CHANGES revision 337982
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 1.0.2o and 1.0.2p [14 Aug 2018] 11 12 *) Client DoS due to large DH parameter 13 14 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 15 malicious server can send a very large prime value to the client. This will 16 cause the client to spend an unreasonably long period of time generating a 17 key for this prime resulting in a hang until the client has finished. This 18 could be exploited in a Denial Of Service attack. 19 20 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 21 (CVE-2018-0732) 22 [Guido Vranken] 23 24 *) Cache timing vulnerability in RSA Key Generation 25 26 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 27 a cache timing side channel attack. An attacker with sufficient access to 28 mount cache timing attacks during the RSA key generation process could 29 recover the private key. 30 31 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 32 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 33 (CVE-2018-0737) 34 [Billy Brumley] 35 36 *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 37 parameter is no longer accepted, as it leads to a corrupt table. NULL 38 pem_str is reserved for alias entries only. 39 [Richard Levitte] 40 41 *) Revert blinding in ECDSA sign and instead make problematic addition 42 length-invariant. Switch even to fixed-length Montgomery multiplication. 43 [Andy Polyakov] 44 45 *) Change generating and checking of primes so that the error rate of not 46 being prime depends on the intended use based on the size of the input. 47 For larger primes this will result in more rounds of Miller-Rabin. 48 The maximal error rate for primes with more than 1080 bits is lowered 49 to 2^-128. 50 [Kurt Roeckx, Annie Yousar] 51 52 *) Increase the number of Miller-Rabin rounds for DSA key generating to 64. 53 [Kurt Roeckx] 54 55 *) Add blinding to ECDSA and DSA signatures to protect against side channel 56 attacks discovered by Keegan Ryan (NCC Group). 57 [Matt Caswell] 58 59 *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we 60 now allow empty (zero character) pass phrases. 61 [Richard Levitte] 62 63 *) Certificate time validation (X509_cmp_time) enforces stricter 64 compliance with RFC 5280. Fractional seconds and timezone offsets 65 are no longer allowed. 66 [Emilia K��sper] 67 68 Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 69 70 *) Constructed ASN.1 types with a recursive definition could exceed the stack 71 72 Constructed ASN.1 types with a recursive definition (such as can be found 73 in PKCS7) could eventually exceed the stack given malicious input with 74 excessive recursion. This could result in a Denial Of Service attack. There 75 are no such structures used within SSL/TLS that come from untrusted sources 76 so this is considered safe. 77 78 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 79 project. 80 (CVE-2018-0739) 81 [Matt Caswell] 82 83 Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 84 85 *) Read/write after SSL object in error state 86 87 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 88 mechanism. The intent was that if a fatal error occurred during a handshake 89 then OpenSSL would move into the error state and would immediately fail if 90 you attempted to continue the handshake. This works as designed for the 91 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 92 SSL_connect()), however due to a bug it does not work correctly if 93 SSL_read() or SSL_write() is called directly. In that scenario, if the 94 handshake fails then a fatal error will be returned in the initial function 95 call. If SSL_read()/SSL_write() is subsequently called by the application 96 for the same SSL object then it will succeed and the data is passed without 97 being decrypted/encrypted directly from the SSL/TLS record layer. 98 99 In order to exploit this issue an application bug would have to be present 100 that resulted in a call to SSL_read()/SSL_write() being issued after having 101 already received a fatal error. 102 103 This issue was reported to OpenSSL by David Benjamin (Google). 104 (CVE-2017-3737) 105 [Matt Caswell] 106 107 *) rsaz_1024_mul_avx2 overflow bug on x86_64 108 109 There is an overflow bug in the AVX2 Montgomery multiplication procedure 110 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 111 Analysis suggests that attacks against RSA and DSA as a result of this 112 defect would be very difficult to perform and are not believed likely. 113 Attacks against DH1024 are considered just feasible, because most of the 114 work necessary to deduce information about a private key may be performed 115 offline. The amount of resources required for such an attack would be 116 significant. However, for an attack on TLS to be meaningful, the server 117 would have to share the DH1024 private key among multiple clients, which is 118 no longer an option since CVE-2016-0701. 119 120 This only affects processors that support the AVX2 but not ADX extensions 121 like Intel Haswell (4th generation). 122 123 This issue was reported to OpenSSL by David Benjamin (Google). The issue 124 was originally found via the OSS-Fuzz project. 125 (CVE-2017-3738) 126 [Andy Polyakov] 127 128 Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 129 130 *) bn_sqrx8x_internal carry bug on x86_64 131 132 There is a carry propagating bug in the x86_64 Montgomery squaring 133 procedure. No EC algorithms are affected. Analysis suggests that attacks 134 against RSA and DSA as a result of this defect would be very difficult to 135 perform and are not believed likely. Attacks against DH are considered just 136 feasible (although very difficult) because most of the work necessary to 137 deduce information about a private key may be performed offline. The amount 138 of resources required for such an attack would be very significant and 139 likely only accessible to a limited number of attackers. An attacker would 140 additionally need online access to an unpatched system using the target 141 private key in a scenario with persistent DH parameters and a private 142 key that is shared between multiple clients. 143 144 This only affects processors that support the BMI1, BMI2 and ADX extensions 145 like Intel Broadwell (5th generation) and later or AMD Ryzen. 146 147 This issue was reported to OpenSSL by the OSS-Fuzz project. 148 (CVE-2017-3736) 149 [Andy Polyakov] 150 151 *) Malformed X.509 IPAddressFamily could cause OOB read 152 153 If an X.509 certificate has a malformed IPAddressFamily extension, 154 OpenSSL could do a one-byte buffer overread. The most likely result 155 would be an erroneous display of the certificate in text format. 156 157 This issue was reported to OpenSSL by the OSS-Fuzz project. 158 (CVE-2017-3735) 159 [Rich Salz] 160 161 Changes between 1.0.2k and 1.0.2l [25 May 2017] 162 163 *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 164 platform rather than 'mingw'. 165 [Richard Levitte] 166 167 Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 168 169 *) Truncated packet could crash via OOB read 170 171 If one side of an SSL/TLS path is running on a 32-bit host and a specific 172 cipher is being used, then a truncated packet can cause that host to 173 perform an out-of-bounds read, usually resulting in a crash. 174 175 This issue was reported to OpenSSL by Robert ��wi��cki of Google. 176 (CVE-2017-3731) 177 [Andy Polyakov] 178 179 *) BN_mod_exp may produce incorrect results on x86_64 180 181 There is a carry propagating bug in the x86_64 Montgomery squaring 182 procedure. No EC algorithms are affected. Analysis suggests that attacks 183 against RSA and DSA as a result of this defect would be very difficult to 184 perform and are not believed likely. Attacks against DH are considered just 185 feasible (although very difficult) because most of the work necessary to 186 deduce information about a private key may be performed offline. The amount 187 of resources required for such an attack would be very significant and 188 likely only accessible to a limited number of attackers. An attacker would 189 additionally need online access to an unpatched system using the target 190 private key in a scenario with persistent DH parameters and a private 191 key that is shared between multiple clients. For example this can occur by 192 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 193 similar to CVE-2015-3193 but must be treated as a separate problem. 194 195 This issue was reported to OpenSSL by the OSS-Fuzz project. 196 (CVE-2017-3732) 197 [Andy Polyakov] 198 199 *) Montgomery multiplication may produce incorrect results 200 201 There is a carry propagating bug in the Broadwell-specific Montgomery 202 multiplication procedure that handles input lengths divisible by, but 203 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 204 and DH private keys are impossible. This is because the subroutine in 205 question is not used in operations with the private key itself and an input 206 of the attacker's direct choice. Otherwise the bug can manifest itself as 207 transient authentication and key negotiation failures or reproducible 208 erroneous outcome of public-key operations with specially crafted input. 209 Among EC algorithms only Brainpool P-512 curves are affected and one 210 presumably can attack ECDH key negotiation. Impact was not analyzed in 211 detail, because pre-requisites for attack are considered unlikely. Namely 212 multiple clients have to choose the curve in question and the server has to 213 share the private key among them, neither of which is default behaviour. 214 Even then only clients that chose the curve will be affected. 215 216 This issue was publicly reported as transient failures and was not 217 initially recognized as a security issue. Thanks to Richard Morgan for 218 providing reproducible case. 219 (CVE-2016-7055) 220 [Andy Polyakov] 221 222 *) OpenSSL now fails if it receives an unrecognised record type in TLS1.0 223 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 224 prevent issues where no progress is being made and the peer continually 225 sends unrecognised record types, using up resources processing them. 226 [Matt Caswell] 227 228 Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 229 230 *) Missing CRL sanity check 231 232 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 233 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 234 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 235 236 This issue only affects the OpenSSL 1.0.2i 237 (CVE-2016-7052) 238 [Matt Caswell] 239 240 Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 241 242 *) OCSP Status Request extension unbounded memory growth 243 244 A malicious client can send an excessively large OCSP Status Request 245 extension. If that client continually requests renegotiation, sending a 246 large OCSP Status Request extension each time, then there will be unbounded 247 memory growth on the server. This will eventually lead to a Denial Of 248 Service attack through memory exhaustion. Servers with a default 249 configuration are vulnerable even if they do not support OCSP. Builds using 250 the "no-ocsp" build time option are not affected. 251 252 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 253 (CVE-2016-6304) 254 [Matt Caswell] 255 256 *) In order to mitigate the SWEET32 attack, the DES ciphers were moved from 257 HIGH to MEDIUM. 258 259 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 260 Leurent (INRIA) 261 (CVE-2016-2183) 262 [Rich Salz] 263 264 *) OOB write in MDC2_Update() 265 266 An overflow can occur in MDC2_Update() either if called directly or 267 through the EVP_DigestUpdate() function using MDC2. If an attacker 268 is able to supply very large amounts of input data after a previous 269 call to EVP_EncryptUpdate() with a partial block then a length check 270 can overflow resulting in a heap corruption. 271 272 The amount of data needed is comparable to SIZE_MAX which is impractical 273 on most platforms. 274 275 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 276 (CVE-2016-6303) 277 [Stephen Henson] 278 279 *) Malformed SHA512 ticket DoS 280 281 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 282 DoS attack where a malformed ticket will result in an OOB read which will 283 ultimately crash. 284 285 The use of SHA512 in TLS session tickets is comparatively rare as it requires 286 a custom server callback and ticket lookup mechanism. 287 288 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 289 (CVE-2016-6302) 290 [Stephen Henson] 291 292 *) OOB write in BN_bn2dec() 293 294 The function BN_bn2dec() does not check the return value of BN_div_word(). 295 This can cause an OOB write if an application uses this function with an 296 overly large BIGNUM. This could be a problem if an overly large certificate 297 or CRL is printed out from an untrusted source. TLS is not affected because 298 record limits will reject an oversized certificate before it is parsed. 299 300 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 301 (CVE-2016-2182) 302 [Stephen Henson] 303 304 *) OOB read in TS_OBJ_print_bio() 305 306 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 307 the total length the OID text representation would use and not the amount 308 of data written. This will result in OOB reads when large OIDs are 309 presented. 310 311 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 312 (CVE-2016-2180) 313 [Stephen Henson] 314 315 *) Pointer arithmetic undefined behaviour 316 317 Avoid some undefined pointer arithmetic 318 319 A common idiom in the codebase is to check limits in the following manner: 320 "p + len > limit" 321 322 Where "p" points to some malloc'd data of SIZE bytes and 323 limit == p + SIZE 324 325 "len" here could be from some externally supplied data (e.g. from a TLS 326 message). 327 328 The rules of C pointer arithmetic are such that "p + len" is only well 329 defined where len <= SIZE. Therefore the above idiom is actually 330 undefined behaviour. 331 332 For example this could cause problems if some malloc implementation 333 provides an address for "p" such that "p + len" actually overflows for 334 values of len that are too big and therefore p + len < limit. 335 336 This issue was reported to OpenSSL by Guido Vranken 337 (CVE-2016-2177) 338 [Matt Caswell] 339 340 *) Constant time flag not preserved in DSA signing 341 342 Operations in the DSA signing algorithm should run in constant time in 343 order to avoid side channel attacks. A flaw in the OpenSSL DSA 344 implementation means that a non-constant time codepath is followed for 345 certain operations. This has been demonstrated through a cache-timing 346 attack to be sufficient for an attacker to recover the private DSA key. 347 348 This issue was reported by C��sar Pereida (Aalto University), Billy Brumley 349 (Tampere University of Technology), and Yuval Yarom (The University of 350 Adelaide and NICTA). 351 (CVE-2016-2178) 352 [C��sar Pereida] 353 354 *) DTLS buffered message DoS 355 356 In a DTLS connection where handshake messages are delivered out-of-order 357 those messages that OpenSSL is not yet ready to process will be buffered 358 for later use. Under certain circumstances, a flaw in the logic means that 359 those messages do not get removed from the buffer even though the handshake 360 has been completed. An attacker could force up to approx. 15 messages to 361 remain in the buffer when they are no longer required. These messages will 362 be cleared when the DTLS connection is closed. The default maximum size for 363 a message is 100k. Therefore the attacker could force an additional 1500k 364 to be consumed per connection. By opening many simulataneous connections an 365 attacker could cause a DoS attack through memory exhaustion. 366 367 This issue was reported to OpenSSL by Quan Luo. 368 (CVE-2016-2179) 369 [Matt Caswell] 370 371 *) DTLS replay protection DoS 372 373 A flaw in the DTLS replay attack protection mechanism means that records 374 that arrive for future epochs update the replay protection "window" before 375 the MAC for the record has been validated. This could be exploited by an 376 attacker by sending a record for the next epoch (which does not have to 377 decrypt or have a valid MAC), with a very large sequence number. This means 378 that all subsequent legitimate packets are dropped causing a denial of 379 service for a specific DTLS connection. 380 381 This issue was reported to OpenSSL by the OCAP audit team. 382 (CVE-2016-2181) 383 [Matt Caswell] 384 385 *) Certificate message OOB reads 386 387 In OpenSSL 1.0.2 and earlier some missing message length checks can result 388 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 389 theoretical DoS risk but this has not been observed in practice on common 390 platforms. 391 392 The messages affected are client certificate, client certificate request 393 and server certificate. As a result the attack can only be performed 394 against a client or a server which enables client authentication. 395 396 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 397 (CVE-2016-6306) 398 [Stephen Henson] 399 400 Changes between 1.0.2g and 1.0.2h [3 May 2016] 401 402 *) Prevent padding oracle in AES-NI CBC MAC check 403 404 A MITM attacker can use a padding oracle attack to decrypt traffic 405 when the connection uses an AES CBC cipher and the server support 406 AES-NI. 407 408 This issue was introduced as part of the fix for Lucky 13 padding 409 attack (CVE-2013-0169). The padding check was rewritten to be in 410 constant time by making sure that always the same bytes are read and 411 compared against either the MAC or padding bytes. But it no longer 412 checked that there was enough data to have both the MAC and padding 413 bytes. 414 415 This issue was reported by Juraj Somorovsky using TLS-Attacker. 416 (CVE-2016-2107) 417 [Kurt Roeckx] 418 419 *) Fix EVP_EncodeUpdate overflow 420 421 An overflow can occur in the EVP_EncodeUpdate() function which is used for 422 Base64 encoding of binary data. If an attacker is able to supply very large 423 amounts of input data then a length check can overflow resulting in a heap 424 corruption. 425 426 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 427 the PEM_write_bio* family of functions. These are mainly used within the 428 OpenSSL command line applications, so any application which processes data 429 from an untrusted source and outputs it as a PEM file should be considered 430 vulnerable to this issue. User applications that call these APIs directly 431 with large amounts of untrusted data may also be vulnerable. 432 433 This issue was reported by Guido Vranken. 434 (CVE-2016-2105) 435 [Matt Caswell] 436 437 *) Fix EVP_EncryptUpdate overflow 438 439 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 440 is able to supply very large amounts of input data after a previous call to 441 EVP_EncryptUpdate() with a partial block then a length check can overflow 442 resulting in a heap corruption. Following an analysis of all OpenSSL 443 internal usage of the EVP_EncryptUpdate() function all usage is one of two 444 forms. The first form is where the EVP_EncryptUpdate() call is known to be 445 the first called function after an EVP_EncryptInit(), and therefore that 446 specific call must be safe. The second form is where the length passed to 447 EVP_EncryptUpdate() can be seen from the code to be some small value and 448 therefore there is no possibility of an overflow. Since all instances are 449 one of these two forms, it is believed that there can be no overflows in 450 internal code due to this problem. It should be noted that 451 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 452 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 453 of these calls have also been analysed too and it is believed there are no 454 instances in internal usage where an overflow could occur. 455 456 This issue was reported by Guido Vranken. 457 (CVE-2016-2106) 458 [Matt Caswell] 459 460 *) Prevent ASN.1 BIO excessive memory allocation 461 462 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 463 a short invalid encoding can casuse allocation of large amounts of memory 464 potentially consuming excessive resources or exhausting memory. 465 466 Any application parsing untrusted data through d2i BIO functions is 467 affected. The memory based functions such as d2i_X509() are *not* affected. 468 Since the memory based functions are used by the TLS library, TLS 469 applications are not affected. 470 471 This issue was reported by Brian Carpenter. 472 (CVE-2016-2109) 473 [Stephen Henson] 474 475 *) EBCDIC overread 476 477 ASN1 Strings that are over 1024 bytes can cause an overread in applications 478 using the X509_NAME_oneline() function on EBCDIC systems. This could result 479 in arbitrary stack data being returned in the buffer. 480 481 This issue was reported by Guido Vranken. 482 (CVE-2016-2176) 483 [Matt Caswell] 484 485 *) Modify behavior of ALPN to invoke callback after SNI/servername 486 callback, such that updates to the SSL_CTX affect ALPN. 487 [Todd Short] 488 489 *) Remove LOW from the DEFAULT cipher list. This removes singles DES from the 490 default. 491 [Kurt Roeckx] 492 493 *) Only remove the SSLv2 methods with the no-ssl2-method option. When the 494 methods are enabled and ssl2 is disabled the methods return NULL. 495 [Kurt Roeckx] 496 497 Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 498 499 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 500 Builds that are not configured with "enable-weak-ssl-ciphers" will not 501 provide any "EXPORT" or "LOW" strength ciphers. 502 [Viktor Dukhovni] 503 504 * Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 505 is by default disabled at build-time. Builds that are not configured with 506 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 507 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 508 will need to explicitly call either of: 509 510 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 511 or 512 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 513 514 as appropriate. Even if either of those is used, or the application 515 explicitly uses the version-specific SSLv2_method() or its client and 516 server variants, SSLv2 ciphers vulnerable to exhaustive search key 517 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 518 ciphers, and SSLv2 56-bit DES are no longer available. 519 (CVE-2016-0800) 520 [Viktor Dukhovni] 521 522 *) Fix a double-free in DSA code 523 524 A double free bug was discovered when OpenSSL parses malformed DSA private 525 keys and could lead to a DoS attack or memory corruption for applications 526 that receive DSA private keys from untrusted sources. This scenario is 527 considered rare. 528 529 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 530 libFuzzer. 531 (CVE-2016-0705) 532 [Stephen Henson] 533 534 *) Disable SRP fake user seed to address a server memory leak. 535 536 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 537 538 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 539 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 540 was changed to ignore the "fake user" SRP seed, even if the seed 541 is configured. 542 543 Users should use SRP_VBASE_get1_by_user instead. Note that in 544 SRP_VBASE_get1_by_user, caller must free the returned value. Note 545 also that even though configuring the SRP seed attempts to hide 546 invalid usernames by continuing the handshake with fake 547 credentials, this behaviour is not constant time and no strong 548 guarantees are made that the handshake is indistinguishable from 549 that of a valid user. 550 (CVE-2016-0798) 551 [Emilia K��sper] 552 553 *) Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 554 555 In the BN_hex2bn function the number of hex digits is calculated using an 556 int value |i|. Later |bn_expand| is called with a value of |i * 4|. For 557 large values of |i| this can result in |bn_expand| not allocating any 558 memory because |i * 4| is negative. This can leave the internal BIGNUM data 559 field as NULL leading to a subsequent NULL ptr deref. For very large values 560 of |i|, the calculation |i * 4| could be a positive value smaller than |i|. 561 In this case memory is allocated to the internal BIGNUM data field, but it 562 is insufficiently sized leading to heap corruption. A similar issue exists 563 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 564 is ever called by user applications with very large untrusted hex/dec data. 565 This is anticipated to be a rare occurrence. 566 567 All OpenSSL internal usage of these functions use data that is not expected 568 to be untrusted, e.g. config file data or application command line 569 arguments. If user developed applications generate config file data based 570 on untrusted data then it is possible that this could also lead to security 571 consequences. This is also anticipated to be rare. 572 573 This issue was reported to OpenSSL by Guido Vranken. 574 (CVE-2016-0797) 575 [Matt Caswell] 576 577 *) Fix memory issues in BIO_*printf functions 578 579 The internal |fmtstr| function used in processing a "%s" format string in 580 the BIO_*printf functions could overflow while calculating the length of a 581 string and cause an OOB read when printing very long strings. 582 583 Additionally the internal |doapr_outch| function can attempt to write to an 584 OOB memory location (at an offset from the NULL pointer) in the event of a 585 memory allocation failure. In 1.0.2 and below this could be caused where 586 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 587 could be in processing a very long "%s" format string. Memory leaks can 588 also occur. 589 590 The first issue may mask the second issue dependent on compiler behaviour. 591 These problems could enable attacks where large amounts of untrusted data 592 is passed to the BIO_*printf functions. If applications use these functions 593 in this way then they could be vulnerable. OpenSSL itself uses these 594 functions when printing out human-readable dumps of ASN.1 data. Therefore 595 applications that print this data could be vulnerable if the data is from 596 untrusted sources. OpenSSL command line applications could also be 597 vulnerable where they print out ASN.1 data, or if untrusted data is passed 598 as command line arguments. 599 600 Libssl is not considered directly vulnerable. Additionally certificates etc 601 received via remote connections via libssl are also unlikely to be able to 602 trigger these issues because of message size limits enforced within libssl. 603 604 This issue was reported to OpenSSL Guido Vranken. 605 (CVE-2016-0799) 606 [Matt Caswell] 607 608 *) Side channel attack on modular exponentiation 609 610 A side-channel attack was found which makes use of cache-bank conflicts on 611 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 612 of RSA keys. The ability to exploit this issue is limited as it relies on 613 an attacker who has control of code in a thread running on the same 614 hyper-threaded core as the victim thread which is performing decryptions. 615 616 This issue was reported to OpenSSL by Yuval Yarom, The University of 617 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 618 Nadia Heninger, University of Pennsylvania with more information at 619 http://cachebleed.info. 620 (CVE-2016-0702) 621 [Andy Polyakov] 622 623 *) Change the req app to generate a 2048-bit RSA/DSA key by default, 624 if no keysize is specified with default_bits. This fixes an 625 omission in an earlier change that changed all RSA/DSA key generation 626 apps to use 2048 bits by default. 627 [Emilia K��sper] 628 629 Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 630 631 *) DH small subgroups 632 633 Historically OpenSSL only ever generated DH parameters based on "safe" 634 primes. More recently (in version 1.0.2) support was provided for 635 generating X9.42 style parameter files such as those required for RFC 5114 636 support. The primes used in such files may not be "safe". Where an 637 application is using DH configured with parameters based on primes that are 638 not "safe" then an attacker could use this fact to find a peer's private 639 DH exponent. This attack requires that the attacker complete multiple 640 handshakes in which the peer uses the same private DH exponent. For example 641 this could be used to discover a TLS server's private DH exponent if it's 642 reusing the private DH exponent or it's using a static DH ciphersuite. 643 644 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 645 TLS. It is not on by default. If the option is not set then the server 646 reuses the same private DH exponent for the life of the server process and 647 would be vulnerable to this attack. It is believed that many popular 648 applications do set this option and would therefore not be at risk. 649 650 The fix for this issue adds an additional check where a "q" parameter is 651 available (as is the case in X9.42 based parameters). This detects the 652 only known attack, and is the only possible defense for static DH 653 ciphersuites. This could have some performance impact. 654 655 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 656 default and cannot be disabled. This could have some performance impact. 657 658 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 659 (CVE-2016-0701) 660 [Matt Caswell] 661 662 *) SSLv2 doesn't block disabled ciphers 663 664 A malicious client can negotiate SSLv2 ciphers that have been disabled on 665 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 666 been disabled, provided that the SSLv2 protocol was not also disabled via 667 SSL_OP_NO_SSLv2. 668 669 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 670 and Sebastian Schinzel. 671 (CVE-2015-3197) 672 [Viktor Dukhovni] 673 674 *) Reject DH handshakes with parameters shorter than 1024 bits. 675 [Kurt Roeckx] 676 677 Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 678 679 *) BN_mod_exp may produce incorrect results on x86_64 680 681 There is a carry propagating bug in the x86_64 Montgomery squaring 682 procedure. No EC algorithms are affected. Analysis suggests that attacks 683 against RSA and DSA as a result of this defect would be very difficult to 684 perform and are not believed likely. Attacks against DH are considered just 685 feasible (although very difficult) because most of the work necessary to 686 deduce information about a private key may be performed offline. The amount 687 of resources required for such an attack would be very significant and 688 likely only accessible to a limited number of attackers. An attacker would 689 additionally need online access to an unpatched system using the target 690 private key in a scenario with persistent DH parameters and a private 691 key that is shared between multiple clients. For example this can occur by 692 default in OpenSSL DHE based SSL/TLS ciphersuites. 693 694 This issue was reported to OpenSSL by Hanno B��ck. 695 (CVE-2015-3193) 696 [Andy Polyakov] 697 698 *) Certificate verify crash with missing PSS parameter 699 700 The signature verification routines will crash with a NULL pointer 701 dereference if presented with an ASN.1 signature using the RSA PSS 702 algorithm and absent mask generation function parameter. Since these 703 routines are used to verify certificate signature algorithms this can be 704 used to crash any certificate verification operation and exploited in a 705 DoS attack. Any application which performs certificate verification is 706 vulnerable including OpenSSL clients and servers which enable client 707 authentication. 708 709 This issue was reported to OpenSSL by Lo��c Jonas Etienne (Qnective AG). 710 (CVE-2015-3194) 711 [Stephen Henson] 712 713 *) X509_ATTRIBUTE memory leak 714 715 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 716 memory. This structure is used by the PKCS#7 and CMS routines so any 717 application which reads PKCS#7 or CMS data from untrusted sources is 718 affected. SSL/TLS is not affected. 719 720 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 721 libFuzzer. 722 (CVE-2015-3195) 723 [Stephen Henson] 724 725 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 726 This changes the decoding behaviour for some invalid messages, 727 though the change is mostly in the more lenient direction, and 728 legacy behaviour is preserved as much as possible. 729 [Emilia K��sper] 730 731 *) In DSA_generate_parameters_ex, if the provided seed is too short, 732 use a random seed, as already documented. 733 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>] 734 735 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 736 737 *) Alternate chains certificate forgery 738 739 During certificate verfification, OpenSSL will attempt to find an 740 alternative certificate chain if the first attempt to build such a chain 741 fails. An error in the implementation of this logic can mean that an 742 attacker could cause certain checks on untrusted certificates to be 743 bypassed, such as the CA flag, enabling them to use a valid leaf 744 certificate to act as a CA and "issue" an invalid certificate. 745 746 This issue was reported to OpenSSL by Adam Langley/David Benjamin 747 (Google/BoringSSL). 748 (CVE-2015-1793) 749 [Matt Caswell] 750 751 *) Race condition handling PSK identify hint 752 753 If PSK identity hints are received by a multi-threaded client then 754 the values are wrongly updated in the parent SSL_CTX structure. This can 755 result in a race condition potentially leading to a double free of the 756 identify hint data. 757 (CVE-2015-3196) 758 [Stephen Henson] 759 760 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 761 762 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 763 incompatibility in the handling of HMAC. The previous ABI has now been 764 restored. 765 766 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 767 768 *) Malformed ECParameters causes infinite loop 769 770 When processing an ECParameters structure OpenSSL enters an infinite loop 771 if the curve specified is over a specially malformed binary polynomial 772 field. 773 774 This can be used to perform denial of service against any 775 system which processes public keys, certificate requests or 776 certificates. This includes TLS clients and TLS servers with 777 client authentication enabled. 778 779 This issue was reported to OpenSSL by Joseph Barr-Pixton. 780 (CVE-2015-1788) 781 [Andy Polyakov] 782 783 *) Exploitable out-of-bounds read in X509_cmp_time 784 785 X509_cmp_time does not properly check the length of the ASN1_TIME 786 string and can read a few bytes out of bounds. In addition, 787 X509_cmp_time accepts an arbitrary number of fractional seconds in the 788 time string. 789 790 An attacker can use this to craft malformed certificates and CRLs of 791 various sizes and potentially cause a segmentation fault, resulting in 792 a DoS on applications that verify certificates or CRLs. TLS clients 793 that verify CRLs are affected. TLS clients and servers with client 794 authentication enabled may be affected if they use custom verification 795 callbacks. 796 797 This issue was reported to OpenSSL by Robert Swiecki (Google), and 798 independently by Hanno B��ck. 799 (CVE-2015-1789) 800 [Emilia K��sper] 801 802 *) PKCS7 crash with missing EnvelopedContent 803 804 The PKCS#7 parsing code does not handle missing inner EncryptedContent 805 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 806 with missing content and trigger a NULL pointer dereference on parsing. 807 808 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 809 structures from untrusted sources are affected. OpenSSL clients and 810 servers are not affected. 811 812 This issue was reported to OpenSSL by Michal Zalewski (Google). 813 (CVE-2015-1790) 814 [Emilia K��sper] 815 816 *) CMS verify infinite loop with unknown hash function 817 818 When verifying a signedData message the CMS code can enter an infinite loop 819 if presented with an unknown hash function OID. This can be used to perform 820 denial of service against any system which verifies signedData messages using 821 the CMS code. 822 This issue was reported to OpenSSL by Johannes Bauer. 823 (CVE-2015-1792) 824 [Stephen Henson] 825 826 *) Race condition handling NewSessionTicket 827 828 If a NewSessionTicket is received by a multi-threaded client when attempting to 829 reuse a previous ticket then a race condition can occur potentially leading to 830 a double free of the ticket data. 831 (CVE-2015-1791) 832 [Matt Caswell] 833 834 *) Removed support for the two export grade static DH ciphersuites 835 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 836 were newly added (along with a number of other static DH ciphersuites) to 837 1.0.2. However the two export ones have *never* worked since they were 838 introduced. It seems strange in any case to be adding new export 839 ciphersuites, and given "logjam" it also does not seem correct to fix them. 840 [Matt Caswell] 841 842 *) Only support 256-bit or stronger elliptic curves with the 843 'ecdh_auto' setting (server) or by default (client). Of supported 844 curves, prefer P-256 (both). 845 [Emilia Kasper] 846 847 *) Reject DH handshakes with parameters shorter than 768 bits. 848 [Kurt Roeckx and Emilia Kasper] 849 850 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 851 852 *) ClientHello sigalgs DoS fix 853 854 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 855 invalid signature algorithms extension a NULL pointer dereference will 856 occur. This can be exploited in a DoS attack against the server. 857 858 This issue was was reported to OpenSSL by David Ramos of Stanford 859 University. 860 (CVE-2015-0291) 861 [Stephen Henson and Matt Caswell] 862 863 *) Multiblock corrupted pointer fix 864 865 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 866 feature only applies on 64 bit x86 architecture platforms that support AES 867 NI instructions. A defect in the implementation of "multiblock" can cause 868 OpenSSL's internal write buffer to become incorrectly set to NULL when 869 using non-blocking IO. Typically, when the user application is using a 870 socket BIO for writing, this will only result in a failed connection. 871 However if some other BIO is used then it is likely that a segmentation 872 fault will be triggered, thus enabling a potential DoS attack. 873 874 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 875 (CVE-2015-0290) 876 [Matt Caswell] 877 878 *) Segmentation fault in DTLSv1_listen fix 879 880 The DTLSv1_listen function is intended to be stateless and processes the 881 initial ClientHello from many peers. It is common for user code to loop 882 over the call to DTLSv1_listen until a valid ClientHello is received with 883 an associated cookie. A defect in the implementation of DTLSv1_listen means 884 that state is preserved in the SSL object from one invocation to the next 885 that can lead to a segmentation fault. Errors processing the initial 886 ClientHello can trigger this scenario. An example of such an error could be 887 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 888 server. 889 890 This issue was reported to OpenSSL by Per Allansson. 891 (CVE-2015-0207) 892 [Matt Caswell] 893 894 *) Segmentation fault in ASN1_TYPE_cmp fix 895 896 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 897 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 898 certificate signature algorithm consistency this can be used to crash any 899 certificate verification operation and exploited in a DoS attack. Any 900 application which performs certificate verification is vulnerable including 901 OpenSSL clients and servers which enable client authentication. 902 (CVE-2015-0286) 903 [Stephen Henson] 904 905 *) Segmentation fault for invalid PSS parameters fix 906 907 The signature verification routines will crash with a NULL pointer 908 dereference if presented with an ASN.1 signature using the RSA PSS 909 algorithm and invalid parameters. Since these routines are used to verify 910 certificate signature algorithms this can be used to crash any 911 certificate verification operation and exploited in a DoS attack. Any 912 application which performs certificate verification is vulnerable including 913 OpenSSL clients and servers which enable client authentication. 914 915 This issue was was reported to OpenSSL by Brian Carpenter. 916 (CVE-2015-0208) 917 [Stephen Henson] 918 919 *) ASN.1 structure reuse memory corruption fix 920 921 Reusing a structure in ASN.1 parsing may allow an attacker to cause 922 memory corruption via an invalid write. Such reuse is and has been 923 strongly discouraged and is believed to be rare. 924 925 Applications that parse structures containing CHOICE or ANY DEFINED BY 926 components may be affected. Certificate parsing (d2i_X509 and related 927 functions) are however not affected. OpenSSL clients and servers are 928 not affected. 929 (CVE-2015-0287) 930 [Stephen Henson] 931 932 *) PKCS7 NULL pointer dereferences fix 933 934 The PKCS#7 parsing code does not handle missing outer ContentInfo 935 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 936 missing content and trigger a NULL pointer dereference on parsing. 937 938 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 939 otherwise parse PKCS#7 structures from untrusted sources are 940 affected. OpenSSL clients and servers are not affected. 941 942 This issue was reported to OpenSSL by Michal Zalewski (Google). 943 (CVE-2015-0289) 944 [Emilia K��sper] 945 946 *) DoS via reachable assert in SSLv2 servers fix 947 948 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 949 servers that both support SSLv2 and enable export cipher suites by sending 950 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 951 952 This issue was discovered by Sean Burford (Google) and Emilia K��sper 953 (OpenSSL development team). 954 (CVE-2015-0293) 955 [Emilia K��sper] 956 957 *) Empty CKE with client auth and DHE fix 958 959 If client auth is used then a server can seg fault in the event of a DHE 960 ciphersuite being selected and a zero length ClientKeyExchange message 961 being sent by the client. This could be exploited in a DoS attack. 962 (CVE-2015-1787) 963 [Matt Caswell] 964 965 *) Handshake with unseeded PRNG fix 966 967 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 968 with an unseeded PRNG. The conditions are: 969 - The client is on a platform where the PRNG has not been seeded 970 automatically, and the user has not seeded manually 971 - A protocol specific client method version has been used (i.e. not 972 SSL_client_methodv23) 973 - A ciphersuite is used that does not require additional random data from 974 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 975 976 If the handshake succeeds then the client random that has been used will 977 have been generated from a PRNG with insufficient entropy and therefore the 978 output may be predictable. 979 980 For example using the following command with an unseeded openssl will 981 succeed on an unpatched platform: 982 983 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 984 (CVE-2015-0285) 985 [Matt Caswell] 986 987 *) Use After Free following d2i_ECPrivatekey error fix 988 989 A malformed EC private key file consumed via the d2i_ECPrivateKey function 990 could cause a use after free condition. This, in turn, could cause a double 991 free in several private key parsing functions (such as d2i_PrivateKey 992 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 993 for applications that receive EC private keys from untrusted 994 sources. This scenario is considered rare. 995 996 This issue was discovered by the BoringSSL project and fixed in their 997 commit 517073cd4b. 998 (CVE-2015-0209) 999 [Matt Caswell] 1000 1001 *) X509_to_X509_REQ NULL pointer deref fix 1002 1003 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 1004 the certificate key is invalid. This function is rarely used in practice. 1005 1006 This issue was discovered by Brian Carpenter. 1007 (CVE-2015-0288) 1008 [Stephen Henson] 1009 1010 *) Removed the export ciphers from the DEFAULT ciphers 1011 [Kurt Roeckx] 1012 1013 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 1014 1015 *) Change RSA and DH/DSA key generation apps to generate 2048-bit 1016 keys by default. 1017 [Kurt Roeckx] 1018 1019 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 1020 ARMv5 through ARMv8, as opposite to "locking" it to single one. 1021 So far those who have to target multiple plaforms would compromise 1022 and argue that binary targeting say ARMv5 would still execute on 1023 ARMv8. "Universal" build resolves this compromise by providing 1024 near-optimal performance even on newer platforms. 1025 [Andy Polyakov] 1026 1027 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 1028 (other platforms pending). 1029 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 1030 1031 *) Add support for the SignedCertificateTimestampList certificate and 1032 OCSP response extensions from RFC6962. 1033 [Rob Stradling] 1034 1035 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 1036 for corner cases. (Certain input points at infinity could lead to 1037 bogus results, with non-infinity inputs mapped to infinity too.) 1038 [Bodo Moeller] 1039 1040 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 1041 This covers AES, SHA256/512 and GHASH. "Initial" means that most 1042 common cases are optimized and there still is room for further 1043 improvements. Vector Permutation AES for Altivec is also added. 1044 [Andy Polyakov] 1045 1046 *) Add support for little-endian ppc64 Linux target. 1047 [Marcelo Cerri (IBM)] 1048 1049 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 1050 SHA1, SHA256 and GHASH. "Initial" means that most common cases 1051 are optimized and there still is room for further improvements. 1052 Both 32- and 64-bit modes are supported. 1053 [Andy Polyakov, Ard Biesheuvel (Linaro)] 1054 1055 *) Improved ARMv7 NEON support. 1056 [Andy Polyakov] 1057 1058 *) Support for SPARC Architecture 2011 crypto extensions, first 1059 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 1060 SHA256/512, MD5, GHASH and modular exponentiation. 1061 [Andy Polyakov, David Miller] 1062 1063 *) Accelerated modular exponentiation for Intel processors, a.k.a. 1064 RSAZ. 1065 [Shay Gueron & Vlad Krasnov (Intel Corp)] 1066 1067 *) Support for new and upcoming Intel processors, including AVX2, 1068 BMI and SHA ISA extensions. This includes additional "stitched" 1069 implementations, AESNI-SHA256 and GCM, and multi-buffer support 1070 for TLS encrypt. 1071 1072 This work was sponsored by Intel Corp. 1073 [Andy Polyakov] 1074 1075 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 1076 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 1077 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 1078 [Steve Henson] 1079 1080 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 1081 this fixes a limiation in previous versions of OpenSSL. 1082 [Steve Henson] 1083 1084 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 1085 MGF1 digest and OAEP label. 1086 [Steve Henson] 1087 1088 *) Add EVP support for key wrapping algorithms, to avoid problems with 1089 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 1090 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 1091 algorithms and include tests cases. 1092 [Steve Henson] 1093 1094 *) Add functions to allocate and set the fields of an ECDSA_METHOD 1095 structure. 1096 [Douglas E. Engert, Steve Henson] 1097 1098 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 1099 difference in days and seconds between two tm or ASN1_TIME structures. 1100 [Steve Henson] 1101 1102 *) Add -rev test option to s_server to just reverse order of characters 1103 received by client and send back to server. Also prints an abbreviated 1104 summary of the connection parameters. 1105 [Steve Henson] 1106 1107 *) New option -brief for s_client and s_server to print out a brief summary 1108 of connection parameters. 1109 [Steve Henson] 1110 1111 *) Add callbacks for arbitrary TLS extensions. 1112 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 1113 1114 *) New option -crl_download in several openssl utilities to download CRLs 1115 from CRLDP extension in certificates. 1116 [Steve Henson] 1117 1118 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 1119 [Steve Henson] 1120 1121 *) New function X509_CRL_diff to generate a delta CRL from the difference 1122 of two full CRLs. Add support to "crl" utility. 1123 [Steve Henson] 1124 1125 *) New functions to set lookup_crls function and to retrieve 1126 X509_STORE from X509_STORE_CTX. 1127 [Steve Henson] 1128 1129 *) Print out deprecated issuer and subject unique ID fields in 1130 certificates. 1131 [Steve Henson] 1132 1133 *) Extend OCSP I/O functions so they can be used for simple general purpose 1134 HTTP as well as OCSP. New wrapper function which can be used to download 1135 CRLs using the OCSP API. 1136 [Steve Henson] 1137 1138 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 1139 [Steve Henson] 1140 1141 *) SSL_CONF* functions. These provide a common framework for application 1142 configuration using configuration files or command lines. 1143 [Steve Henson] 1144 1145 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 1146 message callback and prints the results. Needs compile time option 1147 "enable-ssl-trace". New options to s_client and s_server to enable 1148 tracing. 1149 [Steve Henson] 1150 1151 *) New ctrl and macro to retrieve supported points extensions. 1152 Print out extension in s_server and s_client. 1153 [Steve Henson] 1154 1155 *) New functions to retrieve certificate signature and signature 1156 OID NID. 1157 [Steve Henson] 1158 1159 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 1160 client to OpenSSL. 1161 [Steve Henson] 1162 1163 *) New Suite B modes for TLS code. These use and enforce the requirements 1164 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 1165 only use Suite B curves. The Suite B modes can be set by using the 1166 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 1167 [Steve Henson] 1168 1169 *) New chain verification flags for Suite B levels of security. Check 1170 algorithms are acceptable when flags are set in X509_verify_cert. 1171 [Steve Henson] 1172 1173 *) Make tls1_check_chain return a set of flags indicating checks passed 1174 by a certificate chain. Add additional tests to handle client 1175 certificates: checks for matching certificate type and issuer name 1176 comparison. 1177 [Steve Henson] 1178 1179 *) If an attempt is made to use a signature algorithm not in the peer 1180 preference list abort the handshake. If client has no suitable 1181 signature algorithms in response to a certificate request do not 1182 use the certificate. 1183 [Steve Henson] 1184 1185 *) If server EC tmp key is not in client preference list abort handshake. 1186 [Steve Henson] 1187 1188 *) Add support for certificate stores in CERT structure. This makes it 1189 possible to have different stores per SSL structure or one store in 1190 the parent SSL_CTX. Include distint stores for certificate chain 1191 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 1192 to build and store a certificate chain in CERT structure: returing 1193 an error if the chain cannot be built: this will allow applications 1194 to test if a chain is correctly configured. 1195 1196 Note: if the CERT based stores are not set then the parent SSL_CTX 1197 store is used to retain compatibility with existing behaviour. 1198 1199 [Steve Henson] 1200 1201 *) New function ssl_set_client_disabled to set a ciphersuite disabled 1202 mask based on the current session, check mask when sending client 1203 hello and checking the requested ciphersuite. 1204 [Steve Henson] 1205 1206 *) New ctrls to retrieve and set certificate types in a certificate 1207 request message. Print out received values in s_client. If certificate 1208 types is not set with custom values set sensible values based on 1209 supported signature algorithms. 1210 [Steve Henson] 1211 1212 *) Support for distinct client and server supported signature algorithms. 1213 [Steve Henson] 1214 1215 *) Add certificate callback. If set this is called whenever a certificate 1216 is required by client or server. An application can decide which 1217 certificate chain to present based on arbitrary criteria: for example 1218 supported signature algorithms. Add very simple example to s_server. 1219 This fixes many of the problems and restrictions of the existing client 1220 certificate callback: for example you can now clear an existing 1221 certificate and specify the whole chain. 1222 [Steve Henson] 1223 1224 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 1225 the certificate can be used for (if anything). Set valid_flags field 1226 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 1227 to have similar checks in it. 1228 1229 Add new "cert_flags" field to CERT structure and include a "strict mode". 1230 This enforces some TLS certificate requirements (such as only permitting 1231 certificate signature algorithms contained in the supported algorithms 1232 extension) which some implementations ignore: this option should be used 1233 with caution as it could cause interoperability issues. 1234 [Steve Henson] 1235 1236 *) Update and tidy signature algorithm extension processing. Work out 1237 shared signature algorithms based on preferences and peer algorithms 1238 and print them out in s_client and s_server. Abort handshake if no 1239 shared signature algorithms. 1240 [Steve Henson] 1241 1242 *) Add new functions to allow customised supported signature algorithms 1243 for SSL and SSL_CTX structures. Add options to s_client and s_server 1244 to support them. 1245 [Steve Henson] 1246 1247 *) New function SSL_certs_clear() to delete all references to certificates 1248 from an SSL structure. Before this once a certificate had been added 1249 it couldn't be removed. 1250 [Steve Henson] 1251 1252 *) Integrate hostname, email address and IP address checking with certificate 1253 verification. New verify options supporting checking in opensl utility. 1254 [Steve Henson] 1255 1256 *) Fixes and wildcard matching support to hostname and email checking 1257 functions. Add manual page. 1258 [Florian Weimer (Red Hat Product Security Team)] 1259 1260 *) New functions to check a hostname email or IP address against a 1261 certificate. Add options x509 utility to print results of checks against 1262 a certificate. 1263 [Steve Henson] 1264 1265 *) Fix OCSP checking. 1266 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 1267 1268 *) Initial experimental support for explicitly trusted non-root CAs. 1269 OpenSSL still tries to build a complete chain to a root but if an 1270 intermediate CA has a trust setting included that is used. The first 1271 setting is used: whether to trust (e.g., -addtrust option to the x509 1272 utility) or reject. 1273 [Steve Henson] 1274 1275 *) Add -trusted_first option which attempts to find certificates in the 1276 trusted store even if an untrusted chain is also supplied. 1277 [Steve Henson] 1278 1279 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 1280 platform support for Linux and Android. 1281 [Andy Polyakov] 1282 1283 *) Support for linux-x32, ILP32 environment in x86_64 framework. 1284 [Andy Polyakov] 1285 1286 *) Experimental multi-implementation support for FIPS capable OpenSSL. 1287 When in FIPS mode the approved implementations are used as normal, 1288 when not in FIPS mode the internal unapproved versions are used instead. 1289 This means that the FIPS capable OpenSSL isn't forced to use the 1290 (often lower perfomance) FIPS implementations outside FIPS mode. 1291 [Steve Henson] 1292 1293 *) Transparently support X9.42 DH parameters when calling 1294 PEM_read_bio_DHparameters. This means existing applications can handle 1295 the new parameter format automatically. 1296 [Steve Henson] 1297 1298 *) Initial experimental support for X9.42 DH parameter format: mainly 1299 to support use of 'q' parameter for RFC5114 parameters. 1300 [Steve Henson] 1301 1302 *) Add DH parameters from RFC5114 including test data to dhtest. 1303 [Steve Henson] 1304 1305 *) Support for automatic EC temporary key parameter selection. If enabled 1306 the most preferred EC parameters are automatically used instead of 1307 hardcoded fixed parameters. Now a server just has to call: 1308 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 1309 support ECDH and use the most appropriate parameters. 1310 [Steve Henson] 1311 1312 *) Enhance and tidy EC curve and point format TLS extension code. Use 1313 static structures instead of allocation if default values are used. 1314 New ctrls to set curves we wish to support and to retrieve shared curves. 1315 Print out shared curves in s_server. New options to s_server and s_client 1316 to set list of supported curves. 1317 [Steve Henson] 1318 1319 *) New ctrls to retrieve supported signature algorithms and 1320 supported curve values as an array of NIDs. Extend openssl utility 1321 to print out received values. 1322 [Steve Henson] 1323 1324 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 1325 between NIDs and the more common NIST names such as "P-256". Enhance 1326 ecparam utility and ECC method to recognise the NIST names for curves. 1327 [Steve Henson] 1328 1329 *) Enhance SSL/TLS certificate chain handling to support different 1330 chains for each certificate instead of one chain in the parent SSL_CTX. 1331 [Steve Henson] 1332 1333 *) Support for fixed DH ciphersuite client authentication: where both 1334 server and client use DH certificates with common parameters. 1335 [Steve Henson] 1336 1337 *) Support for fixed DH ciphersuites: those requiring DH server 1338 certificates. 1339 [Steve Henson] 1340 1341 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 1342 the certificate. 1343 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 1344 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 1345 X509_CINF_get_signature were reverted post internal team review. 1346 1347 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 1348 1349 *) Build fixes for the Windows and OpenVMS platforms 1350 [Matt Caswell and Richard Levitte] 1351 1352 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 1353 1354 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 1355 message can cause a segmentation fault in OpenSSL due to a NULL pointer 1356 dereference. This could lead to a Denial Of Service attack. Thanks to 1357 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 1358 (CVE-2014-3571) 1359 [Steve Henson] 1360 1361 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 1362 dtls1_buffer_record function under certain conditions. In particular this 1363 could occur if an attacker sent repeated DTLS records with the same 1364 sequence number but for the next epoch. The memory leak could be exploited 1365 by an attacker in a Denial of Service attack through memory exhaustion. 1366 Thanks to Chris Mueller for reporting this issue. 1367 (CVE-2015-0206) 1368 [Matt Caswell] 1369 1370 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 1371 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 1372 method would be set to NULL which could later result in a NULL pointer 1373 dereference. Thanks to Frank Schmirler for reporting this issue. 1374 (CVE-2014-3569) 1375 [Kurt Roeckx] 1376 1377 *) Abort handshake if server key exchange message is omitted for ephemeral 1378 ECDH ciphersuites. 1379 1380 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 1381 reporting this issue. 1382 (CVE-2014-3572) 1383 [Steve Henson] 1384 1385 *) Remove non-export ephemeral RSA code on client and server. This code 1386 violated the TLS standard by allowing the use of temporary RSA keys in 1387 non-export ciphersuites and could be used by a server to effectively 1388 downgrade the RSA key length used to a value smaller than the server 1389 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 1390 INRIA or reporting this issue. 1391 (CVE-2015-0204) 1392 [Steve Henson] 1393 1394 *) Fixed issue where DH client certificates are accepted without verification. 1395 An OpenSSL server will accept a DH certificate for client authentication 1396 without the certificate verify message. This effectively allows a client to 1397 authenticate without the use of a private key. This only affects servers 1398 which trust a client certificate authority which issues certificates 1399 containing DH keys: these are extremely rare and hardly ever encountered. 1400 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 1401 this issue. 1402 (CVE-2015-0205) 1403 [Steve Henson] 1404 1405 *) Ensure that the session ID context of an SSL is updated when its 1406 SSL_CTX is updated via SSL_set_SSL_CTX. 1407 1408 The session ID context is typically set from the parent SSL_CTX, 1409 and can vary with the CTX. 1410 [Adam Langley] 1411 1412 *) Fix various certificate fingerprint issues. 1413 1414 By using non-DER or invalid encodings outside the signed portion of a 1415 certificate the fingerprint can be changed without breaking the signature. 1416 Although no details of the signed portion of the certificate can be changed 1417 this can cause problems with some applications: e.g. those using the 1418 certificate fingerprint for blacklists. 1419 1420 1. Reject signatures with non zero unused bits. 1421 1422 If the BIT STRING containing the signature has non zero unused bits reject 1423 the signature. All current signature algorithms require zero unused bits. 1424 1425 2. Check certificate algorithm consistency. 1426 1427 Check the AlgorithmIdentifier inside TBS matches the one in the 1428 certificate signature. NB: this will result in signature failure 1429 errors for some broken certificates. 1430 1431 Thanks to Konrad Kraszewski from Google for reporting this issue. 1432 1433 3. Check DSA/ECDSA signatures use DER. 1434 1435 Reencode DSA/ECDSA signatures and compare with the original received 1436 signature. Return an error if there is a mismatch. 1437 1438 This will reject various cases including garbage after signature 1439 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 1440 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 1441 (negative or with leading zeroes). 1442 1443 Further analysis was conducted and fixes were developed by Stephen Henson 1444 of the OpenSSL core team. 1445 1446 (CVE-2014-8275) 1447 [Steve Henson] 1448 1449 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 1450 results on some platforms, including x86_64. This bug occurs at random 1451 with a very low probability, and is not known to be exploitable in any 1452 way, though its exact impact is difficult to determine. Thanks to Pieter 1453 Wuille (Blockstream) who reported this issue and also suggested an initial 1454 fix. Further analysis was conducted by the OpenSSL development team and 1455 Adam Langley of Google. The final fix was developed by Andy Polyakov of 1456 the OpenSSL core team. 1457 (CVE-2014-3570) 1458 [Andy Polyakov] 1459 1460 *) Do not resume sessions on the server if the negotiated protocol 1461 version does not match the session's version. Resuming with a different 1462 version, while not strictly forbidden by the RFC, is of questionable 1463 sanity and breaks all known clients. 1464 [David Benjamin, Emilia K��sper] 1465 1466 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 1467 early CCS messages during renegotiation. (Note that because 1468 renegotiation is encrypted, this early CCS was not exploitable.) 1469 [Emilia K��sper] 1470 1471 *) Tighten client-side session ticket handling during renegotiation: 1472 ensure that the client only accepts a session ticket if the server sends 1473 the extension anew in the ServerHello. Previously, a TLS client would 1474 reuse the old extension state and thus accept a session ticket if one was 1475 announced in the initial ServerHello. 1476 1477 Similarly, ensure that the client requires a session ticket if one 1478 was advertised in the ServerHello. Previously, a TLS client would 1479 ignore a missing NewSessionTicket message. 1480 [Emilia K��sper] 1481 1482 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 1483 1484 *) SRTP Memory Leak. 1485 1486 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 1487 sends a carefully crafted handshake message, to cause OpenSSL to fail 1488 to free up to 64k of memory causing a memory leak. This could be 1489 exploited in a Denial Of Service attack. This issue affects OpenSSL 1490 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 1491 whether SRTP is used or configured. Implementations of OpenSSL that 1492 have been compiled with OPENSSL_NO_SRTP defined are not affected. 1493 1494 The fix was developed by the OpenSSL team. 1495 (CVE-2014-3513) 1496 [OpenSSL team] 1497 1498 *) Session Ticket Memory Leak. 1499 1500 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 1501 integrity of that ticket is first verified. In the event of a session 1502 ticket integrity check failing, OpenSSL will fail to free memory 1503 causing a memory leak. By sending a large number of invalid session 1504 tickets an attacker could exploit this issue in a Denial Of Service 1505 attack. 1506 (CVE-2014-3567) 1507 [Steve Henson] 1508 1509 *) Build option no-ssl3 is incomplete. 1510 1511 When OpenSSL is configured with "no-ssl3" as a build option, servers 1512 could accept and complete a SSL 3.0 handshake, and clients could be 1513 configured to send them. 1514 (CVE-2014-3568) 1515 [Akamai and the OpenSSL team] 1516 1517 *) Add support for TLS_FALLBACK_SCSV. 1518 Client applications doing fallback retries should call 1519 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 1520 (CVE-2014-3566) 1521 [Adam Langley, Bodo Moeller] 1522 1523 *) Add additional DigestInfo checks. 1524 1525 Reencode DigestInto in DER and check against the original when 1526 verifying RSA signature: this will reject any improperly encoded 1527 DigestInfo structures. 1528 1529 Note: this is a precautionary measure and no attacks are currently known. 1530 1531 [Steve Henson] 1532 1533 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 1534 1535 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 1536 SRP code can be overrun an internal buffer. Add sanity check that 1537 g, A, B < N to SRP code. 1538 1539 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 1540 Group for discovering this issue. 1541 (CVE-2014-3512) 1542 [Steve Henson] 1543 1544 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 1545 TLS 1.0 instead of higher protocol versions when the ClientHello message 1546 is badly fragmented. This allows a man-in-the-middle attacker to force a 1547 downgrade to TLS 1.0 even if both the server and the client support a 1548 higher protocol version, by modifying the client's TLS records. 1549 1550 Thanks to David Benjamin and Adam Langley (Google) for discovering and 1551 researching this issue. 1552 (CVE-2014-3511) 1553 [David Benjamin] 1554 1555 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 1556 to a denial of service attack. A malicious server can crash the client 1557 with a null pointer dereference (read) by specifying an anonymous (EC)DH 1558 ciphersuite and sending carefully crafted handshake messages. 1559 1560 Thanks to Felix Gr��bert (Google) for discovering and researching this 1561 issue. 1562 (CVE-2014-3510) 1563 [Emilia K��sper] 1564 1565 *) By sending carefully crafted DTLS packets an attacker could cause openssl 1566 to leak memory. This can be exploited through a Denial of Service attack. 1567 Thanks to Adam Langley for discovering and researching this issue. 1568 (CVE-2014-3507) 1569 [Adam Langley] 1570 1571 *) An attacker can force openssl to consume large amounts of memory whilst 1572 processing DTLS handshake messages. This can be exploited through a 1573 Denial of Service attack. 1574 Thanks to Adam Langley for discovering and researching this issue. 1575 (CVE-2014-3506) 1576 [Adam Langley] 1577 1578 *) An attacker can force an error condition which causes openssl to crash 1579 whilst processing DTLS packets due to memory being freed twice. This 1580 can be exploited through a Denial of Service attack. 1581 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 1582 this issue. 1583 (CVE-2014-3505) 1584 [Adam Langley] 1585 1586 *) If a multithreaded client connects to a malicious server using a resumed 1587 session and the server sends an ec point format extension it could write 1588 up to 255 bytes to freed memory. 1589 1590 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 1591 issue. 1592 (CVE-2014-3509) 1593 [Gabor Tyukasz] 1594 1595 *) A malicious server can crash an OpenSSL client with a null pointer 1596 dereference (read) by specifying an SRP ciphersuite even though it was not 1597 properly negotiated with the client. This can be exploited through a 1598 Denial of Service attack. 1599 1600 Thanks to Joonas Kuorilehto and Riku Hietam��ki (Codenomicon) for 1601 discovering and researching this issue. 1602 (CVE-2014-5139) 1603 [Steve Henson] 1604 1605 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 1606 X509_name_oneline, X509_name_print_ex et al. to leak some information 1607 from the stack. Applications may be affected if they echo pretty printing 1608 output to the attacker. 1609 1610 Thanks to Ivan Fratric (Google) for discovering this issue. 1611 (CVE-2014-3508) 1612 [Emilia K��sper, and Steve Henson] 1613 1614 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 1615 for corner cases. (Certain input points at infinity could lead to 1616 bogus results, with non-infinity inputs mapped to infinity too.) 1617 [Bodo Moeller] 1618 1619 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 1620 1621 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 1622 handshake can force the use of weak keying material in OpenSSL 1623 SSL/TLS clients and servers. 1624 1625 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 1626 researching this issue. (CVE-2014-0224) 1627 [KIKUCHI Masashi, Steve Henson] 1628 1629 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 1630 OpenSSL DTLS client the code can be made to recurse eventually crashing 1631 in a DoS attack. 1632 1633 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 1634 (CVE-2014-0221) 1635 [Imre Rad, Steve Henson] 1636 1637 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 1638 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 1639 client or server. This is potentially exploitable to run arbitrary 1640 code on a vulnerable client or server. 1641 1642 Thanks to J��ri Aedla for reporting this issue. (CVE-2014-0195) 1643 [J��ri Aedla, Steve Henson] 1644 1645 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 1646 are subject to a denial of service attack. 1647 1648 Thanks to Felix Gr��bert and Ivan Fratric at Google for discovering 1649 this issue. (CVE-2014-3470) 1650 [Felix Gr��bert, Ivan Fratric, Steve Henson] 1651 1652 *) Harmonize version and its documentation. -f flag is used to display 1653 compilation flags. 1654 [mancha <mancha1@zoho.com>] 1655 1656 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 1657 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 1658 [mancha <mancha1@zoho.com>] 1659 1660 *) Fix some double frees. These are not thought to be exploitable. 1661 [mancha <mancha1@zoho.com>] 1662 1663 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 1664 1665 *) A missing bounds check in the handling of the TLS heartbeat extension 1666 can be used to reveal up to 64k of memory to a connected client or 1667 server. 1668 1669 Thanks for Neel Mehta of Google Security for discovering this bug and to 1670 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 1671 preparing the fix (CVE-2014-0160) 1672 [Adam Langley, Bodo Moeller] 1673 1674 *) Fix for the attack described in the paper "Recovering OpenSSL 1675 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 1676 by Yuval Yarom and Naomi Benger. Details can be obtained from: 1677 http://eprint.iacr.org/2014/140 1678 1679 Thanks to Yuval Yarom and Naomi Benger for discovering this 1680 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 1681 [Yuval Yarom and Naomi Benger] 1682 1683 *) TLS pad extension: draft-agl-tls-padding-03 1684 1685 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 1686 TLS client Hello record length value would otherwise be > 255 and 1687 less that 512 pad with a dummy extension containing zeroes so it 1688 is at least 512 bytes long. 1689 1690 [Adam Langley, Steve Henson] 1691 1692 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 1693 1694 *) Fix for TLS record tampering bug. A carefully crafted invalid 1695 handshake could crash OpenSSL with a NULL pointer exception. 1696 Thanks to Anton Johansson for reporting this issues. 1697 (CVE-2013-4353) 1698 1699 *) Keep original DTLS digest and encryption contexts in retransmission 1700 structures so we can use the previous session parameters if they need 1701 to be resent. (CVE-2013-6450) 1702 [Steve Henson] 1703 1704 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 1705 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 1706 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 1707 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 1708 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 1709 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 1710 [Rob Stradling, Adam Langley] 1711 1712 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 1713 1714 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 1715 supporting platforms or when small records were transferred. 1716 [Andy Polyakov, Steve Henson] 1717 1718 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 1719 1720 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1721 1722 This addresses the flaw in CBC record processing discovered by 1723 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1724 at: http://www.isg.rhul.ac.uk/tls/ 1725 1726 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1727 Security Group at Royal Holloway, University of London 1728 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1729 Emilia K��sper for the initial patch. 1730 (CVE-2013-0169) 1731 [Emilia K��sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1732 1733 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 1734 ciphersuites which can be exploited in a denial of service attack. 1735 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 1736 and detecting this bug and to Wolfgang Ettlinger 1737 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 1738 (CVE-2012-2686) 1739 [Adam Langley] 1740 1741 *) Return an error when checking OCSP signatures when key is NULL. 1742 This fixes a DoS attack. (CVE-2013-0166) 1743 [Steve Henson] 1744 1745 *) Make openssl verify return errors. 1746 [Chris Palmer <palmer@google.com> and Ben Laurie] 1747 1748 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1749 the right response is stapled. Also change SSL_get_certificate() 1750 so it returns the certificate actually sent. 1751 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1752 [Rob Stradling <rob.stradling@comodo.com>] 1753 1754 *) Fix possible deadlock when decoding public keys. 1755 [Steve Henson] 1756 1757 *) Don't use TLS 1.0 record version number in initial client hello 1758 if renegotiating. 1759 [Steve Henson] 1760 1761 Changes between 1.0.1b and 1.0.1c [10 May 2012] 1762 1763 *) Sanity check record length before skipping explicit IV in TLS 1764 1.2, 1.1 and DTLS to fix DoS attack. 1765 1766 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1767 fuzzing as a service testing platform. 1768 (CVE-2012-2333) 1769 [Steve Henson] 1770 1771 *) Initialise tkeylen properly when encrypting CMS messages. 1772 Thanks to Solar Designer of Openwall for reporting this issue. 1773 [Steve Henson] 1774 1775 *) In FIPS mode don't try to use composite ciphers as they are not 1776 approved. 1777 [Steve Henson] 1778 1779 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 1780 1781 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 1782 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 1783 mean any application compiled against OpenSSL 1.0.0 headers setting 1784 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 1785 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 1786 0x10000000L Any application which was previously compiled against 1787 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 1788 will need to be recompiled as a result. Letting be results in 1789 inability to disable specifically TLS 1.1 and in client context, 1790 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 1791 [Steve Henson] 1792 1793 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 1794 disable just protocol X, but all protocols above X *if* there are 1795 protocols *below* X still enabled. In more practical terms it means 1796 that if application wants to disable TLS1.0 in favor of TLS1.1 and 1797 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 1798 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 1799 client side. 1800 [Andy Polyakov] 1801 1802 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 1803 1804 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1805 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1806 in CRYPTO_realloc_clean. 1807 1808 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1809 issue and to Adam Langley <agl@chromium.org> for fixing it. 1810 (CVE-2012-2110) 1811 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1812 1813 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 1814 [Adam Langley] 1815 1816 *) Workarounds for some broken servers that "hang" if a client hello 1817 record length exceeds 255 bytes. 1818 1819 1. Do not use record version number > TLS 1.0 in initial client 1820 hello: some (but not all) hanging servers will now work. 1821 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 1822 the number of ciphers sent in the client hello. This should be 1823 set to an even number, such as 50, for example by passing: 1824 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 1825 Most broken servers should now work. 1826 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 1827 TLS 1.2 client support entirely. 1828 [Steve Henson] 1829 1830 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 1831 [Andy Polyakov] 1832 1833 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 1834 1835 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 1836 STRING form instead of a DigestInfo. 1837 [Steve Henson] 1838 1839 *) The format used for MDC2 RSA signatures is inconsistent between EVP 1840 and the RSA_sign/RSA_verify functions. This was made more apparent when 1841 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 1842 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 1843 the correct format in RSA_verify so both forms transparently work. 1844 [Steve Henson] 1845 1846 *) Some servers which support TLS 1.0 can choke if we initially indicate 1847 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 1848 encrypted premaster secret. As a workaround use the maximum pemitted 1849 client version in client hello, this should keep such servers happy 1850 and still work with previous versions of OpenSSL. 1851 [Steve Henson] 1852 1853 *) Add support for TLS/DTLS heartbeats. 1854 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1855 1856 *) Add support for SCTP. 1857 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1858 1859 *) Improved PRNG seeding for VOS. 1860 [Paul Green <Paul.Green@stratus.com>] 1861 1862 *) Extensive assembler packs updates, most notably: 1863 1864 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 1865 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 1866 - x86_64: bit-sliced AES implementation; 1867 - ARM: NEON support, contemporary platforms optimizations; 1868 - s390x: z196 support; 1869 - *: GHASH and GF(2^m) multiplication implementations; 1870 1871 [Andy Polyakov] 1872 1873 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 1874 (removal of unnecessary code) 1875 [Peter Sylvester <peter.sylvester@edelweb.fr>] 1876 1877 *) Add TLS key material exporter from RFC 5705. 1878 [Eric Rescorla] 1879 1880 *) Add DTLS-SRTP negotiation from RFC 5764. 1881 [Eric Rescorla] 1882 1883 *) Add Next Protocol Negotiation, 1884 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 1885 disabled with a no-npn flag to config or Configure. Code donated 1886 by Google. 1887 [Adam Langley <agl@google.com> and Ben Laurie] 1888 1889 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 1890 NIST-P256, NIST-P521, with constant-time single point multiplication on 1891 typical inputs. Compiler support for the nonstandard type __uint128_t is 1892 required to use this (present in gcc 4.4 and later, for 64-bit builds). 1893 Code made available under Apache License version 2.0. 1894 1895 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 1896 line to include this in your build of OpenSSL, and run "make depend" (or 1897 "make update"). This enables the following EC_METHODs: 1898 1899 EC_GFp_nistp224_method() 1900 EC_GFp_nistp256_method() 1901 EC_GFp_nistp521_method() 1902 1903 EC_GROUP_new_by_curve_name() will automatically use these (while 1904 EC_GROUP_new_curve_GFp() currently prefers the more flexible 1905 implementations). 1906 [Emilia K��sper, Adam Langley, Bodo Moeller (Google)] 1907 1908 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 1909 all platforms. Move ssize_t definition from e_os.h to the public 1910 header file e_os2.h as it now appears in public header file cms.h 1911 [Steve Henson] 1912 1913 *) New -sigopt option to the ca, req and x509 utilities. Additional 1914 signature parameters can be passed using this option and in 1915 particular PSS. 1916 [Steve Henson] 1917 1918 *) Add RSA PSS signing function. This will generate and set the 1919 appropriate AlgorithmIdentifiers for PSS based on those in the 1920 corresponding EVP_MD_CTX structure. No application support yet. 1921 [Steve Henson] 1922 1923 *) Support for companion algorithm specific ASN1 signing routines. 1924 New function ASN1_item_sign_ctx() signs a pre-initialised 1925 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 1926 the appropriate parameters. 1927 [Steve Henson] 1928 1929 *) Add new algorithm specific ASN1 verification initialisation function 1930 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 1931 handling will be the same no matter what EVP_PKEY_METHOD is used. 1932 Add a PSS handler to support verification of PSS signatures: checked 1933 against a number of sample certificates. 1934 [Steve Henson] 1935 1936 *) Add signature printing for PSS. Add PSS OIDs. 1937 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 1938 1939 *) Add algorithm specific signature printing. An individual ASN1 method 1940 can now print out signatures instead of the standard hex dump. 1941 1942 More complex signatures (e.g. PSS) can print out more meaningful 1943 information. Include DSA version that prints out the signature 1944 parameters r, s. 1945 [Steve Henson] 1946 1947 *) Password based recipient info support for CMS library: implementing 1948 RFC3211. 1949 [Steve Henson] 1950 1951 *) Split password based encryption into PBES2 and PBKDF2 functions. This 1952 neatly separates the code into cipher and PBE sections and is required 1953 for some algorithms that split PBES2 into separate pieces (such as 1954 password based CMS). 1955 [Steve Henson] 1956 1957 *) Session-handling fixes: 1958 - Fix handling of connections that are resuming with a session ID, 1959 but also support Session Tickets. 1960 - Fix a bug that suppressed issuing of a new ticket if the client 1961 presented a ticket with an expired session. 1962 - Try to set the ticket lifetime hint to something reasonable. 1963 - Make tickets shorter by excluding irrelevant information. 1964 - On the client side, don't ignore renewed tickets. 1965 [Adam Langley, Bodo Moeller (Google)] 1966 1967 *) Fix PSK session representation. 1968 [Bodo Moeller] 1969 1970 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 1971 1972 This work was sponsored by Intel. 1973 [Andy Polyakov] 1974 1975 *) Add GCM support to TLS library. Some custom code is needed to split 1976 the IV between the fixed (from PRF) and explicit (from TLS record) 1977 portions. This adds all GCM ciphersuites supported by RFC5288 and 1978 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 1979 add a special AESGCM string for GCM only. 1980 [Steve Henson] 1981 1982 *) Expand range of ctrls for AES GCM. Permit setting invocation 1983 field on decrypt and retrieval of invocation field only on encrypt. 1984 [Steve Henson] 1985 1986 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 1987 As required by RFC5289 these ciphersuites cannot be used if for 1988 versions of TLS earlier than 1.2. 1989 [Steve Henson] 1990 1991 *) For FIPS capable OpenSSL interpret a NULL default public key method 1992 as unset and return the appopriate default but do *not* set the default. 1993 This means we can return the appopriate method in applications that 1994 swicth between FIPS and non-FIPS modes. 1995 [Steve Henson] 1996 1997 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 1998 ENGINE is used then we cannot handle that in the FIPS module so we 1999 keep original code iff non-FIPS operations are allowed. 2000 [Steve Henson] 2001 2002 *) Add -attime option to openssl utilities. 2003 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 2004 2005 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 2006 [Steve Henson] 2007 2008 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 2009 FIPS EC methods unconditionally for now. 2010 [Steve Henson] 2011 2012 *) New build option no-ec2m to disable characteristic 2 code. 2013 [Steve Henson] 2014 2015 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 2016 all cases can be covered as some introduce binary incompatibilities. 2017 [Steve Henson] 2018 2019 *) Redirect RSA operations to FIPS module including keygen, 2020 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 2021 [Steve Henson] 2022 2023 *) Add similar low level API blocking to ciphers. 2024 [Steve Henson] 2025 2026 *) Low level digest APIs are not approved in FIPS mode: any attempt 2027 to use these will cause a fatal error. Applications that *really* want 2028 to use them can use the private_* version instead. 2029 [Steve Henson] 2030 2031 *) Redirect cipher operations to FIPS module for FIPS builds. 2032 [Steve Henson] 2033 2034 *) Redirect digest operations to FIPS module for FIPS builds. 2035 [Steve Henson] 2036 2037 *) Update build system to add "fips" flag which will link in fipscanister.o 2038 for static and shared library builds embedding a signature if needed. 2039 [Steve Henson] 2040 2041 *) Output TLS supported curves in preference order instead of numerical 2042 order. This is currently hardcoded for the highest order curves first. 2043 This should be configurable so applications can judge speed vs strength. 2044 [Steve Henson] 2045 2046 *) Add TLS v1.2 server support for client authentication. 2047 [Steve Henson] 2048 2049 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 2050 and enable MD5. 2051 [Steve Henson] 2052 2053 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 2054 FIPS modules versions. 2055 [Steve Henson] 2056 2057 *) Add TLS v1.2 client side support for client authentication. Keep cache 2058 of handshake records longer as we don't know the hash algorithm to use 2059 until after the certificate request message is received. 2060 [Steve Henson] 2061 2062 *) Initial TLS v1.2 client support. Add a default signature algorithms 2063 extension including all the algorithms we support. Parse new signature 2064 format in client key exchange. Relax some ECC signing restrictions for 2065 TLS v1.2 as indicated in RFC5246. 2066 [Steve Henson] 2067 2068 *) Add server support for TLS v1.2 signature algorithms extension. Switch 2069 to new signature format when needed using client digest preference. 2070 All server ciphersuites should now work correctly in TLS v1.2. No client 2071 support yet and no support for client certificates. 2072 [Steve Henson] 2073 2074 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 2075 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 2076 ciphersuites. At present only RSA key exchange ciphersuites work with 2077 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 2078 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 2079 and version checking. 2080 [Steve Henson] 2081 2082 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 2083 with this defined it will not be affected by any changes to ssl internal 2084 structures. Add several utility functions to allow openssl application 2085 to work with OPENSSL_NO_SSL_INTERN defined. 2086 [Steve Henson] 2087 2088 *) A long standing patch to add support for SRP from EdelWeb (Peter 2089 Sylvester and Christophe Renou) was integrated. 2090 [Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 2091 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 2092 Ben Laurie] 2093 2094 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 2095 [Steve Henson] 2096 2097 *) Permit abbreviated handshakes when renegotiating using the function 2098 SSL_renegotiate_abbreviated(). 2099 [Robin Seggelmann <seggelmann@fh-muenster.de>] 2100 2101 *) Add call to ENGINE_register_all_complete() to 2102 ENGINE_load_builtin_engines(), so some implementations get used 2103 automatically instead of needing explicit application support. 2104 [Steve Henson] 2105 2106 *) Add support for TLS key exporter as described in RFC5705. 2107 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 2108 2109 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 2110 a few changes are required: 2111 2112 Add SSL_OP_NO_TLSv1_1 flag. 2113 Add TLSv1_1 methods. 2114 Update version checking logic to handle version 1.1. 2115 Add explicit IV handling (ported from DTLS code). 2116 Add command line options to s_client/s_server. 2117 [Steve Henson] 2118 2119 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 2120 2121 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 2122 in CMS and PKCS7 code. When RSA decryption fails use a random key for 2123 content decryption and always return the same error. Note: this attack 2124 needs on average 2^20 messages so it only affects automated senders. The 2125 old behaviour can be reenabled in the CMS code by setting the 2126 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 2127 an MMA defence is not necessary. 2128 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 2129 this issue. (CVE-2012-0884) 2130 [Steve Henson] 2131 2132 *) Fix CVE-2011-4619: make sure we really are receiving a 2133 client hello before rejecting multiple SGC restarts. Thanks to 2134 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 2135 [Steve Henson] 2136 2137 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 2138 2139 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 2140 Thanks to Antonio Martin, Enterprise Secure Access Research and 2141 Development, Cisco Systems, Inc. for discovering this bug and 2142 preparing a fix. (CVE-2012-0050) 2143 [Antonio Martin] 2144 2145 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 2146 2147 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 2148 of the Vaudenay padding oracle attack on CBC mode encryption 2149 which enables an efficient plaintext recovery attack against 2150 the OpenSSL implementation of DTLS. Their attack exploits timing 2151 differences arising during decryption processing. A research 2152 paper describing this attack can be found at: 2153 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 2154 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 2155 Security Group at Royal Holloway, University of London 2156 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 2157 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 2158 for preparing the fix. (CVE-2011-4108) 2159 [Robin Seggelmann, Michael Tuexen] 2160 2161 *) Clear bytes used for block padding of SSL 3.0 records. 2162 (CVE-2011-4576) 2163 [Adam Langley (Google)] 2164 2165 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 2166 Kadianakis <desnacked@gmail.com> for discovering this issue and 2167 Adam Langley for preparing the fix. (CVE-2011-4619) 2168 [Adam Langley (Google)] 2169 2170 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 2171 [Andrey Kulikov <amdeich@gmail.com>] 2172 2173 *) Prevent malformed RFC3779 data triggering an assertion failure. 2174 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 2175 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 2176 [Rob Austein <sra@hactrn.net>] 2177 2178 *) Improved PRNG seeding for VOS. 2179 [Paul Green <Paul.Green@stratus.com>] 2180 2181 *) Fix ssl_ciph.c set-up race. 2182 [Adam Langley (Google)] 2183 2184 *) Fix spurious failures in ecdsatest.c. 2185 [Emilia K��sper (Google)] 2186 2187 *) Fix the BIO_f_buffer() implementation (which was mixing different 2188 interpretations of the '..._len' fields). 2189 [Adam Langley (Google)] 2190 2191 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 2192 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 2193 threads won't reuse the same blinding coefficients. 2194 2195 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 2196 lock to call BN_BLINDING_invert_ex, and avoids one use of 2197 BN_BLINDING_update for each BN_BLINDING structure (previously, 2198 the last update always remained unused). 2199 [Emilia K��sper (Google)] 2200 2201 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 2202 [Bob Buckholz (Google)] 2203 2204 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 2205 2206 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 2207 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 2208 [Kaspar Brand <ossl@velox.ch>] 2209 2210 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 2211 for multi-threaded use of ECDH. (CVE-2011-3210) 2212 [Adam Langley (Google)] 2213 2214 *) Fix x509_name_ex_d2i memory leak on bad inputs. 2215 [Bodo Moeller] 2216 2217 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 2218 signature public key algorithm by using OID xref utilities instead. 2219 Before this you could only use some ECC ciphersuites with SHA1 only. 2220 [Steve Henson] 2221 2222 *) Add protection against ECDSA timing attacks as mentioned in the paper 2223 by Billy Bob Brumley and Nicola Tuveri, see: 2224 2225 http://eprint.iacr.org/2011/232.pdf 2226 2227 [Billy Bob Brumley and Nicola Tuveri] 2228 2229 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 2230 2231 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 2232 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 2233 2234 *) Fix bug in string printing code: if *any* escaping is enabled we must 2235 escape the escape character (backslash) or the resulting string is 2236 ambiguous. 2237 [Steve Henson] 2238 2239 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 2240 2241 *) Disable code workaround for ancient and obsolete Netscape browsers 2242 and servers: an attacker can use it in a ciphersuite downgrade attack. 2243 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 2244 [Steve Henson] 2245 2246 *) Fixed J-PAKE implementation error, originally discovered by 2247 Sebastien Martini, further info and confirmation from Stefan 2248 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 2249 [Ben Laurie] 2250 2251 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 2252 2253 *) Fix extension code to avoid race conditions which can result in a buffer 2254 overrun vulnerability: resumed sessions must not be modified as they can 2255 be shared by multiple threads. CVE-2010-3864 2256 [Steve Henson] 2257 2258 *) Fix WIN32 build system to correctly link an ENGINE directory into 2259 a DLL. 2260 [Steve Henson] 2261 2262 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 2263 2264 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 2265 (CVE-2010-1633) 2266 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 2267 2268 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 2269 2270 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 2271 context. The operation can be customised via the ctrl mechanism in 2272 case ENGINEs want to include additional functionality. 2273 [Steve Henson] 2274 2275 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 2276 [Steve Henson] 2277 2278 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 2279 output hashes compatible with older versions of OpenSSL. 2280 [Willy Weisz <weisz@vcpc.univie.ac.at>] 2281 2282 *) Fix compression algorithm handling: if resuming a session use the 2283 compression algorithm of the resumed session instead of determining 2284 it from client hello again. Don't allow server to change algorithm. 2285 [Steve Henson] 2286 2287 *) Add load_crls() function to apps tidying load_certs() too. Add option 2288 to verify utility to allow additional CRLs to be included. 2289 [Steve Henson] 2290 2291 *) Update OCSP request code to permit adding custom headers to the request: 2292 some responders need this. 2293 [Steve Henson] 2294 2295 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 2296 correctly. 2297 [Julia Lawall <julia@diku.dk>] 2298 2299 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 2300 needlessly dereferenced structures, used obsolete functions and 2301 didn't handle all updated verify codes correctly. 2302 [Steve Henson] 2303 2304 *) Disable MD2 in the default configuration. 2305 [Steve Henson] 2306 2307 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 2308 indicate the initial BIO being pushed or popped. This makes it possible 2309 to determine whether the BIO is the one explicitly called or as a result 2310 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 2311 it handles reference counts correctly and doesn't zero out the I/O bio 2312 when it is not being explicitly popped. WARNING: applications which 2313 included workarounds for the old buggy behaviour will need to be modified 2314 or they could free up already freed BIOs. 2315 [Steve Henson] 2316 2317 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 2318 renaming to all platforms (within the 0.9.8 branch, this was 2319 done conditionally on Netware platforms to avoid a name clash). 2320 [Guenter <lists@gknw.net>] 2321 2322 *) Add ECDHE and PSK support to DTLS. 2323 [Michael Tuexen <tuexen@fh-muenster.de>] 2324 2325 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 2326 be used on C++. 2327 [Steve Henson] 2328 2329 *) Add "missing" function EVP_MD_flags() (without this the only way to 2330 retrieve a digest flags is by accessing the structure directly. Update 2331 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 2332 or cipher is registered as in the "from" argument. Print out all 2333 registered digests in the dgst usage message instead of manually 2334 attempting to work them out. 2335 [Steve Henson] 2336 2337 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 2338 this allows the use of compression and extensions. Change default cipher 2339 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 2340 by default unless an application cipher string requests it. 2341 [Steve Henson] 2342 2343 *) Alter match criteria in PKCS12_parse(). It used to try to use local 2344 key ids to find matching certificates and keys but some PKCS#12 files 2345 don't follow the (somewhat unwritten) rules and this strategy fails. 2346 Now just gather all certificates together and the first private key 2347 then look for the first certificate that matches the key. 2348 [Steve Henson] 2349 2350 *) Support use of registered digest and cipher names for dgst and cipher 2351 commands instead of having to add each one as a special case. So now 2352 you can do: 2353 2354 openssl sha256 foo 2355 2356 as well as: 2357 2358 openssl dgst -sha256 foo 2359 2360 and this works for ENGINE based algorithms too. 2361 2362 [Steve Henson] 2363 2364 *) Update Gost ENGINE to support parameter files. 2365 [Victor B. Wagner <vitus@cryptocom.ru>] 2366 2367 *) Support GeneralizedTime in ca utility. 2368 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 2369 2370 *) Enhance the hash format used for certificate directory links. The new 2371 form uses the canonical encoding (meaning equivalent names will work 2372 even if they aren't identical) and uses SHA1 instead of MD5. This form 2373 is incompatible with the older format and as a result c_rehash should 2374 be used to rebuild symbolic links. 2375 [Steve Henson] 2376 2377 *) Make PKCS#8 the default write format for private keys, replacing the 2378 traditional format. This form is standardised, more secure and doesn't 2379 include an implicit MD5 dependency. 2380 [Steve Henson] 2381 2382 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 2383 committed to OpenSSL should pass this lot as a minimum. 2384 [Steve Henson] 2385 2386 *) Add session ticket override functionality for use by EAP-FAST. 2387 [Jouni Malinen <j@w1.fi>] 2388 2389 *) Modify HMAC functions to return a value. Since these can be implemented 2390 in an ENGINE errors can occur. 2391 [Steve Henson] 2392 2393 *) Type-checked OBJ_bsearch_ex. 2394 [Ben Laurie] 2395 2396 *) Type-checked OBJ_bsearch. Also some constification necessitated 2397 by type-checking. Still to come: TXT_DB, bsearch(?), 2398 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 2399 CONF_VALUE. 2400 [Ben Laurie] 2401 2402 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 2403 seconds to a tm structure directly, instead of going through OS 2404 specific date routines. This avoids any issues with OS routines such 2405 as the year 2038 bug. New *_adj() functions for ASN1 time structures 2406 and X509_time_adj_ex() to cover the extended range. The existing 2407 X509_time_adj() is still usable and will no longer have any date issues. 2408 [Steve Henson] 2409 2410 *) Delta CRL support. New use deltas option which will attempt to locate 2411 and search any appropriate delta CRLs available. 2412 2413 This work was sponsored by Google. 2414 [Steve Henson] 2415 2416 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 2417 code and add additional score elements. Validate alternate CRL paths 2418 as part of the CRL checking and indicate a new error "CRL path validation 2419 error" in this case. Applications wanting additional details can use 2420 the verify callback and check the new "parent" field. If this is not 2421 NULL CRL path validation is taking place. Existing applications wont 2422 see this because it requires extended CRL support which is off by 2423 default. 2424 2425 This work was sponsored by Google. 2426 [Steve Henson] 2427 2428 *) Support for freshest CRL extension. 2429 2430 This work was sponsored by Google. 2431 [Steve Henson] 2432 2433 *) Initial indirect CRL support. Currently only supported in the CRLs 2434 passed directly and not via lookup. Process certificate issuer 2435 CRL entry extension and lookup CRL entries by bother issuer name 2436 and serial number. Check and process CRL issuer entry in IDP extension. 2437 2438 This work was sponsored by Google. 2439 [Steve Henson] 2440 2441 *) Add support for distinct certificate and CRL paths. The CRL issuer 2442 certificate is validated separately in this case. Only enabled if 2443 an extended CRL support flag is set: this flag will enable additional 2444 CRL functionality in future. 2445 2446 This work was sponsored by Google. 2447 [Steve Henson] 2448 2449 *) Add support for policy mappings extension. 2450 2451 This work was sponsored by Google. 2452 [Steve Henson] 2453 2454 *) Fixes to pathlength constraint, self issued certificate handling, 2455 policy processing to align with RFC3280 and PKITS tests. 2456 2457 This work was sponsored by Google. 2458 [Steve Henson] 2459 2460 *) Support for name constraints certificate extension. DN, email, DNS 2461 and URI types are currently supported. 2462 2463 This work was sponsored by Google. 2464 [Steve Henson] 2465 2466 *) To cater for systems that provide a pointer-based thread ID rather 2467 than numeric, deprecate the current numeric thread ID mechanism and 2468 replace it with a structure and associated callback type. This 2469 mechanism allows a numeric "hash" to be extracted from a thread ID in 2470 either case, and on platforms where pointers are larger than 'long', 2471 mixing is done to help ensure the numeric 'hash' is usable even if it 2472 can't be guaranteed unique. The default mechanism is to use "&errno" 2473 as a pointer-based thread ID to distinguish between threads. 2474 2475 Applications that want to provide their own thread IDs should now use 2476 CRYPTO_THREADID_set_callback() to register a callback that will call 2477 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 2478 2479 Note that ERR_remove_state() is now deprecated, because it is tied 2480 to the assumption that thread IDs are numeric. ERR_remove_state(0) 2481 to free the current thread's error state should be replaced by 2482 ERR_remove_thread_state(NULL). 2483 2484 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 2485 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 2486 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 2487 application was previously providing a numeric thread callback that 2488 was inappropriate for distinguishing threads, then uniqueness might 2489 have been obtained with &errno that happened immediately in the 2490 intermediate development versions of OpenSSL; this is no longer the 2491 case, the numeric thread callback will now override the automatic use 2492 of &errno.) 2493 [Geoff Thorpe, with help from Bodo Moeller] 2494 2495 *) Initial support for different CRL issuing certificates. This covers a 2496 simple case where the self issued certificates in the chain exist and 2497 the real CRL issuer is higher in the existing chain. 2498 2499 This work was sponsored by Google. 2500 [Steve Henson] 2501 2502 *) Removed effectively defunct crypto/store from the build. 2503 [Ben Laurie] 2504 2505 *) Revamp of STACK to provide stronger type-checking. Still to come: 2506 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 2507 ASN1_STRING, CONF_VALUE. 2508 [Ben Laurie] 2509 2510 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 2511 RAM on SSL connections. This option can save about 34k per idle SSL. 2512 [Nick Mathewson] 2513 2514 *) Revamp of LHASH to provide stronger type-checking. Still to come: 2515 STACK, TXT_DB, bsearch, qsort. 2516 [Ben Laurie] 2517 2518 *) Initial support for Cryptographic Message Syntax (aka CMS) based 2519 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 2520 support for data, signedData, compressedData, digestedData and 2521 encryptedData, envelopedData types included. Scripts to check against 2522 RFC4134 examples draft and interop and consistency checks of many 2523 content types and variants. 2524 [Steve Henson] 2525 2526 *) Add options to enc utility to support use of zlib compression BIO. 2527 [Steve Henson] 2528 2529 *) Extend mk1mf to support importing of options and assembly language 2530 files from Configure script, currently only included in VC-WIN32. 2531 The assembly language rules can now optionally generate the source 2532 files from the associated perl scripts. 2533 [Steve Henson] 2534 2535 *) Implement remaining functionality needed to support GOST ciphersuites. 2536 Interop testing has been performed using CryptoPro implementations. 2537 [Victor B. Wagner <vitus@cryptocom.ru>] 2538 2539 *) s390x assembler pack. 2540 [Andy Polyakov] 2541 2542 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 2543 "family." 2544 [Andy Polyakov] 2545 2546 *) Implement Opaque PRF Input TLS extension as specified in 2547 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 2548 official specification yet and no extension type assignment by 2549 IANA exists, this extension (for now) will have to be explicitly 2550 enabled when building OpenSSL by providing the extension number 2551 to use. For example, specify an option 2552 2553 -DTLSEXT_TYPE_opaque_prf_input=0x9527 2554 2555 to the "config" or "Configure" script to enable the extension, 2556 assuming extension number 0x9527 (which is a completely arbitrary 2557 and unofficial assignment based on the MD5 hash of the Internet 2558 Draft). Note that by doing so, you potentially lose 2559 interoperability with other TLS implementations since these might 2560 be using the same extension number for other purposes. 2561 2562 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 2563 opaque PRF input value to use in the handshake. This will create 2564 an interal copy of the length-'len' string at 'src', and will 2565 return non-zero for success. 2566 2567 To get more control and flexibility, provide a callback function 2568 by using 2569 2570 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 2571 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 2572 2573 where 2574 2575 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 2576 void *arg; 2577 2578 Callback function 'cb' will be called in handshakes, and is 2579 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 2580 Argument 'arg' is for application purposes (the value as given to 2581 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 2582 be provided to the callback function). The callback function 2583 has to return non-zero to report success: usually 1 to use opaque 2584 PRF input just if possible, or 2 to enforce use of the opaque PRF 2585 input. In the latter case, the library will abort the handshake 2586 if opaque PRF input is not successfully negotiated. 2587 2588 Arguments 'peerinput' and 'len' given to the callback function 2589 will always be NULL and 0 in the case of a client. A server will 2590 see the client's opaque PRF input through these variables if 2591 available (NULL and 0 otherwise). Note that if the server 2592 provides an opaque PRF input, the length must be the same as the 2593 length of the client's opaque PRF input. 2594 2595 Note that the callback function will only be called when creating 2596 a new session (session resumption can resume whatever was 2597 previously negotiated), and will not be called in SSL 2.0 2598 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 2599 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 2600 for applications that need to enforce opaque PRF input. 2601 2602 [Bodo Moeller] 2603 2604 *) Update ssl code to support digests other than SHA1+MD5 for handshake 2605 MAC. 2606 2607 [Victor B. Wagner <vitus@cryptocom.ru>] 2608 2609 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2610 RFC4507bis. The encrypted ticket format is an encrypted encoded 2611 SSL_SESSION structure, that way new session features are automatically 2612 supported. 2613 2614 If a client application caches session in an SSL_SESSION structure 2615 support is transparent because tickets are now stored in the encoded 2616 SSL_SESSION. 2617 2618 The SSL_CTX structure automatically generates keys for ticket 2619 protection in servers so again support should be possible 2620 with no application modification. 2621 2622 If a client or server wishes to disable RFC4507 support then the option 2623 SSL_OP_NO_TICKET can be set. 2624 2625 Add a TLS extension debugging callback to allow the contents of any client 2626 or server extensions to be examined. 2627 2628 This work was sponsored by Google. 2629 [Steve Henson] 2630 2631 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 2632 OpenSSL should now compile cleanly on gcc 4.2 2633 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 2634 2635 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 2636 support including streaming MAC support: this is required for GOST 2637 ciphersuite support. 2638 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 2639 2640 *) Add option -stream to use PKCS#7 streaming in smime utility. New 2641 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 2642 to output in BER and PEM format. 2643 [Steve Henson] 2644 2645 *) Experimental support for use of HMAC via EVP_PKEY interface. This 2646 allows HMAC to be handled via the EVP_DigestSign*() interface. The 2647 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 2648 ENGINE support for HMAC keys which are unextractable. New -mac and 2649 -macopt options to dgst utility. 2650 [Steve Henson] 2651 2652 *) New option -sigopt to dgst utility. Update dgst to use 2653 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 2654 alternative signing paramaters such as X9.31 or PSS in the dgst 2655 utility. 2656 [Steve Henson] 2657 2658 *) Change ssl_cipher_apply_rule(), the internal function that does 2659 the work each time a ciphersuite string requests enabling 2660 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 2661 removing ("!foo+bar") a class of ciphersuites: Now it maintains 2662 the order of disabled ciphersuites such that those ciphersuites 2663 that most recently went from enabled to disabled not only stay 2664 in order with respect to each other, but also have higher priority 2665 than other disabled ciphersuites the next time ciphersuites are 2666 enabled again. 2667 2668 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 2669 the same ciphersuites as with "HIGH" alone, but in a specific 2670 order where the PSK ciphersuites come first (since they are the 2671 most recently disabled ciphersuites when "HIGH" is parsed). 2672 2673 Also, change ssl_create_cipher_list() (using this new 2674 funcionality) such that between otherwise identical 2675 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 2676 the default order. 2677 [Bodo Moeller] 2678 2679 *) Change ssl_create_cipher_list() so that it automatically 2680 arranges the ciphersuites in reasonable order before starting 2681 to process the rule string. Thus, the definition for "DEFAULT" 2682 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 2683 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 2684 This makes it much easier to arrive at a reasonable default order 2685 in applications for which anonymous ciphers are OK (meaning 2686 that you can't actually use DEFAULT). 2687 [Bodo Moeller; suggested by Victor Duchovni] 2688 2689 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 2690 processing) into multiple integers instead of setting 2691 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 2692 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 2693 (These masks as well as the individual bit definitions are hidden 2694 away into the non-exported interface ssl/ssl_locl.h, so this 2695 change to the definition of the SSL_CIPHER structure shouldn't 2696 affect applications.) This give us more bits for each of these 2697 categories, so there is no longer a need to coagulate AES128 and 2698 AES256 into a single algorithm bit, and to coagulate Camellia128 2699 and Camellia256 into a single algorithm bit, which has led to all 2700 kinds of kludges. 2701 2702 Thus, among other things, the kludge introduced in 0.9.7m and 2703 0.9.8e for masking out AES256 independently of AES128 or masking 2704 out Camellia256 independently of AES256 is not needed here in 0.9.9. 2705 2706 With the change, we also introduce new ciphersuite aliases that 2707 so far were missing: "AES128", "AES256", "CAMELLIA128", and 2708 "CAMELLIA256". 2709 [Bodo Moeller] 2710 2711 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 2712 Use the leftmost N bytes of the signature input if the input is 2713 larger than the prime q (with N being the size in bytes of q). 2714 [Nils Larsch] 2715 2716 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 2717 it yet and it is largely untested. 2718 [Steve Henson] 2719 2720 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 2721 [Nils Larsch] 2722 2723 *) Initial incomplete changes to avoid need for function casts in OpenSSL 2724 some compilers (gcc 4.2 and later) reject their use. Safestack is 2725 reimplemented. Update ASN1 to avoid use of legacy functions. 2726 [Steve Henson] 2727 2728 *) Win32/64 targets are linked with Winsock2. 2729 [Andy Polyakov] 2730 2731 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 2732 to external functions. This can be used to increase CRL handling 2733 efficiency especially when CRLs are very large by (for example) storing 2734 the CRL revoked certificates in a database. 2735 [Steve Henson] 2736 2737 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 2738 new CRLs added to a directory can be used. New command line option 2739 -verify_return_error to s_client and s_server. This causes real errors 2740 to be returned by the verify callback instead of carrying on no matter 2741 what. This reflects the way a "real world" verify callback would behave. 2742 [Steve Henson] 2743 2744 *) GOST engine, supporting several GOST algorithms and public key formats. 2745 Kindly donated by Cryptocom. 2746 [Cryptocom] 2747 2748 *) Partial support for Issuing Distribution Point CRL extension. CRLs 2749 partitioned by DP are handled but no indirect CRL or reason partitioning 2750 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 2751 selected via a scoring technique which handles IDP and AKID in CRLs. 2752 [Steve Henson] 2753 2754 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 2755 will ultimately be used for all verify operations: this will remove the 2756 X509_STORE dependency on certificate verification and allow alternative 2757 lookup methods. X509_STORE based implementations of these two callbacks. 2758 [Steve Henson] 2759 2760 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 2761 Modify get_crl() to find a valid (unexpired) CRL if possible. 2762 [Steve Henson] 2763 2764 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 2765 this would be called X509_CRL_cmp() but that name is already used by 2766 a function that just compares CRL issuer names. Cache several CRL 2767 extensions in X509_CRL structure and cache CRLDP in X509. 2768 [Steve Henson] 2769 2770 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 2771 this maps equivalent X509_NAME structures into a consistent structure. 2772 Name comparison can then be performed rapidly using memcmp(). 2773 [Steve Henson] 2774 2775 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 2776 utility. 2777 [Steve Henson] 2778 2779 *) Allow digests to supply their own micalg string for S/MIME type using 2780 the ctrl EVP_MD_CTRL_MICALG. 2781 [Steve Henson] 2782 2783 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 2784 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 2785 ctrl. It can then customise the structure before and/or after signing 2786 if necessary. 2787 [Steve Henson] 2788 2789 *) New function OBJ_add_sigid() to allow application defined signature OIDs 2790 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 2791 to free up any added signature OIDs. 2792 [Steve Henson] 2793 2794 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 2795 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 2796 digest and cipher tables. New options added to openssl utility: 2797 list-message-digest-algorithms and list-cipher-algorithms. 2798 [Steve Henson] 2799 2800 *) Change the array representation of binary polynomials: the list 2801 of degrees of non-zero coefficients is now terminated with -1. 2802 Previously it was terminated with 0, which was also part of the 2803 value; thus, the array representation was not applicable to 2804 polynomials where t^0 has coefficient zero. This change makes 2805 the array representation useful in a more general context. 2806 [Douglas Stebila] 2807 2808 *) Various modifications and fixes to SSL/TLS cipher string 2809 handling. For ECC, the code now distinguishes between fixed ECDH 2810 with RSA certificates on the one hand and with ECDSA certificates 2811 on the other hand, since these are separate ciphersuites. The 2812 unused code for Fortezza ciphersuites has been removed. 2813 2814 For consistency with EDH, ephemeral ECDH is now called "EECDH" 2815 (not "ECDHE"). For consistency with the code for DH 2816 certificates, use of ECDH certificates is now considered ECDH 2817 authentication, not RSA or ECDSA authentication (the latter is 2818 merely the CA's signing algorithm and not actively used in the 2819 protocol). 2820 2821 The temporary ciphersuite alias "ECCdraft" is no longer 2822 available, and ECC ciphersuites are no longer excluded from "ALL" 2823 and "DEFAULT". The following aliases now exist for RFC 4492 2824 ciphersuites, most of these by analogy with the DH case: 2825 2826 kECDHr - ECDH cert, signed with RSA 2827 kECDHe - ECDH cert, signed with ECDSA 2828 kECDH - ECDH cert (signed with either RSA or ECDSA) 2829 kEECDH - ephemeral ECDH 2830 ECDH - ECDH cert or ephemeral ECDH 2831 2832 aECDH - ECDH cert 2833 aECDSA - ECDSA cert 2834 ECDSA - ECDSA cert 2835 2836 AECDH - anonymous ECDH 2837 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 2838 2839 [Bodo Moeller] 2840 2841 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 2842 Use correct micalg parameters depending on digest(s) in signed message. 2843 [Steve Henson] 2844 2845 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 2846 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 2847 [Steve Henson] 2848 2849 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 2850 an engine to register a method. Add ENGINE lookups for methods and 2851 functional reference processing. 2852 [Steve Henson] 2853 2854 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 2855 EVP_{Sign,Verify}* which allow an application to customise the signature 2856 process. 2857 [Steve Henson] 2858 2859 *) New -resign option to smime utility. This adds one or more signers 2860 to an existing PKCS#7 signedData structure. Also -md option to use an 2861 alternative message digest algorithm for signing. 2862 [Steve Henson] 2863 2864 *) Tidy up PKCS#7 routines and add new functions to make it easier to 2865 create PKCS7 structures containing multiple signers. Update smime 2866 application to support multiple signers. 2867 [Steve Henson] 2868 2869 *) New -macalg option to pkcs12 utility to allow setting of an alternative 2870 digest MAC. 2871 [Steve Henson] 2872 2873 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 2874 Reorganize PBE internals to lookup from a static table using NIDs, 2875 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 2876 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 2877 PRF which will be automatically used with PBES2. 2878 [Steve Henson] 2879 2880 *) Replace the algorithm specific calls to generate keys in "req" with the 2881 new API. 2882 [Steve Henson] 2883 2884 *) Update PKCS#7 enveloped data routines to use new API. This is now 2885 supported by any public key method supporting the encrypt operation. A 2886 ctrl is added to allow the public key algorithm to examine or modify 2887 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 2888 a no op. 2889 [Steve Henson] 2890 2891 *) Add a ctrl to asn1 method to allow a public key algorithm to express 2892 a default digest type to use. In most cases this will be SHA1 but some 2893 algorithms (such as GOST) need to specify an alternative digest. The 2894 return value indicates how strong the prefernce is 1 means optional and 2895 2 is mandatory (that is it is the only supported type). Modify 2896 ASN1_item_sign() to accept a NULL digest argument to indicate it should 2897 use the default md. Update openssl utilities to use the default digest 2898 type for signing if it is not explicitly indicated. 2899 [Steve Henson] 2900 2901 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 2902 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 2903 signing method from the key type. This effectively removes the link 2904 between digests and public key types. 2905 [Steve Henson] 2906 2907 *) Add an OID cross reference table and utility functions. Its purpose is to 2908 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 2909 rsaEncryption. This will allow some of the algorithm specific hackery 2910 needed to use the correct OID to be removed. 2911 [Steve Henson] 2912 2913 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 2914 structures for PKCS7_sign(). They are now set up by the relevant public 2915 key ASN1 method. 2916 [Steve Henson] 2917 2918 *) Add provisional EC pkey method with support for ECDSA and ECDH. 2919 [Steve Henson] 2920 2921 *) Add support for key derivation (agreement) in the API, DH method and 2922 pkeyutl. 2923 [Steve Henson] 2924 2925 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 2926 public and private key formats. As a side effect these add additional 2927 command line functionality not previously available: DSA signatures can be 2928 generated and verified using pkeyutl and DH key support and generation in 2929 pkey, genpkey. 2930 [Steve Henson] 2931 2932 *) BeOS support. 2933 [Oliver Tappe <zooey@hirschkaefer.de>] 2934 2935 *) New make target "install_html_docs" installs HTML renditions of the 2936 manual pages. 2937 [Oliver Tappe <zooey@hirschkaefer.de>] 2938 2939 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 2940 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 2941 support key and parameter generation and add initial key generation 2942 functionality for RSA. 2943 [Steve Henson] 2944 2945 *) Add functions for main EVP_PKEY_method operations. The undocumented 2946 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 2947 EVP_PKEY_{encrypt,decrypt}_old. 2948 [Steve Henson] 2949 2950 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 2951 key API, doesn't do much yet. 2952 [Steve Henson] 2953 2954 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 2955 public key algorithms. New option to openssl utility: 2956 "list-public-key-algorithms" to print out info. 2957 [Steve Henson] 2958 2959 *) Implement the Supported Elliptic Curves Extension for 2960 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2961 [Douglas Stebila] 2962 2963 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 2964 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 2965 [Steve Henson] 2966 2967 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 2968 utilities such as rsa, dsa, dsaparam etc except they process any key 2969 type. 2970 [Steve Henson] 2971 2972 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 2973 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 2974 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 2975 structure. 2976 [Steve Henson] 2977 2978 *) Initial support for pluggable public key ASN1. 2979 De-spaghettify the public key ASN1 handling. Move public and private 2980 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 2981 algorithm specific handling to a single module within the relevant 2982 algorithm directory. Add functions to allow (near) opaque processing 2983 of public and private key structures. 2984 [Steve Henson] 2985 2986 *) Implement the Supported Point Formats Extension for 2987 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2988 [Douglas Stebila] 2989 2990 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 2991 for the psk identity [hint] and the psk callback functions to the 2992 SSL_SESSION, SSL and SSL_CTX structure. 2993 2994 New ciphersuites: 2995 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 2996 PSK-AES256-CBC-SHA 2997 2998 New functions: 2999 SSL_CTX_use_psk_identity_hint 3000 SSL_get_psk_identity_hint 3001 SSL_get_psk_identity 3002 SSL_use_psk_identity_hint 3003 3004 [Mika Kousa and Pasi Eronen of Nokia Corporation] 3005 3006 *) Add RFC 3161 compliant time stamp request creation, response generation 3007 and response verification functionality. 3008 [Zolt��n Gl��zik <zglozik@opentsa.org>, The OpenTSA Project] 3009 3010 *) Add initial support for TLS extensions, specifically for the server_name 3011 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 3012 have new members for a host name. The SSL data structure has an 3013 additional member SSL_CTX *initial_ctx so that new sessions can be 3014 stored in that context to allow for session resumption, even after the 3015 SSL has been switched to a new SSL_CTX in reaction to a client's 3016 server_name extension. 3017 3018 New functions (subject to change): 3019 3020 SSL_get_servername() 3021 SSL_get_servername_type() 3022 SSL_set_SSL_CTX() 3023 3024 New CTRL codes and macros (subject to change): 3025 3026 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 3027 - SSL_CTX_set_tlsext_servername_callback() 3028 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 3029 - SSL_CTX_set_tlsext_servername_arg() 3030 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 3031 3032 openssl s_client has a new '-servername ...' option. 3033 3034 openssl s_server has new options '-servername_host ...', '-cert2 ...', 3035 '-key2 ...', '-servername_fatal' (subject to change). This allows 3036 testing the HostName extension for a specific single host name ('-cert' 3037 and '-key' remain fallbacks for handshakes without HostName 3038 negotiation). If the unrecogninzed_name alert has to be sent, this by 3039 default is a warning; it becomes fatal with the '-servername_fatal' 3040 option. 3041 3042 [Peter Sylvester, Remy Allais, Christophe Renou] 3043 3044 *) Whirlpool hash implementation is added. 3045 [Andy Polyakov] 3046 3047 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 3048 bn(64,32). Because of instruction set limitations it doesn't have 3049 any negative impact on performance. This was done mostly in order 3050 to make it possible to share assembler modules, such as bn_mul_mont 3051 implementations, between 32- and 64-bit builds without hassle. 3052 [Andy Polyakov] 3053 3054 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 3055 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 3056 macro. 3057 [Bodo Moeller] 3058 3059 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 3060 dedicated Montgomery multiplication procedure, is introduced. 3061 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 3062 "64-bit" performance on certain 32-bit targets. 3063 [Andy Polyakov] 3064 3065 *) New option SSL_OP_NO_COMP to disable use of compression selectively 3066 in SSL structures. New SSL ctrl to set maximum send fragment size. 3067 Save memory by seeting the I/O buffer sizes dynamically instead of 3068 using the maximum available value. 3069 [Steve Henson] 3070 3071 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 3072 in addition to the text details. 3073 [Bodo Moeller] 3074 3075 *) Very, very preliminary EXPERIMENTAL support for printing of general 3076 ASN1 structures. This currently produces rather ugly output and doesn't 3077 handle several customised structures at all. 3078 [Steve Henson] 3079 3080 *) Integrated support for PVK file format and some related formats such 3081 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 3082 these in the 'rsa' and 'dsa' utilities. 3083 [Steve Henson] 3084 3085 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 3086 [Steve Henson] 3087 3088 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 3089 place for the (very old) "NETSCAPE" format certificates which are now 3090 handled using new ASN1 code equivalents. 3091 [Steve Henson] 3092 3093 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 3094 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 3095 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 3096 [Nils Larsch] 3097 3098 *) Modify CRL distribution points extension code to print out previously 3099 unsupported fields. Enhance extension setting code to allow setting of 3100 all fields. 3101 [Steve Henson] 3102 3103 *) Add print and set support for Issuing Distribution Point CRL extension. 3104 [Steve Henson] 3105 3106 *) Change 'Configure' script to enable Camellia by default. 3107 [NTT] 3108 3109 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 3110 3111 *) When rejecting SSL/TLS records due to an incorrect version number, never 3112 update s->server with a new major version number. As of 3113 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 3114 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 3115 the previous behavior could result in a read attempt at NULL when 3116 receiving specific incorrect SSL/TLS records once record payload 3117 protection is active. (CVE-2010-0740) 3118 [Bodo Moeller, Adam Langley <agl@chromium.org>] 3119 3120 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 3121 could be crashed if the relevant tables were not present (e.g. chrooted). 3122 [Tomas Hoger <thoger@redhat.com>] 3123 3124 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 3125 3126 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 3127 [Martin Olsson, Neel Mehta] 3128 3129 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 3130 accommodate for stack sorting, always a write lock!). 3131 [Bodo Moeller] 3132 3133 *) On some versions of WIN32 Heap32Next is very slow. This can cause 3134 excessive delays in the RAND_poll(): over a minute. As a workaround 3135 include a time check in the inner Heap32Next loop too. 3136 [Steve Henson] 3137 3138 *) The code that handled flushing of data in SSL/TLS originally used the 3139 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 3140 the problem outlined in PR#1949. The fix suggested there however can 3141 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 3142 of Apache). So instead simplify the code to flush unconditionally. 3143 This should be fine since flushing with no data to flush is a no op. 3144 [Steve Henson] 3145 3146 *) Handle TLS versions 2.0 and later properly and correctly use the 3147 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 3148 off ancient servers have a habit of sticking around for a while... 3149 [Steve Henson] 3150 3151 *) Modify compression code so it frees up structures without using the 3152 ex_data callbacks. This works around a problem where some applications 3153 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 3154 restarting) then use compression (e.g. SSL with compression) later. 3155 This results in significant per-connection memory leaks and 3156 has caused some security issues including CVE-2008-1678 and 3157 CVE-2009-4355. 3158 [Steve Henson] 3159 3160 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 3161 change when encrypting or decrypting. 3162 [Bodo Moeller] 3163 3164 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 3165 connect and renegotiate with servers which do not support RI. 3166 Until RI is more widely deployed this option is enabled by default. 3167 [Steve Henson] 3168 3169 *) Add "missing" ssl ctrls to clear options and mode. 3170 [Steve Henson] 3171 3172 *) If client attempts to renegotiate and doesn't support RI respond with 3173 a no_renegotiation alert as required by RFC5746. Some renegotiating 3174 TLS clients will continue a connection gracefully when they receive 3175 the alert. Unfortunately OpenSSL mishandled this alert and would hang 3176 waiting for a server hello which it will never receive. Now we treat a 3177 received no_renegotiation alert as a fatal error. This is because 3178 applications requesting a renegotiation might well expect it to succeed 3179 and would have no code in place to handle the server denying it so the 3180 only safe thing to do is to terminate the connection. 3181 [Steve Henson] 3182 3183 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 3184 peer supports secure renegotiation and 0 otherwise. Print out peer 3185 renegotiation support in s_client/s_server. 3186 [Steve Henson] 3187 3188 *) Replace the highly broken and deprecated SPKAC certification method with 3189 the updated NID creation version. This should correctly handle UTF8. 3190 [Steve Henson] 3191 3192 *) Implement RFC5746. Re-enable renegotiation but require the extension 3193 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 3194 turns out to be a bad idea. It has been replaced by 3195 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 3196 SSL_CTX_set_options(). This is really not recommended unless you 3197 know what you are doing. 3198 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 3199 3200 *) Fixes to stateless session resumption handling. Use initial_ctx when 3201 issuing and attempting to decrypt tickets in case it has changed during 3202 servername handling. Use a non-zero length session ID when attempting 3203 stateless session resumption: this makes it possible to determine if 3204 a resumption has occurred immediately after receiving server hello 3205 (several places in OpenSSL subtly assume this) instead of later in 3206 the handshake. 3207 [Steve Henson] 3208 3209 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 3210 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 3211 fixes for a few places where the return code is not checked 3212 correctly. 3213 [Julia Lawall <julia@diku.dk>] 3214 3215 *) Add --strict-warnings option to Configure script to include devteam 3216 warnings in other configurations. 3217 [Steve Henson] 3218 3219 *) Add support for --libdir option and LIBDIR variable in makefiles. This 3220 makes it possible to install openssl libraries in locations which 3221 have names other than "lib", for example "/usr/lib64" which some 3222 systems need. 3223 [Steve Henson, based on patch from Jeremy Utley] 3224 3225 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 3226 X690 8.9.12 and can produce some misleading textual output of OIDs. 3227 [Steve Henson, reported by Dan Kaminsky] 3228 3229 *) Delete MD2 from algorithm tables. This follows the recommendation in 3230 several standards that it is not used in new applications due to 3231 several cryptographic weaknesses. For binary compatibility reasons 3232 the MD2 API is still compiled in by default. 3233 [Steve Henson] 3234 3235 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 3236 and restored. 3237 [Steve Henson] 3238 3239 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 3240 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 3241 clash. 3242 [Guenter <lists@gknw.net>] 3243 3244 *) Fix the server certificate chain building code to use X509_verify_cert(), 3245 it used to have an ad-hoc builder which was unable to cope with anything 3246 other than a simple chain. 3247 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 3248 3249 *) Don't check self signed certificate signatures in X509_verify_cert() 3250 by default (a flag can override this): it just wastes time without 3251 adding any security. As a useful side effect self signed root CAs 3252 with non-FIPS digests are now usable in FIPS mode. 3253 [Steve Henson] 3254 3255 *) In dtls1_process_out_of_seq_message() the check if the current message 3256 is already buffered was missing. For every new message was memory 3257 allocated, allowing an attacker to perform an denial of service attack 3258 with sending out of seq handshake messages until there is no memory 3259 left. Additionally every future messege was buffered, even if the 3260 sequence number made no sense and would be part of another handshake. 3261 So only messages with sequence numbers less than 10 in advance will be 3262 buffered. (CVE-2009-1378) 3263 [Robin Seggelmann, discovered by Daniel Mentz] 3264 3265 *) Records are buffered if they arrive with a future epoch to be 3266 processed after finishing the corresponding handshake. There is 3267 currently no limitation to this buffer allowing an attacker to perform 3268 a DOS attack with sending records with future epochs until there is no 3269 memory left. This patch adds the pqueue_size() function to detemine 3270 the size of a buffer and limits the record buffer to 100 entries. 3271 (CVE-2009-1377) 3272 [Robin Seggelmann, discovered by Daniel Mentz] 3273 3274 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 3275 parent structure is freed. (CVE-2009-1379) 3276 [Daniel Mentz] 3277 3278 *) Handle non-blocking I/O properly in SSL_shutdown() call. 3279 [Darryl Miles <darryl-mailinglists@netbauds.net>] 3280 3281 *) Add 2.5.4.* OIDs 3282 [Ilya O. <vrghost@gmail.com>] 3283 3284 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 3285 3286 *) Disable renegotiation completely - this fixes a severe security 3287 problem (CVE-2009-3555) at the cost of breaking all 3288 renegotiation. Renegotiation can be re-enabled by setting 3289 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 3290 run-time. This is really not recommended unless you know what 3291 you're doing. 3292 [Ben Laurie] 3293 3294 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 3295 3296 *) Don't set val to NULL when freeing up structures, it is freed up by 3297 underlying code. If sizeof(void *) > sizeof(long) this can result in 3298 zeroing past the valid field. (CVE-2009-0789) 3299 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 3300 3301 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 3302 checked correctly. This would allow some invalid signed attributes to 3303 appear to verify correctly. (CVE-2009-0591) 3304 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3305 3306 *) Reject UniversalString and BMPString types with invalid lengths. This 3307 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 3308 a legal length. (CVE-2009-0590) 3309 [Steve Henson] 3310 3311 *) Set S/MIME signing as the default purpose rather than setting it 3312 unconditionally. This allows applications to override it at the store 3313 level. 3314 [Steve Henson] 3315 3316 *) Permit restricted recursion of ASN1 strings. This is needed in practice 3317 to handle some structures. 3318 [Steve Henson] 3319 3320 *) Improve efficiency of mem_gets: don't search whole buffer each time 3321 for a '\n' 3322 [Jeremy Shapiro <jnshapir@us.ibm.com>] 3323 3324 *) New -hex option for openssl rand. 3325 [Matthieu Herrb] 3326 3327 *) Print out UTF8String and NumericString when parsing ASN1. 3328 [Steve Henson] 3329 3330 *) Support NumericString type for name components. 3331 [Steve Henson] 3332 3333 *) Allow CC in the environment to override the automatically chosen 3334 compiler. Note that nothing is done to ensure flags work with the 3335 chosen compiler. 3336 [Ben Laurie] 3337 3338 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 3339 3340 *) Properly check EVP_VerifyFinal() and similar return values 3341 (CVE-2008-5077). 3342 [Ben Laurie, Bodo Moeller, Google Security Team] 3343 3344 *) Enable TLS extensions by default. 3345 [Ben Laurie] 3346 3347 *) Allow the CHIL engine to be loaded, whether the application is 3348 multithreaded or not. (This does not release the developer from the 3349 obligation to set up the dynamic locking callbacks.) 3350 [Sander Temme <sander@temme.net>] 3351 3352 *) Use correct exit code if there is an error in dgst command. 3353 [Steve Henson; problem pointed out by Roland Dirlewanger] 3354 3355 *) Tweak Configure so that you need to say "experimental-jpake" to enable 3356 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 3357 [Bodo Moeller] 3358 3359 *) Add experimental JPAKE support, including demo authentication in 3360 s_client and s_server. 3361 [Ben Laurie] 3362 3363 *) Set the comparison function in v3_addr_canonize(). 3364 [Rob Austein <sra@hactrn.net>] 3365 3366 *) Add support for XMPP STARTTLS in s_client. 3367 [Philip Paeps <philip@freebsd.org>] 3368 3369 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 3370 to ensure that even with this option, only ciphersuites in the 3371 server's preference list will be accepted. (Note that the option 3372 applies only when resuming a session, so the earlier behavior was 3373 just about the algorithm choice for symmetric cryptography.) 3374 [Bodo Moeller] 3375 3376 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 3377 3378 *) Fix NULL pointer dereference if a DTLS server received 3379 ChangeCipherSpec as first record (CVE-2009-1386). 3380 [PR #1679] 3381 3382 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 3383 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 3384 [Nagendra Modadugu] 3385 3386 *) The fix in 0.9.8c that supposedly got rid of unsafe 3387 double-checked locking was incomplete for RSA blinding, 3388 addressing just one layer of what turns out to have been 3389 doubly unsafe triple-checked locking. 3390 3391 So now fix this for real by retiring the MONT_HELPER macro 3392 in crypto/rsa/rsa_eay.c. 3393 3394 [Bodo Moeller; problem pointed out by Marius Schilder] 3395 3396 *) Various precautionary measures: 3397 3398 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 3399 3400 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 3401 (NB: This would require knowledge of the secret session ticket key 3402 to exploit, in which case you'd be SOL either way.) 3403 3404 - Change bn_nist.c so that it will properly handle input BIGNUMs 3405 outside the expected range. 3406 3407 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 3408 builds. 3409 3410 [Neel Mehta, Bodo Moeller] 3411 3412 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 3413 the load fails. Useful for distros. 3414 [Ben Laurie and the FreeBSD team] 3415 3416 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 3417 [Steve Henson] 3418 3419 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 3420 [Huang Ying] 3421 3422 *) Expand ENGINE to support engine supplied SSL client certificate functions. 3423 3424 This work was sponsored by Logica. 3425 [Steve Henson] 3426 3427 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 3428 keystores. Support for SSL/TLS client authentication too. 3429 Not compiled unless enable-capieng specified to Configure. 3430 3431 This work was sponsored by Logica. 3432 [Steve Henson] 3433 3434 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 3435 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 3436 attribute creation routines such as certifcate requests and PKCS#12 3437 files. 3438 [Steve Henson] 3439 3440 Changes between 0.9.8g and 0.9.8h [28 May 2008] 3441 3442 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 3443 handshake which could lead to a cilent crash as found using the 3444 Codenomicon TLS test suite (CVE-2008-1672) 3445 [Steve Henson, Mark Cox] 3446 3447 *) Fix double free in TLS server name extensions which could lead to 3448 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 3449 [Joe Orton] 3450 3451 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 3452 3453 Clear the error queue to ensure that error entries left from 3454 older function calls do not interfere with the correct operation. 3455 [Lutz Jaenicke, Erik de Castro Lopo] 3456 3457 *) Remove root CA certificates of commercial CAs: 3458 3459 The OpenSSL project does not recommend any specific CA and does not 3460 have any policy with respect to including or excluding any CA. 3461 Therefore it does not make any sense to ship an arbitrary selection 3462 of root CA certificates with the OpenSSL software. 3463 [Lutz Jaenicke] 3464 3465 *) RSA OAEP patches to fix two separate invalid memory reads. 3466 The first one involves inputs when 'lzero' is greater than 3467 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 3468 before the beginning of from). The second one involves inputs where 3469 the 'db' section contains nothing but zeroes (there is a one-byte 3470 invalid read after the end of 'db'). 3471 [Ivan Nestlerode <inestlerode@us.ibm.com>] 3472 3473 *) Partial backport from 0.9.9-dev: 3474 3475 Introduce bn_mul_mont (dedicated Montgomery multiplication 3476 procedure) as a candidate for BIGNUM assembler implementation. 3477 While 0.9.9-dev uses assembler for various architectures, only 3478 x86_64 is available by default here in the 0.9.8 branch, and 3479 32-bit x86 is available through a compile-time setting. 3480 3481 To try the 32-bit x86 assembler implementation, use Configure 3482 option "enable-montasm" (which exists only for this backport). 3483 3484 As "enable-montasm" for 32-bit x86 disclaims code stability 3485 anyway, in this constellation we activate additional code 3486 backported from 0.9.9-dev for further performance improvements, 3487 namely BN_from_montgomery_word. (To enable this otherwise, 3488 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 3489 3490 [Andy Polyakov (backport partially by Bodo Moeller)] 3491 3492 *) Add TLS session ticket callback. This allows an application to set 3493 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 3494 values. This is useful for key rollover for example where several key 3495 sets may exist with different names. 3496 [Steve Henson] 3497 3498 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 3499 This was broken until now in 0.9.8 releases, such that the only way 3500 a registered ENGINE could be used (assuming it initialises 3501 successfully on the host) was to explicitly set it as the default 3502 for the relevant algorithms. This is in contradiction with 0.9.7 3503 behaviour and the documentation. With this fix, when an ENGINE is 3504 registered into a given algorithm's table of implementations, the 3505 'uptodate' flag is reset so that auto-discovery will be used next 3506 time a new context for that algorithm attempts to select an 3507 implementation. 3508 [Ian Lister (tweaked by Geoff Thorpe)] 3509 3510 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 3511 implemention in the following ways: 3512 3513 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 3514 hard coded. 3515 3516 Lack of BER streaming support means one pass streaming processing is 3517 only supported if data is detached: setting the streaming flag is 3518 ignored for embedded content. 3519 3520 CMS support is disabled by default and must be explicitly enabled 3521 with the enable-cms configuration option. 3522 [Steve Henson] 3523 3524 *) Update the GMP engine glue to do direct copies between BIGNUM and 3525 mpz_t when openssl and GMP use the same limb size. Otherwise the 3526 existing "conversion via a text string export" trick is still used. 3527 [Paul Sheer <paulsheer@gmail.com>] 3528 3529 *) Zlib compression BIO. This is a filter BIO which compressed and 3530 uncompresses any data passed through it. 3531 [Steve Henson] 3532 3533 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 3534 RFC3394 compatible AES key wrapping. 3535 [Steve Henson] 3536 3537 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 3538 sets string data without copying. X509_ALGOR_set0() and 3539 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 3540 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 3541 from an X509_ATTRIBUTE structure optionally checking it occurs only 3542 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 3543 data. 3544 [Steve Henson] 3545 3546 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 3547 to get the expected BN_FLG_CONSTTIME behavior. 3548 [Bodo Moeller (Google)] 3549 3550 *) Netware support: 3551 3552 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 3553 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 3554 - added some more tests to do_tests.pl 3555 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 3556 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 3557 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 3558 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 3559 - various changes to netware.pl to enable gcc-cross builds on Win32 3560 platform 3561 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 3562 - various changes to fix missing prototype warnings 3563 - fixed x86nasm.pl to create correct asm files for NASM COFF output 3564 - added AES, WHIRLPOOL and CPUID assembler code to build files 3565 - added missing AES assembler make rules to mk1mf.pl 3566 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 3567 [Guenter Knauf <eflash@gmx.net>] 3568 3569 *) Implement certificate status request TLS extension defined in RFC3546. 3570 A client can set the appropriate parameters and receive the encoded 3571 OCSP response via a callback. A server can query the supplied parameters 3572 and set the encoded OCSP response in the callback. Add simplified examples 3573 to s_client and s_server. 3574 [Steve Henson] 3575 3576 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 3577 3578 *) Fix various bugs: 3579 + Binary incompatibility of ssl_ctx_st structure 3580 + DTLS interoperation with non-compliant servers 3581 + Don't call get_session_cb() without proposed session 3582 + Fix ia64 assembler code 3583 [Andy Polyakov, Steve Henson] 3584 3585 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 3586 3587 *) DTLS Handshake overhaul. There were longstanding issues with 3588 OpenSSL DTLS implementation, which were making it impossible for 3589 RFC 4347 compliant client to communicate with OpenSSL server. 3590 Unfortunately just fixing these incompatibilities would "cut off" 3591 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 3592 server keeps tolerating non RFC compliant syntax. The opposite is 3593 not true, 0.9.8f client can not communicate with earlier server. 3594 This update even addresses CVE-2007-4995. 3595 [Andy Polyakov] 3596 3597 *) Changes to avoid need for function casts in OpenSSL: some compilers 3598 (gcc 4.2 and later) reject their use. 3599 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 3600 Steve Henson] 3601 3602 *) Add RFC4507 support to OpenSSL. This includes the corrections in 3603 RFC4507bis. The encrypted ticket format is an encrypted encoded 3604 SSL_SESSION structure, that way new session features are automatically 3605 supported. 3606 3607 If a client application caches session in an SSL_SESSION structure 3608 support is transparent because tickets are now stored in the encoded 3609 SSL_SESSION. 3610 3611 The SSL_CTX structure automatically generates keys for ticket 3612 protection in servers so again support should be possible 3613 with no application modification. 3614 3615 If a client or server wishes to disable RFC4507 support then the option 3616 SSL_OP_NO_TICKET can be set. 3617 3618 Add a TLS extension debugging callback to allow the contents of any client 3619 or server extensions to be examined. 3620 3621 This work was sponsored by Google. 3622 [Steve Henson] 3623 3624 *) Add initial support for TLS extensions, specifically for the server_name 3625 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 3626 have new members for a host name. The SSL data structure has an 3627 additional member SSL_CTX *initial_ctx so that new sessions can be 3628 stored in that context to allow for session resumption, even after the 3629 SSL has been switched to a new SSL_CTX in reaction to a client's 3630 server_name extension. 3631 3632 New functions (subject to change): 3633 3634 SSL_get_servername() 3635 SSL_get_servername_type() 3636 SSL_set_SSL_CTX() 3637 3638 New CTRL codes and macros (subject to change): 3639 3640 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 3641 - SSL_CTX_set_tlsext_servername_callback() 3642 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 3643 - SSL_CTX_set_tlsext_servername_arg() 3644 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 3645 3646 openssl s_client has a new '-servername ...' option. 3647 3648 openssl s_server has new options '-servername_host ...', '-cert2 ...', 3649 '-key2 ...', '-servername_fatal' (subject to change). This allows 3650 testing the HostName extension for a specific single host name ('-cert' 3651 and '-key' remain fallbacks for handshakes without HostName 3652 negotiation). If the unrecogninzed_name alert has to be sent, this by 3653 default is a warning; it becomes fatal with the '-servername_fatal' 3654 option. 3655 3656 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 3657 3658 *) Add AES and SSE2 assembly language support to VC++ build. 3659 [Steve Henson] 3660 3661 *) Mitigate attack on final subtraction in Montgomery reduction. 3662 [Andy Polyakov] 3663 3664 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 3665 (which previously caused an internal error). 3666 [Bodo Moeller] 3667 3668 *) Squeeze another 10% out of IGE mode when in != out. 3669 [Ben Laurie] 3670 3671 *) AES IGE mode speedup. 3672 [Dean Gaudet (Google)] 3673 3674 *) Add the Korean symmetric 128-bit cipher SEED (see 3675 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 3676 add SEED ciphersuites from RFC 4162: 3677 3678 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 3679 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 3680 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 3681 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 3682 3683 To minimize changes between patchlevels in the OpenSSL 0.9.8 3684 series, SEED remains excluded from compilation unless OpenSSL 3685 is configured with 'enable-seed'. 3686 [KISA, Bodo Moeller] 3687 3688 *) Mitigate branch prediction attacks, which can be practical if a 3689 single processor is shared, allowing a spy process to extract 3690 information. For detailed background information, see 3691 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 3692 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 3693 and Necessary Software Countermeasures"). The core of the change 3694 are new versions BN_div_no_branch() and 3695 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 3696 respectively, which are slower, but avoid the security-relevant 3697 conditional branches. These are automatically called by BN_div() 3698 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 3699 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 3700 remove a conditional branch. 3701 3702 BN_FLG_CONSTTIME is the new name for the previous 3703 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 3704 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 3705 in the exponent causes BN_mod_exp_mont() to use the alternative 3706 implementation in BN_mod_exp_mont_consttime().) The old name 3707 remains as a deprecated alias. 3708 3709 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 3710 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 3711 constant-time implementations for more than just exponentiation. 3712 Here too the old name is kept as a deprecated alias. 3713 3714 BN_BLINDING_new() will now use BN_dup() for the modulus so that 3715 the BN_BLINDING structure gets an independent copy of the 3716 modulus. This means that the previous "BIGNUM *m" argument to 3717 BN_BLINDING_new() and to BN_BLINDING_create_param() now 3718 essentially becomes "const BIGNUM *m", although we can't actually 3719 change this in the header file before 0.9.9. It allows 3720 RSA_setup_blinding() to use BN_with_flags() on the modulus to 3721 enable BN_FLG_CONSTTIME. 3722 3723 [Matthew D Wood (Intel Corp)] 3724 3725 *) In the SSL/TLS server implementation, be strict about session ID 3726 context matching (which matters if an application uses a single 3727 external cache for different purposes). Previously, 3728 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 3729 set. This did ensure strict client verification, but meant that, 3730 with applications using a single external cache for quite 3731 different requirements, clients could circumvent ciphersuite 3732 restrictions for a given session ID context by starting a session 3733 in a different context. 3734 [Bodo Moeller] 3735 3736 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3737 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3738 authentication-only ciphersuites. 3739 [Bodo Moeller] 3740 3741 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 3742 not complete and could lead to a possible single byte overflow 3743 (CVE-2007-5135) [Ben Laurie] 3744 3745 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 3746 3747 *) Since AES128 and AES256 (and similarly Camellia128 and 3748 Camellia256) share a single mask bit in the logic of 3749 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3750 kludge to work properly if AES128 is available and AES256 isn't 3751 (or if Camellia128 is available and Camellia256 isn't). 3752 [Victor Duchovni] 3753 3754 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 3755 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 3756 When a point or a seed is encoded in a BIT STRING, we need to 3757 prevent the removal of trailing zero bits to get the proper DER 3758 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 3759 of a NamedBitList, for which trailing 0 bits need to be removed.) 3760 [Bodo Moeller] 3761 3762 *) Have SSL/TLS server implementation tolerate "mismatched" record 3763 protocol version while receiving ClientHello even if the 3764 ClientHello is fragmented. (The server can't insist on the 3765 particular protocol version it has chosen before the ServerHello 3766 message has informed the client about his choice.) 3767 [Bodo Moeller] 3768 3769 *) Add RFC 3779 support. 3770 [Rob Austein for ARIN, Ben Laurie] 3771 3772 *) Load error codes if they are not already present instead of using a 3773 static variable. This allows them to be cleanly unloaded and reloaded. 3774 Improve header file function name parsing. 3775 [Steve Henson] 3776 3777 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 3778 or CAPABILITY handshake as required by RFCs. 3779 [Goetz Babin-Ebell] 3780 3781 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 3782 3783 *) Introduce limits to prevent malicious keys being able to 3784 cause a denial of service. (CVE-2006-2940) 3785 [Steve Henson, Bodo Moeller] 3786 3787 *) Fix ASN.1 parsing of certain invalid structures that can result 3788 in a denial of service. (CVE-2006-2937) [Steve Henson] 3789 3790 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3791 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3792 3793 *) Fix SSL client code which could crash if connecting to a 3794 malicious SSLv2 server. (CVE-2006-4343) 3795 [Tavis Ormandy and Will Drewry, Google Security Team] 3796 3797 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 3798 match only those. Before that, "AES256-SHA" would be interpreted 3799 as a pattern and match "AES128-SHA" too (since AES128-SHA got 3800 the same strength classification in 0.9.7h) as we currently only 3801 have a single AES bit in the ciphersuite description bitmap. 3802 That change, however, also applied to ciphersuite strings such as 3803 "RC4-MD5" that intentionally matched multiple ciphersuites -- 3804 namely, SSL 2.0 ciphersuites in addition to the more common ones 3805 from SSL 3.0/TLS 1.0. 3806 3807 So we change the selection algorithm again: Naming an explicit 3808 ciphersuite selects this one ciphersuite, and any other similar 3809 ciphersuite (same bitmap) from *other* protocol versions. 3810 Thus, "RC4-MD5" again will properly select both the SSL 2.0 3811 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 3812 3813 Since SSL 2.0 does not have any ciphersuites for which the 3814 128/256 bit distinction would be relevant, this works for now. 3815 The proper fix will be to use different bits for AES128 and 3816 AES256, which would have avoided the problems from the beginning; 3817 however, bits are scarce, so we can only do this in a new release 3818 (not just a patchlevel) when we can change the SSL_CIPHER 3819 definition to split the single 'unsigned long mask' bitmap into 3820 multiple values to extend the available space. 3821 3822 [Bodo Moeller] 3823 3824 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 3825 3826 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3827 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3828 3829 *) Add AES IGE and biIGE modes. 3830 [Ben Laurie] 3831 3832 *) Change the Unix randomness entropy gathering to use poll() when 3833 possible instead of select(), since the latter has some 3834 undesirable limitations. 3835 [Darryl Miles via Richard Levitte and Bodo Moeller] 3836 3837 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 3838 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 3839 cannot be implicitly activated as part of, e.g., the "AES" alias. 3840 However, please upgrade to OpenSSL 0.9.9[-dev] for 3841 non-experimental use of the ECC ciphersuites to get TLS extension 3842 support, which is required for curve and point format negotiation 3843 to avoid potential handshake problems. 3844 [Bodo Moeller] 3845 3846 *) Disable rogue ciphersuites: 3847 3848 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3849 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3850 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3851 3852 The latter two were purportedly from 3853 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3854 appear there. 3855 3856 Also deactivate the remaining ciphersuites from 3857 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3858 unofficial, and the ID has long expired. 3859 [Bodo Moeller] 3860 3861 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3862 dual-core machines) and other potential thread-safety issues. 3863 [Bodo Moeller] 3864 3865 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 3866 versions), which is now available for royalty-free use 3867 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 3868 Also, add Camellia TLS ciphersuites from RFC 4132. 3869 3870 To minimize changes between patchlevels in the OpenSSL 0.9.8 3871 series, Camellia remains excluded from compilation unless OpenSSL 3872 is configured with 'enable-camellia'. 3873 [NTT] 3874 3875 *) Disable the padding bug check when compression is in use. The padding 3876 bug check assumes the first packet is of even length, this is not 3877 necessarily true if compresssion is enabled and can result in false 3878 positives causing handshake failure. The actual bug test is ancient 3879 code so it is hoped that implementations will either have fixed it by 3880 now or any which still have the bug do not support compression. 3881 [Steve Henson] 3882 3883 Changes between 0.9.8a and 0.9.8b [04 May 2006] 3884 3885 *) When applying a cipher rule check to see if string match is an explicit 3886 cipher suite and only match that one cipher suite if it is. 3887 [Steve Henson] 3888 3889 *) Link in manifests for VC++ if needed. 3890 [Austin Ziegler <halostatue@gmail.com>] 3891 3892 *) Update support for ECC-based TLS ciphersuites according to 3893 draft-ietf-tls-ecc-12.txt with proposed changes (but without 3894 TLS extensions, which are supported starting with the 0.9.9 3895 branch, not in the OpenSSL 0.9.8 branch). 3896 [Douglas Stebila] 3897 3898 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 3899 opaque EVP_CIPHER_CTX handling. 3900 [Steve Henson] 3901 3902 *) Fixes and enhancements to zlib compression code. We now only use 3903 "zlib1.dll" and use the default __cdecl calling convention on Win32 3904 to conform with the standards mentioned here: 3905 http://www.zlib.net/DLL_FAQ.txt 3906 Static zlib linking now works on Windows and the new --with-zlib-include 3907 --with-zlib-lib options to Configure can be used to supply the location 3908 of the headers and library. Gracefully handle case where zlib library 3909 can't be loaded. 3910 [Steve Henson] 3911 3912 *) Several fixes and enhancements to the OID generation code. The old code 3913 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 3914 handle numbers larger than ULONG_MAX, truncated printing and had a 3915 non standard OBJ_obj2txt() behaviour. 3916 [Steve Henson] 3917 3918 *) Add support for building of engines under engine/ as shared libraries 3919 under VC++ build system. 3920 [Steve Henson] 3921 3922 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 3923 Hopefully, we will not see any false combination of paths any more. 3924 [Richard Levitte] 3925 3926 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 3927 3928 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3929 (part of SSL_OP_ALL). This option used to disable the 3930 countermeasure against man-in-the-middle protocol-version 3931 rollback in the SSL 2.0 server implementation, which is a bad 3932 idea. (CVE-2005-2969) 3933 3934 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3935 for Information Security, National Institute of Advanced Industrial 3936 Science and Technology [AIST], Japan)] 3937 3938 *) Add two function to clear and return the verify parameter flags. 3939 [Steve Henson] 3940 3941 *) Keep cipherlists sorted in the source instead of sorting them at 3942 runtime, thus removing the need for a lock. 3943 [Nils Larsch] 3944 3945 *) Avoid some small subgroup attacks in Diffie-Hellman. 3946 [Nick Mathewson and Ben Laurie] 3947 3948 *) Add functions for well-known primes. 3949 [Nick Mathewson] 3950 3951 *) Extended Windows CE support. 3952 [Satoshi Nakamura and Andy Polyakov] 3953 3954 *) Initialize SSL_METHOD structures at compile time instead of during 3955 runtime, thus removing the need for a lock. 3956 [Steve Henson] 3957 3958 *) Make PKCS7_decrypt() work even if no certificate is supplied by 3959 attempting to decrypt each encrypted key in turn. Add support to 3960 smime utility. 3961 [Steve Henson] 3962 3963 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 3964 3965 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 3966 OpenSSL 0.9.8.] 3967 3968 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 3969 [Richard Levitte] 3970 3971 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 3972 key into the same file any more. 3973 [Richard Levitte] 3974 3975 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 3976 [Andy Polyakov] 3977 3978 *) Add -utf8 command line and config file option to 'ca'. 3979 [Stefan <stf@udoma.org] 3980 3981 *) Removed the macro des_crypt(), as it seems to conflict with some 3982 libraries. Use DES_crypt(). 3983 [Richard Levitte] 3984 3985 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 3986 involves renaming the source and generated shared-libs for 3987 both. The engines will accept the corrected or legacy ids 3988 ('ncipher' and '4758_cca' respectively) when binding. NB, 3989 this only applies when building 'shared'. 3990 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 3991 3992 *) Add attribute functions to EVP_PKEY structure. Modify 3993 PKCS12_create() to recognize a CSP name attribute and 3994 use it. Make -CSP option work again in pkcs12 utility. 3995 [Steve Henson] 3996 3997 *) Add new functionality to the bn blinding code: 3998 - automatic re-creation of the BN_BLINDING parameters after 3999 a fixed number of uses (currently 32) 4000 - add new function for parameter creation 4001 - introduce flags to control the update behaviour of the 4002 BN_BLINDING parameters 4003 - hide BN_BLINDING structure 4004 Add a second BN_BLINDING slot to the RSA structure to improve 4005 performance when a single RSA object is shared among several 4006 threads. 4007 [Nils Larsch] 4008 4009 *) Add support for DTLS. 4010 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 4011 4012 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 4013 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 4014 [Walter Goulet] 4015 4016 *) Remove buggy and incompletet DH cert support from 4017 ssl/ssl_rsa.c and ssl/s3_both.c 4018 [Nils Larsch] 4019 4020 *) Use SHA-1 instead of MD5 as the default digest algorithm for 4021 the apps/openssl applications. 4022 [Nils Larsch] 4023 4024 *) Compile clean with "-Wall -Wmissing-prototypes 4025 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 4026 DEBUG_SAFESTACK must also be set. 4027 [Ben Laurie] 4028 4029 *) Change ./Configure so that certain algorithms can be disabled by default. 4030 The new counterpiece to "no-xxx" is "enable-xxx". 4031 4032 The patented RC5 and MDC2 algorithms will now be disabled unless 4033 "enable-rc5" and "enable-mdc2", respectively, are specified. 4034 4035 (IDEA remains enabled despite being patented. This is because IDEA 4036 is frequently required for interoperability, and there is no license 4037 fee for non-commercial use. As before, "no-idea" can be used to 4038 avoid this algorithm.) 4039 4040 [Bodo Moeller] 4041 4042 *) Add processing of proxy certificates (see RFC 3820). This work was 4043 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 4044 EGEE (Enabling Grids for E-science in Europe). 4045 [Richard Levitte] 4046 4047 *) RC4 performance overhaul on modern architectures/implementations, such 4048 as Intel P4, IA-64 and AMD64. 4049 [Andy Polyakov] 4050 4051 *) New utility extract-section.pl. This can be used specify an alternative 4052 section number in a pod file instead of having to treat each file as 4053 a separate case in Makefile. This can be done by adding two lines to the 4054 pod file: 4055 4056 =for comment openssl_section:XXX 4057 4058 The blank line is mandatory. 4059 4060 [Steve Henson] 4061 4062 *) New arguments -certform, -keyform and -pass for s_client and s_server 4063 to allow alternative format key and certificate files and passphrase 4064 sources. 4065 [Steve Henson] 4066 4067 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 4068 update associated structures and add various utility functions. 4069 4070 Add new policy related verify parameters, include policy checking in 4071 standard verify code. Enhance 'smime' application with extra parameters 4072 to support policy checking and print out. 4073 [Steve Henson] 4074 4075 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 4076 Nehemiah processors. These extensions support AES encryption in hardware 4077 as well as RNG (though RNG support is currently disabled). 4078 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 4079 4080 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 4081 [Geoff Thorpe] 4082 4083 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 4084 [Andy Polyakov and a number of other people] 4085 4086 *) Improved PowerPC platform support. Most notably BIGNUM assembler 4087 implementation contributed by IBM. 4088 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 4089 4090 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 4091 exponent rather than 'unsigned long'. There is a corresponding change to 4092 the new 'rsa_keygen' element of the RSA_METHOD structure. 4093 [Jelte Jansen, Geoff Thorpe] 4094 4095 *) Functionality for creating the initial serial number file is now 4096 moved from CA.pl to the 'ca' utility with a new option -create_serial. 4097 4098 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 4099 number file to 1, which is bound to cause problems. To avoid 4100 the problems while respecting compatibility between different 0.9.7 4101 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 4102 CA.pl for serial number initialization. With the new release 0.9.8, 4103 we can fix the problem directly in the 'ca' utility.) 4104 [Steve Henson] 4105 4106 *) Reduced header interdepencies by declaring more opaque objects in 4107 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 4108 give fewer recursive includes, which could break lazy source code - so 4109 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 4110 developers should define this symbol when building and using openssl to 4111 ensure they track the recommended behaviour, interfaces, [etc], but 4112 backwards-compatible behaviour prevails when this isn't defined. 4113 [Geoff Thorpe] 4114 4115 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 4116 [Steve Henson] 4117 4118 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 4119 This will generate a random key of the appropriate length based on the 4120 cipher context. The EVP_CIPHER can provide its own random key generation 4121 routine to support keys of a specific form. This is used in the des and 4122 3des routines to generate a key of the correct parity. Update S/MIME 4123 code to use new functions and hence generate correct parity DES keys. 4124 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 4125 valid (weak or incorrect parity). 4126 [Steve Henson] 4127 4128 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 4129 as looking them up. This is useful when the verified structure may contain 4130 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 4131 present unless the new PKCS7_NO_CRL flag is asserted. 4132 [Steve Henson] 4133 4134 *) Extend ASN1 oid configuration module. It now additionally accepts the 4135 syntax: 4136 4137 shortName = some long name, 1.2.3.4 4138 [Steve Henson] 4139 4140 *) Reimplemented the BN_CTX implementation. There is now no more static 4141 limitation on the number of variables it can handle nor the depth of the 4142 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 4143 information can now expand as required, and rather than having a single 4144 static array of bignums, BN_CTX now uses a linked-list of such arrays 4145 allowing it to expand on demand whilst maintaining the usefulness of 4146 BN_CTX's "bundling". 4147 [Geoff Thorpe] 4148 4149 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 4150 to allow all RSA operations to function using a single BN_CTX. 4151 [Geoff Thorpe] 4152 4153 *) Preliminary support for certificate policy evaluation and checking. This 4154 is initially intended to pass the tests outlined in "Conformance Testing 4155 of Relying Party Client Certificate Path Processing Logic" v1.07. 4156 [Steve Henson] 4157 4158 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 4159 remained unused and not that useful. A variety of other little bignum 4160 tweaks and fixes have also been made continuing on from the audit (see 4161 below). 4162 [Geoff Thorpe] 4163 4164 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 4165 associated ASN1, EVP and SSL functions and old ASN1 macros. 4166 [Richard Levitte] 4167 4168 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 4169 and this should never fail. So the return value from the use of 4170 BN_set_word() (which can fail due to needless expansion) is now deprecated; 4171 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 4172 [Geoff Thorpe] 4173 4174 *) BN_CTX_get() should return zero-valued bignums, providing the same 4175 initialised value as BN_new(). 4176 [Geoff Thorpe, suggested by Ulf M��ller] 4177 4178 *) Support for inhibitAnyPolicy certificate extension. 4179 [Steve Henson] 4180 4181 *) An audit of the BIGNUM code is underway, for which debugging code is 4182 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 4183 is considered valid when processing BIGNUMs, and causes execution to 4184 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 4185 further steps are taken to deliberately pollute unused data in BIGNUM 4186 structures to try and expose faulty code further on. For now, openssl will 4187 (in its default mode of operation) continue to tolerate the inconsistent 4188 forms that it has tolerated in the past, but authors and packagers should 4189 consider trying openssl and their own applications when compiled with 4190 these debugging symbols defined. It will help highlight potential bugs in 4191 their own code, and will improve the test coverage for OpenSSL itself. At 4192 some point, these tighter rules will become openssl's default to improve 4193 maintainability, though the assert()s and other overheads will remain only 4194 in debugging configurations. See bn.h for more details. 4195 [Geoff Thorpe, Nils Larsch, Ulf M��ller] 4196 4197 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 4198 that can only be obtained through BN_CTX_new() (which implicitly 4199 initialises it). The presence of this function only made it possible 4200 to overwrite an existing structure (and cause memory leaks). 4201 [Geoff Thorpe] 4202 4203 *) Because of the callback-based approach for implementing LHASH as a 4204 template type, lh_insert() adds opaque objects to hash-tables and 4205 lh_doall() or lh_doall_arg() are typically used with a destructor callback 4206 to clean up those corresponding objects before destroying the hash table 4207 (and losing the object pointers). So some over-zealous constifications in 4208 LHASH have been relaxed so that lh_insert() does not take (nor store) the 4209 objects as "const" and the lh_doall[_arg] callback wrappers are not 4210 prototyped to have "const" restrictions on the object pointers they are 4211 given (and so aren't required to cast them away any more). 4212 [Geoff Thorpe] 4213 4214 *) The tmdiff.h API was so ugly and minimal that our own timing utility 4215 (speed) prefers to use its own implementation. The two implementations 4216 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 4217 its object type properly exposed (MS_TM) instead of casting to/from "char 4218 *". This may still change yet if someone realises MS_TM and "ms_time_***" 4219 aren't necessarily the greatest nomenclatures - but this is what was used 4220 internally to the implementation so I've used that for now. 4221 [Geoff Thorpe] 4222 4223 *) Ensure that deprecated functions do not get compiled when 4224 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 4225 the self-tests were still using deprecated key-generation functions so 4226 these have been updated also. 4227 [Geoff Thorpe] 4228 4229 *) Reorganise PKCS#7 code to separate the digest location functionality 4230 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 4231 New function PKCS7_set_digest() to set the digest type for PKCS#7 4232 digestedData type. Add additional code to correctly generate the 4233 digestedData type and add support for this type in PKCS7 initialization 4234 functions. 4235 [Steve Henson] 4236 4237 *) New function PKCS7_set0_type_other() this initializes a PKCS7 4238 structure of type "other". 4239 [Steve Henson] 4240 4241 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 4242 sure the loop does correctly stop and breaking ("division by zero") 4243 modulus operations are not performed. The (pre-generated) prime 4244 table crypto/bn/bn_prime.h was already correct, but it could not be 4245 re-generated on some platforms because of the "division by zero" 4246 situation in the script. 4247 [Ralf S. Engelschall] 4248 4249 *) Update support for ECC-based TLS ciphersuites according to 4250 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 4251 SHA-1 now is only used for "small" curves (where the 4252 representation of a field element takes up to 24 bytes); for 4253 larger curves, the field element resulting from ECDH is directly 4254 used as premaster secret. 4255 [Douglas Stebila (Sun Microsystems Laboratories)] 4256 4257 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 4258 curve secp160r1 to the tests. 4259 [Douglas Stebila (Sun Microsystems Laboratories)] 4260 4261 *) Add the possibility to load symbols globally with DSO. 4262 [G��tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 4263 4264 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 4265 control of the error stack. 4266 [Richard Levitte] 4267 4268 *) Add support for STORE in ENGINE. 4269 [Richard Levitte] 4270 4271 *) Add the STORE type. The intention is to provide a common interface 4272 to certificate and key stores, be they simple file-based stores, or 4273 HSM-type store, or LDAP stores, or... 4274 NOTE: The code is currently UNTESTED and isn't really used anywhere. 4275 [Richard Levitte] 4276 4277 *) Add a generic structure called OPENSSL_ITEM. This can be used to 4278 pass a list of arguments to any function as well as provide a way 4279 for a function to pass data back to the caller. 4280 [Richard Levitte] 4281 4282 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 4283 works like BUF_strdup() but can be used to duplicate a portion of 4284 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 4285 a memory area. 4286 [Richard Levitte] 4287 4288 *) Add the function sk_find_ex() which works like sk_find(), but will 4289 return an index to an element even if an exact match couldn't be 4290 found. The index is guaranteed to point at the element where the 4291 searched-for key would be inserted to preserve sorting order. 4292 [Richard Levitte] 4293 4294 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 4295 takes an extra flags argument for optional functionality. Currently, 4296 the following flags are defined: 4297 4298 OBJ_BSEARCH_VALUE_ON_NOMATCH 4299 This one gets OBJ_bsearch_ex() to return a pointer to the first 4300 element where the comparing function returns a negative or zero 4301 number. 4302 4303 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 4304 This one gets OBJ_bsearch_ex() to return a pointer to the first 4305 element where the comparing function returns zero. This is useful 4306 if there are more than one element where the comparing function 4307 returns zero. 4308 [Richard Levitte] 4309 4310 *) Make it possible to create self-signed certificates with 'openssl ca' 4311 in such a way that the self-signed certificate becomes part of the 4312 CA database and uses the same mechanisms for serial number generation 4313 as all other certificate signing. The new flag '-selfsign' enables 4314 this functionality. Adapt CA.sh and CA.pl.in. 4315 [Richard Levitte] 4316 4317 *) Add functionality to check the public key of a certificate request 4318 against a given private. This is useful to check that a certificate 4319 request can be signed by that key (self-signing). 4320 [Richard Levitte] 4321 4322 *) Make it possible to have multiple active certificates with the same 4323 subject in the CA index file. This is done only if the keyword 4324 'unique_subject' is set to 'no' in the main CA section (default 4325 if 'CA_default') of the configuration file. The value is saved 4326 with the database itself in a separate index attribute file, 4327 named like the index file with '.attr' appended to the name. 4328 [Richard Levitte] 4329 4330 *) Generate muti valued AVAs using '+' notation in config files for 4331 req and dirName. 4332 [Steve Henson] 4333 4334 *) Support for nameConstraints certificate extension. 4335 [Steve Henson] 4336 4337 *) Support for policyConstraints certificate extension. 4338 [Steve Henson] 4339 4340 *) Support for policyMappings certificate extension. 4341 [Steve Henson] 4342 4343 *) Make sure the default DSA_METHOD implementation only uses its 4344 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 4345 and change its own handlers to be NULL so as to remove unnecessary 4346 indirection. This lets alternative implementations fallback to the 4347 default implementation more easily. 4348 [Geoff Thorpe] 4349 4350 *) Support for directoryName in GeneralName related extensions 4351 in config files. 4352 [Steve Henson] 4353 4354 *) Make it possible to link applications using Makefile.shared. 4355 Make that possible even when linking against static libraries! 4356 [Richard Levitte] 4357 4358 *) Support for single pass processing for S/MIME signing. This now 4359 means that S/MIME signing can be done from a pipe, in addition 4360 cleartext signing (multipart/signed type) is effectively streaming 4361 and the signed data does not need to be all held in memory. 4362 4363 This is done with a new flag PKCS7_STREAM. When this flag is set 4364 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 4365 is done after the data is output (and digests calculated) in 4366 SMIME_write_PKCS7(). 4367 [Steve Henson] 4368 4369 *) Add full support for -rpath/-R, both in shared libraries and 4370 applications, at least on the platforms where it's known how 4371 to do it. 4372 [Richard Levitte] 4373 4374 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 4375 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 4376 will now compute a table of multiples of the generator that 4377 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 4378 faster (notably in the case of a single point multiplication, 4379 scalar * generator). 4380 [Nils Larsch, Bodo Moeller] 4381 4382 *) IPv6 support for certificate extensions. The various extensions 4383 which use the IP:a.b.c.d can now take IPv6 addresses using the 4384 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 4385 correctly. 4386 [Steve Henson] 4387 4388 *) Added an ENGINE that implements RSA by performing private key 4389 exponentiations with the GMP library. The conversions to and from 4390 GMP's mpz_t format aren't optimised nor are any montgomery forms 4391 cached, and on x86 it appears OpenSSL's own performance has caught up. 4392 However there are likely to be other architectures where GMP could 4393 provide a boost. This ENGINE is not built in by default, but it can be 4394 specified at Configure time and should be accompanied by the necessary 4395 linker additions, eg; 4396 ./config -DOPENSSL_USE_GMP -lgmp 4397 [Geoff Thorpe] 4398 4399 *) "openssl engine" will not display ENGINE/DSO load failure errors when 4400 testing availability of engines with "-t" - the old behaviour is 4401 produced by increasing the feature's verbosity with "-tt". 4402 [Geoff Thorpe] 4403 4404 *) ECDSA routines: under certain error conditions uninitialized BN objects 4405 could be freed. Solution: make sure initialization is performed early 4406 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 4407 via PR#459) 4408 [Lutz Jaenicke] 4409 4410 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 4411 and DH_METHOD (eg. by ENGINE implementations) to override the normal 4412 software implementations. For DSA and DH, parameter generation can 4413 also be overriden by providing the appropriate method callbacks. 4414 [Geoff Thorpe] 4415 4416 *) Change the "progress" mechanism used in key-generation and 4417 primality testing to functions that take a new BN_GENCB pointer in 4418 place of callback/argument pairs. The new API functions have "_ex" 4419 postfixes and the older functions are reimplemented as wrappers for 4420 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 4421 declarations of the old functions to help (graceful) attempts to 4422 migrate to the new functions. Also, the new key-generation API 4423 functions operate on a caller-supplied key-structure and return 4424 success/failure rather than returning a key or NULL - this is to 4425 help make "keygen" another member function of RSA_METHOD etc. 4426 4427 Example for using the new callback interface: 4428 4429 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 4430 void *my_arg = ...; 4431 BN_GENCB my_cb; 4432 4433 BN_GENCB_set(&my_cb, my_callback, my_arg); 4434 4435 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 4436 /* For the meaning of a, b in calls to my_callback(), see the 4437 * documentation of the function that calls the callback. 4438 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 4439 * my_callback should return 1 if it wants BN_is_prime_ex() 4440 * to continue, or 0 to stop. 4441 */ 4442 4443 [Geoff Thorpe] 4444 4445 *) Change the ZLIB compression method to be stateful, and make it 4446 available to TLS with the number defined in 4447 draft-ietf-tls-compression-04.txt. 4448 [Richard Levitte] 4449 4450 *) Add the ASN.1 structures and functions for CertificatePair, which 4451 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 4452 4453 CertificatePair ::= SEQUENCE { 4454 forward [0] Certificate OPTIONAL, 4455 reverse [1] Certificate OPTIONAL, 4456 -- at least one of the pair shall be present -- } 4457 4458 Also implement the PEM functions to read and write certificate 4459 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 4460 4461 This needed to be defined, mostly for the sake of the LDAP 4462 attribute crossCertificatePair, but may prove useful elsewhere as 4463 well. 4464 [Richard Levitte] 4465 4466 *) Make it possible to inhibit symlinking of shared libraries in 4467 Makefile.shared, for Cygwin's sake. 4468 [Richard Levitte] 4469 4470 *) Extend the BIGNUM API by creating a function 4471 void BN_set_negative(BIGNUM *a, int neg); 4472 and a macro that behave like 4473 int BN_is_negative(const BIGNUM *a); 4474 4475 to avoid the need to access 'a->neg' directly in applications. 4476 [Nils Larsch] 4477 4478 *) Implement fast modular reduction for pseudo-Mersenne primes 4479 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 4480 EC_GROUP_new_curve_GFp() will now automatically use this 4481 if applicable. 4482 [Nils Larsch <nla@trustcenter.de>] 4483 4484 *) Add new lock type (CRYPTO_LOCK_BN). 4485 [Bodo Moeller] 4486 4487 *) Change the ENGINE framework to automatically load engines 4488 dynamically from specific directories unless they could be 4489 found to already be built in or loaded. Move all the 4490 current engines except for the cryptodev one to a new 4491 directory engines/. 4492 The engines in engines/ are built as shared libraries if 4493 the "shared" options was given to ./Configure or ./config. 4494 Otherwise, they are inserted in libcrypto.a. 4495 /usr/local/ssl/engines is the default directory for dynamic 4496 engines, but that can be overriden at configure time through 4497 the usual use of --prefix and/or --openssldir, and at run 4498 time with the environment variable OPENSSL_ENGINES. 4499 [Geoff Thorpe and Richard Levitte] 4500 4501 *) Add Makefile.shared, a helper makefile to build shared 4502 libraries. Addapt Makefile.org. 4503 [Richard Levitte] 4504 4505 *) Add version info to Win32 DLLs. 4506 [Peter 'Luna' Runestig" <peter@runestig.com>] 4507 4508 *) Add new 'medium level' PKCS#12 API. Certificates and keys 4509 can be added using this API to created arbitrary PKCS#12 4510 files while avoiding the low level API. 4511 4512 New options to PKCS12_create(), key or cert can be NULL and 4513 will then be omitted from the output file. The encryption 4514 algorithm NIDs can be set to -1 for no encryption, the mac 4515 iteration count can be set to 0 to omit the mac. 4516 4517 Enhance pkcs12 utility by making the -nokeys and -nocerts 4518 options work when creating a PKCS#12 file. New option -nomac 4519 to omit the mac, NONE can be set for an encryption algorithm. 4520 New code is modified to use the enhanced PKCS12_create() 4521 instead of the low level API. 4522 [Steve Henson] 4523 4524 *) Extend ASN1 encoder to support indefinite length constructed 4525 encoding. This can output sequences tags and octet strings in 4526 this form. Modify pk7_asn1.c to support indefinite length 4527 encoding. This is experimental and needs additional code to 4528 be useful, such as an ASN1 bio and some enhanced streaming 4529 PKCS#7 code. 4530 4531 Extend template encode functionality so that tagging is passed 4532 down to the template encoder. 4533 [Steve Henson] 4534 4535 *) Let 'openssl req' fail if an argument to '-newkey' is not 4536 recognized instead of using RSA as a default. 4537 [Bodo Moeller] 4538 4539 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 4540 As these are not official, they are not included in "ALL"; 4541 the "ECCdraft" ciphersuite group alias can be used to select them. 4542 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 4543 4544 *) Add ECDH engine support. 4545 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 4546 4547 *) Add ECDH in new directory crypto/ecdh/. 4548 [Douglas Stebila (Sun Microsystems Laboratories)] 4549 4550 *) Let BN_rand_range() abort with an error after 100 iterations 4551 without success (which indicates a broken PRNG). 4552 [Bodo Moeller] 4553 4554 *) Change BN_mod_sqrt() so that it verifies that the input value 4555 is really the square of the return value. (Previously, 4556 BN_mod_sqrt would show GIGO behaviour.) 4557 [Bodo Moeller] 4558 4559 *) Add named elliptic curves over binary fields from X9.62, SECG, 4560 and WAP/WTLS; add OIDs that were still missing. 4561 4562 [Sheueling Chang Shantz and Douglas Stebila 4563 (Sun Microsystems Laboratories)] 4564 4565 *) Extend the EC library for elliptic curves over binary fields 4566 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 4567 New EC_METHOD: 4568 4569 EC_GF2m_simple_method 4570 4571 New API functions: 4572 4573 EC_GROUP_new_curve_GF2m 4574 EC_GROUP_set_curve_GF2m 4575 EC_GROUP_get_curve_GF2m 4576 EC_POINT_set_affine_coordinates_GF2m 4577 EC_POINT_get_affine_coordinates_GF2m 4578 EC_POINT_set_compressed_coordinates_GF2m 4579 4580 Point compression for binary fields is disabled by default for 4581 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 4582 enable it). 4583 4584 As binary polynomials are represented as BIGNUMs, various members 4585 of the EC_GROUP and EC_POINT data structures can be shared 4586 between the implementations for prime fields and binary fields; 4587 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 4588 are essentially identical to their ..._GFp counterparts. 4589 (For simplicity, the '..._GFp' prefix has been dropped from 4590 various internal method names.) 4591 4592 An internal 'field_div' method (similar to 'field_mul' and 4593 'field_sqr') has been added; this is used only for binary fields. 4594 4595 [Sheueling Chang Shantz and Douglas Stebila 4596 (Sun Microsystems Laboratories)] 4597 4598 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 4599 through methods ('mul', 'precompute_mult'). 4600 4601 The generic implementations (now internally called 'ec_wNAF_mul' 4602 and 'ec_wNAF_precomputed_mult') remain the default if these 4603 methods are undefined. 4604 4605 [Sheueling Chang Shantz and Douglas Stebila 4606 (Sun Microsystems Laboratories)] 4607 4608 *) New function EC_GROUP_get_degree, which is defined through 4609 EC_METHOD. For curves over prime fields, this returns the bit 4610 length of the modulus. 4611 4612 [Sheueling Chang Shantz and Douglas Stebila 4613 (Sun Microsystems Laboratories)] 4614 4615 *) New functions EC_GROUP_dup, EC_POINT_dup. 4616 (These simply call ..._new and ..._copy). 4617 4618 [Sheueling Chang Shantz and Douglas Stebila 4619 (Sun Microsystems Laboratories)] 4620 4621 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 4622 Polynomials are represented as BIGNUMs (where the sign bit is not 4623 used) in the following functions [macros]: 4624 4625 BN_GF2m_add 4626 BN_GF2m_sub [= BN_GF2m_add] 4627 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 4628 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 4629 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 4630 BN_GF2m_mod_inv 4631 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 4632 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 4633 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 4634 BN_GF2m_cmp [= BN_ucmp] 4635 4636 (Note that only the 'mod' functions are actually for fields GF(2^m). 4637 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 4638 4639 For some functions, an the irreducible polynomial defining a 4640 field can be given as an 'unsigned int[]' with strictly 4641 decreasing elements giving the indices of those bits that are set; 4642 i.e., p[] represents the polynomial 4643 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 4644 where 4645 p[0] > p[1] > ... > p[k] = 0. 4646 This applies to the following functions: 4647 4648 BN_GF2m_mod_arr 4649 BN_GF2m_mod_mul_arr 4650 BN_GF2m_mod_sqr_arr 4651 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 4652 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 4653 BN_GF2m_mod_exp_arr 4654 BN_GF2m_mod_sqrt_arr 4655 BN_GF2m_mod_solve_quad_arr 4656 BN_GF2m_poly2arr 4657 BN_GF2m_arr2poly 4658 4659 Conversion can be performed by the following functions: 4660 4661 BN_GF2m_poly2arr 4662 BN_GF2m_arr2poly 4663 4664 bntest.c has additional tests for binary polynomial arithmetic. 4665 4666 Two implementations for BN_GF2m_mod_div() are available. 4667 The default algorithm simply uses BN_GF2m_mod_inv() and 4668 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 4669 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 4670 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 4671 4672 [Sheueling Chang Shantz and Douglas Stebila 4673 (Sun Microsystems Laboratories)] 4674 4675 *) Add new error code 'ERR_R_DISABLED' that can be used when some 4676 functionality is disabled at compile-time. 4677 [Douglas Stebila <douglas.stebila@sun.com>] 4678 4679 *) Change default behaviour of 'openssl asn1parse' so that more 4680 information is visible when viewing, e.g., a certificate: 4681 4682 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 4683 mode the content of non-printable OCTET STRINGs is output in a 4684 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 4685 avoid the appearance of a printable string. 4686 [Nils Larsch <nla@trustcenter.de>] 4687 4688 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 4689 functions 4690 EC_GROUP_set_asn1_flag() 4691 EC_GROUP_get_asn1_flag() 4692 EC_GROUP_set_point_conversion_form() 4693 EC_GROUP_get_point_conversion_form() 4694 These control ASN1 encoding details: 4695 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 4696 has been set to OPENSSL_EC_NAMED_CURVE. 4697 - Points are encoded in uncompressed form by default; options for 4698 asn1_for are as for point2oct, namely 4699 POINT_CONVERSION_COMPRESSED 4700 POINT_CONVERSION_UNCOMPRESSED 4701 POINT_CONVERSION_HYBRID 4702 4703 Also add 'seed' and 'seed_len' members to EC_GROUP with access 4704 functions 4705 EC_GROUP_set_seed() 4706 EC_GROUP_get0_seed() 4707 EC_GROUP_get_seed_len() 4708 This is used only for ASN1 purposes (so far). 4709 [Nils Larsch <nla@trustcenter.de>] 4710 4711 *) Add 'field_type' member to EC_METHOD, which holds the NID 4712 of the appropriate field type OID. The new function 4713 EC_METHOD_get_field_type() returns this value. 4714 [Nils Larsch <nla@trustcenter.de>] 4715 4716 *) Add functions 4717 EC_POINT_point2bn() 4718 EC_POINT_bn2point() 4719 EC_POINT_point2hex() 4720 EC_POINT_hex2point() 4721 providing useful interfaces to EC_POINT_point2oct() and 4722 EC_POINT_oct2point(). 4723 [Nils Larsch <nla@trustcenter.de>] 4724 4725 *) Change internals of the EC library so that the functions 4726 EC_GROUP_set_generator() 4727 EC_GROUP_get_generator() 4728 EC_GROUP_get_order() 4729 EC_GROUP_get_cofactor() 4730 are implemented directly in crypto/ec/ec_lib.c and not dispatched 4731 to methods, which would lead to unnecessary code duplication when 4732 adding different types of curves. 4733 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 4734 4735 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 4736 arithmetic, and such that modified wNAFs are generated 4737 (which avoid length expansion in many cases). 4738 [Bodo Moeller] 4739 4740 *) Add a function EC_GROUP_check_discriminant() (defined via 4741 EC_METHOD) that verifies that the curve discriminant is non-zero. 4742 4743 Add a function EC_GROUP_check() that makes some sanity tests 4744 on a EC_GROUP, its generator and order. This includes 4745 EC_GROUP_check_discriminant(). 4746 [Nils Larsch <nla@trustcenter.de>] 4747 4748 *) Add ECDSA in new directory crypto/ecdsa/. 4749 4750 Add applications 'openssl ecparam' and 'openssl ecdsa' 4751 (these are based on 'openssl dsaparam' and 'openssl dsa'). 4752 4753 ECDSA support is also included in various other files across the 4754 library. Most notably, 4755 - 'openssl req' now has a '-newkey ecdsa:file' option; 4756 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 4757 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 4758 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 4759 them suitable for ECDSA where domain parameters must be 4760 extracted before the specific public key; 4761 - ECDSA engine support has been added. 4762 [Nils Larsch <nla@trustcenter.de>] 4763 4764 *) Include some named elliptic curves, and add OIDs from X9.62, 4765 SECG, and WAP/WTLS. Each curve can be obtained from the new 4766 function 4767 EC_GROUP_new_by_curve_name(), 4768 and the list of available named curves can be obtained with 4769 EC_get_builtin_curves(). 4770 Also add a 'curve_name' member to EC_GROUP objects, which can be 4771 accessed via 4772 EC_GROUP_set_curve_name() 4773 EC_GROUP_get_curve_name() 4774 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 4775 4776 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 4777 was actually never needed) and in BN_mul(). The removal in BN_mul() 4778 required a small change in bn_mul_part_recursive() and the addition 4779 of the functions bn_cmp_part_words(), bn_sub_part_words() and 4780 bn_add_part_words(), which do the same thing as bn_cmp_words(), 4781 bn_sub_words() and bn_add_words() except they take arrays with 4782 differing sizes. 4783 [Richard Levitte] 4784 4785 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 4786 4787 *) Cleanse PEM buffers before freeing them since they may contain 4788 sensitive data. 4789 [Benjamin Bennett <ben@psc.edu>] 4790 4791 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 4792 a ciphersuite string such as "DEFAULT:RSA" cannot enable 4793 authentication-only ciphersuites. 4794 [Bodo Moeller] 4795 4796 *) Since AES128 and AES256 share a single mask bit in the logic of 4797 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 4798 kludge to work properly if AES128 is available and AES256 isn't. 4799 [Victor Duchovni] 4800 4801 *) Expand security boundary to match 1.1.1 module. 4802 [Steve Henson] 4803 4804 *) Remove redundant features: hash file source, editing of test vectors 4805 modify fipsld to use external fips_premain.c signature. 4806 [Steve Henson] 4807 4808 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 4809 run algorithm test programs. 4810 [Steve Henson] 4811 4812 *) Make algorithm test programs more tolerant of whitespace. 4813 [Steve Henson] 4814 4815 *) Have SSL/TLS server implementation tolerate "mismatched" record 4816 protocol version while receiving ClientHello even if the 4817 ClientHello is fragmented. (The server can't insist on the 4818 particular protocol version it has chosen before the ServerHello 4819 message has informed the client about his choice.) 4820 [Bodo Moeller] 4821 4822 *) Load error codes if they are not already present instead of using a 4823 static variable. This allows them to be cleanly unloaded and reloaded. 4824 [Steve Henson] 4825 4826 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 4827 4828 *) Introduce limits to prevent malicious keys being able to 4829 cause a denial of service. (CVE-2006-2940) 4830 [Steve Henson, Bodo Moeller] 4831 4832 *) Fix ASN.1 parsing of certain invalid structures that can result 4833 in a denial of service. (CVE-2006-2937) [Steve Henson] 4834 4835 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 4836 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 4837 4838 *) Fix SSL client code which could crash if connecting to a 4839 malicious SSLv2 server. (CVE-2006-4343) 4840 [Tavis Ormandy and Will Drewry, Google Security Team] 4841 4842 *) Change ciphersuite string processing so that an explicit 4843 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 4844 will no longer include "AES128-SHA"), and any other similar 4845 ciphersuite (same bitmap) from *other* protocol versions (so that 4846 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 4847 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 4848 changes from 0.9.8b and 0.9.8d. 4849 [Bodo Moeller] 4850 4851 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 4852 4853 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 4854 (CVE-2006-4339) [Ben Laurie and Google Security Team] 4855 4856 *) Change the Unix randomness entropy gathering to use poll() when 4857 possible instead of select(), since the latter has some 4858 undesirable limitations. 4859 [Darryl Miles via Richard Levitte and Bodo Moeller] 4860 4861 *) Disable rogue ciphersuites: 4862 4863 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 4864 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 4865 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 4866 4867 The latter two were purportedly from 4868 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 4869 appear there. 4870 4871 Also deactive the remaining ciphersuites from 4872 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 4873 unofficial, and the ID has long expired. 4874 [Bodo Moeller] 4875 4876 *) Fix RSA blinding Heisenbug (problems sometimes occured on 4877 dual-core machines) and other potential thread-safety issues. 4878 [Bodo Moeller] 4879 4880 Changes between 0.9.7i and 0.9.7j [04 May 2006] 4881 4882 *) Adapt fipsld and the build system to link against the validated FIPS 4883 module in FIPS mode. 4884 [Steve Henson] 4885 4886 *) Fixes for VC++ 2005 build under Windows. 4887 [Steve Henson] 4888 4889 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 4890 from a Windows bash shell such as MSYS. It is autodetected from the 4891 "config" script when run from a VC++ environment. Modify standard VC++ 4892 build to use fipscanister.o from the GNU make build. 4893 [Steve Henson] 4894 4895 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 4896 4897 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 4898 The value now differs depending on if you build for FIPS or not. 4899 BEWARE! A program linked with a shared FIPSed libcrypto can't be 4900 safely run with a non-FIPSed libcrypto, as it may crash because of 4901 the difference induced by this change. 4902 [Andy Polyakov] 4903 4904 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 4905 4906 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 4907 (part of SSL_OP_ALL). This option used to disable the 4908 countermeasure against man-in-the-middle protocol-version 4909 rollback in the SSL 2.0 server implementation, which is a bad 4910 idea. (CVE-2005-2969) 4911 4912 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 4913 for Information Security, National Institute of Advanced Industrial 4914 Science and Technology [AIST], Japan)] 4915 4916 *) Minimal support for X9.31 signatures and PSS padding modes. This is 4917 mainly for FIPS compliance and not fully integrated at this stage. 4918 [Steve Henson] 4919 4920 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 4921 the exponentiation using a fixed-length exponent. (Otherwise, 4922 the information leaked through timing could expose the secret key 4923 after many signatures; cf. Bleichenbacher's attack on DSA with 4924 biased k.) 4925 [Bodo Moeller] 4926 4927 *) Make a new fixed-window mod_exp implementation the default for 4928 RSA, DSA, and DH private-key operations so that the sequence of 4929 squares and multiplies and the memory access pattern are 4930 independent of the particular secret key. This will mitigate 4931 cache-timing and potential related attacks. 4932 4933 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 4934 and this is automatically used by BN_mod_exp_mont() if the new flag 4935 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 4936 will use this BN flag for private exponents unless the flag 4937 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 4938 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 4939 4940 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 4941 4942 *) Change the client implementation for SSLv23_method() and 4943 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 4944 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 4945 (Previously, the SSL 2.0 backwards compatible Client Hello 4946 message format would be used even with SSL_OP_NO_SSLv2.) 4947 [Bodo Moeller] 4948 4949 *) Add support for smime-type MIME parameter in S/MIME messages which some 4950 clients need. 4951 [Steve Henson] 4952 4953 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 4954 a threadsafe manner. Modify rsa code to use new function and add calls 4955 to dsa and dh code (which had race conditions before). 4956 [Steve Henson] 4957 4958 *) Include the fixed error library code in the C error file definitions 4959 instead of fixing them up at runtime. This keeps the error code 4960 structures constant. 4961 [Steve Henson] 4962 4963 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 4964 4965 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 4966 OpenSSL 0.9.8.] 4967 4968 *) Fixes for newer kerberos headers. NB: the casts are needed because 4969 the 'length' field is signed on one version and unsigned on another 4970 with no (?) obvious way to tell the difference, without these VC++ 4971 complains. Also the "definition" of FAR (blank) is no longer included 4972 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 4973 some needed definitions. 4974 [Steve Henson] 4975 4976 *) Undo Cygwin change. 4977 [Ulf M��ller] 4978 4979 *) Added support for proxy certificates according to RFC 3820. 4980 Because they may be a security thread to unaware applications, 4981 they must be explicitely allowed in run-time. See 4982 docs/HOWTO/proxy_certificates.txt for further information. 4983 [Richard Levitte] 4984 4985 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 4986 4987 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 4988 server and client random values. Previously 4989 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 4990 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 4991 4992 This change has negligible security impact because: 4993 4994 1. Server and client random values still have 24 bytes of pseudo random 4995 data. 4996 4997 2. Server and client random values are sent in the clear in the initial 4998 handshake. 4999 5000 3. The master secret is derived using the premaster secret (48 bytes in 5001 size for static RSA ciphersuites) as well as client server and random 5002 values. 5003 5004 The OpenSSL team would like to thank the UK NISCC for bringing this issue 5005 to our attention. 5006 5007 [Stephen Henson, reported by UK NISCC] 5008 5009 *) Use Windows randomness collection on Cygwin. 5010 [Ulf M��ller] 5011 5012 *) Fix hang in EGD/PRNGD query when communication socket is closed 5013 prematurely by EGD/PRNGD. 5014 [Darren Tucker <dtucker@zip.com.au> via Lutz J��nicke, resolves #1014] 5015 5016 *) Prompt for pass phrases when appropriate for PKCS12 input format. 5017 [Steve Henson] 5018 5019 *) Back-port of selected performance improvements from development 5020 branch, as well as improved support for PowerPC platforms. 5021 [Andy Polyakov] 5022 5023 *) Add lots of checks for memory allocation failure, error codes to indicate 5024 failure and freeing up memory if a failure occurs. 5025 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 5026 5027 *) Add new -passin argument to dgst. 5028 [Steve Henson] 5029 5030 *) Perform some character comparisons of different types in X509_NAME_cmp: 5031 this is needed for some certificates that reencode DNs into UTF8Strings 5032 (in violation of RFC3280) and can't or wont issue name rollover 5033 certificates. 5034 [Steve Henson] 5035 5036 *) Make an explicit check during certificate validation to see that 5037 the CA setting in each certificate on the chain is correct. As a 5038 side effect always do the following basic checks on extensions, 5039 not just when there's an associated purpose to the check: 5040 5041 - if there is an unhandled critical extension (unless the user 5042 has chosen to ignore this fault) 5043 - if the path length has been exceeded (if one is set at all) 5044 - that certain extensions fit the associated purpose (if one has 5045 been given) 5046 [Richard Levitte] 5047 5048 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 5049 5050 *) Avoid a race condition when CRLs are checked in a multi threaded 5051 environment. This would happen due to the reordering of the revoked 5052 entries during signature checking and serial number lookup. Now the 5053 encoding is cached and the serial number sort performed under a lock. 5054 Add new STACK function sk_is_sorted(). 5055 [Steve Henson] 5056 5057 *) Add Delta CRL to the extension code. 5058 [Steve Henson] 5059 5060 *) Various fixes to s3_pkt.c so alerts are sent properly. 5061 [David Holmes <d.holmes@f5.com>] 5062 5063 *) Reduce the chances of duplicate issuer name and serial numbers (in 5064 violation of RFC3280) using the OpenSSL certificate creation utilities. 5065 This is done by creating a random 64 bit value for the initial serial 5066 number when a serial number file is created or when a self signed 5067 certificate is created using 'openssl req -x509'. The initial serial 5068 number file is created using 'openssl x509 -next_serial' in CA.pl 5069 rather than being initialized to 1. 5070 [Steve Henson] 5071 5072 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 5073 5074 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5075 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5076 [Joe Orton, Steve Henson] 5077 5078 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 5079 (CVE-2004-0112) 5080 [Joe Orton, Steve Henson] 5081 5082 *) Make it possible to have multiple active certificates with the same 5083 subject in the CA index file. This is done only if the keyword 5084 'unique_subject' is set to 'no' in the main CA section (default 5085 if 'CA_default') of the configuration file. The value is saved 5086 with the database itself in a separate index attribute file, 5087 named like the index file with '.attr' appended to the name. 5088 [Richard Levitte] 5089 5090 *) X509 verify fixes. Disable broken certificate workarounds when 5091 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 5092 keyUsage extension present. Don't accept CRLs with unhandled critical 5093 extensions: since verify currently doesn't process CRL extensions this 5094 rejects a CRL with *any* critical extensions. Add new verify error codes 5095 for these cases. 5096 [Steve Henson] 5097 5098 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 5099 A clarification of RFC2560 will require the use of OCTET STRINGs and 5100 some implementations cannot handle the current raw format. Since OpenSSL 5101 copies and compares OCSP nonces as opaque blobs without any attempt at 5102 parsing them this should not create any compatibility issues. 5103 [Steve Henson] 5104 5105 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 5106 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 5107 this HMAC (and other) operations are several times slower than OpenSSL 5108 < 0.9.7. 5109 [Steve Henson] 5110 5111 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 5112 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 5113 5114 *) Use the correct content when signing type "other". 5115 [Steve Henson] 5116 5117 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 5118 5119 *) Fix various bugs revealed by running the NISCC test suite: 5120 5121 Stop out of bounds reads in the ASN1 code when presented with 5122 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5123 5124 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 5125 5126 If verify callback ignores invalid public key errors don't try to check 5127 certificate signature with the NULL public key. 5128 5129 [Steve Henson] 5130 5131 *) New -ignore_err option in ocsp application to stop the server 5132 exiting on the first error in a request. 5133 [Steve Henson] 5134 5135 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5136 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5137 specifications. 5138 [Steve Henson] 5139 5140 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5141 extra data after the compression methods not only for TLS 1.0 5142 but also for SSL 3.0 (as required by the specification). 5143 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5144 5145 *) Change X509_certificate_type() to mark the key as exported/exportable 5146 when it's 512 *bits* long, not 512 bytes. 5147 [Richard Levitte] 5148 5149 *) Change AES_cbc_encrypt() so it outputs exact multiple of 5150 blocks during encryption. 5151 [Richard Levitte] 5152 5153 *) Various fixes to base64 BIO and non blocking I/O. On write 5154 flushes were not handled properly if the BIO retried. On read 5155 data was not being buffered properly and had various logic bugs. 5156 This also affects blocking I/O when the data being decoded is a 5157 certain size. 5158 [Steve Henson] 5159 5160 *) Various S/MIME bugfixes and compatibility changes: 5161 output correct application/pkcs7 MIME type if 5162 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 5163 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 5164 of files as .eml work). Correctly handle very long lines in MIME 5165 parser. 5166 [Steve Henson] 5167 5168 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 5169 5170 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5171 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5172 a protocol version number mismatch like a decryption error 5173 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5174 [Bodo Moeller] 5175 5176 *) Turn on RSA blinding by default in the default implementation 5177 to avoid a timing attack. Applications that don't want it can call 5178 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5179 They would be ill-advised to do so in most cases. 5180 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5181 5182 *) Change RSA blinding code so that it works when the PRNG is not 5183 seeded (in this case, the secret RSA exponent is abused as 5184 an unpredictable seed -- if it is not unpredictable, there 5185 is no point in blinding anyway). Make RSA blinding thread-safe 5186 by remembering the creator's thread ID in rsa->blinding and 5187 having all other threads use local one-time blinding factors 5188 (this requires more computation than sharing rsa->blinding, but 5189 avoids excessive locking; and if an RSA object is not shared 5190 between threads, blinding will still be very fast). 5191 [Bodo Moeller] 5192 5193 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 5194 ENGINE as defaults for all supported algorithms irrespective of 5195 the 'flags' parameter. 'flags' is now honoured, so applications 5196 should make sure they are passing it correctly. 5197 [Geoff Thorpe] 5198 5199 *) Target "mingw" now allows native Windows code to be generated in 5200 the Cygwin environment as well as with the MinGW compiler. 5201 [Ulf Moeller] 5202 5203 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 5204 5205 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5206 via timing by performing a MAC computation even if incorrrect 5207 block cipher padding has been found. This is a countermeasure 5208 against active attacks where the attacker has to distinguish 5209 between bad padding and a MAC verification error. (CVE-2003-0078) 5210 5211 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5212 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5213 Martin Vuagnoux (EPFL, Ilion)] 5214 5215 *) Make the no-err option work as intended. The intention with no-err 5216 is not to have the whole error stack handling routines removed from 5217 libcrypto, it's only intended to remove all the function name and 5218 reason texts, thereby removing some of the footprint that may not 5219 be interesting if those errors aren't displayed anyway. 5220 5221 NOTE: it's still possible for any application or module to have it's 5222 own set of error texts inserted. The routines are there, just not 5223 used by default when no-err is given. 5224 [Richard Levitte] 5225 5226 *) Add support for FreeBSD on IA64. 5227 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 5228 5229 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 5230 Kerberos function mit_des_cbc_cksum(). Before this change, 5231 the value returned by DES_cbc_cksum() was like the one from 5232 mit_des_cbc_cksum(), except the bytes were swapped. 5233 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 5234 5235 *) Allow an application to disable the automatic SSL chain building. 5236 Before this a rather primitive chain build was always performed in 5237 ssl3_output_cert_chain(): an application had no way to send the 5238 correct chain if the automatic operation produced an incorrect result. 5239 5240 Now the chain builder is disabled if either: 5241 5242 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 5243 5244 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 5245 5246 The reasoning behind this is that an application would not want the 5247 auto chain building to take place if extra chain certificates are 5248 present and it might also want a means of sending no additional 5249 certificates (for example the chain has two certificates and the 5250 root is omitted). 5251 [Steve Henson] 5252 5253 *) Add the possibility to build without the ENGINE framework. 5254 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5255 5256 *) Under Win32 gmtime() can return NULL: check return value in 5257 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 5258 [Steve Henson] 5259 5260 *) DSA routines: under certain error conditions uninitialized BN objects 5261 could be freed. Solution: make sure initialization is performed early 5262 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 5263 Nils Larsch <nla@trustcenter.de> via PR#459) 5264 [Lutz Jaenicke] 5265 5266 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 5267 checked on reconnect on the client side, therefore session resumption 5268 could still fail with a "ssl session id is different" error. This 5269 behaviour is masked when SSL_OP_ALL is used due to 5270 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 5271 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5272 followup to PR #377. 5273 [Lutz Jaenicke] 5274 5275 *) IA-32 assembler support enhancements: unified ELF targets, support 5276 for SCO/Caldera platforms, fix for Cygwin shared build. 5277 [Andy Polyakov] 5278 5279 *) Add support for FreeBSD on sparc64. As a consequence, support for 5280 FreeBSD on non-x86 processors is separate from x86 processors on 5281 the config script, much like the NetBSD support. 5282 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 5283 5284 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 5285 5286 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 5287 OpenSSL 0.9.7.] 5288 5289 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 5290 code (06) was taken as the first octet of the session ID and the last 5291 octet was ignored consequently. As a result SSLv2 client side session 5292 caching could not have worked due to the session ID mismatch between 5293 client and server. 5294 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 5295 PR #377. 5296 [Lutz Jaenicke] 5297 5298 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 5299 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 5300 removed entirely. 5301 [Richard Levitte] 5302 5303 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 5304 seems that in spite of existing for more than a year, many application 5305 author have done nothing to provide the necessary callbacks, which 5306 means that this particular engine will not work properly anywhere. 5307 This is a very unfortunate situation which forces us, in the name 5308 of usability, to give the hw_ncipher.c a static lock, which is part 5309 of libcrypto. 5310 NOTE: This is for the 0.9.7 series ONLY. This hack will never 5311 appear in 0.9.8 or later. We EXPECT application authors to have 5312 dealt properly with this when 0.9.8 is released (unless we actually 5313 make such changes in the libcrypto locking code that changes will 5314 have to be made anyway). 5315 [Richard Levitte] 5316 5317 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 5318 octets have been read, EOF or an error occurs. Without this change 5319 some truncated ASN1 structures will not produce an error. 5320 [Steve Henson] 5321 5322 *) Disable Heimdal support, since it hasn't been fully implemented. 5323 Still give the possibility to force the use of Heimdal, but with 5324 warnings and a request that patches get sent to openssl-dev. 5325 [Richard Levitte] 5326 5327 *) Add the VC-CE target, introduce the WINCE sysname, and add 5328 INSTALL.WCE and appropriate conditionals to make it build. 5329 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 5330 5331 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 5332 cygssl-x.y.z.dll, where x, y and z are the major, minor and 5333 edit numbers of the version. 5334 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 5335 5336 *) Introduce safe string copy and catenation functions 5337 (BUF_strlcpy() and BUF_strlcat()). 5338 [Ben Laurie (CHATS) and Richard Levitte] 5339 5340 *) Avoid using fixed-size buffers for one-line DNs. 5341 [Ben Laurie (CHATS)] 5342 5343 *) Add BUF_MEM_grow_clean() to avoid information leakage when 5344 resizing buffers containing secrets, and use where appropriate. 5345 [Ben Laurie (CHATS)] 5346 5347 *) Avoid using fixed size buffers for configuration file location. 5348 [Ben Laurie (CHATS)] 5349 5350 *) Avoid filename truncation for various CA files. 5351 [Ben Laurie (CHATS)] 5352 5353 *) Use sizeof in preference to magic numbers. 5354 [Ben Laurie (CHATS)] 5355 5356 *) Avoid filename truncation in cert requests. 5357 [Ben Laurie (CHATS)] 5358 5359 *) Add assertions to check for (supposedly impossible) buffer 5360 overflows. 5361 [Ben Laurie (CHATS)] 5362 5363 *) Don't cache truncated DNS entries in the local cache (this could 5364 potentially lead to a spoofing attack). 5365 [Ben Laurie (CHATS)] 5366 5367 *) Fix various buffers to be large enough for hex/decimal 5368 representations in a platform independent manner. 5369 [Ben Laurie (CHATS)] 5370 5371 *) Add CRYPTO_realloc_clean() to avoid information leakage when 5372 resizing buffers containing secrets, and use where appropriate. 5373 [Ben Laurie (CHATS)] 5374 5375 *) Add BIO_indent() to avoid much slightly worrying code to do 5376 indents. 5377 [Ben Laurie (CHATS)] 5378 5379 *) Convert sprintf()/BIO_puts() to BIO_printf(). 5380 [Ben Laurie (CHATS)] 5381 5382 *) buffer_gets() could terminate with the buffer only half 5383 full. Fixed. 5384 [Ben Laurie (CHATS)] 5385 5386 *) Add assertions to prevent user-supplied crypto functions from 5387 overflowing internal buffers by having large block sizes, etc. 5388 [Ben Laurie (CHATS)] 5389 5390 *) New OPENSSL_assert() macro (similar to assert(), but enabled 5391 unconditionally). 5392 [Ben Laurie (CHATS)] 5393 5394 *) Eliminate unused copy of key in RC4. 5395 [Ben Laurie (CHATS)] 5396 5397 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 5398 [Ben Laurie (CHATS)] 5399 5400 *) Fix off-by-one error in EGD path. 5401 [Ben Laurie (CHATS)] 5402 5403 *) If RANDFILE path is too long, ignore instead of truncating. 5404 [Ben Laurie (CHATS)] 5405 5406 *) Eliminate unused and incorrectly sized X.509 structure 5407 CBCParameter. 5408 [Ben Laurie (CHATS)] 5409 5410 *) Eliminate unused and dangerous function knumber(). 5411 [Ben Laurie (CHATS)] 5412 5413 *) Eliminate unused and dangerous structure, KSSL_ERR. 5414 [Ben Laurie (CHATS)] 5415 5416 *) Protect against overlong session ID context length in an encoded 5417 session object. Since these are local, this does not appear to be 5418 exploitable. 5419 [Ben Laurie (CHATS)] 5420 5421 *) Change from security patch (see 0.9.6e below) that did not affect 5422 the 0.9.6 release series: 5423 5424 Remote buffer overflow in SSL3 protocol - an attacker could 5425 supply an oversized master key in Kerberos-enabled versions. 5426 (CVE-2002-0657) 5427 [Ben Laurie (CHATS)] 5428 5429 *) Change the SSL kerb5 codes to match RFC 2712. 5430 [Richard Levitte] 5431 5432 *) Make -nameopt work fully for req and add -reqopt switch. 5433 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 5434 5435 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 5436 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 5437 5438 *) Make sure tests can be performed even if the corresponding algorithms 5439 have been removed entirely. This was also the last step to make 5440 OpenSSL compilable with DJGPP under all reasonable conditions. 5441 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 5442 5443 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 5444 to allow version independent disabling of normally unselected ciphers, 5445 which may be activated as a side-effect of selecting a single cipher. 5446 5447 (E.g., cipher list string "RSA" enables ciphersuites that are left 5448 out of "ALL" because they do not provide symmetric encryption. 5449 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 5450 [Lutz Jaenicke, Bodo Moeller] 5451 5452 *) Add appropriate support for separate platform-dependent build 5453 directories. The recommended way to make a platform-dependent 5454 build directory is the following (tested on Linux), maybe with 5455 some local tweaks: 5456 5457 # Place yourself outside of the OpenSSL source tree. In 5458 # this example, the environment variable OPENSSL_SOURCE 5459 # is assumed to contain the absolute OpenSSL source directory. 5460 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 5461 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 5462 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 5463 mkdir -p `dirname $F` 5464 ln -s $OPENSSL_SOURCE/$F $F 5465 done 5466 5467 To be absolutely sure not to disturb the source tree, a "make clean" 5468 is a good thing. If it isn't successfull, don't worry about it, 5469 it probably means the source directory is very clean. 5470 [Richard Levitte] 5471 5472 *) Make sure any ENGINE control commands make local copies of string 5473 pointers passed to them whenever necessary. Otherwise it is possible 5474 the caller may have overwritten (or deallocated) the original string 5475 data when a later ENGINE operation tries to use the stored values. 5476 [G��tz Babin-Ebell <babinebell@trustcenter.de>] 5477 5478 *) Improve diagnostics in file reading and command-line digests. 5479 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 5480 5481 *) Add AES modes CFB and OFB to the object database. Correct an 5482 error in AES-CFB decryption. 5483 [Richard Levitte] 5484 5485 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 5486 allows existing EVP_CIPHER_CTX structures to be reused after 5487 calling EVP_*Final(). This behaviour is used by encryption 5488 BIOs and some applications. This has the side effect that 5489 applications must explicitly clean up cipher contexts with 5490 EVP_CIPHER_CTX_cleanup() or they will leak memory. 5491 [Steve Henson] 5492 5493 *) Check the values of dna and dnb in bn_mul_recursive before calling 5494 bn_mul_comba (a non zero value means the a or b arrays do not contain 5495 n2 elements) and fallback to bn_mul_normal if either is not zero. 5496 [Steve Henson] 5497 5498 *) Fix escaping of non-ASCII characters when using the -subj option 5499 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 5500 [Lutz Jaenicke] 5501 5502 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 5503 form for "surname", serialNumber has no short form. 5504 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 5505 therefore remove "mail" short name for "internet 7". 5506 The OID for unique identifiers in X509 certificates is 5507 x500UniqueIdentifier, not uniqueIdentifier. 5508 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 5509 [Lutz Jaenicke] 5510 5511 *) Add an "init" command to the ENGINE config module and auto initialize 5512 ENGINEs. Without any "init" command the ENGINE will be initialized 5513 after all ctrl commands have been executed on it. If init=1 the 5514 ENGINE is initailized at that point (ctrls before that point are run 5515 on the uninitialized ENGINE and after on the initialized one). If 5516 init=0 then the ENGINE will not be iniatialized at all. 5517 [Steve Henson] 5518 5519 *) Fix the 'app_verify_callback' interface so that the user-defined 5520 argument is actually passed to the callback: In the 5521 SSL_CTX_set_cert_verify_callback() prototype, the callback 5522 declaration has been changed from 5523 int (*cb)() 5524 into 5525 int (*cb)(X509_STORE_CTX *,void *); 5526 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 5527 i=s->ctx->app_verify_callback(&ctx) 5528 has been changed into 5529 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 5530 5531 To update applications using SSL_CTX_set_cert_verify_callback(), 5532 a dummy argument can be added to their callback functions. 5533 [D. K. Smetters <smetters@parc.xerox.com>] 5534 5535 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 5536 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 5537 5538 *) Add and OPENSSL_LOAD_CONF define which will cause 5539 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 5540 This allows older applications to transparently support certain 5541 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 5542 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 5543 load the config file and OPENSSL_add_all_algorithms_conf() which will 5544 always load it have also been added. 5545 [Steve Henson] 5546 5547 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 5548 Adjust NIDs and EVP layer. 5549 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5550 5551 *) Config modules support in openssl utility. 5552 5553 Most commands now load modules from the config file, 5554 though in a few (such as version) this isn't done 5555 because it couldn't be used for anything. 5556 5557 In the case of ca and req the config file used is 5558 the same as the utility itself: that is the -config 5559 command line option can be used to specify an 5560 alternative file. 5561 [Steve Henson] 5562 5563 *) Move default behaviour from OPENSSL_config(). If appname is NULL 5564 use "openssl_conf" if filename is NULL use default openssl config file. 5565 [Steve Henson] 5566 5567 *) Add an argument to OPENSSL_config() to allow the use of an alternative 5568 config section name. Add a new flag to tolerate a missing config file 5569 and move code to CONF_modules_load_file(). 5570 [Steve Henson] 5571 5572 *) Support for crypto accelerator cards from Accelerated Encryption 5573 Processing, www.aep.ie. (Use engine 'aep') 5574 The support was copied from 0.9.6c [engine] and adapted/corrected 5575 to work with the new engine framework. 5576 [AEP Inc. and Richard Levitte] 5577 5578 *) Support for SureWare crypto accelerator cards from Baltimore 5579 Technologies. (Use engine 'sureware') 5580 The support was copied from 0.9.6c [engine] and adapted 5581 to work with the new engine framework. 5582 [Richard Levitte] 5583 5584 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 5585 make the newer ENGINE framework commands for the CHIL engine work. 5586 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 5587 5588 *) Make it possible to produce shared libraries on ReliantUNIX. 5589 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 5590 5591 *) Add the configuration target debug-linux-ppro. 5592 Make 'openssl rsa' use the general key loading routines 5593 implemented in apps.c, and make those routines able to 5594 handle the key format FORMAT_NETSCAPE and the variant 5595 FORMAT_IISSGC. 5596 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5597 5598 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 5599 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 5600 5601 *) Add -keyform to rsautl, and document -engine. 5602 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 5603 5604 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 5605 BIO_R_NO_SUCH_FILE error code rather than the generic 5606 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 5607 [Ben Laurie] 5608 5609 *) Add new functions 5610 ERR_peek_last_error 5611 ERR_peek_last_error_line 5612 ERR_peek_last_error_line_data. 5613 These are similar to 5614 ERR_peek_error 5615 ERR_peek_error_line 5616 ERR_peek_error_line_data, 5617 but report on the latest error recorded rather than the first one 5618 still in the error queue. 5619 [Ben Laurie, Bodo Moeller] 5620 5621 *) default_algorithms option in ENGINE config module. This allows things 5622 like: 5623 default_algorithms = ALL 5624 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 5625 [Steve Henson] 5626 5627 *) Prelminary ENGINE config module. 5628 [Steve Henson] 5629 5630 *) New experimental application configuration code. 5631 [Steve Henson] 5632 5633 *) Change the AES code to follow the same name structure as all other 5634 symmetric ciphers, and behave the same way. Move everything to 5635 the directory crypto/aes, thereby obsoleting crypto/rijndael. 5636 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 5637 5638 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 5639 [Ben Laurie and Theo de Raadt] 5640 5641 *) Add option to output public keys in req command. 5642 [Massimiliano Pala madwolf@openca.org] 5643 5644 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 5645 (up to about 10% better than before for P-192 and P-224). 5646 [Bodo Moeller] 5647 5648 *) New functions/macros 5649 5650 SSL_CTX_set_msg_callback(ctx, cb) 5651 SSL_CTX_set_msg_callback_arg(ctx, arg) 5652 SSL_set_msg_callback(ssl, cb) 5653 SSL_set_msg_callback_arg(ssl, arg) 5654 5655 to request calling a callback function 5656 5657 void cb(int write_p, int version, int content_type, 5658 const void *buf, size_t len, SSL *ssl, void *arg) 5659 5660 whenever a protocol message has been completely received 5661 (write_p == 0) or sent (write_p == 1). Here 'version' is the 5662 protocol version according to which the SSL library interprets 5663 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 5664 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 5665 the content type as defined in the SSL 3.0/TLS 1.0 protocol 5666 specification (change_cipher_spec(20), alert(21), handshake(22)). 5667 'buf' and 'len' point to the actual message, 'ssl' to the 5668 SSL object, and 'arg' is the application-defined value set by 5669 SSL[_CTX]_set_msg_callback_arg(). 5670 5671 'openssl s_client' and 'openssl s_server' have new '-msg' options 5672 to enable a callback that displays all protocol messages. 5673 [Bodo Moeller] 5674 5675 *) Change the shared library support so shared libraries are built as 5676 soon as the corresponding static library is finished, and thereby get 5677 openssl and the test programs linked against the shared library. 5678 This still only happens when the keyword "shard" has been given to 5679 the configuration scripts. 5680 5681 NOTE: shared library support is still an experimental thing, and 5682 backward binary compatibility is still not guaranteed. 5683 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 5684 5685 *) Add support for Subject Information Access extension. 5686 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 5687 5688 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 5689 additional bytes when new memory had to be allocated, not just 5690 when reusing an existing buffer. 5691 [Bodo Moeller] 5692 5693 *) New command line and configuration option 'utf8' for the req command. 5694 This allows field values to be specified as UTF8 strings. 5695 [Steve Henson] 5696 5697 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 5698 runs for the former and machine-readable output for the latter. 5699 [Ben Laurie] 5700 5701 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 5702 of the e-mail address in the DN (i.e., it will go into a certificate 5703 extension only). The new configuration file option 'email_in_dn = no' 5704 has the same effect. 5705 [Massimiliano Pala madwolf@openca.org] 5706 5707 *) Change all functions with names starting with des_ to be starting 5708 with DES_ instead. Add wrappers that are compatible with libdes, 5709 but are named _ossl_old_des_*. Finally, add macros that map the 5710 des_* symbols to the corresponding _ossl_old_des_* if libdes 5711 compatibility is desired. If OpenSSL 0.9.6c compatibility is 5712 desired, the des_* symbols will be mapped to DES_*, with one 5713 exception. 5714 5715 Since we provide two compatibility mappings, the user needs to 5716 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 5717 compatibility is desired. The default (i.e., when that macro 5718 isn't defined) is OpenSSL 0.9.6c compatibility. 5719 5720 There are also macros that enable and disable the support of old 5721 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 5722 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 5723 are defined, the default will apply: to support the old des routines. 5724 5725 In either case, one must include openssl/des.h to get the correct 5726 definitions. Do not try to just include openssl/des_old.h, that 5727 won't work. 5728 5729 NOTE: This is a major break of an old API into a new one. Software 5730 authors are encouraged to switch to the DES_ style functions. Some 5731 time in the future, des_old.h and the libdes compatibility functions 5732 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 5733 default), and then completely removed. 5734 [Richard Levitte] 5735 5736 *) Test for certificates which contain unsupported critical extensions. 5737 If such a certificate is found during a verify operation it is 5738 rejected by default: this behaviour can be overridden by either 5739 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 5740 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 5741 X509_supported_extension() has also been added which returns 1 if a 5742 particular extension is supported. 5743 [Steve Henson] 5744 5745 *) Modify the behaviour of EVP cipher functions in similar way to digests 5746 to retain compatibility with existing code. 5747 [Steve Henson] 5748 5749 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 5750 compatibility with existing code. In particular the 'ctx' parameter does 5751 not have to be to be initialized before the call to EVP_DigestInit() and 5752 it is tidied up after a call to EVP_DigestFinal(). New function 5753 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 5754 EVP_MD_CTX_copy() changed to not require the destination to be 5755 initialized valid and new function EVP_MD_CTX_copy_ex() added which 5756 requires the destination to be valid. 5757 5758 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 5759 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 5760 [Steve Henson] 5761 5762 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 5763 so that complete 'Handshake' protocol structures are kept in memory 5764 instead of overwriting 'msg_type' and 'length' with 'body' data. 5765 [Bodo Moeller] 5766 5767 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 5768 [Massimo Santin via Richard Levitte] 5769 5770 *) Major restructuring to the underlying ENGINE code. This includes 5771 reduction of linker bloat, separation of pure "ENGINE" manipulation 5772 (initialisation, etc) from functionality dealing with implementations 5773 of specific crypto iterfaces. This change also introduces integrated 5774 support for symmetric ciphers and digest implementations - so ENGINEs 5775 can now accelerate these by providing EVP_CIPHER and EVP_MD 5776 implementations of their own. This is detailed in crypto/engine/README 5777 as it couldn't be adequately described here. However, there are a few 5778 API changes worth noting - some RSA, DSA, DH, and RAND functions that 5779 were changed in the original introduction of ENGINE code have now 5780 reverted back - the hooking from this code to ENGINE is now a good 5781 deal more passive and at run-time, operations deal directly with 5782 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 5783 dereferencing through an ENGINE pointer any more. Also, the ENGINE 5784 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 5785 they were not being used by the framework as there is no concept of a 5786 BIGNUM_METHOD and they could not be generalised to the new 5787 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 5788 ENGINE_cpy() has been removed as it cannot be consistently defined in 5789 the new code. 5790 [Geoff Thorpe] 5791 5792 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 5793 [Steve Henson] 5794 5795 *) Change mkdef.pl to sort symbols that get the same entry number, 5796 and make sure the automatically generated functions ERR_load_* 5797 become part of libeay.num as well. 5798 [Richard Levitte] 5799 5800 *) New function SSL_renegotiate_pending(). This returns true once 5801 renegotiation has been requested (either SSL_renegotiate() call 5802 or HelloRequest/ClientHello receveived from the peer) and becomes 5803 false once a handshake has been completed. 5804 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 5805 sends a HelloRequest, but does not ensure that a handshake takes 5806 place. SSL_renegotiate_pending() is useful for checking if the 5807 client has followed the request.) 5808 [Bodo Moeller] 5809 5810 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 5811 By default, clients may request session resumption even during 5812 renegotiation (if session ID contexts permit); with this option, 5813 session resumption is possible only in the first handshake. 5814 5815 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 5816 more bits available for options that should not be part of 5817 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 5818 [Bodo Moeller] 5819 5820 *) Add some demos for certificate and certificate request creation. 5821 [Steve Henson] 5822 5823 *) Make maximum certificate chain size accepted from the peer application 5824 settable (SSL*_get/set_max_cert_list()), as proposed by 5825 "Douglas E. Engert" <deengert@anl.gov>. 5826 [Lutz Jaenicke] 5827 5828 *) Add support for shared libraries for Unixware-7 5829 (Boyd Lynn Gerber <gerberb@zenez.com>). 5830 [Lutz Jaenicke] 5831 5832 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 5833 be done prior to destruction. Use this to unload error strings from 5834 ENGINEs that load their own error strings. NB: This adds two new API 5835 functions to "get" and "set" this destroy handler in an ENGINE. 5836 [Geoff Thorpe] 5837 5838 *) Alter all existing ENGINE implementations (except "openssl" and 5839 "openbsd") to dynamically instantiate their own error strings. This 5840 makes them more flexible to be built both as statically-linked ENGINEs 5841 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 5842 Also, add stub code to each that makes building them as self-contained 5843 shared-libraries easier (see README.ENGINE). 5844 [Geoff Thorpe] 5845 5846 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 5847 implementations into applications that are completely implemented in 5848 self-contained shared-libraries. The "dynamic" ENGINE exposes control 5849 commands that can be used to configure what shared-library to load and 5850 to control aspects of the way it is handled. Also, made an update to 5851 the README.ENGINE file that brings its information up-to-date and 5852 provides some information and instructions on the "dynamic" ENGINE 5853 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 5854 [Geoff Thorpe] 5855 5856 *) Make it possible to unload ranges of ERR strings with a new 5857 "ERR_unload_strings" function. 5858 [Geoff Thorpe] 5859 5860 *) Add a copy() function to EVP_MD. 5861 [Ben Laurie] 5862 5863 *) Make EVP_MD routines take a context pointer instead of just the 5864 md_data void pointer. 5865 [Ben Laurie] 5866 5867 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 5868 that the digest can only process a single chunk of data 5869 (typically because it is provided by a piece of 5870 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 5871 is only going to provide a single chunk of data, and hence the 5872 framework needn't accumulate the data for oneshot drivers. 5873 [Ben Laurie] 5874 5875 *) As with "ERR", make it possible to replace the underlying "ex_data" 5876 functions. This change also alters the storage and management of global 5877 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 5878 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 5879 index counters. The API functions that use this state have been changed 5880 to take a "class_index" rather than pointers to the class's local STACK 5881 and counter, and there is now an API function to dynamically create new 5882 classes. This centralisation allows us to (a) plug a lot of the 5883 thread-safety problems that existed, and (b) makes it possible to clean 5884 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 5885 such data would previously have always leaked in application code and 5886 workarounds were in place to make the memory debugging turn a blind eye 5887 to it. Application code that doesn't use this new function will still 5888 leak as before, but their memory debugging output will announce it now 5889 rather than letting it slide. 5890 5891 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 5892 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 5893 has a return value to indicate success or failure. 5894 [Geoff Thorpe] 5895 5896 *) Make it possible to replace the underlying "ERR" functions such that the 5897 global state (2 LHASH tables and 2 locks) is only used by the "default" 5898 implementation. This change also adds two functions to "get" and "set" 5899 the implementation prior to it being automatically set the first time 5900 any other ERR function takes place. Ie. an application can call "get", 5901 pass the return value to a module it has just loaded, and that module 5902 can call its own "set" function using that value. This means the 5903 module's "ERR" operations will use (and modify) the error state in the 5904 application and not in its own statically linked copy of OpenSSL code. 5905 [Geoff Thorpe] 5906 5907 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 5908 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 5909 the operation, and provides a more encapsulated way for external code 5910 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 5911 to use these functions rather than manually incrementing the counts. 5912 5913 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 5914 [Geoff Thorpe] 5915 5916 *) Add EVP test program. 5917 [Ben Laurie] 5918 5919 *) Add symmetric cipher support to ENGINE. Expect the API to change! 5920 [Ben Laurie] 5921 5922 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 5923 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 5924 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 5925 These allow a CRL to be built without having to access X509_CRL fields 5926 directly. Modify 'ca' application to use new functions. 5927 [Steve Henson] 5928 5929 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 5930 bug workarounds. Rollback attack detection is a security feature. 5931 The problem will only arise on OpenSSL servers when TLSv1 is not 5932 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 5933 Software authors not wanting to support TLSv1 will have special reasons 5934 for their choice and can explicitly enable this option. 5935 [Bodo Moeller, Lutz Jaenicke] 5936 5937 *) Rationalise EVP so it can be extended: don't include a union of 5938 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 5939 (similar to those existing for EVP_CIPHER_CTX). 5940 Usage example: 5941 5942 EVP_MD_CTX md; 5943 5944 EVP_MD_CTX_init(&md); /* new function call */ 5945 EVP_DigestInit(&md, EVP_sha1()); 5946 EVP_DigestUpdate(&md, in, len); 5947 EVP_DigestFinal(&md, out, NULL); 5948 EVP_MD_CTX_cleanup(&md); /* new function call */ 5949 5950 [Ben Laurie] 5951 5952 *) Make DES key schedule conform to the usual scheme, as well as 5953 correcting its structure. This means that calls to DES functions 5954 now have to pass a pointer to a des_key_schedule instead of a 5955 plain des_key_schedule (which was actually always a pointer 5956 anyway): E.g., 5957 5958 des_key_schedule ks; 5959 5960 des_set_key_checked(..., &ks); 5961 des_ncbc_encrypt(..., &ks, ...); 5962 5963 (Note that a later change renames 'des_...' into 'DES_...'.) 5964 [Ben Laurie] 5965 5966 *) Initial reduction of linker bloat: the use of some functions, such as 5967 PEM causes large amounts of unused functions to be linked in due to 5968 poor organisation. For example pem_all.c contains every PEM function 5969 which has a knock on effect of linking in large amounts of (unused) 5970 ASN1 code. Grouping together similar functions and splitting unrelated 5971 functions prevents this. 5972 [Steve Henson] 5973 5974 *) Cleanup of EVP macros. 5975 [Ben Laurie] 5976 5977 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 5978 correct _ecb suffix. 5979 [Ben Laurie] 5980 5981 *) Add initial OCSP responder support to ocsp application. The 5982 revocation information is handled using the text based index 5983 use by the ca application. The responder can either handle 5984 requests generated internally, supplied in files (for example 5985 via a CGI script) or using an internal minimal server. 5986 [Steve Henson] 5987 5988 *) Add configuration choices to get zlib compression for TLS. 5989 [Richard Levitte] 5990 5991 *) Changes to Kerberos SSL for RFC 2712 compliance: 5992 1. Implemented real KerberosWrapper, instead of just using 5993 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 5994 2. Implemented optional authenticator field of KerberosWrapper. 5995 5996 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 5997 and authenticator structs; see crypto/krb5/. 5998 5999 Generalized Kerberos calls to support multiple Kerberos libraries. 6000 [Vern Staats <staatsvr@asc.hpc.mil>, 6001 Jeffrey Altman <jaltman@columbia.edu> 6002 via Richard Levitte] 6003 6004 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 6005 already does with RSA. testdsa.h now has 'priv_key/pub_key' 6006 values for each of the key sizes rather than having just 6007 parameters (and 'speed' generating keys each time). 6008 [Geoff Thorpe] 6009 6010 *) Speed up EVP routines. 6011 Before: 6012encrypt 6013type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 6014des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 6015des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 6016des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 6017decrypt 6018des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 6019des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 6020des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 6021 After: 6022encrypt 6023des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 6024decrypt 6025des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 6026 [Ben Laurie] 6027 6028 *) Added the OS2-EMX target. 6029 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 6030 6031 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 6032 to support NCONF routines in extension code. New function CONF_set_nconf() 6033 to allow functions which take an NCONF to also handle the old LHASH 6034 structure: this means that the old CONF compatible routines can be 6035 retained (in particular wrt extensions) without having to duplicate the 6036 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 6037 [Steve Henson] 6038 6039 *) Enhance the general user interface with mechanisms for inner control 6040 and with possibilities to have yes/no kind of prompts. 6041 [Richard Levitte] 6042 6043 *) Change all calls to low level digest routines in the library and 6044 applications to use EVP. Add missing calls to HMAC_cleanup() and 6045 don't assume HMAC_CTX can be copied using memcpy(). 6046 [Verdon Walker <VWalker@novell.com>, Steve Henson] 6047 6048 *) Add the possibility to control engines through control names but with 6049 arbitrary arguments instead of just a string. 6050 Change the key loaders to take a UI_METHOD instead of a callback 6051 function pointer. NOTE: this breaks binary compatibility with earlier 6052 versions of OpenSSL [engine]. 6053 Adapt the nCipher code for these new conditions and add a card insertion 6054 callback. 6055 [Richard Levitte] 6056 6057 *) Enhance the general user interface with mechanisms to better support 6058 dialog box interfaces, application-defined prompts, the possibility 6059 to use defaults (for example default passwords from somewhere else) 6060 and interrupts/cancellations. 6061 [Richard Levitte] 6062 6063 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 6064 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 6065 [Steve Henson] 6066 6067 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 6068 tidy up some unnecessarily weird code in 'sk_new()'). 6069 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 6070 6071 *) Change the key loading routines for ENGINEs to use the same kind 6072 callback (pem_password_cb) as all other routines that need this 6073 kind of callback. 6074 [Richard Levitte] 6075 6076 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 6077 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 6078 than this minimum value is recommended. 6079 [Lutz Jaenicke] 6080 6081 *) New random seeder for OpenVMS, using the system process statistics 6082 that are easily reachable. 6083 [Richard Levitte] 6084 6085 *) Windows apparently can't transparently handle global 6086 variables defined in DLLs. Initialisations such as: 6087 6088 const ASN1_ITEM *it = &ASN1_INTEGER_it; 6089 6090 wont compile. This is used by the any applications that need to 6091 declare their own ASN1 modules. This was fixed by adding the option 6092 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 6093 needed for static libraries under Win32. 6094 [Steve Henson] 6095 6096 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 6097 setting of purpose and trust fields. New X509_STORE trust and 6098 purpose functions and tidy up setting in other SSL functions. 6099 [Steve Henson] 6100 6101 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 6102 structure. These are inherited by X509_STORE_CTX when it is 6103 initialised. This allows various defaults to be set in the 6104 X509_STORE structure (such as flags for CRL checking and custom 6105 purpose or trust settings) for functions which only use X509_STORE_CTX 6106 internally such as S/MIME. 6107 6108 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 6109 trust settings if they are not set in X509_STORE. This allows X509_STORE 6110 purposes and trust (in S/MIME for example) to override any set by default. 6111 6112 Add command line options for CRL checking to smime, s_client and s_server 6113 applications. 6114 [Steve Henson] 6115 6116 *) Initial CRL based revocation checking. If the CRL checking flag(s) 6117 are set then the CRL is looked up in the X509_STORE structure and 6118 its validity and signature checked, then if the certificate is found 6119 in the CRL the verify fails with a revoked error. 6120 6121 Various new CRL related callbacks added to X509_STORE_CTX structure. 6122 6123 Command line options added to 'verify' application to support this. 6124 6125 This needs some additional work, such as being able to handle multiple 6126 CRLs with different times, extension based lookup (rather than just 6127 by subject name) and ultimately more complete V2 CRL extension 6128 handling. 6129 [Steve Henson] 6130 6131 *) Add a general user interface API (crypto/ui/). This is designed 6132 to replace things like des_read_password and friends (backward 6133 compatibility functions using this new API are provided). 6134 The purpose is to remove prompting functions from the DES code 6135 section as well as provide for prompting through dialog boxes in 6136 a window system and the like. 6137 [Richard Levitte] 6138 6139 *) Add "ex_data" support to ENGINE so implementations can add state at a 6140 per-structure level rather than having to store it globally. 6141 [Geoff] 6142 6143 *) Make it possible for ENGINE structures to be copied when retrieved by 6144 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 6145 This causes the "original" ENGINE structure to act like a template, 6146 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 6147 operational state can be localised to each ENGINE structure, despite the 6148 fact they all share the same "methods". New ENGINE structures returned in 6149 this case have no functional references and the return value is the single 6150 structural reference. This matches the single structural reference returned 6151 by ENGINE_by_id() normally, when it is incremented on the pre-existing 6152 ENGINE structure. 6153 [Geoff] 6154 6155 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 6156 needs to match any other type at all we need to manually clear the 6157 tag cache. 6158 [Steve Henson] 6159 6160 *) Changes to the "openssl engine" utility to include; 6161 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 6162 about an ENGINE's available control commands. 6163 - executing control commands from command line arguments using the 6164 '-pre' and '-post' switches. '-post' is only used if '-t' is 6165 specified and the ENGINE is successfully initialised. The syntax for 6166 the individual commands are colon-separated, for example; 6167 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 6168 [Geoff] 6169 6170 *) New dynamic control command support for ENGINEs. ENGINEs can now 6171 declare their own commands (numbers), names (strings), descriptions, 6172 and input types for run-time discovery by calling applications. A 6173 subset of these commands are implicitly classed as "executable" 6174 depending on their input type, and only these can be invoked through 6175 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 6176 can be based on user input, config files, etc). The distinction is 6177 that "executable" commands cannot return anything other than a boolean 6178 result and can only support numeric or string input, whereas some 6179 discoverable commands may only be for direct use through 6180 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 6181 pointers, or other custom uses. The "executable" commands are to 6182 support parameterisations of ENGINE behaviour that can be 6183 unambiguously defined by ENGINEs and used consistently across any 6184 OpenSSL-based application. Commands have been added to all the 6185 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 6186 control over shared-library paths without source code alterations. 6187 [Geoff] 6188 6189 *) Changed all ENGINE implementations to dynamically allocate their 6190 ENGINEs rather than declaring them statically. Apart from this being 6191 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 6192 this also allows the implementations to compile without using the 6193 internal engine_int.h header. 6194 [Geoff] 6195 6196 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 6197 'const' value. Any code that should be able to modify a RAND_METHOD 6198 should already have non-const pointers to it (ie. they should only 6199 modify their own ones). 6200 [Geoff] 6201 6202 *) Made a variety of little tweaks to the ENGINE code. 6203 - "atalla" and "ubsec" string definitions were moved from header files 6204 to C code. "nuron" string definitions were placed in variables 6205 rather than hard-coded - allowing parameterisation of these values 6206 later on via ctrl() commands. 6207 - Removed unused "#if 0"'d code. 6208 - Fixed engine list iteration code so it uses ENGINE_free() to release 6209 structural references. 6210 - Constified the RAND_METHOD element of ENGINE structures. 6211 - Constified various get/set functions as appropriate and added 6212 missing functions (including a catch-all ENGINE_cpy that duplicates 6213 all ENGINE values onto a new ENGINE except reference counts/state). 6214 - Removed NULL parameter checks in get/set functions. Setting a method 6215 or function to NULL is a way of cancelling out a previously set 6216 value. Passing a NULL ENGINE parameter is just plain stupid anyway 6217 and doesn't justify the extra error symbols and code. 6218 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 6219 flags from engine_int.h to engine.h. 6220 - Changed prototypes for ENGINE handler functions (init(), finish(), 6221 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 6222 [Geoff] 6223 6224 *) Implement binary inversion algorithm for BN_mod_inverse in addition 6225 to the algorithm using long division. The binary algorithm can be 6226 used only if the modulus is odd. On 32-bit systems, it is faster 6227 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 6228 roughly 5-15% for 256-bit moduli), so we use it only for moduli 6229 up to 450 bits. In 64-bit environments, the binary algorithm 6230 appears to be advantageous for much longer moduli; here we use it 6231 for moduli up to 2048 bits. 6232 [Bodo Moeller] 6233 6234 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 6235 could not support the combine flag in choice fields. 6236 [Steve Henson] 6237 6238 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 6239 extensions from a certificate request to the certificate. 6240 [Steve Henson] 6241 6242 *) Allow multiple 'certopt' and 'nameopt' options to be separated 6243 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 6244 file: this allows the display of the certificate about to be 6245 signed to be customised, to allow certain fields to be included 6246 or excluded and extension details. The old system didn't display 6247 multicharacter strings properly, omitted fields not in the policy 6248 and couldn't display additional details such as extensions. 6249 [Steve Henson] 6250 6251 *) Function EC_POINTs_mul for multiple scalar multiplication 6252 of an arbitrary number of elliptic curve points 6253 \sum scalars[i]*points[i], 6254 optionally including the generator defined for the EC_GROUP: 6255 scalar*generator + \sum scalars[i]*points[i]. 6256 6257 EC_POINT_mul is a simple wrapper function for the typical case 6258 that the point list has just one item (besides the optional 6259 generator). 6260 [Bodo Moeller] 6261 6262 *) First EC_METHODs for curves over GF(p): 6263 6264 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 6265 operations and provides various method functions that can also 6266 operate with faster implementations of modular arithmetic. 6267 6268 EC_GFp_mont_method() reuses most functions that are part of 6269 EC_GFp_simple_method, but uses Montgomery arithmetic. 6270 6271 [Bodo Moeller; point addition and point doubling 6272 implementation directly derived from source code provided by 6273 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 6274 6275 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 6276 crypto/ec/ec_lib.c): 6277 6278 Curves are EC_GROUP objects (with an optional group generator) 6279 based on EC_METHODs that are built into the library. 6280 6281 Points are EC_POINT objects based on EC_GROUP objects. 6282 6283 Most of the framework would be able to handle curves over arbitrary 6284 finite fields, but as there are no obvious types for fields other 6285 than GF(p), some functions are limited to that for now. 6286 [Bodo Moeller] 6287 6288 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 6289 that the file contains a complete HTTP response. 6290 [Richard Levitte] 6291 6292 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 6293 change the def and num file printf format specifier from "%-40sXXX" 6294 to "%-39s XXX". The latter will always guarantee a space after the 6295 field while the former will cause them to run together if the field 6296 is 40 of more characters long. 6297 [Steve Henson] 6298 6299 *) Constify the cipher and digest 'method' functions and structures 6300 and modify related functions to take constant EVP_MD and EVP_CIPHER 6301 pointers. 6302 [Steve Henson] 6303 6304 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 6305 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 6306 [Bodo Moeller] 6307 6308 *) Modify EVP_Digest*() routines so they now return values. Although the 6309 internal software routines can never fail additional hardware versions 6310 might. 6311 [Steve Henson] 6312 6313 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 6314 6315 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 6316 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 6317 6318 ASN1 error codes 6319 ERR_R_NESTED_ASN1_ERROR 6320 ... 6321 ERR_R_MISSING_ASN1_EOS 6322 were 4 .. 9, conflicting with 6323 ERR_LIB_RSA (= ERR_R_RSA_LIB) 6324 ... 6325 ERR_LIB_PEM (= ERR_R_PEM_LIB). 6326 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 6327 6328 Add new error code 'ERR_R_INTERNAL_ERROR'. 6329 [Bodo Moeller] 6330 6331 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 6332 suffices. 6333 [Bodo Moeller] 6334 6335 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 6336 sets the subject name for a new request or supersedes the 6337 subject name in a given request. Formats that can be parsed are 6338 'CN=Some Name, OU=myOU, C=IT' 6339 and 6340 'CN=Some Name/OU=myOU/C=IT'. 6341 6342 Add options '-batch' and '-verbose' to 'openssl req'. 6343 [Massimiliano Pala <madwolf@hackmasters.net>] 6344 6345 *) Introduce the possibility to access global variables through 6346 functions on platform were that's the best way to handle exporting 6347 global variables in shared libraries. To enable this functionality, 6348 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 6349 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 6350 is normally done by Configure or something similar). 6351 6352 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 6353 in the source file (foo.c) like this: 6354 6355 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 6356 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 6357 6358 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 6359 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 6360 6361 OPENSSL_DECLARE_GLOBAL(int,foo); 6362 #define foo OPENSSL_GLOBAL_REF(foo) 6363 OPENSSL_DECLARE_GLOBAL(double,bar); 6364 #define bar OPENSSL_GLOBAL_REF(bar) 6365 6366 The #defines are very important, and therefore so is including the 6367 header file everywhere where the defined globals are used. 6368 6369 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 6370 of ASN.1 items, but that structure is a bit different. 6371 6372 The largest change is in util/mkdef.pl which has been enhanced with 6373 better and easier to understand logic to choose which symbols should 6374 go into the Windows .def files as well as a number of fixes and code 6375 cleanup (among others, algorithm keywords are now sorted 6376 lexicographically to avoid constant rewrites). 6377 [Richard Levitte] 6378 6379 *) In BN_div() keep a copy of the sign of 'num' before writing the 6380 result to 'rm' because if rm==num the value will be overwritten 6381 and produce the wrong result if 'num' is negative: this caused 6382 problems with BN_mod() and BN_nnmod(). 6383 [Steve Henson] 6384 6385 *) Function OCSP_request_verify(). This checks the signature on an 6386 OCSP request and verifies the signer certificate. The signer 6387 certificate is just checked for a generic purpose and OCSP request 6388 trust settings. 6389 [Steve Henson] 6390 6391 *) Add OCSP_check_validity() function to check the validity of OCSP 6392 responses. OCSP responses are prepared in real time and may only 6393 be a few seconds old. Simply checking that the current time lies 6394 between thisUpdate and nextUpdate max reject otherwise valid responses 6395 caused by either OCSP responder or client clock inaccuracy. Instead 6396 we allow thisUpdate and nextUpdate to fall within a certain period of 6397 the current time. The age of the response can also optionally be 6398 checked. Two new options -validity_period and -status_age added to 6399 ocsp utility. 6400 [Steve Henson] 6401 6402 *) If signature or public key algorithm is unrecognized print out its 6403 OID rather that just UNKNOWN. 6404 [Steve Henson] 6405 6406 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 6407 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 6408 ID to be generated from the issuer certificate alone which can then be 6409 passed to OCSP_id_issuer_cmp(). 6410 [Steve Henson] 6411 6412 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 6413 ASN1 modules to export functions returning ASN1_ITEM pointers 6414 instead of the ASN1_ITEM structures themselves. This adds several 6415 new macros which allow the underlying ASN1 function/structure to 6416 be accessed transparently. As a result code should not use ASN1_ITEM 6417 references directly (such as &X509_it) but instead use the relevant 6418 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 6419 use of the new ASN1 code on platforms where exporting structures 6420 is problematical (for example in shared libraries) but exporting 6421 functions returning pointers to structures is not. 6422 [Steve Henson] 6423 6424 *) Add support for overriding the generation of SSL/TLS session IDs. 6425 These callbacks can be registered either in an SSL_CTX or per SSL. 6426 The purpose of this is to allow applications to control, if they wish, 6427 the arbitrary values chosen for use as session IDs, particularly as it 6428 can be useful for session caching in multiple-server environments. A 6429 command-line switch for testing this (and any client code that wishes 6430 to use such a feature) has been added to "s_server". 6431 [Geoff Thorpe, Lutz Jaenicke] 6432 6433 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 6434 of the form '#if defined(...) || defined(...) || ...' and 6435 '#if !defined(...) && !defined(...) && ...'. This also avoids 6436 the growing number of special cases it was previously handling. 6437 [Richard Levitte] 6438 6439 *) Make all configuration macros available for application by making 6440 sure they are available in opensslconf.h, by giving them names starting 6441 with "OPENSSL_" to avoid conflicts with other packages and by making 6442 sure e_os2.h will cover all platform-specific cases together with 6443 opensslconf.h. 6444 Additionally, it is now possible to define configuration/platform- 6445 specific names (called "system identities"). In the C code, these 6446 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 6447 macro with the name beginning with "OPENSSL_SYS_", which is determined 6448 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 6449 what is available. 6450 [Richard Levitte] 6451 6452 *) New option -set_serial to 'req' and 'x509' this allows the serial 6453 number to use to be specified on the command line. Previously self 6454 signed certificates were hard coded with serial number 0 and the 6455 CA options of 'x509' had to use a serial number in a file which was 6456 auto incremented. 6457 [Steve Henson] 6458 6459 *) New options to 'ca' utility to support V2 CRL entry extensions. 6460 Currently CRL reason, invalidity date and hold instruction are 6461 supported. Add new CRL extensions to V3 code and some new objects. 6462 [Steve Henson] 6463 6464 *) New function EVP_CIPHER_CTX_set_padding() this is used to 6465 disable standard block padding (aka PKCS#5 padding) in the EVP 6466 API, which was previously mandatory. This means that the data is 6467 not padded in any way and so the total length much be a multiple 6468 of the block size, otherwise an error occurs. 6469 [Steve Henson] 6470 6471 *) Initial (incomplete) OCSP SSL support. 6472 [Steve Henson] 6473 6474 *) New function OCSP_parse_url(). This splits up a URL into its host, 6475 port and path components: primarily to parse OCSP URLs. New -url 6476 option to ocsp utility. 6477 [Steve Henson] 6478 6479 *) New nonce behavior. The return value of OCSP_check_nonce() now 6480 reflects the various checks performed. Applications can decide 6481 whether to tolerate certain situations such as an absent nonce 6482 in a response when one was present in a request: the ocsp application 6483 just prints out a warning. New function OCSP_add1_basic_nonce() 6484 this is to allow responders to include a nonce in a response even if 6485 the request is nonce-less. 6486 [Steve Henson] 6487 6488 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 6489 skipped when using openssl x509 multiple times on a single input file, 6490 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 6491 [Bodo Moeller] 6492 6493 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 6494 set string type: to handle setting ASN1_TIME structures. Fix ca 6495 utility to correctly initialize revocation date of CRLs. 6496 [Steve Henson] 6497 6498 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 6499 the clients preferred ciphersuites and rather use its own preferences. 6500 Should help to work around M$ SGC (Server Gated Cryptography) bug in 6501 Internet Explorer by ensuring unchanged hash method during stepup. 6502 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 6503 [Lutz Jaenicke] 6504 6505 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 6506 to aes and add a new 'exist' option to print out symbols that don't 6507 appear to exist. 6508 [Steve Henson] 6509 6510 *) Additional options to ocsp utility to allow flags to be set and 6511 additional certificates supplied. 6512 [Steve Henson] 6513 6514 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 6515 OCSP client a number of certificate to only verify the response 6516 signature against. 6517 [Richard Levitte] 6518 6519 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 6520 handle the new API. Currently only ECB, CBC modes supported. Add new 6521 AES OIDs. 6522 6523 Add TLS AES ciphersuites as described in RFC3268, "Advanced 6524 Encryption Standard (AES) Ciphersuites for Transport Layer 6525 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 6526 not enabled by default and were not part of the "ALL" ciphersuite 6527 alias because they were not yet official; they could be 6528 explicitly requested by specifying the "AESdraft" ciphersuite 6529 group alias. In the final release of OpenSSL 0.9.7, the group 6530 alias is called "AES" and is part of "ALL".) 6531 [Ben Laurie, Steve Henson, Bodo Moeller] 6532 6533 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 6534 request to response. 6535 [Steve Henson] 6536 6537 *) Functions for OCSP responders. OCSP_request_onereq_count(), 6538 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 6539 extract information from a certificate request. OCSP_response_create() 6540 creates a response and optionally adds a basic response structure. 6541 OCSP_basic_add1_status() adds a complete single response to a basic 6542 response and returns the OCSP_SINGLERESP structure just added (to allow 6543 extensions to be included for example). OCSP_basic_add1_cert() adds a 6544 certificate to a basic response and OCSP_basic_sign() signs a basic 6545 response with various flags. New helper functions ASN1_TIME_check() 6546 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 6547 (converts ASN1_TIME to GeneralizedTime). 6548 [Steve Henson] 6549 6550 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 6551 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 6552 structure from a certificate. X509_pubkey_digest() digests the public_key 6553 contents: this is used in various key identifiers. 6554 [Steve Henson] 6555 6556 *) Make sk_sort() tolerate a NULL argument. 6557 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 6558 6559 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 6560 passed by the function are trusted implicitly. If any of them signed the 6561 response then it is assumed to be valid and is not verified. 6562 [Steve Henson] 6563 6564 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 6565 to data. This was previously part of the PKCS7 ASN1 code. This 6566 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 6567 [Steve Henson, reported by Kenneth R. Robinette 6568 <support@securenetterm.com>] 6569 6570 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 6571 routines: without these tracing memory leaks is very painful. 6572 Fix leaks in PKCS12 and PKCS7 routines. 6573 [Steve Henson] 6574 6575 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 6576 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 6577 effectively meant GeneralizedTime would never be used. Now it 6578 is initialised to -1 but X509_time_adj() now has to check the value 6579 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 6580 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 6581 [Steve Henson, reported by Kenneth R. Robinette 6582 <support@securenetterm.com>] 6583 6584 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 6585 result in a zero length in the ASN1_INTEGER structure which was 6586 not consistent with the structure when d2i_ASN1_INTEGER() was used 6587 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 6588 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 6589 where it did not print out a minus for negative ASN1_INTEGER. 6590 [Steve Henson] 6591 6592 *) Add summary printout to ocsp utility. The various functions which 6593 convert status values to strings have been renamed to: 6594 OCSP_response_status_str(), OCSP_cert_status_str() and 6595 OCSP_crl_reason_str() and are no longer static. New options 6596 to verify nonce values and to disable verification. OCSP response 6597 printout format cleaned up. 6598 [Steve Henson] 6599 6600 *) Add additional OCSP certificate checks. These are those specified 6601 in RFC2560. This consists of two separate checks: the CA of the 6602 certificate being checked must either be the OCSP signer certificate 6603 or the issuer of the OCSP signer certificate. In the latter case the 6604 OCSP signer certificate must contain the OCSP signing extended key 6605 usage. This check is performed by attempting to match the OCSP 6606 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 6607 in the OCSP_CERTID structures of the response. 6608 [Steve Henson] 6609 6610 *) Initial OCSP certificate verification added to OCSP_basic_verify() 6611 and related routines. This uses the standard OpenSSL certificate 6612 verify routines to perform initial checks (just CA validity) and 6613 to obtain the certificate chain. Then additional checks will be 6614 performed on the chain. Currently the root CA is checked to see 6615 if it is explicitly trusted for OCSP signing. This is used to set 6616 a root CA as a global signing root: that is any certificate that 6617 chains to that CA is an acceptable OCSP signing certificate. 6618 [Steve Henson] 6619 6620 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 6621 extensions from a separate configuration file. 6622 As when reading extensions from the main configuration file, 6623 the '-extensions ...' option may be used for specifying the 6624 section to use. 6625 [Massimiliano Pala <madwolf@comune.modena.it>] 6626 6627 *) New OCSP utility. Allows OCSP requests to be generated or 6628 read. The request can be sent to a responder and the output 6629 parsed, outputed or printed in text form. Not complete yet: 6630 still needs to check the OCSP response validity. 6631 [Steve Henson] 6632 6633 *) New subcommands for 'openssl ca': 6634 'openssl ca -status <serial>' prints the status of the cert with 6635 the given serial number (according to the index file). 6636 'openssl ca -updatedb' updates the expiry status of certificates 6637 in the index file. 6638 [Massimiliano Pala <madwolf@comune.modena.it>] 6639 6640 *) New '-newreq-nodes' command option to CA.pl. This is like 6641 '-newreq', but calls 'openssl req' with the '-nodes' option 6642 so that the resulting key is not encrypted. 6643 [Damien Miller <djm@mindrot.org>] 6644 6645 *) New configuration for the GNU Hurd. 6646 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 6647 6648 *) Initial code to implement OCSP basic response verify. This 6649 is currently incomplete. Currently just finds the signer's 6650 certificate and verifies the signature on the response. 6651 [Steve Henson] 6652 6653 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 6654 value of OPENSSLDIR. This is available via the new '-d' option 6655 to 'openssl version', and is also included in 'openssl version -a'. 6656 [Bodo Moeller] 6657 6658 *) Allowing defining memory allocation callbacks that will be given 6659 file name and line number information in additional arguments 6660 (a const char* and an int). The basic functionality remains, as 6661 well as the original possibility to just replace malloc(), 6662 realloc() and free() by functions that do not know about these 6663 additional arguments. To register and find out the current 6664 settings for extended allocation functions, the following 6665 functions are provided: 6666 6667 CRYPTO_set_mem_ex_functions 6668 CRYPTO_set_locked_mem_ex_functions 6669 CRYPTO_get_mem_ex_functions 6670 CRYPTO_get_locked_mem_ex_functions 6671 6672 These work the same way as CRYPTO_set_mem_functions and friends. 6673 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 6674 extended allocation function is enabled. 6675 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 6676 a conventional allocation function is enabled. 6677 [Richard Levitte, Bodo Moeller] 6678 6679 *) Finish off removing the remaining LHASH function pointer casts. 6680 There should no longer be any prototype-casting required when using 6681 the LHASH abstraction, and any casts that remain are "bugs". See 6682 the callback types and macros at the head of lhash.h for details 6683 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 6684 [Geoff Thorpe] 6685 6686 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 6687 If /dev/[u]random devices are not available or do not return enough 6688 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 6689 be queried. 6690 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 6691 /etc/entropy will be queried once each in this sequence, quering stops 6692 when enough entropy was collected without querying more sockets. 6693 [Lutz Jaenicke] 6694 6695 *) Change the Unix RAND_poll() variant to be able to poll several 6696 random devices, as specified by DEVRANDOM, until a sufficient amount 6697 of data has been collected. We spend at most 10 ms on each file 6698 (select timeout) and read in non-blocking mode. DEVRANDOM now 6699 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 6700 (previously it was just the string "/dev/urandom"), so on typical 6701 platforms the 10 ms delay will never occur. 6702 Also separate out the Unix variant to its own file, rand_unix.c. 6703 For VMS, there's a currently-empty rand_vms.c. 6704 [Richard Levitte] 6705 6706 *) Move OCSP client related routines to ocsp_cl.c. These 6707 provide utility functions which an application needing 6708 to issue a request to an OCSP responder and analyse the 6709 response will typically need: as opposed to those which an 6710 OCSP responder itself would need which will be added later. 6711 6712 OCSP_request_sign() signs an OCSP request with an API similar 6713 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 6714 response. OCSP_response_get1_basic() extracts basic response 6715 from response. OCSP_resp_find_status(): finds and extracts status 6716 information from an OCSP_CERTID structure (which will be created 6717 when the request structure is built). These are built from lower 6718 level functions which work on OCSP_SINGLERESP structures but 6719 wont normally be used unless the application wishes to examine 6720 extensions in the OCSP response for example. 6721 6722 Replace nonce routines with a pair of functions. 6723 OCSP_request_add1_nonce() adds a nonce value and optionally 6724 generates a random value. OCSP_check_nonce() checks the 6725 validity of the nonce in an OCSP response. 6726 [Steve Henson] 6727 6728 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 6729 This doesn't copy the supplied OCSP_CERTID and avoids the 6730 need to free up the newly created id. Change return type 6731 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 6732 This can then be used to add extensions to the request. 6733 Deleted OCSP_request_new(), since most of its functionality 6734 is now in OCSP_REQUEST_new() (and the case insensitive name 6735 clash) apart from the ability to set the request name which 6736 will be added elsewhere. 6737 [Steve Henson] 6738 6739 *) Update OCSP API. Remove obsolete extensions argument from 6740 various functions. Extensions are now handled using the new 6741 OCSP extension code. New simple OCSP HTTP function which 6742 can be used to send requests and parse the response. 6743 [Steve Henson] 6744 6745 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 6746 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 6747 uses the special reorder version of SET OF to sort the attributes 6748 and reorder them to match the encoded order. This resolves a long 6749 standing problem: a verify on a PKCS7 structure just after signing 6750 it used to fail because the attribute order did not match the 6751 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 6752 it uses the received order. This is necessary to tolerate some broken 6753 software that does not order SET OF. This is handled by encoding 6754 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 6755 to produce the required SET OF. 6756 [Steve Henson] 6757 6758 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 6759 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 6760 files to get correct declarations of the ASN.1 item variables. 6761 [Richard Levitte] 6762 6763 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 6764 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 6765 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 6766 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 6767 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 6768 ASN1_ITEM and no wrapper functions. 6769 [Steve Henson] 6770 6771 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 6772 replace the old function pointer based I/O routines. Change most of 6773 the *_d2i_bio() and *_d2i_fp() functions to use these. 6774 [Steve Henson] 6775 6776 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 6777 lines, recognice more "algorithms" that can be deselected, and make 6778 it complain about algorithm deselection that isn't recognised. 6779 [Richard Levitte] 6780 6781 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 6782 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 6783 to use new functions. Add NO_ASN1_OLD which can be set to remove 6784 some old style ASN1 functions: this can be used to determine if old 6785 code will still work when these eventually go away. 6786 [Steve Henson] 6787 6788 *) New extension functions for OCSP structures, these follow the 6789 same conventions as certificates and CRLs. 6790 [Steve Henson] 6791 6792 *) New function X509V3_add1_i2d(). This automatically encodes and 6793 adds an extension. Its behaviour can be customised with various 6794 flags to append, replace or delete. Various wrappers added for 6795 certifcates and CRLs. 6796 [Steve Henson] 6797 6798 *) Fix to avoid calling the underlying ASN1 print routine when 6799 an extension cannot be parsed. Correct a typo in the 6800 OCSP_SERVICELOC extension. Tidy up print OCSP format. 6801 [Steve Henson] 6802 6803 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 6804 entries for variables. 6805 [Steve Henson] 6806 6807 *) Add functionality to apps/openssl.c for detecting locking 6808 problems: As the program is single-threaded, all we have 6809 to do is register a locking callback using an array for 6810 storing which locks are currently held by the program. 6811 [Bodo Moeller] 6812 6813 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 6814 SSL_get_ex_data_X509_STORE_idx(), which is used in 6815 ssl_verify_cert_chain() and thus can be called at any time 6816 during TLS/SSL handshakes so that thread-safety is essential. 6817 Unfortunately, the ex_data design is not at all suited 6818 for multi-threaded use, so it probably should be abolished. 6819 [Bodo Moeller] 6820 6821 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 6822 [Broadcom, tweaked and integrated by Geoff Thorpe] 6823 6824 *) Move common extension printing code to new function 6825 X509V3_print_extensions(). Reorganise OCSP print routines and 6826 implement some needed OCSP ASN1 functions. Add OCSP extensions. 6827 [Steve Henson] 6828 6829 *) New function X509_signature_print() to remove duplication in some 6830 print routines. 6831 [Steve Henson] 6832 6833 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 6834 set (this was treated exactly the same as SET OF previously). This 6835 is used to reorder the STACK representing the structure to match the 6836 encoding. This will be used to get round a problem where a PKCS7 6837 structure which was signed could not be verified because the STACK 6838 order did not reflect the encoded order. 6839 [Steve Henson] 6840 6841 *) Reimplement the OCSP ASN1 module using the new code. 6842 [Steve Henson] 6843 6844 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 6845 for its ASN1 operations. The old style function pointers still exist 6846 for now but they will eventually go away. 6847 [Steve Henson] 6848 6849 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 6850 completely replaces the old ASN1 functionality with a table driven 6851 encoder and decoder which interprets an ASN1_ITEM structure describing 6852 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 6853 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 6854 has also been converted to the new form. 6855 [Steve Henson] 6856 6857 *) Change BN_mod_exp_recp so that negative moduli are tolerated 6858 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 6859 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 6860 for negative moduli. 6861 [Bodo Moeller] 6862 6863 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 6864 of not touching the result's sign bit. 6865 [Bodo Moeller] 6866 6867 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 6868 set. 6869 [Bodo Moeller] 6870 6871 *) Changed the LHASH code to use prototypes for callbacks, and created 6872 macros to declare and implement thin (optionally static) functions 6873 that provide type-safety and avoid function pointer casting for the 6874 type-specific callbacks. 6875 [Geoff Thorpe] 6876 6877 *) Added Kerberos Cipher Suites to be used with TLS, as written in 6878 RFC 2712. 6879 [Veers Staats <staatsvr@asc.hpc.mil>, 6880 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 6881 6882 *) Reformat the FAQ so the different questions and answers can be divided 6883 in sections depending on the subject. 6884 [Richard Levitte] 6885 6886 *) Have the zlib compression code load ZLIB.DLL dynamically under 6887 Windows. 6888 [Richard Levitte] 6889 6890 *) New function BN_mod_sqrt for computing square roots modulo a prime 6891 (using the probabilistic Tonelli-Shanks algorithm unless 6892 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 6893 be handled deterministically). 6894 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6895 6896 *) Make BN_mod_inverse faster by explicitly handling small quotients 6897 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 6898 512 bits], about 30% for larger ones [1024 or 2048 bits].) 6899 [Bodo Moeller] 6900 6901 *) New function BN_kronecker. 6902 [Bodo Moeller] 6903 6904 *) Fix BN_gcd so that it works on negative inputs; the result is 6905 positive unless both parameters are zero. 6906 Previously something reasonably close to an infinite loop was 6907 possible because numbers could be growing instead of shrinking 6908 in the implementation of Euclid's algorithm. 6909 [Bodo Moeller] 6910 6911 *) Fix BN_is_word() and BN_is_one() macros to take into account the 6912 sign of the number in question. 6913 6914 Fix BN_is_word(a,w) to work correctly for w == 0. 6915 6916 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 6917 because its test if the absolute value of 'a' equals 'w'. 6918 Note that BN_abs_is_word does *not* handle w == 0 reliably; 6919 it exists mostly for use in the implementations of BN_is_zero(), 6920 BN_is_one(), and BN_is_word(). 6921 [Bodo Moeller] 6922 6923 *) New function BN_swap. 6924 [Bodo Moeller] 6925 6926 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 6927 the exponentiation functions are more likely to produce reasonable 6928 results on negative inputs. 6929 [Bodo Moeller] 6930 6931 *) Change BN_mod_mul so that the result is always non-negative. 6932 Previously, it could be negative if one of the factors was negative; 6933 I don't think anyone really wanted that behaviour. 6934 [Bodo Moeller] 6935 6936 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 6937 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 6938 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 6939 and add new functions: 6940 6941 BN_nnmod 6942 BN_mod_sqr 6943 BN_mod_add 6944 BN_mod_add_quick 6945 BN_mod_sub 6946 BN_mod_sub_quick 6947 BN_mod_lshift1 6948 BN_mod_lshift1_quick 6949 BN_mod_lshift 6950 BN_mod_lshift_quick 6951 6952 These functions always generate non-negative results. 6953 6954 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 6955 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 6956 6957 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 6958 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 6959 be reduced modulo m. 6960 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6961 6962#if 0 6963 The following entry accidentily appeared in the CHANGES file 6964 distributed with OpenSSL 0.9.7. The modifications described in 6965 it do *not* apply to OpenSSL 0.9.7. 6966 6967 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 6968 was actually never needed) and in BN_mul(). The removal in BN_mul() 6969 required a small change in bn_mul_part_recursive() and the addition 6970 of the functions bn_cmp_part_words(), bn_sub_part_words() and 6971 bn_add_part_words(), which do the same thing as bn_cmp_words(), 6972 bn_sub_words() and bn_add_words() except they take arrays with 6973 differing sizes. 6974 [Richard Levitte] 6975#endif 6976 6977 *) In 'openssl passwd', verify passwords read from the terminal 6978 unless the '-salt' option is used (which usually means that 6979 verification would just waste user's time since the resulting 6980 hash is going to be compared with some given password hash) 6981 or the new '-noverify' option is used. 6982 6983 This is an incompatible change, but it does not affect 6984 non-interactive use of 'openssl passwd' (passwords on the command 6985 line, '-stdin' option, '-in ...' option) and thus should not 6986 cause any problems. 6987 [Bodo Moeller] 6988 6989 *) Remove all references to RSAref, since there's no more need for it. 6990 [Richard Levitte] 6991 6992 *) Make DSO load along a path given through an environment variable 6993 (SHLIB_PATH) with shl_load(). 6994 [Richard Levitte] 6995 6996 *) Constify the ENGINE code as a result of BIGNUM constification. 6997 Also constify the RSA code and most things related to it. In a 6998 few places, most notable in the depth of the ASN.1 code, ugly 6999 casts back to non-const were required (to be solved at a later 7000 time) 7001 [Richard Levitte] 7002 7003 *) Make it so the openssl application has all engines loaded by default. 7004 [Richard Levitte] 7005 7006 *) Constify the BIGNUM routines a little more. 7007 [Richard Levitte] 7008 7009 *) Add the following functions: 7010 7011 ENGINE_load_cswift() 7012 ENGINE_load_chil() 7013 ENGINE_load_atalla() 7014 ENGINE_load_nuron() 7015 ENGINE_load_builtin_engines() 7016 7017 That way, an application can itself choose if external engines that 7018 are built-in in OpenSSL shall ever be used or not. The benefit is 7019 that applications won't have to be linked with libdl or other dso 7020 libraries unless it's really needed. 7021 7022 Changed 'openssl engine' to load all engines on demand. 7023 Changed the engine header files to avoid the duplication of some 7024 declarations (they differed!). 7025 [Richard Levitte] 7026 7027 *) 'openssl engine' can now list capabilities. 7028 [Richard Levitte] 7029 7030 *) Better error reporting in 'openssl engine'. 7031 [Richard Levitte] 7032 7033 *) Never call load_dh_param(NULL) in s_server. 7034 [Bodo Moeller] 7035 7036 *) Add engine application. It can currently list engines by name and 7037 identity, and test if they are actually available. 7038 [Richard Levitte] 7039 7040 *) Improve RPM specification file by forcing symbolic linking and making 7041 sure the installed documentation is also owned by root.root. 7042 [Damien Miller <djm@mindrot.org>] 7043 7044 *) Give the OpenSSL applications more possibilities to make use of 7045 keys (public as well as private) handled by engines. 7046 [Richard Levitte] 7047 7048 *) Add OCSP code that comes from CertCo. 7049 [Richard Levitte] 7050 7051 *) Add VMS support for the Rijndael code. 7052 [Richard Levitte] 7053 7054 *) Added untested support for Nuron crypto accelerator. 7055 [Ben Laurie] 7056 7057 *) Add support for external cryptographic devices. This code was 7058 previously distributed separately as the "engine" branch. 7059 [Geoff Thorpe, Richard Levitte] 7060 7061 *) Rework the filename-translation in the DSO code. It is now possible to 7062 have far greater control over how a "name" is turned into a filename 7063 depending on the operating environment and any oddities about the 7064 different shared library filenames on each system. 7065 [Geoff Thorpe] 7066 7067 *) Support threads on FreeBSD-elf in Configure. 7068 [Richard Levitte] 7069 7070 *) Fix for SHA1 assembly problem with MASM: it produces 7071 warnings about corrupt line number information when assembling 7072 with debugging information. This is caused by the overlapping 7073 of two sections. 7074 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 7075 7076 *) NCONF changes. 7077 NCONF_get_number() has no error checking at all. As a replacement, 7078 NCONF_get_number_e() is defined (_e for "error checking") and is 7079 promoted strongly. The old NCONF_get_number is kept around for 7080 binary backward compatibility. 7081 Make it possible for methods to load from something other than a BIO, 7082 by providing a function pointer that is given a name instead of a BIO. 7083 For example, this could be used to load configuration data from an 7084 LDAP server. 7085 [Richard Levitte] 7086 7087 *) Fix for non blocking accept BIOs. Added new I/O special reason 7088 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 7089 with non blocking I/O was not possible because no retry code was 7090 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 7091 this case. 7092 [Steve Henson] 7093 7094 *) Added the beginnings of Rijndael support. 7095 [Ben Laurie] 7096 7097 *) Fix for bug in DirectoryString mask setting. Add support for 7098 X509_NAME_print_ex() in 'req' and X509_print_ex() function 7099 to allow certificate printing to more controllable, additional 7100 'certopt' option to 'x509' to allow new printing options to be 7101 set. 7102 [Steve Henson] 7103 7104 *) Clean old EAY MD5 hack from e_os.h. 7105 [Richard Levitte] 7106 7107 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 7108 7109 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 7110 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 7111 [Joe Orton, Steve Henson] 7112 7113 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 7114 7115 *) Fix additional bug revealed by the NISCC test suite: 7116 7117 Stop bug triggering large recursion when presented with 7118 certain ASN.1 tags (CVE-2003-0851) 7119 [Steve Henson] 7120 7121 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 7122 7123 *) Fix various bugs revealed by running the NISCC test suite: 7124 7125 Stop out of bounds reads in the ASN1 code when presented with 7126 invalid tags (CVE-2003-0543 and CVE-2003-0544). 7127 7128 If verify callback ignores invalid public key errors don't try to check 7129 certificate signature with the NULL public key. 7130 7131 [Steve Henson] 7132 7133 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 7134 if the server requested one: as stated in TLS 1.0 and SSL 3.0 7135 specifications. 7136 [Steve Henson] 7137 7138 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 7139 extra data after the compression methods not only for TLS 1.0 7140 but also for SSL 3.0 (as required by the specification). 7141 [Bodo Moeller; problem pointed out by Matthias Loepfe] 7142 7143 *) Change X509_certificate_type() to mark the key as exported/exportable 7144 when it's 512 *bits* long, not 512 bytes. 7145 [Richard Levitte] 7146 7147 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 7148 7149 *) Countermeasure against the Klima-Pokorny-Rosa extension of 7150 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 7151 a protocol version number mismatch like a decryption error 7152 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 7153 [Bodo Moeller] 7154 7155 *) Turn on RSA blinding by default in the default implementation 7156 to avoid a timing attack. Applications that don't want it can call 7157 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 7158 They would be ill-advised to do so in most cases. 7159 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 7160 7161 *) Change RSA blinding code so that it works when the PRNG is not 7162 seeded (in this case, the secret RSA exponent is abused as 7163 an unpredictable seed -- if it is not unpredictable, there 7164 is no point in blinding anyway). Make RSA blinding thread-safe 7165 by remembering the creator's thread ID in rsa->blinding and 7166 having all other threads use local one-time blinding factors 7167 (this requires more computation than sharing rsa->blinding, but 7168 avoids excessive locking; and if an RSA object is not shared 7169 between threads, blinding will still be very fast). 7170 [Bodo Moeller] 7171 7172 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 7173 7174 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 7175 via timing by performing a MAC computation even if incorrrect 7176 block cipher padding has been found. This is a countermeasure 7177 against active attacks where the attacker has to distinguish 7178 between bad padding and a MAC verification error. (CVE-2003-0078) 7179 7180 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 7181 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 7182 Martin Vuagnoux (EPFL, Ilion)] 7183 7184 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 7185 7186 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 7187 memory from it's contents. This is done with a counter that will 7188 place alternating values in each byte. This can be used to solve 7189 two issues: 1) the removal of calls to memset() by highly optimizing 7190 compilers, and 2) cleansing with other values than 0, since those can 7191 be read through on certain media, for example a swap space on disk. 7192 [Geoff Thorpe] 7193 7194 *) Bugfix: client side session caching did not work with external caching, 7195 because the session->cipher setting was not restored when reloading 7196 from the external cache. This problem was masked, when 7197 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 7198 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 7199 [Lutz Jaenicke] 7200 7201 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 7202 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 7203 [Zeev Lieber <zeev-l@yahoo.com>] 7204 7205 *) Undo an undocumented change introduced in 0.9.6e which caused 7206 repeated calls to OpenSSL_add_all_ciphers() and 7207 OpenSSL_add_all_digests() to be ignored, even after calling 7208 EVP_cleanup(). 7209 [Richard Levitte] 7210 7211 *) Change the default configuration reader to deal with last line not 7212 being properly terminated. 7213 [Richard Levitte] 7214 7215 *) Change X509_NAME_cmp() so it applies the special rules on handling 7216 DN values that are of type PrintableString, as well as RDNs of type 7217 emailAddress where the value has the type ia5String. 7218 [stefank@valicert.com via Richard Levitte] 7219 7220 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 7221 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 7222 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 7223 the bitwise-OR of the two for use by the majority of applications 7224 wanting this behaviour, and update the docs. The documented 7225 behaviour and actual behaviour were inconsistent and had been 7226 changing anyway, so this is more a bug-fix than a behavioural 7227 change. 7228 [Geoff Thorpe, diagnosed by Nadav Har'El] 7229 7230 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 7231 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 7232 [Bodo Moeller] 7233 7234 *) Fix initialization code race conditions in 7235 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 7236 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 7237 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 7238 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 7239 ssl2_get_cipher_by_char(), 7240 ssl3_get_cipher_by_char(). 7241 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 7242 7243 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 7244 the cached sessions are flushed, as the remove_cb() might use ex_data 7245 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 7246 (see [openssl.org #212]). 7247 [Geoff Thorpe, Lutz Jaenicke] 7248 7249 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 7250 length, instead of the encoding length to d2i_ASN1_OBJECT. 7251 [Steve Henson] 7252 7253 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 7254 7255 *) [In 0.9.6g-engine release:] 7256 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 7257 [Lynn Gazis <lgazis@rainbow.com>] 7258 7259 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 7260 7261 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 7262 and get fix the header length calculation. 7263 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 7264 Alon Kantor <alonk@checkpoint.com> (and others), 7265 Steve Henson] 7266 7267 *) Use proper error handling instead of 'assertions' in buffer 7268 overflow checks added in 0.9.6e. This prevents DoS (the 7269 assertions could call abort()). 7270 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 7271 7272 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 7273 7274 *) Add various sanity checks to asn1_get_length() to reject 7275 the ASN1 length bytes if they exceed sizeof(long), will appear 7276 negative or the content length exceeds the length of the 7277 supplied buffer. 7278 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7279 7280 *) Fix cipher selection routines: ciphers without encryption had no flags 7281 for the cipher strength set and where therefore not handled correctly 7282 by the selection routines (PR #130). 7283 [Lutz Jaenicke] 7284 7285 *) Fix EVP_dsa_sha macro. 7286 [Nils Larsch] 7287 7288 *) New option 7289 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 7290 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 7291 that was added in OpenSSL 0.9.6d. 7292 7293 As the countermeasure turned out to be incompatible with some 7294 broken SSL implementations, the new option is part of SSL_OP_ALL. 7295 SSL_OP_ALL is usually employed when compatibility with weird SSL 7296 implementations is desired (e.g. '-bugs' option to 's_client' and 7297 's_server'), so the new option is automatically set in many 7298 applications. 7299 [Bodo Moeller] 7300 7301 *) Changes in security patch: 7302 7303 Changes marked "(CHATS)" were sponsored by the Defense Advanced 7304 Research Projects Agency (DARPA) and Air Force Research Laboratory, 7305 Air Force Materiel Command, USAF, under agreement number 7306 F30602-01-2-0537. 7307 7308 *) Add various sanity checks to asn1_get_length() to reject 7309 the ASN1 length bytes if they exceed sizeof(long), will appear 7310 negative or the content length exceeds the length of the 7311 supplied buffer. (CVE-2002-0659) 7312 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 7313 7314 *) Assertions for various potential buffer overflows, not known to 7315 happen in practice. 7316 [Ben Laurie (CHATS)] 7317 7318 *) Various temporary buffers to hold ASCII versions of integers were 7319 too small for 64 bit platforms. (CVE-2002-0655) 7320 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 7321 7322 *) Remote buffer overflow in SSL3 protocol - an attacker could 7323 supply an oversized session ID to a client. (CVE-2002-0656) 7324 [Ben Laurie (CHATS)] 7325 7326 *) Remote buffer overflow in SSL2 protocol - an attacker could 7327 supply an oversized client master key. (CVE-2002-0656) 7328 [Ben Laurie (CHATS)] 7329 7330 Changes between 0.9.6c and 0.9.6d [9 May 2002] 7331 7332 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 7333 encoded as NULL) with id-dsa-with-sha1. 7334 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 7335 7336 *) Check various X509_...() return values in apps/req.c. 7337 [Nils Larsch <nla@trustcenter.de>] 7338 7339 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 7340 an end-of-file condition would erronously be flagged, when the CRLF 7341 was just at the end of a processed block. The bug was discovered when 7342 processing data through a buffering memory BIO handing the data to a 7343 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 7344 <ptsekov@syntrex.com> and Nedelcho Stanev. 7345 [Lutz Jaenicke] 7346 7347 *) Implement a countermeasure against a vulnerability recently found 7348 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 7349 before application data chunks to avoid the use of known IVs 7350 with data potentially chosen by the attacker. 7351 [Bodo Moeller] 7352 7353 *) Fix length checks in ssl3_get_client_hello(). 7354 [Bodo Moeller] 7355 7356 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 7357 to prevent ssl3_read_internal() from incorrectly assuming that 7358 ssl3_read_bytes() found application data while handshake 7359 processing was enabled when in fact s->s3->in_read_app_data was 7360 merely automatically cleared during the initial handshake. 7361 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 7362 7363 *) Fix object definitions for Private and Enterprise: they were not 7364 recognized in their shortname (=lowercase) representation. Extend 7365 obj_dat.pl to issue an error when using undefined keywords instead 7366 of silently ignoring the problem (Svenning Sorensen 7367 <sss@sss.dnsalias.net>). 7368 [Lutz Jaenicke] 7369 7370 *) Fix DH_generate_parameters() so that it works for 'non-standard' 7371 generators, i.e. generators other than 2 and 5. (Previously, the 7372 code did not properly initialise the 'add' and 'rem' values to 7373 BN_generate_prime().) 7374 7375 In the new general case, we do not insist that 'generator' is 7376 actually a primitive root: This requirement is rather pointless; 7377 a generator of the order-q subgroup is just as good, if not 7378 better. 7379 [Bodo Moeller] 7380 7381 *) Map new X509 verification errors to alerts. Discovered and submitted by 7382 Tom Wu <tom@arcot.com>. 7383 [Lutz Jaenicke] 7384 7385 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 7386 returning non-zero before the data has been completely received 7387 when using non-blocking I/O. 7388 [Bodo Moeller; problem pointed out by John Hughes] 7389 7390 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 7391 [Ben Laurie, Lutz Jaenicke] 7392 7393 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 7394 Yoram Zahavi <YoramZ@gilian.com>). 7395 [Lutz Jaenicke] 7396 7397 *) Add information about CygWin 1.3 and on, and preserve proper 7398 configuration for the versions before that. 7399 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 7400 7401 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 7402 check whether we deal with a copy of a session and do not delete from 7403 the cache in this case. Problem reported by "Izhar Shoshani Levi" 7404 <izhar@checkpoint.com>. 7405 [Lutz Jaenicke] 7406 7407 *) Do not store session data into the internal session cache, if it 7408 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 7409 flag is set). Proposed by Aslam <aslam@funk.com>. 7410 [Lutz Jaenicke] 7411 7412 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 7413 value is 0. 7414 [Richard Levitte] 7415 7416 *) [In 0.9.6d-engine release:] 7417 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 7418 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 7419 7420 *) Add the configuration target linux-s390x. 7421 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 7422 7423 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 7424 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 7425 variable as an indication that a ClientHello message has been 7426 received. As the flag value will be lost between multiple 7427 invocations of ssl3_accept when using non-blocking I/O, the 7428 function may not be aware that a handshake has actually taken 7429 place, thus preventing a new session from being added to the 7430 session cache. 7431 7432 To avoid this problem, we now set s->new_session to 2 instead of 7433 using a local variable. 7434 [Lutz Jaenicke, Bodo Moeller] 7435 7436 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 7437 if the SSL_R_LENGTH_MISMATCH error is detected. 7438 [Geoff Thorpe, Bodo Moeller] 7439 7440 *) New 'shared_ldflag' column in Configure platform table. 7441 [Richard Levitte] 7442 7443 *) Fix EVP_CIPHER_mode macro. 7444 ["Dan S. Camper" <dan@bti.net>] 7445 7446 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 7447 type, we must throw them away by setting rr->length to 0. 7448 [D P Chang <dpc@qualys.com>] 7449 7450 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 7451 7452 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 7453 <Dominikus.Scherkl@biodata.com>. (The previous implementation 7454 worked incorrectly for those cases where range = 10..._2 and 7455 3*range is two bits longer than range.) 7456 [Bodo Moeller] 7457 7458 *) Only add signing time to PKCS7 structures if it is not already 7459 present. 7460 [Steve Henson] 7461 7462 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 7463 OBJ_ld_ce should be OBJ_id_ce. 7464 Also some ip-pda OIDs in crypto/objects/objects.txt were 7465 incorrect (cf. RFC 3039). 7466 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 7467 7468 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 7469 returns early because it has nothing to do. 7470 [Andy Schneider <andy.schneider@bjss.co.uk>] 7471 7472 *) [In 0.9.6c-engine release:] 7473 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 7474 [Andy Schneider <andy.schneider@bjss.co.uk>] 7475 7476 *) [In 0.9.6c-engine release:] 7477 Add support for Cryptographic Appliance's keyserver technology. 7478 (Use engine 'keyclient') 7479 [Cryptographic Appliances and Geoff Thorpe] 7480 7481 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 7482 is called via tools/c89.sh because arguments have to be 7483 rearranged (all '-L' options must appear before the first object 7484 modules). 7485 [Richard Shapiro <rshapiro@abinitio.com>] 7486 7487 *) [In 0.9.6c-engine release:] 7488 Add support for Broadcom crypto accelerator cards, backported 7489 from 0.9.7. 7490 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 7491 7492 *) [In 0.9.6c-engine release:] 7493 Add support for SureWare crypto accelerator cards from 7494 Baltimore Technologies. (Use engine 'sureware') 7495 [Baltimore Technologies and Mark Cox] 7496 7497 *) [In 0.9.6c-engine release:] 7498 Add support for crypto accelerator cards from Accelerated 7499 Encryption Processing, www.aep.ie. (Use engine 'aep') 7500 [AEP Inc. and Mark Cox] 7501 7502 *) Add a configuration entry for gcc on UnixWare. 7503 [Gary Benson <gbenson@redhat.com>] 7504 7505 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 7506 messages are stored in a single piece (fixed-length part and 7507 variable-length part combined) and fix various bugs found on the way. 7508 [Bodo Moeller] 7509 7510 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 7511 instead. BIO_gethostbyname() does not know what timeouts are 7512 appropriate, so entries would stay in cache even when they have 7513 become invalid. 7514 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 7515 7516 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 7517 faced with a pathologically small ClientHello fragment that does 7518 not contain client_version: Instead of aborting with an error, 7519 simply choose the highest available protocol version (i.e., 7520 TLS 1.0 unless it is disabled). In practice, ClientHello 7521 messages are never sent like this, but this change gives us 7522 strictly correct behaviour at least for TLS. 7523 [Bodo Moeller] 7524 7525 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 7526 never resets s->method to s->ctx->method when called from within 7527 one of the SSL handshake functions. 7528 [Bodo Moeller; problem pointed out by Niko Baric] 7529 7530 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 7531 (sent using the client's version number) if client_version is 7532 smaller than the protocol version in use. Also change 7533 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 7534 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 7535 the client will at least see that alert. 7536 [Bodo Moeller] 7537 7538 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 7539 correctly. 7540 [Bodo Moeller] 7541 7542 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 7543 client receives HelloRequest while in a handshake. 7544 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 7545 7546 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 7547 should end in 'break', not 'goto end' which circuments various 7548 cleanups done in state SSL_ST_OK. But session related stuff 7549 must be disabled for SSL_ST_OK in the case that we just sent a 7550 HelloRequest. 7551 7552 Also avoid some overhead by not calling ssl_init_wbio_buffer() 7553 before just sending a HelloRequest. 7554 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 7555 7556 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 7557 reveal whether illegal block cipher padding was found or a MAC 7558 verification error occured. (Neither SSLerr() codes nor alerts 7559 are directly visible to potential attackers, but the information 7560 may leak via logfiles.) 7561 7562 Similar changes are not required for the SSL 2.0 implementation 7563 because the number of padding bytes is sent in clear for SSL 2.0, 7564 and the extra bytes are just ignored. However ssl/s2_pkt.c 7565 failed to verify that the purported number of padding bytes is in 7566 the legal range. 7567 [Bodo Moeller] 7568 7569 *) Add OpenUNIX-8 support including shared libraries 7570 (Boyd Lynn Gerber <gerberb@zenez.com>). 7571 [Lutz Jaenicke] 7572 7573 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 7574 'wristwatch attack' using huge encoding parameters (cf. 7575 James H. Manger's CRYPTO 2001 paper). Note that the 7576 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 7577 encoding parameters and hence was not vulnerable. 7578 [Bodo Moeller] 7579 7580 *) BN_sqr() bug fix. 7581 [Ulf M��ller, reported by Jim Ellis <jim.ellis@cavium.com>] 7582 7583 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 7584 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 7585 followed by modular reduction. 7586 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 7587 7588 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 7589 equivalent based on BN_pseudo_rand() instead of BN_rand(). 7590 [Bodo Moeller] 7591 7592 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 7593 This function was broken, as the check for a new client hello message 7594 to handle SGC did not allow these large messages. 7595 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 7596 [Lutz Jaenicke] 7597 7598 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 7599 [Lutz Jaenicke] 7600 7601 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 7602 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 7603 [Lutz Jaenicke] 7604 7605 *) Rework the configuration and shared library support for Tru64 Unix. 7606 The configuration part makes use of modern compiler features and 7607 still retains old compiler behavior for those that run older versions 7608 of the OS. The shared library support part includes a variant that 7609 uses the RPATH feature, and is available through the special 7610 configuration target "alpha-cc-rpath", which will never be selected 7611 automatically. 7612 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 7613 7614 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 7615 with the same message size as in ssl3_get_certificate_request(). 7616 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 7617 messages might inadvertently be reject as too long. 7618 [Petr Lampa <lampa@fee.vutbr.cz>] 7619 7620 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 7621 [Andy Polyakov] 7622 7623 *) Modified SSL library such that the verify_callback that has been set 7624 specificly for an SSL object with SSL_set_verify() is actually being 7625 used. Before the change, a verify_callback set with this function was 7626 ignored and the verify_callback() set in the SSL_CTX at the time of 7627 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 7628 to allow the necessary settings. 7629 [Lutz Jaenicke] 7630 7631 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 7632 explicitly to NULL, as at least on Solaris 8 this seems not always to be 7633 done automatically (in contradiction to the requirements of the C 7634 standard). This made problems when used from OpenSSH. 7635 [Lutz Jaenicke] 7636 7637 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 7638 dh->length and always used 7639 7640 BN_rand_range(priv_key, dh->p). 7641 7642 BN_rand_range() is not necessary for Diffie-Hellman, and this 7643 specific range makes Diffie-Hellman unnecessarily inefficient if 7644 dh->length (recommended exponent length) is much smaller than the 7645 length of dh->p. We could use BN_rand_range() if the order of 7646 the subgroup was stored in the DH structure, but we only have 7647 dh->length. 7648 7649 So switch back to 7650 7651 BN_rand(priv_key, l, ...) 7652 7653 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 7654 otherwise. 7655 [Bodo Moeller] 7656 7657 *) In 7658 7659 RSA_eay_public_encrypt 7660 RSA_eay_private_decrypt 7661 RSA_eay_private_encrypt (signing) 7662 RSA_eay_public_decrypt (signature verification) 7663 7664 (default implementations for RSA_public_encrypt, 7665 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 7666 always reject numbers >= n. 7667 [Bodo Moeller] 7668 7669 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 7670 to synchronize access to 'locking_thread'. This is necessary on 7671 systems where access to 'locking_thread' (an 'unsigned long' 7672 variable) is not atomic. 7673 [Bodo Moeller] 7674 7675 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 7676 *before* setting the 'crypto_lock_rand' flag. The previous code had 7677 a race condition if 0 is a valid thread ID. 7678 [Travis Vitek <vitek@roguewave.com>] 7679 7680 *) Add support for shared libraries under Irix. 7681 [Albert Chin-A-Young <china@thewrittenword.com>] 7682 7683 *) Add configuration option to build on Linux on both big-endian and 7684 little-endian MIPS. 7685 [Ralf Baechle <ralf@uni-koblenz.de>] 7686 7687 *) Add the possibility to create shared libraries on HP-UX. 7688 [Richard Levitte] 7689 7690 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 7691 7692 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 7693 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 7694 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 7695 PRNG state recovery was possible based on the output of 7696 one PRNG request appropriately sized to gain knowledge on 7697 'md' followed by enough consecutive 1-byte PRNG requests 7698 to traverse all of 'state'. 7699 7700 1. When updating 'md_local' (the current thread's copy of 'md') 7701 during PRNG output generation, hash all of the previous 7702 'md_local' value, not just the half used for PRNG output. 7703 7704 2. Make the number of bytes from 'state' included into the hash 7705 independent from the number of PRNG bytes requested. 7706 7707 The first measure alone would be sufficient to avoid 7708 Markku-Juhani's attack. (Actually it had never occurred 7709 to me that the half of 'md_local' used for chaining was the 7710 half from which PRNG output bytes were taken -- I had always 7711 assumed that the secret half would be used.) The second 7712 measure makes sure that additional data from 'state' is never 7713 mixed into 'md_local' in small portions; this heuristically 7714 further strengthens the PRNG. 7715 [Bodo Moeller] 7716 7717 *) Fix crypto/bn/asm/mips3.s. 7718 [Andy Polyakov] 7719 7720 *) When only the key is given to "enc", the IV is undefined. Print out 7721 an error message in this case. 7722 [Lutz Jaenicke] 7723 7724 *) Handle special case when X509_NAME is empty in X509 printing routines. 7725 [Steve Henson] 7726 7727 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 7728 positive and less than q. 7729 [Bodo Moeller] 7730 7731 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 7732 used: it isn't thread safe and the add_lock_callback should handle 7733 that itself. 7734 [Paul Rose <Paul.Rose@bridge.com>] 7735 7736 *) Verify that incoming data obeys the block size in 7737 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 7738 [Bodo Moeller] 7739 7740 *) Fix OAEP check. 7741 [Ulf M��ller, Bodo M��ller] 7742 7743 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 7744 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 7745 when fixing the server behaviour for backwards-compatible 'client 7746 hello' messages. (Note that the attack is impractical against 7747 SSL 3.0 and TLS 1.0 anyway because length and version checking 7748 means that the probability of guessing a valid ciphertext is 7749 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 7750 paper.) 7751 7752 Before 0.9.5, the countermeasure (hide the error by generating a 7753 random 'decryption result') did not work properly because 7754 ERR_clear_error() was missing, meaning that SSL_get_error() would 7755 detect the supposedly ignored error. 7756 7757 Both problems are now fixed. 7758 [Bodo Moeller] 7759 7760 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 7761 (previously it was 1024). 7762 [Bodo Moeller] 7763 7764 *) Fix for compatibility mode trust settings: ignore trust settings 7765 unless some valid trust or reject settings are present. 7766 [Steve Henson] 7767 7768 *) Fix for blowfish EVP: its a variable length cipher. 7769 [Steve Henson] 7770 7771 *) Fix various bugs related to DSA S/MIME verification. Handle missing 7772 parameters in DSA public key structures and return an error in the 7773 DSA routines if parameters are absent. 7774 [Steve Henson] 7775 7776 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 7777 in the current directory if neither $RANDFILE nor $HOME was set. 7778 RAND_file_name() in 0.9.6a returned NULL in this case. This has 7779 caused some confusion to Windows users who haven't defined $HOME. 7780 Thus RAND_file_name() is changed again: e_os.h can define a 7781 DEFAULT_HOME, which will be used if $HOME is not set. 7782 For Windows, we use "C:"; on other platforms, we still require 7783 environment variables. 7784 7785 *) Move 'if (!initialized) RAND_poll()' into regions protected by 7786 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 7787 having multiple threads call RAND_poll() concurrently. 7788 [Bodo Moeller] 7789 7790 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 7791 combination of a flag and a thread ID variable. 7792 Otherwise while one thread is in ssleay_rand_bytes (which sets the 7793 flag), *other* threads can enter ssleay_add_bytes without obeying 7794 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 7795 that they do not hold after the first thread unsets add_do_not_lock). 7796 [Bodo Moeller] 7797 7798 *) Change bctest again: '-x' expressions are not available in all 7799 versions of 'test'. 7800 [Bodo Moeller] 7801 7802 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 7803 7804 *) Fix a couple of memory leaks in PKCS7_dataDecode() 7805 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 7806 7807 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 7808 the default extension for executables, if any. Also, make the perl 7809 scripts that use symlink() to test if it really exists and use "cp" 7810 if it doesn't. All this made OpenSSL compilable and installable in 7811 CygWin. 7812 [Richard Levitte] 7813 7814 *) Fix for asn1_GetSequence() for indefinite length constructed data. 7815 If SEQUENCE is length is indefinite just set c->slen to the total 7816 amount of data available. 7817 [Steve Henson, reported by shige@FreeBSD.org] 7818 [This change does not apply to 0.9.7.] 7819 7820 *) Change bctest to avoid here-documents inside command substitution 7821 (workaround for FreeBSD /bin/sh bug). 7822 For compatibility with Ultrix, avoid shell functions (introduced 7823 in the bctest version that searches along $PATH). 7824 [Bodo Moeller] 7825 7826 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 7827 with des_encrypt() defined on some operating systems, like Solaris 7828 and UnixWare. 7829 [Richard Levitte] 7830 7831 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 7832 On the Importance of Eliminating Errors in Cryptographic 7833 Computations, J. Cryptology 14 (2001) 2, 101-119, 7834 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 7835 [Ulf Moeller] 7836 7837 *) MIPS assembler BIGNUM division bug fix. 7838 [Andy Polyakov] 7839 7840 *) Disabled incorrect Alpha assembler code. 7841 [Richard Levitte] 7842 7843 *) Fix PKCS#7 decode routines so they correctly update the length 7844 after reading an EOC for the EXPLICIT tag. 7845 [Steve Henson] 7846 [This change does not apply to 0.9.7.] 7847 7848 *) Fix bug in PKCS#12 key generation routines. This was triggered 7849 if a 3DES key was generated with a 0 initial byte. Include 7850 PKCS12_BROKEN_KEYGEN compilation option to retain the old 7851 (but broken) behaviour. 7852 [Steve Henson] 7853 7854 *) Enhance bctest to search for a working bc along $PATH and print 7855 it when found. 7856 [Tim Rice <tim@multitalents.net> via Richard Levitte] 7857 7858 *) Fix memory leaks in err.c: free err_data string if necessary; 7859 don't write to the wrong index in ERR_set_error_data. 7860 [Bodo Moeller] 7861 7862 *) Implement ssl23_peek (analogous to ssl23_read), which previously 7863 did not exist. 7864 [Bodo Moeller] 7865 7866 *) Replace rdtsc with _emit statements for VC++ version 5. 7867 [Jeremy Cooper <jeremy@baymoo.org>] 7868 7869 *) Make it possible to reuse SSLv2 sessions. 7870 [Richard Levitte] 7871 7872 *) In copy_email() check for >= 0 as a return value for 7873 X509_NAME_get_index_by_NID() since 0 is a valid index. 7874 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 7875 7876 *) Avoid coredump with unsupported or invalid public keys by checking if 7877 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 7878 PKCS7_verify() fails with non detached data. 7879 [Steve Henson] 7880 7881 *) Don't use getenv in library functions when run as setuid/setgid. 7882 New function OPENSSL_issetugid(). 7883 [Ulf Moeller] 7884 7885 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 7886 due to incorrect handling of multi-threading: 7887 7888 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 7889 7890 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 7891 7892 3. Count how many times MemCheck_off() has been called so that 7893 nested use can be treated correctly. This also avoids 7894 inband-signalling in the previous code (which relied on the 7895 assumption that thread ID 0 is impossible). 7896 [Bodo Moeller] 7897 7898 *) Add "-rand" option also to s_client and s_server. 7899 [Lutz Jaenicke] 7900 7901 *) Fix CPU detection on Irix 6.x. 7902 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 7903 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7904 7905 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 7906 was empty. 7907 [Steve Henson] 7908 [This change does not apply to 0.9.7.] 7909 7910 *) Use the cached encoding of an X509_NAME structure rather than 7911 copying it. This is apparently the reason for the libsafe "errors" 7912 but the code is actually correct. 7913 [Steve Henson] 7914 7915 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 7916 Bleichenbacher's DSA attack. 7917 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 7918 to be set and top=0 forces the highest bit to be set; top=-1 is new 7919 and leaves the highest bit random. 7920 [Ulf Moeller, Bodo Moeller] 7921 7922 *) In the NCONF_...-based implementations for CONF_... queries 7923 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 7924 a temporary CONF structure with the data component set to NULL 7925 (which gives segmentation faults in lh_retrieve). 7926 Instead, use NULL for the CONF pointer in CONF_get_string and 7927 CONF_get_number (which may use environment variables) and directly 7928 return NULL from CONF_get_section. 7929 [Bodo Moeller] 7930 7931 *) Fix potential buffer overrun for EBCDIC. 7932 [Ulf Moeller] 7933 7934 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 7935 keyUsage if basicConstraints absent for a CA. 7936 [Steve Henson] 7937 7938 *) Make SMIME_write_PKCS7() write mail header values with a format that 7939 is more generally accepted (no spaces before the semicolon), since 7940 some programs can't parse those values properly otherwise. Also make 7941 sure BIO's that break lines after each write do not create invalid 7942 headers. 7943 [Richard Levitte] 7944 7945 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 7946 macros previously used would not encode an empty SEQUENCE OF 7947 and break the signature. 7948 [Steve Henson] 7949 [This change does not apply to 0.9.7.] 7950 7951 *) Zero the premaster secret after deriving the master secret in 7952 DH ciphersuites. 7953 [Steve Henson] 7954 7955 *) Add some EVP_add_digest_alias registrations (as found in 7956 OpenSSL_add_all_digests()) to SSL_library_init() 7957 aka OpenSSL_add_ssl_algorithms(). This provides improved 7958 compatibility with peers using X.509 certificates 7959 with unconventional AlgorithmIdentifier OIDs. 7960 [Bodo Moeller] 7961 7962 *) Fix for Irix with NO_ASM. 7963 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7964 7965 *) ./config script fixes. 7966 [Ulf Moeller, Richard Levitte] 7967 7968 *) Fix 'openssl passwd -1'. 7969 [Bodo Moeller] 7970 7971 *) Change PKCS12_key_gen_asc() so it can cope with non null 7972 terminated strings whose length is passed in the passlen 7973 parameter, for example from PEM callbacks. This was done 7974 by adding an extra length parameter to asc2uni(). 7975 [Steve Henson, reported by <oddissey@samsung.co.kr>] 7976 7977 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 7978 call failed, free the DSA structure. 7979 [Bodo Moeller] 7980 7981 *) Fix to uni2asc() to cope with zero length Unicode strings. 7982 These are present in some PKCS#12 files. 7983 [Steve Henson] 7984 7985 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 7986 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 7987 when writing a 32767 byte record. 7988 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 7989 7990 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 7991 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 7992 7993 (RSA objects have a reference count access to which is protected 7994 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 7995 so they are meant to be shared between threads.) 7996 [Bodo Moeller, Geoff Thorpe; original patch submitted by 7997 "Reddie, Steven" <Steven.Reddie@ca.com>] 7998 7999 *) Fix a deadlock in CRYPTO_mem_leaks(). 8000 [Bodo Moeller] 8001 8002 *) Use better test patterns in bntest. 8003 [Ulf M��ller] 8004 8005 *) rand_win.c fix for Borland C. 8006 [Ulf M��ller] 8007 8008 *) BN_rshift bugfix for n == 0. 8009 [Bodo Moeller] 8010 8011 *) Add a 'bctest' script that checks for some known 'bc' bugs 8012 so that 'make test' does not abort just because 'bc' is broken. 8013 [Bodo Moeller] 8014 8015 *) Store verify_result within SSL_SESSION also for client side to 8016 avoid potential security hole. (Re-used sessions on the client side 8017 always resulted in verify_result==X509_V_OK, not using the original 8018 result of the server certificate verification.) 8019 [Lutz Jaenicke] 8020 8021 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 8022 SSL3_RT_APPLICATION_DATA, return 0. 8023 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 8024 [Bodo Moeller] 8025 8026 *) Fix SSL_peek: 8027 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 8028 releases, have been re-implemented by renaming the previous 8029 implementations of ssl2_read and ssl3_read to ssl2_read_internal 8030 and ssl3_read_internal, respectively, and adding 'peek' parameters 8031 to them. The new ssl[23]_{read,peek} functions are calls to 8032 ssl[23]_read_internal with the 'peek' flag set appropriately. 8033 A 'peek' parameter has also been added to ssl3_read_bytes, which 8034 does the actual work for ssl3_read_internal. 8035 [Bodo Moeller] 8036 8037 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 8038 the method-specific "init()" handler. Also clean up ex_data after 8039 calling the method-specific "finish()" handler. Previously, this was 8040 happening the other way round. 8041 [Geoff Thorpe] 8042 8043 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 8044 The previous value, 12, was not always sufficient for BN_mod_exp(). 8045 [Bodo Moeller] 8046 8047 *) Make sure that shared libraries get the internal name engine with 8048 the full version number and not just 0. This should mark the 8049 shared libraries as not backward compatible. Of course, this should 8050 be changed again when we can guarantee backward binary compatibility. 8051 [Richard Levitte] 8052 8053 *) Fix typo in get_cert_by_subject() in by_dir.c 8054 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 8055 8056 *) Rework the system to generate shared libraries: 8057 8058 - Make note of the expected extension for the shared libraries and 8059 if there is a need for symbolic links from for example libcrypto.so.0 8060 to libcrypto.so.0.9.7. There is extended info in Configure for 8061 that. 8062 8063 - Make as few rebuilds of the shared libraries as possible. 8064 8065 - Still avoid linking the OpenSSL programs with the shared libraries. 8066 8067 - When installing, install the shared libraries separately from the 8068 static ones. 8069 [Richard Levitte] 8070 8071 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 8072 8073 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 8074 and not in SSL_clear because the latter is also used by the 8075 accept/connect functions; previously, the settings made by 8076 SSL_set_read_ahead would be lost during the handshake. 8077 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 8078 8079 *) Correct util/mkdef.pl to be selective about disabled algorithms. 8080 Previously, it would create entries for disableed algorithms no 8081 matter what. 8082 [Richard Levitte] 8083 8084 *) Added several new manual pages for SSL_* function. 8085 [Lutz Jaenicke] 8086 8087 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 8088 8089 *) In ssl23_get_client_hello, generate an error message when faced 8090 with an initial SSL 3.0/TLS record that is too small to contain the 8091 first two bytes of the ClientHello message, i.e. client_version. 8092 (Note that this is a pathologic case that probably has never happened 8093 in real life.) The previous approach was to use the version number 8094 from the record header as a substitute; but our protocol choice 8095 should not depend on that one because it is not authenticated 8096 by the Finished messages. 8097 [Bodo Moeller] 8098 8099 *) More robust randomness gathering functions for Windows. 8100 [Jeffrey Altman <jaltman@columbia.edu>] 8101 8102 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 8103 not set then we don't setup the error code for issuer check errors 8104 to avoid possibly overwriting other errors which the callback does 8105 handle. If an application does set the flag then we assume it knows 8106 what it is doing and can handle the new informational codes 8107 appropriately. 8108 [Steve Henson] 8109 8110 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 8111 a general "ANY" type, as such it should be able to decode anything 8112 including tagged types. However it didn't check the class so it would 8113 wrongly interpret tagged types in the same way as their universal 8114 counterpart and unknown types were just rejected. Changed so that the 8115 tagged and unknown types are handled in the same way as a SEQUENCE: 8116 that is the encoding is stored intact. There is also a new type 8117 "V_ASN1_OTHER" which is used when the class is not universal, in this 8118 case we have no idea what the actual type is so we just lump them all 8119 together. 8120 [Steve Henson] 8121 8122 *) On VMS, stdout may very well lead to a file that is written to 8123 in a record-oriented fashion. That means that every write() will 8124 write a separate record, which will be read separately by the 8125 programs trying to read from it. This can be very confusing. 8126 8127 The solution is to put a BIO filter in the way that will buffer 8128 text until a linefeed is reached, and then write everything a 8129 line at a time, so every record written will be an actual line, 8130 not chunks of lines and not (usually doesn't happen, but I've 8131 seen it once) several lines in one record. BIO_f_linebuffer() is 8132 the answer. 8133 8134 Currently, it's a VMS-only method, because that's where it has 8135 been tested well enough. 8136 [Richard Levitte] 8137 8138 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 8139 it can return incorrect results. 8140 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 8141 but it was in 0.9.6-beta[12].) 8142 [Bodo Moeller] 8143 8144 *) Disable the check for content being present when verifying detached 8145 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 8146 include zero length content when signing messages. 8147 [Steve Henson] 8148 8149 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 8150 BIO_ctrl (for BIO pairs). 8151 [Bodo M��ller] 8152 8153 *) Add DSO method for VMS. 8154 [Richard Levitte] 8155 8156 *) Bug fix: Montgomery multiplication could produce results with the 8157 wrong sign. 8158 [Ulf M��ller] 8159 8160 *) Add RPM specification openssl.spec and modify it to build three 8161 packages. The default package contains applications, application 8162 documentation and run-time libraries. The devel package contains 8163 include files, static libraries and function documentation. The 8164 doc package contains the contents of the doc directory. The original 8165 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 8166 [Richard Levitte] 8167 8168 *) Add a large number of documentation files for many SSL routines. 8169 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 8170 8171 *) Add a configuration entry for Sony News 4. 8172 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 8173 8174 *) Don't set the two most significant bits to one when generating a 8175 random number < q in the DSA library. 8176 [Ulf M��ller] 8177 8178 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 8179 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 8180 the underlying transport is blocking) if a handshake took place. 8181 (The default behaviour is needed by applications such as s_client 8182 and s_server that use select() to determine when to use SSL_read; 8183 but for applications that know in advance when to expect data, it 8184 just makes things more complicated.) 8185 [Bodo Moeller] 8186 8187 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 8188 from EGD. 8189 [Ben Laurie] 8190 8191 *) Add a few more EBCDIC conditionals that make `req' and `x509' 8192 work better on such systems. 8193 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8194 8195 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 8196 Update PKCS12_parse() so it copies the friendlyName and the 8197 keyid to the certificates aux info. 8198 [Steve Henson] 8199 8200 *) Fix bug in PKCS7_verify() which caused an infinite loop 8201 if there was more than one signature. 8202 [Sven Uszpelkat <su@celocom.de>] 8203 8204 *) Major change in util/mkdef.pl to include extra information 8205 about each symbol, as well as presentig variables as well 8206 as functions. This change means that there's n more need 8207 to rebuild the .num files when some algorithms are excluded. 8208 [Richard Levitte] 8209 8210 *) Allow the verify time to be set by an application, 8211 rather than always using the current time. 8212 [Steve Henson] 8213 8214 *) Phase 2 verify code reorganisation. The certificate 8215 verify code now looks up an issuer certificate by a 8216 number of criteria: subject name, authority key id 8217 and key usage. It also verifies self signed certificates 8218 by the same criteria. The main comparison function is 8219 X509_check_issued() which performs these checks. 8220 8221 Lot of changes were necessary in order to support this 8222 without completely rewriting the lookup code. 8223 8224 Authority and subject key identifier are now cached. 8225 8226 The LHASH 'certs' is X509_STORE has now been replaced 8227 by a STACK_OF(X509_OBJECT). This is mainly because an 8228 LHASH can't store or retrieve multiple objects with 8229 the same hash value. 8230 8231 As a result various functions (which were all internal 8232 use only) have changed to handle the new X509_STORE 8233 structure. This will break anything that messed round 8234 with X509_STORE internally. 8235 8236 The functions X509_STORE_add_cert() now checks for an 8237 exact match, rather than just subject name. 8238 8239 The X509_STORE API doesn't directly support the retrieval 8240 of multiple certificates matching a given criteria, however 8241 this can be worked round by performing a lookup first 8242 (which will fill the cache with candidate certificates) 8243 and then examining the cache for matches. This is probably 8244 the best we can do without throwing out X509_LOOKUP 8245 entirely (maybe later...). 8246 8247 The X509_VERIFY_CTX structure has been enhanced considerably. 8248 8249 All certificate lookup operations now go via a get_issuer() 8250 callback. Although this currently uses an X509_STORE it 8251 can be replaced by custom lookups. This is a simple way 8252 to bypass the X509_STORE hackery necessary to make this 8253 work and makes it possible to use more efficient techniques 8254 in future. A very simple version which uses a simple 8255 STACK for its trusted certificate store is also provided 8256 using X509_STORE_CTX_trusted_stack(). 8257 8258 The verify_cb() and verify() callbacks now have equivalents 8259 in the X509_STORE_CTX structure. 8260 8261 X509_STORE_CTX also has a 'flags' field which can be used 8262 to customise the verify behaviour. 8263 [Steve Henson] 8264 8265 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 8266 excludes S/MIME capabilities. 8267 [Steve Henson] 8268 8269 *) When a certificate request is read in keep a copy of the 8270 original encoding of the signed data and use it when outputing 8271 again. Signatures then use the original encoding rather than 8272 a decoded, encoded version which may cause problems if the 8273 request is improperly encoded. 8274 [Steve Henson] 8275 8276 *) For consistency with other BIO_puts implementations, call 8277 buffer_write(b, ...) directly in buffer_puts instead of calling 8278 BIO_write(b, ...). 8279 8280 In BIO_puts, increment b->num_write as in BIO_write. 8281 [Peter.Sylvester@EdelWeb.fr] 8282 8283 *) Fix BN_mul_word for the case where the word is 0. (We have to use 8284 BN_zero, we may not return a BIGNUM with an array consisting of 8285 words set to zero.) 8286 [Bodo Moeller] 8287 8288 *) Avoid calling abort() from within the library when problems are 8289 detected, except if preprocessor symbols have been defined 8290 (such as REF_CHECK, BN_DEBUG etc.). 8291 [Bodo Moeller] 8292 8293 *) New openssl application 'rsautl'. This utility can be 8294 used for low level RSA operations. DER public key 8295 BIO/fp routines also added. 8296 [Steve Henson] 8297 8298 *) New Configure entry and patches for compiling on QNX 4. 8299 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 8300 8301 *) A demo state-machine implementation was sponsored by 8302 Nuron (http://www.nuron.com/) and is now available in 8303 demos/state_machine. 8304 [Ben Laurie] 8305 8306 *) New options added to the 'dgst' utility for signature 8307 generation and verification. 8308 [Steve Henson] 8309 8310 *) Unrecognized PKCS#7 content types are now handled via a 8311 catch all ASN1_TYPE structure. This allows unsupported 8312 types to be stored as a "blob" and an application can 8313 encode and decode it manually. 8314 [Steve Henson] 8315 8316 *) Fix various signed/unsigned issues to make a_strex.c 8317 compile under VC++. 8318 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 8319 8320 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 8321 length if passed a buffer. ASN1_INTEGER_to_BN failed 8322 if passed a NULL BN and its argument was negative. 8323 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 8324 8325 *) Modification to PKCS#7 encoding routines to output definite 8326 length encoding. Since currently the whole structures are in 8327 memory there's not real point in using indefinite length 8328 constructed encoding. However if OpenSSL is compiled with 8329 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 8330 [Steve Henson] 8331 8332 *) Added BIO_vprintf() and BIO_vsnprintf(). 8333 [Richard Levitte] 8334 8335 *) Added more prefixes to parse for in the the strings written 8336 through a logging bio, to cover all the levels that are available 8337 through syslog. The prefixes are now: 8338 8339 PANIC, EMERG, EMR => LOG_EMERG 8340 ALERT, ALR => LOG_ALERT 8341 CRIT, CRI => LOG_CRIT 8342 ERROR, ERR => LOG_ERR 8343 WARNING, WARN, WAR => LOG_WARNING 8344 NOTICE, NOTE, NOT => LOG_NOTICE 8345 INFO, INF => LOG_INFO 8346 DEBUG, DBG => LOG_DEBUG 8347 8348 and as before, if none of those prefixes are present at the 8349 beginning of the string, LOG_ERR is chosen. 8350 8351 On Win32, the LOG_* levels are mapped according to this: 8352 8353 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 8354 LOG_WARNING => EVENTLOG_WARNING_TYPE 8355 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 8356 8357 [Richard Levitte] 8358 8359 *) Made it possible to reconfigure with just the configuration 8360 argument "reconf" or "reconfigure". The command line arguments 8361 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 8362 and are retrieved from there when reconfiguring. 8363 [Richard Levitte] 8364 8365 *) MD4 implemented. 8366 [Assar Westerlund <assar@sics.se>, Richard Levitte] 8367 8368 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 8369 [Richard Levitte] 8370 8371 *) The obj_dat.pl script was messing up the sorting of object 8372 names. The reason was that it compared the quoted version 8373 of strings as a result "OCSP" > "OCSP Signing" because 8374 " > SPACE. Changed script to store unquoted versions of 8375 names and add quotes on output. It was also omitting some 8376 names from the lookup table if they were given a default 8377 value (that is if SN is missing it is given the same 8378 value as LN and vice versa), these are now added on the 8379 grounds that if an object has a name we should be able to 8380 look it up. Finally added warning output when duplicate 8381 short or long names are found. 8382 [Steve Henson] 8383 8384 *) Changes needed for Tandem NSK. 8385 [Scott Uroff <scott@xypro.com>] 8386 8387 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 8388 RSA_padding_check_SSLv23(), special padding was never detected 8389 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 8390 version rollback attacks was not effective. 8391 8392 In s23_clnt.c, don't use special rollback-attack detection padding 8393 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 8394 client; similarly, in s23_srvr.c, don't do the rollback check if 8395 SSL 2.0 is the only protocol enabled in the server. 8396 [Bodo Moeller] 8397 8398 *) Make it possible to get hexdumps of unprintable data with 'openssl 8399 asn1parse'. By implication, the functions ASN1_parse_dump() and 8400 BIO_dump_indent() are added. 8401 [Richard Levitte] 8402 8403 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 8404 these print out strings and name structures based on various 8405 flags including RFC2253 support and proper handling of 8406 multibyte characters. Added options to the 'x509' utility 8407 to allow the various flags to be set. 8408 [Steve Henson] 8409 8410 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 8411 Also change the functions X509_cmp_current_time() and 8412 X509_gmtime_adj() work with an ASN1_TIME structure, 8413 this will enable certificates using GeneralizedTime in validity 8414 dates to be checked. 8415 [Steve Henson] 8416 8417 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 8418 negative public key encodings) on by default, 8419 NO_NEG_PUBKEY_BUG can be set to disable it. 8420 [Steve Henson] 8421 8422 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 8423 content octets. An i2c_ASN1_OBJECT is unnecessary because 8424 the encoding can be trivially obtained from the structure. 8425 [Steve Henson] 8426 8427 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 8428 not read locks (CRYPTO_r_[un]lock). 8429 [Bodo Moeller] 8430 8431 *) A first attempt at creating official support for shared 8432 libraries through configuration. I've kept it so the 8433 default is static libraries only, and the OpenSSL programs 8434 are always statically linked for now, but there are 8435 preparations for dynamic linking in place. 8436 This has been tested on Linux and Tru64. 8437 [Richard Levitte] 8438 8439 *) Randomness polling function for Win9x, as described in: 8440 Peter Gutmann, Software Generation of Practically Strong 8441 Random Numbers. 8442 [Ulf M��ller] 8443 8444 *) Fix so PRNG is seeded in req if using an already existing 8445 DSA key. 8446 [Steve Henson] 8447 8448 *) New options to smime application. -inform and -outform 8449 allow alternative formats for the S/MIME message including 8450 PEM and DER. The -content option allows the content to be 8451 specified separately. This should allow things like Netscape 8452 form signing output easier to verify. 8453 [Steve Henson] 8454 8455 *) Fix the ASN1 encoding of tags using the 'long form'. 8456 [Steve Henson] 8457 8458 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 8459 STRING types. These convert content octets to and from the 8460 underlying type. The actual tag and length octets are 8461 already assumed to have been read in and checked. These 8462 are needed because all other string types have virtually 8463 identical handling apart from the tag. By having versions 8464 of the ASN1 functions that just operate on content octets 8465 IMPLICIT tagging can be handled properly. It also allows 8466 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 8467 and ASN1_INTEGER are identical apart from the tag. 8468 [Steve Henson] 8469 8470 *) Change the handling of OID objects as follows: 8471 8472 - New object identifiers are inserted in objects.txt, following 8473 the syntax given in objects.README. 8474 - objects.pl is used to process obj_mac.num and create a new 8475 obj_mac.h. 8476 - obj_dat.pl is used to create a new obj_dat.h, using the data in 8477 obj_mac.h. 8478 8479 This is currently kind of a hack, and the perl code in objects.pl 8480 isn't very elegant, but it works as I intended. The simplest way 8481 to check that it worked correctly is to look in obj_dat.h and 8482 check the array nid_objs and make sure the objects haven't moved 8483 around (this is important!). Additions are OK, as well as 8484 consistent name changes. 8485 [Richard Levitte] 8486 8487 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 8488 [Bodo Moeller] 8489 8490 *) Addition of the command line parameter '-rand file' to 'openssl req'. 8491 The given file adds to whatever has already been seeded into the 8492 random pool through the RANDFILE configuration file option or 8493 environment variable, or the default random state file. 8494 [Richard Levitte] 8495 8496 *) mkstack.pl now sorts each macro group into lexical order. 8497 Previously the output order depended on the order the files 8498 appeared in the directory, resulting in needless rewriting 8499 of safestack.h . 8500 [Steve Henson] 8501 8502 *) Patches to make OpenSSL compile under Win32 again. Mostly 8503 work arounds for the VC++ problem that it treats func() as 8504 func(void). Also stripped out the parts of mkdef.pl that 8505 added extra typesafe functions: these no longer exist. 8506 [Steve Henson] 8507 8508 *) Reorganisation of the stack code. The macros are now all 8509 collected in safestack.h . Each macro is defined in terms of 8510 a "stack macro" of the form SKM_<name>(type, a, b). The 8511 DEBUG_SAFESTACK is now handled in terms of function casts, 8512 this has the advantage of retaining type safety without the 8513 use of additional functions. If DEBUG_SAFESTACK is not defined 8514 then the non typesafe macros are used instead. Also modified the 8515 mkstack.pl script to handle the new form. Needs testing to see 8516 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 8517 the default if no major problems. Similar behaviour for ASN1_SET_OF 8518 and PKCS12_STACK_OF. 8519 [Steve Henson] 8520 8521 *) When some versions of IIS use the 'NET' form of private key the 8522 key derivation algorithm is different. Normally MD5(password) is 8523 used as a 128 bit RC4 key. In the modified case 8524 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 8525 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 8526 as the old Netscape_RSA functions except they have an additional 8527 'sgckey' parameter which uses the modified algorithm. Also added 8528 an -sgckey command line option to the rsa utility. Thanks to 8529 Adrian Peck <bertie@ncipher.com> for posting details of the modified 8530 algorithm to openssl-dev. 8531 [Steve Henson] 8532 8533 *) The evp_local.h macros were using 'c.##kname' which resulted in 8534 invalid expansion on some systems (SCO 5.0.5 for example). 8535 Corrected to 'c.kname'. 8536 [Phillip Porch <root@theporch.com>] 8537 8538 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 8539 a STACK of email addresses from a certificate or request, these look 8540 in the subject name and the subject alternative name extensions and 8541 omit any duplicate addresses. 8542 [Steve Henson] 8543 8544 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 8545 This makes DSA verification about 2 % faster. 8546 [Bodo Moeller] 8547 8548 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 8549 (meaning that now 2^5 values will be precomputed, which is only 4 KB 8550 plus overhead for 1024 bit moduli). 8551 This makes exponentiations about 0.5 % faster for 1024 bit 8552 exponents (as measured by "openssl speed rsa2048"). 8553 [Bodo Moeller] 8554 8555 *) Rename memory handling macros to avoid conflicts with other 8556 software: 8557 Malloc => OPENSSL_malloc 8558 Malloc_locked => OPENSSL_malloc_locked 8559 Realloc => OPENSSL_realloc 8560 Free => OPENSSL_free 8561 [Richard Levitte] 8562 8563 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 8564 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 8565 [Bodo Moeller] 8566 8567 *) CygWin32 support. 8568 [John Jarvie <jjarvie@newsguy.com>] 8569 8570 *) The type-safe stack code has been rejigged. It is now only compiled 8571 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 8572 by default all type-specific stack functions are "#define"d back to 8573 standard stack functions. This results in more streamlined output 8574 but retains the type-safety checking possibilities of the original 8575 approach. 8576 [Geoff Thorpe] 8577 8578 *) The STACK code has been cleaned up, and certain type declarations 8579 that didn't make a lot of sense have been brought in line. This has 8580 also involved a cleanup of sorts in safestack.h to more correctly 8581 map type-safe stack functions onto their plain stack counterparts. 8582 This work has also resulted in a variety of "const"ifications of 8583 lots of the code, especially "_cmp" operations which should normally 8584 be prototyped with "const" parameters anyway. 8585 [Geoff Thorpe] 8586 8587 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 8588 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 8589 (The PRNG state consists of two parts, the large pool 'state' and 'md', 8590 where all of 'md' is used each time the PRNG is used, but 'state' 8591 is used only indexed by a cyclic counter. As entropy may not be 8592 well distributed from the beginning, 'md' is important as a 8593 chaining variable. However, the output function chains only half 8594 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 8595 all of 'md', and seeding with STATE_SIZE dummy bytes will result 8596 in all of 'state' being rewritten, with the new values depending 8597 on virtually all of 'md'. This overcomes the 80 bit limitation.) 8598 [Bodo Moeller] 8599 8600 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 8601 the handshake is continued after ssl_verify_cert_chain(); 8602 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 8603 can lead to 'unexplainable' connection aborts later. 8604 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 8605 8606 *) Major EVP API cipher revision. 8607 Add hooks for extra EVP features. This allows various cipher 8608 parameters to be set in the EVP interface. Support added for variable 8609 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 8610 setting of RC2 and RC5 parameters. 8611 8612 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 8613 ciphers. 8614 8615 Remove lots of duplicated code from the EVP library. For example *every* 8616 cipher init() function handles the 'iv' in the same way according to the 8617 cipher mode. They also all do nothing if the 'key' parameter is NULL and 8618 for CFB and OFB modes they zero ctx->num. 8619 8620 New functionality allows removal of S/MIME code RC2 hack. 8621 8622 Most of the routines have the same form and so can be declared in terms 8623 of macros. 8624 8625 By shifting this to the top level EVP_CipherInit() it can be removed from 8626 all individual ciphers. If the cipher wants to handle IVs or keys 8627 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 8628 flags. 8629 8630 Change lots of functions like EVP_EncryptUpdate() to now return a 8631 value: although software versions of the algorithms cannot fail 8632 any installed hardware versions can. 8633 [Steve Henson] 8634 8635 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 8636 this option is set, tolerate broken clients that send the negotiated 8637 protocol version number instead of the requested protocol version 8638 number. 8639 [Bodo Moeller] 8640 8641 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 8642 i.e. non-zero for export ciphersuites, zero otherwise. 8643 Previous versions had this flag inverted, inconsistent with 8644 rsa_tmp_cb (..._TMP_RSA_CB). 8645 [Bodo Moeller; problem reported by Amit Chopra] 8646 8647 *) Add missing DSA library text string. Work around for some IIS 8648 key files with invalid SEQUENCE encoding. 8649 [Steve Henson] 8650 8651 *) Add a document (doc/standards.txt) that list all kinds of standards 8652 and so on that are implemented in OpenSSL. 8653 [Richard Levitte] 8654 8655 *) Enhance c_rehash script. Old version would mishandle certificates 8656 with the same subject name hash and wouldn't handle CRLs at all. 8657 Added -fingerprint option to crl utility, to support new c_rehash 8658 features. 8659 [Steve Henson] 8660 8661 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 8662 [Ulf M��ller] 8663 8664 *) Fix for SSL server purpose checking. Server checking was 8665 rejecting certificates which had extended key usage present 8666 but no ssl client purpose. 8667 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 8668 8669 *) Make PKCS#12 code work with no password. The PKCS#12 spec 8670 is a little unclear about how a blank password is handled. 8671 Since the password in encoded as a BMPString with terminating 8672 double NULL a zero length password would end up as just the 8673 double NULL. However no password at all is different and is 8674 handled differently in the PKCS#12 key generation code. NS 8675 treats a blank password as zero length. MSIE treats it as no 8676 password on export: but it will try both on import. We now do 8677 the same: PKCS12_parse() tries zero length and no password if 8678 the password is set to "" or NULL (NULL is now a valid password: 8679 it wasn't before) as does the pkcs12 application. 8680 [Steve Henson] 8681 8682 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 8683 perror when PEM_read_bio_X509_REQ fails, the error message must 8684 be obtained from the error queue. 8685 [Bodo Moeller] 8686 8687 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 8688 it in ERR_remove_state if appropriate, and change ERR_get_state 8689 accordingly to avoid race conditions (this is necessary because 8690 thread_hash is no longer constant once set). 8691 [Bodo Moeller] 8692 8693 *) Bugfix for linux-elf makefile.one. 8694 [Ulf M��ller] 8695 8696 *) RSA_get_default_method() will now cause a default 8697 RSA_METHOD to be chosen if one doesn't exist already. 8698 Previously this was only set during a call to RSA_new() 8699 or RSA_new_method(NULL) meaning it was possible for 8700 RSA_get_default_method() to return NULL. 8701 [Geoff Thorpe] 8702 8703 *) Added native name translation to the existing DSO code 8704 that will convert (if the flag to do so is set) filenames 8705 that are sufficiently small and have no path information 8706 into a canonical native form. Eg. "blah" converted to 8707 "libblah.so" or "blah.dll" etc. 8708 [Geoff Thorpe] 8709 8710 *) New function ERR_error_string_n(e, buf, len) which is like 8711 ERR_error_string(e, buf), but writes at most 'len' bytes 8712 including the 0 terminator. For ERR_error_string_n, 'buf' 8713 may not be NULL. 8714 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 8715 8716 *) CONF library reworked to become more general. A new CONF 8717 configuration file reader "class" is implemented as well as a 8718 new functions (NCONF_*, for "New CONF") to handle it. The now 8719 old CONF_* functions are still there, but are reimplemented to 8720 work in terms of the new functions. Also, a set of functions 8721 to handle the internal storage of the configuration data is 8722 provided to make it easier to write new configuration file 8723 reader "classes" (I can definitely see something reading a 8724 configuration file in XML format, for example), called _CONF_*, 8725 or "the configuration storage API"... 8726 8727 The new configuration file reading functions are: 8728 8729 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 8730 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 8731 8732 NCONF_default, NCONF_WIN32 8733 8734 NCONF_dump_fp, NCONF_dump_bio 8735 8736 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 8737 NCONF_new creates a new CONF object. This works in the same way 8738 as other interfaces in OpenSSL, like the BIO interface. 8739 NCONF_dump_* dump the internal storage of the configuration file, 8740 which is useful for debugging. All other functions take the same 8741 arguments as the old CONF_* functions wth the exception of the 8742 first that must be a `CONF *' instead of a `LHASH *'. 8743 8744 To make it easer to use the new classes with the old CONF_* functions, 8745 the function CONF_set_default_method is provided. 8746 [Richard Levitte] 8747 8748 *) Add '-tls1' option to 'openssl ciphers', which was already 8749 mentioned in the documentation but had not been implemented. 8750 (This option is not yet really useful because even the additional 8751 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 8752 [Bodo Moeller] 8753 8754 *) Initial DSO code added into libcrypto for letting OpenSSL (and 8755 OpenSSL-based applications) load shared libraries and bind to 8756 them in a portable way. 8757 [Geoff Thorpe, with contributions from Richard Levitte] 8758 8759 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 8760 8761 *) Make sure _lrotl and _lrotr are only used with MSVC. 8762 8763 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 8764 (the default implementation of RAND_status). 8765 8766 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 8767 to '-clrext' (= clear extensions), as intended and documented. 8768 [Bodo Moeller; inconsistency pointed out by Michael Attili 8769 <attili@amaxo.com>] 8770 8771 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 8772 was larger than the MD block size. 8773 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 8774 8775 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 8776 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 8777 using the passed key: if the passed key was a private key the result 8778 of X509_print(), for example, would be to print out all the private key 8779 components. 8780 [Steve Henson] 8781 8782 *) des_quad_cksum() byte order bug fix. 8783 [Ulf M��ller, using the problem description in krb4-0.9.7, where 8784 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 8785 8786 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 8787 discouraged. 8788 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 8789 8790 *) For easily testing in shell scripts whether some command 8791 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 8792 returns with exit code 0 iff no command of the given name is available. 8793 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 8794 the output goes to stdout and nothing is printed to stderr. 8795 Additional arguments are always ignored. 8796 8797 Since for each cipher there is a command of the same name, 8798 the 'no-cipher' compilation switches can be tested this way. 8799 8800 ('openssl no-XXX' is not able to detect pseudo-commands such 8801 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 8802 [Bodo Moeller] 8803 8804 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 8805 [Bodo Moeller] 8806 8807 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 8808 is set; it will be thrown away anyway because each handshake creates 8809 its own key. 8810 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 8811 to parameters -- in previous versions (since OpenSSL 0.9.3) the 8812 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 8813 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 8814 [Bodo Moeller] 8815 8816 *) New s_client option -ign_eof: EOF at stdin is ignored, and 8817 'Q' and 'R' lose their special meanings (quit/renegotiate). 8818 This is part of what -quiet does; unlike -quiet, -ign_eof 8819 does not suppress any output. 8820 [Richard Levitte] 8821 8822 *) Add compatibility options to the purpose and trust code. The 8823 purpose X509_PURPOSE_ANY is "any purpose" which automatically 8824 accepts a certificate or CA, this was the previous behaviour, 8825 with all the associated security issues. 8826 8827 X509_TRUST_COMPAT is the old trust behaviour: only and 8828 automatically trust self signed roots in certificate store. A 8829 new trust setting X509_TRUST_DEFAULT is used to specify that 8830 a purpose has no associated trust setting and it should instead 8831 use the value in the default purpose. 8832 [Steve Henson] 8833 8834 *) Fix the PKCS#8 DSA private key code so it decodes keys again 8835 and fix a memory leak. 8836 [Steve Henson] 8837 8838 *) In util/mkerr.pl (which implements 'make errors'), preserve 8839 reason strings from the previous version of the .c file, as 8840 the default to have only downcase letters (and digits) in 8841 automatically generated reasons codes is not always appropriate. 8842 [Bodo Moeller] 8843 8844 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 8845 using strerror. Previously, ERR_reason_error_string() returned 8846 library names as reason strings for SYSerr; but SYSerr is a special 8847 case where small numbers are errno values, not library numbers. 8848 [Bodo Moeller] 8849 8850 *) Add '-dsaparam' option to 'openssl dhparam' application. This 8851 converts DSA parameters into DH parameters. (When creating parameters, 8852 DSA_generate_parameters is used.) 8853 [Bodo Moeller] 8854 8855 *) Include 'length' (recommended exponent length) in C code generated 8856 by 'openssl dhparam -C'. 8857 [Bodo Moeller] 8858 8859 *) The second argument to set_label in perlasm was already being used 8860 so couldn't be used as a "file scope" flag. Moved to third argument 8861 which was free. 8862 [Steve Henson] 8863 8864 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 8865 instead of RAND_bytes for encryption IVs and salts. 8866 [Bodo Moeller] 8867 8868 *) Include RAND_status() into RAND_METHOD instead of implementing 8869 it only for md_rand.c Otherwise replacing the PRNG by calling 8870 RAND_set_rand_method would be impossible. 8871 [Bodo Moeller] 8872 8873 *) Don't let DSA_generate_key() enter an infinite loop if the random 8874 number generation fails. 8875 [Bodo Moeller] 8876 8877 *) New 'rand' application for creating pseudo-random output. 8878 [Bodo Moeller] 8879 8880 *) Added configuration support for Linux/IA64 8881 [Rolf Haberrecker <rolf@suse.de>] 8882 8883 *) Assembler module support for Mingw32. 8884 [Ulf M��ller] 8885 8886 *) Shared library support for HPUX (in shlib/). 8887 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 8888 8889 *) Shared library support for Solaris gcc. 8890 [Lutz Behnke <behnke@trustcenter.de>] 8891 8892 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 8893 8894 *) PKCS7_encrypt() was adding text MIME headers twice because they 8895 were added manually and by SMIME_crlf_copy(). 8896 [Steve Henson] 8897 8898 *) In bntest.c don't call BN_rand with zero bits argument. 8899 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 8900 8901 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 8902 case was implemented. This caused BN_div_recp() to fail occasionally. 8903 [Ulf M��ller] 8904 8905 *) Add an optional second argument to the set_label() in the perl 8906 assembly language builder. If this argument exists and is set 8907 to 1 it signals that the assembler should use a symbol whose 8908 scope is the entire file, not just the current function. This 8909 is needed with MASM which uses the format label:: for this scope. 8910 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 8911 8912 *) Change the ASN1 types so they are typedefs by default. Before 8913 almost all types were #define'd to ASN1_STRING which was causing 8914 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 8915 for example. 8916 [Steve Henson] 8917 8918 *) Change names of new functions to the new get1/get0 naming 8919 convention: After 'get1', the caller owns a reference count 8920 and has to call ..._free; 'get0' returns a pointer to some 8921 data structure without incrementing reference counters. 8922 (Some of the existing 'get' functions increment a reference 8923 counter, some don't.) 8924 Similarly, 'set1' and 'add1' functions increase reference 8925 counters or duplicate objects. 8926 [Steve Henson] 8927 8928 *) Allow for the possibility of temp RSA key generation failure: 8929 the code used to assume it always worked and crashed on failure. 8930 [Steve Henson] 8931 8932 *) Fix potential buffer overrun problem in BIO_printf(). 8933 [Ulf M��ller, using public domain code by Patrick Powell; problem 8934 pointed out by David Sacerdote <das33@cornell.edu>] 8935 8936 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 8937 RAND_egd() and RAND_status(). In the command line application, 8938 the EGD socket can be specified like a seed file using RANDFILE 8939 or -rand. 8940 [Ulf M��ller] 8941 8942 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 8943 Some CAs (e.g. Verisign) distribute certificates in this form. 8944 [Steve Henson] 8945 8946 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 8947 list to exclude them. This means that no special compilation option 8948 is needed to use anonymous DH: it just needs to be included in the 8949 cipher list. 8950 [Steve Henson] 8951 8952 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 8953 EVP_MD_type. The old functionality is available in a new macro called 8954 EVP_MD_md(). Change code that uses it and update docs. 8955 [Steve Henson] 8956 8957 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 8958 where the 'void *' argument is replaced by a function pointer argument. 8959 Previously 'void *' was abused to point to functions, which works on 8960 many platforms, but is not correct. As these functions are usually 8961 called by macros defined in OpenSSL header files, most source code 8962 should work without changes. 8963 [Richard Levitte] 8964 8965 *) <openssl/opensslconf.h> (which is created by Configure) now contains 8966 sections with information on -D... compiler switches used for 8967 compiling the library so that applications can see them. To enable 8968 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 8969 must be defined. E.g., 8970 #define OPENSSL_ALGORITHM_DEFINES 8971 #include <openssl/opensslconf.h> 8972 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 8973 [Richard Levitte, Ulf and Bodo M��ller] 8974 8975 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 8976 record layer. 8977 [Bodo Moeller] 8978 8979 *) Change the 'other' type in certificate aux info to a STACK_OF 8980 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 8981 the required ASN1 format: arbitrary types determined by an OID. 8982 [Steve Henson] 8983 8984 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 8985 argument to 'req'. This is not because the function is newer or 8986 better than others it just uses the work 'NEW' in the certificate 8987 request header lines. Some software needs this. 8988 [Steve Henson] 8989 8990 *) Reorganise password command line arguments: now passwords can be 8991 obtained from various sources. Delete the PEM_cb function and make 8992 it the default behaviour: i.e. if the callback is NULL and the 8993 usrdata argument is not NULL interpret it as a null terminated pass 8994 phrase. If usrdata and the callback are NULL then the pass phrase 8995 is prompted for as usual. 8996 [Steve Henson] 8997 8998 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 8999 the support is automatically enabled. The resulting binaries will 9000 autodetect the card and use it if present. 9001 [Ben Laurie and Compaq Inc.] 9002 9003 *) Work around for Netscape hang bug. This sends certificate request 9004 and server done in one record. Since this is perfectly legal in the 9005 SSL/TLS protocol it isn't a "bug" option and is on by default. See 9006 the bugs/SSLv3 entry for more info. 9007 [Steve Henson] 9008 9009 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 9010 [Andy Polyakov] 9011 9012 *) Add -rand argument to smime and pkcs12 applications and read/write 9013 of seed file. 9014 [Steve Henson] 9015 9016 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 9017 [Bodo Moeller] 9018 9019 *) Add command line password options to the remaining applications. 9020 [Steve Henson] 9021 9022 *) Bug fix for BN_div_recp() for numerators with an even number of 9023 bits. 9024 [Ulf M��ller] 9025 9026 *) More tests in bntest.c, and changed test_bn output. 9027 [Ulf M��ller] 9028 9029 *) ./config recognizes MacOS X now. 9030 [Andy Polyakov] 9031 9032 *) Bug fix for BN_div() when the first words of num and divsor are 9033 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 9034 [Ulf M��ller] 9035 9036 *) Add support for various broken PKCS#8 formats, and command line 9037 options to produce them. 9038 [Steve Henson] 9039 9040 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 9041 get temporary BIGNUMs from a BN_CTX. 9042 [Ulf M��ller] 9043 9044 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 9045 for p == 0. 9046 [Ulf M��ller] 9047 9048 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 9049 include a #define from the old name to the new. The original intent 9050 was that statically linked binaries could for example just call 9051 SSLeay_add_all_ciphers() to just add ciphers to the table and not 9052 link with digests. This never worked becayse SSLeay_add_all_digests() 9053 and SSLeay_add_all_ciphers() were in the same source file so calling 9054 one would link with the other. They are now in separate source files. 9055 [Steve Henson] 9056 9057 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 9058 [Steve Henson] 9059 9060 *) Use a less unusual form of the Miller-Rabin primality test (it used 9061 a binary algorithm for exponentiation integrated into the Miller-Rabin 9062 loop, our standard modexp algorithms are faster). 9063 [Bodo Moeller] 9064 9065 *) Support for the EBCDIC character set completed. 9066 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 9067 9068 *) Source code cleanups: use const where appropriate, eliminate casts, 9069 use void * instead of char * in lhash. 9070 [Ulf M��ller] 9071 9072 *) Bugfix: ssl3_send_server_key_exchange was not restartable 9073 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 9074 this the server could overwrite ephemeral keys that the client 9075 has already seen). 9076 [Bodo Moeller] 9077 9078 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 9079 using 50 iterations of the Rabin-Miller test. 9080 9081 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 9082 iterations of the Rabin-Miller test as required by the appendix 9083 to FIPS PUB 186[-1]) instead of DSA_is_prime. 9084 As BN_is_prime_fasttest includes trial division, DSA parameter 9085 generation becomes much faster. 9086 9087 This implies a change for the callback functions in DSA_is_prime 9088 and DSA_generate_parameters: The callback function is called once 9089 for each positive witness in the Rabin-Miller test, not just 9090 occasionally in the inner loop; and the parameters to the 9091 callback function now provide an iteration count for the outer 9092 loop rather than for the current invocation of the inner loop. 9093 DSA_generate_parameters additionally can call the callback 9094 function with an 'iteration count' of -1, meaning that a 9095 candidate has passed the trial division test (when q is generated 9096 from an application-provided seed, trial division is skipped). 9097 [Bodo Moeller] 9098 9099 *) New function BN_is_prime_fasttest that optionally does trial 9100 division before starting the Rabin-Miller test and has 9101 an additional BN_CTX * argument (whereas BN_is_prime always 9102 has to allocate at least one BN_CTX). 9103 'callback(1, -1, cb_arg)' is called when a number has passed the 9104 trial division stage. 9105 [Bodo Moeller] 9106 9107 *) Fix for bug in CRL encoding. The validity dates weren't being handled 9108 as ASN1_TIME. 9109 [Steve Henson] 9110 9111 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 9112 [Steve Henson] 9113 9114 *) New function BN_pseudo_rand(). 9115 [Ulf M��ller] 9116 9117 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 9118 bignum version of BN_from_montgomery() with the working code from 9119 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 9120 the comments. 9121 [Ulf M��ller] 9122 9123 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 9124 made it impossible to use the same SSL_SESSION data structure in 9125 SSL2 clients in multiple threads. 9126 [Bodo Moeller] 9127 9128 *) The return value of RAND_load_file() no longer counts bytes obtained 9129 by stat(). RAND_load_file(..., -1) is new and uses the complete file 9130 to seed the PRNG (previously an explicit byte count was required). 9131 [Ulf M��ller, Bodo M��ller] 9132 9133 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 9134 used (char *) instead of (void *) and had casts all over the place. 9135 [Steve Henson] 9136 9137 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 9138 [Ulf M��ller] 9139 9140 *) Retain source code compatibility for BN_prime_checks macro: 9141 BN_is_prime(..., BN_prime_checks, ...) now uses 9142 BN_prime_checks_for_size to determine the appropriate number of 9143 Rabin-Miller iterations. 9144 [Ulf M��ller] 9145 9146 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 9147 DH_CHECK_P_NOT_SAFE_PRIME. 9148 (Check if this is true? OpenPGP calls them "strong".) 9149 [Ulf M��ller] 9150 9151 *) Merge the functionality of "dh" and "gendh" programs into a new program 9152 "dhparam". The old programs are retained for now but will handle DH keys 9153 (instead of parameters) in future. 9154 [Steve Henson] 9155 9156 *) Make the ciphers, s_server and s_client programs check the return values 9157 when a new cipher list is set. 9158 [Steve Henson] 9159 9160 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 9161 ciphers. Before when the 56bit ciphers were enabled the sorting was 9162 wrong. 9163 9164 The syntax for the cipher sorting has been extended to support sorting by 9165 cipher-strength (using the strength_bits hard coded in the tables). 9166 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 9167 9168 Fix a bug in the cipher-command parser: when supplying a cipher command 9169 string with an "undefined" symbol (neither command nor alphanumeric 9170 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 9171 an error is flagged. 9172 9173 Due to the strength-sorting extension, the code of the 9174 ssl_create_cipher_list() function was completely rearranged. I hope that 9175 the readability was also increased :-) 9176 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 9177 9178 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 9179 for the first serial number and places 2 in the serial number file. This 9180 avoids problems when the root CA is created with serial number zero and 9181 the first user certificate has the same issuer name and serial number 9182 as the root CA. 9183 [Steve Henson] 9184 9185 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 9186 the new code. Add documentation for this stuff. 9187 [Steve Henson] 9188 9189 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 9190 X509_*() to X509at_*() on the grounds that they don't handle X509 9191 structures and behave in an analagous way to the X509v3 functions: 9192 they shouldn't be called directly but wrapper functions should be used 9193 instead. 9194 9195 So we also now have some wrapper functions that call the X509at functions 9196 when passed certificate requests. (TO DO: similar things can be done with 9197 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 9198 things. Some of these need some d2i or i2d and print functionality 9199 because they handle more complex structures.) 9200 [Steve Henson] 9201 9202 *) Add missing #ifndefs that caused missing symbols when building libssl 9203 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 9204 NO_RSA in ssl/s2*.c. 9205 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M��ller] 9206 9207 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 9208 has a return value which indicates the quality of the random data 9209 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 9210 error queue. New function RAND_pseudo_bytes() generates output that is 9211 guaranteed to be unique but not unpredictable. RAND_add is like 9212 RAND_seed, but takes an extra argument for an entropy estimate 9213 (RAND_seed always assumes full entropy). 9214 [Ulf M��ller] 9215 9216 *) Do more iterations of Rabin-Miller probable prime test (specifically, 9217 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 9218 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 9219 in crypto/bn/bn_prime.c for the complete table). This guarantees a 9220 false-positive rate of at most 2^-80 for random input. 9221 [Bodo Moeller] 9222 9223 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 9224 [Bodo Moeller] 9225 9226 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 9227 in the 0.9.5 release), this returns the chain 9228 from an X509_CTX structure with a dup of the stack and all 9229 the X509 reference counts upped: so the stack will exist 9230 after X509_CTX_cleanup() has been called. Modify pkcs12.c 9231 to use this. 9232 9233 Also make SSL_SESSION_print() print out the verify return 9234 code. 9235 [Steve Henson] 9236 9237 *) Add manpage for the pkcs12 command. Also change the default 9238 behaviour so MAC iteration counts are used unless the new 9239 -nomaciter option is used. This improves file security and 9240 only older versions of MSIE (4.0 for example) need it. 9241 [Steve Henson] 9242 9243 *) Honor the no-xxx Configure options when creating .DEF files. 9244 [Ulf M��ller] 9245 9246 *) Add PKCS#10 attributes to field table: challengePassword, 9247 unstructuredName and unstructuredAddress. These are taken from 9248 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 9249 international characters are used. 9250 9251 More changes to X509_ATTRIBUTE code: allow the setting of types 9252 based on strings. Remove the 'loc' parameter when adding 9253 attributes because these will be a SET OF encoding which is sorted 9254 in ASN1 order. 9255 [Steve Henson] 9256 9257 *) Initial changes to the 'req' utility to allow request generation 9258 automation. This will allow an application to just generate a template 9259 file containing all the field values and have req construct the 9260 request. 9261 9262 Initial support for X509_ATTRIBUTE handling. Stacks of these are 9263 used all over the place including certificate requests and PKCS#7 9264 structures. They are currently handled manually where necessary with 9265 some primitive wrappers for PKCS#7. The new functions behave in a 9266 manner analogous to the X509 extension functions: they allow 9267 attributes to be looked up by NID and added. 9268 9269 Later something similar to the X509V3 code would be desirable to 9270 automatically handle the encoding, decoding and printing of the 9271 more complex types. The string types like challengePassword can 9272 be handled by the string table functions. 9273 9274 Also modified the multi byte string table handling. Now there is 9275 a 'global mask' which masks out certain types. The table itself 9276 can use the flag STABLE_NO_MASK to ignore the mask setting: this 9277 is useful when for example there is only one permissible type 9278 (as in countryName) and using the mask might result in no valid 9279 types at all. 9280 [Steve Henson] 9281 9282 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 9283 SSL_get_peer_finished to allow applications to obtain the latest 9284 Finished messages sent to the peer or expected from the peer, 9285 respectively. (SSL_get_peer_finished is usually the Finished message 9286 actually received from the peer, otherwise the protocol will be aborted.) 9287 9288 As the Finished message are message digests of the complete handshake 9289 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 9290 be used for external authentication procedures when the authentication 9291 provided by SSL/TLS is not desired or is not enough. 9292 [Bodo Moeller] 9293 9294 *) Enhanced support for Alpha Linux is added. Now ./config checks if 9295 the host supports BWX extension and if Compaq C is present on the 9296 $PATH. Just exploiting of the BWX extension results in 20-30% 9297 performance kick for some algorithms, e.g. DES and RC4 to mention 9298 a couple. Compaq C in turn generates ~20% faster code for MD5 and 9299 SHA1. 9300 [Andy Polyakov] 9301 9302 *) Add support for MS "fast SGC". This is arguably a violation of the 9303 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 9304 weak crypto and after checking the certificate is SGC a second one 9305 with strong crypto. MS SGC stops the first handshake after receiving 9306 the server certificate message and sends a second client hello. Since 9307 a server will typically do all the time consuming operations before 9308 expecting any further messages from the client (server key exchange 9309 is the most expensive) there is little difference between the two. 9310 9311 To get OpenSSL to support MS SGC we have to permit a second client 9312 hello message after we have sent server done. In addition we have to 9313 reset the MAC if we do get this second client hello. 9314 [Steve Henson] 9315 9316 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 9317 if a DER encoded private key is RSA or DSA traditional format. Changed 9318 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 9319 format DER encoded private key. Newer code should use PKCS#8 format which 9320 has the key type encoded in the ASN1 structure. Added DER private key 9321 support to pkcs8 application. 9322 [Steve Henson] 9323 9324 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 9325 ciphersuites has been selected (as required by the SSL 3/TLS 1 9326 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 9327 is set, we interpret this as a request to violate the specification 9328 (the worst that can happen is a handshake failure, and 'correct' 9329 behaviour would result in a handshake failure anyway). 9330 [Bodo Moeller] 9331 9332 *) In SSL_CTX_add_session, take into account that there might be multiple 9333 SSL_SESSION structures with the same session ID (e.g. when two threads 9334 concurrently obtain them from an external cache). 9335 The internal cache can handle only one SSL_SESSION with a given ID, 9336 so if there's a conflict, we now throw out the old one to achieve 9337 consistency. 9338 [Bodo Moeller] 9339 9340 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 9341 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 9342 some routines that use cipher OIDs: some ciphers do not have OIDs 9343 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 9344 example. 9345 [Steve Henson] 9346 9347 *) Simplify the trust setting structure and code. Now we just have 9348 two sequences of OIDs for trusted and rejected settings. These will 9349 typically have values the same as the extended key usage extension 9350 and any application specific purposes. 9351 9352 The trust checking code now has a default behaviour: it will just 9353 check for an object with the same NID as the passed id. Functions can 9354 be provided to override either the default behaviour or the behaviour 9355 for a given id. SSL client, server and email already have functions 9356 in place for compatibility: they check the NID and also return "trusted" 9357 if the certificate is self signed. 9358 [Steve Henson] 9359 9360 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 9361 traditional format into an EVP_PKEY structure. 9362 [Steve Henson] 9363 9364 *) Add a password callback function PEM_cb() which either prompts for 9365 a password if usr_data is NULL or otherwise assumes it is a null 9366 terminated password. Allow passwords to be passed on command line 9367 environment or config files in a few more utilities. 9368 [Steve Henson] 9369 9370 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 9371 keys. Add some short names for PKCS#8 PBE algorithms and allow them 9372 to be specified on the command line for the pkcs8 and pkcs12 utilities. 9373 Update documentation. 9374 [Steve Henson] 9375 9376 *) Support for ASN1 "NULL" type. This could be handled before by using 9377 ASN1_TYPE but there wasn't any function that would try to read a NULL 9378 and produce an error if it couldn't. For compatibility we also have 9379 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 9380 don't allocate anything because they don't need to. 9381 [Steve Henson] 9382 9383 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 9384 for details. 9385 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 9386 9387 *) Rebuild of the memory allocation routines used by OpenSSL code and 9388 possibly others as well. The purpose is to make an interface that 9389 provide hooks so anyone can build a separate set of allocation and 9390 deallocation routines to be used by OpenSSL, for example memory 9391 pool implementations, or something else, which was previously hard 9392 since Malloc(), Realloc() and Free() were defined as macros having 9393 the values malloc, realloc and free, respectively (except for Win32 9394 compilations). The same is provided for memory debugging code. 9395 OpenSSL already comes with functionality to find memory leaks, but 9396 this gives people a chance to debug other memory problems. 9397 9398 With these changes, a new set of functions and macros have appeared: 9399 9400 CRYPTO_set_mem_debug_functions() [F] 9401 CRYPTO_get_mem_debug_functions() [F] 9402 CRYPTO_dbg_set_options() [F] 9403 CRYPTO_dbg_get_options() [F] 9404 CRYPTO_malloc_debug_init() [M] 9405 9406 The memory debug functions are NULL by default, unless the library 9407 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 9408 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 9409 gives the standard debugging functions that come with OpenSSL) or 9410 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 9411 provided by the library user) must be used. When the standard 9412 debugging functions are used, CRYPTO_dbg_set_options can be used to 9413 request additional information: 9414 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 9415 the CRYPTO_MDEBUG_xxx macro when compiling the library. 9416 9417 Also, things like CRYPTO_set_mem_functions will always give the 9418 expected result (the new set of functions is used for allocation 9419 and deallocation) at all times, regardless of platform and compiler 9420 options. 9421 9422 To finish it up, some functions that were never use in any other 9423 way than through macros have a new API and new semantic: 9424 9425 CRYPTO_dbg_malloc() 9426 CRYPTO_dbg_realloc() 9427 CRYPTO_dbg_free() 9428 9429 All macros of value have retained their old syntax. 9430 [Richard Levitte and Bodo Moeller] 9431 9432 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 9433 ordering of SMIMECapabilities wasn't in "strength order" and there 9434 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 9435 algorithm. 9436 [Steve Henson] 9437 9438 *) Some ASN1 types with illegal zero length encoding (INTEGER, 9439 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 9440 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 9441 9442 *) Merge in my S/MIME library for OpenSSL. This provides a simple 9443 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 9444 functionality to handle multipart/signed properly) and a utility 9445 called 'smime' to call all this stuff. This is based on code I 9446 originally wrote for Celo who have kindly allowed it to be 9447 included in OpenSSL. 9448 [Steve Henson] 9449 9450 *) Add variants des_set_key_checked and des_set_key_unchecked of 9451 des_set_key (aka des_key_sched). Global variable des_check_key 9452 decides which of these is called by des_set_key; this way 9453 des_check_key behaves as it always did, but applications and 9454 the library itself, which was buggy for des_check_key == 1, 9455 have a cleaner way to pick the version they need. 9456 [Bodo Moeller] 9457 9458 *) New function PKCS12_newpass() which changes the password of a 9459 PKCS12 structure. 9460 [Steve Henson] 9461 9462 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 9463 dynamic mix. In both cases the ids can be used as an index into the 9464 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 9465 functions so they accept a list of the field values and the 9466 application doesn't need to directly manipulate the X509_TRUST 9467 structure. 9468 [Steve Henson] 9469 9470 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 9471 need initialising. 9472 [Steve Henson] 9473 9474 *) Modify the way the V3 extension code looks up extensions. This now 9475 works in a similar way to the object code: we have some "standard" 9476 extensions in a static table which is searched with OBJ_bsearch() 9477 and the application can add dynamic ones if needed. The file 9478 crypto/x509v3/ext_dat.h now has the info: this file needs to be 9479 updated whenever a new extension is added to the core code and kept 9480 in ext_nid order. There is a simple program 'tabtest.c' which checks 9481 this. New extensions are not added too often so this file can readily 9482 be maintained manually. 9483 9484 There are two big advantages in doing things this way. The extensions 9485 can be looked up immediately and no longer need to be "added" using 9486 X509V3_add_standard_extensions(): this function now does nothing. 9487 [Side note: I get *lots* of email saying the extension code doesn't 9488 work because people forget to call this function] 9489 Also no dynamic allocation is done unless new extensions are added: 9490 so if we don't add custom extensions there is no need to call 9491 X509V3_EXT_cleanup(). 9492 [Steve Henson] 9493 9494 *) Modify enc utility's salting as follows: make salting the default. Add a 9495 magic header, so unsalted files fail gracefully instead of just decrypting 9496 to garbage. This is because not salting is a big security hole, so people 9497 should be discouraged from doing it. 9498 [Ben Laurie] 9499 9500 *) Fixes and enhancements to the 'x509' utility. It allowed a message 9501 digest to be passed on the command line but it only used this 9502 parameter when signing a certificate. Modified so all relevant 9503 operations are affected by the digest parameter including the 9504 -fingerprint and -x509toreq options. Also -x509toreq choked if a 9505 DSA key was used because it didn't fix the digest. 9506 [Steve Henson] 9507 9508 *) Initial certificate chain verify code. Currently tests the untrusted 9509 certificates for consistency with the verify purpose (which is set 9510 when the X509_STORE_CTX structure is set up) and checks the pathlength. 9511 9512 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 9513 this is because it will reject chains with invalid extensions whereas 9514 every previous version of OpenSSL and SSLeay made no checks at all. 9515 9516 Trust code: checks the root CA for the relevant trust settings. Trust 9517 settings have an initial value consistent with the verify purpose: e.g. 9518 if the verify purpose is for SSL client use it expects the CA to be 9519 trusted for SSL client use. However the default value can be changed to 9520 permit custom trust settings: one example of this would be to only trust 9521 certificates from a specific "secure" set of CAs. 9522 9523 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 9524 which should be used for version portability: especially since the 9525 verify structure is likely to change more often now. 9526 9527 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 9528 to set them. If not set then assume SSL clients will verify SSL servers 9529 and vice versa. 9530 9531 Two new options to the verify program: -untrusted allows a set of 9532 untrusted certificates to be passed in and -purpose which sets the 9533 intended purpose of the certificate. If a purpose is set then the 9534 new chain verify code is used to check extension consistency. 9535 [Steve Henson] 9536 9537 *) Support for the authority information access extension. 9538 [Steve Henson] 9539 9540 *) Modify RSA and DSA PEM read routines to transparently handle 9541 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 9542 public keys in a format compatible with certificate 9543 SubjectPublicKeyInfo structures. Unfortunately there were already 9544 functions called *_PublicKey_* which used various odd formats so 9545 these are retained for compatibility: however the DSA variants were 9546 never in a public release so they have been deleted. Changed dsa/rsa 9547 utilities to handle the new format: note no releases ever handled public 9548 keys so we should be OK. 9549 9550 The primary motivation for this change is to avoid the same fiasco 9551 that dogs private keys: there are several incompatible private key 9552 formats some of which are standard and some OpenSSL specific and 9553 require various evil hacks to allow partial transparent handling and 9554 even then it doesn't work with DER formats. Given the option anything 9555 other than PKCS#8 should be dumped: but the other formats have to 9556 stay in the name of compatibility. 9557 9558 With public keys and the benefit of hindsight one standard format 9559 is used which works with EVP_PKEY, RSA or DSA structures: though 9560 it clearly returns an error if you try to read the wrong kind of key. 9561 9562 Added a -pubkey option to the 'x509' utility to output the public key. 9563 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 9564 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 9565 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 9566 that do the same as the EVP_PKEY_assign_*() except they up the 9567 reference count of the added key (they don't "swallow" the 9568 supplied key). 9569 [Steve Henson] 9570 9571 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 9572 CRLs would fail if the file contained no certificates or no CRLs: 9573 added a new function to read in both types and return the number 9574 read: this means that if none are read it will be an error. The 9575 DER versions of the certificate and CRL reader would always fail 9576 because it isn't possible to mix certificates and CRLs in DER format 9577 without choking one or the other routine. Changed this to just read 9578 a certificate: this is the best we can do. Also modified the code 9579 in apps/verify.c to take notice of return codes: it was previously 9580 attempting to read in certificates from NULL pointers and ignoring 9581 any errors: this is one reason why the cert and CRL reader seemed 9582 to work. It doesn't check return codes from the default certificate 9583 routines: these may well fail if the certificates aren't installed. 9584 [Steve Henson] 9585 9586 *) Code to support otherName option in GeneralName. 9587 [Steve Henson] 9588 9589 *) First update to verify code. Change the verify utility 9590 so it warns if it is passed a self signed certificate: 9591 for consistency with the normal behaviour. X509_verify 9592 has been modified to it will now verify a self signed 9593 certificate if *exactly* the same certificate appears 9594 in the store: it was previously impossible to trust a 9595 single self signed certificate. This means that: 9596 openssl verify ss.pem 9597 now gives a warning about a self signed certificate but 9598 openssl verify -CAfile ss.pem ss.pem 9599 is OK. 9600 [Steve Henson] 9601 9602 *) For servers, store verify_result in SSL_SESSION data structure 9603 (and add it to external session representation). 9604 This is needed when client certificate verifications fails, 9605 but an application-provided verification callback (set by 9606 SSL_CTX_set_cert_verify_callback) allows accepting the session 9607 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 9608 but returns 1): When the session is reused, we have to set 9609 ssl->verify_result to the appropriate error code to avoid 9610 security holes. 9611 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 9612 9613 *) Fix a bug in the new PKCS#7 code: it didn't consider the 9614 case in PKCS7_dataInit() where the signed PKCS7 structure 9615 didn't contain any existing data because it was being created. 9616 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 9617 9618 *) Add a salt to the key derivation routines in enc.c. This 9619 forms the first 8 bytes of the encrypted file. Also add a 9620 -S option to allow a salt to be input on the command line. 9621 [Steve Henson] 9622 9623 *) New function X509_cmp(). Oddly enough there wasn't a function 9624 to compare two certificates. We do this by working out the SHA1 9625 hash and comparing that. X509_cmp() will be needed by the trust 9626 code. 9627 [Steve Henson] 9628 9629 *) SSL_get1_session() is like SSL_get_session(), but increments 9630 the reference count in the SSL_SESSION returned. 9631 [Geoff Thorpe <geoff@eu.c2.net>] 9632 9633 *) Fix for 'req': it was adding a null to request attributes. 9634 Also change the X509_LOOKUP and X509_INFO code to handle 9635 certificate auxiliary information. 9636 [Steve Henson] 9637 9638 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 9639 the 'enc' command. 9640 [Steve Henson] 9641 9642 *) Add the possibility to add extra information to the memory leak 9643 detecting output, to form tracebacks, showing from where each 9644 allocation was originated: CRYPTO_push_info("constant string") adds 9645 the string plus current file name and line number to a per-thread 9646 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 9647 is like calling CYRPTO_pop_info() until the stack is empty. 9648 Also updated memory leak detection code to be multi-thread-safe. 9649 [Richard Levitte] 9650 9651 *) Add options -text and -noout to pkcs7 utility and delete the 9652 encryption options which never did anything. Update docs. 9653 [Steve Henson] 9654 9655 *) Add options to some of the utilities to allow the pass phrase 9656 to be included on either the command line (not recommended on 9657 OSes like Unix) or read from the environment. Update the 9658 manpages and fix a few bugs. 9659 [Steve Henson] 9660 9661 *) Add a few manpages for some of the openssl commands. 9662 [Steve Henson] 9663 9664 *) Fix the -revoke option in ca. It was freeing up memory twice, 9665 leaking and not finding already revoked certificates. 9666 [Steve Henson] 9667 9668 *) Extensive changes to support certificate auxiliary information. 9669 This involves the use of X509_CERT_AUX structure and X509_AUX 9670 functions. An X509_AUX function such as PEM_read_X509_AUX() 9671 can still read in a certificate file in the usual way but it 9672 will also read in any additional "auxiliary information". By 9673 doing things this way a fair degree of compatibility can be 9674 retained: existing certificates can have this information added 9675 using the new 'x509' options. 9676 9677 Current auxiliary information includes an "alias" and some trust 9678 settings. The trust settings will ultimately be used in enhanced 9679 certificate chain verification routines: currently a certificate 9680 can only be trusted if it is self signed and then it is trusted 9681 for all purposes. 9682 [Steve Henson] 9683 9684 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 9685 The problem was that one of the replacement routines had not been working 9686 since SSLeay releases. For now the offending routine has been replaced 9687 with non-optimised assembler. Even so, this now gives around 95% 9688 performance improvement for 1024 bit RSA signs. 9689 [Mark Cox] 9690 9691 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 9692 handling. Most clients have the effective key size in bits equal to 9693 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 9694 A few however don't do this and instead use the size of the decrypted key 9695 to determine the RC2 key length and the AlgorithmIdentifier to determine 9696 the effective key length. In this case the effective key length can still 9697 be 40 bits but the key length can be 168 bits for example. This is fixed 9698 by manually forcing an RC2 key into the EVP_PKEY structure because the 9699 EVP code can't currently handle unusual RC2 key sizes: it always assumes 9700 the key length and effective key length are equal. 9701 [Steve Henson] 9702 9703 *) Add a bunch of functions that should simplify the creation of 9704 X509_NAME structures. Now you should be able to do: 9705 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 9706 and have it automatically work out the correct field type and fill in 9707 the structures. The more adventurous can try: 9708 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 9709 and it will (hopefully) work out the correct multibyte encoding. 9710 [Steve Henson] 9711 9712 *) Change the 'req' utility to use the new field handling and multibyte 9713 copy routines. Before the DN field creation was handled in an ad hoc 9714 way in req, ca, and x509 which was rather broken and didn't support 9715 BMPStrings or UTF8Strings. Since some software doesn't implement 9716 BMPStrings or UTF8Strings yet, they can be enabled using the config file 9717 using the dirstring_type option. See the new comment in the default 9718 openssl.cnf for more info. 9719 [Steve Henson] 9720 9721 *) Make crypto/rand/md_rand.c more robust: 9722 - Assure unique random numbers after fork(). 9723 - Make sure that concurrent threads access the global counter and 9724 md serializably so that we never lose entropy in them 9725 or use exactly the same state in multiple threads. 9726 Access to the large state is not always serializable because 9727 the additional locking could be a performance killer, and 9728 md should be large enough anyway. 9729 [Bodo Moeller] 9730 9731 *) New file apps/app_rand.c with commonly needed functionality 9732 for handling the random seed file. 9733 9734 Use the random seed file in some applications that previously did not: 9735 ca, 9736 dsaparam -genkey (which also ignored its '-rand' option), 9737 s_client, 9738 s_server, 9739 x509 (when signing). 9740 Except on systems with /dev/urandom, it is crucial to have a random 9741 seed file at least for key creation, DSA signing, and for DH exchanges; 9742 for RSA signatures we could do without one. 9743 9744 gendh and gendsa (unlike genrsa) used to read only the first byte 9745 of each file listed in the '-rand' option. The function as previously 9746 found in genrsa is now in app_rand.c and is used by all programs 9747 that support '-rand'. 9748 [Bodo Moeller] 9749 9750 *) In RAND_write_file, use mode 0600 for creating files; 9751 don't just chmod when it may be too late. 9752 [Bodo Moeller] 9753 9754 *) Report an error from X509_STORE_load_locations 9755 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 9756 [Bill Perry] 9757 9758 *) New function ASN1_mbstring_copy() this copies a string in either 9759 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 9760 into an ASN1_STRING type. A mask of permissible types is passed 9761 and it chooses the "minimal" type to use or an error if not type 9762 is suitable. 9763 [Steve Henson] 9764 9765 *) Add function equivalents to the various macros in asn1.h. The old 9766 macros are retained with an M_ prefix. Code inside the library can 9767 use the M_ macros. External code (including the openssl utility) 9768 should *NOT* in order to be "shared library friendly". 9769 [Steve Henson] 9770 9771 *) Add various functions that can check a certificate's extensions 9772 to see if it usable for various purposes such as SSL client, 9773 server or S/MIME and CAs of these types. This is currently 9774 VERY EXPERIMENTAL but will ultimately be used for certificate chain 9775 verification. Also added a -purpose flag to x509 utility to 9776 print out all the purposes. 9777 [Steve Henson] 9778 9779 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 9780 functions. 9781 [Steve Henson] 9782 9783 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 9784 for, obtain and decode and extension and obtain its critical flag. 9785 This allows all the necessary extension code to be handled in a 9786 single function call. 9787 [Steve Henson] 9788 9789 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 9790 platforms. See crypto/rc4/rc4_enc.c for further details. 9791 [Andy Polyakov] 9792 9793 *) New -noout option to asn1parse. This causes no output to be produced 9794 its main use is when combined with -strparse and -out to extract data 9795 from a file (which may not be in ASN.1 format). 9796 [Steve Henson] 9797 9798 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 9799 when producing the local key id. 9800 [Richard Levitte <levitte@stacken.kth.se>] 9801 9802 *) New option -dhparam in s_server. This allows a DH parameter file to be 9803 stated explicitly. If it is not stated then it tries the first server 9804 certificate file. The previous behaviour hard coded the filename 9805 "server.pem". 9806 [Steve Henson] 9807 9808 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 9809 a public key to be input or output. For example: 9810 openssl rsa -in key.pem -pubout -out pubkey.pem 9811 Also added necessary DSA public key functions to handle this. 9812 [Steve Henson] 9813 9814 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 9815 in the message. This was handled by allowing 9816 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 9817 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 9818 9819 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 9820 to the end of the strings whereas this didn't. This would cause problems 9821 if strings read with d2i_ASN1_bytes() were later modified. 9822 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 9823 9824 *) Fix for base64 decode bug. When a base64 bio reads only one line of 9825 data and it contains EOF it will end up returning an error. This is 9826 caused by input 46 bytes long. The cause is due to the way base64 9827 BIOs find the start of base64 encoded data. They do this by trying a 9828 trial decode on each line until they find one that works. When they 9829 do a flag is set and it starts again knowing it can pass all the 9830 data directly through the decoder. Unfortunately it doesn't reset 9831 the context it uses. This means that if EOF is reached an attempt 9832 is made to pass two EOFs through the context and this causes the 9833 resulting error. This can also cause other problems as well. As is 9834 usual with these problems it takes *ages* to find and the fix is 9835 trivial: move one line. 9836 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 9837 9838 *) Ugly workaround to get s_client and s_server working under Windows. The 9839 old code wouldn't work because it needed to select() on sockets and the 9840 tty (for keypresses and to see if data could be written). Win32 only 9841 supports select() on sockets so we select() with a 1s timeout on the 9842 sockets and then see if any characters are waiting to be read, if none 9843 are present then we retry, we also assume we can always write data to 9844 the tty. This isn't nice because the code then blocks until we've 9845 received a complete line of data and it is effectively polling the 9846 keyboard at 1s intervals: however it's quite a bit better than not 9847 working at all :-) A dedicated Windows application might handle this 9848 with an event loop for example. 9849 [Steve Henson] 9850 9851 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 9852 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 9853 will be called when RSA_sign() and RSA_verify() are used. This is useful 9854 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 9855 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 9856 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 9857 This necessitated the support of an extra signature type NID_md5_sha1 9858 for SSL signatures and modifications to the SSL library to use it instead 9859 of calling RSA_public_decrypt() and RSA_private_encrypt(). 9860 [Steve Henson] 9861 9862 *) Add new -verify -CAfile and -CApath options to the crl program, these 9863 will lookup a CRL issuers certificate and verify the signature in a 9864 similar way to the verify program. Tidy up the crl program so it 9865 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 9866 less strict. It will now permit CRL extensions even if it is not 9867 a V2 CRL: this will allow it to tolerate some broken CRLs. 9868 [Steve Henson] 9869 9870 *) Initialize all non-automatic variables each time one of the openssl 9871 sub-programs is started (this is necessary as they may be started 9872 multiple times from the "OpenSSL>" prompt). 9873 [Lennart Bang, Bodo Moeller] 9874 9875 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 9876 removing all other RSA functionality (this is what NO_RSA does). This 9877 is so (for example) those in the US can disable those operations covered 9878 by the RSA patent while allowing storage and parsing of RSA keys and RSA 9879 key generation. 9880 [Steve Henson] 9881 9882 *) Non-copying interface to BIO pairs. 9883 (still largely untested) 9884 [Bodo Moeller] 9885 9886 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 9887 ASCII string. This was handled independently in various places before. 9888 [Steve Henson] 9889 9890 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 9891 UTF8 strings a character at a time. 9892 [Steve Henson] 9893 9894 *) Use client_version from client hello to select the protocol 9895 (s23_srvr.c) and for RSA client key exchange verification 9896 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 9897 [Bodo Moeller] 9898 9899 *) Add various utility functions to handle SPKACs, these were previously 9900 handled by poking round in the structure internals. Added new function 9901 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 9902 print, verify and generate SPKACs. Based on an original idea from 9903 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 9904 [Steve Henson] 9905 9906 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 9907 [Andy Polyakov] 9908 9909 *) Allow the config file extension section to be overwritten on the 9910 command line. Based on an original idea from Massimiliano Pala 9911 <madwolf@comune.modena.it>. The new option is called -extensions 9912 and can be applied to ca, req and x509. Also -reqexts to override 9913 the request extensions in req and -crlexts to override the crl extensions 9914 in ca. 9915 [Steve Henson] 9916 9917 *) Add new feature to the SPKAC handling in ca. Now you can include 9918 the same field multiple times by preceding it by "XXXX." for example: 9919 1.OU="Unit name 1" 9920 2.OU="Unit name 2" 9921 this is the same syntax as used in the req config file. 9922 [Steve Henson] 9923 9924 *) Allow certificate extensions to be added to certificate requests. These 9925 are specified in a 'req_extensions' option of the req section of the 9926 config file. They can be printed out with the -text option to req but 9927 are otherwise ignored at present. 9928 [Steve Henson] 9929 9930 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 9931 data read consists of only the final block it would not decrypted because 9932 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 9933 A misplaced 'break' also meant the decrypted final block might not be 9934 copied until the next read. 9935 [Steve Henson] 9936 9937 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 9938 a few extra parameters to the DH structure: these will be useful if 9939 for example we want the value of 'q' or implement X9.42 DH. 9940 [Steve Henson] 9941 9942 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 9943 provides hooks that allow the default DSA functions or functions on a 9944 "per key" basis to be replaced. This allows hardware acceleration and 9945 hardware key storage to be handled without major modification to the 9946 library. Also added low level modexp hooks and CRYPTO_EX structure and 9947 associated functions. 9948 [Steve Henson] 9949 9950 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 9951 as "read only": it can't be written to and the buffer it points to will 9952 not be freed. Reading from a read only BIO is much more efficient than 9953 a normal memory BIO. This was added because there are several times when 9954 an area of memory needs to be read from a BIO. The previous method was 9955 to create a memory BIO and write the data to it, this results in two 9956 copies of the data and an O(n^2) reading algorithm. There is a new 9957 function BIO_new_mem_buf() which creates a read only memory BIO from 9958 an area of memory. Also modified the PKCS#7 routines to use read only 9959 memory BIOs. 9960 [Steve Henson] 9961 9962 *) Bugfix: ssl23_get_client_hello did not work properly when called in 9963 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 9964 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 9965 but a retry condition occured while trying to read the rest. 9966 [Bodo Moeller] 9967 9968 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 9969 NID_pkcs7_encrypted by default: this was wrong since this should almost 9970 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 9971 the encrypted data type: this is a more sensible place to put it and it 9972 allows the PKCS#12 code to be tidied up that duplicated this 9973 functionality. 9974 [Steve Henson] 9975 9976 *) Changed obj_dat.pl script so it takes its input and output files on 9977 the command line. This should avoid shell escape redirection problems 9978 under Win32. 9979 [Steve Henson] 9980 9981 *) Initial support for certificate extension requests, these are included 9982 in things like Xenroll certificate requests. Included functions to allow 9983 extensions to be obtained and added. 9984 [Steve Henson] 9985 9986 *) -crlf option to s_client and s_server for sending newlines as 9987 CRLF (as required by many protocols). 9988 [Bodo Moeller] 9989 9990 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 9991 9992 *) Install libRSAglue.a when OpenSSL is built with RSAref. 9993 [Ralf S. Engelschall] 9994 9995 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 9996 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 9997 9998 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 9999 program. 10000 [Steve Henson] 10001 10002 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 10003 DH parameters/keys (q is lost during that conversion, but the resulting 10004 DH parameters contain its length). 10005 10006 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 10007 much faster than DH_generate_parameters (which creates parameters 10008 where p = 2*q + 1), and also the smaller q makes DH computations 10009 much more efficient (160-bit exponentiation instead of 1024-bit 10010 exponentiation); so this provides a convenient way to support DHE 10011 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 10012 utter importance to use 10013 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 10014 or 10015 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 10016 when such DH parameters are used, because otherwise small subgroup 10017 attacks may become possible! 10018 [Bodo Moeller] 10019 10020 *) Avoid memory leak in i2d_DHparams. 10021 [Bodo Moeller] 10022 10023 *) Allow the -k option to be used more than once in the enc program: 10024 this allows the same encrypted message to be read by multiple recipients. 10025 [Steve Henson] 10026 10027 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 10028 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 10029 it will always use the numerical form of the OID, even if it has a short 10030 or long name. 10031 [Steve Henson] 10032 10033 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 10034 method only got called if p,q,dmp1,dmq1,iqmp components were present, 10035 otherwise bn_mod_exp was called. In the case of hardware keys for example 10036 no private key components need be present and it might store extra data 10037 in the RSA structure, which cannot be accessed from bn_mod_exp. 10038 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 10039 private key operations. 10040 [Steve Henson] 10041 10042 *) Added support for SPARC Linux. 10043 [Andy Polyakov] 10044 10045 *) pem_password_cb function type incompatibly changed from 10046 typedef int pem_password_cb(char *buf, int size, int rwflag); 10047 to 10048 ....(char *buf, int size, int rwflag, void *userdata); 10049 so that applications can pass data to their callbacks: 10050 The PEM[_ASN1]_{read,write}... functions and macros now take an 10051 additional void * argument, which is just handed through whenever 10052 the password callback is called. 10053 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 10054 10055 New function SSL_CTX_set_default_passwd_cb_userdata. 10056 10057 Compatibility note: As many C implementations push function arguments 10058 onto the stack in reverse order, the new library version is likely to 10059 interoperate with programs that have been compiled with the old 10060 pem_password_cb definition (PEM_whatever takes some data that 10061 happens to be on the stack as its last argument, and the callback 10062 just ignores this garbage); but there is no guarantee whatsoever that 10063 this will work. 10064 10065 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 10066 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 10067 problems not only on Windows, but also on some Unix platforms. 10068 To avoid problematic command lines, these definitions are now in an 10069 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 10070 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 10071 [Bodo Moeller] 10072 10073 *) MIPS III/IV assembler module is reimplemented. 10074 [Andy Polyakov] 10075 10076 *) More DES library cleanups: remove references to srand/rand and 10077 delete an unused file. 10078 [Ulf M��ller] 10079 10080 *) Add support for the the free Netwide assembler (NASM) under Win32, 10081 since not many people have MASM (ml) and it can be hard to obtain. 10082 This is currently experimental but it seems to work OK and pass all 10083 the tests. Check out INSTALL.W32 for info. 10084 [Steve Henson] 10085 10086 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 10087 without temporary keys kept an extra copy of the server key, 10088 and connections with temporary keys did not free everything in case 10089 of an error. 10090 [Bodo Moeller] 10091 10092 *) New function RSA_check_key and new openssl rsa option -check 10093 for verifying the consistency of RSA keys. 10094 [Ulf Moeller, Bodo Moeller] 10095 10096 *) Various changes to make Win32 compile work: 10097 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 10098 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 10099 comparison" warnings. 10100 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 10101 [Steve Henson] 10102 10103 *) Add a debugging option to PKCS#5 v2 key generation function: when 10104 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 10105 derived keys are printed to stderr. 10106 [Steve Henson] 10107 10108 *) Copy the flags in ASN1_STRING_dup(). 10109 [Roman E. Pavlov <pre@mo.msk.ru>] 10110 10111 *) The x509 application mishandled signing requests containing DSA 10112 keys when the signing key was also DSA and the parameters didn't match. 10113 10114 It was supposed to omit the parameters when they matched the signing key: 10115 the verifying software was then supposed to automatically use the CA's 10116 parameters if they were absent from the end user certificate. 10117 10118 Omitting parameters is no longer recommended. The test was also 10119 the wrong way round! This was probably due to unusual behaviour in 10120 EVP_cmp_parameters() which returns 1 if the parameters match. 10121 This meant that parameters were omitted when they *didn't* match and 10122 the certificate was useless. Certificates signed with 'ca' didn't have 10123 this bug. 10124 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 10125 10126 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 10127 The interface is as follows: 10128 Applications can use 10129 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 10130 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 10131 "off" is now the default. 10132 The library internally uses 10133 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 10134 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 10135 to disable memory-checking temporarily. 10136 10137 Some inconsistent states that previously were possible (and were 10138 even the default) are now avoided. 10139 10140 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 10141 with each memory chunk allocated; this is occasionally more helpful 10142 than just having a counter. 10143 10144 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 10145 10146 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 10147 extensions. 10148 [Bodo Moeller] 10149 10150 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 10151 which largely parallels "options", but is for changing API behaviour, 10152 whereas "options" are about protocol behaviour. 10153 Initial "mode" flags are: 10154 10155 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 10156 a single record has been written. 10157 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 10158 retries use the same buffer location. 10159 (But all of the contents must be 10160 copied!) 10161 [Bodo Moeller] 10162 10163 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 10164 worked. 10165 10166 *) Fix problems with no-hmac etc. 10167 [Ulf M��ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 10168 10169 *) New functions RSA_get_default_method(), RSA_set_method() and 10170 RSA_get_method(). These allows replacement of RSA_METHODs without having 10171 to mess around with the internals of an RSA structure. 10172 [Steve Henson] 10173 10174 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 10175 Also really enable memory leak checks in openssl.c and in some 10176 test programs. 10177 [Chad C. Mulligan, Bodo Moeller] 10178 10179 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 10180 up the length of negative integers. This has now been simplified to just 10181 store the length when it is first determined and use it later, rather 10182 than trying to keep track of where data is copied and updating it to 10183 point to the end. 10184 [Steve Henson, reported by Brien Wheeler 10185 <bwheeler@authentica-security.com>] 10186 10187 *) Add a new function PKCS7_signatureVerify. This allows the verification 10188 of a PKCS#7 signature but with the signing certificate passed to the 10189 function itself. This contrasts with PKCS7_dataVerify which assumes the 10190 certificate is present in the PKCS#7 structure. This isn't always the 10191 case: certificates can be omitted from a PKCS#7 structure and be 10192 distributed by "out of band" means (such as a certificate database). 10193 [Steve Henson] 10194 10195 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 10196 function prototypes in pem.h, also change util/mkdef.pl to add the 10197 necessary function names. 10198 [Steve Henson] 10199 10200 *) mk1mf.pl (used by Windows builds) did not properly read the 10201 options set by Configure in the top level Makefile, and Configure 10202 was not even able to write more than one option correctly. 10203 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 10204 [Bodo Moeller] 10205 10206 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 10207 file to be loaded from a BIO or FILE pointer. The BIO version will 10208 for example allow memory BIOs to contain config info. 10209 [Steve Henson] 10210 10211 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 10212 Whoever hopes to achieve shared-library compatibility across versions 10213 must use this, not the compile-time macro. 10214 (Exercise 0.9.4: Which is the minimum library version required by 10215 such programs?) 10216 Note: All this applies only to multi-threaded programs, others don't 10217 need locks. 10218 [Bodo Moeller] 10219 10220 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 10221 through a BIO pair triggered the default case, i.e. 10222 SSLerr(...,SSL_R_UNKNOWN_STATE). 10223 [Bodo Moeller] 10224 10225 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 10226 can use the SSL library even if none of the specific BIOs is 10227 appropriate. 10228 [Bodo Moeller] 10229 10230 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 10231 for the encoded length. 10232 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 10233 10234 *) Add initial documentation of the X509V3 functions. 10235 [Steve Henson] 10236 10237 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 10238 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 10239 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 10240 secure PKCS#8 private key format with a high iteration count. 10241 [Steve Henson] 10242 10243 *) Fix determination of Perl interpreter: A perl or perl5 10244 _directory_ in $PATH was also accepted as the interpreter. 10245 [Ralf S. Engelschall] 10246 10247 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 10248 wrong with it but it was very old and did things like calling 10249 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 10250 unusual formatting. 10251 [Steve Henson] 10252 10253 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 10254 to use the new extension code. 10255 [Steve Henson] 10256 10257 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 10258 with macros. This should make it easier to change their form, add extra 10259 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 10260 constant. 10261 [Steve Henson] 10262 10263 *) Add to configuration table a new entry that can specify an alternative 10264 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 10265 according to Mark Crispin <MRC@Panda.COM>. 10266 [Bodo Moeller] 10267 10268#if 0 10269 *) DES CBC did not update the IV. Weird. 10270 [Ben Laurie] 10271#else 10272 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 10273 Changing the behaviour of the former might break existing programs -- 10274 where IV updating is needed, des_ncbc_encrypt can be used. 10275#endif 10276 10277 *) When bntest is run from "make test" it drives bc to check its 10278 calculations, as well as internally checking them. If an internal check 10279 fails, it needs to cause bc to give a non-zero result or make test carries 10280 on without noticing the failure. Fixed. 10281 [Ben Laurie] 10282 10283 *) DES library cleanups. 10284 [Ulf M��ller] 10285 10286 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 10287 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 10288 ciphers. NOTE: although the key derivation function has been verified 10289 against some published test vectors it has not been extensively tested 10290 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 10291 of v2.0. 10292 [Steve Henson] 10293 10294 *) Instead of "mkdir -p", which is not fully portable, use new 10295 Perl script "util/mkdir-p.pl". 10296 [Bodo Moeller] 10297 10298 *) Rewrite the way password based encryption (PBE) is handled. It used to 10299 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 10300 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 10301 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 10302 the 'parameter' field of the AlgorithmIdentifier is passed to the 10303 underlying key generation function so it must do its own ASN1 parsing. 10304 This has also changed the EVP_PBE_CipherInit() function which now has a 10305 'parameter' argument instead of literal salt and iteration count values 10306 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 10307 [Steve Henson] 10308 10309 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 10310 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 10311 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 10312 KEY" because this clashed with PKCS#8 unencrypted string. Since this 10313 value was just used as a "magic string" and not used directly its 10314 value doesn't matter. 10315 [Steve Henson] 10316 10317 *) Introduce some semblance of const correctness to BN. Shame C doesn't 10318 support mutable. 10319 [Ben Laurie] 10320 10321 *) "linux-sparc64" configuration (ultrapenguin). 10322 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 10323 "linux-sparc" configuration. 10324 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 10325 10326 *) config now generates no-xxx options for missing ciphers. 10327 [Ulf M��ller] 10328 10329 *) Support the EBCDIC character set (work in progress). 10330 File ebcdic.c not yet included because it has a different license. 10331 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10332 10333 *) Support BS2000/OSD-POSIX. 10334 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 10335 10336 *) Make callbacks for key generation use void * instead of char *. 10337 [Ben Laurie] 10338 10339 *) Make S/MIME samples compile (not yet tested). 10340 [Ben Laurie] 10341 10342 *) Additional typesafe stacks. 10343 [Ben Laurie] 10344 10345 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 10346 [Bodo Moeller] 10347 10348 10349 Changes between 0.9.3 and 0.9.3a [29 May 1999] 10350 10351 *) New configuration variant "sco5-gcc". 10352 10353 *) Updated some demos. 10354 [Sean O Riordain, Wade Scholine] 10355 10356 *) Add missing BIO_free at exit of pkcs12 application. 10357 [Wu Zhigang] 10358 10359 *) Fix memory leak in conf.c. 10360 [Steve Henson] 10361 10362 *) Updates for Win32 to assembler version of MD5. 10363 [Steve Henson] 10364 10365 *) Set #! path to perl in apps/der_chop to where we found it 10366 instead of using a fixed path. 10367 [Bodo Moeller] 10368 10369 *) SHA library changes for irix64-mips4-cc. 10370 [Andy Polyakov] 10371 10372 *) Improvements for VMS support. 10373 [Richard Levitte] 10374 10375 10376 Changes between 0.9.2b and 0.9.3 [24 May 1999] 10377 10378 *) Bignum library bug fix. IRIX 6 passes "make test" now! 10379 This also avoids the problems with SC4.2 and unpatched SC5. 10380 [Andy Polyakov <appro@fy.chalmers.se>] 10381 10382 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 10383 These are required because of the typesafe stack would otherwise break 10384 existing code. If old code used a structure member which used to be STACK 10385 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 10386 sk_num or sk_value it would produce an error because the num, data members 10387 are not present in STACK_OF. Now it just produces a warning. sk_set 10388 replaces the old method of assigning a value to sk_value 10389 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 10390 that does this will no longer work (and should use sk_set instead) but 10391 this could be regarded as a "questionable" behaviour anyway. 10392 [Steve Henson] 10393 10394 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 10395 correctly handle encrypted S/MIME data. 10396 [Steve Henson] 10397 10398 *) Change type of various DES function arguments from des_cblock 10399 (which means, in function argument declarations, pointer to char) 10400 to des_cblock * (meaning pointer to array with 8 char elements), 10401 which allows the compiler to do more typechecking; it was like 10402 that back in SSLeay, but with lots of ugly casts. 10403 10404 Introduce new type const_des_cblock. 10405 [Bodo Moeller] 10406 10407 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 10408 problems: find RecipientInfo structure that matches recipient certificate 10409 and initialise the ASN1 structures properly based on passed cipher. 10410 [Steve Henson] 10411 10412 *) Belatedly make the BN tests actually check the results. 10413 [Ben Laurie] 10414 10415 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 10416 to and from BNs: it was completely broken. New compilation option 10417 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 10418 key elements as negative integers. 10419 [Steve Henson] 10420 10421 *) Reorganize and speed up MD5. 10422 [Andy Polyakov <appro@fy.chalmers.se>] 10423 10424 *) VMS support. 10425 [Richard Levitte <richard@levitte.org>] 10426 10427 *) New option -out to asn1parse to allow the parsed structure to be 10428 output to a file. This is most useful when combined with the -strparse 10429 option to examine the output of things like OCTET STRINGS. 10430 [Steve Henson] 10431 10432 *) Make SSL library a little more fool-proof by not requiring any longer 10433 that SSL_set_{accept,connect}_state be called before 10434 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 10435 in many applications because usually everything *appeared* to work as 10436 intended anyway -- now it really works as intended). 10437 [Bodo Moeller] 10438 10439 *) Move openssl.cnf out of lib/. 10440 [Ulf M��ller] 10441 10442 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 10443 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 10444 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 10445 [Ralf S. Engelschall] 10446 10447 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 10448 handle PKCS#7 enveloped data properly. 10449 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 10450 10451 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 10452 copying pointers. The cert_st handling is changed by this in 10453 various ways (and thus what used to be known as ctx->default_cert 10454 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 10455 any longer when s->cert does not give us what we need). 10456 ssl_cert_instantiate becomes obsolete by this change. 10457 As soon as we've got the new code right (possibly it already is?), 10458 we have solved a couple of bugs of the earlier code where s->cert 10459 was used as if it could not have been shared with other SSL structures. 10460 10461 Note that using the SSL API in certain dirty ways now will result 10462 in different behaviour than observed with earlier library versions: 10463 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 10464 does not influence s as it used to. 10465 10466 In order to clean up things more thoroughly, inside SSL_SESSION 10467 we don't use CERT any longer, but a new structure SESS_CERT 10468 that holds per-session data (if available); currently, this is 10469 the peer's certificate chain and, for clients, the server's certificate 10470 and temporary key. CERT holds only those values that can have 10471 meaningful defaults in an SSL_CTX. 10472 [Bodo Moeller] 10473 10474 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 10475 from the internal representation. Various PKCS#7 fixes: remove some 10476 evil casts and set the enc_dig_alg field properly based on the signing 10477 key type. 10478 [Steve Henson] 10479 10480 *) Allow PKCS#12 password to be set from the command line or the 10481 environment. Let 'ca' get its config file name from the environment 10482 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 10483 and 'x509'). 10484 [Steve Henson] 10485 10486 *) Allow certificate policies extension to use an IA5STRING for the 10487 organization field. This is contrary to the PKIX definition but 10488 VeriSign uses it and IE5 only recognises this form. Document 'x509' 10489 extension option. 10490 [Steve Henson] 10491 10492 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 10493 without disallowing inline assembler and the like for non-pedantic builds. 10494 [Ben Laurie] 10495 10496 *) Support Borland C++ builder. 10497 [Janez Jere <jj@void.si>, modified by Ulf M��ller] 10498 10499 *) Support Mingw32. 10500 [Ulf M��ller] 10501 10502 *) SHA-1 cleanups and performance enhancements. 10503 [Andy Polyakov <appro@fy.chalmers.se>] 10504 10505 *) Sparc v8plus assembler for the bignum library. 10506 [Andy Polyakov <appro@fy.chalmers.se>] 10507 10508 *) Accept any -xxx and +xxx compiler options in Configure. 10509 [Ulf M��ller] 10510 10511 *) Update HPUX configuration. 10512 [Anonymous] 10513 10514 *) Add missing sk_<type>_unshift() function to safestack.h 10515 [Ralf S. Engelschall] 10516 10517 *) New function SSL_CTX_use_certificate_chain_file that sets the 10518 "extra_cert"s in addition to the certificate. (This makes sense 10519 only for "PEM" format files, as chains as a whole are not 10520 DER-encoded.) 10521 [Bodo Moeller] 10522 10523 *) Support verify_depth from the SSL API. 10524 x509_vfy.c had what can be considered an off-by-one-error: 10525 Its depth (which was not part of the external interface) 10526 was actually counting the number of certificates in a chain; 10527 now it really counts the depth. 10528 [Bodo Moeller] 10529 10530 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 10531 instead of X509err, which often resulted in confusing error 10532 messages since the error codes are not globally unique 10533 (e.g. an alleged error in ssl3_accept when a certificate 10534 didn't match the private key). 10535 10536 *) New function SSL_CTX_set_session_id_context that allows to set a default 10537 value (so that you don't need SSL_set_session_id_context for each 10538 connection using the SSL_CTX). 10539 [Bodo Moeller] 10540 10541 *) OAEP decoding bug fix. 10542 [Ulf M��ller] 10543 10544 *) Support INSTALL_PREFIX for package builders, as proposed by 10545 David Harris. 10546 [Bodo Moeller] 10547 10548 *) New Configure options "threads" and "no-threads". For systems 10549 where the proper compiler options are known (currently Solaris 10550 and Linux), "threads" is the default. 10551 [Bodo Moeller] 10552 10553 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 10554 [Bodo Moeller] 10555 10556 *) Install various scripts to $(OPENSSLDIR)/misc, not to 10557 $(INSTALLTOP)/bin -- they shouldn't clutter directories 10558 such as /usr/local/bin. 10559 [Bodo Moeller] 10560 10561 *) "make linux-shared" to build shared libraries. 10562 [Niels Poppe <niels@netbox.org>] 10563 10564 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 10565 [Ulf M��ller] 10566 10567 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 10568 extension adding in x509 utility. 10569 [Steve Henson] 10570 10571 *) Remove NOPROTO sections and error code comments. 10572 [Ulf M��ller] 10573 10574 *) Partial rewrite of the DEF file generator to now parse the ANSI 10575 prototypes. 10576 [Steve Henson] 10577 10578 *) New Configure options --prefix=DIR and --openssldir=DIR. 10579 [Ulf M��ller] 10580 10581 *) Complete rewrite of the error code script(s). It is all now handled 10582 by one script at the top level which handles error code gathering, 10583 header rewriting and C source file generation. It should be much better 10584 than the old method: it now uses a modified version of Ulf's parser to 10585 read the ANSI prototypes in all header files (thus the old K&R definitions 10586 aren't needed for error creation any more) and do a better job of 10587 translating function codes into names. The old 'ASN1 error code imbedded 10588 in a comment' is no longer necessary and it doesn't use .err files which 10589 have now been deleted. Also the error code call doesn't have to appear all 10590 on one line (which resulted in some large lines...). 10591 [Steve Henson] 10592 10593 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 10594 [Bodo Moeller] 10595 10596 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 10597 0 (which usually indicates a closed connection), but continue reading. 10598 [Bodo Moeller] 10599 10600 *) Fix some race conditions. 10601 [Bodo Moeller] 10602 10603 *) Add support for CRL distribution points extension. Add Certificate 10604 Policies and CRL distribution points documentation. 10605 [Steve Henson] 10606 10607 *) Move the autogenerated header file parts to crypto/opensslconf.h. 10608 [Ulf M��ller] 10609 10610 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 10611 8 of keying material. Merlin has also confirmed interop with this fix 10612 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 10613 [Merlin Hughes <merlin@baltimore.ie>] 10614 10615 *) Fix lots of warnings. 10616 [Richard Levitte <levitte@stacken.kth.se>] 10617 10618 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 10619 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 10620 [Richard Levitte <levitte@stacken.kth.se>] 10621 10622 *) Fix problems with sizeof(long) == 8. 10623 [Andy Polyakov <appro@fy.chalmers.se>] 10624 10625 *) Change functions to ANSI C. 10626 [Ulf M��ller] 10627 10628 *) Fix typos in error codes. 10629 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M��ller] 10630 10631 *) Remove defunct assembler files from Configure. 10632 [Ulf M��ller] 10633 10634 *) SPARC v8 assembler BIGNUM implementation. 10635 [Andy Polyakov <appro@fy.chalmers.se>] 10636 10637 *) Support for Certificate Policies extension: both print and set. 10638 Various additions to support the r2i method this uses. 10639 [Steve Henson] 10640 10641 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 10642 return a const string when you are expecting an allocated buffer. 10643 [Ben Laurie] 10644 10645 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 10646 types DirectoryString and DisplayText. 10647 [Steve Henson] 10648 10649 *) Add code to allow r2i extensions to access the configuration database, 10650 add an LHASH database driver and add several ctx helper functions. 10651 [Steve Henson] 10652 10653 *) Fix an evil bug in bn_expand2() which caused various BN functions to 10654 fail when they extended the size of a BIGNUM. 10655 [Steve Henson] 10656 10657 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 10658 support typesafe stack. 10659 [Steve Henson] 10660 10661 *) Fix typo in SSL_[gs]et_options(). 10662 [Nils Frostberg <nils@medcom.se>] 10663 10664 *) Delete various functions and files that belonged to the (now obsolete) 10665 old X509V3 handling code. 10666 [Steve Henson] 10667 10668 *) New Configure option "rsaref". 10669 [Ulf M��ller] 10670 10671 *) Don't auto-generate pem.h. 10672 [Bodo Moeller] 10673 10674 *) Introduce type-safe ASN.1 SETs. 10675 [Ben Laurie] 10676 10677 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 10678 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 10679 10680 *) Introduce type-safe STACKs. This will almost certainly break lots of code 10681 that links with OpenSSL (well at least cause lots of warnings), but fear 10682 not: the conversion is trivial, and it eliminates loads of evil casts. A 10683 few STACKed things have been converted already. Feel free to convert more. 10684 In the fullness of time, I'll do away with the STACK type altogether. 10685 [Ben Laurie] 10686 10687 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 10688 specified in <certfile> by updating the entry in the index.txt file. 10689 This way one no longer has to edit the index.txt file manually for 10690 revoking a certificate. The -revoke option does the gory details now. 10691 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 10692 10693 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 10694 `-text' option at all and this way the `-noout -text' combination was 10695 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 10696 [Ralf S. Engelschall] 10697 10698 *) Make sure a corresponding plain text error message exists for the 10699 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 10700 verify callback function determined that a certificate was revoked. 10701 [Ralf S. Engelschall] 10702 10703 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 10704 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 10705 all available cipers including rc5, which was forgotten until now. 10706 In order to let the testing shell script know which algorithms 10707 are available, a new (up to now undocumented) command 10708 "openssl list-cipher-commands" is used. 10709 [Bodo Moeller] 10710 10711 *) Bugfix: s_client occasionally would sleep in select() when 10712 it should have checked SSL_pending() first. 10713 [Bodo Moeller] 10714 10715 *) New functions DSA_do_sign and DSA_do_verify to provide access to 10716 the raw DSA values prior to ASN.1 encoding. 10717 [Ulf M��ller] 10718 10719 *) Tweaks to Configure 10720 [Niels Poppe <niels@netbox.org>] 10721 10722 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 10723 yet... 10724 [Steve Henson] 10725 10726 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 10727 [Ulf M��ller] 10728 10729 *) New config option to avoid instructions that are illegal on the 80386. 10730 The default code is faster, but requires at least a 486. 10731 [Ulf M��ller] 10732 10733 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 10734 SSL2_SERVER_VERSION (not used at all) macros, which are now the 10735 same as SSL2_VERSION anyway. 10736 [Bodo Moeller] 10737 10738 *) New "-showcerts" option for s_client. 10739 [Bodo Moeller] 10740 10741 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 10742 application. Various cleanups and fixes. 10743 [Steve Henson] 10744 10745 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 10746 modify error routines to work internally. Add error codes and PBE init 10747 to library startup routines. 10748 [Steve Henson] 10749 10750 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 10751 packing functions to asn1 and evp. Changed function names and error 10752 codes along the way. 10753 [Steve Henson] 10754 10755 *) PKCS12 integration: and so it begins... First of several patches to 10756 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 10757 objects to objects.h 10758 [Steve Henson] 10759 10760 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 10761 and display support for Thawte strong extranet extension. 10762 [Steve Henson] 10763 10764 *) Add LinuxPPC support. 10765 [Jeff Dubrule <igor@pobox.org>] 10766 10767 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 10768 bn_div_words in alpha.s. 10769 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 10770 10771 *) Make sure the RSA OAEP test is skipped under -DRSAref because 10772 OAEP isn't supported when OpenSSL is built with RSAref. 10773 [Ulf Moeller <ulf@fitug.de>] 10774 10775 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 10776 so they no longer are missing under -DNOPROTO. 10777 [Soren S. Jorvang <soren@t.dk>] 10778 10779 10780 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 10781 10782 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 10783 doesn't work when the session is reused. Coming soon! 10784 [Ben Laurie] 10785 10786 *) Fix a security hole, that allows sessions to be reused in the wrong 10787 context thus bypassing client cert protection! All software that uses 10788 client certs and session caches in multiple contexts NEEDS PATCHING to 10789 allow session reuse! A fuller solution is in the works. 10790 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 10791 10792 *) Some more source tree cleanups (removed obsolete files 10793 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 10794 permission on "config" script to be executable) and a fix for the INSTALL 10795 document. 10796 [Ulf Moeller <ulf@fitug.de>] 10797 10798 *) Remove some legacy and erroneous uses of malloc, free instead of 10799 Malloc, Free. 10800 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 10801 10802 *) Make rsa_oaep_test return non-zero on error. 10803 [Ulf Moeller <ulf@fitug.de>] 10804 10805 *) Add support for native Solaris shared libraries. Configure 10806 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 10807 if someone would make that last step automatic. 10808 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 10809 10810 *) ctx_size was not built with the right compiler during "make links". Fixed. 10811 [Ben Laurie] 10812 10813 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 10814 except NULL ciphers". This means the default cipher list will no longer 10815 enable NULL ciphers. They need to be specifically enabled e.g. with 10816 the string "DEFAULT:eNULL". 10817 [Steve Henson] 10818 10819 *) Fix to RSA private encryption routines: if p < q then it would 10820 occasionally produce an invalid result. This will only happen with 10821 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 10822 [Steve Henson] 10823 10824 *) Be less restrictive and allow also `perl util/perlpath.pl 10825 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 10826 because this way one can also use an interpreter named `perl5' (which is 10827 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 10828 installed as `perl'). 10829 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10830 10831 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 10832 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10833 10834 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 10835 advapi32.lib to Win32 build and change the pem test comparision 10836 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 10837 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 10838 and crypto/des/ede_cbcm_enc.c. 10839 [Steve Henson] 10840 10841 *) DES quad checksum was broken on big-endian architectures. Fixed. 10842 [Ben Laurie] 10843 10844 *) Comment out two functions in bio.h that aren't implemented. Fix up the 10845 Win32 test batch file so it (might) work again. The Win32 test batch file 10846 is horrible: I feel ill.... 10847 [Steve Henson] 10848 10849 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 10850 in e_os.h. Audit of header files to check ANSI and non ANSI 10851 sections: 10 functions were absent from non ANSI section and not exported 10852 from Windows DLLs. Fixed up libeay.num for new functions. 10853 [Steve Henson] 10854 10855 *) Make `openssl version' output lines consistent. 10856 [Ralf S. Engelschall] 10857 10858 *) Fix Win32 symbol export lists for BIO functions: Added 10859 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 10860 to ms/libeay{16,32}.def. 10861 [Ralf S. Engelschall] 10862 10863 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 10864 fine under Unix and passes some trivial tests I've now added. But the 10865 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 10866 added to make sure no one expects that this stuff really works in the 10867 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 10868 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 10869 openssl_bio.xs. 10870 [Ralf S. Engelschall] 10871 10872 *) Fix the generation of two part addresses in perl. 10873 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 10874 10875 *) Add config entry for Linux on MIPS. 10876 [John Tobey <jtobey@channel1.com>] 10877 10878 *) Make links whenever Configure is run, unless we are on Windoze. 10879 [Ben Laurie] 10880 10881 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 10882 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 10883 in CRLs. 10884 [Steve Henson] 10885 10886 *) Add a useful kludge to allow package maintainers to specify compiler and 10887 other platforms details on the command line without having to patch the 10888 Configure script everytime: One now can use ``perl Configure 10889 <id>:<details>'', i.e. platform ids are allowed to have details appended 10890 to them (seperated by colons). This is treated as there would be a static 10891 pre-configured entry in Configure's %table under key <id> with value 10892 <details> and ``perl Configure <id>'' is called. So, when you want to 10893 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 10894 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 10895 now, which overrides the FreeBSD-elf entry on-the-fly. 10896 [Ralf S. Engelschall] 10897 10898 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 10899 [Ben Laurie] 10900 10901 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 10902 on the `perl Configure ...' command line. This way one can compile 10903 OpenSSL libraries with Position Independent Code (PIC) which is needed 10904 for linking it into DSOs. 10905 [Ralf S. Engelschall] 10906 10907 *) Remarkably, export ciphers were totally broken and no-one had noticed! 10908 Fixed. 10909 [Ben Laurie] 10910 10911 *) Cleaned up the LICENSE document: The official contact for any license 10912 questions now is the OpenSSL core team under openssl-core@openssl.org. 10913 And add a paragraph about the dual-license situation to make sure people 10914 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 10915 to the OpenSSL toolkit. 10916 [Ralf S. Engelschall] 10917 10918 *) General source tree makefile cleanups: Made `making xxx in yyy...' 10919 display consistent in the source tree and replaced `/bin/rm' by `rm'. 10920 Additonally cleaned up the `make links' target: Remove unnecessary 10921 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 10922 to speed processing and no longer clutter the display with confusing 10923 stuff. Instead only the actually done links are displayed. 10924 [Ralf S. Engelschall] 10925 10926 *) Permit null encryption ciphersuites, used for authentication only. It used 10927 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 10928 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 10929 encryption. 10930 [Ben Laurie] 10931 10932 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 10933 signed attributes when verifying signatures (this would break them), 10934 the detached data encoding was wrong and public keys obtained using 10935 X509_get_pubkey() weren't freed. 10936 [Steve Henson] 10937 10938 *) Add text documentation for the BUFFER functions. Also added a work around 10939 to a Win95 console bug. This was triggered by the password read stuff: the 10940 last character typed gets carried over to the next fread(). If you were 10941 generating a new cert request using 'req' for example then the last 10942 character of the passphrase would be CR which would then enter the first 10943 field as blank. 10944 [Steve Henson] 10945 10946 *) Added the new `Includes OpenSSL Cryptography Software' button as 10947 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 10948 button and can be used by applications based on OpenSSL to show the 10949 relationship to the OpenSSL project. 10950 [Ralf S. Engelschall] 10951 10952 *) Remove confusing variables in function signatures in files 10953 ssl/ssl_lib.c and ssl/ssl.h. 10954 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10955 10956 *) Don't install bss_file.c under PREFIX/include/ 10957 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10958 10959 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 10960 functions that return function pointers and has support for NT specific 10961 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 10962 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 10963 unsigned to signed types: this was killing the Win32 compile. 10964 [Steve Henson] 10965 10966 *) Add new certificate file to stack functions, 10967 SSL_add_dir_cert_subjects_to_stack() and 10968 SSL_add_file_cert_subjects_to_stack(). These largely supplant 10969 SSL_load_client_CA_file(), and can be used to add multiple certs easily 10970 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 10971 This means that Apache-SSL and similar packages don't have to mess around 10972 to add as many CAs as they want to the preferred list. 10973 [Ben Laurie] 10974 10975 *) Experiment with doxygen documentation. Currently only partially applied to 10976 ssl/ssl_lib.c. 10977 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 10978 openssl.doxy as the configuration file. 10979 [Ben Laurie] 10980 10981 *) Get rid of remaining C++-style comments which strict C compilers hate. 10982 [Ralf S. Engelschall, pointed out by Carlos Amengual] 10983 10984 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 10985 compiled in by default: it has problems with large keys. 10986 [Steve Henson] 10987 10988 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 10989 DH private keys and/or callback functions which directly correspond to 10990 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 10991 is needed for applications which have to configure certificates on a 10992 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 10993 (e.g. s_server). 10994 For the RSA certificate situation is makes no difference, but 10995 for the DSA certificate situation this fixes the "no shared cipher" 10996 problem where the OpenSSL cipher selection procedure failed because the 10997 temporary keys were not overtaken from the context and the API provided 10998 no way to reconfigure them. 10999 The new functions now let applications reconfigure the stuff and they 11000 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 11001 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 11002 non-public-API function ssl_cert_instantiate() is used as a helper 11003 function and also to reduce code redundancy inside ssl_rsa.c. 11004 [Ralf S. Engelschall] 11005 11006 *) Move s_server -dcert and -dkey options out of the undocumented feature 11007 area because they are useful for the DSA situation and should be 11008 recognized by the users. 11009 [Ralf S. Engelschall] 11010 11011 *) Fix the cipher decision scheme for export ciphers: the export bits are 11012 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 11013 SSL_EXP_MASK. So, the original variable has to be used instead of the 11014 already masked variable. 11015 [Richard Levitte <levitte@stacken.kth.se>] 11016 11017 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 11018 [Richard Levitte <levitte@stacken.kth.se>] 11019 11020 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 11021 from `int' to `unsigned int' because it's a length and initialized by 11022 EVP_DigestFinal() which expects an `unsigned int *'. 11023 [Richard Levitte <levitte@stacken.kth.se>] 11024 11025 *) Don't hard-code path to Perl interpreter on shebang line of Configure 11026 script. Instead use the usual Shell->Perl transition trick. 11027 [Ralf S. Engelschall] 11028 11029 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 11030 (in addition to RSA certificates) to match the behaviour of `openssl dsa 11031 -noout -modulus' as it's already the case for `openssl rsa -noout 11032 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 11033 currently the public key is printed (a decision which was already done by 11034 `openssl dsa -modulus' in the past) which serves a similar purpose. 11035 Additionally the NO_RSA no longer completely removes the whole -modulus 11036 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 11037 now, too. 11038 [Ralf S. Engelschall] 11039 11040 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 11041 BIO. See the source (crypto/evp/bio_ok.c) for more info. 11042 [Arne Ansper <arne@ats.cyber.ee>] 11043 11044 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 11045 to be added. Now both 'req' and 'ca' can use new objects defined in the 11046 config file. 11047 [Steve Henson] 11048 11049 *) Add cool BIO that does syslog (or event log on NT). 11050 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 11051 11052 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 11053 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 11054 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 11055 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 11056 [Ben Laurie] 11057 11058 *) Add preliminary config info for new extension code. 11059 [Steve Henson] 11060 11061 *) Make RSA_NO_PADDING really use no padding. 11062 [Ulf Moeller <ulf@fitug.de>] 11063 11064 *) Generate errors when private/public key check is done. 11065 [Ben Laurie] 11066 11067 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 11068 for some CRL extensions and new objects added. 11069 [Steve Henson] 11070 11071 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 11072 key usage extension and fuller support for authority key id. 11073 [Steve Henson] 11074 11075 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 11076 padding method for RSA, which is recommended for new applications in PKCS 11077 #1 v2.0 (RFC 2437, October 1998). 11078 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 11079 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 11080 against Bleichbacher's attack on RSA. 11081 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 11082 Ben Laurie] 11083 11084 *) Updates to the new SSL compression code 11085 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11086 11087 *) Fix so that the version number in the master secret, when passed 11088 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 11089 (because the server will not accept higher), that the version number 11090 is 0x03,0x01, not 0x03,0x00 11091 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11092 11093 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 11094 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 11095 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 11096 [Steve Henson] 11097 11098 *) Support for RAW extensions where an arbitrary extension can be 11099 created by including its DER encoding. See apps/openssl.cnf for 11100 an example. 11101 [Steve Henson] 11102 11103 *) Make sure latest Perl versions don't interpret some generated C array 11104 code as Perl array code in the crypto/err/err_genc.pl script. 11105 [Lars Weber <3weber@informatik.uni-hamburg.de>] 11106 11107 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 11108 not many people have the assembler. Various Win32 compilation fixes and 11109 update to the INSTALL.W32 file with (hopefully) more accurate Win32 11110 build instructions. 11111 [Steve Henson] 11112 11113 *) Modify configure script 'Configure' to automatically create crypto/date.h 11114 file under Win32 and also build pem.h from pem.org. New script 11115 util/mkfiles.pl to create the MINFO file on environments that can't do a 11116 'make files': perl util/mkfiles.pl >MINFO should work. 11117 [Steve Henson] 11118 11119 *) Major rework of DES function declarations, in the pursuit of correctness 11120 and purity. As a result, many evil casts evaporated, and some weirdness, 11121 too. You may find this causes warnings in your code. Zapping your evil 11122 casts will probably fix them. Mostly. 11123 [Ben Laurie] 11124 11125 *) Fix for a typo in asn1.h. Bug fix to object creation script 11126 obj_dat.pl. It considered a zero in an object definition to mean 11127 "end of object": none of the objects in objects.h have any zeros 11128 so it wasn't spotted. 11129 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 11130 11131 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 11132 Masking (CBCM). In the absence of test vectors, the best I have been able 11133 to do is check that the decrypt undoes the encrypt, so far. Send me test 11134 vectors if you have them. 11135 [Ben Laurie] 11136 11137 *) Correct calculation of key length for export ciphers (too much space was 11138 allocated for null ciphers). This has not been tested! 11139 [Ben Laurie] 11140 11141 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 11142 message is now correct (it understands "crypto" and "ssl" on its 11143 command line). There is also now an "update" option. This will update 11144 the util/ssleay.num and util/libeay.num files with any new functions. 11145 If you do a: 11146 perl util/mkdef.pl crypto ssl update 11147 it will update them. 11148 [Steve Henson] 11149 11150 *) Overhauled the Perl interface (perl/*): 11151 - ported BN stuff to OpenSSL's different BN library 11152 - made the perl/ source tree CVS-aware 11153 - renamed the package from SSLeay to OpenSSL (the files still contain 11154 their history because I've copied them in the repository) 11155 - removed obsolete files (the test scripts will be replaced 11156 by better Test::Harness variants in the future) 11157 [Ralf S. Engelschall] 11158 11159 *) First cut for a very conservative source tree cleanup: 11160 1. merge various obsolete readme texts into doc/ssleay.txt 11161 where we collect the old documents and readme texts. 11162 2. remove the first part of files where I'm already sure that we no 11163 longer need them because of three reasons: either they are just temporary 11164 files which were left by Eric or they are preserved original files where 11165 I've verified that the diff is also available in the CVS via "cvs diff 11166 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 11167 the crypto/md/ stuff). 11168 [Ralf S. Engelschall] 11169 11170 *) More extension code. Incomplete support for subject and issuer alt 11171 name, issuer and authority key id. Change the i2v function parameters 11172 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 11173 what that's for :-) Fix to ASN1 macro which messed up 11174 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 11175 [Steve Henson] 11176 11177 *) Preliminary support for ENUMERATED type. This is largely copied from the 11178 INTEGER code. 11179 [Steve Henson] 11180 11181 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 11182 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11183 11184 *) Make sure `make rehash' target really finds the `openssl' program. 11185 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 11186 11187 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 11188 like to hear about it if this slows down other processors. 11189 [Ben Laurie] 11190 11191 *) Add CygWin32 platform information to Configure script. 11192 [Alan Batie <batie@aahz.jf.intel.com>] 11193 11194 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 11195 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 11196 11197 *) New program nseq to manipulate netscape certificate sequences 11198 [Steve Henson] 11199 11200 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 11201 few typos. 11202 [Steve Henson] 11203 11204 *) Fixes to BN code. Previously the default was to define BN_RECURSION 11205 but the BN code had some problems that would cause failures when 11206 doing certificate verification and some other functions. 11207 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 11208 11209 *) Add ASN1 and PEM code to support netscape certificate sequences. 11210 [Steve Henson] 11211 11212 *) Add ASN1 and PEM code to support netscape certificate sequences. 11213 [Steve Henson] 11214 11215 *) Add several PKIX and private extended key usage OIDs. 11216 [Steve Henson] 11217 11218 *) Modify the 'ca' program to handle the new extension code. Modify 11219 openssl.cnf for new extension format, add comments. 11220 [Steve Henson] 11221 11222 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 11223 and add a sample to openssl.cnf so req -x509 now adds appropriate 11224 CA extensions. 11225 [Steve Henson] 11226 11227 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 11228 error code, add initial support to X509_print() and x509 application. 11229 [Steve Henson] 11230 11231 *) Takes a deep breath and start addding X509 V3 extension support code. Add 11232 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 11233 stuff is currently isolated and isn't even compiled yet. 11234 [Steve Henson] 11235 11236 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 11237 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 11238 Removed the versions check from X509 routines when loading extensions: 11239 this allows certain broken certificates that don't set the version 11240 properly to be processed. 11241 [Steve Henson] 11242 11243 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 11244 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 11245 can still be regenerated with "make depend". 11246 [Ben Laurie] 11247 11248 *) Spelling mistake in C version of CAST-128. 11249 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 11250 11251 *) Changes to the error generation code. The perl script err-code.pl 11252 now reads in the old error codes and retains the old numbers, only 11253 adding new ones if necessary. It also only changes the .err files if new 11254 codes are added. The makefiles have been modified to only insert errors 11255 when needed (to avoid needlessly modifying header files). This is done 11256 by only inserting errors if the .err file is newer than the auto generated 11257 C file. To rebuild all the error codes from scratch (the old behaviour) 11258 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 11259 or delete all the .err files. 11260 [Steve Henson] 11261 11262 *) CAST-128 was incorrectly implemented for short keys. The C version has 11263 been fixed, but is untested. The assembler versions are also fixed, but 11264 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 11265 to regenerate it if needed. 11266 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 11267 Hagino <itojun@kame.net>] 11268 11269 *) File was opened incorrectly in randfile.c. 11270 [Ulf M��ller <ulf@fitug.de>] 11271 11272 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 11273 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 11274 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 11275 al: it's just almost always a UTCTime. Note this patch adds new error 11276 codes so do a "make errors" if there are problems. 11277 [Steve Henson] 11278 11279 *) Correct Linux 1 recognition in config. 11280 [Ulf M��ller <ulf@fitug.de>] 11281 11282 *) Remove pointless MD5 hash when using DSA keys in ca. 11283 [Anonymous <nobody@replay.com>] 11284 11285 *) Generate an error if given an empty string as a cert directory. Also 11286 generate an error if handed NULL (previously returned 0 to indicate an 11287 error, but didn't set one). 11288 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 11289 11290 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 11291 [Ben Laurie] 11292 11293 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 11294 parameters. This was causing a warning which killed off the Win32 compile. 11295 [Steve Henson] 11296 11297 *) Remove C++ style comments from crypto/bn/bn_local.h. 11298 [Neil Costigan <neil.costigan@celocom.com>] 11299 11300 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 11301 based on a text string, looking up short and long names and finally 11302 "dot" format. The "dot" format stuff didn't work. Added new function 11303 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 11304 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 11305 OID is not part of the table. 11306 [Steve Henson] 11307 11308 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 11309 X509_LOOKUP_by_alias(). 11310 [Ben Laurie] 11311 11312 *) Sort openssl functions by name. 11313 [Ben Laurie] 11314 11315 *) Get the gendsa program working (hopefully) and add it to app list. Remove 11316 encryption from sample DSA keys (in case anyone is interested the password 11317 was "1234"). 11318 [Steve Henson] 11319 11320 *) Make _all_ *_free functions accept a NULL pointer. 11321 [Frans Heymans <fheymans@isaserver.be>] 11322 11323 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 11324 NULL pointers. 11325 [Anonymous <nobody@replay.com>] 11326 11327 *) s_server should send the CAfile as acceptable CAs, not its own cert. 11328 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11329 11330 *) Don't blow it for numeric -newkey arguments to apps/req. 11331 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 11332 11333 *) Temp key "for export" tests were wrong in s3_srvr.c. 11334 [Anonymous <nobody@replay.com>] 11335 11336 *) Add prototype for temp key callback functions 11337 SSL_CTX_set_tmp_{rsa,dh}_callback(). 11338 [Ben Laurie] 11339 11340 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 11341 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 11342 [Steve Henson] 11343 11344 *) X509_name_add_entry() freed the wrong thing after an error. 11345 [Arne Ansper <arne@ats.cyber.ee>] 11346 11347 *) rsa_eay.c would attempt to free a NULL context. 11348 [Arne Ansper <arne@ats.cyber.ee>] 11349 11350 *) BIO_s_socket() had a broken should_retry() on Windoze. 11351 [Arne Ansper <arne@ats.cyber.ee>] 11352 11353 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 11354 [Arne Ansper <arne@ats.cyber.ee>] 11355 11356 *) Make sure the already existing X509_STORE->depth variable is initialized 11357 in X509_STORE_new(), but document the fact that this variable is still 11358 unused in the certificate verification process. 11359 [Ralf S. Engelschall] 11360 11361 *) Fix the various library and apps files to free up pkeys obtained from 11362 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 11363 [Steve Henson] 11364 11365 *) Fix reference counting in X509_PUBKEY_get(). This makes 11366 demos/maurice/example2.c work, amongst others, probably. 11367 [Steve Henson and Ben Laurie] 11368 11369 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 11370 `openssl' and second, the shortcut symlinks for the `openssl <command>' 11371 are no longer created. This way we have a single and consistent command 11372 line interface `openssl <command>', similar to `cvs <command>'. 11373 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 11374 11375 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 11376 BIT STRING wrapper always have zero unused bits. 11377 [Steve Henson] 11378 11379 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 11380 [Steve Henson] 11381 11382 *) Make the top-level INSTALL documentation easier to understand. 11383 [Paul Sutton] 11384 11385 *) Makefiles updated to exit if an error occurs in a sub-directory 11386 make (including if user presses ^C) [Paul Sutton] 11387 11388 *) Make Montgomery context stuff explicit in RSA data structure. 11389 [Ben Laurie] 11390 11391 *) Fix build order of pem and err to allow for generated pem.h. 11392 [Ben Laurie] 11393 11394 *) Fix renumbering bug in X509_NAME_delete_entry(). 11395 [Ben Laurie] 11396 11397 *) Enhanced the err-ins.pl script so it makes the error library number 11398 global and can add a library name. This is needed for external ASN1 and 11399 other error libraries. 11400 [Steve Henson] 11401 11402 *) Fixed sk_insert which never worked properly. 11403 [Steve Henson] 11404 11405 *) Fix ASN1 macros so they can handle indefinite length construted 11406 EXPLICIT tags. Some non standard certificates use these: they can now 11407 be read in. 11408 [Steve Henson] 11409 11410 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 11411 into a single doc/ssleay.txt bundle. This way the information is still 11412 preserved but no longer messes up this directory. Now it's new room for 11413 the new set of documenation files. 11414 [Ralf S. Engelschall] 11415 11416 *) SETs were incorrectly DER encoded. This was a major pain, because they 11417 shared code with SEQUENCEs, which aren't coded the same. This means that 11418 almost everything to do with SETs or SEQUENCEs has either changed name or 11419 number of arguments. 11420 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 11421 11422 *) Fix test data to work with the above. 11423 [Ben Laurie] 11424 11425 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 11426 was already fixed by Eric for 0.9.1 it seems. 11427 [Ben Laurie - pointed out by Ulf M��ller <ulf@fitug.de>] 11428 11429 *) Autodetect FreeBSD3. 11430 [Ben Laurie] 11431 11432 *) Fix various bugs in Configure. This affects the following platforms: 11433 nextstep 11434 ncr-scde 11435 unixware-2.0 11436 unixware-2.0-pentium 11437 sco5-cc. 11438 [Ben Laurie] 11439 11440 *) Eliminate generated files from CVS. Reorder tests to regenerate files 11441 before they are needed. 11442 [Ben Laurie] 11443 11444 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 11445 [Ben Laurie] 11446 11447 11448 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 11449 11450 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 11451 changed SSLeay to OpenSSL in version strings. 11452 [Ralf S. Engelschall] 11453 11454 *) Some fixups to the top-level documents. 11455 [Paul Sutton] 11456 11457 *) Fixed the nasty bug where rsaref.h was not found under compile-time 11458 because the symlink to include/ was missing. 11459 [Ralf S. Engelschall] 11460 11461 *) Incorporated the popular no-RSA/DSA-only patches 11462 which allow to compile a RSA-free SSLeay. 11463 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 11464 11465 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 11466 when "ssleay" is still not found. 11467 [Ralf S. Engelschall] 11468 11469 *) Added more platforms to Configure: Cray T3E, HPUX 11, 11470 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 11471 11472 *) Updated the README file. 11473 [Ralf S. Engelschall] 11474 11475 *) Added various .cvsignore files in the CVS repository subdirs 11476 to make a "cvs update" really silent. 11477 [Ralf S. Engelschall] 11478 11479 *) Recompiled the error-definition header files and added 11480 missing symbols to the Win32 linker tables. 11481 [Ralf S. Engelschall] 11482 11483 *) Cleaned up the top-level documents; 11484 o new files: CHANGES and LICENSE 11485 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 11486 o merged COPYRIGHT into LICENSE 11487 o removed obsolete TODO file 11488 o renamed MICROSOFT to INSTALL.W32 11489 [Ralf S. Engelschall] 11490 11491 *) Removed dummy files from the 0.9.1b source tree: 11492 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 11493 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 11494 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 11495 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 11496 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 11497 [Ralf S. Engelschall] 11498 11499 *) Added various platform portability fixes. 11500 [Mark J. Cox] 11501 11502 *) The Genesis of the OpenSSL rpject: 11503 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 11504 Young and Tim J. Hudson created while they were working for C2Net until 11505 summer 1998. 11506 [The OpenSSL Project] 11507 11508 11509 Changes between 0.9.0b and 0.9.1b [not released] 11510 11511 *) Updated a few CA certificates under certs/ 11512 [Eric A. Young] 11513 11514 *) Changed some BIGNUM api stuff. 11515 [Eric A. Young] 11516 11517 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 11518 DGUX x86, Linux Alpha, etc. 11519 [Eric A. Young] 11520 11521 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 11522 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 11523 available). 11524 [Eric A. Young] 11525 11526 *) Add -strparse option to asn1pars program which parses nested 11527 binary structures 11528 [Dr Stephen Henson <shenson@bigfoot.com>] 11529 11530 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 11531 [Eric A. Young] 11532 11533 *) DSA fix for "ca" program. 11534 [Eric A. Young] 11535 11536 *) Added "-genkey" option to "dsaparam" program. 11537 [Eric A. Young] 11538 11539 *) Added RIPE MD160 (rmd160) message digest. 11540 [Eric A. Young] 11541 11542 *) Added -a (all) option to "ssleay version" command. 11543 [Eric A. Young] 11544 11545 *) Added PLATFORM define which is the id given to Configure. 11546 [Eric A. Young] 11547 11548 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 11549 [Eric A. Young] 11550 11551 *) Extended the ASN.1 parser routines. 11552 [Eric A. Young] 11553 11554 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 11555 [Eric A. Young] 11556 11557 *) Added a BN_CTX to the BN library. 11558 [Eric A. Young] 11559 11560 *) Fixed the weak key values in DES library 11561 [Eric A. Young] 11562 11563 *) Changed API in EVP library for cipher aliases. 11564 [Eric A. Young] 11565 11566 *) Added support for RC2/64bit cipher. 11567 [Eric A. Young] 11568 11569 *) Converted the lhash library to the crypto/mem.c functions. 11570 [Eric A. Young] 11571 11572 *) Added more recognized ASN.1 object ids. 11573 [Eric A. Young] 11574 11575 *) Added more RSA padding checks for SSL/TLS. 11576 [Eric A. Young] 11577 11578 *) Added BIO proxy/filter functionality. 11579 [Eric A. Young] 11580 11581 *) Added extra_certs to SSL_CTX which can be used 11582 send extra CA certificates to the client in the CA cert chain sending 11583 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 11584 [Eric A. Young] 11585 11586 *) Now Fortezza is denied in the authentication phase because 11587 this is key exchange mechanism is not supported by SSLeay at all. 11588 [Eric A. Young] 11589 11590 *) Additional PKCS1 checks. 11591 [Eric A. Young] 11592 11593 *) Support the string "TLSv1" for all TLS v1 ciphers. 11594 [Eric A. Young] 11595 11596 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 11597 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 11598 [Eric A. Young] 11599 11600 *) Fixed a few memory leaks. 11601 [Eric A. Young] 11602 11603 *) Fixed various code and comment typos. 11604 [Eric A. Young] 11605 11606 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 11607 bytes sent in the client random. 11608 [Edward Bishop <ebishop@spyglass.com>] 11609 11610