CHANGES revision 280304
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 6 7 *) Segmentation fault in ASN1_TYPE_cmp fix 8 9 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 10 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 11 certificate signature algorithm consistency this can be used to crash any 12 certificate verification operation and exploited in a DoS attack. Any 13 application which performs certificate verification is vulnerable including 14 OpenSSL clients and servers which enable client authentication. 15 (CVE-2015-0286) 16 [Stephen Henson] 17 18 *) ASN.1 structure reuse memory corruption fix 19 20 Reusing a structure in ASN.1 parsing may allow an attacker to cause 21 memory corruption via an invalid write. Such reuse is and has been 22 strongly discouraged and is believed to be rare. 23 24 Applications that parse structures containing CHOICE or ANY DEFINED BY 25 components may be affected. Certificate parsing (d2i_X509 and related 26 functions) are however not affected. OpenSSL clients and servers are 27 not affected. 28 (CVE-2015-0287) 29 [Stephen Henson] 30 31 *) PKCS7 NULL pointer dereferences fix 32 33 The PKCS#7 parsing code does not handle missing outer ContentInfo 34 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 35 missing content and trigger a NULL pointer dereference on parsing. 36 37 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 38 otherwise parse PKCS#7 structures from untrusted sources are 39 affected. OpenSSL clients and servers are not affected. 40 41 This issue was reported to OpenSSL by Michal Zalewski (Google). 42 (CVE-2015-0289) 43 [Emilia K�sper] 44 45 *) DoS via reachable assert in SSLv2 servers fix 46 47 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 48 servers that both support SSLv2 and enable export cipher suites by sending 49 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 50 51 This issue was discovered by Sean Burford (Google) and Emilia K�sper 52 (OpenSSL development team). 53 (CVE-2015-0293) 54 [Emilia K�sper] 55 56 *) Use After Free following d2i_ECPrivatekey error fix 57 58 A malformed EC private key file consumed via the d2i_ECPrivateKey function 59 could cause a use after free condition. This, in turn, could cause a double 60 free in several private key parsing functions (such as d2i_PrivateKey 61 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 62 for applications that receive EC private keys from untrusted 63 sources. This scenario is considered rare. 64 65 This issue was discovered by the BoringSSL project and fixed in their 66 commit 517073cd4b. 67 (CVE-2015-0209) 68 [Matt Caswell] 69 70 *) X509_to_X509_REQ NULL pointer deref fix 71 72 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 73 the certificate key is invalid. This function is rarely used in practice. 74 75 This issue was discovered by Brian Carpenter. 76 (CVE-2015-0288) 77 [Stephen Henson] 78 79 *) Removed the export ciphers from the DEFAULT ciphers 80 [Kurt Roeckx] 81 82 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 83 84 *) Build fixes for the Windows and OpenVMS platforms 85 [Matt Caswell and Richard Levitte] 86 87 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 88 89 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 90 message can cause a segmentation fault in OpenSSL due to a NULL pointer 91 dereference. This could lead to a Denial Of Service attack. Thanks to 92 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 93 (CVE-2014-3571) 94 [Steve Henson] 95 96 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 97 dtls1_buffer_record function under certain conditions. In particular this 98 could occur if an attacker sent repeated DTLS records with the same 99 sequence number but for the next epoch. The memory leak could be exploited 100 by an attacker in a Denial of Service attack through memory exhaustion. 101 Thanks to Chris Mueller for reporting this issue. 102 (CVE-2015-0206) 103 [Matt Caswell] 104 105 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 106 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 107 method would be set to NULL which could later result in a NULL pointer 108 dereference. Thanks to Frank Schmirler for reporting this issue. 109 (CVE-2014-3569) 110 [Kurt Roeckx] 111 112 *) Abort handshake if server key exchange message is omitted for ephemeral 113 ECDH ciphersuites. 114 115 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 116 reporting this issue. 117 (CVE-2014-3572) 118 [Steve Henson] 119 120 *) Remove non-export ephemeral RSA code on client and server. This code 121 violated the TLS standard by allowing the use of temporary RSA keys in 122 non-export ciphersuites and could be used by a server to effectively 123 downgrade the RSA key length used to a value smaller than the server 124 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 125 INRIA or reporting this issue. 126 (CVE-2015-0204) 127 [Steve Henson] 128 129 *) Fixed issue where DH client certificates are accepted without verification. 130 An OpenSSL server will accept a DH certificate for client authentication 131 without the certificate verify message. This effectively allows a client to 132 authenticate without the use of a private key. This only affects servers 133 which trust a client certificate authority which issues certificates 134 containing DH keys: these are extremely rare and hardly ever encountered. 135 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 136 this issue. 137 (CVE-2015-0205) 138 [Steve Henson] 139 140 *) Ensure that the session ID context of an SSL is updated when its 141 SSL_CTX is updated via SSL_set_SSL_CTX. 142 143 The session ID context is typically set from the parent SSL_CTX, 144 and can vary with the CTX. 145 [Adam Langley] 146 147 *) Fix various certificate fingerprint issues. 148 149 By using non-DER or invalid encodings outside the signed portion of a 150 certificate the fingerprint can be changed without breaking the signature. 151 Although no details of the signed portion of the certificate can be changed 152 this can cause problems with some applications: e.g. those using the 153 certificate fingerprint for blacklists. 154 155 1. Reject signatures with non zero unused bits. 156 157 If the BIT STRING containing the signature has non zero unused bits reject 158 the signature. All current signature algorithms require zero unused bits. 159 160 2. Check certificate algorithm consistency. 161 162 Check the AlgorithmIdentifier inside TBS matches the one in the 163 certificate signature. NB: this will result in signature failure 164 errors for some broken certificates. 165 166 Thanks to Konrad Kraszewski from Google for reporting this issue. 167 168 3. Check DSA/ECDSA signatures use DER. 169 170 Reencode DSA/ECDSA signatures and compare with the original received 171 signature. Return an error if there is a mismatch. 172 173 This will reject various cases including garbage after signature 174 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 175 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 176 (negative or with leading zeroes). 177 178 Further analysis was conducted and fixes were developed by Stephen Henson 179 of the OpenSSL core team. 180 181 (CVE-2014-8275) 182 [Steve Henson] 183 184 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 185 results on some platforms, including x86_64. This bug occurs at random 186 with a very low probability, and is not known to be exploitable in any 187 way, though its exact impact is difficult to determine. Thanks to Pieter 188 Wuille (Blockstream) who reported this issue and also suggested an initial 189 fix. Further analysis was conducted by the OpenSSL development team and 190 Adam Langley of Google. The final fix was developed by Andy Polyakov of 191 the OpenSSL core team. 192 (CVE-2014-3570) 193 [Andy Polyakov] 194 195 *) Do not resume sessions on the server if the negotiated protocol 196 version does not match the session's version. Resuming with a different 197 version, while not strictly forbidden by the RFC, is of questionable 198 sanity and breaks all known clients. 199 [David Benjamin, Emilia K�sper] 200 201 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 202 early CCS messages during renegotiation. (Note that because 203 renegotiation is encrypted, this early CCS was not exploitable.) 204 [Emilia K�sper] 205 206 *) Tighten client-side session ticket handling during renegotiation: 207 ensure that the client only accepts a session ticket if the server sends 208 the extension anew in the ServerHello. Previously, a TLS client would 209 reuse the old extension state and thus accept a session ticket if one was 210 announced in the initial ServerHello. 211 212 Similarly, ensure that the client requires a session ticket if one 213 was advertised in the ServerHello. Previously, a TLS client would 214 ignore a missing NewSessionTicket message. 215 [Emilia K�sper] 216 217 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 218 219 *) SRTP Memory Leak. 220 221 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 222 sends a carefully crafted handshake message, to cause OpenSSL to fail 223 to free up to 64k of memory causing a memory leak. This could be 224 exploited in a Denial Of Service attack. This issue affects OpenSSL 225 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 226 whether SRTP is used or configured. Implementations of OpenSSL that 227 have been compiled with OPENSSL_NO_SRTP defined are not affected. 228 229 The fix was developed by the OpenSSL team. 230 (CVE-2014-3513) 231 [OpenSSL team] 232 233 *) Session Ticket Memory Leak. 234 235 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 236 integrity of that ticket is first verified. In the event of a session 237 ticket integrity check failing, OpenSSL will fail to free memory 238 causing a memory leak. By sending a large number of invalid session 239 tickets an attacker could exploit this issue in a Denial Of Service 240 attack. 241 (CVE-2014-3567) 242 [Steve Henson] 243 244 *) Build option no-ssl3 is incomplete. 245 246 When OpenSSL is configured with "no-ssl3" as a build option, servers 247 could accept and complete a SSL 3.0 handshake, and clients could be 248 configured to send them. 249 (CVE-2014-3568) 250 [Akamai and the OpenSSL team] 251 252 *) Add support for TLS_FALLBACK_SCSV. 253 Client applications doing fallback retries should call 254 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 255 (CVE-2014-3566) 256 [Adam Langley, Bodo Moeller] 257 258 *) Add additional DigestInfo checks. 259 260 Reencode DigestInto in DER and check against the original when 261 verifying RSA signature: this will reject any improperly encoded 262 DigestInfo structures. 263 264 Note: this is a precautionary measure and no attacks are currently known. 265 266 [Steve Henson] 267 268 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 269 270 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 271 SRP code can be overrun an internal buffer. Add sanity check that 272 g, A, B < N to SRP code. 273 274 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 275 Group for discovering this issue. 276 (CVE-2014-3512) 277 [Steve Henson] 278 279 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 280 TLS 1.0 instead of higher protocol versions when the ClientHello message 281 is badly fragmented. This allows a man-in-the-middle attacker to force a 282 downgrade to TLS 1.0 even if both the server and the client support a 283 higher protocol version, by modifying the client's TLS records. 284 285 Thanks to David Benjamin and Adam Langley (Google) for discovering and 286 researching this issue. 287 (CVE-2014-3511) 288 [David Benjamin] 289 290 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 291 to a denial of service attack. A malicious server can crash the client 292 with a null pointer dereference (read) by specifying an anonymous (EC)DH 293 ciphersuite and sending carefully crafted handshake messages. 294 295 Thanks to Felix Gr�bert (Google) for discovering and researching this 296 issue. 297 (CVE-2014-3510) 298 [Emilia K�sper] 299 300 *) By sending carefully crafted DTLS packets an attacker could cause openssl 301 to leak memory. This can be exploited through a Denial of Service attack. 302 Thanks to Adam Langley for discovering and researching this issue. 303 (CVE-2014-3507) 304 [Adam Langley] 305 306 *) An attacker can force openssl to consume large amounts of memory whilst 307 processing DTLS handshake messages. This can be exploited through a 308 Denial of Service attack. 309 Thanks to Adam Langley for discovering and researching this issue. 310 (CVE-2014-3506) 311 [Adam Langley] 312 313 *) An attacker can force an error condition which causes openssl to crash 314 whilst processing DTLS packets due to memory being freed twice. This 315 can be exploited through a Denial of Service attack. 316 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 317 this issue. 318 (CVE-2014-3505) 319 [Adam Langley] 320 321 *) If a multithreaded client connects to a malicious server using a resumed 322 session and the server sends an ec point format extension it could write 323 up to 255 bytes to freed memory. 324 325 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 326 issue. 327 (CVE-2014-3509) 328 [Gabor Tyukasz] 329 330 *) A malicious server can crash an OpenSSL client with a null pointer 331 dereference (read) by specifying an SRP ciphersuite even though it was not 332 properly negotiated with the client. This can be exploited through a 333 Denial of Service attack. 334 335 Thanks to Joonas Kuorilehto and Riku Hietam�ki (Codenomicon) for 336 discovering and researching this issue. 337 (CVE-2014-5139) 338 [Steve Henson] 339 340 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 341 X509_name_oneline, X509_name_print_ex et al. to leak some information 342 from the stack. Applications may be affected if they echo pretty printing 343 output to the attacker. 344 345 Thanks to Ivan Fratric (Google) for discovering this issue. 346 (CVE-2014-3508) 347 [Emilia K�sper, and Steve Henson] 348 349 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 350 for corner cases. (Certain input points at infinity could lead to 351 bogus results, with non-infinity inputs mapped to infinity too.) 352 [Bodo Moeller] 353 354 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 355 356 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 357 handshake can force the use of weak keying material in OpenSSL 358 SSL/TLS clients and servers. 359 360 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 361 researching this issue. (CVE-2014-0224) 362 [KIKUCHI Masashi, Steve Henson] 363 364 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 365 OpenSSL DTLS client the code can be made to recurse eventually crashing 366 in a DoS attack. 367 368 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 369 (CVE-2014-0221) 370 [Imre Rad, Steve Henson] 371 372 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 373 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 374 client or server. This is potentially exploitable to run arbitrary 375 code on a vulnerable client or server. 376 377 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 378 [J�ri Aedla, Steve Henson] 379 380 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 381 are subject to a denial of service attack. 382 383 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 384 this issue. (CVE-2014-3470) 385 [Felix Gr�bert, Ivan Fratric, Steve Henson] 386 387 *) Harmonize version and its documentation. -f flag is used to display 388 compilation flags. 389 [mancha <mancha1@zoho.com>] 390 391 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 392 in i2d_ECPrivateKey. 393 [mancha <mancha1@zoho.com>] 394 395 *) Fix some double frees. These are not thought to be exploitable. 396 [mancha <mancha1@zoho.com>] 397 398 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 399 400 *) A missing bounds check in the handling of the TLS heartbeat extension 401 can be used to reveal up to 64k of memory to a connected client or 402 server. 403 404 Thanks for Neel Mehta of Google Security for discovering this bug and to 405 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 406 preparing the fix (CVE-2014-0160) 407 [Adam Langley, Bodo Moeller] 408 409 *) Fix for the attack described in the paper "Recovering OpenSSL 410 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 411 by Yuval Yarom and Naomi Benger. Details can be obtained from: 412 http://eprint.iacr.org/2014/140 413 414 Thanks to Yuval Yarom and Naomi Benger for discovering this 415 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 416 [Yuval Yarom and Naomi Benger] 417 418 *) TLS pad extension: draft-agl-tls-padding-03 419 420 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 421 TLS client Hello record length value would otherwise be > 255 and 422 less that 512 pad with a dummy extension containing zeroes so it 423 is at least 512 bytes long. 424 425 [Adam Langley, Steve Henson] 426 427 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 428 429 *) Fix for TLS record tampering bug. A carefully crafted invalid 430 handshake could crash OpenSSL with a NULL pointer exception. 431 Thanks to Anton Johansson for reporting this issues. 432 (CVE-2013-4353) 433 434 *) Keep original DTLS digest and encryption contexts in retransmission 435 structures so we can use the previous session parameters if they need 436 to be resent. (CVE-2013-6450) 437 [Steve Henson] 438 439 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 440 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 441 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 442 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 443 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 444 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 445 [Rob Stradling, Adam Langley] 446 447 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 448 449 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 450 supporting platforms or when small records were transferred. 451 [Andy Polyakov, Steve Henson] 452 453 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 454 455 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 456 457 This addresses the flaw in CBC record processing discovered by 458 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 459 at: http://www.isg.rhul.ac.uk/tls/ 460 461 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 462 Security Group at Royal Holloway, University of London 463 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 464 Emilia K�sper for the initial patch. 465 (CVE-2013-0169) 466 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 467 468 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 469 ciphersuites which can be exploited in a denial of service attack. 470 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 471 and detecting this bug and to Wolfgang Ettlinger 472 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 473 (CVE-2012-2686) 474 [Adam Langley] 475 476 *) Return an error when checking OCSP signatures when key is NULL. 477 This fixes a DoS attack. (CVE-2013-0166) 478 [Steve Henson] 479 480 *) Make openssl verify return errors. 481 [Chris Palmer <palmer@google.com> and Ben Laurie] 482 483 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 484 the right response is stapled. Also change SSL_get_certificate() 485 so it returns the certificate actually sent. 486 See http://rt.openssl.org/Ticket/Display.html?id=2836. 487 [Rob Stradling <rob.stradling@comodo.com>] 488 489 *) Fix possible deadlock when decoding public keys. 490 [Steve Henson] 491 492 *) Don't use TLS 1.0 record version number in initial client hello 493 if renegotiating. 494 [Steve Henson] 495 496 Changes between 1.0.1b and 1.0.1c [10 May 2012] 497 498 *) Sanity check record length before skipping explicit IV in TLS 499 1.2, 1.1 and DTLS to fix DoS attack. 500 501 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 502 fuzzing as a service testing platform. 503 (CVE-2012-2333) 504 [Steve Henson] 505 506 *) Initialise tkeylen properly when encrypting CMS messages. 507 Thanks to Solar Designer of Openwall for reporting this issue. 508 [Steve Henson] 509 510 *) In FIPS mode don't try to use composite ciphers as they are not 511 approved. 512 [Steve Henson] 513 514 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 515 516 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 517 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 518 mean any application compiled against OpenSSL 1.0.0 headers setting 519 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 520 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 521 0x10000000L Any application which was previously compiled against 522 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 523 will need to be recompiled as a result. Letting be results in 524 inability to disable specifically TLS 1.1 and in client context, 525 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 526 [Steve Henson] 527 528 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 529 disable just protocol X, but all protocols above X *if* there are 530 protocols *below* X still enabled. In more practical terms it means 531 that if application wants to disable TLS1.0 in favor of TLS1.1 and 532 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 533 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 534 client side. 535 [Andy Polyakov] 536 537 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 538 539 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 540 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 541 in CRYPTO_realloc_clean. 542 543 Thanks to Tavis Ormandy, Google Security Team, for discovering this 544 issue and to Adam Langley <agl@chromium.org> for fixing it. 545 (CVE-2012-2110) 546 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 547 548 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 549 [Adam Langley] 550 551 *) Workarounds for some broken servers that "hang" if a client hello 552 record length exceeds 255 bytes. 553 554 1. Do not use record version number > TLS 1.0 in initial client 555 hello: some (but not all) hanging servers will now work. 556 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 557 the number of ciphers sent in the client hello. This should be 558 set to an even number, such as 50, for example by passing: 559 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 560 Most broken servers should now work. 561 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 562 TLS 1.2 client support entirely. 563 [Steve Henson] 564 565 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 566 [Andy Polyakov] 567 568 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 569 570 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 571 STRING form instead of a DigestInfo. 572 [Steve Henson] 573 574 *) The format used for MDC2 RSA signatures is inconsistent between EVP 575 and the RSA_sign/RSA_verify functions. This was made more apparent when 576 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 577 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 578 the correct format in RSA_verify so both forms transparently work. 579 [Steve Henson] 580 581 *) Some servers which support TLS 1.0 can choke if we initially indicate 582 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 583 encrypted premaster secret. As a workaround use the maximum pemitted 584 client version in client hello, this should keep such servers happy 585 and still work with previous versions of OpenSSL. 586 [Steve Henson] 587 588 *) Add support for TLS/DTLS heartbeats. 589 [Robin Seggelmann <seggelmann@fh-muenster.de>] 590 591 *) Add support for SCTP. 592 [Robin Seggelmann <seggelmann@fh-muenster.de>] 593 594 *) Improved PRNG seeding for VOS. 595 [Paul Green <Paul.Green@stratus.com>] 596 597 *) Extensive assembler packs updates, most notably: 598 599 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 600 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 601 - x86_64: bit-sliced AES implementation; 602 - ARM: NEON support, contemporary platforms optimizations; 603 - s390x: z196 support; 604 - *: GHASH and GF(2^m) multiplication implementations; 605 606 [Andy Polyakov] 607 608 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 609 (removal of unnecessary code) 610 [Peter Sylvester <peter.sylvester@edelweb.fr>] 611 612 *) Add TLS key material exporter from RFC 5705. 613 [Eric Rescorla] 614 615 *) Add DTLS-SRTP negotiation from RFC 5764. 616 [Eric Rescorla] 617 618 *) Add Next Protocol Negotiation, 619 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 620 disabled with a no-npn flag to config or Configure. Code donated 621 by Google. 622 [Adam Langley <agl@google.com> and Ben Laurie] 623 624 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 625 NIST-P256, NIST-P521, with constant-time single point multiplication on 626 typical inputs. Compiler support for the nonstandard type __uint128_t is 627 required to use this (present in gcc 4.4 and later, for 64-bit builds). 628 Code made available under Apache License version 2.0. 629 630 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 631 line to include this in your build of OpenSSL, and run "make depend" (or 632 "make update"). This enables the following EC_METHODs: 633 634 EC_GFp_nistp224_method() 635 EC_GFp_nistp256_method() 636 EC_GFp_nistp521_method() 637 638 EC_GROUP_new_by_curve_name() will automatically use these (while 639 EC_GROUP_new_curve_GFp() currently prefers the more flexible 640 implementations). 641 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 642 643 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 644 all platforms. Move ssize_t definition from e_os.h to the public 645 header file e_os2.h as it now appears in public header file cms.h 646 [Steve Henson] 647 648 *) New -sigopt option to the ca, req and x509 utilities. Additional 649 signature parameters can be passed using this option and in 650 particular PSS. 651 [Steve Henson] 652 653 *) Add RSA PSS signing function. This will generate and set the 654 appropriate AlgorithmIdentifiers for PSS based on those in the 655 corresponding EVP_MD_CTX structure. No application support yet. 656 [Steve Henson] 657 658 *) Support for companion algorithm specific ASN1 signing routines. 659 New function ASN1_item_sign_ctx() signs a pre-initialised 660 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 661 the appropriate parameters. 662 [Steve Henson] 663 664 *) Add new algorithm specific ASN1 verification initialisation function 665 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 666 handling will be the same no matter what EVP_PKEY_METHOD is used. 667 Add a PSS handler to support verification of PSS signatures: checked 668 against a number of sample certificates. 669 [Steve Henson] 670 671 *) Add signature printing for PSS. Add PSS OIDs. 672 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 673 674 *) Add algorithm specific signature printing. An individual ASN1 method 675 can now print out signatures instead of the standard hex dump. 676 677 More complex signatures (e.g. PSS) can print out more meaningful 678 information. Include DSA version that prints out the signature 679 parameters r, s. 680 [Steve Henson] 681 682 *) Password based recipient info support for CMS library: implementing 683 RFC3211. 684 [Steve Henson] 685 686 *) Split password based encryption into PBES2 and PBKDF2 functions. This 687 neatly separates the code into cipher and PBE sections and is required 688 for some algorithms that split PBES2 into separate pieces (such as 689 password based CMS). 690 [Steve Henson] 691 692 *) Session-handling fixes: 693 - Fix handling of connections that are resuming with a session ID, 694 but also support Session Tickets. 695 - Fix a bug that suppressed issuing of a new ticket if the client 696 presented a ticket with an expired session. 697 - Try to set the ticket lifetime hint to something reasonable. 698 - Make tickets shorter by excluding irrelevant information. 699 - On the client side, don't ignore renewed tickets. 700 [Adam Langley, Bodo Moeller (Google)] 701 702 *) Fix PSK session representation. 703 [Bodo Moeller] 704 705 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 706 707 This work was sponsored by Intel. 708 [Andy Polyakov] 709 710 *) Add GCM support to TLS library. Some custom code is needed to split 711 the IV between the fixed (from PRF) and explicit (from TLS record) 712 portions. This adds all GCM ciphersuites supported by RFC5288 and 713 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 714 add a special AESGCM string for GCM only. 715 [Steve Henson] 716 717 *) Expand range of ctrls for AES GCM. Permit setting invocation 718 field on decrypt and retrieval of invocation field only on encrypt. 719 [Steve Henson] 720 721 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 722 As required by RFC5289 these ciphersuites cannot be used if for 723 versions of TLS earlier than 1.2. 724 [Steve Henson] 725 726 *) For FIPS capable OpenSSL interpret a NULL default public key method 727 as unset and return the appopriate default but do *not* set the default. 728 This means we can return the appopriate method in applications that 729 swicth between FIPS and non-FIPS modes. 730 [Steve Henson] 731 732 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 733 ENGINE is used then we cannot handle that in the FIPS module so we 734 keep original code iff non-FIPS operations are allowed. 735 [Steve Henson] 736 737 *) Add -attime option to openssl utilities. 738 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 739 740 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 741 [Steve Henson] 742 743 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 744 FIPS EC methods unconditionally for now. 745 [Steve Henson] 746 747 *) New build option no-ec2m to disable characteristic 2 code. 748 [Steve Henson] 749 750 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 751 all cases can be covered as some introduce binary incompatibilities. 752 [Steve Henson] 753 754 *) Redirect RSA operations to FIPS module including keygen, 755 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 756 [Steve Henson] 757 758 *) Add similar low level API blocking to ciphers. 759 [Steve Henson] 760 761 *) Low level digest APIs are not approved in FIPS mode: any attempt 762 to use these will cause a fatal error. Applications that *really* want 763 to use them can use the private_* version instead. 764 [Steve Henson] 765 766 *) Redirect cipher operations to FIPS module for FIPS builds. 767 [Steve Henson] 768 769 *) Redirect digest operations to FIPS module for FIPS builds. 770 [Steve Henson] 771 772 *) Update build system to add "fips" flag which will link in fipscanister.o 773 for static and shared library builds embedding a signature if needed. 774 [Steve Henson] 775 776 *) Output TLS supported curves in preference order instead of numerical 777 order. This is currently hardcoded for the highest order curves first. 778 This should be configurable so applications can judge speed vs strength. 779 [Steve Henson] 780 781 *) Add TLS v1.2 server support for client authentication. 782 [Steve Henson] 783 784 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 785 and enable MD5. 786 [Steve Henson] 787 788 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 789 FIPS modules versions. 790 [Steve Henson] 791 792 *) Add TLS v1.2 client side support for client authentication. Keep cache 793 of handshake records longer as we don't know the hash algorithm to use 794 until after the certificate request message is received. 795 [Steve Henson] 796 797 *) Initial TLS v1.2 client support. Add a default signature algorithms 798 extension including all the algorithms we support. Parse new signature 799 format in client key exchange. Relax some ECC signing restrictions for 800 TLS v1.2 as indicated in RFC5246. 801 [Steve Henson] 802 803 *) Add server support for TLS v1.2 signature algorithms extension. Switch 804 to new signature format when needed using client digest preference. 805 All server ciphersuites should now work correctly in TLS v1.2. No client 806 support yet and no support for client certificates. 807 [Steve Henson] 808 809 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 810 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 811 ciphersuites. At present only RSA key exchange ciphersuites work with 812 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 813 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 814 and version checking. 815 [Steve Henson] 816 817 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 818 with this defined it will not be affected by any changes to ssl internal 819 structures. Add several utility functions to allow openssl application 820 to work with OPENSSL_NO_SSL_INTERN defined. 821 [Steve Henson] 822 823 *) Add SRP support. 824 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 825 826 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 827 [Steve Henson] 828 829 *) Permit abbreviated handshakes when renegotiating using the function 830 SSL_renegotiate_abbreviated(). 831 [Robin Seggelmann <seggelmann@fh-muenster.de>] 832 833 *) Add call to ENGINE_register_all_complete() to 834 ENGINE_load_builtin_engines(), so some implementations get used 835 automatically instead of needing explicit application support. 836 [Steve Henson] 837 838 *) Add support for TLS key exporter as described in RFC5705. 839 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 840 841 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 842 a few changes are required: 843 844 Add SSL_OP_NO_TLSv1_1 flag. 845 Add TLSv1_1 methods. 846 Update version checking logic to handle version 1.1. 847 Add explicit IV handling (ported from DTLS code). 848 Add command line options to s_client/s_server. 849 [Steve Henson] 850 851 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 852 853 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 854 in CMS and PKCS7 code. When RSA decryption fails use a random key for 855 content decryption and always return the same error. Note: this attack 856 needs on average 2^20 messages so it only affects automated senders. The 857 old behaviour can be reenabled in the CMS code by setting the 858 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 859 an MMA defence is not necessary. 860 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 861 this issue. (CVE-2012-0884) 862 [Steve Henson] 863 864 *) Fix CVE-2011-4619: make sure we really are receiving a 865 client hello before rejecting multiple SGC restarts. Thanks to 866 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 867 [Steve Henson] 868 869 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 870 871 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 872 Thanks to Antonio Martin, Enterprise Secure Access Research and 873 Development, Cisco Systems, Inc. for discovering this bug and 874 preparing a fix. (CVE-2012-0050) 875 [Antonio Martin] 876 877 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 878 879 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 880 of the Vaudenay padding oracle attack on CBC mode encryption 881 which enables an efficient plaintext recovery attack against 882 the OpenSSL implementation of DTLS. Their attack exploits timing 883 differences arising during decryption processing. A research 884 paper describing this attack can be found at: 885 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 886 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 887 Security Group at Royal Holloway, University of London 888 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 889 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 890 for preparing the fix. (CVE-2011-4108) 891 [Robin Seggelmann, Michael Tuexen] 892 893 *) Clear bytes used for block padding of SSL 3.0 records. 894 (CVE-2011-4576) 895 [Adam Langley (Google)] 896 897 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 898 Kadianakis <desnacked@gmail.com> for discovering this issue and 899 Adam Langley for preparing the fix. (CVE-2011-4619) 900 [Adam Langley (Google)] 901 902 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 903 [Andrey Kulikov <amdeich@gmail.com>] 904 905 *) Prevent malformed RFC3779 data triggering an assertion failure. 906 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 907 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 908 [Rob Austein <sra@hactrn.net>] 909 910 *) Improved PRNG seeding for VOS. 911 [Paul Green <Paul.Green@stratus.com>] 912 913 *) Fix ssl_ciph.c set-up race. 914 [Adam Langley (Google)] 915 916 *) Fix spurious failures in ecdsatest.c. 917 [Emilia K�sper (Google)] 918 919 *) Fix the BIO_f_buffer() implementation (which was mixing different 920 interpretations of the '..._len' fields). 921 [Adam Langley (Google)] 922 923 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 924 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 925 threads won't reuse the same blinding coefficients. 926 927 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 928 lock to call BN_BLINDING_invert_ex, and avoids one use of 929 BN_BLINDING_update for each BN_BLINDING structure (previously, 930 the last update always remained unused). 931 [Emilia K�sper (Google)] 932 933 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 934 [Bob Buckholz (Google)] 935 936 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 937 938 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 939 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 940 [Kaspar Brand <ossl@velox.ch>] 941 942 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 943 for multi-threaded use of ECDH. (CVE-2011-3210) 944 [Adam Langley (Google)] 945 946 *) Fix x509_name_ex_d2i memory leak on bad inputs. 947 [Bodo Moeller] 948 949 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 950 signature public key algorithm by using OID xref utilities instead. 951 Before this you could only use some ECC ciphersuites with SHA1 only. 952 [Steve Henson] 953 954 *) Add protection against ECDSA timing attacks as mentioned in the paper 955 by Billy Bob Brumley and Nicola Tuveri, see: 956 957 http://eprint.iacr.org/2011/232.pdf 958 959 [Billy Bob Brumley and Nicola Tuveri] 960 961 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 962 963 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 964 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 965 966 *) Fix bug in string printing code: if *any* escaping is enabled we must 967 escape the escape character (backslash) or the resulting string is 968 ambiguous. 969 [Steve Henson] 970 971 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 972 973 *) Disable code workaround for ancient and obsolete Netscape browsers 974 and servers: an attacker can use it in a ciphersuite downgrade attack. 975 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 976 [Steve Henson] 977 978 *) Fixed J-PAKE implementation error, originally discovered by 979 Sebastien Martini, further info and confirmation from Stefan 980 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 981 [Ben Laurie] 982 983 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 984 985 *) Fix extension code to avoid race conditions which can result in a buffer 986 overrun vulnerability: resumed sessions must not be modified as they can 987 be shared by multiple threads. CVE-2010-3864 988 [Steve Henson] 989 990 *) Fix WIN32 build system to correctly link an ENGINE directory into 991 a DLL. 992 [Steve Henson] 993 994 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 995 996 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 997 (CVE-2010-1633) 998 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 999 1000 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 1001 1002 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 1003 context. The operation can be customised via the ctrl mechanism in 1004 case ENGINEs want to include additional functionality. 1005 [Steve Henson] 1006 1007 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 1008 [Steve Henson] 1009 1010 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 1011 output hashes compatible with older versions of OpenSSL. 1012 [Willy Weisz <weisz@vcpc.univie.ac.at>] 1013 1014 *) Fix compression algorithm handling: if resuming a session use the 1015 compression algorithm of the resumed session instead of determining 1016 it from client hello again. Don't allow server to change algorithm. 1017 [Steve Henson] 1018 1019 *) Add load_crls() function to apps tidying load_certs() too. Add option 1020 to verify utility to allow additional CRLs to be included. 1021 [Steve Henson] 1022 1023 *) Update OCSP request code to permit adding custom headers to the request: 1024 some responders need this. 1025 [Steve Henson] 1026 1027 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 1028 correctly. 1029 [Julia Lawall <julia@diku.dk>] 1030 1031 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 1032 needlessly dereferenced structures, used obsolete functions and 1033 didn't handle all updated verify codes correctly. 1034 [Steve Henson] 1035 1036 *) Disable MD2 in the default configuration. 1037 [Steve Henson] 1038 1039 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 1040 indicate the initial BIO being pushed or popped. This makes it possible 1041 to determine whether the BIO is the one explicitly called or as a result 1042 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 1043 it handles reference counts correctly and doesn't zero out the I/O bio 1044 when it is not being explicitly popped. WARNING: applications which 1045 included workarounds for the old buggy behaviour will need to be modified 1046 or they could free up already freed BIOs. 1047 [Steve Henson] 1048 1049 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 1050 renaming to all platforms (within the 0.9.8 branch, this was 1051 done conditionally on Netware platforms to avoid a name clash). 1052 [Guenter <lists@gknw.net>] 1053 1054 *) Add ECDHE and PSK support to DTLS. 1055 [Michael Tuexen <tuexen@fh-muenster.de>] 1056 1057 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 1058 be used on C++. 1059 [Steve Henson] 1060 1061 *) Add "missing" function EVP_MD_flags() (without this the only way to 1062 retrieve a digest flags is by accessing the structure directly. Update 1063 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 1064 or cipher is registered as in the "from" argument. Print out all 1065 registered digests in the dgst usage message instead of manually 1066 attempting to work them out. 1067 [Steve Henson] 1068 1069 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 1070 this allows the use of compression and extensions. Change default cipher 1071 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 1072 by default unless an application cipher string requests it. 1073 [Steve Henson] 1074 1075 *) Alter match criteria in PKCS12_parse(). It used to try to use local 1076 key ids to find matching certificates and keys but some PKCS#12 files 1077 don't follow the (somewhat unwritten) rules and this strategy fails. 1078 Now just gather all certificates together and the first private key 1079 then look for the first certificate that matches the key. 1080 [Steve Henson] 1081 1082 *) Support use of registered digest and cipher names for dgst and cipher 1083 commands instead of having to add each one as a special case. So now 1084 you can do: 1085 1086 openssl sha256 foo 1087 1088 as well as: 1089 1090 openssl dgst -sha256 foo 1091 1092 and this works for ENGINE based algorithms too. 1093 1094 [Steve Henson] 1095 1096 *) Update Gost ENGINE to support parameter files. 1097 [Victor B. Wagner <vitus@cryptocom.ru>] 1098 1099 *) Support GeneralizedTime in ca utility. 1100 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 1101 1102 *) Enhance the hash format used for certificate directory links. The new 1103 form uses the canonical encoding (meaning equivalent names will work 1104 even if they aren't identical) and uses SHA1 instead of MD5. This form 1105 is incompatible with the older format and as a result c_rehash should 1106 be used to rebuild symbolic links. 1107 [Steve Henson] 1108 1109 *) Make PKCS#8 the default write format for private keys, replacing the 1110 traditional format. This form is standardised, more secure and doesn't 1111 include an implicit MD5 dependency. 1112 [Steve Henson] 1113 1114 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 1115 committed to OpenSSL should pass this lot as a minimum. 1116 [Steve Henson] 1117 1118 *) Add session ticket override functionality for use by EAP-FAST. 1119 [Jouni Malinen <j@w1.fi>] 1120 1121 *) Modify HMAC functions to return a value. Since these can be implemented 1122 in an ENGINE errors can occur. 1123 [Steve Henson] 1124 1125 *) Type-checked OBJ_bsearch_ex. 1126 [Ben Laurie] 1127 1128 *) Type-checked OBJ_bsearch. Also some constification necessitated 1129 by type-checking. Still to come: TXT_DB, bsearch(?), 1130 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 1131 CONF_VALUE. 1132 [Ben Laurie] 1133 1134 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 1135 seconds to a tm structure directly, instead of going through OS 1136 specific date routines. This avoids any issues with OS routines such 1137 as the year 2038 bug. New *_adj() functions for ASN1 time structures 1138 and X509_time_adj_ex() to cover the extended range. The existing 1139 X509_time_adj() is still usable and will no longer have any date issues. 1140 [Steve Henson] 1141 1142 *) Delta CRL support. New use deltas option which will attempt to locate 1143 and search any appropriate delta CRLs available. 1144 1145 This work was sponsored by Google. 1146 [Steve Henson] 1147 1148 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 1149 code and add additional score elements. Validate alternate CRL paths 1150 as part of the CRL checking and indicate a new error "CRL path validation 1151 error" in this case. Applications wanting additional details can use 1152 the verify callback and check the new "parent" field. If this is not 1153 NULL CRL path validation is taking place. Existing applications wont 1154 see this because it requires extended CRL support which is off by 1155 default. 1156 1157 This work was sponsored by Google. 1158 [Steve Henson] 1159 1160 *) Support for freshest CRL extension. 1161 1162 This work was sponsored by Google. 1163 [Steve Henson] 1164 1165 *) Initial indirect CRL support. Currently only supported in the CRLs 1166 passed directly and not via lookup. Process certificate issuer 1167 CRL entry extension and lookup CRL entries by bother issuer name 1168 and serial number. Check and process CRL issuer entry in IDP extension. 1169 1170 This work was sponsored by Google. 1171 [Steve Henson] 1172 1173 *) Add support for distinct certificate and CRL paths. The CRL issuer 1174 certificate is validated separately in this case. Only enabled if 1175 an extended CRL support flag is set: this flag will enable additional 1176 CRL functionality in future. 1177 1178 This work was sponsored by Google. 1179 [Steve Henson] 1180 1181 *) Add support for policy mappings extension. 1182 1183 This work was sponsored by Google. 1184 [Steve Henson] 1185 1186 *) Fixes to pathlength constraint, self issued certificate handling, 1187 policy processing to align with RFC3280 and PKITS tests. 1188 1189 This work was sponsored by Google. 1190 [Steve Henson] 1191 1192 *) Support for name constraints certificate extension. DN, email, DNS 1193 and URI types are currently supported. 1194 1195 This work was sponsored by Google. 1196 [Steve Henson] 1197 1198 *) To cater for systems that provide a pointer-based thread ID rather 1199 than numeric, deprecate the current numeric thread ID mechanism and 1200 replace it with a structure and associated callback type. This 1201 mechanism allows a numeric "hash" to be extracted from a thread ID in 1202 either case, and on platforms where pointers are larger than 'long', 1203 mixing is done to help ensure the numeric 'hash' is usable even if it 1204 can't be guaranteed unique. The default mechanism is to use "&errno" 1205 as a pointer-based thread ID to distinguish between threads. 1206 1207 Applications that want to provide their own thread IDs should now use 1208 CRYPTO_THREADID_set_callback() to register a callback that will call 1209 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 1210 1211 Note that ERR_remove_state() is now deprecated, because it is tied 1212 to the assumption that thread IDs are numeric. ERR_remove_state(0) 1213 to free the current thread's error state should be replaced by 1214 ERR_remove_thread_state(NULL). 1215 1216 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 1217 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 1218 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 1219 application was previously providing a numeric thread callback that 1220 was inappropriate for distinguishing threads, then uniqueness might 1221 have been obtained with &errno that happened immediately in the 1222 intermediate development versions of OpenSSL; this is no longer the 1223 case, the numeric thread callback will now override the automatic use 1224 of &errno.) 1225 [Geoff Thorpe, with help from Bodo Moeller] 1226 1227 *) Initial support for different CRL issuing certificates. This covers a 1228 simple case where the self issued certificates in the chain exist and 1229 the real CRL issuer is higher in the existing chain. 1230 1231 This work was sponsored by Google. 1232 [Steve Henson] 1233 1234 *) Removed effectively defunct crypto/store from the build. 1235 [Ben Laurie] 1236 1237 *) Revamp of STACK to provide stronger type-checking. Still to come: 1238 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 1239 ASN1_STRING, CONF_VALUE. 1240 [Ben Laurie] 1241 1242 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 1243 RAM on SSL connections. This option can save about 34k per idle SSL. 1244 [Nick Mathewson] 1245 1246 *) Revamp of LHASH to provide stronger type-checking. Still to come: 1247 STACK, TXT_DB, bsearch, qsort. 1248 [Ben Laurie] 1249 1250 *) Initial support for Cryptographic Message Syntax (aka CMS) based 1251 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 1252 support for data, signedData, compressedData, digestedData and 1253 encryptedData, envelopedData types included. Scripts to check against 1254 RFC4134 examples draft and interop and consistency checks of many 1255 content types and variants. 1256 [Steve Henson] 1257 1258 *) Add options to enc utility to support use of zlib compression BIO. 1259 [Steve Henson] 1260 1261 *) Extend mk1mf to support importing of options and assembly language 1262 files from Configure script, currently only included in VC-WIN32. 1263 The assembly language rules can now optionally generate the source 1264 files from the associated perl scripts. 1265 [Steve Henson] 1266 1267 *) Implement remaining functionality needed to support GOST ciphersuites. 1268 Interop testing has been performed using CryptoPro implementations. 1269 [Victor B. Wagner <vitus@cryptocom.ru>] 1270 1271 *) s390x assembler pack. 1272 [Andy Polyakov] 1273 1274 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 1275 "family." 1276 [Andy Polyakov] 1277 1278 *) Implement Opaque PRF Input TLS extension as specified in 1279 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 1280 official specification yet and no extension type assignment by 1281 IANA exists, this extension (for now) will have to be explicitly 1282 enabled when building OpenSSL by providing the extension number 1283 to use. For example, specify an option 1284 1285 -DTLSEXT_TYPE_opaque_prf_input=0x9527 1286 1287 to the "config" or "Configure" script to enable the extension, 1288 assuming extension number 0x9527 (which is a completely arbitrary 1289 and unofficial assignment based on the MD5 hash of the Internet 1290 Draft). Note that by doing so, you potentially lose 1291 interoperability with other TLS implementations since these might 1292 be using the same extension number for other purposes. 1293 1294 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1295 opaque PRF input value to use in the handshake. This will create 1296 an interal copy of the length-'len' string at 'src', and will 1297 return non-zero for success. 1298 1299 To get more control and flexibility, provide a callback function 1300 by using 1301 1302 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1303 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1304 1305 where 1306 1307 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1308 void *arg; 1309 1310 Callback function 'cb' will be called in handshakes, and is 1311 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1312 Argument 'arg' is for application purposes (the value as given to 1313 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1314 be provided to the callback function). The callback function 1315 has to return non-zero to report success: usually 1 to use opaque 1316 PRF input just if possible, or 2 to enforce use of the opaque PRF 1317 input. In the latter case, the library will abort the handshake 1318 if opaque PRF input is not successfully negotiated. 1319 1320 Arguments 'peerinput' and 'len' given to the callback function 1321 will always be NULL and 0 in the case of a client. A server will 1322 see the client's opaque PRF input through these variables if 1323 available (NULL and 0 otherwise). Note that if the server 1324 provides an opaque PRF input, the length must be the same as the 1325 length of the client's opaque PRF input. 1326 1327 Note that the callback function will only be called when creating 1328 a new session (session resumption can resume whatever was 1329 previously negotiated), and will not be called in SSL 2.0 1330 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1331 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1332 for applications that need to enforce opaque PRF input. 1333 1334 [Bodo Moeller] 1335 1336 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1337 MAC. 1338 1339 [Victor B. Wagner <vitus@cryptocom.ru>] 1340 1341 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1342 RFC4507bis. The encrypted ticket format is an encrypted encoded 1343 SSL_SESSION structure, that way new session features are automatically 1344 supported. 1345 1346 If a client application caches session in an SSL_SESSION structure 1347 support is transparent because tickets are now stored in the encoded 1348 SSL_SESSION. 1349 1350 The SSL_CTX structure automatically generates keys for ticket 1351 protection in servers so again support should be possible 1352 with no application modification. 1353 1354 If a client or server wishes to disable RFC4507 support then the option 1355 SSL_OP_NO_TICKET can be set. 1356 1357 Add a TLS extension debugging callback to allow the contents of any client 1358 or server extensions to be examined. 1359 1360 This work was sponsored by Google. 1361 [Steve Henson] 1362 1363 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1364 OpenSSL should now compile cleanly on gcc 4.2 1365 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1366 1367 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1368 support including streaming MAC support: this is required for GOST 1369 ciphersuite support. 1370 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1371 1372 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1373 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1374 to output in BER and PEM format. 1375 [Steve Henson] 1376 1377 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1378 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1379 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1380 ENGINE support for HMAC keys which are unextractable. New -mac and 1381 -macopt options to dgst utility. 1382 [Steve Henson] 1383 1384 *) New option -sigopt to dgst utility. Update dgst to use 1385 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1386 alternative signing paramaters such as X9.31 or PSS in the dgst 1387 utility. 1388 [Steve Henson] 1389 1390 *) Change ssl_cipher_apply_rule(), the internal function that does 1391 the work each time a ciphersuite string requests enabling 1392 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1393 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1394 the order of disabled ciphersuites such that those ciphersuites 1395 that most recently went from enabled to disabled not only stay 1396 in order with respect to each other, but also have higher priority 1397 than other disabled ciphersuites the next time ciphersuites are 1398 enabled again. 1399 1400 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1401 the same ciphersuites as with "HIGH" alone, but in a specific 1402 order where the PSK ciphersuites come first (since they are the 1403 most recently disabled ciphersuites when "HIGH" is parsed). 1404 1405 Also, change ssl_create_cipher_list() (using this new 1406 funcionality) such that between otherwise identical 1407 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1408 the default order. 1409 [Bodo Moeller] 1410 1411 *) Change ssl_create_cipher_list() so that it automatically 1412 arranges the ciphersuites in reasonable order before starting 1413 to process the rule string. Thus, the definition for "DEFAULT" 1414 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1415 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1416 This makes it much easier to arrive at a reasonable default order 1417 in applications for which anonymous ciphers are OK (meaning 1418 that you can't actually use DEFAULT). 1419 [Bodo Moeller; suggested by Victor Duchovni] 1420 1421 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1422 processing) into multiple integers instead of setting 1423 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1424 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1425 (These masks as well as the individual bit definitions are hidden 1426 away into the non-exported interface ssl/ssl_locl.h, so this 1427 change to the definition of the SSL_CIPHER structure shouldn't 1428 affect applications.) This give us more bits for each of these 1429 categories, so there is no longer a need to coagulate AES128 and 1430 AES256 into a single algorithm bit, and to coagulate Camellia128 1431 and Camellia256 into a single algorithm bit, which has led to all 1432 kinds of kludges. 1433 1434 Thus, among other things, the kludge introduced in 0.9.7m and 1435 0.9.8e for masking out AES256 independently of AES128 or masking 1436 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1437 1438 With the change, we also introduce new ciphersuite aliases that 1439 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1440 "CAMELLIA256". 1441 [Bodo Moeller] 1442 1443 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1444 Use the leftmost N bytes of the signature input if the input is 1445 larger than the prime q (with N being the size in bytes of q). 1446 [Nils Larsch] 1447 1448 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1449 it yet and it is largely untested. 1450 [Steve Henson] 1451 1452 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1453 [Nils Larsch] 1454 1455 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1456 some compilers (gcc 4.2 and later) reject their use. Safestack is 1457 reimplemented. Update ASN1 to avoid use of legacy functions. 1458 [Steve Henson] 1459 1460 *) Win32/64 targets are linked with Winsock2. 1461 [Andy Polyakov] 1462 1463 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1464 to external functions. This can be used to increase CRL handling 1465 efficiency especially when CRLs are very large by (for example) storing 1466 the CRL revoked certificates in a database. 1467 [Steve Henson] 1468 1469 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1470 new CRLs added to a directory can be used. New command line option 1471 -verify_return_error to s_client and s_server. This causes real errors 1472 to be returned by the verify callback instead of carrying on no matter 1473 what. This reflects the way a "real world" verify callback would behave. 1474 [Steve Henson] 1475 1476 *) GOST engine, supporting several GOST algorithms and public key formats. 1477 Kindly donated by Cryptocom. 1478 [Cryptocom] 1479 1480 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1481 partitioned by DP are handled but no indirect CRL or reason partitioning 1482 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1483 selected via a scoring technique which handles IDP and AKID in CRLs. 1484 [Steve Henson] 1485 1486 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1487 will ultimately be used for all verify operations: this will remove the 1488 X509_STORE dependency on certificate verification and allow alternative 1489 lookup methods. X509_STORE based implementations of these two callbacks. 1490 [Steve Henson] 1491 1492 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1493 Modify get_crl() to find a valid (unexpired) CRL if possible. 1494 [Steve Henson] 1495 1496 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1497 this would be called X509_CRL_cmp() but that name is already used by 1498 a function that just compares CRL issuer names. Cache several CRL 1499 extensions in X509_CRL structure and cache CRLDP in X509. 1500 [Steve Henson] 1501 1502 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1503 this maps equivalent X509_NAME structures into a consistent structure. 1504 Name comparison can then be performed rapidly using memcmp(). 1505 [Steve Henson] 1506 1507 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1508 utility. 1509 [Steve Henson] 1510 1511 *) Allow digests to supply their own micalg string for S/MIME type using 1512 the ctrl EVP_MD_CTRL_MICALG. 1513 [Steve Henson] 1514 1515 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1516 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1517 ctrl. It can then customise the structure before and/or after signing 1518 if necessary. 1519 [Steve Henson] 1520 1521 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1522 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1523 to free up any added signature OIDs. 1524 [Steve Henson] 1525 1526 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1527 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1528 digest and cipher tables. New options added to openssl utility: 1529 list-message-digest-algorithms and list-cipher-algorithms. 1530 [Steve Henson] 1531 1532 *) Change the array representation of binary polynomials: the list 1533 of degrees of non-zero coefficients is now terminated with -1. 1534 Previously it was terminated with 0, which was also part of the 1535 value; thus, the array representation was not applicable to 1536 polynomials where t^0 has coefficient zero. This change makes 1537 the array representation useful in a more general context. 1538 [Douglas Stebila] 1539 1540 *) Various modifications and fixes to SSL/TLS cipher string 1541 handling. For ECC, the code now distinguishes between fixed ECDH 1542 with RSA certificates on the one hand and with ECDSA certificates 1543 on the other hand, since these are separate ciphersuites. The 1544 unused code for Fortezza ciphersuites has been removed. 1545 1546 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1547 (not "ECDHE"). For consistency with the code for DH 1548 certificates, use of ECDH certificates is now considered ECDH 1549 authentication, not RSA or ECDSA authentication (the latter is 1550 merely the CA's signing algorithm and not actively used in the 1551 protocol). 1552 1553 The temporary ciphersuite alias "ECCdraft" is no longer 1554 available, and ECC ciphersuites are no longer excluded from "ALL" 1555 and "DEFAULT". The following aliases now exist for RFC 4492 1556 ciphersuites, most of these by analogy with the DH case: 1557 1558 kECDHr - ECDH cert, signed with RSA 1559 kECDHe - ECDH cert, signed with ECDSA 1560 kECDH - ECDH cert (signed with either RSA or ECDSA) 1561 kEECDH - ephemeral ECDH 1562 ECDH - ECDH cert or ephemeral ECDH 1563 1564 aECDH - ECDH cert 1565 aECDSA - ECDSA cert 1566 ECDSA - ECDSA cert 1567 1568 AECDH - anonymous ECDH 1569 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1570 1571 [Bodo Moeller] 1572 1573 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1574 Use correct micalg parameters depending on digest(s) in signed message. 1575 [Steve Henson] 1576 1577 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1578 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1579 [Steve Henson] 1580 1581 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1582 an engine to register a method. Add ENGINE lookups for methods and 1583 functional reference processing. 1584 [Steve Henson] 1585 1586 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1587 EVP_{Sign,Verify}* which allow an application to customise the signature 1588 process. 1589 [Steve Henson] 1590 1591 *) New -resign option to smime utility. This adds one or more signers 1592 to an existing PKCS#7 signedData structure. Also -md option to use an 1593 alternative message digest algorithm for signing. 1594 [Steve Henson] 1595 1596 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1597 create PKCS7 structures containing multiple signers. Update smime 1598 application to support multiple signers. 1599 [Steve Henson] 1600 1601 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1602 digest MAC. 1603 [Steve Henson] 1604 1605 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1606 Reorganize PBE internals to lookup from a static table using NIDs, 1607 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1608 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1609 PRF which will be automatically used with PBES2. 1610 [Steve Henson] 1611 1612 *) Replace the algorithm specific calls to generate keys in "req" with the 1613 new API. 1614 [Steve Henson] 1615 1616 *) Update PKCS#7 enveloped data routines to use new API. This is now 1617 supported by any public key method supporting the encrypt operation. A 1618 ctrl is added to allow the public key algorithm to examine or modify 1619 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1620 a no op. 1621 [Steve Henson] 1622 1623 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1624 a default digest type to use. In most cases this will be SHA1 but some 1625 algorithms (such as GOST) need to specify an alternative digest. The 1626 return value indicates how strong the prefernce is 1 means optional and 1627 2 is mandatory (that is it is the only supported type). Modify 1628 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1629 use the default md. Update openssl utilities to use the default digest 1630 type for signing if it is not explicitly indicated. 1631 [Steve Henson] 1632 1633 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1634 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1635 signing method from the key type. This effectively removes the link 1636 between digests and public key types. 1637 [Steve Henson] 1638 1639 *) Add an OID cross reference table and utility functions. Its purpose is to 1640 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1641 rsaEncryption. This will allow some of the algorithm specific hackery 1642 needed to use the correct OID to be removed. 1643 [Steve Henson] 1644 1645 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1646 structures for PKCS7_sign(). They are now set up by the relevant public 1647 key ASN1 method. 1648 [Steve Henson] 1649 1650 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1651 [Steve Henson] 1652 1653 *) Add support for key derivation (agreement) in the API, DH method and 1654 pkeyutl. 1655 [Steve Henson] 1656 1657 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1658 public and private key formats. As a side effect these add additional 1659 command line functionality not previously available: DSA signatures can be 1660 generated and verified using pkeyutl and DH key support and generation in 1661 pkey, genpkey. 1662 [Steve Henson] 1663 1664 *) BeOS support. 1665 [Oliver Tappe <zooey@hirschkaefer.de>] 1666 1667 *) New make target "install_html_docs" installs HTML renditions of the 1668 manual pages. 1669 [Oliver Tappe <zooey@hirschkaefer.de>] 1670 1671 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1672 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1673 support key and parameter generation and add initial key generation 1674 functionality for RSA. 1675 [Steve Henson] 1676 1677 *) Add functions for main EVP_PKEY_method operations. The undocumented 1678 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1679 EVP_PKEY_{encrypt,decrypt}_old. 1680 [Steve Henson] 1681 1682 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1683 key API, doesn't do much yet. 1684 [Steve Henson] 1685 1686 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1687 public key algorithms. New option to openssl utility: 1688 "list-public-key-algorithms" to print out info. 1689 [Steve Henson] 1690 1691 *) Implement the Supported Elliptic Curves Extension for 1692 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1693 [Douglas Stebila] 1694 1695 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1696 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1697 [Steve Henson] 1698 1699 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1700 utilities such as rsa, dsa, dsaparam etc except they process any key 1701 type. 1702 [Steve Henson] 1703 1704 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1705 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1706 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1707 structure. 1708 [Steve Henson] 1709 1710 *) Initial support for pluggable public key ASN1. 1711 De-spaghettify the public key ASN1 handling. Move public and private 1712 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1713 algorithm specific handling to a single module within the relevant 1714 algorithm directory. Add functions to allow (near) opaque processing 1715 of public and private key structures. 1716 [Steve Henson] 1717 1718 *) Implement the Supported Point Formats Extension for 1719 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1720 [Douglas Stebila] 1721 1722 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1723 for the psk identity [hint] and the psk callback functions to the 1724 SSL_SESSION, SSL and SSL_CTX structure. 1725 1726 New ciphersuites: 1727 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1728 PSK-AES256-CBC-SHA 1729 1730 New functions: 1731 SSL_CTX_use_psk_identity_hint 1732 SSL_get_psk_identity_hint 1733 SSL_get_psk_identity 1734 SSL_use_psk_identity_hint 1735 1736 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1737 1738 *) Add RFC 3161 compliant time stamp request creation, response generation 1739 and response verification functionality. 1740 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1741 1742 *) Add initial support for TLS extensions, specifically for the server_name 1743 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1744 have new members for a host name. The SSL data structure has an 1745 additional member SSL_CTX *initial_ctx so that new sessions can be 1746 stored in that context to allow for session resumption, even after the 1747 SSL has been switched to a new SSL_CTX in reaction to a client's 1748 server_name extension. 1749 1750 New functions (subject to change): 1751 1752 SSL_get_servername() 1753 SSL_get_servername_type() 1754 SSL_set_SSL_CTX() 1755 1756 New CTRL codes and macros (subject to change): 1757 1758 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1759 - SSL_CTX_set_tlsext_servername_callback() 1760 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1761 - SSL_CTX_set_tlsext_servername_arg() 1762 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1763 1764 openssl s_client has a new '-servername ...' option. 1765 1766 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1767 '-key2 ...', '-servername_fatal' (subject to change). This allows 1768 testing the HostName extension for a specific single host name ('-cert' 1769 and '-key' remain fallbacks for handshakes without HostName 1770 negotiation). If the unrecogninzed_name alert has to be sent, this by 1771 default is a warning; it becomes fatal with the '-servername_fatal' 1772 option. 1773 1774 [Peter Sylvester, Remy Allais, Christophe Renou] 1775 1776 *) Whirlpool hash implementation is added. 1777 [Andy Polyakov] 1778 1779 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1780 bn(64,32). Because of instruction set limitations it doesn't have 1781 any negative impact on performance. This was done mostly in order 1782 to make it possible to share assembler modules, such as bn_mul_mont 1783 implementations, between 32- and 64-bit builds without hassle. 1784 [Andy Polyakov] 1785 1786 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1787 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1788 macro. 1789 [Bodo Moeller] 1790 1791 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1792 dedicated Montgomery multiplication procedure, is introduced. 1793 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1794 "64-bit" performance on certain 32-bit targets. 1795 [Andy Polyakov] 1796 1797 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1798 in SSL structures. New SSL ctrl to set maximum send fragment size. 1799 Save memory by seeting the I/O buffer sizes dynamically instead of 1800 using the maximum available value. 1801 [Steve Henson] 1802 1803 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1804 in addition to the text details. 1805 [Bodo Moeller] 1806 1807 *) Very, very preliminary EXPERIMENTAL support for printing of general 1808 ASN1 structures. This currently produces rather ugly output and doesn't 1809 handle several customised structures at all. 1810 [Steve Henson] 1811 1812 *) Integrated support for PVK file format and some related formats such 1813 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1814 these in the 'rsa' and 'dsa' utilities. 1815 [Steve Henson] 1816 1817 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1818 [Steve Henson] 1819 1820 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1821 place for the (very old) "NETSCAPE" format certificates which are now 1822 handled using new ASN1 code equivalents. 1823 [Steve Henson] 1824 1825 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1826 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1827 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1828 [Nils Larsch] 1829 1830 *) Modify CRL distribution points extension code to print out previously 1831 unsupported fields. Enhance extension setting code to allow setting of 1832 all fields. 1833 [Steve Henson] 1834 1835 *) Add print and set support for Issuing Distribution Point CRL extension. 1836 [Steve Henson] 1837 1838 *) Change 'Configure' script to enable Camellia by default. 1839 [NTT] 1840 1841 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1842 1843 *) When rejecting SSL/TLS records due to an incorrect version number, never 1844 update s->server with a new major version number. As of 1845 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1846 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1847 the previous behavior could result in a read attempt at NULL when 1848 receiving specific incorrect SSL/TLS records once record payload 1849 protection is active. (CVE-2010-0740) 1850 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1851 1852 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1853 could be crashed if the relevant tables were not present (e.g. chrooted). 1854 [Tomas Hoger <thoger@redhat.com>] 1855 1856 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1857 1858 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1859 [Martin Olsson, Neel Mehta] 1860 1861 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1862 accommodate for stack sorting, always a write lock!). 1863 [Bodo Moeller] 1864 1865 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1866 excessive delays in the RAND_poll(): over a minute. As a workaround 1867 include a time check in the inner Heap32Next loop too. 1868 [Steve Henson] 1869 1870 *) The code that handled flushing of data in SSL/TLS originally used the 1871 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1872 the problem outlined in PR#1949. The fix suggested there however can 1873 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1874 of Apache). So instead simplify the code to flush unconditionally. 1875 This should be fine since flushing with no data to flush is a no op. 1876 [Steve Henson] 1877 1878 *) Handle TLS versions 2.0 and later properly and correctly use the 1879 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1880 off ancient servers have a habit of sticking around for a while... 1881 [Steve Henson] 1882 1883 *) Modify compression code so it frees up structures without using the 1884 ex_data callbacks. This works around a problem where some applications 1885 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1886 restarting) then use compression (e.g. SSL with compression) later. 1887 This results in significant per-connection memory leaks and 1888 has caused some security issues including CVE-2008-1678 and 1889 CVE-2009-4355. 1890 [Steve Henson] 1891 1892 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1893 change when encrypting or decrypting. 1894 [Bodo Moeller] 1895 1896 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1897 connect and renegotiate with servers which do not support RI. 1898 Until RI is more widely deployed this option is enabled by default. 1899 [Steve Henson] 1900 1901 *) Add "missing" ssl ctrls to clear options and mode. 1902 [Steve Henson] 1903 1904 *) If client attempts to renegotiate and doesn't support RI respond with 1905 a no_renegotiation alert as required by RFC5746. Some renegotiating 1906 TLS clients will continue a connection gracefully when they receive 1907 the alert. Unfortunately OpenSSL mishandled this alert and would hang 1908 waiting for a server hello which it will never receive. Now we treat a 1909 received no_renegotiation alert as a fatal error. This is because 1910 applications requesting a renegotiation might well expect it to succeed 1911 and would have no code in place to handle the server denying it so the 1912 only safe thing to do is to terminate the connection. 1913 [Steve Henson] 1914 1915 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 1916 peer supports secure renegotiation and 0 otherwise. Print out peer 1917 renegotiation support in s_client/s_server. 1918 [Steve Henson] 1919 1920 *) Replace the highly broken and deprecated SPKAC certification method with 1921 the updated NID creation version. This should correctly handle UTF8. 1922 [Steve Henson] 1923 1924 *) Implement RFC5746. Re-enable renegotiation but require the extension 1925 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 1926 turns out to be a bad idea. It has been replaced by 1927 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 1928 SSL_CTX_set_options(). This is really not recommended unless you 1929 know what you are doing. 1930 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 1931 1932 *) Fixes to stateless session resumption handling. Use initial_ctx when 1933 issuing and attempting to decrypt tickets in case it has changed during 1934 servername handling. Use a non-zero length session ID when attempting 1935 stateless session resumption: this makes it possible to determine if 1936 a resumption has occurred immediately after receiving server hello 1937 (several places in OpenSSL subtly assume this) instead of later in 1938 the handshake. 1939 [Steve Henson] 1940 1941 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 1942 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 1943 fixes for a few places where the return code is not checked 1944 correctly. 1945 [Julia Lawall <julia@diku.dk>] 1946 1947 *) Add --strict-warnings option to Configure script to include devteam 1948 warnings in other configurations. 1949 [Steve Henson] 1950 1951 *) Add support for --libdir option and LIBDIR variable in makefiles. This 1952 makes it possible to install openssl libraries in locations which 1953 have names other than "lib", for example "/usr/lib64" which some 1954 systems need. 1955 [Steve Henson, based on patch from Jeremy Utley] 1956 1957 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 1958 X690 8.9.12 and can produce some misleading textual output of OIDs. 1959 [Steve Henson, reported by Dan Kaminsky] 1960 1961 *) Delete MD2 from algorithm tables. This follows the recommendation in 1962 several standards that it is not used in new applications due to 1963 several cryptographic weaknesses. For binary compatibility reasons 1964 the MD2 API is still compiled in by default. 1965 [Steve Henson] 1966 1967 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 1968 and restored. 1969 [Steve Henson] 1970 1971 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 1972 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 1973 clash. 1974 [Guenter <lists@gknw.net>] 1975 1976 *) Fix the server certificate chain building code to use X509_verify_cert(), 1977 it used to have an ad-hoc builder which was unable to cope with anything 1978 other than a simple chain. 1979 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 1980 1981 *) Don't check self signed certificate signatures in X509_verify_cert() 1982 by default (a flag can override this): it just wastes time without 1983 adding any security. As a useful side effect self signed root CAs 1984 with non-FIPS digests are now usable in FIPS mode. 1985 [Steve Henson] 1986 1987 *) In dtls1_process_out_of_seq_message() the check if the current message 1988 is already buffered was missing. For every new message was memory 1989 allocated, allowing an attacker to perform an denial of service attack 1990 with sending out of seq handshake messages until there is no memory 1991 left. Additionally every future messege was buffered, even if the 1992 sequence number made no sense and would be part of another handshake. 1993 So only messages with sequence numbers less than 10 in advance will be 1994 buffered. (CVE-2009-1378) 1995 [Robin Seggelmann, discovered by Daniel Mentz] 1996 1997 *) Records are buffered if they arrive with a future epoch to be 1998 processed after finishing the corresponding handshake. There is 1999 currently no limitation to this buffer allowing an attacker to perform 2000 a DOS attack with sending records with future epochs until there is no 2001 memory left. This patch adds the pqueue_size() function to detemine 2002 the size of a buffer and limits the record buffer to 100 entries. 2003 (CVE-2009-1377) 2004 [Robin Seggelmann, discovered by Daniel Mentz] 2005 2006 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 2007 parent structure is freed. (CVE-2009-1379) 2008 [Daniel Mentz] 2009 2010 *) Handle non-blocking I/O properly in SSL_shutdown() call. 2011 [Darryl Miles <darryl-mailinglists@netbauds.net>] 2012 2013 *) Add 2.5.4.* OIDs 2014 [Ilya O. <vrghost@gmail.com>] 2015 2016 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 2017 2018 *) Disable renegotiation completely - this fixes a severe security 2019 problem (CVE-2009-3555) at the cost of breaking all 2020 renegotiation. Renegotiation can be re-enabled by setting 2021 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 2022 run-time. This is really not recommended unless you know what 2023 you're doing. 2024 [Ben Laurie] 2025 2026 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 2027 2028 *) Don't set val to NULL when freeing up structures, it is freed up by 2029 underlying code. If sizeof(void *) > sizeof(long) this can result in 2030 zeroing past the valid field. (CVE-2009-0789) 2031 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 2032 2033 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 2034 checked correctly. This would allow some invalid signed attributes to 2035 appear to verify correctly. (CVE-2009-0591) 2036 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2037 2038 *) Reject UniversalString and BMPString types with invalid lengths. This 2039 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 2040 a legal length. (CVE-2009-0590) 2041 [Steve Henson] 2042 2043 *) Set S/MIME signing as the default purpose rather than setting it 2044 unconditionally. This allows applications to override it at the store 2045 level. 2046 [Steve Henson] 2047 2048 *) Permit restricted recursion of ASN1 strings. This is needed in practice 2049 to handle some structures. 2050 [Steve Henson] 2051 2052 *) Improve efficiency of mem_gets: don't search whole buffer each time 2053 for a '\n' 2054 [Jeremy Shapiro <jnshapir@us.ibm.com>] 2055 2056 *) New -hex option for openssl rand. 2057 [Matthieu Herrb] 2058 2059 *) Print out UTF8String and NumericString when parsing ASN1. 2060 [Steve Henson] 2061 2062 *) Support NumericString type for name components. 2063 [Steve Henson] 2064 2065 *) Allow CC in the environment to override the automatically chosen 2066 compiler. Note that nothing is done to ensure flags work with the 2067 chosen compiler. 2068 [Ben Laurie] 2069 2070 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2071 2072 *) Properly check EVP_VerifyFinal() and similar return values 2073 (CVE-2008-5077). 2074 [Ben Laurie, Bodo Moeller, Google Security Team] 2075 2076 *) Enable TLS extensions by default. 2077 [Ben Laurie] 2078 2079 *) Allow the CHIL engine to be loaded, whether the application is 2080 multithreaded or not. (This does not release the developer from the 2081 obligation to set up the dynamic locking callbacks.) 2082 [Sander Temme <sander@temme.net>] 2083 2084 *) Use correct exit code if there is an error in dgst command. 2085 [Steve Henson; problem pointed out by Roland Dirlewanger] 2086 2087 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2088 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2089 [Bodo Moeller] 2090 2091 *) Add experimental JPAKE support, including demo authentication in 2092 s_client and s_server. 2093 [Ben Laurie] 2094 2095 *) Set the comparison function in v3_addr_canonize(). 2096 [Rob Austein <sra@hactrn.net>] 2097 2098 *) Add support for XMPP STARTTLS in s_client. 2099 [Philip Paeps <philip@freebsd.org>] 2100 2101 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2102 to ensure that even with this option, only ciphersuites in the 2103 server's preference list will be accepted. (Note that the option 2104 applies only when resuming a session, so the earlier behavior was 2105 just about the algorithm choice for symmetric cryptography.) 2106 [Bodo Moeller] 2107 2108 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2109 2110 *) Fix NULL pointer dereference if a DTLS server received 2111 ChangeCipherSpec as first record (CVE-2009-1386). 2112 [PR #1679] 2113 2114 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2115 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2116 [Nagendra Modadugu] 2117 2118 *) The fix in 0.9.8c that supposedly got rid of unsafe 2119 double-checked locking was incomplete for RSA blinding, 2120 addressing just one layer of what turns out to have been 2121 doubly unsafe triple-checked locking. 2122 2123 So now fix this for real by retiring the MONT_HELPER macro 2124 in crypto/rsa/rsa_eay.c. 2125 2126 [Bodo Moeller; problem pointed out by Marius Schilder] 2127 2128 *) Various precautionary measures: 2129 2130 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2131 2132 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2133 (NB: This would require knowledge of the secret session ticket key 2134 to exploit, in which case you'd be SOL either way.) 2135 2136 - Change bn_nist.c so that it will properly handle input BIGNUMs 2137 outside the expected range. 2138 2139 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2140 builds. 2141 2142 [Neel Mehta, Bodo Moeller] 2143 2144 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2145 the load fails. Useful for distros. 2146 [Ben Laurie and the FreeBSD team] 2147 2148 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2149 [Steve Henson] 2150 2151 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2152 [Huang Ying] 2153 2154 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2155 2156 This work was sponsored by Logica. 2157 [Steve Henson] 2158 2159 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2160 keystores. Support for SSL/TLS client authentication too. 2161 Not compiled unless enable-capieng specified to Configure. 2162 2163 This work was sponsored by Logica. 2164 [Steve Henson] 2165 2166 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2167 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2168 attribute creation routines such as certifcate requests and PKCS#12 2169 files. 2170 [Steve Henson] 2171 2172 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2173 2174 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2175 handshake which could lead to a cilent crash as found using the 2176 Codenomicon TLS test suite (CVE-2008-1672) 2177 [Steve Henson, Mark Cox] 2178 2179 *) Fix double free in TLS server name extensions which could lead to 2180 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2181 [Joe Orton] 2182 2183 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2184 2185 Clear the error queue to ensure that error entries left from 2186 older function calls do not interfere with the correct operation. 2187 [Lutz Jaenicke, Erik de Castro Lopo] 2188 2189 *) Remove root CA certificates of commercial CAs: 2190 2191 The OpenSSL project does not recommend any specific CA and does not 2192 have any policy with respect to including or excluding any CA. 2193 Therefore it does not make any sense to ship an arbitrary selection 2194 of root CA certificates with the OpenSSL software. 2195 [Lutz Jaenicke] 2196 2197 *) RSA OAEP patches to fix two separate invalid memory reads. 2198 The first one involves inputs when 'lzero' is greater than 2199 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2200 before the beginning of from). The second one involves inputs where 2201 the 'db' section contains nothing but zeroes (there is a one-byte 2202 invalid read after the end of 'db'). 2203 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2204 2205 *) Partial backport from 0.9.9-dev: 2206 2207 Introduce bn_mul_mont (dedicated Montgomery multiplication 2208 procedure) as a candidate for BIGNUM assembler implementation. 2209 While 0.9.9-dev uses assembler for various architectures, only 2210 x86_64 is available by default here in the 0.9.8 branch, and 2211 32-bit x86 is available through a compile-time setting. 2212 2213 To try the 32-bit x86 assembler implementation, use Configure 2214 option "enable-montasm" (which exists only for this backport). 2215 2216 As "enable-montasm" for 32-bit x86 disclaims code stability 2217 anyway, in this constellation we activate additional code 2218 backported from 0.9.9-dev for further performance improvements, 2219 namely BN_from_montgomery_word. (To enable this otherwise, 2220 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2221 2222 [Andy Polyakov (backport partially by Bodo Moeller)] 2223 2224 *) Add TLS session ticket callback. This allows an application to set 2225 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2226 values. This is useful for key rollover for example where several key 2227 sets may exist with different names. 2228 [Steve Henson] 2229 2230 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2231 This was broken until now in 0.9.8 releases, such that the only way 2232 a registered ENGINE could be used (assuming it initialises 2233 successfully on the host) was to explicitly set it as the default 2234 for the relevant algorithms. This is in contradiction with 0.9.7 2235 behaviour and the documentation. With this fix, when an ENGINE is 2236 registered into a given algorithm's table of implementations, the 2237 'uptodate' flag is reset so that auto-discovery will be used next 2238 time a new context for that algorithm attempts to select an 2239 implementation. 2240 [Ian Lister (tweaked by Geoff Thorpe)] 2241 2242 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2243 implemention in the following ways: 2244 2245 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2246 hard coded. 2247 2248 Lack of BER streaming support means one pass streaming processing is 2249 only supported if data is detached: setting the streaming flag is 2250 ignored for embedded content. 2251 2252 CMS support is disabled by default and must be explicitly enabled 2253 with the enable-cms configuration option. 2254 [Steve Henson] 2255 2256 *) Update the GMP engine glue to do direct copies between BIGNUM and 2257 mpz_t when openssl and GMP use the same limb size. Otherwise the 2258 existing "conversion via a text string export" trick is still used. 2259 [Paul Sheer <paulsheer@gmail.com>] 2260 2261 *) Zlib compression BIO. This is a filter BIO which compressed and 2262 uncompresses any data passed through it. 2263 [Steve Henson] 2264 2265 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2266 RFC3394 compatible AES key wrapping. 2267 [Steve Henson] 2268 2269 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2270 sets string data without copying. X509_ALGOR_set0() and 2271 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2272 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2273 from an X509_ATTRIBUTE structure optionally checking it occurs only 2274 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2275 data. 2276 [Steve Henson] 2277 2278 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2279 to get the expected BN_FLG_CONSTTIME behavior. 2280 [Bodo Moeller (Google)] 2281 2282 *) Netware support: 2283 2284 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2285 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2286 - added some more tests to do_tests.pl 2287 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2288 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2289 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2290 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2291 - various changes to netware.pl to enable gcc-cross builds on Win32 2292 platform 2293 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2294 - various changes to fix missing prototype warnings 2295 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2296 - added AES, WHIRLPOOL and CPUID assembler code to build files 2297 - added missing AES assembler make rules to mk1mf.pl 2298 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2299 [Guenter Knauf <eflash@gmx.net>] 2300 2301 *) Implement certificate status request TLS extension defined in RFC3546. 2302 A client can set the appropriate parameters and receive the encoded 2303 OCSP response via a callback. A server can query the supplied parameters 2304 and set the encoded OCSP response in the callback. Add simplified examples 2305 to s_client and s_server. 2306 [Steve Henson] 2307 2308 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2309 2310 *) Fix various bugs: 2311 + Binary incompatibility of ssl_ctx_st structure 2312 + DTLS interoperation with non-compliant servers 2313 + Don't call get_session_cb() without proposed session 2314 + Fix ia64 assembler code 2315 [Andy Polyakov, Steve Henson] 2316 2317 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2318 2319 *) DTLS Handshake overhaul. There were longstanding issues with 2320 OpenSSL DTLS implementation, which were making it impossible for 2321 RFC 4347 compliant client to communicate with OpenSSL server. 2322 Unfortunately just fixing these incompatibilities would "cut off" 2323 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2324 server keeps tolerating non RFC compliant syntax. The opposite is 2325 not true, 0.9.8f client can not communicate with earlier server. 2326 This update even addresses CVE-2007-4995. 2327 [Andy Polyakov] 2328 2329 *) Changes to avoid need for function casts in OpenSSL: some compilers 2330 (gcc 4.2 and later) reject their use. 2331 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2332 Steve Henson] 2333 2334 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2335 RFC4507bis. The encrypted ticket format is an encrypted encoded 2336 SSL_SESSION structure, that way new session features are automatically 2337 supported. 2338 2339 If a client application caches session in an SSL_SESSION structure 2340 support is transparent because tickets are now stored in the encoded 2341 SSL_SESSION. 2342 2343 The SSL_CTX structure automatically generates keys for ticket 2344 protection in servers so again support should be possible 2345 with no application modification. 2346 2347 If a client or server wishes to disable RFC4507 support then the option 2348 SSL_OP_NO_TICKET can be set. 2349 2350 Add a TLS extension debugging callback to allow the contents of any client 2351 or server extensions to be examined. 2352 2353 This work was sponsored by Google. 2354 [Steve Henson] 2355 2356 *) Add initial support for TLS extensions, specifically for the server_name 2357 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2358 have new members for a host name. The SSL data structure has an 2359 additional member SSL_CTX *initial_ctx so that new sessions can be 2360 stored in that context to allow for session resumption, even after the 2361 SSL has been switched to a new SSL_CTX in reaction to a client's 2362 server_name extension. 2363 2364 New functions (subject to change): 2365 2366 SSL_get_servername() 2367 SSL_get_servername_type() 2368 SSL_set_SSL_CTX() 2369 2370 New CTRL codes and macros (subject to change): 2371 2372 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2373 - SSL_CTX_set_tlsext_servername_callback() 2374 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2375 - SSL_CTX_set_tlsext_servername_arg() 2376 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2377 2378 openssl s_client has a new '-servername ...' option. 2379 2380 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2381 '-key2 ...', '-servername_fatal' (subject to change). This allows 2382 testing the HostName extension for a specific single host name ('-cert' 2383 and '-key' remain fallbacks for handshakes without HostName 2384 negotiation). If the unrecogninzed_name alert has to be sent, this by 2385 default is a warning; it becomes fatal with the '-servername_fatal' 2386 option. 2387 2388 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2389 2390 *) Add AES and SSE2 assembly language support to VC++ build. 2391 [Steve Henson] 2392 2393 *) Mitigate attack on final subtraction in Montgomery reduction. 2394 [Andy Polyakov] 2395 2396 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2397 (which previously caused an internal error). 2398 [Bodo Moeller] 2399 2400 *) Squeeze another 10% out of IGE mode when in != out. 2401 [Ben Laurie] 2402 2403 *) AES IGE mode speedup. 2404 [Dean Gaudet (Google)] 2405 2406 *) Add the Korean symmetric 128-bit cipher SEED (see 2407 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2408 add SEED ciphersuites from RFC 4162: 2409 2410 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2411 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2412 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2413 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2414 2415 To minimize changes between patchlevels in the OpenSSL 0.9.8 2416 series, SEED remains excluded from compilation unless OpenSSL 2417 is configured with 'enable-seed'. 2418 [KISA, Bodo Moeller] 2419 2420 *) Mitigate branch prediction attacks, which can be practical if a 2421 single processor is shared, allowing a spy process to extract 2422 information. For detailed background information, see 2423 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2424 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2425 and Necessary Software Countermeasures"). The core of the change 2426 are new versions BN_div_no_branch() and 2427 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2428 respectively, which are slower, but avoid the security-relevant 2429 conditional branches. These are automatically called by BN_div() 2430 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2431 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2432 remove a conditional branch. 2433 2434 BN_FLG_CONSTTIME is the new name for the previous 2435 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2436 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2437 in the exponent causes BN_mod_exp_mont() to use the alternative 2438 implementation in BN_mod_exp_mont_consttime().) The old name 2439 remains as a deprecated alias. 2440 2441 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2442 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2443 constant-time implementations for more than just exponentiation. 2444 Here too the old name is kept as a deprecated alias. 2445 2446 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2447 the BN_BLINDING structure gets an independent copy of the 2448 modulus. This means that the previous "BIGNUM *m" argument to 2449 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2450 essentially becomes "const BIGNUM *m", although we can't actually 2451 change this in the header file before 0.9.9. It allows 2452 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2453 enable BN_FLG_CONSTTIME. 2454 2455 [Matthew D Wood (Intel Corp)] 2456 2457 *) In the SSL/TLS server implementation, be strict about session ID 2458 context matching (which matters if an application uses a single 2459 external cache for different purposes). Previously, 2460 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2461 set. This did ensure strict client verification, but meant that, 2462 with applications using a single external cache for quite 2463 different requirements, clients could circumvent ciphersuite 2464 restrictions for a given session ID context by starting a session 2465 in a different context. 2466 [Bodo Moeller] 2467 2468 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2469 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2470 authentication-only ciphersuites. 2471 [Bodo Moeller] 2472 2473 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2474 not complete and could lead to a possible single byte overflow 2475 (CVE-2007-5135) [Ben Laurie] 2476 2477 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2478 2479 *) Since AES128 and AES256 (and similarly Camellia128 and 2480 Camellia256) share a single mask bit in the logic of 2481 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2482 kludge to work properly if AES128 is available and AES256 isn't 2483 (or if Camellia128 is available and Camellia256 isn't). 2484 [Victor Duchovni] 2485 2486 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2487 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2488 When a point or a seed is encoded in a BIT STRING, we need to 2489 prevent the removal of trailing zero bits to get the proper DER 2490 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2491 of a NamedBitList, for which trailing 0 bits need to be removed.) 2492 [Bodo Moeller] 2493 2494 *) Have SSL/TLS server implementation tolerate "mismatched" record 2495 protocol version while receiving ClientHello even if the 2496 ClientHello is fragmented. (The server can't insist on the 2497 particular protocol version it has chosen before the ServerHello 2498 message has informed the client about his choice.) 2499 [Bodo Moeller] 2500 2501 *) Add RFC 3779 support. 2502 [Rob Austein for ARIN, Ben Laurie] 2503 2504 *) Load error codes if they are not already present instead of using a 2505 static variable. This allows them to be cleanly unloaded and reloaded. 2506 Improve header file function name parsing. 2507 [Steve Henson] 2508 2509 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2510 or CAPABILITY handshake as required by RFCs. 2511 [Goetz Babin-Ebell] 2512 2513 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2514 2515 *) Introduce limits to prevent malicious keys being able to 2516 cause a denial of service. (CVE-2006-2940) 2517 [Steve Henson, Bodo Moeller] 2518 2519 *) Fix ASN.1 parsing of certain invalid structures that can result 2520 in a denial of service. (CVE-2006-2937) [Steve Henson] 2521 2522 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2523 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2524 2525 *) Fix SSL client code which could crash if connecting to a 2526 malicious SSLv2 server. (CVE-2006-4343) 2527 [Tavis Ormandy and Will Drewry, Google Security Team] 2528 2529 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2530 match only those. Before that, "AES256-SHA" would be interpreted 2531 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2532 the same strength classification in 0.9.7h) as we currently only 2533 have a single AES bit in the ciphersuite description bitmap. 2534 That change, however, also applied to ciphersuite strings such as 2535 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2536 namely, SSL 2.0 ciphersuites in addition to the more common ones 2537 from SSL 3.0/TLS 1.0. 2538 2539 So we change the selection algorithm again: Naming an explicit 2540 ciphersuite selects this one ciphersuite, and any other similar 2541 ciphersuite (same bitmap) from *other* protocol versions. 2542 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2543 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2544 2545 Since SSL 2.0 does not have any ciphersuites for which the 2546 128/256 bit distinction would be relevant, this works for now. 2547 The proper fix will be to use different bits for AES128 and 2548 AES256, which would have avoided the problems from the beginning; 2549 however, bits are scarce, so we can only do this in a new release 2550 (not just a patchlevel) when we can change the SSL_CIPHER 2551 definition to split the single 'unsigned long mask' bitmap into 2552 multiple values to extend the available space. 2553 2554 [Bodo Moeller] 2555 2556 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2557 2558 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2559 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2560 2561 *) Add AES IGE and biIGE modes. 2562 [Ben Laurie] 2563 2564 *) Change the Unix randomness entropy gathering to use poll() when 2565 possible instead of select(), since the latter has some 2566 undesirable limitations. 2567 [Darryl Miles via Richard Levitte and Bodo Moeller] 2568 2569 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2570 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2571 cannot be implicitly activated as part of, e.g., the "AES" alias. 2572 However, please upgrade to OpenSSL 0.9.9[-dev] for 2573 non-experimental use of the ECC ciphersuites to get TLS extension 2574 support, which is required for curve and point format negotiation 2575 to avoid potential handshake problems. 2576 [Bodo Moeller] 2577 2578 *) Disable rogue ciphersuites: 2579 2580 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2581 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2582 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2583 2584 The latter two were purportedly from 2585 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2586 appear there. 2587 2588 Also deactivate the remaining ciphersuites from 2589 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2590 unofficial, and the ID has long expired. 2591 [Bodo Moeller] 2592 2593 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2594 dual-core machines) and other potential thread-safety issues. 2595 [Bodo Moeller] 2596 2597 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2598 versions), which is now available for royalty-free use 2599 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2600 Also, add Camellia TLS ciphersuites from RFC 4132. 2601 2602 To minimize changes between patchlevels in the OpenSSL 0.9.8 2603 series, Camellia remains excluded from compilation unless OpenSSL 2604 is configured with 'enable-camellia'. 2605 [NTT] 2606 2607 *) Disable the padding bug check when compression is in use. The padding 2608 bug check assumes the first packet is of even length, this is not 2609 necessarily true if compresssion is enabled and can result in false 2610 positives causing handshake failure. The actual bug test is ancient 2611 code so it is hoped that implementations will either have fixed it by 2612 now or any which still have the bug do not support compression. 2613 [Steve Henson] 2614 2615 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2616 2617 *) When applying a cipher rule check to see if string match is an explicit 2618 cipher suite and only match that one cipher suite if it is. 2619 [Steve Henson] 2620 2621 *) Link in manifests for VC++ if needed. 2622 [Austin Ziegler <halostatue@gmail.com>] 2623 2624 *) Update support for ECC-based TLS ciphersuites according to 2625 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2626 TLS extensions, which are supported starting with the 0.9.9 2627 branch, not in the OpenSSL 0.9.8 branch). 2628 [Douglas Stebila] 2629 2630 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2631 opaque EVP_CIPHER_CTX handling. 2632 [Steve Henson] 2633 2634 *) Fixes and enhancements to zlib compression code. We now only use 2635 "zlib1.dll" and use the default __cdecl calling convention on Win32 2636 to conform with the standards mentioned here: 2637 http://www.zlib.net/DLL_FAQ.txt 2638 Static zlib linking now works on Windows and the new --with-zlib-include 2639 --with-zlib-lib options to Configure can be used to supply the location 2640 of the headers and library. Gracefully handle case where zlib library 2641 can't be loaded. 2642 [Steve Henson] 2643 2644 *) Several fixes and enhancements to the OID generation code. The old code 2645 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2646 handle numbers larger than ULONG_MAX, truncated printing and had a 2647 non standard OBJ_obj2txt() behaviour. 2648 [Steve Henson] 2649 2650 *) Add support for building of engines under engine/ as shared libraries 2651 under VC++ build system. 2652 [Steve Henson] 2653 2654 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2655 Hopefully, we will not see any false combination of paths any more. 2656 [Richard Levitte] 2657 2658 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2659 2660 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2661 (part of SSL_OP_ALL). This option used to disable the 2662 countermeasure against man-in-the-middle protocol-version 2663 rollback in the SSL 2.0 server implementation, which is a bad 2664 idea. (CVE-2005-2969) 2665 2666 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2667 for Information Security, National Institute of Advanced Industrial 2668 Science and Technology [AIST], Japan)] 2669 2670 *) Add two function to clear and return the verify parameter flags. 2671 [Steve Henson] 2672 2673 *) Keep cipherlists sorted in the source instead of sorting them at 2674 runtime, thus removing the need for a lock. 2675 [Nils Larsch] 2676 2677 *) Avoid some small subgroup attacks in Diffie-Hellman. 2678 [Nick Mathewson and Ben Laurie] 2679 2680 *) Add functions for well-known primes. 2681 [Nick Mathewson] 2682 2683 *) Extended Windows CE support. 2684 [Satoshi Nakamura and Andy Polyakov] 2685 2686 *) Initialize SSL_METHOD structures at compile time instead of during 2687 runtime, thus removing the need for a lock. 2688 [Steve Henson] 2689 2690 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2691 attempting to decrypt each encrypted key in turn. Add support to 2692 smime utility. 2693 [Steve Henson] 2694 2695 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2696 2697 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2698 OpenSSL 0.9.8.] 2699 2700 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2701 [Richard Levitte] 2702 2703 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2704 key into the same file any more. 2705 [Richard Levitte] 2706 2707 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2708 [Andy Polyakov] 2709 2710 *) Add -utf8 command line and config file option to 'ca'. 2711 [Stefan <stf@udoma.org] 2712 2713 *) Removed the macro des_crypt(), as it seems to conflict with some 2714 libraries. Use DES_crypt(). 2715 [Richard Levitte] 2716 2717 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2718 involves renaming the source and generated shared-libs for 2719 both. The engines will accept the corrected or legacy ids 2720 ('ncipher' and '4758_cca' respectively) when binding. NB, 2721 this only applies when building 'shared'. 2722 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2723 2724 *) Add attribute functions to EVP_PKEY structure. Modify 2725 PKCS12_create() to recognize a CSP name attribute and 2726 use it. Make -CSP option work again in pkcs12 utility. 2727 [Steve Henson] 2728 2729 *) Add new functionality to the bn blinding code: 2730 - automatic re-creation of the BN_BLINDING parameters after 2731 a fixed number of uses (currently 32) 2732 - add new function for parameter creation 2733 - introduce flags to control the update behaviour of the 2734 BN_BLINDING parameters 2735 - hide BN_BLINDING structure 2736 Add a second BN_BLINDING slot to the RSA structure to improve 2737 performance when a single RSA object is shared among several 2738 threads. 2739 [Nils Larsch] 2740 2741 *) Add support for DTLS. 2742 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2743 2744 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2745 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2746 [Walter Goulet] 2747 2748 *) Remove buggy and incompletet DH cert support from 2749 ssl/ssl_rsa.c and ssl/s3_both.c 2750 [Nils Larsch] 2751 2752 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2753 the apps/openssl applications. 2754 [Nils Larsch] 2755 2756 *) Compile clean with "-Wall -Wmissing-prototypes 2757 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2758 DEBUG_SAFESTACK must also be set. 2759 [Ben Laurie] 2760 2761 *) Change ./Configure so that certain algorithms can be disabled by default. 2762 The new counterpiece to "no-xxx" is "enable-xxx". 2763 2764 The patented RC5 and MDC2 algorithms will now be disabled unless 2765 "enable-rc5" and "enable-mdc2", respectively, are specified. 2766 2767 (IDEA remains enabled despite being patented. This is because IDEA 2768 is frequently required for interoperability, and there is no license 2769 fee for non-commercial use. As before, "no-idea" can be used to 2770 avoid this algorithm.) 2771 2772 [Bodo Moeller] 2773 2774 *) Add processing of proxy certificates (see RFC 3820). This work was 2775 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2776 EGEE (Enabling Grids for E-science in Europe). 2777 [Richard Levitte] 2778 2779 *) RC4 performance overhaul on modern architectures/implementations, such 2780 as Intel P4, IA-64 and AMD64. 2781 [Andy Polyakov] 2782 2783 *) New utility extract-section.pl. This can be used specify an alternative 2784 section number in a pod file instead of having to treat each file as 2785 a separate case in Makefile. This can be done by adding two lines to the 2786 pod file: 2787 2788 =for comment openssl_section:XXX 2789 2790 The blank line is mandatory. 2791 2792 [Steve Henson] 2793 2794 *) New arguments -certform, -keyform and -pass for s_client and s_server 2795 to allow alternative format key and certificate files and passphrase 2796 sources. 2797 [Steve Henson] 2798 2799 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2800 update associated structures and add various utility functions. 2801 2802 Add new policy related verify parameters, include policy checking in 2803 standard verify code. Enhance 'smime' application with extra parameters 2804 to support policy checking and print out. 2805 [Steve Henson] 2806 2807 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2808 Nehemiah processors. These extensions support AES encryption in hardware 2809 as well as RNG (though RNG support is currently disabled). 2810 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2811 2812 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2813 [Geoff Thorpe] 2814 2815 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2816 [Andy Polyakov and a number of other people] 2817 2818 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2819 implementation contributed by IBM. 2820 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2821 2822 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2823 exponent rather than 'unsigned long'. There is a corresponding change to 2824 the new 'rsa_keygen' element of the RSA_METHOD structure. 2825 [Jelte Jansen, Geoff Thorpe] 2826 2827 *) Functionality for creating the initial serial number file is now 2828 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2829 2830 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2831 number file to 1, which is bound to cause problems. To avoid 2832 the problems while respecting compatibility between different 0.9.7 2833 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2834 CA.pl for serial number initialization. With the new release 0.9.8, 2835 we can fix the problem directly in the 'ca' utility.) 2836 [Steve Henson] 2837 2838 *) Reduced header interdepencies by declaring more opaque objects in 2839 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2840 give fewer recursive includes, which could break lazy source code - so 2841 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2842 developers should define this symbol when building and using openssl to 2843 ensure they track the recommended behaviour, interfaces, [etc], but 2844 backwards-compatible behaviour prevails when this isn't defined. 2845 [Geoff Thorpe] 2846 2847 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2848 [Steve Henson] 2849 2850 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2851 This will generate a random key of the appropriate length based on the 2852 cipher context. The EVP_CIPHER can provide its own random key generation 2853 routine to support keys of a specific form. This is used in the des and 2854 3des routines to generate a key of the correct parity. Update S/MIME 2855 code to use new functions and hence generate correct parity DES keys. 2856 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2857 valid (weak or incorrect parity). 2858 [Steve Henson] 2859 2860 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2861 as looking them up. This is useful when the verified structure may contain 2862 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2863 present unless the new PKCS7_NO_CRL flag is asserted. 2864 [Steve Henson] 2865 2866 *) Extend ASN1 oid configuration module. It now additionally accepts the 2867 syntax: 2868 2869 shortName = some long name, 1.2.3.4 2870 [Steve Henson] 2871 2872 *) Reimplemented the BN_CTX implementation. There is now no more static 2873 limitation on the number of variables it can handle nor the depth of the 2874 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2875 information can now expand as required, and rather than having a single 2876 static array of bignums, BN_CTX now uses a linked-list of such arrays 2877 allowing it to expand on demand whilst maintaining the usefulness of 2878 BN_CTX's "bundling". 2879 [Geoff Thorpe] 2880 2881 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2882 to allow all RSA operations to function using a single BN_CTX. 2883 [Geoff Thorpe] 2884 2885 *) Preliminary support for certificate policy evaluation and checking. This 2886 is initially intended to pass the tests outlined in "Conformance Testing 2887 of Relying Party Client Certificate Path Processing Logic" v1.07. 2888 [Steve Henson] 2889 2890 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2891 remained unused and not that useful. A variety of other little bignum 2892 tweaks and fixes have also been made continuing on from the audit (see 2893 below). 2894 [Geoff Thorpe] 2895 2896 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2897 associated ASN1, EVP and SSL functions and old ASN1 macros. 2898 [Richard Levitte] 2899 2900 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2901 and this should never fail. So the return value from the use of 2902 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2903 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2904 [Geoff Thorpe] 2905 2906 *) BN_CTX_get() should return zero-valued bignums, providing the same 2907 initialised value as BN_new(). 2908 [Geoff Thorpe, suggested by Ulf M�ller] 2909 2910 *) Support for inhibitAnyPolicy certificate extension. 2911 [Steve Henson] 2912 2913 *) An audit of the BIGNUM code is underway, for which debugging code is 2914 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 2915 is considered valid when processing BIGNUMs, and causes execution to 2916 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 2917 further steps are taken to deliberately pollute unused data in BIGNUM 2918 structures to try and expose faulty code further on. For now, openssl will 2919 (in its default mode of operation) continue to tolerate the inconsistent 2920 forms that it has tolerated in the past, but authors and packagers should 2921 consider trying openssl and their own applications when compiled with 2922 these debugging symbols defined. It will help highlight potential bugs in 2923 their own code, and will improve the test coverage for OpenSSL itself. At 2924 some point, these tighter rules will become openssl's default to improve 2925 maintainability, though the assert()s and other overheads will remain only 2926 in debugging configurations. See bn.h for more details. 2927 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 2928 2929 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 2930 that can only be obtained through BN_CTX_new() (which implicitly 2931 initialises it). The presence of this function only made it possible 2932 to overwrite an existing structure (and cause memory leaks). 2933 [Geoff Thorpe] 2934 2935 *) Because of the callback-based approach for implementing LHASH as a 2936 template type, lh_insert() adds opaque objects to hash-tables and 2937 lh_doall() or lh_doall_arg() are typically used with a destructor callback 2938 to clean up those corresponding objects before destroying the hash table 2939 (and losing the object pointers). So some over-zealous constifications in 2940 LHASH have been relaxed so that lh_insert() does not take (nor store) the 2941 objects as "const" and the lh_doall[_arg] callback wrappers are not 2942 prototyped to have "const" restrictions on the object pointers they are 2943 given (and so aren't required to cast them away any more). 2944 [Geoff Thorpe] 2945 2946 *) The tmdiff.h API was so ugly and minimal that our own timing utility 2947 (speed) prefers to use its own implementation. The two implementations 2948 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 2949 its object type properly exposed (MS_TM) instead of casting to/from "char 2950 *". This may still change yet if someone realises MS_TM and "ms_time_***" 2951 aren't necessarily the greatest nomenclatures - but this is what was used 2952 internally to the implementation so I've used that for now. 2953 [Geoff Thorpe] 2954 2955 *) Ensure that deprecated functions do not get compiled when 2956 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 2957 the self-tests were still using deprecated key-generation functions so 2958 these have been updated also. 2959 [Geoff Thorpe] 2960 2961 *) Reorganise PKCS#7 code to separate the digest location functionality 2962 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 2963 New function PKCS7_set_digest() to set the digest type for PKCS#7 2964 digestedData type. Add additional code to correctly generate the 2965 digestedData type and add support for this type in PKCS7 initialization 2966 functions. 2967 [Steve Henson] 2968 2969 *) New function PKCS7_set0_type_other() this initializes a PKCS7 2970 structure of type "other". 2971 [Steve Henson] 2972 2973 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 2974 sure the loop does correctly stop and breaking ("division by zero") 2975 modulus operations are not performed. The (pre-generated) prime 2976 table crypto/bn/bn_prime.h was already correct, but it could not be 2977 re-generated on some platforms because of the "division by zero" 2978 situation in the script. 2979 [Ralf S. Engelschall] 2980 2981 *) Update support for ECC-based TLS ciphersuites according to 2982 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 2983 SHA-1 now is only used for "small" curves (where the 2984 representation of a field element takes up to 24 bytes); for 2985 larger curves, the field element resulting from ECDH is directly 2986 used as premaster secret. 2987 [Douglas Stebila (Sun Microsystems Laboratories)] 2988 2989 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 2990 curve secp160r1 to the tests. 2991 [Douglas Stebila (Sun Microsystems Laboratories)] 2992 2993 *) Add the possibility to load symbols globally with DSO. 2994 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 2995 2996 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 2997 control of the error stack. 2998 [Richard Levitte] 2999 3000 *) Add support for STORE in ENGINE. 3001 [Richard Levitte] 3002 3003 *) Add the STORE type. The intention is to provide a common interface 3004 to certificate and key stores, be they simple file-based stores, or 3005 HSM-type store, or LDAP stores, or... 3006 NOTE: The code is currently UNTESTED and isn't really used anywhere. 3007 [Richard Levitte] 3008 3009 *) Add a generic structure called OPENSSL_ITEM. This can be used to 3010 pass a list of arguments to any function as well as provide a way 3011 for a function to pass data back to the caller. 3012 [Richard Levitte] 3013 3014 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 3015 works like BUF_strdup() but can be used to duplicate a portion of 3016 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 3017 a memory area. 3018 [Richard Levitte] 3019 3020 *) Add the function sk_find_ex() which works like sk_find(), but will 3021 return an index to an element even if an exact match couldn't be 3022 found. The index is guaranteed to point at the element where the 3023 searched-for key would be inserted to preserve sorting order. 3024 [Richard Levitte] 3025 3026 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 3027 takes an extra flags argument for optional functionality. Currently, 3028 the following flags are defined: 3029 3030 OBJ_BSEARCH_VALUE_ON_NOMATCH 3031 This one gets OBJ_bsearch_ex() to return a pointer to the first 3032 element where the comparing function returns a negative or zero 3033 number. 3034 3035 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 3036 This one gets OBJ_bsearch_ex() to return a pointer to the first 3037 element where the comparing function returns zero. This is useful 3038 if there are more than one element where the comparing function 3039 returns zero. 3040 [Richard Levitte] 3041 3042 *) Make it possible to create self-signed certificates with 'openssl ca' 3043 in such a way that the self-signed certificate becomes part of the 3044 CA database and uses the same mechanisms for serial number generation 3045 as all other certificate signing. The new flag '-selfsign' enables 3046 this functionality. Adapt CA.sh and CA.pl.in. 3047 [Richard Levitte] 3048 3049 *) Add functionality to check the public key of a certificate request 3050 against a given private. This is useful to check that a certificate 3051 request can be signed by that key (self-signing). 3052 [Richard Levitte] 3053 3054 *) Make it possible to have multiple active certificates with the same 3055 subject in the CA index file. This is done only if the keyword 3056 'unique_subject' is set to 'no' in the main CA section (default 3057 if 'CA_default') of the configuration file. The value is saved 3058 with the database itself in a separate index attribute file, 3059 named like the index file with '.attr' appended to the name. 3060 [Richard Levitte] 3061 3062 *) Generate muti valued AVAs using '+' notation in config files for 3063 req and dirName. 3064 [Steve Henson] 3065 3066 *) Support for nameConstraints certificate extension. 3067 [Steve Henson] 3068 3069 *) Support for policyConstraints certificate extension. 3070 [Steve Henson] 3071 3072 *) Support for policyMappings certificate extension. 3073 [Steve Henson] 3074 3075 *) Make sure the default DSA_METHOD implementation only uses its 3076 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3077 and change its own handlers to be NULL so as to remove unnecessary 3078 indirection. This lets alternative implementations fallback to the 3079 default implementation more easily. 3080 [Geoff Thorpe] 3081 3082 *) Support for directoryName in GeneralName related extensions 3083 in config files. 3084 [Steve Henson] 3085 3086 *) Make it possible to link applications using Makefile.shared. 3087 Make that possible even when linking against static libraries! 3088 [Richard Levitte] 3089 3090 *) Support for single pass processing for S/MIME signing. This now 3091 means that S/MIME signing can be done from a pipe, in addition 3092 cleartext signing (multipart/signed type) is effectively streaming 3093 and the signed data does not need to be all held in memory. 3094 3095 This is done with a new flag PKCS7_STREAM. When this flag is set 3096 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3097 is done after the data is output (and digests calculated) in 3098 SMIME_write_PKCS7(). 3099 [Steve Henson] 3100 3101 *) Add full support for -rpath/-R, both in shared libraries and 3102 applications, at least on the platforms where it's known how 3103 to do it. 3104 [Richard Levitte] 3105 3106 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3107 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3108 will now compute a table of multiples of the generator that 3109 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3110 faster (notably in the case of a single point multiplication, 3111 scalar * generator). 3112 [Nils Larsch, Bodo Moeller] 3113 3114 *) IPv6 support for certificate extensions. The various extensions 3115 which use the IP:a.b.c.d can now take IPv6 addresses using the 3116 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3117 correctly. 3118 [Steve Henson] 3119 3120 *) Added an ENGINE that implements RSA by performing private key 3121 exponentiations with the GMP library. The conversions to and from 3122 GMP's mpz_t format aren't optimised nor are any montgomery forms 3123 cached, and on x86 it appears OpenSSL's own performance has caught up. 3124 However there are likely to be other architectures where GMP could 3125 provide a boost. This ENGINE is not built in by default, but it can be 3126 specified at Configure time and should be accompanied by the necessary 3127 linker additions, eg; 3128 ./config -DOPENSSL_USE_GMP -lgmp 3129 [Geoff Thorpe] 3130 3131 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3132 testing availability of engines with "-t" - the old behaviour is 3133 produced by increasing the feature's verbosity with "-tt". 3134 [Geoff Thorpe] 3135 3136 *) ECDSA routines: under certain error conditions uninitialized BN objects 3137 could be freed. Solution: make sure initialization is performed early 3138 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3139 via PR#459) 3140 [Lutz Jaenicke] 3141 3142 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3143 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3144 software implementations. For DSA and DH, parameter generation can 3145 also be overriden by providing the appropriate method callbacks. 3146 [Geoff Thorpe] 3147 3148 *) Change the "progress" mechanism used in key-generation and 3149 primality testing to functions that take a new BN_GENCB pointer in 3150 place of callback/argument pairs. The new API functions have "_ex" 3151 postfixes and the older functions are reimplemented as wrappers for 3152 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3153 declarations of the old functions to help (graceful) attempts to 3154 migrate to the new functions. Also, the new key-generation API 3155 functions operate on a caller-supplied key-structure and return 3156 success/failure rather than returning a key or NULL - this is to 3157 help make "keygen" another member function of RSA_METHOD etc. 3158 3159 Example for using the new callback interface: 3160 3161 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3162 void *my_arg = ...; 3163 BN_GENCB my_cb; 3164 3165 BN_GENCB_set(&my_cb, my_callback, my_arg); 3166 3167 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3168 /* For the meaning of a, b in calls to my_callback(), see the 3169 * documentation of the function that calls the callback. 3170 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3171 * my_callback should return 1 if it wants BN_is_prime_ex() 3172 * to continue, or 0 to stop. 3173 */ 3174 3175 [Geoff Thorpe] 3176 3177 *) Change the ZLIB compression method to be stateful, and make it 3178 available to TLS with the number defined in 3179 draft-ietf-tls-compression-04.txt. 3180 [Richard Levitte] 3181 3182 *) Add the ASN.1 structures and functions for CertificatePair, which 3183 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3184 3185 CertificatePair ::= SEQUENCE { 3186 forward [0] Certificate OPTIONAL, 3187 reverse [1] Certificate OPTIONAL, 3188 -- at least one of the pair shall be present -- } 3189 3190 Also implement the PEM functions to read and write certificate 3191 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3192 3193 This needed to be defined, mostly for the sake of the LDAP 3194 attribute crossCertificatePair, but may prove useful elsewhere as 3195 well. 3196 [Richard Levitte] 3197 3198 *) Make it possible to inhibit symlinking of shared libraries in 3199 Makefile.shared, for Cygwin's sake. 3200 [Richard Levitte] 3201 3202 *) Extend the BIGNUM API by creating a function 3203 void BN_set_negative(BIGNUM *a, int neg); 3204 and a macro that behave like 3205 int BN_is_negative(const BIGNUM *a); 3206 3207 to avoid the need to access 'a->neg' directly in applications. 3208 [Nils Larsch] 3209 3210 *) Implement fast modular reduction for pseudo-Mersenne primes 3211 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3212 EC_GROUP_new_curve_GFp() will now automatically use this 3213 if applicable. 3214 [Nils Larsch <nla@trustcenter.de>] 3215 3216 *) Add new lock type (CRYPTO_LOCK_BN). 3217 [Bodo Moeller] 3218 3219 *) Change the ENGINE framework to automatically load engines 3220 dynamically from specific directories unless they could be 3221 found to already be built in or loaded. Move all the 3222 current engines except for the cryptodev one to a new 3223 directory engines/. 3224 The engines in engines/ are built as shared libraries if 3225 the "shared" options was given to ./Configure or ./config. 3226 Otherwise, they are inserted in libcrypto.a. 3227 /usr/local/ssl/engines is the default directory for dynamic 3228 engines, but that can be overriden at configure time through 3229 the usual use of --prefix and/or --openssldir, and at run 3230 time with the environment variable OPENSSL_ENGINES. 3231 [Geoff Thorpe and Richard Levitte] 3232 3233 *) Add Makefile.shared, a helper makefile to build shared 3234 libraries. Addapt Makefile.org. 3235 [Richard Levitte] 3236 3237 *) Add version info to Win32 DLLs. 3238 [Peter 'Luna' Runestig" <peter@runestig.com>] 3239 3240 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3241 can be added using this API to created arbitrary PKCS#12 3242 files while avoiding the low level API. 3243 3244 New options to PKCS12_create(), key or cert can be NULL and 3245 will then be omitted from the output file. The encryption 3246 algorithm NIDs can be set to -1 for no encryption, the mac 3247 iteration count can be set to 0 to omit the mac. 3248 3249 Enhance pkcs12 utility by making the -nokeys and -nocerts 3250 options work when creating a PKCS#12 file. New option -nomac 3251 to omit the mac, NONE can be set for an encryption algorithm. 3252 New code is modified to use the enhanced PKCS12_create() 3253 instead of the low level API. 3254 [Steve Henson] 3255 3256 *) Extend ASN1 encoder to support indefinite length constructed 3257 encoding. This can output sequences tags and octet strings in 3258 this form. Modify pk7_asn1.c to support indefinite length 3259 encoding. This is experimental and needs additional code to 3260 be useful, such as an ASN1 bio and some enhanced streaming 3261 PKCS#7 code. 3262 3263 Extend template encode functionality so that tagging is passed 3264 down to the template encoder. 3265 [Steve Henson] 3266 3267 *) Let 'openssl req' fail if an argument to '-newkey' is not 3268 recognized instead of using RSA as a default. 3269 [Bodo Moeller] 3270 3271 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3272 As these are not official, they are not included in "ALL"; 3273 the "ECCdraft" ciphersuite group alias can be used to select them. 3274 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3275 3276 *) Add ECDH engine support. 3277 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3278 3279 *) Add ECDH in new directory crypto/ecdh/. 3280 [Douglas Stebila (Sun Microsystems Laboratories)] 3281 3282 *) Let BN_rand_range() abort with an error after 100 iterations 3283 without success (which indicates a broken PRNG). 3284 [Bodo Moeller] 3285 3286 *) Change BN_mod_sqrt() so that it verifies that the input value 3287 is really the square of the return value. (Previously, 3288 BN_mod_sqrt would show GIGO behaviour.) 3289 [Bodo Moeller] 3290 3291 *) Add named elliptic curves over binary fields from X9.62, SECG, 3292 and WAP/WTLS; add OIDs that were still missing. 3293 3294 [Sheueling Chang Shantz and Douglas Stebila 3295 (Sun Microsystems Laboratories)] 3296 3297 *) Extend the EC library for elliptic curves over binary fields 3298 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3299 New EC_METHOD: 3300 3301 EC_GF2m_simple_method 3302 3303 New API functions: 3304 3305 EC_GROUP_new_curve_GF2m 3306 EC_GROUP_set_curve_GF2m 3307 EC_GROUP_get_curve_GF2m 3308 EC_POINT_set_affine_coordinates_GF2m 3309 EC_POINT_get_affine_coordinates_GF2m 3310 EC_POINT_set_compressed_coordinates_GF2m 3311 3312 Point compression for binary fields is disabled by default for 3313 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3314 enable it). 3315 3316 As binary polynomials are represented as BIGNUMs, various members 3317 of the EC_GROUP and EC_POINT data structures can be shared 3318 between the implementations for prime fields and binary fields; 3319 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3320 are essentially identical to their ..._GFp counterparts. 3321 (For simplicity, the '..._GFp' prefix has been dropped from 3322 various internal method names.) 3323 3324 An internal 'field_div' method (similar to 'field_mul' and 3325 'field_sqr') has been added; this is used only for binary fields. 3326 3327 [Sheueling Chang Shantz and Douglas Stebila 3328 (Sun Microsystems Laboratories)] 3329 3330 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3331 through methods ('mul', 'precompute_mult'). 3332 3333 The generic implementations (now internally called 'ec_wNAF_mul' 3334 and 'ec_wNAF_precomputed_mult') remain the default if these 3335 methods are undefined. 3336 3337 [Sheueling Chang Shantz and Douglas Stebila 3338 (Sun Microsystems Laboratories)] 3339 3340 *) New function EC_GROUP_get_degree, which is defined through 3341 EC_METHOD. For curves over prime fields, this returns the bit 3342 length of the modulus. 3343 3344 [Sheueling Chang Shantz and Douglas Stebila 3345 (Sun Microsystems Laboratories)] 3346 3347 *) New functions EC_GROUP_dup, EC_POINT_dup. 3348 (These simply call ..._new and ..._copy). 3349 3350 [Sheueling Chang Shantz and Douglas Stebila 3351 (Sun Microsystems Laboratories)] 3352 3353 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3354 Polynomials are represented as BIGNUMs (where the sign bit is not 3355 used) in the following functions [macros]: 3356 3357 BN_GF2m_add 3358 BN_GF2m_sub [= BN_GF2m_add] 3359 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3360 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3361 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3362 BN_GF2m_mod_inv 3363 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3364 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3365 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3366 BN_GF2m_cmp [= BN_ucmp] 3367 3368 (Note that only the 'mod' functions are actually for fields GF(2^m). 3369 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3370 3371 For some functions, an the irreducible polynomial defining a 3372 field can be given as an 'unsigned int[]' with strictly 3373 decreasing elements giving the indices of those bits that are set; 3374 i.e., p[] represents the polynomial 3375 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3376 where 3377 p[0] > p[1] > ... > p[k] = 0. 3378 This applies to the following functions: 3379 3380 BN_GF2m_mod_arr 3381 BN_GF2m_mod_mul_arr 3382 BN_GF2m_mod_sqr_arr 3383 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3384 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3385 BN_GF2m_mod_exp_arr 3386 BN_GF2m_mod_sqrt_arr 3387 BN_GF2m_mod_solve_quad_arr 3388 BN_GF2m_poly2arr 3389 BN_GF2m_arr2poly 3390 3391 Conversion can be performed by the following functions: 3392 3393 BN_GF2m_poly2arr 3394 BN_GF2m_arr2poly 3395 3396 bntest.c has additional tests for binary polynomial arithmetic. 3397 3398 Two implementations for BN_GF2m_mod_div() are available. 3399 The default algorithm simply uses BN_GF2m_mod_inv() and 3400 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3401 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3402 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3403 3404 [Sheueling Chang Shantz and Douglas Stebila 3405 (Sun Microsystems Laboratories)] 3406 3407 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3408 functionality is disabled at compile-time. 3409 [Douglas Stebila <douglas.stebila@sun.com>] 3410 3411 *) Change default behaviour of 'openssl asn1parse' so that more 3412 information is visible when viewing, e.g., a certificate: 3413 3414 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3415 mode the content of non-printable OCTET STRINGs is output in a 3416 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3417 avoid the appearance of a printable string. 3418 [Nils Larsch <nla@trustcenter.de>] 3419 3420 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3421 functions 3422 EC_GROUP_set_asn1_flag() 3423 EC_GROUP_get_asn1_flag() 3424 EC_GROUP_set_point_conversion_form() 3425 EC_GROUP_get_point_conversion_form() 3426 These control ASN1 encoding details: 3427 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3428 has been set to OPENSSL_EC_NAMED_CURVE. 3429 - Points are encoded in uncompressed form by default; options for 3430 asn1_for are as for point2oct, namely 3431 POINT_CONVERSION_COMPRESSED 3432 POINT_CONVERSION_UNCOMPRESSED 3433 POINT_CONVERSION_HYBRID 3434 3435 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3436 functions 3437 EC_GROUP_set_seed() 3438 EC_GROUP_get0_seed() 3439 EC_GROUP_get_seed_len() 3440 This is used only for ASN1 purposes (so far). 3441 [Nils Larsch <nla@trustcenter.de>] 3442 3443 *) Add 'field_type' member to EC_METHOD, which holds the NID 3444 of the appropriate field type OID. The new function 3445 EC_METHOD_get_field_type() returns this value. 3446 [Nils Larsch <nla@trustcenter.de>] 3447 3448 *) Add functions 3449 EC_POINT_point2bn() 3450 EC_POINT_bn2point() 3451 EC_POINT_point2hex() 3452 EC_POINT_hex2point() 3453 providing useful interfaces to EC_POINT_point2oct() and 3454 EC_POINT_oct2point(). 3455 [Nils Larsch <nla@trustcenter.de>] 3456 3457 *) Change internals of the EC library so that the functions 3458 EC_GROUP_set_generator() 3459 EC_GROUP_get_generator() 3460 EC_GROUP_get_order() 3461 EC_GROUP_get_cofactor() 3462 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3463 to methods, which would lead to unnecessary code duplication when 3464 adding different types of curves. 3465 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3466 3467 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3468 arithmetic, and such that modified wNAFs are generated 3469 (which avoid length expansion in many cases). 3470 [Bodo Moeller] 3471 3472 *) Add a function EC_GROUP_check_discriminant() (defined via 3473 EC_METHOD) that verifies that the curve discriminant is non-zero. 3474 3475 Add a function EC_GROUP_check() that makes some sanity tests 3476 on a EC_GROUP, its generator and order. This includes 3477 EC_GROUP_check_discriminant(). 3478 [Nils Larsch <nla@trustcenter.de>] 3479 3480 *) Add ECDSA in new directory crypto/ecdsa/. 3481 3482 Add applications 'openssl ecparam' and 'openssl ecdsa' 3483 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3484 3485 ECDSA support is also included in various other files across the 3486 library. Most notably, 3487 - 'openssl req' now has a '-newkey ecdsa:file' option; 3488 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3489 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3490 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3491 them suitable for ECDSA where domain parameters must be 3492 extracted before the specific public key; 3493 - ECDSA engine support has been added. 3494 [Nils Larsch <nla@trustcenter.de>] 3495 3496 *) Include some named elliptic curves, and add OIDs from X9.62, 3497 SECG, and WAP/WTLS. Each curve can be obtained from the new 3498 function 3499 EC_GROUP_new_by_curve_name(), 3500 and the list of available named curves can be obtained with 3501 EC_get_builtin_curves(). 3502 Also add a 'curve_name' member to EC_GROUP objects, which can be 3503 accessed via 3504 EC_GROUP_set_curve_name() 3505 EC_GROUP_get_curve_name() 3506 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3507 3508 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3509 was actually never needed) and in BN_mul(). The removal in BN_mul() 3510 required a small change in bn_mul_part_recursive() and the addition 3511 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3512 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3513 bn_sub_words() and bn_add_words() except they take arrays with 3514 differing sizes. 3515 [Richard Levitte] 3516 3517 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3518 3519 *) Cleanse PEM buffers before freeing them since they may contain 3520 sensitive data. 3521 [Benjamin Bennett <ben@psc.edu>] 3522 3523 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3524 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3525 authentication-only ciphersuites. 3526 [Bodo Moeller] 3527 3528 *) Since AES128 and AES256 share a single mask bit in the logic of 3529 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3530 kludge to work properly if AES128 is available and AES256 isn't. 3531 [Victor Duchovni] 3532 3533 *) Expand security boundary to match 1.1.1 module. 3534 [Steve Henson] 3535 3536 *) Remove redundant features: hash file source, editing of test vectors 3537 modify fipsld to use external fips_premain.c signature. 3538 [Steve Henson] 3539 3540 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3541 run algorithm test programs. 3542 [Steve Henson] 3543 3544 *) Make algorithm test programs more tolerant of whitespace. 3545 [Steve Henson] 3546 3547 *) Have SSL/TLS server implementation tolerate "mismatched" record 3548 protocol version while receiving ClientHello even if the 3549 ClientHello is fragmented. (The server can't insist on the 3550 particular protocol version it has chosen before the ServerHello 3551 message has informed the client about his choice.) 3552 [Bodo Moeller] 3553 3554 *) Load error codes if they are not already present instead of using a 3555 static variable. This allows them to be cleanly unloaded and reloaded. 3556 [Steve Henson] 3557 3558 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3559 3560 *) Introduce limits to prevent malicious keys being able to 3561 cause a denial of service. (CVE-2006-2940) 3562 [Steve Henson, Bodo Moeller] 3563 3564 *) Fix ASN.1 parsing of certain invalid structures that can result 3565 in a denial of service. (CVE-2006-2937) [Steve Henson] 3566 3567 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3568 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3569 3570 *) Fix SSL client code which could crash if connecting to a 3571 malicious SSLv2 server. (CVE-2006-4343) 3572 [Tavis Ormandy and Will Drewry, Google Security Team] 3573 3574 *) Change ciphersuite string processing so that an explicit 3575 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3576 will no longer include "AES128-SHA"), and any other similar 3577 ciphersuite (same bitmap) from *other* protocol versions (so that 3578 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3579 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3580 changes from 0.9.8b and 0.9.8d. 3581 [Bodo Moeller] 3582 3583 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3584 3585 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3586 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3587 3588 *) Change the Unix randomness entropy gathering to use poll() when 3589 possible instead of select(), since the latter has some 3590 undesirable limitations. 3591 [Darryl Miles via Richard Levitte and Bodo Moeller] 3592 3593 *) Disable rogue ciphersuites: 3594 3595 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3596 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3597 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3598 3599 The latter two were purportedly from 3600 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3601 appear there. 3602 3603 Also deactive the remaining ciphersuites from 3604 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3605 unofficial, and the ID has long expired. 3606 [Bodo Moeller] 3607 3608 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3609 dual-core machines) and other potential thread-safety issues. 3610 [Bodo Moeller] 3611 3612 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3613 3614 *) Adapt fipsld and the build system to link against the validated FIPS 3615 module in FIPS mode. 3616 [Steve Henson] 3617 3618 *) Fixes for VC++ 2005 build under Windows. 3619 [Steve Henson] 3620 3621 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3622 from a Windows bash shell such as MSYS. It is autodetected from the 3623 "config" script when run from a VC++ environment. Modify standard VC++ 3624 build to use fipscanister.o from the GNU make build. 3625 [Steve Henson] 3626 3627 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3628 3629 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3630 The value now differs depending on if you build for FIPS or not. 3631 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3632 safely run with a non-FIPSed libcrypto, as it may crash because of 3633 the difference induced by this change. 3634 [Andy Polyakov] 3635 3636 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3637 3638 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3639 (part of SSL_OP_ALL). This option used to disable the 3640 countermeasure against man-in-the-middle protocol-version 3641 rollback in the SSL 2.0 server implementation, which is a bad 3642 idea. (CVE-2005-2969) 3643 3644 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3645 for Information Security, National Institute of Advanced Industrial 3646 Science and Technology [AIST], Japan)] 3647 3648 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3649 mainly for FIPS compliance and not fully integrated at this stage. 3650 [Steve Henson] 3651 3652 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3653 the exponentiation using a fixed-length exponent. (Otherwise, 3654 the information leaked through timing could expose the secret key 3655 after many signatures; cf. Bleichenbacher's attack on DSA with 3656 biased k.) 3657 [Bodo Moeller] 3658 3659 *) Make a new fixed-window mod_exp implementation the default for 3660 RSA, DSA, and DH private-key operations so that the sequence of 3661 squares and multiplies and the memory access pattern are 3662 independent of the particular secret key. This will mitigate 3663 cache-timing and potential related attacks. 3664 3665 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3666 and this is automatically used by BN_mod_exp_mont() if the new flag 3667 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3668 will use this BN flag for private exponents unless the flag 3669 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3670 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3671 3672 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3673 3674 *) Change the client implementation for SSLv23_method() and 3675 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3676 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3677 (Previously, the SSL 2.0 backwards compatible Client Hello 3678 message format would be used even with SSL_OP_NO_SSLv2.) 3679 [Bodo Moeller] 3680 3681 *) Add support for smime-type MIME parameter in S/MIME messages which some 3682 clients need. 3683 [Steve Henson] 3684 3685 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3686 a threadsafe manner. Modify rsa code to use new function and add calls 3687 to dsa and dh code (which had race conditions before). 3688 [Steve Henson] 3689 3690 *) Include the fixed error library code in the C error file definitions 3691 instead of fixing them up at runtime. This keeps the error code 3692 structures constant. 3693 [Steve Henson] 3694 3695 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3696 3697 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3698 OpenSSL 0.9.8.] 3699 3700 *) Fixes for newer kerberos headers. NB: the casts are needed because 3701 the 'length' field is signed on one version and unsigned on another 3702 with no (?) obvious way to tell the difference, without these VC++ 3703 complains. Also the "definition" of FAR (blank) is no longer included 3704 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3705 some needed definitions. 3706 [Steve Henson] 3707 3708 *) Undo Cygwin change. 3709 [Ulf M�ller] 3710 3711 *) Added support for proxy certificates according to RFC 3820. 3712 Because they may be a security thread to unaware applications, 3713 they must be explicitely allowed in run-time. See 3714 docs/HOWTO/proxy_certificates.txt for further information. 3715 [Richard Levitte] 3716 3717 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3718 3719 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3720 server and client random values. Previously 3721 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3722 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3723 3724 This change has negligible security impact because: 3725 3726 1. Server and client random values still have 24 bytes of pseudo random 3727 data. 3728 3729 2. Server and client random values are sent in the clear in the initial 3730 handshake. 3731 3732 3. The master secret is derived using the premaster secret (48 bytes in 3733 size for static RSA ciphersuites) as well as client server and random 3734 values. 3735 3736 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3737 to our attention. 3738 3739 [Stephen Henson, reported by UK NISCC] 3740 3741 *) Use Windows randomness collection on Cygwin. 3742 [Ulf M�ller] 3743 3744 *) Fix hang in EGD/PRNGD query when communication socket is closed 3745 prematurely by EGD/PRNGD. 3746 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3747 3748 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3749 [Steve Henson] 3750 3751 *) Back-port of selected performance improvements from development 3752 branch, as well as improved support for PowerPC platforms. 3753 [Andy Polyakov] 3754 3755 *) Add lots of checks for memory allocation failure, error codes to indicate 3756 failure and freeing up memory if a failure occurs. 3757 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3758 3759 *) Add new -passin argument to dgst. 3760 [Steve Henson] 3761 3762 *) Perform some character comparisons of different types in X509_NAME_cmp: 3763 this is needed for some certificates that reencode DNs into UTF8Strings 3764 (in violation of RFC3280) and can't or wont issue name rollover 3765 certificates. 3766 [Steve Henson] 3767 3768 *) Make an explicit check during certificate validation to see that 3769 the CA setting in each certificate on the chain is correct. As a 3770 side effect always do the following basic checks on extensions, 3771 not just when there's an associated purpose to the check: 3772 3773 - if there is an unhandled critical extension (unless the user 3774 has chosen to ignore this fault) 3775 - if the path length has been exceeded (if one is set at all) 3776 - that certain extensions fit the associated purpose (if one has 3777 been given) 3778 [Richard Levitte] 3779 3780 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3781 3782 *) Avoid a race condition when CRLs are checked in a multi threaded 3783 environment. This would happen due to the reordering of the revoked 3784 entries during signature checking and serial number lookup. Now the 3785 encoding is cached and the serial number sort performed under a lock. 3786 Add new STACK function sk_is_sorted(). 3787 [Steve Henson] 3788 3789 *) Add Delta CRL to the extension code. 3790 [Steve Henson] 3791 3792 *) Various fixes to s3_pkt.c so alerts are sent properly. 3793 [David Holmes <d.holmes@f5.com>] 3794 3795 *) Reduce the chances of duplicate issuer name and serial numbers (in 3796 violation of RFC3280) using the OpenSSL certificate creation utilities. 3797 This is done by creating a random 64 bit value for the initial serial 3798 number when a serial number file is created or when a self signed 3799 certificate is created using 'openssl req -x509'. The initial serial 3800 number file is created using 'openssl x509 -next_serial' in CA.pl 3801 rather than being initialized to 1. 3802 [Steve Henson] 3803 3804 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3805 3806 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3807 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3808 [Joe Orton, Steve Henson] 3809 3810 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3811 (CVE-2004-0112) 3812 [Joe Orton, Steve Henson] 3813 3814 *) Make it possible to have multiple active certificates with the same 3815 subject in the CA index file. This is done only if the keyword 3816 'unique_subject' is set to 'no' in the main CA section (default 3817 if 'CA_default') of the configuration file. The value is saved 3818 with the database itself in a separate index attribute file, 3819 named like the index file with '.attr' appended to the name. 3820 [Richard Levitte] 3821 3822 *) X509 verify fixes. Disable broken certificate workarounds when 3823 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3824 keyUsage extension present. Don't accept CRLs with unhandled critical 3825 extensions: since verify currently doesn't process CRL extensions this 3826 rejects a CRL with *any* critical extensions. Add new verify error codes 3827 for these cases. 3828 [Steve Henson] 3829 3830 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3831 A clarification of RFC2560 will require the use of OCTET STRINGs and 3832 some implementations cannot handle the current raw format. Since OpenSSL 3833 copies and compares OCSP nonces as opaque blobs without any attempt at 3834 parsing them this should not create any compatibility issues. 3835 [Steve Henson] 3836 3837 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3838 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3839 this HMAC (and other) operations are several times slower than OpenSSL 3840 < 0.9.7. 3841 [Steve Henson] 3842 3843 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3844 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3845 3846 *) Use the correct content when signing type "other". 3847 [Steve Henson] 3848 3849 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3850 3851 *) Fix various bugs revealed by running the NISCC test suite: 3852 3853 Stop out of bounds reads in the ASN1 code when presented with 3854 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3855 3856 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3857 3858 If verify callback ignores invalid public key errors don't try to check 3859 certificate signature with the NULL public key. 3860 3861 [Steve Henson] 3862 3863 *) New -ignore_err option in ocsp application to stop the server 3864 exiting on the first error in a request. 3865 [Steve Henson] 3866 3867 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3868 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3869 specifications. 3870 [Steve Henson] 3871 3872 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3873 extra data after the compression methods not only for TLS 1.0 3874 but also for SSL 3.0 (as required by the specification). 3875 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3876 3877 *) Change X509_certificate_type() to mark the key as exported/exportable 3878 when it's 512 *bits* long, not 512 bytes. 3879 [Richard Levitte] 3880 3881 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3882 blocks during encryption. 3883 [Richard Levitte] 3884 3885 *) Various fixes to base64 BIO and non blocking I/O. On write 3886 flushes were not handled properly if the BIO retried. On read 3887 data was not being buffered properly and had various logic bugs. 3888 This also affects blocking I/O when the data being decoded is a 3889 certain size. 3890 [Steve Henson] 3891 3892 *) Various S/MIME bugfixes and compatibility changes: 3893 output correct application/pkcs7 MIME type if 3894 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3895 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3896 of files as .eml work). Correctly handle very long lines in MIME 3897 parser. 3898 [Steve Henson] 3899 3900 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3901 3902 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3903 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3904 a protocol version number mismatch like a decryption error 3905 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3906 [Bodo Moeller] 3907 3908 *) Turn on RSA blinding by default in the default implementation 3909 to avoid a timing attack. Applications that don't want it can call 3910 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 3911 They would be ill-advised to do so in most cases. 3912 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 3913 3914 *) Change RSA blinding code so that it works when the PRNG is not 3915 seeded (in this case, the secret RSA exponent is abused as 3916 an unpredictable seed -- if it is not unpredictable, there 3917 is no point in blinding anyway). Make RSA blinding thread-safe 3918 by remembering the creator's thread ID in rsa->blinding and 3919 having all other threads use local one-time blinding factors 3920 (this requires more computation than sharing rsa->blinding, but 3921 avoids excessive locking; and if an RSA object is not shared 3922 between threads, blinding will still be very fast). 3923 [Bodo Moeller] 3924 3925 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 3926 ENGINE as defaults for all supported algorithms irrespective of 3927 the 'flags' parameter. 'flags' is now honoured, so applications 3928 should make sure they are passing it correctly. 3929 [Geoff Thorpe] 3930 3931 *) Target "mingw" now allows native Windows code to be generated in 3932 the Cygwin environment as well as with the MinGW compiler. 3933 [Ulf Moeller] 3934 3935 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 3936 3937 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 3938 via timing by performing a MAC computation even if incorrrect 3939 block cipher padding has been found. This is a countermeasure 3940 against active attacks where the attacker has to distinguish 3941 between bad padding and a MAC verification error. (CVE-2003-0078) 3942 3943 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 3944 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 3945 Martin Vuagnoux (EPFL, Ilion)] 3946 3947 *) Make the no-err option work as intended. The intention with no-err 3948 is not to have the whole error stack handling routines removed from 3949 libcrypto, it's only intended to remove all the function name and 3950 reason texts, thereby removing some of the footprint that may not 3951 be interesting if those errors aren't displayed anyway. 3952 3953 NOTE: it's still possible for any application or module to have it's 3954 own set of error texts inserted. The routines are there, just not 3955 used by default when no-err is given. 3956 [Richard Levitte] 3957 3958 *) Add support for FreeBSD on IA64. 3959 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 3960 3961 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 3962 Kerberos function mit_des_cbc_cksum(). Before this change, 3963 the value returned by DES_cbc_cksum() was like the one from 3964 mit_des_cbc_cksum(), except the bytes were swapped. 3965 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 3966 3967 *) Allow an application to disable the automatic SSL chain building. 3968 Before this a rather primitive chain build was always performed in 3969 ssl3_output_cert_chain(): an application had no way to send the 3970 correct chain if the automatic operation produced an incorrect result. 3971 3972 Now the chain builder is disabled if either: 3973 3974 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 3975 3976 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 3977 3978 The reasoning behind this is that an application would not want the 3979 auto chain building to take place if extra chain certificates are 3980 present and it might also want a means of sending no additional 3981 certificates (for example the chain has two certificates and the 3982 root is omitted). 3983 [Steve Henson] 3984 3985 *) Add the possibility to build without the ENGINE framework. 3986 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 3987 3988 *) Under Win32 gmtime() can return NULL: check return value in 3989 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 3990 [Steve Henson] 3991 3992 *) DSA routines: under certain error conditions uninitialized BN objects 3993 could be freed. Solution: make sure initialization is performed early 3994 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 3995 Nils Larsch <nla@trustcenter.de> via PR#459) 3996 [Lutz Jaenicke] 3997 3998 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 3999 checked on reconnect on the client side, therefore session resumption 4000 could still fail with a "ssl session id is different" error. This 4001 behaviour is masked when SSL_OP_ALL is used due to 4002 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 4003 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4004 followup to PR #377. 4005 [Lutz Jaenicke] 4006 4007 *) IA-32 assembler support enhancements: unified ELF targets, support 4008 for SCO/Caldera platforms, fix for Cygwin shared build. 4009 [Andy Polyakov] 4010 4011 *) Add support for FreeBSD on sparc64. As a consequence, support for 4012 FreeBSD on non-x86 processors is separate from x86 processors on 4013 the config script, much like the NetBSD support. 4014 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 4015 4016 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 4017 4018 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 4019 OpenSSL 0.9.7.] 4020 4021 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 4022 code (06) was taken as the first octet of the session ID and the last 4023 octet was ignored consequently. As a result SSLv2 client side session 4024 caching could not have worked due to the session ID mismatch between 4025 client and server. 4026 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4027 PR #377. 4028 [Lutz Jaenicke] 4029 4030 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 4031 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 4032 removed entirely. 4033 [Richard Levitte] 4034 4035 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 4036 seems that in spite of existing for more than a year, many application 4037 author have done nothing to provide the necessary callbacks, which 4038 means that this particular engine will not work properly anywhere. 4039 This is a very unfortunate situation which forces us, in the name 4040 of usability, to give the hw_ncipher.c a static lock, which is part 4041 of libcrypto. 4042 NOTE: This is for the 0.9.7 series ONLY. This hack will never 4043 appear in 0.9.8 or later. We EXPECT application authors to have 4044 dealt properly with this when 0.9.8 is released (unless we actually 4045 make such changes in the libcrypto locking code that changes will 4046 have to be made anyway). 4047 [Richard Levitte] 4048 4049 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 4050 octets have been read, EOF or an error occurs. Without this change 4051 some truncated ASN1 structures will not produce an error. 4052 [Steve Henson] 4053 4054 *) Disable Heimdal support, since it hasn't been fully implemented. 4055 Still give the possibility to force the use of Heimdal, but with 4056 warnings and a request that patches get sent to openssl-dev. 4057 [Richard Levitte] 4058 4059 *) Add the VC-CE target, introduce the WINCE sysname, and add 4060 INSTALL.WCE and appropriate conditionals to make it build. 4061 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4062 4063 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 4064 cygssl-x.y.z.dll, where x, y and z are the major, minor and 4065 edit numbers of the version. 4066 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 4067 4068 *) Introduce safe string copy and catenation functions 4069 (BUF_strlcpy() and BUF_strlcat()). 4070 [Ben Laurie (CHATS) and Richard Levitte] 4071 4072 *) Avoid using fixed-size buffers for one-line DNs. 4073 [Ben Laurie (CHATS)] 4074 4075 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4076 resizing buffers containing secrets, and use where appropriate. 4077 [Ben Laurie (CHATS)] 4078 4079 *) Avoid using fixed size buffers for configuration file location. 4080 [Ben Laurie (CHATS)] 4081 4082 *) Avoid filename truncation for various CA files. 4083 [Ben Laurie (CHATS)] 4084 4085 *) Use sizeof in preference to magic numbers. 4086 [Ben Laurie (CHATS)] 4087 4088 *) Avoid filename truncation in cert requests. 4089 [Ben Laurie (CHATS)] 4090 4091 *) Add assertions to check for (supposedly impossible) buffer 4092 overflows. 4093 [Ben Laurie (CHATS)] 4094 4095 *) Don't cache truncated DNS entries in the local cache (this could 4096 potentially lead to a spoofing attack). 4097 [Ben Laurie (CHATS)] 4098 4099 *) Fix various buffers to be large enough for hex/decimal 4100 representations in a platform independent manner. 4101 [Ben Laurie (CHATS)] 4102 4103 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4104 resizing buffers containing secrets, and use where appropriate. 4105 [Ben Laurie (CHATS)] 4106 4107 *) Add BIO_indent() to avoid much slightly worrying code to do 4108 indents. 4109 [Ben Laurie (CHATS)] 4110 4111 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4112 [Ben Laurie (CHATS)] 4113 4114 *) buffer_gets() could terminate with the buffer only half 4115 full. Fixed. 4116 [Ben Laurie (CHATS)] 4117 4118 *) Add assertions to prevent user-supplied crypto functions from 4119 overflowing internal buffers by having large block sizes, etc. 4120 [Ben Laurie (CHATS)] 4121 4122 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4123 unconditionally). 4124 [Ben Laurie (CHATS)] 4125 4126 *) Eliminate unused copy of key in RC4. 4127 [Ben Laurie (CHATS)] 4128 4129 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4130 [Ben Laurie (CHATS)] 4131 4132 *) Fix off-by-one error in EGD path. 4133 [Ben Laurie (CHATS)] 4134 4135 *) If RANDFILE path is too long, ignore instead of truncating. 4136 [Ben Laurie (CHATS)] 4137 4138 *) Eliminate unused and incorrectly sized X.509 structure 4139 CBCParameter. 4140 [Ben Laurie (CHATS)] 4141 4142 *) Eliminate unused and dangerous function knumber(). 4143 [Ben Laurie (CHATS)] 4144 4145 *) Eliminate unused and dangerous structure, KSSL_ERR. 4146 [Ben Laurie (CHATS)] 4147 4148 *) Protect against overlong session ID context length in an encoded 4149 session object. Since these are local, this does not appear to be 4150 exploitable. 4151 [Ben Laurie (CHATS)] 4152 4153 *) Change from security patch (see 0.9.6e below) that did not affect 4154 the 0.9.6 release series: 4155 4156 Remote buffer overflow in SSL3 protocol - an attacker could 4157 supply an oversized master key in Kerberos-enabled versions. 4158 (CVE-2002-0657) 4159 [Ben Laurie (CHATS)] 4160 4161 *) Change the SSL kerb5 codes to match RFC 2712. 4162 [Richard Levitte] 4163 4164 *) Make -nameopt work fully for req and add -reqopt switch. 4165 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4166 4167 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4168 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4169 4170 *) Make sure tests can be performed even if the corresponding algorithms 4171 have been removed entirely. This was also the last step to make 4172 OpenSSL compilable with DJGPP under all reasonable conditions. 4173 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4174 4175 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4176 to allow version independent disabling of normally unselected ciphers, 4177 which may be activated as a side-effect of selecting a single cipher. 4178 4179 (E.g., cipher list string "RSA" enables ciphersuites that are left 4180 out of "ALL" because they do not provide symmetric encryption. 4181 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4182 [Lutz Jaenicke, Bodo Moeller] 4183 4184 *) Add appropriate support for separate platform-dependent build 4185 directories. The recommended way to make a platform-dependent 4186 build directory is the following (tested on Linux), maybe with 4187 some local tweaks: 4188 4189 # Place yourself outside of the OpenSSL source tree. In 4190 # this example, the environment variable OPENSSL_SOURCE 4191 # is assumed to contain the absolute OpenSSL source directory. 4192 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4193 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4194 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4195 mkdir -p `dirname $F` 4196 ln -s $OPENSSL_SOURCE/$F $F 4197 done 4198 4199 To be absolutely sure not to disturb the source tree, a "make clean" 4200 is a good thing. If it isn't successfull, don't worry about it, 4201 it probably means the source directory is very clean. 4202 [Richard Levitte] 4203 4204 *) Make sure any ENGINE control commands make local copies of string 4205 pointers passed to them whenever necessary. Otherwise it is possible 4206 the caller may have overwritten (or deallocated) the original string 4207 data when a later ENGINE operation tries to use the stored values. 4208 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4209 4210 *) Improve diagnostics in file reading and command-line digests. 4211 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4212 4213 *) Add AES modes CFB and OFB to the object database. Correct an 4214 error in AES-CFB decryption. 4215 [Richard Levitte] 4216 4217 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4218 allows existing EVP_CIPHER_CTX structures to be reused after 4219 calling EVP_*Final(). This behaviour is used by encryption 4220 BIOs and some applications. This has the side effect that 4221 applications must explicitly clean up cipher contexts with 4222 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4223 [Steve Henson] 4224 4225 *) Check the values of dna and dnb in bn_mul_recursive before calling 4226 bn_mul_comba (a non zero value means the a or b arrays do not contain 4227 n2 elements) and fallback to bn_mul_normal if either is not zero. 4228 [Steve Henson] 4229 4230 *) Fix escaping of non-ASCII characters when using the -subj option 4231 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4232 [Lutz Jaenicke] 4233 4234 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4235 form for "surname", serialNumber has no short form. 4236 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4237 therefore remove "mail" short name for "internet 7". 4238 The OID for unique identifiers in X509 certificates is 4239 x500UniqueIdentifier, not uniqueIdentifier. 4240 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4241 [Lutz Jaenicke] 4242 4243 *) Add an "init" command to the ENGINE config module and auto initialize 4244 ENGINEs. Without any "init" command the ENGINE will be initialized 4245 after all ctrl commands have been executed on it. If init=1 the 4246 ENGINE is initailized at that point (ctrls before that point are run 4247 on the uninitialized ENGINE and after on the initialized one). If 4248 init=0 then the ENGINE will not be iniatialized at all. 4249 [Steve Henson] 4250 4251 *) Fix the 'app_verify_callback' interface so that the user-defined 4252 argument is actually passed to the callback: In the 4253 SSL_CTX_set_cert_verify_callback() prototype, the callback 4254 declaration has been changed from 4255 int (*cb)() 4256 into 4257 int (*cb)(X509_STORE_CTX *,void *); 4258 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4259 i=s->ctx->app_verify_callback(&ctx) 4260 has been changed into 4261 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4262 4263 To update applications using SSL_CTX_set_cert_verify_callback(), 4264 a dummy argument can be added to their callback functions. 4265 [D. K. Smetters <smetters@parc.xerox.com>] 4266 4267 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4268 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4269 4270 *) Add and OPENSSL_LOAD_CONF define which will cause 4271 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4272 This allows older applications to transparently support certain 4273 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4274 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4275 load the config file and OPENSSL_add_all_algorithms_conf() which will 4276 always load it have also been added. 4277 [Steve Henson] 4278 4279 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4280 Adjust NIDs and EVP layer. 4281 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4282 4283 *) Config modules support in openssl utility. 4284 4285 Most commands now load modules from the config file, 4286 though in a few (such as version) this isn't done 4287 because it couldn't be used for anything. 4288 4289 In the case of ca and req the config file used is 4290 the same as the utility itself: that is the -config 4291 command line option can be used to specify an 4292 alternative file. 4293 [Steve Henson] 4294 4295 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4296 use "openssl_conf" if filename is NULL use default openssl config file. 4297 [Steve Henson] 4298 4299 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4300 config section name. Add a new flag to tolerate a missing config file 4301 and move code to CONF_modules_load_file(). 4302 [Steve Henson] 4303 4304 *) Support for crypto accelerator cards from Accelerated Encryption 4305 Processing, www.aep.ie. (Use engine 'aep') 4306 The support was copied from 0.9.6c [engine] and adapted/corrected 4307 to work with the new engine framework. 4308 [AEP Inc. and Richard Levitte] 4309 4310 *) Support for SureWare crypto accelerator cards from Baltimore 4311 Technologies. (Use engine 'sureware') 4312 The support was copied from 0.9.6c [engine] and adapted 4313 to work with the new engine framework. 4314 [Richard Levitte] 4315 4316 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4317 make the newer ENGINE framework commands for the CHIL engine work. 4318 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4319 4320 *) Make it possible to produce shared libraries on ReliantUNIX. 4321 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4322 4323 *) Add the configuration target debug-linux-ppro. 4324 Make 'openssl rsa' use the general key loading routines 4325 implemented in apps.c, and make those routines able to 4326 handle the key format FORMAT_NETSCAPE and the variant 4327 FORMAT_IISSGC. 4328 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4329 4330 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4331 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4332 4333 *) Add -keyform to rsautl, and document -engine. 4334 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4335 4336 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4337 BIO_R_NO_SUCH_FILE error code rather than the generic 4338 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4339 [Ben Laurie] 4340 4341 *) Add new functions 4342 ERR_peek_last_error 4343 ERR_peek_last_error_line 4344 ERR_peek_last_error_line_data. 4345 These are similar to 4346 ERR_peek_error 4347 ERR_peek_error_line 4348 ERR_peek_error_line_data, 4349 but report on the latest error recorded rather than the first one 4350 still in the error queue. 4351 [Ben Laurie, Bodo Moeller] 4352 4353 *) default_algorithms option in ENGINE config module. This allows things 4354 like: 4355 default_algorithms = ALL 4356 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4357 [Steve Henson] 4358 4359 *) Prelminary ENGINE config module. 4360 [Steve Henson] 4361 4362 *) New experimental application configuration code. 4363 [Steve Henson] 4364 4365 *) Change the AES code to follow the same name structure as all other 4366 symmetric ciphers, and behave the same way. Move everything to 4367 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4368 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4369 4370 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4371 [Ben Laurie and Theo de Raadt] 4372 4373 *) Add option to output public keys in req command. 4374 [Massimiliano Pala madwolf@openca.org] 4375 4376 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4377 (up to about 10% better than before for P-192 and P-224). 4378 [Bodo Moeller] 4379 4380 *) New functions/macros 4381 4382 SSL_CTX_set_msg_callback(ctx, cb) 4383 SSL_CTX_set_msg_callback_arg(ctx, arg) 4384 SSL_set_msg_callback(ssl, cb) 4385 SSL_set_msg_callback_arg(ssl, arg) 4386 4387 to request calling a callback function 4388 4389 void cb(int write_p, int version, int content_type, 4390 const void *buf, size_t len, SSL *ssl, void *arg) 4391 4392 whenever a protocol message has been completely received 4393 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4394 protocol version according to which the SSL library interprets 4395 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4396 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4397 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4398 specification (change_cipher_spec(20), alert(21), handshake(22)). 4399 'buf' and 'len' point to the actual message, 'ssl' to the 4400 SSL object, and 'arg' is the application-defined value set by 4401 SSL[_CTX]_set_msg_callback_arg(). 4402 4403 'openssl s_client' and 'openssl s_server' have new '-msg' options 4404 to enable a callback that displays all protocol messages. 4405 [Bodo Moeller] 4406 4407 *) Change the shared library support so shared libraries are built as 4408 soon as the corresponding static library is finished, and thereby get 4409 openssl and the test programs linked against the shared library. 4410 This still only happens when the keyword "shard" has been given to 4411 the configuration scripts. 4412 4413 NOTE: shared library support is still an experimental thing, and 4414 backward binary compatibility is still not guaranteed. 4415 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4416 4417 *) Add support for Subject Information Access extension. 4418 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4419 4420 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4421 additional bytes when new memory had to be allocated, not just 4422 when reusing an existing buffer. 4423 [Bodo Moeller] 4424 4425 *) New command line and configuration option 'utf8' for the req command. 4426 This allows field values to be specified as UTF8 strings. 4427 [Steve Henson] 4428 4429 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4430 runs for the former and machine-readable output for the latter. 4431 [Ben Laurie] 4432 4433 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4434 of the e-mail address in the DN (i.e., it will go into a certificate 4435 extension only). The new configuration file option 'email_in_dn = no' 4436 has the same effect. 4437 [Massimiliano Pala madwolf@openca.org] 4438 4439 *) Change all functions with names starting with des_ to be starting 4440 with DES_ instead. Add wrappers that are compatible with libdes, 4441 but are named _ossl_old_des_*. Finally, add macros that map the 4442 des_* symbols to the corresponding _ossl_old_des_* if libdes 4443 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4444 desired, the des_* symbols will be mapped to DES_*, with one 4445 exception. 4446 4447 Since we provide two compatibility mappings, the user needs to 4448 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4449 compatibility is desired. The default (i.e., when that macro 4450 isn't defined) is OpenSSL 0.9.6c compatibility. 4451 4452 There are also macros that enable and disable the support of old 4453 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4454 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4455 are defined, the default will apply: to support the old des routines. 4456 4457 In either case, one must include openssl/des.h to get the correct 4458 definitions. Do not try to just include openssl/des_old.h, that 4459 won't work. 4460 4461 NOTE: This is a major break of an old API into a new one. Software 4462 authors are encouraged to switch to the DES_ style functions. Some 4463 time in the future, des_old.h and the libdes compatibility functions 4464 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4465 default), and then completely removed. 4466 [Richard Levitte] 4467 4468 *) Test for certificates which contain unsupported critical extensions. 4469 If such a certificate is found during a verify operation it is 4470 rejected by default: this behaviour can be overridden by either 4471 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4472 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4473 X509_supported_extension() has also been added which returns 1 if a 4474 particular extension is supported. 4475 [Steve Henson] 4476 4477 *) Modify the behaviour of EVP cipher functions in similar way to digests 4478 to retain compatibility with existing code. 4479 [Steve Henson] 4480 4481 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4482 compatibility with existing code. In particular the 'ctx' parameter does 4483 not have to be to be initialized before the call to EVP_DigestInit() and 4484 it is tidied up after a call to EVP_DigestFinal(). New function 4485 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4486 EVP_MD_CTX_copy() changed to not require the destination to be 4487 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4488 requires the destination to be valid. 4489 4490 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4491 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4492 [Steve Henson] 4493 4494 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4495 so that complete 'Handshake' protocol structures are kept in memory 4496 instead of overwriting 'msg_type' and 'length' with 'body' data. 4497 [Bodo Moeller] 4498 4499 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4500 [Massimo Santin via Richard Levitte] 4501 4502 *) Major restructuring to the underlying ENGINE code. This includes 4503 reduction of linker bloat, separation of pure "ENGINE" manipulation 4504 (initialisation, etc) from functionality dealing with implementations 4505 of specific crypto iterfaces. This change also introduces integrated 4506 support for symmetric ciphers and digest implementations - so ENGINEs 4507 can now accelerate these by providing EVP_CIPHER and EVP_MD 4508 implementations of their own. This is detailed in crypto/engine/README 4509 as it couldn't be adequately described here. However, there are a few 4510 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4511 were changed in the original introduction of ENGINE code have now 4512 reverted back - the hooking from this code to ENGINE is now a good 4513 deal more passive and at run-time, operations deal directly with 4514 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4515 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4516 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4517 they were not being used by the framework as there is no concept of a 4518 BIGNUM_METHOD and they could not be generalised to the new 4519 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4520 ENGINE_cpy() has been removed as it cannot be consistently defined in 4521 the new code. 4522 [Geoff Thorpe] 4523 4524 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4525 [Steve Henson] 4526 4527 *) Change mkdef.pl to sort symbols that get the same entry number, 4528 and make sure the automatically generated functions ERR_load_* 4529 become part of libeay.num as well. 4530 [Richard Levitte] 4531 4532 *) New function SSL_renegotiate_pending(). This returns true once 4533 renegotiation has been requested (either SSL_renegotiate() call 4534 or HelloRequest/ClientHello receveived from the peer) and becomes 4535 false once a handshake has been completed. 4536 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4537 sends a HelloRequest, but does not ensure that a handshake takes 4538 place. SSL_renegotiate_pending() is useful for checking if the 4539 client has followed the request.) 4540 [Bodo Moeller] 4541 4542 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4543 By default, clients may request session resumption even during 4544 renegotiation (if session ID contexts permit); with this option, 4545 session resumption is possible only in the first handshake. 4546 4547 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4548 more bits available for options that should not be part of 4549 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4550 [Bodo Moeller] 4551 4552 *) Add some demos for certificate and certificate request creation. 4553 [Steve Henson] 4554 4555 *) Make maximum certificate chain size accepted from the peer application 4556 settable (SSL*_get/set_max_cert_list()), as proposed by 4557 "Douglas E. Engert" <deengert@anl.gov>. 4558 [Lutz Jaenicke] 4559 4560 *) Add support for shared libraries for Unixware-7 4561 (Boyd Lynn Gerber <gerberb@zenez.com>). 4562 [Lutz Jaenicke] 4563 4564 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4565 be done prior to destruction. Use this to unload error strings from 4566 ENGINEs that load their own error strings. NB: This adds two new API 4567 functions to "get" and "set" this destroy handler in an ENGINE. 4568 [Geoff Thorpe] 4569 4570 *) Alter all existing ENGINE implementations (except "openssl" and 4571 "openbsd") to dynamically instantiate their own error strings. This 4572 makes them more flexible to be built both as statically-linked ENGINEs 4573 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4574 Also, add stub code to each that makes building them as self-contained 4575 shared-libraries easier (see README.ENGINE). 4576 [Geoff Thorpe] 4577 4578 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4579 implementations into applications that are completely implemented in 4580 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4581 commands that can be used to configure what shared-library to load and 4582 to control aspects of the way it is handled. Also, made an update to 4583 the README.ENGINE file that brings its information up-to-date and 4584 provides some information and instructions on the "dynamic" ENGINE 4585 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4586 [Geoff Thorpe] 4587 4588 *) Make it possible to unload ranges of ERR strings with a new 4589 "ERR_unload_strings" function. 4590 [Geoff Thorpe] 4591 4592 *) Add a copy() function to EVP_MD. 4593 [Ben Laurie] 4594 4595 *) Make EVP_MD routines take a context pointer instead of just the 4596 md_data void pointer. 4597 [Ben Laurie] 4598 4599 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4600 that the digest can only process a single chunk of data 4601 (typically because it is provided by a piece of 4602 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4603 is only going to provide a single chunk of data, and hence the 4604 framework needn't accumulate the data for oneshot drivers. 4605 [Ben Laurie] 4606 4607 *) As with "ERR", make it possible to replace the underlying "ex_data" 4608 functions. This change also alters the storage and management of global 4609 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4610 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4611 index counters. The API functions that use this state have been changed 4612 to take a "class_index" rather than pointers to the class's local STACK 4613 and counter, and there is now an API function to dynamically create new 4614 classes. This centralisation allows us to (a) plug a lot of the 4615 thread-safety problems that existed, and (b) makes it possible to clean 4616 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4617 such data would previously have always leaked in application code and 4618 workarounds were in place to make the memory debugging turn a blind eye 4619 to it. Application code that doesn't use this new function will still 4620 leak as before, but their memory debugging output will announce it now 4621 rather than letting it slide. 4622 4623 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4624 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4625 has a return value to indicate success or failure. 4626 [Geoff Thorpe] 4627 4628 *) Make it possible to replace the underlying "ERR" functions such that the 4629 global state (2 LHASH tables and 2 locks) is only used by the "default" 4630 implementation. This change also adds two functions to "get" and "set" 4631 the implementation prior to it being automatically set the first time 4632 any other ERR function takes place. Ie. an application can call "get", 4633 pass the return value to a module it has just loaded, and that module 4634 can call its own "set" function using that value. This means the 4635 module's "ERR" operations will use (and modify) the error state in the 4636 application and not in its own statically linked copy of OpenSSL code. 4637 [Geoff Thorpe] 4638 4639 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4640 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4641 the operation, and provides a more encapsulated way for external code 4642 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4643 to use these functions rather than manually incrementing the counts. 4644 4645 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4646 [Geoff Thorpe] 4647 4648 *) Add EVP test program. 4649 [Ben Laurie] 4650 4651 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4652 [Ben Laurie] 4653 4654 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4655 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4656 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4657 These allow a CRL to be built without having to access X509_CRL fields 4658 directly. Modify 'ca' application to use new functions. 4659 [Steve Henson] 4660 4661 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4662 bug workarounds. Rollback attack detection is a security feature. 4663 The problem will only arise on OpenSSL servers when TLSv1 is not 4664 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4665 Software authors not wanting to support TLSv1 will have special reasons 4666 for their choice and can explicitly enable this option. 4667 [Bodo Moeller, Lutz Jaenicke] 4668 4669 *) Rationalise EVP so it can be extended: don't include a union of 4670 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4671 (similar to those existing for EVP_CIPHER_CTX). 4672 Usage example: 4673 4674 EVP_MD_CTX md; 4675 4676 EVP_MD_CTX_init(&md); /* new function call */ 4677 EVP_DigestInit(&md, EVP_sha1()); 4678 EVP_DigestUpdate(&md, in, len); 4679 EVP_DigestFinal(&md, out, NULL); 4680 EVP_MD_CTX_cleanup(&md); /* new function call */ 4681 4682 [Ben Laurie] 4683 4684 *) Make DES key schedule conform to the usual scheme, as well as 4685 correcting its structure. This means that calls to DES functions 4686 now have to pass a pointer to a des_key_schedule instead of a 4687 plain des_key_schedule (which was actually always a pointer 4688 anyway): E.g., 4689 4690 des_key_schedule ks; 4691 4692 des_set_key_checked(..., &ks); 4693 des_ncbc_encrypt(..., &ks, ...); 4694 4695 (Note that a later change renames 'des_...' into 'DES_...'.) 4696 [Ben Laurie] 4697 4698 *) Initial reduction of linker bloat: the use of some functions, such as 4699 PEM causes large amounts of unused functions to be linked in due to 4700 poor organisation. For example pem_all.c contains every PEM function 4701 which has a knock on effect of linking in large amounts of (unused) 4702 ASN1 code. Grouping together similar functions and splitting unrelated 4703 functions prevents this. 4704 [Steve Henson] 4705 4706 *) Cleanup of EVP macros. 4707 [Ben Laurie] 4708 4709 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4710 correct _ecb suffix. 4711 [Ben Laurie] 4712 4713 *) Add initial OCSP responder support to ocsp application. The 4714 revocation information is handled using the text based index 4715 use by the ca application. The responder can either handle 4716 requests generated internally, supplied in files (for example 4717 via a CGI script) or using an internal minimal server. 4718 [Steve Henson] 4719 4720 *) Add configuration choices to get zlib compression for TLS. 4721 [Richard Levitte] 4722 4723 *) Changes to Kerberos SSL for RFC 2712 compliance: 4724 1. Implemented real KerberosWrapper, instead of just using 4725 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4726 2. Implemented optional authenticator field of KerberosWrapper. 4727 4728 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4729 and authenticator structs; see crypto/krb5/. 4730 4731 Generalized Kerberos calls to support multiple Kerberos libraries. 4732 [Vern Staats <staatsvr@asc.hpc.mil>, 4733 Jeffrey Altman <jaltman@columbia.edu> 4734 via Richard Levitte] 4735 4736 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4737 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4738 values for each of the key sizes rather than having just 4739 parameters (and 'speed' generating keys each time). 4740 [Geoff Thorpe] 4741 4742 *) Speed up EVP routines. 4743 Before: 4744encrypt 4745type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4746des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4747des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4748des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4749decrypt 4750des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4751des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4752des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4753 After: 4754encrypt 4755des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4756decrypt 4757des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4758 [Ben Laurie] 4759 4760 *) Added the OS2-EMX target. 4761 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4762 4763 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4764 to support NCONF routines in extension code. New function CONF_set_nconf() 4765 to allow functions which take an NCONF to also handle the old LHASH 4766 structure: this means that the old CONF compatible routines can be 4767 retained (in particular wrt extensions) without having to duplicate the 4768 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4769 [Steve Henson] 4770 4771 *) Enhance the general user interface with mechanisms for inner control 4772 and with possibilities to have yes/no kind of prompts. 4773 [Richard Levitte] 4774 4775 *) Change all calls to low level digest routines in the library and 4776 applications to use EVP. Add missing calls to HMAC_cleanup() and 4777 don't assume HMAC_CTX can be copied using memcpy(). 4778 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4779 4780 *) Add the possibility to control engines through control names but with 4781 arbitrary arguments instead of just a string. 4782 Change the key loaders to take a UI_METHOD instead of a callback 4783 function pointer. NOTE: this breaks binary compatibility with earlier 4784 versions of OpenSSL [engine]. 4785 Adapt the nCipher code for these new conditions and add a card insertion 4786 callback. 4787 [Richard Levitte] 4788 4789 *) Enhance the general user interface with mechanisms to better support 4790 dialog box interfaces, application-defined prompts, the possibility 4791 to use defaults (for example default passwords from somewhere else) 4792 and interrupts/cancellations. 4793 [Richard Levitte] 4794 4795 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4796 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4797 [Steve Henson] 4798 4799 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4800 tidy up some unnecessarily weird code in 'sk_new()'). 4801 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4802 4803 *) Change the key loading routines for ENGINEs to use the same kind 4804 callback (pem_password_cb) as all other routines that need this 4805 kind of callback. 4806 [Richard Levitte] 4807 4808 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4809 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4810 than this minimum value is recommended. 4811 [Lutz Jaenicke] 4812 4813 *) New random seeder for OpenVMS, using the system process statistics 4814 that are easily reachable. 4815 [Richard Levitte] 4816 4817 *) Windows apparently can't transparently handle global 4818 variables defined in DLLs. Initialisations such as: 4819 4820 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4821 4822 wont compile. This is used by the any applications that need to 4823 declare their own ASN1 modules. This was fixed by adding the option 4824 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4825 needed for static libraries under Win32. 4826 [Steve Henson] 4827 4828 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4829 setting of purpose and trust fields. New X509_STORE trust and 4830 purpose functions and tidy up setting in other SSL functions. 4831 [Steve Henson] 4832 4833 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4834 structure. These are inherited by X509_STORE_CTX when it is 4835 initialised. This allows various defaults to be set in the 4836 X509_STORE structure (such as flags for CRL checking and custom 4837 purpose or trust settings) for functions which only use X509_STORE_CTX 4838 internally such as S/MIME. 4839 4840 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4841 trust settings if they are not set in X509_STORE. This allows X509_STORE 4842 purposes and trust (in S/MIME for example) to override any set by default. 4843 4844 Add command line options for CRL checking to smime, s_client and s_server 4845 applications. 4846 [Steve Henson] 4847 4848 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4849 are set then the CRL is looked up in the X509_STORE structure and 4850 its validity and signature checked, then if the certificate is found 4851 in the CRL the verify fails with a revoked error. 4852 4853 Various new CRL related callbacks added to X509_STORE_CTX structure. 4854 4855 Command line options added to 'verify' application to support this. 4856 4857 This needs some additional work, such as being able to handle multiple 4858 CRLs with different times, extension based lookup (rather than just 4859 by subject name) and ultimately more complete V2 CRL extension 4860 handling. 4861 [Steve Henson] 4862 4863 *) Add a general user interface API (crypto/ui/). This is designed 4864 to replace things like des_read_password and friends (backward 4865 compatibility functions using this new API are provided). 4866 The purpose is to remove prompting functions from the DES code 4867 section as well as provide for prompting through dialog boxes in 4868 a window system and the like. 4869 [Richard Levitte] 4870 4871 *) Add "ex_data" support to ENGINE so implementations can add state at a 4872 per-structure level rather than having to store it globally. 4873 [Geoff] 4874 4875 *) Make it possible for ENGINE structures to be copied when retrieved by 4876 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4877 This causes the "original" ENGINE structure to act like a template, 4878 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4879 operational state can be localised to each ENGINE structure, despite the 4880 fact they all share the same "methods". New ENGINE structures returned in 4881 this case have no functional references and the return value is the single 4882 structural reference. This matches the single structural reference returned 4883 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4884 ENGINE structure. 4885 [Geoff] 4886 4887 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4888 needs to match any other type at all we need to manually clear the 4889 tag cache. 4890 [Steve Henson] 4891 4892 *) Changes to the "openssl engine" utility to include; 4893 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4894 about an ENGINE's available control commands. 4895 - executing control commands from command line arguments using the 4896 '-pre' and '-post' switches. '-post' is only used if '-t' is 4897 specified and the ENGINE is successfully initialised. The syntax for 4898 the individual commands are colon-separated, for example; 4899 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4900 [Geoff] 4901 4902 *) New dynamic control command support for ENGINEs. ENGINEs can now 4903 declare their own commands (numbers), names (strings), descriptions, 4904 and input types for run-time discovery by calling applications. A 4905 subset of these commands are implicitly classed as "executable" 4906 depending on their input type, and only these can be invoked through 4907 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 4908 can be based on user input, config files, etc). The distinction is 4909 that "executable" commands cannot return anything other than a boolean 4910 result and can only support numeric or string input, whereas some 4911 discoverable commands may only be for direct use through 4912 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 4913 pointers, or other custom uses. The "executable" commands are to 4914 support parameterisations of ENGINE behaviour that can be 4915 unambiguously defined by ENGINEs and used consistently across any 4916 OpenSSL-based application. Commands have been added to all the 4917 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 4918 control over shared-library paths without source code alterations. 4919 [Geoff] 4920 4921 *) Changed all ENGINE implementations to dynamically allocate their 4922 ENGINEs rather than declaring them statically. Apart from this being 4923 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 4924 this also allows the implementations to compile without using the 4925 internal engine_int.h header. 4926 [Geoff] 4927 4928 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 4929 'const' value. Any code that should be able to modify a RAND_METHOD 4930 should already have non-const pointers to it (ie. they should only 4931 modify their own ones). 4932 [Geoff] 4933 4934 *) Made a variety of little tweaks to the ENGINE code. 4935 - "atalla" and "ubsec" string definitions were moved from header files 4936 to C code. "nuron" string definitions were placed in variables 4937 rather than hard-coded - allowing parameterisation of these values 4938 later on via ctrl() commands. 4939 - Removed unused "#if 0"'d code. 4940 - Fixed engine list iteration code so it uses ENGINE_free() to release 4941 structural references. 4942 - Constified the RAND_METHOD element of ENGINE structures. 4943 - Constified various get/set functions as appropriate and added 4944 missing functions (including a catch-all ENGINE_cpy that duplicates 4945 all ENGINE values onto a new ENGINE except reference counts/state). 4946 - Removed NULL parameter checks in get/set functions. Setting a method 4947 or function to NULL is a way of cancelling out a previously set 4948 value. Passing a NULL ENGINE parameter is just plain stupid anyway 4949 and doesn't justify the extra error symbols and code. 4950 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 4951 flags from engine_int.h to engine.h. 4952 - Changed prototypes for ENGINE handler functions (init(), finish(), 4953 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 4954 [Geoff] 4955 4956 *) Implement binary inversion algorithm for BN_mod_inverse in addition 4957 to the algorithm using long division. The binary algorithm can be 4958 used only if the modulus is odd. On 32-bit systems, it is faster 4959 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 4960 roughly 5-15% for 256-bit moduli), so we use it only for moduli 4961 up to 450 bits. In 64-bit environments, the binary algorithm 4962 appears to be advantageous for much longer moduli; here we use it 4963 for moduli up to 2048 bits. 4964 [Bodo Moeller] 4965 4966 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 4967 could not support the combine flag in choice fields. 4968 [Steve Henson] 4969 4970 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 4971 extensions from a certificate request to the certificate. 4972 [Steve Henson] 4973 4974 *) Allow multiple 'certopt' and 'nameopt' options to be separated 4975 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 4976 file: this allows the display of the certificate about to be 4977 signed to be customised, to allow certain fields to be included 4978 or excluded and extension details. The old system didn't display 4979 multicharacter strings properly, omitted fields not in the policy 4980 and couldn't display additional details such as extensions. 4981 [Steve Henson] 4982 4983 *) Function EC_POINTs_mul for multiple scalar multiplication 4984 of an arbitrary number of elliptic curve points 4985 \sum scalars[i]*points[i], 4986 optionally including the generator defined for the EC_GROUP: 4987 scalar*generator + \sum scalars[i]*points[i]. 4988 4989 EC_POINT_mul is a simple wrapper function for the typical case 4990 that the point list has just one item (besides the optional 4991 generator). 4992 [Bodo Moeller] 4993 4994 *) First EC_METHODs for curves over GF(p): 4995 4996 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 4997 operations and provides various method functions that can also 4998 operate with faster implementations of modular arithmetic. 4999 5000 EC_GFp_mont_method() reuses most functions that are part of 5001 EC_GFp_simple_method, but uses Montgomery arithmetic. 5002 5003 [Bodo Moeller; point addition and point doubling 5004 implementation directly derived from source code provided by 5005 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 5006 5007 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 5008 crypto/ec/ec_lib.c): 5009 5010 Curves are EC_GROUP objects (with an optional group generator) 5011 based on EC_METHODs that are built into the library. 5012 5013 Points are EC_POINT objects based on EC_GROUP objects. 5014 5015 Most of the framework would be able to handle curves over arbitrary 5016 finite fields, but as there are no obvious types for fields other 5017 than GF(p), some functions are limited to that for now. 5018 [Bodo Moeller] 5019 5020 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 5021 that the file contains a complete HTTP response. 5022 [Richard Levitte] 5023 5024 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 5025 change the def and num file printf format specifier from "%-40sXXX" 5026 to "%-39s XXX". The latter will always guarantee a space after the 5027 field while the former will cause them to run together if the field 5028 is 40 of more characters long. 5029 [Steve Henson] 5030 5031 *) Constify the cipher and digest 'method' functions and structures 5032 and modify related functions to take constant EVP_MD and EVP_CIPHER 5033 pointers. 5034 [Steve Henson] 5035 5036 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 5037 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 5038 [Bodo Moeller] 5039 5040 *) Modify EVP_Digest*() routines so they now return values. Although the 5041 internal software routines can never fail additional hardware versions 5042 might. 5043 [Steve Henson] 5044 5045 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 5046 5047 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 5048 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 5049 5050 ASN1 error codes 5051 ERR_R_NESTED_ASN1_ERROR 5052 ... 5053 ERR_R_MISSING_ASN1_EOS 5054 were 4 .. 9, conflicting with 5055 ERR_LIB_RSA (= ERR_R_RSA_LIB) 5056 ... 5057 ERR_LIB_PEM (= ERR_R_PEM_LIB). 5058 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 5059 5060 Add new error code 'ERR_R_INTERNAL_ERROR'. 5061 [Bodo Moeller] 5062 5063 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 5064 suffices. 5065 [Bodo Moeller] 5066 5067 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 5068 sets the subject name for a new request or supersedes the 5069 subject name in a given request. Formats that can be parsed are 5070 'CN=Some Name, OU=myOU, C=IT' 5071 and 5072 'CN=Some Name/OU=myOU/C=IT'. 5073 5074 Add options '-batch' and '-verbose' to 'openssl req'. 5075 [Massimiliano Pala <madwolf@hackmasters.net>] 5076 5077 *) Introduce the possibility to access global variables through 5078 functions on platform were that's the best way to handle exporting 5079 global variables in shared libraries. To enable this functionality, 5080 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5081 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5082 is normally done by Configure or something similar). 5083 5084 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5085 in the source file (foo.c) like this: 5086 5087 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5088 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5089 5090 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5091 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5092 5093 OPENSSL_DECLARE_GLOBAL(int,foo); 5094 #define foo OPENSSL_GLOBAL_REF(foo) 5095 OPENSSL_DECLARE_GLOBAL(double,bar); 5096 #define bar OPENSSL_GLOBAL_REF(bar) 5097 5098 The #defines are very important, and therefore so is including the 5099 header file everywhere where the defined globals are used. 5100 5101 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5102 of ASN.1 items, but that structure is a bit different. 5103 5104 The largest change is in util/mkdef.pl which has been enhanced with 5105 better and easier to understand logic to choose which symbols should 5106 go into the Windows .def files as well as a number of fixes and code 5107 cleanup (among others, algorithm keywords are now sorted 5108 lexicographically to avoid constant rewrites). 5109 [Richard Levitte] 5110 5111 *) In BN_div() keep a copy of the sign of 'num' before writing the 5112 result to 'rm' because if rm==num the value will be overwritten 5113 and produce the wrong result if 'num' is negative: this caused 5114 problems with BN_mod() and BN_nnmod(). 5115 [Steve Henson] 5116 5117 *) Function OCSP_request_verify(). This checks the signature on an 5118 OCSP request and verifies the signer certificate. The signer 5119 certificate is just checked for a generic purpose and OCSP request 5120 trust settings. 5121 [Steve Henson] 5122 5123 *) Add OCSP_check_validity() function to check the validity of OCSP 5124 responses. OCSP responses are prepared in real time and may only 5125 be a few seconds old. Simply checking that the current time lies 5126 between thisUpdate and nextUpdate max reject otherwise valid responses 5127 caused by either OCSP responder or client clock inaccuracy. Instead 5128 we allow thisUpdate and nextUpdate to fall within a certain period of 5129 the current time. The age of the response can also optionally be 5130 checked. Two new options -validity_period and -status_age added to 5131 ocsp utility. 5132 [Steve Henson] 5133 5134 *) If signature or public key algorithm is unrecognized print out its 5135 OID rather that just UNKNOWN. 5136 [Steve Henson] 5137 5138 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5139 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5140 ID to be generated from the issuer certificate alone which can then be 5141 passed to OCSP_id_issuer_cmp(). 5142 [Steve Henson] 5143 5144 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5145 ASN1 modules to export functions returning ASN1_ITEM pointers 5146 instead of the ASN1_ITEM structures themselves. This adds several 5147 new macros which allow the underlying ASN1 function/structure to 5148 be accessed transparently. As a result code should not use ASN1_ITEM 5149 references directly (such as &X509_it) but instead use the relevant 5150 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5151 use of the new ASN1 code on platforms where exporting structures 5152 is problematical (for example in shared libraries) but exporting 5153 functions returning pointers to structures is not. 5154 [Steve Henson] 5155 5156 *) Add support for overriding the generation of SSL/TLS session IDs. 5157 These callbacks can be registered either in an SSL_CTX or per SSL. 5158 The purpose of this is to allow applications to control, if they wish, 5159 the arbitrary values chosen for use as session IDs, particularly as it 5160 can be useful for session caching in multiple-server environments. A 5161 command-line switch for testing this (and any client code that wishes 5162 to use such a feature) has been added to "s_server". 5163 [Geoff Thorpe, Lutz Jaenicke] 5164 5165 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5166 of the form '#if defined(...) || defined(...) || ...' and 5167 '#if !defined(...) && !defined(...) && ...'. This also avoids 5168 the growing number of special cases it was previously handling. 5169 [Richard Levitte] 5170 5171 *) Make all configuration macros available for application by making 5172 sure they are available in opensslconf.h, by giving them names starting 5173 with "OPENSSL_" to avoid conflicts with other packages and by making 5174 sure e_os2.h will cover all platform-specific cases together with 5175 opensslconf.h. 5176 Additionally, it is now possible to define configuration/platform- 5177 specific names (called "system identities"). In the C code, these 5178 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5179 macro with the name beginning with "OPENSSL_SYS_", which is determined 5180 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5181 what is available. 5182 [Richard Levitte] 5183 5184 *) New option -set_serial to 'req' and 'x509' this allows the serial 5185 number to use to be specified on the command line. Previously self 5186 signed certificates were hard coded with serial number 0 and the 5187 CA options of 'x509' had to use a serial number in a file which was 5188 auto incremented. 5189 [Steve Henson] 5190 5191 *) New options to 'ca' utility to support V2 CRL entry extensions. 5192 Currently CRL reason, invalidity date and hold instruction are 5193 supported. Add new CRL extensions to V3 code and some new objects. 5194 [Steve Henson] 5195 5196 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5197 disable standard block padding (aka PKCS#5 padding) in the EVP 5198 API, which was previously mandatory. This means that the data is 5199 not padded in any way and so the total length much be a multiple 5200 of the block size, otherwise an error occurs. 5201 [Steve Henson] 5202 5203 *) Initial (incomplete) OCSP SSL support. 5204 [Steve Henson] 5205 5206 *) New function OCSP_parse_url(). This splits up a URL into its host, 5207 port and path components: primarily to parse OCSP URLs. New -url 5208 option to ocsp utility. 5209 [Steve Henson] 5210 5211 *) New nonce behavior. The return value of OCSP_check_nonce() now 5212 reflects the various checks performed. Applications can decide 5213 whether to tolerate certain situations such as an absent nonce 5214 in a response when one was present in a request: the ocsp application 5215 just prints out a warning. New function OCSP_add1_basic_nonce() 5216 this is to allow responders to include a nonce in a response even if 5217 the request is nonce-less. 5218 [Steve Henson] 5219 5220 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5221 skipped when using openssl x509 multiple times on a single input file, 5222 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5223 [Bodo Moeller] 5224 5225 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5226 set string type: to handle setting ASN1_TIME structures. Fix ca 5227 utility to correctly initialize revocation date of CRLs. 5228 [Steve Henson] 5229 5230 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5231 the clients preferred ciphersuites and rather use its own preferences. 5232 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5233 Internet Explorer by ensuring unchanged hash method during stepup. 5234 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5235 [Lutz Jaenicke] 5236 5237 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5238 to aes and add a new 'exist' option to print out symbols that don't 5239 appear to exist. 5240 [Steve Henson] 5241 5242 *) Additional options to ocsp utility to allow flags to be set and 5243 additional certificates supplied. 5244 [Steve Henson] 5245 5246 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5247 OCSP client a number of certificate to only verify the response 5248 signature against. 5249 [Richard Levitte] 5250 5251 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5252 handle the new API. Currently only ECB, CBC modes supported. Add new 5253 AES OIDs. 5254 5255 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5256 Encryption Standard (AES) Ciphersuites for Transport Layer 5257 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5258 not enabled by default and were not part of the "ALL" ciphersuite 5259 alias because they were not yet official; they could be 5260 explicitly requested by specifying the "AESdraft" ciphersuite 5261 group alias. In the final release of OpenSSL 0.9.7, the group 5262 alias is called "AES" and is part of "ALL".) 5263 [Ben Laurie, Steve Henson, Bodo Moeller] 5264 5265 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5266 request to response. 5267 [Steve Henson] 5268 5269 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5270 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5271 extract information from a certificate request. OCSP_response_create() 5272 creates a response and optionally adds a basic response structure. 5273 OCSP_basic_add1_status() adds a complete single response to a basic 5274 response and returns the OCSP_SINGLERESP structure just added (to allow 5275 extensions to be included for example). OCSP_basic_add1_cert() adds a 5276 certificate to a basic response and OCSP_basic_sign() signs a basic 5277 response with various flags. New helper functions ASN1_TIME_check() 5278 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5279 (converts ASN1_TIME to GeneralizedTime). 5280 [Steve Henson] 5281 5282 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5283 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5284 structure from a certificate. X509_pubkey_digest() digests the public_key 5285 contents: this is used in various key identifiers. 5286 [Steve Henson] 5287 5288 *) Make sk_sort() tolerate a NULL argument. 5289 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5290 5291 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5292 passed by the function are trusted implicitly. If any of them signed the 5293 response then it is assumed to be valid and is not verified. 5294 [Steve Henson] 5295 5296 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5297 to data. This was previously part of the PKCS7 ASN1 code. This 5298 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5299 [Steve Henson, reported by Kenneth R. Robinette 5300 <support@securenetterm.com>] 5301 5302 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5303 routines: without these tracing memory leaks is very painful. 5304 Fix leaks in PKCS12 and PKCS7 routines. 5305 [Steve Henson] 5306 5307 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5308 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5309 effectively meant GeneralizedTime would never be used. Now it 5310 is initialised to -1 but X509_time_adj() now has to check the value 5311 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5312 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5313 [Steve Henson, reported by Kenneth R. Robinette 5314 <support@securenetterm.com>] 5315 5316 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5317 result in a zero length in the ASN1_INTEGER structure which was 5318 not consistent with the structure when d2i_ASN1_INTEGER() was used 5319 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5320 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5321 where it did not print out a minus for negative ASN1_INTEGER. 5322 [Steve Henson] 5323 5324 *) Add summary printout to ocsp utility. The various functions which 5325 convert status values to strings have been renamed to: 5326 OCSP_response_status_str(), OCSP_cert_status_str() and 5327 OCSP_crl_reason_str() and are no longer static. New options 5328 to verify nonce values and to disable verification. OCSP response 5329 printout format cleaned up. 5330 [Steve Henson] 5331 5332 *) Add additional OCSP certificate checks. These are those specified 5333 in RFC2560. This consists of two separate checks: the CA of the 5334 certificate being checked must either be the OCSP signer certificate 5335 or the issuer of the OCSP signer certificate. In the latter case the 5336 OCSP signer certificate must contain the OCSP signing extended key 5337 usage. This check is performed by attempting to match the OCSP 5338 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5339 in the OCSP_CERTID structures of the response. 5340 [Steve Henson] 5341 5342 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5343 and related routines. This uses the standard OpenSSL certificate 5344 verify routines to perform initial checks (just CA validity) and 5345 to obtain the certificate chain. Then additional checks will be 5346 performed on the chain. Currently the root CA is checked to see 5347 if it is explicitly trusted for OCSP signing. This is used to set 5348 a root CA as a global signing root: that is any certificate that 5349 chains to that CA is an acceptable OCSP signing certificate. 5350 [Steve Henson] 5351 5352 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5353 extensions from a separate configuration file. 5354 As when reading extensions from the main configuration file, 5355 the '-extensions ...' option may be used for specifying the 5356 section to use. 5357 [Massimiliano Pala <madwolf@comune.modena.it>] 5358 5359 *) New OCSP utility. Allows OCSP requests to be generated or 5360 read. The request can be sent to a responder and the output 5361 parsed, outputed or printed in text form. Not complete yet: 5362 still needs to check the OCSP response validity. 5363 [Steve Henson] 5364 5365 *) New subcommands for 'openssl ca': 5366 'openssl ca -status <serial>' prints the status of the cert with 5367 the given serial number (according to the index file). 5368 'openssl ca -updatedb' updates the expiry status of certificates 5369 in the index file. 5370 [Massimiliano Pala <madwolf@comune.modena.it>] 5371 5372 *) New '-newreq-nodes' command option to CA.pl. This is like 5373 '-newreq', but calls 'openssl req' with the '-nodes' option 5374 so that the resulting key is not encrypted. 5375 [Damien Miller <djm@mindrot.org>] 5376 5377 *) New configuration for the GNU Hurd. 5378 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5379 5380 *) Initial code to implement OCSP basic response verify. This 5381 is currently incomplete. Currently just finds the signer's 5382 certificate and verifies the signature on the response. 5383 [Steve Henson] 5384 5385 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5386 value of OPENSSLDIR. This is available via the new '-d' option 5387 to 'openssl version', and is also included in 'openssl version -a'. 5388 [Bodo Moeller] 5389 5390 *) Allowing defining memory allocation callbacks that will be given 5391 file name and line number information in additional arguments 5392 (a const char* and an int). The basic functionality remains, as 5393 well as the original possibility to just replace malloc(), 5394 realloc() and free() by functions that do not know about these 5395 additional arguments. To register and find out the current 5396 settings for extended allocation functions, the following 5397 functions are provided: 5398 5399 CRYPTO_set_mem_ex_functions 5400 CRYPTO_set_locked_mem_ex_functions 5401 CRYPTO_get_mem_ex_functions 5402 CRYPTO_get_locked_mem_ex_functions 5403 5404 These work the same way as CRYPTO_set_mem_functions and friends. 5405 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5406 extended allocation function is enabled. 5407 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5408 a conventional allocation function is enabled. 5409 [Richard Levitte, Bodo Moeller] 5410 5411 *) Finish off removing the remaining LHASH function pointer casts. 5412 There should no longer be any prototype-casting required when using 5413 the LHASH abstraction, and any casts that remain are "bugs". See 5414 the callback types and macros at the head of lhash.h for details 5415 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5416 [Geoff Thorpe] 5417 5418 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5419 If /dev/[u]random devices are not available or do not return enough 5420 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5421 be queried. 5422 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5423 /etc/entropy will be queried once each in this sequence, quering stops 5424 when enough entropy was collected without querying more sockets. 5425 [Lutz Jaenicke] 5426 5427 *) Change the Unix RAND_poll() variant to be able to poll several 5428 random devices, as specified by DEVRANDOM, until a sufficient amount 5429 of data has been collected. We spend at most 10 ms on each file 5430 (select timeout) and read in non-blocking mode. DEVRANDOM now 5431 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5432 (previously it was just the string "/dev/urandom"), so on typical 5433 platforms the 10 ms delay will never occur. 5434 Also separate out the Unix variant to its own file, rand_unix.c. 5435 For VMS, there's a currently-empty rand_vms.c. 5436 [Richard Levitte] 5437 5438 *) Move OCSP client related routines to ocsp_cl.c. These 5439 provide utility functions which an application needing 5440 to issue a request to an OCSP responder and analyse the 5441 response will typically need: as opposed to those which an 5442 OCSP responder itself would need which will be added later. 5443 5444 OCSP_request_sign() signs an OCSP request with an API similar 5445 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5446 response. OCSP_response_get1_basic() extracts basic response 5447 from response. OCSP_resp_find_status(): finds and extracts status 5448 information from an OCSP_CERTID structure (which will be created 5449 when the request structure is built). These are built from lower 5450 level functions which work on OCSP_SINGLERESP structures but 5451 wont normally be used unless the application wishes to examine 5452 extensions in the OCSP response for example. 5453 5454 Replace nonce routines with a pair of functions. 5455 OCSP_request_add1_nonce() adds a nonce value and optionally 5456 generates a random value. OCSP_check_nonce() checks the 5457 validity of the nonce in an OCSP response. 5458 [Steve Henson] 5459 5460 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5461 This doesn't copy the supplied OCSP_CERTID and avoids the 5462 need to free up the newly created id. Change return type 5463 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5464 This can then be used to add extensions to the request. 5465 Deleted OCSP_request_new(), since most of its functionality 5466 is now in OCSP_REQUEST_new() (and the case insensitive name 5467 clash) apart from the ability to set the request name which 5468 will be added elsewhere. 5469 [Steve Henson] 5470 5471 *) Update OCSP API. Remove obsolete extensions argument from 5472 various functions. Extensions are now handled using the new 5473 OCSP extension code. New simple OCSP HTTP function which 5474 can be used to send requests and parse the response. 5475 [Steve Henson] 5476 5477 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5478 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5479 uses the special reorder version of SET OF to sort the attributes 5480 and reorder them to match the encoded order. This resolves a long 5481 standing problem: a verify on a PKCS7 structure just after signing 5482 it used to fail because the attribute order did not match the 5483 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5484 it uses the received order. This is necessary to tolerate some broken 5485 software that does not order SET OF. This is handled by encoding 5486 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5487 to produce the required SET OF. 5488 [Steve Henson] 5489 5490 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5491 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5492 files to get correct declarations of the ASN.1 item variables. 5493 [Richard Levitte] 5494 5495 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5496 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5497 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5498 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5499 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5500 ASN1_ITEM and no wrapper functions. 5501 [Steve Henson] 5502 5503 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5504 replace the old function pointer based I/O routines. Change most of 5505 the *_d2i_bio() and *_d2i_fp() functions to use these. 5506 [Steve Henson] 5507 5508 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5509 lines, recognice more "algorithms" that can be deselected, and make 5510 it complain about algorithm deselection that isn't recognised. 5511 [Richard Levitte] 5512 5513 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5514 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5515 to use new functions. Add NO_ASN1_OLD which can be set to remove 5516 some old style ASN1 functions: this can be used to determine if old 5517 code will still work when these eventually go away. 5518 [Steve Henson] 5519 5520 *) New extension functions for OCSP structures, these follow the 5521 same conventions as certificates and CRLs. 5522 [Steve Henson] 5523 5524 *) New function X509V3_add1_i2d(). This automatically encodes and 5525 adds an extension. Its behaviour can be customised with various 5526 flags to append, replace or delete. Various wrappers added for 5527 certifcates and CRLs. 5528 [Steve Henson] 5529 5530 *) Fix to avoid calling the underlying ASN1 print routine when 5531 an extension cannot be parsed. Correct a typo in the 5532 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5533 [Steve Henson] 5534 5535 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5536 entries for variables. 5537 [Steve Henson] 5538 5539 *) Add functionality to apps/openssl.c for detecting locking 5540 problems: As the program is single-threaded, all we have 5541 to do is register a locking callback using an array for 5542 storing which locks are currently held by the program. 5543 [Bodo Moeller] 5544 5545 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5546 SSL_get_ex_data_X509_STORE_idx(), which is used in 5547 ssl_verify_cert_chain() and thus can be called at any time 5548 during TLS/SSL handshakes so that thread-safety is essential. 5549 Unfortunately, the ex_data design is not at all suited 5550 for multi-threaded use, so it probably should be abolished. 5551 [Bodo Moeller] 5552 5553 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5554 [Broadcom, tweaked and integrated by Geoff Thorpe] 5555 5556 *) Move common extension printing code to new function 5557 X509V3_print_extensions(). Reorganise OCSP print routines and 5558 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5559 [Steve Henson] 5560 5561 *) New function X509_signature_print() to remove duplication in some 5562 print routines. 5563 [Steve Henson] 5564 5565 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5566 set (this was treated exactly the same as SET OF previously). This 5567 is used to reorder the STACK representing the structure to match the 5568 encoding. This will be used to get round a problem where a PKCS7 5569 structure which was signed could not be verified because the STACK 5570 order did not reflect the encoded order. 5571 [Steve Henson] 5572 5573 *) Reimplement the OCSP ASN1 module using the new code. 5574 [Steve Henson] 5575 5576 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5577 for its ASN1 operations. The old style function pointers still exist 5578 for now but they will eventually go away. 5579 [Steve Henson] 5580 5581 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5582 completely replaces the old ASN1 functionality with a table driven 5583 encoder and decoder which interprets an ASN1_ITEM structure describing 5584 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5585 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5586 has also been converted to the new form. 5587 [Steve Henson] 5588 5589 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5590 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5591 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5592 for negative moduli. 5593 [Bodo Moeller] 5594 5595 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5596 of not touching the result's sign bit. 5597 [Bodo Moeller] 5598 5599 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5600 set. 5601 [Bodo Moeller] 5602 5603 *) Changed the LHASH code to use prototypes for callbacks, and created 5604 macros to declare and implement thin (optionally static) functions 5605 that provide type-safety and avoid function pointer casting for the 5606 type-specific callbacks. 5607 [Geoff Thorpe] 5608 5609 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5610 RFC 2712. 5611 [Veers Staats <staatsvr@asc.hpc.mil>, 5612 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5613 5614 *) Reformat the FAQ so the different questions and answers can be divided 5615 in sections depending on the subject. 5616 [Richard Levitte] 5617 5618 *) Have the zlib compression code load ZLIB.DLL dynamically under 5619 Windows. 5620 [Richard Levitte] 5621 5622 *) New function BN_mod_sqrt for computing square roots modulo a prime 5623 (using the probabilistic Tonelli-Shanks algorithm unless 5624 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5625 be handled deterministically). 5626 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5627 5628 *) Make BN_mod_inverse faster by explicitly handling small quotients 5629 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5630 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5631 [Bodo Moeller] 5632 5633 *) New function BN_kronecker. 5634 [Bodo Moeller] 5635 5636 *) Fix BN_gcd so that it works on negative inputs; the result is 5637 positive unless both parameters are zero. 5638 Previously something reasonably close to an infinite loop was 5639 possible because numbers could be growing instead of shrinking 5640 in the implementation of Euclid's algorithm. 5641 [Bodo Moeller] 5642 5643 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5644 sign of the number in question. 5645 5646 Fix BN_is_word(a,w) to work correctly for w == 0. 5647 5648 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5649 because its test if the absolute value of 'a' equals 'w'. 5650 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5651 it exists mostly for use in the implementations of BN_is_zero(), 5652 BN_is_one(), and BN_is_word(). 5653 [Bodo Moeller] 5654 5655 *) New function BN_swap. 5656 [Bodo Moeller] 5657 5658 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5659 the exponentiation functions are more likely to produce reasonable 5660 results on negative inputs. 5661 [Bodo Moeller] 5662 5663 *) Change BN_mod_mul so that the result is always non-negative. 5664 Previously, it could be negative if one of the factors was negative; 5665 I don't think anyone really wanted that behaviour. 5666 [Bodo Moeller] 5667 5668 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5669 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5670 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5671 and add new functions: 5672 5673 BN_nnmod 5674 BN_mod_sqr 5675 BN_mod_add 5676 BN_mod_add_quick 5677 BN_mod_sub 5678 BN_mod_sub_quick 5679 BN_mod_lshift1 5680 BN_mod_lshift1_quick 5681 BN_mod_lshift 5682 BN_mod_lshift_quick 5683 5684 These functions always generate non-negative results. 5685 5686 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5687 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5688 5689 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5690 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5691 be reduced modulo m. 5692 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5693 5694#if 0 5695 The following entry accidentily appeared in the CHANGES file 5696 distributed with OpenSSL 0.9.7. The modifications described in 5697 it do *not* apply to OpenSSL 0.9.7. 5698 5699 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5700 was actually never needed) and in BN_mul(). The removal in BN_mul() 5701 required a small change in bn_mul_part_recursive() and the addition 5702 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5703 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5704 bn_sub_words() and bn_add_words() except they take arrays with 5705 differing sizes. 5706 [Richard Levitte] 5707#endif 5708 5709 *) In 'openssl passwd', verify passwords read from the terminal 5710 unless the '-salt' option is used (which usually means that 5711 verification would just waste user's time since the resulting 5712 hash is going to be compared with some given password hash) 5713 or the new '-noverify' option is used. 5714 5715 This is an incompatible change, but it does not affect 5716 non-interactive use of 'openssl passwd' (passwords on the command 5717 line, '-stdin' option, '-in ...' option) and thus should not 5718 cause any problems. 5719 [Bodo Moeller] 5720 5721 *) Remove all references to RSAref, since there's no more need for it. 5722 [Richard Levitte] 5723 5724 *) Make DSO load along a path given through an environment variable 5725 (SHLIB_PATH) with shl_load(). 5726 [Richard Levitte] 5727 5728 *) Constify the ENGINE code as a result of BIGNUM constification. 5729 Also constify the RSA code and most things related to it. In a 5730 few places, most notable in the depth of the ASN.1 code, ugly 5731 casts back to non-const were required (to be solved at a later 5732 time) 5733 [Richard Levitte] 5734 5735 *) Make it so the openssl application has all engines loaded by default. 5736 [Richard Levitte] 5737 5738 *) Constify the BIGNUM routines a little more. 5739 [Richard Levitte] 5740 5741 *) Add the following functions: 5742 5743 ENGINE_load_cswift() 5744 ENGINE_load_chil() 5745 ENGINE_load_atalla() 5746 ENGINE_load_nuron() 5747 ENGINE_load_builtin_engines() 5748 5749 That way, an application can itself choose if external engines that 5750 are built-in in OpenSSL shall ever be used or not. The benefit is 5751 that applications won't have to be linked with libdl or other dso 5752 libraries unless it's really needed. 5753 5754 Changed 'openssl engine' to load all engines on demand. 5755 Changed the engine header files to avoid the duplication of some 5756 declarations (they differed!). 5757 [Richard Levitte] 5758 5759 *) 'openssl engine' can now list capabilities. 5760 [Richard Levitte] 5761 5762 *) Better error reporting in 'openssl engine'. 5763 [Richard Levitte] 5764 5765 *) Never call load_dh_param(NULL) in s_server. 5766 [Bodo Moeller] 5767 5768 *) Add engine application. It can currently list engines by name and 5769 identity, and test if they are actually available. 5770 [Richard Levitte] 5771 5772 *) Improve RPM specification file by forcing symbolic linking and making 5773 sure the installed documentation is also owned by root.root. 5774 [Damien Miller <djm@mindrot.org>] 5775 5776 *) Give the OpenSSL applications more possibilities to make use of 5777 keys (public as well as private) handled by engines. 5778 [Richard Levitte] 5779 5780 *) Add OCSP code that comes from CertCo. 5781 [Richard Levitte] 5782 5783 *) Add VMS support for the Rijndael code. 5784 [Richard Levitte] 5785 5786 *) Added untested support for Nuron crypto accelerator. 5787 [Ben Laurie] 5788 5789 *) Add support for external cryptographic devices. This code was 5790 previously distributed separately as the "engine" branch. 5791 [Geoff Thorpe, Richard Levitte] 5792 5793 *) Rework the filename-translation in the DSO code. It is now possible to 5794 have far greater control over how a "name" is turned into a filename 5795 depending on the operating environment and any oddities about the 5796 different shared library filenames on each system. 5797 [Geoff Thorpe] 5798 5799 *) Support threads on FreeBSD-elf in Configure. 5800 [Richard Levitte] 5801 5802 *) Fix for SHA1 assembly problem with MASM: it produces 5803 warnings about corrupt line number information when assembling 5804 with debugging information. This is caused by the overlapping 5805 of two sections. 5806 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5807 5808 *) NCONF changes. 5809 NCONF_get_number() has no error checking at all. As a replacement, 5810 NCONF_get_number_e() is defined (_e for "error checking") and is 5811 promoted strongly. The old NCONF_get_number is kept around for 5812 binary backward compatibility. 5813 Make it possible for methods to load from something other than a BIO, 5814 by providing a function pointer that is given a name instead of a BIO. 5815 For example, this could be used to load configuration data from an 5816 LDAP server. 5817 [Richard Levitte] 5818 5819 *) Fix for non blocking accept BIOs. Added new I/O special reason 5820 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5821 with non blocking I/O was not possible because no retry code was 5822 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5823 this case. 5824 [Steve Henson] 5825 5826 *) Added the beginnings of Rijndael support. 5827 [Ben Laurie] 5828 5829 *) Fix for bug in DirectoryString mask setting. Add support for 5830 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5831 to allow certificate printing to more controllable, additional 5832 'certopt' option to 'x509' to allow new printing options to be 5833 set. 5834 [Steve Henson] 5835 5836 *) Clean old EAY MD5 hack from e_os.h. 5837 [Richard Levitte] 5838 5839 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5840 5841 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5842 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5843 [Joe Orton, Steve Henson] 5844 5845 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5846 5847 *) Fix additional bug revealed by the NISCC test suite: 5848 5849 Stop bug triggering large recursion when presented with 5850 certain ASN.1 tags (CVE-2003-0851) 5851 [Steve Henson] 5852 5853 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5854 5855 *) Fix various bugs revealed by running the NISCC test suite: 5856 5857 Stop out of bounds reads in the ASN1 code when presented with 5858 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5859 5860 If verify callback ignores invalid public key errors don't try to check 5861 certificate signature with the NULL public key. 5862 5863 [Steve Henson] 5864 5865 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5866 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5867 specifications. 5868 [Steve Henson] 5869 5870 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5871 extra data after the compression methods not only for TLS 1.0 5872 but also for SSL 3.0 (as required by the specification). 5873 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5874 5875 *) Change X509_certificate_type() to mark the key as exported/exportable 5876 when it's 512 *bits* long, not 512 bytes. 5877 [Richard Levitte] 5878 5879 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5880 5881 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5882 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5883 a protocol version number mismatch like a decryption error 5884 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5885 [Bodo Moeller] 5886 5887 *) Turn on RSA blinding by default in the default implementation 5888 to avoid a timing attack. Applications that don't want it can call 5889 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5890 They would be ill-advised to do so in most cases. 5891 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5892 5893 *) Change RSA blinding code so that it works when the PRNG is not 5894 seeded (in this case, the secret RSA exponent is abused as 5895 an unpredictable seed -- if it is not unpredictable, there 5896 is no point in blinding anyway). Make RSA blinding thread-safe 5897 by remembering the creator's thread ID in rsa->blinding and 5898 having all other threads use local one-time blinding factors 5899 (this requires more computation than sharing rsa->blinding, but 5900 avoids excessive locking; and if an RSA object is not shared 5901 between threads, blinding will still be very fast). 5902 [Bodo Moeller] 5903 5904 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5905 5906 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5907 via timing by performing a MAC computation even if incorrrect 5908 block cipher padding has been found. This is a countermeasure 5909 against active attacks where the attacker has to distinguish 5910 between bad padding and a MAC verification error. (CVE-2003-0078) 5911 5912 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5913 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5914 Martin Vuagnoux (EPFL, Ilion)] 5915 5916 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 5917 5918 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 5919 memory from it's contents. This is done with a counter that will 5920 place alternating values in each byte. This can be used to solve 5921 two issues: 1) the removal of calls to memset() by highly optimizing 5922 compilers, and 2) cleansing with other values than 0, since those can 5923 be read through on certain media, for example a swap space on disk. 5924 [Geoff Thorpe] 5925 5926 *) Bugfix: client side session caching did not work with external caching, 5927 because the session->cipher setting was not restored when reloading 5928 from the external cache. This problem was masked, when 5929 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 5930 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 5931 [Lutz Jaenicke] 5932 5933 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 5934 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 5935 [Zeev Lieber <zeev-l@yahoo.com>] 5936 5937 *) Undo an undocumented change introduced in 0.9.6e which caused 5938 repeated calls to OpenSSL_add_all_ciphers() and 5939 OpenSSL_add_all_digests() to be ignored, even after calling 5940 EVP_cleanup(). 5941 [Richard Levitte] 5942 5943 *) Change the default configuration reader to deal with last line not 5944 being properly terminated. 5945 [Richard Levitte] 5946 5947 *) Change X509_NAME_cmp() so it applies the special rules on handling 5948 DN values that are of type PrintableString, as well as RDNs of type 5949 emailAddress where the value has the type ia5String. 5950 [stefank@valicert.com via Richard Levitte] 5951 5952 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 5953 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 5954 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 5955 the bitwise-OR of the two for use by the majority of applications 5956 wanting this behaviour, and update the docs. The documented 5957 behaviour and actual behaviour were inconsistent and had been 5958 changing anyway, so this is more a bug-fix than a behavioural 5959 change. 5960 [Geoff Thorpe, diagnosed by Nadav Har'El] 5961 5962 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 5963 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 5964 [Bodo Moeller] 5965 5966 *) Fix initialization code race conditions in 5967 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 5968 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 5969 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 5970 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 5971 ssl2_get_cipher_by_char(), 5972 ssl3_get_cipher_by_char(). 5973 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 5974 5975 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 5976 the cached sessions are flushed, as the remove_cb() might use ex_data 5977 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 5978 (see [openssl.org #212]). 5979 [Geoff Thorpe, Lutz Jaenicke] 5980 5981 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 5982 length, instead of the encoding length to d2i_ASN1_OBJECT. 5983 [Steve Henson] 5984 5985 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 5986 5987 *) [In 0.9.6g-engine release:] 5988 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 5989 [Lynn Gazis <lgazis@rainbow.com>] 5990 5991 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 5992 5993 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 5994 and get fix the header length calculation. 5995 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 5996 Alon Kantor <alonk@checkpoint.com> (and others), 5997 Steve Henson] 5998 5999 *) Use proper error handling instead of 'assertions' in buffer 6000 overflow checks added in 0.9.6e. This prevents DoS (the 6001 assertions could call abort()). 6002 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 6003 6004 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 6005 6006 *) Add various sanity checks to asn1_get_length() to reject 6007 the ASN1 length bytes if they exceed sizeof(long), will appear 6008 negative or the content length exceeds the length of the 6009 supplied buffer. 6010 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6011 6012 *) Fix cipher selection routines: ciphers without encryption had no flags 6013 for the cipher strength set and where therefore not handled correctly 6014 by the selection routines (PR #130). 6015 [Lutz Jaenicke] 6016 6017 *) Fix EVP_dsa_sha macro. 6018 [Nils Larsch] 6019 6020 *) New option 6021 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 6022 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 6023 that was added in OpenSSL 0.9.6d. 6024 6025 As the countermeasure turned out to be incompatible with some 6026 broken SSL implementations, the new option is part of SSL_OP_ALL. 6027 SSL_OP_ALL is usually employed when compatibility with weird SSL 6028 implementations is desired (e.g. '-bugs' option to 's_client' and 6029 's_server'), so the new option is automatically set in many 6030 applications. 6031 [Bodo Moeller] 6032 6033 *) Changes in security patch: 6034 6035 Changes marked "(CHATS)" were sponsored by the Defense Advanced 6036 Research Projects Agency (DARPA) and Air Force Research Laboratory, 6037 Air Force Materiel Command, USAF, under agreement number 6038 F30602-01-2-0537. 6039 6040 *) Add various sanity checks to asn1_get_length() to reject 6041 the ASN1 length bytes if they exceed sizeof(long), will appear 6042 negative or the content length exceeds the length of the 6043 supplied buffer. (CVE-2002-0659) 6044 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6045 6046 *) Assertions for various potential buffer overflows, not known to 6047 happen in practice. 6048 [Ben Laurie (CHATS)] 6049 6050 *) Various temporary buffers to hold ASCII versions of integers were 6051 too small for 64 bit platforms. (CVE-2002-0655) 6052 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 6053 6054 *) Remote buffer overflow in SSL3 protocol - an attacker could 6055 supply an oversized session ID to a client. (CVE-2002-0656) 6056 [Ben Laurie (CHATS)] 6057 6058 *) Remote buffer overflow in SSL2 protocol - an attacker could 6059 supply an oversized client master key. (CVE-2002-0656) 6060 [Ben Laurie (CHATS)] 6061 6062 Changes between 0.9.6c and 0.9.6d [9 May 2002] 6063 6064 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 6065 encoded as NULL) with id-dsa-with-sha1. 6066 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 6067 6068 *) Check various X509_...() return values in apps/req.c. 6069 [Nils Larsch <nla@trustcenter.de>] 6070 6071 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6072 an end-of-file condition would erronously be flagged, when the CRLF 6073 was just at the end of a processed block. The bug was discovered when 6074 processing data through a buffering memory BIO handing the data to a 6075 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6076 <ptsekov@syntrex.com> and Nedelcho Stanev. 6077 [Lutz Jaenicke] 6078 6079 *) Implement a countermeasure against a vulnerability recently found 6080 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6081 before application data chunks to avoid the use of known IVs 6082 with data potentially chosen by the attacker. 6083 [Bodo Moeller] 6084 6085 *) Fix length checks in ssl3_get_client_hello(). 6086 [Bodo Moeller] 6087 6088 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6089 to prevent ssl3_read_internal() from incorrectly assuming that 6090 ssl3_read_bytes() found application data while handshake 6091 processing was enabled when in fact s->s3->in_read_app_data was 6092 merely automatically cleared during the initial handshake. 6093 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6094 6095 *) Fix object definitions for Private and Enterprise: they were not 6096 recognized in their shortname (=lowercase) representation. Extend 6097 obj_dat.pl to issue an error when using undefined keywords instead 6098 of silently ignoring the problem (Svenning Sorensen 6099 <sss@sss.dnsalias.net>). 6100 [Lutz Jaenicke] 6101 6102 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6103 generators, i.e. generators other than 2 and 5. (Previously, the 6104 code did not properly initialise the 'add' and 'rem' values to 6105 BN_generate_prime().) 6106 6107 In the new general case, we do not insist that 'generator' is 6108 actually a primitive root: This requirement is rather pointless; 6109 a generator of the order-q subgroup is just as good, if not 6110 better. 6111 [Bodo Moeller] 6112 6113 *) Map new X509 verification errors to alerts. Discovered and submitted by 6114 Tom Wu <tom@arcot.com>. 6115 [Lutz Jaenicke] 6116 6117 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6118 returning non-zero before the data has been completely received 6119 when using non-blocking I/O. 6120 [Bodo Moeller; problem pointed out by John Hughes] 6121 6122 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6123 [Ben Laurie, Lutz Jaenicke] 6124 6125 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6126 Yoram Zahavi <YoramZ@gilian.com>). 6127 [Lutz Jaenicke] 6128 6129 *) Add information about CygWin 1.3 and on, and preserve proper 6130 configuration for the versions before that. 6131 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6132 6133 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6134 check whether we deal with a copy of a session and do not delete from 6135 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6136 <izhar@checkpoint.com>. 6137 [Lutz Jaenicke] 6138 6139 *) Do not store session data into the internal session cache, if it 6140 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6141 flag is set). Proposed by Aslam <aslam@funk.com>. 6142 [Lutz Jaenicke] 6143 6144 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6145 value is 0. 6146 [Richard Levitte] 6147 6148 *) [In 0.9.6d-engine release:] 6149 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6150 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6151 6152 *) Add the configuration target linux-s390x. 6153 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6154 6155 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6156 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6157 variable as an indication that a ClientHello message has been 6158 received. As the flag value will be lost between multiple 6159 invocations of ssl3_accept when using non-blocking I/O, the 6160 function may not be aware that a handshake has actually taken 6161 place, thus preventing a new session from being added to the 6162 session cache. 6163 6164 To avoid this problem, we now set s->new_session to 2 instead of 6165 using a local variable. 6166 [Lutz Jaenicke, Bodo Moeller] 6167 6168 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6169 if the SSL_R_LENGTH_MISMATCH error is detected. 6170 [Geoff Thorpe, Bodo Moeller] 6171 6172 *) New 'shared_ldflag' column in Configure platform table. 6173 [Richard Levitte] 6174 6175 *) Fix EVP_CIPHER_mode macro. 6176 ["Dan S. Camper" <dan@bti.net>] 6177 6178 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6179 type, we must throw them away by setting rr->length to 0. 6180 [D P Chang <dpc@qualys.com>] 6181 6182 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6183 6184 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6185 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6186 worked incorrectly for those cases where range = 10..._2 and 6187 3*range is two bits longer than range.) 6188 [Bodo Moeller] 6189 6190 *) Only add signing time to PKCS7 structures if it is not already 6191 present. 6192 [Steve Henson] 6193 6194 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6195 OBJ_ld_ce should be OBJ_id_ce. 6196 Also some ip-pda OIDs in crypto/objects/objects.txt were 6197 incorrect (cf. RFC 3039). 6198 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6199 6200 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6201 returns early because it has nothing to do. 6202 [Andy Schneider <andy.schneider@bjss.co.uk>] 6203 6204 *) [In 0.9.6c-engine release:] 6205 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6206 [Andy Schneider <andy.schneider@bjss.co.uk>] 6207 6208 *) [In 0.9.6c-engine release:] 6209 Add support for Cryptographic Appliance's keyserver technology. 6210 (Use engine 'keyclient') 6211 [Cryptographic Appliances and Geoff Thorpe] 6212 6213 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6214 is called via tools/c89.sh because arguments have to be 6215 rearranged (all '-L' options must appear before the first object 6216 modules). 6217 [Richard Shapiro <rshapiro@abinitio.com>] 6218 6219 *) [In 0.9.6c-engine release:] 6220 Add support for Broadcom crypto accelerator cards, backported 6221 from 0.9.7. 6222 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6223 6224 *) [In 0.9.6c-engine release:] 6225 Add support for SureWare crypto accelerator cards from 6226 Baltimore Technologies. (Use engine 'sureware') 6227 [Baltimore Technologies and Mark Cox] 6228 6229 *) [In 0.9.6c-engine release:] 6230 Add support for crypto accelerator cards from Accelerated 6231 Encryption Processing, www.aep.ie. (Use engine 'aep') 6232 [AEP Inc. and Mark Cox] 6233 6234 *) Add a configuration entry for gcc on UnixWare. 6235 [Gary Benson <gbenson@redhat.com>] 6236 6237 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6238 messages are stored in a single piece (fixed-length part and 6239 variable-length part combined) and fix various bugs found on the way. 6240 [Bodo Moeller] 6241 6242 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6243 instead. BIO_gethostbyname() does not know what timeouts are 6244 appropriate, so entries would stay in cache even when they have 6245 become invalid. 6246 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6247 6248 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6249 faced with a pathologically small ClientHello fragment that does 6250 not contain client_version: Instead of aborting with an error, 6251 simply choose the highest available protocol version (i.e., 6252 TLS 1.0 unless it is disabled). In practice, ClientHello 6253 messages are never sent like this, but this change gives us 6254 strictly correct behaviour at least for TLS. 6255 [Bodo Moeller] 6256 6257 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6258 never resets s->method to s->ctx->method when called from within 6259 one of the SSL handshake functions. 6260 [Bodo Moeller; problem pointed out by Niko Baric] 6261 6262 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6263 (sent using the client's version number) if client_version is 6264 smaller than the protocol version in use. Also change 6265 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6266 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6267 the client will at least see that alert. 6268 [Bodo Moeller] 6269 6270 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6271 correctly. 6272 [Bodo Moeller] 6273 6274 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6275 client receives HelloRequest while in a handshake. 6276 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6277 6278 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6279 should end in 'break', not 'goto end' which circuments various 6280 cleanups done in state SSL_ST_OK. But session related stuff 6281 must be disabled for SSL_ST_OK in the case that we just sent a 6282 HelloRequest. 6283 6284 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6285 before just sending a HelloRequest. 6286 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6287 6288 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6289 reveal whether illegal block cipher padding was found or a MAC 6290 verification error occured. (Neither SSLerr() codes nor alerts 6291 are directly visible to potential attackers, but the information 6292 may leak via logfiles.) 6293 6294 Similar changes are not required for the SSL 2.0 implementation 6295 because the number of padding bytes is sent in clear for SSL 2.0, 6296 and the extra bytes are just ignored. However ssl/s2_pkt.c 6297 failed to verify that the purported number of padding bytes is in 6298 the legal range. 6299 [Bodo Moeller] 6300 6301 *) Add OpenUNIX-8 support including shared libraries 6302 (Boyd Lynn Gerber <gerberb@zenez.com>). 6303 [Lutz Jaenicke] 6304 6305 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6306 'wristwatch attack' using huge encoding parameters (cf. 6307 James H. Manger's CRYPTO 2001 paper). Note that the 6308 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6309 encoding parameters and hence was not vulnerable. 6310 [Bodo Moeller] 6311 6312 *) BN_sqr() bug fix. 6313 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6314 6315 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6316 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6317 followed by modular reduction. 6318 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6319 6320 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6321 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6322 [Bodo Moeller] 6323 6324 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6325 This function was broken, as the check for a new client hello message 6326 to handle SGC did not allow these large messages. 6327 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6328 [Lutz Jaenicke] 6329 6330 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6331 [Lutz Jaenicke] 6332 6333 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6334 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6335 [Lutz Jaenicke] 6336 6337 *) Rework the configuration and shared library support for Tru64 Unix. 6338 The configuration part makes use of modern compiler features and 6339 still retains old compiler behavior for those that run older versions 6340 of the OS. The shared library support part includes a variant that 6341 uses the RPATH feature, and is available through the special 6342 configuration target "alpha-cc-rpath", which will never be selected 6343 automatically. 6344 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6345 6346 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6347 with the same message size as in ssl3_get_certificate_request(). 6348 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6349 messages might inadvertently be reject as too long. 6350 [Petr Lampa <lampa@fee.vutbr.cz>] 6351 6352 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6353 [Andy Polyakov] 6354 6355 *) Modified SSL library such that the verify_callback that has been set 6356 specificly for an SSL object with SSL_set_verify() is actually being 6357 used. Before the change, a verify_callback set with this function was 6358 ignored and the verify_callback() set in the SSL_CTX at the time of 6359 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6360 to allow the necessary settings. 6361 [Lutz Jaenicke] 6362 6363 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6364 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6365 done automatically (in contradiction to the requirements of the C 6366 standard). This made problems when used from OpenSSH. 6367 [Lutz Jaenicke] 6368 6369 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6370 dh->length and always used 6371 6372 BN_rand_range(priv_key, dh->p). 6373 6374 BN_rand_range() is not necessary for Diffie-Hellman, and this 6375 specific range makes Diffie-Hellman unnecessarily inefficient if 6376 dh->length (recommended exponent length) is much smaller than the 6377 length of dh->p. We could use BN_rand_range() if the order of 6378 the subgroup was stored in the DH structure, but we only have 6379 dh->length. 6380 6381 So switch back to 6382 6383 BN_rand(priv_key, l, ...) 6384 6385 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6386 otherwise. 6387 [Bodo Moeller] 6388 6389 *) In 6390 6391 RSA_eay_public_encrypt 6392 RSA_eay_private_decrypt 6393 RSA_eay_private_encrypt (signing) 6394 RSA_eay_public_decrypt (signature verification) 6395 6396 (default implementations for RSA_public_encrypt, 6397 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6398 always reject numbers >= n. 6399 [Bodo Moeller] 6400 6401 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6402 to synchronize access to 'locking_thread'. This is necessary on 6403 systems where access to 'locking_thread' (an 'unsigned long' 6404 variable) is not atomic. 6405 [Bodo Moeller] 6406 6407 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6408 *before* setting the 'crypto_lock_rand' flag. The previous code had 6409 a race condition if 0 is a valid thread ID. 6410 [Travis Vitek <vitek@roguewave.com>] 6411 6412 *) Add support for shared libraries under Irix. 6413 [Albert Chin-A-Young <china@thewrittenword.com>] 6414 6415 *) Add configuration option to build on Linux on both big-endian and 6416 little-endian MIPS. 6417 [Ralf Baechle <ralf@uni-koblenz.de>] 6418 6419 *) Add the possibility to create shared libraries on HP-UX. 6420 [Richard Levitte] 6421 6422 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6423 6424 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6425 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6426 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6427 PRNG state recovery was possible based on the output of 6428 one PRNG request appropriately sized to gain knowledge on 6429 'md' followed by enough consecutive 1-byte PRNG requests 6430 to traverse all of 'state'. 6431 6432 1. When updating 'md_local' (the current thread's copy of 'md') 6433 during PRNG output generation, hash all of the previous 6434 'md_local' value, not just the half used for PRNG output. 6435 6436 2. Make the number of bytes from 'state' included into the hash 6437 independent from the number of PRNG bytes requested. 6438 6439 The first measure alone would be sufficient to avoid 6440 Markku-Juhani's attack. (Actually it had never occurred 6441 to me that the half of 'md_local' used for chaining was the 6442 half from which PRNG output bytes were taken -- I had always 6443 assumed that the secret half would be used.) The second 6444 measure makes sure that additional data from 'state' is never 6445 mixed into 'md_local' in small portions; this heuristically 6446 further strengthens the PRNG. 6447 [Bodo Moeller] 6448 6449 *) Fix crypto/bn/asm/mips3.s. 6450 [Andy Polyakov] 6451 6452 *) When only the key is given to "enc", the IV is undefined. Print out 6453 an error message in this case. 6454 [Lutz Jaenicke] 6455 6456 *) Handle special case when X509_NAME is empty in X509 printing routines. 6457 [Steve Henson] 6458 6459 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6460 positive and less than q. 6461 [Bodo Moeller] 6462 6463 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6464 used: it isn't thread safe and the add_lock_callback should handle 6465 that itself. 6466 [Paul Rose <Paul.Rose@bridge.com>] 6467 6468 *) Verify that incoming data obeys the block size in 6469 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6470 [Bodo Moeller] 6471 6472 *) Fix OAEP check. 6473 [Ulf M�ller, Bodo M�ller] 6474 6475 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6476 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6477 when fixing the server behaviour for backwards-compatible 'client 6478 hello' messages. (Note that the attack is impractical against 6479 SSL 3.0 and TLS 1.0 anyway because length and version checking 6480 means that the probability of guessing a valid ciphertext is 6481 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6482 paper.) 6483 6484 Before 0.9.5, the countermeasure (hide the error by generating a 6485 random 'decryption result') did not work properly because 6486 ERR_clear_error() was missing, meaning that SSL_get_error() would 6487 detect the supposedly ignored error. 6488 6489 Both problems are now fixed. 6490 [Bodo Moeller] 6491 6492 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6493 (previously it was 1024). 6494 [Bodo Moeller] 6495 6496 *) Fix for compatibility mode trust settings: ignore trust settings 6497 unless some valid trust or reject settings are present. 6498 [Steve Henson] 6499 6500 *) Fix for blowfish EVP: its a variable length cipher. 6501 [Steve Henson] 6502 6503 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6504 parameters in DSA public key structures and return an error in the 6505 DSA routines if parameters are absent. 6506 [Steve Henson] 6507 6508 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6509 in the current directory if neither $RANDFILE nor $HOME was set. 6510 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6511 caused some confusion to Windows users who haven't defined $HOME. 6512 Thus RAND_file_name() is changed again: e_os.h can define a 6513 DEFAULT_HOME, which will be used if $HOME is not set. 6514 For Windows, we use "C:"; on other platforms, we still require 6515 environment variables. 6516 6517 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6518 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6519 having multiple threads call RAND_poll() concurrently. 6520 [Bodo Moeller] 6521 6522 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6523 combination of a flag and a thread ID variable. 6524 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6525 flag), *other* threads can enter ssleay_add_bytes without obeying 6526 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6527 that they do not hold after the first thread unsets add_do_not_lock). 6528 [Bodo Moeller] 6529 6530 *) Change bctest again: '-x' expressions are not available in all 6531 versions of 'test'. 6532 [Bodo Moeller] 6533 6534 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6535 6536 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6537 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6538 6539 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6540 the default extension for executables, if any. Also, make the perl 6541 scripts that use symlink() to test if it really exists and use "cp" 6542 if it doesn't. All this made OpenSSL compilable and installable in 6543 CygWin. 6544 [Richard Levitte] 6545 6546 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6547 If SEQUENCE is length is indefinite just set c->slen to the total 6548 amount of data available. 6549 [Steve Henson, reported by shige@FreeBSD.org] 6550 [This change does not apply to 0.9.7.] 6551 6552 *) Change bctest to avoid here-documents inside command substitution 6553 (workaround for FreeBSD /bin/sh bug). 6554 For compatibility with Ultrix, avoid shell functions (introduced 6555 in the bctest version that searches along $PATH). 6556 [Bodo Moeller] 6557 6558 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6559 with des_encrypt() defined on some operating systems, like Solaris 6560 and UnixWare. 6561 [Richard Levitte] 6562 6563 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6564 On the Importance of Eliminating Errors in Cryptographic 6565 Computations, J. Cryptology 14 (2001) 2, 101-119, 6566 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6567 [Ulf Moeller] 6568 6569 *) MIPS assembler BIGNUM division bug fix. 6570 [Andy Polyakov] 6571 6572 *) Disabled incorrect Alpha assembler code. 6573 [Richard Levitte] 6574 6575 *) Fix PKCS#7 decode routines so they correctly update the length 6576 after reading an EOC for the EXPLICIT tag. 6577 [Steve Henson] 6578 [This change does not apply to 0.9.7.] 6579 6580 *) Fix bug in PKCS#12 key generation routines. This was triggered 6581 if a 3DES key was generated with a 0 initial byte. Include 6582 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6583 (but broken) behaviour. 6584 [Steve Henson] 6585 6586 *) Enhance bctest to search for a working bc along $PATH and print 6587 it when found. 6588 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6589 6590 *) Fix memory leaks in err.c: free err_data string if necessary; 6591 don't write to the wrong index in ERR_set_error_data. 6592 [Bodo Moeller] 6593 6594 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6595 did not exist. 6596 [Bodo Moeller] 6597 6598 *) Replace rdtsc with _emit statements for VC++ version 5. 6599 [Jeremy Cooper <jeremy@baymoo.org>] 6600 6601 *) Make it possible to reuse SSLv2 sessions. 6602 [Richard Levitte] 6603 6604 *) In copy_email() check for >= 0 as a return value for 6605 X509_NAME_get_index_by_NID() since 0 is a valid index. 6606 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6607 6608 *) Avoid coredump with unsupported or invalid public keys by checking if 6609 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6610 PKCS7_verify() fails with non detached data. 6611 [Steve Henson] 6612 6613 *) Don't use getenv in library functions when run as setuid/setgid. 6614 New function OPENSSL_issetugid(). 6615 [Ulf Moeller] 6616 6617 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6618 due to incorrect handling of multi-threading: 6619 6620 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6621 6622 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6623 6624 3. Count how many times MemCheck_off() has been called so that 6625 nested use can be treated correctly. This also avoids 6626 inband-signalling in the previous code (which relied on the 6627 assumption that thread ID 0 is impossible). 6628 [Bodo Moeller] 6629 6630 *) Add "-rand" option also to s_client and s_server. 6631 [Lutz Jaenicke] 6632 6633 *) Fix CPU detection on Irix 6.x. 6634 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6635 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6636 6637 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6638 was empty. 6639 [Steve Henson] 6640 [This change does not apply to 0.9.7.] 6641 6642 *) Use the cached encoding of an X509_NAME structure rather than 6643 copying it. This is apparently the reason for the libsafe "errors" 6644 but the code is actually correct. 6645 [Steve Henson] 6646 6647 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6648 Bleichenbacher's DSA attack. 6649 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6650 to be set and top=0 forces the highest bit to be set; top=-1 is new 6651 and leaves the highest bit random. 6652 [Ulf Moeller, Bodo Moeller] 6653 6654 *) In the NCONF_...-based implementations for CONF_... queries 6655 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6656 a temporary CONF structure with the data component set to NULL 6657 (which gives segmentation faults in lh_retrieve). 6658 Instead, use NULL for the CONF pointer in CONF_get_string and 6659 CONF_get_number (which may use environment variables) and directly 6660 return NULL from CONF_get_section. 6661 [Bodo Moeller] 6662 6663 *) Fix potential buffer overrun for EBCDIC. 6664 [Ulf Moeller] 6665 6666 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6667 keyUsage if basicConstraints absent for a CA. 6668 [Steve Henson] 6669 6670 *) Make SMIME_write_PKCS7() write mail header values with a format that 6671 is more generally accepted (no spaces before the semicolon), since 6672 some programs can't parse those values properly otherwise. Also make 6673 sure BIO's that break lines after each write do not create invalid 6674 headers. 6675 [Richard Levitte] 6676 6677 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6678 macros previously used would not encode an empty SEQUENCE OF 6679 and break the signature. 6680 [Steve Henson] 6681 [This change does not apply to 0.9.7.] 6682 6683 *) Zero the premaster secret after deriving the master secret in 6684 DH ciphersuites. 6685 [Steve Henson] 6686 6687 *) Add some EVP_add_digest_alias registrations (as found in 6688 OpenSSL_add_all_digests()) to SSL_library_init() 6689 aka OpenSSL_add_ssl_algorithms(). This provides improved 6690 compatibility with peers using X.509 certificates 6691 with unconventional AlgorithmIdentifier OIDs. 6692 [Bodo Moeller] 6693 6694 *) Fix for Irix with NO_ASM. 6695 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6696 6697 *) ./config script fixes. 6698 [Ulf Moeller, Richard Levitte] 6699 6700 *) Fix 'openssl passwd -1'. 6701 [Bodo Moeller] 6702 6703 *) Change PKCS12_key_gen_asc() so it can cope with non null 6704 terminated strings whose length is passed in the passlen 6705 parameter, for example from PEM callbacks. This was done 6706 by adding an extra length parameter to asc2uni(). 6707 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6708 6709 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6710 call failed, free the DSA structure. 6711 [Bodo Moeller] 6712 6713 *) Fix to uni2asc() to cope with zero length Unicode strings. 6714 These are present in some PKCS#12 files. 6715 [Steve Henson] 6716 6717 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6718 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6719 when writing a 32767 byte record. 6720 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6721 6722 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6723 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6724 6725 (RSA objects have a reference count access to which is protected 6726 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6727 so they are meant to be shared between threads.) 6728 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6729 "Reddie, Steven" <Steven.Reddie@ca.com>] 6730 6731 *) Fix a deadlock in CRYPTO_mem_leaks(). 6732 [Bodo Moeller] 6733 6734 *) Use better test patterns in bntest. 6735 [Ulf M�ller] 6736 6737 *) rand_win.c fix for Borland C. 6738 [Ulf M�ller] 6739 6740 *) BN_rshift bugfix for n == 0. 6741 [Bodo Moeller] 6742 6743 *) Add a 'bctest' script that checks for some known 'bc' bugs 6744 so that 'make test' does not abort just because 'bc' is broken. 6745 [Bodo Moeller] 6746 6747 *) Store verify_result within SSL_SESSION also for client side to 6748 avoid potential security hole. (Re-used sessions on the client side 6749 always resulted in verify_result==X509_V_OK, not using the original 6750 result of the server certificate verification.) 6751 [Lutz Jaenicke] 6752 6753 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6754 SSL3_RT_APPLICATION_DATA, return 0. 6755 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6756 [Bodo Moeller] 6757 6758 *) Fix SSL_peek: 6759 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6760 releases, have been re-implemented by renaming the previous 6761 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6762 and ssl3_read_internal, respectively, and adding 'peek' parameters 6763 to them. The new ssl[23]_{read,peek} functions are calls to 6764 ssl[23]_read_internal with the 'peek' flag set appropriately. 6765 A 'peek' parameter has also been added to ssl3_read_bytes, which 6766 does the actual work for ssl3_read_internal. 6767 [Bodo Moeller] 6768 6769 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6770 the method-specific "init()" handler. Also clean up ex_data after 6771 calling the method-specific "finish()" handler. Previously, this was 6772 happening the other way round. 6773 [Geoff Thorpe] 6774 6775 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6776 The previous value, 12, was not always sufficient for BN_mod_exp(). 6777 [Bodo Moeller] 6778 6779 *) Make sure that shared libraries get the internal name engine with 6780 the full version number and not just 0. This should mark the 6781 shared libraries as not backward compatible. Of course, this should 6782 be changed again when we can guarantee backward binary compatibility. 6783 [Richard Levitte] 6784 6785 *) Fix typo in get_cert_by_subject() in by_dir.c 6786 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6787 6788 *) Rework the system to generate shared libraries: 6789 6790 - Make note of the expected extension for the shared libraries and 6791 if there is a need for symbolic links from for example libcrypto.so.0 6792 to libcrypto.so.0.9.7. There is extended info in Configure for 6793 that. 6794 6795 - Make as few rebuilds of the shared libraries as possible. 6796 6797 - Still avoid linking the OpenSSL programs with the shared libraries. 6798 6799 - When installing, install the shared libraries separately from the 6800 static ones. 6801 [Richard Levitte] 6802 6803 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6804 6805 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6806 and not in SSL_clear because the latter is also used by the 6807 accept/connect functions; previously, the settings made by 6808 SSL_set_read_ahead would be lost during the handshake. 6809 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6810 6811 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6812 Previously, it would create entries for disableed algorithms no 6813 matter what. 6814 [Richard Levitte] 6815 6816 *) Added several new manual pages for SSL_* function. 6817 [Lutz Jaenicke] 6818 6819 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6820 6821 *) In ssl23_get_client_hello, generate an error message when faced 6822 with an initial SSL 3.0/TLS record that is too small to contain the 6823 first two bytes of the ClientHello message, i.e. client_version. 6824 (Note that this is a pathologic case that probably has never happened 6825 in real life.) The previous approach was to use the version number 6826 from the record header as a substitute; but our protocol choice 6827 should not depend on that one because it is not authenticated 6828 by the Finished messages. 6829 [Bodo Moeller] 6830 6831 *) More robust randomness gathering functions for Windows. 6832 [Jeffrey Altman <jaltman@columbia.edu>] 6833 6834 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6835 not set then we don't setup the error code for issuer check errors 6836 to avoid possibly overwriting other errors which the callback does 6837 handle. If an application does set the flag then we assume it knows 6838 what it is doing and can handle the new informational codes 6839 appropriately. 6840 [Steve Henson] 6841 6842 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6843 a general "ANY" type, as such it should be able to decode anything 6844 including tagged types. However it didn't check the class so it would 6845 wrongly interpret tagged types in the same way as their universal 6846 counterpart and unknown types were just rejected. Changed so that the 6847 tagged and unknown types are handled in the same way as a SEQUENCE: 6848 that is the encoding is stored intact. There is also a new type 6849 "V_ASN1_OTHER" which is used when the class is not universal, in this 6850 case we have no idea what the actual type is so we just lump them all 6851 together. 6852 [Steve Henson] 6853 6854 *) On VMS, stdout may very well lead to a file that is written to 6855 in a record-oriented fashion. That means that every write() will 6856 write a separate record, which will be read separately by the 6857 programs trying to read from it. This can be very confusing. 6858 6859 The solution is to put a BIO filter in the way that will buffer 6860 text until a linefeed is reached, and then write everything a 6861 line at a time, so every record written will be an actual line, 6862 not chunks of lines and not (usually doesn't happen, but I've 6863 seen it once) several lines in one record. BIO_f_linebuffer() is 6864 the answer. 6865 6866 Currently, it's a VMS-only method, because that's where it has 6867 been tested well enough. 6868 [Richard Levitte] 6869 6870 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6871 it can return incorrect results. 6872 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6873 but it was in 0.9.6-beta[12].) 6874 [Bodo Moeller] 6875 6876 *) Disable the check for content being present when verifying detached 6877 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6878 include zero length content when signing messages. 6879 [Steve Henson] 6880 6881 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6882 BIO_ctrl (for BIO pairs). 6883 [Bodo M�ller] 6884 6885 *) Add DSO method for VMS. 6886 [Richard Levitte] 6887 6888 *) Bug fix: Montgomery multiplication could produce results with the 6889 wrong sign. 6890 [Ulf M�ller] 6891 6892 *) Add RPM specification openssl.spec and modify it to build three 6893 packages. The default package contains applications, application 6894 documentation and run-time libraries. The devel package contains 6895 include files, static libraries and function documentation. The 6896 doc package contains the contents of the doc directory. The original 6897 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6898 [Richard Levitte] 6899 6900 *) Add a large number of documentation files for many SSL routines. 6901 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6902 6903 *) Add a configuration entry for Sony News 4. 6904 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6905 6906 *) Don't set the two most significant bits to one when generating a 6907 random number < q in the DSA library. 6908 [Ulf M�ller] 6909 6910 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 6911 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 6912 the underlying transport is blocking) if a handshake took place. 6913 (The default behaviour is needed by applications such as s_client 6914 and s_server that use select() to determine when to use SSL_read; 6915 but for applications that know in advance when to expect data, it 6916 just makes things more complicated.) 6917 [Bodo Moeller] 6918 6919 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 6920 from EGD. 6921 [Ben Laurie] 6922 6923 *) Add a few more EBCDIC conditionals that make `req' and `x509' 6924 work better on such systems. 6925 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 6926 6927 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 6928 Update PKCS12_parse() so it copies the friendlyName and the 6929 keyid to the certificates aux info. 6930 [Steve Henson] 6931 6932 *) Fix bug in PKCS7_verify() which caused an infinite loop 6933 if there was more than one signature. 6934 [Sven Uszpelkat <su@celocom.de>] 6935 6936 *) Major change in util/mkdef.pl to include extra information 6937 about each symbol, as well as presentig variables as well 6938 as functions. This change means that there's n more need 6939 to rebuild the .num files when some algorithms are excluded. 6940 [Richard Levitte] 6941 6942 *) Allow the verify time to be set by an application, 6943 rather than always using the current time. 6944 [Steve Henson] 6945 6946 *) Phase 2 verify code reorganisation. The certificate 6947 verify code now looks up an issuer certificate by a 6948 number of criteria: subject name, authority key id 6949 and key usage. It also verifies self signed certificates 6950 by the same criteria. The main comparison function is 6951 X509_check_issued() which performs these checks. 6952 6953 Lot of changes were necessary in order to support this 6954 without completely rewriting the lookup code. 6955 6956 Authority and subject key identifier are now cached. 6957 6958 The LHASH 'certs' is X509_STORE has now been replaced 6959 by a STACK_OF(X509_OBJECT). This is mainly because an 6960 LHASH can't store or retrieve multiple objects with 6961 the same hash value. 6962 6963 As a result various functions (which were all internal 6964 use only) have changed to handle the new X509_STORE 6965 structure. This will break anything that messed round 6966 with X509_STORE internally. 6967 6968 The functions X509_STORE_add_cert() now checks for an 6969 exact match, rather than just subject name. 6970 6971 The X509_STORE API doesn't directly support the retrieval 6972 of multiple certificates matching a given criteria, however 6973 this can be worked round by performing a lookup first 6974 (which will fill the cache with candidate certificates) 6975 and then examining the cache for matches. This is probably 6976 the best we can do without throwing out X509_LOOKUP 6977 entirely (maybe later...). 6978 6979 The X509_VERIFY_CTX structure has been enhanced considerably. 6980 6981 All certificate lookup operations now go via a get_issuer() 6982 callback. Although this currently uses an X509_STORE it 6983 can be replaced by custom lookups. This is a simple way 6984 to bypass the X509_STORE hackery necessary to make this 6985 work and makes it possible to use more efficient techniques 6986 in future. A very simple version which uses a simple 6987 STACK for its trusted certificate store is also provided 6988 using X509_STORE_CTX_trusted_stack(). 6989 6990 The verify_cb() and verify() callbacks now have equivalents 6991 in the X509_STORE_CTX structure. 6992 6993 X509_STORE_CTX also has a 'flags' field which can be used 6994 to customise the verify behaviour. 6995 [Steve Henson] 6996 6997 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 6998 excludes S/MIME capabilities. 6999 [Steve Henson] 7000 7001 *) When a certificate request is read in keep a copy of the 7002 original encoding of the signed data and use it when outputing 7003 again. Signatures then use the original encoding rather than 7004 a decoded, encoded version which may cause problems if the 7005 request is improperly encoded. 7006 [Steve Henson] 7007 7008 *) For consistency with other BIO_puts implementations, call 7009 buffer_write(b, ...) directly in buffer_puts instead of calling 7010 BIO_write(b, ...). 7011 7012 In BIO_puts, increment b->num_write as in BIO_write. 7013 [Peter.Sylvester@EdelWeb.fr] 7014 7015 *) Fix BN_mul_word for the case where the word is 0. (We have to use 7016 BN_zero, we may not return a BIGNUM with an array consisting of 7017 words set to zero.) 7018 [Bodo Moeller] 7019 7020 *) Avoid calling abort() from within the library when problems are 7021 detected, except if preprocessor symbols have been defined 7022 (such as REF_CHECK, BN_DEBUG etc.). 7023 [Bodo Moeller] 7024 7025 *) New openssl application 'rsautl'. This utility can be 7026 used for low level RSA operations. DER public key 7027 BIO/fp routines also added. 7028 [Steve Henson] 7029 7030 *) New Configure entry and patches for compiling on QNX 4. 7031 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 7032 7033 *) A demo state-machine implementation was sponsored by 7034 Nuron (http://www.nuron.com/) and is now available in 7035 demos/state_machine. 7036 [Ben Laurie] 7037 7038 *) New options added to the 'dgst' utility for signature 7039 generation and verification. 7040 [Steve Henson] 7041 7042 *) Unrecognized PKCS#7 content types are now handled via a 7043 catch all ASN1_TYPE structure. This allows unsupported 7044 types to be stored as a "blob" and an application can 7045 encode and decode it manually. 7046 [Steve Henson] 7047 7048 *) Fix various signed/unsigned issues to make a_strex.c 7049 compile under VC++. 7050 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 7051 7052 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 7053 length if passed a buffer. ASN1_INTEGER_to_BN failed 7054 if passed a NULL BN and its argument was negative. 7055 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 7056 7057 *) Modification to PKCS#7 encoding routines to output definite 7058 length encoding. Since currently the whole structures are in 7059 memory there's not real point in using indefinite length 7060 constructed encoding. However if OpenSSL is compiled with 7061 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 7062 [Steve Henson] 7063 7064 *) Added BIO_vprintf() and BIO_vsnprintf(). 7065 [Richard Levitte] 7066 7067 *) Added more prefixes to parse for in the the strings written 7068 through a logging bio, to cover all the levels that are available 7069 through syslog. The prefixes are now: 7070 7071 PANIC, EMERG, EMR => LOG_EMERG 7072 ALERT, ALR => LOG_ALERT 7073 CRIT, CRI => LOG_CRIT 7074 ERROR, ERR => LOG_ERR 7075 WARNING, WARN, WAR => LOG_WARNING 7076 NOTICE, NOTE, NOT => LOG_NOTICE 7077 INFO, INF => LOG_INFO 7078 DEBUG, DBG => LOG_DEBUG 7079 7080 and as before, if none of those prefixes are present at the 7081 beginning of the string, LOG_ERR is chosen. 7082 7083 On Win32, the LOG_* levels are mapped according to this: 7084 7085 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7086 LOG_WARNING => EVENTLOG_WARNING_TYPE 7087 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7088 7089 [Richard Levitte] 7090 7091 *) Made it possible to reconfigure with just the configuration 7092 argument "reconf" or "reconfigure". The command line arguments 7093 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7094 and are retrieved from there when reconfiguring. 7095 [Richard Levitte] 7096 7097 *) MD4 implemented. 7098 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7099 7100 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7101 [Richard Levitte] 7102 7103 *) The obj_dat.pl script was messing up the sorting of object 7104 names. The reason was that it compared the quoted version 7105 of strings as a result "OCSP" > "OCSP Signing" because 7106 " > SPACE. Changed script to store unquoted versions of 7107 names and add quotes on output. It was also omitting some 7108 names from the lookup table if they were given a default 7109 value (that is if SN is missing it is given the same 7110 value as LN and vice versa), these are now added on the 7111 grounds that if an object has a name we should be able to 7112 look it up. Finally added warning output when duplicate 7113 short or long names are found. 7114 [Steve Henson] 7115 7116 *) Changes needed for Tandem NSK. 7117 [Scott Uroff <scott@xypro.com>] 7118 7119 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7120 RSA_padding_check_SSLv23(), special padding was never detected 7121 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7122 version rollback attacks was not effective. 7123 7124 In s23_clnt.c, don't use special rollback-attack detection padding 7125 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7126 client; similarly, in s23_srvr.c, don't do the rollback check if 7127 SSL 2.0 is the only protocol enabled in the server. 7128 [Bodo Moeller] 7129 7130 *) Make it possible to get hexdumps of unprintable data with 'openssl 7131 asn1parse'. By implication, the functions ASN1_parse_dump() and 7132 BIO_dump_indent() are added. 7133 [Richard Levitte] 7134 7135 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7136 these print out strings and name structures based on various 7137 flags including RFC2253 support and proper handling of 7138 multibyte characters. Added options to the 'x509' utility 7139 to allow the various flags to be set. 7140 [Steve Henson] 7141 7142 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7143 Also change the functions X509_cmp_current_time() and 7144 X509_gmtime_adj() work with an ASN1_TIME structure, 7145 this will enable certificates using GeneralizedTime in validity 7146 dates to be checked. 7147 [Steve Henson] 7148 7149 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7150 negative public key encodings) on by default, 7151 NO_NEG_PUBKEY_BUG can be set to disable it. 7152 [Steve Henson] 7153 7154 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7155 content octets. An i2c_ASN1_OBJECT is unnecessary because 7156 the encoding can be trivially obtained from the structure. 7157 [Steve Henson] 7158 7159 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7160 not read locks (CRYPTO_r_[un]lock). 7161 [Bodo Moeller] 7162 7163 *) A first attempt at creating official support for shared 7164 libraries through configuration. I've kept it so the 7165 default is static libraries only, and the OpenSSL programs 7166 are always statically linked for now, but there are 7167 preparations for dynamic linking in place. 7168 This has been tested on Linux and Tru64. 7169 [Richard Levitte] 7170 7171 *) Randomness polling function for Win9x, as described in: 7172 Peter Gutmann, Software Generation of Practically Strong 7173 Random Numbers. 7174 [Ulf M�ller] 7175 7176 *) Fix so PRNG is seeded in req if using an already existing 7177 DSA key. 7178 [Steve Henson] 7179 7180 *) New options to smime application. -inform and -outform 7181 allow alternative formats for the S/MIME message including 7182 PEM and DER. The -content option allows the content to be 7183 specified separately. This should allow things like Netscape 7184 form signing output easier to verify. 7185 [Steve Henson] 7186 7187 *) Fix the ASN1 encoding of tags using the 'long form'. 7188 [Steve Henson] 7189 7190 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7191 STRING types. These convert content octets to and from the 7192 underlying type. The actual tag and length octets are 7193 already assumed to have been read in and checked. These 7194 are needed because all other string types have virtually 7195 identical handling apart from the tag. By having versions 7196 of the ASN1 functions that just operate on content octets 7197 IMPLICIT tagging can be handled properly. It also allows 7198 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7199 and ASN1_INTEGER are identical apart from the tag. 7200 [Steve Henson] 7201 7202 *) Change the handling of OID objects as follows: 7203 7204 - New object identifiers are inserted in objects.txt, following 7205 the syntax given in objects.README. 7206 - objects.pl is used to process obj_mac.num and create a new 7207 obj_mac.h. 7208 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7209 obj_mac.h. 7210 7211 This is currently kind of a hack, and the perl code in objects.pl 7212 isn't very elegant, but it works as I intended. The simplest way 7213 to check that it worked correctly is to look in obj_dat.h and 7214 check the array nid_objs and make sure the objects haven't moved 7215 around (this is important!). Additions are OK, as well as 7216 consistent name changes. 7217 [Richard Levitte] 7218 7219 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7220 [Bodo Moeller] 7221 7222 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7223 The given file adds to whatever has already been seeded into the 7224 random pool through the RANDFILE configuration file option or 7225 environment variable, or the default random state file. 7226 [Richard Levitte] 7227 7228 *) mkstack.pl now sorts each macro group into lexical order. 7229 Previously the output order depended on the order the files 7230 appeared in the directory, resulting in needless rewriting 7231 of safestack.h . 7232 [Steve Henson] 7233 7234 *) Patches to make OpenSSL compile under Win32 again. Mostly 7235 work arounds for the VC++ problem that it treats func() as 7236 func(void). Also stripped out the parts of mkdef.pl that 7237 added extra typesafe functions: these no longer exist. 7238 [Steve Henson] 7239 7240 *) Reorganisation of the stack code. The macros are now all 7241 collected in safestack.h . Each macro is defined in terms of 7242 a "stack macro" of the form SKM_<name>(type, a, b). The 7243 DEBUG_SAFESTACK is now handled in terms of function casts, 7244 this has the advantage of retaining type safety without the 7245 use of additional functions. If DEBUG_SAFESTACK is not defined 7246 then the non typesafe macros are used instead. Also modified the 7247 mkstack.pl script to handle the new form. Needs testing to see 7248 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7249 the default if no major problems. Similar behaviour for ASN1_SET_OF 7250 and PKCS12_STACK_OF. 7251 [Steve Henson] 7252 7253 *) When some versions of IIS use the 'NET' form of private key the 7254 key derivation algorithm is different. Normally MD5(password) is 7255 used as a 128 bit RC4 key. In the modified case 7256 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7257 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7258 as the old Netscape_RSA functions except they have an additional 7259 'sgckey' parameter which uses the modified algorithm. Also added 7260 an -sgckey command line option to the rsa utility. Thanks to 7261 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7262 algorithm to openssl-dev. 7263 [Steve Henson] 7264 7265 *) The evp_local.h macros were using 'c.##kname' which resulted in 7266 invalid expansion on some systems (SCO 5.0.5 for example). 7267 Corrected to 'c.kname'. 7268 [Phillip Porch <root@theporch.com>] 7269 7270 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7271 a STACK of email addresses from a certificate or request, these look 7272 in the subject name and the subject alternative name extensions and 7273 omit any duplicate addresses. 7274 [Steve Henson] 7275 7276 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7277 This makes DSA verification about 2 % faster. 7278 [Bodo Moeller] 7279 7280 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7281 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7282 plus overhead for 1024 bit moduli). 7283 This makes exponentiations about 0.5 % faster for 1024 bit 7284 exponents (as measured by "openssl speed rsa2048"). 7285 [Bodo Moeller] 7286 7287 *) Rename memory handling macros to avoid conflicts with other 7288 software: 7289 Malloc => OPENSSL_malloc 7290 Malloc_locked => OPENSSL_malloc_locked 7291 Realloc => OPENSSL_realloc 7292 Free => OPENSSL_free 7293 [Richard Levitte] 7294 7295 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7296 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7297 [Bodo Moeller] 7298 7299 *) CygWin32 support. 7300 [John Jarvie <jjarvie@newsguy.com>] 7301 7302 *) The type-safe stack code has been rejigged. It is now only compiled 7303 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7304 by default all type-specific stack functions are "#define"d back to 7305 standard stack functions. This results in more streamlined output 7306 but retains the type-safety checking possibilities of the original 7307 approach. 7308 [Geoff Thorpe] 7309 7310 *) The STACK code has been cleaned up, and certain type declarations 7311 that didn't make a lot of sense have been brought in line. This has 7312 also involved a cleanup of sorts in safestack.h to more correctly 7313 map type-safe stack functions onto their plain stack counterparts. 7314 This work has also resulted in a variety of "const"ifications of 7315 lots of the code, especially "_cmp" operations which should normally 7316 be prototyped with "const" parameters anyway. 7317 [Geoff Thorpe] 7318 7319 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7320 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7321 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7322 where all of 'md' is used each time the PRNG is used, but 'state' 7323 is used only indexed by a cyclic counter. As entropy may not be 7324 well distributed from the beginning, 'md' is important as a 7325 chaining variable. However, the output function chains only half 7326 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7327 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7328 in all of 'state' being rewritten, with the new values depending 7329 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7330 [Bodo Moeller] 7331 7332 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7333 the handshake is continued after ssl_verify_cert_chain(); 7334 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7335 can lead to 'unexplainable' connection aborts later. 7336 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7337 7338 *) Major EVP API cipher revision. 7339 Add hooks for extra EVP features. This allows various cipher 7340 parameters to be set in the EVP interface. Support added for variable 7341 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7342 setting of RC2 and RC5 parameters. 7343 7344 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7345 ciphers. 7346 7347 Remove lots of duplicated code from the EVP library. For example *every* 7348 cipher init() function handles the 'iv' in the same way according to the 7349 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7350 for CFB and OFB modes they zero ctx->num. 7351 7352 New functionality allows removal of S/MIME code RC2 hack. 7353 7354 Most of the routines have the same form and so can be declared in terms 7355 of macros. 7356 7357 By shifting this to the top level EVP_CipherInit() it can be removed from 7358 all individual ciphers. If the cipher wants to handle IVs or keys 7359 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7360 flags. 7361 7362 Change lots of functions like EVP_EncryptUpdate() to now return a 7363 value: although software versions of the algorithms cannot fail 7364 any installed hardware versions can. 7365 [Steve Henson] 7366 7367 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7368 this option is set, tolerate broken clients that send the negotiated 7369 protocol version number instead of the requested protocol version 7370 number. 7371 [Bodo Moeller] 7372 7373 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7374 i.e. non-zero for export ciphersuites, zero otherwise. 7375 Previous versions had this flag inverted, inconsistent with 7376 rsa_tmp_cb (..._TMP_RSA_CB). 7377 [Bodo Moeller; problem reported by Amit Chopra] 7378 7379 *) Add missing DSA library text string. Work around for some IIS 7380 key files with invalid SEQUENCE encoding. 7381 [Steve Henson] 7382 7383 *) Add a document (doc/standards.txt) that list all kinds of standards 7384 and so on that are implemented in OpenSSL. 7385 [Richard Levitte] 7386 7387 *) Enhance c_rehash script. Old version would mishandle certificates 7388 with the same subject name hash and wouldn't handle CRLs at all. 7389 Added -fingerprint option to crl utility, to support new c_rehash 7390 features. 7391 [Steve Henson] 7392 7393 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7394 [Ulf M�ller] 7395 7396 *) Fix for SSL server purpose checking. Server checking was 7397 rejecting certificates which had extended key usage present 7398 but no ssl client purpose. 7399 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7400 7401 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7402 is a little unclear about how a blank password is handled. 7403 Since the password in encoded as a BMPString with terminating 7404 double NULL a zero length password would end up as just the 7405 double NULL. However no password at all is different and is 7406 handled differently in the PKCS#12 key generation code. NS 7407 treats a blank password as zero length. MSIE treats it as no 7408 password on export: but it will try both on import. We now do 7409 the same: PKCS12_parse() tries zero length and no password if 7410 the password is set to "" or NULL (NULL is now a valid password: 7411 it wasn't before) as does the pkcs12 application. 7412 [Steve Henson] 7413 7414 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7415 perror when PEM_read_bio_X509_REQ fails, the error message must 7416 be obtained from the error queue. 7417 [Bodo Moeller] 7418 7419 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7420 it in ERR_remove_state if appropriate, and change ERR_get_state 7421 accordingly to avoid race conditions (this is necessary because 7422 thread_hash is no longer constant once set). 7423 [Bodo Moeller] 7424 7425 *) Bugfix for linux-elf makefile.one. 7426 [Ulf M�ller] 7427 7428 *) RSA_get_default_method() will now cause a default 7429 RSA_METHOD to be chosen if one doesn't exist already. 7430 Previously this was only set during a call to RSA_new() 7431 or RSA_new_method(NULL) meaning it was possible for 7432 RSA_get_default_method() to return NULL. 7433 [Geoff Thorpe] 7434 7435 *) Added native name translation to the existing DSO code 7436 that will convert (if the flag to do so is set) filenames 7437 that are sufficiently small and have no path information 7438 into a canonical native form. Eg. "blah" converted to 7439 "libblah.so" or "blah.dll" etc. 7440 [Geoff Thorpe] 7441 7442 *) New function ERR_error_string_n(e, buf, len) which is like 7443 ERR_error_string(e, buf), but writes at most 'len' bytes 7444 including the 0 terminator. For ERR_error_string_n, 'buf' 7445 may not be NULL. 7446 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7447 7448 *) CONF library reworked to become more general. A new CONF 7449 configuration file reader "class" is implemented as well as a 7450 new functions (NCONF_*, for "New CONF") to handle it. The now 7451 old CONF_* functions are still there, but are reimplemented to 7452 work in terms of the new functions. Also, a set of functions 7453 to handle the internal storage of the configuration data is 7454 provided to make it easier to write new configuration file 7455 reader "classes" (I can definitely see something reading a 7456 configuration file in XML format, for example), called _CONF_*, 7457 or "the configuration storage API"... 7458 7459 The new configuration file reading functions are: 7460 7461 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7462 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7463 7464 NCONF_default, NCONF_WIN32 7465 7466 NCONF_dump_fp, NCONF_dump_bio 7467 7468 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7469 NCONF_new creates a new CONF object. This works in the same way 7470 as other interfaces in OpenSSL, like the BIO interface. 7471 NCONF_dump_* dump the internal storage of the configuration file, 7472 which is useful for debugging. All other functions take the same 7473 arguments as the old CONF_* functions wth the exception of the 7474 first that must be a `CONF *' instead of a `LHASH *'. 7475 7476 To make it easer to use the new classes with the old CONF_* functions, 7477 the function CONF_set_default_method is provided. 7478 [Richard Levitte] 7479 7480 *) Add '-tls1' option to 'openssl ciphers', which was already 7481 mentioned in the documentation but had not been implemented. 7482 (This option is not yet really useful because even the additional 7483 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7484 [Bodo Moeller] 7485 7486 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7487 OpenSSL-based applications) load shared libraries and bind to 7488 them in a portable way. 7489 [Geoff Thorpe, with contributions from Richard Levitte] 7490 7491 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7492 7493 *) Make sure _lrotl and _lrotr are only used with MSVC. 7494 7495 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7496 (the default implementation of RAND_status). 7497 7498 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7499 to '-clrext' (= clear extensions), as intended and documented. 7500 [Bodo Moeller; inconsistency pointed out by Michael Attili 7501 <attili@amaxo.com>] 7502 7503 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7504 was larger than the MD block size. 7505 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7506 7507 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7508 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7509 using the passed key: if the passed key was a private key the result 7510 of X509_print(), for example, would be to print out all the private key 7511 components. 7512 [Steve Henson] 7513 7514 *) des_quad_cksum() byte order bug fix. 7515 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7516 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7517 7518 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7519 discouraged. 7520 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7521 7522 *) For easily testing in shell scripts whether some command 7523 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7524 returns with exit code 0 iff no command of the given name is available. 7525 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7526 the output goes to stdout and nothing is printed to stderr. 7527 Additional arguments are always ignored. 7528 7529 Since for each cipher there is a command of the same name, 7530 the 'no-cipher' compilation switches can be tested this way. 7531 7532 ('openssl no-XXX' is not able to detect pseudo-commands such 7533 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7534 [Bodo Moeller] 7535 7536 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7537 [Bodo Moeller] 7538 7539 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7540 is set; it will be thrown away anyway because each handshake creates 7541 its own key. 7542 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7543 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7544 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7545 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7546 [Bodo Moeller] 7547 7548 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7549 'Q' and 'R' lose their special meanings (quit/renegotiate). 7550 This is part of what -quiet does; unlike -quiet, -ign_eof 7551 does not suppress any output. 7552 [Richard Levitte] 7553 7554 *) Add compatibility options to the purpose and trust code. The 7555 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7556 accepts a certificate or CA, this was the previous behaviour, 7557 with all the associated security issues. 7558 7559 X509_TRUST_COMPAT is the old trust behaviour: only and 7560 automatically trust self signed roots in certificate store. A 7561 new trust setting X509_TRUST_DEFAULT is used to specify that 7562 a purpose has no associated trust setting and it should instead 7563 use the value in the default purpose. 7564 [Steve Henson] 7565 7566 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7567 and fix a memory leak. 7568 [Steve Henson] 7569 7570 *) In util/mkerr.pl (which implements 'make errors'), preserve 7571 reason strings from the previous version of the .c file, as 7572 the default to have only downcase letters (and digits) in 7573 automatically generated reasons codes is not always appropriate. 7574 [Bodo Moeller] 7575 7576 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7577 using strerror. Previously, ERR_reason_error_string() returned 7578 library names as reason strings for SYSerr; but SYSerr is a special 7579 case where small numbers are errno values, not library numbers. 7580 [Bodo Moeller] 7581 7582 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7583 converts DSA parameters into DH parameters. (When creating parameters, 7584 DSA_generate_parameters is used.) 7585 [Bodo Moeller] 7586 7587 *) Include 'length' (recommended exponent length) in C code generated 7588 by 'openssl dhparam -C'. 7589 [Bodo Moeller] 7590 7591 *) The second argument to set_label in perlasm was already being used 7592 so couldn't be used as a "file scope" flag. Moved to third argument 7593 which was free. 7594 [Steve Henson] 7595 7596 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7597 instead of RAND_bytes for encryption IVs and salts. 7598 [Bodo Moeller] 7599 7600 *) Include RAND_status() into RAND_METHOD instead of implementing 7601 it only for md_rand.c Otherwise replacing the PRNG by calling 7602 RAND_set_rand_method would be impossible. 7603 [Bodo Moeller] 7604 7605 *) Don't let DSA_generate_key() enter an infinite loop if the random 7606 number generation fails. 7607 [Bodo Moeller] 7608 7609 *) New 'rand' application for creating pseudo-random output. 7610 [Bodo Moeller] 7611 7612 *) Added configuration support for Linux/IA64 7613 [Rolf Haberrecker <rolf@suse.de>] 7614 7615 *) Assembler module support for Mingw32. 7616 [Ulf M�ller] 7617 7618 *) Shared library support for HPUX (in shlib/). 7619 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7620 7621 *) Shared library support for Solaris gcc. 7622 [Lutz Behnke <behnke@trustcenter.de>] 7623 7624 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7625 7626 *) PKCS7_encrypt() was adding text MIME headers twice because they 7627 were added manually and by SMIME_crlf_copy(). 7628 [Steve Henson] 7629 7630 *) In bntest.c don't call BN_rand with zero bits argument. 7631 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7632 7633 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7634 case was implemented. This caused BN_div_recp() to fail occasionally. 7635 [Ulf M�ller] 7636 7637 *) Add an optional second argument to the set_label() in the perl 7638 assembly language builder. If this argument exists and is set 7639 to 1 it signals that the assembler should use a symbol whose 7640 scope is the entire file, not just the current function. This 7641 is needed with MASM which uses the format label:: for this scope. 7642 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7643 7644 *) Change the ASN1 types so they are typedefs by default. Before 7645 almost all types were #define'd to ASN1_STRING which was causing 7646 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7647 for example. 7648 [Steve Henson] 7649 7650 *) Change names of new functions to the new get1/get0 naming 7651 convention: After 'get1', the caller owns a reference count 7652 and has to call ..._free; 'get0' returns a pointer to some 7653 data structure without incrementing reference counters. 7654 (Some of the existing 'get' functions increment a reference 7655 counter, some don't.) 7656 Similarly, 'set1' and 'add1' functions increase reference 7657 counters or duplicate objects. 7658 [Steve Henson] 7659 7660 *) Allow for the possibility of temp RSA key generation failure: 7661 the code used to assume it always worked and crashed on failure. 7662 [Steve Henson] 7663 7664 *) Fix potential buffer overrun problem in BIO_printf(). 7665 [Ulf M�ller, using public domain code by Patrick Powell; problem 7666 pointed out by David Sacerdote <das33@cornell.edu>] 7667 7668 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7669 RAND_egd() and RAND_status(). In the command line application, 7670 the EGD socket can be specified like a seed file using RANDFILE 7671 or -rand. 7672 [Ulf M�ller] 7673 7674 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7675 Some CAs (e.g. Verisign) distribute certificates in this form. 7676 [Steve Henson] 7677 7678 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7679 list to exclude them. This means that no special compilation option 7680 is needed to use anonymous DH: it just needs to be included in the 7681 cipher list. 7682 [Steve Henson] 7683 7684 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7685 EVP_MD_type. The old functionality is available in a new macro called 7686 EVP_MD_md(). Change code that uses it and update docs. 7687 [Steve Henson] 7688 7689 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7690 where the 'void *' argument is replaced by a function pointer argument. 7691 Previously 'void *' was abused to point to functions, which works on 7692 many platforms, but is not correct. As these functions are usually 7693 called by macros defined in OpenSSL header files, most source code 7694 should work without changes. 7695 [Richard Levitte] 7696 7697 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7698 sections with information on -D... compiler switches used for 7699 compiling the library so that applications can see them. To enable 7700 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7701 must be defined. E.g., 7702 #define OPENSSL_ALGORITHM_DEFINES 7703 #include <openssl/opensslconf.h> 7704 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7705 [Richard Levitte, Ulf and Bodo M�ller] 7706 7707 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7708 record layer. 7709 [Bodo Moeller] 7710 7711 *) Change the 'other' type in certificate aux info to a STACK_OF 7712 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7713 the required ASN1 format: arbitrary types determined by an OID. 7714 [Steve Henson] 7715 7716 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7717 argument to 'req'. This is not because the function is newer or 7718 better than others it just uses the work 'NEW' in the certificate 7719 request header lines. Some software needs this. 7720 [Steve Henson] 7721 7722 *) Reorganise password command line arguments: now passwords can be 7723 obtained from various sources. Delete the PEM_cb function and make 7724 it the default behaviour: i.e. if the callback is NULL and the 7725 usrdata argument is not NULL interpret it as a null terminated pass 7726 phrase. If usrdata and the callback are NULL then the pass phrase 7727 is prompted for as usual. 7728 [Steve Henson] 7729 7730 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7731 the support is automatically enabled. The resulting binaries will 7732 autodetect the card and use it if present. 7733 [Ben Laurie and Compaq Inc.] 7734 7735 *) Work around for Netscape hang bug. This sends certificate request 7736 and server done in one record. Since this is perfectly legal in the 7737 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7738 the bugs/SSLv3 entry for more info. 7739 [Steve Henson] 7740 7741 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7742 [Andy Polyakov] 7743 7744 *) Add -rand argument to smime and pkcs12 applications and read/write 7745 of seed file. 7746 [Steve Henson] 7747 7748 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7749 [Bodo Moeller] 7750 7751 *) Add command line password options to the remaining applications. 7752 [Steve Henson] 7753 7754 *) Bug fix for BN_div_recp() for numerators with an even number of 7755 bits. 7756 [Ulf M�ller] 7757 7758 *) More tests in bntest.c, and changed test_bn output. 7759 [Ulf M�ller] 7760 7761 *) ./config recognizes MacOS X now. 7762 [Andy Polyakov] 7763 7764 *) Bug fix for BN_div() when the first words of num and divsor are 7765 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7766 [Ulf M�ller] 7767 7768 *) Add support for various broken PKCS#8 formats, and command line 7769 options to produce them. 7770 [Steve Henson] 7771 7772 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7773 get temporary BIGNUMs from a BN_CTX. 7774 [Ulf M�ller] 7775 7776 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7777 for p == 0. 7778 [Ulf M�ller] 7779 7780 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7781 include a #define from the old name to the new. The original intent 7782 was that statically linked binaries could for example just call 7783 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7784 link with digests. This never worked becayse SSLeay_add_all_digests() 7785 and SSLeay_add_all_ciphers() were in the same source file so calling 7786 one would link with the other. They are now in separate source files. 7787 [Steve Henson] 7788 7789 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7790 [Steve Henson] 7791 7792 *) Use a less unusual form of the Miller-Rabin primality test (it used 7793 a binary algorithm for exponentiation integrated into the Miller-Rabin 7794 loop, our standard modexp algorithms are faster). 7795 [Bodo Moeller] 7796 7797 *) Support for the EBCDIC character set completed. 7798 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7799 7800 *) Source code cleanups: use const where appropriate, eliminate casts, 7801 use void * instead of char * in lhash. 7802 [Ulf M�ller] 7803 7804 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7805 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7806 this the server could overwrite ephemeral keys that the client 7807 has already seen). 7808 [Bodo Moeller] 7809 7810 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7811 using 50 iterations of the Rabin-Miller test. 7812 7813 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7814 iterations of the Rabin-Miller test as required by the appendix 7815 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7816 As BN_is_prime_fasttest includes trial division, DSA parameter 7817 generation becomes much faster. 7818 7819 This implies a change for the callback functions in DSA_is_prime 7820 and DSA_generate_parameters: The callback function is called once 7821 for each positive witness in the Rabin-Miller test, not just 7822 occasionally in the inner loop; and the parameters to the 7823 callback function now provide an iteration count for the outer 7824 loop rather than for the current invocation of the inner loop. 7825 DSA_generate_parameters additionally can call the callback 7826 function with an 'iteration count' of -1, meaning that a 7827 candidate has passed the trial division test (when q is generated 7828 from an application-provided seed, trial division is skipped). 7829 [Bodo Moeller] 7830 7831 *) New function BN_is_prime_fasttest that optionally does trial 7832 division before starting the Rabin-Miller test and has 7833 an additional BN_CTX * argument (whereas BN_is_prime always 7834 has to allocate at least one BN_CTX). 7835 'callback(1, -1, cb_arg)' is called when a number has passed the 7836 trial division stage. 7837 [Bodo Moeller] 7838 7839 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7840 as ASN1_TIME. 7841 [Steve Henson] 7842 7843 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7844 [Steve Henson] 7845 7846 *) New function BN_pseudo_rand(). 7847 [Ulf M�ller] 7848 7849 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7850 bignum version of BN_from_montgomery() with the working code from 7851 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7852 the comments. 7853 [Ulf M�ller] 7854 7855 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7856 made it impossible to use the same SSL_SESSION data structure in 7857 SSL2 clients in multiple threads. 7858 [Bodo Moeller] 7859 7860 *) The return value of RAND_load_file() no longer counts bytes obtained 7861 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7862 to seed the PRNG (previously an explicit byte count was required). 7863 [Ulf M�ller, Bodo M�ller] 7864 7865 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7866 used (char *) instead of (void *) and had casts all over the place. 7867 [Steve Henson] 7868 7869 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7870 [Ulf M�ller] 7871 7872 *) Retain source code compatibility for BN_prime_checks macro: 7873 BN_is_prime(..., BN_prime_checks, ...) now uses 7874 BN_prime_checks_for_size to determine the appropriate number of 7875 Rabin-Miller iterations. 7876 [Ulf M�ller] 7877 7878 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7879 DH_CHECK_P_NOT_SAFE_PRIME. 7880 (Check if this is true? OpenPGP calls them "strong".) 7881 [Ulf M�ller] 7882 7883 *) Merge the functionality of "dh" and "gendh" programs into a new program 7884 "dhparam". The old programs are retained for now but will handle DH keys 7885 (instead of parameters) in future. 7886 [Steve Henson] 7887 7888 *) Make the ciphers, s_server and s_client programs check the return values 7889 when a new cipher list is set. 7890 [Steve Henson] 7891 7892 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7893 ciphers. Before when the 56bit ciphers were enabled the sorting was 7894 wrong. 7895 7896 The syntax for the cipher sorting has been extended to support sorting by 7897 cipher-strength (using the strength_bits hard coded in the tables). 7898 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7899 7900 Fix a bug in the cipher-command parser: when supplying a cipher command 7901 string with an "undefined" symbol (neither command nor alphanumeric 7902 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7903 an error is flagged. 7904 7905 Due to the strength-sorting extension, the code of the 7906 ssl_create_cipher_list() function was completely rearranged. I hope that 7907 the readability was also increased :-) 7908 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7909 7910 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 7911 for the first serial number and places 2 in the serial number file. This 7912 avoids problems when the root CA is created with serial number zero and 7913 the first user certificate has the same issuer name and serial number 7914 as the root CA. 7915 [Steve Henson] 7916 7917 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 7918 the new code. Add documentation for this stuff. 7919 [Steve Henson] 7920 7921 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 7922 X509_*() to X509at_*() on the grounds that they don't handle X509 7923 structures and behave in an analagous way to the X509v3 functions: 7924 they shouldn't be called directly but wrapper functions should be used 7925 instead. 7926 7927 So we also now have some wrapper functions that call the X509at functions 7928 when passed certificate requests. (TO DO: similar things can be done with 7929 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 7930 things. Some of these need some d2i or i2d and print functionality 7931 because they handle more complex structures.) 7932 [Steve Henson] 7933 7934 *) Add missing #ifndefs that caused missing symbols when building libssl 7935 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 7936 NO_RSA in ssl/s2*.c. 7937 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 7938 7939 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 7940 has a return value which indicates the quality of the random data 7941 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 7942 error queue. New function RAND_pseudo_bytes() generates output that is 7943 guaranteed to be unique but not unpredictable. RAND_add is like 7944 RAND_seed, but takes an extra argument for an entropy estimate 7945 (RAND_seed always assumes full entropy). 7946 [Ulf M�ller] 7947 7948 *) Do more iterations of Rabin-Miller probable prime test (specifically, 7949 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 7950 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 7951 in crypto/bn/bn_prime.c for the complete table). This guarantees a 7952 false-positive rate of at most 2^-80 for random input. 7953 [Bodo Moeller] 7954 7955 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 7956 [Bodo Moeller] 7957 7958 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 7959 in the 0.9.5 release), this returns the chain 7960 from an X509_CTX structure with a dup of the stack and all 7961 the X509 reference counts upped: so the stack will exist 7962 after X509_CTX_cleanup() has been called. Modify pkcs12.c 7963 to use this. 7964 7965 Also make SSL_SESSION_print() print out the verify return 7966 code. 7967 [Steve Henson] 7968 7969 *) Add manpage for the pkcs12 command. Also change the default 7970 behaviour so MAC iteration counts are used unless the new 7971 -nomaciter option is used. This improves file security and 7972 only older versions of MSIE (4.0 for example) need it. 7973 [Steve Henson] 7974 7975 *) Honor the no-xxx Configure options when creating .DEF files. 7976 [Ulf M�ller] 7977 7978 *) Add PKCS#10 attributes to field table: challengePassword, 7979 unstructuredName and unstructuredAddress. These are taken from 7980 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 7981 international characters are used. 7982 7983 More changes to X509_ATTRIBUTE code: allow the setting of types 7984 based on strings. Remove the 'loc' parameter when adding 7985 attributes because these will be a SET OF encoding which is sorted 7986 in ASN1 order. 7987 [Steve Henson] 7988 7989 *) Initial changes to the 'req' utility to allow request generation 7990 automation. This will allow an application to just generate a template 7991 file containing all the field values and have req construct the 7992 request. 7993 7994 Initial support for X509_ATTRIBUTE handling. Stacks of these are 7995 used all over the place including certificate requests and PKCS#7 7996 structures. They are currently handled manually where necessary with 7997 some primitive wrappers for PKCS#7. The new functions behave in a 7998 manner analogous to the X509 extension functions: they allow 7999 attributes to be looked up by NID and added. 8000 8001 Later something similar to the X509V3 code would be desirable to 8002 automatically handle the encoding, decoding and printing of the 8003 more complex types. The string types like challengePassword can 8004 be handled by the string table functions. 8005 8006 Also modified the multi byte string table handling. Now there is 8007 a 'global mask' which masks out certain types. The table itself 8008 can use the flag STABLE_NO_MASK to ignore the mask setting: this 8009 is useful when for example there is only one permissible type 8010 (as in countryName) and using the mask might result in no valid 8011 types at all. 8012 [Steve Henson] 8013 8014 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 8015 SSL_get_peer_finished to allow applications to obtain the latest 8016 Finished messages sent to the peer or expected from the peer, 8017 respectively. (SSL_get_peer_finished is usually the Finished message 8018 actually received from the peer, otherwise the protocol will be aborted.) 8019 8020 As the Finished message are message digests of the complete handshake 8021 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 8022 be used for external authentication procedures when the authentication 8023 provided by SSL/TLS is not desired or is not enough. 8024 [Bodo Moeller] 8025 8026 *) Enhanced support for Alpha Linux is added. Now ./config checks if 8027 the host supports BWX extension and if Compaq C is present on the 8028 $PATH. Just exploiting of the BWX extension results in 20-30% 8029 performance kick for some algorithms, e.g. DES and RC4 to mention 8030 a couple. Compaq C in turn generates ~20% faster code for MD5 and 8031 SHA1. 8032 [Andy Polyakov] 8033 8034 *) Add support for MS "fast SGC". This is arguably a violation of the 8035 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 8036 weak crypto and after checking the certificate is SGC a second one 8037 with strong crypto. MS SGC stops the first handshake after receiving 8038 the server certificate message and sends a second client hello. Since 8039 a server will typically do all the time consuming operations before 8040 expecting any further messages from the client (server key exchange 8041 is the most expensive) there is little difference between the two. 8042 8043 To get OpenSSL to support MS SGC we have to permit a second client 8044 hello message after we have sent server done. In addition we have to 8045 reset the MAC if we do get this second client hello. 8046 [Steve Henson] 8047 8048 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 8049 if a DER encoded private key is RSA or DSA traditional format. Changed 8050 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 8051 format DER encoded private key. Newer code should use PKCS#8 format which 8052 has the key type encoded in the ASN1 structure. Added DER private key 8053 support to pkcs8 application. 8054 [Steve Henson] 8055 8056 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 8057 ciphersuites has been selected (as required by the SSL 3/TLS 1 8058 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 8059 is set, we interpret this as a request to violate the specification 8060 (the worst that can happen is a handshake failure, and 'correct' 8061 behaviour would result in a handshake failure anyway). 8062 [Bodo Moeller] 8063 8064 *) In SSL_CTX_add_session, take into account that there might be multiple 8065 SSL_SESSION structures with the same session ID (e.g. when two threads 8066 concurrently obtain them from an external cache). 8067 The internal cache can handle only one SSL_SESSION with a given ID, 8068 so if there's a conflict, we now throw out the old one to achieve 8069 consistency. 8070 [Bodo Moeller] 8071 8072 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8073 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8074 some routines that use cipher OIDs: some ciphers do not have OIDs 8075 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8076 example. 8077 [Steve Henson] 8078 8079 *) Simplify the trust setting structure and code. Now we just have 8080 two sequences of OIDs for trusted and rejected settings. These will 8081 typically have values the same as the extended key usage extension 8082 and any application specific purposes. 8083 8084 The trust checking code now has a default behaviour: it will just 8085 check for an object with the same NID as the passed id. Functions can 8086 be provided to override either the default behaviour or the behaviour 8087 for a given id. SSL client, server and email already have functions 8088 in place for compatibility: they check the NID and also return "trusted" 8089 if the certificate is self signed. 8090 [Steve Henson] 8091 8092 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8093 traditional format into an EVP_PKEY structure. 8094 [Steve Henson] 8095 8096 *) Add a password callback function PEM_cb() which either prompts for 8097 a password if usr_data is NULL or otherwise assumes it is a null 8098 terminated password. Allow passwords to be passed on command line 8099 environment or config files in a few more utilities. 8100 [Steve Henson] 8101 8102 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8103 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8104 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8105 Update documentation. 8106 [Steve Henson] 8107 8108 *) Support for ASN1 "NULL" type. This could be handled before by using 8109 ASN1_TYPE but there wasn't any function that would try to read a NULL 8110 and produce an error if it couldn't. For compatibility we also have 8111 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8112 don't allocate anything because they don't need to. 8113 [Steve Henson] 8114 8115 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8116 for details. 8117 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8118 8119 *) Rebuild of the memory allocation routines used by OpenSSL code and 8120 possibly others as well. The purpose is to make an interface that 8121 provide hooks so anyone can build a separate set of allocation and 8122 deallocation routines to be used by OpenSSL, for example memory 8123 pool implementations, or something else, which was previously hard 8124 since Malloc(), Realloc() and Free() were defined as macros having 8125 the values malloc, realloc and free, respectively (except for Win32 8126 compilations). The same is provided for memory debugging code. 8127 OpenSSL already comes with functionality to find memory leaks, but 8128 this gives people a chance to debug other memory problems. 8129 8130 With these changes, a new set of functions and macros have appeared: 8131 8132 CRYPTO_set_mem_debug_functions() [F] 8133 CRYPTO_get_mem_debug_functions() [F] 8134 CRYPTO_dbg_set_options() [F] 8135 CRYPTO_dbg_get_options() [F] 8136 CRYPTO_malloc_debug_init() [M] 8137 8138 The memory debug functions are NULL by default, unless the library 8139 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8140 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8141 gives the standard debugging functions that come with OpenSSL) or 8142 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8143 provided by the library user) must be used. When the standard 8144 debugging functions are used, CRYPTO_dbg_set_options can be used to 8145 request additional information: 8146 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8147 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8148 8149 Also, things like CRYPTO_set_mem_functions will always give the 8150 expected result (the new set of functions is used for allocation 8151 and deallocation) at all times, regardless of platform and compiler 8152 options. 8153 8154 To finish it up, some functions that were never use in any other 8155 way than through macros have a new API and new semantic: 8156 8157 CRYPTO_dbg_malloc() 8158 CRYPTO_dbg_realloc() 8159 CRYPTO_dbg_free() 8160 8161 All macros of value have retained their old syntax. 8162 [Richard Levitte and Bodo Moeller] 8163 8164 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8165 ordering of SMIMECapabilities wasn't in "strength order" and there 8166 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8167 algorithm. 8168 [Steve Henson] 8169 8170 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8171 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8172 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8173 8174 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8175 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8176 functionality to handle multipart/signed properly) and a utility 8177 called 'smime' to call all this stuff. This is based on code I 8178 originally wrote for Celo who have kindly allowed it to be 8179 included in OpenSSL. 8180 [Steve Henson] 8181 8182 *) Add variants des_set_key_checked and des_set_key_unchecked of 8183 des_set_key (aka des_key_sched). Global variable des_check_key 8184 decides which of these is called by des_set_key; this way 8185 des_check_key behaves as it always did, but applications and 8186 the library itself, which was buggy for des_check_key == 1, 8187 have a cleaner way to pick the version they need. 8188 [Bodo Moeller] 8189 8190 *) New function PKCS12_newpass() which changes the password of a 8191 PKCS12 structure. 8192 [Steve Henson] 8193 8194 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8195 dynamic mix. In both cases the ids can be used as an index into the 8196 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8197 functions so they accept a list of the field values and the 8198 application doesn't need to directly manipulate the X509_TRUST 8199 structure. 8200 [Steve Henson] 8201 8202 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8203 need initialising. 8204 [Steve Henson] 8205 8206 *) Modify the way the V3 extension code looks up extensions. This now 8207 works in a similar way to the object code: we have some "standard" 8208 extensions in a static table which is searched with OBJ_bsearch() 8209 and the application can add dynamic ones if needed. The file 8210 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8211 updated whenever a new extension is added to the core code and kept 8212 in ext_nid order. There is a simple program 'tabtest.c' which checks 8213 this. New extensions are not added too often so this file can readily 8214 be maintained manually. 8215 8216 There are two big advantages in doing things this way. The extensions 8217 can be looked up immediately and no longer need to be "added" using 8218 X509V3_add_standard_extensions(): this function now does nothing. 8219 [Side note: I get *lots* of email saying the extension code doesn't 8220 work because people forget to call this function] 8221 Also no dynamic allocation is done unless new extensions are added: 8222 so if we don't add custom extensions there is no need to call 8223 X509V3_EXT_cleanup(). 8224 [Steve Henson] 8225 8226 *) Modify enc utility's salting as follows: make salting the default. Add a 8227 magic header, so unsalted files fail gracefully instead of just decrypting 8228 to garbage. This is because not salting is a big security hole, so people 8229 should be discouraged from doing it. 8230 [Ben Laurie] 8231 8232 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8233 digest to be passed on the command line but it only used this 8234 parameter when signing a certificate. Modified so all relevant 8235 operations are affected by the digest parameter including the 8236 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8237 DSA key was used because it didn't fix the digest. 8238 [Steve Henson] 8239 8240 *) Initial certificate chain verify code. Currently tests the untrusted 8241 certificates for consistency with the verify purpose (which is set 8242 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8243 8244 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8245 this is because it will reject chains with invalid extensions whereas 8246 every previous version of OpenSSL and SSLeay made no checks at all. 8247 8248 Trust code: checks the root CA for the relevant trust settings. Trust 8249 settings have an initial value consistent with the verify purpose: e.g. 8250 if the verify purpose is for SSL client use it expects the CA to be 8251 trusted for SSL client use. However the default value can be changed to 8252 permit custom trust settings: one example of this would be to only trust 8253 certificates from a specific "secure" set of CAs. 8254 8255 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8256 which should be used for version portability: especially since the 8257 verify structure is likely to change more often now. 8258 8259 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8260 to set them. If not set then assume SSL clients will verify SSL servers 8261 and vice versa. 8262 8263 Two new options to the verify program: -untrusted allows a set of 8264 untrusted certificates to be passed in and -purpose which sets the 8265 intended purpose of the certificate. If a purpose is set then the 8266 new chain verify code is used to check extension consistency. 8267 [Steve Henson] 8268 8269 *) Support for the authority information access extension. 8270 [Steve Henson] 8271 8272 *) Modify RSA and DSA PEM read routines to transparently handle 8273 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8274 public keys in a format compatible with certificate 8275 SubjectPublicKeyInfo structures. Unfortunately there were already 8276 functions called *_PublicKey_* which used various odd formats so 8277 these are retained for compatibility: however the DSA variants were 8278 never in a public release so they have been deleted. Changed dsa/rsa 8279 utilities to handle the new format: note no releases ever handled public 8280 keys so we should be OK. 8281 8282 The primary motivation for this change is to avoid the same fiasco 8283 that dogs private keys: there are several incompatible private key 8284 formats some of which are standard and some OpenSSL specific and 8285 require various evil hacks to allow partial transparent handling and 8286 even then it doesn't work with DER formats. Given the option anything 8287 other than PKCS#8 should be dumped: but the other formats have to 8288 stay in the name of compatibility. 8289 8290 With public keys and the benefit of hindsight one standard format 8291 is used which works with EVP_PKEY, RSA or DSA structures: though 8292 it clearly returns an error if you try to read the wrong kind of key. 8293 8294 Added a -pubkey option to the 'x509' utility to output the public key. 8295 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8296 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8297 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8298 that do the same as the EVP_PKEY_assign_*() except they up the 8299 reference count of the added key (they don't "swallow" the 8300 supplied key). 8301 [Steve Henson] 8302 8303 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8304 CRLs would fail if the file contained no certificates or no CRLs: 8305 added a new function to read in both types and return the number 8306 read: this means that if none are read it will be an error. The 8307 DER versions of the certificate and CRL reader would always fail 8308 because it isn't possible to mix certificates and CRLs in DER format 8309 without choking one or the other routine. Changed this to just read 8310 a certificate: this is the best we can do. Also modified the code 8311 in apps/verify.c to take notice of return codes: it was previously 8312 attempting to read in certificates from NULL pointers and ignoring 8313 any errors: this is one reason why the cert and CRL reader seemed 8314 to work. It doesn't check return codes from the default certificate 8315 routines: these may well fail if the certificates aren't installed. 8316 [Steve Henson] 8317 8318 *) Code to support otherName option in GeneralName. 8319 [Steve Henson] 8320 8321 *) First update to verify code. Change the verify utility 8322 so it warns if it is passed a self signed certificate: 8323 for consistency with the normal behaviour. X509_verify 8324 has been modified to it will now verify a self signed 8325 certificate if *exactly* the same certificate appears 8326 in the store: it was previously impossible to trust a 8327 single self signed certificate. This means that: 8328 openssl verify ss.pem 8329 now gives a warning about a self signed certificate but 8330 openssl verify -CAfile ss.pem ss.pem 8331 is OK. 8332 [Steve Henson] 8333 8334 *) For servers, store verify_result in SSL_SESSION data structure 8335 (and add it to external session representation). 8336 This is needed when client certificate verifications fails, 8337 but an application-provided verification callback (set by 8338 SSL_CTX_set_cert_verify_callback) allows accepting the session 8339 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8340 but returns 1): When the session is reused, we have to set 8341 ssl->verify_result to the appropriate error code to avoid 8342 security holes. 8343 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8344 8345 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8346 case in PKCS7_dataInit() where the signed PKCS7 structure 8347 didn't contain any existing data because it was being created. 8348 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8349 8350 *) Add a salt to the key derivation routines in enc.c. This 8351 forms the first 8 bytes of the encrypted file. Also add a 8352 -S option to allow a salt to be input on the command line. 8353 [Steve Henson] 8354 8355 *) New function X509_cmp(). Oddly enough there wasn't a function 8356 to compare two certificates. We do this by working out the SHA1 8357 hash and comparing that. X509_cmp() will be needed by the trust 8358 code. 8359 [Steve Henson] 8360 8361 *) SSL_get1_session() is like SSL_get_session(), but increments 8362 the reference count in the SSL_SESSION returned. 8363 [Geoff Thorpe <geoff@eu.c2.net>] 8364 8365 *) Fix for 'req': it was adding a null to request attributes. 8366 Also change the X509_LOOKUP and X509_INFO code to handle 8367 certificate auxiliary information. 8368 [Steve Henson] 8369 8370 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8371 the 'enc' command. 8372 [Steve Henson] 8373 8374 *) Add the possibility to add extra information to the memory leak 8375 detecting output, to form tracebacks, showing from where each 8376 allocation was originated: CRYPTO_push_info("constant string") adds 8377 the string plus current file name and line number to a per-thread 8378 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8379 is like calling CYRPTO_pop_info() until the stack is empty. 8380 Also updated memory leak detection code to be multi-thread-safe. 8381 [Richard Levitte] 8382 8383 *) Add options -text and -noout to pkcs7 utility and delete the 8384 encryption options which never did anything. Update docs. 8385 [Steve Henson] 8386 8387 *) Add options to some of the utilities to allow the pass phrase 8388 to be included on either the command line (not recommended on 8389 OSes like Unix) or read from the environment. Update the 8390 manpages and fix a few bugs. 8391 [Steve Henson] 8392 8393 *) Add a few manpages for some of the openssl commands. 8394 [Steve Henson] 8395 8396 *) Fix the -revoke option in ca. It was freeing up memory twice, 8397 leaking and not finding already revoked certificates. 8398 [Steve Henson] 8399 8400 *) Extensive changes to support certificate auxiliary information. 8401 This involves the use of X509_CERT_AUX structure and X509_AUX 8402 functions. An X509_AUX function such as PEM_read_X509_AUX() 8403 can still read in a certificate file in the usual way but it 8404 will also read in any additional "auxiliary information". By 8405 doing things this way a fair degree of compatibility can be 8406 retained: existing certificates can have this information added 8407 using the new 'x509' options. 8408 8409 Current auxiliary information includes an "alias" and some trust 8410 settings. The trust settings will ultimately be used in enhanced 8411 certificate chain verification routines: currently a certificate 8412 can only be trusted if it is self signed and then it is trusted 8413 for all purposes. 8414 [Steve Henson] 8415 8416 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8417 The problem was that one of the replacement routines had not been working 8418 since SSLeay releases. For now the offending routine has been replaced 8419 with non-optimised assembler. Even so, this now gives around 95% 8420 performance improvement for 1024 bit RSA signs. 8421 [Mark Cox] 8422 8423 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8424 handling. Most clients have the effective key size in bits equal to 8425 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8426 A few however don't do this and instead use the size of the decrypted key 8427 to determine the RC2 key length and the AlgorithmIdentifier to determine 8428 the effective key length. In this case the effective key length can still 8429 be 40 bits but the key length can be 168 bits for example. This is fixed 8430 by manually forcing an RC2 key into the EVP_PKEY structure because the 8431 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8432 the key length and effective key length are equal. 8433 [Steve Henson] 8434 8435 *) Add a bunch of functions that should simplify the creation of 8436 X509_NAME structures. Now you should be able to do: 8437 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8438 and have it automatically work out the correct field type and fill in 8439 the structures. The more adventurous can try: 8440 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8441 and it will (hopefully) work out the correct multibyte encoding. 8442 [Steve Henson] 8443 8444 *) Change the 'req' utility to use the new field handling and multibyte 8445 copy routines. Before the DN field creation was handled in an ad hoc 8446 way in req, ca, and x509 which was rather broken and didn't support 8447 BMPStrings or UTF8Strings. Since some software doesn't implement 8448 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8449 using the dirstring_type option. See the new comment in the default 8450 openssl.cnf for more info. 8451 [Steve Henson] 8452 8453 *) Make crypto/rand/md_rand.c more robust: 8454 - Assure unique random numbers after fork(). 8455 - Make sure that concurrent threads access the global counter and 8456 md serializably so that we never lose entropy in them 8457 or use exactly the same state in multiple threads. 8458 Access to the large state is not always serializable because 8459 the additional locking could be a performance killer, and 8460 md should be large enough anyway. 8461 [Bodo Moeller] 8462 8463 *) New file apps/app_rand.c with commonly needed functionality 8464 for handling the random seed file. 8465 8466 Use the random seed file in some applications that previously did not: 8467 ca, 8468 dsaparam -genkey (which also ignored its '-rand' option), 8469 s_client, 8470 s_server, 8471 x509 (when signing). 8472 Except on systems with /dev/urandom, it is crucial to have a random 8473 seed file at least for key creation, DSA signing, and for DH exchanges; 8474 for RSA signatures we could do without one. 8475 8476 gendh and gendsa (unlike genrsa) used to read only the first byte 8477 of each file listed in the '-rand' option. The function as previously 8478 found in genrsa is now in app_rand.c and is used by all programs 8479 that support '-rand'. 8480 [Bodo Moeller] 8481 8482 *) In RAND_write_file, use mode 0600 for creating files; 8483 don't just chmod when it may be too late. 8484 [Bodo Moeller] 8485 8486 *) Report an error from X509_STORE_load_locations 8487 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8488 [Bill Perry] 8489 8490 *) New function ASN1_mbstring_copy() this copies a string in either 8491 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8492 into an ASN1_STRING type. A mask of permissible types is passed 8493 and it chooses the "minimal" type to use or an error if not type 8494 is suitable. 8495 [Steve Henson] 8496 8497 *) Add function equivalents to the various macros in asn1.h. The old 8498 macros are retained with an M_ prefix. Code inside the library can 8499 use the M_ macros. External code (including the openssl utility) 8500 should *NOT* in order to be "shared library friendly". 8501 [Steve Henson] 8502 8503 *) Add various functions that can check a certificate's extensions 8504 to see if it usable for various purposes such as SSL client, 8505 server or S/MIME and CAs of these types. This is currently 8506 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8507 verification. Also added a -purpose flag to x509 utility to 8508 print out all the purposes. 8509 [Steve Henson] 8510 8511 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8512 functions. 8513 [Steve Henson] 8514 8515 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8516 for, obtain and decode and extension and obtain its critical flag. 8517 This allows all the necessary extension code to be handled in a 8518 single function call. 8519 [Steve Henson] 8520 8521 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8522 platforms. See crypto/rc4/rc4_enc.c for further details. 8523 [Andy Polyakov] 8524 8525 *) New -noout option to asn1parse. This causes no output to be produced 8526 its main use is when combined with -strparse and -out to extract data 8527 from a file (which may not be in ASN.1 format). 8528 [Steve Henson] 8529 8530 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8531 when producing the local key id. 8532 [Richard Levitte <levitte@stacken.kth.se>] 8533 8534 *) New option -dhparam in s_server. This allows a DH parameter file to be 8535 stated explicitly. If it is not stated then it tries the first server 8536 certificate file. The previous behaviour hard coded the filename 8537 "server.pem". 8538 [Steve Henson] 8539 8540 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8541 a public key to be input or output. For example: 8542 openssl rsa -in key.pem -pubout -out pubkey.pem 8543 Also added necessary DSA public key functions to handle this. 8544 [Steve Henson] 8545 8546 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8547 in the message. This was handled by allowing 8548 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8549 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8550 8551 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8552 to the end of the strings whereas this didn't. This would cause problems 8553 if strings read with d2i_ASN1_bytes() were later modified. 8554 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8555 8556 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8557 data and it contains EOF it will end up returning an error. This is 8558 caused by input 46 bytes long. The cause is due to the way base64 8559 BIOs find the start of base64 encoded data. They do this by trying a 8560 trial decode on each line until they find one that works. When they 8561 do a flag is set and it starts again knowing it can pass all the 8562 data directly through the decoder. Unfortunately it doesn't reset 8563 the context it uses. This means that if EOF is reached an attempt 8564 is made to pass two EOFs through the context and this causes the 8565 resulting error. This can also cause other problems as well. As is 8566 usual with these problems it takes *ages* to find and the fix is 8567 trivial: move one line. 8568 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8569 8570 *) Ugly workaround to get s_client and s_server working under Windows. The 8571 old code wouldn't work because it needed to select() on sockets and the 8572 tty (for keypresses and to see if data could be written). Win32 only 8573 supports select() on sockets so we select() with a 1s timeout on the 8574 sockets and then see if any characters are waiting to be read, if none 8575 are present then we retry, we also assume we can always write data to 8576 the tty. This isn't nice because the code then blocks until we've 8577 received a complete line of data and it is effectively polling the 8578 keyboard at 1s intervals: however it's quite a bit better than not 8579 working at all :-) A dedicated Windows application might handle this 8580 with an event loop for example. 8581 [Steve Henson] 8582 8583 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8584 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8585 will be called when RSA_sign() and RSA_verify() are used. This is useful 8586 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8587 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8588 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8589 This necessitated the support of an extra signature type NID_md5_sha1 8590 for SSL signatures and modifications to the SSL library to use it instead 8591 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8592 [Steve Henson] 8593 8594 *) Add new -verify -CAfile and -CApath options to the crl program, these 8595 will lookup a CRL issuers certificate and verify the signature in a 8596 similar way to the verify program. Tidy up the crl program so it 8597 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8598 less strict. It will now permit CRL extensions even if it is not 8599 a V2 CRL: this will allow it to tolerate some broken CRLs. 8600 [Steve Henson] 8601 8602 *) Initialize all non-automatic variables each time one of the openssl 8603 sub-programs is started (this is necessary as they may be started 8604 multiple times from the "OpenSSL>" prompt). 8605 [Lennart Bang, Bodo Moeller] 8606 8607 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8608 removing all other RSA functionality (this is what NO_RSA does). This 8609 is so (for example) those in the US can disable those operations covered 8610 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8611 key generation. 8612 [Steve Henson] 8613 8614 *) Non-copying interface to BIO pairs. 8615 (still largely untested) 8616 [Bodo Moeller] 8617 8618 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8619 ASCII string. This was handled independently in various places before. 8620 [Steve Henson] 8621 8622 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8623 UTF8 strings a character at a time. 8624 [Steve Henson] 8625 8626 *) Use client_version from client hello to select the protocol 8627 (s23_srvr.c) and for RSA client key exchange verification 8628 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8629 [Bodo Moeller] 8630 8631 *) Add various utility functions to handle SPKACs, these were previously 8632 handled by poking round in the structure internals. Added new function 8633 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8634 print, verify and generate SPKACs. Based on an original idea from 8635 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8636 [Steve Henson] 8637 8638 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8639 [Andy Polyakov] 8640 8641 *) Allow the config file extension section to be overwritten on the 8642 command line. Based on an original idea from Massimiliano Pala 8643 <madwolf@comune.modena.it>. The new option is called -extensions 8644 and can be applied to ca, req and x509. Also -reqexts to override 8645 the request extensions in req and -crlexts to override the crl extensions 8646 in ca. 8647 [Steve Henson] 8648 8649 *) Add new feature to the SPKAC handling in ca. Now you can include 8650 the same field multiple times by preceding it by "XXXX." for example: 8651 1.OU="Unit name 1" 8652 2.OU="Unit name 2" 8653 this is the same syntax as used in the req config file. 8654 [Steve Henson] 8655 8656 *) Allow certificate extensions to be added to certificate requests. These 8657 are specified in a 'req_extensions' option of the req section of the 8658 config file. They can be printed out with the -text option to req but 8659 are otherwise ignored at present. 8660 [Steve Henson] 8661 8662 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8663 data read consists of only the final block it would not decrypted because 8664 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8665 A misplaced 'break' also meant the decrypted final block might not be 8666 copied until the next read. 8667 [Steve Henson] 8668 8669 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8670 a few extra parameters to the DH structure: these will be useful if 8671 for example we want the value of 'q' or implement X9.42 DH. 8672 [Steve Henson] 8673 8674 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8675 provides hooks that allow the default DSA functions or functions on a 8676 "per key" basis to be replaced. This allows hardware acceleration and 8677 hardware key storage to be handled without major modification to the 8678 library. Also added low level modexp hooks and CRYPTO_EX structure and 8679 associated functions. 8680 [Steve Henson] 8681 8682 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8683 as "read only": it can't be written to and the buffer it points to will 8684 not be freed. Reading from a read only BIO is much more efficient than 8685 a normal memory BIO. This was added because there are several times when 8686 an area of memory needs to be read from a BIO. The previous method was 8687 to create a memory BIO and write the data to it, this results in two 8688 copies of the data and an O(n^2) reading algorithm. There is a new 8689 function BIO_new_mem_buf() which creates a read only memory BIO from 8690 an area of memory. Also modified the PKCS#7 routines to use read only 8691 memory BIOs. 8692 [Steve Henson] 8693 8694 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8695 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8696 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8697 but a retry condition occured while trying to read the rest. 8698 [Bodo Moeller] 8699 8700 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8701 NID_pkcs7_encrypted by default: this was wrong since this should almost 8702 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8703 the encrypted data type: this is a more sensible place to put it and it 8704 allows the PKCS#12 code to be tidied up that duplicated this 8705 functionality. 8706 [Steve Henson] 8707 8708 *) Changed obj_dat.pl script so it takes its input and output files on 8709 the command line. This should avoid shell escape redirection problems 8710 under Win32. 8711 [Steve Henson] 8712 8713 *) Initial support for certificate extension requests, these are included 8714 in things like Xenroll certificate requests. Included functions to allow 8715 extensions to be obtained and added. 8716 [Steve Henson] 8717 8718 *) -crlf option to s_client and s_server for sending newlines as 8719 CRLF (as required by many protocols). 8720 [Bodo Moeller] 8721 8722 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8723 8724 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8725 [Ralf S. Engelschall] 8726 8727 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8728 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8729 8730 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8731 program. 8732 [Steve Henson] 8733 8734 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8735 DH parameters/keys (q is lost during that conversion, but the resulting 8736 DH parameters contain its length). 8737 8738 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8739 much faster than DH_generate_parameters (which creates parameters 8740 where p = 2*q + 1), and also the smaller q makes DH computations 8741 much more efficient (160-bit exponentiation instead of 1024-bit 8742 exponentiation); so this provides a convenient way to support DHE 8743 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8744 utter importance to use 8745 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8746 or 8747 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8748 when such DH parameters are used, because otherwise small subgroup 8749 attacks may become possible! 8750 [Bodo Moeller] 8751 8752 *) Avoid memory leak in i2d_DHparams. 8753 [Bodo Moeller] 8754 8755 *) Allow the -k option to be used more than once in the enc program: 8756 this allows the same encrypted message to be read by multiple recipients. 8757 [Steve Henson] 8758 8759 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8760 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8761 it will always use the numerical form of the OID, even if it has a short 8762 or long name. 8763 [Steve Henson] 8764 8765 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8766 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8767 otherwise bn_mod_exp was called. In the case of hardware keys for example 8768 no private key components need be present and it might store extra data 8769 in the RSA structure, which cannot be accessed from bn_mod_exp. 8770 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8771 private key operations. 8772 [Steve Henson] 8773 8774 *) Added support for SPARC Linux. 8775 [Andy Polyakov] 8776 8777 *) pem_password_cb function type incompatibly changed from 8778 typedef int pem_password_cb(char *buf, int size, int rwflag); 8779 to 8780 ....(char *buf, int size, int rwflag, void *userdata); 8781 so that applications can pass data to their callbacks: 8782 The PEM[_ASN1]_{read,write}... functions and macros now take an 8783 additional void * argument, which is just handed through whenever 8784 the password callback is called. 8785 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8786 8787 New function SSL_CTX_set_default_passwd_cb_userdata. 8788 8789 Compatibility note: As many C implementations push function arguments 8790 onto the stack in reverse order, the new library version is likely to 8791 interoperate with programs that have been compiled with the old 8792 pem_password_cb definition (PEM_whatever takes some data that 8793 happens to be on the stack as its last argument, and the callback 8794 just ignores this garbage); but there is no guarantee whatsoever that 8795 this will work. 8796 8797 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8798 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8799 problems not only on Windows, but also on some Unix platforms. 8800 To avoid problematic command lines, these definitions are now in an 8801 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8802 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8803 [Bodo Moeller] 8804 8805 *) MIPS III/IV assembler module is reimplemented. 8806 [Andy Polyakov] 8807 8808 *) More DES library cleanups: remove references to srand/rand and 8809 delete an unused file. 8810 [Ulf M�ller] 8811 8812 *) Add support for the the free Netwide assembler (NASM) under Win32, 8813 since not many people have MASM (ml) and it can be hard to obtain. 8814 This is currently experimental but it seems to work OK and pass all 8815 the tests. Check out INSTALL.W32 for info. 8816 [Steve Henson] 8817 8818 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8819 without temporary keys kept an extra copy of the server key, 8820 and connections with temporary keys did not free everything in case 8821 of an error. 8822 [Bodo Moeller] 8823 8824 *) New function RSA_check_key and new openssl rsa option -check 8825 for verifying the consistency of RSA keys. 8826 [Ulf Moeller, Bodo Moeller] 8827 8828 *) Various changes to make Win32 compile work: 8829 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8830 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8831 comparison" warnings. 8832 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8833 [Steve Henson] 8834 8835 *) Add a debugging option to PKCS#5 v2 key generation function: when 8836 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8837 derived keys are printed to stderr. 8838 [Steve Henson] 8839 8840 *) Copy the flags in ASN1_STRING_dup(). 8841 [Roman E. Pavlov <pre@mo.msk.ru>] 8842 8843 *) The x509 application mishandled signing requests containing DSA 8844 keys when the signing key was also DSA and the parameters didn't match. 8845 8846 It was supposed to omit the parameters when they matched the signing key: 8847 the verifying software was then supposed to automatically use the CA's 8848 parameters if they were absent from the end user certificate. 8849 8850 Omitting parameters is no longer recommended. The test was also 8851 the wrong way round! This was probably due to unusual behaviour in 8852 EVP_cmp_parameters() which returns 1 if the parameters match. 8853 This meant that parameters were omitted when they *didn't* match and 8854 the certificate was useless. Certificates signed with 'ca' didn't have 8855 this bug. 8856 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8857 8858 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8859 The interface is as follows: 8860 Applications can use 8861 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8862 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8863 "off" is now the default. 8864 The library internally uses 8865 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8866 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8867 to disable memory-checking temporarily. 8868 8869 Some inconsistent states that previously were possible (and were 8870 even the default) are now avoided. 8871 8872 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8873 with each memory chunk allocated; this is occasionally more helpful 8874 than just having a counter. 8875 8876 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8877 8878 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8879 extensions. 8880 [Bodo Moeller] 8881 8882 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8883 which largely parallels "options", but is for changing API behaviour, 8884 whereas "options" are about protocol behaviour. 8885 Initial "mode" flags are: 8886 8887 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8888 a single record has been written. 8889 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8890 retries use the same buffer location. 8891 (But all of the contents must be 8892 copied!) 8893 [Bodo Moeller] 8894 8895 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8896 worked. 8897 8898 *) Fix problems with no-hmac etc. 8899 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8900 8901 *) New functions RSA_get_default_method(), RSA_set_method() and 8902 RSA_get_method(). These allows replacement of RSA_METHODs without having 8903 to mess around with the internals of an RSA structure. 8904 [Steve Henson] 8905 8906 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8907 Also really enable memory leak checks in openssl.c and in some 8908 test programs. 8909 [Chad C. Mulligan, Bodo Moeller] 8910 8911 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 8912 up the length of negative integers. This has now been simplified to just 8913 store the length when it is first determined and use it later, rather 8914 than trying to keep track of where data is copied and updating it to 8915 point to the end. 8916 [Steve Henson, reported by Brien Wheeler 8917 <bwheeler@authentica-security.com>] 8918 8919 *) Add a new function PKCS7_signatureVerify. This allows the verification 8920 of a PKCS#7 signature but with the signing certificate passed to the 8921 function itself. This contrasts with PKCS7_dataVerify which assumes the 8922 certificate is present in the PKCS#7 structure. This isn't always the 8923 case: certificates can be omitted from a PKCS#7 structure and be 8924 distributed by "out of band" means (such as a certificate database). 8925 [Steve Henson] 8926 8927 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 8928 function prototypes in pem.h, also change util/mkdef.pl to add the 8929 necessary function names. 8930 [Steve Henson] 8931 8932 *) mk1mf.pl (used by Windows builds) did not properly read the 8933 options set by Configure in the top level Makefile, and Configure 8934 was not even able to write more than one option correctly. 8935 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 8936 [Bodo Moeller] 8937 8938 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 8939 file to be loaded from a BIO or FILE pointer. The BIO version will 8940 for example allow memory BIOs to contain config info. 8941 [Steve Henson] 8942 8943 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 8944 Whoever hopes to achieve shared-library compatibility across versions 8945 must use this, not the compile-time macro. 8946 (Exercise 0.9.4: Which is the minimum library version required by 8947 such programs?) 8948 Note: All this applies only to multi-threaded programs, others don't 8949 need locks. 8950 [Bodo Moeller] 8951 8952 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 8953 through a BIO pair triggered the default case, i.e. 8954 SSLerr(...,SSL_R_UNKNOWN_STATE). 8955 [Bodo Moeller] 8956 8957 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 8958 can use the SSL library even if none of the specific BIOs is 8959 appropriate. 8960 [Bodo Moeller] 8961 8962 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 8963 for the encoded length. 8964 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 8965 8966 *) Add initial documentation of the X509V3 functions. 8967 [Steve Henson] 8968 8969 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 8970 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 8971 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 8972 secure PKCS#8 private key format with a high iteration count. 8973 [Steve Henson] 8974 8975 *) Fix determination of Perl interpreter: A perl or perl5 8976 _directory_ in $PATH was also accepted as the interpreter. 8977 [Ralf S. Engelschall] 8978 8979 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 8980 wrong with it but it was very old and did things like calling 8981 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 8982 unusual formatting. 8983 [Steve Henson] 8984 8985 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 8986 to use the new extension code. 8987 [Steve Henson] 8988 8989 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 8990 with macros. This should make it easier to change their form, add extra 8991 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 8992 constant. 8993 [Steve Henson] 8994 8995 *) Add to configuration table a new entry that can specify an alternative 8996 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 8997 according to Mark Crispin <MRC@Panda.COM>. 8998 [Bodo Moeller] 8999 9000#if 0 9001 *) DES CBC did not update the IV. Weird. 9002 [Ben Laurie] 9003#else 9004 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 9005 Changing the behaviour of the former might break existing programs -- 9006 where IV updating is needed, des_ncbc_encrypt can be used. 9007#endif 9008 9009 *) When bntest is run from "make test" it drives bc to check its 9010 calculations, as well as internally checking them. If an internal check 9011 fails, it needs to cause bc to give a non-zero result or make test carries 9012 on without noticing the failure. Fixed. 9013 [Ben Laurie] 9014 9015 *) DES library cleanups. 9016 [Ulf M�ller] 9017 9018 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 9019 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 9020 ciphers. NOTE: although the key derivation function has been verified 9021 against some published test vectors it has not been extensively tested 9022 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 9023 of v2.0. 9024 [Steve Henson] 9025 9026 *) Instead of "mkdir -p", which is not fully portable, use new 9027 Perl script "util/mkdir-p.pl". 9028 [Bodo Moeller] 9029 9030 *) Rewrite the way password based encryption (PBE) is handled. It used to 9031 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 9032 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 9033 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 9034 the 'parameter' field of the AlgorithmIdentifier is passed to the 9035 underlying key generation function so it must do its own ASN1 parsing. 9036 This has also changed the EVP_PBE_CipherInit() function which now has a 9037 'parameter' argument instead of literal salt and iteration count values 9038 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 9039 [Steve Henson] 9040 9041 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 9042 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 9043 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 9044 KEY" because this clashed with PKCS#8 unencrypted string. Since this 9045 value was just used as a "magic string" and not used directly its 9046 value doesn't matter. 9047 [Steve Henson] 9048 9049 *) Introduce some semblance of const correctness to BN. Shame C doesn't 9050 support mutable. 9051 [Ben Laurie] 9052 9053 *) "linux-sparc64" configuration (ultrapenguin). 9054 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 9055 "linux-sparc" configuration. 9056 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 9057 9058 *) config now generates no-xxx options for missing ciphers. 9059 [Ulf M�ller] 9060 9061 *) Support the EBCDIC character set (work in progress). 9062 File ebcdic.c not yet included because it has a different license. 9063 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9064 9065 *) Support BS2000/OSD-POSIX. 9066 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9067 9068 *) Make callbacks for key generation use void * instead of char *. 9069 [Ben Laurie] 9070 9071 *) Make S/MIME samples compile (not yet tested). 9072 [Ben Laurie] 9073 9074 *) Additional typesafe stacks. 9075 [Ben Laurie] 9076 9077 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9078 [Bodo Moeller] 9079 9080 9081 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9082 9083 *) New configuration variant "sco5-gcc". 9084 9085 *) Updated some demos. 9086 [Sean O Riordain, Wade Scholine] 9087 9088 *) Add missing BIO_free at exit of pkcs12 application. 9089 [Wu Zhigang] 9090 9091 *) Fix memory leak in conf.c. 9092 [Steve Henson] 9093 9094 *) Updates for Win32 to assembler version of MD5. 9095 [Steve Henson] 9096 9097 *) Set #! path to perl in apps/der_chop to where we found it 9098 instead of using a fixed path. 9099 [Bodo Moeller] 9100 9101 *) SHA library changes for irix64-mips4-cc. 9102 [Andy Polyakov] 9103 9104 *) Improvements for VMS support. 9105 [Richard Levitte] 9106 9107 9108 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9109 9110 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9111 This also avoids the problems with SC4.2 and unpatched SC5. 9112 [Andy Polyakov <appro@fy.chalmers.se>] 9113 9114 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9115 These are required because of the typesafe stack would otherwise break 9116 existing code. If old code used a structure member which used to be STACK 9117 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9118 sk_num or sk_value it would produce an error because the num, data members 9119 are not present in STACK_OF. Now it just produces a warning. sk_set 9120 replaces the old method of assigning a value to sk_value 9121 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9122 that does this will no longer work (and should use sk_set instead) but 9123 this could be regarded as a "questionable" behaviour anyway. 9124 [Steve Henson] 9125 9126 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9127 correctly handle encrypted S/MIME data. 9128 [Steve Henson] 9129 9130 *) Change type of various DES function arguments from des_cblock 9131 (which means, in function argument declarations, pointer to char) 9132 to des_cblock * (meaning pointer to array with 8 char elements), 9133 which allows the compiler to do more typechecking; it was like 9134 that back in SSLeay, but with lots of ugly casts. 9135 9136 Introduce new type const_des_cblock. 9137 [Bodo Moeller] 9138 9139 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9140 problems: find RecipientInfo structure that matches recipient certificate 9141 and initialise the ASN1 structures properly based on passed cipher. 9142 [Steve Henson] 9143 9144 *) Belatedly make the BN tests actually check the results. 9145 [Ben Laurie] 9146 9147 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9148 to and from BNs: it was completely broken. New compilation option 9149 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9150 key elements as negative integers. 9151 [Steve Henson] 9152 9153 *) Reorganize and speed up MD5. 9154 [Andy Polyakov <appro@fy.chalmers.se>] 9155 9156 *) VMS support. 9157 [Richard Levitte <richard@levitte.org>] 9158 9159 *) New option -out to asn1parse to allow the parsed structure to be 9160 output to a file. This is most useful when combined with the -strparse 9161 option to examine the output of things like OCTET STRINGS. 9162 [Steve Henson] 9163 9164 *) Make SSL library a little more fool-proof by not requiring any longer 9165 that SSL_set_{accept,connect}_state be called before 9166 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9167 in many applications because usually everything *appeared* to work as 9168 intended anyway -- now it really works as intended). 9169 [Bodo Moeller] 9170 9171 *) Move openssl.cnf out of lib/. 9172 [Ulf M�ller] 9173 9174 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9175 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9176 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9177 [Ralf S. Engelschall] 9178 9179 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9180 handle PKCS#7 enveloped data properly. 9181 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9182 9183 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9184 copying pointers. The cert_st handling is changed by this in 9185 various ways (and thus what used to be known as ctx->default_cert 9186 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9187 any longer when s->cert does not give us what we need). 9188 ssl_cert_instantiate becomes obsolete by this change. 9189 As soon as we've got the new code right (possibly it already is?), 9190 we have solved a couple of bugs of the earlier code where s->cert 9191 was used as if it could not have been shared with other SSL structures. 9192 9193 Note that using the SSL API in certain dirty ways now will result 9194 in different behaviour than observed with earlier library versions: 9195 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9196 does not influence s as it used to. 9197 9198 In order to clean up things more thoroughly, inside SSL_SESSION 9199 we don't use CERT any longer, but a new structure SESS_CERT 9200 that holds per-session data (if available); currently, this is 9201 the peer's certificate chain and, for clients, the server's certificate 9202 and temporary key. CERT holds only those values that can have 9203 meaningful defaults in an SSL_CTX. 9204 [Bodo Moeller] 9205 9206 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9207 from the internal representation. Various PKCS#7 fixes: remove some 9208 evil casts and set the enc_dig_alg field properly based on the signing 9209 key type. 9210 [Steve Henson] 9211 9212 *) Allow PKCS#12 password to be set from the command line or the 9213 environment. Let 'ca' get its config file name from the environment 9214 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9215 and 'x509'). 9216 [Steve Henson] 9217 9218 *) Allow certificate policies extension to use an IA5STRING for the 9219 organization field. This is contrary to the PKIX definition but 9220 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9221 extension option. 9222 [Steve Henson] 9223 9224 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9225 without disallowing inline assembler and the like for non-pedantic builds. 9226 [Ben Laurie] 9227 9228 *) Support Borland C++ builder. 9229 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9230 9231 *) Support Mingw32. 9232 [Ulf M�ller] 9233 9234 *) SHA-1 cleanups and performance enhancements. 9235 [Andy Polyakov <appro@fy.chalmers.se>] 9236 9237 *) Sparc v8plus assembler for the bignum library. 9238 [Andy Polyakov <appro@fy.chalmers.se>] 9239 9240 *) Accept any -xxx and +xxx compiler options in Configure. 9241 [Ulf M�ller] 9242 9243 *) Update HPUX configuration. 9244 [Anonymous] 9245 9246 *) Add missing sk_<type>_unshift() function to safestack.h 9247 [Ralf S. Engelschall] 9248 9249 *) New function SSL_CTX_use_certificate_chain_file that sets the 9250 "extra_cert"s in addition to the certificate. (This makes sense 9251 only for "PEM" format files, as chains as a whole are not 9252 DER-encoded.) 9253 [Bodo Moeller] 9254 9255 *) Support verify_depth from the SSL API. 9256 x509_vfy.c had what can be considered an off-by-one-error: 9257 Its depth (which was not part of the external interface) 9258 was actually counting the number of certificates in a chain; 9259 now it really counts the depth. 9260 [Bodo Moeller] 9261 9262 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9263 instead of X509err, which often resulted in confusing error 9264 messages since the error codes are not globally unique 9265 (e.g. an alleged error in ssl3_accept when a certificate 9266 didn't match the private key). 9267 9268 *) New function SSL_CTX_set_session_id_context that allows to set a default 9269 value (so that you don't need SSL_set_session_id_context for each 9270 connection using the SSL_CTX). 9271 [Bodo Moeller] 9272 9273 *) OAEP decoding bug fix. 9274 [Ulf M�ller] 9275 9276 *) Support INSTALL_PREFIX for package builders, as proposed by 9277 David Harris. 9278 [Bodo Moeller] 9279 9280 *) New Configure options "threads" and "no-threads". For systems 9281 where the proper compiler options are known (currently Solaris 9282 and Linux), "threads" is the default. 9283 [Bodo Moeller] 9284 9285 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9286 [Bodo Moeller] 9287 9288 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9289 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9290 such as /usr/local/bin. 9291 [Bodo Moeller] 9292 9293 *) "make linux-shared" to build shared libraries. 9294 [Niels Poppe <niels@netbox.org>] 9295 9296 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9297 [Ulf M�ller] 9298 9299 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9300 extension adding in x509 utility. 9301 [Steve Henson] 9302 9303 *) Remove NOPROTO sections and error code comments. 9304 [Ulf M�ller] 9305 9306 *) Partial rewrite of the DEF file generator to now parse the ANSI 9307 prototypes. 9308 [Steve Henson] 9309 9310 *) New Configure options --prefix=DIR and --openssldir=DIR. 9311 [Ulf M�ller] 9312 9313 *) Complete rewrite of the error code script(s). It is all now handled 9314 by one script at the top level which handles error code gathering, 9315 header rewriting and C source file generation. It should be much better 9316 than the old method: it now uses a modified version of Ulf's parser to 9317 read the ANSI prototypes in all header files (thus the old K&R definitions 9318 aren't needed for error creation any more) and do a better job of 9319 translating function codes into names. The old 'ASN1 error code imbedded 9320 in a comment' is no longer necessary and it doesn't use .err files which 9321 have now been deleted. Also the error code call doesn't have to appear all 9322 on one line (which resulted in some large lines...). 9323 [Steve Henson] 9324 9325 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9326 [Bodo Moeller] 9327 9328 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9329 0 (which usually indicates a closed connection), but continue reading. 9330 [Bodo Moeller] 9331 9332 *) Fix some race conditions. 9333 [Bodo Moeller] 9334 9335 *) Add support for CRL distribution points extension. Add Certificate 9336 Policies and CRL distribution points documentation. 9337 [Steve Henson] 9338 9339 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9340 [Ulf M�ller] 9341 9342 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9343 8 of keying material. Merlin has also confirmed interop with this fix 9344 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9345 [Merlin Hughes <merlin@baltimore.ie>] 9346 9347 *) Fix lots of warnings. 9348 [Richard Levitte <levitte@stacken.kth.se>] 9349 9350 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9351 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9352 [Richard Levitte <levitte@stacken.kth.se>] 9353 9354 *) Fix problems with sizeof(long) == 8. 9355 [Andy Polyakov <appro@fy.chalmers.se>] 9356 9357 *) Change functions to ANSI C. 9358 [Ulf M�ller] 9359 9360 *) Fix typos in error codes. 9361 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9362 9363 *) Remove defunct assembler files from Configure. 9364 [Ulf M�ller] 9365 9366 *) SPARC v8 assembler BIGNUM implementation. 9367 [Andy Polyakov <appro@fy.chalmers.se>] 9368 9369 *) Support for Certificate Policies extension: both print and set. 9370 Various additions to support the r2i method this uses. 9371 [Steve Henson] 9372 9373 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9374 return a const string when you are expecting an allocated buffer. 9375 [Ben Laurie] 9376 9377 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9378 types DirectoryString and DisplayText. 9379 [Steve Henson] 9380 9381 *) Add code to allow r2i extensions to access the configuration database, 9382 add an LHASH database driver and add several ctx helper functions. 9383 [Steve Henson] 9384 9385 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9386 fail when they extended the size of a BIGNUM. 9387 [Steve Henson] 9388 9389 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9390 support typesafe stack. 9391 [Steve Henson] 9392 9393 *) Fix typo in SSL_[gs]et_options(). 9394 [Nils Frostberg <nils@medcom.se>] 9395 9396 *) Delete various functions and files that belonged to the (now obsolete) 9397 old X509V3 handling code. 9398 [Steve Henson] 9399 9400 *) New Configure option "rsaref". 9401 [Ulf M�ller] 9402 9403 *) Don't auto-generate pem.h. 9404 [Bodo Moeller] 9405 9406 *) Introduce type-safe ASN.1 SETs. 9407 [Ben Laurie] 9408 9409 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9410 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9411 9412 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9413 that links with OpenSSL (well at least cause lots of warnings), but fear 9414 not: the conversion is trivial, and it eliminates loads of evil casts. A 9415 few STACKed things have been converted already. Feel free to convert more. 9416 In the fullness of time, I'll do away with the STACK type altogether. 9417 [Ben Laurie] 9418 9419 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9420 specified in <certfile> by updating the entry in the index.txt file. 9421 This way one no longer has to edit the index.txt file manually for 9422 revoking a certificate. The -revoke option does the gory details now. 9423 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9424 9425 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9426 `-text' option at all and this way the `-noout -text' combination was 9427 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9428 [Ralf S. Engelschall] 9429 9430 *) Make sure a corresponding plain text error message exists for the 9431 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9432 verify callback function determined that a certificate was revoked. 9433 [Ralf S. Engelschall] 9434 9435 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9436 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9437 all available cipers including rc5, which was forgotten until now. 9438 In order to let the testing shell script know which algorithms 9439 are available, a new (up to now undocumented) command 9440 "openssl list-cipher-commands" is used. 9441 [Bodo Moeller] 9442 9443 *) Bugfix: s_client occasionally would sleep in select() when 9444 it should have checked SSL_pending() first. 9445 [Bodo Moeller] 9446 9447 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9448 the raw DSA values prior to ASN.1 encoding. 9449 [Ulf M�ller] 9450 9451 *) Tweaks to Configure 9452 [Niels Poppe <niels@netbox.org>] 9453 9454 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9455 yet... 9456 [Steve Henson] 9457 9458 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9459 [Ulf M�ller] 9460 9461 *) New config option to avoid instructions that are illegal on the 80386. 9462 The default code is faster, but requires at least a 486. 9463 [Ulf M�ller] 9464 9465 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9466 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9467 same as SSL2_VERSION anyway. 9468 [Bodo Moeller] 9469 9470 *) New "-showcerts" option for s_client. 9471 [Bodo Moeller] 9472 9473 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9474 application. Various cleanups and fixes. 9475 [Steve Henson] 9476 9477 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9478 modify error routines to work internally. Add error codes and PBE init 9479 to library startup routines. 9480 [Steve Henson] 9481 9482 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9483 packing functions to asn1 and evp. Changed function names and error 9484 codes along the way. 9485 [Steve Henson] 9486 9487 *) PKCS12 integration: and so it begins... First of several patches to 9488 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9489 objects to objects.h 9490 [Steve Henson] 9491 9492 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9493 and display support for Thawte strong extranet extension. 9494 [Steve Henson] 9495 9496 *) Add LinuxPPC support. 9497 [Jeff Dubrule <igor@pobox.org>] 9498 9499 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9500 bn_div_words in alpha.s. 9501 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9502 9503 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9504 OAEP isn't supported when OpenSSL is built with RSAref. 9505 [Ulf Moeller <ulf@fitug.de>] 9506 9507 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9508 so they no longer are missing under -DNOPROTO. 9509 [Soren S. Jorvang <soren@t.dk>] 9510 9511 9512 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9513 9514 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9515 doesn't work when the session is reused. Coming soon! 9516 [Ben Laurie] 9517 9518 *) Fix a security hole, that allows sessions to be reused in the wrong 9519 context thus bypassing client cert protection! All software that uses 9520 client certs and session caches in multiple contexts NEEDS PATCHING to 9521 allow session reuse! A fuller solution is in the works. 9522 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9523 9524 *) Some more source tree cleanups (removed obsolete files 9525 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9526 permission on "config" script to be executable) and a fix for the INSTALL 9527 document. 9528 [Ulf Moeller <ulf@fitug.de>] 9529 9530 *) Remove some legacy and erroneous uses of malloc, free instead of 9531 Malloc, Free. 9532 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9533 9534 *) Make rsa_oaep_test return non-zero on error. 9535 [Ulf Moeller <ulf@fitug.de>] 9536 9537 *) Add support for native Solaris shared libraries. Configure 9538 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9539 if someone would make that last step automatic. 9540 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9541 9542 *) ctx_size was not built with the right compiler during "make links". Fixed. 9543 [Ben Laurie] 9544 9545 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9546 except NULL ciphers". This means the default cipher list will no longer 9547 enable NULL ciphers. They need to be specifically enabled e.g. with 9548 the string "DEFAULT:eNULL". 9549 [Steve Henson] 9550 9551 *) Fix to RSA private encryption routines: if p < q then it would 9552 occasionally produce an invalid result. This will only happen with 9553 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9554 [Steve Henson] 9555 9556 *) Be less restrictive and allow also `perl util/perlpath.pl 9557 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9558 because this way one can also use an interpreter named `perl5' (which is 9559 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9560 installed as `perl'). 9561 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9562 9563 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9564 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9565 9566 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9567 advapi32.lib to Win32 build and change the pem test comparision 9568 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9569 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9570 and crypto/des/ede_cbcm_enc.c. 9571 [Steve Henson] 9572 9573 *) DES quad checksum was broken on big-endian architectures. Fixed. 9574 [Ben Laurie] 9575 9576 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9577 Win32 test batch file so it (might) work again. The Win32 test batch file 9578 is horrible: I feel ill.... 9579 [Steve Henson] 9580 9581 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9582 in e_os.h. Audit of header files to check ANSI and non ANSI 9583 sections: 10 functions were absent from non ANSI section and not exported 9584 from Windows DLLs. Fixed up libeay.num for new functions. 9585 [Steve Henson] 9586 9587 *) Make `openssl version' output lines consistent. 9588 [Ralf S. Engelschall] 9589 9590 *) Fix Win32 symbol export lists for BIO functions: Added 9591 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9592 to ms/libeay{16,32}.def. 9593 [Ralf S. Engelschall] 9594 9595 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9596 fine under Unix and passes some trivial tests I've now added. But the 9597 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9598 added to make sure no one expects that this stuff really works in the 9599 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9600 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9601 openssl_bio.xs. 9602 [Ralf S. Engelschall] 9603 9604 *) Fix the generation of two part addresses in perl. 9605 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9606 9607 *) Add config entry for Linux on MIPS. 9608 [John Tobey <jtobey@channel1.com>] 9609 9610 *) Make links whenever Configure is run, unless we are on Windoze. 9611 [Ben Laurie] 9612 9613 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9614 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9615 in CRLs. 9616 [Steve Henson] 9617 9618 *) Add a useful kludge to allow package maintainers to specify compiler and 9619 other platforms details on the command line without having to patch the 9620 Configure script everytime: One now can use ``perl Configure 9621 <id>:<details>'', i.e. platform ids are allowed to have details appended 9622 to them (seperated by colons). This is treated as there would be a static 9623 pre-configured entry in Configure's %table under key <id> with value 9624 <details> and ``perl Configure <id>'' is called. So, when you want to 9625 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9626 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9627 now, which overrides the FreeBSD-elf entry on-the-fly. 9628 [Ralf S. Engelschall] 9629 9630 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9631 [Ben Laurie] 9632 9633 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9634 on the `perl Configure ...' command line. This way one can compile 9635 OpenSSL libraries with Position Independent Code (PIC) which is needed 9636 for linking it into DSOs. 9637 [Ralf S. Engelschall] 9638 9639 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9640 Fixed. 9641 [Ben Laurie] 9642 9643 *) Cleaned up the LICENSE document: The official contact for any license 9644 questions now is the OpenSSL core team under openssl-core@openssl.org. 9645 And add a paragraph about the dual-license situation to make sure people 9646 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9647 to the OpenSSL toolkit. 9648 [Ralf S. Engelschall] 9649 9650 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9651 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9652 Additonally cleaned up the `make links' target: Remove unnecessary 9653 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9654 to speed processing and no longer clutter the display with confusing 9655 stuff. Instead only the actually done links are displayed. 9656 [Ralf S. Engelschall] 9657 9658 *) Permit null encryption ciphersuites, used for authentication only. It used 9659 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9660 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9661 encryption. 9662 [Ben Laurie] 9663 9664 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9665 signed attributes when verifying signatures (this would break them), 9666 the detached data encoding was wrong and public keys obtained using 9667 X509_get_pubkey() weren't freed. 9668 [Steve Henson] 9669 9670 *) Add text documentation for the BUFFER functions. Also added a work around 9671 to a Win95 console bug. This was triggered by the password read stuff: the 9672 last character typed gets carried over to the next fread(). If you were 9673 generating a new cert request using 'req' for example then the last 9674 character of the passphrase would be CR which would then enter the first 9675 field as blank. 9676 [Steve Henson] 9677 9678 *) Added the new `Includes OpenSSL Cryptography Software' button as 9679 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9680 button and can be used by applications based on OpenSSL to show the 9681 relationship to the OpenSSL project. 9682 [Ralf S. Engelschall] 9683 9684 *) Remove confusing variables in function signatures in files 9685 ssl/ssl_lib.c and ssl/ssl.h. 9686 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9687 9688 *) Don't install bss_file.c under PREFIX/include/ 9689 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9690 9691 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9692 functions that return function pointers and has support for NT specific 9693 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9694 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9695 unsigned to signed types: this was killing the Win32 compile. 9696 [Steve Henson] 9697 9698 *) Add new certificate file to stack functions, 9699 SSL_add_dir_cert_subjects_to_stack() and 9700 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9701 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9702 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9703 This means that Apache-SSL and similar packages don't have to mess around 9704 to add as many CAs as they want to the preferred list. 9705 [Ben Laurie] 9706 9707 *) Experiment with doxygen documentation. Currently only partially applied to 9708 ssl/ssl_lib.c. 9709 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9710 openssl.doxy as the configuration file. 9711 [Ben Laurie] 9712 9713 *) Get rid of remaining C++-style comments which strict C compilers hate. 9714 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9715 9716 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9717 compiled in by default: it has problems with large keys. 9718 [Steve Henson] 9719 9720 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9721 DH private keys and/or callback functions which directly correspond to 9722 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9723 is needed for applications which have to configure certificates on a 9724 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9725 (e.g. s_server). 9726 For the RSA certificate situation is makes no difference, but 9727 for the DSA certificate situation this fixes the "no shared cipher" 9728 problem where the OpenSSL cipher selection procedure failed because the 9729 temporary keys were not overtaken from the context and the API provided 9730 no way to reconfigure them. 9731 The new functions now let applications reconfigure the stuff and they 9732 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9733 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9734 non-public-API function ssl_cert_instantiate() is used as a helper 9735 function and also to reduce code redundancy inside ssl_rsa.c. 9736 [Ralf S. Engelschall] 9737 9738 *) Move s_server -dcert and -dkey options out of the undocumented feature 9739 area because they are useful for the DSA situation and should be 9740 recognized by the users. 9741 [Ralf S. Engelschall] 9742 9743 *) Fix the cipher decision scheme for export ciphers: the export bits are 9744 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9745 SSL_EXP_MASK. So, the original variable has to be used instead of the 9746 already masked variable. 9747 [Richard Levitte <levitte@stacken.kth.se>] 9748 9749 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9750 [Richard Levitte <levitte@stacken.kth.se>] 9751 9752 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9753 from `int' to `unsigned int' because it's a length and initialized by 9754 EVP_DigestFinal() which expects an `unsigned int *'. 9755 [Richard Levitte <levitte@stacken.kth.se>] 9756 9757 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9758 script. Instead use the usual Shell->Perl transition trick. 9759 [Ralf S. Engelschall] 9760 9761 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9762 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9763 -noout -modulus' as it's already the case for `openssl rsa -noout 9764 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9765 currently the public key is printed (a decision which was already done by 9766 `openssl dsa -modulus' in the past) which serves a similar purpose. 9767 Additionally the NO_RSA no longer completely removes the whole -modulus 9768 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9769 now, too. 9770 [Ralf S. Engelschall] 9771 9772 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9773 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9774 [Arne Ansper <arne@ats.cyber.ee>] 9775 9776 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9777 to be added. Now both 'req' and 'ca' can use new objects defined in the 9778 config file. 9779 [Steve Henson] 9780 9781 *) Add cool BIO that does syslog (or event log on NT). 9782 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9783 9784 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9785 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9786 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9787 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9788 [Ben Laurie] 9789 9790 *) Add preliminary config info for new extension code. 9791 [Steve Henson] 9792 9793 *) Make RSA_NO_PADDING really use no padding. 9794 [Ulf Moeller <ulf@fitug.de>] 9795 9796 *) Generate errors when private/public key check is done. 9797 [Ben Laurie] 9798 9799 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9800 for some CRL extensions and new objects added. 9801 [Steve Henson] 9802 9803 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9804 key usage extension and fuller support for authority key id. 9805 [Steve Henson] 9806 9807 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9808 padding method for RSA, which is recommended for new applications in PKCS 9809 #1 v2.0 (RFC 2437, October 1998). 9810 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9811 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9812 against Bleichbacher's attack on RSA. 9813 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9814 Ben Laurie] 9815 9816 *) Updates to the new SSL compression code 9817 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9818 9819 *) Fix so that the version number in the master secret, when passed 9820 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9821 (because the server will not accept higher), that the version number 9822 is 0x03,0x01, not 0x03,0x00 9823 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9824 9825 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9826 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9827 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9828 [Steve Henson] 9829 9830 *) Support for RAW extensions where an arbitrary extension can be 9831 created by including its DER encoding. See apps/openssl.cnf for 9832 an example. 9833 [Steve Henson] 9834 9835 *) Make sure latest Perl versions don't interpret some generated C array 9836 code as Perl array code in the crypto/err/err_genc.pl script. 9837 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9838 9839 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9840 not many people have the assembler. Various Win32 compilation fixes and 9841 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9842 build instructions. 9843 [Steve Henson] 9844 9845 *) Modify configure script 'Configure' to automatically create crypto/date.h 9846 file under Win32 and also build pem.h from pem.org. New script 9847 util/mkfiles.pl to create the MINFO file on environments that can't do a 9848 'make files': perl util/mkfiles.pl >MINFO should work. 9849 [Steve Henson] 9850 9851 *) Major rework of DES function declarations, in the pursuit of correctness 9852 and purity. As a result, many evil casts evaporated, and some weirdness, 9853 too. You may find this causes warnings in your code. Zapping your evil 9854 casts will probably fix them. Mostly. 9855 [Ben Laurie] 9856 9857 *) Fix for a typo in asn1.h. Bug fix to object creation script 9858 obj_dat.pl. It considered a zero in an object definition to mean 9859 "end of object": none of the objects in objects.h have any zeros 9860 so it wasn't spotted. 9861 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9862 9863 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9864 Masking (CBCM). In the absence of test vectors, the best I have been able 9865 to do is check that the decrypt undoes the encrypt, so far. Send me test 9866 vectors if you have them. 9867 [Ben Laurie] 9868 9869 *) Correct calculation of key length for export ciphers (too much space was 9870 allocated for null ciphers). This has not been tested! 9871 [Ben Laurie] 9872 9873 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9874 message is now correct (it understands "crypto" and "ssl" on its 9875 command line). There is also now an "update" option. This will update 9876 the util/ssleay.num and util/libeay.num files with any new functions. 9877 If you do a: 9878 perl util/mkdef.pl crypto ssl update 9879 it will update them. 9880 [Steve Henson] 9881 9882 *) Overhauled the Perl interface (perl/*): 9883 - ported BN stuff to OpenSSL's different BN library 9884 - made the perl/ source tree CVS-aware 9885 - renamed the package from SSLeay to OpenSSL (the files still contain 9886 their history because I've copied them in the repository) 9887 - removed obsolete files (the test scripts will be replaced 9888 by better Test::Harness variants in the future) 9889 [Ralf S. Engelschall] 9890 9891 *) First cut for a very conservative source tree cleanup: 9892 1. merge various obsolete readme texts into doc/ssleay.txt 9893 where we collect the old documents and readme texts. 9894 2. remove the first part of files where I'm already sure that we no 9895 longer need them because of three reasons: either they are just temporary 9896 files which were left by Eric or they are preserved original files where 9897 I've verified that the diff is also available in the CVS via "cvs diff 9898 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9899 the crypto/md/ stuff). 9900 [Ralf S. Engelschall] 9901 9902 *) More extension code. Incomplete support for subject and issuer alt 9903 name, issuer and authority key id. Change the i2v function parameters 9904 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9905 what that's for :-) Fix to ASN1 macro which messed up 9906 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9907 [Steve Henson] 9908 9909 *) Preliminary support for ENUMERATED type. This is largely copied from the 9910 INTEGER code. 9911 [Steve Henson] 9912 9913 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 9914 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9915 9916 *) Make sure `make rehash' target really finds the `openssl' program. 9917 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9918 9919 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 9920 like to hear about it if this slows down other processors. 9921 [Ben Laurie] 9922 9923 *) Add CygWin32 platform information to Configure script. 9924 [Alan Batie <batie@aahz.jf.intel.com>] 9925 9926 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 9927 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 9928 9929 *) New program nseq to manipulate netscape certificate sequences 9930 [Steve Henson] 9931 9932 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 9933 few typos. 9934 [Steve Henson] 9935 9936 *) Fixes to BN code. Previously the default was to define BN_RECURSION 9937 but the BN code had some problems that would cause failures when 9938 doing certificate verification and some other functions. 9939 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9940 9941 *) Add ASN1 and PEM code to support netscape certificate sequences. 9942 [Steve Henson] 9943 9944 *) Add ASN1 and PEM code to support netscape certificate sequences. 9945 [Steve Henson] 9946 9947 *) Add several PKIX and private extended key usage OIDs. 9948 [Steve Henson] 9949 9950 *) Modify the 'ca' program to handle the new extension code. Modify 9951 openssl.cnf for new extension format, add comments. 9952 [Steve Henson] 9953 9954 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 9955 and add a sample to openssl.cnf so req -x509 now adds appropriate 9956 CA extensions. 9957 [Steve Henson] 9958 9959 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 9960 error code, add initial support to X509_print() and x509 application. 9961 [Steve Henson] 9962 9963 *) Takes a deep breath and start addding X509 V3 extension support code. Add 9964 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 9965 stuff is currently isolated and isn't even compiled yet. 9966 [Steve Henson] 9967 9968 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 9969 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 9970 Removed the versions check from X509 routines when loading extensions: 9971 this allows certain broken certificates that don't set the version 9972 properly to be processed. 9973 [Steve Henson] 9974 9975 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 9976 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 9977 can still be regenerated with "make depend". 9978 [Ben Laurie] 9979 9980 *) Spelling mistake in C version of CAST-128. 9981 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 9982 9983 *) Changes to the error generation code. The perl script err-code.pl 9984 now reads in the old error codes and retains the old numbers, only 9985 adding new ones if necessary. It also only changes the .err files if new 9986 codes are added. The makefiles have been modified to only insert errors 9987 when needed (to avoid needlessly modifying header files). This is done 9988 by only inserting errors if the .err file is newer than the auto generated 9989 C file. To rebuild all the error codes from scratch (the old behaviour) 9990 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 9991 or delete all the .err files. 9992 [Steve Henson] 9993 9994 *) CAST-128 was incorrectly implemented for short keys. The C version has 9995 been fixed, but is untested. The assembler versions are also fixed, but 9996 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 9997 to regenerate it if needed. 9998 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 9999 Hagino <itojun@kame.net>] 10000 10001 *) File was opened incorrectly in randfile.c. 10002 [Ulf M�ller <ulf@fitug.de>] 10003 10004 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 10005 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 10006 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 10007 al: it's just almost always a UTCTime. Note this patch adds new error 10008 codes so do a "make errors" if there are problems. 10009 [Steve Henson] 10010 10011 *) Correct Linux 1 recognition in config. 10012 [Ulf M�ller <ulf@fitug.de>] 10013 10014 *) Remove pointless MD5 hash when using DSA keys in ca. 10015 [Anonymous <nobody@replay.com>] 10016 10017 *) Generate an error if given an empty string as a cert directory. Also 10018 generate an error if handed NULL (previously returned 0 to indicate an 10019 error, but didn't set one). 10020 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 10021 10022 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 10023 [Ben Laurie] 10024 10025 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 10026 parameters. This was causing a warning which killed off the Win32 compile. 10027 [Steve Henson] 10028 10029 *) Remove C++ style comments from crypto/bn/bn_local.h. 10030 [Neil Costigan <neil.costigan@celocom.com>] 10031 10032 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 10033 based on a text string, looking up short and long names and finally 10034 "dot" format. The "dot" format stuff didn't work. Added new function 10035 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 10036 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 10037 OID is not part of the table. 10038 [Steve Henson] 10039 10040 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 10041 X509_LOOKUP_by_alias(). 10042 [Ben Laurie] 10043 10044 *) Sort openssl functions by name. 10045 [Ben Laurie] 10046 10047 *) Get the gendsa program working (hopefully) and add it to app list. Remove 10048 encryption from sample DSA keys (in case anyone is interested the password 10049 was "1234"). 10050 [Steve Henson] 10051 10052 *) Make _all_ *_free functions accept a NULL pointer. 10053 [Frans Heymans <fheymans@isaserver.be>] 10054 10055 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 10056 NULL pointers. 10057 [Anonymous <nobody@replay.com>] 10058 10059 *) s_server should send the CAfile as acceptable CAs, not its own cert. 10060 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10061 10062 *) Don't blow it for numeric -newkey arguments to apps/req. 10063 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10064 10065 *) Temp key "for export" tests were wrong in s3_srvr.c. 10066 [Anonymous <nobody@replay.com>] 10067 10068 *) Add prototype for temp key callback functions 10069 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10070 [Ben Laurie] 10071 10072 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10073 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10074 [Steve Henson] 10075 10076 *) X509_name_add_entry() freed the wrong thing after an error. 10077 [Arne Ansper <arne@ats.cyber.ee>] 10078 10079 *) rsa_eay.c would attempt to free a NULL context. 10080 [Arne Ansper <arne@ats.cyber.ee>] 10081 10082 *) BIO_s_socket() had a broken should_retry() on Windoze. 10083 [Arne Ansper <arne@ats.cyber.ee>] 10084 10085 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10086 [Arne Ansper <arne@ats.cyber.ee>] 10087 10088 *) Make sure the already existing X509_STORE->depth variable is initialized 10089 in X509_STORE_new(), but document the fact that this variable is still 10090 unused in the certificate verification process. 10091 [Ralf S. Engelschall] 10092 10093 *) Fix the various library and apps files to free up pkeys obtained from 10094 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10095 [Steve Henson] 10096 10097 *) Fix reference counting in X509_PUBKEY_get(). This makes 10098 demos/maurice/example2.c work, amongst others, probably. 10099 [Steve Henson and Ben Laurie] 10100 10101 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10102 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10103 are no longer created. This way we have a single and consistent command 10104 line interface `openssl <command>', similar to `cvs <command>'. 10105 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10106 10107 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10108 BIT STRING wrapper always have zero unused bits. 10109 [Steve Henson] 10110 10111 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10112 [Steve Henson] 10113 10114 *) Make the top-level INSTALL documentation easier to understand. 10115 [Paul Sutton] 10116 10117 *) Makefiles updated to exit if an error occurs in a sub-directory 10118 make (including if user presses ^C) [Paul Sutton] 10119 10120 *) Make Montgomery context stuff explicit in RSA data structure. 10121 [Ben Laurie] 10122 10123 *) Fix build order of pem and err to allow for generated pem.h. 10124 [Ben Laurie] 10125 10126 *) Fix renumbering bug in X509_NAME_delete_entry(). 10127 [Ben Laurie] 10128 10129 *) Enhanced the err-ins.pl script so it makes the error library number 10130 global and can add a library name. This is needed for external ASN1 and 10131 other error libraries. 10132 [Steve Henson] 10133 10134 *) Fixed sk_insert which never worked properly. 10135 [Steve Henson] 10136 10137 *) Fix ASN1 macros so they can handle indefinite length construted 10138 EXPLICIT tags. Some non standard certificates use these: they can now 10139 be read in. 10140 [Steve Henson] 10141 10142 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10143 into a single doc/ssleay.txt bundle. This way the information is still 10144 preserved but no longer messes up this directory. Now it's new room for 10145 the new set of documenation files. 10146 [Ralf S. Engelschall] 10147 10148 *) SETs were incorrectly DER encoded. This was a major pain, because they 10149 shared code with SEQUENCEs, which aren't coded the same. This means that 10150 almost everything to do with SETs or SEQUENCEs has either changed name or 10151 number of arguments. 10152 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10153 10154 *) Fix test data to work with the above. 10155 [Ben Laurie] 10156 10157 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10158 was already fixed by Eric for 0.9.1 it seems. 10159 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10160 10161 *) Autodetect FreeBSD3. 10162 [Ben Laurie] 10163 10164 *) Fix various bugs in Configure. This affects the following platforms: 10165 nextstep 10166 ncr-scde 10167 unixware-2.0 10168 unixware-2.0-pentium 10169 sco5-cc. 10170 [Ben Laurie] 10171 10172 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10173 before they are needed. 10174 [Ben Laurie] 10175 10176 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10177 [Ben Laurie] 10178 10179 10180 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10181 10182 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10183 changed SSLeay to OpenSSL in version strings. 10184 [Ralf S. Engelschall] 10185 10186 *) Some fixups to the top-level documents. 10187 [Paul Sutton] 10188 10189 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10190 because the symlink to include/ was missing. 10191 [Ralf S. Engelschall] 10192 10193 *) Incorporated the popular no-RSA/DSA-only patches 10194 which allow to compile a RSA-free SSLeay. 10195 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10196 10197 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10198 when "ssleay" is still not found. 10199 [Ralf S. Engelschall] 10200 10201 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10202 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10203 10204 *) Updated the README file. 10205 [Ralf S. Engelschall] 10206 10207 *) Added various .cvsignore files in the CVS repository subdirs 10208 to make a "cvs update" really silent. 10209 [Ralf S. Engelschall] 10210 10211 *) Recompiled the error-definition header files and added 10212 missing symbols to the Win32 linker tables. 10213 [Ralf S. Engelschall] 10214 10215 *) Cleaned up the top-level documents; 10216 o new files: CHANGES and LICENSE 10217 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10218 o merged COPYRIGHT into LICENSE 10219 o removed obsolete TODO file 10220 o renamed MICROSOFT to INSTALL.W32 10221 [Ralf S. Engelschall] 10222 10223 *) Removed dummy files from the 0.9.1b source tree: 10224 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10225 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10226 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10227 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10228 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10229 [Ralf S. Engelschall] 10230 10231 *) Added various platform portability fixes. 10232 [Mark J. Cox] 10233 10234 *) The Genesis of the OpenSSL rpject: 10235 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10236 Young and Tim J. Hudson created while they were working for C2Net until 10237 summer 1998. 10238 [The OpenSSL Project] 10239 10240 10241 Changes between 0.9.0b and 0.9.1b [not released] 10242 10243 *) Updated a few CA certificates under certs/ 10244 [Eric A. Young] 10245 10246 *) Changed some BIGNUM api stuff. 10247 [Eric A. Young] 10248 10249 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10250 DGUX x86, Linux Alpha, etc. 10251 [Eric A. Young] 10252 10253 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10254 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10255 available). 10256 [Eric A. Young] 10257 10258 *) Add -strparse option to asn1pars program which parses nested 10259 binary structures 10260 [Dr Stephen Henson <shenson@bigfoot.com>] 10261 10262 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10263 [Eric A. Young] 10264 10265 *) DSA fix for "ca" program. 10266 [Eric A. Young] 10267 10268 *) Added "-genkey" option to "dsaparam" program. 10269 [Eric A. Young] 10270 10271 *) Added RIPE MD160 (rmd160) message digest. 10272 [Eric A. Young] 10273 10274 *) Added -a (all) option to "ssleay version" command. 10275 [Eric A. Young] 10276 10277 *) Added PLATFORM define which is the id given to Configure. 10278 [Eric A. Young] 10279 10280 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10281 [Eric A. Young] 10282 10283 *) Extended the ASN.1 parser routines. 10284 [Eric A. Young] 10285 10286 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10287 [Eric A. Young] 10288 10289 *) Added a BN_CTX to the BN library. 10290 [Eric A. Young] 10291 10292 *) Fixed the weak key values in DES library 10293 [Eric A. Young] 10294 10295 *) Changed API in EVP library for cipher aliases. 10296 [Eric A. Young] 10297 10298 *) Added support for RC2/64bit cipher. 10299 [Eric A. Young] 10300 10301 *) Converted the lhash library to the crypto/mem.c functions. 10302 [Eric A. Young] 10303 10304 *) Added more recognized ASN.1 object ids. 10305 [Eric A. Young] 10306 10307 *) Added more RSA padding checks for SSL/TLS. 10308 [Eric A. Young] 10309 10310 *) Added BIO proxy/filter functionality. 10311 [Eric A. Young] 10312 10313 *) Added extra_certs to SSL_CTX which can be used 10314 send extra CA certificates to the client in the CA cert chain sending 10315 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10316 [Eric A. Young] 10317 10318 *) Now Fortezza is denied in the authentication phase because 10319 this is key exchange mechanism is not supported by SSLeay at all. 10320 [Eric A. Young] 10321 10322 *) Additional PKCS1 checks. 10323 [Eric A. Young] 10324 10325 *) Support the string "TLSv1" for all TLS v1 ciphers. 10326 [Eric A. Young] 10327 10328 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10329 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10330 [Eric A. Young] 10331 10332 *) Fixed a few memory leaks. 10333 [Eric A. Young] 10334 10335 *) Fixed various code and comment typos. 10336 [Eric A. Young] 10337 10338 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10339 bytes sent in the client random. 10340 [Edward Bishop <ebishop@spyglass.com>] 10341 10342