9374 *) Add variants des_set_key_checked and des_set_key_unchecked of 9375 des_set_key (aka des_key_sched). Global variable des_check_key 9376 decides which of these is called by des_set_key; this way 9377 des_check_key behaves as it always did, but applications and 9378 the library itself, which was buggy for des_check_key == 1, 9379 have a cleaner way to pick the version they need. 9380 [Bodo Moeller] 9381 9382 *) New function PKCS12_newpass() which changes the password of a 9383 PKCS12 structure. 9384 [Steve Henson] 9385 9386 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 9387 dynamic mix. In both cases the ids can be used as an index into the 9388 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 9389 functions so they accept a list of the field values and the 9390 application doesn't need to directly manipulate the X509_TRUST 9391 structure. 9392 [Steve Henson] 9393 9394 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 9395 need initialising. 9396 [Steve Henson] 9397 9398 *) Modify the way the V3 extension code looks up extensions. This now 9399 works in a similar way to the object code: we have some "standard" 9400 extensions in a static table which is searched with OBJ_bsearch() 9401 and the application can add dynamic ones if needed. The file 9402 crypto/x509v3/ext_dat.h now has the info: this file needs to be 9403 updated whenever a new extension is added to the core code and kept 9404 in ext_nid order. There is a simple program 'tabtest.c' which checks 9405 this. New extensions are not added too often so this file can readily 9406 be maintained manually. 9407 9408 There are two big advantages in doing things this way. The extensions 9409 can be looked up immediately and no longer need to be "added" using 9410 X509V3_add_standard_extensions(): this function now does nothing. 9411 [Side note: I get *lots* of email saying the extension code doesn't 9412 work because people forget to call this function] 9413 Also no dynamic allocation is done unless new extensions are added: 9414 so if we don't add custom extensions there is no need to call 9415 X509V3_EXT_cleanup(). 9416 [Steve Henson] 9417 9418 *) Modify enc utility's salting as follows: make salting the default. Add a 9419 magic header, so unsalted files fail gracefully instead of just decrypting 9420 to garbage. This is because not salting is a big security hole, so people 9421 should be discouraged from doing it. 9422 [Ben Laurie] 9423 9424 *) Fixes and enhancements to the 'x509' utility. It allowed a message 9425 digest to be passed on the command line but it only used this 9426 parameter when signing a certificate. Modified so all relevant 9427 operations are affected by the digest parameter including the 9428 -fingerprint and -x509toreq options. Also -x509toreq choked if a 9429 DSA key was used because it didn't fix the digest. 9430 [Steve Henson] 9431 9432 *) Initial certificate chain verify code. Currently tests the untrusted 9433 certificates for consistency with the verify purpose (which is set 9434 when the X509_STORE_CTX structure is set up) and checks the pathlength. 9435 9436 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 9437 this is because it will reject chains with invalid extensions whereas 9438 every previous version of OpenSSL and SSLeay made no checks at all. 9439 9440 Trust code: checks the root CA for the relevant trust settings. Trust 9441 settings have an initial value consistent with the verify purpose: e.g. 9442 if the verify purpose is for SSL client use it expects the CA to be 9443 trusted for SSL client use. However the default value can be changed to 9444 permit custom trust settings: one example of this would be to only trust 9445 certificates from a specific "secure" set of CAs. 9446 9447 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 9448 which should be used for version portability: especially since the 9449 verify structure is likely to change more often now. 9450 9451 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 9452 to set them. If not set then assume SSL clients will verify SSL servers 9453 and vice versa. 9454 9455 Two new options to the verify program: -untrusted allows a set of 9456 untrusted certificates to be passed in and -purpose which sets the 9457 intended purpose of the certificate. If a purpose is set then the 9458 new chain verify code is used to check extension consistency. 9459 [Steve Henson] 9460 9461 *) Support for the authority information access extension. 9462 [Steve Henson] 9463 9464 *) Modify RSA and DSA PEM read routines to transparently handle 9465 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 9466 public keys in a format compatible with certificate 9467 SubjectPublicKeyInfo structures. Unfortunately there were already 9468 functions called *_PublicKey_* which used various odd formats so 9469 these are retained for compatibility: however the DSA variants were 9470 never in a public release so they have been deleted. Changed dsa/rsa 9471 utilities to handle the new format: note no releases ever handled public 9472 keys so we should be OK. 9473 9474 The primary motivation for this change is to avoid the same fiasco 9475 that dogs private keys: there are several incompatible private key 9476 formats some of which are standard and some OpenSSL specific and 9477 require various evil hacks to allow partial transparent handling and 9478 even then it doesn't work with DER formats. Given the option anything 9479 other than PKCS#8 should be dumped: but the other formats have to 9480 stay in the name of compatibility. 9481 9482 With public keys and the benefit of hindsight one standard format 9483 is used which works with EVP_PKEY, RSA or DSA structures: though 9484 it clearly returns an error if you try to read the wrong kind of key. 9485 9486 Added a -pubkey option to the 'x509' utility to output the public key. 9487 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 9488 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 9489 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 9490 that do the same as the EVP_PKEY_assign_*() except they up the 9491 reference count of the added key (they don't "swallow" the 9492 supplied key). 9493 [Steve Henson] 9494 9495 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 9496 CRLs would fail if the file contained no certificates or no CRLs: 9497 added a new function to read in both types and return the number 9498 read: this means that if none are read it will be an error. The 9499 DER versions of the certificate and CRL reader would always fail 9500 because it isn't possible to mix certificates and CRLs in DER format 9501 without choking one or the other routine. Changed this to just read 9502 a certificate: this is the best we can do. Also modified the code 9503 in apps/verify.c to take notice of return codes: it was previously 9504 attempting to read in certificates from NULL pointers and ignoring 9505 any errors: this is one reason why the cert and CRL reader seemed 9506 to work. It doesn't check return codes from the default certificate 9507 routines: these may well fail if the certificates aren't installed. 9508 [Steve Henson] 9509 9510 *) Code to support otherName option in GeneralName. 9511 [Steve Henson] 9512 9513 *) First update to verify code. Change the verify utility 9514 so it warns if it is passed a self signed certificate: 9515 for consistency with the normal behaviour. X509_verify 9516 has been modified to it will now verify a self signed 9517 certificate if *exactly* the same certificate appears 9518 in the store: it was previously impossible to trust a 9519 single self signed certificate. This means that: 9520 openssl verify ss.pem 9521 now gives a warning about a self signed certificate but 9522 openssl verify -CAfile ss.pem ss.pem 9523 is OK. 9524 [Steve Henson] 9525 9526 *) For servers, store verify_result in SSL_SESSION data structure 9527 (and add it to external session representation). 9528 This is needed when client certificate verifications fails, 9529 but an application-provided verification callback (set by 9530 SSL_CTX_set_cert_verify_callback) allows accepting the session 9531 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 9532 but returns 1): When the session is reused, we have to set 9533 ssl->verify_result to the appropriate error code to avoid 9534 security holes. 9535 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 9536 9537 *) Fix a bug in the new PKCS#7 code: it didn't consider the 9538 case in PKCS7_dataInit() where the signed PKCS7 structure 9539 didn't contain any existing data because it was being created. 9540 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 9541 9542 *) Add a salt to the key derivation routines in enc.c. This 9543 forms the first 8 bytes of the encrypted file. Also add a 9544 -S option to allow a salt to be input on the command line. 9545 [Steve Henson] 9546 9547 *) New function X509_cmp(). Oddly enough there wasn't a function 9548 to compare two certificates. We do this by working out the SHA1 9549 hash and comparing that. X509_cmp() will be needed by the trust 9550 code. 9551 [Steve Henson] 9552 9553 *) SSL_get1_session() is like SSL_get_session(), but increments 9554 the reference count in the SSL_SESSION returned. 9555 [Geoff Thorpe <geoff@eu.c2.net>] 9556 9557 *) Fix for 'req': it was adding a null to request attributes. 9558 Also change the X509_LOOKUP and X509_INFO code to handle 9559 certificate auxiliary information. 9560 [Steve Henson] 9561 9562 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 9563 the 'enc' command. 9564 [Steve Henson] 9565 9566 *) Add the possibility to add extra information to the memory leak 9567 detecting output, to form tracebacks, showing from where each 9568 allocation was originated: CRYPTO_push_info("constant string") adds 9569 the string plus current file name and line number to a per-thread 9570 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 9571 is like calling CYRPTO_pop_info() until the stack is empty. 9572 Also updated memory leak detection code to be multi-thread-safe. 9573 [Richard Levitte] 9574 9575 *) Add options -text and -noout to pkcs7 utility and delete the 9576 encryption options which never did anything. Update docs. 9577 [Steve Henson] 9578 9579 *) Add options to some of the utilities to allow the pass phrase 9580 to be included on either the command line (not recommended on 9581 OSes like Unix) or read from the environment. Update the 9582 manpages and fix a few bugs. 9583 [Steve Henson] 9584 9585 *) Add a few manpages for some of the openssl commands. 9586 [Steve Henson] 9587 9588 *) Fix the -revoke option in ca. It was freeing up memory twice, 9589 leaking and not finding already revoked certificates. 9590 [Steve Henson] 9591 9592 *) Extensive changes to support certificate auxiliary information. 9593 This involves the use of X509_CERT_AUX structure and X509_AUX 9594 functions. An X509_AUX function such as PEM_read_X509_AUX() 9595 can still read in a certificate file in the usual way but it 9596 will also read in any additional "auxiliary information". By 9597 doing things this way a fair degree of compatibility can be 9598 retained: existing certificates can have this information added 9599 using the new 'x509' options. 9600 9601 Current auxiliary information includes an "alias" and some trust 9602 settings. The trust settings will ultimately be used in enhanced 9603 certificate chain verification routines: currently a certificate 9604 can only be trusted if it is self signed and then it is trusted 9605 for all purposes. 9606 [Steve Henson] 9607 9608 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 9609 The problem was that one of the replacement routines had not been working 9610 since SSLeay releases. For now the offending routine has been replaced 9611 with non-optimised assembler. Even so, this now gives around 95% 9612 performance improvement for 1024 bit RSA signs. 9613 [Mark Cox] 9614 9615 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 9616 handling. Most clients have the effective key size in bits equal to 9617 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 9618 A few however don't do this and instead use the size of the decrypted key 9619 to determine the RC2 key length and the AlgorithmIdentifier to determine 9620 the effective key length. In this case the effective key length can still 9621 be 40 bits but the key length can be 168 bits for example. This is fixed 9622 by manually forcing an RC2 key into the EVP_PKEY structure because the 9623 EVP code can't currently handle unusual RC2 key sizes: it always assumes 9624 the key length and effective key length are equal. 9625 [Steve Henson] 9626 9627 *) Add a bunch of functions that should simplify the creation of 9628 X509_NAME structures. Now you should be able to do: 9629 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 9630 and have it automatically work out the correct field type and fill in 9631 the structures. The more adventurous can try: 9632 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 9633 and it will (hopefully) work out the correct multibyte encoding. 9634 [Steve Henson] 9635 9636 *) Change the 'req' utility to use the new field handling and multibyte 9637 copy routines. Before the DN field creation was handled in an ad hoc 9638 way in req, ca, and x509 which was rather broken and didn't support 9639 BMPStrings or UTF8Strings. Since some software doesn't implement 9640 BMPStrings or UTF8Strings yet, they can be enabled using the config file 9641 using the dirstring_type option. See the new comment in the default 9642 openssl.cnf for more info. 9643 [Steve Henson] 9644 9645 *) Make crypto/rand/md_rand.c more robust: 9646 - Assure unique random numbers after fork(). 9647 - Make sure that concurrent threads access the global counter and 9648 md serializably so that we never lose entropy in them 9649 or use exactly the same state in multiple threads. 9650 Access to the large state is not always serializable because 9651 the additional locking could be a performance killer, and 9652 md should be large enough anyway. 9653 [Bodo Moeller] 9654 9655 *) New file apps/app_rand.c with commonly needed functionality 9656 for handling the random seed file. 9657 9658 Use the random seed file in some applications that previously did not: 9659 ca, 9660 dsaparam -genkey (which also ignored its '-rand' option), 9661 s_client, 9662 s_server, 9663 x509 (when signing). 9664 Except on systems with /dev/urandom, it is crucial to have a random 9665 seed file at least for key creation, DSA signing, and for DH exchanges; 9666 for RSA signatures we could do without one. 9667 9668 gendh and gendsa (unlike genrsa) used to read only the first byte 9669 of each file listed in the '-rand' option. The function as previously 9670 found in genrsa is now in app_rand.c and is used by all programs 9671 that support '-rand'. 9672 [Bodo Moeller] 9673 9674 *) In RAND_write_file, use mode 0600 for creating files; 9675 don't just chmod when it may be too late. 9676 [Bodo Moeller] 9677 9678 *) Report an error from X509_STORE_load_locations 9679 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 9680 [Bill Perry] 9681 9682 *) New function ASN1_mbstring_copy() this copies a string in either 9683 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 9684 into an ASN1_STRING type. A mask of permissible types is passed 9685 and it chooses the "minimal" type to use or an error if not type 9686 is suitable. 9687 [Steve Henson] 9688 9689 *) Add function equivalents to the various macros in asn1.h. The old 9690 macros are retained with an M_ prefix. Code inside the library can 9691 use the M_ macros. External code (including the openssl utility) 9692 should *NOT* in order to be "shared library friendly". 9693 [Steve Henson] 9694 9695 *) Add various functions that can check a certificate's extensions 9696 to see if it usable for various purposes such as SSL client, 9697 server or S/MIME and CAs of these types. This is currently 9698 VERY EXPERIMENTAL but will ultimately be used for certificate chain 9699 verification. Also added a -purpose flag to x509 utility to 9700 print out all the purposes. 9701 [Steve Henson] 9702 9703 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 9704 functions. 9705 [Steve Henson] 9706 9707 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 9708 for, obtain and decode and extension and obtain its critical flag. 9709 This allows all the necessary extension code to be handled in a 9710 single function call. 9711 [Steve Henson] 9712 9713 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 9714 platforms. See crypto/rc4/rc4_enc.c for further details. 9715 [Andy Polyakov] 9716 9717 *) New -noout option to asn1parse. This causes no output to be produced 9718 its main use is when combined with -strparse and -out to extract data 9719 from a file (which may not be in ASN.1 format). 9720 [Steve Henson] 9721 9722 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 9723 when producing the local key id. 9724 [Richard Levitte <levitte@stacken.kth.se>] 9725 9726 *) New option -dhparam in s_server. This allows a DH parameter file to be 9727 stated explicitly. If it is not stated then it tries the first server 9728 certificate file. The previous behaviour hard coded the filename 9729 "server.pem". 9730 [Steve Henson] 9731 9732 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 9733 a public key to be input or output. For example: 9734 openssl rsa -in key.pem -pubout -out pubkey.pem 9735 Also added necessary DSA public key functions to handle this. 9736 [Steve Henson] 9737 9738 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 9739 in the message. This was handled by allowing 9740 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 9741 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 9742 9743 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 9744 to the end of the strings whereas this didn't. This would cause problems 9745 if strings read with d2i_ASN1_bytes() were later modified. 9746 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 9747 9748 *) Fix for base64 decode bug. When a base64 bio reads only one line of 9749 data and it contains EOF it will end up returning an error. This is 9750 caused by input 46 bytes long. The cause is due to the way base64 9751 BIOs find the start of base64 encoded data. They do this by trying a 9752 trial decode on each line until they find one that works. When they 9753 do a flag is set and it starts again knowing it can pass all the 9754 data directly through the decoder. Unfortunately it doesn't reset 9755 the context it uses. This means that if EOF is reached an attempt 9756 is made to pass two EOFs through the context and this causes the 9757 resulting error. This can also cause other problems as well. As is 9758 usual with these problems it takes *ages* to find and the fix is 9759 trivial: move one line. 9760 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 9761 9762 *) Ugly workaround to get s_client and s_server working under Windows. The 9763 old code wouldn't work because it needed to select() on sockets and the 9764 tty (for keypresses and to see if data could be written). Win32 only 9765 supports select() on sockets so we select() with a 1s timeout on the 9766 sockets and then see if any characters are waiting to be read, if none 9767 are present then we retry, we also assume we can always write data to 9768 the tty. This isn't nice because the code then blocks until we've 9769 received a complete line of data and it is effectively polling the 9770 keyboard at 1s intervals: however it's quite a bit better than not 9771 working at all :-) A dedicated Windows application might handle this 9772 with an event loop for example. 9773 [Steve Henson] 9774 9775 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 9776 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 9777 will be called when RSA_sign() and RSA_verify() are used. This is useful 9778 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 9779 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 9780 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 9781 This necessitated the support of an extra signature type NID_md5_sha1 9782 for SSL signatures and modifications to the SSL library to use it instead 9783 of calling RSA_public_decrypt() and RSA_private_encrypt(). 9784 [Steve Henson] 9785 9786 *) Add new -verify -CAfile and -CApath options to the crl program, these 9787 will lookup a CRL issuers certificate and verify the signature in a 9788 similar way to the verify program. Tidy up the crl program so it 9789 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 9790 less strict. It will now permit CRL extensions even if it is not 9791 a V2 CRL: this will allow it to tolerate some broken CRLs. 9792 [Steve Henson] 9793 9794 *) Initialize all non-automatic variables each time one of the openssl 9795 sub-programs is started (this is necessary as they may be started 9796 multiple times from the "OpenSSL>" prompt). 9797 [Lennart Bang, Bodo Moeller] 9798 9799 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 9800 removing all other RSA functionality (this is what NO_RSA does). This 9801 is so (for example) those in the US can disable those operations covered 9802 by the RSA patent while allowing storage and parsing of RSA keys and RSA 9803 key generation. 9804 [Steve Henson] 9805 9806 *) Non-copying interface to BIO pairs. 9807 (still largely untested) 9808 [Bodo Moeller] 9809 9810 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 9811 ASCII string. This was handled independently in various places before. 9812 [Steve Henson] 9813 9814 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 9815 UTF8 strings a character at a time. 9816 [Steve Henson] 9817 9818 *) Use client_version from client hello to select the protocol 9819 (s23_srvr.c) and for RSA client key exchange verification 9820 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 9821 [Bodo Moeller] 9822 9823 *) Add various utility functions to handle SPKACs, these were previously 9824 handled by poking round in the structure internals. Added new function 9825 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 9826 print, verify and generate SPKACs. Based on an original idea from 9827 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 9828 [Steve Henson] 9829 9830 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 9831 [Andy Polyakov] 9832 9833 *) Allow the config file extension section to be overwritten on the 9834 command line. Based on an original idea from Massimiliano Pala 9835 <madwolf@comune.modena.it>. The new option is called -extensions 9836 and can be applied to ca, req and x509. Also -reqexts to override 9837 the request extensions in req and -crlexts to override the crl extensions 9838 in ca. 9839 [Steve Henson] 9840 9841 *) Add new feature to the SPKAC handling in ca. Now you can include 9842 the same field multiple times by preceding it by "XXXX." for example: 9843 1.OU="Unit name 1" 9844 2.OU="Unit name 2" 9845 this is the same syntax as used in the req config file. 9846 [Steve Henson] 9847 9848 *) Allow certificate extensions to be added to certificate requests. These 9849 are specified in a 'req_extensions' option of the req section of the 9850 config file. They can be printed out with the -text option to req but 9851 are otherwise ignored at present. 9852 [Steve Henson] 9853 9854 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 9855 data read consists of only the final block it would not decrypted because 9856 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 9857 A misplaced 'break' also meant the decrypted final block might not be 9858 copied until the next read. 9859 [Steve Henson] 9860 9861 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 9862 a few extra parameters to the DH structure: these will be useful if 9863 for example we want the value of 'q' or implement X9.42 DH. 9864 [Steve Henson] 9865 9866 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 9867 provides hooks that allow the default DSA functions or functions on a 9868 "per key" basis to be replaced. This allows hardware acceleration and 9869 hardware key storage to be handled without major modification to the 9870 library. Also added low level modexp hooks and CRYPTO_EX structure and 9871 associated functions. 9872 [Steve Henson] 9873 9874 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 9875 as "read only": it can't be written to and the buffer it points to will 9876 not be freed. Reading from a read only BIO is much more efficient than 9877 a normal memory BIO. This was added because there are several times when 9878 an area of memory needs to be read from a BIO. The previous method was 9879 to create a memory BIO and write the data to it, this results in two 9880 copies of the data and an O(n^2) reading algorithm. There is a new 9881 function BIO_new_mem_buf() which creates a read only memory BIO from 9882 an area of memory. Also modified the PKCS#7 routines to use read only 9883 memory BIOs. 9884 [Steve Henson] 9885 9886 *) Bugfix: ssl23_get_client_hello did not work properly when called in 9887 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 9888 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 9889 but a retry condition occured while trying to read the rest. 9890 [Bodo Moeller] 9891 9892 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 9893 NID_pkcs7_encrypted by default: this was wrong since this should almost 9894 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 9895 the encrypted data type: this is a more sensible place to put it and it 9896 allows the PKCS#12 code to be tidied up that duplicated this 9897 functionality. 9898 [Steve Henson] 9899 9900 *) Changed obj_dat.pl script so it takes its input and output files on 9901 the command line. This should avoid shell escape redirection problems 9902 under Win32. 9903 [Steve Henson] 9904 9905 *) Initial support for certificate extension requests, these are included 9906 in things like Xenroll certificate requests. Included functions to allow 9907 extensions to be obtained and added. 9908 [Steve Henson] 9909 9910 *) -crlf option to s_client and s_server for sending newlines as 9911 CRLF (as required by many protocols). 9912 [Bodo Moeller] 9913 9914 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 9915 9916 *) Install libRSAglue.a when OpenSSL is built with RSAref. 9917 [Ralf S. Engelschall] 9918 9919 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 9920 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 9921 9922 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 9923 program. 9924 [Steve Henson] 9925 9926 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 9927 DH parameters/keys (q is lost during that conversion, but the resulting 9928 DH parameters contain its length). 9929 9930 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 9931 much faster than DH_generate_parameters (which creates parameters 9932 where p = 2*q + 1), and also the smaller q makes DH computations 9933 much more efficient (160-bit exponentiation instead of 1024-bit 9934 exponentiation); so this provides a convenient way to support DHE 9935 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 9936 utter importance to use 9937 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9938 or 9939 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9940 when such DH parameters are used, because otherwise small subgroup 9941 attacks may become possible! 9942 [Bodo Moeller] 9943 9944 *) Avoid memory leak in i2d_DHparams. 9945 [Bodo Moeller] 9946 9947 *) Allow the -k option to be used more than once in the enc program: 9948 this allows the same encrypted message to be read by multiple recipients. 9949 [Steve Henson] 9950 9951 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 9952 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 9953 it will always use the numerical form of the OID, even if it has a short 9954 or long name. 9955 [Steve Henson] 9956 9957 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 9958 method only got called if p,q,dmp1,dmq1,iqmp components were present, 9959 otherwise bn_mod_exp was called. In the case of hardware keys for example 9960 no private key components need be present and it might store extra data 9961 in the RSA structure, which cannot be accessed from bn_mod_exp. 9962 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 9963 private key operations. 9964 [Steve Henson] 9965 9966 *) Added support for SPARC Linux. 9967 [Andy Polyakov] 9968 9969 *) pem_password_cb function type incompatibly changed from 9970 typedef int pem_password_cb(char *buf, int size, int rwflag); 9971 to 9972 ....(char *buf, int size, int rwflag, void *userdata); 9973 so that applications can pass data to their callbacks: 9974 The PEM[_ASN1]_{read,write}... functions and macros now take an 9975 additional void * argument, which is just handed through whenever 9976 the password callback is called. 9977 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 9978 9979 New function SSL_CTX_set_default_passwd_cb_userdata. 9980 9981 Compatibility note: As many C implementations push function arguments 9982 onto the stack in reverse order, the new library version is likely to 9983 interoperate with programs that have been compiled with the old 9984 pem_password_cb definition (PEM_whatever takes some data that 9985 happens to be on the stack as its last argument, and the callback 9986 just ignores this garbage); but there is no guarantee whatsoever that 9987 this will work. 9988 9989 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 9990 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 9991 problems not only on Windows, but also on some Unix platforms. 9992 To avoid problematic command lines, these definitions are now in an 9993 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 9994 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 9995 [Bodo Moeller] 9996 9997 *) MIPS III/IV assembler module is reimplemented. 9998 [Andy Polyakov] 9999 10000 *) More DES library cleanups: remove references to srand/rand and 10001 delete an unused file. 10002 [Ulf M��ller] 10003 10004 *) Add support for the the free Netwide assembler (NASM) under Win32, 10005 since not many people have MASM (ml) and it can be hard to obtain. 10006 This is currently experimental but it seems to work OK and pass all 10007 the tests. Check out INSTALL.W32 for info. 10008 [Steve Henson] 10009 10010 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 10011 without temporary keys kept an extra copy of the server key, 10012 and connections with temporary keys did not free everything in case 10013 of an error. 10014 [Bodo Moeller] 10015 10016 *) New function RSA_check_key and new openssl rsa option -check 10017 for verifying the consistency of RSA keys. 10018 [Ulf Moeller, Bodo Moeller] 10019 10020 *) Various changes to make Win32 compile work: 10021 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 10022 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 10023 comparison" warnings. 10024 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 10025 [Steve Henson] 10026 10027 *) Add a debugging option to PKCS#5 v2 key generation function: when 10028 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 10029 derived keys are printed to stderr. 10030 [Steve Henson] 10031 10032 *) Copy the flags in ASN1_STRING_dup(). 10033 [Roman E. Pavlov <pre@mo.msk.ru>] 10034 10035 *) The x509 application mishandled signing requests containing DSA 10036 keys when the signing key was also DSA and the parameters didn't match. 10037 10038 It was supposed to omit the parameters when they matched the signing key: 10039 the verifying software was then supposed to automatically use the CA's 10040 parameters if they were absent from the end user certificate. 10041 10042 Omitting parameters is no longer recommended. The test was also 10043 the wrong way round! This was probably due to unusual behaviour in 10044 EVP_cmp_parameters() which returns 1 if the parameters match. 10045 This meant that parameters were omitted when they *didn't* match and 10046 the certificate was useless. Certificates signed with 'ca' didn't have 10047 this bug. 10048 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 10049 10050 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 10051 The interface is as follows: 10052 Applications can use 10053 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 10054 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 10055 "off" is now the default. 10056 The library internally uses 10057 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 10058 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 10059 to disable memory-checking temporarily. 10060 10061 Some inconsistent states that previously were possible (and were 10062 even the default) are now avoided. 10063 10064 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 10065 with each memory chunk allocated; this is occasionally more helpful 10066 than just having a counter. 10067 10068 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 10069 10070 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 10071 extensions. 10072 [Bodo Moeller] 10073 10074 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 10075 which largely parallels "options", but is for changing API behaviour, 10076 whereas "options" are about protocol behaviour. 10077 Initial "mode" flags are: 10078 10079 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 10080 a single record has been written. 10081 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 10082 retries use the same buffer location. 10083 (But all of the contents must be 10084 copied!) 10085 [Bodo Moeller] 10086 10087 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 10088 worked. 10089 10090 *) Fix problems with no-hmac etc. 10091 [Ulf M��ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 10092 10093 *) New functions RSA_get_default_method(), RSA_set_method() and 10094 RSA_get_method(). These allows replacement of RSA_METHODs without having 10095 to mess around with the internals of an RSA structure. 10096 [Steve Henson] 10097 10098 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 10099 Also really enable memory leak checks in openssl.c and in some 10100 test programs. 10101 [Chad C. Mulligan, Bodo Moeller] 10102 10103 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 10104 up the length of negative integers. This has now been simplified to just 10105 store the length when it is first determined and use it later, rather 10106 than trying to keep track of where data is copied and updating it to 10107 point to the end. 10108 [Steve Henson, reported by Brien Wheeler 10109 <bwheeler@authentica-security.com>] 10110 10111 *) Add a new function PKCS7_signatureVerify. This allows the verification 10112 of a PKCS#7 signature but with the signing certificate passed to the 10113 function itself. This contrasts with PKCS7_dataVerify which assumes the 10114 certificate is present in the PKCS#7 structure. This isn't always the 10115 case: certificates can be omitted from a PKCS#7 structure and be 10116 distributed by "out of band" means (such as a certificate database). 10117 [Steve Henson] 10118 10119 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 10120 function prototypes in pem.h, also change util/mkdef.pl to add the 10121 necessary function names. 10122 [Steve Henson] 10123 10124 *) mk1mf.pl (used by Windows builds) did not properly read the 10125 options set by Configure in the top level Makefile, and Configure 10126 was not even able to write more than one option correctly. 10127 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 10128 [Bodo Moeller] 10129 10130 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 10131 file to be loaded from a BIO or FILE pointer. The BIO version will 10132 for example allow memory BIOs to contain config info. 10133 [Steve Henson] 10134 10135 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 10136 Whoever hopes to achieve shared-library compatibility across versions 10137 must use this, not the compile-time macro. 10138 (Exercise 0.9.4: Which is the minimum library version required by 10139 such programs?) 10140 Note: All this applies only to multi-threaded programs, others don't 10141 need locks. 10142 [Bodo Moeller] 10143 10144 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 10145 through a BIO pair triggered the default case, i.e. 10146 SSLerr(...,SSL_R_UNKNOWN_STATE). 10147 [Bodo Moeller] 10148 10149 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 10150 can use the SSL library even if none of the specific BIOs is 10151 appropriate. 10152 [Bodo Moeller] 10153 10154 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 10155 for the encoded length. 10156 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 10157 10158 *) Add initial documentation of the X509V3 functions. 10159 [Steve Henson] 10160 10161 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 10162 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 10163 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 10164 secure PKCS#8 private key format with a high iteration count. 10165 [Steve Henson] 10166 10167 *) Fix determination of Perl interpreter: A perl or perl5 10168 _directory_ in $PATH was also accepted as the interpreter. 10169 [Ralf S. Engelschall] 10170 10171 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 10172 wrong with it but it was very old and did things like calling 10173 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 10174 unusual formatting. 10175 [Steve Henson] 10176 10177 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 10178 to use the new extension code. 10179 [Steve Henson] 10180 10181 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 10182 with macros. This should make it easier to change their form, add extra 10183 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 10184 constant. 10185 [Steve Henson] 10186 10187 *) Add to configuration table a new entry that can specify an alternative 10188 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 10189 according to Mark Crispin <MRC@Panda.COM>. 10190 [Bodo Moeller] 10191 10192#if 0 10193 *) DES CBC did not update the IV. Weird. 10194 [Ben Laurie] 10195#else 10196 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 10197 Changing the behaviour of the former might break existing programs -- 10198 where IV updating is needed, des_ncbc_encrypt can be used. 10199#endif 10200 10201 *) When bntest is run from "make test" it drives bc to check its 10202 calculations, as well as internally checking them. If an internal check 10203 fails, it needs to cause bc to give a non-zero result or make test carries 10204 on without noticing the failure. Fixed. 10205 [Ben Laurie] 10206 10207 *) DES library cleanups. 10208 [Ulf M��ller] 10209 10210 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 10211 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 10212 ciphers. NOTE: although the key derivation function has been verified 10213 against some published test vectors it has not been extensively tested 10214 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 10215 of v2.0. 10216 [Steve Henson] 10217 10218 *) Instead of "mkdir -p", which is not fully portable, use new 10219 Perl script "util/mkdir-p.pl". 10220 [Bodo Moeller] 10221 10222 *) Rewrite the way password based encryption (PBE) is handled. It used to 10223 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 10224 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 10225 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 10226 the 'parameter' field of the AlgorithmIdentifier is passed to the 10227 underlying key generation function so it must do its own ASN1 parsing. 10228 This has also changed the EVP_PBE_CipherInit() function which now has a 10229 'parameter' argument instead of literal salt and iteration count values 10230 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 10231 [Steve Henson] 10232 10233 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 10234 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 10235 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 10236 KEY" because this clashed with PKCS#8 unencrypted string. Since this 10237 value was just used as a "magic string" and not used directly its 10238 value doesn't matter. 10239 [Steve Henson] 10240 10241 *) Introduce some semblance of const correctness to BN. Shame C doesn't 10242 support mutable. 10243 [Ben Laurie] 10244 10245 *) "linux-sparc64" configuration (ultrapenguin). 10246 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 10247 "linux-sparc" configuration. 10248 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 10249 10250 *) config now generates no-xxx options for missing ciphers. 10251 [Ulf M��ller] 10252 10253 *) Support the EBCDIC character set (work in progress). 10254 File ebcdic.c not yet included because it has a different license. 10255 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10256 10257 *) Support BS2000/OSD-POSIX. 10258 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10259 10260 *) Make callbacks for key generation use void * instead of char *. 10261 [Ben Laurie] 10262 10263 *) Make S/MIME samples compile (not yet tested). 10264 [Ben Laurie] 10265 10266 *) Additional typesafe stacks. 10267 [Ben Laurie] 10268 10269 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 10270 [Bodo Moeller] 10271 10272 10273 Changes between 0.9.3 and 0.9.3a [29 May 1999] 10274 10275 *) New configuration variant "sco5-gcc". 10276 10277 *) Updated some demos. 10278 [Sean O Riordain, Wade Scholine] 10279 10280 *) Add missing BIO_free at exit of pkcs12 application. 10281 [Wu Zhigang] 10282 10283 *) Fix memory leak in conf.c. 10284 [Steve Henson] 10285 10286 *) Updates for Win32 to assembler version of MD5. 10287 [Steve Henson] 10288 10289 *) Set #! path to perl in apps/der_chop to where we found it 10290 instead of using a fixed path. 10291 [Bodo Moeller] 10292 10293 *) SHA library changes for irix64-mips4-cc. 10294 [Andy Polyakov] 10295 10296 *) Improvements for VMS support. 10297 [Richard Levitte] 10298 10299 10300 Changes between 0.9.2b and 0.9.3 [24 May 1999] 10301 10302 *) Bignum library bug fix. IRIX 6 passes "make test" now! 10303 This also avoids the problems with SC4.2 and unpatched SC5. 10304 [Andy Polyakov <appro@fy.chalmers.se>] 10305 10306 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 10307 These are required because of the typesafe stack would otherwise break 10308 existing code. If old code used a structure member which used to be STACK 10309 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 10310 sk_num or sk_value it would produce an error because the num, data members 10311 are not present in STACK_OF. Now it just produces a warning. sk_set 10312 replaces the old method of assigning a value to sk_value 10313 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 10314 that does this will no longer work (and should use sk_set instead) but 10315 this could be regarded as a "questionable" behaviour anyway. 10316 [Steve Henson] 10317 10318 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 10319 correctly handle encrypted S/MIME data. 10320 [Steve Henson] 10321 10322 *) Change type of various DES function arguments from des_cblock 10323 (which means, in function argument declarations, pointer to char) 10324 to des_cblock * (meaning pointer to array with 8 char elements), 10325 which allows the compiler to do more typechecking; it was like 10326 that back in SSLeay, but with lots of ugly casts. 10327 10328 Introduce new type const_des_cblock. 10329 [Bodo Moeller] 10330 10331 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 10332 problems: find RecipientInfo structure that matches recipient certificate 10333 and initialise the ASN1 structures properly based on passed cipher. 10334 [Steve Henson] 10335 10336 *) Belatedly make the BN tests actually check the results. 10337 [Ben Laurie] 10338 10339 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 10340 to and from BNs: it was completely broken. New compilation option 10341 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 10342 key elements as negative integers. 10343 [Steve Henson] 10344 10345 *) Reorganize and speed up MD5. 10346 [Andy Polyakov <appro@fy.chalmers.se>] 10347 10348 *) VMS support. 10349 [Richard Levitte <richard@levitte.org>] 10350 10351 *) New option -out to asn1parse to allow the parsed structure to be 10352 output to a file. This is most useful when combined with the -strparse 10353 option to examine the output of things like OCTET STRINGS. 10354 [Steve Henson] 10355 10356 *) Make SSL library a little more fool-proof by not requiring any longer 10357 that SSL_set_{accept,connect}_state be called before 10358 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 10359 in many applications because usually everything *appeared* to work as 10360 intended anyway -- now it really works as intended). 10361 [Bodo Moeller] 10362 10363 *) Move openssl.cnf out of lib/. 10364 [Ulf M��ller] 10365 10366 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 10367 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 10368 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 10369 [Ralf S. Engelschall] 10370 10371 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 10372 handle PKCS#7 enveloped data properly. 10373 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 10374 10375 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 10376 copying pointers. The cert_st handling is changed by this in 10377 various ways (and thus what used to be known as ctx->default_cert 10378 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 10379 any longer when s->cert does not give us what we need). 10380 ssl_cert_instantiate becomes obsolete by this change. 10381 As soon as we've got the new code right (possibly it already is?), 10382 we have solved a couple of bugs of the earlier code where s->cert 10383 was used as if it could not have been shared with other SSL structures. 10384 10385 Note that using the SSL API in certain dirty ways now will result 10386 in different behaviour than observed with earlier library versions: 10387 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 10388 does not influence s as it used to. 10389 10390 In order to clean up things more thoroughly, inside SSL_SESSION 10391 we don't use CERT any longer, but a new structure SESS_CERT 10392 that holds per-session data (if available); currently, this is 10393 the peer's certificate chain and, for clients, the server's certificate 10394 and temporary key. CERT holds only those values that can have 10395 meaningful defaults in an SSL_CTX. 10396 [Bodo Moeller] 10397 10398 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 10399 from the internal representation. Various PKCS#7 fixes: remove some 10400 evil casts and set the enc_dig_alg field properly based on the signing 10401 key type. 10402 [Steve Henson] 10403 10404 *) Allow PKCS#12 password to be set from the command line or the 10405 environment. Let 'ca' get its config file name from the environment 10406 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 10407 and 'x509'). 10408 [Steve Henson] 10409 10410 *) Allow certificate policies extension to use an IA5STRING for the 10411 organization field. This is contrary to the PKIX definition but 10412 VeriSign uses it and IE5 only recognises this form. Document 'x509' 10413 extension option. 10414 [Steve Henson] 10415 10416 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 10417 without disallowing inline assembler and the like for non-pedantic builds. 10418 [Ben Laurie] 10419 10420 *) Support Borland C++ builder. 10421 [Janez Jere <jj@void.si>, modified by Ulf M��ller] 10422 10423 *) Support Mingw32. 10424 [Ulf M��ller] 10425 10426 *) SHA-1 cleanups and performance enhancements. 10427 [Andy Polyakov <appro@fy.chalmers.se>] 10428 10429 *) Sparc v8plus assembler for the bignum library. 10430 [Andy Polyakov <appro@fy.chalmers.se>] 10431 10432 *) Accept any -xxx and +xxx compiler options in Configure. 10433 [Ulf M��ller] 10434 10435 *) Update HPUX configuration. 10436 [Anonymous] 10437 10438 *) Add missing sk_<type>_unshift() function to safestack.h 10439 [Ralf S. Engelschall] 10440 10441 *) New function SSL_CTX_use_certificate_chain_file that sets the 10442 "extra_cert"s in addition to the certificate. (This makes sense 10443 only for "PEM" format files, as chains as a whole are not 10444 DER-encoded.) 10445 [Bodo Moeller] 10446 10447 *) Support verify_depth from the SSL API. 10448 x509_vfy.c had what can be considered an off-by-one-error: 10449 Its depth (which was not part of the external interface) 10450 was actually counting the number of certificates in a chain; 10451 now it really counts the depth. 10452 [Bodo Moeller] 10453 10454 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 10455 instead of X509err, which often resulted in confusing error 10456 messages since the error codes are not globally unique 10457 (e.g. an alleged error in ssl3_accept when a certificate 10458 didn't match the private key). 10459 10460 *) New function SSL_CTX_set_session_id_context that allows to set a default 10461 value (so that you don't need SSL_set_session_id_context for each 10462 connection using the SSL_CTX). 10463 [Bodo Moeller] 10464 10465 *) OAEP decoding bug fix. 10466 [Ulf M��ller] 10467 10468 *) Support INSTALL_PREFIX for package builders, as proposed by 10469 David Harris. 10470 [Bodo Moeller] 10471 10472 *) New Configure options "threads" and "no-threads". For systems 10473 where the proper compiler options are known (currently Solaris 10474 and Linux), "threads" is the default. 10475 [Bodo Moeller] 10476 10477 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 10478 [Bodo Moeller] 10479 10480 *) Install various scripts to $(OPENSSLDIR)/misc, not to 10481 $(INSTALLTOP)/bin -- they shouldn't clutter directories 10482 such as /usr/local/bin. 10483 [Bodo Moeller] 10484 10485 *) "make linux-shared" to build shared libraries. 10486 [Niels Poppe <niels@netbox.org>] 10487 10488 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 10489 [Ulf M��ller] 10490 10491 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 10492 extension adding in x509 utility. 10493 [Steve Henson] 10494 10495 *) Remove NOPROTO sections and error code comments. 10496 [Ulf M��ller] 10497 10498 *) Partial rewrite of the DEF file generator to now parse the ANSI 10499 prototypes. 10500 [Steve Henson] 10501 10502 *) New Configure options --prefix=DIR and --openssldir=DIR. 10503 [Ulf M��ller] 10504 10505 *) Complete rewrite of the error code script(s). It is all now handled 10506 by one script at the top level which handles error code gathering, 10507 header rewriting and C source file generation. It should be much better 10508 than the old method: it now uses a modified version of Ulf's parser to 10509 read the ANSI prototypes in all header files (thus the old K&R definitions 10510 aren't needed for error creation any more) and do a better job of 10511 translating function codes into names. The old 'ASN1 error code imbedded 10512 in a comment' is no longer necessary and it doesn't use .err files which 10513 have now been deleted. Also the error code call doesn't have to appear all 10514 on one line (which resulted in some large lines...). 10515 [Steve Henson] 10516 10517 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 10518 [Bodo Moeller] 10519 10520 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 10521 0 (which usually indicates a closed connection), but continue reading. 10522 [Bodo Moeller] 10523 10524 *) Fix some race conditions. 10525 [Bodo Moeller] 10526 10527 *) Add support for CRL distribution points extension. Add Certificate 10528 Policies and CRL distribution points documentation. 10529 [Steve Henson] 10530 10531 *) Move the autogenerated header file parts to crypto/opensslconf.h. 10532 [Ulf M��ller] 10533 10534 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 10535 8 of keying material. Merlin has also confirmed interop with this fix 10536 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 10537 [Merlin Hughes <merlin@baltimore.ie>] 10538 10539 *) Fix lots of warnings. 10540 [Richard Levitte <levitte@stacken.kth.se>] 10541 10542 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 10543 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 10544 [Richard Levitte <levitte@stacken.kth.se>] 10545 10546 *) Fix problems with sizeof(long) == 8. 10547 [Andy Polyakov <appro@fy.chalmers.se>] 10548 10549 *) Change functions to ANSI C. 10550 [Ulf M��ller] 10551 10552 *) Fix typos in error codes. 10553 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M��ller] 10554 10555 *) Remove defunct assembler files from Configure. 10556 [Ulf M��ller] 10557 10558 *) SPARC v8 assembler BIGNUM implementation. 10559 [Andy Polyakov <appro@fy.chalmers.se>] 10560 10561 *) Support for Certificate Policies extension: both print and set. 10562 Various additions to support the r2i method this uses. 10563 [Steve Henson] 10564 10565 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 10566 return a const string when you are expecting an allocated buffer. 10567 [Ben Laurie] 10568 10569 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 10570 types DirectoryString and DisplayText. 10571 [Steve Henson] 10572 10573 *) Add code to allow r2i extensions to access the configuration database, 10574 add an LHASH database driver and add several ctx helper functions. 10575 [Steve Henson] 10576 10577 *) Fix an evil bug in bn_expand2() which caused various BN functions to 10578 fail when they extended the size of a BIGNUM. 10579 [Steve Henson] 10580 10581 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 10582 support typesafe stack. 10583 [Steve Henson] 10584 10585 *) Fix typo in SSL_[gs]et_options(). 10586 [Nils Frostberg <nils@medcom.se>] 10587 10588 *) Delete various functions and files that belonged to the (now obsolete) 10589 old X509V3 handling code. 10590 [Steve Henson] 10591 10592 *) New Configure option "rsaref". 10593 [Ulf M��ller] 10594 10595 *) Don't auto-generate pem.h. 10596 [Bodo Moeller] 10597 10598 *) Introduce type-safe ASN.1 SETs. 10599 [Ben Laurie] 10600 10601 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 10602 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 10603 10604 *) Introduce type-safe STACKs. This will almost certainly break lots of code 10605 that links with OpenSSL (well at least cause lots of warnings), but fear 10606 not: the conversion is trivial, and it eliminates loads of evil casts. A 10607 few STACKed things have been converted already. Feel free to convert more. 10608 In the fullness of time, I'll do away with the STACK type altogether. 10609 [Ben Laurie] 10610 10611 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 10612 specified in <certfile> by updating the entry in the index.txt file. 10613 This way one no longer has to edit the index.txt file manually for 10614 revoking a certificate. The -revoke option does the gory details now. 10615 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 10616 10617 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 10618 `-text' option at all and this way the `-noout -text' combination was 10619 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 10620 [Ralf S. Engelschall] 10621 10622 *) Make sure a corresponding plain text error message exists for the 10623 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 10624 verify callback function determined that a certificate was revoked. 10625 [Ralf S. Engelschall] 10626 10627 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 10628 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 10629 all available cipers including rc5, which was forgotten until now. 10630 In order to let the testing shell script know which algorithms 10631 are available, a new (up to now undocumented) command 10632 "openssl list-cipher-commands" is used. 10633 [Bodo Moeller] 10634 10635 *) Bugfix: s_client occasionally would sleep in select() when 10636 it should have checked SSL_pending() first. 10637 [Bodo Moeller] 10638 10639 *) New functions DSA_do_sign and DSA_do_verify to provide access to 10640 the raw DSA values prior to ASN.1 encoding. 10641 [Ulf M��ller] 10642 10643 *) Tweaks to Configure 10644 [Niels Poppe <niels@netbox.org>] 10645 10646 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 10647 yet... 10648 [Steve Henson] 10649 10650 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 10651 [Ulf M��ller] 10652 10653 *) New config option to avoid instructions that are illegal on the 80386. 10654 The default code is faster, but requires at least a 486. 10655 [Ulf M��ller] 10656 10657 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 10658 SSL2_SERVER_VERSION (not used at all) macros, which are now the 10659 same as SSL2_VERSION anyway. 10660 [Bodo Moeller] 10661 10662 *) New "-showcerts" option for s_client. 10663 [Bodo Moeller] 10664 10665 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 10666 application. Various cleanups and fixes. 10667 [Steve Henson] 10668 10669 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 10670 modify error routines to work internally. Add error codes and PBE init 10671 to library startup routines. 10672 [Steve Henson] 10673 10674 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 10675 packing functions to asn1 and evp. Changed function names and error 10676 codes along the way. 10677 [Steve Henson] 10678 10679 *) PKCS12 integration: and so it begins... First of several patches to 10680 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 10681 objects to objects.h 10682 [Steve Henson] 10683 10684 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 10685 and display support for Thawte strong extranet extension. 10686 [Steve Henson] 10687 10688 *) Add LinuxPPC support. 10689 [Jeff Dubrule <igor@pobox.org>] 10690 10691 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 10692 bn_div_words in alpha.s. 10693 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 10694 10695 *) Make sure the RSA OAEP test is skipped under -DRSAref because 10696 OAEP isn't supported when OpenSSL is built with RSAref. 10697 [Ulf Moeller <ulf@fitug.de>] 10698 10699 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 10700 so they no longer are missing under -DNOPROTO. 10701 [Soren S. Jorvang <soren@t.dk>] 10702 10703 10704 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 10705 10706 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 10707 doesn't work when the session is reused. Coming soon! 10708 [Ben Laurie] 10709 10710 *) Fix a security hole, that allows sessions to be reused in the wrong 10711 context thus bypassing client cert protection! All software that uses 10712 client certs and session caches in multiple contexts NEEDS PATCHING to 10713 allow session reuse! A fuller solution is in the works. 10714 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 10715 10716 *) Some more source tree cleanups (removed obsolete files 10717 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 10718 permission on "config" script to be executable) and a fix for the INSTALL 10719 document. 10720 [Ulf Moeller <ulf@fitug.de>] 10721 10722 *) Remove some legacy and erroneous uses of malloc, free instead of 10723 Malloc, Free. 10724 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 10725 10726 *) Make rsa_oaep_test return non-zero on error. 10727 [Ulf Moeller <ulf@fitug.de>] 10728 10729 *) Add support for native Solaris shared libraries. Configure 10730 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 10731 if someone would make that last step automatic. 10732 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 10733 10734 *) ctx_size was not built with the right compiler during "make links". Fixed. 10735 [Ben Laurie] 10736 10737 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 10738 except NULL ciphers". This means the default cipher list will no longer 10739 enable NULL ciphers. They need to be specifically enabled e.g. with 10740 the string "DEFAULT:eNULL". 10741 [Steve Henson] 10742 10743 *) Fix to RSA private encryption routines: if p < q then it would 10744 occasionally produce an invalid result. This will only happen with 10745 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 10746 [Steve Henson] 10747 10748 *) Be less restrictive and allow also `perl util/perlpath.pl 10749 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 10750 because this way one can also use an interpreter named `perl5' (which is 10751 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 10752 installed as `perl'). 10753 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10754 10755 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 10756 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10757 10758 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 10759 advapi32.lib to Win32 build and change the pem test comparision 10760 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 10761 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 10762 and crypto/des/ede_cbcm_enc.c. 10763 [Steve Henson] 10764 10765 *) DES quad checksum was broken on big-endian architectures. Fixed. 10766 [Ben Laurie] 10767 10768 *) Comment out two functions in bio.h that aren't implemented. Fix up the 10769 Win32 test batch file so it (might) work again. The Win32 test batch file 10770 is horrible: I feel ill.... 10771 [Steve Henson] 10772 10773 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 10774 in e_os.h. Audit of header files to check ANSI and non ANSI 10775 sections: 10 functions were absent from non ANSI section and not exported 10776 from Windows DLLs. Fixed up libeay.num for new functions. 10777 [Steve Henson] 10778 10779 *) Make `openssl version' output lines consistent. 10780 [Ralf S. Engelschall] 10781 10782 *) Fix Win32 symbol export lists for BIO functions: Added 10783 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 10784 to ms/libeay{16,32}.def. 10785 [Ralf S. Engelschall] 10786 10787 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 10788 fine under Unix and passes some trivial tests I've now added. But the 10789 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 10790 added to make sure no one expects that this stuff really works in the 10791 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 10792 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 10793 openssl_bio.xs. 10794 [Ralf S. Engelschall] 10795 10796 *) Fix the generation of two part addresses in perl. 10797 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 10798 10799 *) Add config entry for Linux on MIPS. 10800 [John Tobey <jtobey@channel1.com>] 10801 10802 *) Make links whenever Configure is run, unless we are on Windoze. 10803 [Ben Laurie] 10804 10805 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 10806 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 10807 in CRLs. 10808 [Steve Henson] 10809 10810 *) Add a useful kludge to allow package maintainers to specify compiler and 10811 other platforms details on the command line without having to patch the 10812 Configure script everytime: One now can use ``perl Configure 10813 <id>:<details>'', i.e. platform ids are allowed to have details appended 10814 to them (seperated by colons). This is treated as there would be a static 10815 pre-configured entry in Configure's %table under key <id> with value 10816 <details> and ``perl Configure <id>'' is called. So, when you want to 10817 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 10818 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 10819 now, which overrides the FreeBSD-elf entry on-the-fly. 10820 [Ralf S. Engelschall] 10821 10822 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 10823 [Ben Laurie] 10824 10825 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 10826 on the `perl Configure ...' command line. This way one can compile 10827 OpenSSL libraries with Position Independent Code (PIC) which is needed 10828 for linking it into DSOs. 10829 [Ralf S. Engelschall] 10830 10831 *) Remarkably, export ciphers were totally broken and no-one had noticed! 10832 Fixed. 10833 [Ben Laurie] 10834 10835 *) Cleaned up the LICENSE document: The official contact for any license 10836 questions now is the OpenSSL core team under openssl-core@openssl.org. 10837 And add a paragraph about the dual-license situation to make sure people 10838 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 10839 to the OpenSSL toolkit. 10840 [Ralf S. Engelschall] 10841 10842 *) General source tree makefile cleanups: Made `making xxx in yyy...' 10843 display consistent in the source tree and replaced `/bin/rm' by `rm'. 10844 Additonally cleaned up the `make links' target: Remove unnecessary 10845 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 10846 to speed processing and no longer clutter the display with confusing 10847 stuff. Instead only the actually done links are displayed. 10848 [Ralf S. Engelschall] 10849 10850 *) Permit null encryption ciphersuites, used for authentication only. It used 10851 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 10852 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 10853 encryption. 10854 [Ben Laurie] 10855 10856 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 10857 signed attributes when verifying signatures (this would break them), 10858 the detached data encoding was wrong and public keys obtained using 10859 X509_get_pubkey() weren't freed. 10860 [Steve Henson] 10861 10862 *) Add text documentation for the BUFFER functions. Also added a work around 10863 to a Win95 console bug. This was triggered by the password read stuff: the 10864 last character typed gets carried over to the next fread(). If you were 10865 generating a new cert request using 'req' for example then the last 10866 character of the passphrase would be CR which would then enter the first 10867 field as blank. 10868 [Steve Henson] 10869 10870 *) Added the new `Includes OpenSSL Cryptography Software' button as 10871 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 10872 button and can be used by applications based on OpenSSL to show the 10873 relationship to the OpenSSL project. 10874 [Ralf S. Engelschall] 10875 10876 *) Remove confusing variables in function signatures in files 10877 ssl/ssl_lib.c and ssl/ssl.h. 10878 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10879 10880 *) Don't install bss_file.c under PREFIX/include/ 10881 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10882 10883 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 10884 functions that return function pointers and has support for NT specific 10885 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 10886 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 10887 unsigned to signed types: this was killing the Win32 compile. 10888 [Steve Henson] 10889 10890 *) Add new certificate file to stack functions, 10891 SSL_add_dir_cert_subjects_to_stack() and 10892 SSL_add_file_cert_subjects_to_stack(). These largely supplant 10893 SSL_load_client_CA_file(), and can be used to add multiple certs easily 10894 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 10895 This means that Apache-SSL and similar packages don't have to mess around 10896 to add as many CAs as they want to the preferred list. 10897 [Ben Laurie] 10898 10899 *) Experiment with doxygen documentation. Currently only partially applied to 10900 ssl/ssl_lib.c. 10901 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 10902 openssl.doxy as the configuration file. 10903 [Ben Laurie] 10904 10905 *) Get rid of remaining C++-style comments which strict C compilers hate. 10906 [Ralf S. Engelschall, pointed out by Carlos Amengual] 10907 10908 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 10909 compiled in by default: it has problems with large keys. 10910 [Steve Henson] 10911 10912 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 10913 DH private keys and/or callback functions which directly correspond to 10914 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 10915 is needed for applications which have to configure certificates on a 10916 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 10917 (e.g. s_server). 10918 For the RSA certificate situation is makes no difference, but 10919 for the DSA certificate situation this fixes the "no shared cipher" 10920 problem where the OpenSSL cipher selection procedure failed because the 10921 temporary keys were not overtaken from the context and the API provided 10922 no way to reconfigure them. 10923 The new functions now let applications reconfigure the stuff and they 10924 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 10925 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 10926 non-public-API function ssl_cert_instantiate() is used as a helper 10927 function and also to reduce code redundancy inside ssl_rsa.c. 10928 [Ralf S. Engelschall] 10929 10930 *) Move s_server -dcert and -dkey options out of the undocumented feature 10931 area because they are useful for the DSA situation and should be 10932 recognized by the users. 10933 [Ralf S. Engelschall] 10934 10935 *) Fix the cipher decision scheme for export ciphers: the export bits are 10936 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 10937 SSL_EXP_MASK. So, the original variable has to be used instead of the 10938 already masked variable. 10939 [Richard Levitte <levitte@stacken.kth.se>] 10940 10941 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 10942 [Richard Levitte <levitte@stacken.kth.se>] 10943 10944 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 10945 from `int' to `unsigned int' because it's a length and initialized by 10946 EVP_DigestFinal() which expects an `unsigned int *'. 10947 [Richard Levitte <levitte@stacken.kth.se>] 10948 10949 *) Don't hard-code path to Perl interpreter on shebang line of Configure 10950 script. Instead use the usual Shell->Perl transition trick. 10951 [Ralf S. Engelschall] 10952 10953 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 10954 (in addition to RSA certificates) to match the behaviour of `openssl dsa 10955 -noout -modulus' as it's already the case for `openssl rsa -noout 10956 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 10957 currently the public key is printed (a decision which was already done by 10958 `openssl dsa -modulus' in the past) which serves a similar purpose. 10959 Additionally the NO_RSA no longer completely removes the whole -modulus 10960 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 10961 now, too. 10962 [Ralf S. Engelschall] 10963 10964 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 10965 BIO. See the source (crypto/evp/bio_ok.c) for more info. 10966 [Arne Ansper <arne@ats.cyber.ee>] 10967 10968 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 10969 to be added. Now both 'req' and 'ca' can use new objects defined in the 10970 config file. 10971 [Steve Henson] 10972 10973 *) Add cool BIO that does syslog (or event log on NT). 10974 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 10975 10976 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 10977 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 10978 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 10979 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 10980 [Ben Laurie] 10981 10982 *) Add preliminary config info for new extension code. 10983 [Steve Henson] 10984 10985 *) Make RSA_NO_PADDING really use no padding. 10986 [Ulf Moeller <ulf@fitug.de>] 10987 10988 *) Generate errors when private/public key check is done. 10989 [Ben Laurie] 10990 10991 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 10992 for some CRL extensions and new objects added. 10993 [Steve Henson] 10994 10995 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 10996 key usage extension and fuller support for authority key id. 10997 [Steve Henson] 10998 10999 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 11000 padding method for RSA, which is recommended for new applications in PKCS 11001 #1 v2.0 (RFC 2437, October 1998). 11002 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 11003 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 11004 against Bleichbacher's attack on RSA. 11005 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 11006 Ben Laurie] 11007 11008 *) Updates to the new SSL compression code 11009 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11010 11011 *) Fix so that the version number in the master secret, when passed 11012 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 11013 (because the server will not accept higher), that the version number 11014 is 0x03,0x01, not 0x03,0x00 11015 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11016 11017 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 11018 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 11019 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 11020 [Steve Henson] 11021 11022 *) Support for RAW extensions where an arbitrary extension can be 11023 created by including its DER encoding. See apps/openssl.cnf for 11024 an example. 11025 [Steve Henson] 11026 11027 *) Make sure latest Perl versions don't interpret some generated C array 11028 code as Perl array code in the crypto/err/err_genc.pl script. 11029 [Lars Weber <3weber@informatik.uni-hamburg.de>] 11030 11031 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 11032 not many people have the assembler. Various Win32 compilation fixes and 11033 update to the INSTALL.W32 file with (hopefully) more accurate Win32 11034 build instructions. 11035 [Steve Henson] 11036 11037 *) Modify configure script 'Configure' to automatically create crypto/date.h 11038 file under Win32 and also build pem.h from pem.org. New script 11039 util/mkfiles.pl to create the MINFO file on environments that can't do a 11040 'make files': perl util/mkfiles.pl >MINFO should work. 11041 [Steve Henson] 11042 11043 *) Major rework of DES function declarations, in the pursuit of correctness 11044 and purity. As a result, many evil casts evaporated, and some weirdness, 11045 too. You may find this causes warnings in your code. Zapping your evil 11046 casts will probably fix them. Mostly. 11047 [Ben Laurie] 11048 11049 *) Fix for a typo in asn1.h. Bug fix to object creation script 11050 obj_dat.pl. It considered a zero in an object definition to mean 11051 "end of object": none of the objects in objects.h have any zeros 11052 so it wasn't spotted. 11053 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 11054 11055 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 11056 Masking (CBCM). In the absence of test vectors, the best I have been able 11057 to do is check that the decrypt undoes the encrypt, so far. Send me test 11058 vectors if you have them. 11059 [Ben Laurie] 11060 11061 *) Correct calculation of key length for export ciphers (too much space was 11062 allocated for null ciphers). This has not been tested! 11063 [Ben Laurie] 11064 11065 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 11066 message is now correct (it understands "crypto" and "ssl" on its 11067 command line). There is also now an "update" option. This will update 11068 the util/ssleay.num and util/libeay.num files with any new functions. 11069 If you do a: 11070 perl util/mkdef.pl crypto ssl update 11071 it will update them. 11072 [Steve Henson] 11073 11074 *) Overhauled the Perl interface (perl/*): 11075 - ported BN stuff to OpenSSL's different BN library 11076 - made the perl/ source tree CVS-aware 11077 - renamed the package from SSLeay to OpenSSL (the files still contain 11078 their history because I've copied them in the repository) 11079 - removed obsolete files (the test scripts will be replaced 11080 by better Test::Harness variants in the future) 11081 [Ralf S. Engelschall] 11082 11083 *) First cut for a very conservative source tree cleanup: 11084 1. merge various obsolete readme texts into doc/ssleay.txt 11085 where we collect the old documents and readme texts. 11086 2. remove the first part of files where I'm already sure that we no 11087 longer need them because of three reasons: either they are just temporary 11088 files which were left by Eric or they are preserved original files where 11089 I've verified that the diff is also available in the CVS via "cvs diff 11090 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 11091 the crypto/md/ stuff). 11092 [Ralf S. Engelschall] 11093 11094 *) More extension code. Incomplete support for subject and issuer alt 11095 name, issuer and authority key id. Change the i2v function parameters 11096 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 11097 what that's for :-) Fix to ASN1 macro which messed up 11098 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 11099 [Steve Henson] 11100 11101 *) Preliminary support for ENUMERATED type. This is largely copied from the 11102 INTEGER code. 11103 [Steve Henson] 11104 11105 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 11106 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11107 11108 *) Make sure `make rehash' target really finds the `openssl' program. 11109 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 11110 11111 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 11112 like to hear about it if this slows down other processors. 11113 [Ben Laurie] 11114 11115 *) Add CygWin32 platform information to Configure script. 11116 [Alan Batie <batie@aahz.jf.intel.com>] 11117 11118 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 11119 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 11120 11121 *) New program nseq to manipulate netscape certificate sequences 11122 [Steve Henson] 11123 11124 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 11125 few typos. 11126 [Steve Henson] 11127 11128 *) Fixes to BN code. Previously the default was to define BN_RECURSION 11129 but the BN code had some problems that would cause failures when 11130 doing certificate verification and some other functions. 11131 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11132 11133 *) Add ASN1 and PEM code to support netscape certificate sequences. 11134 [Steve Henson] 11135 11136 *) Add ASN1 and PEM code to support netscape certificate sequences. 11137 [Steve Henson] 11138 11139 *) Add several PKIX and private extended key usage OIDs. 11140 [Steve Henson] 11141 11142 *) Modify the 'ca' program to handle the new extension code. Modify 11143 openssl.cnf for new extension format, add comments. 11144 [Steve Henson] 11145 11146 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 11147 and add a sample to openssl.cnf so req -x509 now adds appropriate 11148 CA extensions. 11149 [Steve Henson] 11150 11151 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 11152 error code, add initial support to X509_print() and x509 application. 11153 [Steve Henson] 11154 11155 *) Takes a deep breath and start addding X509 V3 extension support code. Add 11156 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 11157 stuff is currently isolated and isn't even compiled yet. 11158 [Steve Henson] 11159 11160 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 11161 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 11162 Removed the versions check from X509 routines when loading extensions: 11163 this allows certain broken certificates that don't set the version 11164 properly to be processed. 11165 [Steve Henson] 11166 11167 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 11168 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 11169 can still be regenerated with "make depend". 11170 [Ben Laurie] 11171 11172 *) Spelling mistake in C version of CAST-128. 11173 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 11174 11175 *) Changes to the error generation code. The perl script err-code.pl 11176 now reads in the old error codes and retains the old numbers, only 11177 adding new ones if necessary. It also only changes the .err files if new 11178 codes are added. The makefiles have been modified to only insert errors 11179 when needed (to avoid needlessly modifying header files). This is done 11180 by only inserting errors if the .err file is newer than the auto generated 11181 C file. To rebuild all the error codes from scratch (the old behaviour) 11182 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 11183 or delete all the .err files. 11184 [Steve Henson] 11185 11186 *) CAST-128 was incorrectly implemented for short keys. The C version has 11187 been fixed, but is untested. The assembler versions are also fixed, but 11188 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 11189 to regenerate it if needed. 11190 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 11191 Hagino <itojun@kame.net>] 11192 11193 *) File was opened incorrectly in randfile.c. 11194 [Ulf M��ller <ulf@fitug.de>] 11195 11196 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 11197 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 11198 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 11199 al: it's just almost always a UTCTime. Note this patch adds new error 11200 codes so do a "make errors" if there are problems. 11201 [Steve Henson] 11202 11203 *) Correct Linux 1 recognition in config. 11204 [Ulf M��ller <ulf@fitug.de>] 11205 11206 *) Remove pointless MD5 hash when using DSA keys in ca. 11207 [Anonymous <nobody@replay.com>] 11208 11209 *) Generate an error if given an empty string as a cert directory. Also 11210 generate an error if handed NULL (previously returned 0 to indicate an 11211 error, but didn't set one). 11212 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 11213 11214 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 11215 [Ben Laurie] 11216 11217 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 11218 parameters. This was causing a warning which killed off the Win32 compile. 11219 [Steve Henson] 11220 11221 *) Remove C++ style comments from crypto/bn/bn_local.h. 11222 [Neil Costigan <neil.costigan@celocom.com>] 11223 11224 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 11225 based on a text string, looking up short and long names and finally 11226 "dot" format. The "dot" format stuff didn't work. Added new function 11227 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 11228 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 11229 OID is not part of the table. 11230 [Steve Henson] 11231 11232 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 11233 X509_LOOKUP_by_alias(). 11234 [Ben Laurie] 11235 11236 *) Sort openssl functions by name. 11237 [Ben Laurie] 11238 11239 *) Get the gendsa program working (hopefully) and add it to app list. Remove 11240 encryption from sample DSA keys (in case anyone is interested the password 11241 was "1234"). 11242 [Steve Henson] 11243 11244 *) Make _all_ *_free functions accept a NULL pointer. 11245 [Frans Heymans <fheymans@isaserver.be>] 11246 11247 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 11248 NULL pointers. 11249 [Anonymous <nobody@replay.com>] 11250 11251 *) s_server should send the CAfile as acceptable CAs, not its own cert. 11252 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11253 11254 *) Don't blow it for numeric -newkey arguments to apps/req. 11255 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11256 11257 *) Temp key "for export" tests were wrong in s3_srvr.c. 11258 [Anonymous <nobody@replay.com>] 11259 11260 *) Add prototype for temp key callback functions 11261 SSL_CTX_set_tmp_{rsa,dh}_callback(). 11262 [Ben Laurie] 11263 11264 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 11265 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 11266 [Steve Henson] 11267 11268 *) X509_name_add_entry() freed the wrong thing after an error. 11269 [Arne Ansper <arne@ats.cyber.ee>] 11270 11271 *) rsa_eay.c would attempt to free a NULL context. 11272 [Arne Ansper <arne@ats.cyber.ee>] 11273 11274 *) BIO_s_socket() had a broken should_retry() on Windoze. 11275 [Arne Ansper <arne@ats.cyber.ee>] 11276 11277 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 11278 [Arne Ansper <arne@ats.cyber.ee>] 11279 11280 *) Make sure the already existing X509_STORE->depth variable is initialized 11281 in X509_STORE_new(), but document the fact that this variable is still 11282 unused in the certificate verification process. 11283 [Ralf S. Engelschall] 11284 11285 *) Fix the various library and apps files to free up pkeys obtained from 11286 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 11287 [Steve Henson] 11288 11289 *) Fix reference counting in X509_PUBKEY_get(). This makes 11290 demos/maurice/example2.c work, amongst others, probably. 11291 [Steve Henson and Ben Laurie] 11292 11293 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 11294 `openssl' and second, the shortcut symlinks for the `openssl <command>' 11295 are no longer created. This way we have a single and consistent command 11296 line interface `openssl <command>', similar to `cvs <command>'. 11297 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 11298 11299 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 11300 BIT STRING wrapper always have zero unused bits. 11301 [Steve Henson] 11302 11303 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 11304 [Steve Henson] 11305 11306 *) Make the top-level INSTALL documentation easier to understand. 11307 [Paul Sutton] 11308 11309 *) Makefiles updated to exit if an error occurs in a sub-directory 11310 make (including if user presses ^C) [Paul Sutton] 11311 11312 *) Make Montgomery context stuff explicit in RSA data structure. 11313 [Ben Laurie] 11314 11315 *) Fix build order of pem and err to allow for generated pem.h. 11316 [Ben Laurie] 11317 11318 *) Fix renumbering bug in X509_NAME_delete_entry(). 11319 [Ben Laurie] 11320 11321 *) Enhanced the err-ins.pl script so it makes the error library number 11322 global and can add a library name. This is needed for external ASN1 and 11323 other error libraries. 11324 [Steve Henson] 11325 11326 *) Fixed sk_insert which never worked properly. 11327 [Steve Henson] 11328 11329 *) Fix ASN1 macros so they can handle indefinite length construted 11330 EXPLICIT tags. Some non standard certificates use these: they can now 11331 be read in. 11332 [Steve Henson] 11333 11334 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 11335 into a single doc/ssleay.txt bundle. This way the information is still 11336 preserved but no longer messes up this directory. Now it's new room for 11337 the new set of documenation files. 11338 [Ralf S. Engelschall] 11339 11340 *) SETs were incorrectly DER encoded. This was a major pain, because they 11341 shared code with SEQUENCEs, which aren't coded the same. This means that 11342 almost everything to do with SETs or SEQUENCEs has either changed name or 11343 number of arguments. 11344 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 11345 11346 *) Fix test data to work with the above. 11347 [Ben Laurie] 11348 11349 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 11350 was already fixed by Eric for 0.9.1 it seems. 11351 [Ben Laurie - pointed out by Ulf M��ller <ulf@fitug.de>] 11352 11353 *) Autodetect FreeBSD3. 11354 [Ben Laurie] 11355 11356 *) Fix various bugs in Configure. This affects the following platforms: 11357 nextstep 11358 ncr-scde 11359 unixware-2.0 11360 unixware-2.0-pentium 11361 sco5-cc. 11362 [Ben Laurie] 11363 11364 *) Eliminate generated files from CVS. Reorder tests to regenerate files 11365 before they are needed. 11366 [Ben Laurie] 11367 11368 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 11369 [Ben Laurie] 11370 11371 11372 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 11373 11374 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 11375 changed SSLeay to OpenSSL in version strings. 11376 [Ralf S. Engelschall] 11377 11378 *) Some fixups to the top-level documents. 11379 [Paul Sutton] 11380 11381 *) Fixed the nasty bug where rsaref.h was not found under compile-time 11382 because the symlink to include/ was missing. 11383 [Ralf S. Engelschall] 11384 11385 *) Incorporated the popular no-RSA/DSA-only patches 11386 which allow to compile a RSA-free SSLeay. 11387 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 11388 11389 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 11390 when "ssleay" is still not found. 11391 [Ralf S. Engelschall] 11392 11393 *) Added more platforms to Configure: Cray T3E, HPUX 11, 11394 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 11395 11396 *) Updated the README file. 11397 [Ralf S. Engelschall] 11398 11399 *) Added various .cvsignore files in the CVS repository subdirs 11400 to make a "cvs update" really silent. 11401 [Ralf S. Engelschall] 11402 11403 *) Recompiled the error-definition header files and added 11404 missing symbols to the Win32 linker tables. 11405 [Ralf S. Engelschall] 11406 11407 *) Cleaned up the top-level documents; 11408 o new files: CHANGES and LICENSE 11409 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 11410 o merged COPYRIGHT into LICENSE 11411 o removed obsolete TODO file 11412 o renamed MICROSOFT to INSTALL.W32 11413 [Ralf S. Engelschall] 11414 11415 *) Removed dummy files from the 0.9.1b source tree: 11416 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 11417 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 11418 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 11419 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 11420 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 11421 [Ralf S. Engelschall] 11422 11423 *) Added various platform portability fixes. 11424 [Mark J. Cox] 11425 11426 *) The Genesis of the OpenSSL rpject: 11427 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 11428 Young and Tim J. Hudson created while they were working for C2Net until 11429 summer 1998. 11430 [The OpenSSL Project] 11431 11432 11433 Changes between 0.9.0b and 0.9.1b [not released] 11434 11435 *) Updated a few CA certificates under certs/ 11436 [Eric A. Young] 11437 11438 *) Changed some BIGNUM api stuff. 11439 [Eric A. Young] 11440 11441 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 11442 DGUX x86, Linux Alpha, etc. 11443 [Eric A. Young] 11444 11445 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 11446 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 11447 available). 11448 [Eric A. Young] 11449 11450 *) Add -strparse option to asn1pars program which parses nested 11451 binary structures 11452 [Dr Stephen Henson <shenson@bigfoot.com>] 11453 11454 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 11455 [Eric A. Young] 11456 11457 *) DSA fix for "ca" program. 11458 [Eric A. Young] 11459 11460 *) Added "-genkey" option to "dsaparam" program. 11461 [Eric A. Young] 11462 11463 *) Added RIPE MD160 (rmd160) message digest. 11464 [Eric A. Young] 11465 11466 *) Added -a (all) option to "ssleay version" command. 11467 [Eric A. Young] 11468 11469 *) Added PLATFORM define which is the id given to Configure. 11470 [Eric A. Young] 11471 11472 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 11473 [Eric A. Young] 11474 11475 *) Extended the ASN.1 parser routines. 11476 [Eric A. Young] 11477 11478 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 11479 [Eric A. Young] 11480 11481 *) Added a BN_CTX to the BN library. 11482 [Eric A. Young] 11483 11484 *) Fixed the weak key values in DES library 11485 [Eric A. Young] 11486 11487 *) Changed API in EVP library for cipher aliases. 11488 [Eric A. Young] 11489 11490 *) Added support for RC2/64bit cipher. 11491 [Eric A. Young] 11492 11493 *) Converted the lhash library to the crypto/mem.c functions. 11494 [Eric A. Young] 11495 11496 *) Added more recognized ASN.1 object ids. 11497 [Eric A. Young] 11498 11499 *) Added more RSA padding checks for SSL/TLS. 11500 [Eric A. Young] 11501 11502 *) Added BIO proxy/filter functionality. 11503 [Eric A. Young] 11504 11505 *) Added extra_certs to SSL_CTX which can be used 11506 send extra CA certificates to the client in the CA cert chain sending 11507 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 11508 [Eric A. Young] 11509 11510 *) Now Fortezza is denied in the authentication phase because 11511 this is key exchange mechanism is not supported by SSLeay at all. 11512 [Eric A. Young] 11513 11514 *) Additional PKCS1 checks. 11515 [Eric A. Young] 11516 11517 *) Support the string "TLSv1" for all TLS v1 ciphers. 11518 [Eric A. Young] 11519 11520 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 11521 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 11522 [Eric A. Young] 11523 11524 *) Fixed a few memory leaks. 11525 [Eric A. Young] 11526 11527 *) Fixed various code and comment typos. 11528 [Eric A. Young] 11529 11530 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 11531 bytes sent in the client random. 11532 [Edward Bishop <ebishop@spyglass.com>] 11533 11534