CHANGES revision 296341
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 6 7 *) Alternate chains certificate forgery 8 9 During certificate verfification, OpenSSL will attempt to find an 10 alternative certificate chain if the first attempt to build such a chain 11 fails. An error in the implementation of this logic can mean that an 12 attacker could cause certain checks on untrusted certificates to be 13 bypassed, such as the CA flag, enabling them to use a valid leaf 14 certificate to act as a CA and "issue" an invalid certificate. 15 16 This issue was reported to OpenSSL by Adam Langley/David Benjamin 17 (Google/BoringSSL). 18 [Matt Caswell] 19 20 Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 21 22 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 23 incompatibility in the handling of HMAC. The previous ABI has now been 24 restored. 25 26 Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 27 28 *) Malformed ECParameters causes infinite loop 29 30 When processing an ECParameters structure OpenSSL enters an infinite loop 31 if the curve specified is over a specially malformed binary polynomial 32 field. 33 34 This can be used to perform denial of service against any 35 system which processes public keys, certificate requests or 36 certificates. This includes TLS clients and TLS servers with 37 client authentication enabled. 38 39 This issue was reported to OpenSSL by Joseph Barr-Pixton. 40 (CVE-2015-1788) 41 [Andy Polyakov] 42 43 *) Exploitable out-of-bounds read in X509_cmp_time 44 45 X509_cmp_time does not properly check the length of the ASN1_TIME 46 string and can read a few bytes out of bounds. In addition, 47 X509_cmp_time accepts an arbitrary number of fractional seconds in the 48 time string. 49 50 An attacker can use this to craft malformed certificates and CRLs of 51 various sizes and potentially cause a segmentation fault, resulting in 52 a DoS on applications that verify certificates or CRLs. TLS clients 53 that verify CRLs are affected. TLS clients and servers with client 54 authentication enabled may be affected if they use custom verification 55 callbacks. 56 57 This issue was reported to OpenSSL by Robert Swiecki (Google), and 58 independently by Hanno B�ck. 59 (CVE-2015-1789) 60 [Emilia K�sper] 61 62 *) PKCS7 crash with missing EnvelopedContent 63 64 The PKCS#7 parsing code does not handle missing inner EncryptedContent 65 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 66 with missing content and trigger a NULL pointer dereference on parsing. 67 68 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 69 structures from untrusted sources are affected. OpenSSL clients and 70 servers are not affected. 71 72 This issue was reported to OpenSSL by Michal Zalewski (Google). 73 (CVE-2015-1790) 74 [Emilia K�sper] 75 76 *) CMS verify infinite loop with unknown hash function 77 78 When verifying a signedData message the CMS code can enter an infinite loop 79 if presented with an unknown hash function OID. This can be used to perform 80 denial of service against any system which verifies signedData messages using 81 the CMS code. 82 This issue was reported to OpenSSL by Johannes Bauer. 83 (CVE-2015-1792) 84 [Stephen Henson] 85 86 *) Race condition handling NewSessionTicket 87 88 If a NewSessionTicket is received by a multi-threaded client when attempting to 89 reuse a previous ticket then a race condition can occur potentially leading to 90 a double free of the ticket data. 91 (CVE-2015-1791) 92 [Matt Caswell] 93 94 *) Reject DH handshakes with parameters shorter than 768 bits. 95 [Kurt Roeckx and Emilia Kasper] 96 97 Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 98 99 *) Segmentation fault in ASN1_TYPE_cmp fix 100 101 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 102 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 103 certificate signature algorithm consistency this can be used to crash any 104 certificate verification operation and exploited in a DoS attack. Any 105 application which performs certificate verification is vulnerable including 106 OpenSSL clients and servers which enable client authentication. 107 (CVE-2015-0286) 108 [Stephen Henson] 109 110 *) ASN.1 structure reuse memory corruption fix 111 112 Reusing a structure in ASN.1 parsing may allow an attacker to cause 113 memory corruption via an invalid write. Such reuse is and has been 114 strongly discouraged and is believed to be rare. 115 116 Applications that parse structures containing CHOICE or ANY DEFINED BY 117 components may be affected. Certificate parsing (d2i_X509 and related 118 functions) are however not affected. OpenSSL clients and servers are 119 not affected. 120 (CVE-2015-0287) 121 [Stephen Henson] 122 123 *) PKCS7 NULL pointer dereferences fix 124 125 The PKCS#7 parsing code does not handle missing outer ContentInfo 126 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 127 missing content and trigger a NULL pointer dereference on parsing. 128 129 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 130 otherwise parse PKCS#7 structures from untrusted sources are 131 affected. OpenSSL clients and servers are not affected. 132 133 This issue was reported to OpenSSL by Michal Zalewski (Google). 134 (CVE-2015-0289) 135 [Emilia K�sper] 136 137 *) DoS via reachable assert in SSLv2 servers fix 138 139 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 140 servers that both support SSLv2 and enable export cipher suites by sending 141 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 142 143 This issue was discovered by Sean Burford (Google) and Emilia K�sper 144 (OpenSSL development team). 145 (CVE-2015-0293) 146 [Emilia K�sper] 147 148 *) Use After Free following d2i_ECPrivatekey error fix 149 150 A malformed EC private key file consumed via the d2i_ECPrivateKey function 151 could cause a use after free condition. This, in turn, could cause a double 152 free in several private key parsing functions (such as d2i_PrivateKey 153 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 154 for applications that receive EC private keys from untrusted 155 sources. This scenario is considered rare. 156 157 This issue was discovered by the BoringSSL project and fixed in their 158 commit 517073cd4b. 159 (CVE-2015-0209) 160 [Matt Caswell] 161 162 *) X509_to_X509_REQ NULL pointer deref fix 163 164 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 165 the certificate key is invalid. This function is rarely used in practice. 166 167 This issue was discovered by Brian Carpenter. 168 (CVE-2015-0288) 169 [Stephen Henson] 170 171 *) Removed the export ciphers from the DEFAULT ciphers 172 [Kurt Roeckx] 173 174 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 175 176 *) Build fixes for the Windows and OpenVMS platforms 177 [Matt Caswell and Richard Levitte] 178 179 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 180 181 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 182 message can cause a segmentation fault in OpenSSL due to a NULL pointer 183 dereference. This could lead to a Denial Of Service attack. Thanks to 184 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 185 (CVE-2014-3571) 186 [Steve Henson] 187 188 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 189 dtls1_buffer_record function under certain conditions. In particular this 190 could occur if an attacker sent repeated DTLS records with the same 191 sequence number but for the next epoch. The memory leak could be exploited 192 by an attacker in a Denial of Service attack through memory exhaustion. 193 Thanks to Chris Mueller for reporting this issue. 194 (CVE-2015-0206) 195 [Matt Caswell] 196 197 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 198 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 199 method would be set to NULL which could later result in a NULL pointer 200 dereference. Thanks to Frank Schmirler for reporting this issue. 201 (CVE-2014-3569) 202 [Kurt Roeckx] 203 204 *) Abort handshake if server key exchange message is omitted for ephemeral 205 ECDH ciphersuites. 206 207 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 208 reporting this issue. 209 (CVE-2014-3572) 210 [Steve Henson] 211 212 *) Remove non-export ephemeral RSA code on client and server. This code 213 violated the TLS standard by allowing the use of temporary RSA keys in 214 non-export ciphersuites and could be used by a server to effectively 215 downgrade the RSA key length used to a value smaller than the server 216 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 217 INRIA or reporting this issue. 218 (CVE-2015-0204) 219 [Steve Henson] 220 221 *) Fixed issue where DH client certificates are accepted without verification. 222 An OpenSSL server will accept a DH certificate for client authentication 223 without the certificate verify message. This effectively allows a client to 224 authenticate without the use of a private key. This only affects servers 225 which trust a client certificate authority which issues certificates 226 containing DH keys: these are extremely rare and hardly ever encountered. 227 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 228 this issue. 229 (CVE-2015-0205) 230 [Steve Henson] 231 232 *) Ensure that the session ID context of an SSL is updated when its 233 SSL_CTX is updated via SSL_set_SSL_CTX. 234 235 The session ID context is typically set from the parent SSL_CTX, 236 and can vary with the CTX. 237 [Adam Langley] 238 239 *) Fix various certificate fingerprint issues. 240 241 By using non-DER or invalid encodings outside the signed portion of a 242 certificate the fingerprint can be changed without breaking the signature. 243 Although no details of the signed portion of the certificate can be changed 244 this can cause problems with some applications: e.g. those using the 245 certificate fingerprint for blacklists. 246 247 1. Reject signatures with non zero unused bits. 248 249 If the BIT STRING containing the signature has non zero unused bits reject 250 the signature. All current signature algorithms require zero unused bits. 251 252 2. Check certificate algorithm consistency. 253 254 Check the AlgorithmIdentifier inside TBS matches the one in the 255 certificate signature. NB: this will result in signature failure 256 errors for some broken certificates. 257 258 Thanks to Konrad Kraszewski from Google for reporting this issue. 259 260 3. Check DSA/ECDSA signatures use DER. 261 262 Reencode DSA/ECDSA signatures and compare with the original received 263 signature. Return an error if there is a mismatch. 264 265 This will reject various cases including garbage after signature 266 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 267 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 268 (negative or with leading zeroes). 269 270 Further analysis was conducted and fixes were developed by Stephen Henson 271 of the OpenSSL core team. 272 273 (CVE-2014-8275) 274 [Steve Henson] 275 276 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 277 results on some platforms, including x86_64. This bug occurs at random 278 with a very low probability, and is not known to be exploitable in any 279 way, though its exact impact is difficult to determine. Thanks to Pieter 280 Wuille (Blockstream) who reported this issue and also suggested an initial 281 fix. Further analysis was conducted by the OpenSSL development team and 282 Adam Langley of Google. The final fix was developed by Andy Polyakov of 283 the OpenSSL core team. 284 (CVE-2014-3570) 285 [Andy Polyakov] 286 287 *) Do not resume sessions on the server if the negotiated protocol 288 version does not match the session's version. Resuming with a different 289 version, while not strictly forbidden by the RFC, is of questionable 290 sanity and breaks all known clients. 291 [David Benjamin, Emilia K�sper] 292 293 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 294 early CCS messages during renegotiation. (Note that because 295 renegotiation is encrypted, this early CCS was not exploitable.) 296 [Emilia K�sper] 297 298 *) Tighten client-side session ticket handling during renegotiation: 299 ensure that the client only accepts a session ticket if the server sends 300 the extension anew in the ServerHello. Previously, a TLS client would 301 reuse the old extension state and thus accept a session ticket if one was 302 announced in the initial ServerHello. 303 304 Similarly, ensure that the client requires a session ticket if one 305 was advertised in the ServerHello. Previously, a TLS client would 306 ignore a missing NewSessionTicket message. 307 [Emilia K�sper] 308 309 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 310 311 *) SRTP Memory Leak. 312 313 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 314 sends a carefully crafted handshake message, to cause OpenSSL to fail 315 to free up to 64k of memory causing a memory leak. This could be 316 exploited in a Denial Of Service attack. This issue affects OpenSSL 317 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 318 whether SRTP is used or configured. Implementations of OpenSSL that 319 have been compiled with OPENSSL_NO_SRTP defined are not affected. 320 321 The fix was developed by the OpenSSL team. 322 (CVE-2014-3513) 323 [OpenSSL team] 324 325 *) Session Ticket Memory Leak. 326 327 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 328 integrity of that ticket is first verified. In the event of a session 329 ticket integrity check failing, OpenSSL will fail to free memory 330 causing a memory leak. By sending a large number of invalid session 331 tickets an attacker could exploit this issue in a Denial Of Service 332 attack. 333 (CVE-2014-3567) 334 [Steve Henson] 335 336 *) Build option no-ssl3 is incomplete. 337 338 When OpenSSL is configured with "no-ssl3" as a build option, servers 339 could accept and complete a SSL 3.0 handshake, and clients could be 340 configured to send them. 341 (CVE-2014-3568) 342 [Akamai and the OpenSSL team] 343 344 *) Add support for TLS_FALLBACK_SCSV. 345 Client applications doing fallback retries should call 346 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 347 (CVE-2014-3566) 348 [Adam Langley, Bodo Moeller] 349 350 *) Add additional DigestInfo checks. 351 352 Reencode DigestInto in DER and check against the original when 353 verifying RSA signature: this will reject any improperly encoded 354 DigestInfo structures. 355 356 Note: this is a precautionary measure and no attacks are currently known. 357 358 [Steve Henson] 359 360 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 361 362 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 363 SRP code can be overrun an internal buffer. Add sanity check that 364 g, A, B < N to SRP code. 365 366 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 367 Group for discovering this issue. 368 (CVE-2014-3512) 369 [Steve Henson] 370 371 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 372 TLS 1.0 instead of higher protocol versions when the ClientHello message 373 is badly fragmented. This allows a man-in-the-middle attacker to force a 374 downgrade to TLS 1.0 even if both the server and the client support a 375 higher protocol version, by modifying the client's TLS records. 376 377 Thanks to David Benjamin and Adam Langley (Google) for discovering and 378 researching this issue. 379 (CVE-2014-3511) 380 [David Benjamin] 381 382 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 383 to a denial of service attack. A malicious server can crash the client 384 with a null pointer dereference (read) by specifying an anonymous (EC)DH 385 ciphersuite and sending carefully crafted handshake messages. 386 387 Thanks to Felix Gr�bert (Google) for discovering and researching this 388 issue. 389 (CVE-2014-3510) 390 [Emilia K�sper] 391 392 *) By sending carefully crafted DTLS packets an attacker could cause openssl 393 to leak memory. This can be exploited through a Denial of Service attack. 394 Thanks to Adam Langley for discovering and researching this issue. 395 (CVE-2014-3507) 396 [Adam Langley] 397 398 *) An attacker can force openssl to consume large amounts of memory whilst 399 processing DTLS handshake messages. This can be exploited through a 400 Denial of Service attack. 401 Thanks to Adam Langley for discovering and researching this issue. 402 (CVE-2014-3506) 403 [Adam Langley] 404 405 *) An attacker can force an error condition which causes openssl to crash 406 whilst processing DTLS packets due to memory being freed twice. This 407 can be exploited through a Denial of Service attack. 408 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 409 this issue. 410 (CVE-2014-3505) 411 [Adam Langley] 412 413 *) If a multithreaded client connects to a malicious server using a resumed 414 session and the server sends an ec point format extension it could write 415 up to 255 bytes to freed memory. 416 417 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 418 issue. 419 (CVE-2014-3509) 420 [Gabor Tyukasz] 421 422 *) A malicious server can crash an OpenSSL client with a null pointer 423 dereference (read) by specifying an SRP ciphersuite even though it was not 424 properly negotiated with the client. This can be exploited through a 425 Denial of Service attack. 426 427 Thanks to Joonas Kuorilehto and Riku Hietam�ki (Codenomicon) for 428 discovering and researching this issue. 429 (CVE-2014-5139) 430 [Steve Henson] 431 432 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 433 X509_name_oneline, X509_name_print_ex et al. to leak some information 434 from the stack. Applications may be affected if they echo pretty printing 435 output to the attacker. 436 437 Thanks to Ivan Fratric (Google) for discovering this issue. 438 (CVE-2014-3508) 439 [Emilia K�sper, and Steve Henson] 440 441 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 442 for corner cases. (Certain input points at infinity could lead to 443 bogus results, with non-infinity inputs mapped to infinity too.) 444 [Bodo Moeller] 445 446 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 447 448 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 449 handshake can force the use of weak keying material in OpenSSL 450 SSL/TLS clients and servers. 451 452 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 453 researching this issue. (CVE-2014-0224) 454 [KIKUCHI Masashi, Steve Henson] 455 456 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 457 OpenSSL DTLS client the code can be made to recurse eventually crashing 458 in a DoS attack. 459 460 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 461 (CVE-2014-0221) 462 [Imre Rad, Steve Henson] 463 464 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 465 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 466 client or server. This is potentially exploitable to run arbitrary 467 code on a vulnerable client or server. 468 469 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 470 [J�ri Aedla, Steve Henson] 471 472 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 473 are subject to a denial of service attack. 474 475 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 476 this issue. (CVE-2014-3470) 477 [Felix Gr�bert, Ivan Fratric, Steve Henson] 478 479 *) Harmonize version and its documentation. -f flag is used to display 480 compilation flags. 481 [mancha <mancha1@zoho.com>] 482 483 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 484 in i2d_ECPrivateKey. 485 [mancha <mancha1@zoho.com>] 486 487 *) Fix some double frees. These are not thought to be exploitable. 488 [mancha <mancha1@zoho.com>] 489 490 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 491 492 *) A missing bounds check in the handling of the TLS heartbeat extension 493 can be used to reveal up to 64k of memory to a connected client or 494 server. 495 496 Thanks for Neel Mehta of Google Security for discovering this bug and to 497 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 498 preparing the fix (CVE-2014-0160) 499 [Adam Langley, Bodo Moeller] 500 501 *) Fix for the attack described in the paper "Recovering OpenSSL 502 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 503 by Yuval Yarom and Naomi Benger. Details can be obtained from: 504 http://eprint.iacr.org/2014/140 505 506 Thanks to Yuval Yarom and Naomi Benger for discovering this 507 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 508 [Yuval Yarom and Naomi Benger] 509 510 *) TLS pad extension: draft-agl-tls-padding-03 511 512 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 513 TLS client Hello record length value would otherwise be > 255 and 514 less that 512 pad with a dummy extension containing zeroes so it 515 is at least 512 bytes long. 516 517 [Adam Langley, Steve Henson] 518 519 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 520 521 *) Fix for TLS record tampering bug. A carefully crafted invalid 522 handshake could crash OpenSSL with a NULL pointer exception. 523 Thanks to Anton Johansson for reporting this issues. 524 (CVE-2013-4353) 525 526 *) Keep original DTLS digest and encryption contexts in retransmission 527 structures so we can use the previous session parameters if they need 528 to be resent. (CVE-2013-6450) 529 [Steve Henson] 530 531 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 532 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 533 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 534 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 535 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 536 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 537 [Rob Stradling, Adam Langley] 538 539 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 540 541 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 542 supporting platforms or when small records were transferred. 543 [Andy Polyakov, Steve Henson] 544 545 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 546 547 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 548 549 This addresses the flaw in CBC record processing discovered by 550 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 551 at: http://www.isg.rhul.ac.uk/tls/ 552 553 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 554 Security Group at Royal Holloway, University of London 555 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 556 Emilia K�sper for the initial patch. 557 (CVE-2013-0169) 558 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 559 560 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 561 ciphersuites which can be exploited in a denial of service attack. 562 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 563 and detecting this bug and to Wolfgang Ettlinger 564 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 565 (CVE-2012-2686) 566 [Adam Langley] 567 568 *) Return an error when checking OCSP signatures when key is NULL. 569 This fixes a DoS attack. (CVE-2013-0166) 570 [Steve Henson] 571 572 *) Make openssl verify return errors. 573 [Chris Palmer <palmer@google.com> and Ben Laurie] 574 575 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 576 the right response is stapled. Also change SSL_get_certificate() 577 so it returns the certificate actually sent. 578 See http://rt.openssl.org/Ticket/Display.html?id=2836. 579 [Rob Stradling <rob.stradling@comodo.com>] 580 581 *) Fix possible deadlock when decoding public keys. 582 [Steve Henson] 583 584 *) Don't use TLS 1.0 record version number in initial client hello 585 if renegotiating. 586 [Steve Henson] 587 588 Changes between 1.0.1b and 1.0.1c [10 May 2012] 589 590 *) Sanity check record length before skipping explicit IV in TLS 591 1.2, 1.1 and DTLS to fix DoS attack. 592 593 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 594 fuzzing as a service testing platform. 595 (CVE-2012-2333) 596 [Steve Henson] 597 598 *) Initialise tkeylen properly when encrypting CMS messages. 599 Thanks to Solar Designer of Openwall for reporting this issue. 600 [Steve Henson] 601 602 *) In FIPS mode don't try to use composite ciphers as they are not 603 approved. 604 [Steve Henson] 605 606 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 607 608 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 609 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 610 mean any application compiled against OpenSSL 1.0.0 headers setting 611 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 612 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 613 0x10000000L Any application which was previously compiled against 614 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 615 will need to be recompiled as a result. Letting be results in 616 inability to disable specifically TLS 1.1 and in client context, 617 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 618 [Steve Henson] 619 620 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 621 disable just protocol X, but all protocols above X *if* there are 622 protocols *below* X still enabled. In more practical terms it means 623 that if application wants to disable TLS1.0 in favor of TLS1.1 and 624 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 625 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 626 client side. 627 [Andy Polyakov] 628 629 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 630 631 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 632 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 633 in CRYPTO_realloc_clean. 634 635 Thanks to Tavis Ormandy, Google Security Team, for discovering this 636 issue and to Adam Langley <agl@chromium.org> for fixing it. 637 (CVE-2012-2110) 638 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 639 640 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 641 [Adam Langley] 642 643 *) Workarounds for some broken servers that "hang" if a client hello 644 record length exceeds 255 bytes. 645 646 1. Do not use record version number > TLS 1.0 in initial client 647 hello: some (but not all) hanging servers will now work. 648 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 649 the number of ciphers sent in the client hello. This should be 650 set to an even number, such as 50, for example by passing: 651 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 652 Most broken servers should now work. 653 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 654 TLS 1.2 client support entirely. 655 [Steve Henson] 656 657 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 658 [Andy Polyakov] 659 660 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 661 662 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 663 STRING form instead of a DigestInfo. 664 [Steve Henson] 665 666 *) The format used for MDC2 RSA signatures is inconsistent between EVP 667 and the RSA_sign/RSA_verify functions. This was made more apparent when 668 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 669 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 670 the correct format in RSA_verify so both forms transparently work. 671 [Steve Henson] 672 673 *) Some servers which support TLS 1.0 can choke if we initially indicate 674 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 675 encrypted premaster secret. As a workaround use the maximum pemitted 676 client version in client hello, this should keep such servers happy 677 and still work with previous versions of OpenSSL. 678 [Steve Henson] 679 680 *) Add support for TLS/DTLS heartbeats. 681 [Robin Seggelmann <seggelmann@fh-muenster.de>] 682 683 *) Add support for SCTP. 684 [Robin Seggelmann <seggelmann@fh-muenster.de>] 685 686 *) Improved PRNG seeding for VOS. 687 [Paul Green <Paul.Green@stratus.com>] 688 689 *) Extensive assembler packs updates, most notably: 690 691 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 692 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 693 - x86_64: bit-sliced AES implementation; 694 - ARM: NEON support, contemporary platforms optimizations; 695 - s390x: z196 support; 696 - *: GHASH and GF(2^m) multiplication implementations; 697 698 [Andy Polyakov] 699 700 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 701 (removal of unnecessary code) 702 [Peter Sylvester <peter.sylvester@edelweb.fr>] 703 704 *) Add TLS key material exporter from RFC 5705. 705 [Eric Rescorla] 706 707 *) Add DTLS-SRTP negotiation from RFC 5764. 708 [Eric Rescorla] 709 710 *) Add Next Protocol Negotiation, 711 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 712 disabled with a no-npn flag to config or Configure. Code donated 713 by Google. 714 [Adam Langley <agl@google.com> and Ben Laurie] 715 716 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 717 NIST-P256, NIST-P521, with constant-time single point multiplication on 718 typical inputs. Compiler support for the nonstandard type __uint128_t is 719 required to use this (present in gcc 4.4 and later, for 64-bit builds). 720 Code made available under Apache License version 2.0. 721 722 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 723 line to include this in your build of OpenSSL, and run "make depend" (or 724 "make update"). This enables the following EC_METHODs: 725 726 EC_GFp_nistp224_method() 727 EC_GFp_nistp256_method() 728 EC_GFp_nistp521_method() 729 730 EC_GROUP_new_by_curve_name() will automatically use these (while 731 EC_GROUP_new_curve_GFp() currently prefers the more flexible 732 implementations). 733 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 734 735 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 736 all platforms. Move ssize_t definition from e_os.h to the public 737 header file e_os2.h as it now appears in public header file cms.h 738 [Steve Henson] 739 740 *) New -sigopt option to the ca, req and x509 utilities. Additional 741 signature parameters can be passed using this option and in 742 particular PSS. 743 [Steve Henson] 744 745 *) Add RSA PSS signing function. This will generate and set the 746 appropriate AlgorithmIdentifiers for PSS based on those in the 747 corresponding EVP_MD_CTX structure. No application support yet. 748 [Steve Henson] 749 750 *) Support for companion algorithm specific ASN1 signing routines. 751 New function ASN1_item_sign_ctx() signs a pre-initialised 752 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 753 the appropriate parameters. 754 [Steve Henson] 755 756 *) Add new algorithm specific ASN1 verification initialisation function 757 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 758 handling will be the same no matter what EVP_PKEY_METHOD is used. 759 Add a PSS handler to support verification of PSS signatures: checked 760 against a number of sample certificates. 761 [Steve Henson] 762 763 *) Add signature printing for PSS. Add PSS OIDs. 764 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 765 766 *) Add algorithm specific signature printing. An individual ASN1 method 767 can now print out signatures instead of the standard hex dump. 768 769 More complex signatures (e.g. PSS) can print out more meaningful 770 information. Include DSA version that prints out the signature 771 parameters r, s. 772 [Steve Henson] 773 774 *) Password based recipient info support for CMS library: implementing 775 RFC3211. 776 [Steve Henson] 777 778 *) Split password based encryption into PBES2 and PBKDF2 functions. This 779 neatly separates the code into cipher and PBE sections and is required 780 for some algorithms that split PBES2 into separate pieces (such as 781 password based CMS). 782 [Steve Henson] 783 784 *) Session-handling fixes: 785 - Fix handling of connections that are resuming with a session ID, 786 but also support Session Tickets. 787 - Fix a bug that suppressed issuing of a new ticket if the client 788 presented a ticket with an expired session. 789 - Try to set the ticket lifetime hint to something reasonable. 790 - Make tickets shorter by excluding irrelevant information. 791 - On the client side, don't ignore renewed tickets. 792 [Adam Langley, Bodo Moeller (Google)] 793 794 *) Fix PSK session representation. 795 [Bodo Moeller] 796 797 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 798 799 This work was sponsored by Intel. 800 [Andy Polyakov] 801 802 *) Add GCM support to TLS library. Some custom code is needed to split 803 the IV between the fixed (from PRF) and explicit (from TLS record) 804 portions. This adds all GCM ciphersuites supported by RFC5288 and 805 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 806 add a special AESGCM string for GCM only. 807 [Steve Henson] 808 809 *) Expand range of ctrls for AES GCM. Permit setting invocation 810 field on decrypt and retrieval of invocation field only on encrypt. 811 [Steve Henson] 812 813 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 814 As required by RFC5289 these ciphersuites cannot be used if for 815 versions of TLS earlier than 1.2. 816 [Steve Henson] 817 818 *) For FIPS capable OpenSSL interpret a NULL default public key method 819 as unset and return the appopriate default but do *not* set the default. 820 This means we can return the appopriate method in applications that 821 swicth between FIPS and non-FIPS modes. 822 [Steve Henson] 823 824 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 825 ENGINE is used then we cannot handle that in the FIPS module so we 826 keep original code iff non-FIPS operations are allowed. 827 [Steve Henson] 828 829 *) Add -attime option to openssl utilities. 830 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 831 832 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 833 [Steve Henson] 834 835 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 836 FIPS EC methods unconditionally for now. 837 [Steve Henson] 838 839 *) New build option no-ec2m to disable characteristic 2 code. 840 [Steve Henson] 841 842 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 843 all cases can be covered as some introduce binary incompatibilities. 844 [Steve Henson] 845 846 *) Redirect RSA operations to FIPS module including keygen, 847 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 848 [Steve Henson] 849 850 *) Add similar low level API blocking to ciphers. 851 [Steve Henson] 852 853 *) Low level digest APIs are not approved in FIPS mode: any attempt 854 to use these will cause a fatal error. Applications that *really* want 855 to use them can use the private_* version instead. 856 [Steve Henson] 857 858 *) Redirect cipher operations to FIPS module for FIPS builds. 859 [Steve Henson] 860 861 *) Redirect digest operations to FIPS module for FIPS builds. 862 [Steve Henson] 863 864 *) Update build system to add "fips" flag which will link in fipscanister.o 865 for static and shared library builds embedding a signature if needed. 866 [Steve Henson] 867 868 *) Output TLS supported curves in preference order instead of numerical 869 order. This is currently hardcoded for the highest order curves first. 870 This should be configurable so applications can judge speed vs strength. 871 [Steve Henson] 872 873 *) Add TLS v1.2 server support for client authentication. 874 [Steve Henson] 875 876 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 877 and enable MD5. 878 [Steve Henson] 879 880 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 881 FIPS modules versions. 882 [Steve Henson] 883 884 *) Add TLS v1.2 client side support for client authentication. Keep cache 885 of handshake records longer as we don't know the hash algorithm to use 886 until after the certificate request message is received. 887 [Steve Henson] 888 889 *) Initial TLS v1.2 client support. Add a default signature algorithms 890 extension including all the algorithms we support. Parse new signature 891 format in client key exchange. Relax some ECC signing restrictions for 892 TLS v1.2 as indicated in RFC5246. 893 [Steve Henson] 894 895 *) Add server support for TLS v1.2 signature algorithms extension. Switch 896 to new signature format when needed using client digest preference. 897 All server ciphersuites should now work correctly in TLS v1.2. No client 898 support yet and no support for client certificates. 899 [Steve Henson] 900 901 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 902 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 903 ciphersuites. At present only RSA key exchange ciphersuites work with 904 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 905 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 906 and version checking. 907 [Steve Henson] 908 909 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 910 with this defined it will not be affected by any changes to ssl internal 911 structures. Add several utility functions to allow openssl application 912 to work with OPENSSL_NO_SSL_INTERN defined. 913 [Steve Henson] 914 915 *) Add SRP support. 916 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 917 918 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 919 [Steve Henson] 920 921 *) Permit abbreviated handshakes when renegotiating using the function 922 SSL_renegotiate_abbreviated(). 923 [Robin Seggelmann <seggelmann@fh-muenster.de>] 924 925 *) Add call to ENGINE_register_all_complete() to 926 ENGINE_load_builtin_engines(), so some implementations get used 927 automatically instead of needing explicit application support. 928 [Steve Henson] 929 930 *) Add support for TLS key exporter as described in RFC5705. 931 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 932 933 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 934 a few changes are required: 935 936 Add SSL_OP_NO_TLSv1_1 flag. 937 Add TLSv1_1 methods. 938 Update version checking logic to handle version 1.1. 939 Add explicit IV handling (ported from DTLS code). 940 Add command line options to s_client/s_server. 941 [Steve Henson] 942 943 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 944 945 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 946 in CMS and PKCS7 code. When RSA decryption fails use a random key for 947 content decryption and always return the same error. Note: this attack 948 needs on average 2^20 messages so it only affects automated senders. The 949 old behaviour can be reenabled in the CMS code by setting the 950 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 951 an MMA defence is not necessary. 952 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 953 this issue. (CVE-2012-0884) 954 [Steve Henson] 955 956 *) Fix CVE-2011-4619: make sure we really are receiving a 957 client hello before rejecting multiple SGC restarts. Thanks to 958 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 959 [Steve Henson] 960 961 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 962 963 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 964 Thanks to Antonio Martin, Enterprise Secure Access Research and 965 Development, Cisco Systems, Inc. for discovering this bug and 966 preparing a fix. (CVE-2012-0050) 967 [Antonio Martin] 968 969 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 970 971 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 972 of the Vaudenay padding oracle attack on CBC mode encryption 973 which enables an efficient plaintext recovery attack against 974 the OpenSSL implementation of DTLS. Their attack exploits timing 975 differences arising during decryption processing. A research 976 paper describing this attack can be found at: 977 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 978 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 979 Security Group at Royal Holloway, University of London 980 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 981 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 982 for preparing the fix. (CVE-2011-4108) 983 [Robin Seggelmann, Michael Tuexen] 984 985 *) Clear bytes used for block padding of SSL 3.0 records. 986 (CVE-2011-4576) 987 [Adam Langley (Google)] 988 989 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 990 Kadianakis <desnacked@gmail.com> for discovering this issue and 991 Adam Langley for preparing the fix. (CVE-2011-4619) 992 [Adam Langley (Google)] 993 994 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 995 [Andrey Kulikov <amdeich@gmail.com>] 996 997 *) Prevent malformed RFC3779 data triggering an assertion failure. 998 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 999 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1000 [Rob Austein <sra@hactrn.net>] 1001 1002 *) Improved PRNG seeding for VOS. 1003 [Paul Green <Paul.Green@stratus.com>] 1004 1005 *) Fix ssl_ciph.c set-up race. 1006 [Adam Langley (Google)] 1007 1008 *) Fix spurious failures in ecdsatest.c. 1009 [Emilia K�sper (Google)] 1010 1011 *) Fix the BIO_f_buffer() implementation (which was mixing different 1012 interpretations of the '..._len' fields). 1013 [Adam Langley (Google)] 1014 1015 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1016 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1017 threads won't reuse the same blinding coefficients. 1018 1019 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1020 lock to call BN_BLINDING_invert_ex, and avoids one use of 1021 BN_BLINDING_update for each BN_BLINDING structure (previously, 1022 the last update always remained unused). 1023 [Emilia K�sper (Google)] 1024 1025 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 1026 [Bob Buckholz (Google)] 1027 1028 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 1029 1030 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 1031 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 1032 [Kaspar Brand <ossl@velox.ch>] 1033 1034 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1035 for multi-threaded use of ECDH. (CVE-2011-3210) 1036 [Adam Langley (Google)] 1037 1038 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1039 [Bodo Moeller] 1040 1041 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 1042 signature public key algorithm by using OID xref utilities instead. 1043 Before this you could only use some ECC ciphersuites with SHA1 only. 1044 [Steve Henson] 1045 1046 *) Add protection against ECDSA timing attacks as mentioned in the paper 1047 by Billy Bob Brumley and Nicola Tuveri, see: 1048 1049 http://eprint.iacr.org/2011/232.pdf 1050 1051 [Billy Bob Brumley and Nicola Tuveri] 1052 1053 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 1054 1055 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1056 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1057 1058 *) Fix bug in string printing code: if *any* escaping is enabled we must 1059 escape the escape character (backslash) or the resulting string is 1060 ambiguous. 1061 [Steve Henson] 1062 1063 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 1064 1065 *) Disable code workaround for ancient and obsolete Netscape browsers 1066 and servers: an attacker can use it in a ciphersuite downgrade attack. 1067 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1068 [Steve Henson] 1069 1070 *) Fixed J-PAKE implementation error, originally discovered by 1071 Sebastien Martini, further info and confirmation from Stefan 1072 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1073 [Ben Laurie] 1074 1075 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 1076 1077 *) Fix extension code to avoid race conditions which can result in a buffer 1078 overrun vulnerability: resumed sessions must not be modified as they can 1079 be shared by multiple threads. CVE-2010-3864 1080 [Steve Henson] 1081 1082 *) Fix WIN32 build system to correctly link an ENGINE directory into 1083 a DLL. 1084 [Steve Henson] 1085 1086 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 1087 1088 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 1089 (CVE-2010-1633) 1090 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 1091 1092 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 1093 1094 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 1095 context. The operation can be customised via the ctrl mechanism in 1096 case ENGINEs want to include additional functionality. 1097 [Steve Henson] 1098 1099 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 1100 [Steve Henson] 1101 1102 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 1103 output hashes compatible with older versions of OpenSSL. 1104 [Willy Weisz <weisz@vcpc.univie.ac.at>] 1105 1106 *) Fix compression algorithm handling: if resuming a session use the 1107 compression algorithm of the resumed session instead of determining 1108 it from client hello again. Don't allow server to change algorithm. 1109 [Steve Henson] 1110 1111 *) Add load_crls() function to apps tidying load_certs() too. Add option 1112 to verify utility to allow additional CRLs to be included. 1113 [Steve Henson] 1114 1115 *) Update OCSP request code to permit adding custom headers to the request: 1116 some responders need this. 1117 [Steve Henson] 1118 1119 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 1120 correctly. 1121 [Julia Lawall <julia@diku.dk>] 1122 1123 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 1124 needlessly dereferenced structures, used obsolete functions and 1125 didn't handle all updated verify codes correctly. 1126 [Steve Henson] 1127 1128 *) Disable MD2 in the default configuration. 1129 [Steve Henson] 1130 1131 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 1132 indicate the initial BIO being pushed or popped. This makes it possible 1133 to determine whether the BIO is the one explicitly called or as a result 1134 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 1135 it handles reference counts correctly and doesn't zero out the I/O bio 1136 when it is not being explicitly popped. WARNING: applications which 1137 included workarounds for the old buggy behaviour will need to be modified 1138 or they could free up already freed BIOs. 1139 [Steve Henson] 1140 1141 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 1142 renaming to all platforms (within the 0.9.8 branch, this was 1143 done conditionally on Netware platforms to avoid a name clash). 1144 [Guenter <lists@gknw.net>] 1145 1146 *) Add ECDHE and PSK support to DTLS. 1147 [Michael Tuexen <tuexen@fh-muenster.de>] 1148 1149 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 1150 be used on C++. 1151 [Steve Henson] 1152 1153 *) Add "missing" function EVP_MD_flags() (without this the only way to 1154 retrieve a digest flags is by accessing the structure directly. Update 1155 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 1156 or cipher is registered as in the "from" argument. Print out all 1157 registered digests in the dgst usage message instead of manually 1158 attempting to work them out. 1159 [Steve Henson] 1160 1161 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 1162 this allows the use of compression and extensions. Change default cipher 1163 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 1164 by default unless an application cipher string requests it. 1165 [Steve Henson] 1166 1167 *) Alter match criteria in PKCS12_parse(). It used to try to use local 1168 key ids to find matching certificates and keys but some PKCS#12 files 1169 don't follow the (somewhat unwritten) rules and this strategy fails. 1170 Now just gather all certificates together and the first private key 1171 then look for the first certificate that matches the key. 1172 [Steve Henson] 1173 1174 *) Support use of registered digest and cipher names for dgst and cipher 1175 commands instead of having to add each one as a special case. So now 1176 you can do: 1177 1178 openssl sha256 foo 1179 1180 as well as: 1181 1182 openssl dgst -sha256 foo 1183 1184 and this works for ENGINE based algorithms too. 1185 1186 [Steve Henson] 1187 1188 *) Update Gost ENGINE to support parameter files. 1189 [Victor B. Wagner <vitus@cryptocom.ru>] 1190 1191 *) Support GeneralizedTime in ca utility. 1192 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 1193 1194 *) Enhance the hash format used for certificate directory links. The new 1195 form uses the canonical encoding (meaning equivalent names will work 1196 even if they aren't identical) and uses SHA1 instead of MD5. This form 1197 is incompatible with the older format and as a result c_rehash should 1198 be used to rebuild symbolic links. 1199 [Steve Henson] 1200 1201 *) Make PKCS#8 the default write format for private keys, replacing the 1202 traditional format. This form is standardised, more secure and doesn't 1203 include an implicit MD5 dependency. 1204 [Steve Henson] 1205 1206 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 1207 committed to OpenSSL should pass this lot as a minimum. 1208 [Steve Henson] 1209 1210 *) Add session ticket override functionality for use by EAP-FAST. 1211 [Jouni Malinen <j@w1.fi>] 1212 1213 *) Modify HMAC functions to return a value. Since these can be implemented 1214 in an ENGINE errors can occur. 1215 [Steve Henson] 1216 1217 *) Type-checked OBJ_bsearch_ex. 1218 [Ben Laurie] 1219 1220 *) Type-checked OBJ_bsearch. Also some constification necessitated 1221 by type-checking. Still to come: TXT_DB, bsearch(?), 1222 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 1223 CONF_VALUE. 1224 [Ben Laurie] 1225 1226 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 1227 seconds to a tm structure directly, instead of going through OS 1228 specific date routines. This avoids any issues with OS routines such 1229 as the year 2038 bug. New *_adj() functions for ASN1 time structures 1230 and X509_time_adj_ex() to cover the extended range. The existing 1231 X509_time_adj() is still usable and will no longer have any date issues. 1232 [Steve Henson] 1233 1234 *) Delta CRL support. New use deltas option which will attempt to locate 1235 and search any appropriate delta CRLs available. 1236 1237 This work was sponsored by Google. 1238 [Steve Henson] 1239 1240 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 1241 code and add additional score elements. Validate alternate CRL paths 1242 as part of the CRL checking and indicate a new error "CRL path validation 1243 error" in this case. Applications wanting additional details can use 1244 the verify callback and check the new "parent" field. If this is not 1245 NULL CRL path validation is taking place. Existing applications wont 1246 see this because it requires extended CRL support which is off by 1247 default. 1248 1249 This work was sponsored by Google. 1250 [Steve Henson] 1251 1252 *) Support for freshest CRL extension. 1253 1254 This work was sponsored by Google. 1255 [Steve Henson] 1256 1257 *) Initial indirect CRL support. Currently only supported in the CRLs 1258 passed directly and not via lookup. Process certificate issuer 1259 CRL entry extension and lookup CRL entries by bother issuer name 1260 and serial number. Check and process CRL issuer entry in IDP extension. 1261 1262 This work was sponsored by Google. 1263 [Steve Henson] 1264 1265 *) Add support for distinct certificate and CRL paths. The CRL issuer 1266 certificate is validated separately in this case. Only enabled if 1267 an extended CRL support flag is set: this flag will enable additional 1268 CRL functionality in future. 1269 1270 This work was sponsored by Google. 1271 [Steve Henson] 1272 1273 *) Add support for policy mappings extension. 1274 1275 This work was sponsored by Google. 1276 [Steve Henson] 1277 1278 *) Fixes to pathlength constraint, self issued certificate handling, 1279 policy processing to align with RFC3280 and PKITS tests. 1280 1281 This work was sponsored by Google. 1282 [Steve Henson] 1283 1284 *) Support for name constraints certificate extension. DN, email, DNS 1285 and URI types are currently supported. 1286 1287 This work was sponsored by Google. 1288 [Steve Henson] 1289 1290 *) To cater for systems that provide a pointer-based thread ID rather 1291 than numeric, deprecate the current numeric thread ID mechanism and 1292 replace it with a structure and associated callback type. This 1293 mechanism allows a numeric "hash" to be extracted from a thread ID in 1294 either case, and on platforms where pointers are larger than 'long', 1295 mixing is done to help ensure the numeric 'hash' is usable even if it 1296 can't be guaranteed unique. The default mechanism is to use "&errno" 1297 as a pointer-based thread ID to distinguish between threads. 1298 1299 Applications that want to provide their own thread IDs should now use 1300 CRYPTO_THREADID_set_callback() to register a callback that will call 1301 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 1302 1303 Note that ERR_remove_state() is now deprecated, because it is tied 1304 to the assumption that thread IDs are numeric. ERR_remove_state(0) 1305 to free the current thread's error state should be replaced by 1306 ERR_remove_thread_state(NULL). 1307 1308 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 1309 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 1310 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 1311 application was previously providing a numeric thread callback that 1312 was inappropriate for distinguishing threads, then uniqueness might 1313 have been obtained with &errno that happened immediately in the 1314 intermediate development versions of OpenSSL; this is no longer the 1315 case, the numeric thread callback will now override the automatic use 1316 of &errno.) 1317 [Geoff Thorpe, with help from Bodo Moeller] 1318 1319 *) Initial support for different CRL issuing certificates. This covers a 1320 simple case where the self issued certificates in the chain exist and 1321 the real CRL issuer is higher in the existing chain. 1322 1323 This work was sponsored by Google. 1324 [Steve Henson] 1325 1326 *) Removed effectively defunct crypto/store from the build. 1327 [Ben Laurie] 1328 1329 *) Revamp of STACK to provide stronger type-checking. Still to come: 1330 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 1331 ASN1_STRING, CONF_VALUE. 1332 [Ben Laurie] 1333 1334 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 1335 RAM on SSL connections. This option can save about 34k per idle SSL. 1336 [Nick Mathewson] 1337 1338 *) Revamp of LHASH to provide stronger type-checking. Still to come: 1339 STACK, TXT_DB, bsearch, qsort. 1340 [Ben Laurie] 1341 1342 *) Initial support for Cryptographic Message Syntax (aka CMS) based 1343 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 1344 support for data, signedData, compressedData, digestedData and 1345 encryptedData, envelopedData types included. Scripts to check against 1346 RFC4134 examples draft and interop and consistency checks of many 1347 content types and variants. 1348 [Steve Henson] 1349 1350 *) Add options to enc utility to support use of zlib compression BIO. 1351 [Steve Henson] 1352 1353 *) Extend mk1mf to support importing of options and assembly language 1354 files from Configure script, currently only included in VC-WIN32. 1355 The assembly language rules can now optionally generate the source 1356 files from the associated perl scripts. 1357 [Steve Henson] 1358 1359 *) Implement remaining functionality needed to support GOST ciphersuites. 1360 Interop testing has been performed using CryptoPro implementations. 1361 [Victor B. Wagner <vitus@cryptocom.ru>] 1362 1363 *) s390x assembler pack. 1364 [Andy Polyakov] 1365 1366 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 1367 "family." 1368 [Andy Polyakov] 1369 1370 *) Implement Opaque PRF Input TLS extension as specified in 1371 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 1372 official specification yet and no extension type assignment by 1373 IANA exists, this extension (for now) will have to be explicitly 1374 enabled when building OpenSSL by providing the extension number 1375 to use. For example, specify an option 1376 1377 -DTLSEXT_TYPE_opaque_prf_input=0x9527 1378 1379 to the "config" or "Configure" script to enable the extension, 1380 assuming extension number 0x9527 (which is a completely arbitrary 1381 and unofficial assignment based on the MD5 hash of the Internet 1382 Draft). Note that by doing so, you potentially lose 1383 interoperability with other TLS implementations since these might 1384 be using the same extension number for other purposes. 1385 1386 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1387 opaque PRF input value to use in the handshake. This will create 1388 an interal copy of the length-'len' string at 'src', and will 1389 return non-zero for success. 1390 1391 To get more control and flexibility, provide a callback function 1392 by using 1393 1394 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1395 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1396 1397 where 1398 1399 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1400 void *arg; 1401 1402 Callback function 'cb' will be called in handshakes, and is 1403 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1404 Argument 'arg' is for application purposes (the value as given to 1405 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1406 be provided to the callback function). The callback function 1407 has to return non-zero to report success: usually 1 to use opaque 1408 PRF input just if possible, or 2 to enforce use of the opaque PRF 1409 input. In the latter case, the library will abort the handshake 1410 if opaque PRF input is not successfully negotiated. 1411 1412 Arguments 'peerinput' and 'len' given to the callback function 1413 will always be NULL and 0 in the case of a client. A server will 1414 see the client's opaque PRF input through these variables if 1415 available (NULL and 0 otherwise). Note that if the server 1416 provides an opaque PRF input, the length must be the same as the 1417 length of the client's opaque PRF input. 1418 1419 Note that the callback function will only be called when creating 1420 a new session (session resumption can resume whatever was 1421 previously negotiated), and will not be called in SSL 2.0 1422 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1423 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1424 for applications that need to enforce opaque PRF input. 1425 1426 [Bodo Moeller] 1427 1428 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1429 MAC. 1430 1431 [Victor B. Wagner <vitus@cryptocom.ru>] 1432 1433 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1434 RFC4507bis. The encrypted ticket format is an encrypted encoded 1435 SSL_SESSION structure, that way new session features are automatically 1436 supported. 1437 1438 If a client application caches session in an SSL_SESSION structure 1439 support is transparent because tickets are now stored in the encoded 1440 SSL_SESSION. 1441 1442 The SSL_CTX structure automatically generates keys for ticket 1443 protection in servers so again support should be possible 1444 with no application modification. 1445 1446 If a client or server wishes to disable RFC4507 support then the option 1447 SSL_OP_NO_TICKET can be set. 1448 1449 Add a TLS extension debugging callback to allow the contents of any client 1450 or server extensions to be examined. 1451 1452 This work was sponsored by Google. 1453 [Steve Henson] 1454 1455 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1456 OpenSSL should now compile cleanly on gcc 4.2 1457 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1458 1459 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1460 support including streaming MAC support: this is required for GOST 1461 ciphersuite support. 1462 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1463 1464 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1465 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1466 to output in BER and PEM format. 1467 [Steve Henson] 1468 1469 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1470 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1471 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1472 ENGINE support for HMAC keys which are unextractable. New -mac and 1473 -macopt options to dgst utility. 1474 [Steve Henson] 1475 1476 *) New option -sigopt to dgst utility. Update dgst to use 1477 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1478 alternative signing paramaters such as X9.31 or PSS in the dgst 1479 utility. 1480 [Steve Henson] 1481 1482 *) Change ssl_cipher_apply_rule(), the internal function that does 1483 the work each time a ciphersuite string requests enabling 1484 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1485 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1486 the order of disabled ciphersuites such that those ciphersuites 1487 that most recently went from enabled to disabled not only stay 1488 in order with respect to each other, but also have higher priority 1489 than other disabled ciphersuites the next time ciphersuites are 1490 enabled again. 1491 1492 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1493 the same ciphersuites as with "HIGH" alone, but in a specific 1494 order where the PSK ciphersuites come first (since they are the 1495 most recently disabled ciphersuites when "HIGH" is parsed). 1496 1497 Also, change ssl_create_cipher_list() (using this new 1498 funcionality) such that between otherwise identical 1499 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1500 the default order. 1501 [Bodo Moeller] 1502 1503 *) Change ssl_create_cipher_list() so that it automatically 1504 arranges the ciphersuites in reasonable order before starting 1505 to process the rule string. Thus, the definition for "DEFAULT" 1506 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1507 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1508 This makes it much easier to arrive at a reasonable default order 1509 in applications for which anonymous ciphers are OK (meaning 1510 that you can't actually use DEFAULT). 1511 [Bodo Moeller; suggested by Victor Duchovni] 1512 1513 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1514 processing) into multiple integers instead of setting 1515 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1516 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1517 (These masks as well as the individual bit definitions are hidden 1518 away into the non-exported interface ssl/ssl_locl.h, so this 1519 change to the definition of the SSL_CIPHER structure shouldn't 1520 affect applications.) This give us more bits for each of these 1521 categories, so there is no longer a need to coagulate AES128 and 1522 AES256 into a single algorithm bit, and to coagulate Camellia128 1523 and Camellia256 into a single algorithm bit, which has led to all 1524 kinds of kludges. 1525 1526 Thus, among other things, the kludge introduced in 0.9.7m and 1527 0.9.8e for masking out AES256 independently of AES128 or masking 1528 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1529 1530 With the change, we also introduce new ciphersuite aliases that 1531 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1532 "CAMELLIA256". 1533 [Bodo Moeller] 1534 1535 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1536 Use the leftmost N bytes of the signature input if the input is 1537 larger than the prime q (with N being the size in bytes of q). 1538 [Nils Larsch] 1539 1540 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1541 it yet and it is largely untested. 1542 [Steve Henson] 1543 1544 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1545 [Nils Larsch] 1546 1547 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1548 some compilers (gcc 4.2 and later) reject their use. Safestack is 1549 reimplemented. Update ASN1 to avoid use of legacy functions. 1550 [Steve Henson] 1551 1552 *) Win32/64 targets are linked with Winsock2. 1553 [Andy Polyakov] 1554 1555 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1556 to external functions. This can be used to increase CRL handling 1557 efficiency especially when CRLs are very large by (for example) storing 1558 the CRL revoked certificates in a database. 1559 [Steve Henson] 1560 1561 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1562 new CRLs added to a directory can be used. New command line option 1563 -verify_return_error to s_client and s_server. This causes real errors 1564 to be returned by the verify callback instead of carrying on no matter 1565 what. This reflects the way a "real world" verify callback would behave. 1566 [Steve Henson] 1567 1568 *) GOST engine, supporting several GOST algorithms and public key formats. 1569 Kindly donated by Cryptocom. 1570 [Cryptocom] 1571 1572 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1573 partitioned by DP are handled but no indirect CRL or reason partitioning 1574 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1575 selected via a scoring technique which handles IDP and AKID in CRLs. 1576 [Steve Henson] 1577 1578 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1579 will ultimately be used for all verify operations: this will remove the 1580 X509_STORE dependency on certificate verification and allow alternative 1581 lookup methods. X509_STORE based implementations of these two callbacks. 1582 [Steve Henson] 1583 1584 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1585 Modify get_crl() to find a valid (unexpired) CRL if possible. 1586 [Steve Henson] 1587 1588 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1589 this would be called X509_CRL_cmp() but that name is already used by 1590 a function that just compares CRL issuer names. Cache several CRL 1591 extensions in X509_CRL structure and cache CRLDP in X509. 1592 [Steve Henson] 1593 1594 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1595 this maps equivalent X509_NAME structures into a consistent structure. 1596 Name comparison can then be performed rapidly using memcmp(). 1597 [Steve Henson] 1598 1599 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1600 utility. 1601 [Steve Henson] 1602 1603 *) Allow digests to supply their own micalg string for S/MIME type using 1604 the ctrl EVP_MD_CTRL_MICALG. 1605 [Steve Henson] 1606 1607 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1608 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1609 ctrl. It can then customise the structure before and/or after signing 1610 if necessary. 1611 [Steve Henson] 1612 1613 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1614 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1615 to free up any added signature OIDs. 1616 [Steve Henson] 1617 1618 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1619 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1620 digest and cipher tables. New options added to openssl utility: 1621 list-message-digest-algorithms and list-cipher-algorithms. 1622 [Steve Henson] 1623 1624 *) Change the array representation of binary polynomials: the list 1625 of degrees of non-zero coefficients is now terminated with -1. 1626 Previously it was terminated with 0, which was also part of the 1627 value; thus, the array representation was not applicable to 1628 polynomials where t^0 has coefficient zero. This change makes 1629 the array representation useful in a more general context. 1630 [Douglas Stebila] 1631 1632 *) Various modifications and fixes to SSL/TLS cipher string 1633 handling. For ECC, the code now distinguishes between fixed ECDH 1634 with RSA certificates on the one hand and with ECDSA certificates 1635 on the other hand, since these are separate ciphersuites. The 1636 unused code for Fortezza ciphersuites has been removed. 1637 1638 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1639 (not "ECDHE"). For consistency with the code for DH 1640 certificates, use of ECDH certificates is now considered ECDH 1641 authentication, not RSA or ECDSA authentication (the latter is 1642 merely the CA's signing algorithm and not actively used in the 1643 protocol). 1644 1645 The temporary ciphersuite alias "ECCdraft" is no longer 1646 available, and ECC ciphersuites are no longer excluded from "ALL" 1647 and "DEFAULT". The following aliases now exist for RFC 4492 1648 ciphersuites, most of these by analogy with the DH case: 1649 1650 kECDHr - ECDH cert, signed with RSA 1651 kECDHe - ECDH cert, signed with ECDSA 1652 kECDH - ECDH cert (signed with either RSA or ECDSA) 1653 kEECDH - ephemeral ECDH 1654 ECDH - ECDH cert or ephemeral ECDH 1655 1656 aECDH - ECDH cert 1657 aECDSA - ECDSA cert 1658 ECDSA - ECDSA cert 1659 1660 AECDH - anonymous ECDH 1661 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1662 1663 [Bodo Moeller] 1664 1665 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1666 Use correct micalg parameters depending on digest(s) in signed message. 1667 [Steve Henson] 1668 1669 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1670 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1671 [Steve Henson] 1672 1673 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1674 an engine to register a method. Add ENGINE lookups for methods and 1675 functional reference processing. 1676 [Steve Henson] 1677 1678 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1679 EVP_{Sign,Verify}* which allow an application to customise the signature 1680 process. 1681 [Steve Henson] 1682 1683 *) New -resign option to smime utility. This adds one or more signers 1684 to an existing PKCS#7 signedData structure. Also -md option to use an 1685 alternative message digest algorithm for signing. 1686 [Steve Henson] 1687 1688 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1689 create PKCS7 structures containing multiple signers. Update smime 1690 application to support multiple signers. 1691 [Steve Henson] 1692 1693 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1694 digest MAC. 1695 [Steve Henson] 1696 1697 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1698 Reorganize PBE internals to lookup from a static table using NIDs, 1699 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1700 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1701 PRF which will be automatically used with PBES2. 1702 [Steve Henson] 1703 1704 *) Replace the algorithm specific calls to generate keys in "req" with the 1705 new API. 1706 [Steve Henson] 1707 1708 *) Update PKCS#7 enveloped data routines to use new API. This is now 1709 supported by any public key method supporting the encrypt operation. A 1710 ctrl is added to allow the public key algorithm to examine or modify 1711 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1712 a no op. 1713 [Steve Henson] 1714 1715 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1716 a default digest type to use. In most cases this will be SHA1 but some 1717 algorithms (such as GOST) need to specify an alternative digest. The 1718 return value indicates how strong the prefernce is 1 means optional and 1719 2 is mandatory (that is it is the only supported type). Modify 1720 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1721 use the default md. Update openssl utilities to use the default digest 1722 type for signing if it is not explicitly indicated. 1723 [Steve Henson] 1724 1725 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1726 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1727 signing method from the key type. This effectively removes the link 1728 between digests and public key types. 1729 [Steve Henson] 1730 1731 *) Add an OID cross reference table and utility functions. Its purpose is to 1732 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1733 rsaEncryption. This will allow some of the algorithm specific hackery 1734 needed to use the correct OID to be removed. 1735 [Steve Henson] 1736 1737 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1738 structures for PKCS7_sign(). They are now set up by the relevant public 1739 key ASN1 method. 1740 [Steve Henson] 1741 1742 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1743 [Steve Henson] 1744 1745 *) Add support for key derivation (agreement) in the API, DH method and 1746 pkeyutl. 1747 [Steve Henson] 1748 1749 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1750 public and private key formats. As a side effect these add additional 1751 command line functionality not previously available: DSA signatures can be 1752 generated and verified using pkeyutl and DH key support and generation in 1753 pkey, genpkey. 1754 [Steve Henson] 1755 1756 *) BeOS support. 1757 [Oliver Tappe <zooey@hirschkaefer.de>] 1758 1759 *) New make target "install_html_docs" installs HTML renditions of the 1760 manual pages. 1761 [Oliver Tappe <zooey@hirschkaefer.de>] 1762 1763 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1764 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1765 support key and parameter generation and add initial key generation 1766 functionality for RSA. 1767 [Steve Henson] 1768 1769 *) Add functions for main EVP_PKEY_method operations. The undocumented 1770 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1771 EVP_PKEY_{encrypt,decrypt}_old. 1772 [Steve Henson] 1773 1774 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1775 key API, doesn't do much yet. 1776 [Steve Henson] 1777 1778 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1779 public key algorithms. New option to openssl utility: 1780 "list-public-key-algorithms" to print out info. 1781 [Steve Henson] 1782 1783 *) Implement the Supported Elliptic Curves Extension for 1784 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1785 [Douglas Stebila] 1786 1787 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1788 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1789 [Steve Henson] 1790 1791 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1792 utilities such as rsa, dsa, dsaparam etc except they process any key 1793 type. 1794 [Steve Henson] 1795 1796 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1797 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1798 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1799 structure. 1800 [Steve Henson] 1801 1802 *) Initial support for pluggable public key ASN1. 1803 De-spaghettify the public key ASN1 handling. Move public and private 1804 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1805 algorithm specific handling to a single module within the relevant 1806 algorithm directory. Add functions to allow (near) opaque processing 1807 of public and private key structures. 1808 [Steve Henson] 1809 1810 *) Implement the Supported Point Formats Extension for 1811 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1812 [Douglas Stebila] 1813 1814 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1815 for the psk identity [hint] and the psk callback functions to the 1816 SSL_SESSION, SSL and SSL_CTX structure. 1817 1818 New ciphersuites: 1819 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1820 PSK-AES256-CBC-SHA 1821 1822 New functions: 1823 SSL_CTX_use_psk_identity_hint 1824 SSL_get_psk_identity_hint 1825 SSL_get_psk_identity 1826 SSL_use_psk_identity_hint 1827 1828 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1829 1830 *) Add RFC 3161 compliant time stamp request creation, response generation 1831 and response verification functionality. 1832 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1833 1834 *) Add initial support for TLS extensions, specifically for the server_name 1835 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1836 have new members for a host name. The SSL data structure has an 1837 additional member SSL_CTX *initial_ctx so that new sessions can be 1838 stored in that context to allow for session resumption, even after the 1839 SSL has been switched to a new SSL_CTX in reaction to a client's 1840 server_name extension. 1841 1842 New functions (subject to change): 1843 1844 SSL_get_servername() 1845 SSL_get_servername_type() 1846 SSL_set_SSL_CTX() 1847 1848 New CTRL codes and macros (subject to change): 1849 1850 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1851 - SSL_CTX_set_tlsext_servername_callback() 1852 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1853 - SSL_CTX_set_tlsext_servername_arg() 1854 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1855 1856 openssl s_client has a new '-servername ...' option. 1857 1858 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1859 '-key2 ...', '-servername_fatal' (subject to change). This allows 1860 testing the HostName extension for a specific single host name ('-cert' 1861 and '-key' remain fallbacks for handshakes without HostName 1862 negotiation). If the unrecogninzed_name alert has to be sent, this by 1863 default is a warning; it becomes fatal with the '-servername_fatal' 1864 option. 1865 1866 [Peter Sylvester, Remy Allais, Christophe Renou] 1867 1868 *) Whirlpool hash implementation is added. 1869 [Andy Polyakov] 1870 1871 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1872 bn(64,32). Because of instruction set limitations it doesn't have 1873 any negative impact on performance. This was done mostly in order 1874 to make it possible to share assembler modules, such as bn_mul_mont 1875 implementations, between 32- and 64-bit builds without hassle. 1876 [Andy Polyakov] 1877 1878 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1879 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1880 macro. 1881 [Bodo Moeller] 1882 1883 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1884 dedicated Montgomery multiplication procedure, is introduced. 1885 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1886 "64-bit" performance on certain 32-bit targets. 1887 [Andy Polyakov] 1888 1889 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1890 in SSL structures. New SSL ctrl to set maximum send fragment size. 1891 Save memory by seeting the I/O buffer sizes dynamically instead of 1892 using the maximum available value. 1893 [Steve Henson] 1894 1895 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1896 in addition to the text details. 1897 [Bodo Moeller] 1898 1899 *) Very, very preliminary EXPERIMENTAL support for printing of general 1900 ASN1 structures. This currently produces rather ugly output and doesn't 1901 handle several customised structures at all. 1902 [Steve Henson] 1903 1904 *) Integrated support for PVK file format and some related formats such 1905 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1906 these in the 'rsa' and 'dsa' utilities. 1907 [Steve Henson] 1908 1909 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1910 [Steve Henson] 1911 1912 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1913 place for the (very old) "NETSCAPE" format certificates which are now 1914 handled using new ASN1 code equivalents. 1915 [Steve Henson] 1916 1917 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1918 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1919 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1920 [Nils Larsch] 1921 1922 *) Modify CRL distribution points extension code to print out previously 1923 unsupported fields. Enhance extension setting code to allow setting of 1924 all fields. 1925 [Steve Henson] 1926 1927 *) Add print and set support for Issuing Distribution Point CRL extension. 1928 [Steve Henson] 1929 1930 *) Change 'Configure' script to enable Camellia by default. 1931 [NTT] 1932 1933 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1934 1935 *) When rejecting SSL/TLS records due to an incorrect version number, never 1936 update s->server with a new major version number. As of 1937 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1938 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1939 the previous behavior could result in a read attempt at NULL when 1940 receiving specific incorrect SSL/TLS records once record payload 1941 protection is active. (CVE-2010-0740) 1942 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1943 1944 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1945 could be crashed if the relevant tables were not present (e.g. chrooted). 1946 [Tomas Hoger <thoger@redhat.com>] 1947 1948 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1949 1950 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1951 [Martin Olsson, Neel Mehta] 1952 1953 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1954 accommodate for stack sorting, always a write lock!). 1955 [Bodo Moeller] 1956 1957 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1958 excessive delays in the RAND_poll(): over a minute. As a workaround 1959 include a time check in the inner Heap32Next loop too. 1960 [Steve Henson] 1961 1962 *) The code that handled flushing of data in SSL/TLS originally used the 1963 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1964 the problem outlined in PR#1949. The fix suggested there however can 1965 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1966 of Apache). So instead simplify the code to flush unconditionally. 1967 This should be fine since flushing with no data to flush is a no op. 1968 [Steve Henson] 1969 1970 *) Handle TLS versions 2.0 and later properly and correctly use the 1971 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1972 off ancient servers have a habit of sticking around for a while... 1973 [Steve Henson] 1974 1975 *) Modify compression code so it frees up structures without using the 1976 ex_data callbacks. This works around a problem where some applications 1977 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1978 restarting) then use compression (e.g. SSL with compression) later. 1979 This results in significant per-connection memory leaks and 1980 has caused some security issues including CVE-2008-1678 and 1981 CVE-2009-4355. 1982 [Steve Henson] 1983 1984 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1985 change when encrypting or decrypting. 1986 [Bodo Moeller] 1987 1988 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1989 connect and renegotiate with servers which do not support RI. 1990 Until RI is more widely deployed this option is enabled by default. 1991 [Steve Henson] 1992 1993 *) Add "missing" ssl ctrls to clear options and mode. 1994 [Steve Henson] 1995 1996 *) If client attempts to renegotiate and doesn't support RI respond with 1997 a no_renegotiation alert as required by RFC5746. Some renegotiating 1998 TLS clients will continue a connection gracefully when they receive 1999 the alert. Unfortunately OpenSSL mishandled this alert and would hang 2000 waiting for a server hello which it will never receive. Now we treat a 2001 received no_renegotiation alert as a fatal error. This is because 2002 applications requesting a renegotiation might well expect it to succeed 2003 and would have no code in place to handle the server denying it so the 2004 only safe thing to do is to terminate the connection. 2005 [Steve Henson] 2006 2007 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 2008 peer supports secure renegotiation and 0 otherwise. Print out peer 2009 renegotiation support in s_client/s_server. 2010 [Steve Henson] 2011 2012 *) Replace the highly broken and deprecated SPKAC certification method with 2013 the updated NID creation version. This should correctly handle UTF8. 2014 [Steve Henson] 2015 2016 *) Implement RFC5746. Re-enable renegotiation but require the extension 2017 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 2018 turns out to be a bad idea. It has been replaced by 2019 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 2020 SSL_CTX_set_options(). This is really not recommended unless you 2021 know what you are doing. 2022 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 2023 2024 *) Fixes to stateless session resumption handling. Use initial_ctx when 2025 issuing and attempting to decrypt tickets in case it has changed during 2026 servername handling. Use a non-zero length session ID when attempting 2027 stateless session resumption: this makes it possible to determine if 2028 a resumption has occurred immediately after receiving server hello 2029 (several places in OpenSSL subtly assume this) instead of later in 2030 the handshake. 2031 [Steve Henson] 2032 2033 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 2034 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 2035 fixes for a few places where the return code is not checked 2036 correctly. 2037 [Julia Lawall <julia@diku.dk>] 2038 2039 *) Add --strict-warnings option to Configure script to include devteam 2040 warnings in other configurations. 2041 [Steve Henson] 2042 2043 *) Add support for --libdir option and LIBDIR variable in makefiles. This 2044 makes it possible to install openssl libraries in locations which 2045 have names other than "lib", for example "/usr/lib64" which some 2046 systems need. 2047 [Steve Henson, based on patch from Jeremy Utley] 2048 2049 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 2050 X690 8.9.12 and can produce some misleading textual output of OIDs. 2051 [Steve Henson, reported by Dan Kaminsky] 2052 2053 *) Delete MD2 from algorithm tables. This follows the recommendation in 2054 several standards that it is not used in new applications due to 2055 several cryptographic weaknesses. For binary compatibility reasons 2056 the MD2 API is still compiled in by default. 2057 [Steve Henson] 2058 2059 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 2060 and restored. 2061 [Steve Henson] 2062 2063 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 2064 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 2065 clash. 2066 [Guenter <lists@gknw.net>] 2067 2068 *) Fix the server certificate chain building code to use X509_verify_cert(), 2069 it used to have an ad-hoc builder which was unable to cope with anything 2070 other than a simple chain. 2071 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 2072 2073 *) Don't check self signed certificate signatures in X509_verify_cert() 2074 by default (a flag can override this): it just wastes time without 2075 adding any security. As a useful side effect self signed root CAs 2076 with non-FIPS digests are now usable in FIPS mode. 2077 [Steve Henson] 2078 2079 *) In dtls1_process_out_of_seq_message() the check if the current message 2080 is already buffered was missing. For every new message was memory 2081 allocated, allowing an attacker to perform an denial of service attack 2082 with sending out of seq handshake messages until there is no memory 2083 left. Additionally every future messege was buffered, even if the 2084 sequence number made no sense and would be part of another handshake. 2085 So only messages with sequence numbers less than 10 in advance will be 2086 buffered. (CVE-2009-1378) 2087 [Robin Seggelmann, discovered by Daniel Mentz] 2088 2089 *) Records are buffered if they arrive with a future epoch to be 2090 processed after finishing the corresponding handshake. There is 2091 currently no limitation to this buffer allowing an attacker to perform 2092 a DOS attack with sending records with future epochs until there is no 2093 memory left. This patch adds the pqueue_size() function to detemine 2094 the size of a buffer and limits the record buffer to 100 entries. 2095 (CVE-2009-1377) 2096 [Robin Seggelmann, discovered by Daniel Mentz] 2097 2098 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 2099 parent structure is freed. (CVE-2009-1379) 2100 [Daniel Mentz] 2101 2102 *) Handle non-blocking I/O properly in SSL_shutdown() call. 2103 [Darryl Miles <darryl-mailinglists@netbauds.net>] 2104 2105 *) Add 2.5.4.* OIDs 2106 [Ilya O. <vrghost@gmail.com>] 2107 2108 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 2109 2110 *) Disable renegotiation completely - this fixes a severe security 2111 problem (CVE-2009-3555) at the cost of breaking all 2112 renegotiation. Renegotiation can be re-enabled by setting 2113 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 2114 run-time. This is really not recommended unless you know what 2115 you're doing. 2116 [Ben Laurie] 2117 2118 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 2119 2120 *) Don't set val to NULL when freeing up structures, it is freed up by 2121 underlying code. If sizeof(void *) > sizeof(long) this can result in 2122 zeroing past the valid field. (CVE-2009-0789) 2123 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 2124 2125 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 2126 checked correctly. This would allow some invalid signed attributes to 2127 appear to verify correctly. (CVE-2009-0591) 2128 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2129 2130 *) Reject UniversalString and BMPString types with invalid lengths. This 2131 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 2132 a legal length. (CVE-2009-0590) 2133 [Steve Henson] 2134 2135 *) Set S/MIME signing as the default purpose rather than setting it 2136 unconditionally. This allows applications to override it at the store 2137 level. 2138 [Steve Henson] 2139 2140 *) Permit restricted recursion of ASN1 strings. This is needed in practice 2141 to handle some structures. 2142 [Steve Henson] 2143 2144 *) Improve efficiency of mem_gets: don't search whole buffer each time 2145 for a '\n' 2146 [Jeremy Shapiro <jnshapir@us.ibm.com>] 2147 2148 *) New -hex option for openssl rand. 2149 [Matthieu Herrb] 2150 2151 *) Print out UTF8String and NumericString when parsing ASN1. 2152 [Steve Henson] 2153 2154 *) Support NumericString type for name components. 2155 [Steve Henson] 2156 2157 *) Allow CC in the environment to override the automatically chosen 2158 compiler. Note that nothing is done to ensure flags work with the 2159 chosen compiler. 2160 [Ben Laurie] 2161 2162 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2163 2164 *) Properly check EVP_VerifyFinal() and similar return values 2165 (CVE-2008-5077). 2166 [Ben Laurie, Bodo Moeller, Google Security Team] 2167 2168 *) Enable TLS extensions by default. 2169 [Ben Laurie] 2170 2171 *) Allow the CHIL engine to be loaded, whether the application is 2172 multithreaded or not. (This does not release the developer from the 2173 obligation to set up the dynamic locking callbacks.) 2174 [Sander Temme <sander@temme.net>] 2175 2176 *) Use correct exit code if there is an error in dgst command. 2177 [Steve Henson; problem pointed out by Roland Dirlewanger] 2178 2179 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2180 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2181 [Bodo Moeller] 2182 2183 *) Add experimental JPAKE support, including demo authentication in 2184 s_client and s_server. 2185 [Ben Laurie] 2186 2187 *) Set the comparison function in v3_addr_canonize(). 2188 [Rob Austein <sra@hactrn.net>] 2189 2190 *) Add support for XMPP STARTTLS in s_client. 2191 [Philip Paeps <philip@freebsd.org>] 2192 2193 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2194 to ensure that even with this option, only ciphersuites in the 2195 server's preference list will be accepted. (Note that the option 2196 applies only when resuming a session, so the earlier behavior was 2197 just about the algorithm choice for symmetric cryptography.) 2198 [Bodo Moeller] 2199 2200 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2201 2202 *) Fix NULL pointer dereference if a DTLS server received 2203 ChangeCipherSpec as first record (CVE-2009-1386). 2204 [PR #1679] 2205 2206 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2207 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2208 [Nagendra Modadugu] 2209 2210 *) The fix in 0.9.8c that supposedly got rid of unsafe 2211 double-checked locking was incomplete for RSA blinding, 2212 addressing just one layer of what turns out to have been 2213 doubly unsafe triple-checked locking. 2214 2215 So now fix this for real by retiring the MONT_HELPER macro 2216 in crypto/rsa/rsa_eay.c. 2217 2218 [Bodo Moeller; problem pointed out by Marius Schilder] 2219 2220 *) Various precautionary measures: 2221 2222 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2223 2224 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2225 (NB: This would require knowledge of the secret session ticket key 2226 to exploit, in which case you'd be SOL either way.) 2227 2228 - Change bn_nist.c so that it will properly handle input BIGNUMs 2229 outside the expected range. 2230 2231 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2232 builds. 2233 2234 [Neel Mehta, Bodo Moeller] 2235 2236 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2237 the load fails. Useful for distros. 2238 [Ben Laurie and the FreeBSD team] 2239 2240 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2241 [Steve Henson] 2242 2243 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2244 [Huang Ying] 2245 2246 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2247 2248 This work was sponsored by Logica. 2249 [Steve Henson] 2250 2251 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2252 keystores. Support for SSL/TLS client authentication too. 2253 Not compiled unless enable-capieng specified to Configure. 2254 2255 This work was sponsored by Logica. 2256 [Steve Henson] 2257 2258 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2259 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2260 attribute creation routines such as certifcate requests and PKCS#12 2261 files. 2262 [Steve Henson] 2263 2264 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2265 2266 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2267 handshake which could lead to a cilent crash as found using the 2268 Codenomicon TLS test suite (CVE-2008-1672) 2269 [Steve Henson, Mark Cox] 2270 2271 *) Fix double free in TLS server name extensions which could lead to 2272 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2273 [Joe Orton] 2274 2275 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2276 2277 Clear the error queue to ensure that error entries left from 2278 older function calls do not interfere with the correct operation. 2279 [Lutz Jaenicke, Erik de Castro Lopo] 2280 2281 *) Remove root CA certificates of commercial CAs: 2282 2283 The OpenSSL project does not recommend any specific CA and does not 2284 have any policy with respect to including or excluding any CA. 2285 Therefore it does not make any sense to ship an arbitrary selection 2286 of root CA certificates with the OpenSSL software. 2287 [Lutz Jaenicke] 2288 2289 *) RSA OAEP patches to fix two separate invalid memory reads. 2290 The first one involves inputs when 'lzero' is greater than 2291 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2292 before the beginning of from). The second one involves inputs where 2293 the 'db' section contains nothing but zeroes (there is a one-byte 2294 invalid read after the end of 'db'). 2295 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2296 2297 *) Partial backport from 0.9.9-dev: 2298 2299 Introduce bn_mul_mont (dedicated Montgomery multiplication 2300 procedure) as a candidate for BIGNUM assembler implementation. 2301 While 0.9.9-dev uses assembler for various architectures, only 2302 x86_64 is available by default here in the 0.9.8 branch, and 2303 32-bit x86 is available through a compile-time setting. 2304 2305 To try the 32-bit x86 assembler implementation, use Configure 2306 option "enable-montasm" (which exists only for this backport). 2307 2308 As "enable-montasm" for 32-bit x86 disclaims code stability 2309 anyway, in this constellation we activate additional code 2310 backported from 0.9.9-dev for further performance improvements, 2311 namely BN_from_montgomery_word. (To enable this otherwise, 2312 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2313 2314 [Andy Polyakov (backport partially by Bodo Moeller)] 2315 2316 *) Add TLS session ticket callback. This allows an application to set 2317 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2318 values. This is useful for key rollover for example where several key 2319 sets may exist with different names. 2320 [Steve Henson] 2321 2322 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2323 This was broken until now in 0.9.8 releases, such that the only way 2324 a registered ENGINE could be used (assuming it initialises 2325 successfully on the host) was to explicitly set it as the default 2326 for the relevant algorithms. This is in contradiction with 0.9.7 2327 behaviour and the documentation. With this fix, when an ENGINE is 2328 registered into a given algorithm's table of implementations, the 2329 'uptodate' flag is reset so that auto-discovery will be used next 2330 time a new context for that algorithm attempts to select an 2331 implementation. 2332 [Ian Lister (tweaked by Geoff Thorpe)] 2333 2334 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2335 implemention in the following ways: 2336 2337 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2338 hard coded. 2339 2340 Lack of BER streaming support means one pass streaming processing is 2341 only supported if data is detached: setting the streaming flag is 2342 ignored for embedded content. 2343 2344 CMS support is disabled by default and must be explicitly enabled 2345 with the enable-cms configuration option. 2346 [Steve Henson] 2347 2348 *) Update the GMP engine glue to do direct copies between BIGNUM and 2349 mpz_t when openssl and GMP use the same limb size. Otherwise the 2350 existing "conversion via a text string export" trick is still used. 2351 [Paul Sheer <paulsheer@gmail.com>] 2352 2353 *) Zlib compression BIO. This is a filter BIO which compressed and 2354 uncompresses any data passed through it. 2355 [Steve Henson] 2356 2357 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2358 RFC3394 compatible AES key wrapping. 2359 [Steve Henson] 2360 2361 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2362 sets string data without copying. X509_ALGOR_set0() and 2363 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2364 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2365 from an X509_ATTRIBUTE structure optionally checking it occurs only 2366 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2367 data. 2368 [Steve Henson] 2369 2370 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2371 to get the expected BN_FLG_CONSTTIME behavior. 2372 [Bodo Moeller (Google)] 2373 2374 *) Netware support: 2375 2376 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2377 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2378 - added some more tests to do_tests.pl 2379 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2380 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2381 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2382 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2383 - various changes to netware.pl to enable gcc-cross builds on Win32 2384 platform 2385 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2386 - various changes to fix missing prototype warnings 2387 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2388 - added AES, WHIRLPOOL and CPUID assembler code to build files 2389 - added missing AES assembler make rules to mk1mf.pl 2390 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2391 [Guenter Knauf <eflash@gmx.net>] 2392 2393 *) Implement certificate status request TLS extension defined in RFC3546. 2394 A client can set the appropriate parameters and receive the encoded 2395 OCSP response via a callback. A server can query the supplied parameters 2396 and set the encoded OCSP response in the callback. Add simplified examples 2397 to s_client and s_server. 2398 [Steve Henson] 2399 2400 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2401 2402 *) Fix various bugs: 2403 + Binary incompatibility of ssl_ctx_st structure 2404 + DTLS interoperation with non-compliant servers 2405 + Don't call get_session_cb() without proposed session 2406 + Fix ia64 assembler code 2407 [Andy Polyakov, Steve Henson] 2408 2409 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2410 2411 *) DTLS Handshake overhaul. There were longstanding issues with 2412 OpenSSL DTLS implementation, which were making it impossible for 2413 RFC 4347 compliant client to communicate with OpenSSL server. 2414 Unfortunately just fixing these incompatibilities would "cut off" 2415 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2416 server keeps tolerating non RFC compliant syntax. The opposite is 2417 not true, 0.9.8f client can not communicate with earlier server. 2418 This update even addresses CVE-2007-4995. 2419 [Andy Polyakov] 2420 2421 *) Changes to avoid need for function casts in OpenSSL: some compilers 2422 (gcc 4.2 and later) reject their use. 2423 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2424 Steve Henson] 2425 2426 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2427 RFC4507bis. The encrypted ticket format is an encrypted encoded 2428 SSL_SESSION structure, that way new session features are automatically 2429 supported. 2430 2431 If a client application caches session in an SSL_SESSION structure 2432 support is transparent because tickets are now stored in the encoded 2433 SSL_SESSION. 2434 2435 The SSL_CTX structure automatically generates keys for ticket 2436 protection in servers so again support should be possible 2437 with no application modification. 2438 2439 If a client or server wishes to disable RFC4507 support then the option 2440 SSL_OP_NO_TICKET can be set. 2441 2442 Add a TLS extension debugging callback to allow the contents of any client 2443 or server extensions to be examined. 2444 2445 This work was sponsored by Google. 2446 [Steve Henson] 2447 2448 *) Add initial support for TLS extensions, specifically for the server_name 2449 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2450 have new members for a host name. The SSL data structure has an 2451 additional member SSL_CTX *initial_ctx so that new sessions can be 2452 stored in that context to allow for session resumption, even after the 2453 SSL has been switched to a new SSL_CTX in reaction to a client's 2454 server_name extension. 2455 2456 New functions (subject to change): 2457 2458 SSL_get_servername() 2459 SSL_get_servername_type() 2460 SSL_set_SSL_CTX() 2461 2462 New CTRL codes and macros (subject to change): 2463 2464 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2465 - SSL_CTX_set_tlsext_servername_callback() 2466 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2467 - SSL_CTX_set_tlsext_servername_arg() 2468 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2469 2470 openssl s_client has a new '-servername ...' option. 2471 2472 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2473 '-key2 ...', '-servername_fatal' (subject to change). This allows 2474 testing the HostName extension for a specific single host name ('-cert' 2475 and '-key' remain fallbacks for handshakes without HostName 2476 negotiation). If the unrecogninzed_name alert has to be sent, this by 2477 default is a warning; it becomes fatal with the '-servername_fatal' 2478 option. 2479 2480 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2481 2482 *) Add AES and SSE2 assembly language support to VC++ build. 2483 [Steve Henson] 2484 2485 *) Mitigate attack on final subtraction in Montgomery reduction. 2486 [Andy Polyakov] 2487 2488 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2489 (which previously caused an internal error). 2490 [Bodo Moeller] 2491 2492 *) Squeeze another 10% out of IGE mode when in != out. 2493 [Ben Laurie] 2494 2495 *) AES IGE mode speedup. 2496 [Dean Gaudet (Google)] 2497 2498 *) Add the Korean symmetric 128-bit cipher SEED (see 2499 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2500 add SEED ciphersuites from RFC 4162: 2501 2502 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2503 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2504 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2505 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2506 2507 To minimize changes between patchlevels in the OpenSSL 0.9.8 2508 series, SEED remains excluded from compilation unless OpenSSL 2509 is configured with 'enable-seed'. 2510 [KISA, Bodo Moeller] 2511 2512 *) Mitigate branch prediction attacks, which can be practical if a 2513 single processor is shared, allowing a spy process to extract 2514 information. For detailed background information, see 2515 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2516 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2517 and Necessary Software Countermeasures"). The core of the change 2518 are new versions BN_div_no_branch() and 2519 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2520 respectively, which are slower, but avoid the security-relevant 2521 conditional branches. These are automatically called by BN_div() 2522 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2523 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2524 remove a conditional branch. 2525 2526 BN_FLG_CONSTTIME is the new name for the previous 2527 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2528 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2529 in the exponent causes BN_mod_exp_mont() to use the alternative 2530 implementation in BN_mod_exp_mont_consttime().) The old name 2531 remains as a deprecated alias. 2532 2533 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2534 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2535 constant-time implementations for more than just exponentiation. 2536 Here too the old name is kept as a deprecated alias. 2537 2538 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2539 the BN_BLINDING structure gets an independent copy of the 2540 modulus. This means that the previous "BIGNUM *m" argument to 2541 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2542 essentially becomes "const BIGNUM *m", although we can't actually 2543 change this in the header file before 0.9.9. It allows 2544 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2545 enable BN_FLG_CONSTTIME. 2546 2547 [Matthew D Wood (Intel Corp)] 2548 2549 *) In the SSL/TLS server implementation, be strict about session ID 2550 context matching (which matters if an application uses a single 2551 external cache for different purposes). Previously, 2552 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2553 set. This did ensure strict client verification, but meant that, 2554 with applications using a single external cache for quite 2555 different requirements, clients could circumvent ciphersuite 2556 restrictions for a given session ID context by starting a session 2557 in a different context. 2558 [Bodo Moeller] 2559 2560 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2561 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2562 authentication-only ciphersuites. 2563 [Bodo Moeller] 2564 2565 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2566 not complete and could lead to a possible single byte overflow 2567 (CVE-2007-5135) [Ben Laurie] 2568 2569 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2570 2571 *) Since AES128 and AES256 (and similarly Camellia128 and 2572 Camellia256) share a single mask bit in the logic of 2573 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2574 kludge to work properly if AES128 is available and AES256 isn't 2575 (or if Camellia128 is available and Camellia256 isn't). 2576 [Victor Duchovni] 2577 2578 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2579 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2580 When a point or a seed is encoded in a BIT STRING, we need to 2581 prevent the removal of trailing zero bits to get the proper DER 2582 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2583 of a NamedBitList, for which trailing 0 bits need to be removed.) 2584 [Bodo Moeller] 2585 2586 *) Have SSL/TLS server implementation tolerate "mismatched" record 2587 protocol version while receiving ClientHello even if the 2588 ClientHello is fragmented. (The server can't insist on the 2589 particular protocol version it has chosen before the ServerHello 2590 message has informed the client about his choice.) 2591 [Bodo Moeller] 2592 2593 *) Add RFC 3779 support. 2594 [Rob Austein for ARIN, Ben Laurie] 2595 2596 *) Load error codes if they are not already present instead of using a 2597 static variable. This allows them to be cleanly unloaded and reloaded. 2598 Improve header file function name parsing. 2599 [Steve Henson] 2600 2601 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2602 or CAPABILITY handshake as required by RFCs. 2603 [Goetz Babin-Ebell] 2604 2605 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2606 2607 *) Introduce limits to prevent malicious keys being able to 2608 cause a denial of service. (CVE-2006-2940) 2609 [Steve Henson, Bodo Moeller] 2610 2611 *) Fix ASN.1 parsing of certain invalid structures that can result 2612 in a denial of service. (CVE-2006-2937) [Steve Henson] 2613 2614 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2615 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2616 2617 *) Fix SSL client code which could crash if connecting to a 2618 malicious SSLv2 server. (CVE-2006-4343) 2619 [Tavis Ormandy and Will Drewry, Google Security Team] 2620 2621 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2622 match only those. Before that, "AES256-SHA" would be interpreted 2623 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2624 the same strength classification in 0.9.7h) as we currently only 2625 have a single AES bit in the ciphersuite description bitmap. 2626 That change, however, also applied to ciphersuite strings such as 2627 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2628 namely, SSL 2.0 ciphersuites in addition to the more common ones 2629 from SSL 3.0/TLS 1.0. 2630 2631 So we change the selection algorithm again: Naming an explicit 2632 ciphersuite selects this one ciphersuite, and any other similar 2633 ciphersuite (same bitmap) from *other* protocol versions. 2634 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2635 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2636 2637 Since SSL 2.0 does not have any ciphersuites for which the 2638 128/256 bit distinction would be relevant, this works for now. 2639 The proper fix will be to use different bits for AES128 and 2640 AES256, which would have avoided the problems from the beginning; 2641 however, bits are scarce, so we can only do this in a new release 2642 (not just a patchlevel) when we can change the SSL_CIPHER 2643 definition to split the single 'unsigned long mask' bitmap into 2644 multiple values to extend the available space. 2645 2646 [Bodo Moeller] 2647 2648 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2649 2650 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2651 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2652 2653 *) Add AES IGE and biIGE modes. 2654 [Ben Laurie] 2655 2656 *) Change the Unix randomness entropy gathering to use poll() when 2657 possible instead of select(), since the latter has some 2658 undesirable limitations. 2659 [Darryl Miles via Richard Levitte and Bodo Moeller] 2660 2661 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2662 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2663 cannot be implicitly activated as part of, e.g., the "AES" alias. 2664 However, please upgrade to OpenSSL 0.9.9[-dev] for 2665 non-experimental use of the ECC ciphersuites to get TLS extension 2666 support, which is required for curve and point format negotiation 2667 to avoid potential handshake problems. 2668 [Bodo Moeller] 2669 2670 *) Disable rogue ciphersuites: 2671 2672 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2673 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2674 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2675 2676 The latter two were purportedly from 2677 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2678 appear there. 2679 2680 Also deactivate the remaining ciphersuites from 2681 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2682 unofficial, and the ID has long expired. 2683 [Bodo Moeller] 2684 2685 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2686 dual-core machines) and other potential thread-safety issues. 2687 [Bodo Moeller] 2688 2689 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2690 versions), which is now available for royalty-free use 2691 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2692 Also, add Camellia TLS ciphersuites from RFC 4132. 2693 2694 To minimize changes between patchlevels in the OpenSSL 0.9.8 2695 series, Camellia remains excluded from compilation unless OpenSSL 2696 is configured with 'enable-camellia'. 2697 [NTT] 2698 2699 *) Disable the padding bug check when compression is in use. The padding 2700 bug check assumes the first packet is of even length, this is not 2701 necessarily true if compresssion is enabled and can result in false 2702 positives causing handshake failure. The actual bug test is ancient 2703 code so it is hoped that implementations will either have fixed it by 2704 now or any which still have the bug do not support compression. 2705 [Steve Henson] 2706 2707 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2708 2709 *) When applying a cipher rule check to see if string match is an explicit 2710 cipher suite and only match that one cipher suite if it is. 2711 [Steve Henson] 2712 2713 *) Link in manifests for VC++ if needed. 2714 [Austin Ziegler <halostatue@gmail.com>] 2715 2716 *) Update support for ECC-based TLS ciphersuites according to 2717 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2718 TLS extensions, which are supported starting with the 0.9.9 2719 branch, not in the OpenSSL 0.9.8 branch). 2720 [Douglas Stebila] 2721 2722 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2723 opaque EVP_CIPHER_CTX handling. 2724 [Steve Henson] 2725 2726 *) Fixes and enhancements to zlib compression code. We now only use 2727 "zlib1.dll" and use the default __cdecl calling convention on Win32 2728 to conform with the standards mentioned here: 2729 http://www.zlib.net/DLL_FAQ.txt 2730 Static zlib linking now works on Windows and the new --with-zlib-include 2731 --with-zlib-lib options to Configure can be used to supply the location 2732 of the headers and library. Gracefully handle case where zlib library 2733 can't be loaded. 2734 [Steve Henson] 2735 2736 *) Several fixes and enhancements to the OID generation code. The old code 2737 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2738 handle numbers larger than ULONG_MAX, truncated printing and had a 2739 non standard OBJ_obj2txt() behaviour. 2740 [Steve Henson] 2741 2742 *) Add support for building of engines under engine/ as shared libraries 2743 under VC++ build system. 2744 [Steve Henson] 2745 2746 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2747 Hopefully, we will not see any false combination of paths any more. 2748 [Richard Levitte] 2749 2750 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2751 2752 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2753 (part of SSL_OP_ALL). This option used to disable the 2754 countermeasure against man-in-the-middle protocol-version 2755 rollback in the SSL 2.0 server implementation, which is a bad 2756 idea. (CVE-2005-2969) 2757 2758 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2759 for Information Security, National Institute of Advanced Industrial 2760 Science and Technology [AIST], Japan)] 2761 2762 *) Add two function to clear and return the verify parameter flags. 2763 [Steve Henson] 2764 2765 *) Keep cipherlists sorted in the source instead of sorting them at 2766 runtime, thus removing the need for a lock. 2767 [Nils Larsch] 2768 2769 *) Avoid some small subgroup attacks in Diffie-Hellman. 2770 [Nick Mathewson and Ben Laurie] 2771 2772 *) Add functions for well-known primes. 2773 [Nick Mathewson] 2774 2775 *) Extended Windows CE support. 2776 [Satoshi Nakamura and Andy Polyakov] 2777 2778 *) Initialize SSL_METHOD structures at compile time instead of during 2779 runtime, thus removing the need for a lock. 2780 [Steve Henson] 2781 2782 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2783 attempting to decrypt each encrypted key in turn. Add support to 2784 smime utility. 2785 [Steve Henson] 2786 2787 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2788 2789 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2790 OpenSSL 0.9.8.] 2791 2792 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2793 [Richard Levitte] 2794 2795 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2796 key into the same file any more. 2797 [Richard Levitte] 2798 2799 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2800 [Andy Polyakov] 2801 2802 *) Add -utf8 command line and config file option to 'ca'. 2803 [Stefan <stf@udoma.org] 2804 2805 *) Removed the macro des_crypt(), as it seems to conflict with some 2806 libraries. Use DES_crypt(). 2807 [Richard Levitte] 2808 2809 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2810 involves renaming the source and generated shared-libs for 2811 both. The engines will accept the corrected or legacy ids 2812 ('ncipher' and '4758_cca' respectively) when binding. NB, 2813 this only applies when building 'shared'. 2814 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2815 2816 *) Add attribute functions to EVP_PKEY structure. Modify 2817 PKCS12_create() to recognize a CSP name attribute and 2818 use it. Make -CSP option work again in pkcs12 utility. 2819 [Steve Henson] 2820 2821 *) Add new functionality to the bn blinding code: 2822 - automatic re-creation of the BN_BLINDING parameters after 2823 a fixed number of uses (currently 32) 2824 - add new function for parameter creation 2825 - introduce flags to control the update behaviour of the 2826 BN_BLINDING parameters 2827 - hide BN_BLINDING structure 2828 Add a second BN_BLINDING slot to the RSA structure to improve 2829 performance when a single RSA object is shared among several 2830 threads. 2831 [Nils Larsch] 2832 2833 *) Add support for DTLS. 2834 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2835 2836 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2837 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2838 [Walter Goulet] 2839 2840 *) Remove buggy and incompletet DH cert support from 2841 ssl/ssl_rsa.c and ssl/s3_both.c 2842 [Nils Larsch] 2843 2844 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2845 the apps/openssl applications. 2846 [Nils Larsch] 2847 2848 *) Compile clean with "-Wall -Wmissing-prototypes 2849 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2850 DEBUG_SAFESTACK must also be set. 2851 [Ben Laurie] 2852 2853 *) Change ./Configure so that certain algorithms can be disabled by default. 2854 The new counterpiece to "no-xxx" is "enable-xxx". 2855 2856 The patented RC5 and MDC2 algorithms will now be disabled unless 2857 "enable-rc5" and "enable-mdc2", respectively, are specified. 2858 2859 (IDEA remains enabled despite being patented. This is because IDEA 2860 is frequently required for interoperability, and there is no license 2861 fee for non-commercial use. As before, "no-idea" can be used to 2862 avoid this algorithm.) 2863 2864 [Bodo Moeller] 2865 2866 *) Add processing of proxy certificates (see RFC 3820). This work was 2867 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2868 EGEE (Enabling Grids for E-science in Europe). 2869 [Richard Levitte] 2870 2871 *) RC4 performance overhaul on modern architectures/implementations, such 2872 as Intel P4, IA-64 and AMD64. 2873 [Andy Polyakov] 2874 2875 *) New utility extract-section.pl. This can be used specify an alternative 2876 section number in a pod file instead of having to treat each file as 2877 a separate case in Makefile. This can be done by adding two lines to the 2878 pod file: 2879 2880 =for comment openssl_section:XXX 2881 2882 The blank line is mandatory. 2883 2884 [Steve Henson] 2885 2886 *) New arguments -certform, -keyform and -pass for s_client and s_server 2887 to allow alternative format key and certificate files and passphrase 2888 sources. 2889 [Steve Henson] 2890 2891 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2892 update associated structures and add various utility functions. 2893 2894 Add new policy related verify parameters, include policy checking in 2895 standard verify code. Enhance 'smime' application with extra parameters 2896 to support policy checking and print out. 2897 [Steve Henson] 2898 2899 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2900 Nehemiah processors. These extensions support AES encryption in hardware 2901 as well as RNG (though RNG support is currently disabled). 2902 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2903 2904 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2905 [Geoff Thorpe] 2906 2907 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2908 [Andy Polyakov and a number of other people] 2909 2910 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2911 implementation contributed by IBM. 2912 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2913 2914 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2915 exponent rather than 'unsigned long'. There is a corresponding change to 2916 the new 'rsa_keygen' element of the RSA_METHOD structure. 2917 [Jelte Jansen, Geoff Thorpe] 2918 2919 *) Functionality for creating the initial serial number file is now 2920 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2921 2922 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2923 number file to 1, which is bound to cause problems. To avoid 2924 the problems while respecting compatibility between different 0.9.7 2925 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2926 CA.pl for serial number initialization. With the new release 0.9.8, 2927 we can fix the problem directly in the 'ca' utility.) 2928 [Steve Henson] 2929 2930 *) Reduced header interdepencies by declaring more opaque objects in 2931 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2932 give fewer recursive includes, which could break lazy source code - so 2933 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2934 developers should define this symbol when building and using openssl to 2935 ensure they track the recommended behaviour, interfaces, [etc], but 2936 backwards-compatible behaviour prevails when this isn't defined. 2937 [Geoff Thorpe] 2938 2939 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2940 [Steve Henson] 2941 2942 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2943 This will generate a random key of the appropriate length based on the 2944 cipher context. The EVP_CIPHER can provide its own random key generation 2945 routine to support keys of a specific form. This is used in the des and 2946 3des routines to generate a key of the correct parity. Update S/MIME 2947 code to use new functions and hence generate correct parity DES keys. 2948 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2949 valid (weak or incorrect parity). 2950 [Steve Henson] 2951 2952 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2953 as looking them up. This is useful when the verified structure may contain 2954 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2955 present unless the new PKCS7_NO_CRL flag is asserted. 2956 [Steve Henson] 2957 2958 *) Extend ASN1 oid configuration module. It now additionally accepts the 2959 syntax: 2960 2961 shortName = some long name, 1.2.3.4 2962 [Steve Henson] 2963 2964 *) Reimplemented the BN_CTX implementation. There is now no more static 2965 limitation on the number of variables it can handle nor the depth of the 2966 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2967 information can now expand as required, and rather than having a single 2968 static array of bignums, BN_CTX now uses a linked-list of such arrays 2969 allowing it to expand on demand whilst maintaining the usefulness of 2970 BN_CTX's "bundling". 2971 [Geoff Thorpe] 2972 2973 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2974 to allow all RSA operations to function using a single BN_CTX. 2975 [Geoff Thorpe] 2976 2977 *) Preliminary support for certificate policy evaluation and checking. This 2978 is initially intended to pass the tests outlined in "Conformance Testing 2979 of Relying Party Client Certificate Path Processing Logic" v1.07. 2980 [Steve Henson] 2981 2982 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2983 remained unused and not that useful. A variety of other little bignum 2984 tweaks and fixes have also been made continuing on from the audit (see 2985 below). 2986 [Geoff Thorpe] 2987 2988 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2989 associated ASN1, EVP and SSL functions and old ASN1 macros. 2990 [Richard Levitte] 2991 2992 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2993 and this should never fail. So the return value from the use of 2994 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2995 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2996 [Geoff Thorpe] 2997 2998 *) BN_CTX_get() should return zero-valued bignums, providing the same 2999 initialised value as BN_new(). 3000 [Geoff Thorpe, suggested by Ulf M�ller] 3001 3002 *) Support for inhibitAnyPolicy certificate extension. 3003 [Steve Henson] 3004 3005 *) An audit of the BIGNUM code is underway, for which debugging code is 3006 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 3007 is considered valid when processing BIGNUMs, and causes execution to 3008 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 3009 further steps are taken to deliberately pollute unused data in BIGNUM 3010 structures to try and expose faulty code further on. For now, openssl will 3011 (in its default mode of operation) continue to tolerate the inconsistent 3012 forms that it has tolerated in the past, but authors and packagers should 3013 consider trying openssl and their own applications when compiled with 3014 these debugging symbols defined. It will help highlight potential bugs in 3015 their own code, and will improve the test coverage for OpenSSL itself. At 3016 some point, these tighter rules will become openssl's default to improve 3017 maintainability, though the assert()s and other overheads will remain only 3018 in debugging configurations. See bn.h for more details. 3019 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 3020 3021 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 3022 that can only be obtained through BN_CTX_new() (which implicitly 3023 initialises it). The presence of this function only made it possible 3024 to overwrite an existing structure (and cause memory leaks). 3025 [Geoff Thorpe] 3026 3027 *) Because of the callback-based approach for implementing LHASH as a 3028 template type, lh_insert() adds opaque objects to hash-tables and 3029 lh_doall() or lh_doall_arg() are typically used with a destructor callback 3030 to clean up those corresponding objects before destroying the hash table 3031 (and losing the object pointers). So some over-zealous constifications in 3032 LHASH have been relaxed so that lh_insert() does not take (nor store) the 3033 objects as "const" and the lh_doall[_arg] callback wrappers are not 3034 prototyped to have "const" restrictions on the object pointers they are 3035 given (and so aren't required to cast them away any more). 3036 [Geoff Thorpe] 3037 3038 *) The tmdiff.h API was so ugly and minimal that our own timing utility 3039 (speed) prefers to use its own implementation. The two implementations 3040 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 3041 its object type properly exposed (MS_TM) instead of casting to/from "char 3042 *". This may still change yet if someone realises MS_TM and "ms_time_***" 3043 aren't necessarily the greatest nomenclatures - but this is what was used 3044 internally to the implementation so I've used that for now. 3045 [Geoff Thorpe] 3046 3047 *) Ensure that deprecated functions do not get compiled when 3048 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 3049 the self-tests were still using deprecated key-generation functions so 3050 these have been updated also. 3051 [Geoff Thorpe] 3052 3053 *) Reorganise PKCS#7 code to separate the digest location functionality 3054 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 3055 New function PKCS7_set_digest() to set the digest type for PKCS#7 3056 digestedData type. Add additional code to correctly generate the 3057 digestedData type and add support for this type in PKCS7 initialization 3058 functions. 3059 [Steve Henson] 3060 3061 *) New function PKCS7_set0_type_other() this initializes a PKCS7 3062 structure of type "other". 3063 [Steve Henson] 3064 3065 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 3066 sure the loop does correctly stop and breaking ("division by zero") 3067 modulus operations are not performed. The (pre-generated) prime 3068 table crypto/bn/bn_prime.h was already correct, but it could not be 3069 re-generated on some platforms because of the "division by zero" 3070 situation in the script. 3071 [Ralf S. Engelschall] 3072 3073 *) Update support for ECC-based TLS ciphersuites according to 3074 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 3075 SHA-1 now is only used for "small" curves (where the 3076 representation of a field element takes up to 24 bytes); for 3077 larger curves, the field element resulting from ECDH is directly 3078 used as premaster secret. 3079 [Douglas Stebila (Sun Microsystems Laboratories)] 3080 3081 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 3082 curve secp160r1 to the tests. 3083 [Douglas Stebila (Sun Microsystems Laboratories)] 3084 3085 *) Add the possibility to load symbols globally with DSO. 3086 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 3087 3088 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 3089 control of the error stack. 3090 [Richard Levitte] 3091 3092 *) Add support for STORE in ENGINE. 3093 [Richard Levitte] 3094 3095 *) Add the STORE type. The intention is to provide a common interface 3096 to certificate and key stores, be they simple file-based stores, or 3097 HSM-type store, or LDAP stores, or... 3098 NOTE: The code is currently UNTESTED and isn't really used anywhere. 3099 [Richard Levitte] 3100 3101 *) Add a generic structure called OPENSSL_ITEM. This can be used to 3102 pass a list of arguments to any function as well as provide a way 3103 for a function to pass data back to the caller. 3104 [Richard Levitte] 3105 3106 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 3107 works like BUF_strdup() but can be used to duplicate a portion of 3108 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 3109 a memory area. 3110 [Richard Levitte] 3111 3112 *) Add the function sk_find_ex() which works like sk_find(), but will 3113 return an index to an element even if an exact match couldn't be 3114 found. The index is guaranteed to point at the element where the 3115 searched-for key would be inserted to preserve sorting order. 3116 [Richard Levitte] 3117 3118 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 3119 takes an extra flags argument for optional functionality. Currently, 3120 the following flags are defined: 3121 3122 OBJ_BSEARCH_VALUE_ON_NOMATCH 3123 This one gets OBJ_bsearch_ex() to return a pointer to the first 3124 element where the comparing function returns a negative or zero 3125 number. 3126 3127 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 3128 This one gets OBJ_bsearch_ex() to return a pointer to the first 3129 element where the comparing function returns zero. This is useful 3130 if there are more than one element where the comparing function 3131 returns zero. 3132 [Richard Levitte] 3133 3134 *) Make it possible to create self-signed certificates with 'openssl ca' 3135 in such a way that the self-signed certificate becomes part of the 3136 CA database and uses the same mechanisms for serial number generation 3137 as all other certificate signing. The new flag '-selfsign' enables 3138 this functionality. Adapt CA.sh and CA.pl.in. 3139 [Richard Levitte] 3140 3141 *) Add functionality to check the public key of a certificate request 3142 against a given private. This is useful to check that a certificate 3143 request can be signed by that key (self-signing). 3144 [Richard Levitte] 3145 3146 *) Make it possible to have multiple active certificates with the same 3147 subject in the CA index file. This is done only if the keyword 3148 'unique_subject' is set to 'no' in the main CA section (default 3149 if 'CA_default') of the configuration file. The value is saved 3150 with the database itself in a separate index attribute file, 3151 named like the index file with '.attr' appended to the name. 3152 [Richard Levitte] 3153 3154 *) Generate muti valued AVAs using '+' notation in config files for 3155 req and dirName. 3156 [Steve Henson] 3157 3158 *) Support for nameConstraints certificate extension. 3159 [Steve Henson] 3160 3161 *) Support for policyConstraints certificate extension. 3162 [Steve Henson] 3163 3164 *) Support for policyMappings certificate extension. 3165 [Steve Henson] 3166 3167 *) Make sure the default DSA_METHOD implementation only uses its 3168 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3169 and change its own handlers to be NULL so as to remove unnecessary 3170 indirection. This lets alternative implementations fallback to the 3171 default implementation more easily. 3172 [Geoff Thorpe] 3173 3174 *) Support for directoryName in GeneralName related extensions 3175 in config files. 3176 [Steve Henson] 3177 3178 *) Make it possible to link applications using Makefile.shared. 3179 Make that possible even when linking against static libraries! 3180 [Richard Levitte] 3181 3182 *) Support for single pass processing for S/MIME signing. This now 3183 means that S/MIME signing can be done from a pipe, in addition 3184 cleartext signing (multipart/signed type) is effectively streaming 3185 and the signed data does not need to be all held in memory. 3186 3187 This is done with a new flag PKCS7_STREAM. When this flag is set 3188 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3189 is done after the data is output (and digests calculated) in 3190 SMIME_write_PKCS7(). 3191 [Steve Henson] 3192 3193 *) Add full support for -rpath/-R, both in shared libraries and 3194 applications, at least on the platforms where it's known how 3195 to do it. 3196 [Richard Levitte] 3197 3198 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3199 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3200 will now compute a table of multiples of the generator that 3201 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3202 faster (notably in the case of a single point multiplication, 3203 scalar * generator). 3204 [Nils Larsch, Bodo Moeller] 3205 3206 *) IPv6 support for certificate extensions. The various extensions 3207 which use the IP:a.b.c.d can now take IPv6 addresses using the 3208 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3209 correctly. 3210 [Steve Henson] 3211 3212 *) Added an ENGINE that implements RSA by performing private key 3213 exponentiations with the GMP library. The conversions to and from 3214 GMP's mpz_t format aren't optimised nor are any montgomery forms 3215 cached, and on x86 it appears OpenSSL's own performance has caught up. 3216 However there are likely to be other architectures where GMP could 3217 provide a boost. This ENGINE is not built in by default, but it can be 3218 specified at Configure time and should be accompanied by the necessary 3219 linker additions, eg; 3220 ./config -DOPENSSL_USE_GMP -lgmp 3221 [Geoff Thorpe] 3222 3223 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3224 testing availability of engines with "-t" - the old behaviour is 3225 produced by increasing the feature's verbosity with "-tt". 3226 [Geoff Thorpe] 3227 3228 *) ECDSA routines: under certain error conditions uninitialized BN objects 3229 could be freed. Solution: make sure initialization is performed early 3230 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3231 via PR#459) 3232 [Lutz Jaenicke] 3233 3234 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3235 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3236 software implementations. For DSA and DH, parameter generation can 3237 also be overriden by providing the appropriate method callbacks. 3238 [Geoff Thorpe] 3239 3240 *) Change the "progress" mechanism used in key-generation and 3241 primality testing to functions that take a new BN_GENCB pointer in 3242 place of callback/argument pairs. The new API functions have "_ex" 3243 postfixes and the older functions are reimplemented as wrappers for 3244 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3245 declarations of the old functions to help (graceful) attempts to 3246 migrate to the new functions. Also, the new key-generation API 3247 functions operate on a caller-supplied key-structure and return 3248 success/failure rather than returning a key or NULL - this is to 3249 help make "keygen" another member function of RSA_METHOD etc. 3250 3251 Example for using the new callback interface: 3252 3253 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3254 void *my_arg = ...; 3255 BN_GENCB my_cb; 3256 3257 BN_GENCB_set(&my_cb, my_callback, my_arg); 3258 3259 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3260 /* For the meaning of a, b in calls to my_callback(), see the 3261 * documentation of the function that calls the callback. 3262 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3263 * my_callback should return 1 if it wants BN_is_prime_ex() 3264 * to continue, or 0 to stop. 3265 */ 3266 3267 [Geoff Thorpe] 3268 3269 *) Change the ZLIB compression method to be stateful, and make it 3270 available to TLS with the number defined in 3271 draft-ietf-tls-compression-04.txt. 3272 [Richard Levitte] 3273 3274 *) Add the ASN.1 structures and functions for CertificatePair, which 3275 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3276 3277 CertificatePair ::= SEQUENCE { 3278 forward [0] Certificate OPTIONAL, 3279 reverse [1] Certificate OPTIONAL, 3280 -- at least one of the pair shall be present -- } 3281 3282 Also implement the PEM functions to read and write certificate 3283 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3284 3285 This needed to be defined, mostly for the sake of the LDAP 3286 attribute crossCertificatePair, but may prove useful elsewhere as 3287 well. 3288 [Richard Levitte] 3289 3290 *) Make it possible to inhibit symlinking of shared libraries in 3291 Makefile.shared, for Cygwin's sake. 3292 [Richard Levitte] 3293 3294 *) Extend the BIGNUM API by creating a function 3295 void BN_set_negative(BIGNUM *a, int neg); 3296 and a macro that behave like 3297 int BN_is_negative(const BIGNUM *a); 3298 3299 to avoid the need to access 'a->neg' directly in applications. 3300 [Nils Larsch] 3301 3302 *) Implement fast modular reduction for pseudo-Mersenne primes 3303 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3304 EC_GROUP_new_curve_GFp() will now automatically use this 3305 if applicable. 3306 [Nils Larsch <nla@trustcenter.de>] 3307 3308 *) Add new lock type (CRYPTO_LOCK_BN). 3309 [Bodo Moeller] 3310 3311 *) Change the ENGINE framework to automatically load engines 3312 dynamically from specific directories unless they could be 3313 found to already be built in or loaded. Move all the 3314 current engines except for the cryptodev one to a new 3315 directory engines/. 3316 The engines in engines/ are built as shared libraries if 3317 the "shared" options was given to ./Configure or ./config. 3318 Otherwise, they are inserted in libcrypto.a. 3319 /usr/local/ssl/engines is the default directory for dynamic 3320 engines, but that can be overriden at configure time through 3321 the usual use of --prefix and/or --openssldir, and at run 3322 time with the environment variable OPENSSL_ENGINES. 3323 [Geoff Thorpe and Richard Levitte] 3324 3325 *) Add Makefile.shared, a helper makefile to build shared 3326 libraries. Addapt Makefile.org. 3327 [Richard Levitte] 3328 3329 *) Add version info to Win32 DLLs. 3330 [Peter 'Luna' Runestig" <peter@runestig.com>] 3331 3332 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3333 can be added using this API to created arbitrary PKCS#12 3334 files while avoiding the low level API. 3335 3336 New options to PKCS12_create(), key or cert can be NULL and 3337 will then be omitted from the output file. The encryption 3338 algorithm NIDs can be set to -1 for no encryption, the mac 3339 iteration count can be set to 0 to omit the mac. 3340 3341 Enhance pkcs12 utility by making the -nokeys and -nocerts 3342 options work when creating a PKCS#12 file. New option -nomac 3343 to omit the mac, NONE can be set for an encryption algorithm. 3344 New code is modified to use the enhanced PKCS12_create() 3345 instead of the low level API. 3346 [Steve Henson] 3347 3348 *) Extend ASN1 encoder to support indefinite length constructed 3349 encoding. This can output sequences tags and octet strings in 3350 this form. Modify pk7_asn1.c to support indefinite length 3351 encoding. This is experimental and needs additional code to 3352 be useful, such as an ASN1 bio and some enhanced streaming 3353 PKCS#7 code. 3354 3355 Extend template encode functionality so that tagging is passed 3356 down to the template encoder. 3357 [Steve Henson] 3358 3359 *) Let 'openssl req' fail if an argument to '-newkey' is not 3360 recognized instead of using RSA as a default. 3361 [Bodo Moeller] 3362 3363 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3364 As these are not official, they are not included in "ALL"; 3365 the "ECCdraft" ciphersuite group alias can be used to select them. 3366 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3367 3368 *) Add ECDH engine support. 3369 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3370 3371 *) Add ECDH in new directory crypto/ecdh/. 3372 [Douglas Stebila (Sun Microsystems Laboratories)] 3373 3374 *) Let BN_rand_range() abort with an error after 100 iterations 3375 without success (which indicates a broken PRNG). 3376 [Bodo Moeller] 3377 3378 *) Change BN_mod_sqrt() so that it verifies that the input value 3379 is really the square of the return value. (Previously, 3380 BN_mod_sqrt would show GIGO behaviour.) 3381 [Bodo Moeller] 3382 3383 *) Add named elliptic curves over binary fields from X9.62, SECG, 3384 and WAP/WTLS; add OIDs that were still missing. 3385 3386 [Sheueling Chang Shantz and Douglas Stebila 3387 (Sun Microsystems Laboratories)] 3388 3389 *) Extend the EC library for elliptic curves over binary fields 3390 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3391 New EC_METHOD: 3392 3393 EC_GF2m_simple_method 3394 3395 New API functions: 3396 3397 EC_GROUP_new_curve_GF2m 3398 EC_GROUP_set_curve_GF2m 3399 EC_GROUP_get_curve_GF2m 3400 EC_POINT_set_affine_coordinates_GF2m 3401 EC_POINT_get_affine_coordinates_GF2m 3402 EC_POINT_set_compressed_coordinates_GF2m 3403 3404 Point compression for binary fields is disabled by default for 3405 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3406 enable it). 3407 3408 As binary polynomials are represented as BIGNUMs, various members 3409 of the EC_GROUP and EC_POINT data structures can be shared 3410 between the implementations for prime fields and binary fields; 3411 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3412 are essentially identical to their ..._GFp counterparts. 3413 (For simplicity, the '..._GFp' prefix has been dropped from 3414 various internal method names.) 3415 3416 An internal 'field_div' method (similar to 'field_mul' and 3417 'field_sqr') has been added; this is used only for binary fields. 3418 3419 [Sheueling Chang Shantz and Douglas Stebila 3420 (Sun Microsystems Laboratories)] 3421 3422 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3423 through methods ('mul', 'precompute_mult'). 3424 3425 The generic implementations (now internally called 'ec_wNAF_mul' 3426 and 'ec_wNAF_precomputed_mult') remain the default if these 3427 methods are undefined. 3428 3429 [Sheueling Chang Shantz and Douglas Stebila 3430 (Sun Microsystems Laboratories)] 3431 3432 *) New function EC_GROUP_get_degree, which is defined through 3433 EC_METHOD. For curves over prime fields, this returns the bit 3434 length of the modulus. 3435 3436 [Sheueling Chang Shantz and Douglas Stebila 3437 (Sun Microsystems Laboratories)] 3438 3439 *) New functions EC_GROUP_dup, EC_POINT_dup. 3440 (These simply call ..._new and ..._copy). 3441 3442 [Sheueling Chang Shantz and Douglas Stebila 3443 (Sun Microsystems Laboratories)] 3444 3445 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3446 Polynomials are represented as BIGNUMs (where the sign bit is not 3447 used) in the following functions [macros]: 3448 3449 BN_GF2m_add 3450 BN_GF2m_sub [= BN_GF2m_add] 3451 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3452 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3453 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3454 BN_GF2m_mod_inv 3455 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3456 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3457 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3458 BN_GF2m_cmp [= BN_ucmp] 3459 3460 (Note that only the 'mod' functions are actually for fields GF(2^m). 3461 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3462 3463 For some functions, an the irreducible polynomial defining a 3464 field can be given as an 'unsigned int[]' with strictly 3465 decreasing elements giving the indices of those bits that are set; 3466 i.e., p[] represents the polynomial 3467 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3468 where 3469 p[0] > p[1] > ... > p[k] = 0. 3470 This applies to the following functions: 3471 3472 BN_GF2m_mod_arr 3473 BN_GF2m_mod_mul_arr 3474 BN_GF2m_mod_sqr_arr 3475 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3476 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3477 BN_GF2m_mod_exp_arr 3478 BN_GF2m_mod_sqrt_arr 3479 BN_GF2m_mod_solve_quad_arr 3480 BN_GF2m_poly2arr 3481 BN_GF2m_arr2poly 3482 3483 Conversion can be performed by the following functions: 3484 3485 BN_GF2m_poly2arr 3486 BN_GF2m_arr2poly 3487 3488 bntest.c has additional tests for binary polynomial arithmetic. 3489 3490 Two implementations for BN_GF2m_mod_div() are available. 3491 The default algorithm simply uses BN_GF2m_mod_inv() and 3492 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3493 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3494 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3495 3496 [Sheueling Chang Shantz and Douglas Stebila 3497 (Sun Microsystems Laboratories)] 3498 3499 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3500 functionality is disabled at compile-time. 3501 [Douglas Stebila <douglas.stebila@sun.com>] 3502 3503 *) Change default behaviour of 'openssl asn1parse' so that more 3504 information is visible when viewing, e.g., a certificate: 3505 3506 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3507 mode the content of non-printable OCTET STRINGs is output in a 3508 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3509 avoid the appearance of a printable string. 3510 [Nils Larsch <nla@trustcenter.de>] 3511 3512 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3513 functions 3514 EC_GROUP_set_asn1_flag() 3515 EC_GROUP_get_asn1_flag() 3516 EC_GROUP_set_point_conversion_form() 3517 EC_GROUP_get_point_conversion_form() 3518 These control ASN1 encoding details: 3519 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3520 has been set to OPENSSL_EC_NAMED_CURVE. 3521 - Points are encoded in uncompressed form by default; options for 3522 asn1_for are as for point2oct, namely 3523 POINT_CONVERSION_COMPRESSED 3524 POINT_CONVERSION_UNCOMPRESSED 3525 POINT_CONVERSION_HYBRID 3526 3527 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3528 functions 3529 EC_GROUP_set_seed() 3530 EC_GROUP_get0_seed() 3531 EC_GROUP_get_seed_len() 3532 This is used only for ASN1 purposes (so far). 3533 [Nils Larsch <nla@trustcenter.de>] 3534 3535 *) Add 'field_type' member to EC_METHOD, which holds the NID 3536 of the appropriate field type OID. The new function 3537 EC_METHOD_get_field_type() returns this value. 3538 [Nils Larsch <nla@trustcenter.de>] 3539 3540 *) Add functions 3541 EC_POINT_point2bn() 3542 EC_POINT_bn2point() 3543 EC_POINT_point2hex() 3544 EC_POINT_hex2point() 3545 providing useful interfaces to EC_POINT_point2oct() and 3546 EC_POINT_oct2point(). 3547 [Nils Larsch <nla@trustcenter.de>] 3548 3549 *) Change internals of the EC library so that the functions 3550 EC_GROUP_set_generator() 3551 EC_GROUP_get_generator() 3552 EC_GROUP_get_order() 3553 EC_GROUP_get_cofactor() 3554 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3555 to methods, which would lead to unnecessary code duplication when 3556 adding different types of curves. 3557 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3558 3559 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3560 arithmetic, and such that modified wNAFs are generated 3561 (which avoid length expansion in many cases). 3562 [Bodo Moeller] 3563 3564 *) Add a function EC_GROUP_check_discriminant() (defined via 3565 EC_METHOD) that verifies that the curve discriminant is non-zero. 3566 3567 Add a function EC_GROUP_check() that makes some sanity tests 3568 on a EC_GROUP, its generator and order. This includes 3569 EC_GROUP_check_discriminant(). 3570 [Nils Larsch <nla@trustcenter.de>] 3571 3572 *) Add ECDSA in new directory crypto/ecdsa/. 3573 3574 Add applications 'openssl ecparam' and 'openssl ecdsa' 3575 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3576 3577 ECDSA support is also included in various other files across the 3578 library. Most notably, 3579 - 'openssl req' now has a '-newkey ecdsa:file' option; 3580 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3581 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3582 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3583 them suitable for ECDSA where domain parameters must be 3584 extracted before the specific public key; 3585 - ECDSA engine support has been added. 3586 [Nils Larsch <nla@trustcenter.de>] 3587 3588 *) Include some named elliptic curves, and add OIDs from X9.62, 3589 SECG, and WAP/WTLS. Each curve can be obtained from the new 3590 function 3591 EC_GROUP_new_by_curve_name(), 3592 and the list of available named curves can be obtained with 3593 EC_get_builtin_curves(). 3594 Also add a 'curve_name' member to EC_GROUP objects, which can be 3595 accessed via 3596 EC_GROUP_set_curve_name() 3597 EC_GROUP_get_curve_name() 3598 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3599 3600 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3601 was actually never needed) and in BN_mul(). The removal in BN_mul() 3602 required a small change in bn_mul_part_recursive() and the addition 3603 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3604 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3605 bn_sub_words() and bn_add_words() except they take arrays with 3606 differing sizes. 3607 [Richard Levitte] 3608 3609 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3610 3611 *) Cleanse PEM buffers before freeing them since they may contain 3612 sensitive data. 3613 [Benjamin Bennett <ben@psc.edu>] 3614 3615 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3616 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3617 authentication-only ciphersuites. 3618 [Bodo Moeller] 3619 3620 *) Since AES128 and AES256 share a single mask bit in the logic of 3621 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3622 kludge to work properly if AES128 is available and AES256 isn't. 3623 [Victor Duchovni] 3624 3625 *) Expand security boundary to match 1.1.1 module. 3626 [Steve Henson] 3627 3628 *) Remove redundant features: hash file source, editing of test vectors 3629 modify fipsld to use external fips_premain.c signature. 3630 [Steve Henson] 3631 3632 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3633 run algorithm test programs. 3634 [Steve Henson] 3635 3636 *) Make algorithm test programs more tolerant of whitespace. 3637 [Steve Henson] 3638 3639 *) Have SSL/TLS server implementation tolerate "mismatched" record 3640 protocol version while receiving ClientHello even if the 3641 ClientHello is fragmented. (The server can't insist on the 3642 particular protocol version it has chosen before the ServerHello 3643 message has informed the client about his choice.) 3644 [Bodo Moeller] 3645 3646 *) Load error codes if they are not already present instead of using a 3647 static variable. This allows them to be cleanly unloaded and reloaded. 3648 [Steve Henson] 3649 3650 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3651 3652 *) Introduce limits to prevent malicious keys being able to 3653 cause a denial of service. (CVE-2006-2940) 3654 [Steve Henson, Bodo Moeller] 3655 3656 *) Fix ASN.1 parsing of certain invalid structures that can result 3657 in a denial of service. (CVE-2006-2937) [Steve Henson] 3658 3659 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3660 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3661 3662 *) Fix SSL client code which could crash if connecting to a 3663 malicious SSLv2 server. (CVE-2006-4343) 3664 [Tavis Ormandy and Will Drewry, Google Security Team] 3665 3666 *) Change ciphersuite string processing so that an explicit 3667 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3668 will no longer include "AES128-SHA"), and any other similar 3669 ciphersuite (same bitmap) from *other* protocol versions (so that 3670 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3671 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3672 changes from 0.9.8b and 0.9.8d. 3673 [Bodo Moeller] 3674 3675 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3676 3677 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3678 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3679 3680 *) Change the Unix randomness entropy gathering to use poll() when 3681 possible instead of select(), since the latter has some 3682 undesirable limitations. 3683 [Darryl Miles via Richard Levitte and Bodo Moeller] 3684 3685 *) Disable rogue ciphersuites: 3686 3687 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3688 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3689 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3690 3691 The latter two were purportedly from 3692 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3693 appear there. 3694 3695 Also deactive the remaining ciphersuites from 3696 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3697 unofficial, and the ID has long expired. 3698 [Bodo Moeller] 3699 3700 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3701 dual-core machines) and other potential thread-safety issues. 3702 [Bodo Moeller] 3703 3704 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3705 3706 *) Adapt fipsld and the build system to link against the validated FIPS 3707 module in FIPS mode. 3708 [Steve Henson] 3709 3710 *) Fixes for VC++ 2005 build under Windows. 3711 [Steve Henson] 3712 3713 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3714 from a Windows bash shell such as MSYS. It is autodetected from the 3715 "config" script when run from a VC++ environment. Modify standard VC++ 3716 build to use fipscanister.o from the GNU make build. 3717 [Steve Henson] 3718 3719 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3720 3721 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3722 The value now differs depending on if you build for FIPS or not. 3723 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3724 safely run with a non-FIPSed libcrypto, as it may crash because of 3725 the difference induced by this change. 3726 [Andy Polyakov] 3727 3728 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3729 3730 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3731 (part of SSL_OP_ALL). This option used to disable the 3732 countermeasure against man-in-the-middle protocol-version 3733 rollback in the SSL 2.0 server implementation, which is a bad 3734 idea. (CVE-2005-2969) 3735 3736 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3737 for Information Security, National Institute of Advanced Industrial 3738 Science and Technology [AIST], Japan)] 3739 3740 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3741 mainly for FIPS compliance and not fully integrated at this stage. 3742 [Steve Henson] 3743 3744 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3745 the exponentiation using a fixed-length exponent. (Otherwise, 3746 the information leaked through timing could expose the secret key 3747 after many signatures; cf. Bleichenbacher's attack on DSA with 3748 biased k.) 3749 [Bodo Moeller] 3750 3751 *) Make a new fixed-window mod_exp implementation the default for 3752 RSA, DSA, and DH private-key operations so that the sequence of 3753 squares and multiplies and the memory access pattern are 3754 independent of the particular secret key. This will mitigate 3755 cache-timing and potential related attacks. 3756 3757 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3758 and this is automatically used by BN_mod_exp_mont() if the new flag 3759 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3760 will use this BN flag for private exponents unless the flag 3761 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3762 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3763 3764 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3765 3766 *) Change the client implementation for SSLv23_method() and 3767 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3768 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3769 (Previously, the SSL 2.0 backwards compatible Client Hello 3770 message format would be used even with SSL_OP_NO_SSLv2.) 3771 [Bodo Moeller] 3772 3773 *) Add support for smime-type MIME parameter in S/MIME messages which some 3774 clients need. 3775 [Steve Henson] 3776 3777 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3778 a threadsafe manner. Modify rsa code to use new function and add calls 3779 to dsa and dh code (which had race conditions before). 3780 [Steve Henson] 3781 3782 *) Include the fixed error library code in the C error file definitions 3783 instead of fixing them up at runtime. This keeps the error code 3784 structures constant. 3785 [Steve Henson] 3786 3787 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3788 3789 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3790 OpenSSL 0.9.8.] 3791 3792 *) Fixes for newer kerberos headers. NB: the casts are needed because 3793 the 'length' field is signed on one version and unsigned on another 3794 with no (?) obvious way to tell the difference, without these VC++ 3795 complains. Also the "definition" of FAR (blank) is no longer included 3796 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3797 some needed definitions. 3798 [Steve Henson] 3799 3800 *) Undo Cygwin change. 3801 [Ulf M�ller] 3802 3803 *) Added support for proxy certificates according to RFC 3820. 3804 Because they may be a security thread to unaware applications, 3805 they must be explicitely allowed in run-time. See 3806 docs/HOWTO/proxy_certificates.txt for further information. 3807 [Richard Levitte] 3808 3809 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3810 3811 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3812 server and client random values. Previously 3813 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3814 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3815 3816 This change has negligible security impact because: 3817 3818 1. Server and client random values still have 24 bytes of pseudo random 3819 data. 3820 3821 2. Server and client random values are sent in the clear in the initial 3822 handshake. 3823 3824 3. The master secret is derived using the premaster secret (48 bytes in 3825 size for static RSA ciphersuites) as well as client server and random 3826 values. 3827 3828 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3829 to our attention. 3830 3831 [Stephen Henson, reported by UK NISCC] 3832 3833 *) Use Windows randomness collection on Cygwin. 3834 [Ulf M�ller] 3835 3836 *) Fix hang in EGD/PRNGD query when communication socket is closed 3837 prematurely by EGD/PRNGD. 3838 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3839 3840 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3841 [Steve Henson] 3842 3843 *) Back-port of selected performance improvements from development 3844 branch, as well as improved support for PowerPC platforms. 3845 [Andy Polyakov] 3846 3847 *) Add lots of checks for memory allocation failure, error codes to indicate 3848 failure and freeing up memory if a failure occurs. 3849 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3850 3851 *) Add new -passin argument to dgst. 3852 [Steve Henson] 3853 3854 *) Perform some character comparisons of different types in X509_NAME_cmp: 3855 this is needed for some certificates that reencode DNs into UTF8Strings 3856 (in violation of RFC3280) and can't or wont issue name rollover 3857 certificates. 3858 [Steve Henson] 3859 3860 *) Make an explicit check during certificate validation to see that 3861 the CA setting in each certificate on the chain is correct. As a 3862 side effect always do the following basic checks on extensions, 3863 not just when there's an associated purpose to the check: 3864 3865 - if there is an unhandled critical extension (unless the user 3866 has chosen to ignore this fault) 3867 - if the path length has been exceeded (if one is set at all) 3868 - that certain extensions fit the associated purpose (if one has 3869 been given) 3870 [Richard Levitte] 3871 3872 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3873 3874 *) Avoid a race condition when CRLs are checked in a multi threaded 3875 environment. This would happen due to the reordering of the revoked 3876 entries during signature checking and serial number lookup. Now the 3877 encoding is cached and the serial number sort performed under a lock. 3878 Add new STACK function sk_is_sorted(). 3879 [Steve Henson] 3880 3881 *) Add Delta CRL to the extension code. 3882 [Steve Henson] 3883 3884 *) Various fixes to s3_pkt.c so alerts are sent properly. 3885 [David Holmes <d.holmes@f5.com>] 3886 3887 *) Reduce the chances of duplicate issuer name and serial numbers (in 3888 violation of RFC3280) using the OpenSSL certificate creation utilities. 3889 This is done by creating a random 64 bit value for the initial serial 3890 number when a serial number file is created or when a self signed 3891 certificate is created using 'openssl req -x509'. The initial serial 3892 number file is created using 'openssl x509 -next_serial' in CA.pl 3893 rather than being initialized to 1. 3894 [Steve Henson] 3895 3896 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3897 3898 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3899 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3900 [Joe Orton, Steve Henson] 3901 3902 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3903 (CVE-2004-0112) 3904 [Joe Orton, Steve Henson] 3905 3906 *) Make it possible to have multiple active certificates with the same 3907 subject in the CA index file. This is done only if the keyword 3908 'unique_subject' is set to 'no' in the main CA section (default 3909 if 'CA_default') of the configuration file. The value is saved 3910 with the database itself in a separate index attribute file, 3911 named like the index file with '.attr' appended to the name. 3912 [Richard Levitte] 3913 3914 *) X509 verify fixes. Disable broken certificate workarounds when 3915 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3916 keyUsage extension present. Don't accept CRLs with unhandled critical 3917 extensions: since verify currently doesn't process CRL extensions this 3918 rejects a CRL with *any* critical extensions. Add new verify error codes 3919 for these cases. 3920 [Steve Henson] 3921 3922 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3923 A clarification of RFC2560 will require the use of OCTET STRINGs and 3924 some implementations cannot handle the current raw format. Since OpenSSL 3925 copies and compares OCSP nonces as opaque blobs without any attempt at 3926 parsing them this should not create any compatibility issues. 3927 [Steve Henson] 3928 3929 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3930 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3931 this HMAC (and other) operations are several times slower than OpenSSL 3932 < 0.9.7. 3933 [Steve Henson] 3934 3935 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3936 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3937 3938 *) Use the correct content when signing type "other". 3939 [Steve Henson] 3940 3941 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3942 3943 *) Fix various bugs revealed by running the NISCC test suite: 3944 3945 Stop out of bounds reads in the ASN1 code when presented with 3946 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3947 3948 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3949 3950 If verify callback ignores invalid public key errors don't try to check 3951 certificate signature with the NULL public key. 3952 3953 [Steve Henson] 3954 3955 *) New -ignore_err option in ocsp application to stop the server 3956 exiting on the first error in a request. 3957 [Steve Henson] 3958 3959 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3960 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3961 specifications. 3962 [Steve Henson] 3963 3964 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3965 extra data after the compression methods not only for TLS 1.0 3966 but also for SSL 3.0 (as required by the specification). 3967 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3968 3969 *) Change X509_certificate_type() to mark the key as exported/exportable 3970 when it's 512 *bits* long, not 512 bytes. 3971 [Richard Levitte] 3972 3973 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3974 blocks during encryption. 3975 [Richard Levitte] 3976 3977 *) Various fixes to base64 BIO and non blocking I/O. On write 3978 flushes were not handled properly if the BIO retried. On read 3979 data was not being buffered properly and had various logic bugs. 3980 This also affects blocking I/O when the data being decoded is a 3981 certain size. 3982 [Steve Henson] 3983 3984 *) Various S/MIME bugfixes and compatibility changes: 3985 output correct application/pkcs7 MIME type if 3986 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3987 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3988 of files as .eml work). Correctly handle very long lines in MIME 3989 parser. 3990 [Steve Henson] 3991 3992 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3993 3994 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3995 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3996 a protocol version number mismatch like a decryption error 3997 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3998 [Bodo Moeller] 3999 4000 *) Turn on RSA blinding by default in the default implementation 4001 to avoid a timing attack. Applications that don't want it can call 4002 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 4003 They would be ill-advised to do so in most cases. 4004 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 4005 4006 *) Change RSA blinding code so that it works when the PRNG is not 4007 seeded (in this case, the secret RSA exponent is abused as 4008 an unpredictable seed -- if it is not unpredictable, there 4009 is no point in blinding anyway). Make RSA blinding thread-safe 4010 by remembering the creator's thread ID in rsa->blinding and 4011 having all other threads use local one-time blinding factors 4012 (this requires more computation than sharing rsa->blinding, but 4013 avoids excessive locking; and if an RSA object is not shared 4014 between threads, blinding will still be very fast). 4015 [Bodo Moeller] 4016 4017 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 4018 ENGINE as defaults for all supported algorithms irrespective of 4019 the 'flags' parameter. 'flags' is now honoured, so applications 4020 should make sure they are passing it correctly. 4021 [Geoff Thorpe] 4022 4023 *) Target "mingw" now allows native Windows code to be generated in 4024 the Cygwin environment as well as with the MinGW compiler. 4025 [Ulf Moeller] 4026 4027 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 4028 4029 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 4030 via timing by performing a MAC computation even if incorrrect 4031 block cipher padding has been found. This is a countermeasure 4032 against active attacks where the attacker has to distinguish 4033 between bad padding and a MAC verification error. (CVE-2003-0078) 4034 4035 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 4036 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 4037 Martin Vuagnoux (EPFL, Ilion)] 4038 4039 *) Make the no-err option work as intended. The intention with no-err 4040 is not to have the whole error stack handling routines removed from 4041 libcrypto, it's only intended to remove all the function name and 4042 reason texts, thereby removing some of the footprint that may not 4043 be interesting if those errors aren't displayed anyway. 4044 4045 NOTE: it's still possible for any application or module to have it's 4046 own set of error texts inserted. The routines are there, just not 4047 used by default when no-err is given. 4048 [Richard Levitte] 4049 4050 *) Add support for FreeBSD on IA64. 4051 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 4052 4053 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 4054 Kerberos function mit_des_cbc_cksum(). Before this change, 4055 the value returned by DES_cbc_cksum() was like the one from 4056 mit_des_cbc_cksum(), except the bytes were swapped. 4057 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 4058 4059 *) Allow an application to disable the automatic SSL chain building. 4060 Before this a rather primitive chain build was always performed in 4061 ssl3_output_cert_chain(): an application had no way to send the 4062 correct chain if the automatic operation produced an incorrect result. 4063 4064 Now the chain builder is disabled if either: 4065 4066 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 4067 4068 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 4069 4070 The reasoning behind this is that an application would not want the 4071 auto chain building to take place if extra chain certificates are 4072 present and it might also want a means of sending no additional 4073 certificates (for example the chain has two certificates and the 4074 root is omitted). 4075 [Steve Henson] 4076 4077 *) Add the possibility to build without the ENGINE framework. 4078 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4079 4080 *) Under Win32 gmtime() can return NULL: check return value in 4081 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 4082 [Steve Henson] 4083 4084 *) DSA routines: under certain error conditions uninitialized BN objects 4085 could be freed. Solution: make sure initialization is performed early 4086 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 4087 Nils Larsch <nla@trustcenter.de> via PR#459) 4088 [Lutz Jaenicke] 4089 4090 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 4091 checked on reconnect on the client side, therefore session resumption 4092 could still fail with a "ssl session id is different" error. This 4093 behaviour is masked when SSL_OP_ALL is used due to 4094 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 4095 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4096 followup to PR #377. 4097 [Lutz Jaenicke] 4098 4099 *) IA-32 assembler support enhancements: unified ELF targets, support 4100 for SCO/Caldera platforms, fix for Cygwin shared build. 4101 [Andy Polyakov] 4102 4103 *) Add support for FreeBSD on sparc64. As a consequence, support for 4104 FreeBSD on non-x86 processors is separate from x86 processors on 4105 the config script, much like the NetBSD support. 4106 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 4107 4108 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 4109 4110 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 4111 OpenSSL 0.9.7.] 4112 4113 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 4114 code (06) was taken as the first octet of the session ID and the last 4115 octet was ignored consequently. As a result SSLv2 client side session 4116 caching could not have worked due to the session ID mismatch between 4117 client and server. 4118 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4119 PR #377. 4120 [Lutz Jaenicke] 4121 4122 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 4123 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 4124 removed entirely. 4125 [Richard Levitte] 4126 4127 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 4128 seems that in spite of existing for more than a year, many application 4129 author have done nothing to provide the necessary callbacks, which 4130 means that this particular engine will not work properly anywhere. 4131 This is a very unfortunate situation which forces us, in the name 4132 of usability, to give the hw_ncipher.c a static lock, which is part 4133 of libcrypto. 4134 NOTE: This is for the 0.9.7 series ONLY. This hack will never 4135 appear in 0.9.8 or later. We EXPECT application authors to have 4136 dealt properly with this when 0.9.8 is released (unless we actually 4137 make such changes in the libcrypto locking code that changes will 4138 have to be made anyway). 4139 [Richard Levitte] 4140 4141 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 4142 octets have been read, EOF or an error occurs. Without this change 4143 some truncated ASN1 structures will not produce an error. 4144 [Steve Henson] 4145 4146 *) Disable Heimdal support, since it hasn't been fully implemented. 4147 Still give the possibility to force the use of Heimdal, but with 4148 warnings and a request that patches get sent to openssl-dev. 4149 [Richard Levitte] 4150 4151 *) Add the VC-CE target, introduce the WINCE sysname, and add 4152 INSTALL.WCE and appropriate conditionals to make it build. 4153 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4154 4155 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 4156 cygssl-x.y.z.dll, where x, y and z are the major, minor and 4157 edit numbers of the version. 4158 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 4159 4160 *) Introduce safe string copy and catenation functions 4161 (BUF_strlcpy() and BUF_strlcat()). 4162 [Ben Laurie (CHATS) and Richard Levitte] 4163 4164 *) Avoid using fixed-size buffers for one-line DNs. 4165 [Ben Laurie (CHATS)] 4166 4167 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4168 resizing buffers containing secrets, and use where appropriate. 4169 [Ben Laurie (CHATS)] 4170 4171 *) Avoid using fixed size buffers for configuration file location. 4172 [Ben Laurie (CHATS)] 4173 4174 *) Avoid filename truncation for various CA files. 4175 [Ben Laurie (CHATS)] 4176 4177 *) Use sizeof in preference to magic numbers. 4178 [Ben Laurie (CHATS)] 4179 4180 *) Avoid filename truncation in cert requests. 4181 [Ben Laurie (CHATS)] 4182 4183 *) Add assertions to check for (supposedly impossible) buffer 4184 overflows. 4185 [Ben Laurie (CHATS)] 4186 4187 *) Don't cache truncated DNS entries in the local cache (this could 4188 potentially lead to a spoofing attack). 4189 [Ben Laurie (CHATS)] 4190 4191 *) Fix various buffers to be large enough for hex/decimal 4192 representations in a platform independent manner. 4193 [Ben Laurie (CHATS)] 4194 4195 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4196 resizing buffers containing secrets, and use where appropriate. 4197 [Ben Laurie (CHATS)] 4198 4199 *) Add BIO_indent() to avoid much slightly worrying code to do 4200 indents. 4201 [Ben Laurie (CHATS)] 4202 4203 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4204 [Ben Laurie (CHATS)] 4205 4206 *) buffer_gets() could terminate with the buffer only half 4207 full. Fixed. 4208 [Ben Laurie (CHATS)] 4209 4210 *) Add assertions to prevent user-supplied crypto functions from 4211 overflowing internal buffers by having large block sizes, etc. 4212 [Ben Laurie (CHATS)] 4213 4214 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4215 unconditionally). 4216 [Ben Laurie (CHATS)] 4217 4218 *) Eliminate unused copy of key in RC4. 4219 [Ben Laurie (CHATS)] 4220 4221 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4222 [Ben Laurie (CHATS)] 4223 4224 *) Fix off-by-one error in EGD path. 4225 [Ben Laurie (CHATS)] 4226 4227 *) If RANDFILE path is too long, ignore instead of truncating. 4228 [Ben Laurie (CHATS)] 4229 4230 *) Eliminate unused and incorrectly sized X.509 structure 4231 CBCParameter. 4232 [Ben Laurie (CHATS)] 4233 4234 *) Eliminate unused and dangerous function knumber(). 4235 [Ben Laurie (CHATS)] 4236 4237 *) Eliminate unused and dangerous structure, KSSL_ERR. 4238 [Ben Laurie (CHATS)] 4239 4240 *) Protect against overlong session ID context length in an encoded 4241 session object. Since these are local, this does not appear to be 4242 exploitable. 4243 [Ben Laurie (CHATS)] 4244 4245 *) Change from security patch (see 0.9.6e below) that did not affect 4246 the 0.9.6 release series: 4247 4248 Remote buffer overflow in SSL3 protocol - an attacker could 4249 supply an oversized master key in Kerberos-enabled versions. 4250 (CVE-2002-0657) 4251 [Ben Laurie (CHATS)] 4252 4253 *) Change the SSL kerb5 codes to match RFC 2712. 4254 [Richard Levitte] 4255 4256 *) Make -nameopt work fully for req and add -reqopt switch. 4257 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4258 4259 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4260 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4261 4262 *) Make sure tests can be performed even if the corresponding algorithms 4263 have been removed entirely. This was also the last step to make 4264 OpenSSL compilable with DJGPP under all reasonable conditions. 4265 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4266 4267 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4268 to allow version independent disabling of normally unselected ciphers, 4269 which may be activated as a side-effect of selecting a single cipher. 4270 4271 (E.g., cipher list string "RSA" enables ciphersuites that are left 4272 out of "ALL" because they do not provide symmetric encryption. 4273 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4274 [Lutz Jaenicke, Bodo Moeller] 4275 4276 *) Add appropriate support for separate platform-dependent build 4277 directories. The recommended way to make a platform-dependent 4278 build directory is the following (tested on Linux), maybe with 4279 some local tweaks: 4280 4281 # Place yourself outside of the OpenSSL source tree. In 4282 # this example, the environment variable OPENSSL_SOURCE 4283 # is assumed to contain the absolute OpenSSL source directory. 4284 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4285 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4286 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4287 mkdir -p `dirname $F` 4288 ln -s $OPENSSL_SOURCE/$F $F 4289 done 4290 4291 To be absolutely sure not to disturb the source tree, a "make clean" 4292 is a good thing. If it isn't successfull, don't worry about it, 4293 it probably means the source directory is very clean. 4294 [Richard Levitte] 4295 4296 *) Make sure any ENGINE control commands make local copies of string 4297 pointers passed to them whenever necessary. Otherwise it is possible 4298 the caller may have overwritten (or deallocated) the original string 4299 data when a later ENGINE operation tries to use the stored values. 4300 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4301 4302 *) Improve diagnostics in file reading and command-line digests. 4303 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4304 4305 *) Add AES modes CFB and OFB to the object database. Correct an 4306 error in AES-CFB decryption. 4307 [Richard Levitte] 4308 4309 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4310 allows existing EVP_CIPHER_CTX structures to be reused after 4311 calling EVP_*Final(). This behaviour is used by encryption 4312 BIOs and some applications. This has the side effect that 4313 applications must explicitly clean up cipher contexts with 4314 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4315 [Steve Henson] 4316 4317 *) Check the values of dna and dnb in bn_mul_recursive before calling 4318 bn_mul_comba (a non zero value means the a or b arrays do not contain 4319 n2 elements) and fallback to bn_mul_normal if either is not zero. 4320 [Steve Henson] 4321 4322 *) Fix escaping of non-ASCII characters when using the -subj option 4323 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4324 [Lutz Jaenicke] 4325 4326 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4327 form for "surname", serialNumber has no short form. 4328 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4329 therefore remove "mail" short name for "internet 7". 4330 The OID for unique identifiers in X509 certificates is 4331 x500UniqueIdentifier, not uniqueIdentifier. 4332 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4333 [Lutz Jaenicke] 4334 4335 *) Add an "init" command to the ENGINE config module and auto initialize 4336 ENGINEs. Without any "init" command the ENGINE will be initialized 4337 after all ctrl commands have been executed on it. If init=1 the 4338 ENGINE is initailized at that point (ctrls before that point are run 4339 on the uninitialized ENGINE and after on the initialized one). If 4340 init=0 then the ENGINE will not be iniatialized at all. 4341 [Steve Henson] 4342 4343 *) Fix the 'app_verify_callback' interface so that the user-defined 4344 argument is actually passed to the callback: In the 4345 SSL_CTX_set_cert_verify_callback() prototype, the callback 4346 declaration has been changed from 4347 int (*cb)() 4348 into 4349 int (*cb)(X509_STORE_CTX *,void *); 4350 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4351 i=s->ctx->app_verify_callback(&ctx) 4352 has been changed into 4353 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4354 4355 To update applications using SSL_CTX_set_cert_verify_callback(), 4356 a dummy argument can be added to their callback functions. 4357 [D. K. Smetters <smetters@parc.xerox.com>] 4358 4359 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4360 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4361 4362 *) Add and OPENSSL_LOAD_CONF define which will cause 4363 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4364 This allows older applications to transparently support certain 4365 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4366 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4367 load the config file and OPENSSL_add_all_algorithms_conf() which will 4368 always load it have also been added. 4369 [Steve Henson] 4370 4371 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4372 Adjust NIDs and EVP layer. 4373 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4374 4375 *) Config modules support in openssl utility. 4376 4377 Most commands now load modules from the config file, 4378 though in a few (such as version) this isn't done 4379 because it couldn't be used for anything. 4380 4381 In the case of ca and req the config file used is 4382 the same as the utility itself: that is the -config 4383 command line option can be used to specify an 4384 alternative file. 4385 [Steve Henson] 4386 4387 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4388 use "openssl_conf" if filename is NULL use default openssl config file. 4389 [Steve Henson] 4390 4391 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4392 config section name. Add a new flag to tolerate a missing config file 4393 and move code to CONF_modules_load_file(). 4394 [Steve Henson] 4395 4396 *) Support for crypto accelerator cards from Accelerated Encryption 4397 Processing, www.aep.ie. (Use engine 'aep') 4398 The support was copied from 0.9.6c [engine] and adapted/corrected 4399 to work with the new engine framework. 4400 [AEP Inc. and Richard Levitte] 4401 4402 *) Support for SureWare crypto accelerator cards from Baltimore 4403 Technologies. (Use engine 'sureware') 4404 The support was copied from 0.9.6c [engine] and adapted 4405 to work with the new engine framework. 4406 [Richard Levitte] 4407 4408 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4409 make the newer ENGINE framework commands for the CHIL engine work. 4410 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4411 4412 *) Make it possible to produce shared libraries on ReliantUNIX. 4413 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4414 4415 *) Add the configuration target debug-linux-ppro. 4416 Make 'openssl rsa' use the general key loading routines 4417 implemented in apps.c, and make those routines able to 4418 handle the key format FORMAT_NETSCAPE and the variant 4419 FORMAT_IISSGC. 4420 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4421 4422 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4423 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4424 4425 *) Add -keyform to rsautl, and document -engine. 4426 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4427 4428 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4429 BIO_R_NO_SUCH_FILE error code rather than the generic 4430 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4431 [Ben Laurie] 4432 4433 *) Add new functions 4434 ERR_peek_last_error 4435 ERR_peek_last_error_line 4436 ERR_peek_last_error_line_data. 4437 These are similar to 4438 ERR_peek_error 4439 ERR_peek_error_line 4440 ERR_peek_error_line_data, 4441 but report on the latest error recorded rather than the first one 4442 still in the error queue. 4443 [Ben Laurie, Bodo Moeller] 4444 4445 *) default_algorithms option in ENGINE config module. This allows things 4446 like: 4447 default_algorithms = ALL 4448 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4449 [Steve Henson] 4450 4451 *) Prelminary ENGINE config module. 4452 [Steve Henson] 4453 4454 *) New experimental application configuration code. 4455 [Steve Henson] 4456 4457 *) Change the AES code to follow the same name structure as all other 4458 symmetric ciphers, and behave the same way. Move everything to 4459 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4460 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4461 4462 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4463 [Ben Laurie and Theo de Raadt] 4464 4465 *) Add option to output public keys in req command. 4466 [Massimiliano Pala madwolf@openca.org] 4467 4468 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4469 (up to about 10% better than before for P-192 and P-224). 4470 [Bodo Moeller] 4471 4472 *) New functions/macros 4473 4474 SSL_CTX_set_msg_callback(ctx, cb) 4475 SSL_CTX_set_msg_callback_arg(ctx, arg) 4476 SSL_set_msg_callback(ssl, cb) 4477 SSL_set_msg_callback_arg(ssl, arg) 4478 4479 to request calling a callback function 4480 4481 void cb(int write_p, int version, int content_type, 4482 const void *buf, size_t len, SSL *ssl, void *arg) 4483 4484 whenever a protocol message has been completely received 4485 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4486 protocol version according to which the SSL library interprets 4487 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4488 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4489 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4490 specification (change_cipher_spec(20), alert(21), handshake(22)). 4491 'buf' and 'len' point to the actual message, 'ssl' to the 4492 SSL object, and 'arg' is the application-defined value set by 4493 SSL[_CTX]_set_msg_callback_arg(). 4494 4495 'openssl s_client' and 'openssl s_server' have new '-msg' options 4496 to enable a callback that displays all protocol messages. 4497 [Bodo Moeller] 4498 4499 *) Change the shared library support so shared libraries are built as 4500 soon as the corresponding static library is finished, and thereby get 4501 openssl and the test programs linked against the shared library. 4502 This still only happens when the keyword "shard" has been given to 4503 the configuration scripts. 4504 4505 NOTE: shared library support is still an experimental thing, and 4506 backward binary compatibility is still not guaranteed. 4507 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4508 4509 *) Add support for Subject Information Access extension. 4510 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4511 4512 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4513 additional bytes when new memory had to be allocated, not just 4514 when reusing an existing buffer. 4515 [Bodo Moeller] 4516 4517 *) New command line and configuration option 'utf8' for the req command. 4518 This allows field values to be specified as UTF8 strings. 4519 [Steve Henson] 4520 4521 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4522 runs for the former and machine-readable output for the latter. 4523 [Ben Laurie] 4524 4525 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4526 of the e-mail address in the DN (i.e., it will go into a certificate 4527 extension only). The new configuration file option 'email_in_dn = no' 4528 has the same effect. 4529 [Massimiliano Pala madwolf@openca.org] 4530 4531 *) Change all functions with names starting with des_ to be starting 4532 with DES_ instead. Add wrappers that are compatible with libdes, 4533 but are named _ossl_old_des_*. Finally, add macros that map the 4534 des_* symbols to the corresponding _ossl_old_des_* if libdes 4535 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4536 desired, the des_* symbols will be mapped to DES_*, with one 4537 exception. 4538 4539 Since we provide two compatibility mappings, the user needs to 4540 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4541 compatibility is desired. The default (i.e., when that macro 4542 isn't defined) is OpenSSL 0.9.6c compatibility. 4543 4544 There are also macros that enable and disable the support of old 4545 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4546 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4547 are defined, the default will apply: to support the old des routines. 4548 4549 In either case, one must include openssl/des.h to get the correct 4550 definitions. Do not try to just include openssl/des_old.h, that 4551 won't work. 4552 4553 NOTE: This is a major break of an old API into a new one. Software 4554 authors are encouraged to switch to the DES_ style functions. Some 4555 time in the future, des_old.h and the libdes compatibility functions 4556 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4557 default), and then completely removed. 4558 [Richard Levitte] 4559 4560 *) Test for certificates which contain unsupported critical extensions. 4561 If such a certificate is found during a verify operation it is 4562 rejected by default: this behaviour can be overridden by either 4563 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4564 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4565 X509_supported_extension() has also been added which returns 1 if a 4566 particular extension is supported. 4567 [Steve Henson] 4568 4569 *) Modify the behaviour of EVP cipher functions in similar way to digests 4570 to retain compatibility with existing code. 4571 [Steve Henson] 4572 4573 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4574 compatibility with existing code. In particular the 'ctx' parameter does 4575 not have to be to be initialized before the call to EVP_DigestInit() and 4576 it is tidied up after a call to EVP_DigestFinal(). New function 4577 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4578 EVP_MD_CTX_copy() changed to not require the destination to be 4579 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4580 requires the destination to be valid. 4581 4582 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4583 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4584 [Steve Henson] 4585 4586 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4587 so that complete 'Handshake' protocol structures are kept in memory 4588 instead of overwriting 'msg_type' and 'length' with 'body' data. 4589 [Bodo Moeller] 4590 4591 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4592 [Massimo Santin via Richard Levitte] 4593 4594 *) Major restructuring to the underlying ENGINE code. This includes 4595 reduction of linker bloat, separation of pure "ENGINE" manipulation 4596 (initialisation, etc) from functionality dealing with implementations 4597 of specific crypto iterfaces. This change also introduces integrated 4598 support for symmetric ciphers and digest implementations - so ENGINEs 4599 can now accelerate these by providing EVP_CIPHER and EVP_MD 4600 implementations of their own. This is detailed in crypto/engine/README 4601 as it couldn't be adequately described here. However, there are a few 4602 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4603 were changed in the original introduction of ENGINE code have now 4604 reverted back - the hooking from this code to ENGINE is now a good 4605 deal more passive and at run-time, operations deal directly with 4606 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4607 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4608 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4609 they were not being used by the framework as there is no concept of a 4610 BIGNUM_METHOD and they could not be generalised to the new 4611 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4612 ENGINE_cpy() has been removed as it cannot be consistently defined in 4613 the new code. 4614 [Geoff Thorpe] 4615 4616 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4617 [Steve Henson] 4618 4619 *) Change mkdef.pl to sort symbols that get the same entry number, 4620 and make sure the automatically generated functions ERR_load_* 4621 become part of libeay.num as well. 4622 [Richard Levitte] 4623 4624 *) New function SSL_renegotiate_pending(). This returns true once 4625 renegotiation has been requested (either SSL_renegotiate() call 4626 or HelloRequest/ClientHello receveived from the peer) and becomes 4627 false once a handshake has been completed. 4628 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4629 sends a HelloRequest, but does not ensure that a handshake takes 4630 place. SSL_renegotiate_pending() is useful for checking if the 4631 client has followed the request.) 4632 [Bodo Moeller] 4633 4634 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4635 By default, clients may request session resumption even during 4636 renegotiation (if session ID contexts permit); with this option, 4637 session resumption is possible only in the first handshake. 4638 4639 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4640 more bits available for options that should not be part of 4641 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4642 [Bodo Moeller] 4643 4644 *) Add some demos for certificate and certificate request creation. 4645 [Steve Henson] 4646 4647 *) Make maximum certificate chain size accepted from the peer application 4648 settable (SSL*_get/set_max_cert_list()), as proposed by 4649 "Douglas E. Engert" <deengert@anl.gov>. 4650 [Lutz Jaenicke] 4651 4652 *) Add support for shared libraries for Unixware-7 4653 (Boyd Lynn Gerber <gerberb@zenez.com>). 4654 [Lutz Jaenicke] 4655 4656 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4657 be done prior to destruction. Use this to unload error strings from 4658 ENGINEs that load their own error strings. NB: This adds two new API 4659 functions to "get" and "set" this destroy handler in an ENGINE. 4660 [Geoff Thorpe] 4661 4662 *) Alter all existing ENGINE implementations (except "openssl" and 4663 "openbsd") to dynamically instantiate their own error strings. This 4664 makes them more flexible to be built both as statically-linked ENGINEs 4665 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4666 Also, add stub code to each that makes building them as self-contained 4667 shared-libraries easier (see README.ENGINE). 4668 [Geoff Thorpe] 4669 4670 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4671 implementations into applications that are completely implemented in 4672 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4673 commands that can be used to configure what shared-library to load and 4674 to control aspects of the way it is handled. Also, made an update to 4675 the README.ENGINE file that brings its information up-to-date and 4676 provides some information and instructions on the "dynamic" ENGINE 4677 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4678 [Geoff Thorpe] 4679 4680 *) Make it possible to unload ranges of ERR strings with a new 4681 "ERR_unload_strings" function. 4682 [Geoff Thorpe] 4683 4684 *) Add a copy() function to EVP_MD. 4685 [Ben Laurie] 4686 4687 *) Make EVP_MD routines take a context pointer instead of just the 4688 md_data void pointer. 4689 [Ben Laurie] 4690 4691 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4692 that the digest can only process a single chunk of data 4693 (typically because it is provided by a piece of 4694 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4695 is only going to provide a single chunk of data, and hence the 4696 framework needn't accumulate the data for oneshot drivers. 4697 [Ben Laurie] 4698 4699 *) As with "ERR", make it possible to replace the underlying "ex_data" 4700 functions. This change also alters the storage and management of global 4701 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4702 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4703 index counters. The API functions that use this state have been changed 4704 to take a "class_index" rather than pointers to the class's local STACK 4705 and counter, and there is now an API function to dynamically create new 4706 classes. This centralisation allows us to (a) plug a lot of the 4707 thread-safety problems that existed, and (b) makes it possible to clean 4708 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4709 such data would previously have always leaked in application code and 4710 workarounds were in place to make the memory debugging turn a blind eye 4711 to it. Application code that doesn't use this new function will still 4712 leak as before, but their memory debugging output will announce it now 4713 rather than letting it slide. 4714 4715 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4716 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4717 has a return value to indicate success or failure. 4718 [Geoff Thorpe] 4719 4720 *) Make it possible to replace the underlying "ERR" functions such that the 4721 global state (2 LHASH tables and 2 locks) is only used by the "default" 4722 implementation. This change also adds two functions to "get" and "set" 4723 the implementation prior to it being automatically set the first time 4724 any other ERR function takes place. Ie. an application can call "get", 4725 pass the return value to a module it has just loaded, and that module 4726 can call its own "set" function using that value. This means the 4727 module's "ERR" operations will use (and modify) the error state in the 4728 application and not in its own statically linked copy of OpenSSL code. 4729 [Geoff Thorpe] 4730 4731 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4732 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4733 the operation, and provides a more encapsulated way for external code 4734 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4735 to use these functions rather than manually incrementing the counts. 4736 4737 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4738 [Geoff Thorpe] 4739 4740 *) Add EVP test program. 4741 [Ben Laurie] 4742 4743 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4744 [Ben Laurie] 4745 4746 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4747 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4748 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4749 These allow a CRL to be built without having to access X509_CRL fields 4750 directly. Modify 'ca' application to use new functions. 4751 [Steve Henson] 4752 4753 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4754 bug workarounds. Rollback attack detection is a security feature. 4755 The problem will only arise on OpenSSL servers when TLSv1 is not 4756 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4757 Software authors not wanting to support TLSv1 will have special reasons 4758 for their choice and can explicitly enable this option. 4759 [Bodo Moeller, Lutz Jaenicke] 4760 4761 *) Rationalise EVP so it can be extended: don't include a union of 4762 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4763 (similar to those existing for EVP_CIPHER_CTX). 4764 Usage example: 4765 4766 EVP_MD_CTX md; 4767 4768 EVP_MD_CTX_init(&md); /* new function call */ 4769 EVP_DigestInit(&md, EVP_sha1()); 4770 EVP_DigestUpdate(&md, in, len); 4771 EVP_DigestFinal(&md, out, NULL); 4772 EVP_MD_CTX_cleanup(&md); /* new function call */ 4773 4774 [Ben Laurie] 4775 4776 *) Make DES key schedule conform to the usual scheme, as well as 4777 correcting its structure. This means that calls to DES functions 4778 now have to pass a pointer to a des_key_schedule instead of a 4779 plain des_key_schedule (which was actually always a pointer 4780 anyway): E.g., 4781 4782 des_key_schedule ks; 4783 4784 des_set_key_checked(..., &ks); 4785 des_ncbc_encrypt(..., &ks, ...); 4786 4787 (Note that a later change renames 'des_...' into 'DES_...'.) 4788 [Ben Laurie] 4789 4790 *) Initial reduction of linker bloat: the use of some functions, such as 4791 PEM causes large amounts of unused functions to be linked in due to 4792 poor organisation. For example pem_all.c contains every PEM function 4793 which has a knock on effect of linking in large amounts of (unused) 4794 ASN1 code. Grouping together similar functions and splitting unrelated 4795 functions prevents this. 4796 [Steve Henson] 4797 4798 *) Cleanup of EVP macros. 4799 [Ben Laurie] 4800 4801 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4802 correct _ecb suffix. 4803 [Ben Laurie] 4804 4805 *) Add initial OCSP responder support to ocsp application. The 4806 revocation information is handled using the text based index 4807 use by the ca application. The responder can either handle 4808 requests generated internally, supplied in files (for example 4809 via a CGI script) or using an internal minimal server. 4810 [Steve Henson] 4811 4812 *) Add configuration choices to get zlib compression for TLS. 4813 [Richard Levitte] 4814 4815 *) Changes to Kerberos SSL for RFC 2712 compliance: 4816 1. Implemented real KerberosWrapper, instead of just using 4817 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4818 2. Implemented optional authenticator field of KerberosWrapper. 4819 4820 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4821 and authenticator structs; see crypto/krb5/. 4822 4823 Generalized Kerberos calls to support multiple Kerberos libraries. 4824 [Vern Staats <staatsvr@asc.hpc.mil>, 4825 Jeffrey Altman <jaltman@columbia.edu> 4826 via Richard Levitte] 4827 4828 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4829 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4830 values for each of the key sizes rather than having just 4831 parameters (and 'speed' generating keys each time). 4832 [Geoff Thorpe] 4833 4834 *) Speed up EVP routines. 4835 Before: 4836encrypt 4837type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4838des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4839des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4840des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4841decrypt 4842des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4843des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4844des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4845 After: 4846encrypt 4847des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4848decrypt 4849des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4850 [Ben Laurie] 4851 4852 *) Added the OS2-EMX target. 4853 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4854 4855 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4856 to support NCONF routines in extension code. New function CONF_set_nconf() 4857 to allow functions which take an NCONF to also handle the old LHASH 4858 structure: this means that the old CONF compatible routines can be 4859 retained (in particular wrt extensions) without having to duplicate the 4860 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4861 [Steve Henson] 4862 4863 *) Enhance the general user interface with mechanisms for inner control 4864 and with possibilities to have yes/no kind of prompts. 4865 [Richard Levitte] 4866 4867 *) Change all calls to low level digest routines in the library and 4868 applications to use EVP. Add missing calls to HMAC_cleanup() and 4869 don't assume HMAC_CTX can be copied using memcpy(). 4870 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4871 4872 *) Add the possibility to control engines through control names but with 4873 arbitrary arguments instead of just a string. 4874 Change the key loaders to take a UI_METHOD instead of a callback 4875 function pointer. NOTE: this breaks binary compatibility with earlier 4876 versions of OpenSSL [engine]. 4877 Adapt the nCipher code for these new conditions and add a card insertion 4878 callback. 4879 [Richard Levitte] 4880 4881 *) Enhance the general user interface with mechanisms to better support 4882 dialog box interfaces, application-defined prompts, the possibility 4883 to use defaults (for example default passwords from somewhere else) 4884 and interrupts/cancellations. 4885 [Richard Levitte] 4886 4887 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4888 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4889 [Steve Henson] 4890 4891 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4892 tidy up some unnecessarily weird code in 'sk_new()'). 4893 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4894 4895 *) Change the key loading routines for ENGINEs to use the same kind 4896 callback (pem_password_cb) as all other routines that need this 4897 kind of callback. 4898 [Richard Levitte] 4899 4900 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4901 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4902 than this minimum value is recommended. 4903 [Lutz Jaenicke] 4904 4905 *) New random seeder for OpenVMS, using the system process statistics 4906 that are easily reachable. 4907 [Richard Levitte] 4908 4909 *) Windows apparently can't transparently handle global 4910 variables defined in DLLs. Initialisations such as: 4911 4912 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4913 4914 wont compile. This is used by the any applications that need to 4915 declare their own ASN1 modules. This was fixed by adding the option 4916 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4917 needed for static libraries under Win32. 4918 [Steve Henson] 4919 4920 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4921 setting of purpose and trust fields. New X509_STORE trust and 4922 purpose functions and tidy up setting in other SSL functions. 4923 [Steve Henson] 4924 4925 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4926 structure. These are inherited by X509_STORE_CTX when it is 4927 initialised. This allows various defaults to be set in the 4928 X509_STORE structure (such as flags for CRL checking and custom 4929 purpose or trust settings) for functions which only use X509_STORE_CTX 4930 internally such as S/MIME. 4931 4932 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4933 trust settings if they are not set in X509_STORE. This allows X509_STORE 4934 purposes and trust (in S/MIME for example) to override any set by default. 4935 4936 Add command line options for CRL checking to smime, s_client and s_server 4937 applications. 4938 [Steve Henson] 4939 4940 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4941 are set then the CRL is looked up in the X509_STORE structure and 4942 its validity and signature checked, then if the certificate is found 4943 in the CRL the verify fails with a revoked error. 4944 4945 Various new CRL related callbacks added to X509_STORE_CTX structure. 4946 4947 Command line options added to 'verify' application to support this. 4948 4949 This needs some additional work, such as being able to handle multiple 4950 CRLs with different times, extension based lookup (rather than just 4951 by subject name) and ultimately more complete V2 CRL extension 4952 handling. 4953 [Steve Henson] 4954 4955 *) Add a general user interface API (crypto/ui/). This is designed 4956 to replace things like des_read_password and friends (backward 4957 compatibility functions using this new API are provided). 4958 The purpose is to remove prompting functions from the DES code 4959 section as well as provide for prompting through dialog boxes in 4960 a window system and the like. 4961 [Richard Levitte] 4962 4963 *) Add "ex_data" support to ENGINE so implementations can add state at a 4964 per-structure level rather than having to store it globally. 4965 [Geoff] 4966 4967 *) Make it possible for ENGINE structures to be copied when retrieved by 4968 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4969 This causes the "original" ENGINE structure to act like a template, 4970 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4971 operational state can be localised to each ENGINE structure, despite the 4972 fact they all share the same "methods". New ENGINE structures returned in 4973 this case have no functional references and the return value is the single 4974 structural reference. This matches the single structural reference returned 4975 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4976 ENGINE structure. 4977 [Geoff] 4978 4979 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4980 needs to match any other type at all we need to manually clear the 4981 tag cache. 4982 [Steve Henson] 4983 4984 *) Changes to the "openssl engine" utility to include; 4985 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4986 about an ENGINE's available control commands. 4987 - executing control commands from command line arguments using the 4988 '-pre' and '-post' switches. '-post' is only used if '-t' is 4989 specified and the ENGINE is successfully initialised. The syntax for 4990 the individual commands are colon-separated, for example; 4991 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4992 [Geoff] 4993 4994 *) New dynamic control command support for ENGINEs. ENGINEs can now 4995 declare their own commands (numbers), names (strings), descriptions, 4996 and input types for run-time discovery by calling applications. A 4997 subset of these commands are implicitly classed as "executable" 4998 depending on their input type, and only these can be invoked through 4999 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 5000 can be based on user input, config files, etc). The distinction is 5001 that "executable" commands cannot return anything other than a boolean 5002 result and can only support numeric or string input, whereas some 5003 discoverable commands may only be for direct use through 5004 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 5005 pointers, or other custom uses. The "executable" commands are to 5006 support parameterisations of ENGINE behaviour that can be 5007 unambiguously defined by ENGINEs and used consistently across any 5008 OpenSSL-based application. Commands have been added to all the 5009 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 5010 control over shared-library paths without source code alterations. 5011 [Geoff] 5012 5013 *) Changed all ENGINE implementations to dynamically allocate their 5014 ENGINEs rather than declaring them statically. Apart from this being 5015 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 5016 this also allows the implementations to compile without using the 5017 internal engine_int.h header. 5018 [Geoff] 5019 5020 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 5021 'const' value. Any code that should be able to modify a RAND_METHOD 5022 should already have non-const pointers to it (ie. they should only 5023 modify their own ones). 5024 [Geoff] 5025 5026 *) Made a variety of little tweaks to the ENGINE code. 5027 - "atalla" and "ubsec" string definitions were moved from header files 5028 to C code. "nuron" string definitions were placed in variables 5029 rather than hard-coded - allowing parameterisation of these values 5030 later on via ctrl() commands. 5031 - Removed unused "#if 0"'d code. 5032 - Fixed engine list iteration code so it uses ENGINE_free() to release 5033 structural references. 5034 - Constified the RAND_METHOD element of ENGINE structures. 5035 - Constified various get/set functions as appropriate and added 5036 missing functions (including a catch-all ENGINE_cpy that duplicates 5037 all ENGINE values onto a new ENGINE except reference counts/state). 5038 - Removed NULL parameter checks in get/set functions. Setting a method 5039 or function to NULL is a way of cancelling out a previously set 5040 value. Passing a NULL ENGINE parameter is just plain stupid anyway 5041 and doesn't justify the extra error symbols and code. 5042 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 5043 flags from engine_int.h to engine.h. 5044 - Changed prototypes for ENGINE handler functions (init(), finish(), 5045 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 5046 [Geoff] 5047 5048 *) Implement binary inversion algorithm for BN_mod_inverse in addition 5049 to the algorithm using long division. The binary algorithm can be 5050 used only if the modulus is odd. On 32-bit systems, it is faster 5051 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 5052 roughly 5-15% for 256-bit moduli), so we use it only for moduli 5053 up to 450 bits. In 64-bit environments, the binary algorithm 5054 appears to be advantageous for much longer moduli; here we use it 5055 for moduli up to 2048 bits. 5056 [Bodo Moeller] 5057 5058 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 5059 could not support the combine flag in choice fields. 5060 [Steve Henson] 5061 5062 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 5063 extensions from a certificate request to the certificate. 5064 [Steve Henson] 5065 5066 *) Allow multiple 'certopt' and 'nameopt' options to be separated 5067 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 5068 file: this allows the display of the certificate about to be 5069 signed to be customised, to allow certain fields to be included 5070 or excluded and extension details. The old system didn't display 5071 multicharacter strings properly, omitted fields not in the policy 5072 and couldn't display additional details such as extensions. 5073 [Steve Henson] 5074 5075 *) Function EC_POINTs_mul for multiple scalar multiplication 5076 of an arbitrary number of elliptic curve points 5077 \sum scalars[i]*points[i], 5078 optionally including the generator defined for the EC_GROUP: 5079 scalar*generator + \sum scalars[i]*points[i]. 5080 5081 EC_POINT_mul is a simple wrapper function for the typical case 5082 that the point list has just one item (besides the optional 5083 generator). 5084 [Bodo Moeller] 5085 5086 *) First EC_METHODs for curves over GF(p): 5087 5088 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 5089 operations and provides various method functions that can also 5090 operate with faster implementations of modular arithmetic. 5091 5092 EC_GFp_mont_method() reuses most functions that are part of 5093 EC_GFp_simple_method, but uses Montgomery arithmetic. 5094 5095 [Bodo Moeller; point addition and point doubling 5096 implementation directly derived from source code provided by 5097 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 5098 5099 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 5100 crypto/ec/ec_lib.c): 5101 5102 Curves are EC_GROUP objects (with an optional group generator) 5103 based on EC_METHODs that are built into the library. 5104 5105 Points are EC_POINT objects based on EC_GROUP objects. 5106 5107 Most of the framework would be able to handle curves over arbitrary 5108 finite fields, but as there are no obvious types for fields other 5109 than GF(p), some functions are limited to that for now. 5110 [Bodo Moeller] 5111 5112 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 5113 that the file contains a complete HTTP response. 5114 [Richard Levitte] 5115 5116 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 5117 change the def and num file printf format specifier from "%-40sXXX" 5118 to "%-39s XXX". The latter will always guarantee a space after the 5119 field while the former will cause them to run together if the field 5120 is 40 of more characters long. 5121 [Steve Henson] 5122 5123 *) Constify the cipher and digest 'method' functions and structures 5124 and modify related functions to take constant EVP_MD and EVP_CIPHER 5125 pointers. 5126 [Steve Henson] 5127 5128 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 5129 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 5130 [Bodo Moeller] 5131 5132 *) Modify EVP_Digest*() routines so they now return values. Although the 5133 internal software routines can never fail additional hardware versions 5134 might. 5135 [Steve Henson] 5136 5137 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 5138 5139 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 5140 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 5141 5142 ASN1 error codes 5143 ERR_R_NESTED_ASN1_ERROR 5144 ... 5145 ERR_R_MISSING_ASN1_EOS 5146 were 4 .. 9, conflicting with 5147 ERR_LIB_RSA (= ERR_R_RSA_LIB) 5148 ... 5149 ERR_LIB_PEM (= ERR_R_PEM_LIB). 5150 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 5151 5152 Add new error code 'ERR_R_INTERNAL_ERROR'. 5153 [Bodo Moeller] 5154 5155 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 5156 suffices. 5157 [Bodo Moeller] 5158 5159 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 5160 sets the subject name for a new request or supersedes the 5161 subject name in a given request. Formats that can be parsed are 5162 'CN=Some Name, OU=myOU, C=IT' 5163 and 5164 'CN=Some Name/OU=myOU/C=IT'. 5165 5166 Add options '-batch' and '-verbose' to 'openssl req'. 5167 [Massimiliano Pala <madwolf@hackmasters.net>] 5168 5169 *) Introduce the possibility to access global variables through 5170 functions on platform were that's the best way to handle exporting 5171 global variables in shared libraries. To enable this functionality, 5172 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5173 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5174 is normally done by Configure or something similar). 5175 5176 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5177 in the source file (foo.c) like this: 5178 5179 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5180 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5181 5182 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5183 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5184 5185 OPENSSL_DECLARE_GLOBAL(int,foo); 5186 #define foo OPENSSL_GLOBAL_REF(foo) 5187 OPENSSL_DECLARE_GLOBAL(double,bar); 5188 #define bar OPENSSL_GLOBAL_REF(bar) 5189 5190 The #defines are very important, and therefore so is including the 5191 header file everywhere where the defined globals are used. 5192 5193 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5194 of ASN.1 items, but that structure is a bit different. 5195 5196 The largest change is in util/mkdef.pl which has been enhanced with 5197 better and easier to understand logic to choose which symbols should 5198 go into the Windows .def files as well as a number of fixes and code 5199 cleanup (among others, algorithm keywords are now sorted 5200 lexicographically to avoid constant rewrites). 5201 [Richard Levitte] 5202 5203 *) In BN_div() keep a copy of the sign of 'num' before writing the 5204 result to 'rm' because if rm==num the value will be overwritten 5205 and produce the wrong result if 'num' is negative: this caused 5206 problems with BN_mod() and BN_nnmod(). 5207 [Steve Henson] 5208 5209 *) Function OCSP_request_verify(). This checks the signature on an 5210 OCSP request and verifies the signer certificate. The signer 5211 certificate is just checked for a generic purpose and OCSP request 5212 trust settings. 5213 [Steve Henson] 5214 5215 *) Add OCSP_check_validity() function to check the validity of OCSP 5216 responses. OCSP responses are prepared in real time and may only 5217 be a few seconds old. Simply checking that the current time lies 5218 between thisUpdate and nextUpdate max reject otherwise valid responses 5219 caused by either OCSP responder or client clock inaccuracy. Instead 5220 we allow thisUpdate and nextUpdate to fall within a certain period of 5221 the current time. The age of the response can also optionally be 5222 checked. Two new options -validity_period and -status_age added to 5223 ocsp utility. 5224 [Steve Henson] 5225 5226 *) If signature or public key algorithm is unrecognized print out its 5227 OID rather that just UNKNOWN. 5228 [Steve Henson] 5229 5230 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5231 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5232 ID to be generated from the issuer certificate alone which can then be 5233 passed to OCSP_id_issuer_cmp(). 5234 [Steve Henson] 5235 5236 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5237 ASN1 modules to export functions returning ASN1_ITEM pointers 5238 instead of the ASN1_ITEM structures themselves. This adds several 5239 new macros which allow the underlying ASN1 function/structure to 5240 be accessed transparently. As a result code should not use ASN1_ITEM 5241 references directly (such as &X509_it) but instead use the relevant 5242 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5243 use of the new ASN1 code on platforms where exporting structures 5244 is problematical (for example in shared libraries) but exporting 5245 functions returning pointers to structures is not. 5246 [Steve Henson] 5247 5248 *) Add support for overriding the generation of SSL/TLS session IDs. 5249 These callbacks can be registered either in an SSL_CTX or per SSL. 5250 The purpose of this is to allow applications to control, if they wish, 5251 the arbitrary values chosen for use as session IDs, particularly as it 5252 can be useful for session caching in multiple-server environments. A 5253 command-line switch for testing this (and any client code that wishes 5254 to use such a feature) has been added to "s_server". 5255 [Geoff Thorpe, Lutz Jaenicke] 5256 5257 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5258 of the form '#if defined(...) || defined(...) || ...' and 5259 '#if !defined(...) && !defined(...) && ...'. This also avoids 5260 the growing number of special cases it was previously handling. 5261 [Richard Levitte] 5262 5263 *) Make all configuration macros available for application by making 5264 sure they are available in opensslconf.h, by giving them names starting 5265 with "OPENSSL_" to avoid conflicts with other packages and by making 5266 sure e_os2.h will cover all platform-specific cases together with 5267 opensslconf.h. 5268 Additionally, it is now possible to define configuration/platform- 5269 specific names (called "system identities"). In the C code, these 5270 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5271 macro with the name beginning with "OPENSSL_SYS_", which is determined 5272 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5273 what is available. 5274 [Richard Levitte] 5275 5276 *) New option -set_serial to 'req' and 'x509' this allows the serial 5277 number to use to be specified on the command line. Previously self 5278 signed certificates were hard coded with serial number 0 and the 5279 CA options of 'x509' had to use a serial number in a file which was 5280 auto incremented. 5281 [Steve Henson] 5282 5283 *) New options to 'ca' utility to support V2 CRL entry extensions. 5284 Currently CRL reason, invalidity date and hold instruction are 5285 supported. Add new CRL extensions to V3 code and some new objects. 5286 [Steve Henson] 5287 5288 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5289 disable standard block padding (aka PKCS#5 padding) in the EVP 5290 API, which was previously mandatory. This means that the data is 5291 not padded in any way and so the total length much be a multiple 5292 of the block size, otherwise an error occurs. 5293 [Steve Henson] 5294 5295 *) Initial (incomplete) OCSP SSL support. 5296 [Steve Henson] 5297 5298 *) New function OCSP_parse_url(). This splits up a URL into its host, 5299 port and path components: primarily to parse OCSP URLs. New -url 5300 option to ocsp utility. 5301 [Steve Henson] 5302 5303 *) New nonce behavior. The return value of OCSP_check_nonce() now 5304 reflects the various checks performed. Applications can decide 5305 whether to tolerate certain situations such as an absent nonce 5306 in a response when one was present in a request: the ocsp application 5307 just prints out a warning. New function OCSP_add1_basic_nonce() 5308 this is to allow responders to include a nonce in a response even if 5309 the request is nonce-less. 5310 [Steve Henson] 5311 5312 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5313 skipped when using openssl x509 multiple times on a single input file, 5314 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5315 [Bodo Moeller] 5316 5317 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5318 set string type: to handle setting ASN1_TIME structures. Fix ca 5319 utility to correctly initialize revocation date of CRLs. 5320 [Steve Henson] 5321 5322 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5323 the clients preferred ciphersuites and rather use its own preferences. 5324 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5325 Internet Explorer by ensuring unchanged hash method during stepup. 5326 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5327 [Lutz Jaenicke] 5328 5329 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5330 to aes and add a new 'exist' option to print out symbols that don't 5331 appear to exist. 5332 [Steve Henson] 5333 5334 *) Additional options to ocsp utility to allow flags to be set and 5335 additional certificates supplied. 5336 [Steve Henson] 5337 5338 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5339 OCSP client a number of certificate to only verify the response 5340 signature against. 5341 [Richard Levitte] 5342 5343 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5344 handle the new API. Currently only ECB, CBC modes supported. Add new 5345 AES OIDs. 5346 5347 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5348 Encryption Standard (AES) Ciphersuites for Transport Layer 5349 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5350 not enabled by default and were not part of the "ALL" ciphersuite 5351 alias because they were not yet official; they could be 5352 explicitly requested by specifying the "AESdraft" ciphersuite 5353 group alias. In the final release of OpenSSL 0.9.7, the group 5354 alias is called "AES" and is part of "ALL".) 5355 [Ben Laurie, Steve Henson, Bodo Moeller] 5356 5357 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5358 request to response. 5359 [Steve Henson] 5360 5361 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5362 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5363 extract information from a certificate request. OCSP_response_create() 5364 creates a response and optionally adds a basic response structure. 5365 OCSP_basic_add1_status() adds a complete single response to a basic 5366 response and returns the OCSP_SINGLERESP structure just added (to allow 5367 extensions to be included for example). OCSP_basic_add1_cert() adds a 5368 certificate to a basic response and OCSP_basic_sign() signs a basic 5369 response with various flags. New helper functions ASN1_TIME_check() 5370 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5371 (converts ASN1_TIME to GeneralizedTime). 5372 [Steve Henson] 5373 5374 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5375 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5376 structure from a certificate. X509_pubkey_digest() digests the public_key 5377 contents: this is used in various key identifiers. 5378 [Steve Henson] 5379 5380 *) Make sk_sort() tolerate a NULL argument. 5381 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5382 5383 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5384 passed by the function are trusted implicitly. If any of them signed the 5385 response then it is assumed to be valid and is not verified. 5386 [Steve Henson] 5387 5388 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5389 to data. This was previously part of the PKCS7 ASN1 code. This 5390 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5391 [Steve Henson, reported by Kenneth R. Robinette 5392 <support@securenetterm.com>] 5393 5394 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5395 routines: without these tracing memory leaks is very painful. 5396 Fix leaks in PKCS12 and PKCS7 routines. 5397 [Steve Henson] 5398 5399 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5400 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5401 effectively meant GeneralizedTime would never be used. Now it 5402 is initialised to -1 but X509_time_adj() now has to check the value 5403 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5404 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5405 [Steve Henson, reported by Kenneth R. Robinette 5406 <support@securenetterm.com>] 5407 5408 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5409 result in a zero length in the ASN1_INTEGER structure which was 5410 not consistent with the structure when d2i_ASN1_INTEGER() was used 5411 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5412 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5413 where it did not print out a minus for negative ASN1_INTEGER. 5414 [Steve Henson] 5415 5416 *) Add summary printout to ocsp utility. The various functions which 5417 convert status values to strings have been renamed to: 5418 OCSP_response_status_str(), OCSP_cert_status_str() and 5419 OCSP_crl_reason_str() and are no longer static. New options 5420 to verify nonce values and to disable verification. OCSP response 5421 printout format cleaned up. 5422 [Steve Henson] 5423 5424 *) Add additional OCSP certificate checks. These are those specified 5425 in RFC2560. This consists of two separate checks: the CA of the 5426 certificate being checked must either be the OCSP signer certificate 5427 or the issuer of the OCSP signer certificate. In the latter case the 5428 OCSP signer certificate must contain the OCSP signing extended key 5429 usage. This check is performed by attempting to match the OCSP 5430 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5431 in the OCSP_CERTID structures of the response. 5432 [Steve Henson] 5433 5434 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5435 and related routines. This uses the standard OpenSSL certificate 5436 verify routines to perform initial checks (just CA validity) and 5437 to obtain the certificate chain. Then additional checks will be 5438 performed on the chain. Currently the root CA is checked to see 5439 if it is explicitly trusted for OCSP signing. This is used to set 5440 a root CA as a global signing root: that is any certificate that 5441 chains to that CA is an acceptable OCSP signing certificate. 5442 [Steve Henson] 5443 5444 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5445 extensions from a separate configuration file. 5446 As when reading extensions from the main configuration file, 5447 the '-extensions ...' option may be used for specifying the 5448 section to use. 5449 [Massimiliano Pala <madwolf@comune.modena.it>] 5450 5451 *) New OCSP utility. Allows OCSP requests to be generated or 5452 read. The request can be sent to a responder and the output 5453 parsed, outputed or printed in text form. Not complete yet: 5454 still needs to check the OCSP response validity. 5455 [Steve Henson] 5456 5457 *) New subcommands for 'openssl ca': 5458 'openssl ca -status <serial>' prints the status of the cert with 5459 the given serial number (according to the index file). 5460 'openssl ca -updatedb' updates the expiry status of certificates 5461 in the index file. 5462 [Massimiliano Pala <madwolf@comune.modena.it>] 5463 5464 *) New '-newreq-nodes' command option to CA.pl. This is like 5465 '-newreq', but calls 'openssl req' with the '-nodes' option 5466 so that the resulting key is not encrypted. 5467 [Damien Miller <djm@mindrot.org>] 5468 5469 *) New configuration for the GNU Hurd. 5470 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5471 5472 *) Initial code to implement OCSP basic response verify. This 5473 is currently incomplete. Currently just finds the signer's 5474 certificate and verifies the signature on the response. 5475 [Steve Henson] 5476 5477 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5478 value of OPENSSLDIR. This is available via the new '-d' option 5479 to 'openssl version', and is also included in 'openssl version -a'. 5480 [Bodo Moeller] 5481 5482 *) Allowing defining memory allocation callbacks that will be given 5483 file name and line number information in additional arguments 5484 (a const char* and an int). The basic functionality remains, as 5485 well as the original possibility to just replace malloc(), 5486 realloc() and free() by functions that do not know about these 5487 additional arguments. To register and find out the current 5488 settings for extended allocation functions, the following 5489 functions are provided: 5490 5491 CRYPTO_set_mem_ex_functions 5492 CRYPTO_set_locked_mem_ex_functions 5493 CRYPTO_get_mem_ex_functions 5494 CRYPTO_get_locked_mem_ex_functions 5495 5496 These work the same way as CRYPTO_set_mem_functions and friends. 5497 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5498 extended allocation function is enabled. 5499 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5500 a conventional allocation function is enabled. 5501 [Richard Levitte, Bodo Moeller] 5502 5503 *) Finish off removing the remaining LHASH function pointer casts. 5504 There should no longer be any prototype-casting required when using 5505 the LHASH abstraction, and any casts that remain are "bugs". See 5506 the callback types and macros at the head of lhash.h for details 5507 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5508 [Geoff Thorpe] 5509 5510 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5511 If /dev/[u]random devices are not available or do not return enough 5512 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5513 be queried. 5514 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5515 /etc/entropy will be queried once each in this sequence, quering stops 5516 when enough entropy was collected without querying more sockets. 5517 [Lutz Jaenicke] 5518 5519 *) Change the Unix RAND_poll() variant to be able to poll several 5520 random devices, as specified by DEVRANDOM, until a sufficient amount 5521 of data has been collected. We spend at most 10 ms on each file 5522 (select timeout) and read in non-blocking mode. DEVRANDOM now 5523 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5524 (previously it was just the string "/dev/urandom"), so on typical 5525 platforms the 10 ms delay will never occur. 5526 Also separate out the Unix variant to its own file, rand_unix.c. 5527 For VMS, there's a currently-empty rand_vms.c. 5528 [Richard Levitte] 5529 5530 *) Move OCSP client related routines to ocsp_cl.c. These 5531 provide utility functions which an application needing 5532 to issue a request to an OCSP responder and analyse the 5533 response will typically need: as opposed to those which an 5534 OCSP responder itself would need which will be added later. 5535 5536 OCSP_request_sign() signs an OCSP request with an API similar 5537 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5538 response. OCSP_response_get1_basic() extracts basic response 5539 from response. OCSP_resp_find_status(): finds and extracts status 5540 information from an OCSP_CERTID structure (which will be created 5541 when the request structure is built). These are built from lower 5542 level functions which work on OCSP_SINGLERESP structures but 5543 wont normally be used unless the application wishes to examine 5544 extensions in the OCSP response for example. 5545 5546 Replace nonce routines with a pair of functions. 5547 OCSP_request_add1_nonce() adds a nonce value and optionally 5548 generates a random value. OCSP_check_nonce() checks the 5549 validity of the nonce in an OCSP response. 5550 [Steve Henson] 5551 5552 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5553 This doesn't copy the supplied OCSP_CERTID and avoids the 5554 need to free up the newly created id. Change return type 5555 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5556 This can then be used to add extensions to the request. 5557 Deleted OCSP_request_new(), since most of its functionality 5558 is now in OCSP_REQUEST_new() (and the case insensitive name 5559 clash) apart from the ability to set the request name which 5560 will be added elsewhere. 5561 [Steve Henson] 5562 5563 *) Update OCSP API. Remove obsolete extensions argument from 5564 various functions. Extensions are now handled using the new 5565 OCSP extension code. New simple OCSP HTTP function which 5566 can be used to send requests and parse the response. 5567 [Steve Henson] 5568 5569 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5570 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5571 uses the special reorder version of SET OF to sort the attributes 5572 and reorder them to match the encoded order. This resolves a long 5573 standing problem: a verify on a PKCS7 structure just after signing 5574 it used to fail because the attribute order did not match the 5575 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5576 it uses the received order. This is necessary to tolerate some broken 5577 software that does not order SET OF. This is handled by encoding 5578 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5579 to produce the required SET OF. 5580 [Steve Henson] 5581 5582 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5583 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5584 files to get correct declarations of the ASN.1 item variables. 5585 [Richard Levitte] 5586 5587 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5588 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5589 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5590 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5591 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5592 ASN1_ITEM and no wrapper functions. 5593 [Steve Henson] 5594 5595 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5596 replace the old function pointer based I/O routines. Change most of 5597 the *_d2i_bio() and *_d2i_fp() functions to use these. 5598 [Steve Henson] 5599 5600 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5601 lines, recognice more "algorithms" that can be deselected, and make 5602 it complain about algorithm deselection that isn't recognised. 5603 [Richard Levitte] 5604 5605 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5606 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5607 to use new functions. Add NO_ASN1_OLD which can be set to remove 5608 some old style ASN1 functions: this can be used to determine if old 5609 code will still work when these eventually go away. 5610 [Steve Henson] 5611 5612 *) New extension functions for OCSP structures, these follow the 5613 same conventions as certificates and CRLs. 5614 [Steve Henson] 5615 5616 *) New function X509V3_add1_i2d(). This automatically encodes and 5617 adds an extension. Its behaviour can be customised with various 5618 flags to append, replace or delete. Various wrappers added for 5619 certifcates and CRLs. 5620 [Steve Henson] 5621 5622 *) Fix to avoid calling the underlying ASN1 print routine when 5623 an extension cannot be parsed. Correct a typo in the 5624 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5625 [Steve Henson] 5626 5627 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5628 entries for variables. 5629 [Steve Henson] 5630 5631 *) Add functionality to apps/openssl.c for detecting locking 5632 problems: As the program is single-threaded, all we have 5633 to do is register a locking callback using an array for 5634 storing which locks are currently held by the program. 5635 [Bodo Moeller] 5636 5637 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5638 SSL_get_ex_data_X509_STORE_idx(), which is used in 5639 ssl_verify_cert_chain() and thus can be called at any time 5640 during TLS/SSL handshakes so that thread-safety is essential. 5641 Unfortunately, the ex_data design is not at all suited 5642 for multi-threaded use, so it probably should be abolished. 5643 [Bodo Moeller] 5644 5645 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5646 [Broadcom, tweaked and integrated by Geoff Thorpe] 5647 5648 *) Move common extension printing code to new function 5649 X509V3_print_extensions(). Reorganise OCSP print routines and 5650 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5651 [Steve Henson] 5652 5653 *) New function X509_signature_print() to remove duplication in some 5654 print routines. 5655 [Steve Henson] 5656 5657 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5658 set (this was treated exactly the same as SET OF previously). This 5659 is used to reorder the STACK representing the structure to match the 5660 encoding. This will be used to get round a problem where a PKCS7 5661 structure which was signed could not be verified because the STACK 5662 order did not reflect the encoded order. 5663 [Steve Henson] 5664 5665 *) Reimplement the OCSP ASN1 module using the new code. 5666 [Steve Henson] 5667 5668 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5669 for its ASN1 operations. The old style function pointers still exist 5670 for now but they will eventually go away. 5671 [Steve Henson] 5672 5673 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5674 completely replaces the old ASN1 functionality with a table driven 5675 encoder and decoder which interprets an ASN1_ITEM structure describing 5676 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5677 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5678 has also been converted to the new form. 5679 [Steve Henson] 5680 5681 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5682 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5683 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5684 for negative moduli. 5685 [Bodo Moeller] 5686 5687 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5688 of not touching the result's sign bit. 5689 [Bodo Moeller] 5690 5691 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5692 set. 5693 [Bodo Moeller] 5694 5695 *) Changed the LHASH code to use prototypes for callbacks, and created 5696 macros to declare and implement thin (optionally static) functions 5697 that provide type-safety and avoid function pointer casting for the 5698 type-specific callbacks. 5699 [Geoff Thorpe] 5700 5701 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5702 RFC 2712. 5703 [Veers Staats <staatsvr@asc.hpc.mil>, 5704 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5705 5706 *) Reformat the FAQ so the different questions and answers can be divided 5707 in sections depending on the subject. 5708 [Richard Levitte] 5709 5710 *) Have the zlib compression code load ZLIB.DLL dynamically under 5711 Windows. 5712 [Richard Levitte] 5713 5714 *) New function BN_mod_sqrt for computing square roots modulo a prime 5715 (using the probabilistic Tonelli-Shanks algorithm unless 5716 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5717 be handled deterministically). 5718 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5719 5720 *) Make BN_mod_inverse faster by explicitly handling small quotients 5721 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5722 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5723 [Bodo Moeller] 5724 5725 *) New function BN_kronecker. 5726 [Bodo Moeller] 5727 5728 *) Fix BN_gcd so that it works on negative inputs; the result is 5729 positive unless both parameters are zero. 5730 Previously something reasonably close to an infinite loop was 5731 possible because numbers could be growing instead of shrinking 5732 in the implementation of Euclid's algorithm. 5733 [Bodo Moeller] 5734 5735 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5736 sign of the number in question. 5737 5738 Fix BN_is_word(a,w) to work correctly for w == 0. 5739 5740 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5741 because its test if the absolute value of 'a' equals 'w'. 5742 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5743 it exists mostly for use in the implementations of BN_is_zero(), 5744 BN_is_one(), and BN_is_word(). 5745 [Bodo Moeller] 5746 5747 *) New function BN_swap. 5748 [Bodo Moeller] 5749 5750 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5751 the exponentiation functions are more likely to produce reasonable 5752 results on negative inputs. 5753 [Bodo Moeller] 5754 5755 *) Change BN_mod_mul so that the result is always non-negative. 5756 Previously, it could be negative if one of the factors was negative; 5757 I don't think anyone really wanted that behaviour. 5758 [Bodo Moeller] 5759 5760 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5761 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5762 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5763 and add new functions: 5764 5765 BN_nnmod 5766 BN_mod_sqr 5767 BN_mod_add 5768 BN_mod_add_quick 5769 BN_mod_sub 5770 BN_mod_sub_quick 5771 BN_mod_lshift1 5772 BN_mod_lshift1_quick 5773 BN_mod_lshift 5774 BN_mod_lshift_quick 5775 5776 These functions always generate non-negative results. 5777 5778 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5779 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5780 5781 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5782 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5783 be reduced modulo m. 5784 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5785 5786#if 0 5787 The following entry accidentily appeared in the CHANGES file 5788 distributed with OpenSSL 0.9.7. The modifications described in 5789 it do *not* apply to OpenSSL 0.9.7. 5790 5791 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5792 was actually never needed) and in BN_mul(). The removal in BN_mul() 5793 required a small change in bn_mul_part_recursive() and the addition 5794 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5795 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5796 bn_sub_words() and bn_add_words() except they take arrays with 5797 differing sizes. 5798 [Richard Levitte] 5799#endif 5800 5801 *) In 'openssl passwd', verify passwords read from the terminal 5802 unless the '-salt' option is used (which usually means that 5803 verification would just waste user's time since the resulting 5804 hash is going to be compared with some given password hash) 5805 or the new '-noverify' option is used. 5806 5807 This is an incompatible change, but it does not affect 5808 non-interactive use of 'openssl passwd' (passwords on the command 5809 line, '-stdin' option, '-in ...' option) and thus should not 5810 cause any problems. 5811 [Bodo Moeller] 5812 5813 *) Remove all references to RSAref, since there's no more need for it. 5814 [Richard Levitte] 5815 5816 *) Make DSO load along a path given through an environment variable 5817 (SHLIB_PATH) with shl_load(). 5818 [Richard Levitte] 5819 5820 *) Constify the ENGINE code as a result of BIGNUM constification. 5821 Also constify the RSA code and most things related to it. In a 5822 few places, most notable in the depth of the ASN.1 code, ugly 5823 casts back to non-const were required (to be solved at a later 5824 time) 5825 [Richard Levitte] 5826 5827 *) Make it so the openssl application has all engines loaded by default. 5828 [Richard Levitte] 5829 5830 *) Constify the BIGNUM routines a little more. 5831 [Richard Levitte] 5832 5833 *) Add the following functions: 5834 5835 ENGINE_load_cswift() 5836 ENGINE_load_chil() 5837 ENGINE_load_atalla() 5838 ENGINE_load_nuron() 5839 ENGINE_load_builtin_engines() 5840 5841 That way, an application can itself choose if external engines that 5842 are built-in in OpenSSL shall ever be used or not. The benefit is 5843 that applications won't have to be linked with libdl or other dso 5844 libraries unless it's really needed. 5845 5846 Changed 'openssl engine' to load all engines on demand. 5847 Changed the engine header files to avoid the duplication of some 5848 declarations (they differed!). 5849 [Richard Levitte] 5850 5851 *) 'openssl engine' can now list capabilities. 5852 [Richard Levitte] 5853 5854 *) Better error reporting in 'openssl engine'. 5855 [Richard Levitte] 5856 5857 *) Never call load_dh_param(NULL) in s_server. 5858 [Bodo Moeller] 5859 5860 *) Add engine application. It can currently list engines by name and 5861 identity, and test if they are actually available. 5862 [Richard Levitte] 5863 5864 *) Improve RPM specification file by forcing symbolic linking and making 5865 sure the installed documentation is also owned by root.root. 5866 [Damien Miller <djm@mindrot.org>] 5867 5868 *) Give the OpenSSL applications more possibilities to make use of 5869 keys (public as well as private) handled by engines. 5870 [Richard Levitte] 5871 5872 *) Add OCSP code that comes from CertCo. 5873 [Richard Levitte] 5874 5875 *) Add VMS support for the Rijndael code. 5876 [Richard Levitte] 5877 5878 *) Added untested support for Nuron crypto accelerator. 5879 [Ben Laurie] 5880 5881 *) Add support for external cryptographic devices. This code was 5882 previously distributed separately as the "engine" branch. 5883 [Geoff Thorpe, Richard Levitte] 5884 5885 *) Rework the filename-translation in the DSO code. It is now possible to 5886 have far greater control over how a "name" is turned into a filename 5887 depending on the operating environment and any oddities about the 5888 different shared library filenames on each system. 5889 [Geoff Thorpe] 5890 5891 *) Support threads on FreeBSD-elf in Configure. 5892 [Richard Levitte] 5893 5894 *) Fix for SHA1 assembly problem with MASM: it produces 5895 warnings about corrupt line number information when assembling 5896 with debugging information. This is caused by the overlapping 5897 of two sections. 5898 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5899 5900 *) NCONF changes. 5901 NCONF_get_number() has no error checking at all. As a replacement, 5902 NCONF_get_number_e() is defined (_e for "error checking") and is 5903 promoted strongly. The old NCONF_get_number is kept around for 5904 binary backward compatibility. 5905 Make it possible for methods to load from something other than a BIO, 5906 by providing a function pointer that is given a name instead of a BIO. 5907 For example, this could be used to load configuration data from an 5908 LDAP server. 5909 [Richard Levitte] 5910 5911 *) Fix for non blocking accept BIOs. Added new I/O special reason 5912 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5913 with non blocking I/O was not possible because no retry code was 5914 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5915 this case. 5916 [Steve Henson] 5917 5918 *) Added the beginnings of Rijndael support. 5919 [Ben Laurie] 5920 5921 *) Fix for bug in DirectoryString mask setting. Add support for 5922 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5923 to allow certificate printing to more controllable, additional 5924 'certopt' option to 'x509' to allow new printing options to be 5925 set. 5926 [Steve Henson] 5927 5928 *) Clean old EAY MD5 hack from e_os.h. 5929 [Richard Levitte] 5930 5931 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5932 5933 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5934 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5935 [Joe Orton, Steve Henson] 5936 5937 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5938 5939 *) Fix additional bug revealed by the NISCC test suite: 5940 5941 Stop bug triggering large recursion when presented with 5942 certain ASN.1 tags (CVE-2003-0851) 5943 [Steve Henson] 5944 5945 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5946 5947 *) Fix various bugs revealed by running the NISCC test suite: 5948 5949 Stop out of bounds reads in the ASN1 code when presented with 5950 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5951 5952 If verify callback ignores invalid public key errors don't try to check 5953 certificate signature with the NULL public key. 5954 5955 [Steve Henson] 5956 5957 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5958 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5959 specifications. 5960 [Steve Henson] 5961 5962 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5963 extra data after the compression methods not only for TLS 1.0 5964 but also for SSL 3.0 (as required by the specification). 5965 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5966 5967 *) Change X509_certificate_type() to mark the key as exported/exportable 5968 when it's 512 *bits* long, not 512 bytes. 5969 [Richard Levitte] 5970 5971 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5972 5973 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5974 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5975 a protocol version number mismatch like a decryption error 5976 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5977 [Bodo Moeller] 5978 5979 *) Turn on RSA blinding by default in the default implementation 5980 to avoid a timing attack. Applications that don't want it can call 5981 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5982 They would be ill-advised to do so in most cases. 5983 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5984 5985 *) Change RSA blinding code so that it works when the PRNG is not 5986 seeded (in this case, the secret RSA exponent is abused as 5987 an unpredictable seed -- if it is not unpredictable, there 5988 is no point in blinding anyway). Make RSA blinding thread-safe 5989 by remembering the creator's thread ID in rsa->blinding and 5990 having all other threads use local one-time blinding factors 5991 (this requires more computation than sharing rsa->blinding, but 5992 avoids excessive locking; and if an RSA object is not shared 5993 between threads, blinding will still be very fast). 5994 [Bodo Moeller] 5995 5996 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5997 5998 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5999 via timing by performing a MAC computation even if incorrrect 6000 block cipher padding has been found. This is a countermeasure 6001 against active attacks where the attacker has to distinguish 6002 between bad padding and a MAC verification error. (CVE-2003-0078) 6003 6004 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 6005 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 6006 Martin Vuagnoux (EPFL, Ilion)] 6007 6008 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 6009 6010 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 6011 memory from it's contents. This is done with a counter that will 6012 place alternating values in each byte. This can be used to solve 6013 two issues: 1) the removal of calls to memset() by highly optimizing 6014 compilers, and 2) cleansing with other values than 0, since those can 6015 be read through on certain media, for example a swap space on disk. 6016 [Geoff Thorpe] 6017 6018 *) Bugfix: client side session caching did not work with external caching, 6019 because the session->cipher setting was not restored when reloading 6020 from the external cache. This problem was masked, when 6021 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 6022 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 6023 [Lutz Jaenicke] 6024 6025 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 6026 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 6027 [Zeev Lieber <zeev-l@yahoo.com>] 6028 6029 *) Undo an undocumented change introduced in 0.9.6e which caused 6030 repeated calls to OpenSSL_add_all_ciphers() and 6031 OpenSSL_add_all_digests() to be ignored, even after calling 6032 EVP_cleanup(). 6033 [Richard Levitte] 6034 6035 *) Change the default configuration reader to deal with last line not 6036 being properly terminated. 6037 [Richard Levitte] 6038 6039 *) Change X509_NAME_cmp() so it applies the special rules on handling 6040 DN values that are of type PrintableString, as well as RDNs of type 6041 emailAddress where the value has the type ia5String. 6042 [stefank@valicert.com via Richard Levitte] 6043 6044 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 6045 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 6046 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 6047 the bitwise-OR of the two for use by the majority of applications 6048 wanting this behaviour, and update the docs. The documented 6049 behaviour and actual behaviour were inconsistent and had been 6050 changing anyway, so this is more a bug-fix than a behavioural 6051 change. 6052 [Geoff Thorpe, diagnosed by Nadav Har'El] 6053 6054 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 6055 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 6056 [Bodo Moeller] 6057 6058 *) Fix initialization code race conditions in 6059 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 6060 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 6061 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 6062 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 6063 ssl2_get_cipher_by_char(), 6064 ssl3_get_cipher_by_char(). 6065 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 6066 6067 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 6068 the cached sessions are flushed, as the remove_cb() might use ex_data 6069 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 6070 (see [openssl.org #212]). 6071 [Geoff Thorpe, Lutz Jaenicke] 6072 6073 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 6074 length, instead of the encoding length to d2i_ASN1_OBJECT. 6075 [Steve Henson] 6076 6077 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 6078 6079 *) [In 0.9.6g-engine release:] 6080 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 6081 [Lynn Gazis <lgazis@rainbow.com>] 6082 6083 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 6084 6085 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 6086 and get fix the header length calculation. 6087 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 6088 Alon Kantor <alonk@checkpoint.com> (and others), 6089 Steve Henson] 6090 6091 *) Use proper error handling instead of 'assertions' in buffer 6092 overflow checks added in 0.9.6e. This prevents DoS (the 6093 assertions could call abort()). 6094 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 6095 6096 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 6097 6098 *) Add various sanity checks to asn1_get_length() to reject 6099 the ASN1 length bytes if they exceed sizeof(long), will appear 6100 negative or the content length exceeds the length of the 6101 supplied buffer. 6102 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6103 6104 *) Fix cipher selection routines: ciphers without encryption had no flags 6105 for the cipher strength set and where therefore not handled correctly 6106 by the selection routines (PR #130). 6107 [Lutz Jaenicke] 6108 6109 *) Fix EVP_dsa_sha macro. 6110 [Nils Larsch] 6111 6112 *) New option 6113 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 6114 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 6115 that was added in OpenSSL 0.9.6d. 6116 6117 As the countermeasure turned out to be incompatible with some 6118 broken SSL implementations, the new option is part of SSL_OP_ALL. 6119 SSL_OP_ALL is usually employed when compatibility with weird SSL 6120 implementations is desired (e.g. '-bugs' option to 's_client' and 6121 's_server'), so the new option is automatically set in many 6122 applications. 6123 [Bodo Moeller] 6124 6125 *) Changes in security patch: 6126 6127 Changes marked "(CHATS)" were sponsored by the Defense Advanced 6128 Research Projects Agency (DARPA) and Air Force Research Laboratory, 6129 Air Force Materiel Command, USAF, under agreement number 6130 F30602-01-2-0537. 6131 6132 *) Add various sanity checks to asn1_get_length() to reject 6133 the ASN1 length bytes if they exceed sizeof(long), will appear 6134 negative or the content length exceeds the length of the 6135 supplied buffer. (CVE-2002-0659) 6136 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6137 6138 *) Assertions for various potential buffer overflows, not known to 6139 happen in practice. 6140 [Ben Laurie (CHATS)] 6141 6142 *) Various temporary buffers to hold ASCII versions of integers were 6143 too small for 64 bit platforms. (CVE-2002-0655) 6144 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 6145 6146 *) Remote buffer overflow in SSL3 protocol - an attacker could 6147 supply an oversized session ID to a client. (CVE-2002-0656) 6148 [Ben Laurie (CHATS)] 6149 6150 *) Remote buffer overflow in SSL2 protocol - an attacker could 6151 supply an oversized client master key. (CVE-2002-0656) 6152 [Ben Laurie (CHATS)] 6153 6154 Changes between 0.9.6c and 0.9.6d [9 May 2002] 6155 6156 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 6157 encoded as NULL) with id-dsa-with-sha1. 6158 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 6159 6160 *) Check various X509_...() return values in apps/req.c. 6161 [Nils Larsch <nla@trustcenter.de>] 6162 6163 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6164 an end-of-file condition would erronously be flagged, when the CRLF 6165 was just at the end of a processed block. The bug was discovered when 6166 processing data through a buffering memory BIO handing the data to a 6167 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6168 <ptsekov@syntrex.com> and Nedelcho Stanev. 6169 [Lutz Jaenicke] 6170 6171 *) Implement a countermeasure against a vulnerability recently found 6172 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6173 before application data chunks to avoid the use of known IVs 6174 with data potentially chosen by the attacker. 6175 [Bodo Moeller] 6176 6177 *) Fix length checks in ssl3_get_client_hello(). 6178 [Bodo Moeller] 6179 6180 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6181 to prevent ssl3_read_internal() from incorrectly assuming that 6182 ssl3_read_bytes() found application data while handshake 6183 processing was enabled when in fact s->s3->in_read_app_data was 6184 merely automatically cleared during the initial handshake. 6185 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6186 6187 *) Fix object definitions for Private and Enterprise: they were not 6188 recognized in their shortname (=lowercase) representation. Extend 6189 obj_dat.pl to issue an error when using undefined keywords instead 6190 of silently ignoring the problem (Svenning Sorensen 6191 <sss@sss.dnsalias.net>). 6192 [Lutz Jaenicke] 6193 6194 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6195 generators, i.e. generators other than 2 and 5. (Previously, the 6196 code did not properly initialise the 'add' and 'rem' values to 6197 BN_generate_prime().) 6198 6199 In the new general case, we do not insist that 'generator' is 6200 actually a primitive root: This requirement is rather pointless; 6201 a generator of the order-q subgroup is just as good, if not 6202 better. 6203 [Bodo Moeller] 6204 6205 *) Map new X509 verification errors to alerts. Discovered and submitted by 6206 Tom Wu <tom@arcot.com>. 6207 [Lutz Jaenicke] 6208 6209 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6210 returning non-zero before the data has been completely received 6211 when using non-blocking I/O. 6212 [Bodo Moeller; problem pointed out by John Hughes] 6213 6214 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6215 [Ben Laurie, Lutz Jaenicke] 6216 6217 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6218 Yoram Zahavi <YoramZ@gilian.com>). 6219 [Lutz Jaenicke] 6220 6221 *) Add information about CygWin 1.3 and on, and preserve proper 6222 configuration for the versions before that. 6223 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6224 6225 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6226 check whether we deal with a copy of a session and do not delete from 6227 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6228 <izhar@checkpoint.com>. 6229 [Lutz Jaenicke] 6230 6231 *) Do not store session data into the internal session cache, if it 6232 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6233 flag is set). Proposed by Aslam <aslam@funk.com>. 6234 [Lutz Jaenicke] 6235 6236 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6237 value is 0. 6238 [Richard Levitte] 6239 6240 *) [In 0.9.6d-engine release:] 6241 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6242 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6243 6244 *) Add the configuration target linux-s390x. 6245 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6246 6247 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6248 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6249 variable as an indication that a ClientHello message has been 6250 received. As the flag value will be lost between multiple 6251 invocations of ssl3_accept when using non-blocking I/O, the 6252 function may not be aware that a handshake has actually taken 6253 place, thus preventing a new session from being added to the 6254 session cache. 6255 6256 To avoid this problem, we now set s->new_session to 2 instead of 6257 using a local variable. 6258 [Lutz Jaenicke, Bodo Moeller] 6259 6260 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6261 if the SSL_R_LENGTH_MISMATCH error is detected. 6262 [Geoff Thorpe, Bodo Moeller] 6263 6264 *) New 'shared_ldflag' column in Configure platform table. 6265 [Richard Levitte] 6266 6267 *) Fix EVP_CIPHER_mode macro. 6268 ["Dan S. Camper" <dan@bti.net>] 6269 6270 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6271 type, we must throw them away by setting rr->length to 0. 6272 [D P Chang <dpc@qualys.com>] 6273 6274 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6275 6276 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6277 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6278 worked incorrectly for those cases where range = 10..._2 and 6279 3*range is two bits longer than range.) 6280 [Bodo Moeller] 6281 6282 *) Only add signing time to PKCS7 structures if it is not already 6283 present. 6284 [Steve Henson] 6285 6286 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6287 OBJ_ld_ce should be OBJ_id_ce. 6288 Also some ip-pda OIDs in crypto/objects/objects.txt were 6289 incorrect (cf. RFC 3039). 6290 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6291 6292 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6293 returns early because it has nothing to do. 6294 [Andy Schneider <andy.schneider@bjss.co.uk>] 6295 6296 *) [In 0.9.6c-engine release:] 6297 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6298 [Andy Schneider <andy.schneider@bjss.co.uk>] 6299 6300 *) [In 0.9.6c-engine release:] 6301 Add support for Cryptographic Appliance's keyserver technology. 6302 (Use engine 'keyclient') 6303 [Cryptographic Appliances and Geoff Thorpe] 6304 6305 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6306 is called via tools/c89.sh because arguments have to be 6307 rearranged (all '-L' options must appear before the first object 6308 modules). 6309 [Richard Shapiro <rshapiro@abinitio.com>] 6310 6311 *) [In 0.9.6c-engine release:] 6312 Add support for Broadcom crypto accelerator cards, backported 6313 from 0.9.7. 6314 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6315 6316 *) [In 0.9.6c-engine release:] 6317 Add support for SureWare crypto accelerator cards from 6318 Baltimore Technologies. (Use engine 'sureware') 6319 [Baltimore Technologies and Mark Cox] 6320 6321 *) [In 0.9.6c-engine release:] 6322 Add support for crypto accelerator cards from Accelerated 6323 Encryption Processing, www.aep.ie. (Use engine 'aep') 6324 [AEP Inc. and Mark Cox] 6325 6326 *) Add a configuration entry for gcc on UnixWare. 6327 [Gary Benson <gbenson@redhat.com>] 6328 6329 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6330 messages are stored in a single piece (fixed-length part and 6331 variable-length part combined) and fix various bugs found on the way. 6332 [Bodo Moeller] 6333 6334 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6335 instead. BIO_gethostbyname() does not know what timeouts are 6336 appropriate, so entries would stay in cache even when they have 6337 become invalid. 6338 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6339 6340 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6341 faced with a pathologically small ClientHello fragment that does 6342 not contain client_version: Instead of aborting with an error, 6343 simply choose the highest available protocol version (i.e., 6344 TLS 1.0 unless it is disabled). In practice, ClientHello 6345 messages are never sent like this, but this change gives us 6346 strictly correct behaviour at least for TLS. 6347 [Bodo Moeller] 6348 6349 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6350 never resets s->method to s->ctx->method when called from within 6351 one of the SSL handshake functions. 6352 [Bodo Moeller; problem pointed out by Niko Baric] 6353 6354 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6355 (sent using the client's version number) if client_version is 6356 smaller than the protocol version in use. Also change 6357 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6358 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6359 the client will at least see that alert. 6360 [Bodo Moeller] 6361 6362 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6363 correctly. 6364 [Bodo Moeller] 6365 6366 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6367 client receives HelloRequest while in a handshake. 6368 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6369 6370 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6371 should end in 'break', not 'goto end' which circuments various 6372 cleanups done in state SSL_ST_OK. But session related stuff 6373 must be disabled for SSL_ST_OK in the case that we just sent a 6374 HelloRequest. 6375 6376 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6377 before just sending a HelloRequest. 6378 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6379 6380 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6381 reveal whether illegal block cipher padding was found or a MAC 6382 verification error occured. (Neither SSLerr() codes nor alerts 6383 are directly visible to potential attackers, but the information 6384 may leak via logfiles.) 6385 6386 Similar changes are not required for the SSL 2.0 implementation 6387 because the number of padding bytes is sent in clear for SSL 2.0, 6388 and the extra bytes are just ignored. However ssl/s2_pkt.c 6389 failed to verify that the purported number of padding bytes is in 6390 the legal range. 6391 [Bodo Moeller] 6392 6393 *) Add OpenUNIX-8 support including shared libraries 6394 (Boyd Lynn Gerber <gerberb@zenez.com>). 6395 [Lutz Jaenicke] 6396 6397 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6398 'wristwatch attack' using huge encoding parameters (cf. 6399 James H. Manger's CRYPTO 2001 paper). Note that the 6400 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6401 encoding parameters and hence was not vulnerable. 6402 [Bodo Moeller] 6403 6404 *) BN_sqr() bug fix. 6405 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6406 6407 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6408 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6409 followed by modular reduction. 6410 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6411 6412 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6413 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6414 [Bodo Moeller] 6415 6416 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6417 This function was broken, as the check for a new client hello message 6418 to handle SGC did not allow these large messages. 6419 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6420 [Lutz Jaenicke] 6421 6422 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6423 [Lutz Jaenicke] 6424 6425 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6426 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6427 [Lutz Jaenicke] 6428 6429 *) Rework the configuration and shared library support for Tru64 Unix. 6430 The configuration part makes use of modern compiler features and 6431 still retains old compiler behavior for those that run older versions 6432 of the OS. The shared library support part includes a variant that 6433 uses the RPATH feature, and is available through the special 6434 configuration target "alpha-cc-rpath", which will never be selected 6435 automatically. 6436 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6437 6438 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6439 with the same message size as in ssl3_get_certificate_request(). 6440 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6441 messages might inadvertently be reject as too long. 6442 [Petr Lampa <lampa@fee.vutbr.cz>] 6443 6444 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6445 [Andy Polyakov] 6446 6447 *) Modified SSL library such that the verify_callback that has been set 6448 specificly for an SSL object with SSL_set_verify() is actually being 6449 used. Before the change, a verify_callback set with this function was 6450 ignored and the verify_callback() set in the SSL_CTX at the time of 6451 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6452 to allow the necessary settings. 6453 [Lutz Jaenicke] 6454 6455 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6456 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6457 done automatically (in contradiction to the requirements of the C 6458 standard). This made problems when used from OpenSSH. 6459 [Lutz Jaenicke] 6460 6461 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6462 dh->length and always used 6463 6464 BN_rand_range(priv_key, dh->p). 6465 6466 BN_rand_range() is not necessary for Diffie-Hellman, and this 6467 specific range makes Diffie-Hellman unnecessarily inefficient if 6468 dh->length (recommended exponent length) is much smaller than the 6469 length of dh->p. We could use BN_rand_range() if the order of 6470 the subgroup was stored in the DH structure, but we only have 6471 dh->length. 6472 6473 So switch back to 6474 6475 BN_rand(priv_key, l, ...) 6476 6477 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6478 otherwise. 6479 [Bodo Moeller] 6480 6481 *) In 6482 6483 RSA_eay_public_encrypt 6484 RSA_eay_private_decrypt 6485 RSA_eay_private_encrypt (signing) 6486 RSA_eay_public_decrypt (signature verification) 6487 6488 (default implementations for RSA_public_encrypt, 6489 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6490 always reject numbers >= n. 6491 [Bodo Moeller] 6492 6493 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6494 to synchronize access to 'locking_thread'. This is necessary on 6495 systems where access to 'locking_thread' (an 'unsigned long' 6496 variable) is not atomic. 6497 [Bodo Moeller] 6498 6499 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6500 *before* setting the 'crypto_lock_rand' flag. The previous code had 6501 a race condition if 0 is a valid thread ID. 6502 [Travis Vitek <vitek@roguewave.com>] 6503 6504 *) Add support for shared libraries under Irix. 6505 [Albert Chin-A-Young <china@thewrittenword.com>] 6506 6507 *) Add configuration option to build on Linux on both big-endian and 6508 little-endian MIPS. 6509 [Ralf Baechle <ralf@uni-koblenz.de>] 6510 6511 *) Add the possibility to create shared libraries on HP-UX. 6512 [Richard Levitte] 6513 6514 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6515 6516 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6517 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6518 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6519 PRNG state recovery was possible based on the output of 6520 one PRNG request appropriately sized to gain knowledge on 6521 'md' followed by enough consecutive 1-byte PRNG requests 6522 to traverse all of 'state'. 6523 6524 1. When updating 'md_local' (the current thread's copy of 'md') 6525 during PRNG output generation, hash all of the previous 6526 'md_local' value, not just the half used for PRNG output. 6527 6528 2. Make the number of bytes from 'state' included into the hash 6529 independent from the number of PRNG bytes requested. 6530 6531 The first measure alone would be sufficient to avoid 6532 Markku-Juhani's attack. (Actually it had never occurred 6533 to me that the half of 'md_local' used for chaining was the 6534 half from which PRNG output bytes were taken -- I had always 6535 assumed that the secret half would be used.) The second 6536 measure makes sure that additional data from 'state' is never 6537 mixed into 'md_local' in small portions; this heuristically 6538 further strengthens the PRNG. 6539 [Bodo Moeller] 6540 6541 *) Fix crypto/bn/asm/mips3.s. 6542 [Andy Polyakov] 6543 6544 *) When only the key is given to "enc", the IV is undefined. Print out 6545 an error message in this case. 6546 [Lutz Jaenicke] 6547 6548 *) Handle special case when X509_NAME is empty in X509 printing routines. 6549 [Steve Henson] 6550 6551 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6552 positive and less than q. 6553 [Bodo Moeller] 6554 6555 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6556 used: it isn't thread safe and the add_lock_callback should handle 6557 that itself. 6558 [Paul Rose <Paul.Rose@bridge.com>] 6559 6560 *) Verify that incoming data obeys the block size in 6561 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6562 [Bodo Moeller] 6563 6564 *) Fix OAEP check. 6565 [Ulf M�ller, Bodo M�ller] 6566 6567 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6568 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6569 when fixing the server behaviour for backwards-compatible 'client 6570 hello' messages. (Note that the attack is impractical against 6571 SSL 3.0 and TLS 1.0 anyway because length and version checking 6572 means that the probability of guessing a valid ciphertext is 6573 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6574 paper.) 6575 6576 Before 0.9.5, the countermeasure (hide the error by generating a 6577 random 'decryption result') did not work properly because 6578 ERR_clear_error() was missing, meaning that SSL_get_error() would 6579 detect the supposedly ignored error. 6580 6581 Both problems are now fixed. 6582 [Bodo Moeller] 6583 6584 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6585 (previously it was 1024). 6586 [Bodo Moeller] 6587 6588 *) Fix for compatibility mode trust settings: ignore trust settings 6589 unless some valid trust or reject settings are present. 6590 [Steve Henson] 6591 6592 *) Fix for blowfish EVP: its a variable length cipher. 6593 [Steve Henson] 6594 6595 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6596 parameters in DSA public key structures and return an error in the 6597 DSA routines if parameters are absent. 6598 [Steve Henson] 6599 6600 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6601 in the current directory if neither $RANDFILE nor $HOME was set. 6602 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6603 caused some confusion to Windows users who haven't defined $HOME. 6604 Thus RAND_file_name() is changed again: e_os.h can define a 6605 DEFAULT_HOME, which will be used if $HOME is not set. 6606 For Windows, we use "C:"; on other platforms, we still require 6607 environment variables. 6608 6609 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6610 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6611 having multiple threads call RAND_poll() concurrently. 6612 [Bodo Moeller] 6613 6614 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6615 combination of a flag and a thread ID variable. 6616 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6617 flag), *other* threads can enter ssleay_add_bytes without obeying 6618 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6619 that they do not hold after the first thread unsets add_do_not_lock). 6620 [Bodo Moeller] 6621 6622 *) Change bctest again: '-x' expressions are not available in all 6623 versions of 'test'. 6624 [Bodo Moeller] 6625 6626 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6627 6628 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6629 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6630 6631 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6632 the default extension for executables, if any. Also, make the perl 6633 scripts that use symlink() to test if it really exists and use "cp" 6634 if it doesn't. All this made OpenSSL compilable and installable in 6635 CygWin. 6636 [Richard Levitte] 6637 6638 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6639 If SEQUENCE is length is indefinite just set c->slen to the total 6640 amount of data available. 6641 [Steve Henson, reported by shige@FreeBSD.org] 6642 [This change does not apply to 0.9.7.] 6643 6644 *) Change bctest to avoid here-documents inside command substitution 6645 (workaround for FreeBSD /bin/sh bug). 6646 For compatibility with Ultrix, avoid shell functions (introduced 6647 in the bctest version that searches along $PATH). 6648 [Bodo Moeller] 6649 6650 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6651 with des_encrypt() defined on some operating systems, like Solaris 6652 and UnixWare. 6653 [Richard Levitte] 6654 6655 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6656 On the Importance of Eliminating Errors in Cryptographic 6657 Computations, J. Cryptology 14 (2001) 2, 101-119, 6658 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6659 [Ulf Moeller] 6660 6661 *) MIPS assembler BIGNUM division bug fix. 6662 [Andy Polyakov] 6663 6664 *) Disabled incorrect Alpha assembler code. 6665 [Richard Levitte] 6666 6667 *) Fix PKCS#7 decode routines so they correctly update the length 6668 after reading an EOC for the EXPLICIT tag. 6669 [Steve Henson] 6670 [This change does not apply to 0.9.7.] 6671 6672 *) Fix bug in PKCS#12 key generation routines. This was triggered 6673 if a 3DES key was generated with a 0 initial byte. Include 6674 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6675 (but broken) behaviour. 6676 [Steve Henson] 6677 6678 *) Enhance bctest to search for a working bc along $PATH and print 6679 it when found. 6680 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6681 6682 *) Fix memory leaks in err.c: free err_data string if necessary; 6683 don't write to the wrong index in ERR_set_error_data. 6684 [Bodo Moeller] 6685 6686 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6687 did not exist. 6688 [Bodo Moeller] 6689 6690 *) Replace rdtsc with _emit statements for VC++ version 5. 6691 [Jeremy Cooper <jeremy@baymoo.org>] 6692 6693 *) Make it possible to reuse SSLv2 sessions. 6694 [Richard Levitte] 6695 6696 *) In copy_email() check for >= 0 as a return value for 6697 X509_NAME_get_index_by_NID() since 0 is a valid index. 6698 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6699 6700 *) Avoid coredump with unsupported or invalid public keys by checking if 6701 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6702 PKCS7_verify() fails with non detached data. 6703 [Steve Henson] 6704 6705 *) Don't use getenv in library functions when run as setuid/setgid. 6706 New function OPENSSL_issetugid(). 6707 [Ulf Moeller] 6708 6709 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6710 due to incorrect handling of multi-threading: 6711 6712 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6713 6714 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6715 6716 3. Count how many times MemCheck_off() has been called so that 6717 nested use can be treated correctly. This also avoids 6718 inband-signalling in the previous code (which relied on the 6719 assumption that thread ID 0 is impossible). 6720 [Bodo Moeller] 6721 6722 *) Add "-rand" option also to s_client and s_server. 6723 [Lutz Jaenicke] 6724 6725 *) Fix CPU detection on Irix 6.x. 6726 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6727 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6728 6729 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6730 was empty. 6731 [Steve Henson] 6732 [This change does not apply to 0.9.7.] 6733 6734 *) Use the cached encoding of an X509_NAME structure rather than 6735 copying it. This is apparently the reason for the libsafe "errors" 6736 but the code is actually correct. 6737 [Steve Henson] 6738 6739 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6740 Bleichenbacher's DSA attack. 6741 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6742 to be set and top=0 forces the highest bit to be set; top=-1 is new 6743 and leaves the highest bit random. 6744 [Ulf Moeller, Bodo Moeller] 6745 6746 *) In the NCONF_...-based implementations for CONF_... queries 6747 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6748 a temporary CONF structure with the data component set to NULL 6749 (which gives segmentation faults in lh_retrieve). 6750 Instead, use NULL for the CONF pointer in CONF_get_string and 6751 CONF_get_number (which may use environment variables) and directly 6752 return NULL from CONF_get_section. 6753 [Bodo Moeller] 6754 6755 *) Fix potential buffer overrun for EBCDIC. 6756 [Ulf Moeller] 6757 6758 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6759 keyUsage if basicConstraints absent for a CA. 6760 [Steve Henson] 6761 6762 *) Make SMIME_write_PKCS7() write mail header values with a format that 6763 is more generally accepted (no spaces before the semicolon), since 6764 some programs can't parse those values properly otherwise. Also make 6765 sure BIO's that break lines after each write do not create invalid 6766 headers. 6767 [Richard Levitte] 6768 6769 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6770 macros previously used would not encode an empty SEQUENCE OF 6771 and break the signature. 6772 [Steve Henson] 6773 [This change does not apply to 0.9.7.] 6774 6775 *) Zero the premaster secret after deriving the master secret in 6776 DH ciphersuites. 6777 [Steve Henson] 6778 6779 *) Add some EVP_add_digest_alias registrations (as found in 6780 OpenSSL_add_all_digests()) to SSL_library_init() 6781 aka OpenSSL_add_ssl_algorithms(). This provides improved 6782 compatibility with peers using X.509 certificates 6783 with unconventional AlgorithmIdentifier OIDs. 6784 [Bodo Moeller] 6785 6786 *) Fix for Irix with NO_ASM. 6787 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6788 6789 *) ./config script fixes. 6790 [Ulf Moeller, Richard Levitte] 6791 6792 *) Fix 'openssl passwd -1'. 6793 [Bodo Moeller] 6794 6795 *) Change PKCS12_key_gen_asc() so it can cope with non null 6796 terminated strings whose length is passed in the passlen 6797 parameter, for example from PEM callbacks. This was done 6798 by adding an extra length parameter to asc2uni(). 6799 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6800 6801 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6802 call failed, free the DSA structure. 6803 [Bodo Moeller] 6804 6805 *) Fix to uni2asc() to cope with zero length Unicode strings. 6806 These are present in some PKCS#12 files. 6807 [Steve Henson] 6808 6809 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6810 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6811 when writing a 32767 byte record. 6812 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6813 6814 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6815 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6816 6817 (RSA objects have a reference count access to which is protected 6818 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6819 so they are meant to be shared between threads.) 6820 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6821 "Reddie, Steven" <Steven.Reddie@ca.com>] 6822 6823 *) Fix a deadlock in CRYPTO_mem_leaks(). 6824 [Bodo Moeller] 6825 6826 *) Use better test patterns in bntest. 6827 [Ulf M�ller] 6828 6829 *) rand_win.c fix for Borland C. 6830 [Ulf M�ller] 6831 6832 *) BN_rshift bugfix for n == 0. 6833 [Bodo Moeller] 6834 6835 *) Add a 'bctest' script that checks for some known 'bc' bugs 6836 so that 'make test' does not abort just because 'bc' is broken. 6837 [Bodo Moeller] 6838 6839 *) Store verify_result within SSL_SESSION also for client side to 6840 avoid potential security hole. (Re-used sessions on the client side 6841 always resulted in verify_result==X509_V_OK, not using the original 6842 result of the server certificate verification.) 6843 [Lutz Jaenicke] 6844 6845 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6846 SSL3_RT_APPLICATION_DATA, return 0. 6847 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6848 [Bodo Moeller] 6849 6850 *) Fix SSL_peek: 6851 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6852 releases, have been re-implemented by renaming the previous 6853 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6854 and ssl3_read_internal, respectively, and adding 'peek' parameters 6855 to them. The new ssl[23]_{read,peek} functions are calls to 6856 ssl[23]_read_internal with the 'peek' flag set appropriately. 6857 A 'peek' parameter has also been added to ssl3_read_bytes, which 6858 does the actual work for ssl3_read_internal. 6859 [Bodo Moeller] 6860 6861 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6862 the method-specific "init()" handler. Also clean up ex_data after 6863 calling the method-specific "finish()" handler. Previously, this was 6864 happening the other way round. 6865 [Geoff Thorpe] 6866 6867 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6868 The previous value, 12, was not always sufficient for BN_mod_exp(). 6869 [Bodo Moeller] 6870 6871 *) Make sure that shared libraries get the internal name engine with 6872 the full version number and not just 0. This should mark the 6873 shared libraries as not backward compatible. Of course, this should 6874 be changed again when we can guarantee backward binary compatibility. 6875 [Richard Levitte] 6876 6877 *) Fix typo in get_cert_by_subject() in by_dir.c 6878 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6879 6880 *) Rework the system to generate shared libraries: 6881 6882 - Make note of the expected extension for the shared libraries and 6883 if there is a need for symbolic links from for example libcrypto.so.0 6884 to libcrypto.so.0.9.7. There is extended info in Configure for 6885 that. 6886 6887 - Make as few rebuilds of the shared libraries as possible. 6888 6889 - Still avoid linking the OpenSSL programs with the shared libraries. 6890 6891 - When installing, install the shared libraries separately from the 6892 static ones. 6893 [Richard Levitte] 6894 6895 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6896 6897 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6898 and not in SSL_clear because the latter is also used by the 6899 accept/connect functions; previously, the settings made by 6900 SSL_set_read_ahead would be lost during the handshake. 6901 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6902 6903 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6904 Previously, it would create entries for disableed algorithms no 6905 matter what. 6906 [Richard Levitte] 6907 6908 *) Added several new manual pages for SSL_* function. 6909 [Lutz Jaenicke] 6910 6911 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6912 6913 *) In ssl23_get_client_hello, generate an error message when faced 6914 with an initial SSL 3.0/TLS record that is too small to contain the 6915 first two bytes of the ClientHello message, i.e. client_version. 6916 (Note that this is a pathologic case that probably has never happened 6917 in real life.) The previous approach was to use the version number 6918 from the record header as a substitute; but our protocol choice 6919 should not depend on that one because it is not authenticated 6920 by the Finished messages. 6921 [Bodo Moeller] 6922 6923 *) More robust randomness gathering functions for Windows. 6924 [Jeffrey Altman <jaltman@columbia.edu>] 6925 6926 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6927 not set then we don't setup the error code for issuer check errors 6928 to avoid possibly overwriting other errors which the callback does 6929 handle. If an application does set the flag then we assume it knows 6930 what it is doing and can handle the new informational codes 6931 appropriately. 6932 [Steve Henson] 6933 6934 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6935 a general "ANY" type, as such it should be able to decode anything 6936 including tagged types. However it didn't check the class so it would 6937 wrongly interpret tagged types in the same way as their universal 6938 counterpart and unknown types were just rejected. Changed so that the 6939 tagged and unknown types are handled in the same way as a SEQUENCE: 6940 that is the encoding is stored intact. There is also a new type 6941 "V_ASN1_OTHER" which is used when the class is not universal, in this 6942 case we have no idea what the actual type is so we just lump them all 6943 together. 6944 [Steve Henson] 6945 6946 *) On VMS, stdout may very well lead to a file that is written to 6947 in a record-oriented fashion. That means that every write() will 6948 write a separate record, which will be read separately by the 6949 programs trying to read from it. This can be very confusing. 6950 6951 The solution is to put a BIO filter in the way that will buffer 6952 text until a linefeed is reached, and then write everything a 6953 line at a time, so every record written will be an actual line, 6954 not chunks of lines and not (usually doesn't happen, but I've 6955 seen it once) several lines in one record. BIO_f_linebuffer() is 6956 the answer. 6957 6958 Currently, it's a VMS-only method, because that's where it has 6959 been tested well enough. 6960 [Richard Levitte] 6961 6962 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6963 it can return incorrect results. 6964 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6965 but it was in 0.9.6-beta[12].) 6966 [Bodo Moeller] 6967 6968 *) Disable the check for content being present when verifying detached 6969 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6970 include zero length content when signing messages. 6971 [Steve Henson] 6972 6973 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6974 BIO_ctrl (for BIO pairs). 6975 [Bodo M�ller] 6976 6977 *) Add DSO method for VMS. 6978 [Richard Levitte] 6979 6980 *) Bug fix: Montgomery multiplication could produce results with the 6981 wrong sign. 6982 [Ulf M�ller] 6983 6984 *) Add RPM specification openssl.spec and modify it to build three 6985 packages. The default package contains applications, application 6986 documentation and run-time libraries. The devel package contains 6987 include files, static libraries and function documentation. The 6988 doc package contains the contents of the doc directory. The original 6989 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6990 [Richard Levitte] 6991 6992 *) Add a large number of documentation files for many SSL routines. 6993 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6994 6995 *) Add a configuration entry for Sony News 4. 6996 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6997 6998 *) Don't set the two most significant bits to one when generating a 6999 random number < q in the DSA library. 7000 [Ulf M�ller] 7001 7002 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 7003 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 7004 the underlying transport is blocking) if a handshake took place. 7005 (The default behaviour is needed by applications such as s_client 7006 and s_server that use select() to determine when to use SSL_read; 7007 but for applications that know in advance when to expect data, it 7008 just makes things more complicated.) 7009 [Bodo Moeller] 7010 7011 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 7012 from EGD. 7013 [Ben Laurie] 7014 7015 *) Add a few more EBCDIC conditionals that make `req' and `x509' 7016 work better on such systems. 7017 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 7018 7019 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 7020 Update PKCS12_parse() so it copies the friendlyName and the 7021 keyid to the certificates aux info. 7022 [Steve Henson] 7023 7024 *) Fix bug in PKCS7_verify() which caused an infinite loop 7025 if there was more than one signature. 7026 [Sven Uszpelkat <su@celocom.de>] 7027 7028 *) Major change in util/mkdef.pl to include extra information 7029 about each symbol, as well as presentig variables as well 7030 as functions. This change means that there's n more need 7031 to rebuild the .num files when some algorithms are excluded. 7032 [Richard Levitte] 7033 7034 *) Allow the verify time to be set by an application, 7035 rather than always using the current time. 7036 [Steve Henson] 7037 7038 *) Phase 2 verify code reorganisation. The certificate 7039 verify code now looks up an issuer certificate by a 7040 number of criteria: subject name, authority key id 7041 and key usage. It also verifies self signed certificates 7042 by the same criteria. The main comparison function is 7043 X509_check_issued() which performs these checks. 7044 7045 Lot of changes were necessary in order to support this 7046 without completely rewriting the lookup code. 7047 7048 Authority and subject key identifier are now cached. 7049 7050 The LHASH 'certs' is X509_STORE has now been replaced 7051 by a STACK_OF(X509_OBJECT). This is mainly because an 7052 LHASH can't store or retrieve multiple objects with 7053 the same hash value. 7054 7055 As a result various functions (which were all internal 7056 use only) have changed to handle the new X509_STORE 7057 structure. This will break anything that messed round 7058 with X509_STORE internally. 7059 7060 The functions X509_STORE_add_cert() now checks for an 7061 exact match, rather than just subject name. 7062 7063 The X509_STORE API doesn't directly support the retrieval 7064 of multiple certificates matching a given criteria, however 7065 this can be worked round by performing a lookup first 7066 (which will fill the cache with candidate certificates) 7067 and then examining the cache for matches. This is probably 7068 the best we can do without throwing out X509_LOOKUP 7069 entirely (maybe later...). 7070 7071 The X509_VERIFY_CTX structure has been enhanced considerably. 7072 7073 All certificate lookup operations now go via a get_issuer() 7074 callback. Although this currently uses an X509_STORE it 7075 can be replaced by custom lookups. This is a simple way 7076 to bypass the X509_STORE hackery necessary to make this 7077 work and makes it possible to use more efficient techniques 7078 in future. A very simple version which uses a simple 7079 STACK for its trusted certificate store is also provided 7080 using X509_STORE_CTX_trusted_stack(). 7081 7082 The verify_cb() and verify() callbacks now have equivalents 7083 in the X509_STORE_CTX structure. 7084 7085 X509_STORE_CTX also has a 'flags' field which can be used 7086 to customise the verify behaviour. 7087 [Steve Henson] 7088 7089 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 7090 excludes S/MIME capabilities. 7091 [Steve Henson] 7092 7093 *) When a certificate request is read in keep a copy of the 7094 original encoding of the signed data and use it when outputing 7095 again. Signatures then use the original encoding rather than 7096 a decoded, encoded version which may cause problems if the 7097 request is improperly encoded. 7098 [Steve Henson] 7099 7100 *) For consistency with other BIO_puts implementations, call 7101 buffer_write(b, ...) directly in buffer_puts instead of calling 7102 BIO_write(b, ...). 7103 7104 In BIO_puts, increment b->num_write as in BIO_write. 7105 [Peter.Sylvester@EdelWeb.fr] 7106 7107 *) Fix BN_mul_word for the case where the word is 0. (We have to use 7108 BN_zero, we may not return a BIGNUM with an array consisting of 7109 words set to zero.) 7110 [Bodo Moeller] 7111 7112 *) Avoid calling abort() from within the library when problems are 7113 detected, except if preprocessor symbols have been defined 7114 (such as REF_CHECK, BN_DEBUG etc.). 7115 [Bodo Moeller] 7116 7117 *) New openssl application 'rsautl'. This utility can be 7118 used for low level RSA operations. DER public key 7119 BIO/fp routines also added. 7120 [Steve Henson] 7121 7122 *) New Configure entry and patches for compiling on QNX 4. 7123 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 7124 7125 *) A demo state-machine implementation was sponsored by 7126 Nuron (http://www.nuron.com/) and is now available in 7127 demos/state_machine. 7128 [Ben Laurie] 7129 7130 *) New options added to the 'dgst' utility for signature 7131 generation and verification. 7132 [Steve Henson] 7133 7134 *) Unrecognized PKCS#7 content types are now handled via a 7135 catch all ASN1_TYPE structure. This allows unsupported 7136 types to be stored as a "blob" and an application can 7137 encode and decode it manually. 7138 [Steve Henson] 7139 7140 *) Fix various signed/unsigned issues to make a_strex.c 7141 compile under VC++. 7142 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 7143 7144 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 7145 length if passed a buffer. ASN1_INTEGER_to_BN failed 7146 if passed a NULL BN and its argument was negative. 7147 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 7148 7149 *) Modification to PKCS#7 encoding routines to output definite 7150 length encoding. Since currently the whole structures are in 7151 memory there's not real point in using indefinite length 7152 constructed encoding. However if OpenSSL is compiled with 7153 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 7154 [Steve Henson] 7155 7156 *) Added BIO_vprintf() and BIO_vsnprintf(). 7157 [Richard Levitte] 7158 7159 *) Added more prefixes to parse for in the the strings written 7160 through a logging bio, to cover all the levels that are available 7161 through syslog. The prefixes are now: 7162 7163 PANIC, EMERG, EMR => LOG_EMERG 7164 ALERT, ALR => LOG_ALERT 7165 CRIT, CRI => LOG_CRIT 7166 ERROR, ERR => LOG_ERR 7167 WARNING, WARN, WAR => LOG_WARNING 7168 NOTICE, NOTE, NOT => LOG_NOTICE 7169 INFO, INF => LOG_INFO 7170 DEBUG, DBG => LOG_DEBUG 7171 7172 and as before, if none of those prefixes are present at the 7173 beginning of the string, LOG_ERR is chosen. 7174 7175 On Win32, the LOG_* levels are mapped according to this: 7176 7177 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7178 LOG_WARNING => EVENTLOG_WARNING_TYPE 7179 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7180 7181 [Richard Levitte] 7182 7183 *) Made it possible to reconfigure with just the configuration 7184 argument "reconf" or "reconfigure". The command line arguments 7185 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7186 and are retrieved from there when reconfiguring. 7187 [Richard Levitte] 7188 7189 *) MD4 implemented. 7190 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7191 7192 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7193 [Richard Levitte] 7194 7195 *) The obj_dat.pl script was messing up the sorting of object 7196 names. The reason was that it compared the quoted version 7197 of strings as a result "OCSP" > "OCSP Signing" because 7198 " > SPACE. Changed script to store unquoted versions of 7199 names and add quotes on output. It was also omitting some 7200 names from the lookup table if they were given a default 7201 value (that is if SN is missing it is given the same 7202 value as LN and vice versa), these are now added on the 7203 grounds that if an object has a name we should be able to 7204 look it up. Finally added warning output when duplicate 7205 short or long names are found. 7206 [Steve Henson] 7207 7208 *) Changes needed for Tandem NSK. 7209 [Scott Uroff <scott@xypro.com>] 7210 7211 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7212 RSA_padding_check_SSLv23(), special padding was never detected 7213 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7214 version rollback attacks was not effective. 7215 7216 In s23_clnt.c, don't use special rollback-attack detection padding 7217 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7218 client; similarly, in s23_srvr.c, don't do the rollback check if 7219 SSL 2.0 is the only protocol enabled in the server. 7220 [Bodo Moeller] 7221 7222 *) Make it possible to get hexdumps of unprintable data with 'openssl 7223 asn1parse'. By implication, the functions ASN1_parse_dump() and 7224 BIO_dump_indent() are added. 7225 [Richard Levitte] 7226 7227 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7228 these print out strings and name structures based on various 7229 flags including RFC2253 support and proper handling of 7230 multibyte characters. Added options to the 'x509' utility 7231 to allow the various flags to be set. 7232 [Steve Henson] 7233 7234 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7235 Also change the functions X509_cmp_current_time() and 7236 X509_gmtime_adj() work with an ASN1_TIME structure, 7237 this will enable certificates using GeneralizedTime in validity 7238 dates to be checked. 7239 [Steve Henson] 7240 7241 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7242 negative public key encodings) on by default, 7243 NO_NEG_PUBKEY_BUG can be set to disable it. 7244 [Steve Henson] 7245 7246 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7247 content octets. An i2c_ASN1_OBJECT is unnecessary because 7248 the encoding can be trivially obtained from the structure. 7249 [Steve Henson] 7250 7251 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7252 not read locks (CRYPTO_r_[un]lock). 7253 [Bodo Moeller] 7254 7255 *) A first attempt at creating official support for shared 7256 libraries through configuration. I've kept it so the 7257 default is static libraries only, and the OpenSSL programs 7258 are always statically linked for now, but there are 7259 preparations for dynamic linking in place. 7260 This has been tested on Linux and Tru64. 7261 [Richard Levitte] 7262 7263 *) Randomness polling function for Win9x, as described in: 7264 Peter Gutmann, Software Generation of Practically Strong 7265 Random Numbers. 7266 [Ulf M�ller] 7267 7268 *) Fix so PRNG is seeded in req if using an already existing 7269 DSA key. 7270 [Steve Henson] 7271 7272 *) New options to smime application. -inform and -outform 7273 allow alternative formats for the S/MIME message including 7274 PEM and DER. The -content option allows the content to be 7275 specified separately. This should allow things like Netscape 7276 form signing output easier to verify. 7277 [Steve Henson] 7278 7279 *) Fix the ASN1 encoding of tags using the 'long form'. 7280 [Steve Henson] 7281 7282 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7283 STRING types. These convert content octets to and from the 7284 underlying type. The actual tag and length octets are 7285 already assumed to have been read in and checked. These 7286 are needed because all other string types have virtually 7287 identical handling apart from the tag. By having versions 7288 of the ASN1 functions that just operate on content octets 7289 IMPLICIT tagging can be handled properly. It also allows 7290 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7291 and ASN1_INTEGER are identical apart from the tag. 7292 [Steve Henson] 7293 7294 *) Change the handling of OID objects as follows: 7295 7296 - New object identifiers are inserted in objects.txt, following 7297 the syntax given in objects.README. 7298 - objects.pl is used to process obj_mac.num and create a new 7299 obj_mac.h. 7300 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7301 obj_mac.h. 7302 7303 This is currently kind of a hack, and the perl code in objects.pl 7304 isn't very elegant, but it works as I intended. The simplest way 7305 to check that it worked correctly is to look in obj_dat.h and 7306 check the array nid_objs and make sure the objects haven't moved 7307 around (this is important!). Additions are OK, as well as 7308 consistent name changes. 7309 [Richard Levitte] 7310 7311 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7312 [Bodo Moeller] 7313 7314 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7315 The given file adds to whatever has already been seeded into the 7316 random pool through the RANDFILE configuration file option or 7317 environment variable, or the default random state file. 7318 [Richard Levitte] 7319 7320 *) mkstack.pl now sorts each macro group into lexical order. 7321 Previously the output order depended on the order the files 7322 appeared in the directory, resulting in needless rewriting 7323 of safestack.h . 7324 [Steve Henson] 7325 7326 *) Patches to make OpenSSL compile under Win32 again. Mostly 7327 work arounds for the VC++ problem that it treats func() as 7328 func(void). Also stripped out the parts of mkdef.pl that 7329 added extra typesafe functions: these no longer exist. 7330 [Steve Henson] 7331 7332 *) Reorganisation of the stack code. The macros are now all 7333 collected in safestack.h . Each macro is defined in terms of 7334 a "stack macro" of the form SKM_<name>(type, a, b). The 7335 DEBUG_SAFESTACK is now handled in terms of function casts, 7336 this has the advantage of retaining type safety without the 7337 use of additional functions. If DEBUG_SAFESTACK is not defined 7338 then the non typesafe macros are used instead. Also modified the 7339 mkstack.pl script to handle the new form. Needs testing to see 7340 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7341 the default if no major problems. Similar behaviour for ASN1_SET_OF 7342 and PKCS12_STACK_OF. 7343 [Steve Henson] 7344 7345 *) When some versions of IIS use the 'NET' form of private key the 7346 key derivation algorithm is different. Normally MD5(password) is 7347 used as a 128 bit RC4 key. In the modified case 7348 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7349 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7350 as the old Netscape_RSA functions except they have an additional 7351 'sgckey' parameter which uses the modified algorithm. Also added 7352 an -sgckey command line option to the rsa utility. Thanks to 7353 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7354 algorithm to openssl-dev. 7355 [Steve Henson] 7356 7357 *) The evp_local.h macros were using 'c.##kname' which resulted in 7358 invalid expansion on some systems (SCO 5.0.5 for example). 7359 Corrected to 'c.kname'. 7360 [Phillip Porch <root@theporch.com>] 7361 7362 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7363 a STACK of email addresses from a certificate or request, these look 7364 in the subject name and the subject alternative name extensions and 7365 omit any duplicate addresses. 7366 [Steve Henson] 7367 7368 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7369 This makes DSA verification about 2 % faster. 7370 [Bodo Moeller] 7371 7372 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7373 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7374 plus overhead for 1024 bit moduli). 7375 This makes exponentiations about 0.5 % faster for 1024 bit 7376 exponents (as measured by "openssl speed rsa2048"). 7377 [Bodo Moeller] 7378 7379 *) Rename memory handling macros to avoid conflicts with other 7380 software: 7381 Malloc => OPENSSL_malloc 7382 Malloc_locked => OPENSSL_malloc_locked 7383 Realloc => OPENSSL_realloc 7384 Free => OPENSSL_free 7385 [Richard Levitte] 7386 7387 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7388 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7389 [Bodo Moeller] 7390 7391 *) CygWin32 support. 7392 [John Jarvie <jjarvie@newsguy.com>] 7393 7394 *) The type-safe stack code has been rejigged. It is now only compiled 7395 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7396 by default all type-specific stack functions are "#define"d back to 7397 standard stack functions. This results in more streamlined output 7398 but retains the type-safety checking possibilities of the original 7399 approach. 7400 [Geoff Thorpe] 7401 7402 *) The STACK code has been cleaned up, and certain type declarations 7403 that didn't make a lot of sense have been brought in line. This has 7404 also involved a cleanup of sorts in safestack.h to more correctly 7405 map type-safe stack functions onto their plain stack counterparts. 7406 This work has also resulted in a variety of "const"ifications of 7407 lots of the code, especially "_cmp" operations which should normally 7408 be prototyped with "const" parameters anyway. 7409 [Geoff Thorpe] 7410 7411 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7412 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7413 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7414 where all of 'md' is used each time the PRNG is used, but 'state' 7415 is used only indexed by a cyclic counter. As entropy may not be 7416 well distributed from the beginning, 'md' is important as a 7417 chaining variable. However, the output function chains only half 7418 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7419 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7420 in all of 'state' being rewritten, with the new values depending 7421 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7422 [Bodo Moeller] 7423 7424 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7425 the handshake is continued after ssl_verify_cert_chain(); 7426 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7427 can lead to 'unexplainable' connection aborts later. 7428 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7429 7430 *) Major EVP API cipher revision. 7431 Add hooks for extra EVP features. This allows various cipher 7432 parameters to be set in the EVP interface. Support added for variable 7433 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7434 setting of RC2 and RC5 parameters. 7435 7436 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7437 ciphers. 7438 7439 Remove lots of duplicated code from the EVP library. For example *every* 7440 cipher init() function handles the 'iv' in the same way according to the 7441 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7442 for CFB and OFB modes they zero ctx->num. 7443 7444 New functionality allows removal of S/MIME code RC2 hack. 7445 7446 Most of the routines have the same form and so can be declared in terms 7447 of macros. 7448 7449 By shifting this to the top level EVP_CipherInit() it can be removed from 7450 all individual ciphers. If the cipher wants to handle IVs or keys 7451 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7452 flags. 7453 7454 Change lots of functions like EVP_EncryptUpdate() to now return a 7455 value: although software versions of the algorithms cannot fail 7456 any installed hardware versions can. 7457 [Steve Henson] 7458 7459 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7460 this option is set, tolerate broken clients that send the negotiated 7461 protocol version number instead of the requested protocol version 7462 number. 7463 [Bodo Moeller] 7464 7465 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7466 i.e. non-zero for export ciphersuites, zero otherwise. 7467 Previous versions had this flag inverted, inconsistent with 7468 rsa_tmp_cb (..._TMP_RSA_CB). 7469 [Bodo Moeller; problem reported by Amit Chopra] 7470 7471 *) Add missing DSA library text string. Work around for some IIS 7472 key files with invalid SEQUENCE encoding. 7473 [Steve Henson] 7474 7475 *) Add a document (doc/standards.txt) that list all kinds of standards 7476 and so on that are implemented in OpenSSL. 7477 [Richard Levitte] 7478 7479 *) Enhance c_rehash script. Old version would mishandle certificates 7480 with the same subject name hash and wouldn't handle CRLs at all. 7481 Added -fingerprint option to crl utility, to support new c_rehash 7482 features. 7483 [Steve Henson] 7484 7485 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7486 [Ulf M�ller] 7487 7488 *) Fix for SSL server purpose checking. Server checking was 7489 rejecting certificates which had extended key usage present 7490 but no ssl client purpose. 7491 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7492 7493 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7494 is a little unclear about how a blank password is handled. 7495 Since the password in encoded as a BMPString with terminating 7496 double NULL a zero length password would end up as just the 7497 double NULL. However no password at all is different and is 7498 handled differently in the PKCS#12 key generation code. NS 7499 treats a blank password as zero length. MSIE treats it as no 7500 password on export: but it will try both on import. We now do 7501 the same: PKCS12_parse() tries zero length and no password if 7502 the password is set to "" or NULL (NULL is now a valid password: 7503 it wasn't before) as does the pkcs12 application. 7504 [Steve Henson] 7505 7506 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7507 perror when PEM_read_bio_X509_REQ fails, the error message must 7508 be obtained from the error queue. 7509 [Bodo Moeller] 7510 7511 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7512 it in ERR_remove_state if appropriate, and change ERR_get_state 7513 accordingly to avoid race conditions (this is necessary because 7514 thread_hash is no longer constant once set). 7515 [Bodo Moeller] 7516 7517 *) Bugfix for linux-elf makefile.one. 7518 [Ulf M�ller] 7519 7520 *) RSA_get_default_method() will now cause a default 7521 RSA_METHOD to be chosen if one doesn't exist already. 7522 Previously this was only set during a call to RSA_new() 7523 or RSA_new_method(NULL) meaning it was possible for 7524 RSA_get_default_method() to return NULL. 7525 [Geoff Thorpe] 7526 7527 *) Added native name translation to the existing DSO code 7528 that will convert (if the flag to do so is set) filenames 7529 that are sufficiently small and have no path information 7530 into a canonical native form. Eg. "blah" converted to 7531 "libblah.so" or "blah.dll" etc. 7532 [Geoff Thorpe] 7533 7534 *) New function ERR_error_string_n(e, buf, len) which is like 7535 ERR_error_string(e, buf), but writes at most 'len' bytes 7536 including the 0 terminator. For ERR_error_string_n, 'buf' 7537 may not be NULL. 7538 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7539 7540 *) CONF library reworked to become more general. A new CONF 7541 configuration file reader "class" is implemented as well as a 7542 new functions (NCONF_*, for "New CONF") to handle it. The now 7543 old CONF_* functions are still there, but are reimplemented to 7544 work in terms of the new functions. Also, a set of functions 7545 to handle the internal storage of the configuration data is 7546 provided to make it easier to write new configuration file 7547 reader "classes" (I can definitely see something reading a 7548 configuration file in XML format, for example), called _CONF_*, 7549 or "the configuration storage API"... 7550 7551 The new configuration file reading functions are: 7552 7553 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7554 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7555 7556 NCONF_default, NCONF_WIN32 7557 7558 NCONF_dump_fp, NCONF_dump_bio 7559 7560 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7561 NCONF_new creates a new CONF object. This works in the same way 7562 as other interfaces in OpenSSL, like the BIO interface. 7563 NCONF_dump_* dump the internal storage of the configuration file, 7564 which is useful for debugging. All other functions take the same 7565 arguments as the old CONF_* functions wth the exception of the 7566 first that must be a `CONF *' instead of a `LHASH *'. 7567 7568 To make it easer to use the new classes with the old CONF_* functions, 7569 the function CONF_set_default_method is provided. 7570 [Richard Levitte] 7571 7572 *) Add '-tls1' option to 'openssl ciphers', which was already 7573 mentioned in the documentation but had not been implemented. 7574 (This option is not yet really useful because even the additional 7575 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7576 [Bodo Moeller] 7577 7578 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7579 OpenSSL-based applications) load shared libraries and bind to 7580 them in a portable way. 7581 [Geoff Thorpe, with contributions from Richard Levitte] 7582 7583 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7584 7585 *) Make sure _lrotl and _lrotr are only used with MSVC. 7586 7587 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7588 (the default implementation of RAND_status). 7589 7590 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7591 to '-clrext' (= clear extensions), as intended and documented. 7592 [Bodo Moeller; inconsistency pointed out by Michael Attili 7593 <attili@amaxo.com>] 7594 7595 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7596 was larger than the MD block size. 7597 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7598 7599 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7600 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7601 using the passed key: if the passed key was a private key the result 7602 of X509_print(), for example, would be to print out all the private key 7603 components. 7604 [Steve Henson] 7605 7606 *) des_quad_cksum() byte order bug fix. 7607 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7608 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7609 7610 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7611 discouraged. 7612 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7613 7614 *) For easily testing in shell scripts whether some command 7615 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7616 returns with exit code 0 iff no command of the given name is available. 7617 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7618 the output goes to stdout and nothing is printed to stderr. 7619 Additional arguments are always ignored. 7620 7621 Since for each cipher there is a command of the same name, 7622 the 'no-cipher' compilation switches can be tested this way. 7623 7624 ('openssl no-XXX' is not able to detect pseudo-commands such 7625 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7626 [Bodo Moeller] 7627 7628 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7629 [Bodo Moeller] 7630 7631 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7632 is set; it will be thrown away anyway because each handshake creates 7633 its own key. 7634 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7635 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7636 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7637 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7638 [Bodo Moeller] 7639 7640 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7641 'Q' and 'R' lose their special meanings (quit/renegotiate). 7642 This is part of what -quiet does; unlike -quiet, -ign_eof 7643 does not suppress any output. 7644 [Richard Levitte] 7645 7646 *) Add compatibility options to the purpose and trust code. The 7647 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7648 accepts a certificate or CA, this was the previous behaviour, 7649 with all the associated security issues. 7650 7651 X509_TRUST_COMPAT is the old trust behaviour: only and 7652 automatically trust self signed roots in certificate store. A 7653 new trust setting X509_TRUST_DEFAULT is used to specify that 7654 a purpose has no associated trust setting and it should instead 7655 use the value in the default purpose. 7656 [Steve Henson] 7657 7658 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7659 and fix a memory leak. 7660 [Steve Henson] 7661 7662 *) In util/mkerr.pl (which implements 'make errors'), preserve 7663 reason strings from the previous version of the .c file, as 7664 the default to have only downcase letters (and digits) in 7665 automatically generated reasons codes is not always appropriate. 7666 [Bodo Moeller] 7667 7668 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7669 using strerror. Previously, ERR_reason_error_string() returned 7670 library names as reason strings for SYSerr; but SYSerr is a special 7671 case where small numbers are errno values, not library numbers. 7672 [Bodo Moeller] 7673 7674 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7675 converts DSA parameters into DH parameters. (When creating parameters, 7676 DSA_generate_parameters is used.) 7677 [Bodo Moeller] 7678 7679 *) Include 'length' (recommended exponent length) in C code generated 7680 by 'openssl dhparam -C'. 7681 [Bodo Moeller] 7682 7683 *) The second argument to set_label in perlasm was already being used 7684 so couldn't be used as a "file scope" flag. Moved to third argument 7685 which was free. 7686 [Steve Henson] 7687 7688 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7689 instead of RAND_bytes for encryption IVs and salts. 7690 [Bodo Moeller] 7691 7692 *) Include RAND_status() into RAND_METHOD instead of implementing 7693 it only for md_rand.c Otherwise replacing the PRNG by calling 7694 RAND_set_rand_method would be impossible. 7695 [Bodo Moeller] 7696 7697 *) Don't let DSA_generate_key() enter an infinite loop if the random 7698 number generation fails. 7699 [Bodo Moeller] 7700 7701 *) New 'rand' application for creating pseudo-random output. 7702 [Bodo Moeller] 7703 7704 *) Added configuration support for Linux/IA64 7705 [Rolf Haberrecker <rolf@suse.de>] 7706 7707 *) Assembler module support for Mingw32. 7708 [Ulf M�ller] 7709 7710 *) Shared library support for HPUX (in shlib/). 7711 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7712 7713 *) Shared library support for Solaris gcc. 7714 [Lutz Behnke <behnke@trustcenter.de>] 7715 7716 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7717 7718 *) PKCS7_encrypt() was adding text MIME headers twice because they 7719 were added manually and by SMIME_crlf_copy(). 7720 [Steve Henson] 7721 7722 *) In bntest.c don't call BN_rand with zero bits argument. 7723 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7724 7725 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7726 case was implemented. This caused BN_div_recp() to fail occasionally. 7727 [Ulf M�ller] 7728 7729 *) Add an optional second argument to the set_label() in the perl 7730 assembly language builder. If this argument exists and is set 7731 to 1 it signals that the assembler should use a symbol whose 7732 scope is the entire file, not just the current function. This 7733 is needed with MASM which uses the format label:: for this scope. 7734 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7735 7736 *) Change the ASN1 types so they are typedefs by default. Before 7737 almost all types were #define'd to ASN1_STRING which was causing 7738 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7739 for example. 7740 [Steve Henson] 7741 7742 *) Change names of new functions to the new get1/get0 naming 7743 convention: After 'get1', the caller owns a reference count 7744 and has to call ..._free; 'get0' returns a pointer to some 7745 data structure without incrementing reference counters. 7746 (Some of the existing 'get' functions increment a reference 7747 counter, some don't.) 7748 Similarly, 'set1' and 'add1' functions increase reference 7749 counters or duplicate objects. 7750 [Steve Henson] 7751 7752 *) Allow for the possibility of temp RSA key generation failure: 7753 the code used to assume it always worked and crashed on failure. 7754 [Steve Henson] 7755 7756 *) Fix potential buffer overrun problem in BIO_printf(). 7757 [Ulf M�ller, using public domain code by Patrick Powell; problem 7758 pointed out by David Sacerdote <das33@cornell.edu>] 7759 7760 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7761 RAND_egd() and RAND_status(). In the command line application, 7762 the EGD socket can be specified like a seed file using RANDFILE 7763 or -rand. 7764 [Ulf M�ller] 7765 7766 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7767 Some CAs (e.g. Verisign) distribute certificates in this form. 7768 [Steve Henson] 7769 7770 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7771 list to exclude them. This means that no special compilation option 7772 is needed to use anonymous DH: it just needs to be included in the 7773 cipher list. 7774 [Steve Henson] 7775 7776 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7777 EVP_MD_type. The old functionality is available in a new macro called 7778 EVP_MD_md(). Change code that uses it and update docs. 7779 [Steve Henson] 7780 7781 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7782 where the 'void *' argument is replaced by a function pointer argument. 7783 Previously 'void *' was abused to point to functions, which works on 7784 many platforms, but is not correct. As these functions are usually 7785 called by macros defined in OpenSSL header files, most source code 7786 should work without changes. 7787 [Richard Levitte] 7788 7789 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7790 sections with information on -D... compiler switches used for 7791 compiling the library so that applications can see them. To enable 7792 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7793 must be defined. E.g., 7794 #define OPENSSL_ALGORITHM_DEFINES 7795 #include <openssl/opensslconf.h> 7796 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7797 [Richard Levitte, Ulf and Bodo M�ller] 7798 7799 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7800 record layer. 7801 [Bodo Moeller] 7802 7803 *) Change the 'other' type in certificate aux info to a STACK_OF 7804 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7805 the required ASN1 format: arbitrary types determined by an OID. 7806 [Steve Henson] 7807 7808 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7809 argument to 'req'. This is not because the function is newer or 7810 better than others it just uses the work 'NEW' in the certificate 7811 request header lines. Some software needs this. 7812 [Steve Henson] 7813 7814 *) Reorganise password command line arguments: now passwords can be 7815 obtained from various sources. Delete the PEM_cb function and make 7816 it the default behaviour: i.e. if the callback is NULL and the 7817 usrdata argument is not NULL interpret it as a null terminated pass 7818 phrase. If usrdata and the callback are NULL then the pass phrase 7819 is prompted for as usual. 7820 [Steve Henson] 7821 7822 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7823 the support is automatically enabled. The resulting binaries will 7824 autodetect the card and use it if present. 7825 [Ben Laurie and Compaq Inc.] 7826 7827 *) Work around for Netscape hang bug. This sends certificate request 7828 and server done in one record. Since this is perfectly legal in the 7829 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7830 the bugs/SSLv3 entry for more info. 7831 [Steve Henson] 7832 7833 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7834 [Andy Polyakov] 7835 7836 *) Add -rand argument to smime and pkcs12 applications and read/write 7837 of seed file. 7838 [Steve Henson] 7839 7840 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7841 [Bodo Moeller] 7842 7843 *) Add command line password options to the remaining applications. 7844 [Steve Henson] 7845 7846 *) Bug fix for BN_div_recp() for numerators with an even number of 7847 bits. 7848 [Ulf M�ller] 7849 7850 *) More tests in bntest.c, and changed test_bn output. 7851 [Ulf M�ller] 7852 7853 *) ./config recognizes MacOS X now. 7854 [Andy Polyakov] 7855 7856 *) Bug fix for BN_div() when the first words of num and divsor are 7857 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7858 [Ulf M�ller] 7859 7860 *) Add support for various broken PKCS#8 formats, and command line 7861 options to produce them. 7862 [Steve Henson] 7863 7864 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7865 get temporary BIGNUMs from a BN_CTX. 7866 [Ulf M�ller] 7867 7868 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7869 for p == 0. 7870 [Ulf M�ller] 7871 7872 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7873 include a #define from the old name to the new. The original intent 7874 was that statically linked binaries could for example just call 7875 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7876 link with digests. This never worked becayse SSLeay_add_all_digests() 7877 and SSLeay_add_all_ciphers() were in the same source file so calling 7878 one would link with the other. They are now in separate source files. 7879 [Steve Henson] 7880 7881 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7882 [Steve Henson] 7883 7884 *) Use a less unusual form of the Miller-Rabin primality test (it used 7885 a binary algorithm for exponentiation integrated into the Miller-Rabin 7886 loop, our standard modexp algorithms are faster). 7887 [Bodo Moeller] 7888 7889 *) Support for the EBCDIC character set completed. 7890 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7891 7892 *) Source code cleanups: use const where appropriate, eliminate casts, 7893 use void * instead of char * in lhash. 7894 [Ulf M�ller] 7895 7896 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7897 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7898 this the server could overwrite ephemeral keys that the client 7899 has already seen). 7900 [Bodo Moeller] 7901 7902 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7903 using 50 iterations of the Rabin-Miller test. 7904 7905 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7906 iterations of the Rabin-Miller test as required by the appendix 7907 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7908 As BN_is_prime_fasttest includes trial division, DSA parameter 7909 generation becomes much faster. 7910 7911 This implies a change for the callback functions in DSA_is_prime 7912 and DSA_generate_parameters: The callback function is called once 7913 for each positive witness in the Rabin-Miller test, not just 7914 occasionally in the inner loop; and the parameters to the 7915 callback function now provide an iteration count for the outer 7916 loop rather than for the current invocation of the inner loop. 7917 DSA_generate_parameters additionally can call the callback 7918 function with an 'iteration count' of -1, meaning that a 7919 candidate has passed the trial division test (when q is generated 7920 from an application-provided seed, trial division is skipped). 7921 [Bodo Moeller] 7922 7923 *) New function BN_is_prime_fasttest that optionally does trial 7924 division before starting the Rabin-Miller test and has 7925 an additional BN_CTX * argument (whereas BN_is_prime always 7926 has to allocate at least one BN_CTX). 7927 'callback(1, -1, cb_arg)' is called when a number has passed the 7928 trial division stage. 7929 [Bodo Moeller] 7930 7931 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7932 as ASN1_TIME. 7933 [Steve Henson] 7934 7935 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7936 [Steve Henson] 7937 7938 *) New function BN_pseudo_rand(). 7939 [Ulf M�ller] 7940 7941 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7942 bignum version of BN_from_montgomery() with the working code from 7943 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7944 the comments. 7945 [Ulf M�ller] 7946 7947 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7948 made it impossible to use the same SSL_SESSION data structure in 7949 SSL2 clients in multiple threads. 7950 [Bodo Moeller] 7951 7952 *) The return value of RAND_load_file() no longer counts bytes obtained 7953 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7954 to seed the PRNG (previously an explicit byte count was required). 7955 [Ulf M�ller, Bodo M�ller] 7956 7957 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7958 used (char *) instead of (void *) and had casts all over the place. 7959 [Steve Henson] 7960 7961 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7962 [Ulf M�ller] 7963 7964 *) Retain source code compatibility for BN_prime_checks macro: 7965 BN_is_prime(..., BN_prime_checks, ...) now uses 7966 BN_prime_checks_for_size to determine the appropriate number of 7967 Rabin-Miller iterations. 7968 [Ulf M�ller] 7969 7970 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7971 DH_CHECK_P_NOT_SAFE_PRIME. 7972 (Check if this is true? OpenPGP calls them "strong".) 7973 [Ulf M�ller] 7974 7975 *) Merge the functionality of "dh" and "gendh" programs into a new program 7976 "dhparam". The old programs are retained for now but will handle DH keys 7977 (instead of parameters) in future. 7978 [Steve Henson] 7979 7980 *) Make the ciphers, s_server and s_client programs check the return values 7981 when a new cipher list is set. 7982 [Steve Henson] 7983 7984 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7985 ciphers. Before when the 56bit ciphers were enabled the sorting was 7986 wrong. 7987 7988 The syntax for the cipher sorting has been extended to support sorting by 7989 cipher-strength (using the strength_bits hard coded in the tables). 7990 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7991 7992 Fix a bug in the cipher-command parser: when supplying a cipher command 7993 string with an "undefined" symbol (neither command nor alphanumeric 7994 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7995 an error is flagged. 7996 7997 Due to the strength-sorting extension, the code of the 7998 ssl_create_cipher_list() function was completely rearranged. I hope that 7999 the readability was also increased :-) 8000 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 8001 8002 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 8003 for the first serial number and places 2 in the serial number file. This 8004 avoids problems when the root CA is created with serial number zero and 8005 the first user certificate has the same issuer name and serial number 8006 as the root CA. 8007 [Steve Henson] 8008 8009 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 8010 the new code. Add documentation for this stuff. 8011 [Steve Henson] 8012 8013 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 8014 X509_*() to X509at_*() on the grounds that they don't handle X509 8015 structures and behave in an analagous way to the X509v3 functions: 8016 they shouldn't be called directly but wrapper functions should be used 8017 instead. 8018 8019 So we also now have some wrapper functions that call the X509at functions 8020 when passed certificate requests. (TO DO: similar things can be done with 8021 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 8022 things. Some of these need some d2i or i2d and print functionality 8023 because they handle more complex structures.) 8024 [Steve Henson] 8025 8026 *) Add missing #ifndefs that caused missing symbols when building libssl 8027 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 8028 NO_RSA in ssl/s2*.c. 8029 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 8030 8031 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 8032 has a return value which indicates the quality of the random data 8033 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 8034 error queue. New function RAND_pseudo_bytes() generates output that is 8035 guaranteed to be unique but not unpredictable. RAND_add is like 8036 RAND_seed, but takes an extra argument for an entropy estimate 8037 (RAND_seed always assumes full entropy). 8038 [Ulf M�ller] 8039 8040 *) Do more iterations of Rabin-Miller probable prime test (specifically, 8041 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 8042 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 8043 in crypto/bn/bn_prime.c for the complete table). This guarantees a 8044 false-positive rate of at most 2^-80 for random input. 8045 [Bodo Moeller] 8046 8047 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 8048 [Bodo Moeller] 8049 8050 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 8051 in the 0.9.5 release), this returns the chain 8052 from an X509_CTX structure with a dup of the stack and all 8053 the X509 reference counts upped: so the stack will exist 8054 after X509_CTX_cleanup() has been called. Modify pkcs12.c 8055 to use this. 8056 8057 Also make SSL_SESSION_print() print out the verify return 8058 code. 8059 [Steve Henson] 8060 8061 *) Add manpage for the pkcs12 command. Also change the default 8062 behaviour so MAC iteration counts are used unless the new 8063 -nomaciter option is used. This improves file security and 8064 only older versions of MSIE (4.0 for example) need it. 8065 [Steve Henson] 8066 8067 *) Honor the no-xxx Configure options when creating .DEF files. 8068 [Ulf M�ller] 8069 8070 *) Add PKCS#10 attributes to field table: challengePassword, 8071 unstructuredName and unstructuredAddress. These are taken from 8072 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 8073 international characters are used. 8074 8075 More changes to X509_ATTRIBUTE code: allow the setting of types 8076 based on strings. Remove the 'loc' parameter when adding 8077 attributes because these will be a SET OF encoding which is sorted 8078 in ASN1 order. 8079 [Steve Henson] 8080 8081 *) Initial changes to the 'req' utility to allow request generation 8082 automation. This will allow an application to just generate a template 8083 file containing all the field values and have req construct the 8084 request. 8085 8086 Initial support for X509_ATTRIBUTE handling. Stacks of these are 8087 used all over the place including certificate requests and PKCS#7 8088 structures. They are currently handled manually where necessary with 8089 some primitive wrappers for PKCS#7. The new functions behave in a 8090 manner analogous to the X509 extension functions: they allow 8091 attributes to be looked up by NID and added. 8092 8093 Later something similar to the X509V3 code would be desirable to 8094 automatically handle the encoding, decoding and printing of the 8095 more complex types. The string types like challengePassword can 8096 be handled by the string table functions. 8097 8098 Also modified the multi byte string table handling. Now there is 8099 a 'global mask' which masks out certain types. The table itself 8100 can use the flag STABLE_NO_MASK to ignore the mask setting: this 8101 is useful when for example there is only one permissible type 8102 (as in countryName) and using the mask might result in no valid 8103 types at all. 8104 [Steve Henson] 8105 8106 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 8107 SSL_get_peer_finished to allow applications to obtain the latest 8108 Finished messages sent to the peer or expected from the peer, 8109 respectively. (SSL_get_peer_finished is usually the Finished message 8110 actually received from the peer, otherwise the protocol will be aborted.) 8111 8112 As the Finished message are message digests of the complete handshake 8113 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 8114 be used for external authentication procedures when the authentication 8115 provided by SSL/TLS is not desired or is not enough. 8116 [Bodo Moeller] 8117 8118 *) Enhanced support for Alpha Linux is added. Now ./config checks if 8119 the host supports BWX extension and if Compaq C is present on the 8120 $PATH. Just exploiting of the BWX extension results in 20-30% 8121 performance kick for some algorithms, e.g. DES and RC4 to mention 8122 a couple. Compaq C in turn generates ~20% faster code for MD5 and 8123 SHA1. 8124 [Andy Polyakov] 8125 8126 *) Add support for MS "fast SGC". This is arguably a violation of the 8127 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 8128 weak crypto and after checking the certificate is SGC a second one 8129 with strong crypto. MS SGC stops the first handshake after receiving 8130 the server certificate message and sends a second client hello. Since 8131 a server will typically do all the time consuming operations before 8132 expecting any further messages from the client (server key exchange 8133 is the most expensive) there is little difference between the two. 8134 8135 To get OpenSSL to support MS SGC we have to permit a second client 8136 hello message after we have sent server done. In addition we have to 8137 reset the MAC if we do get this second client hello. 8138 [Steve Henson] 8139 8140 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 8141 if a DER encoded private key is RSA or DSA traditional format. Changed 8142 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 8143 format DER encoded private key. Newer code should use PKCS#8 format which 8144 has the key type encoded in the ASN1 structure. Added DER private key 8145 support to pkcs8 application. 8146 [Steve Henson] 8147 8148 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 8149 ciphersuites has been selected (as required by the SSL 3/TLS 1 8150 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 8151 is set, we interpret this as a request to violate the specification 8152 (the worst that can happen is a handshake failure, and 'correct' 8153 behaviour would result in a handshake failure anyway). 8154 [Bodo Moeller] 8155 8156 *) In SSL_CTX_add_session, take into account that there might be multiple 8157 SSL_SESSION structures with the same session ID (e.g. when two threads 8158 concurrently obtain them from an external cache). 8159 The internal cache can handle only one SSL_SESSION with a given ID, 8160 so if there's a conflict, we now throw out the old one to achieve 8161 consistency. 8162 [Bodo Moeller] 8163 8164 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8165 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8166 some routines that use cipher OIDs: some ciphers do not have OIDs 8167 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8168 example. 8169 [Steve Henson] 8170 8171 *) Simplify the trust setting structure and code. Now we just have 8172 two sequences of OIDs for trusted and rejected settings. These will 8173 typically have values the same as the extended key usage extension 8174 and any application specific purposes. 8175 8176 The trust checking code now has a default behaviour: it will just 8177 check for an object with the same NID as the passed id. Functions can 8178 be provided to override either the default behaviour or the behaviour 8179 for a given id. SSL client, server and email already have functions 8180 in place for compatibility: they check the NID and also return "trusted" 8181 if the certificate is self signed. 8182 [Steve Henson] 8183 8184 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8185 traditional format into an EVP_PKEY structure. 8186 [Steve Henson] 8187 8188 *) Add a password callback function PEM_cb() which either prompts for 8189 a password if usr_data is NULL or otherwise assumes it is a null 8190 terminated password. Allow passwords to be passed on command line 8191 environment or config files in a few more utilities. 8192 [Steve Henson] 8193 8194 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8195 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8196 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8197 Update documentation. 8198 [Steve Henson] 8199 8200 *) Support for ASN1 "NULL" type. This could be handled before by using 8201 ASN1_TYPE but there wasn't any function that would try to read a NULL 8202 and produce an error if it couldn't. For compatibility we also have 8203 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8204 don't allocate anything because they don't need to. 8205 [Steve Henson] 8206 8207 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8208 for details. 8209 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8210 8211 *) Rebuild of the memory allocation routines used by OpenSSL code and 8212 possibly others as well. The purpose is to make an interface that 8213 provide hooks so anyone can build a separate set of allocation and 8214 deallocation routines to be used by OpenSSL, for example memory 8215 pool implementations, or something else, which was previously hard 8216 since Malloc(), Realloc() and Free() were defined as macros having 8217 the values malloc, realloc and free, respectively (except for Win32 8218 compilations). The same is provided for memory debugging code. 8219 OpenSSL already comes with functionality to find memory leaks, but 8220 this gives people a chance to debug other memory problems. 8221 8222 With these changes, a new set of functions and macros have appeared: 8223 8224 CRYPTO_set_mem_debug_functions() [F] 8225 CRYPTO_get_mem_debug_functions() [F] 8226 CRYPTO_dbg_set_options() [F] 8227 CRYPTO_dbg_get_options() [F] 8228 CRYPTO_malloc_debug_init() [M] 8229 8230 The memory debug functions are NULL by default, unless the library 8231 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8232 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8233 gives the standard debugging functions that come with OpenSSL) or 8234 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8235 provided by the library user) must be used. When the standard 8236 debugging functions are used, CRYPTO_dbg_set_options can be used to 8237 request additional information: 8238 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8239 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8240 8241 Also, things like CRYPTO_set_mem_functions will always give the 8242 expected result (the new set of functions is used for allocation 8243 and deallocation) at all times, regardless of platform and compiler 8244 options. 8245 8246 To finish it up, some functions that were never use in any other 8247 way than through macros have a new API and new semantic: 8248 8249 CRYPTO_dbg_malloc() 8250 CRYPTO_dbg_realloc() 8251 CRYPTO_dbg_free() 8252 8253 All macros of value have retained their old syntax. 8254 [Richard Levitte and Bodo Moeller] 8255 8256 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8257 ordering of SMIMECapabilities wasn't in "strength order" and there 8258 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8259 algorithm. 8260 [Steve Henson] 8261 8262 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8263 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8264 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8265 8266 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8267 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8268 functionality to handle multipart/signed properly) and a utility 8269 called 'smime' to call all this stuff. This is based on code I 8270 originally wrote for Celo who have kindly allowed it to be 8271 included in OpenSSL. 8272 [Steve Henson] 8273 8274 *) Add variants des_set_key_checked and des_set_key_unchecked of 8275 des_set_key (aka des_key_sched). Global variable des_check_key 8276 decides which of these is called by des_set_key; this way 8277 des_check_key behaves as it always did, but applications and 8278 the library itself, which was buggy for des_check_key == 1, 8279 have a cleaner way to pick the version they need. 8280 [Bodo Moeller] 8281 8282 *) New function PKCS12_newpass() which changes the password of a 8283 PKCS12 structure. 8284 [Steve Henson] 8285 8286 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8287 dynamic mix. In both cases the ids can be used as an index into the 8288 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8289 functions so they accept a list of the field values and the 8290 application doesn't need to directly manipulate the X509_TRUST 8291 structure. 8292 [Steve Henson] 8293 8294 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8295 need initialising. 8296 [Steve Henson] 8297 8298 *) Modify the way the V3 extension code looks up extensions. This now 8299 works in a similar way to the object code: we have some "standard" 8300 extensions in a static table which is searched with OBJ_bsearch() 8301 and the application can add dynamic ones if needed. The file 8302 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8303 updated whenever a new extension is added to the core code and kept 8304 in ext_nid order. There is a simple program 'tabtest.c' which checks 8305 this. New extensions are not added too often so this file can readily 8306 be maintained manually. 8307 8308 There are two big advantages in doing things this way. The extensions 8309 can be looked up immediately and no longer need to be "added" using 8310 X509V3_add_standard_extensions(): this function now does nothing. 8311 [Side note: I get *lots* of email saying the extension code doesn't 8312 work because people forget to call this function] 8313 Also no dynamic allocation is done unless new extensions are added: 8314 so if we don't add custom extensions there is no need to call 8315 X509V3_EXT_cleanup(). 8316 [Steve Henson] 8317 8318 *) Modify enc utility's salting as follows: make salting the default. Add a 8319 magic header, so unsalted files fail gracefully instead of just decrypting 8320 to garbage. This is because not salting is a big security hole, so people 8321 should be discouraged from doing it. 8322 [Ben Laurie] 8323 8324 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8325 digest to be passed on the command line but it only used this 8326 parameter when signing a certificate. Modified so all relevant 8327 operations are affected by the digest parameter including the 8328 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8329 DSA key was used because it didn't fix the digest. 8330 [Steve Henson] 8331 8332 *) Initial certificate chain verify code. Currently tests the untrusted 8333 certificates for consistency with the verify purpose (which is set 8334 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8335 8336 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8337 this is because it will reject chains with invalid extensions whereas 8338 every previous version of OpenSSL and SSLeay made no checks at all. 8339 8340 Trust code: checks the root CA for the relevant trust settings. Trust 8341 settings have an initial value consistent with the verify purpose: e.g. 8342 if the verify purpose is for SSL client use it expects the CA to be 8343 trusted for SSL client use. However the default value can be changed to 8344 permit custom trust settings: one example of this would be to only trust 8345 certificates from a specific "secure" set of CAs. 8346 8347 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8348 which should be used for version portability: especially since the 8349 verify structure is likely to change more often now. 8350 8351 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8352 to set them. If not set then assume SSL clients will verify SSL servers 8353 and vice versa. 8354 8355 Two new options to the verify program: -untrusted allows a set of 8356 untrusted certificates to be passed in and -purpose which sets the 8357 intended purpose of the certificate. If a purpose is set then the 8358 new chain verify code is used to check extension consistency. 8359 [Steve Henson] 8360 8361 *) Support for the authority information access extension. 8362 [Steve Henson] 8363 8364 *) Modify RSA and DSA PEM read routines to transparently handle 8365 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8366 public keys in a format compatible with certificate 8367 SubjectPublicKeyInfo structures. Unfortunately there were already 8368 functions called *_PublicKey_* which used various odd formats so 8369 these are retained for compatibility: however the DSA variants were 8370 never in a public release so they have been deleted. Changed dsa/rsa 8371 utilities to handle the new format: note no releases ever handled public 8372 keys so we should be OK. 8373 8374 The primary motivation for this change is to avoid the same fiasco 8375 that dogs private keys: there are several incompatible private key 8376 formats some of which are standard and some OpenSSL specific and 8377 require various evil hacks to allow partial transparent handling and 8378 even then it doesn't work with DER formats. Given the option anything 8379 other than PKCS#8 should be dumped: but the other formats have to 8380 stay in the name of compatibility. 8381 8382 With public keys and the benefit of hindsight one standard format 8383 is used which works with EVP_PKEY, RSA or DSA structures: though 8384 it clearly returns an error if you try to read the wrong kind of key. 8385 8386 Added a -pubkey option to the 'x509' utility to output the public key. 8387 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8388 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8389 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8390 that do the same as the EVP_PKEY_assign_*() except they up the 8391 reference count of the added key (they don't "swallow" the 8392 supplied key). 8393 [Steve Henson] 8394 8395 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8396 CRLs would fail if the file contained no certificates or no CRLs: 8397 added a new function to read in both types and return the number 8398 read: this means that if none are read it will be an error. The 8399 DER versions of the certificate and CRL reader would always fail 8400 because it isn't possible to mix certificates and CRLs in DER format 8401 without choking one or the other routine. Changed this to just read 8402 a certificate: this is the best we can do. Also modified the code 8403 in apps/verify.c to take notice of return codes: it was previously 8404 attempting to read in certificates from NULL pointers and ignoring 8405 any errors: this is one reason why the cert and CRL reader seemed 8406 to work. It doesn't check return codes from the default certificate 8407 routines: these may well fail if the certificates aren't installed. 8408 [Steve Henson] 8409 8410 *) Code to support otherName option in GeneralName. 8411 [Steve Henson] 8412 8413 *) First update to verify code. Change the verify utility 8414 so it warns if it is passed a self signed certificate: 8415 for consistency with the normal behaviour. X509_verify 8416 has been modified to it will now verify a self signed 8417 certificate if *exactly* the same certificate appears 8418 in the store: it was previously impossible to trust a 8419 single self signed certificate. This means that: 8420 openssl verify ss.pem 8421 now gives a warning about a self signed certificate but 8422 openssl verify -CAfile ss.pem ss.pem 8423 is OK. 8424 [Steve Henson] 8425 8426 *) For servers, store verify_result in SSL_SESSION data structure 8427 (and add it to external session representation). 8428 This is needed when client certificate verifications fails, 8429 but an application-provided verification callback (set by 8430 SSL_CTX_set_cert_verify_callback) allows accepting the session 8431 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8432 but returns 1): When the session is reused, we have to set 8433 ssl->verify_result to the appropriate error code to avoid 8434 security holes. 8435 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8436 8437 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8438 case in PKCS7_dataInit() where the signed PKCS7 structure 8439 didn't contain any existing data because it was being created. 8440 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8441 8442 *) Add a salt to the key derivation routines in enc.c. This 8443 forms the first 8 bytes of the encrypted file. Also add a 8444 -S option to allow a salt to be input on the command line. 8445 [Steve Henson] 8446 8447 *) New function X509_cmp(). Oddly enough there wasn't a function 8448 to compare two certificates. We do this by working out the SHA1 8449 hash and comparing that. X509_cmp() will be needed by the trust 8450 code. 8451 [Steve Henson] 8452 8453 *) SSL_get1_session() is like SSL_get_session(), but increments 8454 the reference count in the SSL_SESSION returned. 8455 [Geoff Thorpe <geoff@eu.c2.net>] 8456 8457 *) Fix for 'req': it was adding a null to request attributes. 8458 Also change the X509_LOOKUP and X509_INFO code to handle 8459 certificate auxiliary information. 8460 [Steve Henson] 8461 8462 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8463 the 'enc' command. 8464 [Steve Henson] 8465 8466 *) Add the possibility to add extra information to the memory leak 8467 detecting output, to form tracebacks, showing from where each 8468 allocation was originated: CRYPTO_push_info("constant string") adds 8469 the string plus current file name and line number to a per-thread 8470 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8471 is like calling CYRPTO_pop_info() until the stack is empty. 8472 Also updated memory leak detection code to be multi-thread-safe. 8473 [Richard Levitte] 8474 8475 *) Add options -text and -noout to pkcs7 utility and delete the 8476 encryption options which never did anything. Update docs. 8477 [Steve Henson] 8478 8479 *) Add options to some of the utilities to allow the pass phrase 8480 to be included on either the command line (not recommended on 8481 OSes like Unix) or read from the environment. Update the 8482 manpages and fix a few bugs. 8483 [Steve Henson] 8484 8485 *) Add a few manpages for some of the openssl commands. 8486 [Steve Henson] 8487 8488 *) Fix the -revoke option in ca. It was freeing up memory twice, 8489 leaking and not finding already revoked certificates. 8490 [Steve Henson] 8491 8492 *) Extensive changes to support certificate auxiliary information. 8493 This involves the use of X509_CERT_AUX structure and X509_AUX 8494 functions. An X509_AUX function such as PEM_read_X509_AUX() 8495 can still read in a certificate file in the usual way but it 8496 will also read in any additional "auxiliary information". By 8497 doing things this way a fair degree of compatibility can be 8498 retained: existing certificates can have this information added 8499 using the new 'x509' options. 8500 8501 Current auxiliary information includes an "alias" and some trust 8502 settings. The trust settings will ultimately be used in enhanced 8503 certificate chain verification routines: currently a certificate 8504 can only be trusted if it is self signed and then it is trusted 8505 for all purposes. 8506 [Steve Henson] 8507 8508 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8509 The problem was that one of the replacement routines had not been working 8510 since SSLeay releases. For now the offending routine has been replaced 8511 with non-optimised assembler. Even so, this now gives around 95% 8512 performance improvement for 1024 bit RSA signs. 8513 [Mark Cox] 8514 8515 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8516 handling. Most clients have the effective key size in bits equal to 8517 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8518 A few however don't do this and instead use the size of the decrypted key 8519 to determine the RC2 key length and the AlgorithmIdentifier to determine 8520 the effective key length. In this case the effective key length can still 8521 be 40 bits but the key length can be 168 bits for example. This is fixed 8522 by manually forcing an RC2 key into the EVP_PKEY structure because the 8523 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8524 the key length and effective key length are equal. 8525 [Steve Henson] 8526 8527 *) Add a bunch of functions that should simplify the creation of 8528 X509_NAME structures. Now you should be able to do: 8529 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8530 and have it automatically work out the correct field type and fill in 8531 the structures. The more adventurous can try: 8532 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8533 and it will (hopefully) work out the correct multibyte encoding. 8534 [Steve Henson] 8535 8536 *) Change the 'req' utility to use the new field handling and multibyte 8537 copy routines. Before the DN field creation was handled in an ad hoc 8538 way in req, ca, and x509 which was rather broken and didn't support 8539 BMPStrings or UTF8Strings. Since some software doesn't implement 8540 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8541 using the dirstring_type option. See the new comment in the default 8542 openssl.cnf for more info. 8543 [Steve Henson] 8544 8545 *) Make crypto/rand/md_rand.c more robust: 8546 - Assure unique random numbers after fork(). 8547 - Make sure that concurrent threads access the global counter and 8548 md serializably so that we never lose entropy in them 8549 or use exactly the same state in multiple threads. 8550 Access to the large state is not always serializable because 8551 the additional locking could be a performance killer, and 8552 md should be large enough anyway. 8553 [Bodo Moeller] 8554 8555 *) New file apps/app_rand.c with commonly needed functionality 8556 for handling the random seed file. 8557 8558 Use the random seed file in some applications that previously did not: 8559 ca, 8560 dsaparam -genkey (which also ignored its '-rand' option), 8561 s_client, 8562 s_server, 8563 x509 (when signing). 8564 Except on systems with /dev/urandom, it is crucial to have a random 8565 seed file at least for key creation, DSA signing, and for DH exchanges; 8566 for RSA signatures we could do without one. 8567 8568 gendh and gendsa (unlike genrsa) used to read only the first byte 8569 of each file listed in the '-rand' option. The function as previously 8570 found in genrsa is now in app_rand.c and is used by all programs 8571 that support '-rand'. 8572 [Bodo Moeller] 8573 8574 *) In RAND_write_file, use mode 0600 for creating files; 8575 don't just chmod when it may be too late. 8576 [Bodo Moeller] 8577 8578 *) Report an error from X509_STORE_load_locations 8579 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8580 [Bill Perry] 8581 8582 *) New function ASN1_mbstring_copy() this copies a string in either 8583 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8584 into an ASN1_STRING type. A mask of permissible types is passed 8585 and it chooses the "minimal" type to use or an error if not type 8586 is suitable. 8587 [Steve Henson] 8588 8589 *) Add function equivalents to the various macros in asn1.h. The old 8590 macros are retained with an M_ prefix. Code inside the library can 8591 use the M_ macros. External code (including the openssl utility) 8592 should *NOT* in order to be "shared library friendly". 8593 [Steve Henson] 8594 8595 *) Add various functions that can check a certificate's extensions 8596 to see if it usable for various purposes such as SSL client, 8597 server or S/MIME and CAs of these types. This is currently 8598 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8599 verification. Also added a -purpose flag to x509 utility to 8600 print out all the purposes. 8601 [Steve Henson] 8602 8603 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8604 functions. 8605 [Steve Henson] 8606 8607 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8608 for, obtain and decode and extension and obtain its critical flag. 8609 This allows all the necessary extension code to be handled in a 8610 single function call. 8611 [Steve Henson] 8612 8613 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8614 platforms. See crypto/rc4/rc4_enc.c for further details. 8615 [Andy Polyakov] 8616 8617 *) New -noout option to asn1parse. This causes no output to be produced 8618 its main use is when combined with -strparse and -out to extract data 8619 from a file (which may not be in ASN.1 format). 8620 [Steve Henson] 8621 8622 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8623 when producing the local key id. 8624 [Richard Levitte <levitte@stacken.kth.se>] 8625 8626 *) New option -dhparam in s_server. This allows a DH parameter file to be 8627 stated explicitly. If it is not stated then it tries the first server 8628 certificate file. The previous behaviour hard coded the filename 8629 "server.pem". 8630 [Steve Henson] 8631 8632 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8633 a public key to be input or output. For example: 8634 openssl rsa -in key.pem -pubout -out pubkey.pem 8635 Also added necessary DSA public key functions to handle this. 8636 [Steve Henson] 8637 8638 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8639 in the message. This was handled by allowing 8640 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8641 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8642 8643 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8644 to the end of the strings whereas this didn't. This would cause problems 8645 if strings read with d2i_ASN1_bytes() were later modified. 8646 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8647 8648 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8649 data and it contains EOF it will end up returning an error. This is 8650 caused by input 46 bytes long. The cause is due to the way base64 8651 BIOs find the start of base64 encoded data. They do this by trying a 8652 trial decode on each line until they find one that works. When they 8653 do a flag is set and it starts again knowing it can pass all the 8654 data directly through the decoder. Unfortunately it doesn't reset 8655 the context it uses. This means that if EOF is reached an attempt 8656 is made to pass two EOFs through the context and this causes the 8657 resulting error. This can also cause other problems as well. As is 8658 usual with these problems it takes *ages* to find and the fix is 8659 trivial: move one line. 8660 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8661 8662 *) Ugly workaround to get s_client and s_server working under Windows. The 8663 old code wouldn't work because it needed to select() on sockets and the 8664 tty (for keypresses and to see if data could be written). Win32 only 8665 supports select() on sockets so we select() with a 1s timeout on the 8666 sockets and then see if any characters are waiting to be read, if none 8667 are present then we retry, we also assume we can always write data to 8668 the tty. This isn't nice because the code then blocks until we've 8669 received a complete line of data and it is effectively polling the 8670 keyboard at 1s intervals: however it's quite a bit better than not 8671 working at all :-) A dedicated Windows application might handle this 8672 with an event loop for example. 8673 [Steve Henson] 8674 8675 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8676 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8677 will be called when RSA_sign() and RSA_verify() are used. This is useful 8678 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8679 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8680 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8681 This necessitated the support of an extra signature type NID_md5_sha1 8682 for SSL signatures and modifications to the SSL library to use it instead 8683 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8684 [Steve Henson] 8685 8686 *) Add new -verify -CAfile and -CApath options to the crl program, these 8687 will lookup a CRL issuers certificate and verify the signature in a 8688 similar way to the verify program. Tidy up the crl program so it 8689 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8690 less strict. It will now permit CRL extensions even if it is not 8691 a V2 CRL: this will allow it to tolerate some broken CRLs. 8692 [Steve Henson] 8693 8694 *) Initialize all non-automatic variables each time one of the openssl 8695 sub-programs is started (this is necessary as they may be started 8696 multiple times from the "OpenSSL>" prompt). 8697 [Lennart Bang, Bodo Moeller] 8698 8699 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8700 removing all other RSA functionality (this is what NO_RSA does). This 8701 is so (for example) those in the US can disable those operations covered 8702 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8703 key generation. 8704 [Steve Henson] 8705 8706 *) Non-copying interface to BIO pairs. 8707 (still largely untested) 8708 [Bodo Moeller] 8709 8710 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8711 ASCII string. This was handled independently in various places before. 8712 [Steve Henson] 8713 8714 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8715 UTF8 strings a character at a time. 8716 [Steve Henson] 8717 8718 *) Use client_version from client hello to select the protocol 8719 (s23_srvr.c) and for RSA client key exchange verification 8720 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8721 [Bodo Moeller] 8722 8723 *) Add various utility functions to handle SPKACs, these were previously 8724 handled by poking round in the structure internals. Added new function 8725 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8726 print, verify and generate SPKACs. Based on an original idea from 8727 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8728 [Steve Henson] 8729 8730 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8731 [Andy Polyakov] 8732 8733 *) Allow the config file extension section to be overwritten on the 8734 command line. Based on an original idea from Massimiliano Pala 8735 <madwolf@comune.modena.it>. The new option is called -extensions 8736 and can be applied to ca, req and x509. Also -reqexts to override 8737 the request extensions in req and -crlexts to override the crl extensions 8738 in ca. 8739 [Steve Henson] 8740 8741 *) Add new feature to the SPKAC handling in ca. Now you can include 8742 the same field multiple times by preceding it by "XXXX." for example: 8743 1.OU="Unit name 1" 8744 2.OU="Unit name 2" 8745 this is the same syntax as used in the req config file. 8746 [Steve Henson] 8747 8748 *) Allow certificate extensions to be added to certificate requests. These 8749 are specified in a 'req_extensions' option of the req section of the 8750 config file. They can be printed out with the -text option to req but 8751 are otherwise ignored at present. 8752 [Steve Henson] 8753 8754 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8755 data read consists of only the final block it would not decrypted because 8756 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8757 A misplaced 'break' also meant the decrypted final block might not be 8758 copied until the next read. 8759 [Steve Henson] 8760 8761 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8762 a few extra parameters to the DH structure: these will be useful if 8763 for example we want the value of 'q' or implement X9.42 DH. 8764 [Steve Henson] 8765 8766 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8767 provides hooks that allow the default DSA functions or functions on a 8768 "per key" basis to be replaced. This allows hardware acceleration and 8769 hardware key storage to be handled without major modification to the 8770 library. Also added low level modexp hooks and CRYPTO_EX structure and 8771 associated functions. 8772 [Steve Henson] 8773 8774 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8775 as "read only": it can't be written to and the buffer it points to will 8776 not be freed. Reading from a read only BIO is much more efficient than 8777 a normal memory BIO. This was added because there are several times when 8778 an area of memory needs to be read from a BIO. The previous method was 8779 to create a memory BIO and write the data to it, this results in two 8780 copies of the data and an O(n^2) reading algorithm. There is a new 8781 function BIO_new_mem_buf() which creates a read only memory BIO from 8782 an area of memory. Also modified the PKCS#7 routines to use read only 8783 memory BIOs. 8784 [Steve Henson] 8785 8786 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8787 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8788 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8789 but a retry condition occured while trying to read the rest. 8790 [Bodo Moeller] 8791 8792 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8793 NID_pkcs7_encrypted by default: this was wrong since this should almost 8794 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8795 the encrypted data type: this is a more sensible place to put it and it 8796 allows the PKCS#12 code to be tidied up that duplicated this 8797 functionality. 8798 [Steve Henson] 8799 8800 *) Changed obj_dat.pl script so it takes its input and output files on 8801 the command line. This should avoid shell escape redirection problems 8802 under Win32. 8803 [Steve Henson] 8804 8805 *) Initial support for certificate extension requests, these are included 8806 in things like Xenroll certificate requests. Included functions to allow 8807 extensions to be obtained and added. 8808 [Steve Henson] 8809 8810 *) -crlf option to s_client and s_server for sending newlines as 8811 CRLF (as required by many protocols). 8812 [Bodo Moeller] 8813 8814 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8815 8816 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8817 [Ralf S. Engelschall] 8818 8819 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8820 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8821 8822 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8823 program. 8824 [Steve Henson] 8825 8826 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8827 DH parameters/keys (q is lost during that conversion, but the resulting 8828 DH parameters contain its length). 8829 8830 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8831 much faster than DH_generate_parameters (which creates parameters 8832 where p = 2*q + 1), and also the smaller q makes DH computations 8833 much more efficient (160-bit exponentiation instead of 1024-bit 8834 exponentiation); so this provides a convenient way to support DHE 8835 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8836 utter importance to use 8837 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8838 or 8839 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8840 when such DH parameters are used, because otherwise small subgroup 8841 attacks may become possible! 8842 [Bodo Moeller] 8843 8844 *) Avoid memory leak in i2d_DHparams. 8845 [Bodo Moeller] 8846 8847 *) Allow the -k option to be used more than once in the enc program: 8848 this allows the same encrypted message to be read by multiple recipients. 8849 [Steve Henson] 8850 8851 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8852 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8853 it will always use the numerical form of the OID, even if it has a short 8854 or long name. 8855 [Steve Henson] 8856 8857 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8858 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8859 otherwise bn_mod_exp was called. In the case of hardware keys for example 8860 no private key components need be present and it might store extra data 8861 in the RSA structure, which cannot be accessed from bn_mod_exp. 8862 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8863 private key operations. 8864 [Steve Henson] 8865 8866 *) Added support for SPARC Linux. 8867 [Andy Polyakov] 8868 8869 *) pem_password_cb function type incompatibly changed from 8870 typedef int pem_password_cb(char *buf, int size, int rwflag); 8871 to 8872 ....(char *buf, int size, int rwflag, void *userdata); 8873 so that applications can pass data to their callbacks: 8874 The PEM[_ASN1]_{read,write}... functions and macros now take an 8875 additional void * argument, which is just handed through whenever 8876 the password callback is called. 8877 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8878 8879 New function SSL_CTX_set_default_passwd_cb_userdata. 8880 8881 Compatibility note: As many C implementations push function arguments 8882 onto the stack in reverse order, the new library version is likely to 8883 interoperate with programs that have been compiled with the old 8884 pem_password_cb definition (PEM_whatever takes some data that 8885 happens to be on the stack as its last argument, and the callback 8886 just ignores this garbage); but there is no guarantee whatsoever that 8887 this will work. 8888 8889 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8890 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8891 problems not only on Windows, but also on some Unix platforms. 8892 To avoid problematic command lines, these definitions are now in an 8893 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8894 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8895 [Bodo Moeller] 8896 8897 *) MIPS III/IV assembler module is reimplemented. 8898 [Andy Polyakov] 8899 8900 *) More DES library cleanups: remove references to srand/rand and 8901 delete an unused file. 8902 [Ulf M�ller] 8903 8904 *) Add support for the the free Netwide assembler (NASM) under Win32, 8905 since not many people have MASM (ml) and it can be hard to obtain. 8906 This is currently experimental but it seems to work OK and pass all 8907 the tests. Check out INSTALL.W32 for info. 8908 [Steve Henson] 8909 8910 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8911 without temporary keys kept an extra copy of the server key, 8912 and connections with temporary keys did not free everything in case 8913 of an error. 8914 [Bodo Moeller] 8915 8916 *) New function RSA_check_key and new openssl rsa option -check 8917 for verifying the consistency of RSA keys. 8918 [Ulf Moeller, Bodo Moeller] 8919 8920 *) Various changes to make Win32 compile work: 8921 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8922 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8923 comparison" warnings. 8924 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8925 [Steve Henson] 8926 8927 *) Add a debugging option to PKCS#5 v2 key generation function: when 8928 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8929 derived keys are printed to stderr. 8930 [Steve Henson] 8931 8932 *) Copy the flags in ASN1_STRING_dup(). 8933 [Roman E. Pavlov <pre@mo.msk.ru>] 8934 8935 *) The x509 application mishandled signing requests containing DSA 8936 keys when the signing key was also DSA and the parameters didn't match. 8937 8938 It was supposed to omit the parameters when they matched the signing key: 8939 the verifying software was then supposed to automatically use the CA's 8940 parameters if they were absent from the end user certificate. 8941 8942 Omitting parameters is no longer recommended. The test was also 8943 the wrong way round! This was probably due to unusual behaviour in 8944 EVP_cmp_parameters() which returns 1 if the parameters match. 8945 This meant that parameters were omitted when they *didn't* match and 8946 the certificate was useless. Certificates signed with 'ca' didn't have 8947 this bug. 8948 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8949 8950 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8951 The interface is as follows: 8952 Applications can use 8953 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8954 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8955 "off" is now the default. 8956 The library internally uses 8957 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8958 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8959 to disable memory-checking temporarily. 8960 8961 Some inconsistent states that previously were possible (and were 8962 even the default) are now avoided. 8963 8964 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8965 with each memory chunk allocated; this is occasionally more helpful 8966 than just having a counter. 8967 8968 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8969 8970 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8971 extensions. 8972 [Bodo Moeller] 8973 8974 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8975 which largely parallels "options", but is for changing API behaviour, 8976 whereas "options" are about protocol behaviour. 8977 Initial "mode" flags are: 8978 8979 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8980 a single record has been written. 8981 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8982 retries use the same buffer location. 8983 (But all of the contents must be 8984 copied!) 8985 [Bodo Moeller] 8986 8987 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8988 worked. 8989 8990 *) Fix problems with no-hmac etc. 8991 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8992 8993 *) New functions RSA_get_default_method(), RSA_set_method() and 8994 RSA_get_method(). These allows replacement of RSA_METHODs without having 8995 to mess around with the internals of an RSA structure. 8996 [Steve Henson] 8997 8998 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8999 Also really enable memory leak checks in openssl.c and in some 9000 test programs. 9001 [Chad C. Mulligan, Bodo Moeller] 9002 9003 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 9004 up the length of negative integers. This has now been simplified to just 9005 store the length when it is first determined and use it later, rather 9006 than trying to keep track of where data is copied and updating it to 9007 point to the end. 9008 [Steve Henson, reported by Brien Wheeler 9009 <bwheeler@authentica-security.com>] 9010 9011 *) Add a new function PKCS7_signatureVerify. This allows the verification 9012 of a PKCS#7 signature but with the signing certificate passed to the 9013 function itself. This contrasts with PKCS7_dataVerify which assumes the 9014 certificate is present in the PKCS#7 structure. This isn't always the 9015 case: certificates can be omitted from a PKCS#7 structure and be 9016 distributed by "out of band" means (such as a certificate database). 9017 [Steve Henson] 9018 9019 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 9020 function prototypes in pem.h, also change util/mkdef.pl to add the 9021 necessary function names. 9022 [Steve Henson] 9023 9024 *) mk1mf.pl (used by Windows builds) did not properly read the 9025 options set by Configure in the top level Makefile, and Configure 9026 was not even able to write more than one option correctly. 9027 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 9028 [Bodo Moeller] 9029 9030 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 9031 file to be loaded from a BIO or FILE pointer. The BIO version will 9032 for example allow memory BIOs to contain config info. 9033 [Steve Henson] 9034 9035 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 9036 Whoever hopes to achieve shared-library compatibility across versions 9037 must use this, not the compile-time macro. 9038 (Exercise 0.9.4: Which is the minimum library version required by 9039 such programs?) 9040 Note: All this applies only to multi-threaded programs, others don't 9041 need locks. 9042 [Bodo Moeller] 9043 9044 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 9045 through a BIO pair triggered the default case, i.e. 9046 SSLerr(...,SSL_R_UNKNOWN_STATE). 9047 [Bodo Moeller] 9048 9049 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 9050 can use the SSL library even if none of the specific BIOs is 9051 appropriate. 9052 [Bodo Moeller] 9053 9054 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 9055 for the encoded length. 9056 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 9057 9058 *) Add initial documentation of the X509V3 functions. 9059 [Steve Henson] 9060 9061 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 9062 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 9063 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 9064 secure PKCS#8 private key format with a high iteration count. 9065 [Steve Henson] 9066 9067 *) Fix determination of Perl interpreter: A perl or perl5 9068 _directory_ in $PATH was also accepted as the interpreter. 9069 [Ralf S. Engelschall] 9070 9071 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 9072 wrong with it but it was very old and did things like calling 9073 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 9074 unusual formatting. 9075 [Steve Henson] 9076 9077 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 9078 to use the new extension code. 9079 [Steve Henson] 9080 9081 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 9082 with macros. This should make it easier to change their form, add extra 9083 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 9084 constant. 9085 [Steve Henson] 9086 9087 *) Add to configuration table a new entry that can specify an alternative 9088 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 9089 according to Mark Crispin <MRC@Panda.COM>. 9090 [Bodo Moeller] 9091 9092#if 0 9093 *) DES CBC did not update the IV. Weird. 9094 [Ben Laurie] 9095#else 9096 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 9097 Changing the behaviour of the former might break existing programs -- 9098 where IV updating is needed, des_ncbc_encrypt can be used. 9099#endif 9100 9101 *) When bntest is run from "make test" it drives bc to check its 9102 calculations, as well as internally checking them. If an internal check 9103 fails, it needs to cause bc to give a non-zero result or make test carries 9104 on without noticing the failure. Fixed. 9105 [Ben Laurie] 9106 9107 *) DES library cleanups. 9108 [Ulf M�ller] 9109 9110 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 9111 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 9112 ciphers. NOTE: although the key derivation function has been verified 9113 against some published test vectors it has not been extensively tested 9114 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 9115 of v2.0. 9116 [Steve Henson] 9117 9118 *) Instead of "mkdir -p", which is not fully portable, use new 9119 Perl script "util/mkdir-p.pl". 9120 [Bodo Moeller] 9121 9122 *) Rewrite the way password based encryption (PBE) is handled. It used to 9123 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 9124 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 9125 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 9126 the 'parameter' field of the AlgorithmIdentifier is passed to the 9127 underlying key generation function so it must do its own ASN1 parsing. 9128 This has also changed the EVP_PBE_CipherInit() function which now has a 9129 'parameter' argument instead of literal salt and iteration count values 9130 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 9131 [Steve Henson] 9132 9133 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 9134 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 9135 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 9136 KEY" because this clashed with PKCS#8 unencrypted string. Since this 9137 value was just used as a "magic string" and not used directly its 9138 value doesn't matter. 9139 [Steve Henson] 9140 9141 *) Introduce some semblance of const correctness to BN. Shame C doesn't 9142 support mutable. 9143 [Ben Laurie] 9144 9145 *) "linux-sparc64" configuration (ultrapenguin). 9146 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 9147 "linux-sparc" configuration. 9148 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 9149 9150 *) config now generates no-xxx options for missing ciphers. 9151 [Ulf M�ller] 9152 9153 *) Support the EBCDIC character set (work in progress). 9154 File ebcdic.c not yet included because it has a different license. 9155 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9156 9157 *) Support BS2000/OSD-POSIX. 9158 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9159 9160 *) Make callbacks for key generation use void * instead of char *. 9161 [Ben Laurie] 9162 9163 *) Make S/MIME samples compile (not yet tested). 9164 [Ben Laurie] 9165 9166 *) Additional typesafe stacks. 9167 [Ben Laurie] 9168 9169 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9170 [Bodo Moeller] 9171 9172 9173 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9174 9175 *) New configuration variant "sco5-gcc". 9176 9177 *) Updated some demos. 9178 [Sean O Riordain, Wade Scholine] 9179 9180 *) Add missing BIO_free at exit of pkcs12 application. 9181 [Wu Zhigang] 9182 9183 *) Fix memory leak in conf.c. 9184 [Steve Henson] 9185 9186 *) Updates for Win32 to assembler version of MD5. 9187 [Steve Henson] 9188 9189 *) Set #! path to perl in apps/der_chop to where we found it 9190 instead of using a fixed path. 9191 [Bodo Moeller] 9192 9193 *) SHA library changes for irix64-mips4-cc. 9194 [Andy Polyakov] 9195 9196 *) Improvements for VMS support. 9197 [Richard Levitte] 9198 9199 9200 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9201 9202 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9203 This also avoids the problems with SC4.2 and unpatched SC5. 9204 [Andy Polyakov <appro@fy.chalmers.se>] 9205 9206 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9207 These are required because of the typesafe stack would otherwise break 9208 existing code. If old code used a structure member which used to be STACK 9209 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9210 sk_num or sk_value it would produce an error because the num, data members 9211 are not present in STACK_OF. Now it just produces a warning. sk_set 9212 replaces the old method of assigning a value to sk_value 9213 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9214 that does this will no longer work (and should use sk_set instead) but 9215 this could be regarded as a "questionable" behaviour anyway. 9216 [Steve Henson] 9217 9218 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9219 correctly handle encrypted S/MIME data. 9220 [Steve Henson] 9221 9222 *) Change type of various DES function arguments from des_cblock 9223 (which means, in function argument declarations, pointer to char) 9224 to des_cblock * (meaning pointer to array with 8 char elements), 9225 which allows the compiler to do more typechecking; it was like 9226 that back in SSLeay, but with lots of ugly casts. 9227 9228 Introduce new type const_des_cblock. 9229 [Bodo Moeller] 9230 9231 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9232 problems: find RecipientInfo structure that matches recipient certificate 9233 and initialise the ASN1 structures properly based on passed cipher. 9234 [Steve Henson] 9235 9236 *) Belatedly make the BN tests actually check the results. 9237 [Ben Laurie] 9238 9239 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9240 to and from BNs: it was completely broken. New compilation option 9241 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9242 key elements as negative integers. 9243 [Steve Henson] 9244 9245 *) Reorganize and speed up MD5. 9246 [Andy Polyakov <appro@fy.chalmers.se>] 9247 9248 *) VMS support. 9249 [Richard Levitte <richard@levitte.org>] 9250 9251 *) New option -out to asn1parse to allow the parsed structure to be 9252 output to a file. This is most useful when combined with the -strparse 9253 option to examine the output of things like OCTET STRINGS. 9254 [Steve Henson] 9255 9256 *) Make SSL library a little more fool-proof by not requiring any longer 9257 that SSL_set_{accept,connect}_state be called before 9258 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9259 in many applications because usually everything *appeared* to work as 9260 intended anyway -- now it really works as intended). 9261 [Bodo Moeller] 9262 9263 *) Move openssl.cnf out of lib/. 9264 [Ulf M�ller] 9265 9266 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9267 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9268 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9269 [Ralf S. Engelschall] 9270 9271 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9272 handle PKCS#7 enveloped data properly. 9273 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9274 9275 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9276 copying pointers. The cert_st handling is changed by this in 9277 various ways (and thus what used to be known as ctx->default_cert 9278 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9279 any longer when s->cert does not give us what we need). 9280 ssl_cert_instantiate becomes obsolete by this change. 9281 As soon as we've got the new code right (possibly it already is?), 9282 we have solved a couple of bugs of the earlier code where s->cert 9283 was used as if it could not have been shared with other SSL structures. 9284 9285 Note that using the SSL API in certain dirty ways now will result 9286 in different behaviour than observed with earlier library versions: 9287 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9288 does not influence s as it used to. 9289 9290 In order to clean up things more thoroughly, inside SSL_SESSION 9291 we don't use CERT any longer, but a new structure SESS_CERT 9292 that holds per-session data (if available); currently, this is 9293 the peer's certificate chain and, for clients, the server's certificate 9294 and temporary key. CERT holds only those values that can have 9295 meaningful defaults in an SSL_CTX. 9296 [Bodo Moeller] 9297 9298 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9299 from the internal representation. Various PKCS#7 fixes: remove some 9300 evil casts and set the enc_dig_alg field properly based on the signing 9301 key type. 9302 [Steve Henson] 9303 9304 *) Allow PKCS#12 password to be set from the command line or the 9305 environment. Let 'ca' get its config file name from the environment 9306 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9307 and 'x509'). 9308 [Steve Henson] 9309 9310 *) Allow certificate policies extension to use an IA5STRING for the 9311 organization field. This is contrary to the PKIX definition but 9312 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9313 extension option. 9314 [Steve Henson] 9315 9316 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9317 without disallowing inline assembler and the like for non-pedantic builds. 9318 [Ben Laurie] 9319 9320 *) Support Borland C++ builder. 9321 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9322 9323 *) Support Mingw32. 9324 [Ulf M�ller] 9325 9326 *) SHA-1 cleanups and performance enhancements. 9327 [Andy Polyakov <appro@fy.chalmers.se>] 9328 9329 *) Sparc v8plus assembler for the bignum library. 9330 [Andy Polyakov <appro@fy.chalmers.se>] 9331 9332 *) Accept any -xxx and +xxx compiler options in Configure. 9333 [Ulf M�ller] 9334 9335 *) Update HPUX configuration. 9336 [Anonymous] 9337 9338 *) Add missing sk_<type>_unshift() function to safestack.h 9339 [Ralf S. Engelschall] 9340 9341 *) New function SSL_CTX_use_certificate_chain_file that sets the 9342 "extra_cert"s in addition to the certificate. (This makes sense 9343 only for "PEM" format files, as chains as a whole are not 9344 DER-encoded.) 9345 [Bodo Moeller] 9346 9347 *) Support verify_depth from the SSL API. 9348 x509_vfy.c had what can be considered an off-by-one-error: 9349 Its depth (which was not part of the external interface) 9350 was actually counting the number of certificates in a chain; 9351 now it really counts the depth. 9352 [Bodo Moeller] 9353 9354 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9355 instead of X509err, which often resulted in confusing error 9356 messages since the error codes are not globally unique 9357 (e.g. an alleged error in ssl3_accept when a certificate 9358 didn't match the private key). 9359 9360 *) New function SSL_CTX_set_session_id_context that allows to set a default 9361 value (so that you don't need SSL_set_session_id_context for each 9362 connection using the SSL_CTX). 9363 [Bodo Moeller] 9364 9365 *) OAEP decoding bug fix. 9366 [Ulf M�ller] 9367 9368 *) Support INSTALL_PREFIX for package builders, as proposed by 9369 David Harris. 9370 [Bodo Moeller] 9371 9372 *) New Configure options "threads" and "no-threads". For systems 9373 where the proper compiler options are known (currently Solaris 9374 and Linux), "threads" is the default. 9375 [Bodo Moeller] 9376 9377 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9378 [Bodo Moeller] 9379 9380 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9381 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9382 such as /usr/local/bin. 9383 [Bodo Moeller] 9384 9385 *) "make linux-shared" to build shared libraries. 9386 [Niels Poppe <niels@netbox.org>] 9387 9388 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9389 [Ulf M�ller] 9390 9391 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9392 extension adding in x509 utility. 9393 [Steve Henson] 9394 9395 *) Remove NOPROTO sections and error code comments. 9396 [Ulf M�ller] 9397 9398 *) Partial rewrite of the DEF file generator to now parse the ANSI 9399 prototypes. 9400 [Steve Henson] 9401 9402 *) New Configure options --prefix=DIR and --openssldir=DIR. 9403 [Ulf M�ller] 9404 9405 *) Complete rewrite of the error code script(s). It is all now handled 9406 by one script at the top level which handles error code gathering, 9407 header rewriting and C source file generation. It should be much better 9408 than the old method: it now uses a modified version of Ulf's parser to 9409 read the ANSI prototypes in all header files (thus the old K&R definitions 9410 aren't needed for error creation any more) and do a better job of 9411 translating function codes into names. The old 'ASN1 error code imbedded 9412 in a comment' is no longer necessary and it doesn't use .err files which 9413 have now been deleted. Also the error code call doesn't have to appear all 9414 on one line (which resulted in some large lines...). 9415 [Steve Henson] 9416 9417 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9418 [Bodo Moeller] 9419 9420 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9421 0 (which usually indicates a closed connection), but continue reading. 9422 [Bodo Moeller] 9423 9424 *) Fix some race conditions. 9425 [Bodo Moeller] 9426 9427 *) Add support for CRL distribution points extension. Add Certificate 9428 Policies and CRL distribution points documentation. 9429 [Steve Henson] 9430 9431 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9432 [Ulf M�ller] 9433 9434 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9435 8 of keying material. Merlin has also confirmed interop with this fix 9436 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9437 [Merlin Hughes <merlin@baltimore.ie>] 9438 9439 *) Fix lots of warnings. 9440 [Richard Levitte <levitte@stacken.kth.se>] 9441 9442 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9443 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9444 [Richard Levitte <levitte@stacken.kth.se>] 9445 9446 *) Fix problems with sizeof(long) == 8. 9447 [Andy Polyakov <appro@fy.chalmers.se>] 9448 9449 *) Change functions to ANSI C. 9450 [Ulf M�ller] 9451 9452 *) Fix typos in error codes. 9453 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9454 9455 *) Remove defunct assembler files from Configure. 9456 [Ulf M�ller] 9457 9458 *) SPARC v8 assembler BIGNUM implementation. 9459 [Andy Polyakov <appro@fy.chalmers.se>] 9460 9461 *) Support for Certificate Policies extension: both print and set. 9462 Various additions to support the r2i method this uses. 9463 [Steve Henson] 9464 9465 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9466 return a const string when you are expecting an allocated buffer. 9467 [Ben Laurie] 9468 9469 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9470 types DirectoryString and DisplayText. 9471 [Steve Henson] 9472 9473 *) Add code to allow r2i extensions to access the configuration database, 9474 add an LHASH database driver and add several ctx helper functions. 9475 [Steve Henson] 9476 9477 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9478 fail when they extended the size of a BIGNUM. 9479 [Steve Henson] 9480 9481 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9482 support typesafe stack. 9483 [Steve Henson] 9484 9485 *) Fix typo in SSL_[gs]et_options(). 9486 [Nils Frostberg <nils@medcom.se>] 9487 9488 *) Delete various functions and files that belonged to the (now obsolete) 9489 old X509V3 handling code. 9490 [Steve Henson] 9491 9492 *) New Configure option "rsaref". 9493 [Ulf M�ller] 9494 9495 *) Don't auto-generate pem.h. 9496 [Bodo Moeller] 9497 9498 *) Introduce type-safe ASN.1 SETs. 9499 [Ben Laurie] 9500 9501 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9502 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9503 9504 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9505 that links with OpenSSL (well at least cause lots of warnings), but fear 9506 not: the conversion is trivial, and it eliminates loads of evil casts. A 9507 few STACKed things have been converted already. Feel free to convert more. 9508 In the fullness of time, I'll do away with the STACK type altogether. 9509 [Ben Laurie] 9510 9511 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9512 specified in <certfile> by updating the entry in the index.txt file. 9513 This way one no longer has to edit the index.txt file manually for 9514 revoking a certificate. The -revoke option does the gory details now. 9515 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9516 9517 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9518 `-text' option at all and this way the `-noout -text' combination was 9519 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9520 [Ralf S. Engelschall] 9521 9522 *) Make sure a corresponding plain text error message exists for the 9523 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9524 verify callback function determined that a certificate was revoked. 9525 [Ralf S. Engelschall] 9526 9527 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9528 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9529 all available cipers including rc5, which was forgotten until now. 9530 In order to let the testing shell script know which algorithms 9531 are available, a new (up to now undocumented) command 9532 "openssl list-cipher-commands" is used. 9533 [Bodo Moeller] 9534 9535 *) Bugfix: s_client occasionally would sleep in select() when 9536 it should have checked SSL_pending() first. 9537 [Bodo Moeller] 9538 9539 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9540 the raw DSA values prior to ASN.1 encoding. 9541 [Ulf M�ller] 9542 9543 *) Tweaks to Configure 9544 [Niels Poppe <niels@netbox.org>] 9545 9546 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9547 yet... 9548 [Steve Henson] 9549 9550 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9551 [Ulf M�ller] 9552 9553 *) New config option to avoid instructions that are illegal on the 80386. 9554 The default code is faster, but requires at least a 486. 9555 [Ulf M�ller] 9556 9557 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9558 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9559 same as SSL2_VERSION anyway. 9560 [Bodo Moeller] 9561 9562 *) New "-showcerts" option for s_client. 9563 [Bodo Moeller] 9564 9565 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9566 application. Various cleanups and fixes. 9567 [Steve Henson] 9568 9569 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9570 modify error routines to work internally. Add error codes and PBE init 9571 to library startup routines. 9572 [Steve Henson] 9573 9574 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9575 packing functions to asn1 and evp. Changed function names and error 9576 codes along the way. 9577 [Steve Henson] 9578 9579 *) PKCS12 integration: and so it begins... First of several patches to 9580 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9581 objects to objects.h 9582 [Steve Henson] 9583 9584 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9585 and display support for Thawte strong extranet extension. 9586 [Steve Henson] 9587 9588 *) Add LinuxPPC support. 9589 [Jeff Dubrule <igor@pobox.org>] 9590 9591 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9592 bn_div_words in alpha.s. 9593 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9594 9595 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9596 OAEP isn't supported when OpenSSL is built with RSAref. 9597 [Ulf Moeller <ulf@fitug.de>] 9598 9599 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9600 so they no longer are missing under -DNOPROTO. 9601 [Soren S. Jorvang <soren@t.dk>] 9602 9603 9604 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9605 9606 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9607 doesn't work when the session is reused. Coming soon! 9608 [Ben Laurie] 9609 9610 *) Fix a security hole, that allows sessions to be reused in the wrong 9611 context thus bypassing client cert protection! All software that uses 9612 client certs and session caches in multiple contexts NEEDS PATCHING to 9613 allow session reuse! A fuller solution is in the works. 9614 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9615 9616 *) Some more source tree cleanups (removed obsolete files 9617 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9618 permission on "config" script to be executable) and a fix for the INSTALL 9619 document. 9620 [Ulf Moeller <ulf@fitug.de>] 9621 9622 *) Remove some legacy and erroneous uses of malloc, free instead of 9623 Malloc, Free. 9624 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9625 9626 *) Make rsa_oaep_test return non-zero on error. 9627 [Ulf Moeller <ulf@fitug.de>] 9628 9629 *) Add support for native Solaris shared libraries. Configure 9630 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9631 if someone would make that last step automatic. 9632 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9633 9634 *) ctx_size was not built with the right compiler during "make links". Fixed. 9635 [Ben Laurie] 9636 9637 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9638 except NULL ciphers". This means the default cipher list will no longer 9639 enable NULL ciphers. They need to be specifically enabled e.g. with 9640 the string "DEFAULT:eNULL". 9641 [Steve Henson] 9642 9643 *) Fix to RSA private encryption routines: if p < q then it would 9644 occasionally produce an invalid result. This will only happen with 9645 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9646 [Steve Henson] 9647 9648 *) Be less restrictive and allow also `perl util/perlpath.pl 9649 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9650 because this way one can also use an interpreter named `perl5' (which is 9651 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9652 installed as `perl'). 9653 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9654 9655 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9656 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9657 9658 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9659 advapi32.lib to Win32 build and change the pem test comparision 9660 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9661 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9662 and crypto/des/ede_cbcm_enc.c. 9663 [Steve Henson] 9664 9665 *) DES quad checksum was broken on big-endian architectures. Fixed. 9666 [Ben Laurie] 9667 9668 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9669 Win32 test batch file so it (might) work again. The Win32 test batch file 9670 is horrible: I feel ill.... 9671 [Steve Henson] 9672 9673 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9674 in e_os.h. Audit of header files to check ANSI and non ANSI 9675 sections: 10 functions were absent from non ANSI section and not exported 9676 from Windows DLLs. Fixed up libeay.num for new functions. 9677 [Steve Henson] 9678 9679 *) Make `openssl version' output lines consistent. 9680 [Ralf S. Engelschall] 9681 9682 *) Fix Win32 symbol export lists for BIO functions: Added 9683 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9684 to ms/libeay{16,32}.def. 9685 [Ralf S. Engelschall] 9686 9687 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9688 fine under Unix and passes some trivial tests I've now added. But the 9689 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9690 added to make sure no one expects that this stuff really works in the 9691 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9692 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9693 openssl_bio.xs. 9694 [Ralf S. Engelschall] 9695 9696 *) Fix the generation of two part addresses in perl. 9697 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9698 9699 *) Add config entry for Linux on MIPS. 9700 [John Tobey <jtobey@channel1.com>] 9701 9702 *) Make links whenever Configure is run, unless we are on Windoze. 9703 [Ben Laurie] 9704 9705 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9706 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9707 in CRLs. 9708 [Steve Henson] 9709 9710 *) Add a useful kludge to allow package maintainers to specify compiler and 9711 other platforms details on the command line without having to patch the 9712 Configure script everytime: One now can use ``perl Configure 9713 <id>:<details>'', i.e. platform ids are allowed to have details appended 9714 to them (seperated by colons). This is treated as there would be a static 9715 pre-configured entry in Configure's %table under key <id> with value 9716 <details> and ``perl Configure <id>'' is called. So, when you want to 9717 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9718 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9719 now, which overrides the FreeBSD-elf entry on-the-fly. 9720 [Ralf S. Engelschall] 9721 9722 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9723 [Ben Laurie] 9724 9725 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9726 on the `perl Configure ...' command line. This way one can compile 9727 OpenSSL libraries with Position Independent Code (PIC) which is needed 9728 for linking it into DSOs. 9729 [Ralf S. Engelschall] 9730 9731 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9732 Fixed. 9733 [Ben Laurie] 9734 9735 *) Cleaned up the LICENSE document: The official contact for any license 9736 questions now is the OpenSSL core team under openssl-core@openssl.org. 9737 And add a paragraph about the dual-license situation to make sure people 9738 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9739 to the OpenSSL toolkit. 9740 [Ralf S. Engelschall] 9741 9742 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9743 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9744 Additonally cleaned up the `make links' target: Remove unnecessary 9745 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9746 to speed processing and no longer clutter the display with confusing 9747 stuff. Instead only the actually done links are displayed. 9748 [Ralf S. Engelschall] 9749 9750 *) Permit null encryption ciphersuites, used for authentication only. It used 9751 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9752 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9753 encryption. 9754 [Ben Laurie] 9755 9756 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9757 signed attributes when verifying signatures (this would break them), 9758 the detached data encoding was wrong and public keys obtained using 9759 X509_get_pubkey() weren't freed. 9760 [Steve Henson] 9761 9762 *) Add text documentation for the BUFFER functions. Also added a work around 9763 to a Win95 console bug. This was triggered by the password read stuff: the 9764 last character typed gets carried over to the next fread(). If you were 9765 generating a new cert request using 'req' for example then the last 9766 character of the passphrase would be CR which would then enter the first 9767 field as blank. 9768 [Steve Henson] 9769 9770 *) Added the new `Includes OpenSSL Cryptography Software' button as 9771 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9772 button and can be used by applications based on OpenSSL to show the 9773 relationship to the OpenSSL project. 9774 [Ralf S. Engelschall] 9775 9776 *) Remove confusing variables in function signatures in files 9777 ssl/ssl_lib.c and ssl/ssl.h. 9778 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9779 9780 *) Don't install bss_file.c under PREFIX/include/ 9781 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9782 9783 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9784 functions that return function pointers and has support for NT specific 9785 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9786 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9787 unsigned to signed types: this was killing the Win32 compile. 9788 [Steve Henson] 9789 9790 *) Add new certificate file to stack functions, 9791 SSL_add_dir_cert_subjects_to_stack() and 9792 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9793 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9794 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9795 This means that Apache-SSL and similar packages don't have to mess around 9796 to add as many CAs as they want to the preferred list. 9797 [Ben Laurie] 9798 9799 *) Experiment with doxygen documentation. Currently only partially applied to 9800 ssl/ssl_lib.c. 9801 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9802 openssl.doxy as the configuration file. 9803 [Ben Laurie] 9804 9805 *) Get rid of remaining C++-style comments which strict C compilers hate. 9806 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9807 9808 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9809 compiled in by default: it has problems with large keys. 9810 [Steve Henson] 9811 9812 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9813 DH private keys and/or callback functions which directly correspond to 9814 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9815 is needed for applications which have to configure certificates on a 9816 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9817 (e.g. s_server). 9818 For the RSA certificate situation is makes no difference, but 9819 for the DSA certificate situation this fixes the "no shared cipher" 9820 problem where the OpenSSL cipher selection procedure failed because the 9821 temporary keys were not overtaken from the context and the API provided 9822 no way to reconfigure them. 9823 The new functions now let applications reconfigure the stuff and they 9824 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9825 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9826 non-public-API function ssl_cert_instantiate() is used as a helper 9827 function and also to reduce code redundancy inside ssl_rsa.c. 9828 [Ralf S. Engelschall] 9829 9830 *) Move s_server -dcert and -dkey options out of the undocumented feature 9831 area because they are useful for the DSA situation and should be 9832 recognized by the users. 9833 [Ralf S. Engelschall] 9834 9835 *) Fix the cipher decision scheme for export ciphers: the export bits are 9836 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9837 SSL_EXP_MASK. So, the original variable has to be used instead of the 9838 already masked variable. 9839 [Richard Levitte <levitte@stacken.kth.se>] 9840 9841 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9842 [Richard Levitte <levitte@stacken.kth.se>] 9843 9844 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9845 from `int' to `unsigned int' because it's a length and initialized by 9846 EVP_DigestFinal() which expects an `unsigned int *'. 9847 [Richard Levitte <levitte@stacken.kth.se>] 9848 9849 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9850 script. Instead use the usual Shell->Perl transition trick. 9851 [Ralf S. Engelschall] 9852 9853 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9854 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9855 -noout -modulus' as it's already the case for `openssl rsa -noout 9856 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9857 currently the public key is printed (a decision which was already done by 9858 `openssl dsa -modulus' in the past) which serves a similar purpose. 9859 Additionally the NO_RSA no longer completely removes the whole -modulus 9860 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9861 now, too. 9862 [Ralf S. Engelschall] 9863 9864 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9865 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9866 [Arne Ansper <arne@ats.cyber.ee>] 9867 9868 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9869 to be added. Now both 'req' and 'ca' can use new objects defined in the 9870 config file. 9871 [Steve Henson] 9872 9873 *) Add cool BIO that does syslog (or event log on NT). 9874 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9875 9876 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9877 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9878 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9879 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9880 [Ben Laurie] 9881 9882 *) Add preliminary config info for new extension code. 9883 [Steve Henson] 9884 9885 *) Make RSA_NO_PADDING really use no padding. 9886 [Ulf Moeller <ulf@fitug.de>] 9887 9888 *) Generate errors when private/public key check is done. 9889 [Ben Laurie] 9890 9891 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9892 for some CRL extensions and new objects added. 9893 [Steve Henson] 9894 9895 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9896 key usage extension and fuller support for authority key id. 9897 [Steve Henson] 9898 9899 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9900 padding method for RSA, which is recommended for new applications in PKCS 9901 #1 v2.0 (RFC 2437, October 1998). 9902 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9903 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9904 against Bleichbacher's attack on RSA. 9905 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9906 Ben Laurie] 9907 9908 *) Updates to the new SSL compression code 9909 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9910 9911 *) Fix so that the version number in the master secret, when passed 9912 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9913 (because the server will not accept higher), that the version number 9914 is 0x03,0x01, not 0x03,0x00 9915 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9916 9917 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9918 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9919 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9920 [Steve Henson] 9921 9922 *) Support for RAW extensions where an arbitrary extension can be 9923 created by including its DER encoding. See apps/openssl.cnf for 9924 an example. 9925 [Steve Henson] 9926 9927 *) Make sure latest Perl versions don't interpret some generated C array 9928 code as Perl array code in the crypto/err/err_genc.pl script. 9929 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9930 9931 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9932 not many people have the assembler. Various Win32 compilation fixes and 9933 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9934 build instructions. 9935 [Steve Henson] 9936 9937 *) Modify configure script 'Configure' to automatically create crypto/date.h 9938 file under Win32 and also build pem.h from pem.org. New script 9939 util/mkfiles.pl to create the MINFO file on environments that can't do a 9940 'make files': perl util/mkfiles.pl >MINFO should work. 9941 [Steve Henson] 9942 9943 *) Major rework of DES function declarations, in the pursuit of correctness 9944 and purity. As a result, many evil casts evaporated, and some weirdness, 9945 too. You may find this causes warnings in your code. Zapping your evil 9946 casts will probably fix them. Mostly. 9947 [Ben Laurie] 9948 9949 *) Fix for a typo in asn1.h. Bug fix to object creation script 9950 obj_dat.pl. It considered a zero in an object definition to mean 9951 "end of object": none of the objects in objects.h have any zeros 9952 so it wasn't spotted. 9953 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9954 9955 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9956 Masking (CBCM). In the absence of test vectors, the best I have been able 9957 to do is check that the decrypt undoes the encrypt, so far. Send me test 9958 vectors if you have them. 9959 [Ben Laurie] 9960 9961 *) Correct calculation of key length for export ciphers (too much space was 9962 allocated for null ciphers). This has not been tested! 9963 [Ben Laurie] 9964 9965 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9966 message is now correct (it understands "crypto" and "ssl" on its 9967 command line). There is also now an "update" option. This will update 9968 the util/ssleay.num and util/libeay.num files with any new functions. 9969 If you do a: 9970 perl util/mkdef.pl crypto ssl update 9971 it will update them. 9972 [Steve Henson] 9973 9974 *) Overhauled the Perl interface (perl/*): 9975 - ported BN stuff to OpenSSL's different BN library 9976 - made the perl/ source tree CVS-aware 9977 - renamed the package from SSLeay to OpenSSL (the files still contain 9978 their history because I've copied them in the repository) 9979 - removed obsolete files (the test scripts will be replaced 9980 by better Test::Harness variants in the future) 9981 [Ralf S. Engelschall] 9982 9983 *) First cut for a very conservative source tree cleanup: 9984 1. merge various obsolete readme texts into doc/ssleay.txt 9985 where we collect the old documents and readme texts. 9986 2. remove the first part of files where I'm already sure that we no 9987 longer need them because of three reasons: either they are just temporary 9988 files which were left by Eric or they are preserved original files where 9989 I've verified that the diff is also available in the CVS via "cvs diff 9990 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9991 the crypto/md/ stuff). 9992 [Ralf S. Engelschall] 9993 9994 *) More extension code. Incomplete support for subject and issuer alt 9995 name, issuer and authority key id. Change the i2v function parameters 9996 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9997 what that's for :-) Fix to ASN1 macro which messed up 9998 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9999 [Steve Henson] 10000 10001 *) Preliminary support for ENUMERATED type. This is largely copied from the 10002 INTEGER code. 10003 [Steve Henson] 10004 10005 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 10006 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10007 10008 *) Make sure `make rehash' target really finds the `openssl' program. 10009 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10010 10011 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 10012 like to hear about it if this slows down other processors. 10013 [Ben Laurie] 10014 10015 *) Add CygWin32 platform information to Configure script. 10016 [Alan Batie <batie@aahz.jf.intel.com>] 10017 10018 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 10019 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 10020 10021 *) New program nseq to manipulate netscape certificate sequences 10022 [Steve Henson] 10023 10024 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 10025 few typos. 10026 [Steve Henson] 10027 10028 *) Fixes to BN code. Previously the default was to define BN_RECURSION 10029 but the BN code had some problems that would cause failures when 10030 doing certificate verification and some other functions. 10031 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10032 10033 *) Add ASN1 and PEM code to support netscape certificate sequences. 10034 [Steve Henson] 10035 10036 *) Add ASN1 and PEM code to support netscape certificate sequences. 10037 [Steve Henson] 10038 10039 *) Add several PKIX and private extended key usage OIDs. 10040 [Steve Henson] 10041 10042 *) Modify the 'ca' program to handle the new extension code. Modify 10043 openssl.cnf for new extension format, add comments. 10044 [Steve Henson] 10045 10046 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 10047 and add a sample to openssl.cnf so req -x509 now adds appropriate 10048 CA extensions. 10049 [Steve Henson] 10050 10051 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 10052 error code, add initial support to X509_print() and x509 application. 10053 [Steve Henson] 10054 10055 *) Takes a deep breath and start addding X509 V3 extension support code. Add 10056 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 10057 stuff is currently isolated and isn't even compiled yet. 10058 [Steve Henson] 10059 10060 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 10061 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 10062 Removed the versions check from X509 routines when loading extensions: 10063 this allows certain broken certificates that don't set the version 10064 properly to be processed. 10065 [Steve Henson] 10066 10067 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 10068 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 10069 can still be regenerated with "make depend". 10070 [Ben Laurie] 10071 10072 *) Spelling mistake in C version of CAST-128. 10073 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 10074 10075 *) Changes to the error generation code. The perl script err-code.pl 10076 now reads in the old error codes and retains the old numbers, only 10077 adding new ones if necessary. It also only changes the .err files if new 10078 codes are added. The makefiles have been modified to only insert errors 10079 when needed (to avoid needlessly modifying header files). This is done 10080 by only inserting errors if the .err file is newer than the auto generated 10081 C file. To rebuild all the error codes from scratch (the old behaviour) 10082 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 10083 or delete all the .err files. 10084 [Steve Henson] 10085 10086 *) CAST-128 was incorrectly implemented for short keys. The C version has 10087 been fixed, but is untested. The assembler versions are also fixed, but 10088 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 10089 to regenerate it if needed. 10090 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 10091 Hagino <itojun@kame.net>] 10092 10093 *) File was opened incorrectly in randfile.c. 10094 [Ulf M�ller <ulf@fitug.de>] 10095 10096 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 10097 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 10098 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 10099 al: it's just almost always a UTCTime. Note this patch adds new error 10100 codes so do a "make errors" if there are problems. 10101 [Steve Henson] 10102 10103 *) Correct Linux 1 recognition in config. 10104 [Ulf M�ller <ulf@fitug.de>] 10105 10106 *) Remove pointless MD5 hash when using DSA keys in ca. 10107 [Anonymous <nobody@replay.com>] 10108 10109 *) Generate an error if given an empty string as a cert directory. Also 10110 generate an error if handed NULL (previously returned 0 to indicate an 10111 error, but didn't set one). 10112 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 10113 10114 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 10115 [Ben Laurie] 10116 10117 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 10118 parameters. This was causing a warning which killed off the Win32 compile. 10119 [Steve Henson] 10120 10121 *) Remove C++ style comments from crypto/bn/bn_local.h. 10122 [Neil Costigan <neil.costigan@celocom.com>] 10123 10124 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 10125 based on a text string, looking up short and long names and finally 10126 "dot" format. The "dot" format stuff didn't work. Added new function 10127 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 10128 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 10129 OID is not part of the table. 10130 [Steve Henson] 10131 10132 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 10133 X509_LOOKUP_by_alias(). 10134 [Ben Laurie] 10135 10136 *) Sort openssl functions by name. 10137 [Ben Laurie] 10138 10139 *) Get the gendsa program working (hopefully) and add it to app list. Remove 10140 encryption from sample DSA keys (in case anyone is interested the password 10141 was "1234"). 10142 [Steve Henson] 10143 10144 *) Make _all_ *_free functions accept a NULL pointer. 10145 [Frans Heymans <fheymans@isaserver.be>] 10146 10147 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 10148 NULL pointers. 10149 [Anonymous <nobody@replay.com>] 10150 10151 *) s_server should send the CAfile as acceptable CAs, not its own cert. 10152 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10153 10154 *) Don't blow it for numeric -newkey arguments to apps/req. 10155 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10156 10157 *) Temp key "for export" tests were wrong in s3_srvr.c. 10158 [Anonymous <nobody@replay.com>] 10159 10160 *) Add prototype for temp key callback functions 10161 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10162 [Ben Laurie] 10163 10164 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10165 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10166 [Steve Henson] 10167 10168 *) X509_name_add_entry() freed the wrong thing after an error. 10169 [Arne Ansper <arne@ats.cyber.ee>] 10170 10171 *) rsa_eay.c would attempt to free a NULL context. 10172 [Arne Ansper <arne@ats.cyber.ee>] 10173 10174 *) BIO_s_socket() had a broken should_retry() on Windoze. 10175 [Arne Ansper <arne@ats.cyber.ee>] 10176 10177 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10178 [Arne Ansper <arne@ats.cyber.ee>] 10179 10180 *) Make sure the already existing X509_STORE->depth variable is initialized 10181 in X509_STORE_new(), but document the fact that this variable is still 10182 unused in the certificate verification process. 10183 [Ralf S. Engelschall] 10184 10185 *) Fix the various library and apps files to free up pkeys obtained from 10186 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10187 [Steve Henson] 10188 10189 *) Fix reference counting in X509_PUBKEY_get(). This makes 10190 demos/maurice/example2.c work, amongst others, probably. 10191 [Steve Henson and Ben Laurie] 10192 10193 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10194 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10195 are no longer created. This way we have a single and consistent command 10196 line interface `openssl <command>', similar to `cvs <command>'. 10197 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10198 10199 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10200 BIT STRING wrapper always have zero unused bits. 10201 [Steve Henson] 10202 10203 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10204 [Steve Henson] 10205 10206 *) Make the top-level INSTALL documentation easier to understand. 10207 [Paul Sutton] 10208 10209 *) Makefiles updated to exit if an error occurs in a sub-directory 10210 make (including if user presses ^C) [Paul Sutton] 10211 10212 *) Make Montgomery context stuff explicit in RSA data structure. 10213 [Ben Laurie] 10214 10215 *) Fix build order of pem and err to allow for generated pem.h. 10216 [Ben Laurie] 10217 10218 *) Fix renumbering bug in X509_NAME_delete_entry(). 10219 [Ben Laurie] 10220 10221 *) Enhanced the err-ins.pl script so it makes the error library number 10222 global and can add a library name. This is needed for external ASN1 and 10223 other error libraries. 10224 [Steve Henson] 10225 10226 *) Fixed sk_insert which never worked properly. 10227 [Steve Henson] 10228 10229 *) Fix ASN1 macros so they can handle indefinite length construted 10230 EXPLICIT tags. Some non standard certificates use these: they can now 10231 be read in. 10232 [Steve Henson] 10233 10234 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10235 into a single doc/ssleay.txt bundle. This way the information is still 10236 preserved but no longer messes up this directory. Now it's new room for 10237 the new set of documenation files. 10238 [Ralf S. Engelschall] 10239 10240 *) SETs were incorrectly DER encoded. This was a major pain, because they 10241 shared code with SEQUENCEs, which aren't coded the same. This means that 10242 almost everything to do with SETs or SEQUENCEs has either changed name or 10243 number of arguments. 10244 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10245 10246 *) Fix test data to work with the above. 10247 [Ben Laurie] 10248 10249 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10250 was already fixed by Eric for 0.9.1 it seems. 10251 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10252 10253 *) Autodetect FreeBSD3. 10254 [Ben Laurie] 10255 10256 *) Fix various bugs in Configure. This affects the following platforms: 10257 nextstep 10258 ncr-scde 10259 unixware-2.0 10260 unixware-2.0-pentium 10261 sco5-cc. 10262 [Ben Laurie] 10263 10264 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10265 before they are needed. 10266 [Ben Laurie] 10267 10268 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10269 [Ben Laurie] 10270 10271 10272 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10273 10274 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10275 changed SSLeay to OpenSSL in version strings. 10276 [Ralf S. Engelschall] 10277 10278 *) Some fixups to the top-level documents. 10279 [Paul Sutton] 10280 10281 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10282 because the symlink to include/ was missing. 10283 [Ralf S. Engelschall] 10284 10285 *) Incorporated the popular no-RSA/DSA-only patches 10286 which allow to compile a RSA-free SSLeay. 10287 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10288 10289 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10290 when "ssleay" is still not found. 10291 [Ralf S. Engelschall] 10292 10293 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10294 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10295 10296 *) Updated the README file. 10297 [Ralf S. Engelschall] 10298 10299 *) Added various .cvsignore files in the CVS repository subdirs 10300 to make a "cvs update" really silent. 10301 [Ralf S. Engelschall] 10302 10303 *) Recompiled the error-definition header files and added 10304 missing symbols to the Win32 linker tables. 10305 [Ralf S. Engelschall] 10306 10307 *) Cleaned up the top-level documents; 10308 o new files: CHANGES and LICENSE 10309 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10310 o merged COPYRIGHT into LICENSE 10311 o removed obsolete TODO file 10312 o renamed MICROSOFT to INSTALL.W32 10313 [Ralf S. Engelschall] 10314 10315 *) Removed dummy files from the 0.9.1b source tree: 10316 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10317 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10318 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10319 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10320 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10321 [Ralf S. Engelschall] 10322 10323 *) Added various platform portability fixes. 10324 [Mark J. Cox] 10325 10326 *) The Genesis of the OpenSSL rpject: 10327 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10328 Young and Tim J. Hudson created while they were working for C2Net until 10329 summer 1998. 10330 [The OpenSSL Project] 10331 10332 10333 Changes between 0.9.0b and 0.9.1b [not released] 10334 10335 *) Updated a few CA certificates under certs/ 10336 [Eric A. Young] 10337 10338 *) Changed some BIGNUM api stuff. 10339 [Eric A. Young] 10340 10341 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10342 DGUX x86, Linux Alpha, etc. 10343 [Eric A. Young] 10344 10345 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10346 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10347 available). 10348 [Eric A. Young] 10349 10350 *) Add -strparse option to asn1pars program which parses nested 10351 binary structures 10352 [Dr Stephen Henson <shenson@bigfoot.com>] 10353 10354 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10355 [Eric A. Young] 10356 10357 *) DSA fix for "ca" program. 10358 [Eric A. Young] 10359 10360 *) Added "-genkey" option to "dsaparam" program. 10361 [Eric A. Young] 10362 10363 *) Added RIPE MD160 (rmd160) message digest. 10364 [Eric A. Young] 10365 10366 *) Added -a (all) option to "ssleay version" command. 10367 [Eric A. Young] 10368 10369 *) Added PLATFORM define which is the id given to Configure. 10370 [Eric A. Young] 10371 10372 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10373 [Eric A. Young] 10374 10375 *) Extended the ASN.1 parser routines. 10376 [Eric A. Young] 10377 10378 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10379 [Eric A. Young] 10380 10381 *) Added a BN_CTX to the BN library. 10382 [Eric A. Young] 10383 10384 *) Fixed the weak key values in DES library 10385 [Eric A. Young] 10386 10387 *) Changed API in EVP library for cipher aliases. 10388 [Eric A. Young] 10389 10390 *) Added support for RC2/64bit cipher. 10391 [Eric A. Young] 10392 10393 *) Converted the lhash library to the crypto/mem.c functions. 10394 [Eric A. Young] 10395 10396 *) Added more recognized ASN.1 object ids. 10397 [Eric A. Young] 10398 10399 *) Added more RSA padding checks for SSL/TLS. 10400 [Eric A. Young] 10401 10402 *) Added BIO proxy/filter functionality. 10403 [Eric A. Young] 10404 10405 *) Added extra_certs to SSL_CTX which can be used 10406 send extra CA certificates to the client in the CA cert chain sending 10407 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10408 [Eric A. Young] 10409 10410 *) Now Fortezza is denied in the authentication phase because 10411 this is key exchange mechanism is not supported by SSLeay at all. 10412 [Eric A. Young] 10413 10414 *) Additional PKCS1 checks. 10415 [Eric A. Young] 10416 10417 *) Support the string "TLSv1" for all TLS v1 ciphers. 10418 [Eric A. Young] 10419 10420 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10421 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10422 [Eric A. Young] 10423 10424 *) Fixed a few memory leaks. 10425 [Eric A. Young] 10426 10427 *) Fixed various code and comment typos. 10428 [Eric A. Young] 10429 10430 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10431 bytes sent in the client random. 10432 [Edward Bishop <ebishop@spyglass.com>] 10433 10434