CHANGES revision 264331
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 6 7 *) A missing bounds check in the handling of the TLS heartbeat extension 8 can be used to reveal up to 64k of memory to a connected client or 9 server. 10 11 Thanks for Neel Mehta of Google Security for discovering this bug and to 12 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 13 preparing the fix (CVE-2014-0160) 14 [Adam Langley, Bodo Moeller] 15 16 *) Fix for the attack described in the paper "Recovering OpenSSL 17 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 18 by Yuval Yarom and Naomi Benger. Details can be obtained from: 19 http://eprint.iacr.org/2014/140 20 21 Thanks to Yuval Yarom and Naomi Benger for discovering this 22 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 23 [Yuval Yarom and Naomi Benger] 24 25 *) TLS pad extension: draft-agl-tls-padding-03 26 27 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 28 TLS client Hello record length value would otherwise be > 255 and 29 less that 512 pad with a dummy extension containing zeroes so it 30 is at least 512 bytes long. 31 32 [Adam Langley, Steve Henson] 33 34 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 35 36 *) Fix for TLS record tampering bug. A carefully crafted invalid 37 handshake could crash OpenSSL with a NULL pointer exception. 38 Thanks to Anton Johansson for reporting this issues. 39 (CVE-2013-4353) 40 41 *) Keep original DTLS digest and encryption contexts in retransmission 42 structures so we can use the previous session parameters if they need 43 to be resent. (CVE-2013-6450) 44 [Steve Henson] 45 46 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 47 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 48 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 49 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 50 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 51 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 52 [Rob Stradling, Adam Langley] 53 54 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 55 56 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 57 supporting platforms or when small records were transferred. 58 [Andy Polyakov, Steve Henson] 59 60 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 61 62 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 63 64 This addresses the flaw in CBC record processing discovered by 65 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 66 at: http://www.isg.rhul.ac.uk/tls/ 67 68 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 69 Security Group at Royal Holloway, University of London 70 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 71 Emilia K�sper for the initial patch. 72 (CVE-2013-0169) 73 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 74 75 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 76 ciphersuites which can be exploited in a denial of service attack. 77 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 78 and detecting this bug and to Wolfgang Ettlinger 79 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 80 (CVE-2012-2686) 81 [Adam Langley] 82 83 *) Return an error when checking OCSP signatures when key is NULL. 84 This fixes a DoS attack. (CVE-2013-0166) 85 [Steve Henson] 86 87 *) Make openssl verify return errors. 88 [Chris Palmer <palmer@google.com> and Ben Laurie] 89 90 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 91 the right response is stapled. Also change SSL_get_certificate() 92 so it returns the certificate actually sent. 93 See http://rt.openssl.org/Ticket/Display.html?id=2836. 94 [Rob Stradling <rob.stradling@comodo.com>] 95 96 *) Fix possible deadlock when decoding public keys. 97 [Steve Henson] 98 99 *) Don't use TLS 1.0 record version number in initial client hello 100 if renegotiating. 101 [Steve Henson] 102 103 Changes between 1.0.1b and 1.0.1c [10 May 2012] 104 105 *) Sanity check record length before skipping explicit IV in TLS 106 1.2, 1.1 and DTLS to fix DoS attack. 107 108 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 109 fuzzing as a service testing platform. 110 (CVE-2012-2333) 111 [Steve Henson] 112 113 *) Initialise tkeylen properly when encrypting CMS messages. 114 Thanks to Solar Designer of Openwall for reporting this issue. 115 [Steve Henson] 116 117 *) In FIPS mode don't try to use composite ciphers as they are not 118 approved. 119 [Steve Henson] 120 121 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 122 123 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 124 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 125 mean any application compiled against OpenSSL 1.0.0 headers setting 126 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 127 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 128 0x10000000L Any application which was previously compiled against 129 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 130 will need to be recompiled as a result. Letting be results in 131 inability to disable specifically TLS 1.1 and in client context, 132 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 133 [Steve Henson] 134 135 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 136 disable just protocol X, but all protocols above X *if* there are 137 protocols *below* X still enabled. In more practical terms it means 138 that if application wants to disable TLS1.0 in favor of TLS1.1 and 139 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 140 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 141 client side. 142 [Andy Polyakov] 143 144 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 145 146 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 147 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 148 in CRYPTO_realloc_clean. 149 150 Thanks to Tavis Ormandy, Google Security Team, for discovering this 151 issue and to Adam Langley <agl@chromium.org> for fixing it. 152 (CVE-2012-2110) 153 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 154 155 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 156 [Adam Langley] 157 158 *) Workarounds for some broken servers that "hang" if a client hello 159 record length exceeds 255 bytes. 160 161 1. Do not use record version number > TLS 1.0 in initial client 162 hello: some (but not all) hanging servers will now work. 163 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 164 the number of ciphers sent in the client hello. This should be 165 set to an even number, such as 50, for example by passing: 166 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 167 Most broken servers should now work. 168 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 169 TLS 1.2 client support entirely. 170 [Steve Henson] 171 172 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 173 [Andy Polyakov] 174 175 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 176 177 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 178 STRING form instead of a DigestInfo. 179 [Steve Henson] 180 181 *) The format used for MDC2 RSA signatures is inconsistent between EVP 182 and the RSA_sign/RSA_verify functions. This was made more apparent when 183 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 184 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 185 the correct format in RSA_verify so both forms transparently work. 186 [Steve Henson] 187 188 *) Some servers which support TLS 1.0 can choke if we initially indicate 189 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 190 encrypted premaster secret. As a workaround use the maximum pemitted 191 client version in client hello, this should keep such servers happy 192 and still work with previous versions of OpenSSL. 193 [Steve Henson] 194 195 *) Add support for TLS/DTLS heartbeats. 196 [Robin Seggelmann <seggelmann@fh-muenster.de>] 197 198 *) Add support for SCTP. 199 [Robin Seggelmann <seggelmann@fh-muenster.de>] 200 201 *) Improved PRNG seeding for VOS. 202 [Paul Green <Paul.Green@stratus.com>] 203 204 *) Extensive assembler packs updates, most notably: 205 206 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 207 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 208 - x86_64: bit-sliced AES implementation; 209 - ARM: NEON support, contemporary platforms optimizations; 210 - s390x: z196 support; 211 - *: GHASH and GF(2^m) multiplication implementations; 212 213 [Andy Polyakov] 214 215 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 216 (removal of unnecessary code) 217 [Peter Sylvester <peter.sylvester@edelweb.fr>] 218 219 *) Add TLS key material exporter from RFC 5705. 220 [Eric Rescorla] 221 222 *) Add DTLS-SRTP negotiation from RFC 5764. 223 [Eric Rescorla] 224 225 *) Add Next Protocol Negotiation, 226 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 227 disabled with a no-npn flag to config or Configure. Code donated 228 by Google. 229 [Adam Langley <agl@google.com> and Ben Laurie] 230 231 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 232 NIST-P256, NIST-P521, with constant-time single point multiplication on 233 typical inputs. Compiler support for the nonstandard type __uint128_t is 234 required to use this (present in gcc 4.4 and later, for 64-bit builds). 235 Code made available under Apache License version 2.0. 236 237 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 238 line to include this in your build of OpenSSL, and run "make depend" (or 239 "make update"). This enables the following EC_METHODs: 240 241 EC_GFp_nistp224_method() 242 EC_GFp_nistp256_method() 243 EC_GFp_nistp521_method() 244 245 EC_GROUP_new_by_curve_name() will automatically use these (while 246 EC_GROUP_new_curve_GFp() currently prefers the more flexible 247 implementations). 248 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 249 250 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 251 all platforms. Move ssize_t definition from e_os.h to the public 252 header file e_os2.h as it now appears in public header file cms.h 253 [Steve Henson] 254 255 *) New -sigopt option to the ca, req and x509 utilities. Additional 256 signature parameters can be passed using this option and in 257 particular PSS. 258 [Steve Henson] 259 260 *) Add RSA PSS signing function. This will generate and set the 261 appropriate AlgorithmIdentifiers for PSS based on those in the 262 corresponding EVP_MD_CTX structure. No application support yet. 263 [Steve Henson] 264 265 *) Support for companion algorithm specific ASN1 signing routines. 266 New function ASN1_item_sign_ctx() signs a pre-initialised 267 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 268 the appropriate parameters. 269 [Steve Henson] 270 271 *) Add new algorithm specific ASN1 verification initialisation function 272 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 273 handling will be the same no matter what EVP_PKEY_METHOD is used. 274 Add a PSS handler to support verification of PSS signatures: checked 275 against a number of sample certificates. 276 [Steve Henson] 277 278 *) Add signature printing for PSS. Add PSS OIDs. 279 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 280 281 *) Add algorithm specific signature printing. An individual ASN1 method 282 can now print out signatures instead of the standard hex dump. 283 284 More complex signatures (e.g. PSS) can print out more meaningful 285 information. Include DSA version that prints out the signature 286 parameters r, s. 287 [Steve Henson] 288 289 *) Password based recipient info support for CMS library: implementing 290 RFC3211. 291 [Steve Henson] 292 293 *) Split password based encryption into PBES2 and PBKDF2 functions. This 294 neatly separates the code into cipher and PBE sections and is required 295 for some algorithms that split PBES2 into separate pieces (such as 296 password based CMS). 297 [Steve Henson] 298 299 *) Session-handling fixes: 300 - Fix handling of connections that are resuming with a session ID, 301 but also support Session Tickets. 302 - Fix a bug that suppressed issuing of a new ticket if the client 303 presented a ticket with an expired session. 304 - Try to set the ticket lifetime hint to something reasonable. 305 - Make tickets shorter by excluding irrelevant information. 306 - On the client side, don't ignore renewed tickets. 307 [Adam Langley, Bodo Moeller (Google)] 308 309 *) Fix PSK session representation. 310 [Bodo Moeller] 311 312 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 313 314 This work was sponsored by Intel. 315 [Andy Polyakov] 316 317 *) Add GCM support to TLS library. Some custom code is needed to split 318 the IV between the fixed (from PRF) and explicit (from TLS record) 319 portions. This adds all GCM ciphersuites supported by RFC5288 and 320 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 321 add a special AESGCM string for GCM only. 322 [Steve Henson] 323 324 *) Expand range of ctrls for AES GCM. Permit setting invocation 325 field on decrypt and retrieval of invocation field only on encrypt. 326 [Steve Henson] 327 328 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 329 As required by RFC5289 these ciphersuites cannot be used if for 330 versions of TLS earlier than 1.2. 331 [Steve Henson] 332 333 *) For FIPS capable OpenSSL interpret a NULL default public key method 334 as unset and return the appopriate default but do *not* set the default. 335 This means we can return the appopriate method in applications that 336 swicth between FIPS and non-FIPS modes. 337 [Steve Henson] 338 339 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 340 ENGINE is used then we cannot handle that in the FIPS module so we 341 keep original code iff non-FIPS operations are allowed. 342 [Steve Henson] 343 344 *) Add -attime option to openssl utilities. 345 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 346 347 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 348 [Steve Henson] 349 350 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 351 FIPS EC methods unconditionally for now. 352 [Steve Henson] 353 354 *) New build option no-ec2m to disable characteristic 2 code. 355 [Steve Henson] 356 357 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 358 all cases can be covered as some introduce binary incompatibilities. 359 [Steve Henson] 360 361 *) Redirect RSA operations to FIPS module including keygen, 362 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 363 [Steve Henson] 364 365 *) Add similar low level API blocking to ciphers. 366 [Steve Henson] 367 368 *) Low level digest APIs are not approved in FIPS mode: any attempt 369 to use these will cause a fatal error. Applications that *really* want 370 to use them can use the private_* version instead. 371 [Steve Henson] 372 373 *) Redirect cipher operations to FIPS module for FIPS builds. 374 [Steve Henson] 375 376 *) Redirect digest operations to FIPS module for FIPS builds. 377 [Steve Henson] 378 379 *) Update build system to add "fips" flag which will link in fipscanister.o 380 for static and shared library builds embedding a signature if needed. 381 [Steve Henson] 382 383 *) Output TLS supported curves in preference order instead of numerical 384 order. This is currently hardcoded for the highest order curves first. 385 This should be configurable so applications can judge speed vs strength. 386 [Steve Henson] 387 388 *) Add TLS v1.2 server support for client authentication. 389 [Steve Henson] 390 391 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 392 and enable MD5. 393 [Steve Henson] 394 395 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 396 FIPS modules versions. 397 [Steve Henson] 398 399 *) Add TLS v1.2 client side support for client authentication. Keep cache 400 of handshake records longer as we don't know the hash algorithm to use 401 until after the certificate request message is received. 402 [Steve Henson] 403 404 *) Initial TLS v1.2 client support. Add a default signature algorithms 405 extension including all the algorithms we support. Parse new signature 406 format in client key exchange. Relax some ECC signing restrictions for 407 TLS v1.2 as indicated in RFC5246. 408 [Steve Henson] 409 410 *) Add server support for TLS v1.2 signature algorithms extension. Switch 411 to new signature format when needed using client digest preference. 412 All server ciphersuites should now work correctly in TLS v1.2. No client 413 support yet and no support for client certificates. 414 [Steve Henson] 415 416 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 417 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 418 ciphersuites. At present only RSA key exchange ciphersuites work with 419 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 420 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 421 and version checking. 422 [Steve Henson] 423 424 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 425 with this defined it will not be affected by any changes to ssl internal 426 structures. Add several utility functions to allow openssl application 427 to work with OPENSSL_NO_SSL_INTERN defined. 428 [Steve Henson] 429 430 *) Add SRP support. 431 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 432 433 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 434 [Steve Henson] 435 436 *) Permit abbreviated handshakes when renegotiating using the function 437 SSL_renegotiate_abbreviated(). 438 [Robin Seggelmann <seggelmann@fh-muenster.de>] 439 440 *) Add call to ENGINE_register_all_complete() to 441 ENGINE_load_builtin_engines(), so some implementations get used 442 automatically instead of needing explicit application support. 443 [Steve Henson] 444 445 *) Add support for TLS key exporter as described in RFC5705. 446 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 447 448 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 449 a few changes are required: 450 451 Add SSL_OP_NO_TLSv1_1 flag. 452 Add TLSv1_1 methods. 453 Update version checking logic to handle version 1.1. 454 Add explicit IV handling (ported from DTLS code). 455 Add command line options to s_client/s_server. 456 [Steve Henson] 457 458 Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 459 460 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 461 462 This addresses the flaw in CBC record processing discovered by 463 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 464 at: http://www.isg.rhul.ac.uk/tls/ 465 466 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 467 Security Group at Royal Holloway, University of London 468 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 469 Emilia K�sper for the initial patch. 470 (CVE-2013-0169) 471 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 472 473 *) Return an error when checking OCSP signatures when key is NULL. 474 This fixes a DoS attack. (CVE-2013-0166) 475 [Steve Henson] 476 477 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 478 the right response is stapled. Also change SSL_get_certificate() 479 so it returns the certificate actually sent. 480 See http://rt.openssl.org/Ticket/Display.html?id=2836. 481 (This is a backport) 482 [Rob Stradling <rob.stradling@comodo.com>] 483 484 *) Fix possible deadlock when decoding public keys. 485 [Steve Henson] 486 487 Changes between 1.0.0i and 1.0.0j [10 May 2012] 488 489 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 490 OpenSSL 1.0.1.] 491 492 *) Sanity check record length before skipping explicit IV in DTLS 493 to fix DoS attack. 494 495 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 496 fuzzing as a service testing platform. 497 (CVE-2012-2333) 498 [Steve Henson] 499 500 *) Initialise tkeylen properly when encrypting CMS messages. 501 Thanks to Solar Designer of Openwall for reporting this issue. 502 [Steve Henson] 503 504 Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 505 506 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 507 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 508 in CRYPTO_realloc_clean. 509 510 Thanks to Tavis Ormandy, Google Security Team, for discovering this 511 issue and to Adam Langley <agl@chromium.org> for fixing it. 512 (CVE-2012-2110) 513 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 514 515 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 516 517 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 518 in CMS and PKCS7 code. When RSA decryption fails use a random key for 519 content decryption and always return the same error. Note: this attack 520 needs on average 2^20 messages so it only affects automated senders. The 521 old behaviour can be reenabled in the CMS code by setting the 522 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 523 an MMA defence is not necessary. 524 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 525 this issue. (CVE-2012-0884) 526 [Steve Henson] 527 528 *) Fix CVE-2011-4619: make sure we really are receiving a 529 client hello before rejecting multiple SGC restarts. Thanks to 530 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 531 [Steve Henson] 532 533 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 534 535 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 536 Thanks to Antonio Martin, Enterprise Secure Access Research and 537 Development, Cisco Systems, Inc. for discovering this bug and 538 preparing a fix. (CVE-2012-0050) 539 [Antonio Martin] 540 541 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 542 543 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 544 of the Vaudenay padding oracle attack on CBC mode encryption 545 which enables an efficient plaintext recovery attack against 546 the OpenSSL implementation of DTLS. Their attack exploits timing 547 differences arising during decryption processing. A research 548 paper describing this attack can be found at: 549 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 550 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 551 Security Group at Royal Holloway, University of London 552 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 553 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 554 for preparing the fix. (CVE-2011-4108) 555 [Robin Seggelmann, Michael Tuexen] 556 557 *) Clear bytes used for block padding of SSL 3.0 records. 558 (CVE-2011-4576) 559 [Adam Langley (Google)] 560 561 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 562 Kadianakis <desnacked@gmail.com> for discovering this issue and 563 Adam Langley for preparing the fix. (CVE-2011-4619) 564 [Adam Langley (Google)] 565 566 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 567 [Andrey Kulikov <amdeich@gmail.com>] 568 569 *) Prevent malformed RFC3779 data triggering an assertion failure. 570 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 571 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 572 [Rob Austein <sra@hactrn.net>] 573 574 *) Improved PRNG seeding for VOS. 575 [Paul Green <Paul.Green@stratus.com>] 576 577 *) Fix ssl_ciph.c set-up race. 578 [Adam Langley (Google)] 579 580 *) Fix spurious failures in ecdsatest.c. 581 [Emilia K�sper (Google)] 582 583 *) Fix the BIO_f_buffer() implementation (which was mixing different 584 interpretations of the '..._len' fields). 585 [Adam Langley (Google)] 586 587 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 588 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 589 threads won't reuse the same blinding coefficients. 590 591 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 592 lock to call BN_BLINDING_invert_ex, and avoids one use of 593 BN_BLINDING_update for each BN_BLINDING structure (previously, 594 the last update always remained unused). 595 [Emilia K�sper (Google)] 596 597 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 598 [Bob Buckholz (Google)] 599 600 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 601 602 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 603 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 604 [Kaspar Brand <ossl@velox.ch>] 605 606 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 607 for multi-threaded use of ECDH. (CVE-2011-3210) 608 [Adam Langley (Google)] 609 610 *) Fix x509_name_ex_d2i memory leak on bad inputs. 611 [Bodo Moeller] 612 613 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 614 signature public key algorithm by using OID xref utilities instead. 615 Before this you could only use some ECC ciphersuites with SHA1 only. 616 [Steve Henson] 617 618 *) Add protection against ECDSA timing attacks as mentioned in the paper 619 by Billy Bob Brumley and Nicola Tuveri, see: 620 621 http://eprint.iacr.org/2011/232.pdf 622 623 [Billy Bob Brumley and Nicola Tuveri] 624 625 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 626 627 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 628 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 629 630 *) Fix bug in string printing code: if *any* escaping is enabled we must 631 escape the escape character (backslash) or the resulting string is 632 ambiguous. 633 [Steve Henson] 634 635 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 636 637 *) Disable code workaround for ancient and obsolete Netscape browsers 638 and servers: an attacker can use it in a ciphersuite downgrade attack. 639 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 640 [Steve Henson] 641 642 *) Fixed J-PAKE implementation error, originally discovered by 643 Sebastien Martini, further info and confirmation from Stefan 644 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 645 [Ben Laurie] 646 647 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 648 649 *) Fix extension code to avoid race conditions which can result in a buffer 650 overrun vulnerability: resumed sessions must not be modified as they can 651 be shared by multiple threads. CVE-2010-3864 652 [Steve Henson] 653 654 *) Fix WIN32 build system to correctly link an ENGINE directory into 655 a DLL. 656 [Steve Henson] 657 658 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 659 660 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 661 (CVE-2010-1633) 662 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 663 664 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 665 666 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 667 context. The operation can be customised via the ctrl mechanism in 668 case ENGINEs want to include additional functionality. 669 [Steve Henson] 670 671 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 672 [Steve Henson] 673 674 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 675 output hashes compatible with older versions of OpenSSL. 676 [Willy Weisz <weisz@vcpc.univie.ac.at>] 677 678 *) Fix compression algorithm handling: if resuming a session use the 679 compression algorithm of the resumed session instead of determining 680 it from client hello again. Don't allow server to change algorithm. 681 [Steve Henson] 682 683 *) Add load_crls() function to apps tidying load_certs() too. Add option 684 to verify utility to allow additional CRLs to be included. 685 [Steve Henson] 686 687 *) Update OCSP request code to permit adding custom headers to the request: 688 some responders need this. 689 [Steve Henson] 690 691 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 692 correctly. 693 [Julia Lawall <julia@diku.dk>] 694 695 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 696 needlessly dereferenced structures, used obsolete functions and 697 didn't handle all updated verify codes correctly. 698 [Steve Henson] 699 700 *) Disable MD2 in the default configuration. 701 [Steve Henson] 702 703 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 704 indicate the initial BIO being pushed or popped. This makes it possible 705 to determine whether the BIO is the one explicitly called or as a result 706 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 707 it handles reference counts correctly and doesn't zero out the I/O bio 708 when it is not being explicitly popped. WARNING: applications which 709 included workarounds for the old buggy behaviour will need to be modified 710 or they could free up already freed BIOs. 711 [Steve Henson] 712 713 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 714 renaming to all platforms (within the 0.9.8 branch, this was 715 done conditionally on Netware platforms to avoid a name clash). 716 [Guenter <lists@gknw.net>] 717 718 *) Add ECDHE and PSK support to DTLS. 719 [Michael Tuexen <tuexen@fh-muenster.de>] 720 721 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 722 be used on C++. 723 [Steve Henson] 724 725 *) Add "missing" function EVP_MD_flags() (without this the only way to 726 retrieve a digest flags is by accessing the structure directly. Update 727 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 728 or cipher is registered as in the "from" argument. Print out all 729 registered digests in the dgst usage message instead of manually 730 attempting to work them out. 731 [Steve Henson] 732 733 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 734 this allows the use of compression and extensions. Change default cipher 735 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 736 by default unless an application cipher string requests it. 737 [Steve Henson] 738 739 *) Alter match criteria in PKCS12_parse(). It used to try to use local 740 key ids to find matching certificates and keys but some PKCS#12 files 741 don't follow the (somewhat unwritten) rules and this strategy fails. 742 Now just gather all certificates together and the first private key 743 then look for the first certificate that matches the key. 744 [Steve Henson] 745 746 *) Support use of registered digest and cipher names for dgst and cipher 747 commands instead of having to add each one as a special case. So now 748 you can do: 749 750 openssl sha256 foo 751 752 as well as: 753 754 openssl dgst -sha256 foo 755 756 and this works for ENGINE based algorithms too. 757 758 [Steve Henson] 759 760 *) Update Gost ENGINE to support parameter files. 761 [Victor B. Wagner <vitus@cryptocom.ru>] 762 763 *) Support GeneralizedTime in ca utility. 764 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 765 766 *) Enhance the hash format used for certificate directory links. The new 767 form uses the canonical encoding (meaning equivalent names will work 768 even if they aren't identical) and uses SHA1 instead of MD5. This form 769 is incompatible with the older format and as a result c_rehash should 770 be used to rebuild symbolic links. 771 [Steve Henson] 772 773 *) Make PKCS#8 the default write format for private keys, replacing the 774 traditional format. This form is standardised, more secure and doesn't 775 include an implicit MD5 dependency. 776 [Steve Henson] 777 778 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 779 committed to OpenSSL should pass this lot as a minimum. 780 [Steve Henson] 781 782 *) Add session ticket override functionality for use by EAP-FAST. 783 [Jouni Malinen <j@w1.fi>] 784 785 *) Modify HMAC functions to return a value. Since these can be implemented 786 in an ENGINE errors can occur. 787 [Steve Henson] 788 789 *) Type-checked OBJ_bsearch_ex. 790 [Ben Laurie] 791 792 *) Type-checked OBJ_bsearch. Also some constification necessitated 793 by type-checking. Still to come: TXT_DB, bsearch(?), 794 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 795 CONF_VALUE. 796 [Ben Laurie] 797 798 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 799 seconds to a tm structure directly, instead of going through OS 800 specific date routines. This avoids any issues with OS routines such 801 as the year 2038 bug. New *_adj() functions for ASN1 time structures 802 and X509_time_adj_ex() to cover the extended range. The existing 803 X509_time_adj() is still usable and will no longer have any date issues. 804 [Steve Henson] 805 806 *) Delta CRL support. New use deltas option which will attempt to locate 807 and search any appropriate delta CRLs available. 808 809 This work was sponsored by Google. 810 [Steve Henson] 811 812 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 813 code and add additional score elements. Validate alternate CRL paths 814 as part of the CRL checking and indicate a new error "CRL path validation 815 error" in this case. Applications wanting additional details can use 816 the verify callback and check the new "parent" field. If this is not 817 NULL CRL path validation is taking place. Existing applications wont 818 see this because it requires extended CRL support which is off by 819 default. 820 821 This work was sponsored by Google. 822 [Steve Henson] 823 824 *) Support for freshest CRL extension. 825 826 This work was sponsored by Google. 827 [Steve Henson] 828 829 *) Initial indirect CRL support. Currently only supported in the CRLs 830 passed directly and not via lookup. Process certificate issuer 831 CRL entry extension and lookup CRL entries by bother issuer name 832 and serial number. Check and process CRL issuer entry in IDP extension. 833 834 This work was sponsored by Google. 835 [Steve Henson] 836 837 *) Add support for distinct certificate and CRL paths. The CRL issuer 838 certificate is validated separately in this case. Only enabled if 839 an extended CRL support flag is set: this flag will enable additional 840 CRL functionality in future. 841 842 This work was sponsored by Google. 843 [Steve Henson] 844 845 *) Add support for policy mappings extension. 846 847 This work was sponsored by Google. 848 [Steve Henson] 849 850 *) Fixes to pathlength constraint, self issued certificate handling, 851 policy processing to align with RFC3280 and PKITS tests. 852 853 This work was sponsored by Google. 854 [Steve Henson] 855 856 *) Support for name constraints certificate extension. DN, email, DNS 857 and URI types are currently supported. 858 859 This work was sponsored by Google. 860 [Steve Henson] 861 862 *) To cater for systems that provide a pointer-based thread ID rather 863 than numeric, deprecate the current numeric thread ID mechanism and 864 replace it with a structure and associated callback type. This 865 mechanism allows a numeric "hash" to be extracted from a thread ID in 866 either case, and on platforms where pointers are larger than 'long', 867 mixing is done to help ensure the numeric 'hash' is usable even if it 868 can't be guaranteed unique. The default mechanism is to use "&errno" 869 as a pointer-based thread ID to distinguish between threads. 870 871 Applications that want to provide their own thread IDs should now use 872 CRYPTO_THREADID_set_callback() to register a callback that will call 873 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 874 875 Note that ERR_remove_state() is now deprecated, because it is tied 876 to the assumption that thread IDs are numeric. ERR_remove_state(0) 877 to free the current thread's error state should be replaced by 878 ERR_remove_thread_state(NULL). 879 880 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 881 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 882 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 883 application was previously providing a numeric thread callback that 884 was inappropriate for distinguishing threads, then uniqueness might 885 have been obtained with &errno that happened immediately in the 886 intermediate development versions of OpenSSL; this is no longer the 887 case, the numeric thread callback will now override the automatic use 888 of &errno.) 889 [Geoff Thorpe, with help from Bodo Moeller] 890 891 *) Initial support for different CRL issuing certificates. This covers a 892 simple case where the self issued certificates in the chain exist and 893 the real CRL issuer is higher in the existing chain. 894 895 This work was sponsored by Google. 896 [Steve Henson] 897 898 *) Removed effectively defunct crypto/store from the build. 899 [Ben Laurie] 900 901 *) Revamp of STACK to provide stronger type-checking. Still to come: 902 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 903 ASN1_STRING, CONF_VALUE. 904 [Ben Laurie] 905 906 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 907 RAM on SSL connections. This option can save about 34k per idle SSL. 908 [Nick Mathewson] 909 910 *) Revamp of LHASH to provide stronger type-checking. Still to come: 911 STACK, TXT_DB, bsearch, qsort. 912 [Ben Laurie] 913 914 *) Initial support for Cryptographic Message Syntax (aka CMS) based 915 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 916 support for data, signedData, compressedData, digestedData and 917 encryptedData, envelopedData types included. Scripts to check against 918 RFC4134 examples draft and interop and consistency checks of many 919 content types and variants. 920 [Steve Henson] 921 922 *) Add options to enc utility to support use of zlib compression BIO. 923 [Steve Henson] 924 925 *) Extend mk1mf to support importing of options and assembly language 926 files from Configure script, currently only included in VC-WIN32. 927 The assembly language rules can now optionally generate the source 928 files from the associated perl scripts. 929 [Steve Henson] 930 931 *) Implement remaining functionality needed to support GOST ciphersuites. 932 Interop testing has been performed using CryptoPro implementations. 933 [Victor B. Wagner <vitus@cryptocom.ru>] 934 935 *) s390x assembler pack. 936 [Andy Polyakov] 937 938 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 939 "family." 940 [Andy Polyakov] 941 942 *) Implement Opaque PRF Input TLS extension as specified in 943 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 944 official specification yet and no extension type assignment by 945 IANA exists, this extension (for now) will have to be explicitly 946 enabled when building OpenSSL by providing the extension number 947 to use. For example, specify an option 948 949 -DTLSEXT_TYPE_opaque_prf_input=0x9527 950 951 to the "config" or "Configure" script to enable the extension, 952 assuming extension number 0x9527 (which is a completely arbitrary 953 and unofficial assignment based on the MD5 hash of the Internet 954 Draft). Note that by doing so, you potentially lose 955 interoperability with other TLS implementations since these might 956 be using the same extension number for other purposes. 957 958 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 959 opaque PRF input value to use in the handshake. This will create 960 an interal copy of the length-'len' string at 'src', and will 961 return non-zero for success. 962 963 To get more control and flexibility, provide a callback function 964 by using 965 966 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 967 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 968 969 where 970 971 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 972 void *arg; 973 974 Callback function 'cb' will be called in handshakes, and is 975 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 976 Argument 'arg' is for application purposes (the value as given to 977 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 978 be provided to the callback function). The callback function 979 has to return non-zero to report success: usually 1 to use opaque 980 PRF input just if possible, or 2 to enforce use of the opaque PRF 981 input. In the latter case, the library will abort the handshake 982 if opaque PRF input is not successfully negotiated. 983 984 Arguments 'peerinput' and 'len' given to the callback function 985 will always be NULL and 0 in the case of a client. A server will 986 see the client's opaque PRF input through these variables if 987 available (NULL and 0 otherwise). Note that if the server 988 provides an opaque PRF input, the length must be the same as the 989 length of the client's opaque PRF input. 990 991 Note that the callback function will only be called when creating 992 a new session (session resumption can resume whatever was 993 previously negotiated), and will not be called in SSL 2.0 994 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 995 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 996 for applications that need to enforce opaque PRF input. 997 998 [Bodo Moeller] 999 1000 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1001 MAC. 1002 1003 [Victor B. Wagner <vitus@cryptocom.ru>] 1004 1005 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1006 RFC4507bis. The encrypted ticket format is an encrypted encoded 1007 SSL_SESSION structure, that way new session features are automatically 1008 supported. 1009 1010 If a client application caches session in an SSL_SESSION structure 1011 support is transparent because tickets are now stored in the encoded 1012 SSL_SESSION. 1013 1014 The SSL_CTX structure automatically generates keys for ticket 1015 protection in servers so again support should be possible 1016 with no application modification. 1017 1018 If a client or server wishes to disable RFC4507 support then the option 1019 SSL_OP_NO_TICKET can be set. 1020 1021 Add a TLS extension debugging callback to allow the contents of any client 1022 or server extensions to be examined. 1023 1024 This work was sponsored by Google. 1025 [Steve Henson] 1026 1027 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1028 OpenSSL should now compile cleanly on gcc 4.2 1029 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1030 1031 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1032 support including streaming MAC support: this is required for GOST 1033 ciphersuite support. 1034 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1035 1036 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1037 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1038 to output in BER and PEM format. 1039 [Steve Henson] 1040 1041 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1042 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1043 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1044 ENGINE support for HMAC keys which are unextractable. New -mac and 1045 -macopt options to dgst utility. 1046 [Steve Henson] 1047 1048 *) New option -sigopt to dgst utility. Update dgst to use 1049 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1050 alternative signing paramaters such as X9.31 or PSS in the dgst 1051 utility. 1052 [Steve Henson] 1053 1054 *) Change ssl_cipher_apply_rule(), the internal function that does 1055 the work each time a ciphersuite string requests enabling 1056 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1057 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1058 the order of disabled ciphersuites such that those ciphersuites 1059 that most recently went from enabled to disabled not only stay 1060 in order with respect to each other, but also have higher priority 1061 than other disabled ciphersuites the next time ciphersuites are 1062 enabled again. 1063 1064 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1065 the same ciphersuites as with "HIGH" alone, but in a specific 1066 order where the PSK ciphersuites come first (since they are the 1067 most recently disabled ciphersuites when "HIGH" is parsed). 1068 1069 Also, change ssl_create_cipher_list() (using this new 1070 funcionality) such that between otherwise identical 1071 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1072 the default order. 1073 [Bodo Moeller] 1074 1075 *) Change ssl_create_cipher_list() so that it automatically 1076 arranges the ciphersuites in reasonable order before starting 1077 to process the rule string. Thus, the definition for "DEFAULT" 1078 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1079 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1080 This makes it much easier to arrive at a reasonable default order 1081 in applications for which anonymous ciphers are OK (meaning 1082 that you can't actually use DEFAULT). 1083 [Bodo Moeller; suggested by Victor Duchovni] 1084 1085 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1086 processing) into multiple integers instead of setting 1087 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1088 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1089 (These masks as well as the individual bit definitions are hidden 1090 away into the non-exported interface ssl/ssl_locl.h, so this 1091 change to the definition of the SSL_CIPHER structure shouldn't 1092 affect applications.) This give us more bits for each of these 1093 categories, so there is no longer a need to coagulate AES128 and 1094 AES256 into a single algorithm bit, and to coagulate Camellia128 1095 and Camellia256 into a single algorithm bit, which has led to all 1096 kinds of kludges. 1097 1098 Thus, among other things, the kludge introduced in 0.9.7m and 1099 0.9.8e for masking out AES256 independently of AES128 or masking 1100 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1101 1102 With the change, we also introduce new ciphersuite aliases that 1103 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1104 "CAMELLIA256". 1105 [Bodo Moeller] 1106 1107 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1108 Use the leftmost N bytes of the signature input if the input is 1109 larger than the prime q (with N being the size in bytes of q). 1110 [Nils Larsch] 1111 1112 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1113 it yet and it is largely untested. 1114 [Steve Henson] 1115 1116 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1117 [Nils Larsch] 1118 1119 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1120 some compilers (gcc 4.2 and later) reject their use. Safestack is 1121 reimplemented. Update ASN1 to avoid use of legacy functions. 1122 [Steve Henson] 1123 1124 *) Win32/64 targets are linked with Winsock2. 1125 [Andy Polyakov] 1126 1127 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1128 to external functions. This can be used to increase CRL handling 1129 efficiency especially when CRLs are very large by (for example) storing 1130 the CRL revoked certificates in a database. 1131 [Steve Henson] 1132 1133 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1134 new CRLs added to a directory can be used. New command line option 1135 -verify_return_error to s_client and s_server. This causes real errors 1136 to be returned by the verify callback instead of carrying on no matter 1137 what. This reflects the way a "real world" verify callback would behave. 1138 [Steve Henson] 1139 1140 *) GOST engine, supporting several GOST algorithms and public key formats. 1141 Kindly donated by Cryptocom. 1142 [Cryptocom] 1143 1144 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1145 partitioned by DP are handled but no indirect CRL or reason partitioning 1146 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1147 selected via a scoring technique which handles IDP and AKID in CRLs. 1148 [Steve Henson] 1149 1150 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1151 will ultimately be used for all verify operations: this will remove the 1152 X509_STORE dependency on certificate verification and allow alternative 1153 lookup methods. X509_STORE based implementations of these two callbacks. 1154 [Steve Henson] 1155 1156 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1157 Modify get_crl() to find a valid (unexpired) CRL if possible. 1158 [Steve Henson] 1159 1160 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1161 this would be called X509_CRL_cmp() but that name is already used by 1162 a function that just compares CRL issuer names. Cache several CRL 1163 extensions in X509_CRL structure and cache CRLDP in X509. 1164 [Steve Henson] 1165 1166 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1167 this maps equivalent X509_NAME structures into a consistent structure. 1168 Name comparison can then be performed rapidly using memcmp(). 1169 [Steve Henson] 1170 1171 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1172 utility. 1173 [Steve Henson] 1174 1175 *) Allow digests to supply their own micalg string for S/MIME type using 1176 the ctrl EVP_MD_CTRL_MICALG. 1177 [Steve Henson] 1178 1179 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1180 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1181 ctrl. It can then customise the structure before and/or after signing 1182 if necessary. 1183 [Steve Henson] 1184 1185 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1186 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1187 to free up any added signature OIDs. 1188 [Steve Henson] 1189 1190 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1191 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1192 digest and cipher tables. New options added to openssl utility: 1193 list-message-digest-algorithms and list-cipher-algorithms. 1194 [Steve Henson] 1195 1196 *) Change the array representation of binary polynomials: the list 1197 of degrees of non-zero coefficients is now terminated with -1. 1198 Previously it was terminated with 0, which was also part of the 1199 value; thus, the array representation was not applicable to 1200 polynomials where t^0 has coefficient zero. This change makes 1201 the array representation useful in a more general context. 1202 [Douglas Stebila] 1203 1204 *) Various modifications and fixes to SSL/TLS cipher string 1205 handling. For ECC, the code now distinguishes between fixed ECDH 1206 with RSA certificates on the one hand and with ECDSA certificates 1207 on the other hand, since these are separate ciphersuites. The 1208 unused code for Fortezza ciphersuites has been removed. 1209 1210 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1211 (not "ECDHE"). For consistency with the code for DH 1212 certificates, use of ECDH certificates is now considered ECDH 1213 authentication, not RSA or ECDSA authentication (the latter is 1214 merely the CA's signing algorithm and not actively used in the 1215 protocol). 1216 1217 The temporary ciphersuite alias "ECCdraft" is no longer 1218 available, and ECC ciphersuites are no longer excluded from "ALL" 1219 and "DEFAULT". The following aliases now exist for RFC 4492 1220 ciphersuites, most of these by analogy with the DH case: 1221 1222 kECDHr - ECDH cert, signed with RSA 1223 kECDHe - ECDH cert, signed with ECDSA 1224 kECDH - ECDH cert (signed with either RSA or ECDSA) 1225 kEECDH - ephemeral ECDH 1226 ECDH - ECDH cert or ephemeral ECDH 1227 1228 aECDH - ECDH cert 1229 aECDSA - ECDSA cert 1230 ECDSA - ECDSA cert 1231 1232 AECDH - anonymous ECDH 1233 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1234 1235 [Bodo Moeller] 1236 1237 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1238 Use correct micalg parameters depending on digest(s) in signed message. 1239 [Steve Henson] 1240 1241 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1242 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1243 [Steve Henson] 1244 1245 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1246 an engine to register a method. Add ENGINE lookups for methods and 1247 functional reference processing. 1248 [Steve Henson] 1249 1250 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1251 EVP_{Sign,Verify}* which allow an application to customise the signature 1252 process. 1253 [Steve Henson] 1254 1255 *) New -resign option to smime utility. This adds one or more signers 1256 to an existing PKCS#7 signedData structure. Also -md option to use an 1257 alternative message digest algorithm for signing. 1258 [Steve Henson] 1259 1260 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1261 create PKCS7 structures containing multiple signers. Update smime 1262 application to support multiple signers. 1263 [Steve Henson] 1264 1265 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1266 digest MAC. 1267 [Steve Henson] 1268 1269 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1270 Reorganize PBE internals to lookup from a static table using NIDs, 1271 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1272 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1273 PRF which will be automatically used with PBES2. 1274 [Steve Henson] 1275 1276 *) Replace the algorithm specific calls to generate keys in "req" with the 1277 new API. 1278 [Steve Henson] 1279 1280 *) Update PKCS#7 enveloped data routines to use new API. This is now 1281 supported by any public key method supporting the encrypt operation. A 1282 ctrl is added to allow the public key algorithm to examine or modify 1283 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1284 a no op. 1285 [Steve Henson] 1286 1287 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1288 a default digest type to use. In most cases this will be SHA1 but some 1289 algorithms (such as GOST) need to specify an alternative digest. The 1290 return value indicates how strong the prefernce is 1 means optional and 1291 2 is mandatory (that is it is the only supported type). Modify 1292 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1293 use the default md. Update openssl utilities to use the default digest 1294 type for signing if it is not explicitly indicated. 1295 [Steve Henson] 1296 1297 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1298 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1299 signing method from the key type. This effectively removes the link 1300 between digests and public key types. 1301 [Steve Henson] 1302 1303 *) Add an OID cross reference table and utility functions. Its purpose is to 1304 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1305 rsaEncryption. This will allow some of the algorithm specific hackery 1306 needed to use the correct OID to be removed. 1307 [Steve Henson] 1308 1309 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1310 structures for PKCS7_sign(). They are now set up by the relevant public 1311 key ASN1 method. 1312 [Steve Henson] 1313 1314 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1315 [Steve Henson] 1316 1317 *) Add support for key derivation (agreement) in the API, DH method and 1318 pkeyutl. 1319 [Steve Henson] 1320 1321 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1322 public and private key formats. As a side effect these add additional 1323 command line functionality not previously available: DSA signatures can be 1324 generated and verified using pkeyutl and DH key support and generation in 1325 pkey, genpkey. 1326 [Steve Henson] 1327 1328 *) BeOS support. 1329 [Oliver Tappe <zooey@hirschkaefer.de>] 1330 1331 *) New make target "install_html_docs" installs HTML renditions of the 1332 manual pages. 1333 [Oliver Tappe <zooey@hirschkaefer.de>] 1334 1335 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1336 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1337 support key and parameter generation and add initial key generation 1338 functionality for RSA. 1339 [Steve Henson] 1340 1341 *) Add functions for main EVP_PKEY_method operations. The undocumented 1342 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1343 EVP_PKEY_{encrypt,decrypt}_old. 1344 [Steve Henson] 1345 1346 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1347 key API, doesn't do much yet. 1348 [Steve Henson] 1349 1350 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1351 public key algorithms. New option to openssl utility: 1352 "list-public-key-algorithms" to print out info. 1353 [Steve Henson] 1354 1355 *) Implement the Supported Elliptic Curves Extension for 1356 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1357 [Douglas Stebila] 1358 1359 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1360 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1361 [Steve Henson] 1362 1363 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1364 utilities such as rsa, dsa, dsaparam etc except they process any key 1365 type. 1366 [Steve Henson] 1367 1368 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1369 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1370 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1371 structure. 1372 [Steve Henson] 1373 1374 *) Initial support for pluggable public key ASN1. 1375 De-spaghettify the public key ASN1 handling. Move public and private 1376 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1377 algorithm specific handling to a single module within the relevant 1378 algorithm directory. Add functions to allow (near) opaque processing 1379 of public and private key structures. 1380 [Steve Henson] 1381 1382 *) Implement the Supported Point Formats Extension for 1383 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1384 [Douglas Stebila] 1385 1386 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1387 for the psk identity [hint] and the psk callback functions to the 1388 SSL_SESSION, SSL and SSL_CTX structure. 1389 1390 New ciphersuites: 1391 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1392 PSK-AES256-CBC-SHA 1393 1394 New functions: 1395 SSL_CTX_use_psk_identity_hint 1396 SSL_get_psk_identity_hint 1397 SSL_get_psk_identity 1398 SSL_use_psk_identity_hint 1399 1400 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1401 1402 *) Add RFC 3161 compliant time stamp request creation, response generation 1403 and response verification functionality. 1404 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1405 1406 *) Add initial support for TLS extensions, specifically for the server_name 1407 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1408 have new members for a host name. The SSL data structure has an 1409 additional member SSL_CTX *initial_ctx so that new sessions can be 1410 stored in that context to allow for session resumption, even after the 1411 SSL has been switched to a new SSL_CTX in reaction to a client's 1412 server_name extension. 1413 1414 New functions (subject to change): 1415 1416 SSL_get_servername() 1417 SSL_get_servername_type() 1418 SSL_set_SSL_CTX() 1419 1420 New CTRL codes and macros (subject to change): 1421 1422 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1423 - SSL_CTX_set_tlsext_servername_callback() 1424 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1425 - SSL_CTX_set_tlsext_servername_arg() 1426 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1427 1428 openssl s_client has a new '-servername ...' option. 1429 1430 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1431 '-key2 ...', '-servername_fatal' (subject to change). This allows 1432 testing the HostName extension for a specific single host name ('-cert' 1433 and '-key' remain fallbacks for handshakes without HostName 1434 negotiation). If the unrecogninzed_name alert has to be sent, this by 1435 default is a warning; it becomes fatal with the '-servername_fatal' 1436 option. 1437 1438 [Peter Sylvester, Remy Allais, Christophe Renou] 1439 1440 *) Whirlpool hash implementation is added. 1441 [Andy Polyakov] 1442 1443 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1444 bn(64,32). Because of instruction set limitations it doesn't have 1445 any negative impact on performance. This was done mostly in order 1446 to make it possible to share assembler modules, such as bn_mul_mont 1447 implementations, between 32- and 64-bit builds without hassle. 1448 [Andy Polyakov] 1449 1450 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1451 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1452 macro. 1453 [Bodo Moeller] 1454 1455 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1456 dedicated Montgomery multiplication procedure, is introduced. 1457 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1458 "64-bit" performance on certain 32-bit targets. 1459 [Andy Polyakov] 1460 1461 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1462 in SSL structures. New SSL ctrl to set maximum send fragment size. 1463 Save memory by seeting the I/O buffer sizes dynamically instead of 1464 using the maximum available value. 1465 [Steve Henson] 1466 1467 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1468 in addition to the text details. 1469 [Bodo Moeller] 1470 1471 *) Very, very preliminary EXPERIMENTAL support for printing of general 1472 ASN1 structures. This currently produces rather ugly output and doesn't 1473 handle several customised structures at all. 1474 [Steve Henson] 1475 1476 *) Integrated support for PVK file format and some related formats such 1477 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1478 these in the 'rsa' and 'dsa' utilities. 1479 [Steve Henson] 1480 1481 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1482 [Steve Henson] 1483 1484 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1485 place for the (very old) "NETSCAPE" format certificates which are now 1486 handled using new ASN1 code equivalents. 1487 [Steve Henson] 1488 1489 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1490 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1491 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1492 [Nils Larsch] 1493 1494 *) Modify CRL distribution points extension code to print out previously 1495 unsupported fields. Enhance extension setting code to allow setting of 1496 all fields. 1497 [Steve Henson] 1498 1499 *) Add print and set support for Issuing Distribution Point CRL extension. 1500 [Steve Henson] 1501 1502 *) Change 'Configure' script to enable Camellia by default. 1503 [NTT] 1504 1505 Changes between 0.9.8x and 0.9.8y [5 Feb 2013] 1506 1507 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1508 1509 This addresses the flaw in CBC record processing discovered by 1510 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1511 at: http://www.isg.rhul.ac.uk/tls/ 1512 1513 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1514 Security Group at Royal Holloway, University of London 1515 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1516 Emilia K�sper for the initial patch. 1517 (CVE-2013-0169) 1518 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1519 1520 *) Return an error when checking OCSP signatures when key is NULL. 1521 This fixes a DoS attack. (CVE-2013-0166) 1522 [Steve Henson] 1523 1524 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1525 the right response is stapled. Also change SSL_get_certificate() 1526 so it returns the certificate actually sent. 1527 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1528 (This is a backport) 1529 [Rob Stradling <rob.stradling@comodo.com>] 1530 1531 *) Fix possible deadlock when decoding public keys. 1532 [Steve Henson] 1533 1534 Changes between 0.9.8w and 0.9.8x [10 May 2012] 1535 1536 *) Sanity check record length before skipping explicit IV in DTLS 1537 to fix DoS attack. 1538 1539 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1540 fuzzing as a service testing platform. 1541 (CVE-2012-2333) 1542 [Steve Henson] 1543 1544 *) Initialise tkeylen properly when encrypting CMS messages. 1545 Thanks to Solar Designer of Openwall for reporting this issue. 1546 [Steve Henson] 1547 1548 Changes between 0.9.8v and 0.9.8w [23 Apr 2012] 1549 1550 *) The fix for CVE-2012-2110 did not take into account that the 1551 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an 1552 int in OpenSSL 0.9.8, making it still vulnerable. Fix by 1553 rejecting negative len parameter. (CVE-2012-2131) 1554 [Tomas Hoger <thoger@redhat.com>] 1555 1556 Changes between 0.9.8u and 0.9.8v [19 Apr 2012] 1557 1558 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1559 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1560 in CRYPTO_realloc_clean. 1561 1562 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1563 issue and to Adam Langley <agl@chromium.org> for fixing it. 1564 (CVE-2012-2110) 1565 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1566 1567 Changes between 0.9.8t and 0.9.8u [12 Mar 2012] 1568 1569 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 1570 in CMS and PKCS7 code. When RSA decryption fails use a random key for 1571 content decryption and always return the same error. Note: this attack 1572 needs on average 2^20 messages so it only affects automated senders. The 1573 old behaviour can be reenabled in the CMS code by setting the 1574 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 1575 an MMA defence is not necessary. 1576 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 1577 this issue. (CVE-2012-0884) 1578 [Steve Henson] 1579 1580 *) Fix CVE-2011-4619: make sure we really are receiving a 1581 client hello before rejecting multiple SGC restarts. Thanks to 1582 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 1583 [Steve Henson] 1584 1585 Changes between 0.9.8s and 0.9.8t [18 Jan 2012] 1586 1587 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 1588 Thanks to Antonio Martin, Enterprise Secure Access Research and 1589 Development, Cisco Systems, Inc. for discovering this bug and 1590 preparing a fix. (CVE-2012-0050) 1591 [Antonio Martin] 1592 1593 Changes between 0.9.8r and 0.9.8s [4 Jan 2012] 1594 1595 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 1596 of the Vaudenay padding oracle attack on CBC mode encryption 1597 which enables an efficient plaintext recovery attack against 1598 the OpenSSL implementation of DTLS. Their attack exploits timing 1599 differences arising during decryption processing. A research 1600 paper describing this attack can be found at: 1601 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 1602 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1603 Security Group at Royal Holloway, University of London 1604 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 1605 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 1606 for preparing the fix. (CVE-2011-4108) 1607 [Robin Seggelmann, Michael Tuexen] 1608 1609 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109) 1610 [Ben Laurie, Kasper <ekasper@google.com>] 1611 1612 *) Clear bytes used for block padding of SSL 3.0 records. 1613 (CVE-2011-4576) 1614 [Adam Langley (Google)] 1615 1616 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 1617 Kadianakis <desnacked@gmail.com> for discovering this issue and 1618 Adam Langley for preparing the fix. (CVE-2011-4619) 1619 [Adam Langley (Google)] 1620 1621 *) Prevent malformed RFC3779 data triggering an assertion failure. 1622 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 1623 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1624 [Rob Austein <sra@hactrn.net>] 1625 1626 *) Fix ssl_ciph.c set-up race. 1627 [Adam Langley (Google)] 1628 1629 *) Fix spurious failures in ecdsatest.c. 1630 [Emilia K�sper (Google)] 1631 1632 *) Fix the BIO_f_buffer() implementation (which was mixing different 1633 interpretations of the '..._len' fields). 1634 [Adam Langley (Google)] 1635 1636 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1637 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1638 threads won't reuse the same blinding coefficients. 1639 1640 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1641 lock to call BN_BLINDING_invert_ex, and avoids one use of 1642 BN_BLINDING_update for each BN_BLINDING structure (previously, 1643 the last update always remained unused). 1644 [Emilia K�sper (Google)] 1645 1646 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1647 for multi-threaded use of ECDH. 1648 [Adam Langley (Google)] 1649 1650 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1651 [Bodo Moeller] 1652 1653 *) Add protection against ECDSA timing attacks as mentioned in the paper 1654 by Billy Bob Brumley and Nicola Tuveri, see: 1655 1656 http://eprint.iacr.org/2011/232.pdf 1657 1658 [Billy Bob Brumley and Nicola Tuveri] 1659 1660 Changes between 0.9.8q and 0.9.8r [8 Feb 2011] 1661 1662 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1663 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1664 1665 *) Fix bug in string printing code: if *any* escaping is enabled we must 1666 escape the escape character (backslash) or the resulting string is 1667 ambiguous. 1668 [Steve Henson] 1669 1670 Changes between 0.9.8p and 0.9.8q [2 Dec 2010] 1671 1672 *) Disable code workaround for ancient and obsolete Netscape browsers 1673 and servers: an attacker can use it in a ciphersuite downgrade attack. 1674 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1675 [Steve Henson] 1676 1677 *) Fixed J-PAKE implementation error, originally discovered by 1678 Sebastien Martini, further info and confirmation from Stefan 1679 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1680 [Ben Laurie] 1681 1682 Changes between 0.9.8o and 0.9.8p [16 Nov 2010] 1683 1684 *) Fix extension code to avoid race conditions which can result in a buffer 1685 overrun vulnerability: resumed sessions must not be modified as they can 1686 be shared by multiple threads. CVE-2010-3864 1687 [Steve Henson] 1688 1689 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939 1690 [Steve Henson] 1691 1692 *) Don't reencode certificate when calculating signature: cache and use 1693 the original encoding instead. This makes signature verification of 1694 some broken encodings work correctly. 1695 [Steve Henson] 1696 1697 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT 1698 is also one of the inputs. 1699 [Emilia K�sper <emilia.kasper@esat.kuleuven.be> (Google)] 1700 1701 *) Don't repeatedly append PBE algorithms to table if they already exist. 1702 Sort table on each new add. This effectively makes the table read only 1703 after all algorithms are added and subsequent calls to PKCS12_pbe_add 1704 etc are non-op. 1705 [Steve Henson] 1706 1707 Changes between 0.9.8n and 0.9.8o [01 Jun 2010] 1708 1709 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after 1710 OpenSSL 1.0.0.] 1711 1712 *) Correct a typo in the CMS ASN1 module which can result in invalid memory 1713 access or freeing data twice (CVE-2010-0742) 1714 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>] 1715 1716 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more 1717 common in certificates and some applications which only call 1718 SSL_library_init and not OpenSSL_add_all_algorithms() will fail. 1719 [Steve Henson] 1720 1721 *) VMS fixes: 1722 Reduce copying into .apps and .test in makevms.com 1723 Don't try to use blank CA certificate in CA.com 1724 Allow use of C files from original directories in maketests.com 1725 [Steven M. Schweda" <sms@antinode.info>] 1726 1727 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1728 1729 *) When rejecting SSL/TLS records due to an incorrect version number, never 1730 update s->server with a new major version number. As of 1731 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1732 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1733 the previous behavior could result in a read attempt at NULL when 1734 receiving specific incorrect SSL/TLS records once record payload 1735 protection is active. (CVE-2010-0740) 1736 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1737 1738 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1739 could be crashed if the relevant tables were not present (e.g. chrooted). 1740 [Tomas Hoger <thoger@redhat.com>] 1741 1742 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1743 1744 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1745 [Martin Olsson, Neel Mehta] 1746 1747 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1748 accommodate for stack sorting, always a write lock!). 1749 [Bodo Moeller] 1750 1751 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1752 excessive delays in the RAND_poll(): over a minute. As a workaround 1753 include a time check in the inner Heap32Next loop too. 1754 [Steve Henson] 1755 1756 *) The code that handled flushing of data in SSL/TLS originally used the 1757 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1758 the problem outlined in PR#1949. The fix suggested there however can 1759 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1760 of Apache). So instead simplify the code to flush unconditionally. 1761 This should be fine since flushing with no data to flush is a no op. 1762 [Steve Henson] 1763 1764 *) Handle TLS versions 2.0 and later properly and correctly use the 1765 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1766 off ancient servers have a habit of sticking around for a while... 1767 [Steve Henson] 1768 1769 *) Modify compression code so it frees up structures without using the 1770 ex_data callbacks. This works around a problem where some applications 1771 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1772 restarting) then use compression (e.g. SSL with compression) later. 1773 This results in significant per-connection memory leaks and 1774 has caused some security issues including CVE-2008-1678 and 1775 CVE-2009-4355. 1776 [Steve Henson] 1777 1778 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1779 change when encrypting or decrypting. 1780 [Bodo Moeller] 1781 1782 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1783 connect and renegotiate with servers which do not support RI. 1784 Until RI is more widely deployed this option is enabled by default. 1785 [Steve Henson] 1786 1787 *) Add "missing" ssl ctrls to clear options and mode. 1788 [Steve Henson] 1789 1790 *) If client attempts to renegotiate and doesn't support RI respond with 1791 a no_renegotiation alert as required by RFC5746. Some renegotiating 1792 TLS clients will continue a connection gracefully when they receive 1793 the alert. Unfortunately OpenSSL mishandled this alert and would hang 1794 waiting for a server hello which it will never receive. Now we treat a 1795 received no_renegotiation alert as a fatal error. This is because 1796 applications requesting a renegotiation might well expect it to succeed 1797 and would have no code in place to handle the server denying it so the 1798 only safe thing to do is to terminate the connection. 1799 [Steve Henson] 1800 1801 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 1802 peer supports secure renegotiation and 0 otherwise. Print out peer 1803 renegotiation support in s_client/s_server. 1804 [Steve Henson] 1805 1806 *) Replace the highly broken and deprecated SPKAC certification method with 1807 the updated NID creation version. This should correctly handle UTF8. 1808 [Steve Henson] 1809 1810 *) Implement RFC5746. Re-enable renegotiation but require the extension 1811 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 1812 turns out to be a bad idea. It has been replaced by 1813 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 1814 SSL_CTX_set_options(). This is really not recommended unless you 1815 know what you are doing. 1816 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 1817 1818 *) Fixes to stateless session resumption handling. Use initial_ctx when 1819 issuing and attempting to decrypt tickets in case it has changed during 1820 servername handling. Use a non-zero length session ID when attempting 1821 stateless session resumption: this makes it possible to determine if 1822 a resumption has occurred immediately after receiving server hello 1823 (several places in OpenSSL subtly assume this) instead of later in 1824 the handshake. 1825 [Steve Henson] 1826 1827 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 1828 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 1829 fixes for a few places where the return code is not checked 1830 correctly. 1831 [Julia Lawall <julia@diku.dk>] 1832 1833 *) Add --strict-warnings option to Configure script to include devteam 1834 warnings in other configurations. 1835 [Steve Henson] 1836 1837 *) Add support for --libdir option and LIBDIR variable in makefiles. This 1838 makes it possible to install openssl libraries in locations which 1839 have names other than "lib", for example "/usr/lib64" which some 1840 systems need. 1841 [Steve Henson, based on patch from Jeremy Utley] 1842 1843 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 1844 X690 8.9.12 and can produce some misleading textual output of OIDs. 1845 [Steve Henson, reported by Dan Kaminsky] 1846 1847 *) Delete MD2 from algorithm tables. This follows the recommendation in 1848 several standards that it is not used in new applications due to 1849 several cryptographic weaknesses. For binary compatibility reasons 1850 the MD2 API is still compiled in by default. 1851 [Steve Henson] 1852 1853 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 1854 and restored. 1855 [Steve Henson] 1856 1857 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 1858 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 1859 clash. 1860 [Guenter <lists@gknw.net>] 1861 1862 *) Fix the server certificate chain building code to use X509_verify_cert(), 1863 it used to have an ad-hoc builder which was unable to cope with anything 1864 other than a simple chain. 1865 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 1866 1867 *) Don't check self signed certificate signatures in X509_verify_cert() 1868 by default (a flag can override this): it just wastes time without 1869 adding any security. As a useful side effect self signed root CAs 1870 with non-FIPS digests are now usable in FIPS mode. 1871 [Steve Henson] 1872 1873 *) In dtls1_process_out_of_seq_message() the check if the current message 1874 is already buffered was missing. For every new message was memory 1875 allocated, allowing an attacker to perform an denial of service attack 1876 with sending out of seq handshake messages until there is no memory 1877 left. Additionally every future messege was buffered, even if the 1878 sequence number made no sense and would be part of another handshake. 1879 So only messages with sequence numbers less than 10 in advance will be 1880 buffered. (CVE-2009-1378) 1881 [Robin Seggelmann, discovered by Daniel Mentz] 1882 1883 *) Records are buffered if they arrive with a future epoch to be 1884 processed after finishing the corresponding handshake. There is 1885 currently no limitation to this buffer allowing an attacker to perform 1886 a DOS attack with sending records with future epochs until there is no 1887 memory left. This patch adds the pqueue_size() function to detemine 1888 the size of a buffer and limits the record buffer to 100 entries. 1889 (CVE-2009-1377) 1890 [Robin Seggelmann, discovered by Daniel Mentz] 1891 1892 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 1893 parent structure is freed. (CVE-2009-1379) 1894 [Daniel Mentz] 1895 1896 *) Handle non-blocking I/O properly in SSL_shutdown() call. 1897 [Darryl Miles <darryl-mailinglists@netbauds.net>] 1898 1899 *) Add 2.5.4.* OIDs 1900 [Ilya O. <vrghost@gmail.com>] 1901 1902 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 1903 1904 *) Disable renegotiation completely - this fixes a severe security 1905 problem (CVE-2009-3555) at the cost of breaking all 1906 renegotiation. Renegotiation can be re-enabled by setting 1907 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 1908 run-time. This is really not recommended unless you know what 1909 you're doing. 1910 [Ben Laurie] 1911 1912 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 1913 1914 *) Don't set val to NULL when freeing up structures, it is freed up by 1915 underlying code. If sizeof(void *) > sizeof(long) this can result in 1916 zeroing past the valid field. (CVE-2009-0789) 1917 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 1918 1919 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 1920 checked correctly. This would allow some invalid signed attributes to 1921 appear to verify correctly. (CVE-2009-0591) 1922 [Ivan Nestlerode <inestlerode@us.ibm.com>] 1923 1924 *) Reject UniversalString and BMPString types with invalid lengths. This 1925 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 1926 a legal length. (CVE-2009-0590) 1927 [Steve Henson] 1928 1929 *) Set S/MIME signing as the default purpose rather than setting it 1930 unconditionally. This allows applications to override it at the store 1931 level. 1932 [Steve Henson] 1933 1934 *) Permit restricted recursion of ASN1 strings. This is needed in practice 1935 to handle some structures. 1936 [Steve Henson] 1937 1938 *) Improve efficiency of mem_gets: don't search whole buffer each time 1939 for a '\n' 1940 [Jeremy Shapiro <jnshapir@us.ibm.com>] 1941 1942 *) New -hex option for openssl rand. 1943 [Matthieu Herrb] 1944 1945 *) Print out UTF8String and NumericString when parsing ASN1. 1946 [Steve Henson] 1947 1948 *) Support NumericString type for name components. 1949 [Steve Henson] 1950 1951 *) Allow CC in the environment to override the automatically chosen 1952 compiler. Note that nothing is done to ensure flags work with the 1953 chosen compiler. 1954 [Ben Laurie] 1955 1956 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 1957 1958 *) Properly check EVP_VerifyFinal() and similar return values 1959 (CVE-2008-5077). 1960 [Ben Laurie, Bodo Moeller, Google Security Team] 1961 1962 *) Enable TLS extensions by default. 1963 [Ben Laurie] 1964 1965 *) Allow the CHIL engine to be loaded, whether the application is 1966 multithreaded or not. (This does not release the developer from the 1967 obligation to set up the dynamic locking callbacks.) 1968 [Sander Temme <sander@temme.net>] 1969 1970 *) Use correct exit code if there is an error in dgst command. 1971 [Steve Henson; problem pointed out by Roland Dirlewanger] 1972 1973 *) Tweak Configure so that you need to say "experimental-jpake" to enable 1974 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 1975 [Bodo Moeller] 1976 1977 *) Add experimental JPAKE support, including demo authentication in 1978 s_client and s_server. 1979 [Ben Laurie] 1980 1981 *) Set the comparison function in v3_addr_canonize(). 1982 [Rob Austein <sra@hactrn.net>] 1983 1984 *) Add support for XMPP STARTTLS in s_client. 1985 [Philip Paeps <philip@freebsd.org>] 1986 1987 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 1988 to ensure that even with this option, only ciphersuites in the 1989 server's preference list will be accepted. (Note that the option 1990 applies only when resuming a session, so the earlier behavior was 1991 just about the algorithm choice for symmetric cryptography.) 1992 [Bodo Moeller] 1993 1994 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 1995 1996 *) Fix NULL pointer dereference if a DTLS server received 1997 ChangeCipherSpec as first record (CVE-2009-1386). 1998 [PR #1679] 1999 2000 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2001 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2002 [Nagendra Modadugu] 2003 2004 *) The fix in 0.9.8c that supposedly got rid of unsafe 2005 double-checked locking was incomplete for RSA blinding, 2006 addressing just one layer of what turns out to have been 2007 doubly unsafe triple-checked locking. 2008 2009 So now fix this for real by retiring the MONT_HELPER macro 2010 in crypto/rsa/rsa_eay.c. 2011 2012 [Bodo Moeller; problem pointed out by Marius Schilder] 2013 2014 *) Various precautionary measures: 2015 2016 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2017 2018 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2019 (NB: This would require knowledge of the secret session ticket key 2020 to exploit, in which case you'd be SOL either way.) 2021 2022 - Change bn_nist.c so that it will properly handle input BIGNUMs 2023 outside the expected range. 2024 2025 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2026 builds. 2027 2028 [Neel Mehta, Bodo Moeller] 2029 2030 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2031 the load fails. Useful for distros. 2032 [Ben Laurie and the FreeBSD team] 2033 2034 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2035 [Steve Henson] 2036 2037 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2038 [Huang Ying] 2039 2040 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2041 2042 This work was sponsored by Logica. 2043 [Steve Henson] 2044 2045 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2046 keystores. Support for SSL/TLS client authentication too. 2047 Not compiled unless enable-capieng specified to Configure. 2048 2049 This work was sponsored by Logica. 2050 [Steve Henson] 2051 2052 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2053 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2054 attribute creation routines such as certifcate requests and PKCS#12 2055 files. 2056 [Steve Henson] 2057 2058 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2059 2060 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2061 handshake which could lead to a cilent crash as found using the 2062 Codenomicon TLS test suite (CVE-2008-1672) 2063 [Steve Henson, Mark Cox] 2064 2065 *) Fix double free in TLS server name extensions which could lead to 2066 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2067 [Joe Orton] 2068 2069 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2070 2071 Clear the error queue to ensure that error entries left from 2072 older function calls do not interfere with the correct operation. 2073 [Lutz Jaenicke, Erik de Castro Lopo] 2074 2075 *) Remove root CA certificates of commercial CAs: 2076 2077 The OpenSSL project does not recommend any specific CA and does not 2078 have any policy with respect to including or excluding any CA. 2079 Therefore it does not make any sense to ship an arbitrary selection 2080 of root CA certificates with the OpenSSL software. 2081 [Lutz Jaenicke] 2082 2083 *) RSA OAEP patches to fix two separate invalid memory reads. 2084 The first one involves inputs when 'lzero' is greater than 2085 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2086 before the beginning of from). The second one involves inputs where 2087 the 'db' section contains nothing but zeroes (there is a one-byte 2088 invalid read after the end of 'db'). 2089 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2090 2091 *) Partial backport from 0.9.9-dev: 2092 2093 Introduce bn_mul_mont (dedicated Montgomery multiplication 2094 procedure) as a candidate for BIGNUM assembler implementation. 2095 While 0.9.9-dev uses assembler for various architectures, only 2096 x86_64 is available by default here in the 0.9.8 branch, and 2097 32-bit x86 is available through a compile-time setting. 2098 2099 To try the 32-bit x86 assembler implementation, use Configure 2100 option "enable-montasm" (which exists only for this backport). 2101 2102 As "enable-montasm" for 32-bit x86 disclaims code stability 2103 anyway, in this constellation we activate additional code 2104 backported from 0.9.9-dev for further performance improvements, 2105 namely BN_from_montgomery_word. (To enable this otherwise, 2106 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2107 2108 [Andy Polyakov (backport partially by Bodo Moeller)] 2109 2110 *) Add TLS session ticket callback. This allows an application to set 2111 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2112 values. This is useful for key rollover for example where several key 2113 sets may exist with different names. 2114 [Steve Henson] 2115 2116 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2117 This was broken until now in 0.9.8 releases, such that the only way 2118 a registered ENGINE could be used (assuming it initialises 2119 successfully on the host) was to explicitly set it as the default 2120 for the relevant algorithms. This is in contradiction with 0.9.7 2121 behaviour and the documentation. With this fix, when an ENGINE is 2122 registered into a given algorithm's table of implementations, the 2123 'uptodate' flag is reset so that auto-discovery will be used next 2124 time a new context for that algorithm attempts to select an 2125 implementation. 2126 [Ian Lister (tweaked by Geoff Thorpe)] 2127 2128 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2129 implemention in the following ways: 2130 2131 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2132 hard coded. 2133 2134 Lack of BER streaming support means one pass streaming processing is 2135 only supported if data is detached: setting the streaming flag is 2136 ignored for embedded content. 2137 2138 CMS support is disabled by default and must be explicitly enabled 2139 with the enable-cms configuration option. 2140 [Steve Henson] 2141 2142 *) Update the GMP engine glue to do direct copies between BIGNUM and 2143 mpz_t when openssl and GMP use the same limb size. Otherwise the 2144 existing "conversion via a text string export" trick is still used. 2145 [Paul Sheer <paulsheer@gmail.com>] 2146 2147 *) Zlib compression BIO. This is a filter BIO which compressed and 2148 uncompresses any data passed through it. 2149 [Steve Henson] 2150 2151 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2152 RFC3394 compatible AES key wrapping. 2153 [Steve Henson] 2154 2155 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2156 sets string data without copying. X509_ALGOR_set0() and 2157 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2158 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2159 from an X509_ATTRIBUTE structure optionally checking it occurs only 2160 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2161 data. 2162 [Steve Henson] 2163 2164 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2165 to get the expected BN_FLG_CONSTTIME behavior. 2166 [Bodo Moeller (Google)] 2167 2168 *) Netware support: 2169 2170 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2171 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2172 - added some more tests to do_tests.pl 2173 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2174 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2175 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2176 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2177 - various changes to netware.pl to enable gcc-cross builds on Win32 2178 platform 2179 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2180 - various changes to fix missing prototype warnings 2181 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2182 - added AES, WHIRLPOOL and CPUID assembler code to build files 2183 - added missing AES assembler make rules to mk1mf.pl 2184 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2185 [Guenter Knauf <eflash@gmx.net>] 2186 2187 *) Implement certificate status request TLS extension defined in RFC3546. 2188 A client can set the appropriate parameters and receive the encoded 2189 OCSP response via a callback. A server can query the supplied parameters 2190 and set the encoded OCSP response in the callback. Add simplified examples 2191 to s_client and s_server. 2192 [Steve Henson] 2193 2194 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2195 2196 *) Fix various bugs: 2197 + Binary incompatibility of ssl_ctx_st structure 2198 + DTLS interoperation with non-compliant servers 2199 + Don't call get_session_cb() without proposed session 2200 + Fix ia64 assembler code 2201 [Andy Polyakov, Steve Henson] 2202 2203 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2204 2205 *) DTLS Handshake overhaul. There were longstanding issues with 2206 OpenSSL DTLS implementation, which were making it impossible for 2207 RFC 4347 compliant client to communicate with OpenSSL server. 2208 Unfortunately just fixing these incompatibilities would "cut off" 2209 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2210 server keeps tolerating non RFC compliant syntax. The opposite is 2211 not true, 0.9.8f client can not communicate with earlier server. 2212 This update even addresses CVE-2007-4995. 2213 [Andy Polyakov] 2214 2215 *) Changes to avoid need for function casts in OpenSSL: some compilers 2216 (gcc 4.2 and later) reject their use. 2217 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2218 Steve Henson] 2219 2220 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2221 RFC4507bis. The encrypted ticket format is an encrypted encoded 2222 SSL_SESSION structure, that way new session features are automatically 2223 supported. 2224 2225 If a client application caches session in an SSL_SESSION structure 2226 support is transparent because tickets are now stored in the encoded 2227 SSL_SESSION. 2228 2229 The SSL_CTX structure automatically generates keys for ticket 2230 protection in servers so again support should be possible 2231 with no application modification. 2232 2233 If a client or server wishes to disable RFC4507 support then the option 2234 SSL_OP_NO_TICKET can be set. 2235 2236 Add a TLS extension debugging callback to allow the contents of any client 2237 or server extensions to be examined. 2238 2239 This work was sponsored by Google. 2240 [Steve Henson] 2241 2242 *) Add initial support for TLS extensions, specifically for the server_name 2243 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2244 have new members for a host name. The SSL data structure has an 2245 additional member SSL_CTX *initial_ctx so that new sessions can be 2246 stored in that context to allow for session resumption, even after the 2247 SSL has been switched to a new SSL_CTX in reaction to a client's 2248 server_name extension. 2249 2250 New functions (subject to change): 2251 2252 SSL_get_servername() 2253 SSL_get_servername_type() 2254 SSL_set_SSL_CTX() 2255 2256 New CTRL codes and macros (subject to change): 2257 2258 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2259 - SSL_CTX_set_tlsext_servername_callback() 2260 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2261 - SSL_CTX_set_tlsext_servername_arg() 2262 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2263 2264 openssl s_client has a new '-servername ...' option. 2265 2266 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2267 '-key2 ...', '-servername_fatal' (subject to change). This allows 2268 testing the HostName extension for a specific single host name ('-cert' 2269 and '-key' remain fallbacks for handshakes without HostName 2270 negotiation). If the unrecogninzed_name alert has to be sent, this by 2271 default is a warning; it becomes fatal with the '-servername_fatal' 2272 option. 2273 2274 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2275 2276 *) Add AES and SSE2 assembly language support to VC++ build. 2277 [Steve Henson] 2278 2279 *) Mitigate attack on final subtraction in Montgomery reduction. 2280 [Andy Polyakov] 2281 2282 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2283 (which previously caused an internal error). 2284 [Bodo Moeller] 2285 2286 *) Squeeze another 10% out of IGE mode when in != out. 2287 [Ben Laurie] 2288 2289 *) AES IGE mode speedup. 2290 [Dean Gaudet (Google)] 2291 2292 *) Add the Korean symmetric 128-bit cipher SEED (see 2293 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2294 add SEED ciphersuites from RFC 4162: 2295 2296 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2297 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2298 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2299 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2300 2301 To minimize changes between patchlevels in the OpenSSL 0.9.8 2302 series, SEED remains excluded from compilation unless OpenSSL 2303 is configured with 'enable-seed'. 2304 [KISA, Bodo Moeller] 2305 2306 *) Mitigate branch prediction attacks, which can be practical if a 2307 single processor is shared, allowing a spy process to extract 2308 information. For detailed background information, see 2309 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2310 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2311 and Necessary Software Countermeasures"). The core of the change 2312 are new versions BN_div_no_branch() and 2313 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2314 respectively, which are slower, but avoid the security-relevant 2315 conditional branches. These are automatically called by BN_div() 2316 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2317 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2318 remove a conditional branch. 2319 2320 BN_FLG_CONSTTIME is the new name for the previous 2321 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2322 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2323 in the exponent causes BN_mod_exp_mont() to use the alternative 2324 implementation in BN_mod_exp_mont_consttime().) The old name 2325 remains as a deprecated alias. 2326 2327 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2328 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2329 constant-time implementations for more than just exponentiation. 2330 Here too the old name is kept as a deprecated alias. 2331 2332 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2333 the BN_BLINDING structure gets an independent copy of the 2334 modulus. This means that the previous "BIGNUM *m" argument to 2335 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2336 essentially becomes "const BIGNUM *m", although we can't actually 2337 change this in the header file before 0.9.9. It allows 2338 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2339 enable BN_FLG_CONSTTIME. 2340 2341 [Matthew D Wood (Intel Corp)] 2342 2343 *) In the SSL/TLS server implementation, be strict about session ID 2344 context matching (which matters if an application uses a single 2345 external cache for different purposes). Previously, 2346 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2347 set. This did ensure strict client verification, but meant that, 2348 with applications using a single external cache for quite 2349 different requirements, clients could circumvent ciphersuite 2350 restrictions for a given session ID context by starting a session 2351 in a different context. 2352 [Bodo Moeller] 2353 2354 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2355 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2356 authentication-only ciphersuites. 2357 [Bodo Moeller] 2358 2359 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2360 not complete and could lead to a possible single byte overflow 2361 (CVE-2007-5135) [Ben Laurie] 2362 2363 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2364 2365 *) Since AES128 and AES256 (and similarly Camellia128 and 2366 Camellia256) share a single mask bit in the logic of 2367 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2368 kludge to work properly if AES128 is available and AES256 isn't 2369 (or if Camellia128 is available and Camellia256 isn't). 2370 [Victor Duchovni] 2371 2372 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2373 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2374 When a point or a seed is encoded in a BIT STRING, we need to 2375 prevent the removal of trailing zero bits to get the proper DER 2376 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2377 of a NamedBitList, for which trailing 0 bits need to be removed.) 2378 [Bodo Moeller] 2379 2380 *) Have SSL/TLS server implementation tolerate "mismatched" record 2381 protocol version while receiving ClientHello even if the 2382 ClientHello is fragmented. (The server can't insist on the 2383 particular protocol version it has chosen before the ServerHello 2384 message has informed the client about his choice.) 2385 [Bodo Moeller] 2386 2387 *) Add RFC 3779 support. 2388 [Rob Austein for ARIN, Ben Laurie] 2389 2390 *) Load error codes if they are not already present instead of using a 2391 static variable. This allows them to be cleanly unloaded and reloaded. 2392 Improve header file function name parsing. 2393 [Steve Henson] 2394 2395 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2396 or CAPABILITY handshake as required by RFCs. 2397 [Goetz Babin-Ebell] 2398 2399 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2400 2401 *) Introduce limits to prevent malicious keys being able to 2402 cause a denial of service. (CVE-2006-2940) 2403 [Steve Henson, Bodo Moeller] 2404 2405 *) Fix ASN.1 parsing of certain invalid structures that can result 2406 in a denial of service. (CVE-2006-2937) [Steve Henson] 2407 2408 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2409 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2410 2411 *) Fix SSL client code which could crash if connecting to a 2412 malicious SSLv2 server. (CVE-2006-4343) 2413 [Tavis Ormandy and Will Drewry, Google Security Team] 2414 2415 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2416 match only those. Before that, "AES256-SHA" would be interpreted 2417 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2418 the same strength classification in 0.9.7h) as we currently only 2419 have a single AES bit in the ciphersuite description bitmap. 2420 That change, however, also applied to ciphersuite strings such as 2421 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2422 namely, SSL 2.0 ciphersuites in addition to the more common ones 2423 from SSL 3.0/TLS 1.0. 2424 2425 So we change the selection algorithm again: Naming an explicit 2426 ciphersuite selects this one ciphersuite, and any other similar 2427 ciphersuite (same bitmap) from *other* protocol versions. 2428 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2429 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2430 2431 Since SSL 2.0 does not have any ciphersuites for which the 2432 128/256 bit distinction would be relevant, this works for now. 2433 The proper fix will be to use different bits for AES128 and 2434 AES256, which would have avoided the problems from the beginning; 2435 however, bits are scarce, so we can only do this in a new release 2436 (not just a patchlevel) when we can change the SSL_CIPHER 2437 definition to split the single 'unsigned long mask' bitmap into 2438 multiple values to extend the available space. 2439 2440 [Bodo Moeller] 2441 2442 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2443 2444 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2445 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2446 2447 *) Add AES IGE and biIGE modes. 2448 [Ben Laurie] 2449 2450 *) Change the Unix randomness entropy gathering to use poll() when 2451 possible instead of select(), since the latter has some 2452 undesirable limitations. 2453 [Darryl Miles via Richard Levitte and Bodo Moeller] 2454 2455 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2456 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2457 cannot be implicitly activated as part of, e.g., the "AES" alias. 2458 However, please upgrade to OpenSSL 0.9.9[-dev] for 2459 non-experimental use of the ECC ciphersuites to get TLS extension 2460 support, which is required for curve and point format negotiation 2461 to avoid potential handshake problems. 2462 [Bodo Moeller] 2463 2464 *) Disable rogue ciphersuites: 2465 2466 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2467 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2468 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2469 2470 The latter two were purportedly from 2471 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2472 appear there. 2473 2474 Also deactivate the remaining ciphersuites from 2475 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2476 unofficial, and the ID has long expired. 2477 [Bodo Moeller] 2478 2479 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2480 dual-core machines) and other potential thread-safety issues. 2481 [Bodo Moeller] 2482 2483 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2484 versions), which is now available for royalty-free use 2485 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2486 Also, add Camellia TLS ciphersuites from RFC 4132. 2487 2488 To minimize changes between patchlevels in the OpenSSL 0.9.8 2489 series, Camellia remains excluded from compilation unless OpenSSL 2490 is configured with 'enable-camellia'. 2491 [NTT] 2492 2493 *) Disable the padding bug check when compression is in use. The padding 2494 bug check assumes the first packet is of even length, this is not 2495 necessarily true if compresssion is enabled and can result in false 2496 positives causing handshake failure. The actual bug test is ancient 2497 code so it is hoped that implementations will either have fixed it by 2498 now or any which still have the bug do not support compression. 2499 [Steve Henson] 2500 2501 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2502 2503 *) When applying a cipher rule check to see if string match is an explicit 2504 cipher suite and only match that one cipher suite if it is. 2505 [Steve Henson] 2506 2507 *) Link in manifests for VC++ if needed. 2508 [Austin Ziegler <halostatue@gmail.com>] 2509 2510 *) Update support for ECC-based TLS ciphersuites according to 2511 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2512 TLS extensions, which are supported starting with the 0.9.9 2513 branch, not in the OpenSSL 0.9.8 branch). 2514 [Douglas Stebila] 2515 2516 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2517 opaque EVP_CIPHER_CTX handling. 2518 [Steve Henson] 2519 2520 *) Fixes and enhancements to zlib compression code. We now only use 2521 "zlib1.dll" and use the default __cdecl calling convention on Win32 2522 to conform with the standards mentioned here: 2523 http://www.zlib.net/DLL_FAQ.txt 2524 Static zlib linking now works on Windows and the new --with-zlib-include 2525 --with-zlib-lib options to Configure can be used to supply the location 2526 of the headers and library. Gracefully handle case where zlib library 2527 can't be loaded. 2528 [Steve Henson] 2529 2530 *) Several fixes and enhancements to the OID generation code. The old code 2531 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2532 handle numbers larger than ULONG_MAX, truncated printing and had a 2533 non standard OBJ_obj2txt() behaviour. 2534 [Steve Henson] 2535 2536 *) Add support for building of engines under engine/ as shared libraries 2537 under VC++ build system. 2538 [Steve Henson] 2539 2540 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2541 Hopefully, we will not see any false combination of paths any more. 2542 [Richard Levitte] 2543 2544 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2545 2546 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2547 (part of SSL_OP_ALL). This option used to disable the 2548 countermeasure against man-in-the-middle protocol-version 2549 rollback in the SSL 2.0 server implementation, which is a bad 2550 idea. (CVE-2005-2969) 2551 2552 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2553 for Information Security, National Institute of Advanced Industrial 2554 Science and Technology [AIST], Japan)] 2555 2556 *) Add two function to clear and return the verify parameter flags. 2557 [Steve Henson] 2558 2559 *) Keep cipherlists sorted in the source instead of sorting them at 2560 runtime, thus removing the need for a lock. 2561 [Nils Larsch] 2562 2563 *) Avoid some small subgroup attacks in Diffie-Hellman. 2564 [Nick Mathewson and Ben Laurie] 2565 2566 *) Add functions for well-known primes. 2567 [Nick Mathewson] 2568 2569 *) Extended Windows CE support. 2570 [Satoshi Nakamura and Andy Polyakov] 2571 2572 *) Initialize SSL_METHOD structures at compile time instead of during 2573 runtime, thus removing the need for a lock. 2574 [Steve Henson] 2575 2576 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2577 attempting to decrypt each encrypted key in turn. Add support to 2578 smime utility. 2579 [Steve Henson] 2580 2581 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2582 2583 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2584 OpenSSL 0.9.8.] 2585 2586 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2587 [Richard Levitte] 2588 2589 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2590 key into the same file any more. 2591 [Richard Levitte] 2592 2593 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2594 [Andy Polyakov] 2595 2596 *) Add -utf8 command line and config file option to 'ca'. 2597 [Stefan <stf@udoma.org] 2598 2599 *) Removed the macro des_crypt(), as it seems to conflict with some 2600 libraries. Use DES_crypt(). 2601 [Richard Levitte] 2602 2603 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2604 involves renaming the source and generated shared-libs for 2605 both. The engines will accept the corrected or legacy ids 2606 ('ncipher' and '4758_cca' respectively) when binding. NB, 2607 this only applies when building 'shared'. 2608 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2609 2610 *) Add attribute functions to EVP_PKEY structure. Modify 2611 PKCS12_create() to recognize a CSP name attribute and 2612 use it. Make -CSP option work again in pkcs12 utility. 2613 [Steve Henson] 2614 2615 *) Add new functionality to the bn blinding code: 2616 - automatic re-creation of the BN_BLINDING parameters after 2617 a fixed number of uses (currently 32) 2618 - add new function for parameter creation 2619 - introduce flags to control the update behaviour of the 2620 BN_BLINDING parameters 2621 - hide BN_BLINDING structure 2622 Add a second BN_BLINDING slot to the RSA structure to improve 2623 performance when a single RSA object is shared among several 2624 threads. 2625 [Nils Larsch] 2626 2627 *) Add support for DTLS. 2628 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2629 2630 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2631 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2632 [Walter Goulet] 2633 2634 *) Remove buggy and incompletet DH cert support from 2635 ssl/ssl_rsa.c and ssl/s3_both.c 2636 [Nils Larsch] 2637 2638 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2639 the apps/openssl applications. 2640 [Nils Larsch] 2641 2642 *) Compile clean with "-Wall -Wmissing-prototypes 2643 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2644 DEBUG_SAFESTACK must also be set. 2645 [Ben Laurie] 2646 2647 *) Change ./Configure so that certain algorithms can be disabled by default. 2648 The new counterpiece to "no-xxx" is "enable-xxx". 2649 2650 The patented RC5 and MDC2 algorithms will now be disabled unless 2651 "enable-rc5" and "enable-mdc2", respectively, are specified. 2652 2653 (IDEA remains enabled despite being patented. This is because IDEA 2654 is frequently required for interoperability, and there is no license 2655 fee for non-commercial use. As before, "no-idea" can be used to 2656 avoid this algorithm.) 2657 2658 [Bodo Moeller] 2659 2660 *) Add processing of proxy certificates (see RFC 3820). This work was 2661 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2662 EGEE (Enabling Grids for E-science in Europe). 2663 [Richard Levitte] 2664 2665 *) RC4 performance overhaul on modern architectures/implementations, such 2666 as Intel P4, IA-64 and AMD64. 2667 [Andy Polyakov] 2668 2669 *) New utility extract-section.pl. This can be used specify an alternative 2670 section number in a pod file instead of having to treat each file as 2671 a separate case in Makefile. This can be done by adding two lines to the 2672 pod file: 2673 2674 =for comment openssl_section:XXX 2675 2676 The blank line is mandatory. 2677 2678 [Steve Henson] 2679 2680 *) New arguments -certform, -keyform and -pass for s_client and s_server 2681 to allow alternative format key and certificate files and passphrase 2682 sources. 2683 [Steve Henson] 2684 2685 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2686 update associated structures and add various utility functions. 2687 2688 Add new policy related verify parameters, include policy checking in 2689 standard verify code. Enhance 'smime' application with extra parameters 2690 to support policy checking and print out. 2691 [Steve Henson] 2692 2693 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2694 Nehemiah processors. These extensions support AES encryption in hardware 2695 as well as RNG (though RNG support is currently disabled). 2696 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2697 2698 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2699 [Geoff Thorpe] 2700 2701 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2702 [Andy Polyakov and a number of other people] 2703 2704 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2705 implementation contributed by IBM. 2706 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2707 2708 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2709 exponent rather than 'unsigned long'. There is a corresponding change to 2710 the new 'rsa_keygen' element of the RSA_METHOD structure. 2711 [Jelte Jansen, Geoff Thorpe] 2712 2713 *) Functionality for creating the initial serial number file is now 2714 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2715 2716 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2717 number file to 1, which is bound to cause problems. To avoid 2718 the problems while respecting compatibility between different 0.9.7 2719 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2720 CA.pl for serial number initialization. With the new release 0.9.8, 2721 we can fix the problem directly in the 'ca' utility.) 2722 [Steve Henson] 2723 2724 *) Reduced header interdepencies by declaring more opaque objects in 2725 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2726 give fewer recursive includes, which could break lazy source code - so 2727 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2728 developers should define this symbol when building and using openssl to 2729 ensure they track the recommended behaviour, interfaces, [etc], but 2730 backwards-compatible behaviour prevails when this isn't defined. 2731 [Geoff Thorpe] 2732 2733 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2734 [Steve Henson] 2735 2736 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2737 This will generate a random key of the appropriate length based on the 2738 cipher context. The EVP_CIPHER can provide its own random key generation 2739 routine to support keys of a specific form. This is used in the des and 2740 3des routines to generate a key of the correct parity. Update S/MIME 2741 code to use new functions and hence generate correct parity DES keys. 2742 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2743 valid (weak or incorrect parity). 2744 [Steve Henson] 2745 2746 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2747 as looking them up. This is useful when the verified structure may contain 2748 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2749 present unless the new PKCS7_NO_CRL flag is asserted. 2750 [Steve Henson] 2751 2752 *) Extend ASN1 oid configuration module. It now additionally accepts the 2753 syntax: 2754 2755 shortName = some long name, 1.2.3.4 2756 [Steve Henson] 2757 2758 *) Reimplemented the BN_CTX implementation. There is now no more static 2759 limitation on the number of variables it can handle nor the depth of the 2760 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2761 information can now expand as required, and rather than having a single 2762 static array of bignums, BN_CTX now uses a linked-list of such arrays 2763 allowing it to expand on demand whilst maintaining the usefulness of 2764 BN_CTX's "bundling". 2765 [Geoff Thorpe] 2766 2767 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2768 to allow all RSA operations to function using a single BN_CTX. 2769 [Geoff Thorpe] 2770 2771 *) Preliminary support for certificate policy evaluation and checking. This 2772 is initially intended to pass the tests outlined in "Conformance Testing 2773 of Relying Party Client Certificate Path Processing Logic" v1.07. 2774 [Steve Henson] 2775 2776 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2777 remained unused and not that useful. A variety of other little bignum 2778 tweaks and fixes have also been made continuing on from the audit (see 2779 below). 2780 [Geoff Thorpe] 2781 2782 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2783 associated ASN1, EVP and SSL functions and old ASN1 macros. 2784 [Richard Levitte] 2785 2786 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2787 and this should never fail. So the return value from the use of 2788 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2789 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2790 [Geoff Thorpe] 2791 2792 *) BN_CTX_get() should return zero-valued bignums, providing the same 2793 initialised value as BN_new(). 2794 [Geoff Thorpe, suggested by Ulf M�ller] 2795 2796 *) Support for inhibitAnyPolicy certificate extension. 2797 [Steve Henson] 2798 2799 *) An audit of the BIGNUM code is underway, for which debugging code is 2800 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 2801 is considered valid when processing BIGNUMs, and causes execution to 2802 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 2803 further steps are taken to deliberately pollute unused data in BIGNUM 2804 structures to try and expose faulty code further on. For now, openssl will 2805 (in its default mode of operation) continue to tolerate the inconsistent 2806 forms that it has tolerated in the past, but authors and packagers should 2807 consider trying openssl and their own applications when compiled with 2808 these debugging symbols defined. It will help highlight potential bugs in 2809 their own code, and will improve the test coverage for OpenSSL itself. At 2810 some point, these tighter rules will become openssl's default to improve 2811 maintainability, though the assert()s and other overheads will remain only 2812 in debugging configurations. See bn.h for more details. 2813 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 2814 2815 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 2816 that can only be obtained through BN_CTX_new() (which implicitly 2817 initialises it). The presence of this function only made it possible 2818 to overwrite an existing structure (and cause memory leaks). 2819 [Geoff Thorpe] 2820 2821 *) Because of the callback-based approach for implementing LHASH as a 2822 template type, lh_insert() adds opaque objects to hash-tables and 2823 lh_doall() or lh_doall_arg() are typically used with a destructor callback 2824 to clean up those corresponding objects before destroying the hash table 2825 (and losing the object pointers). So some over-zealous constifications in 2826 LHASH have been relaxed so that lh_insert() does not take (nor store) the 2827 objects as "const" and the lh_doall[_arg] callback wrappers are not 2828 prototyped to have "const" restrictions on the object pointers they are 2829 given (and so aren't required to cast them away any more). 2830 [Geoff Thorpe] 2831 2832 *) The tmdiff.h API was so ugly and minimal that our own timing utility 2833 (speed) prefers to use its own implementation. The two implementations 2834 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 2835 its object type properly exposed (MS_TM) instead of casting to/from "char 2836 *". This may still change yet if someone realises MS_TM and "ms_time_***" 2837 aren't necessarily the greatest nomenclatures - but this is what was used 2838 internally to the implementation so I've used that for now. 2839 [Geoff Thorpe] 2840 2841 *) Ensure that deprecated functions do not get compiled when 2842 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 2843 the self-tests were still using deprecated key-generation functions so 2844 these have been updated also. 2845 [Geoff Thorpe] 2846 2847 *) Reorganise PKCS#7 code to separate the digest location functionality 2848 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 2849 New function PKCS7_set_digest() to set the digest type for PKCS#7 2850 digestedData type. Add additional code to correctly generate the 2851 digestedData type and add support for this type in PKCS7 initialization 2852 functions. 2853 [Steve Henson] 2854 2855 *) New function PKCS7_set0_type_other() this initializes a PKCS7 2856 structure of type "other". 2857 [Steve Henson] 2858 2859 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 2860 sure the loop does correctly stop and breaking ("division by zero") 2861 modulus operations are not performed. The (pre-generated) prime 2862 table crypto/bn/bn_prime.h was already correct, but it could not be 2863 re-generated on some platforms because of the "division by zero" 2864 situation in the script. 2865 [Ralf S. Engelschall] 2866 2867 *) Update support for ECC-based TLS ciphersuites according to 2868 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 2869 SHA-1 now is only used for "small" curves (where the 2870 representation of a field element takes up to 24 bytes); for 2871 larger curves, the field element resulting from ECDH is directly 2872 used as premaster secret. 2873 [Douglas Stebila (Sun Microsystems Laboratories)] 2874 2875 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 2876 curve secp160r1 to the tests. 2877 [Douglas Stebila (Sun Microsystems Laboratories)] 2878 2879 *) Add the possibility to load symbols globally with DSO. 2880 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 2881 2882 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 2883 control of the error stack. 2884 [Richard Levitte] 2885 2886 *) Add support for STORE in ENGINE. 2887 [Richard Levitte] 2888 2889 *) Add the STORE type. The intention is to provide a common interface 2890 to certificate and key stores, be they simple file-based stores, or 2891 HSM-type store, or LDAP stores, or... 2892 NOTE: The code is currently UNTESTED and isn't really used anywhere. 2893 [Richard Levitte] 2894 2895 *) Add a generic structure called OPENSSL_ITEM. This can be used to 2896 pass a list of arguments to any function as well as provide a way 2897 for a function to pass data back to the caller. 2898 [Richard Levitte] 2899 2900 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 2901 works like BUF_strdup() but can be used to duplicate a portion of 2902 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 2903 a memory area. 2904 [Richard Levitte] 2905 2906 *) Add the function sk_find_ex() which works like sk_find(), but will 2907 return an index to an element even if an exact match couldn't be 2908 found. The index is guaranteed to point at the element where the 2909 searched-for key would be inserted to preserve sorting order. 2910 [Richard Levitte] 2911 2912 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 2913 takes an extra flags argument for optional functionality. Currently, 2914 the following flags are defined: 2915 2916 OBJ_BSEARCH_VALUE_ON_NOMATCH 2917 This one gets OBJ_bsearch_ex() to return a pointer to the first 2918 element where the comparing function returns a negative or zero 2919 number. 2920 2921 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 2922 This one gets OBJ_bsearch_ex() to return a pointer to the first 2923 element where the comparing function returns zero. This is useful 2924 if there are more than one element where the comparing function 2925 returns zero. 2926 [Richard Levitte] 2927 2928 *) Make it possible to create self-signed certificates with 'openssl ca' 2929 in such a way that the self-signed certificate becomes part of the 2930 CA database and uses the same mechanisms for serial number generation 2931 as all other certificate signing. The new flag '-selfsign' enables 2932 this functionality. Adapt CA.sh and CA.pl.in. 2933 [Richard Levitte] 2934 2935 *) Add functionality to check the public key of a certificate request 2936 against a given private. This is useful to check that a certificate 2937 request can be signed by that key (self-signing). 2938 [Richard Levitte] 2939 2940 *) Make it possible to have multiple active certificates with the same 2941 subject in the CA index file. This is done only if the keyword 2942 'unique_subject' is set to 'no' in the main CA section (default 2943 if 'CA_default') of the configuration file. The value is saved 2944 with the database itself in a separate index attribute file, 2945 named like the index file with '.attr' appended to the name. 2946 [Richard Levitte] 2947 2948 *) Generate muti valued AVAs using '+' notation in config files for 2949 req and dirName. 2950 [Steve Henson] 2951 2952 *) Support for nameConstraints certificate extension. 2953 [Steve Henson] 2954 2955 *) Support for policyConstraints certificate extension. 2956 [Steve Henson] 2957 2958 *) Support for policyMappings certificate extension. 2959 [Steve Henson] 2960 2961 *) Make sure the default DSA_METHOD implementation only uses its 2962 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 2963 and change its own handlers to be NULL so as to remove unnecessary 2964 indirection. This lets alternative implementations fallback to the 2965 default implementation more easily. 2966 [Geoff Thorpe] 2967 2968 *) Support for directoryName in GeneralName related extensions 2969 in config files. 2970 [Steve Henson] 2971 2972 *) Make it possible to link applications using Makefile.shared. 2973 Make that possible even when linking against static libraries! 2974 [Richard Levitte] 2975 2976 *) Support for single pass processing for S/MIME signing. This now 2977 means that S/MIME signing can be done from a pipe, in addition 2978 cleartext signing (multipart/signed type) is effectively streaming 2979 and the signed data does not need to be all held in memory. 2980 2981 This is done with a new flag PKCS7_STREAM. When this flag is set 2982 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 2983 is done after the data is output (and digests calculated) in 2984 SMIME_write_PKCS7(). 2985 [Steve Henson] 2986 2987 *) Add full support for -rpath/-R, both in shared libraries and 2988 applications, at least on the platforms where it's known how 2989 to do it. 2990 [Richard Levitte] 2991 2992 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 2993 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 2994 will now compute a table of multiples of the generator that 2995 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 2996 faster (notably in the case of a single point multiplication, 2997 scalar * generator). 2998 [Nils Larsch, Bodo Moeller] 2999 3000 *) IPv6 support for certificate extensions. The various extensions 3001 which use the IP:a.b.c.d can now take IPv6 addresses using the 3002 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3003 correctly. 3004 [Steve Henson] 3005 3006 *) Added an ENGINE that implements RSA by performing private key 3007 exponentiations with the GMP library. The conversions to and from 3008 GMP's mpz_t format aren't optimised nor are any montgomery forms 3009 cached, and on x86 it appears OpenSSL's own performance has caught up. 3010 However there are likely to be other architectures where GMP could 3011 provide a boost. This ENGINE is not built in by default, but it can be 3012 specified at Configure time and should be accompanied by the necessary 3013 linker additions, eg; 3014 ./config -DOPENSSL_USE_GMP -lgmp 3015 [Geoff Thorpe] 3016 3017 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3018 testing availability of engines with "-t" - the old behaviour is 3019 produced by increasing the feature's verbosity with "-tt". 3020 [Geoff Thorpe] 3021 3022 *) ECDSA routines: under certain error conditions uninitialized BN objects 3023 could be freed. Solution: make sure initialization is performed early 3024 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3025 via PR#459) 3026 [Lutz Jaenicke] 3027 3028 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3029 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3030 software implementations. For DSA and DH, parameter generation can 3031 also be overriden by providing the appropriate method callbacks. 3032 [Geoff Thorpe] 3033 3034 *) Change the "progress" mechanism used in key-generation and 3035 primality testing to functions that take a new BN_GENCB pointer in 3036 place of callback/argument pairs. The new API functions have "_ex" 3037 postfixes and the older functions are reimplemented as wrappers for 3038 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3039 declarations of the old functions to help (graceful) attempts to 3040 migrate to the new functions. Also, the new key-generation API 3041 functions operate on a caller-supplied key-structure and return 3042 success/failure rather than returning a key or NULL - this is to 3043 help make "keygen" another member function of RSA_METHOD etc. 3044 3045 Example for using the new callback interface: 3046 3047 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3048 void *my_arg = ...; 3049 BN_GENCB my_cb; 3050 3051 BN_GENCB_set(&my_cb, my_callback, my_arg); 3052 3053 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3054 /* For the meaning of a, b in calls to my_callback(), see the 3055 * documentation of the function that calls the callback. 3056 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3057 * my_callback should return 1 if it wants BN_is_prime_ex() 3058 * to continue, or 0 to stop. 3059 */ 3060 3061 [Geoff Thorpe] 3062 3063 *) Change the ZLIB compression method to be stateful, and make it 3064 available to TLS with the number defined in 3065 draft-ietf-tls-compression-04.txt. 3066 [Richard Levitte] 3067 3068 *) Add the ASN.1 structures and functions for CertificatePair, which 3069 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3070 3071 CertificatePair ::= SEQUENCE { 3072 forward [0] Certificate OPTIONAL, 3073 reverse [1] Certificate OPTIONAL, 3074 -- at least one of the pair shall be present -- } 3075 3076 Also implement the PEM functions to read and write certificate 3077 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3078 3079 This needed to be defined, mostly for the sake of the LDAP 3080 attribute crossCertificatePair, but may prove useful elsewhere as 3081 well. 3082 [Richard Levitte] 3083 3084 *) Make it possible to inhibit symlinking of shared libraries in 3085 Makefile.shared, for Cygwin's sake. 3086 [Richard Levitte] 3087 3088 *) Extend the BIGNUM API by creating a function 3089 void BN_set_negative(BIGNUM *a, int neg); 3090 and a macro that behave like 3091 int BN_is_negative(const BIGNUM *a); 3092 3093 to avoid the need to access 'a->neg' directly in applications. 3094 [Nils Larsch] 3095 3096 *) Implement fast modular reduction for pseudo-Mersenne primes 3097 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3098 EC_GROUP_new_curve_GFp() will now automatically use this 3099 if applicable. 3100 [Nils Larsch <nla@trustcenter.de>] 3101 3102 *) Add new lock type (CRYPTO_LOCK_BN). 3103 [Bodo Moeller] 3104 3105 *) Change the ENGINE framework to automatically load engines 3106 dynamically from specific directories unless they could be 3107 found to already be built in or loaded. Move all the 3108 current engines except for the cryptodev one to a new 3109 directory engines/. 3110 The engines in engines/ are built as shared libraries if 3111 the "shared" options was given to ./Configure or ./config. 3112 Otherwise, they are inserted in libcrypto.a. 3113 /usr/local/ssl/engines is the default directory for dynamic 3114 engines, but that can be overriden at configure time through 3115 the usual use of --prefix and/or --openssldir, and at run 3116 time with the environment variable OPENSSL_ENGINES. 3117 [Geoff Thorpe and Richard Levitte] 3118 3119 *) Add Makefile.shared, a helper makefile to build shared 3120 libraries. Addapt Makefile.org. 3121 [Richard Levitte] 3122 3123 *) Add version info to Win32 DLLs. 3124 [Peter 'Luna' Runestig" <peter@runestig.com>] 3125 3126 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3127 can be added using this API to created arbitrary PKCS#12 3128 files while avoiding the low level API. 3129 3130 New options to PKCS12_create(), key or cert can be NULL and 3131 will then be omitted from the output file. The encryption 3132 algorithm NIDs can be set to -1 for no encryption, the mac 3133 iteration count can be set to 0 to omit the mac. 3134 3135 Enhance pkcs12 utility by making the -nokeys and -nocerts 3136 options work when creating a PKCS#12 file. New option -nomac 3137 to omit the mac, NONE can be set for an encryption algorithm. 3138 New code is modified to use the enhanced PKCS12_create() 3139 instead of the low level API. 3140 [Steve Henson] 3141 3142 *) Extend ASN1 encoder to support indefinite length constructed 3143 encoding. This can output sequences tags and octet strings in 3144 this form. Modify pk7_asn1.c to support indefinite length 3145 encoding. This is experimental and needs additional code to 3146 be useful, such as an ASN1 bio and some enhanced streaming 3147 PKCS#7 code. 3148 3149 Extend template encode functionality so that tagging is passed 3150 down to the template encoder. 3151 [Steve Henson] 3152 3153 *) Let 'openssl req' fail if an argument to '-newkey' is not 3154 recognized instead of using RSA as a default. 3155 [Bodo Moeller] 3156 3157 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3158 As these are not official, they are not included in "ALL"; 3159 the "ECCdraft" ciphersuite group alias can be used to select them. 3160 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3161 3162 *) Add ECDH engine support. 3163 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3164 3165 *) Add ECDH in new directory crypto/ecdh/. 3166 [Douglas Stebila (Sun Microsystems Laboratories)] 3167 3168 *) Let BN_rand_range() abort with an error after 100 iterations 3169 without success (which indicates a broken PRNG). 3170 [Bodo Moeller] 3171 3172 *) Change BN_mod_sqrt() so that it verifies that the input value 3173 is really the square of the return value. (Previously, 3174 BN_mod_sqrt would show GIGO behaviour.) 3175 [Bodo Moeller] 3176 3177 *) Add named elliptic curves over binary fields from X9.62, SECG, 3178 and WAP/WTLS; add OIDs that were still missing. 3179 3180 [Sheueling Chang Shantz and Douglas Stebila 3181 (Sun Microsystems Laboratories)] 3182 3183 *) Extend the EC library for elliptic curves over binary fields 3184 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3185 New EC_METHOD: 3186 3187 EC_GF2m_simple_method 3188 3189 New API functions: 3190 3191 EC_GROUP_new_curve_GF2m 3192 EC_GROUP_set_curve_GF2m 3193 EC_GROUP_get_curve_GF2m 3194 EC_POINT_set_affine_coordinates_GF2m 3195 EC_POINT_get_affine_coordinates_GF2m 3196 EC_POINT_set_compressed_coordinates_GF2m 3197 3198 Point compression for binary fields is disabled by default for 3199 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3200 enable it). 3201 3202 As binary polynomials are represented as BIGNUMs, various members 3203 of the EC_GROUP and EC_POINT data structures can be shared 3204 between the implementations for prime fields and binary fields; 3205 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3206 are essentially identical to their ..._GFp counterparts. 3207 (For simplicity, the '..._GFp' prefix has been dropped from 3208 various internal method names.) 3209 3210 An internal 'field_div' method (similar to 'field_mul' and 3211 'field_sqr') has been added; this is used only for binary fields. 3212 3213 [Sheueling Chang Shantz and Douglas Stebila 3214 (Sun Microsystems Laboratories)] 3215 3216 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3217 through methods ('mul', 'precompute_mult'). 3218 3219 The generic implementations (now internally called 'ec_wNAF_mul' 3220 and 'ec_wNAF_precomputed_mult') remain the default if these 3221 methods are undefined. 3222 3223 [Sheueling Chang Shantz and Douglas Stebila 3224 (Sun Microsystems Laboratories)] 3225 3226 *) New function EC_GROUP_get_degree, which is defined through 3227 EC_METHOD. For curves over prime fields, this returns the bit 3228 length of the modulus. 3229 3230 [Sheueling Chang Shantz and Douglas Stebila 3231 (Sun Microsystems Laboratories)] 3232 3233 *) New functions EC_GROUP_dup, EC_POINT_dup. 3234 (These simply call ..._new and ..._copy). 3235 3236 [Sheueling Chang Shantz and Douglas Stebila 3237 (Sun Microsystems Laboratories)] 3238 3239 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3240 Polynomials are represented as BIGNUMs (where the sign bit is not 3241 used) in the following functions [macros]: 3242 3243 BN_GF2m_add 3244 BN_GF2m_sub [= BN_GF2m_add] 3245 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3246 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3247 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3248 BN_GF2m_mod_inv 3249 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3250 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3251 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3252 BN_GF2m_cmp [= BN_ucmp] 3253 3254 (Note that only the 'mod' functions are actually for fields GF(2^m). 3255 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3256 3257 For some functions, an the irreducible polynomial defining a 3258 field can be given as an 'unsigned int[]' with strictly 3259 decreasing elements giving the indices of those bits that are set; 3260 i.e., p[] represents the polynomial 3261 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3262 where 3263 p[0] > p[1] > ... > p[k] = 0. 3264 This applies to the following functions: 3265 3266 BN_GF2m_mod_arr 3267 BN_GF2m_mod_mul_arr 3268 BN_GF2m_mod_sqr_arr 3269 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3270 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3271 BN_GF2m_mod_exp_arr 3272 BN_GF2m_mod_sqrt_arr 3273 BN_GF2m_mod_solve_quad_arr 3274 BN_GF2m_poly2arr 3275 BN_GF2m_arr2poly 3276 3277 Conversion can be performed by the following functions: 3278 3279 BN_GF2m_poly2arr 3280 BN_GF2m_arr2poly 3281 3282 bntest.c has additional tests for binary polynomial arithmetic. 3283 3284 Two implementations for BN_GF2m_mod_div() are available. 3285 The default algorithm simply uses BN_GF2m_mod_inv() and 3286 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3287 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3288 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3289 3290 [Sheueling Chang Shantz and Douglas Stebila 3291 (Sun Microsystems Laboratories)] 3292 3293 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3294 functionality is disabled at compile-time. 3295 [Douglas Stebila <douglas.stebila@sun.com>] 3296 3297 *) Change default behaviour of 'openssl asn1parse' so that more 3298 information is visible when viewing, e.g., a certificate: 3299 3300 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3301 mode the content of non-printable OCTET STRINGs is output in a 3302 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3303 avoid the appearance of a printable string. 3304 [Nils Larsch <nla@trustcenter.de>] 3305 3306 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3307 functions 3308 EC_GROUP_set_asn1_flag() 3309 EC_GROUP_get_asn1_flag() 3310 EC_GROUP_set_point_conversion_form() 3311 EC_GROUP_get_point_conversion_form() 3312 These control ASN1 encoding details: 3313 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3314 has been set to OPENSSL_EC_NAMED_CURVE. 3315 - Points are encoded in uncompressed form by default; options for 3316 asn1_for are as for point2oct, namely 3317 POINT_CONVERSION_COMPRESSED 3318 POINT_CONVERSION_UNCOMPRESSED 3319 POINT_CONVERSION_HYBRID 3320 3321 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3322 functions 3323 EC_GROUP_set_seed() 3324 EC_GROUP_get0_seed() 3325 EC_GROUP_get_seed_len() 3326 This is used only for ASN1 purposes (so far). 3327 [Nils Larsch <nla@trustcenter.de>] 3328 3329 *) Add 'field_type' member to EC_METHOD, which holds the NID 3330 of the appropriate field type OID. The new function 3331 EC_METHOD_get_field_type() returns this value. 3332 [Nils Larsch <nla@trustcenter.de>] 3333 3334 *) Add functions 3335 EC_POINT_point2bn() 3336 EC_POINT_bn2point() 3337 EC_POINT_point2hex() 3338 EC_POINT_hex2point() 3339 providing useful interfaces to EC_POINT_point2oct() and 3340 EC_POINT_oct2point(). 3341 [Nils Larsch <nla@trustcenter.de>] 3342 3343 *) Change internals of the EC library so that the functions 3344 EC_GROUP_set_generator() 3345 EC_GROUP_get_generator() 3346 EC_GROUP_get_order() 3347 EC_GROUP_get_cofactor() 3348 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3349 to methods, which would lead to unnecessary code duplication when 3350 adding different types of curves. 3351 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3352 3353 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3354 arithmetic, and such that modified wNAFs are generated 3355 (which avoid length expansion in many cases). 3356 [Bodo Moeller] 3357 3358 *) Add a function EC_GROUP_check_discriminant() (defined via 3359 EC_METHOD) that verifies that the curve discriminant is non-zero. 3360 3361 Add a function EC_GROUP_check() that makes some sanity tests 3362 on a EC_GROUP, its generator and order. This includes 3363 EC_GROUP_check_discriminant(). 3364 [Nils Larsch <nla@trustcenter.de>] 3365 3366 *) Add ECDSA in new directory crypto/ecdsa/. 3367 3368 Add applications 'openssl ecparam' and 'openssl ecdsa' 3369 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3370 3371 ECDSA support is also included in various other files across the 3372 library. Most notably, 3373 - 'openssl req' now has a '-newkey ecdsa:file' option; 3374 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3375 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3376 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3377 them suitable for ECDSA where domain parameters must be 3378 extracted before the specific public key; 3379 - ECDSA engine support has been added. 3380 [Nils Larsch <nla@trustcenter.de>] 3381 3382 *) Include some named elliptic curves, and add OIDs from X9.62, 3383 SECG, and WAP/WTLS. Each curve can be obtained from the new 3384 function 3385 EC_GROUP_new_by_curve_name(), 3386 and the list of available named curves can be obtained with 3387 EC_get_builtin_curves(). 3388 Also add a 'curve_name' member to EC_GROUP objects, which can be 3389 accessed via 3390 EC_GROUP_set_curve_name() 3391 EC_GROUP_get_curve_name() 3392 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3393 3394 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3395 was actually never needed) and in BN_mul(). The removal in BN_mul() 3396 required a small change in bn_mul_part_recursive() and the addition 3397 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3398 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3399 bn_sub_words() and bn_add_words() except they take arrays with 3400 differing sizes. 3401 [Richard Levitte] 3402 3403 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3404 3405 *) Cleanse PEM buffers before freeing them since they may contain 3406 sensitive data. 3407 [Benjamin Bennett <ben@psc.edu>] 3408 3409 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3410 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3411 authentication-only ciphersuites. 3412 [Bodo Moeller] 3413 3414 *) Since AES128 and AES256 share a single mask bit in the logic of 3415 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3416 kludge to work properly if AES128 is available and AES256 isn't. 3417 [Victor Duchovni] 3418 3419 *) Expand security boundary to match 1.1.1 module. 3420 [Steve Henson] 3421 3422 *) Remove redundant features: hash file source, editing of test vectors 3423 modify fipsld to use external fips_premain.c signature. 3424 [Steve Henson] 3425 3426 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3427 run algorithm test programs. 3428 [Steve Henson] 3429 3430 *) Make algorithm test programs more tolerant of whitespace. 3431 [Steve Henson] 3432 3433 *) Have SSL/TLS server implementation tolerate "mismatched" record 3434 protocol version while receiving ClientHello even if the 3435 ClientHello is fragmented. (The server can't insist on the 3436 particular protocol version it has chosen before the ServerHello 3437 message has informed the client about his choice.) 3438 [Bodo Moeller] 3439 3440 *) Load error codes if they are not already present instead of using a 3441 static variable. This allows them to be cleanly unloaded and reloaded. 3442 [Steve Henson] 3443 3444 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3445 3446 *) Introduce limits to prevent malicious keys being able to 3447 cause a denial of service. (CVE-2006-2940) 3448 [Steve Henson, Bodo Moeller] 3449 3450 *) Fix ASN.1 parsing of certain invalid structures that can result 3451 in a denial of service. (CVE-2006-2937) [Steve Henson] 3452 3453 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3454 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3455 3456 *) Fix SSL client code which could crash if connecting to a 3457 malicious SSLv2 server. (CVE-2006-4343) 3458 [Tavis Ormandy and Will Drewry, Google Security Team] 3459 3460 *) Change ciphersuite string processing so that an explicit 3461 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3462 will no longer include "AES128-SHA"), and any other similar 3463 ciphersuite (same bitmap) from *other* protocol versions (so that 3464 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3465 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3466 changes from 0.9.8b and 0.9.8d. 3467 [Bodo Moeller] 3468 3469 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3470 3471 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3472 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3473 3474 *) Change the Unix randomness entropy gathering to use poll() when 3475 possible instead of select(), since the latter has some 3476 undesirable limitations. 3477 [Darryl Miles via Richard Levitte and Bodo Moeller] 3478 3479 *) Disable rogue ciphersuites: 3480 3481 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3482 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3483 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3484 3485 The latter two were purportedly from 3486 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3487 appear there. 3488 3489 Also deactive the remaining ciphersuites from 3490 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3491 unofficial, and the ID has long expired. 3492 [Bodo Moeller] 3493 3494 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3495 dual-core machines) and other potential thread-safety issues. 3496 [Bodo Moeller] 3497 3498 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3499 3500 *) Adapt fipsld and the build system to link against the validated FIPS 3501 module in FIPS mode. 3502 [Steve Henson] 3503 3504 *) Fixes for VC++ 2005 build under Windows. 3505 [Steve Henson] 3506 3507 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3508 from a Windows bash shell such as MSYS. It is autodetected from the 3509 "config" script when run from a VC++ environment. Modify standard VC++ 3510 build to use fipscanister.o from the GNU make build. 3511 [Steve Henson] 3512 3513 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3514 3515 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3516 The value now differs depending on if you build for FIPS or not. 3517 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3518 safely run with a non-FIPSed libcrypto, as it may crash because of 3519 the difference induced by this change. 3520 [Andy Polyakov] 3521 3522 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3523 3524 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3525 (part of SSL_OP_ALL). This option used to disable the 3526 countermeasure against man-in-the-middle protocol-version 3527 rollback in the SSL 2.0 server implementation, which is a bad 3528 idea. (CVE-2005-2969) 3529 3530 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3531 for Information Security, National Institute of Advanced Industrial 3532 Science and Technology [AIST], Japan)] 3533 3534 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3535 mainly for FIPS compliance and not fully integrated at this stage. 3536 [Steve Henson] 3537 3538 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3539 the exponentiation using a fixed-length exponent. (Otherwise, 3540 the information leaked through timing could expose the secret key 3541 after many signatures; cf. Bleichenbacher's attack on DSA with 3542 biased k.) 3543 [Bodo Moeller] 3544 3545 *) Make a new fixed-window mod_exp implementation the default for 3546 RSA, DSA, and DH private-key operations so that the sequence of 3547 squares and multiplies and the memory access pattern are 3548 independent of the particular secret key. This will mitigate 3549 cache-timing and potential related attacks. 3550 3551 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3552 and this is automatically used by BN_mod_exp_mont() if the new flag 3553 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3554 will use this BN flag for private exponents unless the flag 3555 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3556 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3557 3558 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3559 3560 *) Change the client implementation for SSLv23_method() and 3561 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3562 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3563 (Previously, the SSL 2.0 backwards compatible Client Hello 3564 message format would be used even with SSL_OP_NO_SSLv2.) 3565 [Bodo Moeller] 3566 3567 *) Add support for smime-type MIME parameter in S/MIME messages which some 3568 clients need. 3569 [Steve Henson] 3570 3571 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3572 a threadsafe manner. Modify rsa code to use new function and add calls 3573 to dsa and dh code (which had race conditions before). 3574 [Steve Henson] 3575 3576 *) Include the fixed error library code in the C error file definitions 3577 instead of fixing them up at runtime. This keeps the error code 3578 structures constant. 3579 [Steve Henson] 3580 3581 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3582 3583 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3584 OpenSSL 0.9.8.] 3585 3586 *) Fixes for newer kerberos headers. NB: the casts are needed because 3587 the 'length' field is signed on one version and unsigned on another 3588 with no (?) obvious way to tell the difference, without these VC++ 3589 complains. Also the "definition" of FAR (blank) is no longer included 3590 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3591 some needed definitions. 3592 [Steve Henson] 3593 3594 *) Undo Cygwin change. 3595 [Ulf M�ller] 3596 3597 *) Added support for proxy certificates according to RFC 3820. 3598 Because they may be a security thread to unaware applications, 3599 they must be explicitely allowed in run-time. See 3600 docs/HOWTO/proxy_certificates.txt for further information. 3601 [Richard Levitte] 3602 3603 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3604 3605 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3606 server and client random values. Previously 3607 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3608 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3609 3610 This change has negligible security impact because: 3611 3612 1. Server and client random values still have 24 bytes of pseudo random 3613 data. 3614 3615 2. Server and client random values are sent in the clear in the initial 3616 handshake. 3617 3618 3. The master secret is derived using the premaster secret (48 bytes in 3619 size for static RSA ciphersuites) as well as client server and random 3620 values. 3621 3622 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3623 to our attention. 3624 3625 [Stephen Henson, reported by UK NISCC] 3626 3627 *) Use Windows randomness collection on Cygwin. 3628 [Ulf M�ller] 3629 3630 *) Fix hang in EGD/PRNGD query when communication socket is closed 3631 prematurely by EGD/PRNGD. 3632 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3633 3634 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3635 [Steve Henson] 3636 3637 *) Back-port of selected performance improvements from development 3638 branch, as well as improved support for PowerPC platforms. 3639 [Andy Polyakov] 3640 3641 *) Add lots of checks for memory allocation failure, error codes to indicate 3642 failure and freeing up memory if a failure occurs. 3643 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3644 3645 *) Add new -passin argument to dgst. 3646 [Steve Henson] 3647 3648 *) Perform some character comparisons of different types in X509_NAME_cmp: 3649 this is needed for some certificates that reencode DNs into UTF8Strings 3650 (in violation of RFC3280) and can't or wont issue name rollover 3651 certificates. 3652 [Steve Henson] 3653 3654 *) Make an explicit check during certificate validation to see that 3655 the CA setting in each certificate on the chain is correct. As a 3656 side effect always do the following basic checks on extensions, 3657 not just when there's an associated purpose to the check: 3658 3659 - if there is an unhandled critical extension (unless the user 3660 has chosen to ignore this fault) 3661 - if the path length has been exceeded (if one is set at all) 3662 - that certain extensions fit the associated purpose (if one has 3663 been given) 3664 [Richard Levitte] 3665 3666 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3667 3668 *) Avoid a race condition when CRLs are checked in a multi threaded 3669 environment. This would happen due to the reordering of the revoked 3670 entries during signature checking and serial number lookup. Now the 3671 encoding is cached and the serial number sort performed under a lock. 3672 Add new STACK function sk_is_sorted(). 3673 [Steve Henson] 3674 3675 *) Add Delta CRL to the extension code. 3676 [Steve Henson] 3677 3678 *) Various fixes to s3_pkt.c so alerts are sent properly. 3679 [David Holmes <d.holmes@f5.com>] 3680 3681 *) Reduce the chances of duplicate issuer name and serial numbers (in 3682 violation of RFC3280) using the OpenSSL certificate creation utilities. 3683 This is done by creating a random 64 bit value for the initial serial 3684 number when a serial number file is created or when a self signed 3685 certificate is created using 'openssl req -x509'. The initial serial 3686 number file is created using 'openssl x509 -next_serial' in CA.pl 3687 rather than being initialized to 1. 3688 [Steve Henson] 3689 3690 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3691 3692 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3693 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3694 [Joe Orton, Steve Henson] 3695 3696 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3697 (CVE-2004-0112) 3698 [Joe Orton, Steve Henson] 3699 3700 *) Make it possible to have multiple active certificates with the same 3701 subject in the CA index file. This is done only if the keyword 3702 'unique_subject' is set to 'no' in the main CA section (default 3703 if 'CA_default') of the configuration file. The value is saved 3704 with the database itself in a separate index attribute file, 3705 named like the index file with '.attr' appended to the name. 3706 [Richard Levitte] 3707 3708 *) X509 verify fixes. Disable broken certificate workarounds when 3709 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3710 keyUsage extension present. Don't accept CRLs with unhandled critical 3711 extensions: since verify currently doesn't process CRL extensions this 3712 rejects a CRL with *any* critical extensions. Add new verify error codes 3713 for these cases. 3714 [Steve Henson] 3715 3716 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3717 A clarification of RFC2560 will require the use of OCTET STRINGs and 3718 some implementations cannot handle the current raw format. Since OpenSSL 3719 copies and compares OCSP nonces as opaque blobs without any attempt at 3720 parsing them this should not create any compatibility issues. 3721 [Steve Henson] 3722 3723 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3724 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3725 this HMAC (and other) operations are several times slower than OpenSSL 3726 < 0.9.7. 3727 [Steve Henson] 3728 3729 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3730 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3731 3732 *) Use the correct content when signing type "other". 3733 [Steve Henson] 3734 3735 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3736 3737 *) Fix various bugs revealed by running the NISCC test suite: 3738 3739 Stop out of bounds reads in the ASN1 code when presented with 3740 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3741 3742 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3743 3744 If verify callback ignores invalid public key errors don't try to check 3745 certificate signature with the NULL public key. 3746 3747 [Steve Henson] 3748 3749 *) New -ignore_err option in ocsp application to stop the server 3750 exiting on the first error in a request. 3751 [Steve Henson] 3752 3753 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3754 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3755 specifications. 3756 [Steve Henson] 3757 3758 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3759 extra data after the compression methods not only for TLS 1.0 3760 but also for SSL 3.0 (as required by the specification). 3761 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3762 3763 *) Change X509_certificate_type() to mark the key as exported/exportable 3764 when it's 512 *bits* long, not 512 bytes. 3765 [Richard Levitte] 3766 3767 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3768 blocks during encryption. 3769 [Richard Levitte] 3770 3771 *) Various fixes to base64 BIO and non blocking I/O. On write 3772 flushes were not handled properly if the BIO retried. On read 3773 data was not being buffered properly and had various logic bugs. 3774 This also affects blocking I/O when the data being decoded is a 3775 certain size. 3776 [Steve Henson] 3777 3778 *) Various S/MIME bugfixes and compatibility changes: 3779 output correct application/pkcs7 MIME type if 3780 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3781 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3782 of files as .eml work). Correctly handle very long lines in MIME 3783 parser. 3784 [Steve Henson] 3785 3786 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3787 3788 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3789 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3790 a protocol version number mismatch like a decryption error 3791 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3792 [Bodo Moeller] 3793 3794 *) Turn on RSA blinding by default in the default implementation 3795 to avoid a timing attack. Applications that don't want it can call 3796 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 3797 They would be ill-advised to do so in most cases. 3798 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 3799 3800 *) Change RSA blinding code so that it works when the PRNG is not 3801 seeded (in this case, the secret RSA exponent is abused as 3802 an unpredictable seed -- if it is not unpredictable, there 3803 is no point in blinding anyway). Make RSA blinding thread-safe 3804 by remembering the creator's thread ID in rsa->blinding and 3805 having all other threads use local one-time blinding factors 3806 (this requires more computation than sharing rsa->blinding, but 3807 avoids excessive locking; and if an RSA object is not shared 3808 between threads, blinding will still be very fast). 3809 [Bodo Moeller] 3810 3811 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 3812 ENGINE as defaults for all supported algorithms irrespective of 3813 the 'flags' parameter. 'flags' is now honoured, so applications 3814 should make sure they are passing it correctly. 3815 [Geoff Thorpe] 3816 3817 *) Target "mingw" now allows native Windows code to be generated in 3818 the Cygwin environment as well as with the MinGW compiler. 3819 [Ulf Moeller] 3820 3821 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 3822 3823 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 3824 via timing by performing a MAC computation even if incorrrect 3825 block cipher padding has been found. This is a countermeasure 3826 against active attacks where the attacker has to distinguish 3827 between bad padding and a MAC verification error. (CVE-2003-0078) 3828 3829 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 3830 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 3831 Martin Vuagnoux (EPFL, Ilion)] 3832 3833 *) Make the no-err option work as intended. The intention with no-err 3834 is not to have the whole error stack handling routines removed from 3835 libcrypto, it's only intended to remove all the function name and 3836 reason texts, thereby removing some of the footprint that may not 3837 be interesting if those errors aren't displayed anyway. 3838 3839 NOTE: it's still possible for any application or module to have it's 3840 own set of error texts inserted. The routines are there, just not 3841 used by default when no-err is given. 3842 [Richard Levitte] 3843 3844 *) Add support for FreeBSD on IA64. 3845 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 3846 3847 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 3848 Kerberos function mit_des_cbc_cksum(). Before this change, 3849 the value returned by DES_cbc_cksum() was like the one from 3850 mit_des_cbc_cksum(), except the bytes were swapped. 3851 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 3852 3853 *) Allow an application to disable the automatic SSL chain building. 3854 Before this a rather primitive chain build was always performed in 3855 ssl3_output_cert_chain(): an application had no way to send the 3856 correct chain if the automatic operation produced an incorrect result. 3857 3858 Now the chain builder is disabled if either: 3859 3860 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 3861 3862 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 3863 3864 The reasoning behind this is that an application would not want the 3865 auto chain building to take place if extra chain certificates are 3866 present and it might also want a means of sending no additional 3867 certificates (for example the chain has two certificates and the 3868 root is omitted). 3869 [Steve Henson] 3870 3871 *) Add the possibility to build without the ENGINE framework. 3872 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 3873 3874 *) Under Win32 gmtime() can return NULL: check return value in 3875 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 3876 [Steve Henson] 3877 3878 *) DSA routines: under certain error conditions uninitialized BN objects 3879 could be freed. Solution: make sure initialization is performed early 3880 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 3881 Nils Larsch <nla@trustcenter.de> via PR#459) 3882 [Lutz Jaenicke] 3883 3884 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 3885 checked on reconnect on the client side, therefore session resumption 3886 could still fail with a "ssl session id is different" error. This 3887 behaviour is masked when SSL_OP_ALL is used due to 3888 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 3889 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 3890 followup to PR #377. 3891 [Lutz Jaenicke] 3892 3893 *) IA-32 assembler support enhancements: unified ELF targets, support 3894 for SCO/Caldera platforms, fix for Cygwin shared build. 3895 [Andy Polyakov] 3896 3897 *) Add support for FreeBSD on sparc64. As a consequence, support for 3898 FreeBSD on non-x86 processors is separate from x86 processors on 3899 the config script, much like the NetBSD support. 3900 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 3901 3902 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 3903 3904 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 3905 OpenSSL 0.9.7.] 3906 3907 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 3908 code (06) was taken as the first octet of the session ID and the last 3909 octet was ignored consequently. As a result SSLv2 client side session 3910 caching could not have worked due to the session ID mismatch between 3911 client and server. 3912 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 3913 PR #377. 3914 [Lutz Jaenicke] 3915 3916 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 3917 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 3918 removed entirely. 3919 [Richard Levitte] 3920 3921 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 3922 seems that in spite of existing for more than a year, many application 3923 author have done nothing to provide the necessary callbacks, which 3924 means that this particular engine will not work properly anywhere. 3925 This is a very unfortunate situation which forces us, in the name 3926 of usability, to give the hw_ncipher.c a static lock, which is part 3927 of libcrypto. 3928 NOTE: This is for the 0.9.7 series ONLY. This hack will never 3929 appear in 0.9.8 or later. We EXPECT application authors to have 3930 dealt properly with this when 0.9.8 is released (unless we actually 3931 make such changes in the libcrypto locking code that changes will 3932 have to be made anyway). 3933 [Richard Levitte] 3934 3935 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 3936 octets have been read, EOF or an error occurs. Without this change 3937 some truncated ASN1 structures will not produce an error. 3938 [Steve Henson] 3939 3940 *) Disable Heimdal support, since it hasn't been fully implemented. 3941 Still give the possibility to force the use of Heimdal, but with 3942 warnings and a request that patches get sent to openssl-dev. 3943 [Richard Levitte] 3944 3945 *) Add the VC-CE target, introduce the WINCE sysname, and add 3946 INSTALL.WCE and appropriate conditionals to make it build. 3947 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 3948 3949 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 3950 cygssl-x.y.z.dll, where x, y and z are the major, minor and 3951 edit numbers of the version. 3952 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 3953 3954 *) Introduce safe string copy and catenation functions 3955 (BUF_strlcpy() and BUF_strlcat()). 3956 [Ben Laurie (CHATS) and Richard Levitte] 3957 3958 *) Avoid using fixed-size buffers for one-line DNs. 3959 [Ben Laurie (CHATS)] 3960 3961 *) Add BUF_MEM_grow_clean() to avoid information leakage when 3962 resizing buffers containing secrets, and use where appropriate. 3963 [Ben Laurie (CHATS)] 3964 3965 *) Avoid using fixed size buffers for configuration file location. 3966 [Ben Laurie (CHATS)] 3967 3968 *) Avoid filename truncation for various CA files. 3969 [Ben Laurie (CHATS)] 3970 3971 *) Use sizeof in preference to magic numbers. 3972 [Ben Laurie (CHATS)] 3973 3974 *) Avoid filename truncation in cert requests. 3975 [Ben Laurie (CHATS)] 3976 3977 *) Add assertions to check for (supposedly impossible) buffer 3978 overflows. 3979 [Ben Laurie (CHATS)] 3980 3981 *) Don't cache truncated DNS entries in the local cache (this could 3982 potentially lead to a spoofing attack). 3983 [Ben Laurie (CHATS)] 3984 3985 *) Fix various buffers to be large enough for hex/decimal 3986 representations in a platform independent manner. 3987 [Ben Laurie (CHATS)] 3988 3989 *) Add CRYPTO_realloc_clean() to avoid information leakage when 3990 resizing buffers containing secrets, and use where appropriate. 3991 [Ben Laurie (CHATS)] 3992 3993 *) Add BIO_indent() to avoid much slightly worrying code to do 3994 indents. 3995 [Ben Laurie (CHATS)] 3996 3997 *) Convert sprintf()/BIO_puts() to BIO_printf(). 3998 [Ben Laurie (CHATS)] 3999 4000 *) buffer_gets() could terminate with the buffer only half 4001 full. Fixed. 4002 [Ben Laurie (CHATS)] 4003 4004 *) Add assertions to prevent user-supplied crypto functions from 4005 overflowing internal buffers by having large block sizes, etc. 4006 [Ben Laurie (CHATS)] 4007 4008 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4009 unconditionally). 4010 [Ben Laurie (CHATS)] 4011 4012 *) Eliminate unused copy of key in RC4. 4013 [Ben Laurie (CHATS)] 4014 4015 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4016 [Ben Laurie (CHATS)] 4017 4018 *) Fix off-by-one error in EGD path. 4019 [Ben Laurie (CHATS)] 4020 4021 *) If RANDFILE path is too long, ignore instead of truncating. 4022 [Ben Laurie (CHATS)] 4023 4024 *) Eliminate unused and incorrectly sized X.509 structure 4025 CBCParameter. 4026 [Ben Laurie (CHATS)] 4027 4028 *) Eliminate unused and dangerous function knumber(). 4029 [Ben Laurie (CHATS)] 4030 4031 *) Eliminate unused and dangerous structure, KSSL_ERR. 4032 [Ben Laurie (CHATS)] 4033 4034 *) Protect against overlong session ID context length in an encoded 4035 session object. Since these are local, this does not appear to be 4036 exploitable. 4037 [Ben Laurie (CHATS)] 4038 4039 *) Change from security patch (see 0.9.6e below) that did not affect 4040 the 0.9.6 release series: 4041 4042 Remote buffer overflow in SSL3 protocol - an attacker could 4043 supply an oversized master key in Kerberos-enabled versions. 4044 (CVE-2002-0657) 4045 [Ben Laurie (CHATS)] 4046 4047 *) Change the SSL kerb5 codes to match RFC 2712. 4048 [Richard Levitte] 4049 4050 *) Make -nameopt work fully for req and add -reqopt switch. 4051 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4052 4053 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4054 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4055 4056 *) Make sure tests can be performed even if the corresponding algorithms 4057 have been removed entirely. This was also the last step to make 4058 OpenSSL compilable with DJGPP under all reasonable conditions. 4059 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4060 4061 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4062 to allow version independent disabling of normally unselected ciphers, 4063 which may be activated as a side-effect of selecting a single cipher. 4064 4065 (E.g., cipher list string "RSA" enables ciphersuites that are left 4066 out of "ALL" because they do not provide symmetric encryption. 4067 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4068 [Lutz Jaenicke, Bodo Moeller] 4069 4070 *) Add appropriate support for separate platform-dependent build 4071 directories. The recommended way to make a platform-dependent 4072 build directory is the following (tested on Linux), maybe with 4073 some local tweaks: 4074 4075 # Place yourself outside of the OpenSSL source tree. In 4076 # this example, the environment variable OPENSSL_SOURCE 4077 # is assumed to contain the absolute OpenSSL source directory. 4078 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4079 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4080 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4081 mkdir -p `dirname $F` 4082 ln -s $OPENSSL_SOURCE/$F $F 4083 done 4084 4085 To be absolutely sure not to disturb the source tree, a "make clean" 4086 is a good thing. If it isn't successfull, don't worry about it, 4087 it probably means the source directory is very clean. 4088 [Richard Levitte] 4089 4090 *) Make sure any ENGINE control commands make local copies of string 4091 pointers passed to them whenever necessary. Otherwise it is possible 4092 the caller may have overwritten (or deallocated) the original string 4093 data when a later ENGINE operation tries to use the stored values. 4094 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4095 4096 *) Improve diagnostics in file reading and command-line digests. 4097 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4098 4099 *) Add AES modes CFB and OFB to the object database. Correct an 4100 error in AES-CFB decryption. 4101 [Richard Levitte] 4102 4103 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4104 allows existing EVP_CIPHER_CTX structures to be reused after 4105 calling EVP_*Final(). This behaviour is used by encryption 4106 BIOs and some applications. This has the side effect that 4107 applications must explicitly clean up cipher contexts with 4108 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4109 [Steve Henson] 4110 4111 *) Check the values of dna and dnb in bn_mul_recursive before calling 4112 bn_mul_comba (a non zero value means the a or b arrays do not contain 4113 n2 elements) and fallback to bn_mul_normal if either is not zero. 4114 [Steve Henson] 4115 4116 *) Fix escaping of non-ASCII characters when using the -subj option 4117 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4118 [Lutz Jaenicke] 4119 4120 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4121 form for "surname", serialNumber has no short form. 4122 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4123 therefore remove "mail" short name for "internet 7". 4124 The OID for unique identifiers in X509 certificates is 4125 x500UniqueIdentifier, not uniqueIdentifier. 4126 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4127 [Lutz Jaenicke] 4128 4129 *) Add an "init" command to the ENGINE config module and auto initialize 4130 ENGINEs. Without any "init" command the ENGINE will be initialized 4131 after all ctrl commands have been executed on it. If init=1 the 4132 ENGINE is initailized at that point (ctrls before that point are run 4133 on the uninitialized ENGINE and after on the initialized one). If 4134 init=0 then the ENGINE will not be iniatialized at all. 4135 [Steve Henson] 4136 4137 *) Fix the 'app_verify_callback' interface so that the user-defined 4138 argument is actually passed to the callback: In the 4139 SSL_CTX_set_cert_verify_callback() prototype, the callback 4140 declaration has been changed from 4141 int (*cb)() 4142 into 4143 int (*cb)(X509_STORE_CTX *,void *); 4144 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4145 i=s->ctx->app_verify_callback(&ctx) 4146 has been changed into 4147 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4148 4149 To update applications using SSL_CTX_set_cert_verify_callback(), 4150 a dummy argument can be added to their callback functions. 4151 [D. K. Smetters <smetters@parc.xerox.com>] 4152 4153 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4154 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4155 4156 *) Add and OPENSSL_LOAD_CONF define which will cause 4157 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4158 This allows older applications to transparently support certain 4159 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4160 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4161 load the config file and OPENSSL_add_all_algorithms_conf() which will 4162 always load it have also been added. 4163 [Steve Henson] 4164 4165 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4166 Adjust NIDs and EVP layer. 4167 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4168 4169 *) Config modules support in openssl utility. 4170 4171 Most commands now load modules from the config file, 4172 though in a few (such as version) this isn't done 4173 because it couldn't be used for anything. 4174 4175 In the case of ca and req the config file used is 4176 the same as the utility itself: that is the -config 4177 command line option can be used to specify an 4178 alternative file. 4179 [Steve Henson] 4180 4181 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4182 use "openssl_conf" if filename is NULL use default openssl config file. 4183 [Steve Henson] 4184 4185 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4186 config section name. Add a new flag to tolerate a missing config file 4187 and move code to CONF_modules_load_file(). 4188 [Steve Henson] 4189 4190 *) Support for crypto accelerator cards from Accelerated Encryption 4191 Processing, www.aep.ie. (Use engine 'aep') 4192 The support was copied from 0.9.6c [engine] and adapted/corrected 4193 to work with the new engine framework. 4194 [AEP Inc. and Richard Levitte] 4195 4196 *) Support for SureWare crypto accelerator cards from Baltimore 4197 Technologies. (Use engine 'sureware') 4198 The support was copied from 0.9.6c [engine] and adapted 4199 to work with the new engine framework. 4200 [Richard Levitte] 4201 4202 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4203 make the newer ENGINE framework commands for the CHIL engine work. 4204 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4205 4206 *) Make it possible to produce shared libraries on ReliantUNIX. 4207 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4208 4209 *) Add the configuration target debug-linux-ppro. 4210 Make 'openssl rsa' use the general key loading routines 4211 implemented in apps.c, and make those routines able to 4212 handle the key format FORMAT_NETSCAPE and the variant 4213 FORMAT_IISSGC. 4214 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4215 4216 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4217 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4218 4219 *) Add -keyform to rsautl, and document -engine. 4220 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4221 4222 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4223 BIO_R_NO_SUCH_FILE error code rather than the generic 4224 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4225 [Ben Laurie] 4226 4227 *) Add new functions 4228 ERR_peek_last_error 4229 ERR_peek_last_error_line 4230 ERR_peek_last_error_line_data. 4231 These are similar to 4232 ERR_peek_error 4233 ERR_peek_error_line 4234 ERR_peek_error_line_data, 4235 but report on the latest error recorded rather than the first one 4236 still in the error queue. 4237 [Ben Laurie, Bodo Moeller] 4238 4239 *) default_algorithms option in ENGINE config module. This allows things 4240 like: 4241 default_algorithms = ALL 4242 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4243 [Steve Henson] 4244 4245 *) Prelminary ENGINE config module. 4246 [Steve Henson] 4247 4248 *) New experimental application configuration code. 4249 [Steve Henson] 4250 4251 *) Change the AES code to follow the same name structure as all other 4252 symmetric ciphers, and behave the same way. Move everything to 4253 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4254 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4255 4256 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4257 [Ben Laurie and Theo de Raadt] 4258 4259 *) Add option to output public keys in req command. 4260 [Massimiliano Pala madwolf@openca.org] 4261 4262 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4263 (up to about 10% better than before for P-192 and P-224). 4264 [Bodo Moeller] 4265 4266 *) New functions/macros 4267 4268 SSL_CTX_set_msg_callback(ctx, cb) 4269 SSL_CTX_set_msg_callback_arg(ctx, arg) 4270 SSL_set_msg_callback(ssl, cb) 4271 SSL_set_msg_callback_arg(ssl, arg) 4272 4273 to request calling a callback function 4274 4275 void cb(int write_p, int version, int content_type, 4276 const void *buf, size_t len, SSL *ssl, void *arg) 4277 4278 whenever a protocol message has been completely received 4279 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4280 protocol version according to which the SSL library interprets 4281 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4282 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4283 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4284 specification (change_cipher_spec(20), alert(21), handshake(22)). 4285 'buf' and 'len' point to the actual message, 'ssl' to the 4286 SSL object, and 'arg' is the application-defined value set by 4287 SSL[_CTX]_set_msg_callback_arg(). 4288 4289 'openssl s_client' and 'openssl s_server' have new '-msg' options 4290 to enable a callback that displays all protocol messages. 4291 [Bodo Moeller] 4292 4293 *) Change the shared library support so shared libraries are built as 4294 soon as the corresponding static library is finished, and thereby get 4295 openssl and the test programs linked against the shared library. 4296 This still only happens when the keyword "shard" has been given to 4297 the configuration scripts. 4298 4299 NOTE: shared library support is still an experimental thing, and 4300 backward binary compatibility is still not guaranteed. 4301 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4302 4303 *) Add support for Subject Information Access extension. 4304 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4305 4306 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4307 additional bytes when new memory had to be allocated, not just 4308 when reusing an existing buffer. 4309 [Bodo Moeller] 4310 4311 *) New command line and configuration option 'utf8' for the req command. 4312 This allows field values to be specified as UTF8 strings. 4313 [Steve Henson] 4314 4315 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4316 runs for the former and machine-readable output for the latter. 4317 [Ben Laurie] 4318 4319 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4320 of the e-mail address in the DN (i.e., it will go into a certificate 4321 extension only). The new configuration file option 'email_in_dn = no' 4322 has the same effect. 4323 [Massimiliano Pala madwolf@openca.org] 4324 4325 *) Change all functions with names starting with des_ to be starting 4326 with DES_ instead. Add wrappers that are compatible with libdes, 4327 but are named _ossl_old_des_*. Finally, add macros that map the 4328 des_* symbols to the corresponding _ossl_old_des_* if libdes 4329 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4330 desired, the des_* symbols will be mapped to DES_*, with one 4331 exception. 4332 4333 Since we provide two compatibility mappings, the user needs to 4334 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4335 compatibility is desired. The default (i.e., when that macro 4336 isn't defined) is OpenSSL 0.9.6c compatibility. 4337 4338 There are also macros that enable and disable the support of old 4339 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4340 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4341 are defined, the default will apply: to support the old des routines. 4342 4343 In either case, one must include openssl/des.h to get the correct 4344 definitions. Do not try to just include openssl/des_old.h, that 4345 won't work. 4346 4347 NOTE: This is a major break of an old API into a new one. Software 4348 authors are encouraged to switch to the DES_ style functions. Some 4349 time in the future, des_old.h and the libdes compatibility functions 4350 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4351 default), and then completely removed. 4352 [Richard Levitte] 4353 4354 *) Test for certificates which contain unsupported critical extensions. 4355 If such a certificate is found during a verify operation it is 4356 rejected by default: this behaviour can be overridden by either 4357 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4358 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4359 X509_supported_extension() has also been added which returns 1 if a 4360 particular extension is supported. 4361 [Steve Henson] 4362 4363 *) Modify the behaviour of EVP cipher functions in similar way to digests 4364 to retain compatibility with existing code. 4365 [Steve Henson] 4366 4367 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4368 compatibility with existing code. In particular the 'ctx' parameter does 4369 not have to be to be initialized before the call to EVP_DigestInit() and 4370 it is tidied up after a call to EVP_DigestFinal(). New function 4371 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4372 EVP_MD_CTX_copy() changed to not require the destination to be 4373 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4374 requires the destination to be valid. 4375 4376 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4377 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4378 [Steve Henson] 4379 4380 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4381 so that complete 'Handshake' protocol structures are kept in memory 4382 instead of overwriting 'msg_type' and 'length' with 'body' data. 4383 [Bodo Moeller] 4384 4385 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4386 [Massimo Santin via Richard Levitte] 4387 4388 *) Major restructuring to the underlying ENGINE code. This includes 4389 reduction of linker bloat, separation of pure "ENGINE" manipulation 4390 (initialisation, etc) from functionality dealing with implementations 4391 of specific crypto iterfaces. This change also introduces integrated 4392 support for symmetric ciphers and digest implementations - so ENGINEs 4393 can now accelerate these by providing EVP_CIPHER and EVP_MD 4394 implementations of their own. This is detailed in crypto/engine/README 4395 as it couldn't be adequately described here. However, there are a few 4396 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4397 were changed in the original introduction of ENGINE code have now 4398 reverted back - the hooking from this code to ENGINE is now a good 4399 deal more passive and at run-time, operations deal directly with 4400 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4401 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4402 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4403 they were not being used by the framework as there is no concept of a 4404 BIGNUM_METHOD and they could not be generalised to the new 4405 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4406 ENGINE_cpy() has been removed as it cannot be consistently defined in 4407 the new code. 4408 [Geoff Thorpe] 4409 4410 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4411 [Steve Henson] 4412 4413 *) Change mkdef.pl to sort symbols that get the same entry number, 4414 and make sure the automatically generated functions ERR_load_* 4415 become part of libeay.num as well. 4416 [Richard Levitte] 4417 4418 *) New function SSL_renegotiate_pending(). This returns true once 4419 renegotiation has been requested (either SSL_renegotiate() call 4420 or HelloRequest/ClientHello receveived from the peer) and becomes 4421 false once a handshake has been completed. 4422 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4423 sends a HelloRequest, but does not ensure that a handshake takes 4424 place. SSL_renegotiate_pending() is useful for checking if the 4425 client has followed the request.) 4426 [Bodo Moeller] 4427 4428 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4429 By default, clients may request session resumption even during 4430 renegotiation (if session ID contexts permit); with this option, 4431 session resumption is possible only in the first handshake. 4432 4433 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4434 more bits available for options that should not be part of 4435 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4436 [Bodo Moeller] 4437 4438 *) Add some demos for certificate and certificate request creation. 4439 [Steve Henson] 4440 4441 *) Make maximum certificate chain size accepted from the peer application 4442 settable (SSL*_get/set_max_cert_list()), as proposed by 4443 "Douglas E. Engert" <deengert@anl.gov>. 4444 [Lutz Jaenicke] 4445 4446 *) Add support for shared libraries for Unixware-7 4447 (Boyd Lynn Gerber <gerberb@zenez.com>). 4448 [Lutz Jaenicke] 4449 4450 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4451 be done prior to destruction. Use this to unload error strings from 4452 ENGINEs that load their own error strings. NB: This adds two new API 4453 functions to "get" and "set" this destroy handler in an ENGINE. 4454 [Geoff Thorpe] 4455 4456 *) Alter all existing ENGINE implementations (except "openssl" and 4457 "openbsd") to dynamically instantiate their own error strings. This 4458 makes them more flexible to be built both as statically-linked ENGINEs 4459 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4460 Also, add stub code to each that makes building them as self-contained 4461 shared-libraries easier (see README.ENGINE). 4462 [Geoff Thorpe] 4463 4464 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4465 implementations into applications that are completely implemented in 4466 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4467 commands that can be used to configure what shared-library to load and 4468 to control aspects of the way it is handled. Also, made an update to 4469 the README.ENGINE file that brings its information up-to-date and 4470 provides some information and instructions on the "dynamic" ENGINE 4471 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4472 [Geoff Thorpe] 4473 4474 *) Make it possible to unload ranges of ERR strings with a new 4475 "ERR_unload_strings" function. 4476 [Geoff Thorpe] 4477 4478 *) Add a copy() function to EVP_MD. 4479 [Ben Laurie] 4480 4481 *) Make EVP_MD routines take a context pointer instead of just the 4482 md_data void pointer. 4483 [Ben Laurie] 4484 4485 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4486 that the digest can only process a single chunk of data 4487 (typically because it is provided by a piece of 4488 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4489 is only going to provide a single chunk of data, and hence the 4490 framework needn't accumulate the data for oneshot drivers. 4491 [Ben Laurie] 4492 4493 *) As with "ERR", make it possible to replace the underlying "ex_data" 4494 functions. This change also alters the storage and management of global 4495 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4496 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4497 index counters. The API functions that use this state have been changed 4498 to take a "class_index" rather than pointers to the class's local STACK 4499 and counter, and there is now an API function to dynamically create new 4500 classes. This centralisation allows us to (a) plug a lot of the 4501 thread-safety problems that existed, and (b) makes it possible to clean 4502 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4503 such data would previously have always leaked in application code and 4504 workarounds were in place to make the memory debugging turn a blind eye 4505 to it. Application code that doesn't use this new function will still 4506 leak as before, but their memory debugging output will announce it now 4507 rather than letting it slide. 4508 4509 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4510 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4511 has a return value to indicate success or failure. 4512 [Geoff Thorpe] 4513 4514 *) Make it possible to replace the underlying "ERR" functions such that the 4515 global state (2 LHASH tables and 2 locks) is only used by the "default" 4516 implementation. This change also adds two functions to "get" and "set" 4517 the implementation prior to it being automatically set the first time 4518 any other ERR function takes place. Ie. an application can call "get", 4519 pass the return value to a module it has just loaded, and that module 4520 can call its own "set" function using that value. This means the 4521 module's "ERR" operations will use (and modify) the error state in the 4522 application and not in its own statically linked copy of OpenSSL code. 4523 [Geoff Thorpe] 4524 4525 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4526 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4527 the operation, and provides a more encapsulated way for external code 4528 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4529 to use these functions rather than manually incrementing the counts. 4530 4531 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4532 [Geoff Thorpe] 4533 4534 *) Add EVP test program. 4535 [Ben Laurie] 4536 4537 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4538 [Ben Laurie] 4539 4540 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4541 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4542 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4543 These allow a CRL to be built without having to access X509_CRL fields 4544 directly. Modify 'ca' application to use new functions. 4545 [Steve Henson] 4546 4547 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4548 bug workarounds. Rollback attack detection is a security feature. 4549 The problem will only arise on OpenSSL servers when TLSv1 is not 4550 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4551 Software authors not wanting to support TLSv1 will have special reasons 4552 for their choice and can explicitly enable this option. 4553 [Bodo Moeller, Lutz Jaenicke] 4554 4555 *) Rationalise EVP so it can be extended: don't include a union of 4556 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4557 (similar to those existing for EVP_CIPHER_CTX). 4558 Usage example: 4559 4560 EVP_MD_CTX md; 4561 4562 EVP_MD_CTX_init(&md); /* new function call */ 4563 EVP_DigestInit(&md, EVP_sha1()); 4564 EVP_DigestUpdate(&md, in, len); 4565 EVP_DigestFinal(&md, out, NULL); 4566 EVP_MD_CTX_cleanup(&md); /* new function call */ 4567 4568 [Ben Laurie] 4569 4570 *) Make DES key schedule conform to the usual scheme, as well as 4571 correcting its structure. This means that calls to DES functions 4572 now have to pass a pointer to a des_key_schedule instead of a 4573 plain des_key_schedule (which was actually always a pointer 4574 anyway): E.g., 4575 4576 des_key_schedule ks; 4577 4578 des_set_key_checked(..., &ks); 4579 des_ncbc_encrypt(..., &ks, ...); 4580 4581 (Note that a later change renames 'des_...' into 'DES_...'.) 4582 [Ben Laurie] 4583 4584 *) Initial reduction of linker bloat: the use of some functions, such as 4585 PEM causes large amounts of unused functions to be linked in due to 4586 poor organisation. For example pem_all.c contains every PEM function 4587 which has a knock on effect of linking in large amounts of (unused) 4588 ASN1 code. Grouping together similar functions and splitting unrelated 4589 functions prevents this. 4590 [Steve Henson] 4591 4592 *) Cleanup of EVP macros. 4593 [Ben Laurie] 4594 4595 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4596 correct _ecb suffix. 4597 [Ben Laurie] 4598 4599 *) Add initial OCSP responder support to ocsp application. The 4600 revocation information is handled using the text based index 4601 use by the ca application. The responder can either handle 4602 requests generated internally, supplied in files (for example 4603 via a CGI script) or using an internal minimal server. 4604 [Steve Henson] 4605 4606 *) Add configuration choices to get zlib compression for TLS. 4607 [Richard Levitte] 4608 4609 *) Changes to Kerberos SSL for RFC 2712 compliance: 4610 1. Implemented real KerberosWrapper, instead of just using 4611 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4612 2. Implemented optional authenticator field of KerberosWrapper. 4613 4614 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4615 and authenticator structs; see crypto/krb5/. 4616 4617 Generalized Kerberos calls to support multiple Kerberos libraries. 4618 [Vern Staats <staatsvr@asc.hpc.mil>, 4619 Jeffrey Altman <jaltman@columbia.edu> 4620 via Richard Levitte] 4621 4622 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4623 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4624 values for each of the key sizes rather than having just 4625 parameters (and 'speed' generating keys each time). 4626 [Geoff Thorpe] 4627 4628 *) Speed up EVP routines. 4629 Before: 4630encrypt 4631type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4632des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4633des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4634des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4635decrypt 4636des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4637des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4638des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4639 After: 4640encrypt 4641des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4642decrypt 4643des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4644 [Ben Laurie] 4645 4646 *) Added the OS2-EMX target. 4647 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4648 4649 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4650 to support NCONF routines in extension code. New function CONF_set_nconf() 4651 to allow functions which take an NCONF to also handle the old LHASH 4652 structure: this means that the old CONF compatible routines can be 4653 retained (in particular wrt extensions) without having to duplicate the 4654 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4655 [Steve Henson] 4656 4657 *) Enhance the general user interface with mechanisms for inner control 4658 and with possibilities to have yes/no kind of prompts. 4659 [Richard Levitte] 4660 4661 *) Change all calls to low level digest routines in the library and 4662 applications to use EVP. Add missing calls to HMAC_cleanup() and 4663 don't assume HMAC_CTX can be copied using memcpy(). 4664 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4665 4666 *) Add the possibility to control engines through control names but with 4667 arbitrary arguments instead of just a string. 4668 Change the key loaders to take a UI_METHOD instead of a callback 4669 function pointer. NOTE: this breaks binary compatibility with earlier 4670 versions of OpenSSL [engine]. 4671 Adapt the nCipher code for these new conditions and add a card insertion 4672 callback. 4673 [Richard Levitte] 4674 4675 *) Enhance the general user interface with mechanisms to better support 4676 dialog box interfaces, application-defined prompts, the possibility 4677 to use defaults (for example default passwords from somewhere else) 4678 and interrupts/cancellations. 4679 [Richard Levitte] 4680 4681 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4682 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4683 [Steve Henson] 4684 4685 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4686 tidy up some unnecessarily weird code in 'sk_new()'). 4687 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4688 4689 *) Change the key loading routines for ENGINEs to use the same kind 4690 callback (pem_password_cb) as all other routines that need this 4691 kind of callback. 4692 [Richard Levitte] 4693 4694 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4695 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4696 than this minimum value is recommended. 4697 [Lutz Jaenicke] 4698 4699 *) New random seeder for OpenVMS, using the system process statistics 4700 that are easily reachable. 4701 [Richard Levitte] 4702 4703 *) Windows apparently can't transparently handle global 4704 variables defined in DLLs. Initialisations such as: 4705 4706 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4707 4708 wont compile. This is used by the any applications that need to 4709 declare their own ASN1 modules. This was fixed by adding the option 4710 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4711 needed for static libraries under Win32. 4712 [Steve Henson] 4713 4714 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4715 setting of purpose and trust fields. New X509_STORE trust and 4716 purpose functions and tidy up setting in other SSL functions. 4717 [Steve Henson] 4718 4719 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4720 structure. These are inherited by X509_STORE_CTX when it is 4721 initialised. This allows various defaults to be set in the 4722 X509_STORE structure (such as flags for CRL checking and custom 4723 purpose or trust settings) for functions which only use X509_STORE_CTX 4724 internally such as S/MIME. 4725 4726 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4727 trust settings if they are not set in X509_STORE. This allows X509_STORE 4728 purposes and trust (in S/MIME for example) to override any set by default. 4729 4730 Add command line options for CRL checking to smime, s_client and s_server 4731 applications. 4732 [Steve Henson] 4733 4734 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4735 are set then the CRL is looked up in the X509_STORE structure and 4736 its validity and signature checked, then if the certificate is found 4737 in the CRL the verify fails with a revoked error. 4738 4739 Various new CRL related callbacks added to X509_STORE_CTX structure. 4740 4741 Command line options added to 'verify' application to support this. 4742 4743 This needs some additional work, such as being able to handle multiple 4744 CRLs with different times, extension based lookup (rather than just 4745 by subject name) and ultimately more complete V2 CRL extension 4746 handling. 4747 [Steve Henson] 4748 4749 *) Add a general user interface API (crypto/ui/). This is designed 4750 to replace things like des_read_password and friends (backward 4751 compatibility functions using this new API are provided). 4752 The purpose is to remove prompting functions from the DES code 4753 section as well as provide for prompting through dialog boxes in 4754 a window system and the like. 4755 [Richard Levitte] 4756 4757 *) Add "ex_data" support to ENGINE so implementations can add state at a 4758 per-structure level rather than having to store it globally. 4759 [Geoff] 4760 4761 *) Make it possible for ENGINE structures to be copied when retrieved by 4762 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4763 This causes the "original" ENGINE structure to act like a template, 4764 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4765 operational state can be localised to each ENGINE structure, despite the 4766 fact they all share the same "methods". New ENGINE structures returned in 4767 this case have no functional references and the return value is the single 4768 structural reference. This matches the single structural reference returned 4769 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4770 ENGINE structure. 4771 [Geoff] 4772 4773 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4774 needs to match any other type at all we need to manually clear the 4775 tag cache. 4776 [Steve Henson] 4777 4778 *) Changes to the "openssl engine" utility to include; 4779 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4780 about an ENGINE's available control commands. 4781 - executing control commands from command line arguments using the 4782 '-pre' and '-post' switches. '-post' is only used if '-t' is 4783 specified and the ENGINE is successfully initialised. The syntax for 4784 the individual commands are colon-separated, for example; 4785 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4786 [Geoff] 4787 4788 *) New dynamic control command support for ENGINEs. ENGINEs can now 4789 declare their own commands (numbers), names (strings), descriptions, 4790 and input types for run-time discovery by calling applications. A 4791 subset of these commands are implicitly classed as "executable" 4792 depending on their input type, and only these can be invoked through 4793 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 4794 can be based on user input, config files, etc). The distinction is 4795 that "executable" commands cannot return anything other than a boolean 4796 result and can only support numeric or string input, whereas some 4797 discoverable commands may only be for direct use through 4798 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 4799 pointers, or other custom uses. The "executable" commands are to 4800 support parameterisations of ENGINE behaviour that can be 4801 unambiguously defined by ENGINEs and used consistently across any 4802 OpenSSL-based application. Commands have been added to all the 4803 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 4804 control over shared-library paths without source code alterations. 4805 [Geoff] 4806 4807 *) Changed all ENGINE implementations to dynamically allocate their 4808 ENGINEs rather than declaring them statically. Apart from this being 4809 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 4810 this also allows the implementations to compile without using the 4811 internal engine_int.h header. 4812 [Geoff] 4813 4814 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 4815 'const' value. Any code that should be able to modify a RAND_METHOD 4816 should already have non-const pointers to it (ie. they should only 4817 modify their own ones). 4818 [Geoff] 4819 4820 *) Made a variety of little tweaks to the ENGINE code. 4821 - "atalla" and "ubsec" string definitions were moved from header files 4822 to C code. "nuron" string definitions were placed in variables 4823 rather than hard-coded - allowing parameterisation of these values 4824 later on via ctrl() commands. 4825 - Removed unused "#if 0"'d code. 4826 - Fixed engine list iteration code so it uses ENGINE_free() to release 4827 structural references. 4828 - Constified the RAND_METHOD element of ENGINE structures. 4829 - Constified various get/set functions as appropriate and added 4830 missing functions (including a catch-all ENGINE_cpy that duplicates 4831 all ENGINE values onto a new ENGINE except reference counts/state). 4832 - Removed NULL parameter checks in get/set functions. Setting a method 4833 or function to NULL is a way of cancelling out a previously set 4834 value. Passing a NULL ENGINE parameter is just plain stupid anyway 4835 and doesn't justify the extra error symbols and code. 4836 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 4837 flags from engine_int.h to engine.h. 4838 - Changed prototypes for ENGINE handler functions (init(), finish(), 4839 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 4840 [Geoff] 4841 4842 *) Implement binary inversion algorithm for BN_mod_inverse in addition 4843 to the algorithm using long division. The binary algorithm can be 4844 used only if the modulus is odd. On 32-bit systems, it is faster 4845 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 4846 roughly 5-15% for 256-bit moduli), so we use it only for moduli 4847 up to 450 bits. In 64-bit environments, the binary algorithm 4848 appears to be advantageous for much longer moduli; here we use it 4849 for moduli up to 2048 bits. 4850 [Bodo Moeller] 4851 4852 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 4853 could not support the combine flag in choice fields. 4854 [Steve Henson] 4855 4856 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 4857 extensions from a certificate request to the certificate. 4858 [Steve Henson] 4859 4860 *) Allow multiple 'certopt' and 'nameopt' options to be separated 4861 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 4862 file: this allows the display of the certificate about to be 4863 signed to be customised, to allow certain fields to be included 4864 or excluded and extension details. The old system didn't display 4865 multicharacter strings properly, omitted fields not in the policy 4866 and couldn't display additional details such as extensions. 4867 [Steve Henson] 4868 4869 *) Function EC_POINTs_mul for multiple scalar multiplication 4870 of an arbitrary number of elliptic curve points 4871 \sum scalars[i]*points[i], 4872 optionally including the generator defined for the EC_GROUP: 4873 scalar*generator + \sum scalars[i]*points[i]. 4874 4875 EC_POINT_mul is a simple wrapper function for the typical case 4876 that the point list has just one item (besides the optional 4877 generator). 4878 [Bodo Moeller] 4879 4880 *) First EC_METHODs for curves over GF(p): 4881 4882 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 4883 operations and provides various method functions that can also 4884 operate with faster implementations of modular arithmetic. 4885 4886 EC_GFp_mont_method() reuses most functions that are part of 4887 EC_GFp_simple_method, but uses Montgomery arithmetic. 4888 4889 [Bodo Moeller; point addition and point doubling 4890 implementation directly derived from source code provided by 4891 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 4892 4893 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 4894 crypto/ec/ec_lib.c): 4895 4896 Curves are EC_GROUP objects (with an optional group generator) 4897 based on EC_METHODs that are built into the library. 4898 4899 Points are EC_POINT objects based on EC_GROUP objects. 4900 4901 Most of the framework would be able to handle curves over arbitrary 4902 finite fields, but as there are no obvious types for fields other 4903 than GF(p), some functions are limited to that for now. 4904 [Bodo Moeller] 4905 4906 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 4907 that the file contains a complete HTTP response. 4908 [Richard Levitte] 4909 4910 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 4911 change the def and num file printf format specifier from "%-40sXXX" 4912 to "%-39s XXX". The latter will always guarantee a space after the 4913 field while the former will cause them to run together if the field 4914 is 40 of more characters long. 4915 [Steve Henson] 4916 4917 *) Constify the cipher and digest 'method' functions and structures 4918 and modify related functions to take constant EVP_MD and EVP_CIPHER 4919 pointers. 4920 [Steve Henson] 4921 4922 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 4923 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 4924 [Bodo Moeller] 4925 4926 *) Modify EVP_Digest*() routines so they now return values. Although the 4927 internal software routines can never fail additional hardware versions 4928 might. 4929 [Steve Henson] 4930 4931 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 4932 4933 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 4934 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 4935 4936 ASN1 error codes 4937 ERR_R_NESTED_ASN1_ERROR 4938 ... 4939 ERR_R_MISSING_ASN1_EOS 4940 were 4 .. 9, conflicting with 4941 ERR_LIB_RSA (= ERR_R_RSA_LIB) 4942 ... 4943 ERR_LIB_PEM (= ERR_R_PEM_LIB). 4944 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 4945 4946 Add new error code 'ERR_R_INTERNAL_ERROR'. 4947 [Bodo Moeller] 4948 4949 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 4950 suffices. 4951 [Bodo Moeller] 4952 4953 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 4954 sets the subject name for a new request or supersedes the 4955 subject name in a given request. Formats that can be parsed are 4956 'CN=Some Name, OU=myOU, C=IT' 4957 and 4958 'CN=Some Name/OU=myOU/C=IT'. 4959 4960 Add options '-batch' and '-verbose' to 'openssl req'. 4961 [Massimiliano Pala <madwolf@hackmasters.net>] 4962 4963 *) Introduce the possibility to access global variables through 4964 functions on platform were that's the best way to handle exporting 4965 global variables in shared libraries. To enable this functionality, 4966 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 4967 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 4968 is normally done by Configure or something similar). 4969 4970 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 4971 in the source file (foo.c) like this: 4972 4973 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 4974 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 4975 4976 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 4977 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 4978 4979 OPENSSL_DECLARE_GLOBAL(int,foo); 4980 #define foo OPENSSL_GLOBAL_REF(foo) 4981 OPENSSL_DECLARE_GLOBAL(double,bar); 4982 #define bar OPENSSL_GLOBAL_REF(bar) 4983 4984 The #defines are very important, and therefore so is including the 4985 header file everywhere where the defined globals are used. 4986 4987 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 4988 of ASN.1 items, but that structure is a bit different. 4989 4990 The largest change is in util/mkdef.pl which has been enhanced with 4991 better and easier to understand logic to choose which symbols should 4992 go into the Windows .def files as well as a number of fixes and code 4993 cleanup (among others, algorithm keywords are now sorted 4994 lexicographically to avoid constant rewrites). 4995 [Richard Levitte] 4996 4997 *) In BN_div() keep a copy of the sign of 'num' before writing the 4998 result to 'rm' because if rm==num the value will be overwritten 4999 and produce the wrong result if 'num' is negative: this caused 5000 problems with BN_mod() and BN_nnmod(). 5001 [Steve Henson] 5002 5003 *) Function OCSP_request_verify(). This checks the signature on an 5004 OCSP request and verifies the signer certificate. The signer 5005 certificate is just checked for a generic purpose and OCSP request 5006 trust settings. 5007 [Steve Henson] 5008 5009 *) Add OCSP_check_validity() function to check the validity of OCSP 5010 responses. OCSP responses are prepared in real time and may only 5011 be a few seconds old. Simply checking that the current time lies 5012 between thisUpdate and nextUpdate max reject otherwise valid responses 5013 caused by either OCSP responder or client clock inaccuracy. Instead 5014 we allow thisUpdate and nextUpdate to fall within a certain period of 5015 the current time. The age of the response can also optionally be 5016 checked. Two new options -validity_period and -status_age added to 5017 ocsp utility. 5018 [Steve Henson] 5019 5020 *) If signature or public key algorithm is unrecognized print out its 5021 OID rather that just UNKNOWN. 5022 [Steve Henson] 5023 5024 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5025 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5026 ID to be generated from the issuer certificate alone which can then be 5027 passed to OCSP_id_issuer_cmp(). 5028 [Steve Henson] 5029 5030 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5031 ASN1 modules to export functions returning ASN1_ITEM pointers 5032 instead of the ASN1_ITEM structures themselves. This adds several 5033 new macros which allow the underlying ASN1 function/structure to 5034 be accessed transparently. As a result code should not use ASN1_ITEM 5035 references directly (such as &X509_it) but instead use the relevant 5036 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5037 use of the new ASN1 code on platforms where exporting structures 5038 is problematical (for example in shared libraries) but exporting 5039 functions returning pointers to structures is not. 5040 [Steve Henson] 5041 5042 *) Add support for overriding the generation of SSL/TLS session IDs. 5043 These callbacks can be registered either in an SSL_CTX or per SSL. 5044 The purpose of this is to allow applications to control, if they wish, 5045 the arbitrary values chosen for use as session IDs, particularly as it 5046 can be useful for session caching in multiple-server environments. A 5047 command-line switch for testing this (and any client code that wishes 5048 to use such a feature) has been added to "s_server". 5049 [Geoff Thorpe, Lutz Jaenicke] 5050 5051 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5052 of the form '#if defined(...) || defined(...) || ...' and 5053 '#if !defined(...) && !defined(...) && ...'. This also avoids 5054 the growing number of special cases it was previously handling. 5055 [Richard Levitte] 5056 5057 *) Make all configuration macros available for application by making 5058 sure they are available in opensslconf.h, by giving them names starting 5059 with "OPENSSL_" to avoid conflicts with other packages and by making 5060 sure e_os2.h will cover all platform-specific cases together with 5061 opensslconf.h. 5062 Additionally, it is now possible to define configuration/platform- 5063 specific names (called "system identities"). In the C code, these 5064 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5065 macro with the name beginning with "OPENSSL_SYS_", which is determined 5066 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5067 what is available. 5068 [Richard Levitte] 5069 5070 *) New option -set_serial to 'req' and 'x509' this allows the serial 5071 number to use to be specified on the command line. Previously self 5072 signed certificates were hard coded with serial number 0 and the 5073 CA options of 'x509' had to use a serial number in a file which was 5074 auto incremented. 5075 [Steve Henson] 5076 5077 *) New options to 'ca' utility to support V2 CRL entry extensions. 5078 Currently CRL reason, invalidity date and hold instruction are 5079 supported. Add new CRL extensions to V3 code and some new objects. 5080 [Steve Henson] 5081 5082 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5083 disable standard block padding (aka PKCS#5 padding) in the EVP 5084 API, which was previously mandatory. This means that the data is 5085 not padded in any way and so the total length much be a multiple 5086 of the block size, otherwise an error occurs. 5087 [Steve Henson] 5088 5089 *) Initial (incomplete) OCSP SSL support. 5090 [Steve Henson] 5091 5092 *) New function OCSP_parse_url(). This splits up a URL into its host, 5093 port and path components: primarily to parse OCSP URLs. New -url 5094 option to ocsp utility. 5095 [Steve Henson] 5096 5097 *) New nonce behavior. The return value of OCSP_check_nonce() now 5098 reflects the various checks performed. Applications can decide 5099 whether to tolerate certain situations such as an absent nonce 5100 in a response when one was present in a request: the ocsp application 5101 just prints out a warning. New function OCSP_add1_basic_nonce() 5102 this is to allow responders to include a nonce in a response even if 5103 the request is nonce-less. 5104 [Steve Henson] 5105 5106 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5107 skipped when using openssl x509 multiple times on a single input file, 5108 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5109 [Bodo Moeller] 5110 5111 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5112 set string type: to handle setting ASN1_TIME structures. Fix ca 5113 utility to correctly initialize revocation date of CRLs. 5114 [Steve Henson] 5115 5116 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5117 the clients preferred ciphersuites and rather use its own preferences. 5118 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5119 Internet Explorer by ensuring unchanged hash method during stepup. 5120 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5121 [Lutz Jaenicke] 5122 5123 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5124 to aes and add a new 'exist' option to print out symbols that don't 5125 appear to exist. 5126 [Steve Henson] 5127 5128 *) Additional options to ocsp utility to allow flags to be set and 5129 additional certificates supplied. 5130 [Steve Henson] 5131 5132 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5133 OCSP client a number of certificate to only verify the response 5134 signature against. 5135 [Richard Levitte] 5136 5137 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5138 handle the new API. Currently only ECB, CBC modes supported. Add new 5139 AES OIDs. 5140 5141 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5142 Encryption Standard (AES) Ciphersuites for Transport Layer 5143 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5144 not enabled by default and were not part of the "ALL" ciphersuite 5145 alias because they were not yet official; they could be 5146 explicitly requested by specifying the "AESdraft" ciphersuite 5147 group alias. In the final release of OpenSSL 0.9.7, the group 5148 alias is called "AES" and is part of "ALL".) 5149 [Ben Laurie, Steve Henson, Bodo Moeller] 5150 5151 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5152 request to response. 5153 [Steve Henson] 5154 5155 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5156 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5157 extract information from a certificate request. OCSP_response_create() 5158 creates a response and optionally adds a basic response structure. 5159 OCSP_basic_add1_status() adds a complete single response to a basic 5160 response and returns the OCSP_SINGLERESP structure just added (to allow 5161 extensions to be included for example). OCSP_basic_add1_cert() adds a 5162 certificate to a basic response and OCSP_basic_sign() signs a basic 5163 response with various flags. New helper functions ASN1_TIME_check() 5164 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5165 (converts ASN1_TIME to GeneralizedTime). 5166 [Steve Henson] 5167 5168 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5169 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5170 structure from a certificate. X509_pubkey_digest() digests the public_key 5171 contents: this is used in various key identifiers. 5172 [Steve Henson] 5173 5174 *) Make sk_sort() tolerate a NULL argument. 5175 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5176 5177 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5178 passed by the function are trusted implicitly. If any of them signed the 5179 response then it is assumed to be valid and is not verified. 5180 [Steve Henson] 5181 5182 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5183 to data. This was previously part of the PKCS7 ASN1 code. This 5184 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5185 [Steve Henson, reported by Kenneth R. Robinette 5186 <support@securenetterm.com>] 5187 5188 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5189 routines: without these tracing memory leaks is very painful. 5190 Fix leaks in PKCS12 and PKCS7 routines. 5191 [Steve Henson] 5192 5193 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5194 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5195 effectively meant GeneralizedTime would never be used. Now it 5196 is initialised to -1 but X509_time_adj() now has to check the value 5197 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5198 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5199 [Steve Henson, reported by Kenneth R. Robinette 5200 <support@securenetterm.com>] 5201 5202 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5203 result in a zero length in the ASN1_INTEGER structure which was 5204 not consistent with the structure when d2i_ASN1_INTEGER() was used 5205 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5206 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5207 where it did not print out a minus for negative ASN1_INTEGER. 5208 [Steve Henson] 5209 5210 *) Add summary printout to ocsp utility. The various functions which 5211 convert status values to strings have been renamed to: 5212 OCSP_response_status_str(), OCSP_cert_status_str() and 5213 OCSP_crl_reason_str() and are no longer static. New options 5214 to verify nonce values and to disable verification. OCSP response 5215 printout format cleaned up. 5216 [Steve Henson] 5217 5218 *) Add additional OCSP certificate checks. These are those specified 5219 in RFC2560. This consists of two separate checks: the CA of the 5220 certificate being checked must either be the OCSP signer certificate 5221 or the issuer of the OCSP signer certificate. In the latter case the 5222 OCSP signer certificate must contain the OCSP signing extended key 5223 usage. This check is performed by attempting to match the OCSP 5224 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5225 in the OCSP_CERTID structures of the response. 5226 [Steve Henson] 5227 5228 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5229 and related routines. This uses the standard OpenSSL certificate 5230 verify routines to perform initial checks (just CA validity) and 5231 to obtain the certificate chain. Then additional checks will be 5232 performed on the chain. Currently the root CA is checked to see 5233 if it is explicitly trusted for OCSP signing. This is used to set 5234 a root CA as a global signing root: that is any certificate that 5235 chains to that CA is an acceptable OCSP signing certificate. 5236 [Steve Henson] 5237 5238 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5239 extensions from a separate configuration file. 5240 As when reading extensions from the main configuration file, 5241 the '-extensions ...' option may be used for specifying the 5242 section to use. 5243 [Massimiliano Pala <madwolf@comune.modena.it>] 5244 5245 *) New OCSP utility. Allows OCSP requests to be generated or 5246 read. The request can be sent to a responder and the output 5247 parsed, outputed or printed in text form. Not complete yet: 5248 still needs to check the OCSP response validity. 5249 [Steve Henson] 5250 5251 *) New subcommands for 'openssl ca': 5252 'openssl ca -status <serial>' prints the status of the cert with 5253 the given serial number (according to the index file). 5254 'openssl ca -updatedb' updates the expiry status of certificates 5255 in the index file. 5256 [Massimiliano Pala <madwolf@comune.modena.it>] 5257 5258 *) New '-newreq-nodes' command option to CA.pl. This is like 5259 '-newreq', but calls 'openssl req' with the '-nodes' option 5260 so that the resulting key is not encrypted. 5261 [Damien Miller <djm@mindrot.org>] 5262 5263 *) New configuration for the GNU Hurd. 5264 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5265 5266 *) Initial code to implement OCSP basic response verify. This 5267 is currently incomplete. Currently just finds the signer's 5268 certificate and verifies the signature on the response. 5269 [Steve Henson] 5270 5271 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5272 value of OPENSSLDIR. This is available via the new '-d' option 5273 to 'openssl version', and is also included in 'openssl version -a'. 5274 [Bodo Moeller] 5275 5276 *) Allowing defining memory allocation callbacks that will be given 5277 file name and line number information in additional arguments 5278 (a const char* and an int). The basic functionality remains, as 5279 well as the original possibility to just replace malloc(), 5280 realloc() and free() by functions that do not know about these 5281 additional arguments. To register and find out the current 5282 settings for extended allocation functions, the following 5283 functions are provided: 5284 5285 CRYPTO_set_mem_ex_functions 5286 CRYPTO_set_locked_mem_ex_functions 5287 CRYPTO_get_mem_ex_functions 5288 CRYPTO_get_locked_mem_ex_functions 5289 5290 These work the same way as CRYPTO_set_mem_functions and friends. 5291 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5292 extended allocation function is enabled. 5293 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5294 a conventional allocation function is enabled. 5295 [Richard Levitte, Bodo Moeller] 5296 5297 *) Finish off removing the remaining LHASH function pointer casts. 5298 There should no longer be any prototype-casting required when using 5299 the LHASH abstraction, and any casts that remain are "bugs". See 5300 the callback types and macros at the head of lhash.h for details 5301 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5302 [Geoff Thorpe] 5303 5304 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5305 If /dev/[u]random devices are not available or do not return enough 5306 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5307 be queried. 5308 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5309 /etc/entropy will be queried once each in this sequence, quering stops 5310 when enough entropy was collected without querying more sockets. 5311 [Lutz Jaenicke] 5312 5313 *) Change the Unix RAND_poll() variant to be able to poll several 5314 random devices, as specified by DEVRANDOM, until a sufficient amount 5315 of data has been collected. We spend at most 10 ms on each file 5316 (select timeout) and read in non-blocking mode. DEVRANDOM now 5317 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5318 (previously it was just the string "/dev/urandom"), so on typical 5319 platforms the 10 ms delay will never occur. 5320 Also separate out the Unix variant to its own file, rand_unix.c. 5321 For VMS, there's a currently-empty rand_vms.c. 5322 [Richard Levitte] 5323 5324 *) Move OCSP client related routines to ocsp_cl.c. These 5325 provide utility functions which an application needing 5326 to issue a request to an OCSP responder and analyse the 5327 response will typically need: as opposed to those which an 5328 OCSP responder itself would need which will be added later. 5329 5330 OCSP_request_sign() signs an OCSP request with an API similar 5331 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5332 response. OCSP_response_get1_basic() extracts basic response 5333 from response. OCSP_resp_find_status(): finds and extracts status 5334 information from an OCSP_CERTID structure (which will be created 5335 when the request structure is built). These are built from lower 5336 level functions which work on OCSP_SINGLERESP structures but 5337 wont normally be used unless the application wishes to examine 5338 extensions in the OCSP response for example. 5339 5340 Replace nonce routines with a pair of functions. 5341 OCSP_request_add1_nonce() adds a nonce value and optionally 5342 generates a random value. OCSP_check_nonce() checks the 5343 validity of the nonce in an OCSP response. 5344 [Steve Henson] 5345 5346 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5347 This doesn't copy the supplied OCSP_CERTID and avoids the 5348 need to free up the newly created id. Change return type 5349 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5350 This can then be used to add extensions to the request. 5351 Deleted OCSP_request_new(), since most of its functionality 5352 is now in OCSP_REQUEST_new() (and the case insensitive name 5353 clash) apart from the ability to set the request name which 5354 will be added elsewhere. 5355 [Steve Henson] 5356 5357 *) Update OCSP API. Remove obsolete extensions argument from 5358 various functions. Extensions are now handled using the new 5359 OCSP extension code. New simple OCSP HTTP function which 5360 can be used to send requests and parse the response. 5361 [Steve Henson] 5362 5363 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5364 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5365 uses the special reorder version of SET OF to sort the attributes 5366 and reorder them to match the encoded order. This resolves a long 5367 standing problem: a verify on a PKCS7 structure just after signing 5368 it used to fail because the attribute order did not match the 5369 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5370 it uses the received order. This is necessary to tolerate some broken 5371 software that does not order SET OF. This is handled by encoding 5372 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5373 to produce the required SET OF. 5374 [Steve Henson] 5375 5376 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5377 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5378 files to get correct declarations of the ASN.1 item variables. 5379 [Richard Levitte] 5380 5381 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5382 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5383 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5384 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5385 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5386 ASN1_ITEM and no wrapper functions. 5387 [Steve Henson] 5388 5389 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5390 replace the old function pointer based I/O routines. Change most of 5391 the *_d2i_bio() and *_d2i_fp() functions to use these. 5392 [Steve Henson] 5393 5394 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5395 lines, recognice more "algorithms" that can be deselected, and make 5396 it complain about algorithm deselection that isn't recognised. 5397 [Richard Levitte] 5398 5399 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5400 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5401 to use new functions. Add NO_ASN1_OLD which can be set to remove 5402 some old style ASN1 functions: this can be used to determine if old 5403 code will still work when these eventually go away. 5404 [Steve Henson] 5405 5406 *) New extension functions for OCSP structures, these follow the 5407 same conventions as certificates and CRLs. 5408 [Steve Henson] 5409 5410 *) New function X509V3_add1_i2d(). This automatically encodes and 5411 adds an extension. Its behaviour can be customised with various 5412 flags to append, replace or delete. Various wrappers added for 5413 certifcates and CRLs. 5414 [Steve Henson] 5415 5416 *) Fix to avoid calling the underlying ASN1 print routine when 5417 an extension cannot be parsed. Correct a typo in the 5418 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5419 [Steve Henson] 5420 5421 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5422 entries for variables. 5423 [Steve Henson] 5424 5425 *) Add functionality to apps/openssl.c for detecting locking 5426 problems: As the program is single-threaded, all we have 5427 to do is register a locking callback using an array for 5428 storing which locks are currently held by the program. 5429 [Bodo Moeller] 5430 5431 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5432 SSL_get_ex_data_X509_STORE_idx(), which is used in 5433 ssl_verify_cert_chain() and thus can be called at any time 5434 during TLS/SSL handshakes so that thread-safety is essential. 5435 Unfortunately, the ex_data design is not at all suited 5436 for multi-threaded use, so it probably should be abolished. 5437 [Bodo Moeller] 5438 5439 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5440 [Broadcom, tweaked and integrated by Geoff Thorpe] 5441 5442 *) Move common extension printing code to new function 5443 X509V3_print_extensions(). Reorganise OCSP print routines and 5444 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5445 [Steve Henson] 5446 5447 *) New function X509_signature_print() to remove duplication in some 5448 print routines. 5449 [Steve Henson] 5450 5451 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5452 set (this was treated exactly the same as SET OF previously). This 5453 is used to reorder the STACK representing the structure to match the 5454 encoding. This will be used to get round a problem where a PKCS7 5455 structure which was signed could not be verified because the STACK 5456 order did not reflect the encoded order. 5457 [Steve Henson] 5458 5459 *) Reimplement the OCSP ASN1 module using the new code. 5460 [Steve Henson] 5461 5462 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5463 for its ASN1 operations. The old style function pointers still exist 5464 for now but they will eventually go away. 5465 [Steve Henson] 5466 5467 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5468 completely replaces the old ASN1 functionality with a table driven 5469 encoder and decoder which interprets an ASN1_ITEM structure describing 5470 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5471 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5472 has also been converted to the new form. 5473 [Steve Henson] 5474 5475 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5476 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5477 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5478 for negative moduli. 5479 [Bodo Moeller] 5480 5481 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5482 of not touching the result's sign bit. 5483 [Bodo Moeller] 5484 5485 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5486 set. 5487 [Bodo Moeller] 5488 5489 *) Changed the LHASH code to use prototypes for callbacks, and created 5490 macros to declare and implement thin (optionally static) functions 5491 that provide type-safety and avoid function pointer casting for the 5492 type-specific callbacks. 5493 [Geoff Thorpe] 5494 5495 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5496 RFC 2712. 5497 [Veers Staats <staatsvr@asc.hpc.mil>, 5498 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5499 5500 *) Reformat the FAQ so the different questions and answers can be divided 5501 in sections depending on the subject. 5502 [Richard Levitte] 5503 5504 *) Have the zlib compression code load ZLIB.DLL dynamically under 5505 Windows. 5506 [Richard Levitte] 5507 5508 *) New function BN_mod_sqrt for computing square roots modulo a prime 5509 (using the probabilistic Tonelli-Shanks algorithm unless 5510 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5511 be handled deterministically). 5512 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5513 5514 *) Make BN_mod_inverse faster by explicitly handling small quotients 5515 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5516 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5517 [Bodo Moeller] 5518 5519 *) New function BN_kronecker. 5520 [Bodo Moeller] 5521 5522 *) Fix BN_gcd so that it works on negative inputs; the result is 5523 positive unless both parameters are zero. 5524 Previously something reasonably close to an infinite loop was 5525 possible because numbers could be growing instead of shrinking 5526 in the implementation of Euclid's algorithm. 5527 [Bodo Moeller] 5528 5529 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5530 sign of the number in question. 5531 5532 Fix BN_is_word(a,w) to work correctly for w == 0. 5533 5534 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5535 because its test if the absolute value of 'a' equals 'w'. 5536 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5537 it exists mostly for use in the implementations of BN_is_zero(), 5538 BN_is_one(), and BN_is_word(). 5539 [Bodo Moeller] 5540 5541 *) New function BN_swap. 5542 [Bodo Moeller] 5543 5544 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5545 the exponentiation functions are more likely to produce reasonable 5546 results on negative inputs. 5547 [Bodo Moeller] 5548 5549 *) Change BN_mod_mul so that the result is always non-negative. 5550 Previously, it could be negative if one of the factors was negative; 5551 I don't think anyone really wanted that behaviour. 5552 [Bodo Moeller] 5553 5554 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5555 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5556 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5557 and add new functions: 5558 5559 BN_nnmod 5560 BN_mod_sqr 5561 BN_mod_add 5562 BN_mod_add_quick 5563 BN_mod_sub 5564 BN_mod_sub_quick 5565 BN_mod_lshift1 5566 BN_mod_lshift1_quick 5567 BN_mod_lshift 5568 BN_mod_lshift_quick 5569 5570 These functions always generate non-negative results. 5571 5572 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5573 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5574 5575 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5576 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5577 be reduced modulo m. 5578 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5579 5580#if 0 5581 The following entry accidentily appeared in the CHANGES file 5582 distributed with OpenSSL 0.9.7. The modifications described in 5583 it do *not* apply to OpenSSL 0.9.7. 5584 5585 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5586 was actually never needed) and in BN_mul(). The removal in BN_mul() 5587 required a small change in bn_mul_part_recursive() and the addition 5588 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5589 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5590 bn_sub_words() and bn_add_words() except they take arrays with 5591 differing sizes. 5592 [Richard Levitte] 5593#endif 5594 5595 *) In 'openssl passwd', verify passwords read from the terminal 5596 unless the '-salt' option is used (which usually means that 5597 verification would just waste user's time since the resulting 5598 hash is going to be compared with some given password hash) 5599 or the new '-noverify' option is used. 5600 5601 This is an incompatible change, but it does not affect 5602 non-interactive use of 'openssl passwd' (passwords on the command 5603 line, '-stdin' option, '-in ...' option) and thus should not 5604 cause any problems. 5605 [Bodo Moeller] 5606 5607 *) Remove all references to RSAref, since there's no more need for it. 5608 [Richard Levitte] 5609 5610 *) Make DSO load along a path given through an environment variable 5611 (SHLIB_PATH) with shl_load(). 5612 [Richard Levitte] 5613 5614 *) Constify the ENGINE code as a result of BIGNUM constification. 5615 Also constify the RSA code and most things related to it. In a 5616 few places, most notable in the depth of the ASN.1 code, ugly 5617 casts back to non-const were required (to be solved at a later 5618 time) 5619 [Richard Levitte] 5620 5621 *) Make it so the openssl application has all engines loaded by default. 5622 [Richard Levitte] 5623 5624 *) Constify the BIGNUM routines a little more. 5625 [Richard Levitte] 5626 5627 *) Add the following functions: 5628 5629 ENGINE_load_cswift() 5630 ENGINE_load_chil() 5631 ENGINE_load_atalla() 5632 ENGINE_load_nuron() 5633 ENGINE_load_builtin_engines() 5634 5635 That way, an application can itself choose if external engines that 5636 are built-in in OpenSSL shall ever be used or not. The benefit is 5637 that applications won't have to be linked with libdl or other dso 5638 libraries unless it's really needed. 5639 5640 Changed 'openssl engine' to load all engines on demand. 5641 Changed the engine header files to avoid the duplication of some 5642 declarations (they differed!). 5643 [Richard Levitte] 5644 5645 *) 'openssl engine' can now list capabilities. 5646 [Richard Levitte] 5647 5648 *) Better error reporting in 'openssl engine'. 5649 [Richard Levitte] 5650 5651 *) Never call load_dh_param(NULL) in s_server. 5652 [Bodo Moeller] 5653 5654 *) Add engine application. It can currently list engines by name and 5655 identity, and test if they are actually available. 5656 [Richard Levitte] 5657 5658 *) Improve RPM specification file by forcing symbolic linking and making 5659 sure the installed documentation is also owned by root.root. 5660 [Damien Miller <djm@mindrot.org>] 5661 5662 *) Give the OpenSSL applications more possibilities to make use of 5663 keys (public as well as private) handled by engines. 5664 [Richard Levitte] 5665 5666 *) Add OCSP code that comes from CertCo. 5667 [Richard Levitte] 5668 5669 *) Add VMS support for the Rijndael code. 5670 [Richard Levitte] 5671 5672 *) Added untested support for Nuron crypto accelerator. 5673 [Ben Laurie] 5674 5675 *) Add support for external cryptographic devices. This code was 5676 previously distributed separately as the "engine" branch. 5677 [Geoff Thorpe, Richard Levitte] 5678 5679 *) Rework the filename-translation in the DSO code. It is now possible to 5680 have far greater control over how a "name" is turned into a filename 5681 depending on the operating environment and any oddities about the 5682 different shared library filenames on each system. 5683 [Geoff Thorpe] 5684 5685 *) Support threads on FreeBSD-elf in Configure. 5686 [Richard Levitte] 5687 5688 *) Fix for SHA1 assembly problem with MASM: it produces 5689 warnings about corrupt line number information when assembling 5690 with debugging information. This is caused by the overlapping 5691 of two sections. 5692 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5693 5694 *) NCONF changes. 5695 NCONF_get_number() has no error checking at all. As a replacement, 5696 NCONF_get_number_e() is defined (_e for "error checking") and is 5697 promoted strongly. The old NCONF_get_number is kept around for 5698 binary backward compatibility. 5699 Make it possible for methods to load from something other than a BIO, 5700 by providing a function pointer that is given a name instead of a BIO. 5701 For example, this could be used to load configuration data from an 5702 LDAP server. 5703 [Richard Levitte] 5704 5705 *) Fix for non blocking accept BIOs. Added new I/O special reason 5706 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5707 with non blocking I/O was not possible because no retry code was 5708 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5709 this case. 5710 [Steve Henson] 5711 5712 *) Added the beginnings of Rijndael support. 5713 [Ben Laurie] 5714 5715 *) Fix for bug in DirectoryString mask setting. Add support for 5716 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5717 to allow certificate printing to more controllable, additional 5718 'certopt' option to 'x509' to allow new printing options to be 5719 set. 5720 [Steve Henson] 5721 5722 *) Clean old EAY MD5 hack from e_os.h. 5723 [Richard Levitte] 5724 5725 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5726 5727 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5728 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5729 [Joe Orton, Steve Henson] 5730 5731 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5732 5733 *) Fix additional bug revealed by the NISCC test suite: 5734 5735 Stop bug triggering large recursion when presented with 5736 certain ASN.1 tags (CVE-2003-0851) 5737 [Steve Henson] 5738 5739 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5740 5741 *) Fix various bugs revealed by running the NISCC test suite: 5742 5743 Stop out of bounds reads in the ASN1 code when presented with 5744 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5745 5746 If verify callback ignores invalid public key errors don't try to check 5747 certificate signature with the NULL public key. 5748 5749 [Steve Henson] 5750 5751 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5752 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5753 specifications. 5754 [Steve Henson] 5755 5756 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5757 extra data after the compression methods not only for TLS 1.0 5758 but also for SSL 3.0 (as required by the specification). 5759 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5760 5761 *) Change X509_certificate_type() to mark the key as exported/exportable 5762 when it's 512 *bits* long, not 512 bytes. 5763 [Richard Levitte] 5764 5765 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5766 5767 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5768 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5769 a protocol version number mismatch like a decryption error 5770 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5771 [Bodo Moeller] 5772 5773 *) Turn on RSA blinding by default in the default implementation 5774 to avoid a timing attack. Applications that don't want it can call 5775 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5776 They would be ill-advised to do so in most cases. 5777 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5778 5779 *) Change RSA blinding code so that it works when the PRNG is not 5780 seeded (in this case, the secret RSA exponent is abused as 5781 an unpredictable seed -- if it is not unpredictable, there 5782 is no point in blinding anyway). Make RSA blinding thread-safe 5783 by remembering the creator's thread ID in rsa->blinding and 5784 having all other threads use local one-time blinding factors 5785 (this requires more computation than sharing rsa->blinding, but 5786 avoids excessive locking; and if an RSA object is not shared 5787 between threads, blinding will still be very fast). 5788 [Bodo Moeller] 5789 5790 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5791 5792 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5793 via timing by performing a MAC computation even if incorrrect 5794 block cipher padding has been found. This is a countermeasure 5795 against active attacks where the attacker has to distinguish 5796 between bad padding and a MAC verification error. (CVE-2003-0078) 5797 5798 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5799 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5800 Martin Vuagnoux (EPFL, Ilion)] 5801 5802 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 5803 5804 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 5805 memory from it's contents. This is done with a counter that will 5806 place alternating values in each byte. This can be used to solve 5807 two issues: 1) the removal of calls to memset() by highly optimizing 5808 compilers, and 2) cleansing with other values than 0, since those can 5809 be read through on certain media, for example a swap space on disk. 5810 [Geoff Thorpe] 5811 5812 *) Bugfix: client side session caching did not work with external caching, 5813 because the session->cipher setting was not restored when reloading 5814 from the external cache. This problem was masked, when 5815 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 5816 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 5817 [Lutz Jaenicke] 5818 5819 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 5820 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 5821 [Zeev Lieber <zeev-l@yahoo.com>] 5822 5823 *) Undo an undocumented change introduced in 0.9.6e which caused 5824 repeated calls to OpenSSL_add_all_ciphers() and 5825 OpenSSL_add_all_digests() to be ignored, even after calling 5826 EVP_cleanup(). 5827 [Richard Levitte] 5828 5829 *) Change the default configuration reader to deal with last line not 5830 being properly terminated. 5831 [Richard Levitte] 5832 5833 *) Change X509_NAME_cmp() so it applies the special rules on handling 5834 DN values that are of type PrintableString, as well as RDNs of type 5835 emailAddress where the value has the type ia5String. 5836 [stefank@valicert.com via Richard Levitte] 5837 5838 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 5839 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 5840 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 5841 the bitwise-OR of the two for use by the majority of applications 5842 wanting this behaviour, and update the docs. The documented 5843 behaviour and actual behaviour were inconsistent and had been 5844 changing anyway, so this is more a bug-fix than a behavioural 5845 change. 5846 [Geoff Thorpe, diagnosed by Nadav Har'El] 5847 5848 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 5849 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 5850 [Bodo Moeller] 5851 5852 *) Fix initialization code race conditions in 5853 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 5854 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 5855 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 5856 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 5857 ssl2_get_cipher_by_char(), 5858 ssl3_get_cipher_by_char(). 5859 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 5860 5861 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 5862 the cached sessions are flushed, as the remove_cb() might use ex_data 5863 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 5864 (see [openssl.org #212]). 5865 [Geoff Thorpe, Lutz Jaenicke] 5866 5867 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 5868 length, instead of the encoding length to d2i_ASN1_OBJECT. 5869 [Steve Henson] 5870 5871 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 5872 5873 *) [In 0.9.6g-engine release:] 5874 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 5875 [Lynn Gazis <lgazis@rainbow.com>] 5876 5877 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 5878 5879 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 5880 and get fix the header length calculation. 5881 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 5882 Alon Kantor <alonk@checkpoint.com> (and others), 5883 Steve Henson] 5884 5885 *) Use proper error handling instead of 'assertions' in buffer 5886 overflow checks added in 0.9.6e. This prevents DoS (the 5887 assertions could call abort()). 5888 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 5889 5890 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 5891 5892 *) Add various sanity checks to asn1_get_length() to reject 5893 the ASN1 length bytes if they exceed sizeof(long), will appear 5894 negative or the content length exceeds the length of the 5895 supplied buffer. 5896 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 5897 5898 *) Fix cipher selection routines: ciphers without encryption had no flags 5899 for the cipher strength set and where therefore not handled correctly 5900 by the selection routines (PR #130). 5901 [Lutz Jaenicke] 5902 5903 *) Fix EVP_dsa_sha macro. 5904 [Nils Larsch] 5905 5906 *) New option 5907 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 5908 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 5909 that was added in OpenSSL 0.9.6d. 5910 5911 As the countermeasure turned out to be incompatible with some 5912 broken SSL implementations, the new option is part of SSL_OP_ALL. 5913 SSL_OP_ALL is usually employed when compatibility with weird SSL 5914 implementations is desired (e.g. '-bugs' option to 's_client' and 5915 's_server'), so the new option is automatically set in many 5916 applications. 5917 [Bodo Moeller] 5918 5919 *) Changes in security patch: 5920 5921 Changes marked "(CHATS)" were sponsored by the Defense Advanced 5922 Research Projects Agency (DARPA) and Air Force Research Laboratory, 5923 Air Force Materiel Command, USAF, under agreement number 5924 F30602-01-2-0537. 5925 5926 *) Add various sanity checks to asn1_get_length() to reject 5927 the ASN1 length bytes if they exceed sizeof(long), will appear 5928 negative or the content length exceeds the length of the 5929 supplied buffer. (CVE-2002-0659) 5930 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 5931 5932 *) Assertions for various potential buffer overflows, not known to 5933 happen in practice. 5934 [Ben Laurie (CHATS)] 5935 5936 *) Various temporary buffers to hold ASCII versions of integers were 5937 too small for 64 bit platforms. (CVE-2002-0655) 5938 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 5939 5940 *) Remote buffer overflow in SSL3 protocol - an attacker could 5941 supply an oversized session ID to a client. (CVE-2002-0656) 5942 [Ben Laurie (CHATS)] 5943 5944 *) Remote buffer overflow in SSL2 protocol - an attacker could 5945 supply an oversized client master key. (CVE-2002-0656) 5946 [Ben Laurie (CHATS)] 5947 5948 Changes between 0.9.6c and 0.9.6d [9 May 2002] 5949 5950 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 5951 encoded as NULL) with id-dsa-with-sha1. 5952 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 5953 5954 *) Check various X509_...() return values in apps/req.c. 5955 [Nils Larsch <nla@trustcenter.de>] 5956 5957 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 5958 an end-of-file condition would erronously be flagged, when the CRLF 5959 was just at the end of a processed block. The bug was discovered when 5960 processing data through a buffering memory BIO handing the data to a 5961 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 5962 <ptsekov@syntrex.com> and Nedelcho Stanev. 5963 [Lutz Jaenicke] 5964 5965 *) Implement a countermeasure against a vulnerability recently found 5966 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 5967 before application data chunks to avoid the use of known IVs 5968 with data potentially chosen by the attacker. 5969 [Bodo Moeller] 5970 5971 *) Fix length checks in ssl3_get_client_hello(). 5972 [Bodo Moeller] 5973 5974 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 5975 to prevent ssl3_read_internal() from incorrectly assuming that 5976 ssl3_read_bytes() found application data while handshake 5977 processing was enabled when in fact s->s3->in_read_app_data was 5978 merely automatically cleared during the initial handshake. 5979 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 5980 5981 *) Fix object definitions for Private and Enterprise: they were not 5982 recognized in their shortname (=lowercase) representation. Extend 5983 obj_dat.pl to issue an error when using undefined keywords instead 5984 of silently ignoring the problem (Svenning Sorensen 5985 <sss@sss.dnsalias.net>). 5986 [Lutz Jaenicke] 5987 5988 *) Fix DH_generate_parameters() so that it works for 'non-standard' 5989 generators, i.e. generators other than 2 and 5. (Previously, the 5990 code did not properly initialise the 'add' and 'rem' values to 5991 BN_generate_prime().) 5992 5993 In the new general case, we do not insist that 'generator' is 5994 actually a primitive root: This requirement is rather pointless; 5995 a generator of the order-q subgroup is just as good, if not 5996 better. 5997 [Bodo Moeller] 5998 5999 *) Map new X509 verification errors to alerts. Discovered and submitted by 6000 Tom Wu <tom@arcot.com>. 6001 [Lutz Jaenicke] 6002 6003 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6004 returning non-zero before the data has been completely received 6005 when using non-blocking I/O. 6006 [Bodo Moeller; problem pointed out by John Hughes] 6007 6008 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6009 [Ben Laurie, Lutz Jaenicke] 6010 6011 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6012 Yoram Zahavi <YoramZ@gilian.com>). 6013 [Lutz Jaenicke] 6014 6015 *) Add information about CygWin 1.3 and on, and preserve proper 6016 configuration for the versions before that. 6017 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6018 6019 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6020 check whether we deal with a copy of a session and do not delete from 6021 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6022 <izhar@checkpoint.com>. 6023 [Lutz Jaenicke] 6024 6025 *) Do not store session data into the internal session cache, if it 6026 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6027 flag is set). Proposed by Aslam <aslam@funk.com>. 6028 [Lutz Jaenicke] 6029 6030 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6031 value is 0. 6032 [Richard Levitte] 6033 6034 *) [In 0.9.6d-engine release:] 6035 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6036 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6037 6038 *) Add the configuration target linux-s390x. 6039 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6040 6041 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6042 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6043 variable as an indication that a ClientHello message has been 6044 received. As the flag value will be lost between multiple 6045 invocations of ssl3_accept when using non-blocking I/O, the 6046 function may not be aware that a handshake has actually taken 6047 place, thus preventing a new session from being added to the 6048 session cache. 6049 6050 To avoid this problem, we now set s->new_session to 2 instead of 6051 using a local variable. 6052 [Lutz Jaenicke, Bodo Moeller] 6053 6054 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6055 if the SSL_R_LENGTH_MISMATCH error is detected. 6056 [Geoff Thorpe, Bodo Moeller] 6057 6058 *) New 'shared_ldflag' column in Configure platform table. 6059 [Richard Levitte] 6060 6061 *) Fix EVP_CIPHER_mode macro. 6062 ["Dan S. Camper" <dan@bti.net>] 6063 6064 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6065 type, we must throw them away by setting rr->length to 0. 6066 [D P Chang <dpc@qualys.com>] 6067 6068 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6069 6070 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6071 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6072 worked incorrectly for those cases where range = 10..._2 and 6073 3*range is two bits longer than range.) 6074 [Bodo Moeller] 6075 6076 *) Only add signing time to PKCS7 structures if it is not already 6077 present. 6078 [Steve Henson] 6079 6080 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6081 OBJ_ld_ce should be OBJ_id_ce. 6082 Also some ip-pda OIDs in crypto/objects/objects.txt were 6083 incorrect (cf. RFC 3039). 6084 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6085 6086 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6087 returns early because it has nothing to do. 6088 [Andy Schneider <andy.schneider@bjss.co.uk>] 6089 6090 *) [In 0.9.6c-engine release:] 6091 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6092 [Andy Schneider <andy.schneider@bjss.co.uk>] 6093 6094 *) [In 0.9.6c-engine release:] 6095 Add support for Cryptographic Appliance's keyserver technology. 6096 (Use engine 'keyclient') 6097 [Cryptographic Appliances and Geoff Thorpe] 6098 6099 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6100 is called via tools/c89.sh because arguments have to be 6101 rearranged (all '-L' options must appear before the first object 6102 modules). 6103 [Richard Shapiro <rshapiro@abinitio.com>] 6104 6105 *) [In 0.9.6c-engine release:] 6106 Add support for Broadcom crypto accelerator cards, backported 6107 from 0.9.7. 6108 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6109 6110 *) [In 0.9.6c-engine release:] 6111 Add support for SureWare crypto accelerator cards from 6112 Baltimore Technologies. (Use engine 'sureware') 6113 [Baltimore Technologies and Mark Cox] 6114 6115 *) [In 0.9.6c-engine release:] 6116 Add support for crypto accelerator cards from Accelerated 6117 Encryption Processing, www.aep.ie. (Use engine 'aep') 6118 [AEP Inc. and Mark Cox] 6119 6120 *) Add a configuration entry for gcc on UnixWare. 6121 [Gary Benson <gbenson@redhat.com>] 6122 6123 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6124 messages are stored in a single piece (fixed-length part and 6125 variable-length part combined) and fix various bugs found on the way. 6126 [Bodo Moeller] 6127 6128 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6129 instead. BIO_gethostbyname() does not know what timeouts are 6130 appropriate, so entries would stay in cache even when they have 6131 become invalid. 6132 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6133 6134 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6135 faced with a pathologically small ClientHello fragment that does 6136 not contain client_version: Instead of aborting with an error, 6137 simply choose the highest available protocol version (i.e., 6138 TLS 1.0 unless it is disabled). In practice, ClientHello 6139 messages are never sent like this, but this change gives us 6140 strictly correct behaviour at least for TLS. 6141 [Bodo Moeller] 6142 6143 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6144 never resets s->method to s->ctx->method when called from within 6145 one of the SSL handshake functions. 6146 [Bodo Moeller; problem pointed out by Niko Baric] 6147 6148 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6149 (sent using the client's version number) if client_version is 6150 smaller than the protocol version in use. Also change 6151 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6152 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6153 the client will at least see that alert. 6154 [Bodo Moeller] 6155 6156 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6157 correctly. 6158 [Bodo Moeller] 6159 6160 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6161 client receives HelloRequest while in a handshake. 6162 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6163 6164 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6165 should end in 'break', not 'goto end' which circuments various 6166 cleanups done in state SSL_ST_OK. But session related stuff 6167 must be disabled for SSL_ST_OK in the case that we just sent a 6168 HelloRequest. 6169 6170 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6171 before just sending a HelloRequest. 6172 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6173 6174 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6175 reveal whether illegal block cipher padding was found or a MAC 6176 verification error occured. (Neither SSLerr() codes nor alerts 6177 are directly visible to potential attackers, but the information 6178 may leak via logfiles.) 6179 6180 Similar changes are not required for the SSL 2.0 implementation 6181 because the number of padding bytes is sent in clear for SSL 2.0, 6182 and the extra bytes are just ignored. However ssl/s2_pkt.c 6183 failed to verify that the purported number of padding bytes is in 6184 the legal range. 6185 [Bodo Moeller] 6186 6187 *) Add OpenUNIX-8 support including shared libraries 6188 (Boyd Lynn Gerber <gerberb@zenez.com>). 6189 [Lutz Jaenicke] 6190 6191 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6192 'wristwatch attack' using huge encoding parameters (cf. 6193 James H. Manger's CRYPTO 2001 paper). Note that the 6194 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6195 encoding parameters and hence was not vulnerable. 6196 [Bodo Moeller] 6197 6198 *) BN_sqr() bug fix. 6199 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6200 6201 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6202 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6203 followed by modular reduction. 6204 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6205 6206 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6207 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6208 [Bodo Moeller] 6209 6210 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6211 This function was broken, as the check for a new client hello message 6212 to handle SGC did not allow these large messages. 6213 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6214 [Lutz Jaenicke] 6215 6216 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6217 [Lutz Jaenicke] 6218 6219 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6220 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6221 [Lutz Jaenicke] 6222 6223 *) Rework the configuration and shared library support for Tru64 Unix. 6224 The configuration part makes use of modern compiler features and 6225 still retains old compiler behavior for those that run older versions 6226 of the OS. The shared library support part includes a variant that 6227 uses the RPATH feature, and is available through the special 6228 configuration target "alpha-cc-rpath", which will never be selected 6229 automatically. 6230 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6231 6232 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6233 with the same message size as in ssl3_get_certificate_request(). 6234 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6235 messages might inadvertently be reject as too long. 6236 [Petr Lampa <lampa@fee.vutbr.cz>] 6237 6238 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6239 [Andy Polyakov] 6240 6241 *) Modified SSL library such that the verify_callback that has been set 6242 specificly for an SSL object with SSL_set_verify() is actually being 6243 used. Before the change, a verify_callback set with this function was 6244 ignored and the verify_callback() set in the SSL_CTX at the time of 6245 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6246 to allow the necessary settings. 6247 [Lutz Jaenicke] 6248 6249 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6250 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6251 done automatically (in contradiction to the requirements of the C 6252 standard). This made problems when used from OpenSSH. 6253 [Lutz Jaenicke] 6254 6255 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6256 dh->length and always used 6257 6258 BN_rand_range(priv_key, dh->p). 6259 6260 BN_rand_range() is not necessary for Diffie-Hellman, and this 6261 specific range makes Diffie-Hellman unnecessarily inefficient if 6262 dh->length (recommended exponent length) is much smaller than the 6263 length of dh->p. We could use BN_rand_range() if the order of 6264 the subgroup was stored in the DH structure, but we only have 6265 dh->length. 6266 6267 So switch back to 6268 6269 BN_rand(priv_key, l, ...) 6270 6271 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6272 otherwise. 6273 [Bodo Moeller] 6274 6275 *) In 6276 6277 RSA_eay_public_encrypt 6278 RSA_eay_private_decrypt 6279 RSA_eay_private_encrypt (signing) 6280 RSA_eay_public_decrypt (signature verification) 6281 6282 (default implementations for RSA_public_encrypt, 6283 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6284 always reject numbers >= n. 6285 [Bodo Moeller] 6286 6287 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6288 to synchronize access to 'locking_thread'. This is necessary on 6289 systems where access to 'locking_thread' (an 'unsigned long' 6290 variable) is not atomic. 6291 [Bodo Moeller] 6292 6293 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6294 *before* setting the 'crypto_lock_rand' flag. The previous code had 6295 a race condition if 0 is a valid thread ID. 6296 [Travis Vitek <vitek@roguewave.com>] 6297 6298 *) Add support for shared libraries under Irix. 6299 [Albert Chin-A-Young <china@thewrittenword.com>] 6300 6301 *) Add configuration option to build on Linux on both big-endian and 6302 little-endian MIPS. 6303 [Ralf Baechle <ralf@uni-koblenz.de>] 6304 6305 *) Add the possibility to create shared libraries on HP-UX. 6306 [Richard Levitte] 6307 6308 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6309 6310 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6311 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6312 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6313 PRNG state recovery was possible based on the output of 6314 one PRNG request appropriately sized to gain knowledge on 6315 'md' followed by enough consecutive 1-byte PRNG requests 6316 to traverse all of 'state'. 6317 6318 1. When updating 'md_local' (the current thread's copy of 'md') 6319 during PRNG output generation, hash all of the previous 6320 'md_local' value, not just the half used for PRNG output. 6321 6322 2. Make the number of bytes from 'state' included into the hash 6323 independent from the number of PRNG bytes requested. 6324 6325 The first measure alone would be sufficient to avoid 6326 Markku-Juhani's attack. (Actually it had never occurred 6327 to me that the half of 'md_local' used for chaining was the 6328 half from which PRNG output bytes were taken -- I had always 6329 assumed that the secret half would be used.) The second 6330 measure makes sure that additional data from 'state' is never 6331 mixed into 'md_local' in small portions; this heuristically 6332 further strengthens the PRNG. 6333 [Bodo Moeller] 6334 6335 *) Fix crypto/bn/asm/mips3.s. 6336 [Andy Polyakov] 6337 6338 *) When only the key is given to "enc", the IV is undefined. Print out 6339 an error message in this case. 6340 [Lutz Jaenicke] 6341 6342 *) Handle special case when X509_NAME is empty in X509 printing routines. 6343 [Steve Henson] 6344 6345 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6346 positive and less than q. 6347 [Bodo Moeller] 6348 6349 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6350 used: it isn't thread safe and the add_lock_callback should handle 6351 that itself. 6352 [Paul Rose <Paul.Rose@bridge.com>] 6353 6354 *) Verify that incoming data obeys the block size in 6355 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6356 [Bodo Moeller] 6357 6358 *) Fix OAEP check. 6359 [Ulf M�ller, Bodo M�ller] 6360 6361 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6362 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6363 when fixing the server behaviour for backwards-compatible 'client 6364 hello' messages. (Note that the attack is impractical against 6365 SSL 3.0 and TLS 1.0 anyway because length and version checking 6366 means that the probability of guessing a valid ciphertext is 6367 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6368 paper.) 6369 6370 Before 0.9.5, the countermeasure (hide the error by generating a 6371 random 'decryption result') did not work properly because 6372 ERR_clear_error() was missing, meaning that SSL_get_error() would 6373 detect the supposedly ignored error. 6374 6375 Both problems are now fixed. 6376 [Bodo Moeller] 6377 6378 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6379 (previously it was 1024). 6380 [Bodo Moeller] 6381 6382 *) Fix for compatibility mode trust settings: ignore trust settings 6383 unless some valid trust or reject settings are present. 6384 [Steve Henson] 6385 6386 *) Fix for blowfish EVP: its a variable length cipher. 6387 [Steve Henson] 6388 6389 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6390 parameters in DSA public key structures and return an error in the 6391 DSA routines if parameters are absent. 6392 [Steve Henson] 6393 6394 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6395 in the current directory if neither $RANDFILE nor $HOME was set. 6396 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6397 caused some confusion to Windows users who haven't defined $HOME. 6398 Thus RAND_file_name() is changed again: e_os.h can define a 6399 DEFAULT_HOME, which will be used if $HOME is not set. 6400 For Windows, we use "C:"; on other platforms, we still require 6401 environment variables. 6402 6403 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6404 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6405 having multiple threads call RAND_poll() concurrently. 6406 [Bodo Moeller] 6407 6408 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6409 combination of a flag and a thread ID variable. 6410 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6411 flag), *other* threads can enter ssleay_add_bytes without obeying 6412 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6413 that they do not hold after the first thread unsets add_do_not_lock). 6414 [Bodo Moeller] 6415 6416 *) Change bctest again: '-x' expressions are not available in all 6417 versions of 'test'. 6418 [Bodo Moeller] 6419 6420 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6421 6422 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6423 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6424 6425 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6426 the default extension for executables, if any. Also, make the perl 6427 scripts that use symlink() to test if it really exists and use "cp" 6428 if it doesn't. All this made OpenSSL compilable and installable in 6429 CygWin. 6430 [Richard Levitte] 6431 6432 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6433 If SEQUENCE is length is indefinite just set c->slen to the total 6434 amount of data available. 6435 [Steve Henson, reported by shige@FreeBSD.org] 6436 [This change does not apply to 0.9.7.] 6437 6438 *) Change bctest to avoid here-documents inside command substitution 6439 (workaround for FreeBSD /bin/sh bug). 6440 For compatibility with Ultrix, avoid shell functions (introduced 6441 in the bctest version that searches along $PATH). 6442 [Bodo Moeller] 6443 6444 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6445 with des_encrypt() defined on some operating systems, like Solaris 6446 and UnixWare. 6447 [Richard Levitte] 6448 6449 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6450 On the Importance of Eliminating Errors in Cryptographic 6451 Computations, J. Cryptology 14 (2001) 2, 101-119, 6452 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6453 [Ulf Moeller] 6454 6455 *) MIPS assembler BIGNUM division bug fix. 6456 [Andy Polyakov] 6457 6458 *) Disabled incorrect Alpha assembler code. 6459 [Richard Levitte] 6460 6461 *) Fix PKCS#7 decode routines so they correctly update the length 6462 after reading an EOC for the EXPLICIT tag. 6463 [Steve Henson] 6464 [This change does not apply to 0.9.7.] 6465 6466 *) Fix bug in PKCS#12 key generation routines. This was triggered 6467 if a 3DES key was generated with a 0 initial byte. Include 6468 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6469 (but broken) behaviour. 6470 [Steve Henson] 6471 6472 *) Enhance bctest to search for a working bc along $PATH and print 6473 it when found. 6474 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6475 6476 *) Fix memory leaks in err.c: free err_data string if necessary; 6477 don't write to the wrong index in ERR_set_error_data. 6478 [Bodo Moeller] 6479 6480 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6481 did not exist. 6482 [Bodo Moeller] 6483 6484 *) Replace rdtsc with _emit statements for VC++ version 5. 6485 [Jeremy Cooper <jeremy@baymoo.org>] 6486 6487 *) Make it possible to reuse SSLv2 sessions. 6488 [Richard Levitte] 6489 6490 *) In copy_email() check for >= 0 as a return value for 6491 X509_NAME_get_index_by_NID() since 0 is a valid index. 6492 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6493 6494 *) Avoid coredump with unsupported or invalid public keys by checking if 6495 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6496 PKCS7_verify() fails with non detached data. 6497 [Steve Henson] 6498 6499 *) Don't use getenv in library functions when run as setuid/setgid. 6500 New function OPENSSL_issetugid(). 6501 [Ulf Moeller] 6502 6503 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6504 due to incorrect handling of multi-threading: 6505 6506 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6507 6508 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6509 6510 3. Count how many times MemCheck_off() has been called so that 6511 nested use can be treated correctly. This also avoids 6512 inband-signalling in the previous code (which relied on the 6513 assumption that thread ID 0 is impossible). 6514 [Bodo Moeller] 6515 6516 *) Add "-rand" option also to s_client and s_server. 6517 [Lutz Jaenicke] 6518 6519 *) Fix CPU detection on Irix 6.x. 6520 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6521 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6522 6523 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6524 was empty. 6525 [Steve Henson] 6526 [This change does not apply to 0.9.7.] 6527 6528 *) Use the cached encoding of an X509_NAME structure rather than 6529 copying it. This is apparently the reason for the libsafe "errors" 6530 but the code is actually correct. 6531 [Steve Henson] 6532 6533 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6534 Bleichenbacher's DSA attack. 6535 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6536 to be set and top=0 forces the highest bit to be set; top=-1 is new 6537 and leaves the highest bit random. 6538 [Ulf Moeller, Bodo Moeller] 6539 6540 *) In the NCONF_...-based implementations for CONF_... queries 6541 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6542 a temporary CONF structure with the data component set to NULL 6543 (which gives segmentation faults in lh_retrieve). 6544 Instead, use NULL for the CONF pointer in CONF_get_string and 6545 CONF_get_number (which may use environment variables) and directly 6546 return NULL from CONF_get_section. 6547 [Bodo Moeller] 6548 6549 *) Fix potential buffer overrun for EBCDIC. 6550 [Ulf Moeller] 6551 6552 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6553 keyUsage if basicConstraints absent for a CA. 6554 [Steve Henson] 6555 6556 *) Make SMIME_write_PKCS7() write mail header values with a format that 6557 is more generally accepted (no spaces before the semicolon), since 6558 some programs can't parse those values properly otherwise. Also make 6559 sure BIO's that break lines after each write do not create invalid 6560 headers. 6561 [Richard Levitte] 6562 6563 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6564 macros previously used would not encode an empty SEQUENCE OF 6565 and break the signature. 6566 [Steve Henson] 6567 [This change does not apply to 0.9.7.] 6568 6569 *) Zero the premaster secret after deriving the master secret in 6570 DH ciphersuites. 6571 [Steve Henson] 6572 6573 *) Add some EVP_add_digest_alias registrations (as found in 6574 OpenSSL_add_all_digests()) to SSL_library_init() 6575 aka OpenSSL_add_ssl_algorithms(). This provides improved 6576 compatibility with peers using X.509 certificates 6577 with unconventional AlgorithmIdentifier OIDs. 6578 [Bodo Moeller] 6579 6580 *) Fix for Irix with NO_ASM. 6581 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6582 6583 *) ./config script fixes. 6584 [Ulf Moeller, Richard Levitte] 6585 6586 *) Fix 'openssl passwd -1'. 6587 [Bodo Moeller] 6588 6589 *) Change PKCS12_key_gen_asc() so it can cope with non null 6590 terminated strings whose length is passed in the passlen 6591 parameter, for example from PEM callbacks. This was done 6592 by adding an extra length parameter to asc2uni(). 6593 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6594 6595 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6596 call failed, free the DSA structure. 6597 [Bodo Moeller] 6598 6599 *) Fix to uni2asc() to cope with zero length Unicode strings. 6600 These are present in some PKCS#12 files. 6601 [Steve Henson] 6602 6603 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6604 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6605 when writing a 32767 byte record. 6606 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6607 6608 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6609 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6610 6611 (RSA objects have a reference count access to which is protected 6612 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6613 so they are meant to be shared between threads.) 6614 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6615 "Reddie, Steven" <Steven.Reddie@ca.com>] 6616 6617 *) Fix a deadlock in CRYPTO_mem_leaks(). 6618 [Bodo Moeller] 6619 6620 *) Use better test patterns in bntest. 6621 [Ulf M�ller] 6622 6623 *) rand_win.c fix for Borland C. 6624 [Ulf M�ller] 6625 6626 *) BN_rshift bugfix for n == 0. 6627 [Bodo Moeller] 6628 6629 *) Add a 'bctest' script that checks for some known 'bc' bugs 6630 so that 'make test' does not abort just because 'bc' is broken. 6631 [Bodo Moeller] 6632 6633 *) Store verify_result within SSL_SESSION also for client side to 6634 avoid potential security hole. (Re-used sessions on the client side 6635 always resulted in verify_result==X509_V_OK, not using the original 6636 result of the server certificate verification.) 6637 [Lutz Jaenicke] 6638 6639 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6640 SSL3_RT_APPLICATION_DATA, return 0. 6641 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6642 [Bodo Moeller] 6643 6644 *) Fix SSL_peek: 6645 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6646 releases, have been re-implemented by renaming the previous 6647 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6648 and ssl3_read_internal, respectively, and adding 'peek' parameters 6649 to them. The new ssl[23]_{read,peek} functions are calls to 6650 ssl[23]_read_internal with the 'peek' flag set appropriately. 6651 A 'peek' parameter has also been added to ssl3_read_bytes, which 6652 does the actual work for ssl3_read_internal. 6653 [Bodo Moeller] 6654 6655 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6656 the method-specific "init()" handler. Also clean up ex_data after 6657 calling the method-specific "finish()" handler. Previously, this was 6658 happening the other way round. 6659 [Geoff Thorpe] 6660 6661 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6662 The previous value, 12, was not always sufficient for BN_mod_exp(). 6663 [Bodo Moeller] 6664 6665 *) Make sure that shared libraries get the internal name engine with 6666 the full version number and not just 0. This should mark the 6667 shared libraries as not backward compatible. Of course, this should 6668 be changed again when we can guarantee backward binary compatibility. 6669 [Richard Levitte] 6670 6671 *) Fix typo in get_cert_by_subject() in by_dir.c 6672 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6673 6674 *) Rework the system to generate shared libraries: 6675 6676 - Make note of the expected extension for the shared libraries and 6677 if there is a need for symbolic links from for example libcrypto.so.0 6678 to libcrypto.so.0.9.7. There is extended info in Configure for 6679 that. 6680 6681 - Make as few rebuilds of the shared libraries as possible. 6682 6683 - Still avoid linking the OpenSSL programs with the shared libraries. 6684 6685 - When installing, install the shared libraries separately from the 6686 static ones. 6687 [Richard Levitte] 6688 6689 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6690 6691 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6692 and not in SSL_clear because the latter is also used by the 6693 accept/connect functions; previously, the settings made by 6694 SSL_set_read_ahead would be lost during the handshake. 6695 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6696 6697 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6698 Previously, it would create entries for disableed algorithms no 6699 matter what. 6700 [Richard Levitte] 6701 6702 *) Added several new manual pages for SSL_* function. 6703 [Lutz Jaenicke] 6704 6705 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6706 6707 *) In ssl23_get_client_hello, generate an error message when faced 6708 with an initial SSL 3.0/TLS record that is too small to contain the 6709 first two bytes of the ClientHello message, i.e. client_version. 6710 (Note that this is a pathologic case that probably has never happened 6711 in real life.) The previous approach was to use the version number 6712 from the record header as a substitute; but our protocol choice 6713 should not depend on that one because it is not authenticated 6714 by the Finished messages. 6715 [Bodo Moeller] 6716 6717 *) More robust randomness gathering functions for Windows. 6718 [Jeffrey Altman <jaltman@columbia.edu>] 6719 6720 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6721 not set then we don't setup the error code for issuer check errors 6722 to avoid possibly overwriting other errors which the callback does 6723 handle. If an application does set the flag then we assume it knows 6724 what it is doing and can handle the new informational codes 6725 appropriately. 6726 [Steve Henson] 6727 6728 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6729 a general "ANY" type, as such it should be able to decode anything 6730 including tagged types. However it didn't check the class so it would 6731 wrongly interpret tagged types in the same way as their universal 6732 counterpart and unknown types were just rejected. Changed so that the 6733 tagged and unknown types are handled in the same way as a SEQUENCE: 6734 that is the encoding is stored intact. There is also a new type 6735 "V_ASN1_OTHER" which is used when the class is not universal, in this 6736 case we have no idea what the actual type is so we just lump them all 6737 together. 6738 [Steve Henson] 6739 6740 *) On VMS, stdout may very well lead to a file that is written to 6741 in a record-oriented fashion. That means that every write() will 6742 write a separate record, which will be read separately by the 6743 programs trying to read from it. This can be very confusing. 6744 6745 The solution is to put a BIO filter in the way that will buffer 6746 text until a linefeed is reached, and then write everything a 6747 line at a time, so every record written will be an actual line, 6748 not chunks of lines and not (usually doesn't happen, but I've 6749 seen it once) several lines in one record. BIO_f_linebuffer() is 6750 the answer. 6751 6752 Currently, it's a VMS-only method, because that's where it has 6753 been tested well enough. 6754 [Richard Levitte] 6755 6756 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6757 it can return incorrect results. 6758 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6759 but it was in 0.9.6-beta[12].) 6760 [Bodo Moeller] 6761 6762 *) Disable the check for content being present when verifying detached 6763 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6764 include zero length content when signing messages. 6765 [Steve Henson] 6766 6767 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6768 BIO_ctrl (for BIO pairs). 6769 [Bodo M�ller] 6770 6771 *) Add DSO method for VMS. 6772 [Richard Levitte] 6773 6774 *) Bug fix: Montgomery multiplication could produce results with the 6775 wrong sign. 6776 [Ulf M�ller] 6777 6778 *) Add RPM specification openssl.spec and modify it to build three 6779 packages. The default package contains applications, application 6780 documentation and run-time libraries. The devel package contains 6781 include files, static libraries and function documentation. The 6782 doc package contains the contents of the doc directory. The original 6783 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6784 [Richard Levitte] 6785 6786 *) Add a large number of documentation files for many SSL routines. 6787 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6788 6789 *) Add a configuration entry for Sony News 4. 6790 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6791 6792 *) Don't set the two most significant bits to one when generating a 6793 random number < q in the DSA library. 6794 [Ulf M�ller] 6795 6796 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 6797 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 6798 the underlying transport is blocking) if a handshake took place. 6799 (The default behaviour is needed by applications such as s_client 6800 and s_server that use select() to determine when to use SSL_read; 6801 but for applications that know in advance when to expect data, it 6802 just makes things more complicated.) 6803 [Bodo Moeller] 6804 6805 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 6806 from EGD. 6807 [Ben Laurie] 6808 6809 *) Add a few more EBCDIC conditionals that make `req' and `x509' 6810 work better on such systems. 6811 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 6812 6813 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 6814 Update PKCS12_parse() so it copies the friendlyName and the 6815 keyid to the certificates aux info. 6816 [Steve Henson] 6817 6818 *) Fix bug in PKCS7_verify() which caused an infinite loop 6819 if there was more than one signature. 6820 [Sven Uszpelkat <su@celocom.de>] 6821 6822 *) Major change in util/mkdef.pl to include extra information 6823 about each symbol, as well as presentig variables as well 6824 as functions. This change means that there's n more need 6825 to rebuild the .num files when some algorithms are excluded. 6826 [Richard Levitte] 6827 6828 *) Allow the verify time to be set by an application, 6829 rather than always using the current time. 6830 [Steve Henson] 6831 6832 *) Phase 2 verify code reorganisation. The certificate 6833 verify code now looks up an issuer certificate by a 6834 number of criteria: subject name, authority key id 6835 and key usage. It also verifies self signed certificates 6836 by the same criteria. The main comparison function is 6837 X509_check_issued() which performs these checks. 6838 6839 Lot of changes were necessary in order to support this 6840 without completely rewriting the lookup code. 6841 6842 Authority and subject key identifier are now cached. 6843 6844 The LHASH 'certs' is X509_STORE has now been replaced 6845 by a STACK_OF(X509_OBJECT). This is mainly because an 6846 LHASH can't store or retrieve multiple objects with 6847 the same hash value. 6848 6849 As a result various functions (which were all internal 6850 use only) have changed to handle the new X509_STORE 6851 structure. This will break anything that messed round 6852 with X509_STORE internally. 6853 6854 The functions X509_STORE_add_cert() now checks for an 6855 exact match, rather than just subject name. 6856 6857 The X509_STORE API doesn't directly support the retrieval 6858 of multiple certificates matching a given criteria, however 6859 this can be worked round by performing a lookup first 6860 (which will fill the cache with candidate certificates) 6861 and then examining the cache for matches. This is probably 6862 the best we can do without throwing out X509_LOOKUP 6863 entirely (maybe later...). 6864 6865 The X509_VERIFY_CTX structure has been enhanced considerably. 6866 6867 All certificate lookup operations now go via a get_issuer() 6868 callback. Although this currently uses an X509_STORE it 6869 can be replaced by custom lookups. This is a simple way 6870 to bypass the X509_STORE hackery necessary to make this 6871 work and makes it possible to use more efficient techniques 6872 in future. A very simple version which uses a simple 6873 STACK for its trusted certificate store is also provided 6874 using X509_STORE_CTX_trusted_stack(). 6875 6876 The verify_cb() and verify() callbacks now have equivalents 6877 in the X509_STORE_CTX structure. 6878 6879 X509_STORE_CTX also has a 'flags' field which can be used 6880 to customise the verify behaviour. 6881 [Steve Henson] 6882 6883 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 6884 excludes S/MIME capabilities. 6885 [Steve Henson] 6886 6887 *) When a certificate request is read in keep a copy of the 6888 original encoding of the signed data and use it when outputing 6889 again. Signatures then use the original encoding rather than 6890 a decoded, encoded version which may cause problems if the 6891 request is improperly encoded. 6892 [Steve Henson] 6893 6894 *) For consistency with other BIO_puts implementations, call 6895 buffer_write(b, ...) directly in buffer_puts instead of calling 6896 BIO_write(b, ...). 6897 6898 In BIO_puts, increment b->num_write as in BIO_write. 6899 [Peter.Sylvester@EdelWeb.fr] 6900 6901 *) Fix BN_mul_word for the case where the word is 0. (We have to use 6902 BN_zero, we may not return a BIGNUM with an array consisting of 6903 words set to zero.) 6904 [Bodo Moeller] 6905 6906 *) Avoid calling abort() from within the library when problems are 6907 detected, except if preprocessor symbols have been defined 6908 (such as REF_CHECK, BN_DEBUG etc.). 6909 [Bodo Moeller] 6910 6911 *) New openssl application 'rsautl'. This utility can be 6912 used for low level RSA operations. DER public key 6913 BIO/fp routines also added. 6914 [Steve Henson] 6915 6916 *) New Configure entry and patches for compiling on QNX 4. 6917 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 6918 6919 *) A demo state-machine implementation was sponsored by 6920 Nuron (http://www.nuron.com/) and is now available in 6921 demos/state_machine. 6922 [Ben Laurie] 6923 6924 *) New options added to the 'dgst' utility for signature 6925 generation and verification. 6926 [Steve Henson] 6927 6928 *) Unrecognized PKCS#7 content types are now handled via a 6929 catch all ASN1_TYPE structure. This allows unsupported 6930 types to be stored as a "blob" and an application can 6931 encode and decode it manually. 6932 [Steve Henson] 6933 6934 *) Fix various signed/unsigned issues to make a_strex.c 6935 compile under VC++. 6936 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 6937 6938 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 6939 length if passed a buffer. ASN1_INTEGER_to_BN failed 6940 if passed a NULL BN and its argument was negative. 6941 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 6942 6943 *) Modification to PKCS#7 encoding routines to output definite 6944 length encoding. Since currently the whole structures are in 6945 memory there's not real point in using indefinite length 6946 constructed encoding. However if OpenSSL is compiled with 6947 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 6948 [Steve Henson] 6949 6950 *) Added BIO_vprintf() and BIO_vsnprintf(). 6951 [Richard Levitte] 6952 6953 *) Added more prefixes to parse for in the the strings written 6954 through a logging bio, to cover all the levels that are available 6955 through syslog. The prefixes are now: 6956 6957 PANIC, EMERG, EMR => LOG_EMERG 6958 ALERT, ALR => LOG_ALERT 6959 CRIT, CRI => LOG_CRIT 6960 ERROR, ERR => LOG_ERR 6961 WARNING, WARN, WAR => LOG_WARNING 6962 NOTICE, NOTE, NOT => LOG_NOTICE 6963 INFO, INF => LOG_INFO 6964 DEBUG, DBG => LOG_DEBUG 6965 6966 and as before, if none of those prefixes are present at the 6967 beginning of the string, LOG_ERR is chosen. 6968 6969 On Win32, the LOG_* levels are mapped according to this: 6970 6971 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 6972 LOG_WARNING => EVENTLOG_WARNING_TYPE 6973 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 6974 6975 [Richard Levitte] 6976 6977 *) Made it possible to reconfigure with just the configuration 6978 argument "reconf" or "reconfigure". The command line arguments 6979 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 6980 and are retrieved from there when reconfiguring. 6981 [Richard Levitte] 6982 6983 *) MD4 implemented. 6984 [Assar Westerlund <assar@sics.se>, Richard Levitte] 6985 6986 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 6987 [Richard Levitte] 6988 6989 *) The obj_dat.pl script was messing up the sorting of object 6990 names. The reason was that it compared the quoted version 6991 of strings as a result "OCSP" > "OCSP Signing" because 6992 " > SPACE. Changed script to store unquoted versions of 6993 names and add quotes on output. It was also omitting some 6994 names from the lookup table if they were given a default 6995 value (that is if SN is missing it is given the same 6996 value as LN and vice versa), these are now added on the 6997 grounds that if an object has a name we should be able to 6998 look it up. Finally added warning output when duplicate 6999 short or long names are found. 7000 [Steve Henson] 7001 7002 *) Changes needed for Tandem NSK. 7003 [Scott Uroff <scott@xypro.com>] 7004 7005 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7006 RSA_padding_check_SSLv23(), special padding was never detected 7007 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7008 version rollback attacks was not effective. 7009 7010 In s23_clnt.c, don't use special rollback-attack detection padding 7011 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7012 client; similarly, in s23_srvr.c, don't do the rollback check if 7013 SSL 2.0 is the only protocol enabled in the server. 7014 [Bodo Moeller] 7015 7016 *) Make it possible to get hexdumps of unprintable data with 'openssl 7017 asn1parse'. By implication, the functions ASN1_parse_dump() and 7018 BIO_dump_indent() are added. 7019 [Richard Levitte] 7020 7021 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7022 these print out strings and name structures based on various 7023 flags including RFC2253 support and proper handling of 7024 multibyte characters. Added options to the 'x509' utility 7025 to allow the various flags to be set. 7026 [Steve Henson] 7027 7028 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7029 Also change the functions X509_cmp_current_time() and 7030 X509_gmtime_adj() work with an ASN1_TIME structure, 7031 this will enable certificates using GeneralizedTime in validity 7032 dates to be checked. 7033 [Steve Henson] 7034 7035 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7036 negative public key encodings) on by default, 7037 NO_NEG_PUBKEY_BUG can be set to disable it. 7038 [Steve Henson] 7039 7040 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7041 content octets. An i2c_ASN1_OBJECT is unnecessary because 7042 the encoding can be trivially obtained from the structure. 7043 [Steve Henson] 7044 7045 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7046 not read locks (CRYPTO_r_[un]lock). 7047 [Bodo Moeller] 7048 7049 *) A first attempt at creating official support for shared 7050 libraries through configuration. I've kept it so the 7051 default is static libraries only, and the OpenSSL programs 7052 are always statically linked for now, but there are 7053 preparations for dynamic linking in place. 7054 This has been tested on Linux and Tru64. 7055 [Richard Levitte] 7056 7057 *) Randomness polling function for Win9x, as described in: 7058 Peter Gutmann, Software Generation of Practically Strong 7059 Random Numbers. 7060 [Ulf M�ller] 7061 7062 *) Fix so PRNG is seeded in req if using an already existing 7063 DSA key. 7064 [Steve Henson] 7065 7066 *) New options to smime application. -inform and -outform 7067 allow alternative formats for the S/MIME message including 7068 PEM and DER. The -content option allows the content to be 7069 specified separately. This should allow things like Netscape 7070 form signing output easier to verify. 7071 [Steve Henson] 7072 7073 *) Fix the ASN1 encoding of tags using the 'long form'. 7074 [Steve Henson] 7075 7076 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7077 STRING types. These convert content octets to and from the 7078 underlying type. The actual tag and length octets are 7079 already assumed to have been read in and checked. These 7080 are needed because all other string types have virtually 7081 identical handling apart from the tag. By having versions 7082 of the ASN1 functions that just operate on content octets 7083 IMPLICIT tagging can be handled properly. It also allows 7084 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7085 and ASN1_INTEGER are identical apart from the tag. 7086 [Steve Henson] 7087 7088 *) Change the handling of OID objects as follows: 7089 7090 - New object identifiers are inserted in objects.txt, following 7091 the syntax given in objects.README. 7092 - objects.pl is used to process obj_mac.num and create a new 7093 obj_mac.h. 7094 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7095 obj_mac.h. 7096 7097 This is currently kind of a hack, and the perl code in objects.pl 7098 isn't very elegant, but it works as I intended. The simplest way 7099 to check that it worked correctly is to look in obj_dat.h and 7100 check the array nid_objs and make sure the objects haven't moved 7101 around (this is important!). Additions are OK, as well as 7102 consistent name changes. 7103 [Richard Levitte] 7104 7105 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7106 [Bodo Moeller] 7107 7108 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7109 The given file adds to whatever has already been seeded into the 7110 random pool through the RANDFILE configuration file option or 7111 environment variable, or the default random state file. 7112 [Richard Levitte] 7113 7114 *) mkstack.pl now sorts each macro group into lexical order. 7115 Previously the output order depended on the order the files 7116 appeared in the directory, resulting in needless rewriting 7117 of safestack.h . 7118 [Steve Henson] 7119 7120 *) Patches to make OpenSSL compile under Win32 again. Mostly 7121 work arounds for the VC++ problem that it treats func() as 7122 func(void). Also stripped out the parts of mkdef.pl that 7123 added extra typesafe functions: these no longer exist. 7124 [Steve Henson] 7125 7126 *) Reorganisation of the stack code. The macros are now all 7127 collected in safestack.h . Each macro is defined in terms of 7128 a "stack macro" of the form SKM_<name>(type, a, b). The 7129 DEBUG_SAFESTACK is now handled in terms of function casts, 7130 this has the advantage of retaining type safety without the 7131 use of additional functions. If DEBUG_SAFESTACK is not defined 7132 then the non typesafe macros are used instead. Also modified the 7133 mkstack.pl script to handle the new form. Needs testing to see 7134 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7135 the default if no major problems. Similar behaviour for ASN1_SET_OF 7136 and PKCS12_STACK_OF. 7137 [Steve Henson] 7138 7139 *) When some versions of IIS use the 'NET' form of private key the 7140 key derivation algorithm is different. Normally MD5(password) is 7141 used as a 128 bit RC4 key. In the modified case 7142 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7143 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7144 as the old Netscape_RSA functions except they have an additional 7145 'sgckey' parameter which uses the modified algorithm. Also added 7146 an -sgckey command line option to the rsa utility. Thanks to 7147 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7148 algorithm to openssl-dev. 7149 [Steve Henson] 7150 7151 *) The evp_local.h macros were using 'c.##kname' which resulted in 7152 invalid expansion on some systems (SCO 5.0.5 for example). 7153 Corrected to 'c.kname'. 7154 [Phillip Porch <root@theporch.com>] 7155 7156 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7157 a STACK of email addresses from a certificate or request, these look 7158 in the subject name and the subject alternative name extensions and 7159 omit any duplicate addresses. 7160 [Steve Henson] 7161 7162 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7163 This makes DSA verification about 2 % faster. 7164 [Bodo Moeller] 7165 7166 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7167 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7168 plus overhead for 1024 bit moduli). 7169 This makes exponentiations about 0.5 % faster for 1024 bit 7170 exponents (as measured by "openssl speed rsa2048"). 7171 [Bodo Moeller] 7172 7173 *) Rename memory handling macros to avoid conflicts with other 7174 software: 7175 Malloc => OPENSSL_malloc 7176 Malloc_locked => OPENSSL_malloc_locked 7177 Realloc => OPENSSL_realloc 7178 Free => OPENSSL_free 7179 [Richard Levitte] 7180 7181 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7182 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7183 [Bodo Moeller] 7184 7185 *) CygWin32 support. 7186 [John Jarvie <jjarvie@newsguy.com>] 7187 7188 *) The type-safe stack code has been rejigged. It is now only compiled 7189 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7190 by default all type-specific stack functions are "#define"d back to 7191 standard stack functions. This results in more streamlined output 7192 but retains the type-safety checking possibilities of the original 7193 approach. 7194 [Geoff Thorpe] 7195 7196 *) The STACK code has been cleaned up, and certain type declarations 7197 that didn't make a lot of sense have been brought in line. This has 7198 also involved a cleanup of sorts in safestack.h to more correctly 7199 map type-safe stack functions onto their plain stack counterparts. 7200 This work has also resulted in a variety of "const"ifications of 7201 lots of the code, especially "_cmp" operations which should normally 7202 be prototyped with "const" parameters anyway. 7203 [Geoff Thorpe] 7204 7205 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7206 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7207 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7208 where all of 'md' is used each time the PRNG is used, but 'state' 7209 is used only indexed by a cyclic counter. As entropy may not be 7210 well distributed from the beginning, 'md' is important as a 7211 chaining variable. However, the output function chains only half 7212 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7213 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7214 in all of 'state' being rewritten, with the new values depending 7215 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7216 [Bodo Moeller] 7217 7218 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7219 the handshake is continued after ssl_verify_cert_chain(); 7220 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7221 can lead to 'unexplainable' connection aborts later. 7222 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7223 7224 *) Major EVP API cipher revision. 7225 Add hooks for extra EVP features. This allows various cipher 7226 parameters to be set in the EVP interface. Support added for variable 7227 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7228 setting of RC2 and RC5 parameters. 7229 7230 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7231 ciphers. 7232 7233 Remove lots of duplicated code from the EVP library. For example *every* 7234 cipher init() function handles the 'iv' in the same way according to the 7235 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7236 for CFB and OFB modes they zero ctx->num. 7237 7238 New functionality allows removal of S/MIME code RC2 hack. 7239 7240 Most of the routines have the same form and so can be declared in terms 7241 of macros. 7242 7243 By shifting this to the top level EVP_CipherInit() it can be removed from 7244 all individual ciphers. If the cipher wants to handle IVs or keys 7245 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7246 flags. 7247 7248 Change lots of functions like EVP_EncryptUpdate() to now return a 7249 value: although software versions of the algorithms cannot fail 7250 any installed hardware versions can. 7251 [Steve Henson] 7252 7253 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7254 this option is set, tolerate broken clients that send the negotiated 7255 protocol version number instead of the requested protocol version 7256 number. 7257 [Bodo Moeller] 7258 7259 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7260 i.e. non-zero for export ciphersuites, zero otherwise. 7261 Previous versions had this flag inverted, inconsistent with 7262 rsa_tmp_cb (..._TMP_RSA_CB). 7263 [Bodo Moeller; problem reported by Amit Chopra] 7264 7265 *) Add missing DSA library text string. Work around for some IIS 7266 key files with invalid SEQUENCE encoding. 7267 [Steve Henson] 7268 7269 *) Add a document (doc/standards.txt) that list all kinds of standards 7270 and so on that are implemented in OpenSSL. 7271 [Richard Levitte] 7272 7273 *) Enhance c_rehash script. Old version would mishandle certificates 7274 with the same subject name hash and wouldn't handle CRLs at all. 7275 Added -fingerprint option to crl utility, to support new c_rehash 7276 features. 7277 [Steve Henson] 7278 7279 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7280 [Ulf M�ller] 7281 7282 *) Fix for SSL server purpose checking. Server checking was 7283 rejecting certificates which had extended key usage present 7284 but no ssl client purpose. 7285 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7286 7287 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7288 is a little unclear about how a blank password is handled. 7289 Since the password in encoded as a BMPString with terminating 7290 double NULL a zero length password would end up as just the 7291 double NULL. However no password at all is different and is 7292 handled differently in the PKCS#12 key generation code. NS 7293 treats a blank password as zero length. MSIE treats it as no 7294 password on export: but it will try both on import. We now do 7295 the same: PKCS12_parse() tries zero length and no password if 7296 the password is set to "" or NULL (NULL is now a valid password: 7297 it wasn't before) as does the pkcs12 application. 7298 [Steve Henson] 7299 7300 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7301 perror when PEM_read_bio_X509_REQ fails, the error message must 7302 be obtained from the error queue. 7303 [Bodo Moeller] 7304 7305 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7306 it in ERR_remove_state if appropriate, and change ERR_get_state 7307 accordingly to avoid race conditions (this is necessary because 7308 thread_hash is no longer constant once set). 7309 [Bodo Moeller] 7310 7311 *) Bugfix for linux-elf makefile.one. 7312 [Ulf M�ller] 7313 7314 *) RSA_get_default_method() will now cause a default 7315 RSA_METHOD to be chosen if one doesn't exist already. 7316 Previously this was only set during a call to RSA_new() 7317 or RSA_new_method(NULL) meaning it was possible for 7318 RSA_get_default_method() to return NULL. 7319 [Geoff Thorpe] 7320 7321 *) Added native name translation to the existing DSO code 7322 that will convert (if the flag to do so is set) filenames 7323 that are sufficiently small and have no path information 7324 into a canonical native form. Eg. "blah" converted to 7325 "libblah.so" or "blah.dll" etc. 7326 [Geoff Thorpe] 7327 7328 *) New function ERR_error_string_n(e, buf, len) which is like 7329 ERR_error_string(e, buf), but writes at most 'len' bytes 7330 including the 0 terminator. For ERR_error_string_n, 'buf' 7331 may not be NULL. 7332 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7333 7334 *) CONF library reworked to become more general. A new CONF 7335 configuration file reader "class" is implemented as well as a 7336 new functions (NCONF_*, for "New CONF") to handle it. The now 7337 old CONF_* functions are still there, but are reimplemented to 7338 work in terms of the new functions. Also, a set of functions 7339 to handle the internal storage of the configuration data is 7340 provided to make it easier to write new configuration file 7341 reader "classes" (I can definitely see something reading a 7342 configuration file in XML format, for example), called _CONF_*, 7343 or "the configuration storage API"... 7344 7345 The new configuration file reading functions are: 7346 7347 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7348 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7349 7350 NCONF_default, NCONF_WIN32 7351 7352 NCONF_dump_fp, NCONF_dump_bio 7353 7354 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7355 NCONF_new creates a new CONF object. This works in the same way 7356 as other interfaces in OpenSSL, like the BIO interface. 7357 NCONF_dump_* dump the internal storage of the configuration file, 7358 which is useful for debugging. All other functions take the same 7359 arguments as the old CONF_* functions wth the exception of the 7360 first that must be a `CONF *' instead of a `LHASH *'. 7361 7362 To make it easer to use the new classes with the old CONF_* functions, 7363 the function CONF_set_default_method is provided. 7364 [Richard Levitte] 7365 7366 *) Add '-tls1' option to 'openssl ciphers', which was already 7367 mentioned in the documentation but had not been implemented. 7368 (This option is not yet really useful because even the additional 7369 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7370 [Bodo Moeller] 7371 7372 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7373 OpenSSL-based applications) load shared libraries and bind to 7374 them in a portable way. 7375 [Geoff Thorpe, with contributions from Richard Levitte] 7376 7377 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7378 7379 *) Make sure _lrotl and _lrotr are only used with MSVC. 7380 7381 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7382 (the default implementation of RAND_status). 7383 7384 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7385 to '-clrext' (= clear extensions), as intended and documented. 7386 [Bodo Moeller; inconsistency pointed out by Michael Attili 7387 <attili@amaxo.com>] 7388 7389 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7390 was larger than the MD block size. 7391 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7392 7393 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7394 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7395 using the passed key: if the passed key was a private key the result 7396 of X509_print(), for example, would be to print out all the private key 7397 components. 7398 [Steve Henson] 7399 7400 *) des_quad_cksum() byte order bug fix. 7401 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7402 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7403 7404 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7405 discouraged. 7406 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7407 7408 *) For easily testing in shell scripts whether some command 7409 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7410 returns with exit code 0 iff no command of the given name is available. 7411 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7412 the output goes to stdout and nothing is printed to stderr. 7413 Additional arguments are always ignored. 7414 7415 Since for each cipher there is a command of the same name, 7416 the 'no-cipher' compilation switches can be tested this way. 7417 7418 ('openssl no-XXX' is not able to detect pseudo-commands such 7419 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7420 [Bodo Moeller] 7421 7422 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7423 [Bodo Moeller] 7424 7425 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7426 is set; it will be thrown away anyway because each handshake creates 7427 its own key. 7428 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7429 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7430 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7431 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7432 [Bodo Moeller] 7433 7434 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7435 'Q' and 'R' lose their special meanings (quit/renegotiate). 7436 This is part of what -quiet does; unlike -quiet, -ign_eof 7437 does not suppress any output. 7438 [Richard Levitte] 7439 7440 *) Add compatibility options to the purpose and trust code. The 7441 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7442 accepts a certificate or CA, this was the previous behaviour, 7443 with all the associated security issues. 7444 7445 X509_TRUST_COMPAT is the old trust behaviour: only and 7446 automatically trust self signed roots in certificate store. A 7447 new trust setting X509_TRUST_DEFAULT is used to specify that 7448 a purpose has no associated trust setting and it should instead 7449 use the value in the default purpose. 7450 [Steve Henson] 7451 7452 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7453 and fix a memory leak. 7454 [Steve Henson] 7455 7456 *) In util/mkerr.pl (which implements 'make errors'), preserve 7457 reason strings from the previous version of the .c file, as 7458 the default to have only downcase letters (and digits) in 7459 automatically generated reasons codes is not always appropriate. 7460 [Bodo Moeller] 7461 7462 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7463 using strerror. Previously, ERR_reason_error_string() returned 7464 library names as reason strings for SYSerr; but SYSerr is a special 7465 case where small numbers are errno values, not library numbers. 7466 [Bodo Moeller] 7467 7468 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7469 converts DSA parameters into DH parameters. (When creating parameters, 7470 DSA_generate_parameters is used.) 7471 [Bodo Moeller] 7472 7473 *) Include 'length' (recommended exponent length) in C code generated 7474 by 'openssl dhparam -C'. 7475 [Bodo Moeller] 7476 7477 *) The second argument to set_label in perlasm was already being used 7478 so couldn't be used as a "file scope" flag. Moved to third argument 7479 which was free. 7480 [Steve Henson] 7481 7482 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7483 instead of RAND_bytes for encryption IVs and salts. 7484 [Bodo Moeller] 7485 7486 *) Include RAND_status() into RAND_METHOD instead of implementing 7487 it only for md_rand.c Otherwise replacing the PRNG by calling 7488 RAND_set_rand_method would be impossible. 7489 [Bodo Moeller] 7490 7491 *) Don't let DSA_generate_key() enter an infinite loop if the random 7492 number generation fails. 7493 [Bodo Moeller] 7494 7495 *) New 'rand' application for creating pseudo-random output. 7496 [Bodo Moeller] 7497 7498 *) Added configuration support for Linux/IA64 7499 [Rolf Haberrecker <rolf@suse.de>] 7500 7501 *) Assembler module support for Mingw32. 7502 [Ulf M�ller] 7503 7504 *) Shared library support for HPUX (in shlib/). 7505 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7506 7507 *) Shared library support for Solaris gcc. 7508 [Lutz Behnke <behnke@trustcenter.de>] 7509 7510 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7511 7512 *) PKCS7_encrypt() was adding text MIME headers twice because they 7513 were added manually and by SMIME_crlf_copy(). 7514 [Steve Henson] 7515 7516 *) In bntest.c don't call BN_rand with zero bits argument. 7517 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7518 7519 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7520 case was implemented. This caused BN_div_recp() to fail occasionally. 7521 [Ulf M�ller] 7522 7523 *) Add an optional second argument to the set_label() in the perl 7524 assembly language builder. If this argument exists and is set 7525 to 1 it signals that the assembler should use a symbol whose 7526 scope is the entire file, not just the current function. This 7527 is needed with MASM which uses the format label:: for this scope. 7528 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7529 7530 *) Change the ASN1 types so they are typedefs by default. Before 7531 almost all types were #define'd to ASN1_STRING which was causing 7532 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7533 for example. 7534 [Steve Henson] 7535 7536 *) Change names of new functions to the new get1/get0 naming 7537 convention: After 'get1', the caller owns a reference count 7538 and has to call ..._free; 'get0' returns a pointer to some 7539 data structure without incrementing reference counters. 7540 (Some of the existing 'get' functions increment a reference 7541 counter, some don't.) 7542 Similarly, 'set1' and 'add1' functions increase reference 7543 counters or duplicate objects. 7544 [Steve Henson] 7545 7546 *) Allow for the possibility of temp RSA key generation failure: 7547 the code used to assume it always worked and crashed on failure. 7548 [Steve Henson] 7549 7550 *) Fix potential buffer overrun problem in BIO_printf(). 7551 [Ulf M�ller, using public domain code by Patrick Powell; problem 7552 pointed out by David Sacerdote <das33@cornell.edu>] 7553 7554 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7555 RAND_egd() and RAND_status(). In the command line application, 7556 the EGD socket can be specified like a seed file using RANDFILE 7557 or -rand. 7558 [Ulf M�ller] 7559 7560 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7561 Some CAs (e.g. Verisign) distribute certificates in this form. 7562 [Steve Henson] 7563 7564 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7565 list to exclude them. This means that no special compilation option 7566 is needed to use anonymous DH: it just needs to be included in the 7567 cipher list. 7568 [Steve Henson] 7569 7570 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7571 EVP_MD_type. The old functionality is available in a new macro called 7572 EVP_MD_md(). Change code that uses it and update docs. 7573 [Steve Henson] 7574 7575 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7576 where the 'void *' argument is replaced by a function pointer argument. 7577 Previously 'void *' was abused to point to functions, which works on 7578 many platforms, but is not correct. As these functions are usually 7579 called by macros defined in OpenSSL header files, most source code 7580 should work without changes. 7581 [Richard Levitte] 7582 7583 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7584 sections with information on -D... compiler switches used for 7585 compiling the library so that applications can see them. To enable 7586 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7587 must be defined. E.g., 7588 #define OPENSSL_ALGORITHM_DEFINES 7589 #include <openssl/opensslconf.h> 7590 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7591 [Richard Levitte, Ulf and Bodo M�ller] 7592 7593 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7594 record layer. 7595 [Bodo Moeller] 7596 7597 *) Change the 'other' type in certificate aux info to a STACK_OF 7598 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7599 the required ASN1 format: arbitrary types determined by an OID. 7600 [Steve Henson] 7601 7602 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7603 argument to 'req'. This is not because the function is newer or 7604 better than others it just uses the work 'NEW' in the certificate 7605 request header lines. Some software needs this. 7606 [Steve Henson] 7607 7608 *) Reorganise password command line arguments: now passwords can be 7609 obtained from various sources. Delete the PEM_cb function and make 7610 it the default behaviour: i.e. if the callback is NULL and the 7611 usrdata argument is not NULL interpret it as a null terminated pass 7612 phrase. If usrdata and the callback are NULL then the pass phrase 7613 is prompted for as usual. 7614 [Steve Henson] 7615 7616 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7617 the support is automatically enabled. The resulting binaries will 7618 autodetect the card and use it if present. 7619 [Ben Laurie and Compaq Inc.] 7620 7621 *) Work around for Netscape hang bug. This sends certificate request 7622 and server done in one record. Since this is perfectly legal in the 7623 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7624 the bugs/SSLv3 entry for more info. 7625 [Steve Henson] 7626 7627 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7628 [Andy Polyakov] 7629 7630 *) Add -rand argument to smime and pkcs12 applications and read/write 7631 of seed file. 7632 [Steve Henson] 7633 7634 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7635 [Bodo Moeller] 7636 7637 *) Add command line password options to the remaining applications. 7638 [Steve Henson] 7639 7640 *) Bug fix for BN_div_recp() for numerators with an even number of 7641 bits. 7642 [Ulf M�ller] 7643 7644 *) More tests in bntest.c, and changed test_bn output. 7645 [Ulf M�ller] 7646 7647 *) ./config recognizes MacOS X now. 7648 [Andy Polyakov] 7649 7650 *) Bug fix for BN_div() when the first words of num and divsor are 7651 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7652 [Ulf M�ller] 7653 7654 *) Add support for various broken PKCS#8 formats, and command line 7655 options to produce them. 7656 [Steve Henson] 7657 7658 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7659 get temporary BIGNUMs from a BN_CTX. 7660 [Ulf M�ller] 7661 7662 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7663 for p == 0. 7664 [Ulf M�ller] 7665 7666 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7667 include a #define from the old name to the new. The original intent 7668 was that statically linked binaries could for example just call 7669 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7670 link with digests. This never worked becayse SSLeay_add_all_digests() 7671 and SSLeay_add_all_ciphers() were in the same source file so calling 7672 one would link with the other. They are now in separate source files. 7673 [Steve Henson] 7674 7675 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7676 [Steve Henson] 7677 7678 *) Use a less unusual form of the Miller-Rabin primality test (it used 7679 a binary algorithm for exponentiation integrated into the Miller-Rabin 7680 loop, our standard modexp algorithms are faster). 7681 [Bodo Moeller] 7682 7683 *) Support for the EBCDIC character set completed. 7684 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7685 7686 *) Source code cleanups: use const where appropriate, eliminate casts, 7687 use void * instead of char * in lhash. 7688 [Ulf M�ller] 7689 7690 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7691 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7692 this the server could overwrite ephemeral keys that the client 7693 has already seen). 7694 [Bodo Moeller] 7695 7696 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7697 using 50 iterations of the Rabin-Miller test. 7698 7699 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7700 iterations of the Rabin-Miller test as required by the appendix 7701 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7702 As BN_is_prime_fasttest includes trial division, DSA parameter 7703 generation becomes much faster. 7704 7705 This implies a change for the callback functions in DSA_is_prime 7706 and DSA_generate_parameters: The callback function is called once 7707 for each positive witness in the Rabin-Miller test, not just 7708 occasionally in the inner loop; and the parameters to the 7709 callback function now provide an iteration count for the outer 7710 loop rather than for the current invocation of the inner loop. 7711 DSA_generate_parameters additionally can call the callback 7712 function with an 'iteration count' of -1, meaning that a 7713 candidate has passed the trial division test (when q is generated 7714 from an application-provided seed, trial division is skipped). 7715 [Bodo Moeller] 7716 7717 *) New function BN_is_prime_fasttest that optionally does trial 7718 division before starting the Rabin-Miller test and has 7719 an additional BN_CTX * argument (whereas BN_is_prime always 7720 has to allocate at least one BN_CTX). 7721 'callback(1, -1, cb_arg)' is called when a number has passed the 7722 trial division stage. 7723 [Bodo Moeller] 7724 7725 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7726 as ASN1_TIME. 7727 [Steve Henson] 7728 7729 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7730 [Steve Henson] 7731 7732 *) New function BN_pseudo_rand(). 7733 [Ulf M�ller] 7734 7735 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7736 bignum version of BN_from_montgomery() with the working code from 7737 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7738 the comments. 7739 [Ulf M�ller] 7740 7741 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7742 made it impossible to use the same SSL_SESSION data structure in 7743 SSL2 clients in multiple threads. 7744 [Bodo Moeller] 7745 7746 *) The return value of RAND_load_file() no longer counts bytes obtained 7747 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7748 to seed the PRNG (previously an explicit byte count was required). 7749 [Ulf M�ller, Bodo M�ller] 7750 7751 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7752 used (char *) instead of (void *) and had casts all over the place. 7753 [Steve Henson] 7754 7755 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7756 [Ulf M�ller] 7757 7758 *) Retain source code compatibility for BN_prime_checks macro: 7759 BN_is_prime(..., BN_prime_checks, ...) now uses 7760 BN_prime_checks_for_size to determine the appropriate number of 7761 Rabin-Miller iterations. 7762 [Ulf M�ller] 7763 7764 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7765 DH_CHECK_P_NOT_SAFE_PRIME. 7766 (Check if this is true? OpenPGP calls them "strong".) 7767 [Ulf M�ller] 7768 7769 *) Merge the functionality of "dh" and "gendh" programs into a new program 7770 "dhparam". The old programs are retained for now but will handle DH keys 7771 (instead of parameters) in future. 7772 [Steve Henson] 7773 7774 *) Make the ciphers, s_server and s_client programs check the return values 7775 when a new cipher list is set. 7776 [Steve Henson] 7777 7778 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7779 ciphers. Before when the 56bit ciphers were enabled the sorting was 7780 wrong. 7781 7782 The syntax for the cipher sorting has been extended to support sorting by 7783 cipher-strength (using the strength_bits hard coded in the tables). 7784 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7785 7786 Fix a bug in the cipher-command parser: when supplying a cipher command 7787 string with an "undefined" symbol (neither command nor alphanumeric 7788 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7789 an error is flagged. 7790 7791 Due to the strength-sorting extension, the code of the 7792 ssl_create_cipher_list() function was completely rearranged. I hope that 7793 the readability was also increased :-) 7794 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7795 7796 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 7797 for the first serial number and places 2 in the serial number file. This 7798 avoids problems when the root CA is created with serial number zero and 7799 the first user certificate has the same issuer name and serial number 7800 as the root CA. 7801 [Steve Henson] 7802 7803 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 7804 the new code. Add documentation for this stuff. 7805 [Steve Henson] 7806 7807 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 7808 X509_*() to X509at_*() on the grounds that they don't handle X509 7809 structures and behave in an analagous way to the X509v3 functions: 7810 they shouldn't be called directly but wrapper functions should be used 7811 instead. 7812 7813 So we also now have some wrapper functions that call the X509at functions 7814 when passed certificate requests. (TO DO: similar things can be done with 7815 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 7816 things. Some of these need some d2i or i2d and print functionality 7817 because they handle more complex structures.) 7818 [Steve Henson] 7819 7820 *) Add missing #ifndefs that caused missing symbols when building libssl 7821 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 7822 NO_RSA in ssl/s2*.c. 7823 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 7824 7825 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 7826 has a return value which indicates the quality of the random data 7827 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 7828 error queue. New function RAND_pseudo_bytes() generates output that is 7829 guaranteed to be unique but not unpredictable. RAND_add is like 7830 RAND_seed, but takes an extra argument for an entropy estimate 7831 (RAND_seed always assumes full entropy). 7832 [Ulf M�ller] 7833 7834 *) Do more iterations of Rabin-Miller probable prime test (specifically, 7835 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 7836 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 7837 in crypto/bn/bn_prime.c for the complete table). This guarantees a 7838 false-positive rate of at most 2^-80 for random input. 7839 [Bodo Moeller] 7840 7841 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 7842 [Bodo Moeller] 7843 7844 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 7845 in the 0.9.5 release), this returns the chain 7846 from an X509_CTX structure with a dup of the stack and all 7847 the X509 reference counts upped: so the stack will exist 7848 after X509_CTX_cleanup() has been called. Modify pkcs12.c 7849 to use this. 7850 7851 Also make SSL_SESSION_print() print out the verify return 7852 code. 7853 [Steve Henson] 7854 7855 *) Add manpage for the pkcs12 command. Also change the default 7856 behaviour so MAC iteration counts are used unless the new 7857 -nomaciter option is used. This improves file security and 7858 only older versions of MSIE (4.0 for example) need it. 7859 [Steve Henson] 7860 7861 *) Honor the no-xxx Configure options when creating .DEF files. 7862 [Ulf M�ller] 7863 7864 *) Add PKCS#10 attributes to field table: challengePassword, 7865 unstructuredName and unstructuredAddress. These are taken from 7866 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 7867 international characters are used. 7868 7869 More changes to X509_ATTRIBUTE code: allow the setting of types 7870 based on strings. Remove the 'loc' parameter when adding 7871 attributes because these will be a SET OF encoding which is sorted 7872 in ASN1 order. 7873 [Steve Henson] 7874 7875 *) Initial changes to the 'req' utility to allow request generation 7876 automation. This will allow an application to just generate a template 7877 file containing all the field values and have req construct the 7878 request. 7879 7880 Initial support for X509_ATTRIBUTE handling. Stacks of these are 7881 used all over the place including certificate requests and PKCS#7 7882 structures. They are currently handled manually where necessary with 7883 some primitive wrappers for PKCS#7. The new functions behave in a 7884 manner analogous to the X509 extension functions: they allow 7885 attributes to be looked up by NID and added. 7886 7887 Later something similar to the X509V3 code would be desirable to 7888 automatically handle the encoding, decoding and printing of the 7889 more complex types. The string types like challengePassword can 7890 be handled by the string table functions. 7891 7892 Also modified the multi byte string table handling. Now there is 7893 a 'global mask' which masks out certain types. The table itself 7894 can use the flag STABLE_NO_MASK to ignore the mask setting: this 7895 is useful when for example there is only one permissible type 7896 (as in countryName) and using the mask might result in no valid 7897 types at all. 7898 [Steve Henson] 7899 7900 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 7901 SSL_get_peer_finished to allow applications to obtain the latest 7902 Finished messages sent to the peer or expected from the peer, 7903 respectively. (SSL_get_peer_finished is usually the Finished message 7904 actually received from the peer, otherwise the protocol will be aborted.) 7905 7906 As the Finished message are message digests of the complete handshake 7907 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 7908 be used for external authentication procedures when the authentication 7909 provided by SSL/TLS is not desired or is not enough. 7910 [Bodo Moeller] 7911 7912 *) Enhanced support for Alpha Linux is added. Now ./config checks if 7913 the host supports BWX extension and if Compaq C is present on the 7914 $PATH. Just exploiting of the BWX extension results in 20-30% 7915 performance kick for some algorithms, e.g. DES and RC4 to mention 7916 a couple. Compaq C in turn generates ~20% faster code for MD5 and 7917 SHA1. 7918 [Andy Polyakov] 7919 7920 *) Add support for MS "fast SGC". This is arguably a violation of the 7921 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 7922 weak crypto and after checking the certificate is SGC a second one 7923 with strong crypto. MS SGC stops the first handshake after receiving 7924 the server certificate message and sends a second client hello. Since 7925 a server will typically do all the time consuming operations before 7926 expecting any further messages from the client (server key exchange 7927 is the most expensive) there is little difference between the two. 7928 7929 To get OpenSSL to support MS SGC we have to permit a second client 7930 hello message after we have sent server done. In addition we have to 7931 reset the MAC if we do get this second client hello. 7932 [Steve Henson] 7933 7934 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 7935 if a DER encoded private key is RSA or DSA traditional format. Changed 7936 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 7937 format DER encoded private key. Newer code should use PKCS#8 format which 7938 has the key type encoded in the ASN1 structure. Added DER private key 7939 support to pkcs8 application. 7940 [Steve Henson] 7941 7942 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 7943 ciphersuites has been selected (as required by the SSL 3/TLS 1 7944 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 7945 is set, we interpret this as a request to violate the specification 7946 (the worst that can happen is a handshake failure, and 'correct' 7947 behaviour would result in a handshake failure anyway). 7948 [Bodo Moeller] 7949 7950 *) In SSL_CTX_add_session, take into account that there might be multiple 7951 SSL_SESSION structures with the same session ID (e.g. when two threads 7952 concurrently obtain them from an external cache). 7953 The internal cache can handle only one SSL_SESSION with a given ID, 7954 so if there's a conflict, we now throw out the old one to achieve 7955 consistency. 7956 [Bodo Moeller] 7957 7958 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 7959 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 7960 some routines that use cipher OIDs: some ciphers do not have OIDs 7961 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 7962 example. 7963 [Steve Henson] 7964 7965 *) Simplify the trust setting structure and code. Now we just have 7966 two sequences of OIDs for trusted and rejected settings. These will 7967 typically have values the same as the extended key usage extension 7968 and any application specific purposes. 7969 7970 The trust checking code now has a default behaviour: it will just 7971 check for an object with the same NID as the passed id. Functions can 7972 be provided to override either the default behaviour or the behaviour 7973 for a given id. SSL client, server and email already have functions 7974 in place for compatibility: they check the NID and also return "trusted" 7975 if the certificate is self signed. 7976 [Steve Henson] 7977 7978 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 7979 traditional format into an EVP_PKEY structure. 7980 [Steve Henson] 7981 7982 *) Add a password callback function PEM_cb() which either prompts for 7983 a password if usr_data is NULL or otherwise assumes it is a null 7984 terminated password. Allow passwords to be passed on command line 7985 environment or config files in a few more utilities. 7986 [Steve Henson] 7987 7988 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 7989 keys. Add some short names for PKCS#8 PBE algorithms and allow them 7990 to be specified on the command line for the pkcs8 and pkcs12 utilities. 7991 Update documentation. 7992 [Steve Henson] 7993 7994 *) Support for ASN1 "NULL" type. This could be handled before by using 7995 ASN1_TYPE but there wasn't any function that would try to read a NULL 7996 and produce an error if it couldn't. For compatibility we also have 7997 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 7998 don't allocate anything because they don't need to. 7999 [Steve Henson] 8000 8001 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8002 for details. 8003 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8004 8005 *) Rebuild of the memory allocation routines used by OpenSSL code and 8006 possibly others as well. The purpose is to make an interface that 8007 provide hooks so anyone can build a separate set of allocation and 8008 deallocation routines to be used by OpenSSL, for example memory 8009 pool implementations, or something else, which was previously hard 8010 since Malloc(), Realloc() and Free() were defined as macros having 8011 the values malloc, realloc and free, respectively (except for Win32 8012 compilations). The same is provided for memory debugging code. 8013 OpenSSL already comes with functionality to find memory leaks, but 8014 this gives people a chance to debug other memory problems. 8015 8016 With these changes, a new set of functions and macros have appeared: 8017 8018 CRYPTO_set_mem_debug_functions() [F] 8019 CRYPTO_get_mem_debug_functions() [F] 8020 CRYPTO_dbg_set_options() [F] 8021 CRYPTO_dbg_get_options() [F] 8022 CRYPTO_malloc_debug_init() [M] 8023 8024 The memory debug functions are NULL by default, unless the library 8025 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8026 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8027 gives the standard debugging functions that come with OpenSSL) or 8028 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8029 provided by the library user) must be used. When the standard 8030 debugging functions are used, CRYPTO_dbg_set_options can be used to 8031 request additional information: 8032 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8033 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8034 8035 Also, things like CRYPTO_set_mem_functions will always give the 8036 expected result (the new set of functions is used for allocation 8037 and deallocation) at all times, regardless of platform and compiler 8038 options. 8039 8040 To finish it up, some functions that were never use in any other 8041 way than through macros have a new API and new semantic: 8042 8043 CRYPTO_dbg_malloc() 8044 CRYPTO_dbg_realloc() 8045 CRYPTO_dbg_free() 8046 8047 All macros of value have retained their old syntax. 8048 [Richard Levitte and Bodo Moeller] 8049 8050 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8051 ordering of SMIMECapabilities wasn't in "strength order" and there 8052 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8053 algorithm. 8054 [Steve Henson] 8055 8056 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8057 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8058 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8059 8060 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8061 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8062 functionality to handle multipart/signed properly) and a utility 8063 called 'smime' to call all this stuff. This is based on code I 8064 originally wrote for Celo who have kindly allowed it to be 8065 included in OpenSSL. 8066 [Steve Henson] 8067 8068 *) Add variants des_set_key_checked and des_set_key_unchecked of 8069 des_set_key (aka des_key_sched). Global variable des_check_key 8070 decides which of these is called by des_set_key; this way 8071 des_check_key behaves as it always did, but applications and 8072 the library itself, which was buggy for des_check_key == 1, 8073 have a cleaner way to pick the version they need. 8074 [Bodo Moeller] 8075 8076 *) New function PKCS12_newpass() which changes the password of a 8077 PKCS12 structure. 8078 [Steve Henson] 8079 8080 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8081 dynamic mix. In both cases the ids can be used as an index into the 8082 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8083 functions so they accept a list of the field values and the 8084 application doesn't need to directly manipulate the X509_TRUST 8085 structure. 8086 [Steve Henson] 8087 8088 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8089 need initialising. 8090 [Steve Henson] 8091 8092 *) Modify the way the V3 extension code looks up extensions. This now 8093 works in a similar way to the object code: we have some "standard" 8094 extensions in a static table which is searched with OBJ_bsearch() 8095 and the application can add dynamic ones if needed. The file 8096 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8097 updated whenever a new extension is added to the core code and kept 8098 in ext_nid order. There is a simple program 'tabtest.c' which checks 8099 this. New extensions are not added too often so this file can readily 8100 be maintained manually. 8101 8102 There are two big advantages in doing things this way. The extensions 8103 can be looked up immediately and no longer need to be "added" using 8104 X509V3_add_standard_extensions(): this function now does nothing. 8105 [Side note: I get *lots* of email saying the extension code doesn't 8106 work because people forget to call this function] 8107 Also no dynamic allocation is done unless new extensions are added: 8108 so if we don't add custom extensions there is no need to call 8109 X509V3_EXT_cleanup(). 8110 [Steve Henson] 8111 8112 *) Modify enc utility's salting as follows: make salting the default. Add a 8113 magic header, so unsalted files fail gracefully instead of just decrypting 8114 to garbage. This is because not salting is a big security hole, so people 8115 should be discouraged from doing it. 8116 [Ben Laurie] 8117 8118 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8119 digest to be passed on the command line but it only used this 8120 parameter when signing a certificate. Modified so all relevant 8121 operations are affected by the digest parameter including the 8122 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8123 DSA key was used because it didn't fix the digest. 8124 [Steve Henson] 8125 8126 *) Initial certificate chain verify code. Currently tests the untrusted 8127 certificates for consistency with the verify purpose (which is set 8128 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8129 8130 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8131 this is because it will reject chains with invalid extensions whereas 8132 every previous version of OpenSSL and SSLeay made no checks at all. 8133 8134 Trust code: checks the root CA for the relevant trust settings. Trust 8135 settings have an initial value consistent with the verify purpose: e.g. 8136 if the verify purpose is for SSL client use it expects the CA to be 8137 trusted for SSL client use. However the default value can be changed to 8138 permit custom trust settings: one example of this would be to only trust 8139 certificates from a specific "secure" set of CAs. 8140 8141 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8142 which should be used for version portability: especially since the 8143 verify structure is likely to change more often now. 8144 8145 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8146 to set them. If not set then assume SSL clients will verify SSL servers 8147 and vice versa. 8148 8149 Two new options to the verify program: -untrusted allows a set of 8150 untrusted certificates to be passed in and -purpose which sets the 8151 intended purpose of the certificate. If a purpose is set then the 8152 new chain verify code is used to check extension consistency. 8153 [Steve Henson] 8154 8155 *) Support for the authority information access extension. 8156 [Steve Henson] 8157 8158 *) Modify RSA and DSA PEM read routines to transparently handle 8159 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8160 public keys in a format compatible with certificate 8161 SubjectPublicKeyInfo structures. Unfortunately there were already 8162 functions called *_PublicKey_* which used various odd formats so 8163 these are retained for compatibility: however the DSA variants were 8164 never in a public release so they have been deleted. Changed dsa/rsa 8165 utilities to handle the new format: note no releases ever handled public 8166 keys so we should be OK. 8167 8168 The primary motivation for this change is to avoid the same fiasco 8169 that dogs private keys: there are several incompatible private key 8170 formats some of which are standard and some OpenSSL specific and 8171 require various evil hacks to allow partial transparent handling and 8172 even then it doesn't work with DER formats. Given the option anything 8173 other than PKCS#8 should be dumped: but the other formats have to 8174 stay in the name of compatibility. 8175 8176 With public keys and the benefit of hindsight one standard format 8177 is used which works with EVP_PKEY, RSA or DSA structures: though 8178 it clearly returns an error if you try to read the wrong kind of key. 8179 8180 Added a -pubkey option to the 'x509' utility to output the public key. 8181 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8182 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8183 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8184 that do the same as the EVP_PKEY_assign_*() except they up the 8185 reference count of the added key (they don't "swallow" the 8186 supplied key). 8187 [Steve Henson] 8188 8189 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8190 CRLs would fail if the file contained no certificates or no CRLs: 8191 added a new function to read in both types and return the number 8192 read: this means that if none are read it will be an error. The 8193 DER versions of the certificate and CRL reader would always fail 8194 because it isn't possible to mix certificates and CRLs in DER format 8195 without choking one or the other routine. Changed this to just read 8196 a certificate: this is the best we can do. Also modified the code 8197 in apps/verify.c to take notice of return codes: it was previously 8198 attempting to read in certificates from NULL pointers and ignoring 8199 any errors: this is one reason why the cert and CRL reader seemed 8200 to work. It doesn't check return codes from the default certificate 8201 routines: these may well fail if the certificates aren't installed. 8202 [Steve Henson] 8203 8204 *) Code to support otherName option in GeneralName. 8205 [Steve Henson] 8206 8207 *) First update to verify code. Change the verify utility 8208 so it warns if it is passed a self signed certificate: 8209 for consistency with the normal behaviour. X509_verify 8210 has been modified to it will now verify a self signed 8211 certificate if *exactly* the same certificate appears 8212 in the store: it was previously impossible to trust a 8213 single self signed certificate. This means that: 8214 openssl verify ss.pem 8215 now gives a warning about a self signed certificate but 8216 openssl verify -CAfile ss.pem ss.pem 8217 is OK. 8218 [Steve Henson] 8219 8220 *) For servers, store verify_result in SSL_SESSION data structure 8221 (and add it to external session representation). 8222 This is needed when client certificate verifications fails, 8223 but an application-provided verification callback (set by 8224 SSL_CTX_set_cert_verify_callback) allows accepting the session 8225 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8226 but returns 1): When the session is reused, we have to set 8227 ssl->verify_result to the appropriate error code to avoid 8228 security holes. 8229 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8230 8231 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8232 case in PKCS7_dataInit() where the signed PKCS7 structure 8233 didn't contain any existing data because it was being created. 8234 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8235 8236 *) Add a salt to the key derivation routines in enc.c. This 8237 forms the first 8 bytes of the encrypted file. Also add a 8238 -S option to allow a salt to be input on the command line. 8239 [Steve Henson] 8240 8241 *) New function X509_cmp(). Oddly enough there wasn't a function 8242 to compare two certificates. We do this by working out the SHA1 8243 hash and comparing that. X509_cmp() will be needed by the trust 8244 code. 8245 [Steve Henson] 8246 8247 *) SSL_get1_session() is like SSL_get_session(), but increments 8248 the reference count in the SSL_SESSION returned. 8249 [Geoff Thorpe <geoff@eu.c2.net>] 8250 8251 *) Fix for 'req': it was adding a null to request attributes. 8252 Also change the X509_LOOKUP and X509_INFO code to handle 8253 certificate auxiliary information. 8254 [Steve Henson] 8255 8256 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8257 the 'enc' command. 8258 [Steve Henson] 8259 8260 *) Add the possibility to add extra information to the memory leak 8261 detecting output, to form tracebacks, showing from where each 8262 allocation was originated: CRYPTO_push_info("constant string") adds 8263 the string plus current file name and line number to a per-thread 8264 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8265 is like calling CYRPTO_pop_info() until the stack is empty. 8266 Also updated memory leak detection code to be multi-thread-safe. 8267 [Richard Levitte] 8268 8269 *) Add options -text and -noout to pkcs7 utility and delete the 8270 encryption options which never did anything. Update docs. 8271 [Steve Henson] 8272 8273 *) Add options to some of the utilities to allow the pass phrase 8274 to be included on either the command line (not recommended on 8275 OSes like Unix) or read from the environment. Update the 8276 manpages and fix a few bugs. 8277 [Steve Henson] 8278 8279 *) Add a few manpages for some of the openssl commands. 8280 [Steve Henson] 8281 8282 *) Fix the -revoke option in ca. It was freeing up memory twice, 8283 leaking and not finding already revoked certificates. 8284 [Steve Henson] 8285 8286 *) Extensive changes to support certificate auxiliary information. 8287 This involves the use of X509_CERT_AUX structure and X509_AUX 8288 functions. An X509_AUX function such as PEM_read_X509_AUX() 8289 can still read in a certificate file in the usual way but it 8290 will also read in any additional "auxiliary information". By 8291 doing things this way a fair degree of compatibility can be 8292 retained: existing certificates can have this information added 8293 using the new 'x509' options. 8294 8295 Current auxiliary information includes an "alias" and some trust 8296 settings. The trust settings will ultimately be used in enhanced 8297 certificate chain verification routines: currently a certificate 8298 can only be trusted if it is self signed and then it is trusted 8299 for all purposes. 8300 [Steve Henson] 8301 8302 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8303 The problem was that one of the replacement routines had not been working 8304 since SSLeay releases. For now the offending routine has been replaced 8305 with non-optimised assembler. Even so, this now gives around 95% 8306 performance improvement for 1024 bit RSA signs. 8307 [Mark Cox] 8308 8309 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8310 handling. Most clients have the effective key size in bits equal to 8311 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8312 A few however don't do this and instead use the size of the decrypted key 8313 to determine the RC2 key length and the AlgorithmIdentifier to determine 8314 the effective key length. In this case the effective key length can still 8315 be 40 bits but the key length can be 168 bits for example. This is fixed 8316 by manually forcing an RC2 key into the EVP_PKEY structure because the 8317 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8318 the key length and effective key length are equal. 8319 [Steve Henson] 8320 8321 *) Add a bunch of functions that should simplify the creation of 8322 X509_NAME structures. Now you should be able to do: 8323 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8324 and have it automatically work out the correct field type and fill in 8325 the structures. The more adventurous can try: 8326 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8327 and it will (hopefully) work out the correct multibyte encoding. 8328 [Steve Henson] 8329 8330 *) Change the 'req' utility to use the new field handling and multibyte 8331 copy routines. Before the DN field creation was handled in an ad hoc 8332 way in req, ca, and x509 which was rather broken and didn't support 8333 BMPStrings or UTF8Strings. Since some software doesn't implement 8334 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8335 using the dirstring_type option. See the new comment in the default 8336 openssl.cnf for more info. 8337 [Steve Henson] 8338 8339 *) Make crypto/rand/md_rand.c more robust: 8340 - Assure unique random numbers after fork(). 8341 - Make sure that concurrent threads access the global counter and 8342 md serializably so that we never lose entropy in them 8343 or use exactly the same state in multiple threads. 8344 Access to the large state is not always serializable because 8345 the additional locking could be a performance killer, and 8346 md should be large enough anyway. 8347 [Bodo Moeller] 8348 8349 *) New file apps/app_rand.c with commonly needed functionality 8350 for handling the random seed file. 8351 8352 Use the random seed file in some applications that previously did not: 8353 ca, 8354 dsaparam -genkey (which also ignored its '-rand' option), 8355 s_client, 8356 s_server, 8357 x509 (when signing). 8358 Except on systems with /dev/urandom, it is crucial to have a random 8359 seed file at least for key creation, DSA signing, and for DH exchanges; 8360 for RSA signatures we could do without one. 8361 8362 gendh and gendsa (unlike genrsa) used to read only the first byte 8363 of each file listed in the '-rand' option. The function as previously 8364 found in genrsa is now in app_rand.c and is used by all programs 8365 that support '-rand'. 8366 [Bodo Moeller] 8367 8368 *) In RAND_write_file, use mode 0600 for creating files; 8369 don't just chmod when it may be too late. 8370 [Bodo Moeller] 8371 8372 *) Report an error from X509_STORE_load_locations 8373 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8374 [Bill Perry] 8375 8376 *) New function ASN1_mbstring_copy() this copies a string in either 8377 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8378 into an ASN1_STRING type. A mask of permissible types is passed 8379 and it chooses the "minimal" type to use or an error if not type 8380 is suitable. 8381 [Steve Henson] 8382 8383 *) Add function equivalents to the various macros in asn1.h. The old 8384 macros are retained with an M_ prefix. Code inside the library can 8385 use the M_ macros. External code (including the openssl utility) 8386 should *NOT* in order to be "shared library friendly". 8387 [Steve Henson] 8388 8389 *) Add various functions that can check a certificate's extensions 8390 to see if it usable for various purposes such as SSL client, 8391 server or S/MIME and CAs of these types. This is currently 8392 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8393 verification. Also added a -purpose flag to x509 utility to 8394 print out all the purposes. 8395 [Steve Henson] 8396 8397 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8398 functions. 8399 [Steve Henson] 8400 8401 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8402 for, obtain and decode and extension and obtain its critical flag. 8403 This allows all the necessary extension code to be handled in a 8404 single function call. 8405 [Steve Henson] 8406 8407 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8408 platforms. See crypto/rc4/rc4_enc.c for further details. 8409 [Andy Polyakov] 8410 8411 *) New -noout option to asn1parse. This causes no output to be produced 8412 its main use is when combined with -strparse and -out to extract data 8413 from a file (which may not be in ASN.1 format). 8414 [Steve Henson] 8415 8416 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8417 when producing the local key id. 8418 [Richard Levitte <levitte@stacken.kth.se>] 8419 8420 *) New option -dhparam in s_server. This allows a DH parameter file to be 8421 stated explicitly. If it is not stated then it tries the first server 8422 certificate file. The previous behaviour hard coded the filename 8423 "server.pem". 8424 [Steve Henson] 8425 8426 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8427 a public key to be input or output. For example: 8428 openssl rsa -in key.pem -pubout -out pubkey.pem 8429 Also added necessary DSA public key functions to handle this. 8430 [Steve Henson] 8431 8432 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8433 in the message. This was handled by allowing 8434 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8435 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8436 8437 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8438 to the end of the strings whereas this didn't. This would cause problems 8439 if strings read with d2i_ASN1_bytes() were later modified. 8440 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8441 8442 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8443 data and it contains EOF it will end up returning an error. This is 8444 caused by input 46 bytes long. The cause is due to the way base64 8445 BIOs find the start of base64 encoded data. They do this by trying a 8446 trial decode on each line until they find one that works. When they 8447 do a flag is set and it starts again knowing it can pass all the 8448 data directly through the decoder. Unfortunately it doesn't reset 8449 the context it uses. This means that if EOF is reached an attempt 8450 is made to pass two EOFs through the context and this causes the 8451 resulting error. This can also cause other problems as well. As is 8452 usual with these problems it takes *ages* to find and the fix is 8453 trivial: move one line. 8454 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8455 8456 *) Ugly workaround to get s_client and s_server working under Windows. The 8457 old code wouldn't work because it needed to select() on sockets and the 8458 tty (for keypresses and to see if data could be written). Win32 only 8459 supports select() on sockets so we select() with a 1s timeout on the 8460 sockets and then see if any characters are waiting to be read, if none 8461 are present then we retry, we also assume we can always write data to 8462 the tty. This isn't nice because the code then blocks until we've 8463 received a complete line of data and it is effectively polling the 8464 keyboard at 1s intervals: however it's quite a bit better than not 8465 working at all :-) A dedicated Windows application might handle this 8466 with an event loop for example. 8467 [Steve Henson] 8468 8469 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8470 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8471 will be called when RSA_sign() and RSA_verify() are used. This is useful 8472 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8473 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8474 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8475 This necessitated the support of an extra signature type NID_md5_sha1 8476 for SSL signatures and modifications to the SSL library to use it instead 8477 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8478 [Steve Henson] 8479 8480 *) Add new -verify -CAfile and -CApath options to the crl program, these 8481 will lookup a CRL issuers certificate and verify the signature in a 8482 similar way to the verify program. Tidy up the crl program so it 8483 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8484 less strict. It will now permit CRL extensions even if it is not 8485 a V2 CRL: this will allow it to tolerate some broken CRLs. 8486 [Steve Henson] 8487 8488 *) Initialize all non-automatic variables each time one of the openssl 8489 sub-programs is started (this is necessary as they may be started 8490 multiple times from the "OpenSSL>" prompt). 8491 [Lennart Bang, Bodo Moeller] 8492 8493 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8494 removing all other RSA functionality (this is what NO_RSA does). This 8495 is so (for example) those in the US can disable those operations covered 8496 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8497 key generation. 8498 [Steve Henson] 8499 8500 *) Non-copying interface to BIO pairs. 8501 (still largely untested) 8502 [Bodo Moeller] 8503 8504 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8505 ASCII string. This was handled independently in various places before. 8506 [Steve Henson] 8507 8508 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8509 UTF8 strings a character at a time. 8510 [Steve Henson] 8511 8512 *) Use client_version from client hello to select the protocol 8513 (s23_srvr.c) and for RSA client key exchange verification 8514 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8515 [Bodo Moeller] 8516 8517 *) Add various utility functions to handle SPKACs, these were previously 8518 handled by poking round in the structure internals. Added new function 8519 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8520 print, verify and generate SPKACs. Based on an original idea from 8521 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8522 [Steve Henson] 8523 8524 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8525 [Andy Polyakov] 8526 8527 *) Allow the config file extension section to be overwritten on the 8528 command line. Based on an original idea from Massimiliano Pala 8529 <madwolf@comune.modena.it>. The new option is called -extensions 8530 and can be applied to ca, req and x509. Also -reqexts to override 8531 the request extensions in req and -crlexts to override the crl extensions 8532 in ca. 8533 [Steve Henson] 8534 8535 *) Add new feature to the SPKAC handling in ca. Now you can include 8536 the same field multiple times by preceding it by "XXXX." for example: 8537 1.OU="Unit name 1" 8538 2.OU="Unit name 2" 8539 this is the same syntax as used in the req config file. 8540 [Steve Henson] 8541 8542 *) Allow certificate extensions to be added to certificate requests. These 8543 are specified in a 'req_extensions' option of the req section of the 8544 config file. They can be printed out with the -text option to req but 8545 are otherwise ignored at present. 8546 [Steve Henson] 8547 8548 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8549 data read consists of only the final block it would not decrypted because 8550 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8551 A misplaced 'break' also meant the decrypted final block might not be 8552 copied until the next read. 8553 [Steve Henson] 8554 8555 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8556 a few extra parameters to the DH structure: these will be useful if 8557 for example we want the value of 'q' or implement X9.42 DH. 8558 [Steve Henson] 8559 8560 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8561 provides hooks that allow the default DSA functions or functions on a 8562 "per key" basis to be replaced. This allows hardware acceleration and 8563 hardware key storage to be handled without major modification to the 8564 library. Also added low level modexp hooks and CRYPTO_EX structure and 8565 associated functions. 8566 [Steve Henson] 8567 8568 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8569 as "read only": it can't be written to and the buffer it points to will 8570 not be freed. Reading from a read only BIO is much more efficient than 8571 a normal memory BIO. This was added because there are several times when 8572 an area of memory needs to be read from a BIO. The previous method was 8573 to create a memory BIO and write the data to it, this results in two 8574 copies of the data and an O(n^2) reading algorithm. There is a new 8575 function BIO_new_mem_buf() which creates a read only memory BIO from 8576 an area of memory. Also modified the PKCS#7 routines to use read only 8577 memory BIOs. 8578 [Steve Henson] 8579 8580 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8581 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8582 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8583 but a retry condition occured while trying to read the rest. 8584 [Bodo Moeller] 8585 8586 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8587 NID_pkcs7_encrypted by default: this was wrong since this should almost 8588 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8589 the encrypted data type: this is a more sensible place to put it and it 8590 allows the PKCS#12 code to be tidied up that duplicated this 8591 functionality. 8592 [Steve Henson] 8593 8594 *) Changed obj_dat.pl script so it takes its input and output files on 8595 the command line. This should avoid shell escape redirection problems 8596 under Win32. 8597 [Steve Henson] 8598 8599 *) Initial support for certificate extension requests, these are included 8600 in things like Xenroll certificate requests. Included functions to allow 8601 extensions to be obtained and added. 8602 [Steve Henson] 8603 8604 *) -crlf option to s_client and s_server for sending newlines as 8605 CRLF (as required by many protocols). 8606 [Bodo Moeller] 8607 8608 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8609 8610 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8611 [Ralf S. Engelschall] 8612 8613 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8614 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8615 8616 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8617 program. 8618 [Steve Henson] 8619 8620 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8621 DH parameters/keys (q is lost during that conversion, but the resulting 8622 DH parameters contain its length). 8623 8624 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8625 much faster than DH_generate_parameters (which creates parameters 8626 where p = 2*q + 1), and also the smaller q makes DH computations 8627 much more efficient (160-bit exponentiation instead of 1024-bit 8628 exponentiation); so this provides a convenient way to support DHE 8629 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8630 utter importance to use 8631 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8632 or 8633 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8634 when such DH parameters are used, because otherwise small subgroup 8635 attacks may become possible! 8636 [Bodo Moeller] 8637 8638 *) Avoid memory leak in i2d_DHparams. 8639 [Bodo Moeller] 8640 8641 *) Allow the -k option to be used more than once in the enc program: 8642 this allows the same encrypted message to be read by multiple recipients. 8643 [Steve Henson] 8644 8645 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8646 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8647 it will always use the numerical form of the OID, even if it has a short 8648 or long name. 8649 [Steve Henson] 8650 8651 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8652 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8653 otherwise bn_mod_exp was called. In the case of hardware keys for example 8654 no private key components need be present and it might store extra data 8655 in the RSA structure, which cannot be accessed from bn_mod_exp. 8656 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8657 private key operations. 8658 [Steve Henson] 8659 8660 *) Added support for SPARC Linux. 8661 [Andy Polyakov] 8662 8663 *) pem_password_cb function type incompatibly changed from 8664 typedef int pem_password_cb(char *buf, int size, int rwflag); 8665 to 8666 ....(char *buf, int size, int rwflag, void *userdata); 8667 so that applications can pass data to their callbacks: 8668 The PEM[_ASN1]_{read,write}... functions and macros now take an 8669 additional void * argument, which is just handed through whenever 8670 the password callback is called. 8671 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8672 8673 New function SSL_CTX_set_default_passwd_cb_userdata. 8674 8675 Compatibility note: As many C implementations push function arguments 8676 onto the stack in reverse order, the new library version is likely to 8677 interoperate with programs that have been compiled with the old 8678 pem_password_cb definition (PEM_whatever takes some data that 8679 happens to be on the stack as its last argument, and the callback 8680 just ignores this garbage); but there is no guarantee whatsoever that 8681 this will work. 8682 8683 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8684 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8685 problems not only on Windows, but also on some Unix platforms. 8686 To avoid problematic command lines, these definitions are now in an 8687 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8688 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8689 [Bodo Moeller] 8690 8691 *) MIPS III/IV assembler module is reimplemented. 8692 [Andy Polyakov] 8693 8694 *) More DES library cleanups: remove references to srand/rand and 8695 delete an unused file. 8696 [Ulf M�ller] 8697 8698 *) Add support for the the free Netwide assembler (NASM) under Win32, 8699 since not many people have MASM (ml) and it can be hard to obtain. 8700 This is currently experimental but it seems to work OK and pass all 8701 the tests. Check out INSTALL.W32 for info. 8702 [Steve Henson] 8703 8704 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8705 without temporary keys kept an extra copy of the server key, 8706 and connections with temporary keys did not free everything in case 8707 of an error. 8708 [Bodo Moeller] 8709 8710 *) New function RSA_check_key and new openssl rsa option -check 8711 for verifying the consistency of RSA keys. 8712 [Ulf Moeller, Bodo Moeller] 8713 8714 *) Various changes to make Win32 compile work: 8715 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8716 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8717 comparison" warnings. 8718 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8719 [Steve Henson] 8720 8721 *) Add a debugging option to PKCS#5 v2 key generation function: when 8722 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8723 derived keys are printed to stderr. 8724 [Steve Henson] 8725 8726 *) Copy the flags in ASN1_STRING_dup(). 8727 [Roman E. Pavlov <pre@mo.msk.ru>] 8728 8729 *) The x509 application mishandled signing requests containing DSA 8730 keys when the signing key was also DSA and the parameters didn't match. 8731 8732 It was supposed to omit the parameters when they matched the signing key: 8733 the verifying software was then supposed to automatically use the CA's 8734 parameters if they were absent from the end user certificate. 8735 8736 Omitting parameters is no longer recommended. The test was also 8737 the wrong way round! This was probably due to unusual behaviour in 8738 EVP_cmp_parameters() which returns 1 if the parameters match. 8739 This meant that parameters were omitted when they *didn't* match and 8740 the certificate was useless. Certificates signed with 'ca' didn't have 8741 this bug. 8742 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8743 8744 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8745 The interface is as follows: 8746 Applications can use 8747 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8748 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8749 "off" is now the default. 8750 The library internally uses 8751 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8752 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8753 to disable memory-checking temporarily. 8754 8755 Some inconsistent states that previously were possible (and were 8756 even the default) are now avoided. 8757 8758 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8759 with each memory chunk allocated; this is occasionally more helpful 8760 than just having a counter. 8761 8762 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8763 8764 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8765 extensions. 8766 [Bodo Moeller] 8767 8768 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8769 which largely parallels "options", but is for changing API behaviour, 8770 whereas "options" are about protocol behaviour. 8771 Initial "mode" flags are: 8772 8773 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8774 a single record has been written. 8775 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8776 retries use the same buffer location. 8777 (But all of the contents must be 8778 copied!) 8779 [Bodo Moeller] 8780 8781 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8782 worked. 8783 8784 *) Fix problems with no-hmac etc. 8785 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8786 8787 *) New functions RSA_get_default_method(), RSA_set_method() and 8788 RSA_get_method(). These allows replacement of RSA_METHODs without having 8789 to mess around with the internals of an RSA structure. 8790 [Steve Henson] 8791 8792 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8793 Also really enable memory leak checks in openssl.c and in some 8794 test programs. 8795 [Chad C. Mulligan, Bodo Moeller] 8796 8797 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 8798 up the length of negative integers. This has now been simplified to just 8799 store the length when it is first determined and use it later, rather 8800 than trying to keep track of where data is copied and updating it to 8801 point to the end. 8802 [Steve Henson, reported by Brien Wheeler 8803 <bwheeler@authentica-security.com>] 8804 8805 *) Add a new function PKCS7_signatureVerify. This allows the verification 8806 of a PKCS#7 signature but with the signing certificate passed to the 8807 function itself. This contrasts with PKCS7_dataVerify which assumes the 8808 certificate is present in the PKCS#7 structure. This isn't always the 8809 case: certificates can be omitted from a PKCS#7 structure and be 8810 distributed by "out of band" means (such as a certificate database). 8811 [Steve Henson] 8812 8813 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 8814 function prototypes in pem.h, also change util/mkdef.pl to add the 8815 necessary function names. 8816 [Steve Henson] 8817 8818 *) mk1mf.pl (used by Windows builds) did not properly read the 8819 options set by Configure in the top level Makefile, and Configure 8820 was not even able to write more than one option correctly. 8821 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 8822 [Bodo Moeller] 8823 8824 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 8825 file to be loaded from a BIO or FILE pointer. The BIO version will 8826 for example allow memory BIOs to contain config info. 8827 [Steve Henson] 8828 8829 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 8830 Whoever hopes to achieve shared-library compatibility across versions 8831 must use this, not the compile-time macro. 8832 (Exercise 0.9.4: Which is the minimum library version required by 8833 such programs?) 8834 Note: All this applies only to multi-threaded programs, others don't 8835 need locks. 8836 [Bodo Moeller] 8837 8838 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 8839 through a BIO pair triggered the default case, i.e. 8840 SSLerr(...,SSL_R_UNKNOWN_STATE). 8841 [Bodo Moeller] 8842 8843 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 8844 can use the SSL library even if none of the specific BIOs is 8845 appropriate. 8846 [Bodo Moeller] 8847 8848 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 8849 for the encoded length. 8850 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 8851 8852 *) Add initial documentation of the X509V3 functions. 8853 [Steve Henson] 8854 8855 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 8856 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 8857 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 8858 secure PKCS#8 private key format with a high iteration count. 8859 [Steve Henson] 8860 8861 *) Fix determination of Perl interpreter: A perl or perl5 8862 _directory_ in $PATH was also accepted as the interpreter. 8863 [Ralf S. Engelschall] 8864 8865 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 8866 wrong with it but it was very old and did things like calling 8867 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 8868 unusual formatting. 8869 [Steve Henson] 8870 8871 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 8872 to use the new extension code. 8873 [Steve Henson] 8874 8875 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 8876 with macros. This should make it easier to change their form, add extra 8877 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 8878 constant. 8879 [Steve Henson] 8880 8881 *) Add to configuration table a new entry that can specify an alternative 8882 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 8883 according to Mark Crispin <MRC@Panda.COM>. 8884 [Bodo Moeller] 8885 8886#if 0 8887 *) DES CBC did not update the IV. Weird. 8888 [Ben Laurie] 8889#else 8890 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 8891 Changing the behaviour of the former might break existing programs -- 8892 where IV updating is needed, des_ncbc_encrypt can be used. 8893#endif 8894 8895 *) When bntest is run from "make test" it drives bc to check its 8896 calculations, as well as internally checking them. If an internal check 8897 fails, it needs to cause bc to give a non-zero result or make test carries 8898 on without noticing the failure. Fixed. 8899 [Ben Laurie] 8900 8901 *) DES library cleanups. 8902 [Ulf M�ller] 8903 8904 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 8905 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 8906 ciphers. NOTE: although the key derivation function has been verified 8907 against some published test vectors it has not been extensively tested 8908 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 8909 of v2.0. 8910 [Steve Henson] 8911 8912 *) Instead of "mkdir -p", which is not fully portable, use new 8913 Perl script "util/mkdir-p.pl". 8914 [Bodo Moeller] 8915 8916 *) Rewrite the way password based encryption (PBE) is handled. It used to 8917 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 8918 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 8919 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 8920 the 'parameter' field of the AlgorithmIdentifier is passed to the 8921 underlying key generation function so it must do its own ASN1 parsing. 8922 This has also changed the EVP_PBE_CipherInit() function which now has a 8923 'parameter' argument instead of literal salt and iteration count values 8924 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 8925 [Steve Henson] 8926 8927 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 8928 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 8929 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 8930 KEY" because this clashed with PKCS#8 unencrypted string. Since this 8931 value was just used as a "magic string" and not used directly its 8932 value doesn't matter. 8933 [Steve Henson] 8934 8935 *) Introduce some semblance of const correctness to BN. Shame C doesn't 8936 support mutable. 8937 [Ben Laurie] 8938 8939 *) "linux-sparc64" configuration (ultrapenguin). 8940 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 8941 "linux-sparc" configuration. 8942 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 8943 8944 *) config now generates no-xxx options for missing ciphers. 8945 [Ulf M�ller] 8946 8947 *) Support the EBCDIC character set (work in progress). 8948 File ebcdic.c not yet included because it has a different license. 8949 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8950 8951 *) Support BS2000/OSD-POSIX. 8952 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8953 8954 *) Make callbacks for key generation use void * instead of char *. 8955 [Ben Laurie] 8956 8957 *) Make S/MIME samples compile (not yet tested). 8958 [Ben Laurie] 8959 8960 *) Additional typesafe stacks. 8961 [Ben Laurie] 8962 8963 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 8964 [Bodo Moeller] 8965 8966 8967 Changes between 0.9.3 and 0.9.3a [29 May 1999] 8968 8969 *) New configuration variant "sco5-gcc". 8970 8971 *) Updated some demos. 8972 [Sean O Riordain, Wade Scholine] 8973 8974 *) Add missing BIO_free at exit of pkcs12 application. 8975 [Wu Zhigang] 8976 8977 *) Fix memory leak in conf.c. 8978 [Steve Henson] 8979 8980 *) Updates for Win32 to assembler version of MD5. 8981 [Steve Henson] 8982 8983 *) Set #! path to perl in apps/der_chop to where we found it 8984 instead of using a fixed path. 8985 [Bodo Moeller] 8986 8987 *) SHA library changes for irix64-mips4-cc. 8988 [Andy Polyakov] 8989 8990 *) Improvements for VMS support. 8991 [Richard Levitte] 8992 8993 8994 Changes between 0.9.2b and 0.9.3 [24 May 1999] 8995 8996 *) Bignum library bug fix. IRIX 6 passes "make test" now! 8997 This also avoids the problems with SC4.2 and unpatched SC5. 8998 [Andy Polyakov <appro@fy.chalmers.se>] 8999 9000 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9001 These are required because of the typesafe stack would otherwise break 9002 existing code. If old code used a structure member which used to be STACK 9003 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9004 sk_num or sk_value it would produce an error because the num, data members 9005 are not present in STACK_OF. Now it just produces a warning. sk_set 9006 replaces the old method of assigning a value to sk_value 9007 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9008 that does this will no longer work (and should use sk_set instead) but 9009 this could be regarded as a "questionable" behaviour anyway. 9010 [Steve Henson] 9011 9012 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9013 correctly handle encrypted S/MIME data. 9014 [Steve Henson] 9015 9016 *) Change type of various DES function arguments from des_cblock 9017 (which means, in function argument declarations, pointer to char) 9018 to des_cblock * (meaning pointer to array with 8 char elements), 9019 which allows the compiler to do more typechecking; it was like 9020 that back in SSLeay, but with lots of ugly casts. 9021 9022 Introduce new type const_des_cblock. 9023 [Bodo Moeller] 9024 9025 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9026 problems: find RecipientInfo structure that matches recipient certificate 9027 and initialise the ASN1 structures properly based on passed cipher. 9028 [Steve Henson] 9029 9030 *) Belatedly make the BN tests actually check the results. 9031 [Ben Laurie] 9032 9033 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9034 to and from BNs: it was completely broken. New compilation option 9035 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9036 key elements as negative integers. 9037 [Steve Henson] 9038 9039 *) Reorganize and speed up MD5. 9040 [Andy Polyakov <appro@fy.chalmers.se>] 9041 9042 *) VMS support. 9043 [Richard Levitte <richard@levitte.org>] 9044 9045 *) New option -out to asn1parse to allow the parsed structure to be 9046 output to a file. This is most useful when combined with the -strparse 9047 option to examine the output of things like OCTET STRINGS. 9048 [Steve Henson] 9049 9050 *) Make SSL library a little more fool-proof by not requiring any longer 9051 that SSL_set_{accept,connect}_state be called before 9052 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9053 in many applications because usually everything *appeared* to work as 9054 intended anyway -- now it really works as intended). 9055 [Bodo Moeller] 9056 9057 *) Move openssl.cnf out of lib/. 9058 [Ulf M�ller] 9059 9060 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9061 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9062 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9063 [Ralf S. Engelschall] 9064 9065 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9066 handle PKCS#7 enveloped data properly. 9067 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9068 9069 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9070 copying pointers. The cert_st handling is changed by this in 9071 various ways (and thus what used to be known as ctx->default_cert 9072 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9073 any longer when s->cert does not give us what we need). 9074 ssl_cert_instantiate becomes obsolete by this change. 9075 As soon as we've got the new code right (possibly it already is?), 9076 we have solved a couple of bugs of the earlier code where s->cert 9077 was used as if it could not have been shared with other SSL structures. 9078 9079 Note that using the SSL API in certain dirty ways now will result 9080 in different behaviour than observed with earlier library versions: 9081 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9082 does not influence s as it used to. 9083 9084 In order to clean up things more thoroughly, inside SSL_SESSION 9085 we don't use CERT any longer, but a new structure SESS_CERT 9086 that holds per-session data (if available); currently, this is 9087 the peer's certificate chain and, for clients, the server's certificate 9088 and temporary key. CERT holds only those values that can have 9089 meaningful defaults in an SSL_CTX. 9090 [Bodo Moeller] 9091 9092 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9093 from the internal representation. Various PKCS#7 fixes: remove some 9094 evil casts and set the enc_dig_alg field properly based on the signing 9095 key type. 9096 [Steve Henson] 9097 9098 *) Allow PKCS#12 password to be set from the command line or the 9099 environment. Let 'ca' get its config file name from the environment 9100 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9101 and 'x509'). 9102 [Steve Henson] 9103 9104 *) Allow certificate policies extension to use an IA5STRING for the 9105 organization field. This is contrary to the PKIX definition but 9106 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9107 extension option. 9108 [Steve Henson] 9109 9110 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9111 without disallowing inline assembler and the like for non-pedantic builds. 9112 [Ben Laurie] 9113 9114 *) Support Borland C++ builder. 9115 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9116 9117 *) Support Mingw32. 9118 [Ulf M�ller] 9119 9120 *) SHA-1 cleanups and performance enhancements. 9121 [Andy Polyakov <appro@fy.chalmers.se>] 9122 9123 *) Sparc v8plus assembler for the bignum library. 9124 [Andy Polyakov <appro@fy.chalmers.se>] 9125 9126 *) Accept any -xxx and +xxx compiler options in Configure. 9127 [Ulf M�ller] 9128 9129 *) Update HPUX configuration. 9130 [Anonymous] 9131 9132 *) Add missing sk_<type>_unshift() function to safestack.h 9133 [Ralf S. Engelschall] 9134 9135 *) New function SSL_CTX_use_certificate_chain_file that sets the 9136 "extra_cert"s in addition to the certificate. (This makes sense 9137 only for "PEM" format files, as chains as a whole are not 9138 DER-encoded.) 9139 [Bodo Moeller] 9140 9141 *) Support verify_depth from the SSL API. 9142 x509_vfy.c had what can be considered an off-by-one-error: 9143 Its depth (which was not part of the external interface) 9144 was actually counting the number of certificates in a chain; 9145 now it really counts the depth. 9146 [Bodo Moeller] 9147 9148 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9149 instead of X509err, which often resulted in confusing error 9150 messages since the error codes are not globally unique 9151 (e.g. an alleged error in ssl3_accept when a certificate 9152 didn't match the private key). 9153 9154 *) New function SSL_CTX_set_session_id_context that allows to set a default 9155 value (so that you don't need SSL_set_session_id_context for each 9156 connection using the SSL_CTX). 9157 [Bodo Moeller] 9158 9159 *) OAEP decoding bug fix. 9160 [Ulf M�ller] 9161 9162 *) Support INSTALL_PREFIX for package builders, as proposed by 9163 David Harris. 9164 [Bodo Moeller] 9165 9166 *) New Configure options "threads" and "no-threads". For systems 9167 where the proper compiler options are known (currently Solaris 9168 and Linux), "threads" is the default. 9169 [Bodo Moeller] 9170 9171 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9172 [Bodo Moeller] 9173 9174 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9175 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9176 such as /usr/local/bin. 9177 [Bodo Moeller] 9178 9179 *) "make linux-shared" to build shared libraries. 9180 [Niels Poppe <niels@netbox.org>] 9181 9182 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9183 [Ulf M�ller] 9184 9185 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9186 extension adding in x509 utility. 9187 [Steve Henson] 9188 9189 *) Remove NOPROTO sections and error code comments. 9190 [Ulf M�ller] 9191 9192 *) Partial rewrite of the DEF file generator to now parse the ANSI 9193 prototypes. 9194 [Steve Henson] 9195 9196 *) New Configure options --prefix=DIR and --openssldir=DIR. 9197 [Ulf M�ller] 9198 9199 *) Complete rewrite of the error code script(s). It is all now handled 9200 by one script at the top level which handles error code gathering, 9201 header rewriting and C source file generation. It should be much better 9202 than the old method: it now uses a modified version of Ulf's parser to 9203 read the ANSI prototypes in all header files (thus the old K&R definitions 9204 aren't needed for error creation any more) and do a better job of 9205 translating function codes into names. The old 'ASN1 error code imbedded 9206 in a comment' is no longer necessary and it doesn't use .err files which 9207 have now been deleted. Also the error code call doesn't have to appear all 9208 on one line (which resulted in some large lines...). 9209 [Steve Henson] 9210 9211 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9212 [Bodo Moeller] 9213 9214 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9215 0 (which usually indicates a closed connection), but continue reading. 9216 [Bodo Moeller] 9217 9218 *) Fix some race conditions. 9219 [Bodo Moeller] 9220 9221 *) Add support for CRL distribution points extension. Add Certificate 9222 Policies and CRL distribution points documentation. 9223 [Steve Henson] 9224 9225 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9226 [Ulf M�ller] 9227 9228 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9229 8 of keying material. Merlin has also confirmed interop with this fix 9230 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9231 [Merlin Hughes <merlin@baltimore.ie>] 9232 9233 *) Fix lots of warnings. 9234 [Richard Levitte <levitte@stacken.kth.se>] 9235 9236 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9237 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9238 [Richard Levitte <levitte@stacken.kth.se>] 9239 9240 *) Fix problems with sizeof(long) == 8. 9241 [Andy Polyakov <appro@fy.chalmers.se>] 9242 9243 *) Change functions to ANSI C. 9244 [Ulf M�ller] 9245 9246 *) Fix typos in error codes. 9247 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9248 9249 *) Remove defunct assembler files from Configure. 9250 [Ulf M�ller] 9251 9252 *) SPARC v8 assembler BIGNUM implementation. 9253 [Andy Polyakov <appro@fy.chalmers.se>] 9254 9255 *) Support for Certificate Policies extension: both print and set. 9256 Various additions to support the r2i method this uses. 9257 [Steve Henson] 9258 9259 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9260 return a const string when you are expecting an allocated buffer. 9261 [Ben Laurie] 9262 9263 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9264 types DirectoryString and DisplayText. 9265 [Steve Henson] 9266 9267 *) Add code to allow r2i extensions to access the configuration database, 9268 add an LHASH database driver and add several ctx helper functions. 9269 [Steve Henson] 9270 9271 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9272 fail when they extended the size of a BIGNUM. 9273 [Steve Henson] 9274 9275 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9276 support typesafe stack. 9277 [Steve Henson] 9278 9279 *) Fix typo in SSL_[gs]et_options(). 9280 [Nils Frostberg <nils@medcom.se>] 9281 9282 *) Delete various functions and files that belonged to the (now obsolete) 9283 old X509V3 handling code. 9284 [Steve Henson] 9285 9286 *) New Configure option "rsaref". 9287 [Ulf M�ller] 9288 9289 *) Don't auto-generate pem.h. 9290 [Bodo Moeller] 9291 9292 *) Introduce type-safe ASN.1 SETs. 9293 [Ben Laurie] 9294 9295 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9296 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9297 9298 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9299 that links with OpenSSL (well at least cause lots of warnings), but fear 9300 not: the conversion is trivial, and it eliminates loads of evil casts. A 9301 few STACKed things have been converted already. Feel free to convert more. 9302 In the fullness of time, I'll do away with the STACK type altogether. 9303 [Ben Laurie] 9304 9305 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9306 specified in <certfile> by updating the entry in the index.txt file. 9307 This way one no longer has to edit the index.txt file manually for 9308 revoking a certificate. The -revoke option does the gory details now. 9309 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9310 9311 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9312 `-text' option at all and this way the `-noout -text' combination was 9313 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9314 [Ralf S. Engelschall] 9315 9316 *) Make sure a corresponding plain text error message exists for the 9317 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9318 verify callback function determined that a certificate was revoked. 9319 [Ralf S. Engelschall] 9320 9321 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9322 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9323 all available cipers including rc5, which was forgotten until now. 9324 In order to let the testing shell script know which algorithms 9325 are available, a new (up to now undocumented) command 9326 "openssl list-cipher-commands" is used. 9327 [Bodo Moeller] 9328 9329 *) Bugfix: s_client occasionally would sleep in select() when 9330 it should have checked SSL_pending() first. 9331 [Bodo Moeller] 9332 9333 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9334 the raw DSA values prior to ASN.1 encoding. 9335 [Ulf M�ller] 9336 9337 *) Tweaks to Configure 9338 [Niels Poppe <niels@netbox.org>] 9339 9340 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9341 yet... 9342 [Steve Henson] 9343 9344 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9345 [Ulf M�ller] 9346 9347 *) New config option to avoid instructions that are illegal on the 80386. 9348 The default code is faster, but requires at least a 486. 9349 [Ulf M�ller] 9350 9351 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9352 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9353 same as SSL2_VERSION anyway. 9354 [Bodo Moeller] 9355 9356 *) New "-showcerts" option for s_client. 9357 [Bodo Moeller] 9358 9359 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9360 application. Various cleanups and fixes. 9361 [Steve Henson] 9362 9363 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9364 modify error routines to work internally. Add error codes and PBE init 9365 to library startup routines. 9366 [Steve Henson] 9367 9368 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9369 packing functions to asn1 and evp. Changed function names and error 9370 codes along the way. 9371 [Steve Henson] 9372 9373 *) PKCS12 integration: and so it begins... First of several patches to 9374 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9375 objects to objects.h 9376 [Steve Henson] 9377 9378 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9379 and display support for Thawte strong extranet extension. 9380 [Steve Henson] 9381 9382 *) Add LinuxPPC support. 9383 [Jeff Dubrule <igor@pobox.org>] 9384 9385 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9386 bn_div_words in alpha.s. 9387 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9388 9389 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9390 OAEP isn't supported when OpenSSL is built with RSAref. 9391 [Ulf Moeller <ulf@fitug.de>] 9392 9393 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9394 so they no longer are missing under -DNOPROTO. 9395 [Soren S. Jorvang <soren@t.dk>] 9396 9397 9398 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9399 9400 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9401 doesn't work when the session is reused. Coming soon! 9402 [Ben Laurie] 9403 9404 *) Fix a security hole, that allows sessions to be reused in the wrong 9405 context thus bypassing client cert protection! All software that uses 9406 client certs and session caches in multiple contexts NEEDS PATCHING to 9407 allow session reuse! A fuller solution is in the works. 9408 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9409 9410 *) Some more source tree cleanups (removed obsolete files 9411 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9412 permission on "config" script to be executable) and a fix for the INSTALL 9413 document. 9414 [Ulf Moeller <ulf@fitug.de>] 9415 9416 *) Remove some legacy and erroneous uses of malloc, free instead of 9417 Malloc, Free. 9418 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9419 9420 *) Make rsa_oaep_test return non-zero on error. 9421 [Ulf Moeller <ulf@fitug.de>] 9422 9423 *) Add support for native Solaris shared libraries. Configure 9424 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9425 if someone would make that last step automatic. 9426 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9427 9428 *) ctx_size was not built with the right compiler during "make links". Fixed. 9429 [Ben Laurie] 9430 9431 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9432 except NULL ciphers". This means the default cipher list will no longer 9433 enable NULL ciphers. They need to be specifically enabled e.g. with 9434 the string "DEFAULT:eNULL". 9435 [Steve Henson] 9436 9437 *) Fix to RSA private encryption routines: if p < q then it would 9438 occasionally produce an invalid result. This will only happen with 9439 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9440 [Steve Henson] 9441 9442 *) Be less restrictive and allow also `perl util/perlpath.pl 9443 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9444 because this way one can also use an interpreter named `perl5' (which is 9445 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9446 installed as `perl'). 9447 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9448 9449 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9450 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9451 9452 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9453 advapi32.lib to Win32 build and change the pem test comparision 9454 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9455 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9456 and crypto/des/ede_cbcm_enc.c. 9457 [Steve Henson] 9458 9459 *) DES quad checksum was broken on big-endian architectures. Fixed. 9460 [Ben Laurie] 9461 9462 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9463 Win32 test batch file so it (might) work again. The Win32 test batch file 9464 is horrible: I feel ill.... 9465 [Steve Henson] 9466 9467 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9468 in e_os.h. Audit of header files to check ANSI and non ANSI 9469 sections: 10 functions were absent from non ANSI section and not exported 9470 from Windows DLLs. Fixed up libeay.num for new functions. 9471 [Steve Henson] 9472 9473 *) Make `openssl version' output lines consistent. 9474 [Ralf S. Engelschall] 9475 9476 *) Fix Win32 symbol export lists for BIO functions: Added 9477 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9478 to ms/libeay{16,32}.def. 9479 [Ralf S. Engelschall] 9480 9481 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9482 fine under Unix and passes some trivial tests I've now added. But the 9483 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9484 added to make sure no one expects that this stuff really works in the 9485 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9486 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9487 openssl_bio.xs. 9488 [Ralf S. Engelschall] 9489 9490 *) Fix the generation of two part addresses in perl. 9491 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9492 9493 *) Add config entry for Linux on MIPS. 9494 [John Tobey <jtobey@channel1.com>] 9495 9496 *) Make links whenever Configure is run, unless we are on Windoze. 9497 [Ben Laurie] 9498 9499 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9500 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9501 in CRLs. 9502 [Steve Henson] 9503 9504 *) Add a useful kludge to allow package maintainers to specify compiler and 9505 other platforms details on the command line without having to patch the 9506 Configure script everytime: One now can use ``perl Configure 9507 <id>:<details>'', i.e. platform ids are allowed to have details appended 9508 to them (seperated by colons). This is treated as there would be a static 9509 pre-configured entry in Configure's %table under key <id> with value 9510 <details> and ``perl Configure <id>'' is called. So, when you want to 9511 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9512 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9513 now, which overrides the FreeBSD-elf entry on-the-fly. 9514 [Ralf S. Engelschall] 9515 9516 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9517 [Ben Laurie] 9518 9519 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9520 on the `perl Configure ...' command line. This way one can compile 9521 OpenSSL libraries with Position Independent Code (PIC) which is needed 9522 for linking it into DSOs. 9523 [Ralf S. Engelschall] 9524 9525 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9526 Fixed. 9527 [Ben Laurie] 9528 9529 *) Cleaned up the LICENSE document: The official contact for any license 9530 questions now is the OpenSSL core team under openssl-core@openssl.org. 9531 And add a paragraph about the dual-license situation to make sure people 9532 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9533 to the OpenSSL toolkit. 9534 [Ralf S. Engelschall] 9535 9536 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9537 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9538 Additonally cleaned up the `make links' target: Remove unnecessary 9539 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9540 to speed processing and no longer clutter the display with confusing 9541 stuff. Instead only the actually done links are displayed. 9542 [Ralf S. Engelschall] 9543 9544 *) Permit null encryption ciphersuites, used for authentication only. It used 9545 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9546 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9547 encryption. 9548 [Ben Laurie] 9549 9550 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9551 signed attributes when verifying signatures (this would break them), 9552 the detached data encoding was wrong and public keys obtained using 9553 X509_get_pubkey() weren't freed. 9554 [Steve Henson] 9555 9556 *) Add text documentation for the BUFFER functions. Also added a work around 9557 to a Win95 console bug. This was triggered by the password read stuff: the 9558 last character typed gets carried over to the next fread(). If you were 9559 generating a new cert request using 'req' for example then the last 9560 character of the passphrase would be CR which would then enter the first 9561 field as blank. 9562 [Steve Henson] 9563 9564 *) Added the new `Includes OpenSSL Cryptography Software' button as 9565 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9566 button and can be used by applications based on OpenSSL to show the 9567 relationship to the OpenSSL project. 9568 [Ralf S. Engelschall] 9569 9570 *) Remove confusing variables in function signatures in files 9571 ssl/ssl_lib.c and ssl/ssl.h. 9572 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9573 9574 *) Don't install bss_file.c under PREFIX/include/ 9575 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9576 9577 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9578 functions that return function pointers and has support for NT specific 9579 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9580 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9581 unsigned to signed types: this was killing the Win32 compile. 9582 [Steve Henson] 9583 9584 *) Add new certificate file to stack functions, 9585 SSL_add_dir_cert_subjects_to_stack() and 9586 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9587 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9588 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9589 This means that Apache-SSL and similar packages don't have to mess around 9590 to add as many CAs as they want to the preferred list. 9591 [Ben Laurie] 9592 9593 *) Experiment with doxygen documentation. Currently only partially applied to 9594 ssl/ssl_lib.c. 9595 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9596 openssl.doxy as the configuration file. 9597 [Ben Laurie] 9598 9599 *) Get rid of remaining C++-style comments which strict C compilers hate. 9600 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9601 9602 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9603 compiled in by default: it has problems with large keys. 9604 [Steve Henson] 9605 9606 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9607 DH private keys and/or callback functions which directly correspond to 9608 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9609 is needed for applications which have to configure certificates on a 9610 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9611 (e.g. s_server). 9612 For the RSA certificate situation is makes no difference, but 9613 for the DSA certificate situation this fixes the "no shared cipher" 9614 problem where the OpenSSL cipher selection procedure failed because the 9615 temporary keys were not overtaken from the context and the API provided 9616 no way to reconfigure them. 9617 The new functions now let applications reconfigure the stuff and they 9618 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9619 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9620 non-public-API function ssl_cert_instantiate() is used as a helper 9621 function and also to reduce code redundancy inside ssl_rsa.c. 9622 [Ralf S. Engelschall] 9623 9624 *) Move s_server -dcert and -dkey options out of the undocumented feature 9625 area because they are useful for the DSA situation and should be 9626 recognized by the users. 9627 [Ralf S. Engelschall] 9628 9629 *) Fix the cipher decision scheme for export ciphers: the export bits are 9630 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9631 SSL_EXP_MASK. So, the original variable has to be used instead of the 9632 already masked variable. 9633 [Richard Levitte <levitte@stacken.kth.se>] 9634 9635 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9636 [Richard Levitte <levitte@stacken.kth.se>] 9637 9638 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9639 from `int' to `unsigned int' because it's a length and initialized by 9640 EVP_DigestFinal() which expects an `unsigned int *'. 9641 [Richard Levitte <levitte@stacken.kth.se>] 9642 9643 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9644 script. Instead use the usual Shell->Perl transition trick. 9645 [Ralf S. Engelschall] 9646 9647 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9648 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9649 -noout -modulus' as it's already the case for `openssl rsa -noout 9650 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9651 currently the public key is printed (a decision which was already done by 9652 `openssl dsa -modulus' in the past) which serves a similar purpose. 9653 Additionally the NO_RSA no longer completely removes the whole -modulus 9654 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9655 now, too. 9656 [Ralf S. Engelschall] 9657 9658 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9659 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9660 [Arne Ansper <arne@ats.cyber.ee>] 9661 9662 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9663 to be added. Now both 'req' and 'ca' can use new objects defined in the 9664 config file. 9665 [Steve Henson] 9666 9667 *) Add cool BIO that does syslog (or event log on NT). 9668 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9669 9670 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9671 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9672 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9673 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9674 [Ben Laurie] 9675 9676 *) Add preliminary config info for new extension code. 9677 [Steve Henson] 9678 9679 *) Make RSA_NO_PADDING really use no padding. 9680 [Ulf Moeller <ulf@fitug.de>] 9681 9682 *) Generate errors when private/public key check is done. 9683 [Ben Laurie] 9684 9685 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9686 for some CRL extensions and new objects added. 9687 [Steve Henson] 9688 9689 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9690 key usage extension and fuller support for authority key id. 9691 [Steve Henson] 9692 9693 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9694 padding method for RSA, which is recommended for new applications in PKCS 9695 #1 v2.0 (RFC 2437, October 1998). 9696 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9697 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9698 against Bleichbacher's attack on RSA. 9699 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9700 Ben Laurie] 9701 9702 *) Updates to the new SSL compression code 9703 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9704 9705 *) Fix so that the version number in the master secret, when passed 9706 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9707 (because the server will not accept higher), that the version number 9708 is 0x03,0x01, not 0x03,0x00 9709 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9710 9711 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9712 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9713 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9714 [Steve Henson] 9715 9716 *) Support for RAW extensions where an arbitrary extension can be 9717 created by including its DER encoding. See apps/openssl.cnf for 9718 an example. 9719 [Steve Henson] 9720 9721 *) Make sure latest Perl versions don't interpret some generated C array 9722 code as Perl array code in the crypto/err/err_genc.pl script. 9723 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9724 9725 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9726 not many people have the assembler. Various Win32 compilation fixes and 9727 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9728 build instructions. 9729 [Steve Henson] 9730 9731 *) Modify configure script 'Configure' to automatically create crypto/date.h 9732 file under Win32 and also build pem.h from pem.org. New script 9733 util/mkfiles.pl to create the MINFO file on environments that can't do a 9734 'make files': perl util/mkfiles.pl >MINFO should work. 9735 [Steve Henson] 9736 9737 *) Major rework of DES function declarations, in the pursuit of correctness 9738 and purity. As a result, many evil casts evaporated, and some weirdness, 9739 too. You may find this causes warnings in your code. Zapping your evil 9740 casts will probably fix them. Mostly. 9741 [Ben Laurie] 9742 9743 *) Fix for a typo in asn1.h. Bug fix to object creation script 9744 obj_dat.pl. It considered a zero in an object definition to mean 9745 "end of object": none of the objects in objects.h have any zeros 9746 so it wasn't spotted. 9747 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9748 9749 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9750 Masking (CBCM). In the absence of test vectors, the best I have been able 9751 to do is check that the decrypt undoes the encrypt, so far. Send me test 9752 vectors if you have them. 9753 [Ben Laurie] 9754 9755 *) Correct calculation of key length for export ciphers (too much space was 9756 allocated for null ciphers). This has not been tested! 9757 [Ben Laurie] 9758 9759 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9760 message is now correct (it understands "crypto" and "ssl" on its 9761 command line). There is also now an "update" option. This will update 9762 the util/ssleay.num and util/libeay.num files with any new functions. 9763 If you do a: 9764 perl util/mkdef.pl crypto ssl update 9765 it will update them. 9766 [Steve Henson] 9767 9768 *) Overhauled the Perl interface (perl/*): 9769 - ported BN stuff to OpenSSL's different BN library 9770 - made the perl/ source tree CVS-aware 9771 - renamed the package from SSLeay to OpenSSL (the files still contain 9772 their history because I've copied them in the repository) 9773 - removed obsolete files (the test scripts will be replaced 9774 by better Test::Harness variants in the future) 9775 [Ralf S. Engelschall] 9776 9777 *) First cut for a very conservative source tree cleanup: 9778 1. merge various obsolete readme texts into doc/ssleay.txt 9779 where we collect the old documents and readme texts. 9780 2. remove the first part of files where I'm already sure that we no 9781 longer need them because of three reasons: either they are just temporary 9782 files which were left by Eric or they are preserved original files where 9783 I've verified that the diff is also available in the CVS via "cvs diff 9784 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9785 the crypto/md/ stuff). 9786 [Ralf S. Engelschall] 9787 9788 *) More extension code. Incomplete support for subject and issuer alt 9789 name, issuer and authority key id. Change the i2v function parameters 9790 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9791 what that's for :-) Fix to ASN1 macro which messed up 9792 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9793 [Steve Henson] 9794 9795 *) Preliminary support for ENUMERATED type. This is largely copied from the 9796 INTEGER code. 9797 [Steve Henson] 9798 9799 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 9800 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9801 9802 *) Make sure `make rehash' target really finds the `openssl' program. 9803 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9804 9805 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 9806 like to hear about it if this slows down other processors. 9807 [Ben Laurie] 9808 9809 *) Add CygWin32 platform information to Configure script. 9810 [Alan Batie <batie@aahz.jf.intel.com>] 9811 9812 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 9813 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 9814 9815 *) New program nseq to manipulate netscape certificate sequences 9816 [Steve Henson] 9817 9818 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 9819 few typos. 9820 [Steve Henson] 9821 9822 *) Fixes to BN code. Previously the default was to define BN_RECURSION 9823 but the BN code had some problems that would cause failures when 9824 doing certificate verification and some other functions. 9825 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9826 9827 *) Add ASN1 and PEM code to support netscape certificate sequences. 9828 [Steve Henson] 9829 9830 *) Add ASN1 and PEM code to support netscape certificate sequences. 9831 [Steve Henson] 9832 9833 *) Add several PKIX and private extended key usage OIDs. 9834 [Steve Henson] 9835 9836 *) Modify the 'ca' program to handle the new extension code. Modify 9837 openssl.cnf for new extension format, add comments. 9838 [Steve Henson] 9839 9840 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 9841 and add a sample to openssl.cnf so req -x509 now adds appropriate 9842 CA extensions. 9843 [Steve Henson] 9844 9845 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 9846 error code, add initial support to X509_print() and x509 application. 9847 [Steve Henson] 9848 9849 *) Takes a deep breath and start addding X509 V3 extension support code. Add 9850 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 9851 stuff is currently isolated and isn't even compiled yet. 9852 [Steve Henson] 9853 9854 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 9855 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 9856 Removed the versions check from X509 routines when loading extensions: 9857 this allows certain broken certificates that don't set the version 9858 properly to be processed. 9859 [Steve Henson] 9860 9861 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 9862 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 9863 can still be regenerated with "make depend". 9864 [Ben Laurie] 9865 9866 *) Spelling mistake in C version of CAST-128. 9867 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 9868 9869 *) Changes to the error generation code. The perl script err-code.pl 9870 now reads in the old error codes and retains the old numbers, only 9871 adding new ones if necessary. It also only changes the .err files if new 9872 codes are added. The makefiles have been modified to only insert errors 9873 when needed (to avoid needlessly modifying header files). This is done 9874 by only inserting errors if the .err file is newer than the auto generated 9875 C file. To rebuild all the error codes from scratch (the old behaviour) 9876 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 9877 or delete all the .err files. 9878 [Steve Henson] 9879 9880 *) CAST-128 was incorrectly implemented for short keys. The C version has 9881 been fixed, but is untested. The assembler versions are also fixed, but 9882 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 9883 to regenerate it if needed. 9884 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 9885 Hagino <itojun@kame.net>] 9886 9887 *) File was opened incorrectly in randfile.c. 9888 [Ulf M�ller <ulf@fitug.de>] 9889 9890 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 9891 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 9892 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 9893 al: it's just almost always a UTCTime. Note this patch adds new error 9894 codes so do a "make errors" if there are problems. 9895 [Steve Henson] 9896 9897 *) Correct Linux 1 recognition in config. 9898 [Ulf M�ller <ulf@fitug.de>] 9899 9900 *) Remove pointless MD5 hash when using DSA keys in ca. 9901 [Anonymous <nobody@replay.com>] 9902 9903 *) Generate an error if given an empty string as a cert directory. Also 9904 generate an error if handed NULL (previously returned 0 to indicate an 9905 error, but didn't set one). 9906 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 9907 9908 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 9909 [Ben Laurie] 9910 9911 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 9912 parameters. This was causing a warning which killed off the Win32 compile. 9913 [Steve Henson] 9914 9915 *) Remove C++ style comments from crypto/bn/bn_local.h. 9916 [Neil Costigan <neil.costigan@celocom.com>] 9917 9918 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 9919 based on a text string, looking up short and long names and finally 9920 "dot" format. The "dot" format stuff didn't work. Added new function 9921 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 9922 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 9923 OID is not part of the table. 9924 [Steve Henson] 9925 9926 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 9927 X509_LOOKUP_by_alias(). 9928 [Ben Laurie] 9929 9930 *) Sort openssl functions by name. 9931 [Ben Laurie] 9932 9933 *) Get the gendsa program working (hopefully) and add it to app list. Remove 9934 encryption from sample DSA keys (in case anyone is interested the password 9935 was "1234"). 9936 [Steve Henson] 9937 9938 *) Make _all_ *_free functions accept a NULL pointer. 9939 [Frans Heymans <fheymans@isaserver.be>] 9940 9941 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 9942 NULL pointers. 9943 [Anonymous <nobody@replay.com>] 9944 9945 *) s_server should send the CAfile as acceptable CAs, not its own cert. 9946 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 9947 9948 *) Don't blow it for numeric -newkey arguments to apps/req. 9949 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 9950 9951 *) Temp key "for export" tests were wrong in s3_srvr.c. 9952 [Anonymous <nobody@replay.com>] 9953 9954 *) Add prototype for temp key callback functions 9955 SSL_CTX_set_tmp_{rsa,dh}_callback(). 9956 [Ben Laurie] 9957 9958 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 9959 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 9960 [Steve Henson] 9961 9962 *) X509_name_add_entry() freed the wrong thing after an error. 9963 [Arne Ansper <arne@ats.cyber.ee>] 9964 9965 *) rsa_eay.c would attempt to free a NULL context. 9966 [Arne Ansper <arne@ats.cyber.ee>] 9967 9968 *) BIO_s_socket() had a broken should_retry() on Windoze. 9969 [Arne Ansper <arne@ats.cyber.ee>] 9970 9971 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 9972 [Arne Ansper <arne@ats.cyber.ee>] 9973 9974 *) Make sure the already existing X509_STORE->depth variable is initialized 9975 in X509_STORE_new(), but document the fact that this variable is still 9976 unused in the certificate verification process. 9977 [Ralf S. Engelschall] 9978 9979 *) Fix the various library and apps files to free up pkeys obtained from 9980 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 9981 [Steve Henson] 9982 9983 *) Fix reference counting in X509_PUBKEY_get(). This makes 9984 demos/maurice/example2.c work, amongst others, probably. 9985 [Steve Henson and Ben Laurie] 9986 9987 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 9988 `openssl' and second, the shortcut symlinks for the `openssl <command>' 9989 are no longer created. This way we have a single and consistent command 9990 line interface `openssl <command>', similar to `cvs <command>'. 9991 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 9992 9993 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 9994 BIT STRING wrapper always have zero unused bits. 9995 [Steve Henson] 9996 9997 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 9998 [Steve Henson] 9999 10000 *) Make the top-level INSTALL documentation easier to understand. 10001 [Paul Sutton] 10002 10003 *) Makefiles updated to exit if an error occurs in a sub-directory 10004 make (including if user presses ^C) [Paul Sutton] 10005 10006 *) Make Montgomery context stuff explicit in RSA data structure. 10007 [Ben Laurie] 10008 10009 *) Fix build order of pem and err to allow for generated pem.h. 10010 [Ben Laurie] 10011 10012 *) Fix renumbering bug in X509_NAME_delete_entry(). 10013 [Ben Laurie] 10014 10015 *) Enhanced the err-ins.pl script so it makes the error library number 10016 global and can add a library name. This is needed for external ASN1 and 10017 other error libraries. 10018 [Steve Henson] 10019 10020 *) Fixed sk_insert which never worked properly. 10021 [Steve Henson] 10022 10023 *) Fix ASN1 macros so they can handle indefinite length construted 10024 EXPLICIT tags. Some non standard certificates use these: they can now 10025 be read in. 10026 [Steve Henson] 10027 10028 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10029 into a single doc/ssleay.txt bundle. This way the information is still 10030 preserved but no longer messes up this directory. Now it's new room for 10031 the new set of documenation files. 10032 [Ralf S. Engelschall] 10033 10034 *) SETs were incorrectly DER encoded. This was a major pain, because they 10035 shared code with SEQUENCEs, which aren't coded the same. This means that 10036 almost everything to do with SETs or SEQUENCEs has either changed name or 10037 number of arguments. 10038 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10039 10040 *) Fix test data to work with the above. 10041 [Ben Laurie] 10042 10043 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10044 was already fixed by Eric for 0.9.1 it seems. 10045 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10046 10047 *) Autodetect FreeBSD3. 10048 [Ben Laurie] 10049 10050 *) Fix various bugs in Configure. This affects the following platforms: 10051 nextstep 10052 ncr-scde 10053 unixware-2.0 10054 unixware-2.0-pentium 10055 sco5-cc. 10056 [Ben Laurie] 10057 10058 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10059 before they are needed. 10060 [Ben Laurie] 10061 10062 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10063 [Ben Laurie] 10064 10065 10066 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10067 10068 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10069 changed SSLeay to OpenSSL in version strings. 10070 [Ralf S. Engelschall] 10071 10072 *) Some fixups to the top-level documents. 10073 [Paul Sutton] 10074 10075 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10076 because the symlink to include/ was missing. 10077 [Ralf S. Engelschall] 10078 10079 *) Incorporated the popular no-RSA/DSA-only patches 10080 which allow to compile a RSA-free SSLeay. 10081 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10082 10083 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10084 when "ssleay" is still not found. 10085 [Ralf S. Engelschall] 10086 10087 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10088 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10089 10090 *) Updated the README file. 10091 [Ralf S. Engelschall] 10092 10093 *) Added various .cvsignore files in the CVS repository subdirs 10094 to make a "cvs update" really silent. 10095 [Ralf S. Engelschall] 10096 10097 *) Recompiled the error-definition header files and added 10098 missing symbols to the Win32 linker tables. 10099 [Ralf S. Engelschall] 10100 10101 *) Cleaned up the top-level documents; 10102 o new files: CHANGES and LICENSE 10103 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10104 o merged COPYRIGHT into LICENSE 10105 o removed obsolete TODO file 10106 o renamed MICROSOFT to INSTALL.W32 10107 [Ralf S. Engelschall] 10108 10109 *) Removed dummy files from the 0.9.1b source tree: 10110 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10111 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10112 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10113 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10114 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10115 [Ralf S. Engelschall] 10116 10117 *) Added various platform portability fixes. 10118 [Mark J. Cox] 10119 10120 *) The Genesis of the OpenSSL rpject: 10121 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10122 Young and Tim J. Hudson created while they were working for C2Net until 10123 summer 1998. 10124 [The OpenSSL Project] 10125 10126 10127 Changes between 0.9.0b and 0.9.1b [not released] 10128 10129 *) Updated a few CA certificates under certs/ 10130 [Eric A. Young] 10131 10132 *) Changed some BIGNUM api stuff. 10133 [Eric A. Young] 10134 10135 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10136 DGUX x86, Linux Alpha, etc. 10137 [Eric A. Young] 10138 10139 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10140 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10141 available). 10142 [Eric A. Young] 10143 10144 *) Add -strparse option to asn1pars program which parses nested 10145 binary structures 10146 [Dr Stephen Henson <shenson@bigfoot.com>] 10147 10148 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10149 [Eric A. Young] 10150 10151 *) DSA fix for "ca" program. 10152 [Eric A. Young] 10153 10154 *) Added "-genkey" option to "dsaparam" program. 10155 [Eric A. Young] 10156 10157 *) Added RIPE MD160 (rmd160) message digest. 10158 [Eric A. Young] 10159 10160 *) Added -a (all) option to "ssleay version" command. 10161 [Eric A. Young] 10162 10163 *) Added PLATFORM define which is the id given to Configure. 10164 [Eric A. Young] 10165 10166 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10167 [Eric A. Young] 10168 10169 *) Extended the ASN.1 parser routines. 10170 [Eric A. Young] 10171 10172 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10173 [Eric A. Young] 10174 10175 *) Added a BN_CTX to the BN library. 10176 [Eric A. Young] 10177 10178 *) Fixed the weak key values in DES library 10179 [Eric A. Young] 10180 10181 *) Changed API in EVP library for cipher aliases. 10182 [Eric A. Young] 10183 10184 *) Added support for RC2/64bit cipher. 10185 [Eric A. Young] 10186 10187 *) Converted the lhash library to the crypto/mem.c functions. 10188 [Eric A. Young] 10189 10190 *) Added more recognized ASN.1 object ids. 10191 [Eric A. Young] 10192 10193 *) Added more RSA padding checks for SSL/TLS. 10194 [Eric A. Young] 10195 10196 *) Added BIO proxy/filter functionality. 10197 [Eric A. Young] 10198 10199 *) Added extra_certs to SSL_CTX which can be used 10200 send extra CA certificates to the client in the CA cert chain sending 10201 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10202 [Eric A. Young] 10203 10204 *) Now Fortezza is denied in the authentication phase because 10205 this is key exchange mechanism is not supported by SSLeay at all. 10206 [Eric A. Young] 10207 10208 *) Additional PKCS1 checks. 10209 [Eric A. Young] 10210 10211 *) Support the string "TLSv1" for all TLS v1 ciphers. 10212 [Eric A. Young] 10213 10214 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10215 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10216 [Eric A. Young] 10217 10218 *) Fixed a few memory leaks. 10219 [Eric A. Young] 10220 10221 *) Fixed various code and comment typos. 10222 [Eric A. Young] 10223 10224 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10225 bytes sent in the client random. 10226 [Edward Bishop <ebishop@spyglass.com>] 10227 10228