CHANGES revision 284285
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 6 7 *) Malformed ECParameters causes infinite loop 8 9 When processing an ECParameters structure OpenSSL enters an infinite loop 10 if the curve specified is over a specially malformed binary polynomial 11 field. 12 13 This can be used to perform denial of service against any 14 system which processes public keys, certificate requests or 15 certificates. This includes TLS clients and TLS servers with 16 client authentication enabled. 17 18 This issue was reported to OpenSSL by Joseph Barr-Pixton. 19 (CVE-2015-1788) 20 [Andy Polyakov] 21 22 *) Exploitable out-of-bounds read in X509_cmp_time 23 24 X509_cmp_time does not properly check the length of the ASN1_TIME 25 string and can read a few bytes out of bounds. In addition, 26 X509_cmp_time accepts an arbitrary number of fractional seconds in the 27 time string. 28 29 An attacker can use this to craft malformed certificates and CRLs of 30 various sizes and potentially cause a segmentation fault, resulting in 31 a DoS on applications that verify certificates or CRLs. TLS clients 32 that verify CRLs are affected. TLS clients and servers with client 33 authentication enabled may be affected if they use custom verification 34 callbacks. 35 36 This issue was reported to OpenSSL by Robert Swiecki (Google), and 37 independently by Hanno B�ck. 38 (CVE-2015-1789) 39 [Emilia K�sper] 40 41 *) PKCS7 crash with missing EnvelopedContent 42 43 The PKCS#7 parsing code does not handle missing inner EncryptedContent 44 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 45 with missing content and trigger a NULL pointer dereference on parsing. 46 47 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 48 structures from untrusted sources are affected. OpenSSL clients and 49 servers are not affected. 50 51 This issue was reported to OpenSSL by Michal Zalewski (Google). 52 (CVE-2015-1790) 53 [Emilia K�sper] 54 55 *) CMS verify infinite loop with unknown hash function 56 57 When verifying a signedData message the CMS code can enter an infinite loop 58 if presented with an unknown hash function OID. This can be used to perform 59 denial of service against any system which verifies signedData messages using 60 the CMS code. 61 This issue was reported to OpenSSL by Johannes Bauer. 62 (CVE-2015-1792) 63 [Stephen Henson] 64 65 *) Race condition handling NewSessionTicket 66 67 If a NewSessionTicket is received by a multi-threaded client when attempting to 68 reuse a previous ticket then a race condition can occur potentially leading to 69 a double free of the ticket data. 70 (CVE-2015-1791) 71 [Matt Caswell] 72 73 *) Reject DH handshakes with parameters shorter than 768 bits. 74 [Kurt Roeckx and Emilia Kasper] 75 76 Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 77 78 *) Segmentation fault in ASN1_TYPE_cmp fix 79 80 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 81 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 82 certificate signature algorithm consistency this can be used to crash any 83 certificate verification operation and exploited in a DoS attack. Any 84 application which performs certificate verification is vulnerable including 85 OpenSSL clients and servers which enable client authentication. 86 (CVE-2015-0286) 87 [Stephen Henson] 88 89 *) ASN.1 structure reuse memory corruption fix 90 91 Reusing a structure in ASN.1 parsing may allow an attacker to cause 92 memory corruption via an invalid write. Such reuse is and has been 93 strongly discouraged and is believed to be rare. 94 95 Applications that parse structures containing CHOICE or ANY DEFINED BY 96 components may be affected. Certificate parsing (d2i_X509 and related 97 functions) are however not affected. OpenSSL clients and servers are 98 not affected. 99 (CVE-2015-0287) 100 [Stephen Henson] 101 102 *) PKCS7 NULL pointer dereferences fix 103 104 The PKCS#7 parsing code does not handle missing outer ContentInfo 105 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 106 missing content and trigger a NULL pointer dereference on parsing. 107 108 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 109 otherwise parse PKCS#7 structures from untrusted sources are 110 affected. OpenSSL clients and servers are not affected. 111 112 This issue was reported to OpenSSL by Michal Zalewski (Google). 113 (CVE-2015-0289) 114 [Emilia K�sper] 115 116 *) DoS via reachable assert in SSLv2 servers fix 117 118 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 119 servers that both support SSLv2 and enable export cipher suites by sending 120 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 121 122 This issue was discovered by Sean Burford (Google) and Emilia K�sper 123 (OpenSSL development team). 124 (CVE-2015-0293) 125 [Emilia K�sper] 126 127 *) Use After Free following d2i_ECPrivatekey error fix 128 129 A malformed EC private key file consumed via the d2i_ECPrivateKey function 130 could cause a use after free condition. This, in turn, could cause a double 131 free in several private key parsing functions (such as d2i_PrivateKey 132 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 133 for applications that receive EC private keys from untrusted 134 sources. This scenario is considered rare. 135 136 This issue was discovered by the BoringSSL project and fixed in their 137 commit 517073cd4b. 138 (CVE-2015-0209) 139 [Matt Caswell] 140 141 *) X509_to_X509_REQ NULL pointer deref fix 142 143 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 144 the certificate key is invalid. This function is rarely used in practice. 145 146 This issue was discovered by Brian Carpenter. 147 (CVE-2015-0288) 148 [Stephen Henson] 149 150 *) Removed the export ciphers from the DEFAULT ciphers 151 [Kurt Roeckx] 152 153 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 154 155 *) Build fixes for the Windows and OpenVMS platforms 156 [Matt Caswell and Richard Levitte] 157 158 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 159 160 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 161 message can cause a segmentation fault in OpenSSL due to a NULL pointer 162 dereference. This could lead to a Denial Of Service attack. Thanks to 163 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 164 (CVE-2014-3571) 165 [Steve Henson] 166 167 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 168 dtls1_buffer_record function under certain conditions. In particular this 169 could occur if an attacker sent repeated DTLS records with the same 170 sequence number but for the next epoch. The memory leak could be exploited 171 by an attacker in a Denial of Service attack through memory exhaustion. 172 Thanks to Chris Mueller for reporting this issue. 173 (CVE-2015-0206) 174 [Matt Caswell] 175 176 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 177 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 178 method would be set to NULL which could later result in a NULL pointer 179 dereference. Thanks to Frank Schmirler for reporting this issue. 180 (CVE-2014-3569) 181 [Kurt Roeckx] 182 183 *) Abort handshake if server key exchange message is omitted for ephemeral 184 ECDH ciphersuites. 185 186 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 187 reporting this issue. 188 (CVE-2014-3572) 189 [Steve Henson] 190 191 *) Remove non-export ephemeral RSA code on client and server. This code 192 violated the TLS standard by allowing the use of temporary RSA keys in 193 non-export ciphersuites and could be used by a server to effectively 194 downgrade the RSA key length used to a value smaller than the server 195 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 196 INRIA or reporting this issue. 197 (CVE-2015-0204) 198 [Steve Henson] 199 200 *) Fixed issue where DH client certificates are accepted without verification. 201 An OpenSSL server will accept a DH certificate for client authentication 202 without the certificate verify message. This effectively allows a client to 203 authenticate without the use of a private key. This only affects servers 204 which trust a client certificate authority which issues certificates 205 containing DH keys: these are extremely rare and hardly ever encountered. 206 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 207 this issue. 208 (CVE-2015-0205) 209 [Steve Henson] 210 211 *) Ensure that the session ID context of an SSL is updated when its 212 SSL_CTX is updated via SSL_set_SSL_CTX. 213 214 The session ID context is typically set from the parent SSL_CTX, 215 and can vary with the CTX. 216 [Adam Langley] 217 218 *) Fix various certificate fingerprint issues. 219 220 By using non-DER or invalid encodings outside the signed portion of a 221 certificate the fingerprint can be changed without breaking the signature. 222 Although no details of the signed portion of the certificate can be changed 223 this can cause problems with some applications: e.g. those using the 224 certificate fingerprint for blacklists. 225 226 1. Reject signatures with non zero unused bits. 227 228 If the BIT STRING containing the signature has non zero unused bits reject 229 the signature. All current signature algorithms require zero unused bits. 230 231 2. Check certificate algorithm consistency. 232 233 Check the AlgorithmIdentifier inside TBS matches the one in the 234 certificate signature. NB: this will result in signature failure 235 errors for some broken certificates. 236 237 Thanks to Konrad Kraszewski from Google for reporting this issue. 238 239 3. Check DSA/ECDSA signatures use DER. 240 241 Reencode DSA/ECDSA signatures and compare with the original received 242 signature. Return an error if there is a mismatch. 243 244 This will reject various cases including garbage after signature 245 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 246 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 247 (negative or with leading zeroes). 248 249 Further analysis was conducted and fixes were developed by Stephen Henson 250 of the OpenSSL core team. 251 252 (CVE-2014-8275) 253 [Steve Henson] 254 255 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 256 results on some platforms, including x86_64. This bug occurs at random 257 with a very low probability, and is not known to be exploitable in any 258 way, though its exact impact is difficult to determine. Thanks to Pieter 259 Wuille (Blockstream) who reported this issue and also suggested an initial 260 fix. Further analysis was conducted by the OpenSSL development team and 261 Adam Langley of Google. The final fix was developed by Andy Polyakov of 262 the OpenSSL core team. 263 (CVE-2014-3570) 264 [Andy Polyakov] 265 266 *) Do not resume sessions on the server if the negotiated protocol 267 version does not match the session's version. Resuming with a different 268 version, while not strictly forbidden by the RFC, is of questionable 269 sanity and breaks all known clients. 270 [David Benjamin, Emilia K�sper] 271 272 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 273 early CCS messages during renegotiation. (Note that because 274 renegotiation is encrypted, this early CCS was not exploitable.) 275 [Emilia K�sper] 276 277 *) Tighten client-side session ticket handling during renegotiation: 278 ensure that the client only accepts a session ticket if the server sends 279 the extension anew in the ServerHello. Previously, a TLS client would 280 reuse the old extension state and thus accept a session ticket if one was 281 announced in the initial ServerHello. 282 283 Similarly, ensure that the client requires a session ticket if one 284 was advertised in the ServerHello. Previously, a TLS client would 285 ignore a missing NewSessionTicket message. 286 [Emilia K�sper] 287 288 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 289 290 *) SRTP Memory Leak. 291 292 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 293 sends a carefully crafted handshake message, to cause OpenSSL to fail 294 to free up to 64k of memory causing a memory leak. This could be 295 exploited in a Denial Of Service attack. This issue affects OpenSSL 296 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 297 whether SRTP is used or configured. Implementations of OpenSSL that 298 have been compiled with OPENSSL_NO_SRTP defined are not affected. 299 300 The fix was developed by the OpenSSL team. 301 (CVE-2014-3513) 302 [OpenSSL team] 303 304 *) Session Ticket Memory Leak. 305 306 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 307 integrity of that ticket is first verified. In the event of a session 308 ticket integrity check failing, OpenSSL will fail to free memory 309 causing a memory leak. By sending a large number of invalid session 310 tickets an attacker could exploit this issue in a Denial Of Service 311 attack. 312 (CVE-2014-3567) 313 [Steve Henson] 314 315 *) Build option no-ssl3 is incomplete. 316 317 When OpenSSL is configured with "no-ssl3" as a build option, servers 318 could accept and complete a SSL 3.0 handshake, and clients could be 319 configured to send them. 320 (CVE-2014-3568) 321 [Akamai and the OpenSSL team] 322 323 *) Add support for TLS_FALLBACK_SCSV. 324 Client applications doing fallback retries should call 325 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 326 (CVE-2014-3566) 327 [Adam Langley, Bodo Moeller] 328 329 *) Add additional DigestInfo checks. 330 331 Reencode DigestInto in DER and check against the original when 332 verifying RSA signature: this will reject any improperly encoded 333 DigestInfo structures. 334 335 Note: this is a precautionary measure and no attacks are currently known. 336 337 [Steve Henson] 338 339 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 340 341 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 342 SRP code can be overrun an internal buffer. Add sanity check that 343 g, A, B < N to SRP code. 344 345 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 346 Group for discovering this issue. 347 (CVE-2014-3512) 348 [Steve Henson] 349 350 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 351 TLS 1.0 instead of higher protocol versions when the ClientHello message 352 is badly fragmented. This allows a man-in-the-middle attacker to force a 353 downgrade to TLS 1.0 even if both the server and the client support a 354 higher protocol version, by modifying the client's TLS records. 355 356 Thanks to David Benjamin and Adam Langley (Google) for discovering and 357 researching this issue. 358 (CVE-2014-3511) 359 [David Benjamin] 360 361 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 362 to a denial of service attack. A malicious server can crash the client 363 with a null pointer dereference (read) by specifying an anonymous (EC)DH 364 ciphersuite and sending carefully crafted handshake messages. 365 366 Thanks to Felix Gr�bert (Google) for discovering and researching this 367 issue. 368 (CVE-2014-3510) 369 [Emilia K�sper] 370 371 *) By sending carefully crafted DTLS packets an attacker could cause openssl 372 to leak memory. This can be exploited through a Denial of Service attack. 373 Thanks to Adam Langley for discovering and researching this issue. 374 (CVE-2014-3507) 375 [Adam Langley] 376 377 *) An attacker can force openssl to consume large amounts of memory whilst 378 processing DTLS handshake messages. This can be exploited through a 379 Denial of Service attack. 380 Thanks to Adam Langley for discovering and researching this issue. 381 (CVE-2014-3506) 382 [Adam Langley] 383 384 *) An attacker can force an error condition which causes openssl to crash 385 whilst processing DTLS packets due to memory being freed twice. This 386 can be exploited through a Denial of Service attack. 387 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 388 this issue. 389 (CVE-2014-3505) 390 [Adam Langley] 391 392 *) If a multithreaded client connects to a malicious server using a resumed 393 session and the server sends an ec point format extension it could write 394 up to 255 bytes to freed memory. 395 396 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 397 issue. 398 (CVE-2014-3509) 399 [Gabor Tyukasz] 400 401 *) A malicious server can crash an OpenSSL client with a null pointer 402 dereference (read) by specifying an SRP ciphersuite even though it was not 403 properly negotiated with the client. This can be exploited through a 404 Denial of Service attack. 405 406 Thanks to Joonas Kuorilehto and Riku Hietam�ki (Codenomicon) for 407 discovering and researching this issue. 408 (CVE-2014-5139) 409 [Steve Henson] 410 411 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 412 X509_name_oneline, X509_name_print_ex et al. to leak some information 413 from the stack. Applications may be affected if they echo pretty printing 414 output to the attacker. 415 416 Thanks to Ivan Fratric (Google) for discovering this issue. 417 (CVE-2014-3508) 418 [Emilia K�sper, and Steve Henson] 419 420 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 421 for corner cases. (Certain input points at infinity could lead to 422 bogus results, with non-infinity inputs mapped to infinity too.) 423 [Bodo Moeller] 424 425 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 426 427 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 428 handshake can force the use of weak keying material in OpenSSL 429 SSL/TLS clients and servers. 430 431 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 432 researching this issue. (CVE-2014-0224) 433 [KIKUCHI Masashi, Steve Henson] 434 435 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 436 OpenSSL DTLS client the code can be made to recurse eventually crashing 437 in a DoS attack. 438 439 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 440 (CVE-2014-0221) 441 [Imre Rad, Steve Henson] 442 443 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 444 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 445 client or server. This is potentially exploitable to run arbitrary 446 code on a vulnerable client or server. 447 448 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 449 [J�ri Aedla, Steve Henson] 450 451 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 452 are subject to a denial of service attack. 453 454 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 455 this issue. (CVE-2014-3470) 456 [Felix Gr�bert, Ivan Fratric, Steve Henson] 457 458 *) Harmonize version and its documentation. -f flag is used to display 459 compilation flags. 460 [mancha <mancha1@zoho.com>] 461 462 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 463 in i2d_ECPrivateKey. 464 [mancha <mancha1@zoho.com>] 465 466 *) Fix some double frees. These are not thought to be exploitable. 467 [mancha <mancha1@zoho.com>] 468 469 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 470 471 *) A missing bounds check in the handling of the TLS heartbeat extension 472 can be used to reveal up to 64k of memory to a connected client or 473 server. 474 475 Thanks for Neel Mehta of Google Security for discovering this bug and to 476 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 477 preparing the fix (CVE-2014-0160) 478 [Adam Langley, Bodo Moeller] 479 480 *) Fix for the attack described in the paper "Recovering OpenSSL 481 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 482 by Yuval Yarom and Naomi Benger. Details can be obtained from: 483 http://eprint.iacr.org/2014/140 484 485 Thanks to Yuval Yarom and Naomi Benger for discovering this 486 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 487 [Yuval Yarom and Naomi Benger] 488 489 *) TLS pad extension: draft-agl-tls-padding-03 490 491 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 492 TLS client Hello record length value would otherwise be > 255 and 493 less that 512 pad with a dummy extension containing zeroes so it 494 is at least 512 bytes long. 495 496 [Adam Langley, Steve Henson] 497 498 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 499 500 *) Fix for TLS record tampering bug. A carefully crafted invalid 501 handshake could crash OpenSSL with a NULL pointer exception. 502 Thanks to Anton Johansson for reporting this issues. 503 (CVE-2013-4353) 504 505 *) Keep original DTLS digest and encryption contexts in retransmission 506 structures so we can use the previous session parameters if they need 507 to be resent. (CVE-2013-6450) 508 [Steve Henson] 509 510 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 511 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 512 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 513 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 514 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 515 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 516 [Rob Stradling, Adam Langley] 517 518 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 519 520 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 521 supporting platforms or when small records were transferred. 522 [Andy Polyakov, Steve Henson] 523 524 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 525 526 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 527 528 This addresses the flaw in CBC record processing discovered by 529 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 530 at: http://www.isg.rhul.ac.uk/tls/ 531 532 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 533 Security Group at Royal Holloway, University of London 534 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 535 Emilia K�sper for the initial patch. 536 (CVE-2013-0169) 537 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 538 539 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 540 ciphersuites which can be exploited in a denial of service attack. 541 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 542 and detecting this bug and to Wolfgang Ettlinger 543 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 544 (CVE-2012-2686) 545 [Adam Langley] 546 547 *) Return an error when checking OCSP signatures when key is NULL. 548 This fixes a DoS attack. (CVE-2013-0166) 549 [Steve Henson] 550 551 *) Make openssl verify return errors. 552 [Chris Palmer <palmer@google.com> and Ben Laurie] 553 554 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 555 the right response is stapled. Also change SSL_get_certificate() 556 so it returns the certificate actually sent. 557 See http://rt.openssl.org/Ticket/Display.html?id=2836. 558 [Rob Stradling <rob.stradling@comodo.com>] 559 560 *) Fix possible deadlock when decoding public keys. 561 [Steve Henson] 562 563 *) Don't use TLS 1.0 record version number in initial client hello 564 if renegotiating. 565 [Steve Henson] 566 567 Changes between 1.0.1b and 1.0.1c [10 May 2012] 568 569 *) Sanity check record length before skipping explicit IV in TLS 570 1.2, 1.1 and DTLS to fix DoS attack. 571 572 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 573 fuzzing as a service testing platform. 574 (CVE-2012-2333) 575 [Steve Henson] 576 577 *) Initialise tkeylen properly when encrypting CMS messages. 578 Thanks to Solar Designer of Openwall for reporting this issue. 579 [Steve Henson] 580 581 *) In FIPS mode don't try to use composite ciphers as they are not 582 approved. 583 [Steve Henson] 584 585 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 586 587 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 588 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 589 mean any application compiled against OpenSSL 1.0.0 headers setting 590 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 591 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 592 0x10000000L Any application which was previously compiled against 593 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 594 will need to be recompiled as a result. Letting be results in 595 inability to disable specifically TLS 1.1 and in client context, 596 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 597 [Steve Henson] 598 599 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 600 disable just protocol X, but all protocols above X *if* there are 601 protocols *below* X still enabled. In more practical terms it means 602 that if application wants to disable TLS1.0 in favor of TLS1.1 and 603 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 604 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 605 client side. 606 [Andy Polyakov] 607 608 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 609 610 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 611 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 612 in CRYPTO_realloc_clean. 613 614 Thanks to Tavis Ormandy, Google Security Team, for discovering this 615 issue and to Adam Langley <agl@chromium.org> for fixing it. 616 (CVE-2012-2110) 617 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 618 619 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 620 [Adam Langley] 621 622 *) Workarounds for some broken servers that "hang" if a client hello 623 record length exceeds 255 bytes. 624 625 1. Do not use record version number > TLS 1.0 in initial client 626 hello: some (but not all) hanging servers will now work. 627 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 628 the number of ciphers sent in the client hello. This should be 629 set to an even number, such as 50, for example by passing: 630 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 631 Most broken servers should now work. 632 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 633 TLS 1.2 client support entirely. 634 [Steve Henson] 635 636 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 637 [Andy Polyakov] 638 639 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 640 641 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 642 STRING form instead of a DigestInfo. 643 [Steve Henson] 644 645 *) The format used for MDC2 RSA signatures is inconsistent between EVP 646 and the RSA_sign/RSA_verify functions. This was made more apparent when 647 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 648 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 649 the correct format in RSA_verify so both forms transparently work. 650 [Steve Henson] 651 652 *) Some servers which support TLS 1.0 can choke if we initially indicate 653 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 654 encrypted premaster secret. As a workaround use the maximum pemitted 655 client version in client hello, this should keep such servers happy 656 and still work with previous versions of OpenSSL. 657 [Steve Henson] 658 659 *) Add support for TLS/DTLS heartbeats. 660 [Robin Seggelmann <seggelmann@fh-muenster.de>] 661 662 *) Add support for SCTP. 663 [Robin Seggelmann <seggelmann@fh-muenster.de>] 664 665 *) Improved PRNG seeding for VOS. 666 [Paul Green <Paul.Green@stratus.com>] 667 668 *) Extensive assembler packs updates, most notably: 669 670 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 671 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 672 - x86_64: bit-sliced AES implementation; 673 - ARM: NEON support, contemporary platforms optimizations; 674 - s390x: z196 support; 675 - *: GHASH and GF(2^m) multiplication implementations; 676 677 [Andy Polyakov] 678 679 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 680 (removal of unnecessary code) 681 [Peter Sylvester <peter.sylvester@edelweb.fr>] 682 683 *) Add TLS key material exporter from RFC 5705. 684 [Eric Rescorla] 685 686 *) Add DTLS-SRTP negotiation from RFC 5764. 687 [Eric Rescorla] 688 689 *) Add Next Protocol Negotiation, 690 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 691 disabled with a no-npn flag to config or Configure. Code donated 692 by Google. 693 [Adam Langley <agl@google.com> and Ben Laurie] 694 695 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 696 NIST-P256, NIST-P521, with constant-time single point multiplication on 697 typical inputs. Compiler support for the nonstandard type __uint128_t is 698 required to use this (present in gcc 4.4 and later, for 64-bit builds). 699 Code made available under Apache License version 2.0. 700 701 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 702 line to include this in your build of OpenSSL, and run "make depend" (or 703 "make update"). This enables the following EC_METHODs: 704 705 EC_GFp_nistp224_method() 706 EC_GFp_nistp256_method() 707 EC_GFp_nistp521_method() 708 709 EC_GROUP_new_by_curve_name() will automatically use these (while 710 EC_GROUP_new_curve_GFp() currently prefers the more flexible 711 implementations). 712 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 713 714 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 715 all platforms. Move ssize_t definition from e_os.h to the public 716 header file e_os2.h as it now appears in public header file cms.h 717 [Steve Henson] 718 719 *) New -sigopt option to the ca, req and x509 utilities. Additional 720 signature parameters can be passed using this option and in 721 particular PSS. 722 [Steve Henson] 723 724 *) Add RSA PSS signing function. This will generate and set the 725 appropriate AlgorithmIdentifiers for PSS based on those in the 726 corresponding EVP_MD_CTX structure. No application support yet. 727 [Steve Henson] 728 729 *) Support for companion algorithm specific ASN1 signing routines. 730 New function ASN1_item_sign_ctx() signs a pre-initialised 731 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 732 the appropriate parameters. 733 [Steve Henson] 734 735 *) Add new algorithm specific ASN1 verification initialisation function 736 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 737 handling will be the same no matter what EVP_PKEY_METHOD is used. 738 Add a PSS handler to support verification of PSS signatures: checked 739 against a number of sample certificates. 740 [Steve Henson] 741 742 *) Add signature printing for PSS. Add PSS OIDs. 743 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 744 745 *) Add algorithm specific signature printing. An individual ASN1 method 746 can now print out signatures instead of the standard hex dump. 747 748 More complex signatures (e.g. PSS) can print out more meaningful 749 information. Include DSA version that prints out the signature 750 parameters r, s. 751 [Steve Henson] 752 753 *) Password based recipient info support for CMS library: implementing 754 RFC3211. 755 [Steve Henson] 756 757 *) Split password based encryption into PBES2 and PBKDF2 functions. This 758 neatly separates the code into cipher and PBE sections and is required 759 for some algorithms that split PBES2 into separate pieces (such as 760 password based CMS). 761 [Steve Henson] 762 763 *) Session-handling fixes: 764 - Fix handling of connections that are resuming with a session ID, 765 but also support Session Tickets. 766 - Fix a bug that suppressed issuing of a new ticket if the client 767 presented a ticket with an expired session. 768 - Try to set the ticket lifetime hint to something reasonable. 769 - Make tickets shorter by excluding irrelevant information. 770 - On the client side, don't ignore renewed tickets. 771 [Adam Langley, Bodo Moeller (Google)] 772 773 *) Fix PSK session representation. 774 [Bodo Moeller] 775 776 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 777 778 This work was sponsored by Intel. 779 [Andy Polyakov] 780 781 *) Add GCM support to TLS library. Some custom code is needed to split 782 the IV between the fixed (from PRF) and explicit (from TLS record) 783 portions. This adds all GCM ciphersuites supported by RFC5288 and 784 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 785 add a special AESGCM string for GCM only. 786 [Steve Henson] 787 788 *) Expand range of ctrls for AES GCM. Permit setting invocation 789 field on decrypt and retrieval of invocation field only on encrypt. 790 [Steve Henson] 791 792 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 793 As required by RFC5289 these ciphersuites cannot be used if for 794 versions of TLS earlier than 1.2. 795 [Steve Henson] 796 797 *) For FIPS capable OpenSSL interpret a NULL default public key method 798 as unset and return the appopriate default but do *not* set the default. 799 This means we can return the appopriate method in applications that 800 swicth between FIPS and non-FIPS modes. 801 [Steve Henson] 802 803 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 804 ENGINE is used then we cannot handle that in the FIPS module so we 805 keep original code iff non-FIPS operations are allowed. 806 [Steve Henson] 807 808 *) Add -attime option to openssl utilities. 809 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 810 811 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 812 [Steve Henson] 813 814 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 815 FIPS EC methods unconditionally for now. 816 [Steve Henson] 817 818 *) New build option no-ec2m to disable characteristic 2 code. 819 [Steve Henson] 820 821 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 822 all cases can be covered as some introduce binary incompatibilities. 823 [Steve Henson] 824 825 *) Redirect RSA operations to FIPS module including keygen, 826 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 827 [Steve Henson] 828 829 *) Add similar low level API blocking to ciphers. 830 [Steve Henson] 831 832 *) Low level digest APIs are not approved in FIPS mode: any attempt 833 to use these will cause a fatal error. Applications that *really* want 834 to use them can use the private_* version instead. 835 [Steve Henson] 836 837 *) Redirect cipher operations to FIPS module for FIPS builds. 838 [Steve Henson] 839 840 *) Redirect digest operations to FIPS module for FIPS builds. 841 [Steve Henson] 842 843 *) Update build system to add "fips" flag which will link in fipscanister.o 844 for static and shared library builds embedding a signature if needed. 845 [Steve Henson] 846 847 *) Output TLS supported curves in preference order instead of numerical 848 order. This is currently hardcoded for the highest order curves first. 849 This should be configurable so applications can judge speed vs strength. 850 [Steve Henson] 851 852 *) Add TLS v1.2 server support for client authentication. 853 [Steve Henson] 854 855 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 856 and enable MD5. 857 [Steve Henson] 858 859 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 860 FIPS modules versions. 861 [Steve Henson] 862 863 *) Add TLS v1.2 client side support for client authentication. Keep cache 864 of handshake records longer as we don't know the hash algorithm to use 865 until after the certificate request message is received. 866 [Steve Henson] 867 868 *) Initial TLS v1.2 client support. Add a default signature algorithms 869 extension including all the algorithms we support. Parse new signature 870 format in client key exchange. Relax some ECC signing restrictions for 871 TLS v1.2 as indicated in RFC5246. 872 [Steve Henson] 873 874 *) Add server support for TLS v1.2 signature algorithms extension. Switch 875 to new signature format when needed using client digest preference. 876 All server ciphersuites should now work correctly in TLS v1.2. No client 877 support yet and no support for client certificates. 878 [Steve Henson] 879 880 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 881 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 882 ciphersuites. At present only RSA key exchange ciphersuites work with 883 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 884 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 885 and version checking. 886 [Steve Henson] 887 888 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 889 with this defined it will not be affected by any changes to ssl internal 890 structures. Add several utility functions to allow openssl application 891 to work with OPENSSL_NO_SSL_INTERN defined. 892 [Steve Henson] 893 894 *) Add SRP support. 895 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 896 897 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 898 [Steve Henson] 899 900 *) Permit abbreviated handshakes when renegotiating using the function 901 SSL_renegotiate_abbreviated(). 902 [Robin Seggelmann <seggelmann@fh-muenster.de>] 903 904 *) Add call to ENGINE_register_all_complete() to 905 ENGINE_load_builtin_engines(), so some implementations get used 906 automatically instead of needing explicit application support. 907 [Steve Henson] 908 909 *) Add support for TLS key exporter as described in RFC5705. 910 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 911 912 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 913 a few changes are required: 914 915 Add SSL_OP_NO_TLSv1_1 flag. 916 Add TLSv1_1 methods. 917 Update version checking logic to handle version 1.1. 918 Add explicit IV handling (ported from DTLS code). 919 Add command line options to s_client/s_server. 920 [Steve Henson] 921 922 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 923 924 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 925 in CMS and PKCS7 code. When RSA decryption fails use a random key for 926 content decryption and always return the same error. Note: this attack 927 needs on average 2^20 messages so it only affects automated senders. The 928 old behaviour can be reenabled in the CMS code by setting the 929 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 930 an MMA defence is not necessary. 931 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 932 this issue. (CVE-2012-0884) 933 [Steve Henson] 934 935 *) Fix CVE-2011-4619: make sure we really are receiving a 936 client hello before rejecting multiple SGC restarts. Thanks to 937 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 938 [Steve Henson] 939 940 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 941 942 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 943 Thanks to Antonio Martin, Enterprise Secure Access Research and 944 Development, Cisco Systems, Inc. for discovering this bug and 945 preparing a fix. (CVE-2012-0050) 946 [Antonio Martin] 947 948 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 949 950 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 951 of the Vaudenay padding oracle attack on CBC mode encryption 952 which enables an efficient plaintext recovery attack against 953 the OpenSSL implementation of DTLS. Their attack exploits timing 954 differences arising during decryption processing. A research 955 paper describing this attack can be found at: 956 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 957 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 958 Security Group at Royal Holloway, University of London 959 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 960 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 961 for preparing the fix. (CVE-2011-4108) 962 [Robin Seggelmann, Michael Tuexen] 963 964 *) Clear bytes used for block padding of SSL 3.0 records. 965 (CVE-2011-4576) 966 [Adam Langley (Google)] 967 968 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 969 Kadianakis <desnacked@gmail.com> for discovering this issue and 970 Adam Langley for preparing the fix. (CVE-2011-4619) 971 [Adam Langley (Google)] 972 973 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 974 [Andrey Kulikov <amdeich@gmail.com>] 975 976 *) Prevent malformed RFC3779 data triggering an assertion failure. 977 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 978 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 979 [Rob Austein <sra@hactrn.net>] 980 981 *) Improved PRNG seeding for VOS. 982 [Paul Green <Paul.Green@stratus.com>] 983 984 *) Fix ssl_ciph.c set-up race. 985 [Adam Langley (Google)] 986 987 *) Fix spurious failures in ecdsatest.c. 988 [Emilia K�sper (Google)] 989 990 *) Fix the BIO_f_buffer() implementation (which was mixing different 991 interpretations of the '..._len' fields). 992 [Adam Langley (Google)] 993 994 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 995 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 996 threads won't reuse the same blinding coefficients. 997 998 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 999 lock to call BN_BLINDING_invert_ex, and avoids one use of 1000 BN_BLINDING_update for each BN_BLINDING structure (previously, 1001 the last update always remained unused). 1002 [Emilia K�sper (Google)] 1003 1004 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 1005 [Bob Buckholz (Google)] 1006 1007 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 1008 1009 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 1010 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 1011 [Kaspar Brand <ossl@velox.ch>] 1012 1013 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1014 for multi-threaded use of ECDH. (CVE-2011-3210) 1015 [Adam Langley (Google)] 1016 1017 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1018 [Bodo Moeller] 1019 1020 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 1021 signature public key algorithm by using OID xref utilities instead. 1022 Before this you could only use some ECC ciphersuites with SHA1 only. 1023 [Steve Henson] 1024 1025 *) Add protection against ECDSA timing attacks as mentioned in the paper 1026 by Billy Bob Brumley and Nicola Tuveri, see: 1027 1028 http://eprint.iacr.org/2011/232.pdf 1029 1030 [Billy Bob Brumley and Nicola Tuveri] 1031 1032 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 1033 1034 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1035 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1036 1037 *) Fix bug in string printing code: if *any* escaping is enabled we must 1038 escape the escape character (backslash) or the resulting string is 1039 ambiguous. 1040 [Steve Henson] 1041 1042 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 1043 1044 *) Disable code workaround for ancient and obsolete Netscape browsers 1045 and servers: an attacker can use it in a ciphersuite downgrade attack. 1046 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1047 [Steve Henson] 1048 1049 *) Fixed J-PAKE implementation error, originally discovered by 1050 Sebastien Martini, further info and confirmation from Stefan 1051 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1052 [Ben Laurie] 1053 1054 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 1055 1056 *) Fix extension code to avoid race conditions which can result in a buffer 1057 overrun vulnerability: resumed sessions must not be modified as they can 1058 be shared by multiple threads. CVE-2010-3864 1059 [Steve Henson] 1060 1061 *) Fix WIN32 build system to correctly link an ENGINE directory into 1062 a DLL. 1063 [Steve Henson] 1064 1065 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 1066 1067 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 1068 (CVE-2010-1633) 1069 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 1070 1071 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 1072 1073 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 1074 context. The operation can be customised via the ctrl mechanism in 1075 case ENGINEs want to include additional functionality. 1076 [Steve Henson] 1077 1078 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 1079 [Steve Henson] 1080 1081 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 1082 output hashes compatible with older versions of OpenSSL. 1083 [Willy Weisz <weisz@vcpc.univie.ac.at>] 1084 1085 *) Fix compression algorithm handling: if resuming a session use the 1086 compression algorithm of the resumed session instead of determining 1087 it from client hello again. Don't allow server to change algorithm. 1088 [Steve Henson] 1089 1090 *) Add load_crls() function to apps tidying load_certs() too. Add option 1091 to verify utility to allow additional CRLs to be included. 1092 [Steve Henson] 1093 1094 *) Update OCSP request code to permit adding custom headers to the request: 1095 some responders need this. 1096 [Steve Henson] 1097 1098 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 1099 correctly. 1100 [Julia Lawall <julia@diku.dk>] 1101 1102 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 1103 needlessly dereferenced structures, used obsolete functions and 1104 didn't handle all updated verify codes correctly. 1105 [Steve Henson] 1106 1107 *) Disable MD2 in the default configuration. 1108 [Steve Henson] 1109 1110 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 1111 indicate the initial BIO being pushed or popped. This makes it possible 1112 to determine whether the BIO is the one explicitly called or as a result 1113 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 1114 it handles reference counts correctly and doesn't zero out the I/O bio 1115 when it is not being explicitly popped. WARNING: applications which 1116 included workarounds for the old buggy behaviour will need to be modified 1117 or they could free up already freed BIOs. 1118 [Steve Henson] 1119 1120 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 1121 renaming to all platforms (within the 0.9.8 branch, this was 1122 done conditionally on Netware platforms to avoid a name clash). 1123 [Guenter <lists@gknw.net>] 1124 1125 *) Add ECDHE and PSK support to DTLS. 1126 [Michael Tuexen <tuexen@fh-muenster.de>] 1127 1128 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 1129 be used on C++. 1130 [Steve Henson] 1131 1132 *) Add "missing" function EVP_MD_flags() (without this the only way to 1133 retrieve a digest flags is by accessing the structure directly. Update 1134 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 1135 or cipher is registered as in the "from" argument. Print out all 1136 registered digests in the dgst usage message instead of manually 1137 attempting to work them out. 1138 [Steve Henson] 1139 1140 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 1141 this allows the use of compression and extensions. Change default cipher 1142 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 1143 by default unless an application cipher string requests it. 1144 [Steve Henson] 1145 1146 *) Alter match criteria in PKCS12_parse(). It used to try to use local 1147 key ids to find matching certificates and keys but some PKCS#12 files 1148 don't follow the (somewhat unwritten) rules and this strategy fails. 1149 Now just gather all certificates together and the first private key 1150 then look for the first certificate that matches the key. 1151 [Steve Henson] 1152 1153 *) Support use of registered digest and cipher names for dgst and cipher 1154 commands instead of having to add each one as a special case. So now 1155 you can do: 1156 1157 openssl sha256 foo 1158 1159 as well as: 1160 1161 openssl dgst -sha256 foo 1162 1163 and this works for ENGINE based algorithms too. 1164 1165 [Steve Henson] 1166 1167 *) Update Gost ENGINE to support parameter files. 1168 [Victor B. Wagner <vitus@cryptocom.ru>] 1169 1170 *) Support GeneralizedTime in ca utility. 1171 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 1172 1173 *) Enhance the hash format used for certificate directory links. The new 1174 form uses the canonical encoding (meaning equivalent names will work 1175 even if they aren't identical) and uses SHA1 instead of MD5. This form 1176 is incompatible with the older format and as a result c_rehash should 1177 be used to rebuild symbolic links. 1178 [Steve Henson] 1179 1180 *) Make PKCS#8 the default write format for private keys, replacing the 1181 traditional format. This form is standardised, more secure and doesn't 1182 include an implicit MD5 dependency. 1183 [Steve Henson] 1184 1185 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 1186 committed to OpenSSL should pass this lot as a minimum. 1187 [Steve Henson] 1188 1189 *) Add session ticket override functionality for use by EAP-FAST. 1190 [Jouni Malinen <j@w1.fi>] 1191 1192 *) Modify HMAC functions to return a value. Since these can be implemented 1193 in an ENGINE errors can occur. 1194 [Steve Henson] 1195 1196 *) Type-checked OBJ_bsearch_ex. 1197 [Ben Laurie] 1198 1199 *) Type-checked OBJ_bsearch. Also some constification necessitated 1200 by type-checking. Still to come: TXT_DB, bsearch(?), 1201 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 1202 CONF_VALUE. 1203 [Ben Laurie] 1204 1205 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 1206 seconds to a tm structure directly, instead of going through OS 1207 specific date routines. This avoids any issues with OS routines such 1208 as the year 2038 bug. New *_adj() functions for ASN1 time structures 1209 and X509_time_adj_ex() to cover the extended range. The existing 1210 X509_time_adj() is still usable and will no longer have any date issues. 1211 [Steve Henson] 1212 1213 *) Delta CRL support. New use deltas option which will attempt to locate 1214 and search any appropriate delta CRLs available. 1215 1216 This work was sponsored by Google. 1217 [Steve Henson] 1218 1219 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 1220 code and add additional score elements. Validate alternate CRL paths 1221 as part of the CRL checking and indicate a new error "CRL path validation 1222 error" in this case. Applications wanting additional details can use 1223 the verify callback and check the new "parent" field. If this is not 1224 NULL CRL path validation is taking place. Existing applications wont 1225 see this because it requires extended CRL support which is off by 1226 default. 1227 1228 This work was sponsored by Google. 1229 [Steve Henson] 1230 1231 *) Support for freshest CRL extension. 1232 1233 This work was sponsored by Google. 1234 [Steve Henson] 1235 1236 *) Initial indirect CRL support. Currently only supported in the CRLs 1237 passed directly and not via lookup. Process certificate issuer 1238 CRL entry extension and lookup CRL entries by bother issuer name 1239 and serial number. Check and process CRL issuer entry in IDP extension. 1240 1241 This work was sponsored by Google. 1242 [Steve Henson] 1243 1244 *) Add support for distinct certificate and CRL paths. The CRL issuer 1245 certificate is validated separately in this case. Only enabled if 1246 an extended CRL support flag is set: this flag will enable additional 1247 CRL functionality in future. 1248 1249 This work was sponsored by Google. 1250 [Steve Henson] 1251 1252 *) Add support for policy mappings extension. 1253 1254 This work was sponsored by Google. 1255 [Steve Henson] 1256 1257 *) Fixes to pathlength constraint, self issued certificate handling, 1258 policy processing to align with RFC3280 and PKITS tests. 1259 1260 This work was sponsored by Google. 1261 [Steve Henson] 1262 1263 *) Support for name constraints certificate extension. DN, email, DNS 1264 and URI types are currently supported. 1265 1266 This work was sponsored by Google. 1267 [Steve Henson] 1268 1269 *) To cater for systems that provide a pointer-based thread ID rather 1270 than numeric, deprecate the current numeric thread ID mechanism and 1271 replace it with a structure and associated callback type. This 1272 mechanism allows a numeric "hash" to be extracted from a thread ID in 1273 either case, and on platforms where pointers are larger than 'long', 1274 mixing is done to help ensure the numeric 'hash' is usable even if it 1275 can't be guaranteed unique. The default mechanism is to use "&errno" 1276 as a pointer-based thread ID to distinguish between threads. 1277 1278 Applications that want to provide their own thread IDs should now use 1279 CRYPTO_THREADID_set_callback() to register a callback that will call 1280 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 1281 1282 Note that ERR_remove_state() is now deprecated, because it is tied 1283 to the assumption that thread IDs are numeric. ERR_remove_state(0) 1284 to free the current thread's error state should be replaced by 1285 ERR_remove_thread_state(NULL). 1286 1287 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 1288 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 1289 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 1290 application was previously providing a numeric thread callback that 1291 was inappropriate for distinguishing threads, then uniqueness might 1292 have been obtained with &errno that happened immediately in the 1293 intermediate development versions of OpenSSL; this is no longer the 1294 case, the numeric thread callback will now override the automatic use 1295 of &errno.) 1296 [Geoff Thorpe, with help from Bodo Moeller] 1297 1298 *) Initial support for different CRL issuing certificates. This covers a 1299 simple case where the self issued certificates in the chain exist and 1300 the real CRL issuer is higher in the existing chain. 1301 1302 This work was sponsored by Google. 1303 [Steve Henson] 1304 1305 *) Removed effectively defunct crypto/store from the build. 1306 [Ben Laurie] 1307 1308 *) Revamp of STACK to provide stronger type-checking. Still to come: 1309 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 1310 ASN1_STRING, CONF_VALUE. 1311 [Ben Laurie] 1312 1313 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 1314 RAM on SSL connections. This option can save about 34k per idle SSL. 1315 [Nick Mathewson] 1316 1317 *) Revamp of LHASH to provide stronger type-checking. Still to come: 1318 STACK, TXT_DB, bsearch, qsort. 1319 [Ben Laurie] 1320 1321 *) Initial support for Cryptographic Message Syntax (aka CMS) based 1322 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 1323 support for data, signedData, compressedData, digestedData and 1324 encryptedData, envelopedData types included. Scripts to check against 1325 RFC4134 examples draft and interop and consistency checks of many 1326 content types and variants. 1327 [Steve Henson] 1328 1329 *) Add options to enc utility to support use of zlib compression BIO. 1330 [Steve Henson] 1331 1332 *) Extend mk1mf to support importing of options and assembly language 1333 files from Configure script, currently only included in VC-WIN32. 1334 The assembly language rules can now optionally generate the source 1335 files from the associated perl scripts. 1336 [Steve Henson] 1337 1338 *) Implement remaining functionality needed to support GOST ciphersuites. 1339 Interop testing has been performed using CryptoPro implementations. 1340 [Victor B. Wagner <vitus@cryptocom.ru>] 1341 1342 *) s390x assembler pack. 1343 [Andy Polyakov] 1344 1345 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 1346 "family." 1347 [Andy Polyakov] 1348 1349 *) Implement Opaque PRF Input TLS extension as specified in 1350 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 1351 official specification yet and no extension type assignment by 1352 IANA exists, this extension (for now) will have to be explicitly 1353 enabled when building OpenSSL by providing the extension number 1354 to use. For example, specify an option 1355 1356 -DTLSEXT_TYPE_opaque_prf_input=0x9527 1357 1358 to the "config" or "Configure" script to enable the extension, 1359 assuming extension number 0x9527 (which is a completely arbitrary 1360 and unofficial assignment based on the MD5 hash of the Internet 1361 Draft). Note that by doing so, you potentially lose 1362 interoperability with other TLS implementations since these might 1363 be using the same extension number for other purposes. 1364 1365 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1366 opaque PRF input value to use in the handshake. This will create 1367 an interal copy of the length-'len' string at 'src', and will 1368 return non-zero for success. 1369 1370 To get more control and flexibility, provide a callback function 1371 by using 1372 1373 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1374 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1375 1376 where 1377 1378 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1379 void *arg; 1380 1381 Callback function 'cb' will be called in handshakes, and is 1382 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1383 Argument 'arg' is for application purposes (the value as given to 1384 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1385 be provided to the callback function). The callback function 1386 has to return non-zero to report success: usually 1 to use opaque 1387 PRF input just if possible, or 2 to enforce use of the opaque PRF 1388 input. In the latter case, the library will abort the handshake 1389 if opaque PRF input is not successfully negotiated. 1390 1391 Arguments 'peerinput' and 'len' given to the callback function 1392 will always be NULL and 0 in the case of a client. A server will 1393 see the client's opaque PRF input through these variables if 1394 available (NULL and 0 otherwise). Note that if the server 1395 provides an opaque PRF input, the length must be the same as the 1396 length of the client's opaque PRF input. 1397 1398 Note that the callback function will only be called when creating 1399 a new session (session resumption can resume whatever was 1400 previously negotiated), and will not be called in SSL 2.0 1401 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1402 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1403 for applications that need to enforce opaque PRF input. 1404 1405 [Bodo Moeller] 1406 1407 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1408 MAC. 1409 1410 [Victor B. Wagner <vitus@cryptocom.ru>] 1411 1412 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1413 RFC4507bis. The encrypted ticket format is an encrypted encoded 1414 SSL_SESSION structure, that way new session features are automatically 1415 supported. 1416 1417 If a client application caches session in an SSL_SESSION structure 1418 support is transparent because tickets are now stored in the encoded 1419 SSL_SESSION. 1420 1421 The SSL_CTX structure automatically generates keys for ticket 1422 protection in servers so again support should be possible 1423 with no application modification. 1424 1425 If a client or server wishes to disable RFC4507 support then the option 1426 SSL_OP_NO_TICKET can be set. 1427 1428 Add a TLS extension debugging callback to allow the contents of any client 1429 or server extensions to be examined. 1430 1431 This work was sponsored by Google. 1432 [Steve Henson] 1433 1434 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1435 OpenSSL should now compile cleanly on gcc 4.2 1436 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1437 1438 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1439 support including streaming MAC support: this is required for GOST 1440 ciphersuite support. 1441 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1442 1443 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1444 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1445 to output in BER and PEM format. 1446 [Steve Henson] 1447 1448 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1449 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1450 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1451 ENGINE support for HMAC keys which are unextractable. New -mac and 1452 -macopt options to dgst utility. 1453 [Steve Henson] 1454 1455 *) New option -sigopt to dgst utility. Update dgst to use 1456 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1457 alternative signing paramaters such as X9.31 or PSS in the dgst 1458 utility. 1459 [Steve Henson] 1460 1461 *) Change ssl_cipher_apply_rule(), the internal function that does 1462 the work each time a ciphersuite string requests enabling 1463 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1464 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1465 the order of disabled ciphersuites such that those ciphersuites 1466 that most recently went from enabled to disabled not only stay 1467 in order with respect to each other, but also have higher priority 1468 than other disabled ciphersuites the next time ciphersuites are 1469 enabled again. 1470 1471 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1472 the same ciphersuites as with "HIGH" alone, but in a specific 1473 order where the PSK ciphersuites come first (since they are the 1474 most recently disabled ciphersuites when "HIGH" is parsed). 1475 1476 Also, change ssl_create_cipher_list() (using this new 1477 funcionality) such that between otherwise identical 1478 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1479 the default order. 1480 [Bodo Moeller] 1481 1482 *) Change ssl_create_cipher_list() so that it automatically 1483 arranges the ciphersuites in reasonable order before starting 1484 to process the rule string. Thus, the definition for "DEFAULT" 1485 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1486 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1487 This makes it much easier to arrive at a reasonable default order 1488 in applications for which anonymous ciphers are OK (meaning 1489 that you can't actually use DEFAULT). 1490 [Bodo Moeller; suggested by Victor Duchovni] 1491 1492 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1493 processing) into multiple integers instead of setting 1494 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1495 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1496 (These masks as well as the individual bit definitions are hidden 1497 away into the non-exported interface ssl/ssl_locl.h, so this 1498 change to the definition of the SSL_CIPHER structure shouldn't 1499 affect applications.) This give us more bits for each of these 1500 categories, so there is no longer a need to coagulate AES128 and 1501 AES256 into a single algorithm bit, and to coagulate Camellia128 1502 and Camellia256 into a single algorithm bit, which has led to all 1503 kinds of kludges. 1504 1505 Thus, among other things, the kludge introduced in 0.9.7m and 1506 0.9.8e for masking out AES256 independently of AES128 or masking 1507 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1508 1509 With the change, we also introduce new ciphersuite aliases that 1510 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1511 "CAMELLIA256". 1512 [Bodo Moeller] 1513 1514 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1515 Use the leftmost N bytes of the signature input if the input is 1516 larger than the prime q (with N being the size in bytes of q). 1517 [Nils Larsch] 1518 1519 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1520 it yet and it is largely untested. 1521 [Steve Henson] 1522 1523 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1524 [Nils Larsch] 1525 1526 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1527 some compilers (gcc 4.2 and later) reject their use. Safestack is 1528 reimplemented. Update ASN1 to avoid use of legacy functions. 1529 [Steve Henson] 1530 1531 *) Win32/64 targets are linked with Winsock2. 1532 [Andy Polyakov] 1533 1534 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1535 to external functions. This can be used to increase CRL handling 1536 efficiency especially when CRLs are very large by (for example) storing 1537 the CRL revoked certificates in a database. 1538 [Steve Henson] 1539 1540 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1541 new CRLs added to a directory can be used. New command line option 1542 -verify_return_error to s_client and s_server. This causes real errors 1543 to be returned by the verify callback instead of carrying on no matter 1544 what. This reflects the way a "real world" verify callback would behave. 1545 [Steve Henson] 1546 1547 *) GOST engine, supporting several GOST algorithms and public key formats. 1548 Kindly donated by Cryptocom. 1549 [Cryptocom] 1550 1551 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1552 partitioned by DP are handled but no indirect CRL or reason partitioning 1553 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1554 selected via a scoring technique which handles IDP and AKID in CRLs. 1555 [Steve Henson] 1556 1557 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1558 will ultimately be used for all verify operations: this will remove the 1559 X509_STORE dependency on certificate verification and allow alternative 1560 lookup methods. X509_STORE based implementations of these two callbacks. 1561 [Steve Henson] 1562 1563 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1564 Modify get_crl() to find a valid (unexpired) CRL if possible. 1565 [Steve Henson] 1566 1567 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1568 this would be called X509_CRL_cmp() but that name is already used by 1569 a function that just compares CRL issuer names. Cache several CRL 1570 extensions in X509_CRL structure and cache CRLDP in X509. 1571 [Steve Henson] 1572 1573 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1574 this maps equivalent X509_NAME structures into a consistent structure. 1575 Name comparison can then be performed rapidly using memcmp(). 1576 [Steve Henson] 1577 1578 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1579 utility. 1580 [Steve Henson] 1581 1582 *) Allow digests to supply their own micalg string for S/MIME type using 1583 the ctrl EVP_MD_CTRL_MICALG. 1584 [Steve Henson] 1585 1586 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1587 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1588 ctrl. It can then customise the structure before and/or after signing 1589 if necessary. 1590 [Steve Henson] 1591 1592 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1593 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1594 to free up any added signature OIDs. 1595 [Steve Henson] 1596 1597 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1598 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1599 digest and cipher tables. New options added to openssl utility: 1600 list-message-digest-algorithms and list-cipher-algorithms. 1601 [Steve Henson] 1602 1603 *) Change the array representation of binary polynomials: the list 1604 of degrees of non-zero coefficients is now terminated with -1. 1605 Previously it was terminated with 0, which was also part of the 1606 value; thus, the array representation was not applicable to 1607 polynomials where t^0 has coefficient zero. This change makes 1608 the array representation useful in a more general context. 1609 [Douglas Stebila] 1610 1611 *) Various modifications and fixes to SSL/TLS cipher string 1612 handling. For ECC, the code now distinguishes between fixed ECDH 1613 with RSA certificates on the one hand and with ECDSA certificates 1614 on the other hand, since these are separate ciphersuites. The 1615 unused code for Fortezza ciphersuites has been removed. 1616 1617 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1618 (not "ECDHE"). For consistency with the code for DH 1619 certificates, use of ECDH certificates is now considered ECDH 1620 authentication, not RSA or ECDSA authentication (the latter is 1621 merely the CA's signing algorithm and not actively used in the 1622 protocol). 1623 1624 The temporary ciphersuite alias "ECCdraft" is no longer 1625 available, and ECC ciphersuites are no longer excluded from "ALL" 1626 and "DEFAULT". The following aliases now exist for RFC 4492 1627 ciphersuites, most of these by analogy with the DH case: 1628 1629 kECDHr - ECDH cert, signed with RSA 1630 kECDHe - ECDH cert, signed with ECDSA 1631 kECDH - ECDH cert (signed with either RSA or ECDSA) 1632 kEECDH - ephemeral ECDH 1633 ECDH - ECDH cert or ephemeral ECDH 1634 1635 aECDH - ECDH cert 1636 aECDSA - ECDSA cert 1637 ECDSA - ECDSA cert 1638 1639 AECDH - anonymous ECDH 1640 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1641 1642 [Bodo Moeller] 1643 1644 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1645 Use correct micalg parameters depending on digest(s) in signed message. 1646 [Steve Henson] 1647 1648 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1649 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1650 [Steve Henson] 1651 1652 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1653 an engine to register a method. Add ENGINE lookups for methods and 1654 functional reference processing. 1655 [Steve Henson] 1656 1657 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1658 EVP_{Sign,Verify}* which allow an application to customise the signature 1659 process. 1660 [Steve Henson] 1661 1662 *) New -resign option to smime utility. This adds one or more signers 1663 to an existing PKCS#7 signedData structure. Also -md option to use an 1664 alternative message digest algorithm for signing. 1665 [Steve Henson] 1666 1667 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1668 create PKCS7 structures containing multiple signers. Update smime 1669 application to support multiple signers. 1670 [Steve Henson] 1671 1672 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1673 digest MAC. 1674 [Steve Henson] 1675 1676 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1677 Reorganize PBE internals to lookup from a static table using NIDs, 1678 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1679 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1680 PRF which will be automatically used with PBES2. 1681 [Steve Henson] 1682 1683 *) Replace the algorithm specific calls to generate keys in "req" with the 1684 new API. 1685 [Steve Henson] 1686 1687 *) Update PKCS#7 enveloped data routines to use new API. This is now 1688 supported by any public key method supporting the encrypt operation. A 1689 ctrl is added to allow the public key algorithm to examine or modify 1690 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1691 a no op. 1692 [Steve Henson] 1693 1694 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1695 a default digest type to use. In most cases this will be SHA1 but some 1696 algorithms (such as GOST) need to specify an alternative digest. The 1697 return value indicates how strong the prefernce is 1 means optional and 1698 2 is mandatory (that is it is the only supported type). Modify 1699 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1700 use the default md. Update openssl utilities to use the default digest 1701 type for signing if it is not explicitly indicated. 1702 [Steve Henson] 1703 1704 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1705 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1706 signing method from the key type. This effectively removes the link 1707 between digests and public key types. 1708 [Steve Henson] 1709 1710 *) Add an OID cross reference table and utility functions. Its purpose is to 1711 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1712 rsaEncryption. This will allow some of the algorithm specific hackery 1713 needed to use the correct OID to be removed. 1714 [Steve Henson] 1715 1716 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1717 structures for PKCS7_sign(). They are now set up by the relevant public 1718 key ASN1 method. 1719 [Steve Henson] 1720 1721 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1722 [Steve Henson] 1723 1724 *) Add support for key derivation (agreement) in the API, DH method and 1725 pkeyutl. 1726 [Steve Henson] 1727 1728 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1729 public and private key formats. As a side effect these add additional 1730 command line functionality not previously available: DSA signatures can be 1731 generated and verified using pkeyutl and DH key support and generation in 1732 pkey, genpkey. 1733 [Steve Henson] 1734 1735 *) BeOS support. 1736 [Oliver Tappe <zooey@hirschkaefer.de>] 1737 1738 *) New make target "install_html_docs" installs HTML renditions of the 1739 manual pages. 1740 [Oliver Tappe <zooey@hirschkaefer.de>] 1741 1742 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1743 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1744 support key and parameter generation and add initial key generation 1745 functionality for RSA. 1746 [Steve Henson] 1747 1748 *) Add functions for main EVP_PKEY_method operations. The undocumented 1749 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1750 EVP_PKEY_{encrypt,decrypt}_old. 1751 [Steve Henson] 1752 1753 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1754 key API, doesn't do much yet. 1755 [Steve Henson] 1756 1757 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1758 public key algorithms. New option to openssl utility: 1759 "list-public-key-algorithms" to print out info. 1760 [Steve Henson] 1761 1762 *) Implement the Supported Elliptic Curves Extension for 1763 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1764 [Douglas Stebila] 1765 1766 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1767 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1768 [Steve Henson] 1769 1770 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1771 utilities such as rsa, dsa, dsaparam etc except they process any key 1772 type. 1773 [Steve Henson] 1774 1775 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1776 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1777 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1778 structure. 1779 [Steve Henson] 1780 1781 *) Initial support for pluggable public key ASN1. 1782 De-spaghettify the public key ASN1 handling. Move public and private 1783 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1784 algorithm specific handling to a single module within the relevant 1785 algorithm directory. Add functions to allow (near) opaque processing 1786 of public and private key structures. 1787 [Steve Henson] 1788 1789 *) Implement the Supported Point Formats Extension for 1790 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1791 [Douglas Stebila] 1792 1793 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1794 for the psk identity [hint] and the psk callback functions to the 1795 SSL_SESSION, SSL and SSL_CTX structure. 1796 1797 New ciphersuites: 1798 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1799 PSK-AES256-CBC-SHA 1800 1801 New functions: 1802 SSL_CTX_use_psk_identity_hint 1803 SSL_get_psk_identity_hint 1804 SSL_get_psk_identity 1805 SSL_use_psk_identity_hint 1806 1807 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1808 1809 *) Add RFC 3161 compliant time stamp request creation, response generation 1810 and response verification functionality. 1811 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1812 1813 *) Add initial support for TLS extensions, specifically for the server_name 1814 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1815 have new members for a host name. The SSL data structure has an 1816 additional member SSL_CTX *initial_ctx so that new sessions can be 1817 stored in that context to allow for session resumption, even after the 1818 SSL has been switched to a new SSL_CTX in reaction to a client's 1819 server_name extension. 1820 1821 New functions (subject to change): 1822 1823 SSL_get_servername() 1824 SSL_get_servername_type() 1825 SSL_set_SSL_CTX() 1826 1827 New CTRL codes and macros (subject to change): 1828 1829 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1830 - SSL_CTX_set_tlsext_servername_callback() 1831 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1832 - SSL_CTX_set_tlsext_servername_arg() 1833 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1834 1835 openssl s_client has a new '-servername ...' option. 1836 1837 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1838 '-key2 ...', '-servername_fatal' (subject to change). This allows 1839 testing the HostName extension for a specific single host name ('-cert' 1840 and '-key' remain fallbacks for handshakes without HostName 1841 negotiation). If the unrecogninzed_name alert has to be sent, this by 1842 default is a warning; it becomes fatal with the '-servername_fatal' 1843 option. 1844 1845 [Peter Sylvester, Remy Allais, Christophe Renou] 1846 1847 *) Whirlpool hash implementation is added. 1848 [Andy Polyakov] 1849 1850 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1851 bn(64,32). Because of instruction set limitations it doesn't have 1852 any negative impact on performance. This was done mostly in order 1853 to make it possible to share assembler modules, such as bn_mul_mont 1854 implementations, between 32- and 64-bit builds without hassle. 1855 [Andy Polyakov] 1856 1857 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1858 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1859 macro. 1860 [Bodo Moeller] 1861 1862 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1863 dedicated Montgomery multiplication procedure, is introduced. 1864 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1865 "64-bit" performance on certain 32-bit targets. 1866 [Andy Polyakov] 1867 1868 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1869 in SSL structures. New SSL ctrl to set maximum send fragment size. 1870 Save memory by seeting the I/O buffer sizes dynamically instead of 1871 using the maximum available value. 1872 [Steve Henson] 1873 1874 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1875 in addition to the text details. 1876 [Bodo Moeller] 1877 1878 *) Very, very preliminary EXPERIMENTAL support for printing of general 1879 ASN1 structures. This currently produces rather ugly output and doesn't 1880 handle several customised structures at all. 1881 [Steve Henson] 1882 1883 *) Integrated support for PVK file format and some related formats such 1884 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1885 these in the 'rsa' and 'dsa' utilities. 1886 [Steve Henson] 1887 1888 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1889 [Steve Henson] 1890 1891 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1892 place for the (very old) "NETSCAPE" format certificates which are now 1893 handled using new ASN1 code equivalents. 1894 [Steve Henson] 1895 1896 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1897 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1898 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1899 [Nils Larsch] 1900 1901 *) Modify CRL distribution points extension code to print out previously 1902 unsupported fields. Enhance extension setting code to allow setting of 1903 all fields. 1904 [Steve Henson] 1905 1906 *) Add print and set support for Issuing Distribution Point CRL extension. 1907 [Steve Henson] 1908 1909 *) Change 'Configure' script to enable Camellia by default. 1910 [NTT] 1911 1912 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1913 1914 *) When rejecting SSL/TLS records due to an incorrect version number, never 1915 update s->server with a new major version number. As of 1916 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1917 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1918 the previous behavior could result in a read attempt at NULL when 1919 receiving specific incorrect SSL/TLS records once record payload 1920 protection is active. (CVE-2010-0740) 1921 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1922 1923 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1924 could be crashed if the relevant tables were not present (e.g. chrooted). 1925 [Tomas Hoger <thoger@redhat.com>] 1926 1927 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1928 1929 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1930 [Martin Olsson, Neel Mehta] 1931 1932 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1933 accommodate for stack sorting, always a write lock!). 1934 [Bodo Moeller] 1935 1936 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1937 excessive delays in the RAND_poll(): over a minute. As a workaround 1938 include a time check in the inner Heap32Next loop too. 1939 [Steve Henson] 1940 1941 *) The code that handled flushing of data in SSL/TLS originally used the 1942 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1943 the problem outlined in PR#1949. The fix suggested there however can 1944 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1945 of Apache). So instead simplify the code to flush unconditionally. 1946 This should be fine since flushing with no data to flush is a no op. 1947 [Steve Henson] 1948 1949 *) Handle TLS versions 2.0 and later properly and correctly use the 1950 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1951 off ancient servers have a habit of sticking around for a while... 1952 [Steve Henson] 1953 1954 *) Modify compression code so it frees up structures without using the 1955 ex_data callbacks. This works around a problem where some applications 1956 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1957 restarting) then use compression (e.g. SSL with compression) later. 1958 This results in significant per-connection memory leaks and 1959 has caused some security issues including CVE-2008-1678 and 1960 CVE-2009-4355. 1961 [Steve Henson] 1962 1963 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1964 change when encrypting or decrypting. 1965 [Bodo Moeller] 1966 1967 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1968 connect and renegotiate with servers which do not support RI. 1969 Until RI is more widely deployed this option is enabled by default. 1970 [Steve Henson] 1971 1972 *) Add "missing" ssl ctrls to clear options and mode. 1973 [Steve Henson] 1974 1975 *) If client attempts to renegotiate and doesn't support RI respond with 1976 a no_renegotiation alert as required by RFC5746. Some renegotiating 1977 TLS clients will continue a connection gracefully when they receive 1978 the alert. Unfortunately OpenSSL mishandled this alert and would hang 1979 waiting for a server hello which it will never receive. Now we treat a 1980 received no_renegotiation alert as a fatal error. This is because 1981 applications requesting a renegotiation might well expect it to succeed 1982 and would have no code in place to handle the server denying it so the 1983 only safe thing to do is to terminate the connection. 1984 [Steve Henson] 1985 1986 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 1987 peer supports secure renegotiation and 0 otherwise. Print out peer 1988 renegotiation support in s_client/s_server. 1989 [Steve Henson] 1990 1991 *) Replace the highly broken and deprecated SPKAC certification method with 1992 the updated NID creation version. This should correctly handle UTF8. 1993 [Steve Henson] 1994 1995 *) Implement RFC5746. Re-enable renegotiation but require the extension 1996 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 1997 turns out to be a bad idea. It has been replaced by 1998 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 1999 SSL_CTX_set_options(). This is really not recommended unless you 2000 know what you are doing. 2001 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 2002 2003 *) Fixes to stateless session resumption handling. Use initial_ctx when 2004 issuing and attempting to decrypt tickets in case it has changed during 2005 servername handling. Use a non-zero length session ID when attempting 2006 stateless session resumption: this makes it possible to determine if 2007 a resumption has occurred immediately after receiving server hello 2008 (several places in OpenSSL subtly assume this) instead of later in 2009 the handshake. 2010 [Steve Henson] 2011 2012 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 2013 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 2014 fixes for a few places where the return code is not checked 2015 correctly. 2016 [Julia Lawall <julia@diku.dk>] 2017 2018 *) Add --strict-warnings option to Configure script to include devteam 2019 warnings in other configurations. 2020 [Steve Henson] 2021 2022 *) Add support for --libdir option and LIBDIR variable in makefiles. This 2023 makes it possible to install openssl libraries in locations which 2024 have names other than "lib", for example "/usr/lib64" which some 2025 systems need. 2026 [Steve Henson, based on patch from Jeremy Utley] 2027 2028 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 2029 X690 8.9.12 and can produce some misleading textual output of OIDs. 2030 [Steve Henson, reported by Dan Kaminsky] 2031 2032 *) Delete MD2 from algorithm tables. This follows the recommendation in 2033 several standards that it is not used in new applications due to 2034 several cryptographic weaknesses. For binary compatibility reasons 2035 the MD2 API is still compiled in by default. 2036 [Steve Henson] 2037 2038 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 2039 and restored. 2040 [Steve Henson] 2041 2042 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 2043 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 2044 clash. 2045 [Guenter <lists@gknw.net>] 2046 2047 *) Fix the server certificate chain building code to use X509_verify_cert(), 2048 it used to have an ad-hoc builder which was unable to cope with anything 2049 other than a simple chain. 2050 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 2051 2052 *) Don't check self signed certificate signatures in X509_verify_cert() 2053 by default (a flag can override this): it just wastes time without 2054 adding any security. As a useful side effect self signed root CAs 2055 with non-FIPS digests are now usable in FIPS mode. 2056 [Steve Henson] 2057 2058 *) In dtls1_process_out_of_seq_message() the check if the current message 2059 is already buffered was missing. For every new message was memory 2060 allocated, allowing an attacker to perform an denial of service attack 2061 with sending out of seq handshake messages until there is no memory 2062 left. Additionally every future messege was buffered, even if the 2063 sequence number made no sense and would be part of another handshake. 2064 So only messages with sequence numbers less than 10 in advance will be 2065 buffered. (CVE-2009-1378) 2066 [Robin Seggelmann, discovered by Daniel Mentz] 2067 2068 *) Records are buffered if they arrive with a future epoch to be 2069 processed after finishing the corresponding handshake. There is 2070 currently no limitation to this buffer allowing an attacker to perform 2071 a DOS attack with sending records with future epochs until there is no 2072 memory left. This patch adds the pqueue_size() function to detemine 2073 the size of a buffer and limits the record buffer to 100 entries. 2074 (CVE-2009-1377) 2075 [Robin Seggelmann, discovered by Daniel Mentz] 2076 2077 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 2078 parent structure is freed. (CVE-2009-1379) 2079 [Daniel Mentz] 2080 2081 *) Handle non-blocking I/O properly in SSL_shutdown() call. 2082 [Darryl Miles <darryl-mailinglists@netbauds.net>] 2083 2084 *) Add 2.5.4.* OIDs 2085 [Ilya O. <vrghost@gmail.com>] 2086 2087 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 2088 2089 *) Disable renegotiation completely - this fixes a severe security 2090 problem (CVE-2009-3555) at the cost of breaking all 2091 renegotiation. Renegotiation can be re-enabled by setting 2092 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 2093 run-time. This is really not recommended unless you know what 2094 you're doing. 2095 [Ben Laurie] 2096 2097 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 2098 2099 *) Don't set val to NULL when freeing up structures, it is freed up by 2100 underlying code. If sizeof(void *) > sizeof(long) this can result in 2101 zeroing past the valid field. (CVE-2009-0789) 2102 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 2103 2104 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 2105 checked correctly. This would allow some invalid signed attributes to 2106 appear to verify correctly. (CVE-2009-0591) 2107 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2108 2109 *) Reject UniversalString and BMPString types with invalid lengths. This 2110 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 2111 a legal length. (CVE-2009-0590) 2112 [Steve Henson] 2113 2114 *) Set S/MIME signing as the default purpose rather than setting it 2115 unconditionally. This allows applications to override it at the store 2116 level. 2117 [Steve Henson] 2118 2119 *) Permit restricted recursion of ASN1 strings. This is needed in practice 2120 to handle some structures. 2121 [Steve Henson] 2122 2123 *) Improve efficiency of mem_gets: don't search whole buffer each time 2124 for a '\n' 2125 [Jeremy Shapiro <jnshapir@us.ibm.com>] 2126 2127 *) New -hex option for openssl rand. 2128 [Matthieu Herrb] 2129 2130 *) Print out UTF8String and NumericString when parsing ASN1. 2131 [Steve Henson] 2132 2133 *) Support NumericString type for name components. 2134 [Steve Henson] 2135 2136 *) Allow CC in the environment to override the automatically chosen 2137 compiler. Note that nothing is done to ensure flags work with the 2138 chosen compiler. 2139 [Ben Laurie] 2140 2141 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2142 2143 *) Properly check EVP_VerifyFinal() and similar return values 2144 (CVE-2008-5077). 2145 [Ben Laurie, Bodo Moeller, Google Security Team] 2146 2147 *) Enable TLS extensions by default. 2148 [Ben Laurie] 2149 2150 *) Allow the CHIL engine to be loaded, whether the application is 2151 multithreaded or not. (This does not release the developer from the 2152 obligation to set up the dynamic locking callbacks.) 2153 [Sander Temme <sander@temme.net>] 2154 2155 *) Use correct exit code if there is an error in dgst command. 2156 [Steve Henson; problem pointed out by Roland Dirlewanger] 2157 2158 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2159 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2160 [Bodo Moeller] 2161 2162 *) Add experimental JPAKE support, including demo authentication in 2163 s_client and s_server. 2164 [Ben Laurie] 2165 2166 *) Set the comparison function in v3_addr_canonize(). 2167 [Rob Austein <sra@hactrn.net>] 2168 2169 *) Add support for XMPP STARTTLS in s_client. 2170 [Philip Paeps <philip@freebsd.org>] 2171 2172 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2173 to ensure that even with this option, only ciphersuites in the 2174 server's preference list will be accepted. (Note that the option 2175 applies only when resuming a session, so the earlier behavior was 2176 just about the algorithm choice for symmetric cryptography.) 2177 [Bodo Moeller] 2178 2179 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2180 2181 *) Fix NULL pointer dereference if a DTLS server received 2182 ChangeCipherSpec as first record (CVE-2009-1386). 2183 [PR #1679] 2184 2185 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2186 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2187 [Nagendra Modadugu] 2188 2189 *) The fix in 0.9.8c that supposedly got rid of unsafe 2190 double-checked locking was incomplete for RSA blinding, 2191 addressing just one layer of what turns out to have been 2192 doubly unsafe triple-checked locking. 2193 2194 So now fix this for real by retiring the MONT_HELPER macro 2195 in crypto/rsa/rsa_eay.c. 2196 2197 [Bodo Moeller; problem pointed out by Marius Schilder] 2198 2199 *) Various precautionary measures: 2200 2201 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2202 2203 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2204 (NB: This would require knowledge of the secret session ticket key 2205 to exploit, in which case you'd be SOL either way.) 2206 2207 - Change bn_nist.c so that it will properly handle input BIGNUMs 2208 outside the expected range. 2209 2210 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2211 builds. 2212 2213 [Neel Mehta, Bodo Moeller] 2214 2215 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2216 the load fails. Useful for distros. 2217 [Ben Laurie and the FreeBSD team] 2218 2219 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2220 [Steve Henson] 2221 2222 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2223 [Huang Ying] 2224 2225 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2226 2227 This work was sponsored by Logica. 2228 [Steve Henson] 2229 2230 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2231 keystores. Support for SSL/TLS client authentication too. 2232 Not compiled unless enable-capieng specified to Configure. 2233 2234 This work was sponsored by Logica. 2235 [Steve Henson] 2236 2237 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2238 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2239 attribute creation routines such as certifcate requests and PKCS#12 2240 files. 2241 [Steve Henson] 2242 2243 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2244 2245 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2246 handshake which could lead to a cilent crash as found using the 2247 Codenomicon TLS test suite (CVE-2008-1672) 2248 [Steve Henson, Mark Cox] 2249 2250 *) Fix double free in TLS server name extensions which could lead to 2251 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2252 [Joe Orton] 2253 2254 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2255 2256 Clear the error queue to ensure that error entries left from 2257 older function calls do not interfere with the correct operation. 2258 [Lutz Jaenicke, Erik de Castro Lopo] 2259 2260 *) Remove root CA certificates of commercial CAs: 2261 2262 The OpenSSL project does not recommend any specific CA and does not 2263 have any policy with respect to including or excluding any CA. 2264 Therefore it does not make any sense to ship an arbitrary selection 2265 of root CA certificates with the OpenSSL software. 2266 [Lutz Jaenicke] 2267 2268 *) RSA OAEP patches to fix two separate invalid memory reads. 2269 The first one involves inputs when 'lzero' is greater than 2270 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2271 before the beginning of from). The second one involves inputs where 2272 the 'db' section contains nothing but zeroes (there is a one-byte 2273 invalid read after the end of 'db'). 2274 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2275 2276 *) Partial backport from 0.9.9-dev: 2277 2278 Introduce bn_mul_mont (dedicated Montgomery multiplication 2279 procedure) as a candidate for BIGNUM assembler implementation. 2280 While 0.9.9-dev uses assembler for various architectures, only 2281 x86_64 is available by default here in the 0.9.8 branch, and 2282 32-bit x86 is available through a compile-time setting. 2283 2284 To try the 32-bit x86 assembler implementation, use Configure 2285 option "enable-montasm" (which exists only for this backport). 2286 2287 As "enable-montasm" for 32-bit x86 disclaims code stability 2288 anyway, in this constellation we activate additional code 2289 backported from 0.9.9-dev for further performance improvements, 2290 namely BN_from_montgomery_word. (To enable this otherwise, 2291 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2292 2293 [Andy Polyakov (backport partially by Bodo Moeller)] 2294 2295 *) Add TLS session ticket callback. This allows an application to set 2296 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2297 values. This is useful for key rollover for example where several key 2298 sets may exist with different names. 2299 [Steve Henson] 2300 2301 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2302 This was broken until now in 0.9.8 releases, such that the only way 2303 a registered ENGINE could be used (assuming it initialises 2304 successfully on the host) was to explicitly set it as the default 2305 for the relevant algorithms. This is in contradiction with 0.9.7 2306 behaviour and the documentation. With this fix, when an ENGINE is 2307 registered into a given algorithm's table of implementations, the 2308 'uptodate' flag is reset so that auto-discovery will be used next 2309 time a new context for that algorithm attempts to select an 2310 implementation. 2311 [Ian Lister (tweaked by Geoff Thorpe)] 2312 2313 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2314 implemention in the following ways: 2315 2316 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2317 hard coded. 2318 2319 Lack of BER streaming support means one pass streaming processing is 2320 only supported if data is detached: setting the streaming flag is 2321 ignored for embedded content. 2322 2323 CMS support is disabled by default and must be explicitly enabled 2324 with the enable-cms configuration option. 2325 [Steve Henson] 2326 2327 *) Update the GMP engine glue to do direct copies between BIGNUM and 2328 mpz_t when openssl and GMP use the same limb size. Otherwise the 2329 existing "conversion via a text string export" trick is still used. 2330 [Paul Sheer <paulsheer@gmail.com>] 2331 2332 *) Zlib compression BIO. This is a filter BIO which compressed and 2333 uncompresses any data passed through it. 2334 [Steve Henson] 2335 2336 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2337 RFC3394 compatible AES key wrapping. 2338 [Steve Henson] 2339 2340 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2341 sets string data without copying. X509_ALGOR_set0() and 2342 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2343 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2344 from an X509_ATTRIBUTE structure optionally checking it occurs only 2345 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2346 data. 2347 [Steve Henson] 2348 2349 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2350 to get the expected BN_FLG_CONSTTIME behavior. 2351 [Bodo Moeller (Google)] 2352 2353 *) Netware support: 2354 2355 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2356 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2357 - added some more tests to do_tests.pl 2358 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2359 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2360 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2361 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2362 - various changes to netware.pl to enable gcc-cross builds on Win32 2363 platform 2364 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2365 - various changes to fix missing prototype warnings 2366 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2367 - added AES, WHIRLPOOL and CPUID assembler code to build files 2368 - added missing AES assembler make rules to mk1mf.pl 2369 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2370 [Guenter Knauf <eflash@gmx.net>] 2371 2372 *) Implement certificate status request TLS extension defined in RFC3546. 2373 A client can set the appropriate parameters and receive the encoded 2374 OCSP response via a callback. A server can query the supplied parameters 2375 and set the encoded OCSP response in the callback. Add simplified examples 2376 to s_client and s_server. 2377 [Steve Henson] 2378 2379 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2380 2381 *) Fix various bugs: 2382 + Binary incompatibility of ssl_ctx_st structure 2383 + DTLS interoperation with non-compliant servers 2384 + Don't call get_session_cb() without proposed session 2385 + Fix ia64 assembler code 2386 [Andy Polyakov, Steve Henson] 2387 2388 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2389 2390 *) DTLS Handshake overhaul. There were longstanding issues with 2391 OpenSSL DTLS implementation, which were making it impossible for 2392 RFC 4347 compliant client to communicate with OpenSSL server. 2393 Unfortunately just fixing these incompatibilities would "cut off" 2394 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2395 server keeps tolerating non RFC compliant syntax. The opposite is 2396 not true, 0.9.8f client can not communicate with earlier server. 2397 This update even addresses CVE-2007-4995. 2398 [Andy Polyakov] 2399 2400 *) Changes to avoid need for function casts in OpenSSL: some compilers 2401 (gcc 4.2 and later) reject their use. 2402 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2403 Steve Henson] 2404 2405 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2406 RFC4507bis. The encrypted ticket format is an encrypted encoded 2407 SSL_SESSION structure, that way new session features are automatically 2408 supported. 2409 2410 If a client application caches session in an SSL_SESSION structure 2411 support is transparent because tickets are now stored in the encoded 2412 SSL_SESSION. 2413 2414 The SSL_CTX structure automatically generates keys for ticket 2415 protection in servers so again support should be possible 2416 with no application modification. 2417 2418 If a client or server wishes to disable RFC4507 support then the option 2419 SSL_OP_NO_TICKET can be set. 2420 2421 Add a TLS extension debugging callback to allow the contents of any client 2422 or server extensions to be examined. 2423 2424 This work was sponsored by Google. 2425 [Steve Henson] 2426 2427 *) Add initial support for TLS extensions, specifically for the server_name 2428 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2429 have new members for a host name. The SSL data structure has an 2430 additional member SSL_CTX *initial_ctx so that new sessions can be 2431 stored in that context to allow for session resumption, even after the 2432 SSL has been switched to a new SSL_CTX in reaction to a client's 2433 server_name extension. 2434 2435 New functions (subject to change): 2436 2437 SSL_get_servername() 2438 SSL_get_servername_type() 2439 SSL_set_SSL_CTX() 2440 2441 New CTRL codes and macros (subject to change): 2442 2443 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2444 - SSL_CTX_set_tlsext_servername_callback() 2445 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2446 - SSL_CTX_set_tlsext_servername_arg() 2447 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2448 2449 openssl s_client has a new '-servername ...' option. 2450 2451 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2452 '-key2 ...', '-servername_fatal' (subject to change). This allows 2453 testing the HostName extension for a specific single host name ('-cert' 2454 and '-key' remain fallbacks for handshakes without HostName 2455 negotiation). If the unrecogninzed_name alert has to be sent, this by 2456 default is a warning; it becomes fatal with the '-servername_fatal' 2457 option. 2458 2459 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2460 2461 *) Add AES and SSE2 assembly language support to VC++ build. 2462 [Steve Henson] 2463 2464 *) Mitigate attack on final subtraction in Montgomery reduction. 2465 [Andy Polyakov] 2466 2467 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2468 (which previously caused an internal error). 2469 [Bodo Moeller] 2470 2471 *) Squeeze another 10% out of IGE mode when in != out. 2472 [Ben Laurie] 2473 2474 *) AES IGE mode speedup. 2475 [Dean Gaudet (Google)] 2476 2477 *) Add the Korean symmetric 128-bit cipher SEED (see 2478 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2479 add SEED ciphersuites from RFC 4162: 2480 2481 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2482 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2483 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2484 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2485 2486 To minimize changes between patchlevels in the OpenSSL 0.9.8 2487 series, SEED remains excluded from compilation unless OpenSSL 2488 is configured with 'enable-seed'. 2489 [KISA, Bodo Moeller] 2490 2491 *) Mitigate branch prediction attacks, which can be practical if a 2492 single processor is shared, allowing a spy process to extract 2493 information. For detailed background information, see 2494 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2495 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2496 and Necessary Software Countermeasures"). The core of the change 2497 are new versions BN_div_no_branch() and 2498 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2499 respectively, which are slower, but avoid the security-relevant 2500 conditional branches. These are automatically called by BN_div() 2501 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2502 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2503 remove a conditional branch. 2504 2505 BN_FLG_CONSTTIME is the new name for the previous 2506 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2507 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2508 in the exponent causes BN_mod_exp_mont() to use the alternative 2509 implementation in BN_mod_exp_mont_consttime().) The old name 2510 remains as a deprecated alias. 2511 2512 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2513 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2514 constant-time implementations for more than just exponentiation. 2515 Here too the old name is kept as a deprecated alias. 2516 2517 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2518 the BN_BLINDING structure gets an independent copy of the 2519 modulus. This means that the previous "BIGNUM *m" argument to 2520 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2521 essentially becomes "const BIGNUM *m", although we can't actually 2522 change this in the header file before 0.9.9. It allows 2523 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2524 enable BN_FLG_CONSTTIME. 2525 2526 [Matthew D Wood (Intel Corp)] 2527 2528 *) In the SSL/TLS server implementation, be strict about session ID 2529 context matching (which matters if an application uses a single 2530 external cache for different purposes). Previously, 2531 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2532 set. This did ensure strict client verification, but meant that, 2533 with applications using a single external cache for quite 2534 different requirements, clients could circumvent ciphersuite 2535 restrictions for a given session ID context by starting a session 2536 in a different context. 2537 [Bodo Moeller] 2538 2539 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2540 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2541 authentication-only ciphersuites. 2542 [Bodo Moeller] 2543 2544 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2545 not complete and could lead to a possible single byte overflow 2546 (CVE-2007-5135) [Ben Laurie] 2547 2548 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2549 2550 *) Since AES128 and AES256 (and similarly Camellia128 and 2551 Camellia256) share a single mask bit in the logic of 2552 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2553 kludge to work properly if AES128 is available and AES256 isn't 2554 (or if Camellia128 is available and Camellia256 isn't). 2555 [Victor Duchovni] 2556 2557 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2558 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2559 When a point or a seed is encoded in a BIT STRING, we need to 2560 prevent the removal of trailing zero bits to get the proper DER 2561 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2562 of a NamedBitList, for which trailing 0 bits need to be removed.) 2563 [Bodo Moeller] 2564 2565 *) Have SSL/TLS server implementation tolerate "mismatched" record 2566 protocol version while receiving ClientHello even if the 2567 ClientHello is fragmented. (The server can't insist on the 2568 particular protocol version it has chosen before the ServerHello 2569 message has informed the client about his choice.) 2570 [Bodo Moeller] 2571 2572 *) Add RFC 3779 support. 2573 [Rob Austein for ARIN, Ben Laurie] 2574 2575 *) Load error codes if they are not already present instead of using a 2576 static variable. This allows them to be cleanly unloaded and reloaded. 2577 Improve header file function name parsing. 2578 [Steve Henson] 2579 2580 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2581 or CAPABILITY handshake as required by RFCs. 2582 [Goetz Babin-Ebell] 2583 2584 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2585 2586 *) Introduce limits to prevent malicious keys being able to 2587 cause a denial of service. (CVE-2006-2940) 2588 [Steve Henson, Bodo Moeller] 2589 2590 *) Fix ASN.1 parsing of certain invalid structures that can result 2591 in a denial of service. (CVE-2006-2937) [Steve Henson] 2592 2593 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2594 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2595 2596 *) Fix SSL client code which could crash if connecting to a 2597 malicious SSLv2 server. (CVE-2006-4343) 2598 [Tavis Ormandy and Will Drewry, Google Security Team] 2599 2600 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2601 match only those. Before that, "AES256-SHA" would be interpreted 2602 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2603 the same strength classification in 0.9.7h) as we currently only 2604 have a single AES bit in the ciphersuite description bitmap. 2605 That change, however, also applied to ciphersuite strings such as 2606 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2607 namely, SSL 2.0 ciphersuites in addition to the more common ones 2608 from SSL 3.0/TLS 1.0. 2609 2610 So we change the selection algorithm again: Naming an explicit 2611 ciphersuite selects this one ciphersuite, and any other similar 2612 ciphersuite (same bitmap) from *other* protocol versions. 2613 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2614 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2615 2616 Since SSL 2.0 does not have any ciphersuites for which the 2617 128/256 bit distinction would be relevant, this works for now. 2618 The proper fix will be to use different bits for AES128 and 2619 AES256, which would have avoided the problems from the beginning; 2620 however, bits are scarce, so we can only do this in a new release 2621 (not just a patchlevel) when we can change the SSL_CIPHER 2622 definition to split the single 'unsigned long mask' bitmap into 2623 multiple values to extend the available space. 2624 2625 [Bodo Moeller] 2626 2627 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2628 2629 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2630 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2631 2632 *) Add AES IGE and biIGE modes. 2633 [Ben Laurie] 2634 2635 *) Change the Unix randomness entropy gathering to use poll() when 2636 possible instead of select(), since the latter has some 2637 undesirable limitations. 2638 [Darryl Miles via Richard Levitte and Bodo Moeller] 2639 2640 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2641 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2642 cannot be implicitly activated as part of, e.g., the "AES" alias. 2643 However, please upgrade to OpenSSL 0.9.9[-dev] for 2644 non-experimental use of the ECC ciphersuites to get TLS extension 2645 support, which is required for curve and point format negotiation 2646 to avoid potential handshake problems. 2647 [Bodo Moeller] 2648 2649 *) Disable rogue ciphersuites: 2650 2651 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2652 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2653 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2654 2655 The latter two were purportedly from 2656 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2657 appear there. 2658 2659 Also deactivate the remaining ciphersuites from 2660 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2661 unofficial, and the ID has long expired. 2662 [Bodo Moeller] 2663 2664 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2665 dual-core machines) and other potential thread-safety issues. 2666 [Bodo Moeller] 2667 2668 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2669 versions), which is now available for royalty-free use 2670 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2671 Also, add Camellia TLS ciphersuites from RFC 4132. 2672 2673 To minimize changes between patchlevels in the OpenSSL 0.9.8 2674 series, Camellia remains excluded from compilation unless OpenSSL 2675 is configured with 'enable-camellia'. 2676 [NTT] 2677 2678 *) Disable the padding bug check when compression is in use. The padding 2679 bug check assumes the first packet is of even length, this is not 2680 necessarily true if compresssion is enabled and can result in false 2681 positives causing handshake failure. The actual bug test is ancient 2682 code so it is hoped that implementations will either have fixed it by 2683 now or any which still have the bug do not support compression. 2684 [Steve Henson] 2685 2686 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2687 2688 *) When applying a cipher rule check to see if string match is an explicit 2689 cipher suite and only match that one cipher suite if it is. 2690 [Steve Henson] 2691 2692 *) Link in manifests for VC++ if needed. 2693 [Austin Ziegler <halostatue@gmail.com>] 2694 2695 *) Update support for ECC-based TLS ciphersuites according to 2696 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2697 TLS extensions, which are supported starting with the 0.9.9 2698 branch, not in the OpenSSL 0.9.8 branch). 2699 [Douglas Stebila] 2700 2701 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2702 opaque EVP_CIPHER_CTX handling. 2703 [Steve Henson] 2704 2705 *) Fixes and enhancements to zlib compression code. We now only use 2706 "zlib1.dll" and use the default __cdecl calling convention on Win32 2707 to conform with the standards mentioned here: 2708 http://www.zlib.net/DLL_FAQ.txt 2709 Static zlib linking now works on Windows and the new --with-zlib-include 2710 --with-zlib-lib options to Configure can be used to supply the location 2711 of the headers and library. Gracefully handle case where zlib library 2712 can't be loaded. 2713 [Steve Henson] 2714 2715 *) Several fixes and enhancements to the OID generation code. The old code 2716 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2717 handle numbers larger than ULONG_MAX, truncated printing and had a 2718 non standard OBJ_obj2txt() behaviour. 2719 [Steve Henson] 2720 2721 *) Add support for building of engines under engine/ as shared libraries 2722 under VC++ build system. 2723 [Steve Henson] 2724 2725 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2726 Hopefully, we will not see any false combination of paths any more. 2727 [Richard Levitte] 2728 2729 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2730 2731 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2732 (part of SSL_OP_ALL). This option used to disable the 2733 countermeasure against man-in-the-middle protocol-version 2734 rollback in the SSL 2.0 server implementation, which is a bad 2735 idea. (CVE-2005-2969) 2736 2737 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2738 for Information Security, National Institute of Advanced Industrial 2739 Science and Technology [AIST], Japan)] 2740 2741 *) Add two function to clear and return the verify parameter flags. 2742 [Steve Henson] 2743 2744 *) Keep cipherlists sorted in the source instead of sorting them at 2745 runtime, thus removing the need for a lock. 2746 [Nils Larsch] 2747 2748 *) Avoid some small subgroup attacks in Diffie-Hellman. 2749 [Nick Mathewson and Ben Laurie] 2750 2751 *) Add functions for well-known primes. 2752 [Nick Mathewson] 2753 2754 *) Extended Windows CE support. 2755 [Satoshi Nakamura and Andy Polyakov] 2756 2757 *) Initialize SSL_METHOD structures at compile time instead of during 2758 runtime, thus removing the need for a lock. 2759 [Steve Henson] 2760 2761 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2762 attempting to decrypt each encrypted key in turn. Add support to 2763 smime utility. 2764 [Steve Henson] 2765 2766 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2767 2768 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2769 OpenSSL 0.9.8.] 2770 2771 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2772 [Richard Levitte] 2773 2774 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2775 key into the same file any more. 2776 [Richard Levitte] 2777 2778 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2779 [Andy Polyakov] 2780 2781 *) Add -utf8 command line and config file option to 'ca'. 2782 [Stefan <stf@udoma.org] 2783 2784 *) Removed the macro des_crypt(), as it seems to conflict with some 2785 libraries. Use DES_crypt(). 2786 [Richard Levitte] 2787 2788 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2789 involves renaming the source and generated shared-libs for 2790 both. The engines will accept the corrected or legacy ids 2791 ('ncipher' and '4758_cca' respectively) when binding. NB, 2792 this only applies when building 'shared'. 2793 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2794 2795 *) Add attribute functions to EVP_PKEY structure. Modify 2796 PKCS12_create() to recognize a CSP name attribute and 2797 use it. Make -CSP option work again in pkcs12 utility. 2798 [Steve Henson] 2799 2800 *) Add new functionality to the bn blinding code: 2801 - automatic re-creation of the BN_BLINDING parameters after 2802 a fixed number of uses (currently 32) 2803 - add new function for parameter creation 2804 - introduce flags to control the update behaviour of the 2805 BN_BLINDING parameters 2806 - hide BN_BLINDING structure 2807 Add a second BN_BLINDING slot to the RSA structure to improve 2808 performance when a single RSA object is shared among several 2809 threads. 2810 [Nils Larsch] 2811 2812 *) Add support for DTLS. 2813 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2814 2815 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2816 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2817 [Walter Goulet] 2818 2819 *) Remove buggy and incompletet DH cert support from 2820 ssl/ssl_rsa.c and ssl/s3_both.c 2821 [Nils Larsch] 2822 2823 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2824 the apps/openssl applications. 2825 [Nils Larsch] 2826 2827 *) Compile clean with "-Wall -Wmissing-prototypes 2828 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2829 DEBUG_SAFESTACK must also be set. 2830 [Ben Laurie] 2831 2832 *) Change ./Configure so that certain algorithms can be disabled by default. 2833 The new counterpiece to "no-xxx" is "enable-xxx". 2834 2835 The patented RC5 and MDC2 algorithms will now be disabled unless 2836 "enable-rc5" and "enable-mdc2", respectively, are specified. 2837 2838 (IDEA remains enabled despite being patented. This is because IDEA 2839 is frequently required for interoperability, and there is no license 2840 fee for non-commercial use. As before, "no-idea" can be used to 2841 avoid this algorithm.) 2842 2843 [Bodo Moeller] 2844 2845 *) Add processing of proxy certificates (see RFC 3820). This work was 2846 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2847 EGEE (Enabling Grids for E-science in Europe). 2848 [Richard Levitte] 2849 2850 *) RC4 performance overhaul on modern architectures/implementations, such 2851 as Intel P4, IA-64 and AMD64. 2852 [Andy Polyakov] 2853 2854 *) New utility extract-section.pl. This can be used specify an alternative 2855 section number in a pod file instead of having to treat each file as 2856 a separate case in Makefile. This can be done by adding two lines to the 2857 pod file: 2858 2859 =for comment openssl_section:XXX 2860 2861 The blank line is mandatory. 2862 2863 [Steve Henson] 2864 2865 *) New arguments -certform, -keyform and -pass for s_client and s_server 2866 to allow alternative format key and certificate files and passphrase 2867 sources. 2868 [Steve Henson] 2869 2870 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2871 update associated structures and add various utility functions. 2872 2873 Add new policy related verify parameters, include policy checking in 2874 standard verify code. Enhance 'smime' application with extra parameters 2875 to support policy checking and print out. 2876 [Steve Henson] 2877 2878 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2879 Nehemiah processors. These extensions support AES encryption in hardware 2880 as well as RNG (though RNG support is currently disabled). 2881 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2882 2883 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2884 [Geoff Thorpe] 2885 2886 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2887 [Andy Polyakov and a number of other people] 2888 2889 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2890 implementation contributed by IBM. 2891 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2892 2893 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2894 exponent rather than 'unsigned long'. There is a corresponding change to 2895 the new 'rsa_keygen' element of the RSA_METHOD structure. 2896 [Jelte Jansen, Geoff Thorpe] 2897 2898 *) Functionality for creating the initial serial number file is now 2899 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2900 2901 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2902 number file to 1, which is bound to cause problems. To avoid 2903 the problems while respecting compatibility between different 0.9.7 2904 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2905 CA.pl for serial number initialization. With the new release 0.9.8, 2906 we can fix the problem directly in the 'ca' utility.) 2907 [Steve Henson] 2908 2909 *) Reduced header interdepencies by declaring more opaque objects in 2910 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2911 give fewer recursive includes, which could break lazy source code - so 2912 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2913 developers should define this symbol when building and using openssl to 2914 ensure they track the recommended behaviour, interfaces, [etc], but 2915 backwards-compatible behaviour prevails when this isn't defined. 2916 [Geoff Thorpe] 2917 2918 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2919 [Steve Henson] 2920 2921 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2922 This will generate a random key of the appropriate length based on the 2923 cipher context. The EVP_CIPHER can provide its own random key generation 2924 routine to support keys of a specific form. This is used in the des and 2925 3des routines to generate a key of the correct parity. Update S/MIME 2926 code to use new functions and hence generate correct parity DES keys. 2927 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2928 valid (weak or incorrect parity). 2929 [Steve Henson] 2930 2931 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2932 as looking them up. This is useful when the verified structure may contain 2933 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2934 present unless the new PKCS7_NO_CRL flag is asserted. 2935 [Steve Henson] 2936 2937 *) Extend ASN1 oid configuration module. It now additionally accepts the 2938 syntax: 2939 2940 shortName = some long name, 1.2.3.4 2941 [Steve Henson] 2942 2943 *) Reimplemented the BN_CTX implementation. There is now no more static 2944 limitation on the number of variables it can handle nor the depth of the 2945 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2946 information can now expand as required, and rather than having a single 2947 static array of bignums, BN_CTX now uses a linked-list of such arrays 2948 allowing it to expand on demand whilst maintaining the usefulness of 2949 BN_CTX's "bundling". 2950 [Geoff Thorpe] 2951 2952 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2953 to allow all RSA operations to function using a single BN_CTX. 2954 [Geoff Thorpe] 2955 2956 *) Preliminary support for certificate policy evaluation and checking. This 2957 is initially intended to pass the tests outlined in "Conformance Testing 2958 of Relying Party Client Certificate Path Processing Logic" v1.07. 2959 [Steve Henson] 2960 2961 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2962 remained unused and not that useful. A variety of other little bignum 2963 tweaks and fixes have also been made continuing on from the audit (see 2964 below). 2965 [Geoff Thorpe] 2966 2967 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2968 associated ASN1, EVP and SSL functions and old ASN1 macros. 2969 [Richard Levitte] 2970 2971 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2972 and this should never fail. So the return value from the use of 2973 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2974 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2975 [Geoff Thorpe] 2976 2977 *) BN_CTX_get() should return zero-valued bignums, providing the same 2978 initialised value as BN_new(). 2979 [Geoff Thorpe, suggested by Ulf M�ller] 2980 2981 *) Support for inhibitAnyPolicy certificate extension. 2982 [Steve Henson] 2983 2984 *) An audit of the BIGNUM code is underway, for which debugging code is 2985 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 2986 is considered valid when processing BIGNUMs, and causes execution to 2987 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 2988 further steps are taken to deliberately pollute unused data in BIGNUM 2989 structures to try and expose faulty code further on. For now, openssl will 2990 (in its default mode of operation) continue to tolerate the inconsistent 2991 forms that it has tolerated in the past, but authors and packagers should 2992 consider trying openssl and their own applications when compiled with 2993 these debugging symbols defined. It will help highlight potential bugs in 2994 their own code, and will improve the test coverage for OpenSSL itself. At 2995 some point, these tighter rules will become openssl's default to improve 2996 maintainability, though the assert()s and other overheads will remain only 2997 in debugging configurations. See bn.h for more details. 2998 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 2999 3000 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 3001 that can only be obtained through BN_CTX_new() (which implicitly 3002 initialises it). The presence of this function only made it possible 3003 to overwrite an existing structure (and cause memory leaks). 3004 [Geoff Thorpe] 3005 3006 *) Because of the callback-based approach for implementing LHASH as a 3007 template type, lh_insert() adds opaque objects to hash-tables and 3008 lh_doall() or lh_doall_arg() are typically used with a destructor callback 3009 to clean up those corresponding objects before destroying the hash table 3010 (and losing the object pointers). So some over-zealous constifications in 3011 LHASH have been relaxed so that lh_insert() does not take (nor store) the 3012 objects as "const" and the lh_doall[_arg] callback wrappers are not 3013 prototyped to have "const" restrictions on the object pointers they are 3014 given (and so aren't required to cast them away any more). 3015 [Geoff Thorpe] 3016 3017 *) The tmdiff.h API was so ugly and minimal that our own timing utility 3018 (speed) prefers to use its own implementation. The two implementations 3019 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 3020 its object type properly exposed (MS_TM) instead of casting to/from "char 3021 *". This may still change yet if someone realises MS_TM and "ms_time_***" 3022 aren't necessarily the greatest nomenclatures - but this is what was used 3023 internally to the implementation so I've used that for now. 3024 [Geoff Thorpe] 3025 3026 *) Ensure that deprecated functions do not get compiled when 3027 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 3028 the self-tests were still using deprecated key-generation functions so 3029 these have been updated also. 3030 [Geoff Thorpe] 3031 3032 *) Reorganise PKCS#7 code to separate the digest location functionality 3033 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 3034 New function PKCS7_set_digest() to set the digest type for PKCS#7 3035 digestedData type. Add additional code to correctly generate the 3036 digestedData type and add support for this type in PKCS7 initialization 3037 functions. 3038 [Steve Henson] 3039 3040 *) New function PKCS7_set0_type_other() this initializes a PKCS7 3041 structure of type "other". 3042 [Steve Henson] 3043 3044 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 3045 sure the loop does correctly stop and breaking ("division by zero") 3046 modulus operations are not performed. The (pre-generated) prime 3047 table crypto/bn/bn_prime.h was already correct, but it could not be 3048 re-generated on some platforms because of the "division by zero" 3049 situation in the script. 3050 [Ralf S. Engelschall] 3051 3052 *) Update support for ECC-based TLS ciphersuites according to 3053 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 3054 SHA-1 now is only used for "small" curves (where the 3055 representation of a field element takes up to 24 bytes); for 3056 larger curves, the field element resulting from ECDH is directly 3057 used as premaster secret. 3058 [Douglas Stebila (Sun Microsystems Laboratories)] 3059 3060 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 3061 curve secp160r1 to the tests. 3062 [Douglas Stebila (Sun Microsystems Laboratories)] 3063 3064 *) Add the possibility to load symbols globally with DSO. 3065 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 3066 3067 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 3068 control of the error stack. 3069 [Richard Levitte] 3070 3071 *) Add support for STORE in ENGINE. 3072 [Richard Levitte] 3073 3074 *) Add the STORE type. The intention is to provide a common interface 3075 to certificate and key stores, be they simple file-based stores, or 3076 HSM-type store, or LDAP stores, or... 3077 NOTE: The code is currently UNTESTED and isn't really used anywhere. 3078 [Richard Levitte] 3079 3080 *) Add a generic structure called OPENSSL_ITEM. This can be used to 3081 pass a list of arguments to any function as well as provide a way 3082 for a function to pass data back to the caller. 3083 [Richard Levitte] 3084 3085 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 3086 works like BUF_strdup() but can be used to duplicate a portion of 3087 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 3088 a memory area. 3089 [Richard Levitte] 3090 3091 *) Add the function sk_find_ex() which works like sk_find(), but will 3092 return an index to an element even if an exact match couldn't be 3093 found. The index is guaranteed to point at the element where the 3094 searched-for key would be inserted to preserve sorting order. 3095 [Richard Levitte] 3096 3097 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 3098 takes an extra flags argument for optional functionality. Currently, 3099 the following flags are defined: 3100 3101 OBJ_BSEARCH_VALUE_ON_NOMATCH 3102 This one gets OBJ_bsearch_ex() to return a pointer to the first 3103 element where the comparing function returns a negative or zero 3104 number. 3105 3106 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 3107 This one gets OBJ_bsearch_ex() to return a pointer to the first 3108 element where the comparing function returns zero. This is useful 3109 if there are more than one element where the comparing function 3110 returns zero. 3111 [Richard Levitte] 3112 3113 *) Make it possible to create self-signed certificates with 'openssl ca' 3114 in such a way that the self-signed certificate becomes part of the 3115 CA database and uses the same mechanisms for serial number generation 3116 as all other certificate signing. The new flag '-selfsign' enables 3117 this functionality. Adapt CA.sh and CA.pl.in. 3118 [Richard Levitte] 3119 3120 *) Add functionality to check the public key of a certificate request 3121 against a given private. This is useful to check that a certificate 3122 request can be signed by that key (self-signing). 3123 [Richard Levitte] 3124 3125 *) Make it possible to have multiple active certificates with the same 3126 subject in the CA index file. This is done only if the keyword 3127 'unique_subject' is set to 'no' in the main CA section (default 3128 if 'CA_default') of the configuration file. The value is saved 3129 with the database itself in a separate index attribute file, 3130 named like the index file with '.attr' appended to the name. 3131 [Richard Levitte] 3132 3133 *) Generate muti valued AVAs using '+' notation in config files for 3134 req and dirName. 3135 [Steve Henson] 3136 3137 *) Support for nameConstraints certificate extension. 3138 [Steve Henson] 3139 3140 *) Support for policyConstraints certificate extension. 3141 [Steve Henson] 3142 3143 *) Support for policyMappings certificate extension. 3144 [Steve Henson] 3145 3146 *) Make sure the default DSA_METHOD implementation only uses its 3147 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3148 and change its own handlers to be NULL so as to remove unnecessary 3149 indirection. This lets alternative implementations fallback to the 3150 default implementation more easily. 3151 [Geoff Thorpe] 3152 3153 *) Support for directoryName in GeneralName related extensions 3154 in config files. 3155 [Steve Henson] 3156 3157 *) Make it possible to link applications using Makefile.shared. 3158 Make that possible even when linking against static libraries! 3159 [Richard Levitte] 3160 3161 *) Support for single pass processing for S/MIME signing. This now 3162 means that S/MIME signing can be done from a pipe, in addition 3163 cleartext signing (multipart/signed type) is effectively streaming 3164 and the signed data does not need to be all held in memory. 3165 3166 This is done with a new flag PKCS7_STREAM. When this flag is set 3167 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3168 is done after the data is output (and digests calculated) in 3169 SMIME_write_PKCS7(). 3170 [Steve Henson] 3171 3172 *) Add full support for -rpath/-R, both in shared libraries and 3173 applications, at least on the platforms where it's known how 3174 to do it. 3175 [Richard Levitte] 3176 3177 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3178 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3179 will now compute a table of multiples of the generator that 3180 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3181 faster (notably in the case of a single point multiplication, 3182 scalar * generator). 3183 [Nils Larsch, Bodo Moeller] 3184 3185 *) IPv6 support for certificate extensions. The various extensions 3186 which use the IP:a.b.c.d can now take IPv6 addresses using the 3187 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3188 correctly. 3189 [Steve Henson] 3190 3191 *) Added an ENGINE that implements RSA by performing private key 3192 exponentiations with the GMP library. The conversions to and from 3193 GMP's mpz_t format aren't optimised nor are any montgomery forms 3194 cached, and on x86 it appears OpenSSL's own performance has caught up. 3195 However there are likely to be other architectures where GMP could 3196 provide a boost. This ENGINE is not built in by default, but it can be 3197 specified at Configure time and should be accompanied by the necessary 3198 linker additions, eg; 3199 ./config -DOPENSSL_USE_GMP -lgmp 3200 [Geoff Thorpe] 3201 3202 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3203 testing availability of engines with "-t" - the old behaviour is 3204 produced by increasing the feature's verbosity with "-tt". 3205 [Geoff Thorpe] 3206 3207 *) ECDSA routines: under certain error conditions uninitialized BN objects 3208 could be freed. Solution: make sure initialization is performed early 3209 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3210 via PR#459) 3211 [Lutz Jaenicke] 3212 3213 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3214 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3215 software implementations. For DSA and DH, parameter generation can 3216 also be overriden by providing the appropriate method callbacks. 3217 [Geoff Thorpe] 3218 3219 *) Change the "progress" mechanism used in key-generation and 3220 primality testing to functions that take a new BN_GENCB pointer in 3221 place of callback/argument pairs. The new API functions have "_ex" 3222 postfixes and the older functions are reimplemented as wrappers for 3223 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3224 declarations of the old functions to help (graceful) attempts to 3225 migrate to the new functions. Also, the new key-generation API 3226 functions operate on a caller-supplied key-structure and return 3227 success/failure rather than returning a key or NULL - this is to 3228 help make "keygen" another member function of RSA_METHOD etc. 3229 3230 Example for using the new callback interface: 3231 3232 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3233 void *my_arg = ...; 3234 BN_GENCB my_cb; 3235 3236 BN_GENCB_set(&my_cb, my_callback, my_arg); 3237 3238 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3239 /* For the meaning of a, b in calls to my_callback(), see the 3240 * documentation of the function that calls the callback. 3241 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3242 * my_callback should return 1 if it wants BN_is_prime_ex() 3243 * to continue, or 0 to stop. 3244 */ 3245 3246 [Geoff Thorpe] 3247 3248 *) Change the ZLIB compression method to be stateful, and make it 3249 available to TLS with the number defined in 3250 draft-ietf-tls-compression-04.txt. 3251 [Richard Levitte] 3252 3253 *) Add the ASN.1 structures and functions for CertificatePair, which 3254 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3255 3256 CertificatePair ::= SEQUENCE { 3257 forward [0] Certificate OPTIONAL, 3258 reverse [1] Certificate OPTIONAL, 3259 -- at least one of the pair shall be present -- } 3260 3261 Also implement the PEM functions to read and write certificate 3262 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3263 3264 This needed to be defined, mostly for the sake of the LDAP 3265 attribute crossCertificatePair, but may prove useful elsewhere as 3266 well. 3267 [Richard Levitte] 3268 3269 *) Make it possible to inhibit symlinking of shared libraries in 3270 Makefile.shared, for Cygwin's sake. 3271 [Richard Levitte] 3272 3273 *) Extend the BIGNUM API by creating a function 3274 void BN_set_negative(BIGNUM *a, int neg); 3275 and a macro that behave like 3276 int BN_is_negative(const BIGNUM *a); 3277 3278 to avoid the need to access 'a->neg' directly in applications. 3279 [Nils Larsch] 3280 3281 *) Implement fast modular reduction for pseudo-Mersenne primes 3282 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3283 EC_GROUP_new_curve_GFp() will now automatically use this 3284 if applicable. 3285 [Nils Larsch <nla@trustcenter.de>] 3286 3287 *) Add new lock type (CRYPTO_LOCK_BN). 3288 [Bodo Moeller] 3289 3290 *) Change the ENGINE framework to automatically load engines 3291 dynamically from specific directories unless they could be 3292 found to already be built in or loaded. Move all the 3293 current engines except for the cryptodev one to a new 3294 directory engines/. 3295 The engines in engines/ are built as shared libraries if 3296 the "shared" options was given to ./Configure or ./config. 3297 Otherwise, they are inserted in libcrypto.a. 3298 /usr/local/ssl/engines is the default directory for dynamic 3299 engines, but that can be overriden at configure time through 3300 the usual use of --prefix and/or --openssldir, and at run 3301 time with the environment variable OPENSSL_ENGINES. 3302 [Geoff Thorpe and Richard Levitte] 3303 3304 *) Add Makefile.shared, a helper makefile to build shared 3305 libraries. Addapt Makefile.org. 3306 [Richard Levitte] 3307 3308 *) Add version info to Win32 DLLs. 3309 [Peter 'Luna' Runestig" <peter@runestig.com>] 3310 3311 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3312 can be added using this API to created arbitrary PKCS#12 3313 files while avoiding the low level API. 3314 3315 New options to PKCS12_create(), key or cert can be NULL and 3316 will then be omitted from the output file. The encryption 3317 algorithm NIDs can be set to -1 for no encryption, the mac 3318 iteration count can be set to 0 to omit the mac. 3319 3320 Enhance pkcs12 utility by making the -nokeys and -nocerts 3321 options work when creating a PKCS#12 file. New option -nomac 3322 to omit the mac, NONE can be set for an encryption algorithm. 3323 New code is modified to use the enhanced PKCS12_create() 3324 instead of the low level API. 3325 [Steve Henson] 3326 3327 *) Extend ASN1 encoder to support indefinite length constructed 3328 encoding. This can output sequences tags and octet strings in 3329 this form. Modify pk7_asn1.c to support indefinite length 3330 encoding. This is experimental and needs additional code to 3331 be useful, such as an ASN1 bio and some enhanced streaming 3332 PKCS#7 code. 3333 3334 Extend template encode functionality so that tagging is passed 3335 down to the template encoder. 3336 [Steve Henson] 3337 3338 *) Let 'openssl req' fail if an argument to '-newkey' is not 3339 recognized instead of using RSA as a default. 3340 [Bodo Moeller] 3341 3342 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3343 As these are not official, they are not included in "ALL"; 3344 the "ECCdraft" ciphersuite group alias can be used to select them. 3345 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3346 3347 *) Add ECDH engine support. 3348 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3349 3350 *) Add ECDH in new directory crypto/ecdh/. 3351 [Douglas Stebila (Sun Microsystems Laboratories)] 3352 3353 *) Let BN_rand_range() abort with an error after 100 iterations 3354 without success (which indicates a broken PRNG). 3355 [Bodo Moeller] 3356 3357 *) Change BN_mod_sqrt() so that it verifies that the input value 3358 is really the square of the return value. (Previously, 3359 BN_mod_sqrt would show GIGO behaviour.) 3360 [Bodo Moeller] 3361 3362 *) Add named elliptic curves over binary fields from X9.62, SECG, 3363 and WAP/WTLS; add OIDs that were still missing. 3364 3365 [Sheueling Chang Shantz and Douglas Stebila 3366 (Sun Microsystems Laboratories)] 3367 3368 *) Extend the EC library for elliptic curves over binary fields 3369 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3370 New EC_METHOD: 3371 3372 EC_GF2m_simple_method 3373 3374 New API functions: 3375 3376 EC_GROUP_new_curve_GF2m 3377 EC_GROUP_set_curve_GF2m 3378 EC_GROUP_get_curve_GF2m 3379 EC_POINT_set_affine_coordinates_GF2m 3380 EC_POINT_get_affine_coordinates_GF2m 3381 EC_POINT_set_compressed_coordinates_GF2m 3382 3383 Point compression for binary fields is disabled by default for 3384 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3385 enable it). 3386 3387 As binary polynomials are represented as BIGNUMs, various members 3388 of the EC_GROUP and EC_POINT data structures can be shared 3389 between the implementations for prime fields and binary fields; 3390 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3391 are essentially identical to their ..._GFp counterparts. 3392 (For simplicity, the '..._GFp' prefix has been dropped from 3393 various internal method names.) 3394 3395 An internal 'field_div' method (similar to 'field_mul' and 3396 'field_sqr') has been added; this is used only for binary fields. 3397 3398 [Sheueling Chang Shantz and Douglas Stebila 3399 (Sun Microsystems Laboratories)] 3400 3401 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3402 through methods ('mul', 'precompute_mult'). 3403 3404 The generic implementations (now internally called 'ec_wNAF_mul' 3405 and 'ec_wNAF_precomputed_mult') remain the default if these 3406 methods are undefined. 3407 3408 [Sheueling Chang Shantz and Douglas Stebila 3409 (Sun Microsystems Laboratories)] 3410 3411 *) New function EC_GROUP_get_degree, which is defined through 3412 EC_METHOD. For curves over prime fields, this returns the bit 3413 length of the modulus. 3414 3415 [Sheueling Chang Shantz and Douglas Stebila 3416 (Sun Microsystems Laboratories)] 3417 3418 *) New functions EC_GROUP_dup, EC_POINT_dup. 3419 (These simply call ..._new and ..._copy). 3420 3421 [Sheueling Chang Shantz and Douglas Stebila 3422 (Sun Microsystems Laboratories)] 3423 3424 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3425 Polynomials are represented as BIGNUMs (where the sign bit is not 3426 used) in the following functions [macros]: 3427 3428 BN_GF2m_add 3429 BN_GF2m_sub [= BN_GF2m_add] 3430 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3431 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3432 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3433 BN_GF2m_mod_inv 3434 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3435 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3436 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3437 BN_GF2m_cmp [= BN_ucmp] 3438 3439 (Note that only the 'mod' functions are actually for fields GF(2^m). 3440 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3441 3442 For some functions, an the irreducible polynomial defining a 3443 field can be given as an 'unsigned int[]' with strictly 3444 decreasing elements giving the indices of those bits that are set; 3445 i.e., p[] represents the polynomial 3446 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3447 where 3448 p[0] > p[1] > ... > p[k] = 0. 3449 This applies to the following functions: 3450 3451 BN_GF2m_mod_arr 3452 BN_GF2m_mod_mul_arr 3453 BN_GF2m_mod_sqr_arr 3454 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3455 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3456 BN_GF2m_mod_exp_arr 3457 BN_GF2m_mod_sqrt_arr 3458 BN_GF2m_mod_solve_quad_arr 3459 BN_GF2m_poly2arr 3460 BN_GF2m_arr2poly 3461 3462 Conversion can be performed by the following functions: 3463 3464 BN_GF2m_poly2arr 3465 BN_GF2m_arr2poly 3466 3467 bntest.c has additional tests for binary polynomial arithmetic. 3468 3469 Two implementations for BN_GF2m_mod_div() are available. 3470 The default algorithm simply uses BN_GF2m_mod_inv() and 3471 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3472 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3473 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3474 3475 [Sheueling Chang Shantz and Douglas Stebila 3476 (Sun Microsystems Laboratories)] 3477 3478 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3479 functionality is disabled at compile-time. 3480 [Douglas Stebila <douglas.stebila@sun.com>] 3481 3482 *) Change default behaviour of 'openssl asn1parse' so that more 3483 information is visible when viewing, e.g., a certificate: 3484 3485 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3486 mode the content of non-printable OCTET STRINGs is output in a 3487 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3488 avoid the appearance of a printable string. 3489 [Nils Larsch <nla@trustcenter.de>] 3490 3491 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3492 functions 3493 EC_GROUP_set_asn1_flag() 3494 EC_GROUP_get_asn1_flag() 3495 EC_GROUP_set_point_conversion_form() 3496 EC_GROUP_get_point_conversion_form() 3497 These control ASN1 encoding details: 3498 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3499 has been set to OPENSSL_EC_NAMED_CURVE. 3500 - Points are encoded in uncompressed form by default; options for 3501 asn1_for are as for point2oct, namely 3502 POINT_CONVERSION_COMPRESSED 3503 POINT_CONVERSION_UNCOMPRESSED 3504 POINT_CONVERSION_HYBRID 3505 3506 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3507 functions 3508 EC_GROUP_set_seed() 3509 EC_GROUP_get0_seed() 3510 EC_GROUP_get_seed_len() 3511 This is used only for ASN1 purposes (so far). 3512 [Nils Larsch <nla@trustcenter.de>] 3513 3514 *) Add 'field_type' member to EC_METHOD, which holds the NID 3515 of the appropriate field type OID. The new function 3516 EC_METHOD_get_field_type() returns this value. 3517 [Nils Larsch <nla@trustcenter.de>] 3518 3519 *) Add functions 3520 EC_POINT_point2bn() 3521 EC_POINT_bn2point() 3522 EC_POINT_point2hex() 3523 EC_POINT_hex2point() 3524 providing useful interfaces to EC_POINT_point2oct() and 3525 EC_POINT_oct2point(). 3526 [Nils Larsch <nla@trustcenter.de>] 3527 3528 *) Change internals of the EC library so that the functions 3529 EC_GROUP_set_generator() 3530 EC_GROUP_get_generator() 3531 EC_GROUP_get_order() 3532 EC_GROUP_get_cofactor() 3533 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3534 to methods, which would lead to unnecessary code duplication when 3535 adding different types of curves. 3536 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3537 3538 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3539 arithmetic, and such that modified wNAFs are generated 3540 (which avoid length expansion in many cases). 3541 [Bodo Moeller] 3542 3543 *) Add a function EC_GROUP_check_discriminant() (defined via 3544 EC_METHOD) that verifies that the curve discriminant is non-zero. 3545 3546 Add a function EC_GROUP_check() that makes some sanity tests 3547 on a EC_GROUP, its generator and order. This includes 3548 EC_GROUP_check_discriminant(). 3549 [Nils Larsch <nla@trustcenter.de>] 3550 3551 *) Add ECDSA in new directory crypto/ecdsa/. 3552 3553 Add applications 'openssl ecparam' and 'openssl ecdsa' 3554 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3555 3556 ECDSA support is also included in various other files across the 3557 library. Most notably, 3558 - 'openssl req' now has a '-newkey ecdsa:file' option; 3559 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3560 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3561 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3562 them suitable for ECDSA where domain parameters must be 3563 extracted before the specific public key; 3564 - ECDSA engine support has been added. 3565 [Nils Larsch <nla@trustcenter.de>] 3566 3567 *) Include some named elliptic curves, and add OIDs from X9.62, 3568 SECG, and WAP/WTLS. Each curve can be obtained from the new 3569 function 3570 EC_GROUP_new_by_curve_name(), 3571 and the list of available named curves can be obtained with 3572 EC_get_builtin_curves(). 3573 Also add a 'curve_name' member to EC_GROUP objects, which can be 3574 accessed via 3575 EC_GROUP_set_curve_name() 3576 EC_GROUP_get_curve_name() 3577 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3578 3579 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3580 was actually never needed) and in BN_mul(). The removal in BN_mul() 3581 required a small change in bn_mul_part_recursive() and the addition 3582 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3583 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3584 bn_sub_words() and bn_add_words() except they take arrays with 3585 differing sizes. 3586 [Richard Levitte] 3587 3588 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3589 3590 *) Cleanse PEM buffers before freeing them since they may contain 3591 sensitive data. 3592 [Benjamin Bennett <ben@psc.edu>] 3593 3594 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3595 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3596 authentication-only ciphersuites. 3597 [Bodo Moeller] 3598 3599 *) Since AES128 and AES256 share a single mask bit in the logic of 3600 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3601 kludge to work properly if AES128 is available and AES256 isn't. 3602 [Victor Duchovni] 3603 3604 *) Expand security boundary to match 1.1.1 module. 3605 [Steve Henson] 3606 3607 *) Remove redundant features: hash file source, editing of test vectors 3608 modify fipsld to use external fips_premain.c signature. 3609 [Steve Henson] 3610 3611 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3612 run algorithm test programs. 3613 [Steve Henson] 3614 3615 *) Make algorithm test programs more tolerant of whitespace. 3616 [Steve Henson] 3617 3618 *) Have SSL/TLS server implementation tolerate "mismatched" record 3619 protocol version while receiving ClientHello even if the 3620 ClientHello is fragmented. (The server can't insist on the 3621 particular protocol version it has chosen before the ServerHello 3622 message has informed the client about his choice.) 3623 [Bodo Moeller] 3624 3625 *) Load error codes if they are not already present instead of using a 3626 static variable. This allows them to be cleanly unloaded and reloaded. 3627 [Steve Henson] 3628 3629 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3630 3631 *) Introduce limits to prevent malicious keys being able to 3632 cause a denial of service. (CVE-2006-2940) 3633 [Steve Henson, Bodo Moeller] 3634 3635 *) Fix ASN.1 parsing of certain invalid structures that can result 3636 in a denial of service. (CVE-2006-2937) [Steve Henson] 3637 3638 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3639 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3640 3641 *) Fix SSL client code which could crash if connecting to a 3642 malicious SSLv2 server. (CVE-2006-4343) 3643 [Tavis Ormandy and Will Drewry, Google Security Team] 3644 3645 *) Change ciphersuite string processing so that an explicit 3646 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3647 will no longer include "AES128-SHA"), and any other similar 3648 ciphersuite (same bitmap) from *other* protocol versions (so that 3649 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3650 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3651 changes from 0.9.8b and 0.9.8d. 3652 [Bodo Moeller] 3653 3654 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3655 3656 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3657 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3658 3659 *) Change the Unix randomness entropy gathering to use poll() when 3660 possible instead of select(), since the latter has some 3661 undesirable limitations. 3662 [Darryl Miles via Richard Levitte and Bodo Moeller] 3663 3664 *) Disable rogue ciphersuites: 3665 3666 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3667 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3668 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3669 3670 The latter two were purportedly from 3671 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3672 appear there. 3673 3674 Also deactive the remaining ciphersuites from 3675 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3676 unofficial, and the ID has long expired. 3677 [Bodo Moeller] 3678 3679 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3680 dual-core machines) and other potential thread-safety issues. 3681 [Bodo Moeller] 3682 3683 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3684 3685 *) Adapt fipsld and the build system to link against the validated FIPS 3686 module in FIPS mode. 3687 [Steve Henson] 3688 3689 *) Fixes for VC++ 2005 build under Windows. 3690 [Steve Henson] 3691 3692 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3693 from a Windows bash shell such as MSYS. It is autodetected from the 3694 "config" script when run from a VC++ environment. Modify standard VC++ 3695 build to use fipscanister.o from the GNU make build. 3696 [Steve Henson] 3697 3698 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3699 3700 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3701 The value now differs depending on if you build for FIPS or not. 3702 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3703 safely run with a non-FIPSed libcrypto, as it may crash because of 3704 the difference induced by this change. 3705 [Andy Polyakov] 3706 3707 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3708 3709 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3710 (part of SSL_OP_ALL). This option used to disable the 3711 countermeasure against man-in-the-middle protocol-version 3712 rollback in the SSL 2.0 server implementation, which is a bad 3713 idea. (CVE-2005-2969) 3714 3715 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3716 for Information Security, National Institute of Advanced Industrial 3717 Science and Technology [AIST], Japan)] 3718 3719 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3720 mainly for FIPS compliance and not fully integrated at this stage. 3721 [Steve Henson] 3722 3723 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3724 the exponentiation using a fixed-length exponent. (Otherwise, 3725 the information leaked through timing could expose the secret key 3726 after many signatures; cf. Bleichenbacher's attack on DSA with 3727 biased k.) 3728 [Bodo Moeller] 3729 3730 *) Make a new fixed-window mod_exp implementation the default for 3731 RSA, DSA, and DH private-key operations so that the sequence of 3732 squares and multiplies and the memory access pattern are 3733 independent of the particular secret key. This will mitigate 3734 cache-timing and potential related attacks. 3735 3736 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3737 and this is automatically used by BN_mod_exp_mont() if the new flag 3738 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3739 will use this BN flag for private exponents unless the flag 3740 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3741 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3742 3743 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3744 3745 *) Change the client implementation for SSLv23_method() and 3746 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3747 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3748 (Previously, the SSL 2.0 backwards compatible Client Hello 3749 message format would be used even with SSL_OP_NO_SSLv2.) 3750 [Bodo Moeller] 3751 3752 *) Add support for smime-type MIME parameter in S/MIME messages which some 3753 clients need. 3754 [Steve Henson] 3755 3756 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3757 a threadsafe manner. Modify rsa code to use new function and add calls 3758 to dsa and dh code (which had race conditions before). 3759 [Steve Henson] 3760 3761 *) Include the fixed error library code in the C error file definitions 3762 instead of fixing them up at runtime. This keeps the error code 3763 structures constant. 3764 [Steve Henson] 3765 3766 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3767 3768 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3769 OpenSSL 0.9.8.] 3770 3771 *) Fixes for newer kerberos headers. NB: the casts are needed because 3772 the 'length' field is signed on one version and unsigned on another 3773 with no (?) obvious way to tell the difference, without these VC++ 3774 complains. Also the "definition" of FAR (blank) is no longer included 3775 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3776 some needed definitions. 3777 [Steve Henson] 3778 3779 *) Undo Cygwin change. 3780 [Ulf M�ller] 3781 3782 *) Added support for proxy certificates according to RFC 3820. 3783 Because they may be a security thread to unaware applications, 3784 they must be explicitely allowed in run-time. See 3785 docs/HOWTO/proxy_certificates.txt for further information. 3786 [Richard Levitte] 3787 3788 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3789 3790 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3791 server and client random values. Previously 3792 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3793 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3794 3795 This change has negligible security impact because: 3796 3797 1. Server and client random values still have 24 bytes of pseudo random 3798 data. 3799 3800 2. Server and client random values are sent in the clear in the initial 3801 handshake. 3802 3803 3. The master secret is derived using the premaster secret (48 bytes in 3804 size for static RSA ciphersuites) as well as client server and random 3805 values. 3806 3807 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3808 to our attention. 3809 3810 [Stephen Henson, reported by UK NISCC] 3811 3812 *) Use Windows randomness collection on Cygwin. 3813 [Ulf M�ller] 3814 3815 *) Fix hang in EGD/PRNGD query when communication socket is closed 3816 prematurely by EGD/PRNGD. 3817 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3818 3819 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3820 [Steve Henson] 3821 3822 *) Back-port of selected performance improvements from development 3823 branch, as well as improved support for PowerPC platforms. 3824 [Andy Polyakov] 3825 3826 *) Add lots of checks for memory allocation failure, error codes to indicate 3827 failure and freeing up memory if a failure occurs. 3828 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3829 3830 *) Add new -passin argument to dgst. 3831 [Steve Henson] 3832 3833 *) Perform some character comparisons of different types in X509_NAME_cmp: 3834 this is needed for some certificates that reencode DNs into UTF8Strings 3835 (in violation of RFC3280) and can't or wont issue name rollover 3836 certificates. 3837 [Steve Henson] 3838 3839 *) Make an explicit check during certificate validation to see that 3840 the CA setting in each certificate on the chain is correct. As a 3841 side effect always do the following basic checks on extensions, 3842 not just when there's an associated purpose to the check: 3843 3844 - if there is an unhandled critical extension (unless the user 3845 has chosen to ignore this fault) 3846 - if the path length has been exceeded (if one is set at all) 3847 - that certain extensions fit the associated purpose (if one has 3848 been given) 3849 [Richard Levitte] 3850 3851 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3852 3853 *) Avoid a race condition when CRLs are checked in a multi threaded 3854 environment. This would happen due to the reordering of the revoked 3855 entries during signature checking and serial number lookup. Now the 3856 encoding is cached and the serial number sort performed under a lock. 3857 Add new STACK function sk_is_sorted(). 3858 [Steve Henson] 3859 3860 *) Add Delta CRL to the extension code. 3861 [Steve Henson] 3862 3863 *) Various fixes to s3_pkt.c so alerts are sent properly. 3864 [David Holmes <d.holmes@f5.com>] 3865 3866 *) Reduce the chances of duplicate issuer name and serial numbers (in 3867 violation of RFC3280) using the OpenSSL certificate creation utilities. 3868 This is done by creating a random 64 bit value for the initial serial 3869 number when a serial number file is created or when a self signed 3870 certificate is created using 'openssl req -x509'. The initial serial 3871 number file is created using 'openssl x509 -next_serial' in CA.pl 3872 rather than being initialized to 1. 3873 [Steve Henson] 3874 3875 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3876 3877 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3878 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3879 [Joe Orton, Steve Henson] 3880 3881 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3882 (CVE-2004-0112) 3883 [Joe Orton, Steve Henson] 3884 3885 *) Make it possible to have multiple active certificates with the same 3886 subject in the CA index file. This is done only if the keyword 3887 'unique_subject' is set to 'no' in the main CA section (default 3888 if 'CA_default') of the configuration file. The value is saved 3889 with the database itself in a separate index attribute file, 3890 named like the index file with '.attr' appended to the name. 3891 [Richard Levitte] 3892 3893 *) X509 verify fixes. Disable broken certificate workarounds when 3894 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3895 keyUsage extension present. Don't accept CRLs with unhandled critical 3896 extensions: since verify currently doesn't process CRL extensions this 3897 rejects a CRL with *any* critical extensions. Add new verify error codes 3898 for these cases. 3899 [Steve Henson] 3900 3901 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3902 A clarification of RFC2560 will require the use of OCTET STRINGs and 3903 some implementations cannot handle the current raw format. Since OpenSSL 3904 copies and compares OCSP nonces as opaque blobs without any attempt at 3905 parsing them this should not create any compatibility issues. 3906 [Steve Henson] 3907 3908 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3909 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3910 this HMAC (and other) operations are several times slower than OpenSSL 3911 < 0.9.7. 3912 [Steve Henson] 3913 3914 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3915 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3916 3917 *) Use the correct content when signing type "other". 3918 [Steve Henson] 3919 3920 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3921 3922 *) Fix various bugs revealed by running the NISCC test suite: 3923 3924 Stop out of bounds reads in the ASN1 code when presented with 3925 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3926 3927 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3928 3929 If verify callback ignores invalid public key errors don't try to check 3930 certificate signature with the NULL public key. 3931 3932 [Steve Henson] 3933 3934 *) New -ignore_err option in ocsp application to stop the server 3935 exiting on the first error in a request. 3936 [Steve Henson] 3937 3938 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3939 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3940 specifications. 3941 [Steve Henson] 3942 3943 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3944 extra data after the compression methods not only for TLS 1.0 3945 but also for SSL 3.0 (as required by the specification). 3946 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3947 3948 *) Change X509_certificate_type() to mark the key as exported/exportable 3949 when it's 512 *bits* long, not 512 bytes. 3950 [Richard Levitte] 3951 3952 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3953 blocks during encryption. 3954 [Richard Levitte] 3955 3956 *) Various fixes to base64 BIO and non blocking I/O. On write 3957 flushes were not handled properly if the BIO retried. On read 3958 data was not being buffered properly and had various logic bugs. 3959 This also affects blocking I/O when the data being decoded is a 3960 certain size. 3961 [Steve Henson] 3962 3963 *) Various S/MIME bugfixes and compatibility changes: 3964 output correct application/pkcs7 MIME type if 3965 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3966 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3967 of files as .eml work). Correctly handle very long lines in MIME 3968 parser. 3969 [Steve Henson] 3970 3971 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3972 3973 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3974 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3975 a protocol version number mismatch like a decryption error 3976 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3977 [Bodo Moeller] 3978 3979 *) Turn on RSA blinding by default in the default implementation 3980 to avoid a timing attack. Applications that don't want it can call 3981 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 3982 They would be ill-advised to do so in most cases. 3983 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 3984 3985 *) Change RSA blinding code so that it works when the PRNG is not 3986 seeded (in this case, the secret RSA exponent is abused as 3987 an unpredictable seed -- if it is not unpredictable, there 3988 is no point in blinding anyway). Make RSA blinding thread-safe 3989 by remembering the creator's thread ID in rsa->blinding and 3990 having all other threads use local one-time blinding factors 3991 (this requires more computation than sharing rsa->blinding, but 3992 avoids excessive locking; and if an RSA object is not shared 3993 between threads, blinding will still be very fast). 3994 [Bodo Moeller] 3995 3996 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 3997 ENGINE as defaults for all supported algorithms irrespective of 3998 the 'flags' parameter. 'flags' is now honoured, so applications 3999 should make sure they are passing it correctly. 4000 [Geoff Thorpe] 4001 4002 *) Target "mingw" now allows native Windows code to be generated in 4003 the Cygwin environment as well as with the MinGW compiler. 4004 [Ulf Moeller] 4005 4006 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 4007 4008 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 4009 via timing by performing a MAC computation even if incorrrect 4010 block cipher padding has been found. This is a countermeasure 4011 against active attacks where the attacker has to distinguish 4012 between bad padding and a MAC verification error. (CVE-2003-0078) 4013 4014 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 4015 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 4016 Martin Vuagnoux (EPFL, Ilion)] 4017 4018 *) Make the no-err option work as intended. The intention with no-err 4019 is not to have the whole error stack handling routines removed from 4020 libcrypto, it's only intended to remove all the function name and 4021 reason texts, thereby removing some of the footprint that may not 4022 be interesting if those errors aren't displayed anyway. 4023 4024 NOTE: it's still possible for any application or module to have it's 4025 own set of error texts inserted. The routines are there, just not 4026 used by default when no-err is given. 4027 [Richard Levitte] 4028 4029 *) Add support for FreeBSD on IA64. 4030 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 4031 4032 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 4033 Kerberos function mit_des_cbc_cksum(). Before this change, 4034 the value returned by DES_cbc_cksum() was like the one from 4035 mit_des_cbc_cksum(), except the bytes were swapped. 4036 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 4037 4038 *) Allow an application to disable the automatic SSL chain building. 4039 Before this a rather primitive chain build was always performed in 4040 ssl3_output_cert_chain(): an application had no way to send the 4041 correct chain if the automatic operation produced an incorrect result. 4042 4043 Now the chain builder is disabled if either: 4044 4045 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 4046 4047 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 4048 4049 The reasoning behind this is that an application would not want the 4050 auto chain building to take place if extra chain certificates are 4051 present and it might also want a means of sending no additional 4052 certificates (for example the chain has two certificates and the 4053 root is omitted). 4054 [Steve Henson] 4055 4056 *) Add the possibility to build without the ENGINE framework. 4057 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4058 4059 *) Under Win32 gmtime() can return NULL: check return value in 4060 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 4061 [Steve Henson] 4062 4063 *) DSA routines: under certain error conditions uninitialized BN objects 4064 could be freed. Solution: make sure initialization is performed early 4065 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 4066 Nils Larsch <nla@trustcenter.de> via PR#459) 4067 [Lutz Jaenicke] 4068 4069 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 4070 checked on reconnect on the client side, therefore session resumption 4071 could still fail with a "ssl session id is different" error. This 4072 behaviour is masked when SSL_OP_ALL is used due to 4073 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 4074 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4075 followup to PR #377. 4076 [Lutz Jaenicke] 4077 4078 *) IA-32 assembler support enhancements: unified ELF targets, support 4079 for SCO/Caldera platforms, fix for Cygwin shared build. 4080 [Andy Polyakov] 4081 4082 *) Add support for FreeBSD on sparc64. As a consequence, support for 4083 FreeBSD on non-x86 processors is separate from x86 processors on 4084 the config script, much like the NetBSD support. 4085 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 4086 4087 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 4088 4089 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 4090 OpenSSL 0.9.7.] 4091 4092 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 4093 code (06) was taken as the first octet of the session ID and the last 4094 octet was ignored consequently. As a result SSLv2 client side session 4095 caching could not have worked due to the session ID mismatch between 4096 client and server. 4097 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4098 PR #377. 4099 [Lutz Jaenicke] 4100 4101 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 4102 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 4103 removed entirely. 4104 [Richard Levitte] 4105 4106 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 4107 seems that in spite of existing for more than a year, many application 4108 author have done nothing to provide the necessary callbacks, which 4109 means that this particular engine will not work properly anywhere. 4110 This is a very unfortunate situation which forces us, in the name 4111 of usability, to give the hw_ncipher.c a static lock, which is part 4112 of libcrypto. 4113 NOTE: This is for the 0.9.7 series ONLY. This hack will never 4114 appear in 0.9.8 or later. We EXPECT application authors to have 4115 dealt properly with this when 0.9.8 is released (unless we actually 4116 make such changes in the libcrypto locking code that changes will 4117 have to be made anyway). 4118 [Richard Levitte] 4119 4120 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 4121 octets have been read, EOF or an error occurs. Without this change 4122 some truncated ASN1 structures will not produce an error. 4123 [Steve Henson] 4124 4125 *) Disable Heimdal support, since it hasn't been fully implemented. 4126 Still give the possibility to force the use of Heimdal, but with 4127 warnings and a request that patches get sent to openssl-dev. 4128 [Richard Levitte] 4129 4130 *) Add the VC-CE target, introduce the WINCE sysname, and add 4131 INSTALL.WCE and appropriate conditionals to make it build. 4132 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4133 4134 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 4135 cygssl-x.y.z.dll, where x, y and z are the major, minor and 4136 edit numbers of the version. 4137 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 4138 4139 *) Introduce safe string copy and catenation functions 4140 (BUF_strlcpy() and BUF_strlcat()). 4141 [Ben Laurie (CHATS) and Richard Levitte] 4142 4143 *) Avoid using fixed-size buffers for one-line DNs. 4144 [Ben Laurie (CHATS)] 4145 4146 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4147 resizing buffers containing secrets, and use where appropriate. 4148 [Ben Laurie (CHATS)] 4149 4150 *) Avoid using fixed size buffers for configuration file location. 4151 [Ben Laurie (CHATS)] 4152 4153 *) Avoid filename truncation for various CA files. 4154 [Ben Laurie (CHATS)] 4155 4156 *) Use sizeof in preference to magic numbers. 4157 [Ben Laurie (CHATS)] 4158 4159 *) Avoid filename truncation in cert requests. 4160 [Ben Laurie (CHATS)] 4161 4162 *) Add assertions to check for (supposedly impossible) buffer 4163 overflows. 4164 [Ben Laurie (CHATS)] 4165 4166 *) Don't cache truncated DNS entries in the local cache (this could 4167 potentially lead to a spoofing attack). 4168 [Ben Laurie (CHATS)] 4169 4170 *) Fix various buffers to be large enough for hex/decimal 4171 representations in a platform independent manner. 4172 [Ben Laurie (CHATS)] 4173 4174 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4175 resizing buffers containing secrets, and use where appropriate. 4176 [Ben Laurie (CHATS)] 4177 4178 *) Add BIO_indent() to avoid much slightly worrying code to do 4179 indents. 4180 [Ben Laurie (CHATS)] 4181 4182 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4183 [Ben Laurie (CHATS)] 4184 4185 *) buffer_gets() could terminate with the buffer only half 4186 full. Fixed. 4187 [Ben Laurie (CHATS)] 4188 4189 *) Add assertions to prevent user-supplied crypto functions from 4190 overflowing internal buffers by having large block sizes, etc. 4191 [Ben Laurie (CHATS)] 4192 4193 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4194 unconditionally). 4195 [Ben Laurie (CHATS)] 4196 4197 *) Eliminate unused copy of key in RC4. 4198 [Ben Laurie (CHATS)] 4199 4200 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4201 [Ben Laurie (CHATS)] 4202 4203 *) Fix off-by-one error in EGD path. 4204 [Ben Laurie (CHATS)] 4205 4206 *) If RANDFILE path is too long, ignore instead of truncating. 4207 [Ben Laurie (CHATS)] 4208 4209 *) Eliminate unused and incorrectly sized X.509 structure 4210 CBCParameter. 4211 [Ben Laurie (CHATS)] 4212 4213 *) Eliminate unused and dangerous function knumber(). 4214 [Ben Laurie (CHATS)] 4215 4216 *) Eliminate unused and dangerous structure, KSSL_ERR. 4217 [Ben Laurie (CHATS)] 4218 4219 *) Protect against overlong session ID context length in an encoded 4220 session object. Since these are local, this does not appear to be 4221 exploitable. 4222 [Ben Laurie (CHATS)] 4223 4224 *) Change from security patch (see 0.9.6e below) that did not affect 4225 the 0.9.6 release series: 4226 4227 Remote buffer overflow in SSL3 protocol - an attacker could 4228 supply an oversized master key in Kerberos-enabled versions. 4229 (CVE-2002-0657) 4230 [Ben Laurie (CHATS)] 4231 4232 *) Change the SSL kerb5 codes to match RFC 2712. 4233 [Richard Levitte] 4234 4235 *) Make -nameopt work fully for req and add -reqopt switch. 4236 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4237 4238 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4239 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4240 4241 *) Make sure tests can be performed even if the corresponding algorithms 4242 have been removed entirely. This was also the last step to make 4243 OpenSSL compilable with DJGPP under all reasonable conditions. 4244 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4245 4246 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4247 to allow version independent disabling of normally unselected ciphers, 4248 which may be activated as a side-effect of selecting a single cipher. 4249 4250 (E.g., cipher list string "RSA" enables ciphersuites that are left 4251 out of "ALL" because they do not provide symmetric encryption. 4252 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4253 [Lutz Jaenicke, Bodo Moeller] 4254 4255 *) Add appropriate support for separate platform-dependent build 4256 directories. The recommended way to make a platform-dependent 4257 build directory is the following (tested on Linux), maybe with 4258 some local tweaks: 4259 4260 # Place yourself outside of the OpenSSL source tree. In 4261 # this example, the environment variable OPENSSL_SOURCE 4262 # is assumed to contain the absolute OpenSSL source directory. 4263 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4264 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4265 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4266 mkdir -p `dirname $F` 4267 ln -s $OPENSSL_SOURCE/$F $F 4268 done 4269 4270 To be absolutely sure not to disturb the source tree, a "make clean" 4271 is a good thing. If it isn't successfull, don't worry about it, 4272 it probably means the source directory is very clean. 4273 [Richard Levitte] 4274 4275 *) Make sure any ENGINE control commands make local copies of string 4276 pointers passed to them whenever necessary. Otherwise it is possible 4277 the caller may have overwritten (or deallocated) the original string 4278 data when a later ENGINE operation tries to use the stored values. 4279 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4280 4281 *) Improve diagnostics in file reading and command-line digests. 4282 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4283 4284 *) Add AES modes CFB and OFB to the object database. Correct an 4285 error in AES-CFB decryption. 4286 [Richard Levitte] 4287 4288 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4289 allows existing EVP_CIPHER_CTX structures to be reused after 4290 calling EVP_*Final(). This behaviour is used by encryption 4291 BIOs and some applications. This has the side effect that 4292 applications must explicitly clean up cipher contexts with 4293 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4294 [Steve Henson] 4295 4296 *) Check the values of dna and dnb in bn_mul_recursive before calling 4297 bn_mul_comba (a non zero value means the a or b arrays do not contain 4298 n2 elements) and fallback to bn_mul_normal if either is not zero. 4299 [Steve Henson] 4300 4301 *) Fix escaping of non-ASCII characters when using the -subj option 4302 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4303 [Lutz Jaenicke] 4304 4305 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4306 form for "surname", serialNumber has no short form. 4307 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4308 therefore remove "mail" short name for "internet 7". 4309 The OID for unique identifiers in X509 certificates is 4310 x500UniqueIdentifier, not uniqueIdentifier. 4311 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4312 [Lutz Jaenicke] 4313 4314 *) Add an "init" command to the ENGINE config module and auto initialize 4315 ENGINEs. Without any "init" command the ENGINE will be initialized 4316 after all ctrl commands have been executed on it. If init=1 the 4317 ENGINE is initailized at that point (ctrls before that point are run 4318 on the uninitialized ENGINE and after on the initialized one). If 4319 init=0 then the ENGINE will not be iniatialized at all. 4320 [Steve Henson] 4321 4322 *) Fix the 'app_verify_callback' interface so that the user-defined 4323 argument is actually passed to the callback: In the 4324 SSL_CTX_set_cert_verify_callback() prototype, the callback 4325 declaration has been changed from 4326 int (*cb)() 4327 into 4328 int (*cb)(X509_STORE_CTX *,void *); 4329 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4330 i=s->ctx->app_verify_callback(&ctx) 4331 has been changed into 4332 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4333 4334 To update applications using SSL_CTX_set_cert_verify_callback(), 4335 a dummy argument can be added to their callback functions. 4336 [D. K. Smetters <smetters@parc.xerox.com>] 4337 4338 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4339 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4340 4341 *) Add and OPENSSL_LOAD_CONF define which will cause 4342 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4343 This allows older applications to transparently support certain 4344 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4345 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4346 load the config file and OPENSSL_add_all_algorithms_conf() which will 4347 always load it have also been added. 4348 [Steve Henson] 4349 4350 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4351 Adjust NIDs and EVP layer. 4352 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4353 4354 *) Config modules support in openssl utility. 4355 4356 Most commands now load modules from the config file, 4357 though in a few (such as version) this isn't done 4358 because it couldn't be used for anything. 4359 4360 In the case of ca and req the config file used is 4361 the same as the utility itself: that is the -config 4362 command line option can be used to specify an 4363 alternative file. 4364 [Steve Henson] 4365 4366 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4367 use "openssl_conf" if filename is NULL use default openssl config file. 4368 [Steve Henson] 4369 4370 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4371 config section name. Add a new flag to tolerate a missing config file 4372 and move code to CONF_modules_load_file(). 4373 [Steve Henson] 4374 4375 *) Support for crypto accelerator cards from Accelerated Encryption 4376 Processing, www.aep.ie. (Use engine 'aep') 4377 The support was copied from 0.9.6c [engine] and adapted/corrected 4378 to work with the new engine framework. 4379 [AEP Inc. and Richard Levitte] 4380 4381 *) Support for SureWare crypto accelerator cards from Baltimore 4382 Technologies. (Use engine 'sureware') 4383 The support was copied from 0.9.6c [engine] and adapted 4384 to work with the new engine framework. 4385 [Richard Levitte] 4386 4387 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4388 make the newer ENGINE framework commands for the CHIL engine work. 4389 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4390 4391 *) Make it possible to produce shared libraries on ReliantUNIX. 4392 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4393 4394 *) Add the configuration target debug-linux-ppro. 4395 Make 'openssl rsa' use the general key loading routines 4396 implemented in apps.c, and make those routines able to 4397 handle the key format FORMAT_NETSCAPE and the variant 4398 FORMAT_IISSGC. 4399 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4400 4401 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4402 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4403 4404 *) Add -keyform to rsautl, and document -engine. 4405 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4406 4407 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4408 BIO_R_NO_SUCH_FILE error code rather than the generic 4409 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4410 [Ben Laurie] 4411 4412 *) Add new functions 4413 ERR_peek_last_error 4414 ERR_peek_last_error_line 4415 ERR_peek_last_error_line_data. 4416 These are similar to 4417 ERR_peek_error 4418 ERR_peek_error_line 4419 ERR_peek_error_line_data, 4420 but report on the latest error recorded rather than the first one 4421 still in the error queue. 4422 [Ben Laurie, Bodo Moeller] 4423 4424 *) default_algorithms option in ENGINE config module. This allows things 4425 like: 4426 default_algorithms = ALL 4427 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4428 [Steve Henson] 4429 4430 *) Prelminary ENGINE config module. 4431 [Steve Henson] 4432 4433 *) New experimental application configuration code. 4434 [Steve Henson] 4435 4436 *) Change the AES code to follow the same name structure as all other 4437 symmetric ciphers, and behave the same way. Move everything to 4438 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4439 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4440 4441 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4442 [Ben Laurie and Theo de Raadt] 4443 4444 *) Add option to output public keys in req command. 4445 [Massimiliano Pala madwolf@openca.org] 4446 4447 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4448 (up to about 10% better than before for P-192 and P-224). 4449 [Bodo Moeller] 4450 4451 *) New functions/macros 4452 4453 SSL_CTX_set_msg_callback(ctx, cb) 4454 SSL_CTX_set_msg_callback_arg(ctx, arg) 4455 SSL_set_msg_callback(ssl, cb) 4456 SSL_set_msg_callback_arg(ssl, arg) 4457 4458 to request calling a callback function 4459 4460 void cb(int write_p, int version, int content_type, 4461 const void *buf, size_t len, SSL *ssl, void *arg) 4462 4463 whenever a protocol message has been completely received 4464 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4465 protocol version according to which the SSL library interprets 4466 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4467 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4468 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4469 specification (change_cipher_spec(20), alert(21), handshake(22)). 4470 'buf' and 'len' point to the actual message, 'ssl' to the 4471 SSL object, and 'arg' is the application-defined value set by 4472 SSL[_CTX]_set_msg_callback_arg(). 4473 4474 'openssl s_client' and 'openssl s_server' have new '-msg' options 4475 to enable a callback that displays all protocol messages. 4476 [Bodo Moeller] 4477 4478 *) Change the shared library support so shared libraries are built as 4479 soon as the corresponding static library is finished, and thereby get 4480 openssl and the test programs linked against the shared library. 4481 This still only happens when the keyword "shard" has been given to 4482 the configuration scripts. 4483 4484 NOTE: shared library support is still an experimental thing, and 4485 backward binary compatibility is still not guaranteed. 4486 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4487 4488 *) Add support for Subject Information Access extension. 4489 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4490 4491 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4492 additional bytes when new memory had to be allocated, not just 4493 when reusing an existing buffer. 4494 [Bodo Moeller] 4495 4496 *) New command line and configuration option 'utf8' for the req command. 4497 This allows field values to be specified as UTF8 strings. 4498 [Steve Henson] 4499 4500 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4501 runs for the former and machine-readable output for the latter. 4502 [Ben Laurie] 4503 4504 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4505 of the e-mail address in the DN (i.e., it will go into a certificate 4506 extension only). The new configuration file option 'email_in_dn = no' 4507 has the same effect. 4508 [Massimiliano Pala madwolf@openca.org] 4509 4510 *) Change all functions with names starting with des_ to be starting 4511 with DES_ instead. Add wrappers that are compatible with libdes, 4512 but are named _ossl_old_des_*. Finally, add macros that map the 4513 des_* symbols to the corresponding _ossl_old_des_* if libdes 4514 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4515 desired, the des_* symbols will be mapped to DES_*, with one 4516 exception. 4517 4518 Since we provide two compatibility mappings, the user needs to 4519 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4520 compatibility is desired. The default (i.e., when that macro 4521 isn't defined) is OpenSSL 0.9.6c compatibility. 4522 4523 There are also macros that enable and disable the support of old 4524 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4525 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4526 are defined, the default will apply: to support the old des routines. 4527 4528 In either case, one must include openssl/des.h to get the correct 4529 definitions. Do not try to just include openssl/des_old.h, that 4530 won't work. 4531 4532 NOTE: This is a major break of an old API into a new one. Software 4533 authors are encouraged to switch to the DES_ style functions. Some 4534 time in the future, des_old.h and the libdes compatibility functions 4535 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4536 default), and then completely removed. 4537 [Richard Levitte] 4538 4539 *) Test for certificates which contain unsupported critical extensions. 4540 If such a certificate is found during a verify operation it is 4541 rejected by default: this behaviour can be overridden by either 4542 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4543 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4544 X509_supported_extension() has also been added which returns 1 if a 4545 particular extension is supported. 4546 [Steve Henson] 4547 4548 *) Modify the behaviour of EVP cipher functions in similar way to digests 4549 to retain compatibility with existing code. 4550 [Steve Henson] 4551 4552 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4553 compatibility with existing code. In particular the 'ctx' parameter does 4554 not have to be to be initialized before the call to EVP_DigestInit() and 4555 it is tidied up after a call to EVP_DigestFinal(). New function 4556 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4557 EVP_MD_CTX_copy() changed to not require the destination to be 4558 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4559 requires the destination to be valid. 4560 4561 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4562 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4563 [Steve Henson] 4564 4565 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4566 so that complete 'Handshake' protocol structures are kept in memory 4567 instead of overwriting 'msg_type' and 'length' with 'body' data. 4568 [Bodo Moeller] 4569 4570 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4571 [Massimo Santin via Richard Levitte] 4572 4573 *) Major restructuring to the underlying ENGINE code. This includes 4574 reduction of linker bloat, separation of pure "ENGINE" manipulation 4575 (initialisation, etc) from functionality dealing with implementations 4576 of specific crypto iterfaces. This change also introduces integrated 4577 support for symmetric ciphers and digest implementations - so ENGINEs 4578 can now accelerate these by providing EVP_CIPHER and EVP_MD 4579 implementations of their own. This is detailed in crypto/engine/README 4580 as it couldn't be adequately described here. However, there are a few 4581 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4582 were changed in the original introduction of ENGINE code have now 4583 reverted back - the hooking from this code to ENGINE is now a good 4584 deal more passive and at run-time, operations deal directly with 4585 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4586 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4587 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4588 they were not being used by the framework as there is no concept of a 4589 BIGNUM_METHOD and they could not be generalised to the new 4590 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4591 ENGINE_cpy() has been removed as it cannot be consistently defined in 4592 the new code. 4593 [Geoff Thorpe] 4594 4595 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4596 [Steve Henson] 4597 4598 *) Change mkdef.pl to sort symbols that get the same entry number, 4599 and make sure the automatically generated functions ERR_load_* 4600 become part of libeay.num as well. 4601 [Richard Levitte] 4602 4603 *) New function SSL_renegotiate_pending(). This returns true once 4604 renegotiation has been requested (either SSL_renegotiate() call 4605 or HelloRequest/ClientHello receveived from the peer) and becomes 4606 false once a handshake has been completed. 4607 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4608 sends a HelloRequest, but does not ensure that a handshake takes 4609 place. SSL_renegotiate_pending() is useful for checking if the 4610 client has followed the request.) 4611 [Bodo Moeller] 4612 4613 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4614 By default, clients may request session resumption even during 4615 renegotiation (if session ID contexts permit); with this option, 4616 session resumption is possible only in the first handshake. 4617 4618 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4619 more bits available for options that should not be part of 4620 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4621 [Bodo Moeller] 4622 4623 *) Add some demos for certificate and certificate request creation. 4624 [Steve Henson] 4625 4626 *) Make maximum certificate chain size accepted from the peer application 4627 settable (SSL*_get/set_max_cert_list()), as proposed by 4628 "Douglas E. Engert" <deengert@anl.gov>. 4629 [Lutz Jaenicke] 4630 4631 *) Add support for shared libraries for Unixware-7 4632 (Boyd Lynn Gerber <gerberb@zenez.com>). 4633 [Lutz Jaenicke] 4634 4635 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4636 be done prior to destruction. Use this to unload error strings from 4637 ENGINEs that load their own error strings. NB: This adds two new API 4638 functions to "get" and "set" this destroy handler in an ENGINE. 4639 [Geoff Thorpe] 4640 4641 *) Alter all existing ENGINE implementations (except "openssl" and 4642 "openbsd") to dynamically instantiate their own error strings. This 4643 makes them more flexible to be built both as statically-linked ENGINEs 4644 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4645 Also, add stub code to each that makes building them as self-contained 4646 shared-libraries easier (see README.ENGINE). 4647 [Geoff Thorpe] 4648 4649 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4650 implementations into applications that are completely implemented in 4651 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4652 commands that can be used to configure what shared-library to load and 4653 to control aspects of the way it is handled. Also, made an update to 4654 the README.ENGINE file that brings its information up-to-date and 4655 provides some information and instructions on the "dynamic" ENGINE 4656 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4657 [Geoff Thorpe] 4658 4659 *) Make it possible to unload ranges of ERR strings with a new 4660 "ERR_unload_strings" function. 4661 [Geoff Thorpe] 4662 4663 *) Add a copy() function to EVP_MD. 4664 [Ben Laurie] 4665 4666 *) Make EVP_MD routines take a context pointer instead of just the 4667 md_data void pointer. 4668 [Ben Laurie] 4669 4670 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4671 that the digest can only process a single chunk of data 4672 (typically because it is provided by a piece of 4673 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4674 is only going to provide a single chunk of data, and hence the 4675 framework needn't accumulate the data for oneshot drivers. 4676 [Ben Laurie] 4677 4678 *) As with "ERR", make it possible to replace the underlying "ex_data" 4679 functions. This change also alters the storage and management of global 4680 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4681 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4682 index counters. The API functions that use this state have been changed 4683 to take a "class_index" rather than pointers to the class's local STACK 4684 and counter, and there is now an API function to dynamically create new 4685 classes. This centralisation allows us to (a) plug a lot of the 4686 thread-safety problems that existed, and (b) makes it possible to clean 4687 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4688 such data would previously have always leaked in application code and 4689 workarounds were in place to make the memory debugging turn a blind eye 4690 to it. Application code that doesn't use this new function will still 4691 leak as before, but their memory debugging output will announce it now 4692 rather than letting it slide. 4693 4694 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4695 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4696 has a return value to indicate success or failure. 4697 [Geoff Thorpe] 4698 4699 *) Make it possible to replace the underlying "ERR" functions such that the 4700 global state (2 LHASH tables and 2 locks) is only used by the "default" 4701 implementation. This change also adds two functions to "get" and "set" 4702 the implementation prior to it being automatically set the first time 4703 any other ERR function takes place. Ie. an application can call "get", 4704 pass the return value to a module it has just loaded, and that module 4705 can call its own "set" function using that value. This means the 4706 module's "ERR" operations will use (and modify) the error state in the 4707 application and not in its own statically linked copy of OpenSSL code. 4708 [Geoff Thorpe] 4709 4710 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4711 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4712 the operation, and provides a more encapsulated way for external code 4713 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4714 to use these functions rather than manually incrementing the counts. 4715 4716 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4717 [Geoff Thorpe] 4718 4719 *) Add EVP test program. 4720 [Ben Laurie] 4721 4722 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4723 [Ben Laurie] 4724 4725 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4726 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4727 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4728 These allow a CRL to be built without having to access X509_CRL fields 4729 directly. Modify 'ca' application to use new functions. 4730 [Steve Henson] 4731 4732 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4733 bug workarounds. Rollback attack detection is a security feature. 4734 The problem will only arise on OpenSSL servers when TLSv1 is not 4735 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4736 Software authors not wanting to support TLSv1 will have special reasons 4737 for their choice and can explicitly enable this option. 4738 [Bodo Moeller, Lutz Jaenicke] 4739 4740 *) Rationalise EVP so it can be extended: don't include a union of 4741 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4742 (similar to those existing for EVP_CIPHER_CTX). 4743 Usage example: 4744 4745 EVP_MD_CTX md; 4746 4747 EVP_MD_CTX_init(&md); /* new function call */ 4748 EVP_DigestInit(&md, EVP_sha1()); 4749 EVP_DigestUpdate(&md, in, len); 4750 EVP_DigestFinal(&md, out, NULL); 4751 EVP_MD_CTX_cleanup(&md); /* new function call */ 4752 4753 [Ben Laurie] 4754 4755 *) Make DES key schedule conform to the usual scheme, as well as 4756 correcting its structure. This means that calls to DES functions 4757 now have to pass a pointer to a des_key_schedule instead of a 4758 plain des_key_schedule (which was actually always a pointer 4759 anyway): E.g., 4760 4761 des_key_schedule ks; 4762 4763 des_set_key_checked(..., &ks); 4764 des_ncbc_encrypt(..., &ks, ...); 4765 4766 (Note that a later change renames 'des_...' into 'DES_...'.) 4767 [Ben Laurie] 4768 4769 *) Initial reduction of linker bloat: the use of some functions, such as 4770 PEM causes large amounts of unused functions to be linked in due to 4771 poor organisation. For example pem_all.c contains every PEM function 4772 which has a knock on effect of linking in large amounts of (unused) 4773 ASN1 code. Grouping together similar functions and splitting unrelated 4774 functions prevents this. 4775 [Steve Henson] 4776 4777 *) Cleanup of EVP macros. 4778 [Ben Laurie] 4779 4780 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4781 correct _ecb suffix. 4782 [Ben Laurie] 4783 4784 *) Add initial OCSP responder support to ocsp application. The 4785 revocation information is handled using the text based index 4786 use by the ca application. The responder can either handle 4787 requests generated internally, supplied in files (for example 4788 via a CGI script) or using an internal minimal server. 4789 [Steve Henson] 4790 4791 *) Add configuration choices to get zlib compression for TLS. 4792 [Richard Levitte] 4793 4794 *) Changes to Kerberos SSL for RFC 2712 compliance: 4795 1. Implemented real KerberosWrapper, instead of just using 4796 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4797 2. Implemented optional authenticator field of KerberosWrapper. 4798 4799 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4800 and authenticator structs; see crypto/krb5/. 4801 4802 Generalized Kerberos calls to support multiple Kerberos libraries. 4803 [Vern Staats <staatsvr@asc.hpc.mil>, 4804 Jeffrey Altman <jaltman@columbia.edu> 4805 via Richard Levitte] 4806 4807 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4808 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4809 values for each of the key sizes rather than having just 4810 parameters (and 'speed' generating keys each time). 4811 [Geoff Thorpe] 4812 4813 *) Speed up EVP routines. 4814 Before: 4815encrypt 4816type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4817des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4818des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4819des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4820decrypt 4821des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4822des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4823des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4824 After: 4825encrypt 4826des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4827decrypt 4828des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4829 [Ben Laurie] 4830 4831 *) Added the OS2-EMX target. 4832 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4833 4834 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4835 to support NCONF routines in extension code. New function CONF_set_nconf() 4836 to allow functions which take an NCONF to also handle the old LHASH 4837 structure: this means that the old CONF compatible routines can be 4838 retained (in particular wrt extensions) without having to duplicate the 4839 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4840 [Steve Henson] 4841 4842 *) Enhance the general user interface with mechanisms for inner control 4843 and with possibilities to have yes/no kind of prompts. 4844 [Richard Levitte] 4845 4846 *) Change all calls to low level digest routines in the library and 4847 applications to use EVP. Add missing calls to HMAC_cleanup() and 4848 don't assume HMAC_CTX can be copied using memcpy(). 4849 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4850 4851 *) Add the possibility to control engines through control names but with 4852 arbitrary arguments instead of just a string. 4853 Change the key loaders to take a UI_METHOD instead of a callback 4854 function pointer. NOTE: this breaks binary compatibility with earlier 4855 versions of OpenSSL [engine]. 4856 Adapt the nCipher code for these new conditions and add a card insertion 4857 callback. 4858 [Richard Levitte] 4859 4860 *) Enhance the general user interface with mechanisms to better support 4861 dialog box interfaces, application-defined prompts, the possibility 4862 to use defaults (for example default passwords from somewhere else) 4863 and interrupts/cancellations. 4864 [Richard Levitte] 4865 4866 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4867 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4868 [Steve Henson] 4869 4870 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4871 tidy up some unnecessarily weird code in 'sk_new()'). 4872 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4873 4874 *) Change the key loading routines for ENGINEs to use the same kind 4875 callback (pem_password_cb) as all other routines that need this 4876 kind of callback. 4877 [Richard Levitte] 4878 4879 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4880 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4881 than this minimum value is recommended. 4882 [Lutz Jaenicke] 4883 4884 *) New random seeder for OpenVMS, using the system process statistics 4885 that are easily reachable. 4886 [Richard Levitte] 4887 4888 *) Windows apparently can't transparently handle global 4889 variables defined in DLLs. Initialisations such as: 4890 4891 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4892 4893 wont compile. This is used by the any applications that need to 4894 declare their own ASN1 modules. This was fixed by adding the option 4895 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4896 needed for static libraries under Win32. 4897 [Steve Henson] 4898 4899 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4900 setting of purpose and trust fields. New X509_STORE trust and 4901 purpose functions and tidy up setting in other SSL functions. 4902 [Steve Henson] 4903 4904 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4905 structure. These are inherited by X509_STORE_CTX when it is 4906 initialised. This allows various defaults to be set in the 4907 X509_STORE structure (such as flags for CRL checking and custom 4908 purpose or trust settings) for functions which only use X509_STORE_CTX 4909 internally such as S/MIME. 4910 4911 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4912 trust settings if they are not set in X509_STORE. This allows X509_STORE 4913 purposes and trust (in S/MIME for example) to override any set by default. 4914 4915 Add command line options for CRL checking to smime, s_client and s_server 4916 applications. 4917 [Steve Henson] 4918 4919 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4920 are set then the CRL is looked up in the X509_STORE structure and 4921 its validity and signature checked, then if the certificate is found 4922 in the CRL the verify fails with a revoked error. 4923 4924 Various new CRL related callbacks added to X509_STORE_CTX structure. 4925 4926 Command line options added to 'verify' application to support this. 4927 4928 This needs some additional work, such as being able to handle multiple 4929 CRLs with different times, extension based lookup (rather than just 4930 by subject name) and ultimately more complete V2 CRL extension 4931 handling. 4932 [Steve Henson] 4933 4934 *) Add a general user interface API (crypto/ui/). This is designed 4935 to replace things like des_read_password and friends (backward 4936 compatibility functions using this new API are provided). 4937 The purpose is to remove prompting functions from the DES code 4938 section as well as provide for prompting through dialog boxes in 4939 a window system and the like. 4940 [Richard Levitte] 4941 4942 *) Add "ex_data" support to ENGINE so implementations can add state at a 4943 per-structure level rather than having to store it globally. 4944 [Geoff] 4945 4946 *) Make it possible for ENGINE structures to be copied when retrieved by 4947 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4948 This causes the "original" ENGINE structure to act like a template, 4949 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4950 operational state can be localised to each ENGINE structure, despite the 4951 fact they all share the same "methods". New ENGINE structures returned in 4952 this case have no functional references and the return value is the single 4953 structural reference. This matches the single structural reference returned 4954 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4955 ENGINE structure. 4956 [Geoff] 4957 4958 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4959 needs to match any other type at all we need to manually clear the 4960 tag cache. 4961 [Steve Henson] 4962 4963 *) Changes to the "openssl engine" utility to include; 4964 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4965 about an ENGINE's available control commands. 4966 - executing control commands from command line arguments using the 4967 '-pre' and '-post' switches. '-post' is only used if '-t' is 4968 specified and the ENGINE is successfully initialised. The syntax for 4969 the individual commands are colon-separated, for example; 4970 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4971 [Geoff] 4972 4973 *) New dynamic control command support for ENGINEs. ENGINEs can now 4974 declare their own commands (numbers), names (strings), descriptions, 4975 and input types for run-time discovery by calling applications. A 4976 subset of these commands are implicitly classed as "executable" 4977 depending on their input type, and only these can be invoked through 4978 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 4979 can be based on user input, config files, etc). The distinction is 4980 that "executable" commands cannot return anything other than a boolean 4981 result and can only support numeric or string input, whereas some 4982 discoverable commands may only be for direct use through 4983 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 4984 pointers, or other custom uses. The "executable" commands are to 4985 support parameterisations of ENGINE behaviour that can be 4986 unambiguously defined by ENGINEs and used consistently across any 4987 OpenSSL-based application. Commands have been added to all the 4988 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 4989 control over shared-library paths without source code alterations. 4990 [Geoff] 4991 4992 *) Changed all ENGINE implementations to dynamically allocate their 4993 ENGINEs rather than declaring them statically. Apart from this being 4994 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 4995 this also allows the implementations to compile without using the 4996 internal engine_int.h header. 4997 [Geoff] 4998 4999 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 5000 'const' value. Any code that should be able to modify a RAND_METHOD 5001 should already have non-const pointers to it (ie. they should only 5002 modify their own ones). 5003 [Geoff] 5004 5005 *) Made a variety of little tweaks to the ENGINE code. 5006 - "atalla" and "ubsec" string definitions were moved from header files 5007 to C code. "nuron" string definitions were placed in variables 5008 rather than hard-coded - allowing parameterisation of these values 5009 later on via ctrl() commands. 5010 - Removed unused "#if 0"'d code. 5011 - Fixed engine list iteration code so it uses ENGINE_free() to release 5012 structural references. 5013 - Constified the RAND_METHOD element of ENGINE structures. 5014 - Constified various get/set functions as appropriate and added 5015 missing functions (including a catch-all ENGINE_cpy that duplicates 5016 all ENGINE values onto a new ENGINE except reference counts/state). 5017 - Removed NULL parameter checks in get/set functions. Setting a method 5018 or function to NULL is a way of cancelling out a previously set 5019 value. Passing a NULL ENGINE parameter is just plain stupid anyway 5020 and doesn't justify the extra error symbols and code. 5021 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 5022 flags from engine_int.h to engine.h. 5023 - Changed prototypes for ENGINE handler functions (init(), finish(), 5024 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 5025 [Geoff] 5026 5027 *) Implement binary inversion algorithm for BN_mod_inverse in addition 5028 to the algorithm using long division. The binary algorithm can be 5029 used only if the modulus is odd. On 32-bit systems, it is faster 5030 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 5031 roughly 5-15% for 256-bit moduli), so we use it only for moduli 5032 up to 450 bits. In 64-bit environments, the binary algorithm 5033 appears to be advantageous for much longer moduli; here we use it 5034 for moduli up to 2048 bits. 5035 [Bodo Moeller] 5036 5037 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 5038 could not support the combine flag in choice fields. 5039 [Steve Henson] 5040 5041 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 5042 extensions from a certificate request to the certificate. 5043 [Steve Henson] 5044 5045 *) Allow multiple 'certopt' and 'nameopt' options to be separated 5046 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 5047 file: this allows the display of the certificate about to be 5048 signed to be customised, to allow certain fields to be included 5049 or excluded and extension details. The old system didn't display 5050 multicharacter strings properly, omitted fields not in the policy 5051 and couldn't display additional details such as extensions. 5052 [Steve Henson] 5053 5054 *) Function EC_POINTs_mul for multiple scalar multiplication 5055 of an arbitrary number of elliptic curve points 5056 \sum scalars[i]*points[i], 5057 optionally including the generator defined for the EC_GROUP: 5058 scalar*generator + \sum scalars[i]*points[i]. 5059 5060 EC_POINT_mul is a simple wrapper function for the typical case 5061 that the point list has just one item (besides the optional 5062 generator). 5063 [Bodo Moeller] 5064 5065 *) First EC_METHODs for curves over GF(p): 5066 5067 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 5068 operations and provides various method functions that can also 5069 operate with faster implementations of modular arithmetic. 5070 5071 EC_GFp_mont_method() reuses most functions that are part of 5072 EC_GFp_simple_method, but uses Montgomery arithmetic. 5073 5074 [Bodo Moeller; point addition and point doubling 5075 implementation directly derived from source code provided by 5076 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 5077 5078 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 5079 crypto/ec/ec_lib.c): 5080 5081 Curves are EC_GROUP objects (with an optional group generator) 5082 based on EC_METHODs that are built into the library. 5083 5084 Points are EC_POINT objects based on EC_GROUP objects. 5085 5086 Most of the framework would be able to handle curves over arbitrary 5087 finite fields, but as there are no obvious types for fields other 5088 than GF(p), some functions are limited to that for now. 5089 [Bodo Moeller] 5090 5091 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 5092 that the file contains a complete HTTP response. 5093 [Richard Levitte] 5094 5095 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 5096 change the def and num file printf format specifier from "%-40sXXX" 5097 to "%-39s XXX". The latter will always guarantee a space after the 5098 field while the former will cause them to run together if the field 5099 is 40 of more characters long. 5100 [Steve Henson] 5101 5102 *) Constify the cipher and digest 'method' functions and structures 5103 and modify related functions to take constant EVP_MD and EVP_CIPHER 5104 pointers. 5105 [Steve Henson] 5106 5107 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 5108 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 5109 [Bodo Moeller] 5110 5111 *) Modify EVP_Digest*() routines so they now return values. Although the 5112 internal software routines can never fail additional hardware versions 5113 might. 5114 [Steve Henson] 5115 5116 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 5117 5118 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 5119 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 5120 5121 ASN1 error codes 5122 ERR_R_NESTED_ASN1_ERROR 5123 ... 5124 ERR_R_MISSING_ASN1_EOS 5125 were 4 .. 9, conflicting with 5126 ERR_LIB_RSA (= ERR_R_RSA_LIB) 5127 ... 5128 ERR_LIB_PEM (= ERR_R_PEM_LIB). 5129 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 5130 5131 Add new error code 'ERR_R_INTERNAL_ERROR'. 5132 [Bodo Moeller] 5133 5134 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 5135 suffices. 5136 [Bodo Moeller] 5137 5138 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 5139 sets the subject name for a new request or supersedes the 5140 subject name in a given request. Formats that can be parsed are 5141 'CN=Some Name, OU=myOU, C=IT' 5142 and 5143 'CN=Some Name/OU=myOU/C=IT'. 5144 5145 Add options '-batch' and '-verbose' to 'openssl req'. 5146 [Massimiliano Pala <madwolf@hackmasters.net>] 5147 5148 *) Introduce the possibility to access global variables through 5149 functions on platform were that's the best way to handle exporting 5150 global variables in shared libraries. To enable this functionality, 5151 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5152 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5153 is normally done by Configure or something similar). 5154 5155 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5156 in the source file (foo.c) like this: 5157 5158 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5159 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5160 5161 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5162 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5163 5164 OPENSSL_DECLARE_GLOBAL(int,foo); 5165 #define foo OPENSSL_GLOBAL_REF(foo) 5166 OPENSSL_DECLARE_GLOBAL(double,bar); 5167 #define bar OPENSSL_GLOBAL_REF(bar) 5168 5169 The #defines are very important, and therefore so is including the 5170 header file everywhere where the defined globals are used. 5171 5172 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5173 of ASN.1 items, but that structure is a bit different. 5174 5175 The largest change is in util/mkdef.pl which has been enhanced with 5176 better and easier to understand logic to choose which symbols should 5177 go into the Windows .def files as well as a number of fixes and code 5178 cleanup (among others, algorithm keywords are now sorted 5179 lexicographically to avoid constant rewrites). 5180 [Richard Levitte] 5181 5182 *) In BN_div() keep a copy of the sign of 'num' before writing the 5183 result to 'rm' because if rm==num the value will be overwritten 5184 and produce the wrong result if 'num' is negative: this caused 5185 problems with BN_mod() and BN_nnmod(). 5186 [Steve Henson] 5187 5188 *) Function OCSP_request_verify(). This checks the signature on an 5189 OCSP request and verifies the signer certificate. The signer 5190 certificate is just checked for a generic purpose and OCSP request 5191 trust settings. 5192 [Steve Henson] 5193 5194 *) Add OCSP_check_validity() function to check the validity of OCSP 5195 responses. OCSP responses are prepared in real time and may only 5196 be a few seconds old. Simply checking that the current time lies 5197 between thisUpdate and nextUpdate max reject otherwise valid responses 5198 caused by either OCSP responder or client clock inaccuracy. Instead 5199 we allow thisUpdate and nextUpdate to fall within a certain period of 5200 the current time. The age of the response can also optionally be 5201 checked. Two new options -validity_period and -status_age added to 5202 ocsp utility. 5203 [Steve Henson] 5204 5205 *) If signature or public key algorithm is unrecognized print out its 5206 OID rather that just UNKNOWN. 5207 [Steve Henson] 5208 5209 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5210 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5211 ID to be generated from the issuer certificate alone which can then be 5212 passed to OCSP_id_issuer_cmp(). 5213 [Steve Henson] 5214 5215 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5216 ASN1 modules to export functions returning ASN1_ITEM pointers 5217 instead of the ASN1_ITEM structures themselves. This adds several 5218 new macros which allow the underlying ASN1 function/structure to 5219 be accessed transparently. As a result code should not use ASN1_ITEM 5220 references directly (such as &X509_it) but instead use the relevant 5221 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5222 use of the new ASN1 code on platforms where exporting structures 5223 is problematical (for example in shared libraries) but exporting 5224 functions returning pointers to structures is not. 5225 [Steve Henson] 5226 5227 *) Add support for overriding the generation of SSL/TLS session IDs. 5228 These callbacks can be registered either in an SSL_CTX or per SSL. 5229 The purpose of this is to allow applications to control, if they wish, 5230 the arbitrary values chosen for use as session IDs, particularly as it 5231 can be useful for session caching in multiple-server environments. A 5232 command-line switch for testing this (and any client code that wishes 5233 to use such a feature) has been added to "s_server". 5234 [Geoff Thorpe, Lutz Jaenicke] 5235 5236 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5237 of the form '#if defined(...) || defined(...) || ...' and 5238 '#if !defined(...) && !defined(...) && ...'. This also avoids 5239 the growing number of special cases it was previously handling. 5240 [Richard Levitte] 5241 5242 *) Make all configuration macros available for application by making 5243 sure they are available in opensslconf.h, by giving them names starting 5244 with "OPENSSL_" to avoid conflicts with other packages and by making 5245 sure e_os2.h will cover all platform-specific cases together with 5246 opensslconf.h. 5247 Additionally, it is now possible to define configuration/platform- 5248 specific names (called "system identities"). In the C code, these 5249 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5250 macro with the name beginning with "OPENSSL_SYS_", which is determined 5251 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5252 what is available. 5253 [Richard Levitte] 5254 5255 *) New option -set_serial to 'req' and 'x509' this allows the serial 5256 number to use to be specified on the command line. Previously self 5257 signed certificates were hard coded with serial number 0 and the 5258 CA options of 'x509' had to use a serial number in a file which was 5259 auto incremented. 5260 [Steve Henson] 5261 5262 *) New options to 'ca' utility to support V2 CRL entry extensions. 5263 Currently CRL reason, invalidity date and hold instruction are 5264 supported. Add new CRL extensions to V3 code and some new objects. 5265 [Steve Henson] 5266 5267 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5268 disable standard block padding (aka PKCS#5 padding) in the EVP 5269 API, which was previously mandatory. This means that the data is 5270 not padded in any way and so the total length much be a multiple 5271 of the block size, otherwise an error occurs. 5272 [Steve Henson] 5273 5274 *) Initial (incomplete) OCSP SSL support. 5275 [Steve Henson] 5276 5277 *) New function OCSP_parse_url(). This splits up a URL into its host, 5278 port and path components: primarily to parse OCSP URLs. New -url 5279 option to ocsp utility. 5280 [Steve Henson] 5281 5282 *) New nonce behavior. The return value of OCSP_check_nonce() now 5283 reflects the various checks performed. Applications can decide 5284 whether to tolerate certain situations such as an absent nonce 5285 in a response when one was present in a request: the ocsp application 5286 just prints out a warning. New function OCSP_add1_basic_nonce() 5287 this is to allow responders to include a nonce in a response even if 5288 the request is nonce-less. 5289 [Steve Henson] 5290 5291 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5292 skipped when using openssl x509 multiple times on a single input file, 5293 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5294 [Bodo Moeller] 5295 5296 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5297 set string type: to handle setting ASN1_TIME structures. Fix ca 5298 utility to correctly initialize revocation date of CRLs. 5299 [Steve Henson] 5300 5301 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5302 the clients preferred ciphersuites and rather use its own preferences. 5303 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5304 Internet Explorer by ensuring unchanged hash method during stepup. 5305 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5306 [Lutz Jaenicke] 5307 5308 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5309 to aes and add a new 'exist' option to print out symbols that don't 5310 appear to exist. 5311 [Steve Henson] 5312 5313 *) Additional options to ocsp utility to allow flags to be set and 5314 additional certificates supplied. 5315 [Steve Henson] 5316 5317 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5318 OCSP client a number of certificate to only verify the response 5319 signature against. 5320 [Richard Levitte] 5321 5322 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5323 handle the new API. Currently only ECB, CBC modes supported. Add new 5324 AES OIDs. 5325 5326 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5327 Encryption Standard (AES) Ciphersuites for Transport Layer 5328 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5329 not enabled by default and were not part of the "ALL" ciphersuite 5330 alias because they were not yet official; they could be 5331 explicitly requested by specifying the "AESdraft" ciphersuite 5332 group alias. In the final release of OpenSSL 0.9.7, the group 5333 alias is called "AES" and is part of "ALL".) 5334 [Ben Laurie, Steve Henson, Bodo Moeller] 5335 5336 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5337 request to response. 5338 [Steve Henson] 5339 5340 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5341 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5342 extract information from a certificate request. OCSP_response_create() 5343 creates a response and optionally adds a basic response structure. 5344 OCSP_basic_add1_status() adds a complete single response to a basic 5345 response and returns the OCSP_SINGLERESP structure just added (to allow 5346 extensions to be included for example). OCSP_basic_add1_cert() adds a 5347 certificate to a basic response and OCSP_basic_sign() signs a basic 5348 response with various flags. New helper functions ASN1_TIME_check() 5349 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5350 (converts ASN1_TIME to GeneralizedTime). 5351 [Steve Henson] 5352 5353 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5354 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5355 structure from a certificate. X509_pubkey_digest() digests the public_key 5356 contents: this is used in various key identifiers. 5357 [Steve Henson] 5358 5359 *) Make sk_sort() tolerate a NULL argument. 5360 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5361 5362 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5363 passed by the function are trusted implicitly. If any of them signed the 5364 response then it is assumed to be valid and is not verified. 5365 [Steve Henson] 5366 5367 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5368 to data. This was previously part of the PKCS7 ASN1 code. This 5369 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5370 [Steve Henson, reported by Kenneth R. Robinette 5371 <support@securenetterm.com>] 5372 5373 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5374 routines: without these tracing memory leaks is very painful. 5375 Fix leaks in PKCS12 and PKCS7 routines. 5376 [Steve Henson] 5377 5378 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5379 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5380 effectively meant GeneralizedTime would never be used. Now it 5381 is initialised to -1 but X509_time_adj() now has to check the value 5382 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5383 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5384 [Steve Henson, reported by Kenneth R. Robinette 5385 <support@securenetterm.com>] 5386 5387 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5388 result in a zero length in the ASN1_INTEGER structure which was 5389 not consistent with the structure when d2i_ASN1_INTEGER() was used 5390 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5391 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5392 where it did not print out a minus for negative ASN1_INTEGER. 5393 [Steve Henson] 5394 5395 *) Add summary printout to ocsp utility. The various functions which 5396 convert status values to strings have been renamed to: 5397 OCSP_response_status_str(), OCSP_cert_status_str() and 5398 OCSP_crl_reason_str() and are no longer static. New options 5399 to verify nonce values and to disable verification. OCSP response 5400 printout format cleaned up. 5401 [Steve Henson] 5402 5403 *) Add additional OCSP certificate checks. These are those specified 5404 in RFC2560. This consists of two separate checks: the CA of the 5405 certificate being checked must either be the OCSP signer certificate 5406 or the issuer of the OCSP signer certificate. In the latter case the 5407 OCSP signer certificate must contain the OCSP signing extended key 5408 usage. This check is performed by attempting to match the OCSP 5409 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5410 in the OCSP_CERTID structures of the response. 5411 [Steve Henson] 5412 5413 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5414 and related routines. This uses the standard OpenSSL certificate 5415 verify routines to perform initial checks (just CA validity) and 5416 to obtain the certificate chain. Then additional checks will be 5417 performed on the chain. Currently the root CA is checked to see 5418 if it is explicitly trusted for OCSP signing. This is used to set 5419 a root CA as a global signing root: that is any certificate that 5420 chains to that CA is an acceptable OCSP signing certificate. 5421 [Steve Henson] 5422 5423 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5424 extensions from a separate configuration file. 5425 As when reading extensions from the main configuration file, 5426 the '-extensions ...' option may be used for specifying the 5427 section to use. 5428 [Massimiliano Pala <madwolf@comune.modena.it>] 5429 5430 *) New OCSP utility. Allows OCSP requests to be generated or 5431 read. The request can be sent to a responder and the output 5432 parsed, outputed or printed in text form. Not complete yet: 5433 still needs to check the OCSP response validity. 5434 [Steve Henson] 5435 5436 *) New subcommands for 'openssl ca': 5437 'openssl ca -status <serial>' prints the status of the cert with 5438 the given serial number (according to the index file). 5439 'openssl ca -updatedb' updates the expiry status of certificates 5440 in the index file. 5441 [Massimiliano Pala <madwolf@comune.modena.it>] 5442 5443 *) New '-newreq-nodes' command option to CA.pl. This is like 5444 '-newreq', but calls 'openssl req' with the '-nodes' option 5445 so that the resulting key is not encrypted. 5446 [Damien Miller <djm@mindrot.org>] 5447 5448 *) New configuration for the GNU Hurd. 5449 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5450 5451 *) Initial code to implement OCSP basic response verify. This 5452 is currently incomplete. Currently just finds the signer's 5453 certificate and verifies the signature on the response. 5454 [Steve Henson] 5455 5456 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5457 value of OPENSSLDIR. This is available via the new '-d' option 5458 to 'openssl version', and is also included in 'openssl version -a'. 5459 [Bodo Moeller] 5460 5461 *) Allowing defining memory allocation callbacks that will be given 5462 file name and line number information in additional arguments 5463 (a const char* and an int). The basic functionality remains, as 5464 well as the original possibility to just replace malloc(), 5465 realloc() and free() by functions that do not know about these 5466 additional arguments. To register and find out the current 5467 settings for extended allocation functions, the following 5468 functions are provided: 5469 5470 CRYPTO_set_mem_ex_functions 5471 CRYPTO_set_locked_mem_ex_functions 5472 CRYPTO_get_mem_ex_functions 5473 CRYPTO_get_locked_mem_ex_functions 5474 5475 These work the same way as CRYPTO_set_mem_functions and friends. 5476 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5477 extended allocation function is enabled. 5478 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5479 a conventional allocation function is enabled. 5480 [Richard Levitte, Bodo Moeller] 5481 5482 *) Finish off removing the remaining LHASH function pointer casts. 5483 There should no longer be any prototype-casting required when using 5484 the LHASH abstraction, and any casts that remain are "bugs". See 5485 the callback types and macros at the head of lhash.h for details 5486 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5487 [Geoff Thorpe] 5488 5489 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5490 If /dev/[u]random devices are not available or do not return enough 5491 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5492 be queried. 5493 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5494 /etc/entropy will be queried once each in this sequence, quering stops 5495 when enough entropy was collected without querying more sockets. 5496 [Lutz Jaenicke] 5497 5498 *) Change the Unix RAND_poll() variant to be able to poll several 5499 random devices, as specified by DEVRANDOM, until a sufficient amount 5500 of data has been collected. We spend at most 10 ms on each file 5501 (select timeout) and read in non-blocking mode. DEVRANDOM now 5502 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5503 (previously it was just the string "/dev/urandom"), so on typical 5504 platforms the 10 ms delay will never occur. 5505 Also separate out the Unix variant to its own file, rand_unix.c. 5506 For VMS, there's a currently-empty rand_vms.c. 5507 [Richard Levitte] 5508 5509 *) Move OCSP client related routines to ocsp_cl.c. These 5510 provide utility functions which an application needing 5511 to issue a request to an OCSP responder and analyse the 5512 response will typically need: as opposed to those which an 5513 OCSP responder itself would need which will be added later. 5514 5515 OCSP_request_sign() signs an OCSP request with an API similar 5516 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5517 response. OCSP_response_get1_basic() extracts basic response 5518 from response. OCSP_resp_find_status(): finds and extracts status 5519 information from an OCSP_CERTID structure (which will be created 5520 when the request structure is built). These are built from lower 5521 level functions which work on OCSP_SINGLERESP structures but 5522 wont normally be used unless the application wishes to examine 5523 extensions in the OCSP response for example. 5524 5525 Replace nonce routines with a pair of functions. 5526 OCSP_request_add1_nonce() adds a nonce value and optionally 5527 generates a random value. OCSP_check_nonce() checks the 5528 validity of the nonce in an OCSP response. 5529 [Steve Henson] 5530 5531 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5532 This doesn't copy the supplied OCSP_CERTID and avoids the 5533 need to free up the newly created id. Change return type 5534 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5535 This can then be used to add extensions to the request. 5536 Deleted OCSP_request_new(), since most of its functionality 5537 is now in OCSP_REQUEST_new() (and the case insensitive name 5538 clash) apart from the ability to set the request name which 5539 will be added elsewhere. 5540 [Steve Henson] 5541 5542 *) Update OCSP API. Remove obsolete extensions argument from 5543 various functions. Extensions are now handled using the new 5544 OCSP extension code. New simple OCSP HTTP function which 5545 can be used to send requests and parse the response. 5546 [Steve Henson] 5547 5548 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5549 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5550 uses the special reorder version of SET OF to sort the attributes 5551 and reorder them to match the encoded order. This resolves a long 5552 standing problem: a verify on a PKCS7 structure just after signing 5553 it used to fail because the attribute order did not match the 5554 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5555 it uses the received order. This is necessary to tolerate some broken 5556 software that does not order SET OF. This is handled by encoding 5557 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5558 to produce the required SET OF. 5559 [Steve Henson] 5560 5561 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5562 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5563 files to get correct declarations of the ASN.1 item variables. 5564 [Richard Levitte] 5565 5566 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5567 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5568 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5569 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5570 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5571 ASN1_ITEM and no wrapper functions. 5572 [Steve Henson] 5573 5574 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5575 replace the old function pointer based I/O routines. Change most of 5576 the *_d2i_bio() and *_d2i_fp() functions to use these. 5577 [Steve Henson] 5578 5579 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5580 lines, recognice more "algorithms" that can be deselected, and make 5581 it complain about algorithm deselection that isn't recognised. 5582 [Richard Levitte] 5583 5584 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5585 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5586 to use new functions. Add NO_ASN1_OLD which can be set to remove 5587 some old style ASN1 functions: this can be used to determine if old 5588 code will still work when these eventually go away. 5589 [Steve Henson] 5590 5591 *) New extension functions for OCSP structures, these follow the 5592 same conventions as certificates and CRLs. 5593 [Steve Henson] 5594 5595 *) New function X509V3_add1_i2d(). This automatically encodes and 5596 adds an extension. Its behaviour can be customised with various 5597 flags to append, replace or delete. Various wrappers added for 5598 certifcates and CRLs. 5599 [Steve Henson] 5600 5601 *) Fix to avoid calling the underlying ASN1 print routine when 5602 an extension cannot be parsed. Correct a typo in the 5603 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5604 [Steve Henson] 5605 5606 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5607 entries for variables. 5608 [Steve Henson] 5609 5610 *) Add functionality to apps/openssl.c for detecting locking 5611 problems: As the program is single-threaded, all we have 5612 to do is register a locking callback using an array for 5613 storing which locks are currently held by the program. 5614 [Bodo Moeller] 5615 5616 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5617 SSL_get_ex_data_X509_STORE_idx(), which is used in 5618 ssl_verify_cert_chain() and thus can be called at any time 5619 during TLS/SSL handshakes so that thread-safety is essential. 5620 Unfortunately, the ex_data design is not at all suited 5621 for multi-threaded use, so it probably should be abolished. 5622 [Bodo Moeller] 5623 5624 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5625 [Broadcom, tweaked and integrated by Geoff Thorpe] 5626 5627 *) Move common extension printing code to new function 5628 X509V3_print_extensions(). Reorganise OCSP print routines and 5629 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5630 [Steve Henson] 5631 5632 *) New function X509_signature_print() to remove duplication in some 5633 print routines. 5634 [Steve Henson] 5635 5636 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5637 set (this was treated exactly the same as SET OF previously). This 5638 is used to reorder the STACK representing the structure to match the 5639 encoding. This will be used to get round a problem where a PKCS7 5640 structure which was signed could not be verified because the STACK 5641 order did not reflect the encoded order. 5642 [Steve Henson] 5643 5644 *) Reimplement the OCSP ASN1 module using the new code. 5645 [Steve Henson] 5646 5647 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5648 for its ASN1 operations. The old style function pointers still exist 5649 for now but they will eventually go away. 5650 [Steve Henson] 5651 5652 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5653 completely replaces the old ASN1 functionality with a table driven 5654 encoder and decoder which interprets an ASN1_ITEM structure describing 5655 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5656 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5657 has also been converted to the new form. 5658 [Steve Henson] 5659 5660 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5661 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5662 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5663 for negative moduli. 5664 [Bodo Moeller] 5665 5666 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5667 of not touching the result's sign bit. 5668 [Bodo Moeller] 5669 5670 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5671 set. 5672 [Bodo Moeller] 5673 5674 *) Changed the LHASH code to use prototypes for callbacks, and created 5675 macros to declare and implement thin (optionally static) functions 5676 that provide type-safety and avoid function pointer casting for the 5677 type-specific callbacks. 5678 [Geoff Thorpe] 5679 5680 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5681 RFC 2712. 5682 [Veers Staats <staatsvr@asc.hpc.mil>, 5683 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5684 5685 *) Reformat the FAQ so the different questions and answers can be divided 5686 in sections depending on the subject. 5687 [Richard Levitte] 5688 5689 *) Have the zlib compression code load ZLIB.DLL dynamically under 5690 Windows. 5691 [Richard Levitte] 5692 5693 *) New function BN_mod_sqrt for computing square roots modulo a prime 5694 (using the probabilistic Tonelli-Shanks algorithm unless 5695 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5696 be handled deterministically). 5697 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5698 5699 *) Make BN_mod_inverse faster by explicitly handling small quotients 5700 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5701 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5702 [Bodo Moeller] 5703 5704 *) New function BN_kronecker. 5705 [Bodo Moeller] 5706 5707 *) Fix BN_gcd so that it works on negative inputs; the result is 5708 positive unless both parameters are zero. 5709 Previously something reasonably close to an infinite loop was 5710 possible because numbers could be growing instead of shrinking 5711 in the implementation of Euclid's algorithm. 5712 [Bodo Moeller] 5713 5714 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5715 sign of the number in question. 5716 5717 Fix BN_is_word(a,w) to work correctly for w == 0. 5718 5719 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5720 because its test if the absolute value of 'a' equals 'w'. 5721 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5722 it exists mostly for use in the implementations of BN_is_zero(), 5723 BN_is_one(), and BN_is_word(). 5724 [Bodo Moeller] 5725 5726 *) New function BN_swap. 5727 [Bodo Moeller] 5728 5729 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5730 the exponentiation functions are more likely to produce reasonable 5731 results on negative inputs. 5732 [Bodo Moeller] 5733 5734 *) Change BN_mod_mul so that the result is always non-negative. 5735 Previously, it could be negative if one of the factors was negative; 5736 I don't think anyone really wanted that behaviour. 5737 [Bodo Moeller] 5738 5739 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5740 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5741 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5742 and add new functions: 5743 5744 BN_nnmod 5745 BN_mod_sqr 5746 BN_mod_add 5747 BN_mod_add_quick 5748 BN_mod_sub 5749 BN_mod_sub_quick 5750 BN_mod_lshift1 5751 BN_mod_lshift1_quick 5752 BN_mod_lshift 5753 BN_mod_lshift_quick 5754 5755 These functions always generate non-negative results. 5756 5757 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5758 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5759 5760 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5761 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5762 be reduced modulo m. 5763 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5764 5765#if 0 5766 The following entry accidentily appeared in the CHANGES file 5767 distributed with OpenSSL 0.9.7. The modifications described in 5768 it do *not* apply to OpenSSL 0.9.7. 5769 5770 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5771 was actually never needed) and in BN_mul(). The removal in BN_mul() 5772 required a small change in bn_mul_part_recursive() and the addition 5773 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5774 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5775 bn_sub_words() and bn_add_words() except they take arrays with 5776 differing sizes. 5777 [Richard Levitte] 5778#endif 5779 5780 *) In 'openssl passwd', verify passwords read from the terminal 5781 unless the '-salt' option is used (which usually means that 5782 verification would just waste user's time since the resulting 5783 hash is going to be compared with some given password hash) 5784 or the new '-noverify' option is used. 5785 5786 This is an incompatible change, but it does not affect 5787 non-interactive use of 'openssl passwd' (passwords on the command 5788 line, '-stdin' option, '-in ...' option) and thus should not 5789 cause any problems. 5790 [Bodo Moeller] 5791 5792 *) Remove all references to RSAref, since there's no more need for it. 5793 [Richard Levitte] 5794 5795 *) Make DSO load along a path given through an environment variable 5796 (SHLIB_PATH) with shl_load(). 5797 [Richard Levitte] 5798 5799 *) Constify the ENGINE code as a result of BIGNUM constification. 5800 Also constify the RSA code and most things related to it. In a 5801 few places, most notable in the depth of the ASN.1 code, ugly 5802 casts back to non-const were required (to be solved at a later 5803 time) 5804 [Richard Levitte] 5805 5806 *) Make it so the openssl application has all engines loaded by default. 5807 [Richard Levitte] 5808 5809 *) Constify the BIGNUM routines a little more. 5810 [Richard Levitte] 5811 5812 *) Add the following functions: 5813 5814 ENGINE_load_cswift() 5815 ENGINE_load_chil() 5816 ENGINE_load_atalla() 5817 ENGINE_load_nuron() 5818 ENGINE_load_builtin_engines() 5819 5820 That way, an application can itself choose if external engines that 5821 are built-in in OpenSSL shall ever be used or not. The benefit is 5822 that applications won't have to be linked with libdl or other dso 5823 libraries unless it's really needed. 5824 5825 Changed 'openssl engine' to load all engines on demand. 5826 Changed the engine header files to avoid the duplication of some 5827 declarations (they differed!). 5828 [Richard Levitte] 5829 5830 *) 'openssl engine' can now list capabilities. 5831 [Richard Levitte] 5832 5833 *) Better error reporting in 'openssl engine'. 5834 [Richard Levitte] 5835 5836 *) Never call load_dh_param(NULL) in s_server. 5837 [Bodo Moeller] 5838 5839 *) Add engine application. It can currently list engines by name and 5840 identity, and test if they are actually available. 5841 [Richard Levitte] 5842 5843 *) Improve RPM specification file by forcing symbolic linking and making 5844 sure the installed documentation is also owned by root.root. 5845 [Damien Miller <djm@mindrot.org>] 5846 5847 *) Give the OpenSSL applications more possibilities to make use of 5848 keys (public as well as private) handled by engines. 5849 [Richard Levitte] 5850 5851 *) Add OCSP code that comes from CertCo. 5852 [Richard Levitte] 5853 5854 *) Add VMS support for the Rijndael code. 5855 [Richard Levitte] 5856 5857 *) Added untested support for Nuron crypto accelerator. 5858 [Ben Laurie] 5859 5860 *) Add support for external cryptographic devices. This code was 5861 previously distributed separately as the "engine" branch. 5862 [Geoff Thorpe, Richard Levitte] 5863 5864 *) Rework the filename-translation in the DSO code. It is now possible to 5865 have far greater control over how a "name" is turned into a filename 5866 depending on the operating environment and any oddities about the 5867 different shared library filenames on each system. 5868 [Geoff Thorpe] 5869 5870 *) Support threads on FreeBSD-elf in Configure. 5871 [Richard Levitte] 5872 5873 *) Fix for SHA1 assembly problem with MASM: it produces 5874 warnings about corrupt line number information when assembling 5875 with debugging information. This is caused by the overlapping 5876 of two sections. 5877 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5878 5879 *) NCONF changes. 5880 NCONF_get_number() has no error checking at all. As a replacement, 5881 NCONF_get_number_e() is defined (_e for "error checking") and is 5882 promoted strongly. The old NCONF_get_number is kept around for 5883 binary backward compatibility. 5884 Make it possible for methods to load from something other than a BIO, 5885 by providing a function pointer that is given a name instead of a BIO. 5886 For example, this could be used to load configuration data from an 5887 LDAP server. 5888 [Richard Levitte] 5889 5890 *) Fix for non blocking accept BIOs. Added new I/O special reason 5891 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5892 with non blocking I/O was not possible because no retry code was 5893 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5894 this case. 5895 [Steve Henson] 5896 5897 *) Added the beginnings of Rijndael support. 5898 [Ben Laurie] 5899 5900 *) Fix for bug in DirectoryString mask setting. Add support for 5901 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5902 to allow certificate printing to more controllable, additional 5903 'certopt' option to 'x509' to allow new printing options to be 5904 set. 5905 [Steve Henson] 5906 5907 *) Clean old EAY MD5 hack from e_os.h. 5908 [Richard Levitte] 5909 5910 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5911 5912 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5913 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5914 [Joe Orton, Steve Henson] 5915 5916 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5917 5918 *) Fix additional bug revealed by the NISCC test suite: 5919 5920 Stop bug triggering large recursion when presented with 5921 certain ASN.1 tags (CVE-2003-0851) 5922 [Steve Henson] 5923 5924 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5925 5926 *) Fix various bugs revealed by running the NISCC test suite: 5927 5928 Stop out of bounds reads in the ASN1 code when presented with 5929 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5930 5931 If verify callback ignores invalid public key errors don't try to check 5932 certificate signature with the NULL public key. 5933 5934 [Steve Henson] 5935 5936 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5937 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5938 specifications. 5939 [Steve Henson] 5940 5941 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5942 extra data after the compression methods not only for TLS 1.0 5943 but also for SSL 3.0 (as required by the specification). 5944 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5945 5946 *) Change X509_certificate_type() to mark the key as exported/exportable 5947 when it's 512 *bits* long, not 512 bytes. 5948 [Richard Levitte] 5949 5950 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5951 5952 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5953 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5954 a protocol version number mismatch like a decryption error 5955 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5956 [Bodo Moeller] 5957 5958 *) Turn on RSA blinding by default in the default implementation 5959 to avoid a timing attack. Applications that don't want it can call 5960 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5961 They would be ill-advised to do so in most cases. 5962 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5963 5964 *) Change RSA blinding code so that it works when the PRNG is not 5965 seeded (in this case, the secret RSA exponent is abused as 5966 an unpredictable seed -- if it is not unpredictable, there 5967 is no point in blinding anyway). Make RSA blinding thread-safe 5968 by remembering the creator's thread ID in rsa->blinding and 5969 having all other threads use local one-time blinding factors 5970 (this requires more computation than sharing rsa->blinding, but 5971 avoids excessive locking; and if an RSA object is not shared 5972 between threads, blinding will still be very fast). 5973 [Bodo Moeller] 5974 5975 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5976 5977 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5978 via timing by performing a MAC computation even if incorrrect 5979 block cipher padding has been found. This is a countermeasure 5980 against active attacks where the attacker has to distinguish 5981 between bad padding and a MAC verification error. (CVE-2003-0078) 5982 5983 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5984 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5985 Martin Vuagnoux (EPFL, Ilion)] 5986 5987 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 5988 5989 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 5990 memory from it's contents. This is done with a counter that will 5991 place alternating values in each byte. This can be used to solve 5992 two issues: 1) the removal of calls to memset() by highly optimizing 5993 compilers, and 2) cleansing with other values than 0, since those can 5994 be read through on certain media, for example a swap space on disk. 5995 [Geoff Thorpe] 5996 5997 *) Bugfix: client side session caching did not work with external caching, 5998 because the session->cipher setting was not restored when reloading 5999 from the external cache. This problem was masked, when 6000 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 6001 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 6002 [Lutz Jaenicke] 6003 6004 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 6005 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 6006 [Zeev Lieber <zeev-l@yahoo.com>] 6007 6008 *) Undo an undocumented change introduced in 0.9.6e which caused 6009 repeated calls to OpenSSL_add_all_ciphers() and 6010 OpenSSL_add_all_digests() to be ignored, even after calling 6011 EVP_cleanup(). 6012 [Richard Levitte] 6013 6014 *) Change the default configuration reader to deal with last line not 6015 being properly terminated. 6016 [Richard Levitte] 6017 6018 *) Change X509_NAME_cmp() so it applies the special rules on handling 6019 DN values that are of type PrintableString, as well as RDNs of type 6020 emailAddress where the value has the type ia5String. 6021 [stefank@valicert.com via Richard Levitte] 6022 6023 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 6024 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 6025 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 6026 the bitwise-OR of the two for use by the majority of applications 6027 wanting this behaviour, and update the docs. The documented 6028 behaviour and actual behaviour were inconsistent and had been 6029 changing anyway, so this is more a bug-fix than a behavioural 6030 change. 6031 [Geoff Thorpe, diagnosed by Nadav Har'El] 6032 6033 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 6034 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 6035 [Bodo Moeller] 6036 6037 *) Fix initialization code race conditions in 6038 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 6039 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 6040 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 6041 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 6042 ssl2_get_cipher_by_char(), 6043 ssl3_get_cipher_by_char(). 6044 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 6045 6046 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 6047 the cached sessions are flushed, as the remove_cb() might use ex_data 6048 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 6049 (see [openssl.org #212]). 6050 [Geoff Thorpe, Lutz Jaenicke] 6051 6052 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 6053 length, instead of the encoding length to d2i_ASN1_OBJECT. 6054 [Steve Henson] 6055 6056 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 6057 6058 *) [In 0.9.6g-engine release:] 6059 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 6060 [Lynn Gazis <lgazis@rainbow.com>] 6061 6062 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 6063 6064 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 6065 and get fix the header length calculation. 6066 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 6067 Alon Kantor <alonk@checkpoint.com> (and others), 6068 Steve Henson] 6069 6070 *) Use proper error handling instead of 'assertions' in buffer 6071 overflow checks added in 0.9.6e. This prevents DoS (the 6072 assertions could call abort()). 6073 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 6074 6075 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 6076 6077 *) Add various sanity checks to asn1_get_length() to reject 6078 the ASN1 length bytes if they exceed sizeof(long), will appear 6079 negative or the content length exceeds the length of the 6080 supplied buffer. 6081 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6082 6083 *) Fix cipher selection routines: ciphers without encryption had no flags 6084 for the cipher strength set and where therefore not handled correctly 6085 by the selection routines (PR #130). 6086 [Lutz Jaenicke] 6087 6088 *) Fix EVP_dsa_sha macro. 6089 [Nils Larsch] 6090 6091 *) New option 6092 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 6093 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 6094 that was added in OpenSSL 0.9.6d. 6095 6096 As the countermeasure turned out to be incompatible with some 6097 broken SSL implementations, the new option is part of SSL_OP_ALL. 6098 SSL_OP_ALL is usually employed when compatibility with weird SSL 6099 implementations is desired (e.g. '-bugs' option to 's_client' and 6100 's_server'), so the new option is automatically set in many 6101 applications. 6102 [Bodo Moeller] 6103 6104 *) Changes in security patch: 6105 6106 Changes marked "(CHATS)" were sponsored by the Defense Advanced 6107 Research Projects Agency (DARPA) and Air Force Research Laboratory, 6108 Air Force Materiel Command, USAF, under agreement number 6109 F30602-01-2-0537. 6110 6111 *) Add various sanity checks to asn1_get_length() to reject 6112 the ASN1 length bytes if they exceed sizeof(long), will appear 6113 negative or the content length exceeds the length of the 6114 supplied buffer. (CVE-2002-0659) 6115 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6116 6117 *) Assertions for various potential buffer overflows, not known to 6118 happen in practice. 6119 [Ben Laurie (CHATS)] 6120 6121 *) Various temporary buffers to hold ASCII versions of integers were 6122 too small for 64 bit platforms. (CVE-2002-0655) 6123 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 6124 6125 *) Remote buffer overflow in SSL3 protocol - an attacker could 6126 supply an oversized session ID to a client. (CVE-2002-0656) 6127 [Ben Laurie (CHATS)] 6128 6129 *) Remote buffer overflow in SSL2 protocol - an attacker could 6130 supply an oversized client master key. (CVE-2002-0656) 6131 [Ben Laurie (CHATS)] 6132 6133 Changes between 0.9.6c and 0.9.6d [9 May 2002] 6134 6135 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 6136 encoded as NULL) with id-dsa-with-sha1. 6137 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 6138 6139 *) Check various X509_...() return values in apps/req.c. 6140 [Nils Larsch <nla@trustcenter.de>] 6141 6142 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6143 an end-of-file condition would erronously be flagged, when the CRLF 6144 was just at the end of a processed block. The bug was discovered when 6145 processing data through a buffering memory BIO handing the data to a 6146 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6147 <ptsekov@syntrex.com> and Nedelcho Stanev. 6148 [Lutz Jaenicke] 6149 6150 *) Implement a countermeasure against a vulnerability recently found 6151 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6152 before application data chunks to avoid the use of known IVs 6153 with data potentially chosen by the attacker. 6154 [Bodo Moeller] 6155 6156 *) Fix length checks in ssl3_get_client_hello(). 6157 [Bodo Moeller] 6158 6159 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6160 to prevent ssl3_read_internal() from incorrectly assuming that 6161 ssl3_read_bytes() found application data while handshake 6162 processing was enabled when in fact s->s3->in_read_app_data was 6163 merely automatically cleared during the initial handshake. 6164 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6165 6166 *) Fix object definitions for Private and Enterprise: they were not 6167 recognized in their shortname (=lowercase) representation. Extend 6168 obj_dat.pl to issue an error when using undefined keywords instead 6169 of silently ignoring the problem (Svenning Sorensen 6170 <sss@sss.dnsalias.net>). 6171 [Lutz Jaenicke] 6172 6173 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6174 generators, i.e. generators other than 2 and 5. (Previously, the 6175 code did not properly initialise the 'add' and 'rem' values to 6176 BN_generate_prime().) 6177 6178 In the new general case, we do not insist that 'generator' is 6179 actually a primitive root: This requirement is rather pointless; 6180 a generator of the order-q subgroup is just as good, if not 6181 better. 6182 [Bodo Moeller] 6183 6184 *) Map new X509 verification errors to alerts. Discovered and submitted by 6185 Tom Wu <tom@arcot.com>. 6186 [Lutz Jaenicke] 6187 6188 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6189 returning non-zero before the data has been completely received 6190 when using non-blocking I/O. 6191 [Bodo Moeller; problem pointed out by John Hughes] 6192 6193 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6194 [Ben Laurie, Lutz Jaenicke] 6195 6196 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6197 Yoram Zahavi <YoramZ@gilian.com>). 6198 [Lutz Jaenicke] 6199 6200 *) Add information about CygWin 1.3 and on, and preserve proper 6201 configuration for the versions before that. 6202 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6203 6204 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6205 check whether we deal with a copy of a session and do not delete from 6206 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6207 <izhar@checkpoint.com>. 6208 [Lutz Jaenicke] 6209 6210 *) Do not store session data into the internal session cache, if it 6211 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6212 flag is set). Proposed by Aslam <aslam@funk.com>. 6213 [Lutz Jaenicke] 6214 6215 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6216 value is 0. 6217 [Richard Levitte] 6218 6219 *) [In 0.9.6d-engine release:] 6220 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6221 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6222 6223 *) Add the configuration target linux-s390x. 6224 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6225 6226 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6227 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6228 variable as an indication that a ClientHello message has been 6229 received. As the flag value will be lost between multiple 6230 invocations of ssl3_accept when using non-blocking I/O, the 6231 function may not be aware that a handshake has actually taken 6232 place, thus preventing a new session from being added to the 6233 session cache. 6234 6235 To avoid this problem, we now set s->new_session to 2 instead of 6236 using a local variable. 6237 [Lutz Jaenicke, Bodo Moeller] 6238 6239 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6240 if the SSL_R_LENGTH_MISMATCH error is detected. 6241 [Geoff Thorpe, Bodo Moeller] 6242 6243 *) New 'shared_ldflag' column in Configure platform table. 6244 [Richard Levitte] 6245 6246 *) Fix EVP_CIPHER_mode macro. 6247 ["Dan S. Camper" <dan@bti.net>] 6248 6249 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6250 type, we must throw them away by setting rr->length to 0. 6251 [D P Chang <dpc@qualys.com>] 6252 6253 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6254 6255 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6256 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6257 worked incorrectly for those cases where range = 10..._2 and 6258 3*range is two bits longer than range.) 6259 [Bodo Moeller] 6260 6261 *) Only add signing time to PKCS7 structures if it is not already 6262 present. 6263 [Steve Henson] 6264 6265 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6266 OBJ_ld_ce should be OBJ_id_ce. 6267 Also some ip-pda OIDs in crypto/objects/objects.txt were 6268 incorrect (cf. RFC 3039). 6269 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6270 6271 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6272 returns early because it has nothing to do. 6273 [Andy Schneider <andy.schneider@bjss.co.uk>] 6274 6275 *) [In 0.9.6c-engine release:] 6276 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6277 [Andy Schneider <andy.schneider@bjss.co.uk>] 6278 6279 *) [In 0.9.6c-engine release:] 6280 Add support for Cryptographic Appliance's keyserver technology. 6281 (Use engine 'keyclient') 6282 [Cryptographic Appliances and Geoff Thorpe] 6283 6284 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6285 is called via tools/c89.sh because arguments have to be 6286 rearranged (all '-L' options must appear before the first object 6287 modules). 6288 [Richard Shapiro <rshapiro@abinitio.com>] 6289 6290 *) [In 0.9.6c-engine release:] 6291 Add support for Broadcom crypto accelerator cards, backported 6292 from 0.9.7. 6293 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6294 6295 *) [In 0.9.6c-engine release:] 6296 Add support for SureWare crypto accelerator cards from 6297 Baltimore Technologies. (Use engine 'sureware') 6298 [Baltimore Technologies and Mark Cox] 6299 6300 *) [In 0.9.6c-engine release:] 6301 Add support for crypto accelerator cards from Accelerated 6302 Encryption Processing, www.aep.ie. (Use engine 'aep') 6303 [AEP Inc. and Mark Cox] 6304 6305 *) Add a configuration entry for gcc on UnixWare. 6306 [Gary Benson <gbenson@redhat.com>] 6307 6308 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6309 messages are stored in a single piece (fixed-length part and 6310 variable-length part combined) and fix various bugs found on the way. 6311 [Bodo Moeller] 6312 6313 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6314 instead. BIO_gethostbyname() does not know what timeouts are 6315 appropriate, so entries would stay in cache even when they have 6316 become invalid. 6317 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6318 6319 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6320 faced with a pathologically small ClientHello fragment that does 6321 not contain client_version: Instead of aborting with an error, 6322 simply choose the highest available protocol version (i.e., 6323 TLS 1.0 unless it is disabled). In practice, ClientHello 6324 messages are never sent like this, but this change gives us 6325 strictly correct behaviour at least for TLS. 6326 [Bodo Moeller] 6327 6328 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6329 never resets s->method to s->ctx->method when called from within 6330 one of the SSL handshake functions. 6331 [Bodo Moeller; problem pointed out by Niko Baric] 6332 6333 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6334 (sent using the client's version number) if client_version is 6335 smaller than the protocol version in use. Also change 6336 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6337 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6338 the client will at least see that alert. 6339 [Bodo Moeller] 6340 6341 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6342 correctly. 6343 [Bodo Moeller] 6344 6345 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6346 client receives HelloRequest while in a handshake. 6347 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6348 6349 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6350 should end in 'break', not 'goto end' which circuments various 6351 cleanups done in state SSL_ST_OK. But session related stuff 6352 must be disabled for SSL_ST_OK in the case that we just sent a 6353 HelloRequest. 6354 6355 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6356 before just sending a HelloRequest. 6357 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6358 6359 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6360 reveal whether illegal block cipher padding was found or a MAC 6361 verification error occured. (Neither SSLerr() codes nor alerts 6362 are directly visible to potential attackers, but the information 6363 may leak via logfiles.) 6364 6365 Similar changes are not required for the SSL 2.0 implementation 6366 because the number of padding bytes is sent in clear for SSL 2.0, 6367 and the extra bytes are just ignored. However ssl/s2_pkt.c 6368 failed to verify that the purported number of padding bytes is in 6369 the legal range. 6370 [Bodo Moeller] 6371 6372 *) Add OpenUNIX-8 support including shared libraries 6373 (Boyd Lynn Gerber <gerberb@zenez.com>). 6374 [Lutz Jaenicke] 6375 6376 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6377 'wristwatch attack' using huge encoding parameters (cf. 6378 James H. Manger's CRYPTO 2001 paper). Note that the 6379 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6380 encoding parameters and hence was not vulnerable. 6381 [Bodo Moeller] 6382 6383 *) BN_sqr() bug fix. 6384 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6385 6386 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6387 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6388 followed by modular reduction. 6389 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6390 6391 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6392 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6393 [Bodo Moeller] 6394 6395 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6396 This function was broken, as the check for a new client hello message 6397 to handle SGC did not allow these large messages. 6398 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6399 [Lutz Jaenicke] 6400 6401 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6402 [Lutz Jaenicke] 6403 6404 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6405 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6406 [Lutz Jaenicke] 6407 6408 *) Rework the configuration and shared library support for Tru64 Unix. 6409 The configuration part makes use of modern compiler features and 6410 still retains old compiler behavior for those that run older versions 6411 of the OS. The shared library support part includes a variant that 6412 uses the RPATH feature, and is available through the special 6413 configuration target "alpha-cc-rpath", which will never be selected 6414 automatically. 6415 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6416 6417 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6418 with the same message size as in ssl3_get_certificate_request(). 6419 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6420 messages might inadvertently be reject as too long. 6421 [Petr Lampa <lampa@fee.vutbr.cz>] 6422 6423 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6424 [Andy Polyakov] 6425 6426 *) Modified SSL library such that the verify_callback that has been set 6427 specificly for an SSL object with SSL_set_verify() is actually being 6428 used. Before the change, a verify_callback set with this function was 6429 ignored and the verify_callback() set in the SSL_CTX at the time of 6430 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6431 to allow the necessary settings. 6432 [Lutz Jaenicke] 6433 6434 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6435 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6436 done automatically (in contradiction to the requirements of the C 6437 standard). This made problems when used from OpenSSH. 6438 [Lutz Jaenicke] 6439 6440 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6441 dh->length and always used 6442 6443 BN_rand_range(priv_key, dh->p). 6444 6445 BN_rand_range() is not necessary for Diffie-Hellman, and this 6446 specific range makes Diffie-Hellman unnecessarily inefficient if 6447 dh->length (recommended exponent length) is much smaller than the 6448 length of dh->p. We could use BN_rand_range() if the order of 6449 the subgroup was stored in the DH structure, but we only have 6450 dh->length. 6451 6452 So switch back to 6453 6454 BN_rand(priv_key, l, ...) 6455 6456 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6457 otherwise. 6458 [Bodo Moeller] 6459 6460 *) In 6461 6462 RSA_eay_public_encrypt 6463 RSA_eay_private_decrypt 6464 RSA_eay_private_encrypt (signing) 6465 RSA_eay_public_decrypt (signature verification) 6466 6467 (default implementations for RSA_public_encrypt, 6468 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6469 always reject numbers >= n. 6470 [Bodo Moeller] 6471 6472 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6473 to synchronize access to 'locking_thread'. This is necessary on 6474 systems where access to 'locking_thread' (an 'unsigned long' 6475 variable) is not atomic. 6476 [Bodo Moeller] 6477 6478 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6479 *before* setting the 'crypto_lock_rand' flag. The previous code had 6480 a race condition if 0 is a valid thread ID. 6481 [Travis Vitek <vitek@roguewave.com>] 6482 6483 *) Add support for shared libraries under Irix. 6484 [Albert Chin-A-Young <china@thewrittenword.com>] 6485 6486 *) Add configuration option to build on Linux on both big-endian and 6487 little-endian MIPS. 6488 [Ralf Baechle <ralf@uni-koblenz.de>] 6489 6490 *) Add the possibility to create shared libraries on HP-UX. 6491 [Richard Levitte] 6492 6493 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6494 6495 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6496 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6497 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6498 PRNG state recovery was possible based on the output of 6499 one PRNG request appropriately sized to gain knowledge on 6500 'md' followed by enough consecutive 1-byte PRNG requests 6501 to traverse all of 'state'. 6502 6503 1. When updating 'md_local' (the current thread's copy of 'md') 6504 during PRNG output generation, hash all of the previous 6505 'md_local' value, not just the half used for PRNG output. 6506 6507 2. Make the number of bytes from 'state' included into the hash 6508 independent from the number of PRNG bytes requested. 6509 6510 The first measure alone would be sufficient to avoid 6511 Markku-Juhani's attack. (Actually it had never occurred 6512 to me that the half of 'md_local' used for chaining was the 6513 half from which PRNG output bytes were taken -- I had always 6514 assumed that the secret half would be used.) The second 6515 measure makes sure that additional data from 'state' is never 6516 mixed into 'md_local' in small portions; this heuristically 6517 further strengthens the PRNG. 6518 [Bodo Moeller] 6519 6520 *) Fix crypto/bn/asm/mips3.s. 6521 [Andy Polyakov] 6522 6523 *) When only the key is given to "enc", the IV is undefined. Print out 6524 an error message in this case. 6525 [Lutz Jaenicke] 6526 6527 *) Handle special case when X509_NAME is empty in X509 printing routines. 6528 [Steve Henson] 6529 6530 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6531 positive and less than q. 6532 [Bodo Moeller] 6533 6534 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6535 used: it isn't thread safe and the add_lock_callback should handle 6536 that itself. 6537 [Paul Rose <Paul.Rose@bridge.com>] 6538 6539 *) Verify that incoming data obeys the block size in 6540 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6541 [Bodo Moeller] 6542 6543 *) Fix OAEP check. 6544 [Ulf M�ller, Bodo M�ller] 6545 6546 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6547 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6548 when fixing the server behaviour for backwards-compatible 'client 6549 hello' messages. (Note that the attack is impractical against 6550 SSL 3.0 and TLS 1.0 anyway because length and version checking 6551 means that the probability of guessing a valid ciphertext is 6552 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6553 paper.) 6554 6555 Before 0.9.5, the countermeasure (hide the error by generating a 6556 random 'decryption result') did not work properly because 6557 ERR_clear_error() was missing, meaning that SSL_get_error() would 6558 detect the supposedly ignored error. 6559 6560 Both problems are now fixed. 6561 [Bodo Moeller] 6562 6563 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6564 (previously it was 1024). 6565 [Bodo Moeller] 6566 6567 *) Fix for compatibility mode trust settings: ignore trust settings 6568 unless some valid trust or reject settings are present. 6569 [Steve Henson] 6570 6571 *) Fix for blowfish EVP: its a variable length cipher. 6572 [Steve Henson] 6573 6574 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6575 parameters in DSA public key structures and return an error in the 6576 DSA routines if parameters are absent. 6577 [Steve Henson] 6578 6579 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6580 in the current directory if neither $RANDFILE nor $HOME was set. 6581 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6582 caused some confusion to Windows users who haven't defined $HOME. 6583 Thus RAND_file_name() is changed again: e_os.h can define a 6584 DEFAULT_HOME, which will be used if $HOME is not set. 6585 For Windows, we use "C:"; on other platforms, we still require 6586 environment variables. 6587 6588 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6589 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6590 having multiple threads call RAND_poll() concurrently. 6591 [Bodo Moeller] 6592 6593 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6594 combination of a flag and a thread ID variable. 6595 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6596 flag), *other* threads can enter ssleay_add_bytes without obeying 6597 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6598 that they do not hold after the first thread unsets add_do_not_lock). 6599 [Bodo Moeller] 6600 6601 *) Change bctest again: '-x' expressions are not available in all 6602 versions of 'test'. 6603 [Bodo Moeller] 6604 6605 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6606 6607 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6608 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6609 6610 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6611 the default extension for executables, if any. Also, make the perl 6612 scripts that use symlink() to test if it really exists and use "cp" 6613 if it doesn't. All this made OpenSSL compilable and installable in 6614 CygWin. 6615 [Richard Levitte] 6616 6617 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6618 If SEQUENCE is length is indefinite just set c->slen to the total 6619 amount of data available. 6620 [Steve Henson, reported by shige@FreeBSD.org] 6621 [This change does not apply to 0.9.7.] 6622 6623 *) Change bctest to avoid here-documents inside command substitution 6624 (workaround for FreeBSD /bin/sh bug). 6625 For compatibility with Ultrix, avoid shell functions (introduced 6626 in the bctest version that searches along $PATH). 6627 [Bodo Moeller] 6628 6629 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6630 with des_encrypt() defined on some operating systems, like Solaris 6631 and UnixWare. 6632 [Richard Levitte] 6633 6634 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6635 On the Importance of Eliminating Errors in Cryptographic 6636 Computations, J. Cryptology 14 (2001) 2, 101-119, 6637 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6638 [Ulf Moeller] 6639 6640 *) MIPS assembler BIGNUM division bug fix. 6641 [Andy Polyakov] 6642 6643 *) Disabled incorrect Alpha assembler code. 6644 [Richard Levitte] 6645 6646 *) Fix PKCS#7 decode routines so they correctly update the length 6647 after reading an EOC for the EXPLICIT tag. 6648 [Steve Henson] 6649 [This change does not apply to 0.9.7.] 6650 6651 *) Fix bug in PKCS#12 key generation routines. This was triggered 6652 if a 3DES key was generated with a 0 initial byte. Include 6653 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6654 (but broken) behaviour. 6655 [Steve Henson] 6656 6657 *) Enhance bctest to search for a working bc along $PATH and print 6658 it when found. 6659 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6660 6661 *) Fix memory leaks in err.c: free err_data string if necessary; 6662 don't write to the wrong index in ERR_set_error_data. 6663 [Bodo Moeller] 6664 6665 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6666 did not exist. 6667 [Bodo Moeller] 6668 6669 *) Replace rdtsc with _emit statements for VC++ version 5. 6670 [Jeremy Cooper <jeremy@baymoo.org>] 6671 6672 *) Make it possible to reuse SSLv2 sessions. 6673 [Richard Levitte] 6674 6675 *) In copy_email() check for >= 0 as a return value for 6676 X509_NAME_get_index_by_NID() since 0 is a valid index. 6677 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6678 6679 *) Avoid coredump with unsupported or invalid public keys by checking if 6680 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6681 PKCS7_verify() fails with non detached data. 6682 [Steve Henson] 6683 6684 *) Don't use getenv in library functions when run as setuid/setgid. 6685 New function OPENSSL_issetugid(). 6686 [Ulf Moeller] 6687 6688 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6689 due to incorrect handling of multi-threading: 6690 6691 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6692 6693 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6694 6695 3. Count how many times MemCheck_off() has been called so that 6696 nested use can be treated correctly. This also avoids 6697 inband-signalling in the previous code (which relied on the 6698 assumption that thread ID 0 is impossible). 6699 [Bodo Moeller] 6700 6701 *) Add "-rand" option also to s_client and s_server. 6702 [Lutz Jaenicke] 6703 6704 *) Fix CPU detection on Irix 6.x. 6705 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6706 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6707 6708 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6709 was empty. 6710 [Steve Henson] 6711 [This change does not apply to 0.9.7.] 6712 6713 *) Use the cached encoding of an X509_NAME structure rather than 6714 copying it. This is apparently the reason for the libsafe "errors" 6715 but the code is actually correct. 6716 [Steve Henson] 6717 6718 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6719 Bleichenbacher's DSA attack. 6720 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6721 to be set and top=0 forces the highest bit to be set; top=-1 is new 6722 and leaves the highest bit random. 6723 [Ulf Moeller, Bodo Moeller] 6724 6725 *) In the NCONF_...-based implementations for CONF_... queries 6726 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6727 a temporary CONF structure with the data component set to NULL 6728 (which gives segmentation faults in lh_retrieve). 6729 Instead, use NULL for the CONF pointer in CONF_get_string and 6730 CONF_get_number (which may use environment variables) and directly 6731 return NULL from CONF_get_section. 6732 [Bodo Moeller] 6733 6734 *) Fix potential buffer overrun for EBCDIC. 6735 [Ulf Moeller] 6736 6737 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6738 keyUsage if basicConstraints absent for a CA. 6739 [Steve Henson] 6740 6741 *) Make SMIME_write_PKCS7() write mail header values with a format that 6742 is more generally accepted (no spaces before the semicolon), since 6743 some programs can't parse those values properly otherwise. Also make 6744 sure BIO's that break lines after each write do not create invalid 6745 headers. 6746 [Richard Levitte] 6747 6748 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6749 macros previously used would not encode an empty SEQUENCE OF 6750 and break the signature. 6751 [Steve Henson] 6752 [This change does not apply to 0.9.7.] 6753 6754 *) Zero the premaster secret after deriving the master secret in 6755 DH ciphersuites. 6756 [Steve Henson] 6757 6758 *) Add some EVP_add_digest_alias registrations (as found in 6759 OpenSSL_add_all_digests()) to SSL_library_init() 6760 aka OpenSSL_add_ssl_algorithms(). This provides improved 6761 compatibility with peers using X.509 certificates 6762 with unconventional AlgorithmIdentifier OIDs. 6763 [Bodo Moeller] 6764 6765 *) Fix for Irix with NO_ASM. 6766 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6767 6768 *) ./config script fixes. 6769 [Ulf Moeller, Richard Levitte] 6770 6771 *) Fix 'openssl passwd -1'. 6772 [Bodo Moeller] 6773 6774 *) Change PKCS12_key_gen_asc() so it can cope with non null 6775 terminated strings whose length is passed in the passlen 6776 parameter, for example from PEM callbacks. This was done 6777 by adding an extra length parameter to asc2uni(). 6778 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6779 6780 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6781 call failed, free the DSA structure. 6782 [Bodo Moeller] 6783 6784 *) Fix to uni2asc() to cope with zero length Unicode strings. 6785 These are present in some PKCS#12 files. 6786 [Steve Henson] 6787 6788 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6789 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6790 when writing a 32767 byte record. 6791 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6792 6793 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6794 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6795 6796 (RSA objects have a reference count access to which is protected 6797 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6798 so they are meant to be shared between threads.) 6799 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6800 "Reddie, Steven" <Steven.Reddie@ca.com>] 6801 6802 *) Fix a deadlock in CRYPTO_mem_leaks(). 6803 [Bodo Moeller] 6804 6805 *) Use better test patterns in bntest. 6806 [Ulf M�ller] 6807 6808 *) rand_win.c fix for Borland C. 6809 [Ulf M�ller] 6810 6811 *) BN_rshift bugfix for n == 0. 6812 [Bodo Moeller] 6813 6814 *) Add a 'bctest' script that checks for some known 'bc' bugs 6815 so that 'make test' does not abort just because 'bc' is broken. 6816 [Bodo Moeller] 6817 6818 *) Store verify_result within SSL_SESSION also for client side to 6819 avoid potential security hole. (Re-used sessions on the client side 6820 always resulted in verify_result==X509_V_OK, not using the original 6821 result of the server certificate verification.) 6822 [Lutz Jaenicke] 6823 6824 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6825 SSL3_RT_APPLICATION_DATA, return 0. 6826 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6827 [Bodo Moeller] 6828 6829 *) Fix SSL_peek: 6830 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6831 releases, have been re-implemented by renaming the previous 6832 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6833 and ssl3_read_internal, respectively, and adding 'peek' parameters 6834 to them. The new ssl[23]_{read,peek} functions are calls to 6835 ssl[23]_read_internal with the 'peek' flag set appropriately. 6836 A 'peek' parameter has also been added to ssl3_read_bytes, which 6837 does the actual work for ssl3_read_internal. 6838 [Bodo Moeller] 6839 6840 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6841 the method-specific "init()" handler. Also clean up ex_data after 6842 calling the method-specific "finish()" handler. Previously, this was 6843 happening the other way round. 6844 [Geoff Thorpe] 6845 6846 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6847 The previous value, 12, was not always sufficient for BN_mod_exp(). 6848 [Bodo Moeller] 6849 6850 *) Make sure that shared libraries get the internal name engine with 6851 the full version number and not just 0. This should mark the 6852 shared libraries as not backward compatible. Of course, this should 6853 be changed again when we can guarantee backward binary compatibility. 6854 [Richard Levitte] 6855 6856 *) Fix typo in get_cert_by_subject() in by_dir.c 6857 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6858 6859 *) Rework the system to generate shared libraries: 6860 6861 - Make note of the expected extension for the shared libraries and 6862 if there is a need for symbolic links from for example libcrypto.so.0 6863 to libcrypto.so.0.9.7. There is extended info in Configure for 6864 that. 6865 6866 - Make as few rebuilds of the shared libraries as possible. 6867 6868 - Still avoid linking the OpenSSL programs with the shared libraries. 6869 6870 - When installing, install the shared libraries separately from the 6871 static ones. 6872 [Richard Levitte] 6873 6874 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6875 6876 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6877 and not in SSL_clear because the latter is also used by the 6878 accept/connect functions; previously, the settings made by 6879 SSL_set_read_ahead would be lost during the handshake. 6880 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6881 6882 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6883 Previously, it would create entries for disableed algorithms no 6884 matter what. 6885 [Richard Levitte] 6886 6887 *) Added several new manual pages for SSL_* function. 6888 [Lutz Jaenicke] 6889 6890 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6891 6892 *) In ssl23_get_client_hello, generate an error message when faced 6893 with an initial SSL 3.0/TLS record that is too small to contain the 6894 first two bytes of the ClientHello message, i.e. client_version. 6895 (Note that this is a pathologic case that probably has never happened 6896 in real life.) The previous approach was to use the version number 6897 from the record header as a substitute; but our protocol choice 6898 should not depend on that one because it is not authenticated 6899 by the Finished messages. 6900 [Bodo Moeller] 6901 6902 *) More robust randomness gathering functions for Windows. 6903 [Jeffrey Altman <jaltman@columbia.edu>] 6904 6905 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6906 not set then we don't setup the error code for issuer check errors 6907 to avoid possibly overwriting other errors which the callback does 6908 handle. If an application does set the flag then we assume it knows 6909 what it is doing and can handle the new informational codes 6910 appropriately. 6911 [Steve Henson] 6912 6913 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6914 a general "ANY" type, as such it should be able to decode anything 6915 including tagged types. However it didn't check the class so it would 6916 wrongly interpret tagged types in the same way as their universal 6917 counterpart and unknown types were just rejected. Changed so that the 6918 tagged and unknown types are handled in the same way as a SEQUENCE: 6919 that is the encoding is stored intact. There is also a new type 6920 "V_ASN1_OTHER" which is used when the class is not universal, in this 6921 case we have no idea what the actual type is so we just lump them all 6922 together. 6923 [Steve Henson] 6924 6925 *) On VMS, stdout may very well lead to a file that is written to 6926 in a record-oriented fashion. That means that every write() will 6927 write a separate record, which will be read separately by the 6928 programs trying to read from it. This can be very confusing. 6929 6930 The solution is to put a BIO filter in the way that will buffer 6931 text until a linefeed is reached, and then write everything a 6932 line at a time, so every record written will be an actual line, 6933 not chunks of lines and not (usually doesn't happen, but I've 6934 seen it once) several lines in one record. BIO_f_linebuffer() is 6935 the answer. 6936 6937 Currently, it's a VMS-only method, because that's where it has 6938 been tested well enough. 6939 [Richard Levitte] 6940 6941 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6942 it can return incorrect results. 6943 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6944 but it was in 0.9.6-beta[12].) 6945 [Bodo Moeller] 6946 6947 *) Disable the check for content being present when verifying detached 6948 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6949 include zero length content when signing messages. 6950 [Steve Henson] 6951 6952 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6953 BIO_ctrl (for BIO pairs). 6954 [Bodo M�ller] 6955 6956 *) Add DSO method for VMS. 6957 [Richard Levitte] 6958 6959 *) Bug fix: Montgomery multiplication could produce results with the 6960 wrong sign. 6961 [Ulf M�ller] 6962 6963 *) Add RPM specification openssl.spec and modify it to build three 6964 packages. The default package contains applications, application 6965 documentation and run-time libraries. The devel package contains 6966 include files, static libraries and function documentation. The 6967 doc package contains the contents of the doc directory. The original 6968 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6969 [Richard Levitte] 6970 6971 *) Add a large number of documentation files for many SSL routines. 6972 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6973 6974 *) Add a configuration entry for Sony News 4. 6975 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6976 6977 *) Don't set the two most significant bits to one when generating a 6978 random number < q in the DSA library. 6979 [Ulf M�ller] 6980 6981 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 6982 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 6983 the underlying transport is blocking) if a handshake took place. 6984 (The default behaviour is needed by applications such as s_client 6985 and s_server that use select() to determine when to use SSL_read; 6986 but for applications that know in advance when to expect data, it 6987 just makes things more complicated.) 6988 [Bodo Moeller] 6989 6990 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 6991 from EGD. 6992 [Ben Laurie] 6993 6994 *) Add a few more EBCDIC conditionals that make `req' and `x509' 6995 work better on such systems. 6996 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 6997 6998 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 6999 Update PKCS12_parse() so it copies the friendlyName and the 7000 keyid to the certificates aux info. 7001 [Steve Henson] 7002 7003 *) Fix bug in PKCS7_verify() which caused an infinite loop 7004 if there was more than one signature. 7005 [Sven Uszpelkat <su@celocom.de>] 7006 7007 *) Major change in util/mkdef.pl to include extra information 7008 about each symbol, as well as presentig variables as well 7009 as functions. This change means that there's n more need 7010 to rebuild the .num files when some algorithms are excluded. 7011 [Richard Levitte] 7012 7013 *) Allow the verify time to be set by an application, 7014 rather than always using the current time. 7015 [Steve Henson] 7016 7017 *) Phase 2 verify code reorganisation. The certificate 7018 verify code now looks up an issuer certificate by a 7019 number of criteria: subject name, authority key id 7020 and key usage. It also verifies self signed certificates 7021 by the same criteria. The main comparison function is 7022 X509_check_issued() which performs these checks. 7023 7024 Lot of changes were necessary in order to support this 7025 without completely rewriting the lookup code. 7026 7027 Authority and subject key identifier are now cached. 7028 7029 The LHASH 'certs' is X509_STORE has now been replaced 7030 by a STACK_OF(X509_OBJECT). This is mainly because an 7031 LHASH can't store or retrieve multiple objects with 7032 the same hash value. 7033 7034 As a result various functions (which were all internal 7035 use only) have changed to handle the new X509_STORE 7036 structure. This will break anything that messed round 7037 with X509_STORE internally. 7038 7039 The functions X509_STORE_add_cert() now checks for an 7040 exact match, rather than just subject name. 7041 7042 The X509_STORE API doesn't directly support the retrieval 7043 of multiple certificates matching a given criteria, however 7044 this can be worked round by performing a lookup first 7045 (which will fill the cache with candidate certificates) 7046 and then examining the cache for matches. This is probably 7047 the best we can do without throwing out X509_LOOKUP 7048 entirely (maybe later...). 7049 7050 The X509_VERIFY_CTX structure has been enhanced considerably. 7051 7052 All certificate lookup operations now go via a get_issuer() 7053 callback. Although this currently uses an X509_STORE it 7054 can be replaced by custom lookups. This is a simple way 7055 to bypass the X509_STORE hackery necessary to make this 7056 work and makes it possible to use more efficient techniques 7057 in future. A very simple version which uses a simple 7058 STACK for its trusted certificate store is also provided 7059 using X509_STORE_CTX_trusted_stack(). 7060 7061 The verify_cb() and verify() callbacks now have equivalents 7062 in the X509_STORE_CTX structure. 7063 7064 X509_STORE_CTX also has a 'flags' field which can be used 7065 to customise the verify behaviour. 7066 [Steve Henson] 7067 7068 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 7069 excludes S/MIME capabilities. 7070 [Steve Henson] 7071 7072 *) When a certificate request is read in keep a copy of the 7073 original encoding of the signed data and use it when outputing 7074 again. Signatures then use the original encoding rather than 7075 a decoded, encoded version which may cause problems if the 7076 request is improperly encoded. 7077 [Steve Henson] 7078 7079 *) For consistency with other BIO_puts implementations, call 7080 buffer_write(b, ...) directly in buffer_puts instead of calling 7081 BIO_write(b, ...). 7082 7083 In BIO_puts, increment b->num_write as in BIO_write. 7084 [Peter.Sylvester@EdelWeb.fr] 7085 7086 *) Fix BN_mul_word for the case where the word is 0. (We have to use 7087 BN_zero, we may not return a BIGNUM with an array consisting of 7088 words set to zero.) 7089 [Bodo Moeller] 7090 7091 *) Avoid calling abort() from within the library when problems are 7092 detected, except if preprocessor symbols have been defined 7093 (such as REF_CHECK, BN_DEBUG etc.). 7094 [Bodo Moeller] 7095 7096 *) New openssl application 'rsautl'. This utility can be 7097 used for low level RSA operations. DER public key 7098 BIO/fp routines also added. 7099 [Steve Henson] 7100 7101 *) New Configure entry and patches for compiling on QNX 4. 7102 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 7103 7104 *) A demo state-machine implementation was sponsored by 7105 Nuron (http://www.nuron.com/) and is now available in 7106 demos/state_machine. 7107 [Ben Laurie] 7108 7109 *) New options added to the 'dgst' utility for signature 7110 generation and verification. 7111 [Steve Henson] 7112 7113 *) Unrecognized PKCS#7 content types are now handled via a 7114 catch all ASN1_TYPE structure. This allows unsupported 7115 types to be stored as a "blob" and an application can 7116 encode and decode it manually. 7117 [Steve Henson] 7118 7119 *) Fix various signed/unsigned issues to make a_strex.c 7120 compile under VC++. 7121 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 7122 7123 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 7124 length if passed a buffer. ASN1_INTEGER_to_BN failed 7125 if passed a NULL BN and its argument was negative. 7126 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 7127 7128 *) Modification to PKCS#7 encoding routines to output definite 7129 length encoding. Since currently the whole structures are in 7130 memory there's not real point in using indefinite length 7131 constructed encoding. However if OpenSSL is compiled with 7132 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 7133 [Steve Henson] 7134 7135 *) Added BIO_vprintf() and BIO_vsnprintf(). 7136 [Richard Levitte] 7137 7138 *) Added more prefixes to parse for in the the strings written 7139 through a logging bio, to cover all the levels that are available 7140 through syslog. The prefixes are now: 7141 7142 PANIC, EMERG, EMR => LOG_EMERG 7143 ALERT, ALR => LOG_ALERT 7144 CRIT, CRI => LOG_CRIT 7145 ERROR, ERR => LOG_ERR 7146 WARNING, WARN, WAR => LOG_WARNING 7147 NOTICE, NOTE, NOT => LOG_NOTICE 7148 INFO, INF => LOG_INFO 7149 DEBUG, DBG => LOG_DEBUG 7150 7151 and as before, if none of those prefixes are present at the 7152 beginning of the string, LOG_ERR is chosen. 7153 7154 On Win32, the LOG_* levels are mapped according to this: 7155 7156 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7157 LOG_WARNING => EVENTLOG_WARNING_TYPE 7158 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7159 7160 [Richard Levitte] 7161 7162 *) Made it possible to reconfigure with just the configuration 7163 argument "reconf" or "reconfigure". The command line arguments 7164 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7165 and are retrieved from there when reconfiguring. 7166 [Richard Levitte] 7167 7168 *) MD4 implemented. 7169 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7170 7171 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7172 [Richard Levitte] 7173 7174 *) The obj_dat.pl script was messing up the sorting of object 7175 names. The reason was that it compared the quoted version 7176 of strings as a result "OCSP" > "OCSP Signing" because 7177 " > SPACE. Changed script to store unquoted versions of 7178 names and add quotes on output. It was also omitting some 7179 names from the lookup table if they were given a default 7180 value (that is if SN is missing it is given the same 7181 value as LN and vice versa), these are now added on the 7182 grounds that if an object has a name we should be able to 7183 look it up. Finally added warning output when duplicate 7184 short or long names are found. 7185 [Steve Henson] 7186 7187 *) Changes needed for Tandem NSK. 7188 [Scott Uroff <scott@xypro.com>] 7189 7190 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7191 RSA_padding_check_SSLv23(), special padding was never detected 7192 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7193 version rollback attacks was not effective. 7194 7195 In s23_clnt.c, don't use special rollback-attack detection padding 7196 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7197 client; similarly, in s23_srvr.c, don't do the rollback check if 7198 SSL 2.0 is the only protocol enabled in the server. 7199 [Bodo Moeller] 7200 7201 *) Make it possible to get hexdumps of unprintable data with 'openssl 7202 asn1parse'. By implication, the functions ASN1_parse_dump() and 7203 BIO_dump_indent() are added. 7204 [Richard Levitte] 7205 7206 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7207 these print out strings and name structures based on various 7208 flags including RFC2253 support and proper handling of 7209 multibyte characters. Added options to the 'x509' utility 7210 to allow the various flags to be set. 7211 [Steve Henson] 7212 7213 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7214 Also change the functions X509_cmp_current_time() and 7215 X509_gmtime_adj() work with an ASN1_TIME structure, 7216 this will enable certificates using GeneralizedTime in validity 7217 dates to be checked. 7218 [Steve Henson] 7219 7220 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7221 negative public key encodings) on by default, 7222 NO_NEG_PUBKEY_BUG can be set to disable it. 7223 [Steve Henson] 7224 7225 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7226 content octets. An i2c_ASN1_OBJECT is unnecessary because 7227 the encoding can be trivially obtained from the structure. 7228 [Steve Henson] 7229 7230 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7231 not read locks (CRYPTO_r_[un]lock). 7232 [Bodo Moeller] 7233 7234 *) A first attempt at creating official support for shared 7235 libraries through configuration. I've kept it so the 7236 default is static libraries only, and the OpenSSL programs 7237 are always statically linked for now, but there are 7238 preparations for dynamic linking in place. 7239 This has been tested on Linux and Tru64. 7240 [Richard Levitte] 7241 7242 *) Randomness polling function for Win9x, as described in: 7243 Peter Gutmann, Software Generation of Practically Strong 7244 Random Numbers. 7245 [Ulf M�ller] 7246 7247 *) Fix so PRNG is seeded in req if using an already existing 7248 DSA key. 7249 [Steve Henson] 7250 7251 *) New options to smime application. -inform and -outform 7252 allow alternative formats for the S/MIME message including 7253 PEM and DER. The -content option allows the content to be 7254 specified separately. This should allow things like Netscape 7255 form signing output easier to verify. 7256 [Steve Henson] 7257 7258 *) Fix the ASN1 encoding of tags using the 'long form'. 7259 [Steve Henson] 7260 7261 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7262 STRING types. These convert content octets to and from the 7263 underlying type. The actual tag and length octets are 7264 already assumed to have been read in and checked. These 7265 are needed because all other string types have virtually 7266 identical handling apart from the tag. By having versions 7267 of the ASN1 functions that just operate on content octets 7268 IMPLICIT tagging can be handled properly. It also allows 7269 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7270 and ASN1_INTEGER are identical apart from the tag. 7271 [Steve Henson] 7272 7273 *) Change the handling of OID objects as follows: 7274 7275 - New object identifiers are inserted in objects.txt, following 7276 the syntax given in objects.README. 7277 - objects.pl is used to process obj_mac.num and create a new 7278 obj_mac.h. 7279 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7280 obj_mac.h. 7281 7282 This is currently kind of a hack, and the perl code in objects.pl 7283 isn't very elegant, but it works as I intended. The simplest way 7284 to check that it worked correctly is to look in obj_dat.h and 7285 check the array nid_objs and make sure the objects haven't moved 7286 around (this is important!). Additions are OK, as well as 7287 consistent name changes. 7288 [Richard Levitte] 7289 7290 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7291 [Bodo Moeller] 7292 7293 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7294 The given file adds to whatever has already been seeded into the 7295 random pool through the RANDFILE configuration file option or 7296 environment variable, or the default random state file. 7297 [Richard Levitte] 7298 7299 *) mkstack.pl now sorts each macro group into lexical order. 7300 Previously the output order depended on the order the files 7301 appeared in the directory, resulting in needless rewriting 7302 of safestack.h . 7303 [Steve Henson] 7304 7305 *) Patches to make OpenSSL compile under Win32 again. Mostly 7306 work arounds for the VC++ problem that it treats func() as 7307 func(void). Also stripped out the parts of mkdef.pl that 7308 added extra typesafe functions: these no longer exist. 7309 [Steve Henson] 7310 7311 *) Reorganisation of the stack code. The macros are now all 7312 collected in safestack.h . Each macro is defined in terms of 7313 a "stack macro" of the form SKM_<name>(type, a, b). The 7314 DEBUG_SAFESTACK is now handled in terms of function casts, 7315 this has the advantage of retaining type safety without the 7316 use of additional functions. If DEBUG_SAFESTACK is not defined 7317 then the non typesafe macros are used instead. Also modified the 7318 mkstack.pl script to handle the new form. Needs testing to see 7319 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7320 the default if no major problems. Similar behaviour for ASN1_SET_OF 7321 and PKCS12_STACK_OF. 7322 [Steve Henson] 7323 7324 *) When some versions of IIS use the 'NET' form of private key the 7325 key derivation algorithm is different. Normally MD5(password) is 7326 used as a 128 bit RC4 key. In the modified case 7327 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7328 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7329 as the old Netscape_RSA functions except they have an additional 7330 'sgckey' parameter which uses the modified algorithm. Also added 7331 an -sgckey command line option to the rsa utility. Thanks to 7332 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7333 algorithm to openssl-dev. 7334 [Steve Henson] 7335 7336 *) The evp_local.h macros were using 'c.##kname' which resulted in 7337 invalid expansion on some systems (SCO 5.0.5 for example). 7338 Corrected to 'c.kname'. 7339 [Phillip Porch <root@theporch.com>] 7340 7341 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7342 a STACK of email addresses from a certificate or request, these look 7343 in the subject name and the subject alternative name extensions and 7344 omit any duplicate addresses. 7345 [Steve Henson] 7346 7347 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7348 This makes DSA verification about 2 % faster. 7349 [Bodo Moeller] 7350 7351 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7352 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7353 plus overhead for 1024 bit moduli). 7354 This makes exponentiations about 0.5 % faster for 1024 bit 7355 exponents (as measured by "openssl speed rsa2048"). 7356 [Bodo Moeller] 7357 7358 *) Rename memory handling macros to avoid conflicts with other 7359 software: 7360 Malloc => OPENSSL_malloc 7361 Malloc_locked => OPENSSL_malloc_locked 7362 Realloc => OPENSSL_realloc 7363 Free => OPENSSL_free 7364 [Richard Levitte] 7365 7366 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7367 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7368 [Bodo Moeller] 7369 7370 *) CygWin32 support. 7371 [John Jarvie <jjarvie@newsguy.com>] 7372 7373 *) The type-safe stack code has been rejigged. It is now only compiled 7374 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7375 by default all type-specific stack functions are "#define"d back to 7376 standard stack functions. This results in more streamlined output 7377 but retains the type-safety checking possibilities of the original 7378 approach. 7379 [Geoff Thorpe] 7380 7381 *) The STACK code has been cleaned up, and certain type declarations 7382 that didn't make a lot of sense have been brought in line. This has 7383 also involved a cleanup of sorts in safestack.h to more correctly 7384 map type-safe stack functions onto their plain stack counterparts. 7385 This work has also resulted in a variety of "const"ifications of 7386 lots of the code, especially "_cmp" operations which should normally 7387 be prototyped with "const" parameters anyway. 7388 [Geoff Thorpe] 7389 7390 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7391 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7392 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7393 where all of 'md' is used each time the PRNG is used, but 'state' 7394 is used only indexed by a cyclic counter. As entropy may not be 7395 well distributed from the beginning, 'md' is important as a 7396 chaining variable. However, the output function chains only half 7397 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7398 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7399 in all of 'state' being rewritten, with the new values depending 7400 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7401 [Bodo Moeller] 7402 7403 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7404 the handshake is continued after ssl_verify_cert_chain(); 7405 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7406 can lead to 'unexplainable' connection aborts later. 7407 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7408 7409 *) Major EVP API cipher revision. 7410 Add hooks for extra EVP features. This allows various cipher 7411 parameters to be set in the EVP interface. Support added for variable 7412 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7413 setting of RC2 and RC5 parameters. 7414 7415 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7416 ciphers. 7417 7418 Remove lots of duplicated code from the EVP library. For example *every* 7419 cipher init() function handles the 'iv' in the same way according to the 7420 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7421 for CFB and OFB modes they zero ctx->num. 7422 7423 New functionality allows removal of S/MIME code RC2 hack. 7424 7425 Most of the routines have the same form and so can be declared in terms 7426 of macros. 7427 7428 By shifting this to the top level EVP_CipherInit() it can be removed from 7429 all individual ciphers. If the cipher wants to handle IVs or keys 7430 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7431 flags. 7432 7433 Change lots of functions like EVP_EncryptUpdate() to now return a 7434 value: although software versions of the algorithms cannot fail 7435 any installed hardware versions can. 7436 [Steve Henson] 7437 7438 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7439 this option is set, tolerate broken clients that send the negotiated 7440 protocol version number instead of the requested protocol version 7441 number. 7442 [Bodo Moeller] 7443 7444 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7445 i.e. non-zero for export ciphersuites, zero otherwise. 7446 Previous versions had this flag inverted, inconsistent with 7447 rsa_tmp_cb (..._TMP_RSA_CB). 7448 [Bodo Moeller; problem reported by Amit Chopra] 7449 7450 *) Add missing DSA library text string. Work around for some IIS 7451 key files with invalid SEQUENCE encoding. 7452 [Steve Henson] 7453 7454 *) Add a document (doc/standards.txt) that list all kinds of standards 7455 and so on that are implemented in OpenSSL. 7456 [Richard Levitte] 7457 7458 *) Enhance c_rehash script. Old version would mishandle certificates 7459 with the same subject name hash and wouldn't handle CRLs at all. 7460 Added -fingerprint option to crl utility, to support new c_rehash 7461 features. 7462 [Steve Henson] 7463 7464 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7465 [Ulf M�ller] 7466 7467 *) Fix for SSL server purpose checking. Server checking was 7468 rejecting certificates which had extended key usage present 7469 but no ssl client purpose. 7470 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7471 7472 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7473 is a little unclear about how a blank password is handled. 7474 Since the password in encoded as a BMPString with terminating 7475 double NULL a zero length password would end up as just the 7476 double NULL. However no password at all is different and is 7477 handled differently in the PKCS#12 key generation code. NS 7478 treats a blank password as zero length. MSIE treats it as no 7479 password on export: but it will try both on import. We now do 7480 the same: PKCS12_parse() tries zero length and no password if 7481 the password is set to "" or NULL (NULL is now a valid password: 7482 it wasn't before) as does the pkcs12 application. 7483 [Steve Henson] 7484 7485 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7486 perror when PEM_read_bio_X509_REQ fails, the error message must 7487 be obtained from the error queue. 7488 [Bodo Moeller] 7489 7490 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7491 it in ERR_remove_state if appropriate, and change ERR_get_state 7492 accordingly to avoid race conditions (this is necessary because 7493 thread_hash is no longer constant once set). 7494 [Bodo Moeller] 7495 7496 *) Bugfix for linux-elf makefile.one. 7497 [Ulf M�ller] 7498 7499 *) RSA_get_default_method() will now cause a default 7500 RSA_METHOD to be chosen if one doesn't exist already. 7501 Previously this was only set during a call to RSA_new() 7502 or RSA_new_method(NULL) meaning it was possible for 7503 RSA_get_default_method() to return NULL. 7504 [Geoff Thorpe] 7505 7506 *) Added native name translation to the existing DSO code 7507 that will convert (if the flag to do so is set) filenames 7508 that are sufficiently small and have no path information 7509 into a canonical native form. Eg. "blah" converted to 7510 "libblah.so" or "blah.dll" etc. 7511 [Geoff Thorpe] 7512 7513 *) New function ERR_error_string_n(e, buf, len) which is like 7514 ERR_error_string(e, buf), but writes at most 'len' bytes 7515 including the 0 terminator. For ERR_error_string_n, 'buf' 7516 may not be NULL. 7517 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7518 7519 *) CONF library reworked to become more general. A new CONF 7520 configuration file reader "class" is implemented as well as a 7521 new functions (NCONF_*, for "New CONF") to handle it. The now 7522 old CONF_* functions are still there, but are reimplemented to 7523 work in terms of the new functions. Also, a set of functions 7524 to handle the internal storage of the configuration data is 7525 provided to make it easier to write new configuration file 7526 reader "classes" (I can definitely see something reading a 7527 configuration file in XML format, for example), called _CONF_*, 7528 or "the configuration storage API"... 7529 7530 The new configuration file reading functions are: 7531 7532 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7533 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7534 7535 NCONF_default, NCONF_WIN32 7536 7537 NCONF_dump_fp, NCONF_dump_bio 7538 7539 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7540 NCONF_new creates a new CONF object. This works in the same way 7541 as other interfaces in OpenSSL, like the BIO interface. 7542 NCONF_dump_* dump the internal storage of the configuration file, 7543 which is useful for debugging. All other functions take the same 7544 arguments as the old CONF_* functions wth the exception of the 7545 first that must be a `CONF *' instead of a `LHASH *'. 7546 7547 To make it easer to use the new classes with the old CONF_* functions, 7548 the function CONF_set_default_method is provided. 7549 [Richard Levitte] 7550 7551 *) Add '-tls1' option to 'openssl ciphers', which was already 7552 mentioned in the documentation but had not been implemented. 7553 (This option is not yet really useful because even the additional 7554 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7555 [Bodo Moeller] 7556 7557 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7558 OpenSSL-based applications) load shared libraries and bind to 7559 them in a portable way. 7560 [Geoff Thorpe, with contributions from Richard Levitte] 7561 7562 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7563 7564 *) Make sure _lrotl and _lrotr are only used with MSVC. 7565 7566 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7567 (the default implementation of RAND_status). 7568 7569 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7570 to '-clrext' (= clear extensions), as intended and documented. 7571 [Bodo Moeller; inconsistency pointed out by Michael Attili 7572 <attili@amaxo.com>] 7573 7574 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7575 was larger than the MD block size. 7576 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7577 7578 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7579 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7580 using the passed key: if the passed key was a private key the result 7581 of X509_print(), for example, would be to print out all the private key 7582 components. 7583 [Steve Henson] 7584 7585 *) des_quad_cksum() byte order bug fix. 7586 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7587 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7588 7589 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7590 discouraged. 7591 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7592 7593 *) For easily testing in shell scripts whether some command 7594 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7595 returns with exit code 0 iff no command of the given name is available. 7596 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7597 the output goes to stdout and nothing is printed to stderr. 7598 Additional arguments are always ignored. 7599 7600 Since for each cipher there is a command of the same name, 7601 the 'no-cipher' compilation switches can be tested this way. 7602 7603 ('openssl no-XXX' is not able to detect pseudo-commands such 7604 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7605 [Bodo Moeller] 7606 7607 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7608 [Bodo Moeller] 7609 7610 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7611 is set; it will be thrown away anyway because each handshake creates 7612 its own key. 7613 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7614 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7615 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7616 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7617 [Bodo Moeller] 7618 7619 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7620 'Q' and 'R' lose their special meanings (quit/renegotiate). 7621 This is part of what -quiet does; unlike -quiet, -ign_eof 7622 does not suppress any output. 7623 [Richard Levitte] 7624 7625 *) Add compatibility options to the purpose and trust code. The 7626 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7627 accepts a certificate or CA, this was the previous behaviour, 7628 with all the associated security issues. 7629 7630 X509_TRUST_COMPAT is the old trust behaviour: only and 7631 automatically trust self signed roots in certificate store. A 7632 new trust setting X509_TRUST_DEFAULT is used to specify that 7633 a purpose has no associated trust setting and it should instead 7634 use the value in the default purpose. 7635 [Steve Henson] 7636 7637 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7638 and fix a memory leak. 7639 [Steve Henson] 7640 7641 *) In util/mkerr.pl (which implements 'make errors'), preserve 7642 reason strings from the previous version of the .c file, as 7643 the default to have only downcase letters (and digits) in 7644 automatically generated reasons codes is not always appropriate. 7645 [Bodo Moeller] 7646 7647 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7648 using strerror. Previously, ERR_reason_error_string() returned 7649 library names as reason strings for SYSerr; but SYSerr is a special 7650 case where small numbers are errno values, not library numbers. 7651 [Bodo Moeller] 7652 7653 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7654 converts DSA parameters into DH parameters. (When creating parameters, 7655 DSA_generate_parameters is used.) 7656 [Bodo Moeller] 7657 7658 *) Include 'length' (recommended exponent length) in C code generated 7659 by 'openssl dhparam -C'. 7660 [Bodo Moeller] 7661 7662 *) The second argument to set_label in perlasm was already being used 7663 so couldn't be used as a "file scope" flag. Moved to third argument 7664 which was free. 7665 [Steve Henson] 7666 7667 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7668 instead of RAND_bytes for encryption IVs and salts. 7669 [Bodo Moeller] 7670 7671 *) Include RAND_status() into RAND_METHOD instead of implementing 7672 it only for md_rand.c Otherwise replacing the PRNG by calling 7673 RAND_set_rand_method would be impossible. 7674 [Bodo Moeller] 7675 7676 *) Don't let DSA_generate_key() enter an infinite loop if the random 7677 number generation fails. 7678 [Bodo Moeller] 7679 7680 *) New 'rand' application for creating pseudo-random output. 7681 [Bodo Moeller] 7682 7683 *) Added configuration support for Linux/IA64 7684 [Rolf Haberrecker <rolf@suse.de>] 7685 7686 *) Assembler module support for Mingw32. 7687 [Ulf M�ller] 7688 7689 *) Shared library support for HPUX (in shlib/). 7690 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7691 7692 *) Shared library support for Solaris gcc. 7693 [Lutz Behnke <behnke@trustcenter.de>] 7694 7695 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7696 7697 *) PKCS7_encrypt() was adding text MIME headers twice because they 7698 were added manually and by SMIME_crlf_copy(). 7699 [Steve Henson] 7700 7701 *) In bntest.c don't call BN_rand with zero bits argument. 7702 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7703 7704 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7705 case was implemented. This caused BN_div_recp() to fail occasionally. 7706 [Ulf M�ller] 7707 7708 *) Add an optional second argument to the set_label() in the perl 7709 assembly language builder. If this argument exists and is set 7710 to 1 it signals that the assembler should use a symbol whose 7711 scope is the entire file, not just the current function. This 7712 is needed with MASM which uses the format label:: for this scope. 7713 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7714 7715 *) Change the ASN1 types so they are typedefs by default. Before 7716 almost all types were #define'd to ASN1_STRING which was causing 7717 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7718 for example. 7719 [Steve Henson] 7720 7721 *) Change names of new functions to the new get1/get0 naming 7722 convention: After 'get1', the caller owns a reference count 7723 and has to call ..._free; 'get0' returns a pointer to some 7724 data structure without incrementing reference counters. 7725 (Some of the existing 'get' functions increment a reference 7726 counter, some don't.) 7727 Similarly, 'set1' and 'add1' functions increase reference 7728 counters or duplicate objects. 7729 [Steve Henson] 7730 7731 *) Allow for the possibility of temp RSA key generation failure: 7732 the code used to assume it always worked and crashed on failure. 7733 [Steve Henson] 7734 7735 *) Fix potential buffer overrun problem in BIO_printf(). 7736 [Ulf M�ller, using public domain code by Patrick Powell; problem 7737 pointed out by David Sacerdote <das33@cornell.edu>] 7738 7739 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7740 RAND_egd() and RAND_status(). In the command line application, 7741 the EGD socket can be specified like a seed file using RANDFILE 7742 or -rand. 7743 [Ulf M�ller] 7744 7745 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7746 Some CAs (e.g. Verisign) distribute certificates in this form. 7747 [Steve Henson] 7748 7749 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7750 list to exclude them. This means that no special compilation option 7751 is needed to use anonymous DH: it just needs to be included in the 7752 cipher list. 7753 [Steve Henson] 7754 7755 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7756 EVP_MD_type. The old functionality is available in a new macro called 7757 EVP_MD_md(). Change code that uses it and update docs. 7758 [Steve Henson] 7759 7760 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7761 where the 'void *' argument is replaced by a function pointer argument. 7762 Previously 'void *' was abused to point to functions, which works on 7763 many platforms, but is not correct. As these functions are usually 7764 called by macros defined in OpenSSL header files, most source code 7765 should work without changes. 7766 [Richard Levitte] 7767 7768 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7769 sections with information on -D... compiler switches used for 7770 compiling the library so that applications can see them. To enable 7771 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7772 must be defined. E.g., 7773 #define OPENSSL_ALGORITHM_DEFINES 7774 #include <openssl/opensslconf.h> 7775 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7776 [Richard Levitte, Ulf and Bodo M�ller] 7777 7778 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7779 record layer. 7780 [Bodo Moeller] 7781 7782 *) Change the 'other' type in certificate aux info to a STACK_OF 7783 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7784 the required ASN1 format: arbitrary types determined by an OID. 7785 [Steve Henson] 7786 7787 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7788 argument to 'req'. This is not because the function is newer or 7789 better than others it just uses the work 'NEW' in the certificate 7790 request header lines. Some software needs this. 7791 [Steve Henson] 7792 7793 *) Reorganise password command line arguments: now passwords can be 7794 obtained from various sources. Delete the PEM_cb function and make 7795 it the default behaviour: i.e. if the callback is NULL and the 7796 usrdata argument is not NULL interpret it as a null terminated pass 7797 phrase. If usrdata and the callback are NULL then the pass phrase 7798 is prompted for as usual. 7799 [Steve Henson] 7800 7801 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7802 the support is automatically enabled. The resulting binaries will 7803 autodetect the card and use it if present. 7804 [Ben Laurie and Compaq Inc.] 7805 7806 *) Work around for Netscape hang bug. This sends certificate request 7807 and server done in one record. Since this is perfectly legal in the 7808 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7809 the bugs/SSLv3 entry for more info. 7810 [Steve Henson] 7811 7812 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7813 [Andy Polyakov] 7814 7815 *) Add -rand argument to smime and pkcs12 applications and read/write 7816 of seed file. 7817 [Steve Henson] 7818 7819 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7820 [Bodo Moeller] 7821 7822 *) Add command line password options to the remaining applications. 7823 [Steve Henson] 7824 7825 *) Bug fix for BN_div_recp() for numerators with an even number of 7826 bits. 7827 [Ulf M�ller] 7828 7829 *) More tests in bntest.c, and changed test_bn output. 7830 [Ulf M�ller] 7831 7832 *) ./config recognizes MacOS X now. 7833 [Andy Polyakov] 7834 7835 *) Bug fix for BN_div() when the first words of num and divsor are 7836 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7837 [Ulf M�ller] 7838 7839 *) Add support for various broken PKCS#8 formats, and command line 7840 options to produce them. 7841 [Steve Henson] 7842 7843 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7844 get temporary BIGNUMs from a BN_CTX. 7845 [Ulf M�ller] 7846 7847 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7848 for p == 0. 7849 [Ulf M�ller] 7850 7851 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7852 include a #define from the old name to the new. The original intent 7853 was that statically linked binaries could for example just call 7854 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7855 link with digests. This never worked becayse SSLeay_add_all_digests() 7856 and SSLeay_add_all_ciphers() were in the same source file so calling 7857 one would link with the other. They are now in separate source files. 7858 [Steve Henson] 7859 7860 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7861 [Steve Henson] 7862 7863 *) Use a less unusual form of the Miller-Rabin primality test (it used 7864 a binary algorithm for exponentiation integrated into the Miller-Rabin 7865 loop, our standard modexp algorithms are faster). 7866 [Bodo Moeller] 7867 7868 *) Support for the EBCDIC character set completed. 7869 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7870 7871 *) Source code cleanups: use const where appropriate, eliminate casts, 7872 use void * instead of char * in lhash. 7873 [Ulf M�ller] 7874 7875 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7876 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7877 this the server could overwrite ephemeral keys that the client 7878 has already seen). 7879 [Bodo Moeller] 7880 7881 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7882 using 50 iterations of the Rabin-Miller test. 7883 7884 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7885 iterations of the Rabin-Miller test as required by the appendix 7886 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7887 As BN_is_prime_fasttest includes trial division, DSA parameter 7888 generation becomes much faster. 7889 7890 This implies a change for the callback functions in DSA_is_prime 7891 and DSA_generate_parameters: The callback function is called once 7892 for each positive witness in the Rabin-Miller test, not just 7893 occasionally in the inner loop; and the parameters to the 7894 callback function now provide an iteration count for the outer 7895 loop rather than for the current invocation of the inner loop. 7896 DSA_generate_parameters additionally can call the callback 7897 function with an 'iteration count' of -1, meaning that a 7898 candidate has passed the trial division test (when q is generated 7899 from an application-provided seed, trial division is skipped). 7900 [Bodo Moeller] 7901 7902 *) New function BN_is_prime_fasttest that optionally does trial 7903 division before starting the Rabin-Miller test and has 7904 an additional BN_CTX * argument (whereas BN_is_prime always 7905 has to allocate at least one BN_CTX). 7906 'callback(1, -1, cb_arg)' is called when a number has passed the 7907 trial division stage. 7908 [Bodo Moeller] 7909 7910 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7911 as ASN1_TIME. 7912 [Steve Henson] 7913 7914 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7915 [Steve Henson] 7916 7917 *) New function BN_pseudo_rand(). 7918 [Ulf M�ller] 7919 7920 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7921 bignum version of BN_from_montgomery() with the working code from 7922 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7923 the comments. 7924 [Ulf M�ller] 7925 7926 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7927 made it impossible to use the same SSL_SESSION data structure in 7928 SSL2 clients in multiple threads. 7929 [Bodo Moeller] 7930 7931 *) The return value of RAND_load_file() no longer counts bytes obtained 7932 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7933 to seed the PRNG (previously an explicit byte count was required). 7934 [Ulf M�ller, Bodo M�ller] 7935 7936 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7937 used (char *) instead of (void *) and had casts all over the place. 7938 [Steve Henson] 7939 7940 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7941 [Ulf M�ller] 7942 7943 *) Retain source code compatibility for BN_prime_checks macro: 7944 BN_is_prime(..., BN_prime_checks, ...) now uses 7945 BN_prime_checks_for_size to determine the appropriate number of 7946 Rabin-Miller iterations. 7947 [Ulf M�ller] 7948 7949 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7950 DH_CHECK_P_NOT_SAFE_PRIME. 7951 (Check if this is true? OpenPGP calls them "strong".) 7952 [Ulf M�ller] 7953 7954 *) Merge the functionality of "dh" and "gendh" programs into a new program 7955 "dhparam". The old programs are retained for now but will handle DH keys 7956 (instead of parameters) in future. 7957 [Steve Henson] 7958 7959 *) Make the ciphers, s_server and s_client programs check the return values 7960 when a new cipher list is set. 7961 [Steve Henson] 7962 7963 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7964 ciphers. Before when the 56bit ciphers were enabled the sorting was 7965 wrong. 7966 7967 The syntax for the cipher sorting has been extended to support sorting by 7968 cipher-strength (using the strength_bits hard coded in the tables). 7969 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7970 7971 Fix a bug in the cipher-command parser: when supplying a cipher command 7972 string with an "undefined" symbol (neither command nor alphanumeric 7973 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7974 an error is flagged. 7975 7976 Due to the strength-sorting extension, the code of the 7977 ssl_create_cipher_list() function was completely rearranged. I hope that 7978 the readability was also increased :-) 7979 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7980 7981 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 7982 for the first serial number and places 2 in the serial number file. This 7983 avoids problems when the root CA is created with serial number zero and 7984 the first user certificate has the same issuer name and serial number 7985 as the root CA. 7986 [Steve Henson] 7987 7988 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 7989 the new code. Add documentation for this stuff. 7990 [Steve Henson] 7991 7992 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 7993 X509_*() to X509at_*() on the grounds that they don't handle X509 7994 structures and behave in an analagous way to the X509v3 functions: 7995 they shouldn't be called directly but wrapper functions should be used 7996 instead. 7997 7998 So we also now have some wrapper functions that call the X509at functions 7999 when passed certificate requests. (TO DO: similar things can be done with 8000 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 8001 things. Some of these need some d2i or i2d and print functionality 8002 because they handle more complex structures.) 8003 [Steve Henson] 8004 8005 *) Add missing #ifndefs that caused missing symbols when building libssl 8006 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 8007 NO_RSA in ssl/s2*.c. 8008 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 8009 8010 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 8011 has a return value which indicates the quality of the random data 8012 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 8013 error queue. New function RAND_pseudo_bytes() generates output that is 8014 guaranteed to be unique but not unpredictable. RAND_add is like 8015 RAND_seed, but takes an extra argument for an entropy estimate 8016 (RAND_seed always assumes full entropy). 8017 [Ulf M�ller] 8018 8019 *) Do more iterations of Rabin-Miller probable prime test (specifically, 8020 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 8021 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 8022 in crypto/bn/bn_prime.c for the complete table). This guarantees a 8023 false-positive rate of at most 2^-80 for random input. 8024 [Bodo Moeller] 8025 8026 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 8027 [Bodo Moeller] 8028 8029 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 8030 in the 0.9.5 release), this returns the chain 8031 from an X509_CTX structure with a dup of the stack and all 8032 the X509 reference counts upped: so the stack will exist 8033 after X509_CTX_cleanup() has been called. Modify pkcs12.c 8034 to use this. 8035 8036 Also make SSL_SESSION_print() print out the verify return 8037 code. 8038 [Steve Henson] 8039 8040 *) Add manpage for the pkcs12 command. Also change the default 8041 behaviour so MAC iteration counts are used unless the new 8042 -nomaciter option is used. This improves file security and 8043 only older versions of MSIE (4.0 for example) need it. 8044 [Steve Henson] 8045 8046 *) Honor the no-xxx Configure options when creating .DEF files. 8047 [Ulf M�ller] 8048 8049 *) Add PKCS#10 attributes to field table: challengePassword, 8050 unstructuredName and unstructuredAddress. These are taken from 8051 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 8052 international characters are used. 8053 8054 More changes to X509_ATTRIBUTE code: allow the setting of types 8055 based on strings. Remove the 'loc' parameter when adding 8056 attributes because these will be a SET OF encoding which is sorted 8057 in ASN1 order. 8058 [Steve Henson] 8059 8060 *) Initial changes to the 'req' utility to allow request generation 8061 automation. This will allow an application to just generate a template 8062 file containing all the field values and have req construct the 8063 request. 8064 8065 Initial support for X509_ATTRIBUTE handling. Stacks of these are 8066 used all over the place including certificate requests and PKCS#7 8067 structures. They are currently handled manually where necessary with 8068 some primitive wrappers for PKCS#7. The new functions behave in a 8069 manner analogous to the X509 extension functions: they allow 8070 attributes to be looked up by NID and added. 8071 8072 Later something similar to the X509V3 code would be desirable to 8073 automatically handle the encoding, decoding and printing of the 8074 more complex types. The string types like challengePassword can 8075 be handled by the string table functions. 8076 8077 Also modified the multi byte string table handling. Now there is 8078 a 'global mask' which masks out certain types. The table itself 8079 can use the flag STABLE_NO_MASK to ignore the mask setting: this 8080 is useful when for example there is only one permissible type 8081 (as in countryName) and using the mask might result in no valid 8082 types at all. 8083 [Steve Henson] 8084 8085 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 8086 SSL_get_peer_finished to allow applications to obtain the latest 8087 Finished messages sent to the peer or expected from the peer, 8088 respectively. (SSL_get_peer_finished is usually the Finished message 8089 actually received from the peer, otherwise the protocol will be aborted.) 8090 8091 As the Finished message are message digests of the complete handshake 8092 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 8093 be used for external authentication procedures when the authentication 8094 provided by SSL/TLS is not desired or is not enough. 8095 [Bodo Moeller] 8096 8097 *) Enhanced support for Alpha Linux is added. Now ./config checks if 8098 the host supports BWX extension and if Compaq C is present on the 8099 $PATH. Just exploiting of the BWX extension results in 20-30% 8100 performance kick for some algorithms, e.g. DES and RC4 to mention 8101 a couple. Compaq C in turn generates ~20% faster code for MD5 and 8102 SHA1. 8103 [Andy Polyakov] 8104 8105 *) Add support for MS "fast SGC". This is arguably a violation of the 8106 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 8107 weak crypto and after checking the certificate is SGC a second one 8108 with strong crypto. MS SGC stops the first handshake after receiving 8109 the server certificate message and sends a second client hello. Since 8110 a server will typically do all the time consuming operations before 8111 expecting any further messages from the client (server key exchange 8112 is the most expensive) there is little difference between the two. 8113 8114 To get OpenSSL to support MS SGC we have to permit a second client 8115 hello message after we have sent server done. In addition we have to 8116 reset the MAC if we do get this second client hello. 8117 [Steve Henson] 8118 8119 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 8120 if a DER encoded private key is RSA or DSA traditional format. Changed 8121 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 8122 format DER encoded private key. Newer code should use PKCS#8 format which 8123 has the key type encoded in the ASN1 structure. Added DER private key 8124 support to pkcs8 application. 8125 [Steve Henson] 8126 8127 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 8128 ciphersuites has been selected (as required by the SSL 3/TLS 1 8129 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 8130 is set, we interpret this as a request to violate the specification 8131 (the worst that can happen is a handshake failure, and 'correct' 8132 behaviour would result in a handshake failure anyway). 8133 [Bodo Moeller] 8134 8135 *) In SSL_CTX_add_session, take into account that there might be multiple 8136 SSL_SESSION structures with the same session ID (e.g. when two threads 8137 concurrently obtain them from an external cache). 8138 The internal cache can handle only one SSL_SESSION with a given ID, 8139 so if there's a conflict, we now throw out the old one to achieve 8140 consistency. 8141 [Bodo Moeller] 8142 8143 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8144 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8145 some routines that use cipher OIDs: some ciphers do not have OIDs 8146 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8147 example. 8148 [Steve Henson] 8149 8150 *) Simplify the trust setting structure and code. Now we just have 8151 two sequences of OIDs for trusted and rejected settings. These will 8152 typically have values the same as the extended key usage extension 8153 and any application specific purposes. 8154 8155 The trust checking code now has a default behaviour: it will just 8156 check for an object with the same NID as the passed id. Functions can 8157 be provided to override either the default behaviour or the behaviour 8158 for a given id. SSL client, server and email already have functions 8159 in place for compatibility: they check the NID and also return "trusted" 8160 if the certificate is self signed. 8161 [Steve Henson] 8162 8163 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8164 traditional format into an EVP_PKEY structure. 8165 [Steve Henson] 8166 8167 *) Add a password callback function PEM_cb() which either prompts for 8168 a password if usr_data is NULL or otherwise assumes it is a null 8169 terminated password. Allow passwords to be passed on command line 8170 environment or config files in a few more utilities. 8171 [Steve Henson] 8172 8173 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8174 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8175 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8176 Update documentation. 8177 [Steve Henson] 8178 8179 *) Support for ASN1 "NULL" type. This could be handled before by using 8180 ASN1_TYPE but there wasn't any function that would try to read a NULL 8181 and produce an error if it couldn't. For compatibility we also have 8182 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8183 don't allocate anything because they don't need to. 8184 [Steve Henson] 8185 8186 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8187 for details. 8188 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8189 8190 *) Rebuild of the memory allocation routines used by OpenSSL code and 8191 possibly others as well. The purpose is to make an interface that 8192 provide hooks so anyone can build a separate set of allocation and 8193 deallocation routines to be used by OpenSSL, for example memory 8194 pool implementations, or something else, which was previously hard 8195 since Malloc(), Realloc() and Free() were defined as macros having 8196 the values malloc, realloc and free, respectively (except for Win32 8197 compilations). The same is provided for memory debugging code. 8198 OpenSSL already comes with functionality to find memory leaks, but 8199 this gives people a chance to debug other memory problems. 8200 8201 With these changes, a new set of functions and macros have appeared: 8202 8203 CRYPTO_set_mem_debug_functions() [F] 8204 CRYPTO_get_mem_debug_functions() [F] 8205 CRYPTO_dbg_set_options() [F] 8206 CRYPTO_dbg_get_options() [F] 8207 CRYPTO_malloc_debug_init() [M] 8208 8209 The memory debug functions are NULL by default, unless the library 8210 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8211 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8212 gives the standard debugging functions that come with OpenSSL) or 8213 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8214 provided by the library user) must be used. When the standard 8215 debugging functions are used, CRYPTO_dbg_set_options can be used to 8216 request additional information: 8217 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8218 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8219 8220 Also, things like CRYPTO_set_mem_functions will always give the 8221 expected result (the new set of functions is used for allocation 8222 and deallocation) at all times, regardless of platform and compiler 8223 options. 8224 8225 To finish it up, some functions that were never use in any other 8226 way than through macros have a new API and new semantic: 8227 8228 CRYPTO_dbg_malloc() 8229 CRYPTO_dbg_realloc() 8230 CRYPTO_dbg_free() 8231 8232 All macros of value have retained their old syntax. 8233 [Richard Levitte and Bodo Moeller] 8234 8235 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8236 ordering of SMIMECapabilities wasn't in "strength order" and there 8237 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8238 algorithm. 8239 [Steve Henson] 8240 8241 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8242 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8243 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8244 8245 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8246 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8247 functionality to handle multipart/signed properly) and a utility 8248 called 'smime' to call all this stuff. This is based on code I 8249 originally wrote for Celo who have kindly allowed it to be 8250 included in OpenSSL. 8251 [Steve Henson] 8252 8253 *) Add variants des_set_key_checked and des_set_key_unchecked of 8254 des_set_key (aka des_key_sched). Global variable des_check_key 8255 decides which of these is called by des_set_key; this way 8256 des_check_key behaves as it always did, but applications and 8257 the library itself, which was buggy for des_check_key == 1, 8258 have a cleaner way to pick the version they need. 8259 [Bodo Moeller] 8260 8261 *) New function PKCS12_newpass() which changes the password of a 8262 PKCS12 structure. 8263 [Steve Henson] 8264 8265 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8266 dynamic mix. In both cases the ids can be used as an index into the 8267 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8268 functions so they accept a list of the field values and the 8269 application doesn't need to directly manipulate the X509_TRUST 8270 structure. 8271 [Steve Henson] 8272 8273 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8274 need initialising. 8275 [Steve Henson] 8276 8277 *) Modify the way the V3 extension code looks up extensions. This now 8278 works in a similar way to the object code: we have some "standard" 8279 extensions in a static table which is searched with OBJ_bsearch() 8280 and the application can add dynamic ones if needed. The file 8281 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8282 updated whenever a new extension is added to the core code and kept 8283 in ext_nid order. There is a simple program 'tabtest.c' which checks 8284 this. New extensions are not added too often so this file can readily 8285 be maintained manually. 8286 8287 There are two big advantages in doing things this way. The extensions 8288 can be looked up immediately and no longer need to be "added" using 8289 X509V3_add_standard_extensions(): this function now does nothing. 8290 [Side note: I get *lots* of email saying the extension code doesn't 8291 work because people forget to call this function] 8292 Also no dynamic allocation is done unless new extensions are added: 8293 so if we don't add custom extensions there is no need to call 8294 X509V3_EXT_cleanup(). 8295 [Steve Henson] 8296 8297 *) Modify enc utility's salting as follows: make salting the default. Add a 8298 magic header, so unsalted files fail gracefully instead of just decrypting 8299 to garbage. This is because not salting is a big security hole, so people 8300 should be discouraged from doing it. 8301 [Ben Laurie] 8302 8303 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8304 digest to be passed on the command line but it only used this 8305 parameter when signing a certificate. Modified so all relevant 8306 operations are affected by the digest parameter including the 8307 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8308 DSA key was used because it didn't fix the digest. 8309 [Steve Henson] 8310 8311 *) Initial certificate chain verify code. Currently tests the untrusted 8312 certificates for consistency with the verify purpose (which is set 8313 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8314 8315 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8316 this is because it will reject chains with invalid extensions whereas 8317 every previous version of OpenSSL and SSLeay made no checks at all. 8318 8319 Trust code: checks the root CA for the relevant trust settings. Trust 8320 settings have an initial value consistent with the verify purpose: e.g. 8321 if the verify purpose is for SSL client use it expects the CA to be 8322 trusted for SSL client use. However the default value can be changed to 8323 permit custom trust settings: one example of this would be to only trust 8324 certificates from a specific "secure" set of CAs. 8325 8326 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8327 which should be used for version portability: especially since the 8328 verify structure is likely to change more often now. 8329 8330 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8331 to set them. If not set then assume SSL clients will verify SSL servers 8332 and vice versa. 8333 8334 Two new options to the verify program: -untrusted allows a set of 8335 untrusted certificates to be passed in and -purpose which sets the 8336 intended purpose of the certificate. If a purpose is set then the 8337 new chain verify code is used to check extension consistency. 8338 [Steve Henson] 8339 8340 *) Support for the authority information access extension. 8341 [Steve Henson] 8342 8343 *) Modify RSA and DSA PEM read routines to transparently handle 8344 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8345 public keys in a format compatible with certificate 8346 SubjectPublicKeyInfo structures. Unfortunately there were already 8347 functions called *_PublicKey_* which used various odd formats so 8348 these are retained for compatibility: however the DSA variants were 8349 never in a public release so they have been deleted. Changed dsa/rsa 8350 utilities to handle the new format: note no releases ever handled public 8351 keys so we should be OK. 8352 8353 The primary motivation for this change is to avoid the same fiasco 8354 that dogs private keys: there are several incompatible private key 8355 formats some of which are standard and some OpenSSL specific and 8356 require various evil hacks to allow partial transparent handling and 8357 even then it doesn't work with DER formats. Given the option anything 8358 other than PKCS#8 should be dumped: but the other formats have to 8359 stay in the name of compatibility. 8360 8361 With public keys and the benefit of hindsight one standard format 8362 is used which works with EVP_PKEY, RSA or DSA structures: though 8363 it clearly returns an error if you try to read the wrong kind of key. 8364 8365 Added a -pubkey option to the 'x509' utility to output the public key. 8366 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8367 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8368 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8369 that do the same as the EVP_PKEY_assign_*() except they up the 8370 reference count of the added key (they don't "swallow" the 8371 supplied key). 8372 [Steve Henson] 8373 8374 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8375 CRLs would fail if the file contained no certificates or no CRLs: 8376 added a new function to read in both types and return the number 8377 read: this means that if none are read it will be an error. The 8378 DER versions of the certificate and CRL reader would always fail 8379 because it isn't possible to mix certificates and CRLs in DER format 8380 without choking one or the other routine. Changed this to just read 8381 a certificate: this is the best we can do. Also modified the code 8382 in apps/verify.c to take notice of return codes: it was previously 8383 attempting to read in certificates from NULL pointers and ignoring 8384 any errors: this is one reason why the cert and CRL reader seemed 8385 to work. It doesn't check return codes from the default certificate 8386 routines: these may well fail if the certificates aren't installed. 8387 [Steve Henson] 8388 8389 *) Code to support otherName option in GeneralName. 8390 [Steve Henson] 8391 8392 *) First update to verify code. Change the verify utility 8393 so it warns if it is passed a self signed certificate: 8394 for consistency with the normal behaviour. X509_verify 8395 has been modified to it will now verify a self signed 8396 certificate if *exactly* the same certificate appears 8397 in the store: it was previously impossible to trust a 8398 single self signed certificate. This means that: 8399 openssl verify ss.pem 8400 now gives a warning about a self signed certificate but 8401 openssl verify -CAfile ss.pem ss.pem 8402 is OK. 8403 [Steve Henson] 8404 8405 *) For servers, store verify_result in SSL_SESSION data structure 8406 (and add it to external session representation). 8407 This is needed when client certificate verifications fails, 8408 but an application-provided verification callback (set by 8409 SSL_CTX_set_cert_verify_callback) allows accepting the session 8410 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8411 but returns 1): When the session is reused, we have to set 8412 ssl->verify_result to the appropriate error code to avoid 8413 security holes. 8414 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8415 8416 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8417 case in PKCS7_dataInit() where the signed PKCS7 structure 8418 didn't contain any existing data because it was being created. 8419 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8420 8421 *) Add a salt to the key derivation routines in enc.c. This 8422 forms the first 8 bytes of the encrypted file. Also add a 8423 -S option to allow a salt to be input on the command line. 8424 [Steve Henson] 8425 8426 *) New function X509_cmp(). Oddly enough there wasn't a function 8427 to compare two certificates. We do this by working out the SHA1 8428 hash and comparing that. X509_cmp() will be needed by the trust 8429 code. 8430 [Steve Henson] 8431 8432 *) SSL_get1_session() is like SSL_get_session(), but increments 8433 the reference count in the SSL_SESSION returned. 8434 [Geoff Thorpe <geoff@eu.c2.net>] 8435 8436 *) Fix for 'req': it was adding a null to request attributes. 8437 Also change the X509_LOOKUP and X509_INFO code to handle 8438 certificate auxiliary information. 8439 [Steve Henson] 8440 8441 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8442 the 'enc' command. 8443 [Steve Henson] 8444 8445 *) Add the possibility to add extra information to the memory leak 8446 detecting output, to form tracebacks, showing from where each 8447 allocation was originated: CRYPTO_push_info("constant string") adds 8448 the string plus current file name and line number to a per-thread 8449 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8450 is like calling CYRPTO_pop_info() until the stack is empty. 8451 Also updated memory leak detection code to be multi-thread-safe. 8452 [Richard Levitte] 8453 8454 *) Add options -text and -noout to pkcs7 utility and delete the 8455 encryption options which never did anything. Update docs. 8456 [Steve Henson] 8457 8458 *) Add options to some of the utilities to allow the pass phrase 8459 to be included on either the command line (not recommended on 8460 OSes like Unix) or read from the environment. Update the 8461 manpages and fix a few bugs. 8462 [Steve Henson] 8463 8464 *) Add a few manpages for some of the openssl commands. 8465 [Steve Henson] 8466 8467 *) Fix the -revoke option in ca. It was freeing up memory twice, 8468 leaking and not finding already revoked certificates. 8469 [Steve Henson] 8470 8471 *) Extensive changes to support certificate auxiliary information. 8472 This involves the use of X509_CERT_AUX structure and X509_AUX 8473 functions. An X509_AUX function such as PEM_read_X509_AUX() 8474 can still read in a certificate file in the usual way but it 8475 will also read in any additional "auxiliary information". By 8476 doing things this way a fair degree of compatibility can be 8477 retained: existing certificates can have this information added 8478 using the new 'x509' options. 8479 8480 Current auxiliary information includes an "alias" and some trust 8481 settings. The trust settings will ultimately be used in enhanced 8482 certificate chain verification routines: currently a certificate 8483 can only be trusted if it is self signed and then it is trusted 8484 for all purposes. 8485 [Steve Henson] 8486 8487 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8488 The problem was that one of the replacement routines had not been working 8489 since SSLeay releases. For now the offending routine has been replaced 8490 with non-optimised assembler. Even so, this now gives around 95% 8491 performance improvement for 1024 bit RSA signs. 8492 [Mark Cox] 8493 8494 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8495 handling. Most clients have the effective key size in bits equal to 8496 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8497 A few however don't do this and instead use the size of the decrypted key 8498 to determine the RC2 key length and the AlgorithmIdentifier to determine 8499 the effective key length. In this case the effective key length can still 8500 be 40 bits but the key length can be 168 bits for example. This is fixed 8501 by manually forcing an RC2 key into the EVP_PKEY structure because the 8502 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8503 the key length and effective key length are equal. 8504 [Steve Henson] 8505 8506 *) Add a bunch of functions that should simplify the creation of 8507 X509_NAME structures. Now you should be able to do: 8508 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8509 and have it automatically work out the correct field type and fill in 8510 the structures. The more adventurous can try: 8511 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8512 and it will (hopefully) work out the correct multibyte encoding. 8513 [Steve Henson] 8514 8515 *) Change the 'req' utility to use the new field handling and multibyte 8516 copy routines. Before the DN field creation was handled in an ad hoc 8517 way in req, ca, and x509 which was rather broken and didn't support 8518 BMPStrings or UTF8Strings. Since some software doesn't implement 8519 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8520 using the dirstring_type option. See the new comment in the default 8521 openssl.cnf for more info. 8522 [Steve Henson] 8523 8524 *) Make crypto/rand/md_rand.c more robust: 8525 - Assure unique random numbers after fork(). 8526 - Make sure that concurrent threads access the global counter and 8527 md serializably so that we never lose entropy in them 8528 or use exactly the same state in multiple threads. 8529 Access to the large state is not always serializable because 8530 the additional locking could be a performance killer, and 8531 md should be large enough anyway. 8532 [Bodo Moeller] 8533 8534 *) New file apps/app_rand.c with commonly needed functionality 8535 for handling the random seed file. 8536 8537 Use the random seed file in some applications that previously did not: 8538 ca, 8539 dsaparam -genkey (which also ignored its '-rand' option), 8540 s_client, 8541 s_server, 8542 x509 (when signing). 8543 Except on systems with /dev/urandom, it is crucial to have a random 8544 seed file at least for key creation, DSA signing, and for DH exchanges; 8545 for RSA signatures we could do without one. 8546 8547 gendh and gendsa (unlike genrsa) used to read only the first byte 8548 of each file listed in the '-rand' option. The function as previously 8549 found in genrsa is now in app_rand.c and is used by all programs 8550 that support '-rand'. 8551 [Bodo Moeller] 8552 8553 *) In RAND_write_file, use mode 0600 for creating files; 8554 don't just chmod when it may be too late. 8555 [Bodo Moeller] 8556 8557 *) Report an error from X509_STORE_load_locations 8558 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8559 [Bill Perry] 8560 8561 *) New function ASN1_mbstring_copy() this copies a string in either 8562 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8563 into an ASN1_STRING type. A mask of permissible types is passed 8564 and it chooses the "minimal" type to use or an error if not type 8565 is suitable. 8566 [Steve Henson] 8567 8568 *) Add function equivalents to the various macros in asn1.h. The old 8569 macros are retained with an M_ prefix. Code inside the library can 8570 use the M_ macros. External code (including the openssl utility) 8571 should *NOT* in order to be "shared library friendly". 8572 [Steve Henson] 8573 8574 *) Add various functions that can check a certificate's extensions 8575 to see if it usable for various purposes such as SSL client, 8576 server or S/MIME and CAs of these types. This is currently 8577 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8578 verification. Also added a -purpose flag to x509 utility to 8579 print out all the purposes. 8580 [Steve Henson] 8581 8582 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8583 functions. 8584 [Steve Henson] 8585 8586 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8587 for, obtain and decode and extension and obtain its critical flag. 8588 This allows all the necessary extension code to be handled in a 8589 single function call. 8590 [Steve Henson] 8591 8592 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8593 platforms. See crypto/rc4/rc4_enc.c for further details. 8594 [Andy Polyakov] 8595 8596 *) New -noout option to asn1parse. This causes no output to be produced 8597 its main use is when combined with -strparse and -out to extract data 8598 from a file (which may not be in ASN.1 format). 8599 [Steve Henson] 8600 8601 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8602 when producing the local key id. 8603 [Richard Levitte <levitte@stacken.kth.se>] 8604 8605 *) New option -dhparam in s_server. This allows a DH parameter file to be 8606 stated explicitly. If it is not stated then it tries the first server 8607 certificate file. The previous behaviour hard coded the filename 8608 "server.pem". 8609 [Steve Henson] 8610 8611 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8612 a public key to be input or output. For example: 8613 openssl rsa -in key.pem -pubout -out pubkey.pem 8614 Also added necessary DSA public key functions to handle this. 8615 [Steve Henson] 8616 8617 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8618 in the message. This was handled by allowing 8619 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8620 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8621 8622 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8623 to the end of the strings whereas this didn't. This would cause problems 8624 if strings read with d2i_ASN1_bytes() were later modified. 8625 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8626 8627 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8628 data and it contains EOF it will end up returning an error. This is 8629 caused by input 46 bytes long. The cause is due to the way base64 8630 BIOs find the start of base64 encoded data. They do this by trying a 8631 trial decode on each line until they find one that works. When they 8632 do a flag is set and it starts again knowing it can pass all the 8633 data directly through the decoder. Unfortunately it doesn't reset 8634 the context it uses. This means that if EOF is reached an attempt 8635 is made to pass two EOFs through the context and this causes the 8636 resulting error. This can also cause other problems as well. As is 8637 usual with these problems it takes *ages* to find and the fix is 8638 trivial: move one line. 8639 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8640 8641 *) Ugly workaround to get s_client and s_server working under Windows. The 8642 old code wouldn't work because it needed to select() on sockets and the 8643 tty (for keypresses and to see if data could be written). Win32 only 8644 supports select() on sockets so we select() with a 1s timeout on the 8645 sockets and then see if any characters are waiting to be read, if none 8646 are present then we retry, we also assume we can always write data to 8647 the tty. This isn't nice because the code then blocks until we've 8648 received a complete line of data and it is effectively polling the 8649 keyboard at 1s intervals: however it's quite a bit better than not 8650 working at all :-) A dedicated Windows application might handle this 8651 with an event loop for example. 8652 [Steve Henson] 8653 8654 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8655 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8656 will be called when RSA_sign() and RSA_verify() are used. This is useful 8657 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8658 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8659 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8660 This necessitated the support of an extra signature type NID_md5_sha1 8661 for SSL signatures and modifications to the SSL library to use it instead 8662 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8663 [Steve Henson] 8664 8665 *) Add new -verify -CAfile and -CApath options to the crl program, these 8666 will lookup a CRL issuers certificate and verify the signature in a 8667 similar way to the verify program. Tidy up the crl program so it 8668 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8669 less strict. It will now permit CRL extensions even if it is not 8670 a V2 CRL: this will allow it to tolerate some broken CRLs. 8671 [Steve Henson] 8672 8673 *) Initialize all non-automatic variables each time one of the openssl 8674 sub-programs is started (this is necessary as they may be started 8675 multiple times from the "OpenSSL>" prompt). 8676 [Lennart Bang, Bodo Moeller] 8677 8678 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8679 removing all other RSA functionality (this is what NO_RSA does). This 8680 is so (for example) those in the US can disable those operations covered 8681 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8682 key generation. 8683 [Steve Henson] 8684 8685 *) Non-copying interface to BIO pairs. 8686 (still largely untested) 8687 [Bodo Moeller] 8688 8689 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8690 ASCII string. This was handled independently in various places before. 8691 [Steve Henson] 8692 8693 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8694 UTF8 strings a character at a time. 8695 [Steve Henson] 8696 8697 *) Use client_version from client hello to select the protocol 8698 (s23_srvr.c) and for RSA client key exchange verification 8699 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8700 [Bodo Moeller] 8701 8702 *) Add various utility functions to handle SPKACs, these were previously 8703 handled by poking round in the structure internals. Added new function 8704 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8705 print, verify and generate SPKACs. Based on an original idea from 8706 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8707 [Steve Henson] 8708 8709 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8710 [Andy Polyakov] 8711 8712 *) Allow the config file extension section to be overwritten on the 8713 command line. Based on an original idea from Massimiliano Pala 8714 <madwolf@comune.modena.it>. The new option is called -extensions 8715 and can be applied to ca, req and x509. Also -reqexts to override 8716 the request extensions in req and -crlexts to override the crl extensions 8717 in ca. 8718 [Steve Henson] 8719 8720 *) Add new feature to the SPKAC handling in ca. Now you can include 8721 the same field multiple times by preceding it by "XXXX." for example: 8722 1.OU="Unit name 1" 8723 2.OU="Unit name 2" 8724 this is the same syntax as used in the req config file. 8725 [Steve Henson] 8726 8727 *) Allow certificate extensions to be added to certificate requests. These 8728 are specified in a 'req_extensions' option of the req section of the 8729 config file. They can be printed out with the -text option to req but 8730 are otherwise ignored at present. 8731 [Steve Henson] 8732 8733 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8734 data read consists of only the final block it would not decrypted because 8735 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8736 A misplaced 'break' also meant the decrypted final block might not be 8737 copied until the next read. 8738 [Steve Henson] 8739 8740 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8741 a few extra parameters to the DH structure: these will be useful if 8742 for example we want the value of 'q' or implement X9.42 DH. 8743 [Steve Henson] 8744 8745 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8746 provides hooks that allow the default DSA functions or functions on a 8747 "per key" basis to be replaced. This allows hardware acceleration and 8748 hardware key storage to be handled without major modification to the 8749 library. Also added low level modexp hooks and CRYPTO_EX structure and 8750 associated functions. 8751 [Steve Henson] 8752 8753 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8754 as "read only": it can't be written to and the buffer it points to will 8755 not be freed. Reading from a read only BIO is much more efficient than 8756 a normal memory BIO. This was added because there are several times when 8757 an area of memory needs to be read from a BIO. The previous method was 8758 to create a memory BIO and write the data to it, this results in two 8759 copies of the data and an O(n^2) reading algorithm. There is a new 8760 function BIO_new_mem_buf() which creates a read only memory BIO from 8761 an area of memory. Also modified the PKCS#7 routines to use read only 8762 memory BIOs. 8763 [Steve Henson] 8764 8765 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8766 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8767 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8768 but a retry condition occured while trying to read the rest. 8769 [Bodo Moeller] 8770 8771 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8772 NID_pkcs7_encrypted by default: this was wrong since this should almost 8773 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8774 the encrypted data type: this is a more sensible place to put it and it 8775 allows the PKCS#12 code to be tidied up that duplicated this 8776 functionality. 8777 [Steve Henson] 8778 8779 *) Changed obj_dat.pl script so it takes its input and output files on 8780 the command line. This should avoid shell escape redirection problems 8781 under Win32. 8782 [Steve Henson] 8783 8784 *) Initial support for certificate extension requests, these are included 8785 in things like Xenroll certificate requests. Included functions to allow 8786 extensions to be obtained and added. 8787 [Steve Henson] 8788 8789 *) -crlf option to s_client and s_server for sending newlines as 8790 CRLF (as required by many protocols). 8791 [Bodo Moeller] 8792 8793 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8794 8795 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8796 [Ralf S. Engelschall] 8797 8798 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8799 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8800 8801 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8802 program. 8803 [Steve Henson] 8804 8805 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8806 DH parameters/keys (q is lost during that conversion, but the resulting 8807 DH parameters contain its length). 8808 8809 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8810 much faster than DH_generate_parameters (which creates parameters 8811 where p = 2*q + 1), and also the smaller q makes DH computations 8812 much more efficient (160-bit exponentiation instead of 1024-bit 8813 exponentiation); so this provides a convenient way to support DHE 8814 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8815 utter importance to use 8816 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8817 or 8818 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8819 when such DH parameters are used, because otherwise small subgroup 8820 attacks may become possible! 8821 [Bodo Moeller] 8822 8823 *) Avoid memory leak in i2d_DHparams. 8824 [Bodo Moeller] 8825 8826 *) Allow the -k option to be used more than once in the enc program: 8827 this allows the same encrypted message to be read by multiple recipients. 8828 [Steve Henson] 8829 8830 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8831 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8832 it will always use the numerical form of the OID, even if it has a short 8833 or long name. 8834 [Steve Henson] 8835 8836 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8837 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8838 otherwise bn_mod_exp was called. In the case of hardware keys for example 8839 no private key components need be present and it might store extra data 8840 in the RSA structure, which cannot be accessed from bn_mod_exp. 8841 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8842 private key operations. 8843 [Steve Henson] 8844 8845 *) Added support for SPARC Linux. 8846 [Andy Polyakov] 8847 8848 *) pem_password_cb function type incompatibly changed from 8849 typedef int pem_password_cb(char *buf, int size, int rwflag); 8850 to 8851 ....(char *buf, int size, int rwflag, void *userdata); 8852 so that applications can pass data to their callbacks: 8853 The PEM[_ASN1]_{read,write}... functions and macros now take an 8854 additional void * argument, which is just handed through whenever 8855 the password callback is called. 8856 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8857 8858 New function SSL_CTX_set_default_passwd_cb_userdata. 8859 8860 Compatibility note: As many C implementations push function arguments 8861 onto the stack in reverse order, the new library version is likely to 8862 interoperate with programs that have been compiled with the old 8863 pem_password_cb definition (PEM_whatever takes some data that 8864 happens to be on the stack as its last argument, and the callback 8865 just ignores this garbage); but there is no guarantee whatsoever that 8866 this will work. 8867 8868 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8869 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8870 problems not only on Windows, but also on some Unix platforms. 8871 To avoid problematic command lines, these definitions are now in an 8872 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8873 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8874 [Bodo Moeller] 8875 8876 *) MIPS III/IV assembler module is reimplemented. 8877 [Andy Polyakov] 8878 8879 *) More DES library cleanups: remove references to srand/rand and 8880 delete an unused file. 8881 [Ulf M�ller] 8882 8883 *) Add support for the the free Netwide assembler (NASM) under Win32, 8884 since not many people have MASM (ml) and it can be hard to obtain. 8885 This is currently experimental but it seems to work OK and pass all 8886 the tests. Check out INSTALL.W32 for info. 8887 [Steve Henson] 8888 8889 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8890 without temporary keys kept an extra copy of the server key, 8891 and connections with temporary keys did not free everything in case 8892 of an error. 8893 [Bodo Moeller] 8894 8895 *) New function RSA_check_key and new openssl rsa option -check 8896 for verifying the consistency of RSA keys. 8897 [Ulf Moeller, Bodo Moeller] 8898 8899 *) Various changes to make Win32 compile work: 8900 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8901 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8902 comparison" warnings. 8903 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8904 [Steve Henson] 8905 8906 *) Add a debugging option to PKCS#5 v2 key generation function: when 8907 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8908 derived keys are printed to stderr. 8909 [Steve Henson] 8910 8911 *) Copy the flags in ASN1_STRING_dup(). 8912 [Roman E. Pavlov <pre@mo.msk.ru>] 8913 8914 *) The x509 application mishandled signing requests containing DSA 8915 keys when the signing key was also DSA and the parameters didn't match. 8916 8917 It was supposed to omit the parameters when they matched the signing key: 8918 the verifying software was then supposed to automatically use the CA's 8919 parameters if they were absent from the end user certificate. 8920 8921 Omitting parameters is no longer recommended. The test was also 8922 the wrong way round! This was probably due to unusual behaviour in 8923 EVP_cmp_parameters() which returns 1 if the parameters match. 8924 This meant that parameters were omitted when they *didn't* match and 8925 the certificate was useless. Certificates signed with 'ca' didn't have 8926 this bug. 8927 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8928 8929 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8930 The interface is as follows: 8931 Applications can use 8932 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8933 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8934 "off" is now the default. 8935 The library internally uses 8936 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8937 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8938 to disable memory-checking temporarily. 8939 8940 Some inconsistent states that previously were possible (and were 8941 even the default) are now avoided. 8942 8943 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8944 with each memory chunk allocated; this is occasionally more helpful 8945 than just having a counter. 8946 8947 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8948 8949 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8950 extensions. 8951 [Bodo Moeller] 8952 8953 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8954 which largely parallels "options", but is for changing API behaviour, 8955 whereas "options" are about protocol behaviour. 8956 Initial "mode" flags are: 8957 8958 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8959 a single record has been written. 8960 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8961 retries use the same buffer location. 8962 (But all of the contents must be 8963 copied!) 8964 [Bodo Moeller] 8965 8966 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8967 worked. 8968 8969 *) Fix problems with no-hmac etc. 8970 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8971 8972 *) New functions RSA_get_default_method(), RSA_set_method() and 8973 RSA_get_method(). These allows replacement of RSA_METHODs without having 8974 to mess around with the internals of an RSA structure. 8975 [Steve Henson] 8976 8977 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8978 Also really enable memory leak checks in openssl.c and in some 8979 test programs. 8980 [Chad C. Mulligan, Bodo Moeller] 8981 8982 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 8983 up the length of negative integers. This has now been simplified to just 8984 store the length when it is first determined and use it later, rather 8985 than trying to keep track of where data is copied and updating it to 8986 point to the end. 8987 [Steve Henson, reported by Brien Wheeler 8988 <bwheeler@authentica-security.com>] 8989 8990 *) Add a new function PKCS7_signatureVerify. This allows the verification 8991 of a PKCS#7 signature but with the signing certificate passed to the 8992 function itself. This contrasts with PKCS7_dataVerify which assumes the 8993 certificate is present in the PKCS#7 structure. This isn't always the 8994 case: certificates can be omitted from a PKCS#7 structure and be 8995 distributed by "out of band" means (such as a certificate database). 8996 [Steve Henson] 8997 8998 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 8999 function prototypes in pem.h, also change util/mkdef.pl to add the 9000 necessary function names. 9001 [Steve Henson] 9002 9003 *) mk1mf.pl (used by Windows builds) did not properly read the 9004 options set by Configure in the top level Makefile, and Configure 9005 was not even able to write more than one option correctly. 9006 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 9007 [Bodo Moeller] 9008 9009 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 9010 file to be loaded from a BIO or FILE pointer. The BIO version will 9011 for example allow memory BIOs to contain config info. 9012 [Steve Henson] 9013 9014 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 9015 Whoever hopes to achieve shared-library compatibility across versions 9016 must use this, not the compile-time macro. 9017 (Exercise 0.9.4: Which is the minimum library version required by 9018 such programs?) 9019 Note: All this applies only to multi-threaded programs, others don't 9020 need locks. 9021 [Bodo Moeller] 9022 9023 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 9024 through a BIO pair triggered the default case, i.e. 9025 SSLerr(...,SSL_R_UNKNOWN_STATE). 9026 [Bodo Moeller] 9027 9028 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 9029 can use the SSL library even if none of the specific BIOs is 9030 appropriate. 9031 [Bodo Moeller] 9032 9033 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 9034 for the encoded length. 9035 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 9036 9037 *) Add initial documentation of the X509V3 functions. 9038 [Steve Henson] 9039 9040 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 9041 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 9042 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 9043 secure PKCS#8 private key format with a high iteration count. 9044 [Steve Henson] 9045 9046 *) Fix determination of Perl interpreter: A perl or perl5 9047 _directory_ in $PATH was also accepted as the interpreter. 9048 [Ralf S. Engelschall] 9049 9050 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 9051 wrong with it but it was very old and did things like calling 9052 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 9053 unusual formatting. 9054 [Steve Henson] 9055 9056 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 9057 to use the new extension code. 9058 [Steve Henson] 9059 9060 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 9061 with macros. This should make it easier to change their form, add extra 9062 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 9063 constant. 9064 [Steve Henson] 9065 9066 *) Add to configuration table a new entry that can specify an alternative 9067 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 9068 according to Mark Crispin <MRC@Panda.COM>. 9069 [Bodo Moeller] 9070 9071#if 0 9072 *) DES CBC did not update the IV. Weird. 9073 [Ben Laurie] 9074#else 9075 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 9076 Changing the behaviour of the former might break existing programs -- 9077 where IV updating is needed, des_ncbc_encrypt can be used. 9078#endif 9079 9080 *) When bntest is run from "make test" it drives bc to check its 9081 calculations, as well as internally checking them. If an internal check 9082 fails, it needs to cause bc to give a non-zero result or make test carries 9083 on without noticing the failure. Fixed. 9084 [Ben Laurie] 9085 9086 *) DES library cleanups. 9087 [Ulf M�ller] 9088 9089 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 9090 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 9091 ciphers. NOTE: although the key derivation function has been verified 9092 against some published test vectors it has not been extensively tested 9093 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 9094 of v2.0. 9095 [Steve Henson] 9096 9097 *) Instead of "mkdir -p", which is not fully portable, use new 9098 Perl script "util/mkdir-p.pl". 9099 [Bodo Moeller] 9100 9101 *) Rewrite the way password based encryption (PBE) is handled. It used to 9102 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 9103 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 9104 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 9105 the 'parameter' field of the AlgorithmIdentifier is passed to the 9106 underlying key generation function so it must do its own ASN1 parsing. 9107 This has also changed the EVP_PBE_CipherInit() function which now has a 9108 'parameter' argument instead of literal salt and iteration count values 9109 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 9110 [Steve Henson] 9111 9112 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 9113 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 9114 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 9115 KEY" because this clashed with PKCS#8 unencrypted string. Since this 9116 value was just used as a "magic string" and not used directly its 9117 value doesn't matter. 9118 [Steve Henson] 9119 9120 *) Introduce some semblance of const correctness to BN. Shame C doesn't 9121 support mutable. 9122 [Ben Laurie] 9123 9124 *) "linux-sparc64" configuration (ultrapenguin). 9125 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 9126 "linux-sparc" configuration. 9127 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 9128 9129 *) config now generates no-xxx options for missing ciphers. 9130 [Ulf M�ller] 9131 9132 *) Support the EBCDIC character set (work in progress). 9133 File ebcdic.c not yet included because it has a different license. 9134 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9135 9136 *) Support BS2000/OSD-POSIX. 9137 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9138 9139 *) Make callbacks for key generation use void * instead of char *. 9140 [Ben Laurie] 9141 9142 *) Make S/MIME samples compile (not yet tested). 9143 [Ben Laurie] 9144 9145 *) Additional typesafe stacks. 9146 [Ben Laurie] 9147 9148 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9149 [Bodo Moeller] 9150 9151 9152 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9153 9154 *) New configuration variant "sco5-gcc". 9155 9156 *) Updated some demos. 9157 [Sean O Riordain, Wade Scholine] 9158 9159 *) Add missing BIO_free at exit of pkcs12 application. 9160 [Wu Zhigang] 9161 9162 *) Fix memory leak in conf.c. 9163 [Steve Henson] 9164 9165 *) Updates for Win32 to assembler version of MD5. 9166 [Steve Henson] 9167 9168 *) Set #! path to perl in apps/der_chop to where we found it 9169 instead of using a fixed path. 9170 [Bodo Moeller] 9171 9172 *) SHA library changes for irix64-mips4-cc. 9173 [Andy Polyakov] 9174 9175 *) Improvements for VMS support. 9176 [Richard Levitte] 9177 9178 9179 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9180 9181 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9182 This also avoids the problems with SC4.2 and unpatched SC5. 9183 [Andy Polyakov <appro@fy.chalmers.se>] 9184 9185 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9186 These are required because of the typesafe stack would otherwise break 9187 existing code. If old code used a structure member which used to be STACK 9188 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9189 sk_num or sk_value it would produce an error because the num, data members 9190 are not present in STACK_OF. Now it just produces a warning. sk_set 9191 replaces the old method of assigning a value to sk_value 9192 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9193 that does this will no longer work (and should use sk_set instead) but 9194 this could be regarded as a "questionable" behaviour anyway. 9195 [Steve Henson] 9196 9197 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9198 correctly handle encrypted S/MIME data. 9199 [Steve Henson] 9200 9201 *) Change type of various DES function arguments from des_cblock 9202 (which means, in function argument declarations, pointer to char) 9203 to des_cblock * (meaning pointer to array with 8 char elements), 9204 which allows the compiler to do more typechecking; it was like 9205 that back in SSLeay, but with lots of ugly casts. 9206 9207 Introduce new type const_des_cblock. 9208 [Bodo Moeller] 9209 9210 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9211 problems: find RecipientInfo structure that matches recipient certificate 9212 and initialise the ASN1 structures properly based on passed cipher. 9213 [Steve Henson] 9214 9215 *) Belatedly make the BN tests actually check the results. 9216 [Ben Laurie] 9217 9218 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9219 to and from BNs: it was completely broken. New compilation option 9220 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9221 key elements as negative integers. 9222 [Steve Henson] 9223 9224 *) Reorganize and speed up MD5. 9225 [Andy Polyakov <appro@fy.chalmers.se>] 9226 9227 *) VMS support. 9228 [Richard Levitte <richard@levitte.org>] 9229 9230 *) New option -out to asn1parse to allow the parsed structure to be 9231 output to a file. This is most useful when combined with the -strparse 9232 option to examine the output of things like OCTET STRINGS. 9233 [Steve Henson] 9234 9235 *) Make SSL library a little more fool-proof by not requiring any longer 9236 that SSL_set_{accept,connect}_state be called before 9237 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9238 in many applications because usually everything *appeared* to work as 9239 intended anyway -- now it really works as intended). 9240 [Bodo Moeller] 9241 9242 *) Move openssl.cnf out of lib/. 9243 [Ulf M�ller] 9244 9245 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9246 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9247 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9248 [Ralf S. Engelschall] 9249 9250 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9251 handle PKCS#7 enveloped data properly. 9252 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9253 9254 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9255 copying pointers. The cert_st handling is changed by this in 9256 various ways (and thus what used to be known as ctx->default_cert 9257 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9258 any longer when s->cert does not give us what we need). 9259 ssl_cert_instantiate becomes obsolete by this change. 9260 As soon as we've got the new code right (possibly it already is?), 9261 we have solved a couple of bugs of the earlier code where s->cert 9262 was used as if it could not have been shared with other SSL structures. 9263 9264 Note that using the SSL API in certain dirty ways now will result 9265 in different behaviour than observed with earlier library versions: 9266 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9267 does not influence s as it used to. 9268 9269 In order to clean up things more thoroughly, inside SSL_SESSION 9270 we don't use CERT any longer, but a new structure SESS_CERT 9271 that holds per-session data (if available); currently, this is 9272 the peer's certificate chain and, for clients, the server's certificate 9273 and temporary key. CERT holds only those values that can have 9274 meaningful defaults in an SSL_CTX. 9275 [Bodo Moeller] 9276 9277 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9278 from the internal representation. Various PKCS#7 fixes: remove some 9279 evil casts and set the enc_dig_alg field properly based on the signing 9280 key type. 9281 [Steve Henson] 9282 9283 *) Allow PKCS#12 password to be set from the command line or the 9284 environment. Let 'ca' get its config file name from the environment 9285 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9286 and 'x509'). 9287 [Steve Henson] 9288 9289 *) Allow certificate policies extension to use an IA5STRING for the 9290 organization field. This is contrary to the PKIX definition but 9291 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9292 extension option. 9293 [Steve Henson] 9294 9295 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9296 without disallowing inline assembler and the like for non-pedantic builds. 9297 [Ben Laurie] 9298 9299 *) Support Borland C++ builder. 9300 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9301 9302 *) Support Mingw32. 9303 [Ulf M�ller] 9304 9305 *) SHA-1 cleanups and performance enhancements. 9306 [Andy Polyakov <appro@fy.chalmers.se>] 9307 9308 *) Sparc v8plus assembler for the bignum library. 9309 [Andy Polyakov <appro@fy.chalmers.se>] 9310 9311 *) Accept any -xxx and +xxx compiler options in Configure. 9312 [Ulf M�ller] 9313 9314 *) Update HPUX configuration. 9315 [Anonymous] 9316 9317 *) Add missing sk_<type>_unshift() function to safestack.h 9318 [Ralf S. Engelschall] 9319 9320 *) New function SSL_CTX_use_certificate_chain_file that sets the 9321 "extra_cert"s in addition to the certificate. (This makes sense 9322 only for "PEM" format files, as chains as a whole are not 9323 DER-encoded.) 9324 [Bodo Moeller] 9325 9326 *) Support verify_depth from the SSL API. 9327 x509_vfy.c had what can be considered an off-by-one-error: 9328 Its depth (which was not part of the external interface) 9329 was actually counting the number of certificates in a chain; 9330 now it really counts the depth. 9331 [Bodo Moeller] 9332 9333 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9334 instead of X509err, which often resulted in confusing error 9335 messages since the error codes are not globally unique 9336 (e.g. an alleged error in ssl3_accept when a certificate 9337 didn't match the private key). 9338 9339 *) New function SSL_CTX_set_session_id_context that allows to set a default 9340 value (so that you don't need SSL_set_session_id_context for each 9341 connection using the SSL_CTX). 9342 [Bodo Moeller] 9343 9344 *) OAEP decoding bug fix. 9345 [Ulf M�ller] 9346 9347 *) Support INSTALL_PREFIX for package builders, as proposed by 9348 David Harris. 9349 [Bodo Moeller] 9350 9351 *) New Configure options "threads" and "no-threads". For systems 9352 where the proper compiler options are known (currently Solaris 9353 and Linux), "threads" is the default. 9354 [Bodo Moeller] 9355 9356 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9357 [Bodo Moeller] 9358 9359 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9360 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9361 such as /usr/local/bin. 9362 [Bodo Moeller] 9363 9364 *) "make linux-shared" to build shared libraries. 9365 [Niels Poppe <niels@netbox.org>] 9366 9367 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9368 [Ulf M�ller] 9369 9370 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9371 extension adding in x509 utility. 9372 [Steve Henson] 9373 9374 *) Remove NOPROTO sections and error code comments. 9375 [Ulf M�ller] 9376 9377 *) Partial rewrite of the DEF file generator to now parse the ANSI 9378 prototypes. 9379 [Steve Henson] 9380 9381 *) New Configure options --prefix=DIR and --openssldir=DIR. 9382 [Ulf M�ller] 9383 9384 *) Complete rewrite of the error code script(s). It is all now handled 9385 by one script at the top level which handles error code gathering, 9386 header rewriting and C source file generation. It should be much better 9387 than the old method: it now uses a modified version of Ulf's parser to 9388 read the ANSI prototypes in all header files (thus the old K&R definitions 9389 aren't needed for error creation any more) and do a better job of 9390 translating function codes into names. The old 'ASN1 error code imbedded 9391 in a comment' is no longer necessary and it doesn't use .err files which 9392 have now been deleted. Also the error code call doesn't have to appear all 9393 on one line (which resulted in some large lines...). 9394 [Steve Henson] 9395 9396 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9397 [Bodo Moeller] 9398 9399 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9400 0 (which usually indicates a closed connection), but continue reading. 9401 [Bodo Moeller] 9402 9403 *) Fix some race conditions. 9404 [Bodo Moeller] 9405 9406 *) Add support for CRL distribution points extension. Add Certificate 9407 Policies and CRL distribution points documentation. 9408 [Steve Henson] 9409 9410 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9411 [Ulf M�ller] 9412 9413 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9414 8 of keying material. Merlin has also confirmed interop with this fix 9415 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9416 [Merlin Hughes <merlin@baltimore.ie>] 9417 9418 *) Fix lots of warnings. 9419 [Richard Levitte <levitte@stacken.kth.se>] 9420 9421 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9422 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9423 [Richard Levitte <levitte@stacken.kth.se>] 9424 9425 *) Fix problems with sizeof(long) == 8. 9426 [Andy Polyakov <appro@fy.chalmers.se>] 9427 9428 *) Change functions to ANSI C. 9429 [Ulf M�ller] 9430 9431 *) Fix typos in error codes. 9432 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9433 9434 *) Remove defunct assembler files from Configure. 9435 [Ulf M�ller] 9436 9437 *) SPARC v8 assembler BIGNUM implementation. 9438 [Andy Polyakov <appro@fy.chalmers.se>] 9439 9440 *) Support for Certificate Policies extension: both print and set. 9441 Various additions to support the r2i method this uses. 9442 [Steve Henson] 9443 9444 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9445 return a const string when you are expecting an allocated buffer. 9446 [Ben Laurie] 9447 9448 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9449 types DirectoryString and DisplayText. 9450 [Steve Henson] 9451 9452 *) Add code to allow r2i extensions to access the configuration database, 9453 add an LHASH database driver and add several ctx helper functions. 9454 [Steve Henson] 9455 9456 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9457 fail when they extended the size of a BIGNUM. 9458 [Steve Henson] 9459 9460 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9461 support typesafe stack. 9462 [Steve Henson] 9463 9464 *) Fix typo in SSL_[gs]et_options(). 9465 [Nils Frostberg <nils@medcom.se>] 9466 9467 *) Delete various functions and files that belonged to the (now obsolete) 9468 old X509V3 handling code. 9469 [Steve Henson] 9470 9471 *) New Configure option "rsaref". 9472 [Ulf M�ller] 9473 9474 *) Don't auto-generate pem.h. 9475 [Bodo Moeller] 9476 9477 *) Introduce type-safe ASN.1 SETs. 9478 [Ben Laurie] 9479 9480 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9481 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9482 9483 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9484 that links with OpenSSL (well at least cause lots of warnings), but fear 9485 not: the conversion is trivial, and it eliminates loads of evil casts. A 9486 few STACKed things have been converted already. Feel free to convert more. 9487 In the fullness of time, I'll do away with the STACK type altogether. 9488 [Ben Laurie] 9489 9490 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9491 specified in <certfile> by updating the entry in the index.txt file. 9492 This way one no longer has to edit the index.txt file manually for 9493 revoking a certificate. The -revoke option does the gory details now. 9494 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9495 9496 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9497 `-text' option at all and this way the `-noout -text' combination was 9498 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9499 [Ralf S. Engelschall] 9500 9501 *) Make sure a corresponding plain text error message exists for the 9502 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9503 verify callback function determined that a certificate was revoked. 9504 [Ralf S. Engelschall] 9505 9506 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9507 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9508 all available cipers including rc5, which was forgotten until now. 9509 In order to let the testing shell script know which algorithms 9510 are available, a new (up to now undocumented) command 9511 "openssl list-cipher-commands" is used. 9512 [Bodo Moeller] 9513 9514 *) Bugfix: s_client occasionally would sleep in select() when 9515 it should have checked SSL_pending() first. 9516 [Bodo Moeller] 9517 9518 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9519 the raw DSA values prior to ASN.1 encoding. 9520 [Ulf M�ller] 9521 9522 *) Tweaks to Configure 9523 [Niels Poppe <niels@netbox.org>] 9524 9525 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9526 yet... 9527 [Steve Henson] 9528 9529 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9530 [Ulf M�ller] 9531 9532 *) New config option to avoid instructions that are illegal on the 80386. 9533 The default code is faster, but requires at least a 486. 9534 [Ulf M�ller] 9535 9536 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9537 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9538 same as SSL2_VERSION anyway. 9539 [Bodo Moeller] 9540 9541 *) New "-showcerts" option for s_client. 9542 [Bodo Moeller] 9543 9544 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9545 application. Various cleanups and fixes. 9546 [Steve Henson] 9547 9548 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9549 modify error routines to work internally. Add error codes and PBE init 9550 to library startup routines. 9551 [Steve Henson] 9552 9553 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9554 packing functions to asn1 and evp. Changed function names and error 9555 codes along the way. 9556 [Steve Henson] 9557 9558 *) PKCS12 integration: and so it begins... First of several patches to 9559 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9560 objects to objects.h 9561 [Steve Henson] 9562 9563 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9564 and display support for Thawte strong extranet extension. 9565 [Steve Henson] 9566 9567 *) Add LinuxPPC support. 9568 [Jeff Dubrule <igor@pobox.org>] 9569 9570 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9571 bn_div_words in alpha.s. 9572 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9573 9574 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9575 OAEP isn't supported when OpenSSL is built with RSAref. 9576 [Ulf Moeller <ulf@fitug.de>] 9577 9578 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9579 so they no longer are missing under -DNOPROTO. 9580 [Soren S. Jorvang <soren@t.dk>] 9581 9582 9583 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9584 9585 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9586 doesn't work when the session is reused. Coming soon! 9587 [Ben Laurie] 9588 9589 *) Fix a security hole, that allows sessions to be reused in the wrong 9590 context thus bypassing client cert protection! All software that uses 9591 client certs and session caches in multiple contexts NEEDS PATCHING to 9592 allow session reuse! A fuller solution is in the works. 9593 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9594 9595 *) Some more source tree cleanups (removed obsolete files 9596 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9597 permission on "config" script to be executable) and a fix for the INSTALL 9598 document. 9599 [Ulf Moeller <ulf@fitug.de>] 9600 9601 *) Remove some legacy and erroneous uses of malloc, free instead of 9602 Malloc, Free. 9603 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9604 9605 *) Make rsa_oaep_test return non-zero on error. 9606 [Ulf Moeller <ulf@fitug.de>] 9607 9608 *) Add support for native Solaris shared libraries. Configure 9609 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9610 if someone would make that last step automatic. 9611 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9612 9613 *) ctx_size was not built with the right compiler during "make links". Fixed. 9614 [Ben Laurie] 9615 9616 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9617 except NULL ciphers". This means the default cipher list will no longer 9618 enable NULL ciphers. They need to be specifically enabled e.g. with 9619 the string "DEFAULT:eNULL". 9620 [Steve Henson] 9621 9622 *) Fix to RSA private encryption routines: if p < q then it would 9623 occasionally produce an invalid result. This will only happen with 9624 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9625 [Steve Henson] 9626 9627 *) Be less restrictive and allow also `perl util/perlpath.pl 9628 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9629 because this way one can also use an interpreter named `perl5' (which is 9630 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9631 installed as `perl'). 9632 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9633 9634 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9635 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9636 9637 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9638 advapi32.lib to Win32 build and change the pem test comparision 9639 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9640 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9641 and crypto/des/ede_cbcm_enc.c. 9642 [Steve Henson] 9643 9644 *) DES quad checksum was broken on big-endian architectures. Fixed. 9645 [Ben Laurie] 9646 9647 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9648 Win32 test batch file so it (might) work again. The Win32 test batch file 9649 is horrible: I feel ill.... 9650 [Steve Henson] 9651 9652 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9653 in e_os.h. Audit of header files to check ANSI and non ANSI 9654 sections: 10 functions were absent from non ANSI section and not exported 9655 from Windows DLLs. Fixed up libeay.num for new functions. 9656 [Steve Henson] 9657 9658 *) Make `openssl version' output lines consistent. 9659 [Ralf S. Engelschall] 9660 9661 *) Fix Win32 symbol export lists for BIO functions: Added 9662 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9663 to ms/libeay{16,32}.def. 9664 [Ralf S. Engelschall] 9665 9666 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9667 fine under Unix and passes some trivial tests I've now added. But the 9668 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9669 added to make sure no one expects that this stuff really works in the 9670 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9671 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9672 openssl_bio.xs. 9673 [Ralf S. Engelschall] 9674 9675 *) Fix the generation of two part addresses in perl. 9676 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9677 9678 *) Add config entry for Linux on MIPS. 9679 [John Tobey <jtobey@channel1.com>] 9680 9681 *) Make links whenever Configure is run, unless we are on Windoze. 9682 [Ben Laurie] 9683 9684 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9685 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9686 in CRLs. 9687 [Steve Henson] 9688 9689 *) Add a useful kludge to allow package maintainers to specify compiler and 9690 other platforms details on the command line without having to patch the 9691 Configure script everytime: One now can use ``perl Configure 9692 <id>:<details>'', i.e. platform ids are allowed to have details appended 9693 to them (seperated by colons). This is treated as there would be a static 9694 pre-configured entry in Configure's %table under key <id> with value 9695 <details> and ``perl Configure <id>'' is called. So, when you want to 9696 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9697 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9698 now, which overrides the FreeBSD-elf entry on-the-fly. 9699 [Ralf S. Engelschall] 9700 9701 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9702 [Ben Laurie] 9703 9704 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9705 on the `perl Configure ...' command line. This way one can compile 9706 OpenSSL libraries with Position Independent Code (PIC) which is needed 9707 for linking it into DSOs. 9708 [Ralf S. Engelschall] 9709 9710 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9711 Fixed. 9712 [Ben Laurie] 9713 9714 *) Cleaned up the LICENSE document: The official contact for any license 9715 questions now is the OpenSSL core team under openssl-core@openssl.org. 9716 And add a paragraph about the dual-license situation to make sure people 9717 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9718 to the OpenSSL toolkit. 9719 [Ralf S. Engelschall] 9720 9721 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9722 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9723 Additonally cleaned up the `make links' target: Remove unnecessary 9724 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9725 to speed processing and no longer clutter the display with confusing 9726 stuff. Instead only the actually done links are displayed. 9727 [Ralf S. Engelschall] 9728 9729 *) Permit null encryption ciphersuites, used for authentication only. It used 9730 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9731 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9732 encryption. 9733 [Ben Laurie] 9734 9735 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9736 signed attributes when verifying signatures (this would break them), 9737 the detached data encoding was wrong and public keys obtained using 9738 X509_get_pubkey() weren't freed. 9739 [Steve Henson] 9740 9741 *) Add text documentation for the BUFFER functions. Also added a work around 9742 to a Win95 console bug. This was triggered by the password read stuff: the 9743 last character typed gets carried over to the next fread(). If you were 9744 generating a new cert request using 'req' for example then the last 9745 character of the passphrase would be CR which would then enter the first 9746 field as blank. 9747 [Steve Henson] 9748 9749 *) Added the new `Includes OpenSSL Cryptography Software' button as 9750 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9751 button and can be used by applications based on OpenSSL to show the 9752 relationship to the OpenSSL project. 9753 [Ralf S. Engelschall] 9754 9755 *) Remove confusing variables in function signatures in files 9756 ssl/ssl_lib.c and ssl/ssl.h. 9757 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9758 9759 *) Don't install bss_file.c under PREFIX/include/ 9760 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9761 9762 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9763 functions that return function pointers and has support for NT specific 9764 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9765 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9766 unsigned to signed types: this was killing the Win32 compile. 9767 [Steve Henson] 9768 9769 *) Add new certificate file to stack functions, 9770 SSL_add_dir_cert_subjects_to_stack() and 9771 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9772 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9773 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9774 This means that Apache-SSL and similar packages don't have to mess around 9775 to add as many CAs as they want to the preferred list. 9776 [Ben Laurie] 9777 9778 *) Experiment with doxygen documentation. Currently only partially applied to 9779 ssl/ssl_lib.c. 9780 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9781 openssl.doxy as the configuration file. 9782 [Ben Laurie] 9783 9784 *) Get rid of remaining C++-style comments which strict C compilers hate. 9785 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9786 9787 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9788 compiled in by default: it has problems with large keys. 9789 [Steve Henson] 9790 9791 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9792 DH private keys and/or callback functions which directly correspond to 9793 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9794 is needed for applications which have to configure certificates on a 9795 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9796 (e.g. s_server). 9797 For the RSA certificate situation is makes no difference, but 9798 for the DSA certificate situation this fixes the "no shared cipher" 9799 problem where the OpenSSL cipher selection procedure failed because the 9800 temporary keys were not overtaken from the context and the API provided 9801 no way to reconfigure them. 9802 The new functions now let applications reconfigure the stuff and they 9803 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9804 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9805 non-public-API function ssl_cert_instantiate() is used as a helper 9806 function and also to reduce code redundancy inside ssl_rsa.c. 9807 [Ralf S. Engelschall] 9808 9809 *) Move s_server -dcert and -dkey options out of the undocumented feature 9810 area because they are useful for the DSA situation and should be 9811 recognized by the users. 9812 [Ralf S. Engelschall] 9813 9814 *) Fix the cipher decision scheme for export ciphers: the export bits are 9815 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9816 SSL_EXP_MASK. So, the original variable has to be used instead of the 9817 already masked variable. 9818 [Richard Levitte <levitte@stacken.kth.se>] 9819 9820 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9821 [Richard Levitte <levitte@stacken.kth.se>] 9822 9823 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9824 from `int' to `unsigned int' because it's a length and initialized by 9825 EVP_DigestFinal() which expects an `unsigned int *'. 9826 [Richard Levitte <levitte@stacken.kth.se>] 9827 9828 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9829 script. Instead use the usual Shell->Perl transition trick. 9830 [Ralf S. Engelschall] 9831 9832 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9833 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9834 -noout -modulus' as it's already the case for `openssl rsa -noout 9835 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9836 currently the public key is printed (a decision which was already done by 9837 `openssl dsa -modulus' in the past) which serves a similar purpose. 9838 Additionally the NO_RSA no longer completely removes the whole -modulus 9839 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9840 now, too. 9841 [Ralf S. Engelschall] 9842 9843 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9844 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9845 [Arne Ansper <arne@ats.cyber.ee>] 9846 9847 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9848 to be added. Now both 'req' and 'ca' can use new objects defined in the 9849 config file. 9850 [Steve Henson] 9851 9852 *) Add cool BIO that does syslog (or event log on NT). 9853 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9854 9855 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9856 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9857 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9858 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9859 [Ben Laurie] 9860 9861 *) Add preliminary config info for new extension code. 9862 [Steve Henson] 9863 9864 *) Make RSA_NO_PADDING really use no padding. 9865 [Ulf Moeller <ulf@fitug.de>] 9866 9867 *) Generate errors when private/public key check is done. 9868 [Ben Laurie] 9869 9870 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9871 for some CRL extensions and new objects added. 9872 [Steve Henson] 9873 9874 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9875 key usage extension and fuller support for authority key id. 9876 [Steve Henson] 9877 9878 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9879 padding method for RSA, which is recommended for new applications in PKCS 9880 #1 v2.0 (RFC 2437, October 1998). 9881 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9882 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9883 against Bleichbacher's attack on RSA. 9884 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9885 Ben Laurie] 9886 9887 *) Updates to the new SSL compression code 9888 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9889 9890 *) Fix so that the version number in the master secret, when passed 9891 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9892 (because the server will not accept higher), that the version number 9893 is 0x03,0x01, not 0x03,0x00 9894 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9895 9896 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9897 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9898 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9899 [Steve Henson] 9900 9901 *) Support for RAW extensions where an arbitrary extension can be 9902 created by including its DER encoding. See apps/openssl.cnf for 9903 an example. 9904 [Steve Henson] 9905 9906 *) Make sure latest Perl versions don't interpret some generated C array 9907 code as Perl array code in the crypto/err/err_genc.pl script. 9908 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9909 9910 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9911 not many people have the assembler. Various Win32 compilation fixes and 9912 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9913 build instructions. 9914 [Steve Henson] 9915 9916 *) Modify configure script 'Configure' to automatically create crypto/date.h 9917 file under Win32 and also build pem.h from pem.org. New script 9918 util/mkfiles.pl to create the MINFO file on environments that can't do a 9919 'make files': perl util/mkfiles.pl >MINFO should work. 9920 [Steve Henson] 9921 9922 *) Major rework of DES function declarations, in the pursuit of correctness 9923 and purity. As a result, many evil casts evaporated, and some weirdness, 9924 too. You may find this causes warnings in your code. Zapping your evil 9925 casts will probably fix them. Mostly. 9926 [Ben Laurie] 9927 9928 *) Fix for a typo in asn1.h. Bug fix to object creation script 9929 obj_dat.pl. It considered a zero in an object definition to mean 9930 "end of object": none of the objects in objects.h have any zeros 9931 so it wasn't spotted. 9932 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9933 9934 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9935 Masking (CBCM). In the absence of test vectors, the best I have been able 9936 to do is check that the decrypt undoes the encrypt, so far. Send me test 9937 vectors if you have them. 9938 [Ben Laurie] 9939 9940 *) Correct calculation of key length for export ciphers (too much space was 9941 allocated for null ciphers). This has not been tested! 9942 [Ben Laurie] 9943 9944 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9945 message is now correct (it understands "crypto" and "ssl" on its 9946 command line). There is also now an "update" option. This will update 9947 the util/ssleay.num and util/libeay.num files with any new functions. 9948 If you do a: 9949 perl util/mkdef.pl crypto ssl update 9950 it will update them. 9951 [Steve Henson] 9952 9953 *) Overhauled the Perl interface (perl/*): 9954 - ported BN stuff to OpenSSL's different BN library 9955 - made the perl/ source tree CVS-aware 9956 - renamed the package from SSLeay to OpenSSL (the files still contain 9957 their history because I've copied them in the repository) 9958 - removed obsolete files (the test scripts will be replaced 9959 by better Test::Harness variants in the future) 9960 [Ralf S. Engelschall] 9961 9962 *) First cut for a very conservative source tree cleanup: 9963 1. merge various obsolete readme texts into doc/ssleay.txt 9964 where we collect the old documents and readme texts. 9965 2. remove the first part of files where I'm already sure that we no 9966 longer need them because of three reasons: either they are just temporary 9967 files which were left by Eric or they are preserved original files where 9968 I've verified that the diff is also available in the CVS via "cvs diff 9969 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9970 the crypto/md/ stuff). 9971 [Ralf S. Engelschall] 9972 9973 *) More extension code. Incomplete support for subject and issuer alt 9974 name, issuer and authority key id. Change the i2v function parameters 9975 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9976 what that's for :-) Fix to ASN1 macro which messed up 9977 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9978 [Steve Henson] 9979 9980 *) Preliminary support for ENUMERATED type. This is largely copied from the 9981 INTEGER code. 9982 [Steve Henson] 9983 9984 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 9985 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9986 9987 *) Make sure `make rehash' target really finds the `openssl' program. 9988 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9989 9990 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 9991 like to hear about it if this slows down other processors. 9992 [Ben Laurie] 9993 9994 *) Add CygWin32 platform information to Configure script. 9995 [Alan Batie <batie@aahz.jf.intel.com>] 9996 9997 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 9998 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 9999 10000 *) New program nseq to manipulate netscape certificate sequences 10001 [Steve Henson] 10002 10003 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 10004 few typos. 10005 [Steve Henson] 10006 10007 *) Fixes to BN code. Previously the default was to define BN_RECURSION 10008 but the BN code had some problems that would cause failures when 10009 doing certificate verification and some other functions. 10010 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10011 10012 *) Add ASN1 and PEM code to support netscape certificate sequences. 10013 [Steve Henson] 10014 10015 *) Add ASN1 and PEM code to support netscape certificate sequences. 10016 [Steve Henson] 10017 10018 *) Add several PKIX and private extended key usage OIDs. 10019 [Steve Henson] 10020 10021 *) Modify the 'ca' program to handle the new extension code. Modify 10022 openssl.cnf for new extension format, add comments. 10023 [Steve Henson] 10024 10025 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 10026 and add a sample to openssl.cnf so req -x509 now adds appropriate 10027 CA extensions. 10028 [Steve Henson] 10029 10030 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 10031 error code, add initial support to X509_print() and x509 application. 10032 [Steve Henson] 10033 10034 *) Takes a deep breath and start addding X509 V3 extension support code. Add 10035 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 10036 stuff is currently isolated and isn't even compiled yet. 10037 [Steve Henson] 10038 10039 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 10040 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 10041 Removed the versions check from X509 routines when loading extensions: 10042 this allows certain broken certificates that don't set the version 10043 properly to be processed. 10044 [Steve Henson] 10045 10046 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 10047 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 10048 can still be regenerated with "make depend". 10049 [Ben Laurie] 10050 10051 *) Spelling mistake in C version of CAST-128. 10052 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 10053 10054 *) Changes to the error generation code. The perl script err-code.pl 10055 now reads in the old error codes and retains the old numbers, only 10056 adding new ones if necessary. It also only changes the .err files if new 10057 codes are added. The makefiles have been modified to only insert errors 10058 when needed (to avoid needlessly modifying header files). This is done 10059 by only inserting errors if the .err file is newer than the auto generated 10060 C file. To rebuild all the error codes from scratch (the old behaviour) 10061 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 10062 or delete all the .err files. 10063 [Steve Henson] 10064 10065 *) CAST-128 was incorrectly implemented for short keys. The C version has 10066 been fixed, but is untested. The assembler versions are also fixed, but 10067 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 10068 to regenerate it if needed. 10069 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 10070 Hagino <itojun@kame.net>] 10071 10072 *) File was opened incorrectly in randfile.c. 10073 [Ulf M�ller <ulf@fitug.de>] 10074 10075 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 10076 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 10077 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 10078 al: it's just almost always a UTCTime. Note this patch adds new error 10079 codes so do a "make errors" if there are problems. 10080 [Steve Henson] 10081 10082 *) Correct Linux 1 recognition in config. 10083 [Ulf M�ller <ulf@fitug.de>] 10084 10085 *) Remove pointless MD5 hash when using DSA keys in ca. 10086 [Anonymous <nobody@replay.com>] 10087 10088 *) Generate an error if given an empty string as a cert directory. Also 10089 generate an error if handed NULL (previously returned 0 to indicate an 10090 error, but didn't set one). 10091 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 10092 10093 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 10094 [Ben Laurie] 10095 10096 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 10097 parameters. This was causing a warning which killed off the Win32 compile. 10098 [Steve Henson] 10099 10100 *) Remove C++ style comments from crypto/bn/bn_local.h. 10101 [Neil Costigan <neil.costigan@celocom.com>] 10102 10103 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 10104 based on a text string, looking up short and long names and finally 10105 "dot" format. The "dot" format stuff didn't work. Added new function 10106 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 10107 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 10108 OID is not part of the table. 10109 [Steve Henson] 10110 10111 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 10112 X509_LOOKUP_by_alias(). 10113 [Ben Laurie] 10114 10115 *) Sort openssl functions by name. 10116 [Ben Laurie] 10117 10118 *) Get the gendsa program working (hopefully) and add it to app list. Remove 10119 encryption from sample DSA keys (in case anyone is interested the password 10120 was "1234"). 10121 [Steve Henson] 10122 10123 *) Make _all_ *_free functions accept a NULL pointer. 10124 [Frans Heymans <fheymans@isaserver.be>] 10125 10126 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 10127 NULL pointers. 10128 [Anonymous <nobody@replay.com>] 10129 10130 *) s_server should send the CAfile as acceptable CAs, not its own cert. 10131 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10132 10133 *) Don't blow it for numeric -newkey arguments to apps/req. 10134 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10135 10136 *) Temp key "for export" tests were wrong in s3_srvr.c. 10137 [Anonymous <nobody@replay.com>] 10138 10139 *) Add prototype for temp key callback functions 10140 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10141 [Ben Laurie] 10142 10143 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10144 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10145 [Steve Henson] 10146 10147 *) X509_name_add_entry() freed the wrong thing after an error. 10148 [Arne Ansper <arne@ats.cyber.ee>] 10149 10150 *) rsa_eay.c would attempt to free a NULL context. 10151 [Arne Ansper <arne@ats.cyber.ee>] 10152 10153 *) BIO_s_socket() had a broken should_retry() on Windoze. 10154 [Arne Ansper <arne@ats.cyber.ee>] 10155 10156 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10157 [Arne Ansper <arne@ats.cyber.ee>] 10158 10159 *) Make sure the already existing X509_STORE->depth variable is initialized 10160 in X509_STORE_new(), but document the fact that this variable is still 10161 unused in the certificate verification process. 10162 [Ralf S. Engelschall] 10163 10164 *) Fix the various library and apps files to free up pkeys obtained from 10165 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10166 [Steve Henson] 10167 10168 *) Fix reference counting in X509_PUBKEY_get(). This makes 10169 demos/maurice/example2.c work, amongst others, probably. 10170 [Steve Henson and Ben Laurie] 10171 10172 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10173 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10174 are no longer created. This way we have a single and consistent command 10175 line interface `openssl <command>', similar to `cvs <command>'. 10176 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10177 10178 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10179 BIT STRING wrapper always have zero unused bits. 10180 [Steve Henson] 10181 10182 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10183 [Steve Henson] 10184 10185 *) Make the top-level INSTALL documentation easier to understand. 10186 [Paul Sutton] 10187 10188 *) Makefiles updated to exit if an error occurs in a sub-directory 10189 make (including if user presses ^C) [Paul Sutton] 10190 10191 *) Make Montgomery context stuff explicit in RSA data structure. 10192 [Ben Laurie] 10193 10194 *) Fix build order of pem and err to allow for generated pem.h. 10195 [Ben Laurie] 10196 10197 *) Fix renumbering bug in X509_NAME_delete_entry(). 10198 [Ben Laurie] 10199 10200 *) Enhanced the err-ins.pl script so it makes the error library number 10201 global and can add a library name. This is needed for external ASN1 and 10202 other error libraries. 10203 [Steve Henson] 10204 10205 *) Fixed sk_insert which never worked properly. 10206 [Steve Henson] 10207 10208 *) Fix ASN1 macros so they can handle indefinite length construted 10209 EXPLICIT tags. Some non standard certificates use these: they can now 10210 be read in. 10211 [Steve Henson] 10212 10213 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10214 into a single doc/ssleay.txt bundle. This way the information is still 10215 preserved but no longer messes up this directory. Now it's new room for 10216 the new set of documenation files. 10217 [Ralf S. Engelschall] 10218 10219 *) SETs were incorrectly DER encoded. This was a major pain, because they 10220 shared code with SEQUENCEs, which aren't coded the same. This means that 10221 almost everything to do with SETs or SEQUENCEs has either changed name or 10222 number of arguments. 10223 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10224 10225 *) Fix test data to work with the above. 10226 [Ben Laurie] 10227 10228 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10229 was already fixed by Eric for 0.9.1 it seems. 10230 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10231 10232 *) Autodetect FreeBSD3. 10233 [Ben Laurie] 10234 10235 *) Fix various bugs in Configure. This affects the following platforms: 10236 nextstep 10237 ncr-scde 10238 unixware-2.0 10239 unixware-2.0-pentium 10240 sco5-cc. 10241 [Ben Laurie] 10242 10243 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10244 before they are needed. 10245 [Ben Laurie] 10246 10247 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10248 [Ben Laurie] 10249 10250 10251 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10252 10253 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10254 changed SSLeay to OpenSSL in version strings. 10255 [Ralf S. Engelschall] 10256 10257 *) Some fixups to the top-level documents. 10258 [Paul Sutton] 10259 10260 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10261 because the symlink to include/ was missing. 10262 [Ralf S. Engelschall] 10263 10264 *) Incorporated the popular no-RSA/DSA-only patches 10265 which allow to compile a RSA-free SSLeay. 10266 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10267 10268 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10269 when "ssleay" is still not found. 10270 [Ralf S. Engelschall] 10271 10272 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10273 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10274 10275 *) Updated the README file. 10276 [Ralf S. Engelschall] 10277 10278 *) Added various .cvsignore files in the CVS repository subdirs 10279 to make a "cvs update" really silent. 10280 [Ralf S. Engelschall] 10281 10282 *) Recompiled the error-definition header files and added 10283 missing symbols to the Win32 linker tables. 10284 [Ralf S. Engelschall] 10285 10286 *) Cleaned up the top-level documents; 10287 o new files: CHANGES and LICENSE 10288 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10289 o merged COPYRIGHT into LICENSE 10290 o removed obsolete TODO file 10291 o renamed MICROSOFT to INSTALL.W32 10292 [Ralf S. Engelschall] 10293 10294 *) Removed dummy files from the 0.9.1b source tree: 10295 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10296 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10297 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10298 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10299 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10300 [Ralf S. Engelschall] 10301 10302 *) Added various platform portability fixes. 10303 [Mark J. Cox] 10304 10305 *) The Genesis of the OpenSSL rpject: 10306 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10307 Young and Tim J. Hudson created while they were working for C2Net until 10308 summer 1998. 10309 [The OpenSSL Project] 10310 10311 10312 Changes between 0.9.0b and 0.9.1b [not released] 10313 10314 *) Updated a few CA certificates under certs/ 10315 [Eric A. Young] 10316 10317 *) Changed some BIGNUM api stuff. 10318 [Eric A. Young] 10319 10320 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10321 DGUX x86, Linux Alpha, etc. 10322 [Eric A. Young] 10323 10324 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10325 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10326 available). 10327 [Eric A. Young] 10328 10329 *) Add -strparse option to asn1pars program which parses nested 10330 binary structures 10331 [Dr Stephen Henson <shenson@bigfoot.com>] 10332 10333 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10334 [Eric A. Young] 10335 10336 *) DSA fix for "ca" program. 10337 [Eric A. Young] 10338 10339 *) Added "-genkey" option to "dsaparam" program. 10340 [Eric A. Young] 10341 10342 *) Added RIPE MD160 (rmd160) message digest. 10343 [Eric A. Young] 10344 10345 *) Added -a (all) option to "ssleay version" command. 10346 [Eric A. Young] 10347 10348 *) Added PLATFORM define which is the id given to Configure. 10349 [Eric A. Young] 10350 10351 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10352 [Eric A. Young] 10353 10354 *) Extended the ASN.1 parser routines. 10355 [Eric A. Young] 10356 10357 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10358 [Eric A. Young] 10359 10360 *) Added a BN_CTX to the BN library. 10361 [Eric A. Young] 10362 10363 *) Fixed the weak key values in DES library 10364 [Eric A. Young] 10365 10366 *) Changed API in EVP library for cipher aliases. 10367 [Eric A. Young] 10368 10369 *) Added support for RC2/64bit cipher. 10370 [Eric A. Young] 10371 10372 *) Converted the lhash library to the crypto/mem.c functions. 10373 [Eric A. Young] 10374 10375 *) Added more recognized ASN.1 object ids. 10376 [Eric A. Young] 10377 10378 *) Added more RSA padding checks for SSL/TLS. 10379 [Eric A. Young] 10380 10381 *) Added BIO proxy/filter functionality. 10382 [Eric A. Young] 10383 10384 *) Added extra_certs to SSL_CTX which can be used 10385 send extra CA certificates to the client in the CA cert chain sending 10386 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10387 [Eric A. Young] 10388 10389 *) Now Fortezza is denied in the authentication phase because 10390 this is key exchange mechanism is not supported by SSLeay at all. 10391 [Eric A. Young] 10392 10393 *) Additional PKCS1 checks. 10394 [Eric A. Young] 10395 10396 *) Support the string "TLSv1" for all TLS v1 ciphers. 10397 [Eric A. Young] 10398 10399 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10400 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10401 [Eric A. Young] 10402 10403 *) Fixed a few memory leaks. 10404 [Eric A. Young] 10405 10406 *) Fixed various code and comment typos. 10407 [Eric A. Young] 10408 10409 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10410 bytes sent in the client random. 10411 [Edward Bishop <ebishop@spyglass.com>] 10412 10413